US1243107A - Clamp. - Google Patents

Clamp. Download PDF

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Publication number
US1243107A
US1243107A US13467116A US13467116A US1243107A US 1243107 A US1243107 A US 1243107A US 13467116 A US13467116 A US 13467116A US 13467116 A US13467116 A US 13467116A US 1243107 A US1243107 A US 1243107A
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United States
Prior art keywords
dog
cord
frame
abutment
bearing
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
US13467116A
Inventor
William A Richardson
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.)
RICHWIN MANUFACTURING Co
Original Assignee
RICHWIN Manufacturing Co
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 RICHWIN Manufacturing Co filed Critical RICHWIN Manufacturing Co
Priority to US13467116A priority Critical patent/US1243107A/en
Application granted granted Critical
Publication of US1243107A publication Critical patent/US1243107A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/39Cord and rope holders
    • Y10T24/3936Pivoted part
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/39Cord and rope holders
    • Y10T24/3936Pivoted part
    • Y10T24/394Cam lever

Definitions

  • My invention consists of an improvement in clamping devices for tightly holding a flexible element as a strap, rope or cord, and comprising a frame carrying a locking element adapted to co-act with a bearing portion of the frame and embodying a pulley or sheave-wheel, with other features of construction as more fully hereinafter described.
  • the device is designed to provide for easy slippage of a rope or cord and for efliciently holding it at any desired position in its movement through the frame.
  • Figure 1 is a face View of the device in elevation.
  • Fig. 2 is a vertical sectional view, indicated by the line II, II of Fig. 1.
  • Fig. 3 is a cross-sectional view, indicated by the line III, III of Fig. 1.
  • the main frame or base portion of the device is preferably formed of plate metal, providing a main back portion 2, the central end portion of which is bent upwardly and outwardly as indicated at 3, 4, to provide a pivotal mounting or housing portion for the locking or clamping dog 5.
  • Said dog which is cam-like in construction, is provided with an outer preferably grooved gripping face of gradually increasing radius from its pivotal center, and is pivotally mounted on a riveted pin 6, constituting a freely acting bearing for the dog.
  • the main frame 2 is provided with a bearing lug 7 at one side opposite the gripping dog, bent forwardly from the main back as indicated, whereby to provide a ri id substantial hearing for the cord opposing the dog in its gripping action.
  • a flange keeper 8 is similarly bent forward and curved inwardly, as indicated in Fig. 3, providing an embracing and guiding housing for the cord 9, at the other side.
  • a pulley or sheave-wheel 10 is pivotally mounted on a stud 11, extending forwardly from the main back and centrally of the device, whereby to arrange its peripheral groove in alinement with the general direction of cord 7, so that the cord may freely pass around with the sheave in either direction.
  • the special advantage of the sheavewheel is in reducing friction and giving an easy traveling pathway for the cord, thus facilitating its ready adjustment.
  • frame 2 is provided with an eye 12, adapting the frame to attachment at any desired position against a supporting surface by means of a staple 13, or eye 12 may be connected with any other suitable or preferred holding device.
  • eye 12 adapting the frame to attachment at any desired position against a supporting surface by means of a staple 13, or eye 12 may be connected with any other suitable or preferred holding device.
  • the front of the device is open, so that its application to the cord, or of the cord to the clamp, is easily and quickly made.
  • cord 9 is introduced between dog 5 and abutment 7 and passed around the sheave wheel 10 and its free end inserted behind the guiding flange 8, assuming the tightening of the cord to be against a reverse pulling action.
  • the dog 5 is brought into binding engagement against the cord and when the free portion of the cord is drawn in the direction of the arrow a, its tension in the opposite direction tends to cause the dog 5 to grip against it more tightly, in proportion to the strain.
  • the dog will continue to hold or bind against the cord, until released by a momentary reverse strain on the free end of the cord, when it will either fall away of gravity, in the position shown in Fig. 1, or may be thrust outwardly by the finger.
  • the dog 5 is preferably grooved lengthwise of its gpipping face, preferably in the form of a -shaped groove, having cross ridges or teeth, as indicated at 14.
  • a frame provided with a bearing abutment at one side, a flanged guide on the opposite side, a pivotally mounted cam-like dog arranged to bind by rotation toward said abutment, and a. guiding sheave-wheel pivotally mounted in the frame beyond said members.
  • a clamping device consisting of a frame having a lateral bearing abutment, a supporting arm extending upwardly from the base of said frame, a locking dog pivotally mounted between said arm and said frame and adapted to cooperate With said bearing abutment, a cord guard beyond said locking dog and opposite said bearing abutment, and a pivotally mounted sheave Wheel above said locking dog.
  • a clamping device consisting of a frame having a lateral bearing abutment, a locking dog pi 'oted adjacent thereto having an eccentric gripping face, a cord guard beyond said locking dog, and a pivotally mounted sheave wheel, said frame having a portion adapting it to connection with a holding element.
  • a frame of plate metal having at one end a bent over portion providing a pivotal mounting, a cam-like locking dog pivoted therein, a bent up abutment portion providing a cord bearing opposite the dog, a bent up guiding lug at the other side of the dog, and a pivot-ally mounted sheave wheel located beyond the. dog for engagement with a cord passing between the dog and said bearing abutment.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Clamps And Clips (AREA)
  • Emergency Lowering Means (AREA)

Description

W. A. RICHARDSON,
CLAMP.
APPLICAHON men DEC. 2. 1916.
1,243,107. Patented Oct. 16,1917.
WITNESSES UNITED STATES PATENT OFFICE.
WILLIAM A. RICHARDSON, OF EDWARDSVILLE, ILLINOIS, ASSIGNOR TO BICH'WIN' MANUFAGTURIN G COMPANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS.
CLAMP.
Specification of Letters Patent.
Patented Oct. 16, 1917.
Application filed December 2, 1918. Serial lio. 134,671.
To all whom it may concern:
Be it known that 1, WILLIAM A. RIGHARD- SON, a citizen of the United States, residing at Edwardsville, in the county of Madison and State of Illinois, have invented certain new and useful Improvements in Clamps, of which the following is a specification.
My invention consists of an improvement in clamping devices for tightly holding a flexible element as a strap, rope or cord, and comprising a frame carrying a locking element adapted to co-act with a bearing portion of the frame and embodying a pulley or sheave-wheel, with other features of construction as more fully hereinafter described.
The device is designed to provide for easy slippage of a rope or cord and for efliciently holding it at any desired position in its movement through the frame.
Referring to the drawings, showing one preferred construction Figure 1 is a face View of the device in elevation.
Fig. 2 is a vertical sectional view, indicated by the line II, II of Fig. 1.
Fig. 3 is a cross-sectional view, indicated by the line III, III of Fig. 1.
The main frame or base portion of the device is preferably formed of plate metal, providing a main back portion 2, the central end portion of which is bent upwardly and outwardly as indicated at 3, 4, to provide a pivotal mounting or housing portion for the locking or clamping dog 5. Said dog, which is cam-like in construction, is provided with an outer preferably grooved gripping face of gradually increasing radius from its pivotal center, and is pivotally mounted on a riveted pin 6, constituting a freely acting bearing for the dog. The main frame 2 is provided with a bearing lug 7 at one side opposite the gripping dog, bent forwardly from the main back as indicated, whereby to provide a ri id substantial hearing for the cord opposing the dog in its gripping action.
At the other side, a flange keeper 8 is similarly bent forward and curved inwardly, as indicated in Fig. 3, providing an embracing and guiding housing for the cord 9, at the other side.
A pulley or sheave-wheel 10, is pivotally mounted on a stud 11, extending forwardly from the main back and centrally of the device, whereby to arrange its peripheral groove in alinement with the general direction of cord 7, so that the cord may freely pass around with the sheave in either direction. The special advantage of the sheavewheel is in reducing friction and giving an easy traveling pathway for the cord, thus facilitating its ready adjustment.
At the opposite end, frame 2 is provided with an eye 12, adapting the frame to attachment at any desired position against a supporting surface by means of a staple 13, or eye 12 may be connected with any other suitable or preferred holding device. As shown, the front of the device is open, so that its application to the cord, or of the cord to the clamp, is easily and quickly made.
In operation, cord 9 is introduced between dog 5 and abutment 7 and passed around the sheave wheel 10 and its free end inserted behind the guiding flange 8, assuming the tightening of the cord to be against a reverse pulling action. The dog 5 is brought into binding engagement against the cord and when the free portion of the cord is drawn in the direction of the arrow a, its tension in the opposite direction tends to cause the dog 5 to grip against it more tightly, in proportion to the strain. The dog will continue to hold or bind against the cord, until released by a momentary reverse strain on the free end of the cord, when it will either fall away of gravity, in the position shown in Fig. 1, or may be thrust outwardly by the finger.
The dog 5 is preferably grooved lengthwise of its gpipping face, preferably in the form of a -shaped groove, having cross ridges or teeth, as indicated at 14.
The construction and operation of the invention will be readily understood and appreciated from the foregoing description by all those accustomed to use devices for bind ing or holding ropes, cords, etc- It is comparatively simple and cheap, very effective in action, and is adapted to a wide variety of uses.
Having described my invention, what I claim is 1. In a holding device of the class described, a frame provided with a bearing abutment at one side, a flanged guide on the opposite side, a pivotally mounted cam-like dog arranged to bind by rotation toward said abutment, and a. guiding sheave-wheel pivotally mounted in the frame beyond said members.
2. A clamping device consisting of a frame having a lateral bearing abutment, a supporting arm extending upwardly from the base of said frame, a locking dog pivotally mounted between said arm and said frame and adapted to cooperate With said bearing abutment, a cord guard beyond said locking dog and opposite said bearing abutment, and a pivotally mounted sheave Wheel above said locking dog.
3. A clamping device consisting of a frame having a lateral bearing abutment, a locking dog pi 'oted adjacent thereto having an eccentric gripping face, a cord guard beyond said locking dog, and a pivotally mounted sheave wheel, said frame having a portion adapting it to connection with a holding element.
4. In combination, a frame of plate metal having at one end a bent over portion providing a pivotal mounting, a cam-like locking dog pivoted therein, a bent up abutment portion providing a cord bearing opposite the dog, a bent up guiding lug at the other side of the dog, and a pivot-ally mounted sheave wheel located beyond the. dog for engagement with a cord passing between the dog and said bearing abutment.
In testimony whereof I hereunto afiix my signature.
WILLIAM A. RICHARDSON.
US13467116A 1916-12-02 1916-12-02 Clamp. Expired - Lifetime US1243107A (en)

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US13467116A US1243107A (en) 1916-12-02 1916-12-02 Clamp.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508759A (en) * 1947-06-21 1950-05-23 Jr John Paul Jones Clothesline fastener and tightener
US2531216A (en) * 1948-08-02 1950-11-21 Burton L Haver Adjusting or controlling device
US5530991A (en) * 1994-01-21 1996-07-02 Caldwell Manufacturing Company Block and tackle window balance
US6182946B1 (en) 1999-05-17 2001-02-06 Darin Rutherford Tree stand hoist assembly and casing therefor having identical mating halves
US20060128531A1 (en) * 2002-08-30 2006-06-15 Tore Planke Training apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508759A (en) * 1947-06-21 1950-05-23 Jr John Paul Jones Clothesline fastener and tightener
US2531216A (en) * 1948-08-02 1950-11-21 Burton L Haver Adjusting or controlling device
US5530991A (en) * 1994-01-21 1996-07-02 Caldwell Manufacturing Company Block and tackle window balance
US6182946B1 (en) 1999-05-17 2001-02-06 Darin Rutherford Tree stand hoist assembly and casing therefor having identical mating halves
US20060128531A1 (en) * 2002-08-30 2006-06-15 Tore Planke Training apparatus
US7381173B2 (en) * 2002-08-30 2008-06-03 Nordisk Terapi As Training apparatus
EP1539303B1 (en) * 2002-08-30 2011-12-28 Redcord AS Training apparatus

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