US11473A - Sawing and iplaning machine - Google Patents

Description

. tr H1 PATENT ormoni. f

` DANIEL cnosn, or HARMoNsBURGi-r PENNSYLVANIA;

l SAWING- PLANING `Specification of Letters Patent No. 211,473, dated I August 8, i854.

Toy all whom, t may concern Be it known that I, Demut CLOSE, of

lflarnionsbrsh, the `Countv of .Crawford and State of Pennsylvania, have invented `Qljff@Hint `Poisons may at the same" `time be working. Each saw or set of `saws Certain `new and useful Improvements in Sawing and PlaningMi'lls of which @the Afolisa full and exact description, refereife 'ibngllad t0 the acompmying drawins 9T th same, making partof ths"`SPeCf cation. l. j

invention and improvement `consists the "peculiar constrnction, arrangement, and combination :of reciprocating planes and `j vhich arehung on a frame capable of carrying from one to four distinct saws or `.oftsaw's and planes, as the nature of fthe timber under operation `or the shape of the pieces :to saw-ed out may require, each set of planes and `,saws or `gang `ofsaws beingl providedwith a separate carriage or restto hold the wood to be cut, at each of withtheir planes can be adjusted so as to project out over the carriages, and theblock or plank being saWed,`to a greateror less distance as circumstances may require.

I` will premise that my sawing machine is mainly intended for the purpose of cutting up plank and scantling into variable sizes and forms in joiners, cabinet makers, carriage builders and other shops of a similar character, in which the operation of workingtin Wood is the chief business.` i Inthe accompanying drawing (A) repre- 4 sents `a part of the floor of the shop beneath which the machinery for operating the saws is placed, and which is seen in dotted lines, a being the main driving shaft, which carries a pulley (b) that propels it by motion received from steam,water, or other power. On the inner end of the driving shaft (a) a iiXed crank (f) is secured, the Wrist pin of this crank being jointed to a `connecting rod (i), which 1s in turn jointed to ,the saw and plane frame (B). By this arrangement each revolution of `the crank (f) produces a vibration of the connecting rod (i) which communicates to the saw frame (B) a similar motion. This arrangement of the driving machinery which moves i the sawing apparatus proper may be varied so as to suit the peculiar circumstances under which the apparatus may be made'in posts (m) are erected, each standing onlthe `middle of `oneof the our sides square, their sides beingparallel andthe upper-ends of those on `opposite sides being joined ties (n) which 'are' halved together atriglit angles, inthe manner of a cross.` "The oppo` `site posts have parallel slots through them, 4in whichwthe arms ane placed in pairs and inyvhich they are `well fitted, but not sotightly Aa j to prevent i playing freely up `and down.

j Thearms "(0) areheldat ithe"properd fis` tance apart bythe stretching bars (p4 which have inortises `imade through i them Tt at slip over the end of the `arlnsfthe inner sides. olf these bars resting" against 'the sides. of-the 'posts `for the purpose `of guiding the `rairie ingcthe "friction:1 The arms "and" stretching bars are held firmly together by the binding rod g which passes through the arms (0) having a head onts lower end and a screw and nut on its upper end. The pair of arms passing through one pair of posts, cross those whichpass throughthe other, which arrangement admits of both pairs of arms being moved endwise in either direction, for the purpose of causing them to project with their saws and planes more on one side than on 4the other, in order to reach to the middle or outer side of an unusually wide plank. This eXtreme projection on one side of the frame would be `productive of great inconvenience, if (constant, and therefore as soon as the exigency for which they were thus arranged has passed they may be readjusted again so as to project equally on both sides, by merely loosening the nut on 4the upper end of the bolt g, driving in t-he arms and then screwing down the nut a ain. The saws (t) and planes (o) are attac ed to the arms (o)`by means of stirrups (s) and screws between the projecting ends of the arms, and either one saw `and its plane or a gang of both may be secured between any pair of arms, as desired.

For each plane and saw or gang of saws a table (fw) is provided which is surmounted by either a turning carriage or one that l, like the plate of the saw (t), which precedes it,- but instead of saw teeth on`ts edge I pierce its sides with openings (l, 2, 3) and file the'lower edge of thisl opening into the proper form to perform the duty of a com I.. mon plane iron, and set this'ed'ge out" from the side of the plate, lto the proper distance to cut a shaving of the required thickness, the upper plane (1'), which is in the form of a 'gouge forrough or jack-planing, project- V, .ingl'eastand the others (2 and 3), which havestraight edgesyvprojecting alittle far-` ther, yso as to take thin shavings to give a finish to the surface. These planes are arranged to cut on the u stroke and the saw to Ycut on the own stroke7 the two thus counterbalancing Ieach other in such'manner as to equalize the resistance and make the machine work more smoothly and. evenly thanl when usinga saw alone which i works on the down stroke only.

..As'fthej'operation of sawing and planing in :all its variations is well understood by f practical workmen, it is unnecessary here to entery into any details respecting it.

I am aware that saws and planes have been combined so as to work simultaneously,

whereby the strain upon themill is greatly increased and its motions rendered more irregular. I am also aware that a pair of planes have been proposed vone of which cuts on the up and the other on the down stroke of the crank in connection with a saw to cut on the down or'upy stroke, .but I am -not aware that prior to my invention the saws and planes have been arranged to `operate alternately.

I-Iaving thus described my improved ma.- chine for sawing and planing wood into di'erent forms, what I claim therein as new and desire to secure by Letters Patent is- The arrangement of 'one or more saws to cut onlthel down stroke in combination with one or'more planes to cut on the up stroke of the crank substantially as herein set forth; whereby the sawing and planing are performed alternately which tends to equalize 4.

the motion of the machine andv make both instruments work morev smoothly so that it takes very little more power to drive both than it would to drive either.

In testimony whereof I have hereunto sub+ if scribed my name.

Witnesses:

P. H. WATSON, JAMES MEIJER.

DANIEL CLOSE. j

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