US739537A - Tool-holder for engraving-machines. - Google Patents

Tool-holder for engraving-machines. Download PDF

Info

Publication number
US739537A
US739537A US14107803A US1903141078A US739537A US 739537 A US739537 A US 739537A US 14107803 A US14107803 A US 14107803A US 1903141078 A US1903141078 A US 1903141078A US 739537 A US739537 A US 739537A
Authority
US
United States
Prior art keywords
holder
graver
tool
machines
engraving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US14107803A
Inventor
Allan E Francis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US14107803A priority Critical patent/US739537A/en
Application granted granted Critical
Publication of US739537A publication Critical patent/US739537A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/028—Chucks the axial positioning of the tool being adjustable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17761—Side detent
    • Y10T279/17821—Set screw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool

Definitions

  • My invention relates to tool-holders for engraving-machines having rotary graverstocks.
  • the graver-point must be centrally located in reference to the axis of the stock, and as it is necessary to use difierent gravers in different-kinds of work they must be frequently changed and must be so made that they can be readily attached and removed without being disturbed as to the position the graver occupies when adjusted for work.
  • Fig. 2 shows a finished graver for the holder.
  • Fig. 3 shows a perpendicular section of Fig. 1 made through its axis of rotation.
  • Fig. 4 shows a sectional view of Fig. 1 made on a line with c c, as shown in Fig. 3.
  • D is the case that holds the other elements in their respective positions and by which the whole is attached to the arbor of the machine.
  • a cylinder of steel is machined into the peculiar form shown by D. It is threaded above for connecting it to the arbor, to which it is screwed up to the shoulder thereof, which always brings it in the same position.
  • a hole smaller than the end of the arbor is driven to near its lower extremity and a countersink, hemispherical in form, is used to finish the end of the hole, making a socket in which the ball-like projection on the graver fits, allowing a ball-and-socket motion to a limited degree.
  • the graverpoint receives ample motion to compensate for any unavoidable inequality in grinding or any imperfection in the holderthat would cause it to require moving.
  • Case D is provided with screw B for holding the graver down and with four centering-screws C CC C.
  • Graver A is inserted from the top and is dropped into position, as shown in Fig. 3.
  • the centering-screws which were out far enough to give the graver access, are now brought in to touch the shank and screw B is brought down to it, but not so firmly as to bind it until after it has been centered by screws 0 O O C.
  • the holder being now attached to the arbor of a machine, the usual test is made, and if the point is found to be at one side it can be quickly corrected by properly manipulating the screws to locate just where it should he, then the screw 13 is firmly driven and the graver is ready for use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Description

No. 739,537.: PATENTED SEPT. 22, 1903.
A. B. FRANCIS.
TOOL HOLDER FOR BNGRAVINGMAGHINES.
* APPLIGATIDH iILEDJAK 29, 1903.
K0 MODEL.
cams rnzns m. wom-uma. wAsummn. n. c.
7 UNITED STATES Patented September 22, 1903.
PATENT OFFICE.
ALLAN FRANCIS, or CLEVELAND, 01-110.
SPECIFICATION forming part of Letters Patent No. 739,537, dated September 22, 1903.
Application filed January 29, 1903. fierial No. 141,078- (lilo model.)
To aZZ whom it may concern.-
Be it known that I, ALLAN ELFRANOIS, a citizen of the United States, residing at Cleveland, in the county of Cuyah'oga and State of Ohio, have invented a new and useful Improvement in Tool-Holders for Engraving- Machines, of which the following is a specification.
My invention relates to tool-holders for engraving-machines having rotary graverstocks. In such machines the graver-point must be centrally located in reference to the axis of the stock, and as it is necessary to use difierent gravers in different-kinds of work they must be frequently changed and must be so made that they can be readily attached and removed without being disturbed as to the position the graver occupies when adjusted for work. I attain these objects by the device illustrated in the accompanying drawings, in which- Figure 1 shows a finished holder. Fig. 2 shows a finished graver for the holder. Fig. 3 shows a perpendicular section of Fig. 1 made through its axis of rotation. Fig. 4 shows a sectional view of Fig. 1 made on a line with c c, as shown in Fig. 3.
D is the case that holds the other elements in their respective positions and by which the whole is attached to the arbor of the machine.
A cylinder of steel is machined into the peculiar form shown by D. It is threaded above for connecting it to the arbor, to which it is screwed up to the shoulder thereof, which always brings it in the same position. A hole smaller than the end of the arbor is driven to near its lower extremity and a countersink, hemispherical in form, is used to finish the end of the hole, making a socket in which the ball-like projection on the graver fits, allowing a ball-and-socket motion to a limited degree. By this action the graverpoint receives ample motion to compensate for any unavoidable inequality in grinding or any imperfection in the holderthat would cause it to require moving. Case D is provided with screw B for holding the graver down and with four centering-screws C CC C. Graver A is inserted from the top and is dropped into position, as shown in Fig. 3. The centering-screws, which were out far enough to give the graver access, are now brought in to touch the shank and screw B is brought down to it, but not so firmly as to bind it until after it has been centered by screws 0 O O C. The holder being now attached to the arbor of a machine, the usual test is made, and if the point is found to be at one side it can be quickly corrected by properly manipulating the screws to locate just where it should he, then the screw 13 is firmly driven and the graver is ready for use.
What I claim, and desire to secure by Letters Patent, is-
In engraving machine tool holders the combination of a case or a shell made as shown, being chambered in its lower portion for reception of a graver and having its inside constricted at lower end, to form a seat for the enlarged part of the graver to rest on; a graver consisting of a shank with aneulargement between it and the bit to rest in the seat of the shell; a screw to hold the
US14107803A 1903-01-29 1903-01-29 Tool-holder for engraving-machines. Expired - Lifetime US739537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14107803A US739537A (en) 1903-01-29 1903-01-29 Tool-holder for engraving-machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14107803A US739537A (en) 1903-01-29 1903-01-29 Tool-holder for engraving-machines.

Publications (1)

Publication Number Publication Date
US739537A true US739537A (en) 1903-09-22

Family

ID=2808039

Family Applications (1)

Application Number Title Priority Date Filing Date
US14107803A Expired - Lifetime US739537A (en) 1903-01-29 1903-01-29 Tool-holder for engraving-machines.

Country Status (1)

Country Link
US (1) US739537A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533758A (en) * 1949-07-09 1950-12-12 Scully Jones & Company Floating holder
US2620549A (en) * 1946-03-02 1952-12-09 Process Gear And Machine Co Means for cutting gears
US6109619A (en) * 1999-09-01 2000-08-29 Fine; Seymour H. Back up gripping and a universal tool holder
US20090295104A1 (en) * 2008-05-31 2009-12-03 Raymond Anthony Cover Adjustable Engraving Tool Holder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620549A (en) * 1946-03-02 1952-12-09 Process Gear And Machine Co Means for cutting gears
US2533758A (en) * 1949-07-09 1950-12-12 Scully Jones & Company Floating holder
US6109619A (en) * 1999-09-01 2000-08-29 Fine; Seymour H. Back up gripping and a universal tool holder
US20090295104A1 (en) * 2008-05-31 2009-12-03 Raymond Anthony Cover Adjustable Engraving Tool Holder

Similar Documents

Publication Publication Date Title
US3228265A (en) Boring and facing tool
US739537A (en) Tool-holder for engraving-machines.
US260314A (en) parks
US751198A (en) parpart
US1245360A (en) Old man.
US767598A (en) Adjustable tool-holder for turret-lathes.
US643713A (en) Boring attachment for metal-working lathes.
US601513A (en) Chuck
US85329A (en) Charles h
US656952A (en) Nurling-die holder for screw-machines.
US854669A (en) Tool-holder.
US172682A (en) Improvement in tool-carrier attachments to screw-machines
US809353A (en) Lathe attachment.
US1168063A (en) Tail-stock.
US859336A (en) Double-acting tool for planers and shapers.
US814447A (en) Cutting-tool.
US750108A (en) A coepoea
US759083A (en) Tool-holder.
US1025017A (en) Tool-holder.
US369252A (en) And bukniseing
US781786A (en) Tool-holder.
US850084A (en) Sharpening holder for gravers and other tools.
US1269317A (en) Tool-holder.
US1011717A (en) Tool-holder.
US687645A (en) Tool-holder.