US2660933A - Inside ring engraving attachment - Google Patents

Inside ring engraving attachment Download PDF

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Publication number
US2660933A
US2660933A US193497A US19349750A US2660933A US 2660933 A US2660933 A US 2660933A US 193497 A US193497 A US 193497A US 19349750 A US19349750 A US 19349750A US 2660933 A US2660933 A US 2660933A
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ring
engraving
holder
attachment
shaped
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US193497A
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Wilbur M Garing
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/001—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings by copying
    • B44B3/002—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings by copying using a pantograph

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  • This invention relates to engraving machines of the pantograph type used primarily for engraying jewelry and the like, and in particular a V-jaw holder for a ring and an L-shaped stylus holder with a clamp for attaching the holder to a following arm of a pantograph unit whereby the stylus or diamond point extends inside of a ring and is actuated by a tracing point of the pantograph.
  • the purpose of this invention is to provide means for engraving names, dates, initials, and the like inside of rings by mechanically actuated instrumentalities.
  • this invention contemplates an attach ment for engraving machines whereby a diamond cutter is suspended by an L-shaped holder mounted on a pantograph whereby with a tracing stylus following characters on a work board or dial the diamond point duplicates the characters on the inner surface of a ring.
  • the object of this invention is, therefore, ,to provide means for forming mounting attachments on engraving machines whereby with a ring vertically positioned on the bed of the machine a diamond point actuated by a tracing stylus enters the ring and engraves the inne surface thereof.
  • Another object of the invention is to provide means for rigidly clampin a ring to facilitate engraving on the inner surface.
  • Another object of the invention is to provide amaster disc having letters, numerals or characters thereon and means for mounting the disc 'on the work board of an engraving machine.
  • a further object of the invention is to provide attachments to facilitate engraving the inner surfaces of rings withengraving machines of the pantograph type, which are of a simple and economical construction;
  • the invention embodies a diamond point holder formed with an L-shaped arm having a clamp at the upper end "for securing theholder on the spindle housing of a pantograph attachment of an engraving machine, V-shaped gripping jaws for rigidly holding a ring on the machine, and a master wheel having characters thereon positioned to be followed by a stylus M point of the pantograph attachment.
  • FIG. 1 Figure l isa plan view of an engraving machine having a pantograph attachment showing the position of the ring holding gripping jaws, the diamond point holder, and the master disc,
  • Figure 2 is a plan view illustrating the master disc with the mounting elements therefor.
  • Figure 3 is a longitudinal section through the master disc and mounting elements taken on line 33 of Figure 2.
  • Figure 4 is a detail showing an end elevational view of the master disc with the disc retaining dogs and clamping means for the dogs.
  • Figure 5 is a plan view of the mounting plate: for the master disc with the disc and holding: elements therefor omitted.
  • Figure 6 is a detail showing a plan View of the (105.
  • Figure '7 is a detail showing an end elevational'.
  • Figure 8 is a detail illustrating the V-shaped gripping jaws for holding a ring in position on the bed of the engraving machine.
  • Figure 11 is a longitudinal section through one of the ring gripping jaws taken on line ll--Il of Figure 10.
  • Figure 12 is a side elevational view illustrating the diamond cutter holder that is attached to the spindle housing'of the pantograph.
  • Figure 13 is a plan view of the holder shown in Figure 12.
  • Figure 14 is an end elevational View of the holder shown in Figure 12.
  • Figure 15 is a detail on an enlarged scale illustrating the diamond cutter mounting means in the end of the arm at the lower end of the holder with the upper part of the arm broken away and with the outer end of the arm broken away and shown in section.
  • the engraving machine attachment for engraving the inside of rings of this invention includes an L-shaped holder i0, V-shaped gripping jaws ii and i2 and a master disc l3 which is rotatably mounted on a pin M of a mounting plate 15 and which is retained in operative position by a dog I6, 2. point I! of which snaps into notches It! in the periphery of the disc l3.
  • the holder is provided with a horizontally disposed lower arm l9 and a diamond point at in a holder 2
  • the bushing 22 is provided with a screw driver slot 24 and by this means the position of the diam-0nd cutter or point is vertically adjustable.
  • the upper end of the holder H) is provided with a clamp 25 which is split on the side opposite to that from which the holder extends and the split side is provided with flanges Z5. and 21.
  • Athumb screw 28 extends through an opening 29 in the flange E! is threaded in a opening 31! in the flange 26 so that the clamp, which is provided with an internally threaded opening 31 may be threaded on the lower end of a spindle housing 32 of a pantcgraph arm 33, and clamped in position.
  • y t thumb screw 2.8..
  • t diamond cutter is positioned to enter t e ring as. indicated by the dotted, lines 34' Fi ure 8, the rin be n clamped b w en the. hap d uri ces 35mm it of the. grippin jaws i; II and [2, respectively.
  • the jaw H is mounted by steel pins, 3]. and 38 on a traveling block 32 of. the work holder 4B of the engraving machine, and the. jaw i2 is positioned on pins, 4; onasimiliar traveling block 43.
  • the blocks 39' and d3 are actuatedby a, screw 44 of the machine, whereby the V -shapcd gripping sulfiaces are actuated to clamping, position with the ring and also. mo ed away from. the, ring.
  • the vshaped surfacestiifi, and 36 are formed in sections 45' and. 46 of the jaws H, and. i2 and. the inner faces of the, V-shaped, surfaces are, provided with V-shaped recesses as indicated by the numerals 41 anddB; in Figures, l 0 and 11., These, recesses extend outwardly from, points. .419. and 5.0 and are substantially triangular shaped in section.
  • the ring gripping, jaws Hand ii are substan tially L -shaped in elevation, as illustrated in Figure 11, the. jaw. U being provided withan upper net section. 51. ha g a l t. 52. th rein, and the jaw lfihavinga. similar section 533 with a,slot 54, therein.
  • Themasterv disc 1.3 as illustrated, in. Figures 2, 3 and 4., is provided with an. outer row ofletters and an inner row of numerals-56..
  • Thesdisc is formedwith a. threaded centrally positioned opening 51.
  • the dog 16" is provided with a keyGfithat is slidably mounted in' a 5101765 inthe mounting plate 15 and a spring fifi also positioned'inthe slot 6'5 urgesthe point Hof the dogxtowardthe master disc, l3, and holdsthe point, in one of the notches. l8..
  • Thedog i6 isnalso provided. with a. grippinghead 5.1L by which it may. bemanually withdrawn fromthe notches of the. master. disc.
  • the key 64 isprovided with. a threaded. stud .68 on which a flat nut: 69.. is threaded to. retain '4 the dog in position on the upper surface of the plate [5.
  • the mounting plate It is provided with beveled edges 10 and H to correspond with longitudinally disposed grooves 12 and 13 in the work board 14 of the engraving machine.
  • a threaded stud 15 having a head 16 extends through the mounting plate l5, being threaded in an opening 11 in the plate and extending into a threaded opening in the Work board of the machine.
  • a ring, as indicated by the numeral 34 is clamped in the V-shaped gripping jaws by turning the screw 44 and with a letter that it is desired to engrave in the inner surface of the ring, on the master disc l:3-, in the proper position the tracing stylus is carried over the lines of the letter Whereby the diamond cutter 20, which follows the stylus, engraves the letter on the inner surface of the ring.
  • the diamond cutter 20 By manually indexing the ring to obtain the proper spacing between letters one letter. or figurei after another may be engraved in. the inner surface of the ring by rotating the master disc. I3 and. actuating the tracing stylus over the letter or figure.
  • the parts of the pantograph may be adjusted so that the cutter in the end of the arm" 19 of the holder it extends into the ring and the mounting plate 1'5" of the master disc l3 maybe set according to the ring and the letters to be engrewed therein to a predetermined position on the work board of the engraving machine.
  • the mounting plate may be provided with a setting point. 19 that is positioned. to register with an indexing point on the work board of the machine.
  • pantograph parts arev suspended from a mounting bar 8
  • the positions of the cutting point andtracing stylus may readily be adjusted to engrave initials, names, dates and the like on theinnersurfajces of rings, or other jewelryand' the. outer surfaces of foot ball's basketballs, cigarette lighters and the like may. be similarly engraved.
  • L..A.ring engaging. clamp for; use with. the travelling blocks of. a2workholderof .an..engraving machine comprising a pair. of substantially L- shapedjaws that aremountedlon .the travelling blecks,.. v.-shapedl.surf aces. mounted ,on. said j aws in vertical. relation. thereto, and V-shaped recessesfdrmedinv thev inner. faces .offsaid. V-shap ed surfaces-whereby a. ringrnay be gripped by said jawswhen 1 positioned. in. .said! V.-shaped recesses.

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Description

W. M. *GARING INSIDE RING ENGRAVING ATTACHMENT Dec. 1, 1953 3 Sheets-Sheet 1 Filed Nov. 1, 1950 w Q Q m a T 1 wwhifiw m 3W a A W EH3? 4. 01 a v3 H w l I 5 M m m a 0 7 u in Q G v a T in? 6W Dec. 1, 1953 w. M. GARING INSIDE RING ENGRAVING ATTACHMENT 3 Sheets-Sheet 2 Filed NOV. 1, 1950 I N VEN TOR. MZZur/ Z Karin ATTD RN EYE Dec. 1, 1953 w. M. GARING 2,660,933
INSIDE RING ENGRAVING ATTACHMENT Filed Nov. 1, 1950 V 5 Sheets-Sheet 3 INVENTOR. I h z'lfizzr/faring @a /umo 'a ATTIJ RN EYE Patented Dec. 1 1953 INSIDE RING ENGRAVIN G ATTACHMENT Wilbur M. Garing, Torrington, Wyo.
Application November 1, 1950, Serial No. 193,49?
This invention relates to engraving machines of the pantograph type used primarily for engraying jewelry and the like, and in particular a V-jaw holder for a ring and an L-shaped stylus holder with a clamp for attaching the holder to a following arm of a pantograph unit whereby the stylus or diamond point extends inside of a ring and is actuated by a tracing point of the pantograph.
The purpose of this invention is to provide means for engraving names, dates, initials, and the like inside of rings by mechanically actuated instrumentalities.
Various duplicating devices have been provided of the pantograph type for drawings, cutting, and engraving and whereas the devices work satisfactorily on the surface they are not adapted for use on the inside of an object, such as engraving the inside of a ring. With this thought in mind this invention contemplates an attach ment for engraving machines whereby a diamond cutter is suspended by an L-shaped holder mounted on a pantograph whereby with a tracing stylus following characters on a work board or dial the diamond point duplicates the characters on the inner surface of a ring.
The object of this invention is, therefore, ,to provide means for forming mounting attachments on engraving machines whereby with a ring vertically positioned on the bed of the machine a diamond point actuated by a tracing stylus enters the ring and engraves the inne surface thereof.
Another object of the invention is to provide means for rigidly clampin a ring to facilitate engraving on the inner surface.
-' Another object of the invention is to provide amaster disc having letters, numerals or characters thereon and means for mounting the disc 'on the work board of an engraving machine.
A further object of the invention is to provide attachments to facilitate engraving the inner surfaces of rings withengraving machines of the pantograph type, which are of a simple and economical construction;
With these and other objects and advantages in view the invention embodies a diamond point holder formed with an L-shaped arm having a clamp at the upper end "for securing theholder on the spindle housing of a pantograph attachment of an engraving machine, V-shaped gripping jaws for rigidly holding a ring on the machine, and a master wheel having characters thereon positioned to be followed by a stylus M point of the pantograph attachment.
4' Claims. I (Cl. 9061) Other features and advantages of the invention will appear from the following description taken in connection with the drawings wherein:
1 Figure l isa plan view of an engraving machine having a pantograph attachment showing the position of the ring holding gripping jaws, the diamond point holder, and the master disc,
Figure 2 is a plan view illustrating the master disc with the mounting elements therefor.
Figure 3 is a longitudinal section through the master disc and mounting elements taken on line 33 of Figure 2.
Figure 4 is a detail showing an end elevational view of the master disc with the disc retaining dogs and clamping means for the dogs.
Figure 5 is a plan view of the mounting plate: for the master disc with the disc and holding: elements therefor omitted.
Figure 6 is a detail showing a plan View of the (105.
Figure '7 is a detail showing an end elevational'.
view of the disc retaining dog and clamping nut therefor.
Figure 8 is a detail illustrating the V-shaped gripping jaws for holding a ring in position on the bed of the engraving machine.
one of the gripping jaws.
Figure 11 is a longitudinal section through one of the ring gripping jaws taken on line ll--Il of Figure 10.
Figure 12 is a side elevational view illustrating the diamond cutter holder that is attached to the spindle housing'of the pantograph.
Figure 13 is a plan view of the holder shown in Figure 12.
Figure 14 is an end elevational View of the holder shown in Figure 12.
Figure 15 is a detail on an enlarged scale illustrating the diamond cutter mounting means in the end of the arm at the lower end of the holder with the upper part of the arm broken away and with the outer end of the arm broken away and shown in section.
' Referring now to the drawings wherein like reference characters denote, corresponding parts the engraving machine attachment for engraving the inside of rings of this invention includes an L-shaped holder i0, V-shaped gripping jaws ii and i2 and a master disc l3 which is rotatably mounted on a pin M of a mounting plate 15 and which is retained in operative position by a dog I6, 2. point I! of which snaps into notches It! in the periphery of the disc l3.
The holder is provided with a horizontally disposed lower arm l9 and a diamond point at in a holder 2| is carried by a bushing 22 that is threaded in a socket 23 in the outer end of the arm. The bushing 22 is provided with a screw driver slot 24 and by this means the position of the diam-0nd cutter or point is vertically adjustable.
The upper end of the holder H) is provided with a clamp 25 which is split on the side opposite to that from which the holder extends and the split side is provided with flanges Z5. and 21. Athumb screw 28 extends through an opening 29 in the flange E! is threaded in a opening 31! in the flange 26 so that the clamp, which is provided with an internally threaded opening 31 may be threaded on the lower end of a spindle housing 32 of a pantcgraph arm 33, and clamped in position. y t thumb screw 2.8..
With the holder mount d. on he. pantogra-ph n this. t diamond cutter is positioned to enter t e ring as. indicated by the dotted, lines 34' Fi ure 8, the rin be n clamped b w en the. hap d uri ces 35mm it of the. grippin jaws i; II and [2, respectively.
The jaw H, is mounted by steel pins, 3]. and 38 on a traveling block 32 of. the work holder 4B of the engraving machine, and the. jaw i2 is positioned on pins, 4; onasimiliar traveling block 43. The blocks 39' and d3 are actuatedby a, screw 44 of the machine, whereby the V -shapcd gripping sulfiaces are actuated to clamping, position with the ring and also. mo ed away from. the, ring.
As llustrated n. Figures 9.1.0 and 11. the vshaped surfacestiifi, and 36, are formed in sections 45' and. 46 of the jaws H, and. i2 and. the inner faces of the, V-shaped, surfaces are, provided with V-shaped recesses as indicated by the numerals 41 anddB; in Figures, l 0 and 11., These, recesses extend outwardly from, points. .419. and 5.0 and are substantially triangular shaped in section.
The ring gripping, jaws Hand ii, are substan tially L -shaped in elevation, as illustrated in Figure 11, the. jaw. U being provided withan upper net section. 51. ha g a l t. 52. th rein, and the jaw lfihavinga. similar section 533 with a,slot 54, therein. With the, jawsshapedinzthis manner. they are readily pcsitioned'on thetraveling blocks lid and 43; asv illustrated, in Figure. 8. Themasterv disc 1.3, as illustrated, in. Figures 2, 3 and 4., is provided with an. outer row ofletters and an inner row of numerals-56.. Thesdisc is formedwith a. threaded centrally positioned opening 51. and a threaded neck. 58, of. a. cup shaped washer E9 in which a knurled headzlifl of the pin i4 is positioned; is threadedirr the opening with the pin extending through a. centrally. positioned opening 6'] of the:cup shaped washer and threadedlinto an.opening'6:2-in the mounting plate l5. The knurled head fiiliisprovided with ascrew driver slot 63 by which" the friction of the master disc maybe adjusted.
The dog 16" is provided with a keyGfithat is slidably mounted in' a 5101765 inthe mounting plate 15 and a spring fifi also positioned'inthe slot 6'5 urgesthe point Hof the dogxtowardthe master disc, l3, and holdsthe point, in one of the notches. l8.. Thedog i6 isnalso provided. with a. grippinghead 5.1L by which it may. bemanually withdrawn fromthe notches of the. master. disc. The key 64 isprovided with. a threaded. stud .68 on which a flat nut: 69.. is threaded to. retain '4 the dog in position on the upper surface of the plate [5.
The mounting plate It is provided with beveled edges 10 and H to correspond with longitudinally disposed grooves 12 and 13 in the work board 14 of the engraving machine. A threaded stud 15 having a head 16 extends through the mounting plate l5, being threaded in an opening 11 in the plate and extending into a threaded opening in the Work board of the machine.
With the. parts arranged in this manner a ring, as indicated by the numeral 34 is clamped in the V-shaped gripping jaws by turning the screw 44 and with a letter that it is desired to engrave in the inner surface of the ring, on the master disc l:3-, in the proper position the tracing stylus is carried over the lines of the letter Whereby the diamond cutter 20, which follows the stylus, engraves the letter on the inner surface of the ring. By manually indexing the ring to obtain the proper spacing between letters one letter. or figurei after another may be engraved in. the inner surface of the ring by rotating the master disc. I3 and. actuating the tracing stylus over the letter or figure.
The parts of the pantograph may be adjusted so that the cutter in the end of the arm" 19 of the holder it extends into the ring and the mounting plate 1'5" of the master disc l3 maybe set according to the ring and the letters to be engrewed therein to a predetermined position on the work board of the engraving machine. In order to facilitate setting the master disc the mounting plate may be provided with a setting point. 19 that is positioned. to register with an indexing point on the work board of the machine.
As illustrated'in Figure 1' the pantograph parts arev suspended from a mounting bar 8| by'pins t2. and 83' and the bar 8| is adjustably mounted ona bracket 84 on the bed of the machine by a pin 85, thepositi'on of which may be adjusted by an. adjusting. screw 86; By, this means the positions of the cutting point andtracing stylus may readily be adjusted to engrave initials, names, dates and the like on theinnersurfajces of rings, or other jewelryand' the. outer surfaces of foot ball's basketballs, cigarette lighters and the like may. be similarly engraved.
It will'be und'erstoodthat modifications may be .madein thedesign and arrangementof the parts withoutdepartihgfrom the spirit ofithe invention.
Whatis claimedisz.
L..A.ring engaging. clamp, for; use with. the travelling blocks of. a2workholderof .an..engraving machine comprising a pair. of substantially L- shapedjaws that aremountedlon .the travelling blecks,.. v.-shapedl.surf aces. mounted ,on. said j aws in vertical. relation. thereto, and V-shaped recessesfdrmedinv thev inner. faces .offsaid. V-shap ed surfaces-whereby a. ringrnay be gripped by said jawswhen 1 positioned. in. .said! V.-shaped recesses.
2. A; ring. engraving; clamp as in. claim- 1 wherein means is provided. for. urging. the- L..- shapedjaws toward. each other to.engag e and-retain theJging-in the said. .V-'shap.ed.recesses.-
3.-A- ring. nga n clamp. as in claim. 1 wherein said. Leshaped jawsareprovidedwith elong-atedslotsfor mounting-isaid jaws on: the travelling. blocksof thaengraving machine.
4. Aring engaging. clampv as in claim LwhereintheV-shaped. surfaces vofthe L-shapedjaws converge inwardly:towardthecenterI of thej aws and the V-shapednotchesextend said surfaces the center of the jaws.
References Cited in the file of this patent WILBUR M. GARING.
UNITED STATES PATENTS Number Name Date Earle July 4, 1882 Goodnow et a1 June 2, 1902 Beam Sept. 8, 1903 1 Fleisch Apr. 15, 1913 Goddu et a1. Jan. 5, 1943 Number 0 Number Name Date Butler-Jones Mar. 21, 1944 Hargrett et a1. Dec. 20, 1949 Masi June 19, 1951 Gruettner et a1. July 31, 1951 Makishima Aug. 28, 1951 Garing Mar. 24, 1953 FOREIGN PATENTS Country Date Great Britain 1902 France Jan. 11, 1912 Great Britain Nov. 11, 1940
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749617A (en) * 1952-11-13 1956-06-12 New Hermes Ring Engraving Corp Engraving machine attachment
US3263333A (en) * 1964-04-06 1966-08-02 Neil H Bell Circular template for engraving machines and the like
US3310874A (en) * 1965-02-01 1967-03-28 New Hermes Engraving Mach Co Circular engraving apparatus
US3415158A (en) * 1966-04-12 1968-12-10 Overmyer Mould Company Of Penn Mold blank centering and clamping device

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US260463A (en) * 1882-07-04 Engraving-machine
GB190212318A (en) * 1902-05-29 1903-04-16 William T Goodnow Improvements in Engraving Machines.
US729758A (en) * 1901-09-07 1903-06-02 Eaton & Glover Company Engraving-machine.
US738149A (en) * 1901-02-11 1903-09-08 Edith E Beam Engraving-machine.
FR436015A (en) * 1911-11-06 1912-03-15 Rupert Fleisch Burning device
US1058955A (en) * 1911-10-19 1913-04-15 Rupert Fleisch Engraving-machine.
GB528946A (en) * 1939-03-17 1940-11-11 Ivan Benkoe Improvements in or relating to copying devices
US2307501A (en) * 1939-06-20 1943-01-05 American Optical Corp Means for marking lenses and similar articles
US2344849A (en) * 1940-01-31 1944-03-21 Butler Jones Nameplates Ltd Copyholding appliance and copies for use in engraving machines
US2491559A (en) * 1947-04-10 1949-12-20 Hargretts Small Parts Machinin Fixture
US2557447A (en) * 1948-11-22 1951-06-19 Augustine J Masi Pen holding attachment for engraving machines
US2562269A (en) * 1947-05-07 1951-07-31 New Hermes Ring Engraving Corp Copying machine for engraving jewelry rings
US2565821A (en) * 1947-08-27 1951-08-28 Makishima Kenji Trophy holder for engraving machines
US2632249A (en) * 1951-07-19 1953-03-24 Wilbur M Garing Stylus holder

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US260463A (en) * 1882-07-04 Engraving-machine
US738149A (en) * 1901-02-11 1903-09-08 Edith E Beam Engraving-machine.
US729758A (en) * 1901-09-07 1903-06-02 Eaton & Glover Company Engraving-machine.
GB190212318A (en) * 1902-05-29 1903-04-16 William T Goodnow Improvements in Engraving Machines.
US1058955A (en) * 1911-10-19 1913-04-15 Rupert Fleisch Engraving-machine.
FR436015A (en) * 1911-11-06 1912-03-15 Rupert Fleisch Burning device
GB528946A (en) * 1939-03-17 1940-11-11 Ivan Benkoe Improvements in or relating to copying devices
US2307501A (en) * 1939-06-20 1943-01-05 American Optical Corp Means for marking lenses and similar articles
US2344849A (en) * 1940-01-31 1944-03-21 Butler Jones Nameplates Ltd Copyholding appliance and copies for use in engraving machines
US2491559A (en) * 1947-04-10 1949-12-20 Hargretts Small Parts Machinin Fixture
US2562269A (en) * 1947-05-07 1951-07-31 New Hermes Ring Engraving Corp Copying machine for engraving jewelry rings
US2565821A (en) * 1947-08-27 1951-08-28 Makishima Kenji Trophy holder for engraving machines
US2557447A (en) * 1948-11-22 1951-06-19 Augustine J Masi Pen holding attachment for engraving machines
US2632249A (en) * 1951-07-19 1953-03-24 Wilbur M Garing Stylus holder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749617A (en) * 1952-11-13 1956-06-12 New Hermes Ring Engraving Corp Engraving machine attachment
US3263333A (en) * 1964-04-06 1966-08-02 Neil H Bell Circular template for engraving machines and the like
US3310874A (en) * 1965-02-01 1967-03-28 New Hermes Engraving Mach Co Circular engraving apparatus
US3415158A (en) * 1966-04-12 1968-12-10 Overmyer Mould Company Of Penn Mold blank centering and clamping device

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