US1368712A

US1368712A - Wood-carving machine

Info

Publication number: US1368712A
Application number: US230210A
Authority: US
Inventors: Galbraith John
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-04-23
Filing date: 1918-04-23
Publication date: 1921-02-15
Anticipated expiration: 1938-02-15

Description

l. GLBRAITH.

WOOD CARVING MACHINE. APPLICATION FILED APR. 23, 1918.

15368,?12, Patented Feb; l5, 192i.

4 SHEETS-SHEET lf5 /9 7 /6 g 6 7 6 20 5 I /0 5 E E@ La@ oo 2 I ge' 25 35 I I :l l 6/ -59 1. GALBRAITH WOOD CARVING MACHINE.

APPlICATION FILED APR. 23. i918.

Patented Feb. 15, 1921.

l. GALBRAITH. woon cAIIvIIIIG MACHINE. APPLICATION FILED APR.2s. Ism.

mma Feb. 15,1921.'

4 SHEETS-SHEET 3.

J. GALBHAH. WOOD CARVING MACHINE. APPUCATIONHLED APR. 2s. 191e.

Patented Feb. 15, .wf/Jl.

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machine embodying my Fig. 1,

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WOOD-CABVING MACHINE.

recente.

To all whom t may concern.'

Be it known that l, JOHN GALBRAITH, a citi-Zen of the United States, resident of Swatara, county of Ai'tkin, State of Minnesota, have invented certain new and useful improvements in `ld/vood-Caiwing lllachines, Vof which the following is a specification.

rlhe 'object of my invention is to provide a machine of such construction that universal movement of the tool spindles will be permitted and power transmitted to them with comparatively little loss and with a mimmum of belts.

A further object is to pro-vide a machine in which the parts are all nicelyl balanced, are capable of adjustment on the table for different classes ofwork and can be easily and quickly manipulated.

T he invention consists generally in various constructions and combinations, all as hereinafter ydescribed and particularly pointed out in the claims. V

1n the `accompanying drawings forming part of this specification,

Figure 1 is a plan view of a wood carving invention,

Fig. 2 is a side elevation of the machine, a ortion of the frame being broken away,

' iig. 3 is a sectional view on the line 3-3 of Fig. 4 is a detail view, showing the mechanism through the operation of which universal movement of the tool carrying spindles is permitted,

Fig. is a detail view, showing the oscillating hanger through which power is transmitted to the spindles, Y

Fig. 6 is a detail view, showing an electric motor connected to the belt sheave for drivinor the spindles. V

n the drawing, 2 represents the frame of the machine. 3 is a table having a series of slots 4 therein and -mounted on the top of the frame to form a bed for the work. This, table is of ordinary construction, but

l prefer to make it stationary on the frame instead of movable, as usual in machines of this type.

Y On each side of the machine frame I provide brackets 5 and rods 6 arranged in parallel relation and secured in said brackets, and

above said rods and parallel therewith are screw shafts 7, also secured in said brackets. A carrier Shas anti-friction wheels 9 to rest and roll on the rod 6 and also has sleeves walls of the pipe Y on'the shaft 30 and provided with counter- Y Specication of Letters Patent. Patented Egt), 15, 1%21. Application filed April 23, 1918. Serial No. 230,210.

screw shaft 7 over the table.

Upon the carriage 8 l' provide brackets and 16 having bearings for upright shafts 17. The upper ends of these shafts have beveled gears 18 meshing with pinions 19 on a cross shaft 20 and one end of said shaft 2O has an operating wheel 21 by means of which Ythe said upright shafts may be revolved. The lower portion of these upright shafts have threads formed' thereon and brackets 22 have arms 23 and 24 thereon, the former being interiorly threaded to engage the threads of the shaft 17 while the latter slide freely on the upper portions of Said shafts. llVhen, therefore, the shafts 17 are revolved, the brackets 22 will be raisedor lowered, as desired.

At the inner ends of the brackets 22 I provide members 25, each in the form of a double T provided withl pairs of arms 26 and 27, the arms of each pair being in parallel relation and the arms 26 having pivot pins 28 mounted therein between which the inner ends of the brackets 22 are inserted to form bearings for said pins.V rFhe arms 27 have similar pivot pins for blocks 28 which are inserted between them and-centrallj,7 pivoted at 29 to the walls of a pipe 30, which extends transversely of the machine between the end rails of the carriage. This pipe may, therefore, oscillate longitudinally or transversely of the machine on the vertical pivots 28 and also has a vertical movement on the horizontal pivots 29. A shaft 30 is mounted in bearings on the carriage transversely of the machine and has depending arms 31 pivotally connected by links .32 with the lower 3() and rods 33 are mounted balance weights 34:. Brackets 35 have loop portions 36 to receive the ends of the pipe 30 and bearings 37 are mounted on said pipe for pivot pins 38 carried by the loops -36 and' forming vertical pivots on which the said brackets may oscillate transversely of the machine.

At the forward ends V of the brackets 35 is a cross bar 39 in which a series of tool-carrying spindles 40 are mounted, said bar 39 j eners 66 are mounted n gaging the belts 49.

- tending its shaft 68 Vends forengagement of a tool or loosening purposes. These.

are counter-balanced by means of weights. carried by the 41 mounted on f rods 41 looped portion 36 of the brackets 35 on the lopposite side of the pivots from the tool spindles. Y

On the underside of the pipe 3U at each end thereof I provide sheaves 42 having belt surfaces 48 and 44 separated by a rib 45 and also having preferably on the same hub a smaller belt surface 46. These sheaves are securedl to the underside of the pipe 30 by means of studs 47 having threaded ends to enter threaded sockets in pins 48 which are mounted in the pipe 30 and have projecting therewith for tightening' sheaves 42 turn freely on the studs 47 for the transmission of power to the tool spindles.

For driving the sheaves 42 I provide belts 49 for the pulleys 46 extending tovsheaves 50 having running connections with the sheaves Von the surfaces 46 andv extending to pulleys 50 carried by rods 51 which are pivoted at 52 in brackets 53. Pulleys 54 are supported by the brackets 53 and have belts 56 connecting them with the pulleys 50andbelts 57 connecting the pulleys 54 with a suitable source of motive power. The lower ends of the rods 51 are provided with rods 58 pivotally supported thereon and pivoted at 59 to pins 60 mounted in the walls .of the pipe 30. These pivotal connections allow the pipe to be voscillated forl ward and backward or up and down to follow the different positions ofthe tool spindles.

Between the sheaves 42 and the pulleys on the tool spindles I provide driving belts 61, these belts having running connectionsA with the'pulleys 42 on the surfaces 43 vand 44, so that a single belt carried back and forth will operate two vspindles which are preferably arranged as shown in the plan view, two at each end of the bar 39, with a master or tracing' tool 62 in the center of the bar between them. 1

Suitable belt tightening devices 65,are provided for the-belts 6l and similar tighton the rods 58Vfor en- In Fig. 6 I have shown a modication which consists in mounting an electric motor- 67 on the top of the pipeBO and eX- down through the pipe and mounting the pulley 42 on the lower end of this shaft and then belting direct from this pulley in the manner shown to the tool spindles. In this case there would, of course, bean electric motor at each end of the pipe'30. Y l The o-peration of the machine is as fol- .lngbearings in' of tool --carrying spindles supported by said lows: The slotted table on which tliework 1s placed isstationarv. The carriage supis adjustedV porting the toolY spindle carrier forward.k or backward over the table for the desired operating position and the carrier through the medium of its pivotal supports on the carriage will be free to swing forwardY or backwardV andV laterally tov position the tools with respect to the work. The depending hanger through which power is transmitted will follow the carriage back and forth so that regardless of the position of the carriage over the table, the belts will transmit Apower to the tool carrying' spindles. The carriage isV counter-balanced so that it can be easilymovedback and forth or from side to side,.according tothe position or" the workon the table.) Y

I claim as my invention:

1. lIhe combination, with a frame and a table mounted thereon, of la carriagemounted for forward Vand backward .--mov'ement over said table, a carrier, upright shafts whereon said carrier is vertically adjustable, brackets having vertical pivots on said carrier, tool holders mounted in said brackets and means for operating said tool holders.

2. A wood carving machine comprising a frame, astationary table mounted thereon, a carriage mounted for Vmovement back and forth over said table, a -transversemeinber mounted for horizontal oscillation and :vertical adjustment in said carriage, a tool carrier supported by said member and mounted for universal movement, and means for operating said tool carrier. i i

3. A wood carving machine comprising a frame, a stationary table mounted therein,

, a carriage mounted for movement forward and back over said table, a transverse membermounted for horizontal oscillation and vertical adjustment insaid carriage, a carrier mounted in said memberfor universal movement over said table,A and having a plurality of tool-carrying spindlesLand an oscillatin'g hanger having pivotal connections with said spindles.

ioo

4. The combination,with a frame, of a stationary table mountedtherein, aV carriage mounted formovement-forward and back over said table, brackets mountedinsaid carriage for horizontal oscillation and vertical adjustment, 'a transverse member havsaid brackets, la plurality transverse member, pulleys mounted on said member and driving belts connecting said pulleys with asource 'of-,motive power and with pulleys on said spindles.` A

5. The' combination, table mounted thereon,

ofa carriage mounted lfor forward and backwardv movement Vover said table, uprightl spindles journaled in said carriage and having threaded portions, vbrackets mounted forl oscillation on with a frame and laV Asaid upright spindles and engaging the threaded portions thereof for vertical' adjustment thereon, means for revolving said spindles, a carrier supported by. said bracket for universal movement and having a plurality of tool holders,'j andmeans for operating said tool holders. V- f i 6. The'combination," with a frame, of a table mounted therein, a carriage'mounted for lforward and .backwards lmovement over said table, brackets carried'by said carriage for vhorizontal oscillation, 'double VT-heads having vertical pivots on vsaid brackets, blocks having vertical pivots on' said heads, a'floating cross member having horizontal pivots von said blocks, a vcounter-balancing means for said floating cross member, brackets having vertical pivdtson said floating cross member and projecting forwardly over said table and having a plurality of tool holders, counter-balancing means for said tool holder brackets, and means for driving said tool holders. Y Y

7. 'Ihe combinatiornwith a'frame, of'a table mounted thereon', va carriage mounted for forward and backward movement over said table, a oating transverse member pivotally supported by said carriage, brackets having loop portions encircling said member and having vertical pivots thereon, said brackets projecting forwardly over said table and provided with a plurality of tool holders, a counter-balancing means for said brackets projecting rearwardly of said floating member, and means for driving said tool holders.

8. In a wood carving machine, the combination, with a transverse floating mem-` ber having horizontal and Vvertical pivots and a counter-balancing means therefor, of brackets having vertical pivots on said floating member and projecting forwardly therefro-m and provided with a plurality of tool spindles, a counter balancing means for said brackets, pulleysmounted on said floating member, an oscillating hanger and a driven pulley supported therein and having belt connections with the pulleys of said floating member, and driving belts extending from the pulleys of said floating member to said tool spindles.

9. In a wood carving machine, the Ycombination, with a transverse member having horizontal supporting pivots and counter balances for said member, brackets having vertical pivots on said member and projecting forwardly therefrom and provided with tool carrying spindles arranged in pairs, pulleys supported by said member and having double faces and single belts connecting the double faces of said belts with the pairs respectively of said spindles, and means for driving said pulleys. y

l0. In a wood carving machine, the com- Y bination, with brackets mounted to oscillate in a horizontal plane, double T-heads having vertical pivots on said brackets, blocks having vertical pivots on lsaid T-heads, a transverselyV arranged floating member having horizontal pivots on said blocks, and counter-balances for said member, and a carriage having'tool spindles mounted therein and *providedv withl vertical pivots on said floating member, counter-balances for said carriage, and means for driving said spindles.

1l. rThe combination, witha frame, of a tableimounted thereon, a carriage mounted for forward 'and backward movement on said table, a transverse member having horizontal and vertical pivots on "said carriage for vertical and horizontal oscillation thereon, brackets having vertical pivots on said member and projecting over said table and provided with tool holders, and counterbalancing `means for said brackets and means for driving said tool holders.

12. The combination, with a frame, of a table mounted thereon, a carriage mounted for forward and backward movement on said table, a transverse member having vertical and horizontal pivotal supports in said carriage, brackets mounted for horizontal oscillation on said member and provided with tool holders, a counter-balancing means for said brackets on the opposite side of said member and means for driving said tool holders.

13. The combination, with a frame, of a table mounted thereon, a carriage mounted for forward and backward vmovement on said table, brackets mounted in said carriage for horizontal oscillation, heads having vertical pivots on said brackets, a pivoted crossmember supported by said heads for vertical oscillation, a counter-balancing means for said member, a tool holder, brackets mounted for horizontal oscillation on said member and projecting forwardly over said table, and means for driving said tool holders.

14. In a wood carving machine, the combination with a transverse member having horizontal and vertical supporting pivots and counter-balances for said member, brackets pivoted on said member and provided with tool carrying spindles, pulleys supported by said member, belts connecting said pulleys with said spindles respectively, an oscillating hanger, and a driven pulley mounted therein and having belt connections with the pulleys of said transverse member.

15. The combination, with a frame, of a table mounted therein` a carriage mounted for forward and backward movement on said table, a member transversely supported in said carriage and mounted to oscillate horizontally and vertically therein, brackets mounted for oscillation with said mem- Viso l said ,said tool holders.

. with tool holders,

ber and independently thereof and provided with tool holders, 'A and counter-balancing means for said brackets, and means for driving said tool holders. v

' 16. The combination, with aA frame, of a table mounted therein, a carriage mounted for forward and backward movement Von table, a member transversely supported in said carriage and mounted to osci'llate horizontally and vertically therein, brackets mounted for oscillation with said member and independently thereof and provided and counter-balancing means 'for said brackets, an oscillating hanger, a driven pulley mounted therein and driving connection between said pulley and 17. The combination, in a wood carving machine with a transversely arranged oating member mounted to oscillate horizonf tally and vertically and a counter-balancing means therefor, of brackets pivotally sup# ported on said member and provided with a plurality of tool holders arranged in pairs, pulleys supported by said member and having double faces and belts connecting the hanger havingv double faces ofsaid pulleyswith the pairs respectively of said spindles`,;andv means for drivinfrsaid pulleys. f y

' y 18..V wood carving Vmachine comprising a frame,a stationary table mounted therein, Y,

a carriage mounted for movement; forward and back over saidjtable,1`a member mounted in said carriage for' universal 'rmovement over said table, a 'tool carriermounted for oscillation on said memberwand vhavinga 1 tool-carrying spindle, ing said spindle;

19. A wood 'carving'.machinejcomprising' a frame, a stationary table mounted therein, a carriage mounted for and back over'said table,a member mounted in said carriage for universal` movement over said table, a tool carriermounted for oscillationron said member andhaving a tool-carrying spindle,` and an oscillating spindle. l 'Y In witness whereof, Iihave hereunto'set my hand this 8th day ofApril, 1918.. v

JOHN GALBRAirm and means for drivmovement forward belt connections-with lsaid