US737404A - Clamp. - Google Patents

Clamp. Download PDF

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Publication number
US737404A
US737404A US14311703A US1903143117A US737404A US 737404 A US737404 A US 737404A US 14311703 A US14311703 A US 14311703A US 1903143117 A US1903143117 A US 1903143117A US 737404 A US737404 A US 737404A
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United States
Prior art keywords
clamp
levers
ring
packing
secured
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
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US14311703A
Inventor
William T Harrison
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Individual
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Individual
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Priority to US14311703A priority Critical patent/US737404A/en
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Publication of US737404A publication Critical patent/US737404A/en
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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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/52—Chain or strap wrenches
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/14—Bale and package ties, hose clamps
    • Y10T24/1412—Bale and package ties, hose clamps with tighteners
    • Y10T24/1441—Tangential screw

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Description

No. 737,404. y PATENTED AUG. 25, 1903*..
- W?. T. HARRISON.
CLAMP.
APPLIOATION FILED FEB. l2. 1903.
N0 MODEL.
www
i Unirse STATES Patented August 25, 1903.
Parent OFFICE.
CLAMP.
SPECIFICATION forming part of Letters Patent No. 737,404, dated August 25, 1903. Application filed February l2?, 1903. Serial No. 143,117, (No model.)
and useful lmprovementsin Clamps,of which the following is a specification.
My present invention pertains to improve ments in clamps designed more especially for holding packing-rings preparatory to their being placed in a lathe.
The invention will be best understood upon reference to the accompanying drawings,A wherein- Figure 1 is a side elevation of the clamp, and Fig. 2 a top plan or edge view thereof.
The object of my. invention is to provide a suitable clamp in which a packing-ring may be properly held as it is inserted into the chuck of a lathe preparatory to turning the same.
After a packing-ring has beenturned to a diameter slightly greater than that of the cylnder in which it is designed to Work a gap is cut in the same. The ring is then placed within the clamp shown in the accompanying drawings and the ends drawn together, so that the gap is closed. The clamp being exible allows the packing-ring to retain its natural shape, which is slightly ellipticalor oblong, the greatest diameter being through the gap. The packing-ring thus held by the clamp in its natural shape is securedv in a chuck, after which the clamp is removed and the ring returned. After returning to the diameter of the cylinder the periphery of the packing-ring will of course be a true circle, with the gap closed.
Referring to the drawings,A denotes anexible band or strap, formed of flat spring-steel, wire, or other suitable material, the ends thereof-being secured to the jaws or levers B E by rivets or in any other suitable manner. The jaws are normally held in their proper relation by a spring O. A pivotal fulcrum-block D is placed between the jaws near their outer ends, and a bolt E is secured to one jaw and {passes through an opening in the opposite jaw, a nut F being mounted 5o upon the outwardly-extending end thereof.
It is obvious, of course, that the construction of the clamp may be varied without departing from the spirit 'of my invention--for instance, the jaws or levers B B and the spring O might be made as one integral structure, thus dispensing with the pivotal fulcru'm-block.
The use of the device is apparent from the foregoing description and explanation. f
By employing a clamp constructed in ac cordauce with my invention a ring is allowed to takeits natural spring upon being closed preparatory to re-turuing. When closed in this manner and turned to the exact diameter of the cylinder in which it is to work, a perfect t is secured at the start, which is not the case when the ordinary method of n1anufactoring packing-rings is employed.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-
1. In a device of the character, described, the combination of a flexible band or strap; a pair o f levers secured to the ends thereof; a pivot for said levers intermediate their ends; a spring for rocking said levers about their' pivotal point or fulcrurn and normally expanding the band or strap; and means for drawing said levers together, whereby thel diameter of the circle described by the band or strap may be reduced, substantially as and for the purpose set forth. l
2. In a device of the character described, the combination of a flexible band or strap; a pair of levers 13,13 secured to the ends thereof; apivot or fulcruin block I) mounted intermediate the levers near their outer ends; a spring C acting upon the outer ends of the levers and tending to force the opposite ends apart; a bolt secured to one of said levers and passing loosely through the other; and a nut mounted upon the outer end of said bolt, su bstantiallyas and for the purpose set forth.
In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.
- NVILLIAM T. HARRISON. Witnesses:
H. W. COFFIN,
l. G. AUL'r.
tio
US14311703A 1903-02-12 1903-02-12 Clamp. Expired - Lifetime US737404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14311703A US737404A (en) 1903-02-12 1903-02-12 Clamp.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14311703A US737404A (en) 1903-02-12 1903-02-12 Clamp.

Publications (1)

Publication Number Publication Date
US737404A true US737404A (en) 1903-08-25

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Family Applications (1)

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US14311703A Expired - Lifetime US737404A (en) 1903-02-12 1903-02-12 Clamp.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834086A (en) * 1954-03-22 1958-05-13 Smith Blair Inc Pipe clamp or coupling and lug members therefor
US3724367A (en) * 1970-10-01 1973-04-03 Burroughs Corp Print drum clamp
US5065648A (en) * 1990-12-07 1991-11-19 Hocfbaum Jr Gerald E Oil filter wrench
US5533717A (en) * 1994-07-05 1996-07-09 Del Raso; Americo Adjustable clamping strap
US6520052B1 (en) 1998-10-16 2003-02-18 Great Neck Saw Manufacturers, Inc. Oil filter wrench

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834086A (en) * 1954-03-22 1958-05-13 Smith Blair Inc Pipe clamp or coupling and lug members therefor
US3724367A (en) * 1970-10-01 1973-04-03 Burroughs Corp Print drum clamp
US5065648A (en) * 1990-12-07 1991-11-19 Hocfbaum Jr Gerald E Oil filter wrench
US5533717A (en) * 1994-07-05 1996-07-09 Del Raso; Americo Adjustable clamping strap
US6520052B1 (en) 1998-10-16 2003-02-18 Great Neck Saw Manufacturers, Inc. Oil filter wrench

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