US518472A - Screw-driver - Google Patents

Screw-driver Download PDF

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Publication number
US518472A
US518472A US518472DA US518472A US 518472 A US518472 A US 518472A US 518472D A US518472D A US 518472DA US 518472 A US518472 A US 518472A
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Prior art keywords
screw
point
driver
slot
arm
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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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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02Arrangements for handling screws or nuts
    • B25B23/08Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B25B23/106Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a blade

Description

S. I. SNYDER. SCREW DRIVER.

(No Model.)

Patehted Apr. 17, 1894.

Saiaaall ,ii ydaf 1 Ho'rgeys.

UNITED STATES PATENT OFFICE.

SAMUEL I DELL SNYDER, OF CLEARFIELD, PENNSYLVANIA.

SCREW-DRIVER.

SPECIFICATION forming part of Letters Patent No. 518,472, dated April 17, 1894.

Application filed February 10, 1 894:. fierial No. {99,786- (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL IDELL SNYDER, acitizen of theUnited States, residing at Clearfield, in the county of Clearfield and State of Pennsylvania, have invented a new and useful Screw-Driver, of which the following is a specification.

My invention has for its object the production of a screwdriver which will more effectually hold the screw preparatory to driving it, and one which can be used with greater ease and speed than those heretofore known.

To this end the invention consists of a screwdriver having a rigid point capable of entering the screw slot and standing the pressure necessary to drive the screw, and provided with a spring-arm extending parallel therewith and adapted to enter the slot and to bind against the sides thereof, thus holding the screw on the tool and admitting it to be inserted into difficult and out of the way places.

In the accompanying drawings:Figure 1 represents a perspective view of a tool constructed after the manner of my invention and shown in use; Fig. 2 a longitudinal section of the same including the screw; and Fig.

3 an enlarged perspective view of the screw end of the tool.

The letter a indicates the handle of the device, which may, of course, be of any construction, and b the tang. Formed integral with the tang b is the driving point 0, which is adapted to enter the slot 01 of the screw e, as usual.

f indicates the spring arm aforesaid, and this may be formed integral with the tang b, or rigidly secured thereto, as preferred. The arm f projects out from the tang at a point near its end, and extends outwardly alongside the point 0, until its end is reached. This arm is the same shape as the point 0, and its end normally lies a distance from the point equal to a little more than the width of the slot d in the screw. By this construction the screw is firmly held by the tool, and to secure the screw to the point all that will be necessary is to bring the end of arm f in engagement with one side of the slot (2 and press the arm thereagainst until it engages and lies flush with the point. The point may then be inserted in the slot, and the arm f will bind firmly against the side of the slot, thus holding the screw in place. The screw may then be carried to the place desired with perfect ease. By this device the diiiicultyof reaching out ofthe way places is entirely overcome, and at the same time the tool is constructed so as to be just as effective and durable as before.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A screw-driver comprising a point adapted to enter the slot in the screw and to bear the strain of the screwing operation, and a springarm having an outward tendency and secured to lie adjacent to the point and adapted to bear against one side of the slot in the screw, whereby the screw may be held by the tool, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

SAMUEL IDELL SNYDER.

Witnesses:

KARL IRWIN, J. WADE SNYDER.

US518472A Screw-driver Expired - Lifetime US518472A (en)

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US518472A true US518472A (en) 1894-04-17

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593622A (en) * 1949-02-04 1952-04-22 Albert L Stanelle Screw holding screw driver
DE2214466A1 (en) * 1971-03-25 1972-09-28
US3831648A (en) * 1972-03-20 1974-08-27 T Hill Combined screw driving and screw gripping tool
US3894450A (en) * 1971-03-25 1975-07-15 Tore L Hill Combined screw driving and screw gripping tool
US20040050219A1 (en) * 2002-09-16 2004-03-18 Carroll Ernest A. Driving tool
US20050115370A1 (en) * 2002-04-18 2005-06-02 Katsuyuki Totsu Screw holding screwdriver bit and combination thereof with screws
US20050120838A1 (en) * 2002-09-16 2005-06-09 Gottlieb Steven D. Driving tool
US20090211412A1 (en) * 2005-07-13 2009-08-27 Stryker Trauma Gmbh Screwdriver for an Inner Profile Screw

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593622A (en) * 1949-02-04 1952-04-22 Albert L Stanelle Screw holding screw driver
DE2214466A1 (en) * 1971-03-25 1972-09-28
US3894450A (en) * 1971-03-25 1975-07-15 Tore L Hill Combined screw driving and screw gripping tool
US3831648A (en) * 1972-03-20 1974-08-27 T Hill Combined screw driving and screw gripping tool
US20050115370A1 (en) * 2002-04-18 2005-06-02 Katsuyuki Totsu Screw holding screwdriver bit and combination thereof with screws
US7249544B2 (en) * 2002-04-18 2007-07-31 Katsuyuki Totsu Screw holding type screwdriver bit and combination thereof with screws
US20040050219A1 (en) * 2002-09-16 2004-03-18 Carroll Ernest A. Driving tool
US20050120838A1 (en) * 2002-09-16 2005-06-09 Gottlieb Steven D. Driving tool
US20090211412A1 (en) * 2005-07-13 2009-08-27 Stryker Trauma Gmbh Screwdriver for an Inner Profile Screw
US8347768B2 (en) * 2005-07-13 2013-01-08 Stryker Trauma Gmbh Screwdriver for an inner profile screw
US8770068B2 (en) 2005-07-13 2014-07-08 Stryker Trauma Gmbh Screwdriver for an inner profile screw

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