US131843A - Improvement in screws - Google Patents
Improvement in screws Download PDFInfo
- Publication number
- US131843A US131843A US131843DA US131843A US 131843 A US131843 A US 131843A US 131843D A US131843D A US 131843DA US 131843 A US131843 A US 131843A
- Authority
- US
- United States
- Prior art keywords
- screws
- screw
- improvement
- head
- same
- 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
Links
- 230000006872 improvement Effects 0.000 title description 5
- 238000010276 construction Methods 0.000 description 2
- 241001417523 Plesiopidae Species 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/91—Antitamper means
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/919—Screw having driving contacts
Definitions
- the invention consists in a screw for wood or metal, constructed with a head presenting square shoulders for the impact of the driver in sinking the same, and inclines to reject or cast off the driver if applied with endeavor to unscrew it.
- the construction facilitates the application of the tool to drive the screw, and
- Numbers or private marks may be applied to the screws to prevent their duplication or replacement.
- Figurel is a plan view of a countersunk wood-screw illustrating the invention. Figs.
- FIGS. 4, 5, and 6 represent a roundhead screw illustrating the invention.
- the screw may. have a threaded stem or bit, 2, of any approved construction, adapted for the material in which the screw is to be used, and a head, y, of any
- the upper surface shoulders, I 1 at the opposite ends and on opposit-e sides of a transverse line, and with a space, 2,between their faces of sufficient width to accommodate the point of an ordinary screwdriver.
- Opposed to these shoulders 1 are inclines 3, extending up from the base of one shoulder to the top of the other.
- the screwdriver need simply be applied across the low center of the head. On turning the same in the proper direction to sink the screw, the
- a fastening-screw constructed with a head, 3 having shoulders I for the impact of the driver in sinking the same, and opposing inclines 3 to reject the driver, so that the screw may not be withdrawn thereby, substantially as herein shown and described.
Description
F. WQBROOK'S.
Improvement in Screws.
No. 131,843. Patented Oct. 1, 1872.
Whnesses Inventor.
PATEN OEEIoE.
FRANKLIN w. BROOKS, on NEW YORK, N. Y.
IMPROVEMENT IN SCREWS Specification forming part of Letters Patent No. 131,843, dated October 1, 1872.
To an whom it may concern:
Be it known that I, FRANKLIN W. BROOKS,
of the city, county, and State of New York,
have invented an Improvement in Screws, of which the following is a specification:
N atnre and Objects of the Invention.
This invention relates to permanent fastenings, or to that class of fastenings which are so constructed as, when once applied, to be in capable of removal or withdrawal without breaking or marring the same, so that the act may be detected if done by an unauthorized.
person. i
The invention consists in a screw for wood or metal, constructed with a head presenting square shoulders for the impact of the driver in sinking the same, and inclines to reject or cast off the driver if applied with endeavor to unscrew it. The construction facilitates the application of the tool to drive the screw, and
renders its-withdrawal by the same means impossible. Numbers or private marks may be applied to the screws to prevent their duplication or replacement.
Description of the Drawing. i
Figurel is a plan view of a countersunk wood-screw illustrating the invention. Figs.
2 and'3 are elevations of the same from the sides, indicated by the arrows at and b, respectively. Figs. 4, 5, and 6 represent a roundhead screw illustrating the invention. Fig. 4
is a plan of the same 5 and Figs. 5 and 6, elevations from the sides, indicated by the arrows c and d. i
Genemi Description;
approved general outline.
of the head 3 is formed with a pair of square inal manufacture. The screw may. have a threaded stem or bit, 2, of any approved construction, adapted for the material in which the screw is to be used, and a head, y, of any The upper surface shoulders, I 1, at the opposite ends and on opposit-e sides of a transverse line, and with a space, 2,between their faces of sufficient width to accommodate the point of an ordinary screwdriver. Opposed to these shoulders 1 are inclines 3, extending up from the base of one shoulder to the top of the other. The screwdriver need simply be applied across the low center of the head. On turning the same in the proper direction to sink the screw, the
shoulders l are engaged and furnish astrong hold. If turned in the opposite direction the driver slips over the inclines 3 and produces no other effect than the marring of the head. To withdraw the screw it is necessary to break off the head, or to cut or crush it in order to obtain a hold. The operation is thus rendered difficult or impossible of accomplishment by an unauthorized person without detection. The duplication or replacement of the screws may be prevented by the use of numbers or private marks stamped or impressed thereon.
The following is claimed asnew:
A fastening-screw constructed with a head, 3 having shoulders I for the impact of the driver in sinking the same, and opposing inclines 3 to reject the driver, so that the screw may not be withdrawn thereby, substantially as herein shown and described. I
To the foregoing specification of my improve ment in screws I have hereunto set my hand this 26th day of August, 1872.
FRANKLIN w. BEooKs.
Witnesses: M
OoTAvTUs KNIGHT, WALTER ALLEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US131843A true US131843A (en) | 1872-10-01 |
Family
ID=2201259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US131843D Expired - Lifetime US131843A (en) | Improvement in screws |
Country Status (1)
Country | Link |
---|---|
US (1) | US131843A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556155A (en) * | 1946-07-13 | 1951-06-05 | Domnic V Stellin | Socket head screw |
US2659952A (en) * | 1945-01-05 | 1953-11-24 | Simmons Fastener Corp | Fastening device |
US2954719A (en) * | 1957-10-24 | 1960-10-04 | Rudolph M Vaughn | Asymmetrical screw head slots |
US3159446A (en) * | 1961-11-13 | 1964-12-01 | Gen Time Corp | Pilferproof wall plate |
US3161450A (en) * | 1961-10-17 | 1964-12-15 | Gen Time Corp | Pilferproof wall plug |
US3233922A (en) * | 1963-07-29 | 1966-02-08 | Cast Iron Soil Pipe Inst | Pipe joint |
US4171662A (en) * | 1976-12-20 | 1979-10-23 | Wright Line Inc. | Security screw |
US5176479A (en) * | 1991-11-15 | 1993-01-05 | Ryobi Motor Products Corp. | Ball bearing pockets in a router depth of cut adjustment ring |
US5181813A (en) * | 1991-11-15 | 1993-01-26 | Ryobi Motor Products Corp. | Split ring lever clamping arrangement |
US5188492A (en) * | 1991-02-28 | 1993-02-23 | Ryobi Motor Products Corporation | Split ring clamping arrangement |
US20050135898A1 (en) * | 2003-03-10 | 2005-06-23 | Jory Bell | Screw and screw driver |
US20060036504A1 (en) * | 2004-08-11 | 2006-02-16 | Allocca William W | Dynamically classifying items for international delivery |
US20110283843A1 (en) * | 2008-07-31 | 2011-11-24 | Werner patrick | Screw Drive Design |
-
0
- US US131843D patent/US131843A/en not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659952A (en) * | 1945-01-05 | 1953-11-24 | Simmons Fastener Corp | Fastening device |
US2556155A (en) * | 1946-07-13 | 1951-06-05 | Domnic V Stellin | Socket head screw |
US2954719A (en) * | 1957-10-24 | 1960-10-04 | Rudolph M Vaughn | Asymmetrical screw head slots |
US3161450A (en) * | 1961-10-17 | 1964-12-15 | Gen Time Corp | Pilferproof wall plug |
US3159446A (en) * | 1961-11-13 | 1964-12-01 | Gen Time Corp | Pilferproof wall plate |
US3233922A (en) * | 1963-07-29 | 1966-02-08 | Cast Iron Soil Pipe Inst | Pipe joint |
US4171662A (en) * | 1976-12-20 | 1979-10-23 | Wright Line Inc. | Security screw |
US5188492A (en) * | 1991-02-28 | 1993-02-23 | Ryobi Motor Products Corporation | Split ring clamping arrangement |
US5181813A (en) * | 1991-11-15 | 1993-01-26 | Ryobi Motor Products Corp. | Split ring lever clamping arrangement |
US5176479A (en) * | 1991-11-15 | 1993-01-05 | Ryobi Motor Products Corp. | Ball bearing pockets in a router depth of cut adjustment ring |
US20050135898A1 (en) * | 2003-03-10 | 2005-06-23 | Jory Bell | Screw and screw driver |
US20060036504A1 (en) * | 2004-08-11 | 2006-02-16 | Allocca William W | Dynamically classifying items for international delivery |
US20110283843A1 (en) * | 2008-07-31 | 2011-11-24 | Werner patrick | Screw Drive Design |
US8549962B2 (en) * | 2008-07-31 | 2013-10-08 | Arnold Umformtechnik Gmbh & Co. Kg | Screw drive design |
US20140102264A1 (en) * | 2008-07-31 | 2014-04-17 | Arnold Umformtechnik Gmbh & Co. Kg | Screw Drive Design |
US9486900B2 (en) * | 2008-07-31 | 2016-11-08 | Arnold Umformtechnik Gmbh & Co. Kg | Screw drive design |
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