US833712A - Hand-tool. - Google Patents

Hand-tool. Download PDF

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Publication number
US833712A
US833712A US25696405A US1905256964A US833712A US 833712 A US833712 A US 833712A US 25696405 A US25696405 A US 25696405A US 1905256964 A US1905256964 A US 1905256964A US 833712 A US833712 A US 833712A
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United States
Prior art keywords
hand
impact
tool
pointed
cylindrical
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Expired - Lifetime
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US25696405A
Inventor
Henry Geisenhoener
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Individual
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Priority to US25696405A priority Critical patent/US833712A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D5/00—Centre punches

Definitions

  • the present invention relates to handtools, and more particularly to self-impacting pluggers and priclcpunches.
  • the object of my invention is to provide a durable and economically-constructed tool of this character which may be directly actuated to produce any desired force of impact without necessitating the adjustment of auxiliary parts.
  • FIG. 1 is a side elevation with the parts in their normal position
  • Fig. 2 is an axial section with the impact member in its distended position.
  • the prick-punch consists of a pointed member 1, an impact member 2, and a tension member 3.
  • the pointed member 1 is shaped at its lower end in the usual manner. At its middle portion 4 it is made cylindrical and is preferably knurled. At its upper end it has a reduced threaded portion 5 and a short cylindrical portion 6 of less diameter than the threaded portion and is provided with a flat surface 7 at its free end. Extending from the upper and through nearly one-half the length of the member 1 is a small axial bore 8.
  • the impact member 2 has a cylindrical upper end 9, preferably knurled and of the same diameter as the middle portion 4 of the pointed member, a threaded portion 10 of reduced diameter below the cylindrical end 9, a plain cylindrical portion 11 beneath the threaded portion 10 and of less diameter, and a cylindrical guidespindle 12, extending axially from the lower end of the cylindrical portion 11 and of a diameter to freely enter and telescope with the axial bore 8 in the pointed member 1.
  • square shoulder 13 is formed at the lower end of the cylindrical portion 11, which is adapted to impinge upon the flat-surfaced upper end of the pointed member 1.
  • the tension member 3 consists of a helical spring made of roundwire with its respective spirals normally in contact and connected at its respective ends to the pointed member 1 and the impact member 2 by screwing the threaded portions 5 and 10 into the ends of the helix.
  • the pointed member 1 In using the pricke punch the pointed member 1 is held in engagement with the work with one hand, while the impact member 2 is raised by the other hand against the tension of the spring 3 to a height according to the impression it is desired to make in the work and released, whereupon the spring causes the member 2 to descend with the requisite force, and being accurately guided by the telescopic action of spindle 12 in en gagement with the side walls of the bore 8 the shoulder 13 is caused to impinge upon the flat upper end of the pointed member 1 with the desired impact.
  • a self-impacting tool consisting of a pointed member, an impact member, telescopic means carried by said members for guiding the latter member relatively to the former, and a tension member connecting the other members.
  • a self-impacting tool consisting of a pointed member provided at one end with an axial bore, an impact member provided at one end with a guide-spindle adapted to enter said bore, and a helical spring connecting said members.
  • a self-impacting tool consisting of a pointed member provided at one end with an impact surface and an axial bore, an impact member provided at one end. with an impactshoulder and a guide-spindle adapted to enter said bore, and a helical spring surrounding and connected to the end portions of said members.

Description

PATENTED 001. 16,- 1906.
Nhm
HAO
Inventor.
Henry Geisenh'o'ner.
UNITED STATES PATENT oFEIoE.
HAND-TOOL- Specification of Letters Patent.
Patented Oct. 16, 1906.
Application filed April 22, 1905. Serial No. 256,964-
To all whom it may concern.-
Be it known that I, HENRY GEISENHoNER, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented certain new and useful Improvements in Hand- Tools, ofwhich the following is a specification.
The present invention relates to handtools, and more particularly to self-impacting pluggers and priclcpunches.
The object of my invention is to provide a durable and economically-constructed tool of this character which may be directly actuated to produce any desired force of impact without necessitating the adjustment of auxiliary parts.
The invention is shown applied to a prickpunch in the accompanying drawings, in which Figure 1 is a side elevation with the parts in their normal position, and Fig. 2 is an axial section with the impact member in its distended position.
The prick-punch consists of a pointed member 1, an impact member 2, and a tension member 3. The pointed member 1 is shaped at its lower end in the usual manner. At its middle portion 4 it is made cylindrical and is preferably knurled. At its upper end it has a reduced threaded portion 5 and a short cylindrical portion 6 of less diameter than the threaded portion and is provided with a flat surface 7 at its free end. Extending from the upper and through nearly one-half the length of the member 1 is a small axial bore 8. The impact member 2 has a cylindrical upper end 9, preferably knurled and of the same diameter as the middle portion 4 of the pointed member, a threaded portion 10 of reduced diameter below the cylindrical end 9, a plain cylindrical portion 11 beneath the threaded portion 10 and of less diameter, and a cylindrical guidespindle 12, extending axially from the lower end of the cylindrical portion 11 and of a diameter to freely enter and telescope with the axial bore 8 in the pointed member 1. square shoulder 13 is formed at the lower end of the cylindrical portion 11, which is adapted to impinge upon the flat-surfaced upper end of the pointed member 1.
The tension member 3 consists of a helical spring made of roundwire with its respective spirals normally in contact and connected at its respective ends to the pointed member 1 and the impact member 2 by screwing the threaded portions 5 and 10 into the ends of the helix. By making the diameter of the threaded portions slightly larger than the internal diameter of the helix a secure connection may be obtained, or when it is desired they may be brazed together.
In using the pricke punch the pointed member 1 is held in engagement with the work with one hand, while the impact member 2 is raised by the other hand against the tension of the spring 3 to a height according to the impression it is desired to make in the work and released, whereupon the spring causes the member 2 to descend with the requisite force, and being accurately guided by the telescopic action of spindle 12 in en gagement with the side walls of the bore 8 the shoulder 13 is caused to impinge upon the flat upper end of the pointed member 1 with the desired impact.
I do not desire to restrict myself to the particular form or arrangement of parts herein described and shown, since it is apparent that they may be changed and modified without departing from my invention.
What I claim as new, and desire to secure by Letters Patent of the United States, is
1. A self-impacting tool consisting of a pointed member, an impact member, telescopic means carried by said members for guiding the latter member relatively to the former, and a tension member connecting the other members. 1
2. A self-impacting tool consisting of a pointed member provided at one end with an axial bore, an impact member provided at one end with a guide-spindle adapted to enter said bore, and a helical spring connecting said members.
3. A self-impacting tool consisting of a pointed member provided at one end with an impact surface and an axial bore, an impact member provided at one end. with an impactshoulder and a guide-spindle adapted to enter said bore, and a helical spring surrounding and connected to the end portions of said members.
In witness whereof I have hereunto set my hand this 21st day of April, 1905.
HENRY GEISENHONER.
Witnesses:
HELEN ORFORD, G. O. HOLLISTER.
US25696405A 1905-04-22 1905-04-22 Hand-tool. Expired - Lifetime US833712A (en)

Priority Applications (1)

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US25696405A US833712A (en) 1905-04-22 1905-04-22 Hand-tool.

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US25696405A US833712A (en) 1905-04-22 1905-04-22 Hand-tool.

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446848A (en) * 1946-11-26 1948-08-10 Prester Arthur Punch
US5307741A (en) * 1993-06-15 1994-05-03 Spring Line, Inc. Impact hand stamping device
WO1994023861A1 (en) * 1993-04-13 1994-10-27 Spring Line, Inc. Combination center punch and prick punch
US5433007A (en) * 1993-09-01 1995-07-18 Spring Line, Inc. Self-centering impact hand tool
US20050211452A1 (en) * 2004-03-24 2005-09-29 A Major Corporation Spring powered hand tool
US20070293871A1 (en) * 2006-04-13 2007-12-20 Andrew Ackermann Osteotome and components thereof
US20160158928A1 (en) * 2014-12-05 2016-06-09 Jared Scott Jones Self-Contained Force Magnifying Chisel
US20180236648A1 (en) * 2014-12-05 2018-08-23 Jared Scott Jones Self-contained force magnifying chisel
US20180289377A1 (en) * 2017-04-06 2018-10-11 Emory Clark Hand-held spring tool
US11234712B2 (en) 2019-10-25 2022-02-01 Warsaw Orthopedic, Inc. Medical access device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446848A (en) * 1946-11-26 1948-08-10 Prester Arthur Punch
WO1994023861A1 (en) * 1993-04-13 1994-10-27 Spring Line, Inc. Combination center punch and prick punch
US5426858A (en) * 1993-04-13 1995-06-27 Spring Line, Inc. Combination center punch and prick punch
US5307741A (en) * 1993-06-15 1994-05-03 Spring Line, Inc. Impact hand stamping device
US5433007A (en) * 1993-09-01 1995-07-18 Spring Line, Inc. Self-centering impact hand tool
US20050211452A1 (en) * 2004-03-24 2005-09-29 A Major Corporation Spring powered hand tool
US20070293871A1 (en) * 2006-04-13 2007-12-20 Andrew Ackermann Osteotome and components thereof
US20160158928A1 (en) * 2014-12-05 2016-06-09 Jared Scott Jones Self-Contained Force Magnifying Chisel
US9975231B2 (en) * 2014-12-05 2018-05-22 Jared Scott Jones Self-contained force magnifying chisel
US20180236648A1 (en) * 2014-12-05 2018-08-23 Jared Scott Jones Self-contained force magnifying chisel
US10654157B2 (en) * 2014-12-05 2020-05-19 Jared Scott Jones Self-contained force magnifying chisel
US20180289377A1 (en) * 2017-04-06 2018-10-11 Emory Clark Hand-held spring tool
US10524804B2 (en) * 2017-04-06 2020-01-07 Stryker Tools, LLC. Hand-held spring tool
US11234712B2 (en) 2019-10-25 2022-02-01 Warsaw Orthopedic, Inc. Medical access device
US11737764B2 (en) 2019-10-25 2023-08-29 Warsaw Orthopedic, Inc. Medical access device

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