US152198A - Improvement in screw-drivers - Google Patents
Improvement in screw-drivers Download PDFInfo
- Publication number
- US152198A US152198A US152198DA US152198A US 152198 A US152198 A US 152198A US 152198D A US152198D A US 152198DA US 152198 A US152198 A US 152198A
- Authority
- US
- United States
- Prior art keywords
- screw
- driver
- drivers
- countersinks
- improvement
- 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
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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
- B25B15/00—Screwdrivers
Definitions
- This invention relates to a new and useful improvement in tools of every day-use; and consists of a combination of a screw-driver and one or more countersinks or other similar tools, the construction being as hereinafter described.
- Figure 1 represents the tool as when used for a screwdriver, the countersinks being turned up out ofthe way.
- Fig. 2 shows it as when the countersnk is ready for use.
- A is the screw-driver.
- B and C are two countersinks, one for iron a-nd one for wood.
- the screwdriver is arranged to be used in a brace; but it may have a handle, and be used as a common hand screw-driver, the countersinks being arranged and used as shown.
- These countersinks are identical in form and construction, with the exception of' the cutting ends, one, B, being made for iron, and the other one, O, for wood.
- the middle ot' the screw-driver is enlarged, a projection, D, being on two opposite sides, which projections are slotted longitudinally, through each of which slots is a pin, E.
- F represents a longitudinal slot in each of the countcrsinks. The pins E pass through these slots, and conne the countersinks to the screwdriver, and allow them to slide lengthwise.
- G is a small slit in the back ot' the head of each countersink, which receives the end ot' the screw-driver, as seen at H.
- the faces ot' the countersink are fitted tothe sides of the screw-driver, and the screw-driver turns the countersink as it would turn a wood-screw.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Connection Of Plates (AREA)
Description
1. A. wAKEFlELD.
Screw-Drivers.
No.l52,198. Patented1une15,1g74.
i navman. l l
l @www BY 4 K UNITED STATES PATENT OFFICE,
JAMES A. WIAKEFIELD, OF MINNEAPOLIS, MINNESOTA.
IMPROVEMENT IN SCREW-DRIVERS.
Specification forming part of Letters Patent No. 152,198, dated June 16, 1874; application filed May 1, 1874.
To all whom it may concern Be it known that I, J AMES A. VAKEFIELD, of Minneapolis, in the county of Hennepin and State of Minnesota, have invented a new and useful Improvement in Screw-Drivers, of which the following is a specification:
This invention relates to a new and useful improvement in tools of every day-use; and consists of a combination of a screw-driver and one or more countersinks or other similar tools, the construction being as hereinafter described.
In the accompal'lying drawing, Figure 1 represents the tool as when used for a screwdriver, the countersinks being turned up out ofthe way. Fig. 2 shows it as when the countersnk is ready for use.
Similar letters of reference indicate corresponding parts.
A is the screw-driver. B and C are two countersinks, one for iron a-nd one for wood.
Inthis example of my invention, the screwdriver is arranged to be used in a brace; but it may have a handle, and be used as a common hand screw-driver, the countersinks being arranged and used as shown. These countersinks are identical in form and construction, with the exception of' the cutting ends, one, B, being made for iron, and the other one, O, for wood.
The middle ot' the screw-driver is enlarged, a projection, D, being on two opposite sides, which projections are slotted longitudinally, through each of which slots is a pin, E. F represents a longitudinal slot in each of the countcrsinks. The pins E pass through these slots, and conne the countersinks to the screwdriver, and allow them to slide lengthwise.
Vhen the screw-driver is in use, the countersink's are drawn back toward the brace, as seen in the drawing, with the backs in contact with the screw-driver. When a countersink is required, it is turned on the pivot-pin E, as on a hinge, to the position seen in Fig. 2.
G is a small slit in the back ot' the head of each countersink, which receives the end ot' the screw-driver, as seen at H. The faces ot' the countersink are fitted tothe sides of the screw-driver, and the screw-driver turns the countersink as it would turn a wood-screw.
rlhis is a very convenient arrangement, and saves much time and annoyance in hunting up the proper tools and adjusting them in the brace.
It is obvious that other tools than countersinks may be connected with the screw-driver and operated in the same manner. I do not, therefore, confine myself exclusively to countersinks, but design the implement to embrace all tools which may be made to operate in the manner described. i
Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. One or more countersinks or other tools, in combination with a screw-driver, constructed and arranged to operate substantially as herein shown anddescribed.
2. The projection D and pin E, in combination with a screw-driver, substantially as and for the purposes described.
JAMES A. WA KEFIELD.
Vitnesses C. J. BARTLnsoN, ALBERT SMrrH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US152198A true US152198A (en) | 1874-06-16 |
Family
ID=2221610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US152198D Expired - Lifetime US152198A (en) | Improvement in screw-drivers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US152198A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423296A (en) * | 1944-06-08 | 1947-07-01 | Thomas D Crawford | Screw driver |
| US2560846A (en) * | 1946-05-22 | 1951-07-17 | Eldred E Caster | Reamer attachment for hacksaws |
| US2609019A (en) * | 1948-02-03 | 1952-09-02 | Roy Bullas | Multiple bit tool |
-
0
- US US152198D patent/US152198A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423296A (en) * | 1944-06-08 | 1947-07-01 | Thomas D Crawford | Screw driver |
| US2560846A (en) * | 1946-05-22 | 1951-07-17 | Eldred E Caster | Reamer attachment for hacksaws |
| US2609019A (en) * | 1948-02-03 | 1952-09-02 | Roy Bullas | Multiple bit tool |
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