US99781A - Improvement in screw-drivers - Google Patents
Improvement in screw-drivers Download PDFInfo
- Publication number
- US99781A US99781A US99781DA US99781A US 99781 A US99781 A US 99781A US 99781D A US99781D A US 99781DA US 99781 A US99781 A US 99781A
- Authority
- US
- United States
- Prior art keywords
- screw
- driver
- drivers
- improvement
- socket
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 210000002832 Shoulder Anatomy 0.000 description 2
- 235000021028 berry Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/12—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using magnetic means
Definitions
- the nature of my invention consists in combining with the iron of an ordinary screw-driver, a cylinder containing a cone-shaped socket.
- Said cyl'iinler'sl ides upm the iron of the screw-driver, and is kept; doivn over the point of the screw-driver by a sprinar so'as to enclose' the head ofthe screw, and thus form a guard to prevent the point of the screw-driver from slippingr from the niek in the head of the screw, as Well as t-o prevent the head of the screw grisn Splitting.
- the socket hobos conical itwill iit various sized screws'.
- Figure l is aperspective view showing' my invention coni plete.
- Figure 2 is a longitndinal section of my invention.
- A is an ordinary screw-driver, and may be tted to a bit-stock, or be'nrovided with an ordinary handle.
- B is a metallic cylinder fitting on to the end of the screwdriver, .as shown.
- the lower end has a conical socket, 1), and is also slotted, as shown at 3, to admit the pointof thev screwdriver to slide freely.
- S is a spring attached to A, and so arranged as to 'exert a pressure, against the shoulders H H of the Y socket-piece B, thuslloliling the end l) of the socketpiece beyond the. point C of the screw-driver.
- '.lhe socket l is made conical, so that it may iit ⁇ the head ot' different sized screws.
- lts advantages are that it serves as a kind of guide t'or upplying'the driver to the screw; it serves to prevent the driver from slipping from the nick of the screw., and also to prevent the head of' the screw from splitting.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
'mina @eine geen omit.
Lette/rs Patent No. 99,781, dated February 15, 1870.`
IMPROVEMENT IN SCREW-DRIVERS.
The Schedule referred to in these Letters Patent and making part oi the same To all whom it may concern Be it known that I, WILLIAM H. MART'XN, of Boston, in the county of Suffolk, and State of Massaclnv,
setts, have invented certain new and useful Improv-ements'in Screw-Drivers; and I do hereby declare that J the iollowlni,r is a full and exact description thereof,
reference being had to the accompanyingrdrawings, and
to the4 lett-ers of reference marked thereon.
The nature of my invention consists in combining with the iron of an ordinary screw-driver, a cylinder containing a cone-shaped socket. Said cyl'iinler'slides upm the iron of the screw-driver, and is kept; doivn over the point of the screw-driver by a sprinar so'as to enclose' the head ofthe screw, and thus form a guard to prevent the point of the screw-driver from slippingr from the niek in the head of the screw, as Well as t-o prevent the head of the screw frein Splitting. The socket heilig conical itwill iit various sized screws'.
To enable others skilled in the art to make and use my invention, I will proceell to -ilescrihe its construction and use.
Drawings. Figure l is aperspective view showing' my invention coni plete.
Figure 2 is a longitndinal section of my invention. A is an ordinary screw-driver, and may be tted to a bit-stock, or be'nrovided with an ordinary handle.
B is a metallic cylinder fitting on to the end of the screwdriver, .as shown.
The lower end has a conical socket, 1), and is also slotted, as shown at 3, to admit the pointof thev screwdriver to slide freely.
S is a spring attached to A, and so arranged as to 'exert a pressure, against the shoulders H H of the Y socket-piece B, thuslloliling the end l) of the socketpiece beyond the. point C of the screw-driver.
'.lhe socket l) is made conical, so that it may iit` the head ot' different sized screws.
The use of my invention is too obvious to require ilescription.
lts advantages are that it serves as a kind of guide t'or upplying'the driver to the screw; it serves to prevent the driver from slipping from the nick of the screw., and also to prevent the head of' the screw from splitting.
What Iclailn my invent-ion, vand desire to secure h v Letters Patent ofthe United States, is
The combination of' fthe screw-driver A G Wit-l1 the tube or socket B, whenall the parts are constructed to operate as shown and described and for the purpose set forth. f
WM; ll. MARTYN.
Witnesses:`
FRANK G. PARKER, A. HUN'. BERRY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US99781A true US99781A (en) | 1870-02-15 |
Family
ID=2169240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US99781D Expired - Lifetime US99781A (en) | Improvement in screw-drivers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US99781A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060075856A1 (en) * | 2004-10-08 | 2006-04-13 | Tilton Michael A | Screwdriver attachment |
| US20060086213A1 (en) * | 2004-10-26 | 2006-04-27 | Fu-Hsiung Wu | Screw driver structure |
| US20120247282A1 (en) * | 2009-11-06 | 2012-10-04 | Josef Weber | Screwing Device |
| WO2021133431A1 (en) | 2019-12-26 | 2021-07-01 | Raytheon Company | Low-profile fastener retaining device with single-sided retention and release |
-
0
- US US99781D patent/US99781A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060075856A1 (en) * | 2004-10-08 | 2006-04-13 | Tilton Michael A | Screwdriver attachment |
| US7069826B2 (en) | 2004-10-08 | 2006-07-04 | Mike Tilton | Screwdriver attachment |
| US20060086213A1 (en) * | 2004-10-26 | 2006-04-27 | Fu-Hsiung Wu | Screw driver structure |
| US20120247282A1 (en) * | 2009-11-06 | 2012-10-04 | Josef Weber | Screwing Device |
| US9021925B2 (en) * | 2009-11-06 | 2015-05-05 | Josef Weber | Screwing device |
| WO2021133431A1 (en) | 2019-12-26 | 2021-07-01 | Raytheon Company | Low-profile fastener retaining device with single-sided retention and release |
| US11446797B2 (en) | 2019-12-26 | 2022-09-20 | Raytheon Company | Low-profile fastener retaining device with single-sided retention and release |
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