USRE5458E - Improvement in engraving and carving machines - Google Patents

Description

. n zsb-ma-"shli.;- T. w.. MlNTEn. y l Engraving and Carving Machines'. No. 5,458.

signatarios fq'rmig pa-rter all ,wu/wm it mag/concern:

engra4 :PATENT:

-iMPRo'vEnENT IN E'NcRAyme-inno cAy|Ne'MAc H |NEs Be it known-'- that I, THQMASYWJMNTER, of the city, county and State ot' New York, havev invented?'anew and useful Improvement in Englav'in'gand 'Carving Machines and I do and midesrptibn ther'iaof, which willen able those skilledlin,- the art `to make and use the' samefreferehcefbeing had to; the'- accompanyinggdrawingformingpart of this specification,-y finwhichjdrawin-g.

Figure represents aside -elevationofy invention Zisapa'rtial transverse sec-- tionpffth .the plane c c, Fi`g.'1..l \Fig. .3 isla rticafi section V ofth'eame'. Fig off the "ame;partlyinjsecl tin-f. Simian! rsf-iindicatacorrespondingparts Homrelatqgj/ jiew machine for 'ng;andcal-ving'fl sinking, cameo and' intagliocu-ttnjggzandsimilar fine and delicate worllilrjsmn ,for-other material, withl the object off- '.prodcing exact encart-istie imi-- tatibnsfof'editable-designs. f v

-The engraving ni v(shines nojw vin use, or here:- 'tofore proposed, are not adapted Vtotheinest -kindof work non to the'einplo'yment ofall the tools necessary fof n'e workmanshipj'At present,' for vexample, the process of seal-'em graving and cameo-cuttingisoarried out on-a lathe. with the use of over a hundred-differenttools of such various shapes and kinds. that -the work can be ground away as tine as, it is possiblefto .do with the aid' of magnifying 'glassea'j employed'. A

4My invention consists, first, in the arrangement in an engraving or carving machine, of va cutter-wheel carryingspindlejwhich extends l'lctteria Patent Nef-132,594 dated October 29, 41872 35mm i7,- 1 s`13 .application flied April 25, 1873.

tothe same or" nearlyso, such amannr that the cutter is made to att on theuvvork at' a point at right angles ornearly yso tothe direc;

vtion of its Spindle. With-this spindle is com-T'. billed a vibrating-.beam and a tracing-pin, so l ythat While the tracing-pin can be made to follow Y .the linesiof the-patte-rmi the spindle is revolved by belt-.connection th same as 'a lathe-spindle Iand the' i cutter-tool canl be used to thevery same advantage as-that to which it is at present used on the 'lathe only;4 v The patternand the 'work are fastened upon platforms which can be 'tilted intp .any'snitab'le inclined position, and byth'ese means the angle at -which fthe tool strikes the Work can 'be changed, anda great variety of incisions can 'be produced, not only vstraight-npor down, as 4in lth'c present' en grav-"-` 'inglmachines5 but also. inclined, rounded, &c.,

[as may be necessary fontina-'making of reliefs for cameos' or depressions for' intaglios. The

mechanism for inclin-ing the pattern and the4 `Work is so nuitedthat both will receive exactly the same motion,`and offer the saine angle of siuface tothe .tracing-'pin and the tool, respectively. Said mechanism lco'n'oists. 0f 'worm- .Whelsem porting t c pattei'n and thework, and meshing both into the' thread of-an endless screw, which, when turned, brings the platforms to. the desiredposition.' With saidpl'atforins'-are combined disks and Worin-'gears for"y the: l 'purpose ofim parting tothe same a uniform revolv-f ing motion. Said'platforins are also,longi tudinally adjustable, and the'nuts which ernbrace the longitldiuallyladjnsting screw are jointed, so that itl will-accommodate itself an tolnatically .tothe varying height of theplat-4 fornisduring this tilting motion;

Inthe drawing, the letter A'represents the '.supp'ortiug frame of my improveden-graving.- machine. This :frame is" preferably n1ad`einl fornrof a table, of .wood or other material, V andofsufficient strength to support the sev' eral -parts fof i the machine-during operation. 'a

a are two "horizontal rails rigidly' affixed r e-to, the fraineA and parallelfte each :other- TheyA serve as 4supports" for three carriages, B,

B2, and, yB, whichare all1 of lequal size-'andstyle," at least-'preferably so, and -which are or v maybeinad'ejto partly .embrace therails, as

'acrossfthe surface of 'the Work and has a-fsyvinging motionover such snri'ace in a plane parallel indicated-in Rigs. 1 and 2, with i-'rictionrollers reissue ,458i dated ents applied to the platform sup-v or springs b bearing-against the lower edges of the rails to facilitate the longitudinal adjustment ofthe carriages. Each carriageis provided with a nut, d, made in two parts, which are hinged together, as is indicated in Fig. 2. A longitudinal screw, C, which has handle, f. Every carriage contains a platform, E, pivoted at its ends in brackets g g,

which'project from the carriage. A segment,

- h. is atdxed to the under side of every pivoted platform E, and-has a worm-thread cut into yits edge, .which is in gear with another longitudinal screw, F, whose bearings are in 'the endsof. the frame A. All three platforms and their. segments being alike, the effect of the screw F, when turned, will be the same on all, tilting or inclining them simultaneously, and atan equal degree.' A crank-handle, t', on the screw F, is used to-turn it. To the upper surface of every platform E is applied a swivel disk or plate, G, with a worm-thread around -i'ts periphery. Transverse lscrews 'H H H,

hanging in ears j j, which project from the several platforms, are in gear with the disks or plates G, respectively. W crm-wheels I, l2, and Z3, mountedv upon the ends of the transverse screws H El2 H3, are' in gear with a third longitudinal screw, I, whose bearings are in the end of the frame A. Vif hen the screw I is turned bymeans ot a handle at its end or by a handle,

on, Figs. l and 4, whose Varbor connects by bevel-wheels u n with the screw I, all the three screws II, H2, and H3 will be turned in equal ratio, and all the three disks G by them 'in equal degree. When by means of the screw F the three platforms E are more or less tilted on their carriages, the planeot' the screws H, H2, and H3 willy become changed, and it is therefore necessary, as these screws should remain in gear with the screw I, to make the bearings o o of the screw I vertically adjustable in their slotted supports. 'ihen the crankhandle m, Figs. l and 4, is used at right angles to the screw I, it too should be made vertically adjustable by. being hung in a sleeve, p, whichloosely embraces the screw I, and finds; guidance in the slotted upright'o' of the frame A.

From the foregoin g it will be clear that, by means of the screw all three carriages are simultaneously adjusted in longitudinal direction; by means ot' the screw F all three platforms are simultaneously tilted 5 while byv the screw 'I all three disks G will be equally and simultaneously..turned. The disks being part of the platforms, and these again part of the carriages, the longitudinal adj ustlneiit of the latter will be shared in by all the platforms and disks, and the tilting of the plat-forms shared inV by the disks. Whenever the distances between the several carriages are to be varied, the hinged-nuts d are. swung open and thereby liberated from the screw C, so that the change of position can be:eifected, whereupon the nuts are reclosed. J is a beam, pivoted in a ring, s, which is pivoted in ears of a vertically-adjustable slide, L, embracing a post, t, of the frame A. The free end of the beam .I is suspended by a spring, u, from a horizontal arm, t', of the frame A.' In a bracket, w, which is fastened to the under' side of the beam, are the bearings of a spindle, which carries a pulley,y y, and is prepared for the reception-of the cutting-tool z in the manner in which spindles are usually prepared for-the reception ot such tool. The spindle can be revolved by a belt connection with a driving-shaft, M, operated upon by'means of a treadle, or otherwise. the beam aie also' suspended two vertical pins,N and N3, which are attached to slides I 0, adjustable on the beam J, and applied above the carriages 13 'and B3, respectively.

` The pattern to be imitated is secured'upon the disk G of the carriage B3, if its copy is to.

be reduced in size; or upon the' disk G of the'- carriage B, when the` copy is to be larger than the original. f .f

The metal, stone orot-her material to be cut, is fastened upon the middle disk G. The several disks are,by tubular projections for the recel'ition of pieces of wood', upon which the patterns and material to be cut can be fastened.- When every thing is in place the screws C, F'and I are properly turned by the attendant to bring' every part of the pattern surface 'in contact with the tracing-pin N -or N3, which is suspended" from the beam J. The cutting-tool will then also be raised and lowered in con-4 formity with the design to be cut, and will produce such design on the materia-lander it.

The machine may be made with but two' carriages and their appendages, when either nov enlargement or no reduction is desired, or when the bracket yw is made adjustable-on the beam or-the beam reversible.

In order to enable the fastening of each platform in' its tilted posit-ion, while being longitudinally adjusted, in which caserthe screw F must be'lowered to permit such longitudinal adjustment, and would consequently cease to support the platforms in their tilted posit-ions, a' slotted arch or plate should be applied to theend ot' each plat-form, to be 4fastened by a set-screw to the bracket g next to it.

From this description it will be seen that in my machine the spindle .'11, which carries the tool, extends across the surface of thev work, andca-n be swung in a to said surface, or nearly so, and that the tool acts on the work at a point at right angles,or

nearly so, `to the direction of the spindle.' y

4By this arrangement of the tool-,carrying spindle, l am enabled to. produce lines of,

From

preference, provided 4wit-h plane parallel .every desirable kind, the tool acting ou the Work in the same manner as it does'in the ordinary lathe; lbut there is the di'erence, that in my machine thetool is .caused totralverse vover the surface ofthe work according to the lines of the pattern, while in thei ordinary lathe the toolhas simply a revolving motion, and the work must be moved to cause .the tool to f ollow the required designs.L u l By combining-With this traversing toolcarrying spindle a work-supportingplatform,

which-can be brought in an inclined or horizontal position, the varietyof lines to. ne prodncd`is still further increased, since the same tool will produce dilerent lines according to the angle under which it acts upon the work.v What I claim 'as new, and .desire to secure by Letters Patent, is-

1. vIn an engraving or carving 'machine-.the arrangement of a vspindle carrying a cutteru'lieel, .substantially .asidescribed, andhavng over said surface in a plane parallel to the same, or nearly so, substantially as set forth.

3. The vibrating beam, J carrying the tracing-pin and the bracket 1v, which-forms the bearings ofthe tool-carrying spindle, substa'ntially as herein shown and described.

4. The rotary disks G G, applied to the' platforms'E E, and combined with the transverse-screws H El?, to be turned simultaneously purpose he in shown and described.

6.. The worin-segment h, applied to the piv- .oted platform E, for connecting'the'same with -the.tilting-screw F, substantially as specified.

7 The nuts d d,.onthe.carriages B and B?,

` when mad@ jointed 2131111 hinged, substantially as' described.

8.l The screw I for-inoving. the transversescrews H and H2, when made-vertically. selfadjusting to adapttself to the varying positions of said transverse screws, while-the platforms are being tilted, substantiallyas specified.'l

9. The' coinbi'u'ationot the three longitudivnal-screws U, F, and I with the carriages B B2, platforms E E, disks G G, aud transverse screws` H H2 substantially as herein shown and described. 5

10. An engraving-machine employing a ro` vtary cutter on a vibrating beam abovea platform, adjustable substantially in the manner specified.

-THQMAS Wl MlNTER,

YVit-n esses z ,.W. HAUFF.

E. F; KAsrEivHUnnn.

by means Yof a single screw, I, asset Vfortl1.' T f 5, The tiljg plat-form E, applied to a-n eiivgravi-ng mzhine, substantially as and for the

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