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Publication numberUS1169496 A
Publication typeGrant
Publication dateJan 25, 1916
Filing dateJan 27, 1915
Priority dateJan 27, 1915
Publication numberUS 1169496 A, US 1169496A, US-A-1169496, US1169496 A, US1169496A
InventorsHarry A Knauff
Original AssigneeHarry A Knauff
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Folding street-wrench.
US 1169496 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)




Patented Jan. 25, 1916.



Specification of Letters Patent.

Patented J an. 25, 19116.

Application filed January 27, 1915. Serial No. 4,727.

To all whom it may concern:

Be it known that I, HARRY A. KNAUFF, a citizen of the United States, residing at Pittsbur h, in the county of Allegheny and State o-fiennsylvania, have invented a new and useful Folding Street-\Vrench, of which the following is a specification.

My invention relates to improvements in plumbers street wrenches used to operate street stop cocks or valves sunk below the surface of the street at the bottom of long narrow boxes, and the object is to furnish a folding wrench which may be carried in a small space avoiding the necessity of carrying the usual long handled wrench. I attain this object by the wrench illustrated in the accompanying drawing.

Figure 1 is a view of the Wrench extended. Fig. 2 is a view of the wrench foldedyand Fig. 3 is an enlarged vertical section of the wrench showing the joint or hinge which connects the rod members and the sliding sleeve or box which drops down over the joint When the wrench is in use. The joint or hinge member being of greater cross section than one of its connecting rod members forms a shoulder for support of the sleeve when the wrench is extended.

As shown by Fig. 2 the wrench consists of three rod members of steel, 2, 2, 2, joined together by hinge members, 3, 3, which hinge members allow the rod members When folded to lie parallel and somewhat separated. Each hinge or joint is provided with a sliding sleeve 4, which drops down over the hinge when the "Wrench is unfolded and straightened and protects the members from twisting, relieves the hinge from strain and makes the wrench practically one solid piece. The sleeve 4 is shown in detail in Fig. 3.

Fig. 1 shows the wrench ready to use. The lower end has a U-shaped jaw 5 which fits over the top of the stop cook or valve at the bottom of the street box. The upper end has a square socket 6 to remove the screw from the surface box.

I am aware that prior to my invention street wrenches consisting of one long piece have been made; but

I claim:

1. In a device of the character described, a plurality'of rod members connected by a hinge member, one of said rod members being of less cross sectional area than the hinge member, a sleeve member surrounding the joined contiguous ends of the rod members and hinge member, said sleeve member having internal means of support on the hinge member.

2. In a device of the character described, a plurality of rod members connected by a hinge member, a sleeve member surrounding the joined contiguous ends of the rod members and hinge member, said hinge member having a shouldered face, and said sleeve member having an internal stop adapted to engage said face of the hinge member.

HARRY A. KNAUFF. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2430512 *May 22, 1946Nov 11, 1947Johnson Jr Frank HCleaning device for chimneys or the like
US2472572 *Jun 4, 1945Jun 7, 1949Anthony Dailey LewisLanding net
US2494832 *May 7, 1947Jan 17, 1950Piper Ray WTie wire twisting and tightening tool
US2636705 *Dec 9, 1949Apr 28, 1953Leo E StantonCreeper lamp attachment
US2697937 *Sep 19, 1952Dec 28, 1954Richards Jr Albert ZabriskieSoil testing equipment and ground anchor for the same
US2910101 *Jul 11, 1958Oct 27, 1959David Canfield VirgilFolding frame swedish type buck saw
US4327611 *Aug 11, 1980May 4, 1982Catanese Salvatore SAdjustable sleeve flex wrench
US4531274 *Dec 14, 1983Jul 30, 1985Sanders Joseph EUnlatching tool to uncouple semi-trailer trucks
US4606247 *Sep 16, 1985Aug 19, 1986Professional Business Management AssociatesVersatile chained tool set
US5823077 *May 8, 1996Oct 20, 1998Proprietary Technologies, Inc.Double-ended wrench
US6662688 *Oct 7, 2002Dec 16, 2003Hornet Tool CompanyLug wrench
US8448545 *Mar 2, 2011May 28, 2013Douglas B. ArgyleBender bar speedwrench 4-in-1 multi-tool
U.S. Classification403/100, 254/DIG.300, 81/177.6, 81/125.1
Cooperative ClassificationY10S254/03, A01K87/02, A47B3/0912