US1930177A - Carpenter's clamp - Google Patents

Carpenter's clamp Download PDF

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Publication number
US1930177A
US1930177A US574522A US57452231A US1930177A US 1930177 A US1930177 A US 1930177A US 574522 A US574522 A US 574522A US 57452231 A US57452231 A US 57452231A US 1930177 A US1930177 A US 1930177A
Authority
US
United States
Prior art keywords
bar
jaw
clamp
pawl
perforations
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
US574522A
Inventor
Charles F Miller
John C Kuckhoff
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.)
Syracuse Stamping Co Inc
Original Assignee
Syracuse Stamping Co Inc
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 Syracuse Stamping Co Inc filed Critical Syracuse Stamping Co Inc
Priority to US574522A priority Critical patent/US1930177A/en
Application granted granted Critical
Publication of US1930177A publication Critical patent/US1930177A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/102—Arrangements for positively actuating jaws using screws with at least one jaw sliding along a bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/166—Slideways; Guiding and/or blocking means for jaws thereon
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32114—Articulated members including static joint
    • Y10T403/32131—One member is plate or side

Definitions

  • This invention relates to clamps such as carpenters and cabinet makers clamps and has for its object a clamp which is particularly economical and strong in construction and especially a clamp in which the shiftable jaw can be quickly moved along the bar of a clamp to any one of a number of positions and firmly held against retrograde
  • This clamp comprises generally an I-bar 1 havv ing perforations 2 along the median line of the web thereof, a shiftable jaw 3 slidable along the bar and a feed screw operated jaw 4 slidable along the bar toward and from the former jaw.
  • the perforations 2 are preferably rectangular primarily for the purpose of providing a comparatively wide and straight thrust surface for the pawl to be described of the movable jaw 3 so as to avoid tearing or mangling of the web of the bar which is made as light as consistently possible.
  • the movable jaw 3 is provided with a body portion 5 formed with a passage 6 for receiving the I-bar 1, the walls of the passage sliding close to the outer face of the web of the I-bar.
  • a spring pressed pawl carried on one side of the body portion 5 and pivoted at 8 thereto, the pawl being angular in general form and pivoted at its angle, one arm constituting a finger lever extending along the body portion 5 and the other arm extendinginwardly at an angle to the bar through an opening 9 in the body portion 5 and having a nose 10 for entering into any one of the perforations 2.
  • the nose of the pawl is straight or square at one end of the lever for thrusting squarely against the square rear sides of the perforations 2 for holding the jaw 3 from retrograde movement when once set in position.
  • the pawl and the body 5 are provided with coacting shoulders arranged to come into engagement when the nose of the pawl enters one of the perforations 2 and as here shown the pawl '7 is provided with a shoulder 13 located between the pivot 8 and the nose 10 and coacting with a shoulder 14 on the body 5.
  • the pawl is pressed intothe openings 2 by a spring 15.
  • the jaw 4 is operated by a suitable feed screw 16 threading in a block or bearing 17 mounted on one end of the bar 1, the screw having a crank 18,
  • crank having an arm 19 extending beyond the screw or to the opposite side of the screw to that on which the crank is located so that when the jaw 4 is tightened against the work by turning the crank 18, it can be finally tightened by shifting the hand on the crank 18 so that the thumb can be utilized to press against the arm 19.
  • the thrust is applied directly along the median plane of the bar 1 and not at one side thereof, as when teeth are formed on one side of the bar, and owing to the square nose of the pawl and the square perforations, the thrust is in a straight line and distributed over a comparatively large surface compared with round perforations.
  • a carpenters clamp comprising an I bar formed with a row of perforations extending entirely through the web thereoflthe web having plain opposite side faces, a shiftable jaw slidable on the bar and having a passage through which the bar extends, the walls of the passage slidably engaging the opposite plain sides of the web of the bar, a feed screw operated jaw slidably mounted on the bar and movable toward and from the former jaw and a pawl carried by the former jaw on one side thereof and having a nose for entering said perforations and extending entirely through the same between the walls of said passage.

Description

Oct. 10, 1933. c; M|| LER r AL 1,930,177
CARPENTERS CLAMP Filed NOV. 12, 1931 Eh I IN NTOR CHARL E M/LLE/P & JOHN CJfl/CAHUFF ATTORNEYS Patented Oct. 10, 1933 UNITED STATES PATENT OFFICE CARPENTERS CLAMP Application November 12, 1931 Serial No. 574,522
1 Claim.
This invention relates to clamps such as carpenters and cabinet makers clamps and has for its object a clamp which is particularly economical and strong in construction and especially a clamp in which the shiftable jaw can be quickly moved along the bar of a clamp to any one of a number of positions and firmly held against retrograde This clamp comprises generally an I-bar 1 havv ing perforations 2 along the median line of the web thereof, a shiftable jaw 3 slidable along the bar and a feed screw operated jaw 4 slidable along the bar toward and from the former jaw. The perforations 2 are preferably rectangular primarily for the purpose of providing a comparatively wide and straight thrust surface for the pawl to be described of the movable jaw 3 so as to avoid tearing or mangling of the web of the bar which is made as light as consistently possible.- The movable jaw 3 is provided with a body portion 5 formed with a passage 6 for receiving the I-bar 1, the walls of the passage sliding close to the outer face of the web of the I-bar.
7 is a spring pressed pawl carried on one side of the body portion 5 and pivoted at 8 thereto, the pawl being angular in general form and pivoted at its angle, one arm constituting a finger lever extending along the body portion 5 and the other arm extendinginwardly at an angle to the bar through an opening 9 in the body portion 5 and having a nose 10 for entering into any one of the perforations 2. The nose of the pawl is straight or square at one end of the lever for thrusting squarely against the square rear sides of the perforations 2 for holding the jaw 3 from retrograde movement when once set in position. The
opposite side of the pawl is provided with an inclined or ratcheting surface 12 which coacts with the front sides of the perforations when the jaw 3 is being slide forwardly toward the jaw 4.
In order to relieve the pivot 8 of the pawl from thrust, the pawl and the body 5 are provided with coacting shoulders arranged to come into engagement when the nose of the pawl enters one of the perforations 2 and as here shown the pawl '7 is provided with a shoulder 13 located between the pivot 8 and the nose 10 and coacting with a shoulder 14 on the body 5. The pawl is pressed intothe openings 2 by a spring 15.
The jaw 4 is operated by a suitable feed screw 16 threading in a block or bearing 17 mounted on one end of the bar 1, the screw having a crank 18,
the crank having an arm 19 extending beyond the screw or to the opposite side of the screw to that on which the crank is located so that when the jaw 4 is tightened against the work by turning the crank 18, it can be finally tightened by shifting the hand on the crank 18 so that the thumb can be utilized to press against the arm 19.
It will be understood that after the clamp has been initially tightened, further turning of the crank for final tightening exerts a leverage on the work rather than a tightening effect on the screw. By reason of the arm 19, the screw can be finally tightened without exerting a leverage on the work or without tending to turn the entire clamp and the work as a unit.
Owing to the perforations 2 and the arrangement of the pawl, the thrust is applied directly along the median plane of the bar 1 and not at one side thereof, as when teeth are formed on one side of the bar, and owing to the square nose of the pawl and the square perforations, the thrust is in a straight line and distributed over a comparatively large surface compared with round perforations.
What we claim is:
A carpenters clamp comprising an I bar formed with a row of perforations extending entirely through the web thereoflthe web having plain opposite side faces, a shiftable jaw slidable on the bar and having a passage through which the bar extends, the walls of the passage slidably engaging the opposite plain sides of the web of the bar, a feed screw operated jaw slidably mounted on the bar and movable toward and from the former jaw and a pawl carried by the former jaw on one side thereof and having a nose for entering said perforations and extending entirely through the same between the walls of said passage.
CHARLES F. MILLER.
JOHN C. KUCKHOFF.
US574522A 1931-11-12 1931-11-12 Carpenter's clamp Expired - Lifetime US1930177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US574522A US1930177A (en) 1931-11-12 1931-11-12 Carpenter's clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US574522A US1930177A (en) 1931-11-12 1931-11-12 Carpenter's clamp

Publications (1)

Publication Number Publication Date
US1930177A true US1930177A (en) 1933-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US574522A Expired - Lifetime US1930177A (en) 1931-11-12 1931-11-12 Carpenter's clamp

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US (1) US1930177A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685310A (en) * 1952-03-15 1954-08-03 Clarence C Lang Extensible clamp
US2693153A (en) * 1948-07-01 1954-11-02 Evans Prod Co Loading mechanism
US2841196A (en) * 1955-10-28 1958-07-01 Zazdrzyk Edward Toggle lever actuated sliding jaw vise
US5722649A (en) * 1996-09-26 1998-03-03 Morris; Milton I. Adjustable Clamp
EP0894575A2 (en) * 1997-07-29 1999-02-03 Kleinbongartz & Kaiser Clamp
US6202997B1 (en) * 1998-02-02 2001-03-20 Yasuda Seisakusho Co., Ltd. Work device and its moveable claw
US6292997B1 (en) * 1999-05-28 2001-09-25 Robert Ollendick Pre-plating of wooden railroad ties
GB2451432A (en) * 2007-07-27 2009-02-04 Lionel Keith Daniels Locking device for a sliding shoe of a bar clamp
US20140265084A1 (en) * 2013-03-15 2014-09-18 Techtronic Power Tools Technology Limited Clamping and spreading tool
FR3073238A1 (en) * 2017-11-06 2019-05-10 Soletanche Freyssinet ACCESSORY TO FACILITATE RECONCILIATION OF TWO FRAMES

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693153A (en) * 1948-07-01 1954-11-02 Evans Prod Co Loading mechanism
US2685310A (en) * 1952-03-15 1954-08-03 Clarence C Lang Extensible clamp
US2841196A (en) * 1955-10-28 1958-07-01 Zazdrzyk Edward Toggle lever actuated sliding jaw vise
US5722649A (en) * 1996-09-26 1998-03-03 Morris; Milton I. Adjustable Clamp
EP0894575A3 (en) * 1997-07-29 2000-10-04 Kleinbongartz & Kaiser Clamp
US6123326A (en) * 1997-07-29 2000-09-26 Kleinbongartz & Kaiser Clamping tool
EP0894575A2 (en) * 1997-07-29 1999-02-03 Kleinbongartz & Kaiser Clamp
US6202997B1 (en) * 1998-02-02 2001-03-20 Yasuda Seisakusho Co., Ltd. Work device and its moveable claw
US6292997B1 (en) * 1999-05-28 2001-09-25 Robert Ollendick Pre-plating of wooden railroad ties
US6546612B2 (en) * 1999-05-28 2003-04-15 Robert Ollendick Pre-plating of wooden railroad ties
US6681474B2 (en) * 1999-05-28 2004-01-27 Robert Ollendick Pre-plating of wooden railroad ties
GB2451432A (en) * 2007-07-27 2009-02-04 Lionel Keith Daniels Locking device for a sliding shoe of a bar clamp
US20140265084A1 (en) * 2013-03-15 2014-09-18 Techtronic Power Tools Technology Limited Clamping and spreading tool
US9751193B2 (en) * 2013-03-15 2017-09-05 Milwaukee Electric Tool Corporation Clamping and spreading tool
FR3073238A1 (en) * 2017-11-06 2019-05-10 Soletanche Freyssinet ACCESSORY TO FACILITATE RECONCILIATION OF TWO FRAMES

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