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Publication numberUS544268 A
Publication typeGrant
Publication dateAug 6, 1895
Filing dateFeb 9, 1796
Publication numberUS 544268 A, US 544268A, US-A-544268, US544268 A, US544268A
InventorsPeter Unsinger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bulb or tube stretcher or expander
US 544268 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

(Ho IIodeL) P. UNSINGER & G. HANNES.

BULB 0R TUBE STRETCHER 0R BXPANDER.

No. 544,268. Patented Aug. 6,1895.

UNITED STATES PATENT OFFICE.

PETER UNSINGER AND GEORGE IIANNES, OF FREMONT, OHIO.

BULB OR TUBE'STRETCHER OR EXPANDER.

SPECIFICATION forming part of Letters Patent No. 544,268, dated August 6, 1895. A plication filed February 9, 1895- Serial No. 537,812- (No model.)

To all whom) it may concern.-

Be it known that we, PETER UNSINGER and GEORGE IIANNEs, citizens of the United States, residing at Fremont, in the county of Sandusky and State of Ohio, have invented certain new and usefullmprovementsin Bulb or Tube Stretchers or Expanders, of which the following is a specification.

This invention relates to new and useful improvements in forceps, and particularly to those which are used for stretching or expanding bulbs or tubes.

The object of the invention is to produce forceps having jaws so constructed as to enter tubing or apertures in elastic material and be forced apart by pressure on the handles, thereby enlarging the size of the aperture and allowing a ready connection with another tube or object.

A further object of the invention is to provide forceps simple and comparatively inexpensive in construction, strong, durable, and thoroughly efficient.

With these and other objects in view, the inventionconsists in the various novel details of construction, arrangement, and combination of parts to be hereinafter more fully set forth and specifically claimed.

In describing the invention in detail, reference is had to the accompanying drawings,

forming part of this specification, wherein like numbers denote corresponding parts in the several views, in which-,-

Figure 1 is a view in perspective of our improved forceps, and Fig. 2 is a plan view thereof. Fig. 3 is a detail view showing the jaws curved.

By reference to the drawings, it will be seen that the forceps are composed of duplicate parts consisting of bodies 1 1, each of which are stamped from a single pieceof metal with lugs or cars 2, apertured to receive the pivotal pin 3. The body'is grooved longitudinally and the lugs of one section fit between the lugs of the oppositelyfaced section, wherein they are held by the pivotal pin above referred to. g

A U-shaped spring 2 (not fully shown) is seated in the grooves, with the loop thereof surrounding the pivotal pin.

The operating ends 4 are slightly rounded, and the opposite walls of the grooves are compressed to form recesses to receive the taper-- ing metallic jaws 5, with the ends 6 bent at right angles thereto. The jaws are held in position by rivets 7, passing through coincident openings in the ends and the jaws, as will be apparent.

In the modification illustrated in Fig. 3, the jaws are shown curved. This construction would be especially desirable for many of the uses to which a tool would be subjected.

In view of the foregoing it will be obvious that various changes in the proportions and other details of construction might be resorted to without in any manner evading the spirit of this invention.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

Forceps composed of oppositely pivoted bodies provided with lugs or ears, each body being of a single piece of metal grooved 1ongitudinally a pivotal pin fitting in apertures of the lugs or cars, a spring surrounding the pivotal pin with the ends pressing against the handles, seats formed in the extremities, tapering'jaws riveted therein with the free ends extending at right angles thereto, substantially as described.

In testimony whereof we have affixed our signatures in the presence of two witnesses.

PETER UN SIN GE R. GEORGE HANNES. Witnesses:

HORACE S. BUCKLAND, E. H. HILT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2441846 *Nov 17, 1944May 18, 1948Waldes Kohinoor IncTool for handling open-ended retaining rings
US2815777 *Nov 23, 1954Dec 10, 1957Arvids IraidsSpring actuated miter clamp
US3119428 *May 18, 1962Jan 28, 1964Miles KatzensteinMuffin opener
US3215403 *May 29, 1961Nov 2, 1965Cambridge Filter CorpExpanding tool for filters
US3233313 *Jul 22, 1963Feb 8, 1966Roth William RTube applicator
US3363303 *Aug 26, 1965Jan 16, 1968P O Box 18992Weatherstrip mounting hand tool
US3866299 *Aug 3, 1973Feb 18, 1975G & D Tool Company IncSeal assembly tool
US3916907 *Jun 21, 1974Nov 4, 1975Wendell C PetersonSpreader instrument for use in performing a spinal fusion
US4302176 *Sep 2, 1980Nov 24, 1981Gordon William FTube expander
US4791925 *Oct 13, 1987Dec 20, 1988Mitterer Dennis MRing removal tool
US4820901 *Feb 8, 1988Apr 11, 1989Peviani Thomas PQuick releasable ground and rod clamp for welding
US5382151 *Mar 23, 1994Jan 17, 1995Hayes, Jr.; Frank F.Tool for cold form flaring tubing ends
US5791210 *Oct 10, 1997Aug 11, 1998Wolfcraft GmbhSpring-tensioning pliers
US6261296Oct 1, 1999Jul 17, 2001Synthes U.S.A.Spinal disc space distractor
US6711789Aug 14, 2002Mar 30, 2004Great Neck Saw Manufacturers, Inc.Clamp
US6712825Jun 14, 2001Mar 30, 2004Max AebiSpinal disc space distractor
Classifications
Cooperative ClassificationB25B27/205