US757833A

US757833A - Sculptor's copying-machine.

Info

Publication number: US757833A
Application number: US3726600A
Authority: US
Inventors: Robert T Paine
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-11-21
Filing date: 1900-11-21
Publication date: 1904-04-19
Anticipated expiration: 1921-04-19

Description

No. 757,833. PATENTED APR. 19, 1904. R. T. PAINE.

SGULPTORS COPYING MACHINE.

APPLIGATION rum) NOV. 21, 1900.

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No. 757,833.' PATENTED APR. 19, 1904. R. T. PAINB. SOULPTORS COPYING MACHINE.

APPLIGATION TILED NOV. 21, 1900.

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Patented April 19,1904. 1

PATENT OFFICE.

ROBERT T. PAINE, OF UNION, NEWV JERSEY.

SCULPTORS COPYING-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 757,833, dated April 19, 1904.

Application filed November 21, 1900. Serial No. 37,266. (No model.)

The objects of my invention are, first, to'

provide a very simple machine for use with the largest kind of work and, second, to pro vide a machine useful in producing very delicate work.

Referring to the drawings, Figure 1 is a perspective view of a preferred form of my new machine. Fig. 2 is a bottom view of the driving connections for moving the modelholder and the work-holder in unison. Fig. 3 is a view, partially broken away, of the workholder. .Fig. 4 is a like view of the modelholder; Fig. 5, a like view of the arm-support or pivotal post, showing'manner of attaching same to the upper and lower supports and showing also the manner of pivoting the pointing-arm. Fig. 6 shows such pointingarm.

A indicates a fixed upright, as a tubular post, constituting the arm-support or pivotal post for the pointing-arm.

B indicates an upright for supporting the model, and C indicates the work-support.

The model-holder shown by me consists of two horizontal supports D and D, adjustable along the upright B and adapted to be spaced by a vertical rod E. Clamping devices of any ordinary construction may be used to hold the parts D and D adjustably to the upright B. To prevent the supports from swinging and to guide the same while being shifted, the upright B is provided with a longitudinal groove F, Fig. 4, and the parts D and D are pro vided with tongues fitting said groove.

The base of the model is indicated by H, being shown in dotted lines.

I indicates by dotted lines the base of the work, being secured, in addition to other means, by straps J, as shown dotted.

The model-holder and the work-holder each consist of a frame having a top and bottom support and an upright adapted to be swung about the axes of pivots at the under ends of the upper and lower supports.

Referring to the model-holder, it is provided with upper and lower horizontal supports W W at the ends of the upright B and provided at their inner ends with pivotal rods K and K, which are securely fastened in the upper and lower channel-beams Y and Z. The upper support W is secured to a sprocketwheel N, which moves and is moved by a chain 0, which also engages a second sprocketwheel M. In order to take up the slack of the chain, especially when the distance between the work-holder and the model-holder is increased or diminised, an adjusting device, Fig. 2, is provided. This comprises independently-movable bars P P and clamping means Q, the arrangement being one permitting taking up of slack within wide limits. The second-named sprocket-wheel M drives or is driven by the work-holding frame. Said frame consists of upper and lower horizontal'supports X and X, both being of equal length and longer than the supports W and W of the model-holding frame. The inner ends of the supports X and X are provided with pivotal rods L and L, securely fastened in the upper and lower beams Y and Z. The beams Y and Z are secured in any manner to the floor of a building and to the roof or other horizontal part thereof.

It will be seen that by reason of the combination of parts already described the modelholder and the work-holder will be swung simultaneously about the axes of the pivots This may be done from the work-holder or the model-holder. It will also be seen that the model is adjustable vertically upon the upright B.

I also provide means whereby the distance between the model-holder and the work-holder may be increased or diminished when the enlargement of the work is to be varied. For

'tened to the work-holder.

this purpose either or both of the frames may be movable horizontally. This latter construction I prefer. Each of the horizontal beams Y and Z is provided with openings 00 and 3, similarly arranged in'both beams. Into these openings the axial pins K K and L L are fitted at the distance corresponding to the enlargement required. As before described, the chain is kept taut when the pivots of the work-holder or model-holder are shifted by the slack-adjuster. (Illustrated in Fig. 2.)

The'form of machine illustrated in the drawings is particularly useful in the reproduction in an enlarged form of statuary, especially plaster-work. figure or a portion thereof-is fitted upon the model-holder by any suitable support, and a crate-like body representing a skeleton of the completed work isbuilt up on the stand fas- The stand and the skeleton may be attached to the work-holder in any way. A great number of points-are marked upon the model, these being the principal points of elevation, depression, or change of plane. The plaster applied to the workskeleton is to be built up or shaped in correspondence with the model, and to assure this a pointer having its position controlled by the marked parts of the model is employed, and the plaster applied to the work-skeleton is built or shaped-to the pointer.

Referring to Fig. 6, it will be seen that the form of pointer-arm preferred by me consists of a metallic tube T, provided with metallic cones U, U, and U terminating in pins u a 24 The cones U and U are shown adjustable upon the tube T, being arranged to slide along the same and to be locked by the screws V and V.

In use the pin a acts as the pivot about which the arm T is moved, and the pins u and n are used, respectively, for contact with the model and the work. When combined with the machine, the arm is' arranged to have the pin a seated in a socket of a ring S, fitted upon the upright pivotal post or arm-support A and arranged to be adjusted along the same by any suitable clamping means. The said ring is provided with an inner projection s, fitting a groove a, cut longitudinally in the upright. The described arrangement permits the pivot of the pointer-arm T to be shifted to any desired point along the upright A, and the arrangement of the pin it at an angle with relation to the arm T permits a great range of universal movement of the pointer-arm, al lowing the same to be moved in'straight or curved lines in all directions, whereby the inner recesses of the model may be reached and correspondingly indicated at the work. In order to hold the arm T to its pivot, a hanger s is attached to the cone U and fastened to or suspended from the pivot-ring S. The hanger may be of any suitable form, but I prefer to use a loop of elastic material passed around For this purpose a modelathe ring S and with its ends attachedjto the pointer 14 will stop at the points to which the work is to be built. Thus, as seen in Fig. 1, the pointer a contacts with the elbow of the model and the pointer 10 indicates the point up to which the plaster is to be applied. The machine is also provided with means for supporting the arm, and for this purpose I employ a counterbalance device. The preferred form comprises a bar A, having its center disposed midway of the pointer-arm T and having said arm suspended by means of cords or wires A one at each end of the bar A, the center of which is attached by a cord or wire Bto a lever-bar B suspended from a rope C and provided with a counterbalancing-weight B connected to the outer end of the lever by a rope B The rope C passes through a pulley C and is secured to a cleat 0 attached to the base-beam Z. This permits the lever-bar B to be shifted whenever the ring S is moved and at any distance desired.

I am aware, of course, that it is not new to produce a copying-machine having a modelholder, a work-holder, and tracer and do not claim the same broadly.

What I claim is 1. In a copying-machine, an arm-support,

an adjustable collar thereon provided with a socket, a work-holder, a model-holder, means for adjusting the distance between the holders, and means for swinging both holders, in combination with a freely-movable pointing and indicating arm provided with an offset pivot-pin which is loosely held within the socket of the adjustable collar aforesaid, and with pointing and indicating pins-offset at the same side of the arm as the pivot-pin, sub stantially as described. 7

2. In a copying-machine, an arm-support, an adjustable collar thereon provided with a socket, a work-holder, amodel-holder, means for adjusting the distance between the holders, and means for swinging both holders, in combination with a freely-movable pointing and indicating arm provided With an offset pivot-pin which is loosely held within the socket of the adjustable collar aforesaid, and with pointing and indicating pins connected with said arm, and a counterbalance for said ment with respect to the arm-support, means whereby said arm may be adjusted along the length of the arm-support, and pointing and indicating pins on the arm, substantially as described.

4.. In a copying-machine, an arm-support, a model-holder, a work-holder, means for adjusting the distance between the holders, and means for swinging both holders simultaneously, in combination witha pointing and indicating arm having a pivot-pin, flexible connections between said arm adjacent the pivot-pin and the arm-support, whereby the arm is pivoted so as to have a free rocking and rotative movement with respect to the arm-support, means whereby the arm may be adjusted along the length of the arm-support, and pointing and indicating pins on the arm, substantially as described.

5.- In a copying-machine, a base, a modelsupport and a work-support, means for simultaneously rotating said supports, an upright supported by said base, and an adjustable collar on said upright, in combination with a pointing and indicating arm, a bearing-pin fastened to said arm, and flexible connections fastening said arm to said collar, whereby said bearing-pin is held with its point bearing on said collar, substantially as described.

6. In a copying-machine, a model-support and a work-support, a pointing and indicating arm and a support for said arm, a pivot between said arm and said support, and elastic connections attached to said support and engaging said arm adjacent said pivot, whereby the arm has a free rocking and rotative movement about said support, substantially as described.

7 In a copying-machine, two bearing members, a spacing member between said bearing members, and a pointing and indicating arm pivoted onsaid spacing member, bearings in said bearing members in line with the pivotpoint between said arm and spacing member, and a work-support and a model-support eccentrically mounted in said bearings, substantially as described.

8. In a copying-machine, two bearing members, a vertical spacing member between said bearing members, and a pointing and indicating arm adjustably and flexibly mounted on said spacing member, bearings in said bearing members and in line with the point of contact between said arm and spacing member, and a work-support and a model-support eccentrically mounted in said bearings, substantially as described.

9. In a copying-machine, a model-support, and a work-support, in combination with a pointing and indicating arm, a bearing member attached to said arm, at one side thereof, a support for said arm, and flexible connections between said support and said arm and attached to said arm adjacent the bearing member, whereby the end of the bearing member is held in contact with said support.

ROBERT T. PAINE. Witnesses: HERBER ADAMS,

O. PROOI-IASKA.