1 00:00:01,299 --> 00:00:05,298 [Door opens, footsteps] 2 00:00:05,299 --> 00:00:08,298 [Creak!] [THUD!] 3 00:00:08,299 --> 00:00:10,698 [Jazzy music: 'The Russians Are Coming' - Val Bennett] [vaccum cleaner noise] 4 00:00:10,699 --> 00:00:12,698 [Jazzy music: 'The Russians Are Coming' - Val Bennett] [TV static noise] 5 00:00:12,699 --> 00:00:15,199 [Jazzy music: 'The Russians Are Coming' - Val Bennett] [Steam hisses] 6 00:00:15,200 --> 00:00:17,089 [Jazzy music: 'The Russians Are Coming' - Val Bennett] 7 00:00:17,090 --> 00:00:19,089 [Jazzy music: 'The Russians Are Coming' - Val Bennett] [sewing machine rattles] 8 00:00:19,090 --> 00:00:21,089 [Jazzy music: 'The Russians Are Coming' - Val Bennett] [*Whoop!*] 9 00:00:21,090 --> 00:00:37,199 [Jazzy music: 'The Russians Are Coming' - Val Bennett] 10 00:00:39,200 --> 00:00:44,320 Tim: The sewing machine was really the first machine of any sort to enter the home. 11 00:00:44,321 --> 00:00:50,068 When it first appeared in the 1850s, it was regarded as the miracle of its age. 12 00:00:50,069 --> 00:00:54,144 To the people of the time, it must have seemed almost inconceivable 13 00:00:54,145 --> 00:00:57,699 that a machine could do such a fiddly and complicated action as sewing. 14 00:00:57,700 --> 00:01:03,788 That I find quite difficult enough with both hands, and a lot of concentration. 15 00:01:06,200 --> 00:01:08,199 Personally I still find sewing machines quite magical. 16 00:01:08,200 --> 00:01:13,399 How effortlessly they work, producing such perfect stitches 17 00:01:13,400 --> 00:01:16,399 and without hardly ever tangling up. 18 00:01:25,500 --> 00:01:29,298 To make a machine that directly imitated hand sewing would be very difficult. 19 00:01:29,299 --> 00:01:34,298 The real secret of machine sewing has been to find a completely different sort of stitch 20 00:01:34,299 --> 00:01:37,199 that's more suitable. 21 00:01:37,200 --> 00:01:39,399 The first clues came from a sort of embroidery decoration 22 00:01:39,400 --> 00:01:42,798 popular in the 18th century. 23 00:01:42,799 --> 00:01:48,999 This used a hooked needle, and formed a so-called chain stitch. 24 00:01:51,000 --> 00:01:53,298 The needle never needs to go right through the fabric 25 00:01:53,299 --> 00:01:59,298 so it can be firmly fixed to part of a machine at the top 26 00:02:00,900 --> 00:02:07,899 The first attempts at mechanical sewing imitated this embroidery stitch. 27 00:02:11,099 --> 00:02:13,698 The first patent was granted to Thomas Saint, 28 00:02:13,699 --> 00:02:17,499 an English cabinet maker, in 1790. 29 00:02:17,500 --> 00:02:19,999 When a model was made from his drawings 100 years later 30 00:02:20,000 --> 00:02:23,299 it had to be extensively modified before it would work. 31 00:02:23,300 --> 00:02:28,299 So it's doubtful whether Saint ever actually built one. 32 00:02:29,000 --> 00:02:32,198 [sawing] 33 00:02:32,199 --> 00:02:35,999 The first person to build a sewing machine and put it to any practical use 34 00:02:36,000 --> 00:02:38,499 was a French tailor called Thimonnier. 35 00:02:38,500 --> 00:02:42,299 [hammering] Thimonnier: Ahh! Oh my thumb! Oh! 36 00:02:42,300 --> 00:02:46,299 [planing] 37 00:02:46,300 --> 00:02:49,299 Qu'est-ce que c'est? 38 00:02:49,300 --> 00:02:52,098 After years of failure, he finally patented a machine in 1830. 39 00:02:52,099 --> 00:02:57,299 [machinery noise] By 1841 he had 80 machines stitching clothing in a Paris factory. 40 00:02:57,300 --> 00:03:01,098 [machinery noise] Bonjour, Bonjour... 41 00:03:01,099 --> 00:03:03,098 Tailors: Oharrgh... 42 00:03:03,099 --> 00:03:07,698 An angry crowd of tailors, fearing that the invention would rob them of their livelihood 43 00:03:07,699 --> 00:03:11,198 then broke into the factory and destroyed the machines. 44 00:03:11,199 --> 00:03:14,198 [muffled shouting] [smashing machinery] 45 00:03:16,199 --> 00:03:18,499 Thimonnier was ruined, and eventually died pennyless. 46 00:03:19,500 --> 00:03:23,999 This is a model of Thimonnier's machine, in the Science Museum. 47 00:03:24,000 --> 00:03:27,099 Which exactly imitates the hand embrodery stitch. 48 00:03:27,100 --> 00:03:30,499 We're having some trouble in, er, making it stitch 49 00:03:30,500 --> 00:03:35,499 but, er, we had a go and made it do a few stitches... 50 00:03:37,500 --> 00:03:46,499 [Bang....Bang....Bang...] 51 00:03:46,500 --> 00:03:53,899 (It's working perfectly!) [Bang...] 52 00:03:53,900 --> 00:03:58,198 Ahh... Rex: (Okay, that's better) 53 00:03:58,199 --> 00:04:00,799 We haven't managed to make it stitch very neatly 54 00:04:00,800 --> 00:04:03,498 But even if the machine was properly set up, 55 00:04:03,499 --> 00:04:09,598 chain stitch still has the disadvantage that it's very easily pulled apart. 56 00:04:09,599 --> 00:04:15,198 Unknown to Thimonnier , other inventors were experimenting with a different sort of stitch, 57 00:04:15,199 --> 00:04:18,898 lock stitch, using two seperate reels of cotton. 58 00:04:18,899 --> 00:04:23,099 The machines were more complicated, but the stitches they produced were neater. 59 00:04:23,100 --> 00:04:25,898 And, er, they didn't pull apart so easily. 60 00:04:25,899 --> 00:04:30,499 The secret of these machines was really the brilliant shape of the needle itself. 61 00:04:30,500 --> 00:04:34,398 We've made a giant one here 62 00:04:34,399 --> 00:04:37,499 and you can see the eye is in the pointed end of the needle 63 00:04:37,500 --> 00:04:40,799 and it has a groove all the way up one side 64 00:04:40,800 --> 00:04:43,799 that the thread can slip through. 65 00:04:44,600 --> 00:04:48,599 Well, with the real needle, if I push it through a bit of, er, cotton 66 00:04:48,600 --> 00:04:51,499 and pull it out again, 67 00:04:51,500 --> 00:04:54,299 it automatically leaves a loop underneath. 68 00:04:54,300 --> 00:04:57,599 And all the machine needs to form a stitch 69 00:04:57,600 --> 00:05:00,039 is to pass the second reel of cotton through the loop. 70 00:05:00,300 --> 00:05:07,398 The first lock-stitch machine was built in America by an inventor called Walter Hunt in about 1833. 71 00:05:07,399 --> 00:05:12,398 It didn't work very well, so he lost interest, and didn't even bother to patent it. 72 00:05:12,399 --> 00:05:17,499 Elias Howe patented an improved machine in 1845 73 00:05:17,500 --> 00:05:20,049 and despite an initial lack of interest 74 00:05:20,050 --> 00:05:23,499 this then acted as a catalyst to other American inventors 75 00:05:23,500 --> 00:05:28,619 and within 10 years, all the major elements of a modern sewing machine had been introduced. 76 00:05:28,800 --> 00:05:33,299 I'm going to try and demonstrate these with this human sewing machine 77 00:05:33,300 --> 00:05:36,398 stitching together two sheets of expanded polystyrene [hideous polystyrene squeaking noises] 78 00:05:36,399 --> 00:05:38,898 The needle goes through the material... 79 00:05:38,899 --> 00:05:41,499 ...the bottom bobbin is pushed through the loop... 80 00:05:41,500 --> 00:05:44,698 ...the needle comes out and the stitch is pulled tight... [squeaking] 81 00:05:44,699 --> 00:05:46,999 ...and the material is pulled forward. [squeaking] 82 00:05:47,000 --> 00:05:58,898 [SQUEAKING!] 83 00:06:00,899 --> 00:06:04,398 Every lock-stitch machine has these four movements. [squeaking] 84 00:06:04,399 --> 00:06:08,099 Pushing through the needle, passing the loop round the bobbin 85 00:06:08,100 --> 00:06:15,099 pulling the stitch tight, and moving the material forward. 86 00:06:19,100 --> 00:06:23,799 The movements are all connected to the motor by a series of ingenious mechanical linkages. 87 00:06:23,800 --> 00:06:27,898 First, the linkage to the needle itself. 88 00:06:27,899 --> 00:06:35,218 This is often just a crank; the simplest way to get an up-and-down motion from a rotation. 89 00:06:38,219 --> 00:06:40,999 Next the device that pulls the stitch tight. 90 00:06:41,000 --> 00:06:44,398 This is basically an arm that flies up at the right moment 91 00:06:44,399 --> 00:06:46,398 just as Ellie's was doing. 92 00:06:46,399 --> 00:06:49,999 But Ellie also had to grip the thread with her other hand 93 00:06:50,000 --> 00:06:53,799 to stop the thread being pulled from the reel instead of through the stitch. 94 00:06:53,800 --> 00:06:59,099 So on a sewing machine, there's a sort of friction pully between the cotton reel and the arm. 95 00:06:59,100 --> 00:07:04,569 It's getting the thread to pass cleanly through these two things before the needle 96 00:07:04,570 --> 00:07:08,299 that always makes threading up a machine so elaborate. 97 00:07:08,300 --> 00:07:11,698 The action of the arm itself is surprisingly simple 98 00:07:11,699 --> 00:07:17,698 ...just two levers fixed to the needle mechanism. 99 00:07:17,699 --> 00:07:19,698 [click] 100 00:07:19,899 --> 00:07:27,799 It's wonderful what a vast range of movements can be derived from simple cranks and levers. 101 00:07:30,800 --> 00:07:34,499 These are some collecting boxes I made for the Science Museum. 102 00:07:34,500 --> 00:07:37,299 They're actually portraits of people who work here. 103 00:07:37,300 --> 00:07:39,299 The Idea was to show exactly what a donation would fund 104 00:07:39,300 --> 00:07:44,799 so a pound makes them work for 10 times as long as 10p. 105 00:07:46,800 --> 00:07:49,499 [coin rattles through mechanism] 106 00:07:49,500 --> 00:07:54,599 This is the curator. He takes the pipe out of his mouth and scratches his head. 107 00:07:54,600 --> 00:07:58,499 If you look inside, you can see the arm is a simple crank, 108 00:07:58,500 --> 00:08:01,599 connected to a geared motor. 109 00:08:01,600 --> 00:08:05,708 [electric motor whine] 110 00:08:05,709 --> 00:08:07,708 Back to the sewing machine... 111 00:08:07,709 --> 00:08:10,299 The next action is passing the thread loop rouind the bobbin. 112 00:08:10,300 --> 00:08:14,099 This is what Ian was doing in the human sewing machine. 113 00:08:14,100 --> 00:08:17,078 To me this is the most magical part, 114 00:08:17,079 --> 00:08:21,099 how it manages to do it without tangling up. 115 00:08:22,100 --> 00:08:25,599 On a real machine, instead of passing the bobbin through the loop, 116 00:08:25,600 --> 00:08:30,499 the bobbin stays still, and a sort of rotating hook 117 00:08:30,500 --> 00:08:36,199 pulls the loop so it's large enough to pass right over the bobbin. 118 00:08:36,200 --> 00:08:45,199 With the bobbin back in place, all you can actually see is the red thread slipping round the outside. 119 00:09:04,749 --> 00:09:06,748 The last movement, pulling the cloth forward for the next 120 00:09:07,200 --> 00:09:10,999 stitch, is technically called a four-motion feed 121 00:09:11,000 --> 00:09:17,539 because the loose metal bit moves forward, backward, down and up again. 122 00:09:18,540 --> 00:09:21,798 It does this with these two off-centre rings on the driveshaft. 123 00:09:21,799 --> 00:09:25,298 The one on the right pulls the claw backwards and forwards, 124 00:09:25,299 --> 00:09:27,298 the other one makes it go up and down. 125 00:09:27,299 --> 00:09:31,798 So both combined give the four motions. 126 00:09:31,799 --> 00:09:36,069 This completes the basic mechanism; all four movements connected 127 00:09:36,070 --> 00:09:40,199 to a single driveshaft. 128 00:09:42,200 --> 00:09:46,499 Maggie: This is actually a toy, made in Germany, about 1893 129 00:09:46,500 --> 00:09:52,499 it's called the Nuremberg Lady, or Nuremberg Princess. 130 00:09:52,500 --> 00:09:54,699 It's patented. 131 00:09:55,700 --> 00:09:59,298 The cotton goes in here, that's the bobbin... 132 00:09:59,299 --> 00:10:01,298 ...comes through a tensioning system... 133 00:10:01,299 --> 00:10:04,499 ...comes across here; the needle would have been held in her hand 134 00:10:04,500 --> 00:10:07,898 ...see, her head nods. 135 00:10:07,899 --> 00:10:13,768 Although it is a toy, it has all the mechanical characteristics 136 00:10:13,769 --> 00:10:17,339 of an ordinary sewing machine. 137 00:10:17,340 --> 00:10:20,298 I've been collecting sewing machines for about 15 years. 138 00:10:20,299 --> 00:10:24,798 ...and about 3 years ago, a few of us got together and decided to form a society 139 00:10:24,799 --> 00:10:29,199 to pass on information and share information, and find out what was going on. 140 00:10:29,200 --> 00:10:35,699 And it is now an international sewing machine collectors' society (ISMCS) 141 00:10:36,700 --> 00:10:39,199 And we have members all through the world: America, Australia, Hong Kong, 142 00:10:39,200 --> 00:10:44,499 all throughout Europe. And I've just brought along one or two of my machines to show 143 00:10:44,500 --> 00:10:51,499 the different types that are available. These, that comes from France, Germany - those are America 144 00:10:51,500 --> 00:10:55,599 This is Glasgow, and this is from Coventry; an English-made machine. 145 00:10:55,600 --> 00:10:59,199 And every one is slightly different, the way it developed. 146 00:10:59,200 --> 00:11:03,599 Well, a very unusual machine is this little one here... 147 00:11:03,600 --> 00:11:07,699 unlike the rest of the machines, this isn't painted or brightly coloured 148 00:11:07,700 --> 00:11:11,298 it's nickel-plated, looking a bit like a giant stapler. 149 00:11:11,299 --> 00:11:16,419 [loud mechanical clacking] It's a very nice noise, a bit like a puffer train. 150 00:11:16,420 --> 00:11:20,699 Now there's absolutly no reason whatsoever why this machine should have hands 151 00:11:20,700 --> 00:11:23,599 no reason apart from being pretty 152 00:11:23,600 --> 00:11:26,069 why somebody should do it, I don't know. 153 00:11:26,070 --> 00:11:30,699 Was made in Coventry by a man called Stardy, and his trademark 154 00:11:30,700 --> 00:11:32,798 was Lady Godiva, on a horse. 155 00:11:32,799 --> 00:11:35,599 The Lion: the beast. 156 00:11:35,600 --> 00:11:39,499 Ahh, was made by a Glasgow company called Kimble & Walton, 157 00:11:39,500 --> 00:11:45,099 about 1863ish. As a sewing machine it's quite ordinary; just a shuttle mechanism 158 00:11:45,100 --> 00:11:48,099 it's just unusual because of its shape. 159 00:11:48,100 --> 00:11:51,898 [mechanical rattling] Well this is a French machine. 160 00:11:51,899 --> 00:11:55,798 [machine jams] It's called "La Populare". 161 00:11:55,799 --> 00:12:00,199 And it's certainly a popular machine among collectors. 162 00:12:00,200 --> 00:12:05,999 Although it's called... It works on an leverage(?) system, we always call it "the pusher" 163 00:12:06,000 --> 00:12:12,798 [mechanical clanking] 164 00:12:12,799 --> 00:12:18,099 And it is one of the very few to use this unusual push-start mechanism. 165 00:12:18,100 --> 00:12:23,499 But we've seen all these very different looking; very complicated; 166 00:12:23,500 --> 00:12:25,798 very simple mechanism machines. 167 00:12:25,799 --> 00:12:30,599 But one of the simplest; one of the prettiest; one of the most popular 168 00:12:30,600 --> 00:12:32,999 and probably, in my opinion, one of the best... 169 00:12:33,000 --> 00:12:43,699 The Wilcox & Gibbs [solid mechanical clicking] 170 00:12:46,700 --> 00:12:51,699 Tim: The early machines were all beautifully decorated. 171 00:12:54,799 --> 00:12:58,898 I think this was because the sewing machine was the first machine to enter the home. 172 00:12:58,899 --> 00:13:01,898 At the time, all other machines were industrial. 173 00:13:01,899 --> 00:13:10,898 Lavish decoration was an attempt to make them look more domesticated. 174 00:13:15,799 --> 00:13:21,099 At first, the different manufacturers' machines had very distinct characteristics. 175 00:13:21,100 --> 00:13:27,199 But by the 20th century, they'd all started looking more and more alike. 176 00:13:31,200 --> 00:13:39,199 This was partly due to the commercial dominance of one particular manufacturer. 177 00:13:42,000 --> 00:13:43,579 [cat meows] 178 00:13:43,580 --> 00:13:48,099 Woman: Oh John, I'm so discouraged - how can I ask anybody to this house the way the furniture looks? 179 00:13:48,100 --> 00:13:50,099 John: Well, it is pretty awful. 180 00:13:50,100 --> 00:13:52,298 But I don't suppose we could buy much with our money... 181 00:13:52,299 --> 00:13:54,298 Woman: Not unless a miracle happened. 182 00:13:54,299 --> 00:13:59,199 [Doorbell] Voiceover: Ah, there's the miracle! Hurry! Hurry! Hurry! Hurry! - Answer that doorbell! 183 00:13:59,200 --> 00:14:02,898 That's the first time I ever saw a miracle in a two-pant(?) suit 184 00:14:02,899 --> 00:14:06,898 But it's the Singer man! Hell send her to the nearest Singer sewing centre 185 00:14:06,899 --> 00:14:09,699 and the miracle man turns her over to that miracle woman 186 00:14:09,700 --> 00:14:13,499 - the sewing teacher to you. Just a few simple lessons on the sewing machine 187 00:14:13,500 --> 00:14:18,099 and her house will be so attractive they'll probably sell it at a profit. 188 00:14:18,100 --> 00:14:21,699 Now take a look at the finished room, with the rest of the girls she's invited over. 189 00:14:21,700 --> 00:14:26,599 Woman2: You don't mean to tell me you made these curtains and seat covers yourself? 190 00:14:26,600 --> 00:14:28,599 Martha: How did you ever make them so perfectly? 191 00:14:28,600 --> 00:14:32,999 It's a grand colourscheme, they must have cost a pretty penny! 192 00:14:33,000 --> 00:14:35,298 Woman: Only 18 dollars and 31 cents! 193 00:14:35,299 --> 00:14:39,999 Martha: What? Say, I wish I could sew like that... 194 00:14:40,000 --> 00:14:42,199 Woman: But you can Martha! Martha: What's that? 195 00:14:42,200 --> 00:14:45,499 Woman: The address of the nearest Singer sewing centre, get it? 196 00:14:45,500 --> 00:14:47,889 Woman2: Oh! 197 00:14:48,600 --> 00:14:52,599 Tim: The company was founded by a man called Isaac Merritt Singer. 198 00:14:52,600 --> 00:14:57,398 [spanner clanks on boiler] 199 00:14:57,399 --> 00:15:01,099 Although Singer was trained as a mechanic, his real love was the theatre. 200 00:15:01,100 --> 00:15:08,599 Homer: Julie, I've always loved ya, honey... can you ever forgive me? Julie: But this is so sudden! Oh Homer... 201 00:15:08,600 --> 00:15:14,298 Tim: In 1839, he managed to sell a design for a mechanical excavator for $2000 [Indistinct: Singer explaining design] 202 00:15:14,299 --> 00:15:18,699 Singer: ...connects to the bucket. It's beautiful! Man: Okay I'll buy it. 203 00:15:18,700 --> 00:15:22,798 Tim: With the money, he set up his own theatre company, called the Merritt Players. 204 00:15:22,799 --> 00:15:28,199 [rustling notes] Singer: I'm rich! I'm rich! Now I can start my theatre company! 205 00:15:28,200 --> 00:15:31,599 Man: Stick em up! Julie: *gasps* No! 206 00:15:31,600 --> 00:15:36,199 [indistinct shouting] Homer: See honey, I told ya I'd save ya! 207 00:15:36,200 --> 00:15:38,898 Homer: Oooh, Julie! Julie: My hero! 208 00:15:38,899 --> 00:15:41,668 [sparse clapping] 209 00:15:41,669 --> 00:15:45,398 Tim: Singer's theatre company went bankrupt after a few years. 210 00:15:45,399 --> 00:15:52,199 [bangs foot on machine] Tim: Then, in 1851, he came across an early, unreliable sewing machine. 211 00:15:52,200 --> 00:15:54,199 Singer: I could do better than this! 212 00:15:54,200 --> 00:16:01,798 [sawing, hammering, power tools, muffled swearing] 213 00:16:01,799 --> 00:16:07,298 Singer: Yeah! (indistinct) Tim: He built his prototype in only 11 days, and then went into production. 214 00:16:07,299 --> 00:16:11,798 Singer's machine wasn't particularly original, but he was brilliant at selling it. 215 00:16:11,799 --> 00:16:15,698 Singer: Okay ladies and gentlemen, this machine sewing before your very eyes! 216 00:16:15,699 --> 00:16:22,399 Woman: Here are your trousers Isaac. [massive applause and cheering] 217 00:16:22,400 --> 00:16:24,399 [Trousers drop: *Voop!*] 218 00:16:24,400 --> 00:16:26,399 Singer: Proves they're gonna work... Yup. 219 00:16:26,400 --> 00:16:33,099 Tim: In partnership with a sober lawyer called Clark, he started the first ever hire-purchase scheme. 220 00:16:33,100 --> 00:16:42,599 By 1867, Singer was a very rich man, with a total of 18 children from a variety of wives and mistresses. [*woomph* of flash powder] 221 00:16:42,600 --> 00:16:48,099 Because the machines were being sold to respectable homes, Clark then persuaded Singer to leave the country. 222 00:16:48,100 --> 00:16:53,599 Clark: It's a one-way ticket. Yer gotta leave town... Singer: Oh? 223 00:16:53,600 --> 00:17:00,699 Tim: Singer eventually settled in Torquay, where he died in 1875, leaving a total of 24 children. 224 00:17:00,700 --> 00:17:02,699 [woman sobs] 225 00:17:02,700 --> 00:17:05,899 [funeral bell] 226 00:17:07,900 --> 00:17:15,598 Tim: From the earliest days of the sewing machine, attempts were made to find a better way of powering it than just turning a handle. 227 00:17:15,599 --> 00:17:22,499 In America, the treadle caught on immediately, because it was a great advantage to have both hands free to control the cloth. 228 00:17:22,500 --> 00:17:26,899 But in Britain, it was regarded with great suspicion for many years. 229 00:17:26,900 --> 00:17:31,399 It was generally thought to be unladylike, and rather harmful for the ankles. 230 00:17:31,400 --> 00:17:38,298 [machine rattles] 231 00:17:38,299 --> 00:17:45,199 Attempts were made to power the machines by waterwheels, giant clockwork motors and steam 232 00:17:45,200 --> 00:17:48,798 but all were inconvenient. 233 00:17:48,799 --> 00:17:54,099 The first electric machines appeared in the 1920s 234 00:17:54,100 --> 00:17:56,999 At first the motor was a seperate lump, bolted on. 235 00:17:57,000 --> 00:18:03,598 Only very gradually did it become integrated in the body of the machine. 236 00:18:06,599 --> 00:18:10,499 The motor itself is connected by a drive belt 237 00:18:10,500 --> 00:18:13,499 this belt used to be rubber, or leather. 238 00:18:13,500 --> 00:18:18,699 But on modern machines, there's a synthetic, toothed belt 239 00:18:18,700 --> 00:18:20,798 which has the big advantage that it doesn't slip. 240 00:18:20,799 --> 00:18:27,098 Thye've now replaced belts, gears and chains on many machines, like photocopiers. 241 00:18:27,099 --> 00:18:31,199 They're quieter, easier to set up, and don't need oiling. 242 00:18:31,200 --> 00:18:37,499 Rex: A couple of years ago, I made this trick suitcase for a conjurer/clown, for a stage show 243 00:18:37,500 --> 00:18:46,098 It does several tricks, 8 in all, but the relevant ones today are that it can walk offstage entriely at its own accord 244 00:18:51,099 --> 00:18:55,199 ...whereupon it can stop, and then it can fall over. 245 00:18:55,200 --> 00:19:02,298 The drive mechanism is worked entirely on toothed belts 246 00:19:02,299 --> 00:19:07,798 ...I use em quite a bit. Two of the toothed belts act as caterpillar tracks 247 00:19:07,799 --> 00:19:19,098 and the third one is the drive. I'll show you it working... [motor whirrs] 248 00:19:20,099 --> 00:19:24,399 [sewing machine clicks] 249 00:19:24,400 --> 00:19:28,598 There are limitations to the movements you can get out of simple cranks and levers 250 00:19:28,599 --> 00:19:31,199 so a lot of sewing machines also use cams. 251 00:19:31,200 --> 00:19:34,798 This machine's actually a cobblers' machine, used for sewing leather. 252 00:19:34,799 --> 00:19:38,798 The cams can create a much wider range of movements 253 00:19:38,799 --> 00:19:42,798 using irregularly shaped slots and discs like this one. 254 00:19:42,799 --> 00:19:52,499 [mechanism clicks] 255 00:19:52,500 --> 00:19:57,499 Just like craks and levers, these have all sorts of uses, and I quite often use them myself. 256 00:19:57,500 --> 00:20:02,899 [mechanism clicks] [horse neighs] Man: Woah! 257 00:20:02,900 --> 00:20:05,598 Tim: this is the warden in the Science Museum. 258 00:20:05,599 --> 00:20:11,999 I made the warden with a simple crank at first, but then he just move his head..... evenly from side to side. 259 00:20:12,000 --> 00:20:15,199 It didn't look at all realistic, it looked entirely mechanical. 260 00:20:15,200 --> 00:20:21,798 then I swapped it for a cam, and that gave it a sort of jerky motion, and he actually looked as if he was looking around. 261 00:20:21,799 --> 00:20:26,399 And looking down at his watch was the same. 262 00:20:26,400 --> 00:20:35,999 Instead of a continuous down and up movement, it needed to be: down, pause and up. 263 00:20:36,000 --> 00:20:37,499 So I used another cam. 264 00:20:37,500 --> 00:20:39,999 This is a doctor I made, who writes out illegible prescriptions. 265 00:20:40,000 --> 00:20:44,098 Cams can be used for really complicated movements. 266 00:20:44,099 --> 00:20:48,499 [mechanism clicks rapidly] 267 00:20:48,500 --> 00:20:52,999 Most modern sewing machines can do a wide variety of fancy stitches. 268 00:20:53,000 --> 00:20:57,999 They look a lot more complicated, but there's only one basic extra movement 269 00:20:58,000 --> 00:21:02,399 and that's moving the needle from side to side. 270 00:21:02,400 --> 00:21:08,098 And by combining sideways needle movements with variable cloth-feed movements 271 00:21:08,099 --> 00:21:12,399 all sorts of fancy stitches become possible. 272 00:21:15,400 --> 00:21:18,598 Each stitch has a different cam. 273 00:21:18,599 --> 00:21:26,588 If I change to a different stitch, the cam-follower moves, and you can see it moving to a different rhythm. 274 00:21:26,599 --> 00:21:38,899 [sewing machine noises] 275 00:21:38,900 --> 00:21:42,798 This is one of the latest electronic machines. 276 00:21:42,799 --> 00:21:48,699 The idea behind it is really quite simple: instead of using cams to vary the needle and the cloth movements 277 00:21:48,700 --> 00:21:51,298 it uses these devices, called stepper motors. 278 00:21:51,299 --> 00:21:55,798 Each pulse of electricity I send it, makes it go round one step. 279 00:21:55,799 --> 00:21:58,899 [motor steps] 280 00:21:58,900 --> 00:22:04,199 And I can use it to move a lever in just the same way as a cam. 281 00:22:04,200 --> 00:22:07,399 I'll try and imitate it over here, err... 282 00:22:07,400 --> 00:22:23,188 [Stepper motor clicks] [Cam motor buzzes] 283 00:22:23,299 --> 00:22:28,798 By programming a microprocessor to produce a rapid sequence of pulses 284 00:22:28,799 --> 00:22:33,899 to control the stepper motor, the movements of the needle can be very accurately controlled. 285 00:22:33,900 --> 00:22:39,499 I think you can see the stepper motor moving the needle in, er, this machine. 286 00:22:39,500 --> 00:22:45,098 The stepper motor is fixed to a cog, which moves the needle in small steps. 287 00:22:45,099 --> 00:22:50,798 [click-click-click] 288 00:22:50,799 --> 00:22:56,399 This machine is a Pfaff. Today Singer has lost its market dominance 289 00:22:56,400 --> 00:23:01,999 and German and Swiss manufactureres now produce the most advanced machines. 290 00:23:02,000 --> 00:23:06,399 But I'm not convinced that all the electronics is really a good idea in the sewing machine. 291 00:23:06,400 --> 00:23:11,399 However good the design, there's still an awful lot more to go wrong than in a basic machine. 292 00:23:11,400 --> 00:23:15,798 And I'm not sure that all the fancy stitches are really worthwhile 293 00:23:15,799 --> 00:23:22,598 - the service engineers that I've talked to say that a lot of people never use them. 294 00:23:23,599 --> 00:23:28,199 With the old mechanical machines that used to last anything up to 100 years 295 00:23:28,200 --> 00:23:33,598 the lack of obsolecence was quite a problem for the manufacturers. 296 00:23:34,599 --> 00:23:39,438 Singer used to have a policy of breaking up any machines take in part-exchange 297 00:23:39,469 --> 00:23:41,598 to reduce the supply of second-hand ones. 298 00:23:41,599 --> 00:23:45,899 I suspect that all the complexity of the fancy stitches has added quite a convenient 299 00:23:45,900 --> 00:23:48,798 degree of obsolecence. 300 00:23:48,799 --> 00:23:53,598 But anyway, the golden age of the domestic sewing machine has already passed. [bell dings] 301 00:23:53,599 --> 00:23:56,899 Woman: Make a garment that's a perfect fit, like the one you made for lady... 302 00:23:56,900 --> 00:23:59,598 Tim: When it first appeared, there were no clothes shops anywhere. 303 00:23:59,599 --> 00:24:02,798 Tim: You either made your own, Woman: Oh! That tickles! 304 00:24:02,799 --> 00:24:04,798 Tim: or if rich enough, got a tailor to do it. 305 00:24:04,799 --> 00:24:06,899 Tailor: It will be a couple of weeks, maam. 306 00:24:06,900 --> 00:24:15,199 [sewing machine noise] Tim: Even a generation ago, most families made some of their own clothes. 307 00:24:18,200 --> 00:24:24,098 Woman: *humming* ...Oh, yes, It's a dream! 308 00:24:25,099 --> 00:24:30,298 Tim: But the sewing machine, as well as speeding up home sewing, also made the off-the-peg clothing industry economically successful. 309 00:24:31,299 --> 00:24:37,098 Woman: Oh, yah. Oh yes. Tim: Home dressmaking is today just a minority hobby 310 00:24:37,099 --> 00:24:40,098 and the home sewing machine has lost its central importance. 311 00:24:40,099 --> 00:24:42,199 Woman: Hmm, a bit tight. 312 00:24:42,200 --> 00:24:45,399 Tim: The old machines were built to last a lifetime. 313 00:24:45,400 --> 00:24:50,199 despite my doubts about the latest ones, they have to some extent carried on this tradition. 314 00:24:50,200 --> 00:24:53,298 And mechanically, they're still surprisingly well-made. 315 00:24:53,299 --> 00:24:58,798 I think that to make the machines fast, quiet and reliable 316 00:24:58,799 --> 00:25:03,798 they have to be quite heavy and rigid, and they also have to be very precisely made. 317 00:25:03,799 --> 00:25:09,098 And it's really these qualities that make them such wonderfully satisfying machines. 318 00:25:09,099 --> 00:25:52,098 [Jazzy music: 'Take 5' - Dave Brubeck]