US242993A - phelps - Google Patents

Description

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A J. B. SHERMAN & L. D, PHELPS.

Lathe for Turning Small Wooden Articles. b No. $429935. Paievnted J4me 14, 1&8].

4 shets-snet J. B. SHERMAN 85 L. D. PHELPS.- Lathe for Turning Small Wooden Articles.

(No Model.)

, No. 242,993. Patented .Iun e 14.1881.

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N. KTERS. Pmlwmhu u mr, Washington. D. c.

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J. B. SHERMAN 82: L. D. PHELPS. Lathe for Turning Small wooden Artioles. No.'242,9 93.

Patented June 14,1881.

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Lathe for Turning Small Wooden Articles.

1;; venjor Patented June 14.1881.

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UNITED STATES PATENT OFFICE.

JAMES B. SHERMAN, OF WATERLOO, AND LOREN D. PHELPS, OF BOLTON TOWNSHIP, COUNTY OF BROME,

QUEBEC, CANADA; SAID SHERMAN ASSIGNOR 'TO COBTEZ C. ELDRIDGE, OF WATERLOO, QUEBEC, CANADA.

LATHE FOR TURNING SMAL'L WOODEN ARTICLES.

SPECIFICATION forming part of Letters Patent No. 242,993, dated June 14, 1881.

Application filed September 16, 1880. (No model.)

To all whom tt may concern:

Be it known that we, JAMES B. SHERMAN, of the village of Waterloo, and LOREN'D. PHELPS, of the township of Bolton, in the 5 county of Brome, and in the Province of Quebec, Canada, have invented certain new and useful Improvements in Lathes forv Turning Small VVoodeu Articles; and we do hereby declarethat the following is a full, clear, and

10 exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

This invention relates to an improved com- I 5 pound lathe for turning clothes-pins, pail-handles, spools, bobbins, and other similar articles, wherein the blank is automatically fed to revolving spindles, then operated upon by cutting-tools, and discharged from the ma- 2o chine by the operation of suitable mechanical devices; and the improvement consists, primarily, in a revolving shaft supported in bear-' ings upon theframe of the machine; and in securing to the said shaft a pair of frames pro- 2 5 vided with hearings in which three sets of spindles are supported and revolved, and also revolved with the said shaft and frames, each of the sets of spindles having an endwise'md dles, adjusting the shafts, and operating the saw, as will behereinafter more fully described and specifically pointed out.

5 In the drawings, Figure 1 represents a front elevation of the lathe; Fig.2, a sectional view through the line w as of Fig. 1; Fig.3, a sectional view through the line yy of Fig. 1 Fig. 4, a sectional view throughthe line a z of Fig.

1. Fig. 5 is a section showing the friction- 5 roller, guide-block frame, and spindle of the revolvinglathe-shaft; Fig. 6, a sectional elevation through the driving-pulleys in theline w w of Fig. 1; Fig. 7, a plan View, showing the saw and feed mechanism secured to the 5 frame, with the other parts of-the machine removed; and Fig. 8, a view in detail of the mechanism for moving the spindles longitudinally.

Referring to the drawings, the letter A in- 6 dicates a power-pulley, mounted 011 a shaft, 60, and having a rigid friction wheel, A, which operates in conjunction with a friction-wheel, B, mounted rigidly on a shaft, B, which extends from one end of the framers to the other. 6

The letter 00 indicates the longitudinal plates of the frame, which frame has cross-bars, in which are hung the short shafts, as shown.

Upon the shaft B are rigidly secured the double three-armed frames F F and S S, in 7 which are freely journaled the ends of two sets of spindles, E and S, arranged in axial line with each other, each of which revolves with the shaft B, and may be revolved in their bearings at a speed greater than thatiof the 73 shaft B, as will hereinafter appear. A third frame, F, is also secured to the shaft B, and

is provided with bearings for blocks E, provided at one end with sockets, into which the ends of the spindles E are secured by means 8 of plates f, that fit in circumferential grooves in said shafts, that serve to hold them in their sockets, but permit them to freely turn therein; and the other ends of said blocks are provided with friction-rollers e, that are held be- 8 tween the cam-surface d of standard D and a cam'plate, D, arranged in proper relation to each other, and both secured to the frame, so that the friction-roller blocks and spindles will be moved longitudinally in their bear- 9( ings, alternately in opposite directions, to

gripe and release the work between the latheclutches or clutch-spindle points 6 s on the ends of the spindles E S.

From the pulley' A is belted a pulleyfln, upon 95 a shaft, M, adj ustably secured within the frame as by being journaled within a socketfln, hav ing a standard or arm, N, which is adjustably held within a cross-bar of the frame 00, and secured by means of a set-screw, a, as shown. The shaftMis further j ournaled within a hanger, 0, by means of a socket, 0, and arm said arm reaching down through a frame-piece, P. The shaft M carries upon its inner end, rigidly, a wheel or pulley, Q, which acts frictionally upon a pulley, q, upon ashaft, Q. This shaft Q is adjustable at one end by means of asocket, 1", having an arm, V, which operates within the frame P, and is held at any point desired by means of a set-screw, 1, while at the other end it is hung within a socket having a similar arm, which is held adjustably in the frame 00 by means of the set-screw r By this means the shafts, with their pulleys and belts, may be adjusted in their frames and with each other to take up lost motion and have greater frictional contact with each other.

Upon the shaft Q are hung two pulleys, the former, Q being belted to the pulleys 6 upon the spindles E, and the latter, Q being belted to similar pulleys, s, secured to the spindles S, and arranged between the three armed frames S.

Upon the outer end of the shaft Q, is secured a pulley, T, which is belted to a smaller pulley, a, hung upon standards 1, rigidly secured to the back plate of the frame :20, and upon a shaft, U, carrying a gang-saw, U.

Upon the shaft B is rigidly secured a gear,

2, which meshes with a pinion, 3, upon a shaft,

4, journaled within the frame, and carrying a disk, 5, having pins 6, and also carrying a pair of three-armed plates, 7.

Passing transversely through the frameplates at is a bar, I, having a shoulder,t', against whichthe pins 6 operate, and to which is secured a rod, 1', which bears against the constant force of the spring 1 upon the opposite side of the frame.

In journals 7c is loosely hung a rock-shaft, K, having a crank-lever, K, which is secured to the rod I, and rigid upon said rock-shaft K is a thrower, L, which operates within .the chute L beneath a hopper, G, and having a way, G, which leads to the arms of the plates 7 7 upon the shaft 4.

Adjustably secured within the frame W is a planing-knife, w, and between said knife and the shaft B is an inclined chute, W into which the work is deposited by the withdrawal of the spindles therefrom when the work hasv been finished. I

The shaft to of the power-pulley transmits a rapid motion to the shaft B by means of the pulleys A and B, as above described, and an intermittent retarded motion by means of an elastic pulley, A upon the shaft a and a pulley,B of peculiar construction, upon the shaft B. The pulley B has formed upon its periphery three projecting ribs or enlargements, b b I), the faces of which are truly turned to be concentric with the shaft B. The projections b are placed at equal distances apart around the pulley, and are arranged relatively to the arms of the plates F F S and to the knife and saw blades, so that the said projections will come in contact with the driving-pulley A to retard the speed of the shaft B and the spindles E S when the said spindles are opposite the cutters and the work isbeing operated upon by them, the pulleys B and A slipping upon each other, when the ridges b and pulley A are'in contact, by reason of the elastic seat a giving to the bearing of the shaft of the pulley A When the projections have lost contact with the pulley A the shaft B will be driven by the pulleys A and B at an accelerated speed, and the spindles E S will be rapidly carried from the saws to the knife, or from one operative portion to another. The triangular arrangement of the spindlesE S with the cutting-knives is such that when the work is being operated upon two of the spindles will be in ahorizontal plane and the third will be immediately or centrally above them, and the belts that communicate motion to their pulleys will be stretched to their greatest tension while the work is being done and when the greatest power is required.

The blocks E have rectangular side; and slide freely in their bearings in plate F, and their rollers e are held in place therein by screw-bolts 0 the heads of which project some distance from the blocks E, and are caught by the cam-blade D, that passes between them and the frame F and draws the rollers, with their blocks and shafts, in toward the plate I), so that they will be acted upon by the cam-face (1, Fig. at, thereof, to gripe and release the work. I

The width of the hopper G and the movement of the lever L are such as to conform to the size of the blanks to be turned, so that when the lever is withdrawn from beneath the hopper a single block only will fall opposite the lateral opening to the guide-plates g g, and when the lever is pushed beneath the hopper the block will be forced up between the spring guide-plates a sufficient distance to be in position to be caught between the arms of the plates 7 7 and placed centrally in the line of rotation of the clutches of spindles E S, to be caught by them as they pass and be carried to the saws.

The saw-arbor U is supported upon arms 1 rigidly secured to the rear portion of the frame, and may be adjusted toward or from the shaft B and its spindles E S, to suit the size of the work, by means of nuts to a upon the screwthreaded shanks of the bearing-blocks a, the said nuts being arranged upon opposite sides of the arms 1. The saw blades may be removed from the arbor by unscrewing the nut a and other intermediate washers of different sizes may be substituted therefor, in a well known manner, to 'suit the outline of the work to be turned.

1n the operation of this invention blocks of proper size are fed into the hopper G, and, reaching the chute L, they are automatically pushed or forced forward to the three-armed pick-up plates 7, and the action of the recip IIO . will be pinched by the holding ends of the lathe-spindles as soon as it leaves the chute L. The block then receives from the pulleys Q Q, of equal size, upon the shaft Q a rotating motion, which carries it to the rotating gang-saws U, which, being operated by the multiplying-pulleys u T, acquire a suflicient force to give the block of unequal circumference an approximately true but rough exterior. It will be understood that the lathe-chucks or holding-points are revolving at a multiplied speed, and that the gang-saws operate and revolve in an opposite direction, which gives a proper speed to the saws upon the surface of the revolving blocks. From the saws the frames F S" and the revolving chucks or holders 8 e carry the blocks thus rounded to the beveled plane W, which plane gives said blocks a smooth exterior, and thereafter, the blocks striking the chute W W they drop through the frame, and may be removed at will.

It will thus be seen that the power derived from the pulleyA by friction and otherwise operates not only the revolving gang-saw U, but that itdrives, by the lever L, the blocks forward to the lathe-holding ends, and that the ends are engaged automaticallyto register perfectly by means ofthe cams D d, and that the pulleys Q Q and pulleys s 0 upon the shafts E S serve to give the block or blank a multiplied revolving motion, and that the same power not only receives the rough blank and feeds it to the chucks, but the mechanism is such that the chucks operate to grasp it, and, after being carried by the revolution of the shaft B, it is rounded by means of the gangsaws and carried to the plane W, where it is smoothed and afterward discharged through the chute W W.

Having described our invention, What We claim, and desire to secure by Letters Patent, 1s-

1. In a compound lathe for turning a numher of articles at the sange time, the combination of the shafts a B, pulleys A B A, the

pulleys A and B being arranged to slip upon each other, and the pulley B provided with projections b, a series of revolving spindles secured to shaft B, and cutters secured to a suitable rest and arranged relatively to the projections b, substantially as and for the purpose described.

r 2. In a lathe, the combination of the frame, the revolving shaft, a series of independently revolving and sliding spindles connected therewith, the vibrating feed-lever connected by intermediate mechanism with the lathe-shaft,

and the pick-up plates connected with said' shaft and arranged to-accurately register with the movements of the revolving spindles and feed-lever, substantially as and for the purposes specified.

3. In a lathe, the combination of the shaft B, with its revolving spindles, the shaft 4, the gear-wheels 2 3, the disk 5, with its projecting pins, the spring-bar I, rock-shaft K, feed-lever L, and feed-hopper, combined and arranged substantially as and for the purpose described. In testimony that we claim the foregoing we have hereunto set our hands and seals this 31st day of August, 1880.

JAMES 'B. SHERMAN. [L. 5.] LOREN D. PHELPS. lL.

Witnesses:

CHARLES S. MARTIN, J os. H. LEFEBRE.

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