|Publication number||US824983 A|
|Publication date||Jul 3, 1906|
|Filing date||Jul 11, 1905|
|Priority date||Jul 11, 1905|
|Publication number||US 824983 A, US 824983A, US-A-824983, US824983 A, US824983A|
|Inventors||Charles B Farrington|
|Original Assignee||Stephen T Lockwood, Charles B Farrington|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (29), Classifications (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
PATENTED JULY 3, 1906.
fwenwr: %%i% p 0. B. FARRINGTON.
APPLICATION FILED JULY 11. 1905.
UNITED STATES PATENT OFFICE.
CHARLES B. FARRINGTON, or BRooKLYN, NEWJYORK, ASSIGNOR OF'ONFF FOURTH TO STEPHEN T. LOCKWOOD; F BROOKLYN, NEW YORK.
Specification of Letters Patent.
Application filed July 11, 1905- Serial No. 269,247.
' Patented July 3, 1906.
To all whom it may concern.-
Be it known that I, CHARLES B. FARRING TON, a citizen of the United States, residing in the borough ofBrooklyn, in the county of or other material in the usual manner, but
which cannot be Withdrawn without muti-' lation. I attain this. result by the device shown in the accompanying drawings, which Figure 1 is a view of the device, partly in section, with the false head inserted in the screw-body. Fig. 2 is a view of the same with the false head separated from the screwbody. Fig. 3 is an optional form of the device, artly in section, with the false head inserte in the screw-body. Fig. 4 is the optional form of the device shown in Fig. 3 with the false head separated from the screwbody.
Similar letters refer to similar parts through.- out the several views.
In a screw-body 0, provided with exterior screw-threads e e on its lower end section, I provide a longitudinal socket 11, extending om the top of the screw-body downwardly and provided with interior screw-threads f. The top of the screw-body a is smooth and not provided with any transverse slot for the screw-driver, as in the usual form of screw. I also provide a false head 0, the outer edge of which preferably conforms to the outer edge of the top of the screw-body d. Pro'ecting downwardly from'this false head 0 t ere is formed a projection c, screw-threaded to fit the screw-threads f in the. socket bin the screw-body. In use the projection c of false head 0 is inserted in the socket b in the screwbody a, when the screw-body a may be-turne'd and forced into the wood or other material in which the screw-body is to.be .inserted by means of a screw-driver or other suitable tool inserted in the transverse slot d in the false head in the usual manner. The screw-body having been thus inserted it will be found that when it is attempted to withdraw the screw in the usual manner by a reverse turn the false head 0 will be withdrawn and the screw-body a will remain and will not be moved by any 5 5 reverse turn of the false head a. y
- An optional form of my device adapted for a flat-head screw is' shown in Figs. 3 and 4. The false head 7c is provided with a transverse slot 1 and the screw-threaded projection m to fit into the socket 'i in the screw-body g, provided with exterior screw-thread h, and is o erated in the same manner as the form s own in Figs. 1 and 2, above described. Where the screw is to be inserted in a hard substance, the false head may be strengthened by providing a beveled section n at the oint where the projection m is joined to the alse head it, and the upper end of the socket i in the screw-body a is 1n such case flared at '5 to receive the enlarged section a. of the projection m of the false head is.
Having thus described my invention, what I claim is y A screw having a body formed with an en-, 7 5 larged head and with exterior screw-threads, said body having an interiorly-screw-threaded socket which is surrounded by an unbroken wall on the outer face of said head, and means for inserting said screw into the desired position consisting of a head slotted on its outer face and provided with a screwthreaded projection, the relative construe-- tion being such that 'the under face of the lastnamed head may engage the outer face of the first-named head.
In testimony whereof I affix my signature in presence of two witnesses.
CHARLES E. FARRINGTON. Witnesses:
J USTIN S. HOLLAN GEORGE M. Fotmns.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2444145 *||May 24, 1943||Jun 29, 1948||Rosan Joseph||Insert and use of same|
|US3073206 *||Apr 8, 1959||Jan 15, 1963||Eugene A Rudolph||Cap screws with replaceable inserts|
|US5078718 *||Apr 17, 1990||Jan 7, 1992||Origin Medsystems, Inc.||Multi-part method and apparatus for removing pre-placed prosthetic joints and preparing for their replacement|
|US5190551 *||Dec 14, 1990||Mar 2, 1993||Zimmer, Inc.||Controlled apparatus and method for extracting cement mantles from bone recesses|
|US5222957 *||Apr 10, 1992||Jun 29, 1993||Zimmer, Inc.||Method and apparatus for extracting a cement mantle from a bone recess|
|US5333976 *||Jun 23, 1993||Aug 2, 1994||Dobbrunz Kurt A||Center locking spacing bolt|
|US5688088 *||Jul 15, 1992||Nov 18, 1997||Excelsior Development Inc.||Dynamometric screw or nut|
|US5787675 *||Oct 1, 1996||Aug 4, 1998||Futagi; Kohzoh||Method of assembling log walls for log house and clamping bolt to couple the wall|
|US6026571 *||Oct 20, 1997||Feb 22, 2000||Industrial Strength Corporation||Method of connecting a stem to a base of an article of jewelry|
|US6033170 *||Jan 3, 1995||Mar 7, 2000||Gold; Peter||Screw head nail|
|US6045126 *||Nov 3, 1998||Apr 4, 2000||Brzezinski; Stan F.||Vise jaw and bolt|
|US6295773 *||Jul 22, 1999||Oct 2, 2001||Louis Karl Alty||Devices and methods for securing an object to a first structure through a hole in a second structure|
|US6318924 *||Apr 20, 2000||Nov 20, 2001||Anthony Paul Schiavo, Jr.||Quick-connect for mounting objects|
|US6464441 *||Jul 13, 2001||Oct 15, 2002||Hettich-Heinze Gmbh & Co. Kg||Dowel pin of an assembly arrangement for joining two furniture parts|
|US6662511 *||Nov 28, 2000||Dec 16, 2003||Louis Karl Alty||Devices and methods for securing an object to a first structure through a hole in a second structure|
|US6663635 *||Jan 7, 2002||Dec 16, 2003||Synthes (U.S.A.)||Bone screw with two-part screw head|
|US7476228 *||Oct 10, 2003||Jan 13, 2009||Abdou M Samy||Distraction screw for skeletal surgery and method of use|
|US8308776||May 28, 2010||Nov 13, 2012||Samy Abdou||Devices and methods for dynamic fixation of skeletal structure|
|US8398689||Sep 14, 2010||Mar 19, 2013||Samy Abdou||Devices and methods for dynamic fixation of skeletal structure|
|US8636457||Jun 24, 2010||Jan 28, 2014||Robert W. Connors||Two-way fastener|
|US8845696||Mar 18, 2013||Sep 30, 2014||Samy Abdou||Devices and methods for dynamic fixation of skeletal structure|
|US8845701||Jan 3, 2014||Sep 30, 2014||Samy Abdou||Devices and methods for dynamic fixation of skeletal structure|
|US8876874||Aug 21, 2007||Nov 4, 2014||M. Samy Abdou||Bone screw systems and methods of use|
|US20020056235 *||May 9, 2000||May 16, 2002||Daniel A. Thomson||Method and apparatus for hurricane and severe weather protection|
|US20040133207 *||Oct 10, 2003||Jul 8, 2004||Abdou M. Samy||Distraction screw for skeletal surgery and method of use|
|US20040205936 *||Apr 15, 2003||Oct 21, 2004||Andre Denys||Escutcheon plate assembly|
|US20130095969 *||Oct 17, 2012||Apr 18, 2013||Sram Deutschland Gmbh||Derailleur Guide Device|
|DE102011053564A1 *||Sep 13, 2011||Mar 14, 2013||Krauss-Maffei Wegmann Gmbh & Co. Kg||Assembly device of multilayer armor of e.g. military vehicle, has attachment elements that are connected with other in releasable manner so as to fasten secondary armor plate on primary armor plate|
|DE102011053564B4 *||Sep 13, 2011||Apr 25, 2013||Krauss-Maffei Wegmann Gmbh & Co. Kg||Montagevorrichtung, mehrlagige Panzerung und Verfahren zur schichtweisen Montage von Platten|