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Improvement in wrenches

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Publication number
US208057A
US208057A US208057DA US208057A US 208057 A US208057 A US 208057A US 208057D A US208057D A US 208057DA US 208057 A US208057 A US 208057A
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Prior art keywords
ring
arm
split
wrench
lever
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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Publication date
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • B25B13/50Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/52Chain or strap wrenches
    • 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
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1558Grip units and features
    • Y10T74/1587Grip features
    • Y10T74/1589Driving band
    • Y10T74/159Clamping

Description

.A. BECK, Wrench.

No. 208,057. Y Pate nted Sept. 11, 1878.

INVBNTOR:

WITNESSES I zaZya/z 21/0 ATTORNEYS.-

UNITED STATES PATENT OFFICE.

AUGUST BECK, on NEW YORK, N. Y.

IMPROVEMENT IN WRENCHES.

Specification forming part of Letters Patent N 0. 208,05 7, dated September 17', 1878 application filed August 6, 1878.

To all whom it may concern:

Be it known that I, AUGUST BECK, of the city, county, and State of New York, have invented a new and Improved Wrench, of which the following is a specification:

Figure 1 is a side elevation of my improved wrench as applied to a ratchet-drill, a part being broken away to show how the wrenchbush is held in position. Fig. 2 is a plan view, partly in" section. Fig. 3 is a detail view of a bushing for adapting the wrench to bolts and nuts. Y

Similar letters of reference indicate correspondin g parts.

My invention consists in a split ring or friction-strap having at one side of the split an arm that is pivoted in a lever-handle, and having at the other side of the split an inclined plane, which is acted on by a pin in a short double arm that projects from the lever-handle. The wrench is provided with a split ring, whose elasticity expands and causes the handle to be retracted, so as to loosen the gripe upon the object held.

In the drawing, A is a split ring formed on the end of an arm, B, which is pivoted in the leverhandle 0, the said leverhandle being grooved longitudinally to receive it.

The arm B is at one side of the split in the ring, and an inclined plane or wedge, D, projects from the-ring at the opposite side of the split, and is engaged by a pin, a, that passes through a double arm, I), which projects from I the pivot end of the lever-arm O at right angles and straddles the inclined plane or wedge A spring, 0, is secured to the longer or free end of the arm B, and. presses against the lever-handle (3, throwing the wedge D away from the pin a.

The split ring A is fitted to any object which it is desired to turn, such as a drill-stock, as shown in Fig. 1, or the bushing shown in Fig. 3, which is adapted to the heads and nuts of bolts. A forward movement of the hand-lever brings the pin a into engagement with the inclined plane D, and thus contracts the ring, when a further forward movement results in turning the object to which the split ring is fitted.

This wrench may be used for turning in a right or left handed direction, and it I may be applied to drill-stocks and jack-screws.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, with the recessed handle 0, having double arm I) and cross-pin a, of the pivoted spring-pressed arm B, provided with spring-ring A, and with a wedge on one of the open ends of ring opposite to the arm B, as shown and described.

AUGUST BECK.

US208057A Improvement in wrenches Expired - Lifetime US208057A (en)

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US208057A true US208057A (en) 1878-09-17

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US208057A Expired - Lifetime US208057A (en) Improvement in wrenches

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685208A (en) * 1950-08-14 1954-08-03 John G Ruckelshaus Vibratory adjusting mechanism
US2766648A (en) * 1955-10-26 1956-10-16 Alois M Jazwieck Friction actuated, ratchet type wrench
WO2004014612A1 (en) * 2002-08-08 2004-02-19 Smart Tools Ltd. Wrench with split ring
US20050268751A1 (en) * 2002-08-01 2005-12-08 Buchanan Nigel A Gearless one way drive
US6988430B1 (en) 2002-01-16 2006-01-24 Snap-On Incorporated Wrench with flexible ring
CN102773821A (en) * 2011-05-09 2012-11-14 杨德川 Spanner structure
US8607671B2 (en) 2010-08-06 2013-12-17 American Grease Stick Company Wrench with trigger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685208A (en) * 1950-08-14 1954-08-03 John G Ruckelshaus Vibratory adjusting mechanism
US2766648A (en) * 1955-10-26 1956-10-16 Alois M Jazwieck Friction actuated, ratchet type wrench
US6988430B1 (en) 2002-01-16 2006-01-24 Snap-On Incorporated Wrench with flexible ring
US20050268751A1 (en) * 2002-08-01 2005-12-08 Buchanan Nigel A Gearless one way drive
WO2004014612A1 (en) * 2002-08-08 2004-02-19 Smart Tools Ltd. Wrench with split ring
US20050247168A1 (en) * 2002-08-08 2005-11-10 Buchanan Nigel A Wrench with split ring
US7418890B2 (en) 2002-08-08 2008-09-02 Smart Tools Ltd Wrench with split ring
US8607671B2 (en) 2010-08-06 2013-12-17 American Grease Stick Company Wrench with trigger
CN102773821A (en) * 2011-05-09 2012-11-14 杨德川 Spanner structure

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