US430678A - Carving-machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

P. D. PEGK.

GARVING MACHINE.

Patented June 24, 1890.

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(No Model.) 2 Sheets-Sheet 2.

P. D. Q PEGK.

GARVING MACHINE.

No. 430,678. Y

fimilm DPeck.

q mimaooazy UNITED STATES PATENT OFFICE.

FRANKLIN'D. PEOK, OF GRAND RAPIDS, MICHIGAN.

CIARVINGQMACHINE.

SPECIFICATION forming part of Letters Patent No. 430,678, dated June 24, 1890.

Application filed May 8, 1889. Serial No. 310,070. (No model.)

To ctZZ whom it may concern.-

Be it known that I, FRANKLIN D. PEcK, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Carving-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to the construction of an automatic carving-machine; and it consists in the construction, combination, and arrangement of parts, hereinafter specified,

and pointed out in the claims, reference be-= ing had to the accompanying drawings.

The object of my invention is to produce a machine that will automatically carve geometrical or other figures upon blocks of wood for ornamental purposes, and I accomplish this object by the mechanism herein described and illustrated.

Referring to the drawings, Figure 1 is a side elevation of my automatic carving-machine; Fig. 2, an end elevation of the same; Fig. 3, a vertical section on the line a: 00 of Fig. 2; Fig. at, a plan view of the turntable and ways; Fig. 5, a detail plan view of the ratchetplate. Fig. 6,- a detail plan view of extra trian gular attachment for corner work.

Like letters refer to like parts in each of the several figures.

A represents the main frame of my improved carving-machine, which frame may be of any suitable construction, and B designates the main driving-shaft, which extends transversely of the main frame and has its bearings in boxes secured to the supportinglegs (1. thereof. This shaft is driven byabel connection with some suitable driving-power (not shown,) said belt passing over a pulley B, secured on the end of said shaft, and its motion is transmitted to the other operating parts of the machine through the mechanism hereinafter described. Fixed on this shaft B is a pinion D, the teeth of which intermesh with the teeth of acog-whee1 D, which is mounted on a shaft 0, journaled in bearings above the main driving-shaft and extending longitudinally of the main frame parallel with said driving-shaft. This shaft 0 also carries a clutch-coupling 'E, the movable member of which is provided with a lever F.

G designates a crank-wheel, which is mounted on one of the ends of the shaft 0 and provided with a crank-pin I. This crankpin is adjustable in an elongated slot 17, formed in a pitman H, and serves to connect said crank-wheel and pitman together. This pitman H is pivoted at its lower end on a horizontal shaft h, the bearing of which is in one of the lower corners of the main frame, and its upper end is connected by means of a rod J and wrist-pin K with a carriage 1. This carriage 1 is reciprocated transversely of the main frame on ways 2 by means of said pitman, and the throw of said pit-man and consequent travel of the carriage is determined by the position of the crank-pin I within the slot 17. l

The ways 2 referred to rest on and are secured in any suitable manner to a post 3, which passes through a sleeve M. This post supports the entire superstructure of my improved carving-machine, and it is vertically adjustable by means of a screw 4., which passes through a projection 4, and nut 8, extending inward from the lower end of the post and from said sleeve M, respectively. This sleeve M is formed at its upper end with horizontal projections M, from one of which extends downward another projection m. Passing into the post 3, through this projection m and through a perforation formed in the side of the sleeve M, is a screw 5, by means of which said'post, sleeve, and the entire superstructure of my machine may be adjusted longitudinally of the frame to bring the block being operated on into proper position with respect to the cutter; and to permit such adjustment the wrist-pin K is made in telescopic sections 7t, secured together in any suitable manner; and to permit transverse adjustment of said superstructure the rod J is made in two parts jj, secured together by a bolt 16, one of said parts, asj, having a longitudinal groove, and the other, as j, a tongue fitting in said groove to prevent liability of disengagement of said parts As shown best in Fig. 2, the projections M of the sleeve M are dovetailed, and in the adjustment of the superstructure travel in correspondingly-shaped ways L, secured to the main frame, and it is proper to here remark that the carriage 1 also has dovetail engagement with its ways 2. To permit the vertical adjustment of the post 3 and the mechanism which it supports, said post is formed with elongated slots 20. (Shown best in Fig. 3.) For convenience in operating the screws 4 and 5 they are each provided with a hand-wheel.

O is a spindle carrying'the cutter P. This spindle is provided with a pulley O, and is journaled in the head N, supported by the frame A.

Q designates a turn-table, to which is secured, by means of dogs R, the block being operated on. This turn-table is secured to a ratchet-plate, which turns upon a bolt '7, (shown in Fig. 3,) and is provided with a friction-packing 11, to prevent its turning too easily. This bolt passes through a block 21, which is recessed on its under side, as shown at 22, and rests on the carriage 1, to which it is fixed. Two forms of ratchet-plates are shown. The one T, secured upon the machine, is designed for serpentine work, and has its teeth U projecting at right angles to its body, while that T (shown in detail in Fig. 5) is for ordinary plain work or where right lines only are used, and its teeth Z project outward on a level with said body part, being,

in fact, formed by notching said body part.

The ratchet-plates are secured to the turn-ta ble by screws, bolts, or other suitable means, which pass through the perforations 15, formed in said plate. The transverse movement of the superstructure causes the ratchet-teeth to be engaged successively by a pawl w, which is constructed of springy material to permit it to spring into and out of engagement with said teeth by the reciprocal movement of the su:

per-structure. Said pawl is mounted on a post '0, secured to the transverse way 2, and by its engagement with said ratchet-teeth rotates the turn-table intermittently, bringing the block clamped on said turn-table into position to permit the cutter P to plow a new groove or bead (according to the form of cutter-head used) across the face of the block. In connection with the plate T there is used for serpentine work a plate 6, which is located with in a recess formed in the uppersurface of the carriage l coincident with the recess 22 in the block 21'. The upper surface of this plate 6 is preferably flush with the upper surface of the carriage 1, and its ends are secured to brackets 6*, which embrace the ends of and are secured to the transverse ways 2. This plate has curved guides 15 attached to its upper surface. These guides, receiving between them the teeth or projections U of said plate T, give the same a motion corresponding with their shape.

Referring now to Fig. 4, it will be seen that the dogs R, which act to clamp the block being operated on, are carried by screws S S, which extend at right angles to each other, and that the surfaces of said dogs which contact with the block are notched to form teeth,

the purpose of which construction is obvious.-

'recede by means of a crank 13, located on the end of said screw and provided with a latch 14, which engages a notched wheel 12, as clearly shown in Fig. 2.

For corner work the attachment shown in detail, Fig. 6, is used. This attachment is substantially triangular in shape, andhas at one of its ends a curved portion formed with perforations 10, through which pass the means employed to secure the attachment to the ratchet-plate. The sides 9 of this attachment obviously project above said turn-table, and to each of them is secured a dog R, which acts in conjunction with that on the screw S to clamp the block being carved.

From the foregoing the operation and advantages of my improved carving-machine will be obvious to one skilled in the art to which it appertains.

It will doubtless be found in the practical construction of the machine that many of the details may be advantageously varied, and I therefore do not wish to be understood as limiting myself to the precise construction shown and described.

What I claim, and desire to secure by Letters Patent of the United States, is-

1. In an automatic carving-machine, the combination of a reciprocating turn-table having dogs for clamping the block being operated on, a ratchet-plate beneath said turntable, and a pawl designed to engage the teeth of said ratchet-plate and to turn the table a step at each reciprocation.

2. In an automatic carving-machine, substantially as described, in combination with a suitable frame provided with shafting and pulleys, a pitman pivoted to said frame, and

a carriage mounted on said frame providedv with means of longitudinal and vertical adjustment, substantially as described, and a turn-table mounted on said carriage and provided with means of periodical rotary adjustment, arranged substantially as described.

3. In an automatic carving-machine, substantially as described, the combination, with a suitable frame provided with shafting and pulleys, a pitman pivoted to said frame adapted to operate a carriage, a carriage adapted to traverse said frame transversely and provided with means of longitudinal and vertical adjustment, substantially as described, of a turn-table mounted on said carriage, and a guide-plate having curved ways secured thereon, substantially as described,

IIO

and means of periodical automatic rotary adjustment of said turn-table, arranged substantially as described.

4:. In an automatic carving-machine, sub stantially as described, in combination with a suitable carriage adapted to traverse said frame, substantially as described, and a turntable provided with dogs adapted to secure a block of Wood to said table, substantially as described, the ratchet-plate provided With the pins or teeth, pawl w, and post v, arranged substantially as described, and for the purpose herein set forth.

to said turn-table, substantially as described, and a pawl attached to said transverse Way adapted to engage said ratchet-plate, substantially as described, and for the purposes set forth.

6. The herein-described automatic carvingmachine, consisting of a frame provided with suitable shafting, a crank-wheel having an adjustable pin, a slotted pitman pivoted to said frame and adapted to said crank-wheel, a carriage mounted on said frame, having longitudinal and transverse Ways secured to said frame, a turn-table having dogs adapted to secure a block thereon mounted on said turn-table, a ratchet-plate provided with pins or teeth, a pawl for engaging said pins or teeth of the ratchet-plate, and a guide-plate provided with curved guide -plates, all ar ranged substantially as described, and for the purposes set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

FRANKLIN D. PEOK.

\Vitnesses:

DENNIS L. ROGERS, CHAS. E. WILLIA ms.

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