the age of invention-及16准
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!!!!隆堋響頼紗秘慕禰厮宴和肝写偬堋響
gon and peddled through the country。 Later his establishment grew large。 Another John Lane察a son of the first察patented in 1868 a ;soft´center; steel plough。 The hard but brittle surface was backed by softer and more tenacious metal察to reduce the breakage。 The same year James Oliver察a Scotch immigrant who had settled at South Bend察Indiana察received a patent for the ;chilled plough。; By an ingenious method the wearing surfaces of the casting were cooled more quickly than the back。 The surfaces which came in contact with the soil had a hard察glassy surface察while the body of the plough was of tough iron。 From small beginnings Oliver's establishment grew great察and the Oliver Chilled Plow Works at South Bend is today one of the largest and most favorably known privately owned industries in the United States。
From the single plough it was only a step to two or more ploughs fastened together察doing more work with approximately the same man power。 The sulky plough察on which the ploughman rode察made his work easier察and gave him great control。 Such ploughs were certainly in use as early as 1844察perhaps earlier。 The next step forward was to substitute for horses a traction engine。 Today one may see on thousands of farms a tractor pulling six察eight察ten察or more ploughs察doing the work better than it could be done by an individual ploughman。 On the ;Bonanza; farms of the West a fifty horsepower engine draws sixteen ploughs察followed by harrows and a grain drill察and performs the three operations of ploughing察harrowing察and planting at the same time and covers fifty acres or more in a day。
The basic ideas in drills for small grains were successfully developed in Great Britain察and many British drills were sold in the United States before one was manufactured here。 American manufacture of these drills began about 1840。 Planters for corn came somewhat later。 Machines to plant wheat successfully were unsuited to corn察which must be planted less profusely than wheat。
The American pioneers had only a sickle or a scythe with which to cut their grain。 The addition to the scythe of wooden fingers察against which the grain might lie until the end of the swing察was a natural step察and seems to have been taken quite independently in several places察perhaps as early as 1803。 Grain cradles are still used in hilly regions and in those parts of the country where little grain is grown。
The first attempts to build a machine to cut grain were made in England and Scotland察several of them in the eighteenth century察and in 1822 Henry Ogle察a schoolmaster in Rennington察made a mechanical reaper察but the opposition of the laborers of the vicinity察who feared loss of employment察prevented further development。 In 1826察Patrick Bell察a young Scotch student察afterward a Presbyterian minister察who had been moved by the fatigue of the harvesters upon his father's farm in Argyllshire察made an attempt to lighten their labor。 His reaper was pushed by horses察a reel brought the grain against blades which opened and closed like scissors察and a traveling canvas apron deposited the grain at one side。 The inventor received a prize from the Highland and Agricultural Society of Edinburgh察and pictures and full descriptions of his invention were published。 Several models of this reaper were built in Great Britain察and it is said that four came to the United States察however this may be察Bell's machine was never generally adopted。
Soon afterward three men patented reapers in the United States此William Manning察Plainfield察New Jersey察1831察Obed Hussey察Cincinnati察Ohio察1833察and Cyrus Hall McCormick察Staunton察Virginia察1834。 Just how much they owed to Patrick Bell cannot be known察but it is probable that all had heard of his design if they had not seen his drawings or the machine itself。 The first of these inventors察Manning of New Jersey察drops out of the story察for it is not known whether he ever made a machine other than his model。 More persistent was Obed Hussey of Cincinnati察who soon moved to Baltimore to fight out the issue with McCormick。 Hussey was an excellent mechanic。 He patented several improvements to his machine and received high praise for the efficiency of the work。 But he was soon outstripped in the race because he was weak in the essential qualities which made McCormick the greatest figure in the world of agricultural machinery。 McCormick was more than a mechanic察he was a man of vision察and he had the enthusiasm of a crusader and superb genius for business organization and advertisement。 His story has been told in another volume of this series。*
* ;The Age of Big Business;察by Burton J。 Hendrick。
Though McCormick offered reapers for sale in 1834察he seems to have sold none in that year察nor any for six years afterwards。 He sold two in 1840察seven in 1842察fifty in 1844。 The machine was not really adapted to the hills of the Valley of Virginia察and farmers hesitated to buy a contrivance which needed the attention of a skilled mechanic。 McCormick made a trip through the Middle West。 In the rolling prairies察mile after mile of rich soil without a tree or a stone察he saw his future dominion。 Hussey had moved East。 McCormick did the opposite察he moved West察to Chicago察in 1847。
Chicago was then a town of hardly ten thousand察but McCormick foresaw its future察built a factory there察and manufactured five hundred machines for the harvest of 1848。 From this time he went on from triumph to triumph。 He formulated an elaborate business system。 His machines were to be sold at a fixed price察payable in installments if desired察with a guarantee of satisfaction。 He set up a system of agencies to give instruction or to supply spare parts。 Advertising察chiefly by exhibitions and contests at fairs and other public gatherings察was another item of his programme。 All would have failed察of course察if he had not built good machines察but he did build good machines察and was not daunted by the Government's refusal in 1848 to renew his original patent。 He decided to make profits as a manufacturer rather than accept royalties as an inventor。
McCormick had many competitors察and some of them were in the field with improved devices ahead of him察but he always held his own察either by buying up the patent for a real improvement察or else by requiring his staff to invent something to do the same work。 Numerous new devices to improve the harvester were patented察but the most important was an automatic attachment to bind the sheaves with wire。 This was patented in 1872察and McCormick soon made it his own。 The harvester seemed complete。 One man drove the team察and the machine cut the grain察bound it in sheaves察and deposited them upon the ground。
Presently察however察complaints were heard of the wire tie。 When the wheat was threshed察bits of wire got into the straw察and were swallowed by the cattle察or else the bits of metal got among the wheat itself and gave out sparks in grinding察setting some mills on fire。 Two inventors察almost simultaneously察produced the remedy。 Marquis L。 Gorham察working for McCormick察and John F。 Appleby察whose invention was purchased by William Deering察one of McCormick's chief competitors察invented binders which used twine。 By 1880 the self´binding harvester was complete。 No distinctive improvement has been made since察except to add strength and simplification。 The machine now needed the services of only two men察one to drive and the other to shock the bundles察and could reap twenty acres or more a day察tie the grain into bundles of uniform size察and dump them in piles of five ready to be shocked。
Grain must be separated from the straw and chaff。 The Biblical threshing floor察on which oxen or horses trampled out the grain察was still common in Washington's time察though it had been largely succeeded by the flail。 In Great Britain several threshing machines were devised in the eighteenth century察but none was particularly successful。 They were stationary察and it was necessary to bring the sheaves to them。 The seventh patent issued by the United States察to Samuel Mulliken of Philadelphia察was for a threshing machine。 The portable horse´power treadmill察invented in 1830 by Hiram A。 and John A。 Pitts of Winthrop察Maine察was presently coupled with a thresher察or ;separator察─and this outfit察with its men and horses察moving from farm to farm察soon became an autumn feature of every neighborhood。 The treadmill was later on succeededby the traction engine察and the apparatus now in common use is an engine which draws the greatly improved threshing machine from farm to farm察and when the destination is reached察furnishes the power to drive the thresher。 Many of these engines are adapted to the use of straw as fuel。
Another development was the combination harvester and thresher used on the larger farms of the West。 This machine does not cut the wheat close to the ground察but the cutter´bar察over twenty´five feet in length察takes off the heads。 The wheat is separated from the chaff and automatically weighed into sacks察which are dumped as fast as two expert sewers can work。 The motive power is a traction engine or else twenty to thirty horses察and seventy´five acres a day can be reaped and threshed。 Often another tractor pulling a dozen wagons follow