US103021A - Improved shaping-machine - Google Patents

Description

:aan an am are AALEEED E; concu, or WORCESTER, MASSACHUSETTS.

Letters .Patent No. 103,021, dated May 17, `1870.

IMPRov'En sHAPING-MAOHINE.

i The Schedulerefered'to in these' Letters Parent: and making part of the same To all whom -it 'may concern A v e itknown. that LAILRED B. COUcrr, of the city i .alud-county of Worcester and'fCommonwealth of Massachusetts, Vhave invented certain new and useful Improvements in Shaping-Machines; and I do hereby fdeclare 'that the following is a full, clear, and exact of the same, lon line A Bg. 1.

. ,-'lo enable', those skilled'V in the artv to which my inf vention belongs to make and use the same, I will pro ceed to describeit more in detail;`

' My improvement relates to that class `of machines used for planing metals, known as shaping-machines, in which the cutting-tool is'earried at VJthe extremity of 'a sliding bar that receives a reeiprocatinghorizontal, motion through acank `and connecting-rod.

" 'As shaping-machines have hitherto been constructed., the direction-of motion of the sliding bar which carries the cutting-tool has been `fixed, and incapable of being varied from that oi' a line at rightanglesfrom the bed or frame of the machine.

, The object of my improvement is to provide a .means by which the guides .which carry the sliding bar may be turned in any direction around an axis on a horizontal plane,` without impairing the rigidity of' `the machine or interfering with any of its other Inovements.

y `In the drawingsi Y The part marked A is the hed, and B theshoe o r sadd1e,itted to slide upon the bed Ain the usual manner;

Upon the shoe B i s arranged the guide C, in which moves the sliding bar D, that carries the cutting-tool .\E, the latter being secured to the headfa of the sliding barD in the' ordinary manner, with the hingejoint b. i

The guide Glis pl'ovidedwith a circular disk, O1, at

i its lower part, `which restsupon the saddleli, and a projection, C, is cast nponthe under side of said disk. C1, at its central part, which is accurately turned and l fitted to a hole truly bored inthe body of the saddle B, thereby forming a center or pintle upon which the guide-piece G may he turned as desired, to change the direction of the slidebar D and cutting-tool E.

' The guide Goan be-secured in any adjusted positionfby means'of bolts F, the" heads of which are' arranged in a iianged annular groove, G, formed inthe saddle vB, `while their points project upward through the disk Gl, and are provided with nuts, as shown in the drawings. Thev screw and its attachments, by which the 4saddle Bv is moved to different positions Vupon the bed A, are arranged in the ordinary manner, and they, being familiar to all machinists, need not be further described. -v

A shaft, H, having 'its bearings in the ends of the bed-frame, and receiving motion' from any suitablepower, drives, by means ot' a spline, a bevel-pinion,-I,

the hub 'of which is prolonged andsupported in a bearing, which projects downward from the underside of the saddle B'. Y

A iange, e, is formed at the hack end of the hub, so `that,.when the saddle B is moved to the right or left, the pinion I iscaused to'slide along the shaft H, `'thereby retaining said pinion at all times in correct relative position in regard tothe beveled gear K, into `which the pinion I meshes.

' The bevel-gear K is secured to the lower end of a short vertical shaft, L,Whieh is-arrangedthrough the center of lthe projection C2 and disk G1, and is provided at its upper end with a beveledl pinion, M, which latter meshes into .and operates a beveled gear, N, at

'the side ofthe guide-piece O. An opening is formed in the guide-piece G to allow sufficient space for the pinion M.

A bushing, O, is arranged throughthe vertical part ot' the guide-piece C, and rigidly secured thereto by its flange, n', while a projecting portion of said, bushing is tittedto form a bearing for the gear N, as indicated iu fig. 3.

A crank-shaft, P, is arranged through and has its bearing in the bushing-0, but not concentric to the gear N,-as will be seen by referring to the drawings, the center of .the crank-shaft P being placed some what back from the center of the' gearN.

which the crank Q is connected by a rod, R.

`A slot, S, is formed inthe slide-bar D, through which Ithe crank-shaft P passes, as indicated in figs. 2 and 3, thereby bringing the center of the crank in line with the direction of motion ofthe slide-bar D.

The opposite end of thecrank-shaft P is proyitled with a disk, T, .in which is formed' a radial slot, `as indicated by dotted lines. The disk 'l is secured firmly to the shaft P, just outside of the gear N, and a pin, V, projecting from 'the side of gear N, works in said radial slot,aud operates the disk'l and eranklshaft I when the machine is in motion.

It will be seen that, when the gear N revolves, car- Tying with it the diskv T, 4the dist-ance of the pin. Vf from the center of the crank-shaft P constantly vai ries throughout Vthe revolution, and the adjustment of theparts is such that the sliding bar D will perform its outward or cutting movement while the pin V is at its greatest distance from the center of the crankshaft P, whereby the cutting movement will be made with greater power than the backward or return movement, while t-he latter will be performed with greater velocity, thereby reducing the times in which the ma- `vehine is not performing actual service.

From the foregoing description it will be observed that the power communicated to the shaft H will be transmitted to the gear N and parts connected therewith, independently of the position of the saddlek B upon the hed A, or of the angular position of the guide-piece G.

The usual position of the axisA around which the' guide-piece C revolves is vertical, but it may be found convenient for some purposes to construct the machines with the axis in a horizontal or oblique position. f

It will be apparent to those skilled in the art that by my improved shaping-machine any piece of metal may be grooved or tongued at various angles, or have its edges planed tapering or oblique, with far great-er facility and correctness than cau be obtained by taking up'and refxing the work for each different angle,

while, at the same time, my machine is capable of performing work with accuracy and-'precision which is construction.

chines,

and desire to secure by Letters Patent, is-

1. The combination with guide-piece 001 C2, sading-rod R, substantially as and for the purposes ldescribed.

saddle B, sliding bar D, crank Q, and 'connecting-rod R, of the beveled gears I K M N, as shown and described.

3. The combination with guide-piece C Cl IG? and gears I K M N, of the radially-slotted disk T and eccentrically-arranged crank-shaft P Q, substantially as and for the purposes set forth.

' ALFRED B. COUGH.-

Witnesses: Taos. H. DODGE, Gross. H. BURLEIGH.

wholly inaccessible to a shapingmachine of ordinary Having described my improvement in shaping-ma- What I claim therein as new Vand of my invention,

dle B, and sliding bar D, of the crank Q and connect.y

2. The combination with the guide-piece C CCz,

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