US834346A - Carving-machine. - Google Patents

Description

PATLNTLD 001230, 1906. ms. VAN ACKER.

CARVING MACHINE. APPLICATION FILED. JULY 7, '1905,

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No. 834,346. PTBNTBD 00T, 3o, 190s.

C. S; VAN AGKER.

CARVING MACHINE. A rLIcATIoN FILED JULY 1, 1905.

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UNITED STATES PATENT oEEroE.l

CHARLES sMiTzvAN ACKEE, lor EEcLoo, BELGIUM.

To a/ZZ ich/0m,y it may concern,..- Be it known that I, CHARLES SMITz VAN ACKEE, sculptor, a subject of the Belgian King, residing at Eecloo, Belgium, have 1nventednew 'and useful `Improvements in Carving-Machines; and I do hereby declare the following to be a full, clear, and exact descriptionof the same. y f

My presentinvention relates to carvingmachines, theobject being to provide an improved machine of this class for economically carving ornaments and statues of any desired design in wood, marble, or other material and also copying patterns of any desired kind, the improved machine being capable of producing' in one operation any number of copies of the pattern. i This invention comprises a universallymovable support adapted to carry a plurality of forming-tools and a tracer in a manner to ermit the latter to be guided to trace the ines of a pattern or model and reproduce the same-,through the forming-tools upon the material to be modeled, the said support being mounted upon an articulated or jointed. frameworkin a manner to permit universal movement of the support, and thereby cause movement of each of the forming-tools in exact correspondence to the movement .of the tracer.

The invention nino-hanf@ its nbjnnn the provision of improved tool-holders for rotatively mounting the tools on the support in a4 manner to permit vertical adjustment of said tools and maintain the same in operative connection with a driving-shaft, there being also providedimproved means for adjusting .the tracer uponthe support.

In the drawings, Figure tion of the machine embodying the main features of my invention. Fig. 2- is a side elevation, and Fig. 3 is a plan view, thereof. Figs.

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4 and 5 are tail views of the improved toolholders. 3 Figs. 6 and 7 are end and front elevations, respectively, of vthe preferred form of driving means. l

The machine is mounted upon a supporting-frame 1, provided with vertically-extending pillars2, which directly carry the operatmechanism, a'nd a bed-plate 35 on which the pattern and material to be carved are mounted. Bearings 2a carry vertically-disposed pins or spindles 3, which extend through bearing-washers 3a, the latter being connected labove and below by rods 5. As shown. said rods extend through the spindles pivotally mounted on-the spindle 6. outer ends of said frames 7 carry spindles 9,

1 is a front eleva- Patent-d o ctl eo, 1906.

3 and serve to prevent rotation of the latter. I

- Horizontal supporting-arms 48L are mounted on spindles 3, the upper and lower arms'4a at each side of themachine being connected at their free ends by vertical pins or spindles 6. Said arms 4a are rigidly connected by struts 4b, forming at each side ofthe machine two horizontal swinging and carrying frames 4. There are also provided two similar horizontal swingingl and carrying frames 7, composed 4of upper andlower members 7a; connected by struts 7b, which frames lage e on which are pivotally mounted horizontallyswinging framemembers 10, the latter being pivotally yconnected to vertical supportingspindles 11, on which horizontal ro s or bars 12 are secured. In order to effect movement of the swinging frames 4 and 7in unison, the latter are connected by rods 5a and 8,-

= the latter extendingthrough the spindles 6 and'9. The upper horizontal rod 12 is provided on its outer opposite ends with ktrunnions 12a, on which vertically-swingingsuporting-links 13 are pivotally mounted, the said links being connected at their other ends with arms 14a, extending upwardly and rigidly secured to the tool-support 14. The

` tool-support 14 is connected at its lower end with the ins 11 by means of links 15. Each' vof the lin s 13 is provided with a plurality of `holes adapted to receive the trunnions 12a and like trunnions formed on the supportingarm 14a which construction permits the toolsupport 14 to be inclined to any desired osition from the vertical in either direction fiom the position shown in Fig. 2. w

From the foregoing it will be seenl'that free movement of the tool-support is permitted in a vertical plane, the swinging barsv 1() permitting movement endwise of the -machine in a horizontal plane within the radii formed by the spindles 9 as the centers. If the work requiresl a longitudinal movement of the. support 14greater thanthe aims-10 aiford, such movement is permitted` by the swinging frame members 4 and 7, which also permit of the rearward movement of the toolsu port 1K4 in a direction toward the pillars- 2, as will be "clearly seen by reference to Fig. 3 ofthe drawings. l

In order to normally maintain the toolsupport in the vertical lane in which it isi adjusted and to permit t e same to be freely swung in such plane without requiring the IOO IIO

operator to` lift the full weight of the toolbase, the latter is counterbalanced inthe following manner: A supporting-plate 34 is mounted at its upper and lower ends .and centrally upon the bars 12, said plate carrying horizontal pivot-pins 32, on which swinging. levers 31 are pivotally mounted. Each of said levers carries at its outer end an .adjustable weight 30 and is provided on its opposite end with a .segmental sheave `over which ropes or Vchains 33are trained. VSaid ropes .are `secured, to the levers ,31 at one end and atfitheir opposite ends to the tool-.suppor-tw14.

It will be obvious-'from the foregoing that the weights may .be adjusted toward Aa-nd away. from-the ivots 32 ina manner to accurately counter .alance -thetool-support, the latter being provided with handles 42, adapted. tosbe graspedbytihe operator during the carving operation.

A driving-shaft'18 is mounted Lon the toolbase "in bearings 17, projecting vupward-ly therefrom, said shaft carrying a plurality of longitudinally adjustable beveled `frictionwheels 1.9. As shown, the-tool-base carries four carving ori-forming tools 27, [although thenumber may be either increased -or reduced-by :providing a tool-support oflfthe required length. :Each ofsaid Ktools @is mounted in holders which permit of -,adjustment and anchorage ,of the:,ftool in a-vertical plane, -so that 'the latternmay be continuously rotated in ,its adjusted position, the said holders ,ibeingshown in detail in Figs. 4 land 5, to which reference will-now be made. .Said holders comprise `outer clamping-sleeves 22, `split lat 222L and provided with ears, thumb-nuts 2.3, and belts 23a for bringing the `split-sections together. Said sleeve is mounted by means of pins 26, ladaptedto be secured to thesupport l14 in any desirable manner. AThe upper ends of ,saidssleevges ,are yprovided with beveleder lcam-shaped .surfaces 22b for a purpose which will :now :be described. -T-he outer :clamping-sleeves 22 fcarry` inner bearing-sleeves 25, whichare .adapted fto be clamped in place by the {thumb-nuts 23.

Vertical-ly -disposed l tool spindles 20, on whichl the tools 27 `are idirectly mounted, leX- tend ytln-'oughand have bearing in the sleeves 25 and carry on-their upper ends beveled friction-wheels 21. 'The said sleeves 25 are provided withpins 24, adapted for engagement with lt-he ,beveled Aupper ends '221, serving when the sleeve 25 is rotated to permit anydesired vertical adjustment of thesleeve 25 withinthe limits `of said cam, the sleeve 22 being clamped .upon the sleeve 25 when ,adjeustment is effected. Itzwill be obvious that as the tool-spindle 20 is adjusted in different vertical ,posi-tions ya corres onding adjustmentbf the wheels y1,9 will be necessary, which adjustment may be effected in any 1desirable manner. I preferably provide wheels 19 having a beveled surface of greater depth than the wheels 21, the beveled portion of said wheels 19 being increased according to the pitch or throw of the beveled portion 22h.

Means are provided whereby the downward vertical movement of the tool-support may be limited to prevent the tracer and the ,forming-tools from being accidentally injured by sudden contact with the bed-plate 35. It will be understood that the counterweights would normally prevent the toolsupport from dropping by gravity and injuringthe tools Land tracer; but this additional means 'is provided in case .theitoolsupport weresuddenly thrust in a downward irection by .accident or careless usage. The said means consists of a screw 41, which has free engagement with a lug 34u v'and ksupporting engagement -with ya lug 34h, carried by plate 34. A -nut 50 is provided having threaded engagement with thescrew 41 and a projecting ar1n51, apertured to yreceive one end ofthe bolt 52. The opposite end of said bolt is rigidly securedto an arm 1'4", -anchorednto the tool-support. On the upper end of the bolt `52'thereisfprovided aynut adapted to limit downward movement. It will beseen from the foregoing that if it is desired yto -ra-i se ythe tool-support from the `positionshown in Fig. y2 the bolt l52 passes freely throughthe 4farm 51, whereas -if it is. desi-red to :lowerthe tool-,support from said pesi-tion the nut on Asaid ,bolt engaging the projection on nut 50 will prevent such downward movement. The Vtracer 28 isqadjustably mounted upon the tool-base 14 by `means, of -a ser-ew 29, Fig. 1, passing` through lugs 29a, formed on the tool-base. As shown, the tracer 28 is mounted on a spindle 20, whichis formed integral with thescrew-threaded `rod 29.

Theshaft 18 may be driven -byany ineans which will permit of .universal adjustment `of the ytool-base. The driving means Aherein shown consists of a driving-shaft 37, connected y.with the shaft 18 by means of a universall 4joint :36 and anysuitable form of flexible shafting 36a. The shaft37 carries a sheave 39, which isconnected b vany suitable kind of -belting ith la driving-sheave 40, mounted upon 1a shaft 43, carrying fast ,and loose belt-pulleys. Itwill be obvious, howe'ver, that suitable foot-power means can be snbstitutedwhere it is desired to operate -the mechanism manually.

The pattern or model -to be 'reproduced fis arranged and fastened beneath the tracer 28,

and the pieces ofwoed to be carved @are likewiselarranged `and fastened beneath the tools 27 ,upon the bed-plate 35, the operation .proceeding in a manner -well Iknown in carvingmachines of .this kind, Ifit be desired to copy statuesthe bed-.plate ,35 4is removed andsuitable lcenter stocks substituted therefor, the pattern and work-pieces being arranged between the centers ofvsaid stocks.

TOO

V mounted thereon one pair of said spindles and also connected by one pair of said spindles to a support, rods connecting corresponding members of said frames to insure movement thereof in unison, horizontally movable frame members 10 connected to said first-mentioned frames, vertically-swinging members mounted on said members 10, a tool-support carried by said vertically-swinging members, and means wherebysaid'tool-support may be inclined with respect to the vertical.

6. A carving-machine comprising a bedplate for the Aattern and material to be carved, pairs o )vertical spindles, one of said pairs being connected to a stationary support, pairs of carrying-frames articulated by one pair of said spindles and adapted to swing in a horizontal plane, rods connecting corresponding members of'said frames to insure movement thereof in unison, horizon- After one side of the pattern has been copied the operator rotates the pattern, together `with the material on which the pattern is copied, a portion of a revolution, the work being held in required positions by any suitable mechanism, and the operation is continued until the work is finished.

What l claim is- 1. A carving-machine ofthe class described comprising a universally-movable tool-support, a tracer adjustably mounted thereon, a plurality of carving-tools, tool-holders therefor comprising outer sleeves rigidly secured to said support and provided with beveled portions, and inner sleeves having pins engaging said beveled portions.

A 2. A carving-machine of the class described comprising a universally-movable tool-support, a plurality ofcarving-tools, tool-holders thereforr4 comprising outer clampingsleeves rigidly secured to said support and beveled on the upper ends, and inner bearing-sleeves rovidedwith pins engaging said beveled en s.

3. A carving-machine of the class described comprising a toolsupport, a plurality of carving-tools, tool-holders therefor comprising outer clamping-sleeves rigidly secured tosaid support and beveled on the upper ends, and inner bearing-sleeves provided with pins engaging said beveled ends;

4. A'carving-machine comprising in combination a supporting-frame, a bed-plate for supporting the pattern and material to 'be carved, three sets of vertical spindles 3, 6 and 9, one set of spindles 3 being mounted in stationary parts, pairs of carrying-frames 4 and 7 pivotally united by spindles 6, said frames 4 being directly connected to spindles 3, the outer ends of said frames 7 carrying spindles 9, rods connecting corresponding members of said, carryingframes to insure movement thereof in unison, spindles 11, frame members 10 connecting said spindles 9 and 11, rods 12 connected with said spindles 11, a tool-support, and vertically-swinging arms 13 and 15 connecting said support to the spindles 11.

5 A carving-machine comprising a bedplate for the pattern. and material to be carved, pairs of vertical spindles, pairs of horizontally-swinging frames articulated by ing members mounted thereon, a tool-support carried by said verticallyswinging members, means whereby the tool-support maybe inclined with respect to the vertical, and means preventing movement of said tool- 'support below a predeterminedv point and permitting free movement thereof above said point. i

7. A carving-machine comprising a bedplate for the attern and material to be carved, pairs o pairs being connected to a stationary support, pairs of carrying-frames articulated by one pair of said spindles and adapted to swing in a horizontal plane, rods connecting corresponding members of said frames to insure movement thereof in unison, horizontally-movable members 10, vertically-swinging members mounted thereon, a tool-support carried by said verticallyswinging members, and means preventing movement of said tool-support below a predetermined point and permitting free movement thereof above said point.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES SMITZ VAN ACKER.

Witnesses:

T. VAN SHELDON, MICHEL DEDRICK.

tally-movable members 10, vertically-swingvertical spindles, one of said

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