US907464A - Tension device for shears. - Google Patents

Tension device for shears. Download PDF

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Publication number
US907464A
US907464A US44884508A US1908448845A US907464A US 907464 A US907464 A US 907464A US 44884508 A US44884508 A US 44884508A US 1908448845 A US1908448845 A US 1908448845A US 907464 A US907464 A US 907464A
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United States
Prior art keywords
shears
blades
tension device
eye
spring
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Expired - Lifetime
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US44884508A
Inventor
John J Conway
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.)
Acme Shear Co
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Acme Shear Co
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Filing date
Publication date
Application filed by Acme Shear Co filed Critical Acme Shear Co
Priority to US44884508A priority Critical patent/US907464A/en
Application granted granted Critical
Publication of US907464A publication Critical patent/US907464A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/28—Joints
    • B26B13/285—Joints with means for applying pressure on the blades; with means for producing "drawing-cut" effect

Definitions

  • Tension Device for Shears of which the following is a specication
  • This invention has for its object to provide a simple and inexpensive adjustable tension device lior shears that will enable the Operator to provide atwill any required amount of tension upon the blades that may be required to adapt them for various uses and to compensate for the Wear of use.
  • Figure 1 is a plan view of a pair of shears rovided withmy novel tension device
  • ig. 2 is an with.
  • 10 and 11 denote Ythe blades of a pair of edge view corresponding there- Shears, and 1? the pivot which passes freely through both blades and is provided upon oneend with a head 13.
  • the pivot is made longer than the combined thickness of-the blades and instead of being headed down in the usual manner projects outward i'rom the Outer face of the blade forming a hub which is specifically indicated by 15.
  • This hub is provided with a transverse hole 16 lwhich receives the end of the spring, indicated by 17.
  • the spring is curved to form a bearing 18 which rests upon the outer face of one of the blades and is provided at its other end with an eye 19 through which-a threaded rod 2G passes.
  • the inner end of this rod is firmly set in one of the blades.
  • a set nut 21 engaging this roll. bears upon the outer face of the eye.

Description

J. J. CONWAY.
TENSION DEVICE FOR SHEARS.
APPLIGATION FILED AUG. 17, 190s.
997,464. v Patented 1380.22, 1908.
UNITED STATES 'PATENT OFFICE,
JOHN .'r. CONwY, or BRIDGEPORT, CONNECTICUT, AssieNoR To THE ACME snnAR COMPANY, or BRTDGEPORT, CONNECTICUT,A A CORPORATION or CONNECTICUT,
TENSION DEVICE FR SHIEARS.
Specification of .Letters :Pate-nt.
Patented Dec. 22, 1908.
` Application filed Augnst 17, 1958. Serial No. @$8,845.
Tension Device for Shears, of which the following is a specication This invention has for its object to provide a simple and inexpensive adjustable tension device lior shears that will enable the Operator to provide atwill any required amount of tension upon the blades that may be required to adapt them for various uses and to compensate for the Wear of use.
With these and other objects in view I have devised the novel tension device of which the following description in connection with the accompanying drawing isa specication, reference characters being used to indicate the.v several parts.
Figure 1 is a plan view of a pair of shears rovided withmy novel tension device; and
ig. 2 is an with.
10 and 11 denote Ythe blades of a pair of edge view corresponding there- Shears, and 1? the pivot which passes freely through both blades and is provided upon oneend with a head 13. The pivot is made longer than the combined thickness of-the blades and instead of being headed down in the usual manner projects outward i'rom the Outer face of the blade forming a hub which is specifically indicated by 15. This hub is provided with a transverse hole 16 lwhich receives the end of the spring, indicated by 17.
The spring is curved to form a bearing 18 which rests upon the outer face of one of the blades and is provided at its other end with an eye 19 through which-a threaded rod 2G passes. The inner end of this rod is firmly set in one of the blades. l A set nut 21 engaging this roll. bears upon the outer face of the eye. By turning the set nut inward Or outward on the rod, the operator is enabled to apply any required amount of tension to the blades, it being obvious that tightening the set Yiut will cause the blades to be clamped more or less tightly between the bearing portion of the spring and the head the pivot, which asv already stated pasi.-...\ freely through both blades.
Having thus described my invention, claim: l.
The combination with the blades of shear of a stud passing `freely through both bla and having at one end a head, the other end extending beyond the outer face of one of the blades and provided with a transverse hole, a spring one end of which passes through the hole in the hub the other end being provided with an eye and said spring being provided intermediate its ends with a bearing portion engaging the blade, a threaded rod lixedly set in the blade and passing through the eye, and a set nut engaging said rod and bearing on the outer face of the eye.
In testimony whereof I ad my signature',- in presence of two witnesses.
JOHN J. CONWAY. Witnesses:
A. M. WoosTER, S. W. ATHERTON.
US44884508A 1908-08-17 1908-08-17 Tension device for shears. Expired - Lifetime US907464A (en)

Priority Applications (1)

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US44884508A US907464A (en) 1908-08-17 1908-08-17 Tension device for shears.

Applications Claiming Priority (1)

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US44884508A US907464A (en) 1908-08-17 1908-08-17 Tension device for shears.

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US44884508A Expired - Lifetime US907464A (en) 1908-08-17 1908-08-17 Tension device for shears.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696045A (en) * 1952-12-05 1954-12-07 Fred D Blodgett Tension adjusted scissors
US5498095A (en) * 1994-05-19 1996-03-12 Snap-On Incorporated Press fitted flexural pivot joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696045A (en) * 1952-12-05 1954-12-07 Fred D Blodgett Tension adjusted scissors
US5498095A (en) * 1994-05-19 1996-03-12 Snap-On Incorporated Press fitted flexural pivot joint

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