US908844A - Carving-machine. - Google Patents

Description

M. A. QUMING. GARVING MACHINE.

Patented Jan. 5, 1909.

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APPLICATION FILED DEC 20, 1907 I h o dll 74/5 1H: NORRIS rzrrns cm, waswnvcrqu, n. c.

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908,844 Patented Jan. 5, 1909.

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, M. A. CUMING. GARVING MACHINE. APPLICATION FILED DBO. 20, 1907.

Patented Jan. 5, 1909.

MARI ANUS CUMING, OF NEW YORK, N. Y.

GARVING-MACHINE.

Specification of Letters Patent.

Patented Jan. 5, 1909.

Application filed December 20, 1907. Serial No. 407,408.

To all whom it may concern:

Be it known that 1, MARI Anus OUMING, a citizen of the United btates, residing at New York, in the county and btate of New York, have invented certain new and useful lmprovements in Carving-Machines, of which the following is a specification.

This invention relates to carving machines, with particular reference to machines for duplicating the configuration of a suitable pattern form. In the application of my invention, I have in mind a machine for carving what are known as hat-blocks, which are generally made of wood and in large quantities, and which are designed to correspond to the peculiar shape of crown or brim determined by style or fashion.

In a co-pending application, filed December 20, 1907, Ser. I lO. 407,441, I show and describe a machine for the purpose above outlined, and the present invention is largely confined to further improvements in this type of machine.

In my co-pending application, aforesaid, I provide a pattern support and a work support which are parts of the same rigid frame, all movements of one being duplicated by the other. I find that such construction is not altogether free from objection, inasmuch as it is difficult to maintain the rigidity of such a structure, the loss of which, even to a slight extent, may impair the accuracy of the work.

The object of the present invention is to cure the above and other minor defects or insufiiciencies, and in general, to increase the efficiency and dependability, and lengthen the useful life of the machine.

My invention will be more readily understood by reference to the accompanying drawings, forming a part of this specification, in which- Figure 1 is a front elevation of a machine embodying my invention; Fig. 2 is a side elevation thereof; Fig. 3 is an enlarged central section of the work support and contiguous parts; Fig.4 is an enlarged central section, taken transversely of Fig. 3, of the pattern support and its contiguous parts, and Figs. 5 and 6 are enlarged sectional details, hereinafter described.

Referring now to the drawings in detail numeral 11 refers to a main supporting frame which is provided with the pairs of crossbraces 12 12 and 13 13. Mounted upon the cross-braces 13 13 are the rails or way-bars 14 14 corresponding with guide-ways in the plate 15 which is mounted and slidable on said rails. This plate 15 is provided with a depending leg or wing 16, which has a thread ed aperture for the reception of a screw 17, the neck 13 of which is journaled in bearings in the cross-bar 19 connected to and supported by the ends of the rails 14 14. The outer end of the screw 17 is provided with a sprocket wheel 20 and the crank handle 21.

Mounted upon the cross-braces 12 12 is the pair of rails or way-bars 22 22, forming slide bearings for the plate 23 which is provided with corresponding guide-ways. This plate 23 is provided with a depending leg orwing 41, corresponding to the leg 16 of the plate 15, through which is threaded a screw 24, corresponding to the screw 17. 'I he screw 24 is simi larly journaled in the cross-bar 25 mounted on the ends of the rails 22 22. At the end of the screw 24, is mounted a sprocket-wheel 26, corresponding in all respects to the sprocketwheel 20 and connected with the latter by means of the chain 27. It will thus be ap parent that the two screws 17 and 24 will operate in unison, and that they are simultaneously rotated by turning the crank lever 21. It will also be seen that rotation of said lever 21 will, through the corresponding rotation of said screws, move said plates 15 and 23 in unison, backward or forward, upon their respective supporting rails.

Lying fiat upon the plate 15 is the large gear 28 provided with the pivot 29 which is centrally journaled in the plate 15. In mesh with this gear is a pinion 29 mounted on the upper end of a short shaft 30 (see dotted lines in Fig. 1) which has hearings in the plate 15 and on the lower end of which is mounted the bevel gear 31. The gear 31 is in mesh with a similar gear 32 on the end of the shaft 33 which has hearings in the depending wing 16 and the outer end of which is provided with the operating crank-lever 34. The upper plate 23 carries in a similar manner the large gear 35, centrally journaled in said plate 23 in a manner hereinafter described. In mesh with the gear 35, is the pinion 36 at the end of the short shaft 37 journaled in the plate 23 and carrying at its lower end the bevel gear 38. In mesh with the gear 38 is the corresponding gear 39 on the shaft 40, journaled in the depending wing 41 of the plate 23. The outer end of the shaft 40 carries the sprocket wheel 41, operated through the chain 42 by means of the corresponding sprocket wheel 43 on the shaft 33. I

It will now be apparent that in addition to being at le to move the plates 15 and 23 forward and backward in unison by means of rotation of the crank lever 21 I am also alle to rotate the gears 28 and 35 in unison, in either direction by means of the crank handle 34.

To provide a suital le pattern support, I emcploy a plate 44, lying'upon the gear 28, an secured thereto for purposes of rotation by means of pins 45 45 projecting through corresponding apertures in said plate 44. To provide a proper support for the work flock, I employ a similar plate 46 on the gear 35, which may be secured to the latter in any desired manner.

Carried ly the main supporting frame, is a frame or cage which comprises the vertical rods 47 47 secured to the upper cross-bar 48 and the lower cross-bar 49. Slide bearings 50 50 are provided on the frame 11 for the vertical rods 47 47, wherely this lastmentioned frame has a vertical movement with respect to the frame 11.

The cross lar 49 is provided with an enlarged portion 51 at the middle thereof to provide bearings for the stem 52 which is ad'- justal ly fixed therein ly means of the lolt 53. This stem 52 has the disk-head 54 at the lower end thereof, which has a dove-tail groove therein to retain and guide the slide 55 secured to or integral with the tracer-arm 56 which is provided with a rounded head 57. The slide 55 has the upturned ears 58 in which is journaled the shaft 59 which at its middle portion is threaded through the diskhead 54. It will be a parent that this con 'struction provides for both vertical and lateral adjustment of the tracer arm 56 which is, however, after such adjustment, rigidly connected to the cross-bar 49. The cross bar 48 is similarly provided with an enlarged middle portion 60 roviding bearings for the end of the rotatal: e shaft 61, which is withheld in said bearings by means of the boltpin 62 riding in the annular groove 63'. The shaft 61 also has bearings 64 and 65 suitably provided in the cross-brace 66 of the main frame 11.- Mounted upon the shaft 61, between said bearings 64 and 65, is the pulley 66 which is provided with a s line 67 slidalle in the spline-way 68 in said sliaft, whereby said pulley and said shaft are connected together for purposes of rotation while said shaft has limited vertical movement independent of said pulley. The lower end of the shaft 61 is provided with a common form of bit-clamp 69, by which the cutting or carving tool 70 is secured.

The above described construction is such that the cutting tool 70 and the tracer-head 57 are correspondingly positioned with respect to the plates 46 and 44, respectively, and such corresponding positional relation is maintained irrespective of the movements of the supporting plates and of the frame of which said cutting tool and tracer-head form parts.

In the lower part of the frame 11, is suitably journaled a shaft 71 carrying the two fixed pulleys 72 and 73. The pulley 72 is designed to be driven from any suitable source of power and drives the pulley 73, around which extends the belt 74 which operates through the interposition of the idlers 75 on the brackets 76 to rotate the pulley 66 on the shaft 61.

To facilitate movement and control of the vertically sliding frame, I provide a lever 77 pivoted to the frame 11 at 78 and connected by means of a link 79 with a bracket 80 suitably secured to the cross-bar 49. It will be apparent that by operating the lever 77, the

bar 49 may be raised and lowered and therewith, as a whole, the frame of which it forms a part. To counterbalance the weight of the frame and thereby facilitate manipulation thereof, I suitably pivot to the top cross-bar 48 a lever 81 fulcrumed upon the. link 82, which is suitably pivoted to the frame 11, and carrying, removably and adjustably mounted at its end, the weights 83.

It will now be apparent that I have provided a pair of supports which may be rotated and moved bodily forward and backward in unison. In cooperative positional relation to one of said supports is a tracer, and correspondingly positioned with respect to the other support is a carving tool, said tracer and said carving tool having identical movements which at alltimes preserve the proportions of their positional relations to the respective supports with which they coact. Therefore, if I rigidly mount upon the lower support 44 a suitably formed pattern block (such as the block 84) the shape of which it is desired to reproduce, and, similarly or otherwise, rigidly mount upon the plate 46 a block to be carved (such as the block 85), both blocks being correspondingly positioned with respect to their supporting plates, I may, through operation of the carving tool 70, and my ability through relative movements to bring the tracer-head 57 into contact with every point on the upper surface of theformed pattern block 84, carve the block 85 to a configuration which is idenject the pins 45 which extend throughthe plate 44. To rigidly Withstand the forces of the cutting operation, I prefer that the work block 85 should be more rigidly connected to its supporting plate 46. I therefore provide the gear 35 with a central aperture which contains the collar 86, within which is the I ate positional relationship between said suphollow shaft 87 internally threaded for the i ports and said tracer an said carving tool,

reception of the screw 88 which projects [respectively, and means for operating said therethrough and is provided at its lower end with a hand wheel 89 or other rotating device. At the upper end of the screw 88, is a nut 90 to which are pivoted the arms 91 91 having claws 92 92 at the end thereof. A spring 93 is suitably interposed between said arms and tends to yieldingly spread them apart. The work block is provided with a central bore 94, slightly less in diameter than the normal distance between the claws 92 92, whereby, when said block is placed upon the plate 46, said arms 91 91 will be forced by the sides of the bore 94 toward each other and against the action of the spring 93, which causes the claws 92 92 to grip or bite said side walls. It will now be apparent that by rotation of the hand wheel 89, which operates to turn the screw 88, the nut 90 will be drawn downward, and the claws 92 92 having engaged the side walls of the bore 94, the block 85 will thereby be drawn down against the plate 46 and firmly and rigidly secured thereto.

Ahook 95 pivoted to the cross-brace 15 and engaging a suitable catch on the lower cross-bar 19, serves to suspend the vertical frame when the machine is not in use.

In my co-pending application aforesaid, the pattern support and the work support formed parts of the same rigid frame. Ihis construction necessitated the employnent of vertical rods for the transmission of power in a horizontal direction from the lower support to the upper support. Great nicety of adjustment being required, for purposes of faithful duplication, the herein-described means for insuring identically the same movements of both supports is considered a distinct improvement over the other construction referred to.

I claim as my invention and desire to se cure by Letters Patent:

1. In a machine of the character described, the comblnation of a pattern support and a work support, each being provided with individual means for effecting its rotation and its lineal bodily movement but having actuating means common to both of said supports, a pattern tracer and a carving tool, each being part of the same rigid frame which has movement in a direction to preserve a proportioncarving tool.

2. In a machine of the character described, the combination of a pattern support and a work support, each bein provided with individual means for effecting its rotation and its lineal bodily movement and having actuating means common to both of said supports, a pattern tracer and a carving tool, said tracer being adapted to co-act with one of said supports and said carving tool to coact with the other of said supports, means for varying the positional relation between said tracer and its co-acting support and thereby proportionately varying the positional relationship between said carving tool and its support, and means for operating said carving tools.

3. In a machine of the character described, the combination of a pattern support and a work support, each being provided with individual means for effecting its rotation and its lineal bodily movement in a horizontal plane and having actuating means common to both of said supports, a pattern tracer and a carving tool forming parts of the same rigid frame which has movement in a vertical plane, said tracer being adapted to co-act with one of said supports and said carving tool to co-act with the other of said supports, and means for operating said carving tool.

4. In a machine of the character described, the combination of a pattern support and a work support, each being provided with individual means for effecting its rotation and its lineal bodily movement in a horizontal plane and having actuating means common to both of said supports, a pattern tracer and a carving tool forming parts of the same rigid frame which has movement in a vertical plane, said tracer being adapted to co-act with one of said supports and said carving tool to co-act with the other of said supports, means for adjusting said tracer, and means for operating said carving tool.

In testimony of the foregoing, I have hereunto set my hand in the presence of two witnesses.

MARI ANUS CUMING. Wl'itnesses L. M. PHILLIPS, P. F. SoNNEK.

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