US1345443A - Screwdriver - Google Patents

Screwdriver Download PDF

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Publication number
US1345443A
US1345443A US24698318A US1345443A US 1345443 A US1345443 A US 1345443A US 24698318 A US24698318 A US 24698318A US 1345443 A US1345443 A US 1345443A
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US
United States
Prior art keywords
handle
tool
ferrules
shank
projections
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
Application number
Inventor
Hood Henry
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Hood Henry
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Publication date
Application filed by Hood Henry filed Critical Hood Henry
Priority to US24698318 priority Critical patent/US1345443A/en
Application granted granted Critical
Publication of US1345443A publication Critical patent/US1345443A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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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
    • B25B23/16Handles

Description

"UNITED STATES PATE or-frlcsi- HENRY noon, or rninannnrnm, PENNSYLVANIA.

scimwnmvnn.

To all whom it may concern:

Be it known that I, HENRY Hoon, a citi zen of the United States, residin at Philadelphia, in the county of Phila elphia State of Pennsylvania, have invented new and useful Improvements in Screwdrivers,

of which the following is a specification.

My invention relates to new and useful improvements in screw drivers, and has for its object to provide a newimproved method of securing the handle upon the tool shank which latter passes entirely. through the handle, thereby making a more rigid tool as well as preventing said handle from becoming loose on the tool shank;

A further object of the invention is to provide means for fastening a wooden han- I dle on a metal tool wherein none of the attaching means pass through the wooden han dle and wherein a considerable portion of the wooden handle at each end is inclosed by holding means which fasten the wooden handle in fixed relation to the tool shank, but being removed therefrom even though said wooden handle should be split longitudinally from any cause whatsoever.

Anotherobject of the invention is to provide hard malleable ferrules so that the tool may be struck exceedingly hard blows without injury to the parts or without impairing the usefulness of the tool;

A further object of the invention is to provide a wooden handle with a projection at each end of irregular cross sections or of some cross sectional shape other than round, as for instance, an elliptical conical frustum which are housed in ferrules having chambers corresponding to the shape of the projections, so that when the parts are in position, the wooden handle will be held against rotation.

With these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by.

ferrule.

' vided at each end with a considerable length, each "'eing ap' mxr s ecification of Letti'slatnt. at t J ly 6, 9 0 Application filed ui 27, ms. seiiai n $116,983. i 1

driver constructed in accordance with my improvements. v j fig. 2, i's a similar view at right angles thereto. g f j Fig. 3, is a longitudinal sectional view thereof, the tool blade and shank being left in elevation, U f

'Fig'. 4, is an'inner end view of the outer F 5,.is afsimilar view of the inner ferru e.'

F 6, is a side elevation of the handle \vhgch is preferably constructed of wood, an

Fig. 7, is an end view thereof.

In carrying out my invention as here embodied, 2' represents a tool blade here shown as a screw driver provided with a shank 3" on which is mounted the handle 4 produe-ed from suitable material, but pref erably constructed of wood and whensaid handle is in position upon the tool shank, the latter passes entirely through the former as will, readily ascertained from Fig. 3.

The handle 4 may be of any desirable shape and in this particular case, itjis preferably elliptical in cross section and is prorojection of mately'one-siirth of the entire length of the handle. i

The inner endsfof these projections are smaller than the main body or central portion of the handle at the points where said projections meet the main body portion thereby forming at each end a shoulder 6 and the walls of said projections converge toward their outer ends while the Y are of irregular shape 1n cross section. n other words, the cross sectional shape of said proectlons is other than round, as for instance,

they may be elliptical, as here shown, so that said projections form elliptical conical frustums.

The handle 4 is provided with a central longitudinal bore 7 running the entire length thereof including the projections 5, so that when mounted upon the shank 3, the latter passes entirely therethrou'gh with the upper or outer end projecting beyond the handle, as plainly shown in Fig. 3.

On the shank 3 at each end of the handle is mounted a ferrule 8 and these ferrules are produced from some suitable hard malleable metal such as. steel or malleable iron," so that the tool may be struck with another. tool such as a hammer without injuring the same or without impairing the usefulness of the screw driver.

The exterior contour of these ferrules resemble or is the same as the exterior contour of the handle for instance where said handle is elliptical in cross section, the ferrules are also elliptical. Each of the ferrules is provided with a bore 9 which communicates with a gradually increasing elliptical chamber 10 corresponding to the contour of theprojeetions on the handle with which they register and inclose and because of the shapes of the projections and the chambers in the ferrules, said handle is prevented from rotating independently of the ferrule.

The inner ferrule is rigidly secured or fixed to the shank intermediate its ends by av rivet 11 or its equivalent which passes through said ferrule and shank beyond the chamber so that saidrivet does not contact or pass. through the handle. The up per ferrule is provided at its outer end at the end of the bore 9 with a countersink 12. and when said ferrule-is properly positioned uponthe projecting outer endof the shank, the said outer end is headed asat 13 thereby-securely fastening the said outer ferrule in place. lVhen the ferrules are placed upon the handle, the inner edges thereof engagethe shoulder 6 on the handle and properly position the ferrules relative to the handle.

As before stated, the handle 4: is in no way directly attached to the tool shank nor has it any fastening means of any character passing through the same, but be-. cause of the shapes of the projections 5 and the chamber 10 of the ferrules registering therewith and said ferrules being fixed to the shank, the handle will be rigidly'secured in place upon the shank, thus preventing said handle from being turned independentlyof the tool blade.

Byconstructing a tool in the manner above described, it is very unlikely that the handle will split, but if it should split, the parts cannot be displaced because of the ceedingly hard blows with another. .tool

such as a hammer, so that a workman may use the device for splitting pieces of. wood for making holes or for prying two objects apart which is often found necessary or convenient and although I am aware that ferrules have been used on tool handles before, yet these are generally made of light metalsuch as tin or thin brass which are not of sufficient strength to prevent the handle fromturning should the same become loose upon the tool shank nor stiff enough to prevent a piece of the handle from separating from the main part of the handle should the latter split, then again they'are not hard enough to prevent their destruction if hammered upon, but with the construction here illustrated and 'described, all these objections are entirely overcome.

Of course I do not wish to be limited to the exact details of construction as herein shown, as these may be varied within the limits of the appended claim without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new and patentable A tool comprising a handle elliptical in cross section, a projection at each end having the shape of an elliptical conical frustum, ferrules each having a bore and an elliptical chamber gradually increasing in size to correspond tothe shape of the projections, one of said ferrules being mounted on each end of the handle and inclosing the projections and a blade having a shank passing entirely through the handle and ferrules, said ferrules being fixed to'the shank for attaching the handle thereto. 1

y In testimony whereof, I have hereunto affixed my signature. i

HENRY noon.

US24698318 1918-07-27 1918-07-27 Screwdriver Expired - Lifetime US1345443A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567466A (en) * 1946-04-22 1951-09-11 Robert L Bartlett Screw driver
US2706315A (en) * 1949-06-11 1955-04-19 Manley R Price Wall or ceiling treatment
US3292678A (en) * 1965-10-12 1966-12-20 Noga John Edward Calibrated screw driver
US5535484A (en) * 1993-10-05 1996-07-16 Gibson; Jeremy H. Utensil handle
US20040193175A1 (en) * 2003-03-31 2004-09-30 Maroney Brian J Arthroplasty sizing gauge
US20040193168A1 (en) * 2003-03-31 2004-09-30 Long Jack F. Arthroplasty instruments and associated method
US20050209597A1 (en) * 2004-03-05 2005-09-22 Long Jack F Surface replacement extractor device and associated method
US20060149390A1 (en) * 2003-03-31 2006-07-06 Long Jack F Punch, implant and associated method
US20070102889A1 (en) * 2005-10-26 2007-05-10 Kraftool Mfg. (Shanghai) Co., Ltd. Tool handle assembly
US20080065226A1 (en) * 2003-03-31 2008-03-13 Depuy Products, Inc. Prosthetic implant, trial and associated method
US20090192622A1 (en) * 2003-03-31 2009-07-30 Depuy Products, Inc. Extended Articulation Orthopaedic Implant
US20090254188A1 (en) * 2003-03-31 2009-10-08 Maroney Brian J Articulating Surface Replacement Prosthesis
US20100049260A1 (en) * 2003-03-31 2010-02-25 Depuy Products, Inc. Extended articulation orthopaedic implant
USD669332S1 (en) * 2010-07-14 2012-10-23 Ing. Johann Hoertnagl - Werkzeuge Gmbh Handle for tools

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567466A (en) * 1946-04-22 1951-09-11 Robert L Bartlett Screw driver
US2706315A (en) * 1949-06-11 1955-04-19 Manley R Price Wall or ceiling treatment
US3292678A (en) * 1965-10-12 1966-12-20 Noga John Edward Calibrated screw driver
US5535484A (en) * 1993-10-05 1996-07-16 Gibson; Jeremy H. Utensil handle
US8545506B2 (en) 2003-03-31 2013-10-01 DePuy Synthes Products, LLC Cutting guide for use with an extended articulation orthopaedic implant
US20040193168A1 (en) * 2003-03-31 2004-09-30 Long Jack F. Arthroplasty instruments and associated method
US9445911B2 (en) 2003-03-31 2016-09-20 DePuy Synthes Products, Inc. Bone preparation tool kit and associated method
US20060149390A1 (en) * 2003-03-31 2006-07-06 Long Jack F Punch, implant and associated method
US9254135B2 (en) 2003-03-31 2016-02-09 DePuy Synthes Products, Inc. Arthroplasty instruments and associated method
US20080065226A1 (en) * 2003-03-31 2008-03-13 Depuy Products, Inc. Prosthetic implant, trial and associated method
US7527631B2 (en) 2003-03-31 2009-05-05 Depuy Products, Inc. Arthroplasty sizing gauge
US20090187193A1 (en) * 2003-03-31 2009-07-23 Maroney Brian J Joint Arthroplasty Kit and Method
US20090192622A1 (en) * 2003-03-31 2009-07-30 Depuy Products, Inc. Extended Articulation Orthopaedic Implant
US20090198238A1 (en) * 2003-03-31 2009-08-06 Depuy Products, Inc. Bone Preparation Tool Kit and Associated Method
US20090254188A1 (en) * 2003-03-31 2009-10-08 Maroney Brian J Articulating Surface Replacement Prosthesis
US20100049260A1 (en) * 2003-03-31 2010-02-25 Depuy Products, Inc. Extended articulation orthopaedic implant
US20040193175A1 (en) * 2003-03-31 2004-09-30 Maroney Brian J Arthroplasty sizing gauge
US9107758B2 (en) 2003-03-31 2015-08-18 DePuy Synthes Products, Inc. Bone preparation tool kit and associated method
US8070755B2 (en) 2003-03-31 2011-12-06 Depuy Products, Inc. Joint arthroplasty kit and method
US8105327B2 (en) * 2003-03-31 2012-01-31 Depuy Products, Inc. Punch, implant and associated method
US8182541B2 (en) 2003-03-31 2012-05-22 Depuy Products, Inc. Extended articulation orthopaedic implant
US8974458B2 (en) 2003-03-31 2015-03-10 DePuy Synthes Products, LLC Arthroplasty instruments and associated method
US8882776B2 (en) 2003-03-31 2014-11-11 DePuy Synthes Products, LLC Extended articulation orthopaedic implant
US8366713B2 (en) 2003-03-31 2013-02-05 Depuy Products, Inc. Arthroplasty instruments and associated method
US8444646B2 (en) 2003-03-31 2013-05-21 Depuy Products, Inc. Bone preparation tool kit and associated method
US9849000B2 (en) 2003-03-31 2017-12-26 DePuy Synthes Products, Inc. Punch, implant and associated method
US8814943B2 (en) 2003-03-31 2014-08-26 DePuy Synthes Products,LLC Bone preparation tool kit and associated method
US8282649B2 (en) 2004-03-05 2012-10-09 Depuy Products, Inc. Extended articulation orthopaedic implant
US7879042B2 (en) 2004-03-05 2011-02-01 Depuy Products, Inc. Surface replacement extractor device and associated method
US20050209597A1 (en) * 2004-03-05 2005-09-22 Long Jack F Surface replacement extractor device and associated method
US20100082074A1 (en) * 2004-03-05 2010-04-01 Depuy Products, Inc. Extended articulation orthopaedic implant
US20070102889A1 (en) * 2005-10-26 2007-05-10 Kraftool Mfg. (Shanghai) Co., Ltd. Tool handle assembly
USD669332S1 (en) * 2010-07-14 2012-10-23 Ing. Johann Hoertnagl - Werkzeuge Gmbh Handle for tools

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