DE Patent: DE-1,182,157
|
Schlupffreier Schraubenzieher
Slip-free screwdriver
|
|
Patentee:
|
|
| Stanley Boleslaus Valiulis (exact or similar names) - Rockford, IL |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Jun. 12, 1959 |
| Granted: |
Nov. 19, 1964 |
Espacenet patent
Report data errors or omissions to steward
Jeff Joslin
|
|
Description: |
| "Screwdriver with a hollow, wedge-pointed blade shaft that is slidably fastened in the handle, a wedge-shaped, tapered handle that is rotatably mounted in the shaft, which under the action a steep screw-nut unit with a longitudinal movement of the shaft relative to the Shaft is rotated, a rotatably and slidably mounted slide being provided in the handle is, on one side of which is designed as a helical strip of the screw Screw-nut unit and on the other side of which the stem is attached, and one the strip surrounding, pre-tensioned coil spring between the slide and a guide for the Strip is arranged, characterized that the guide for the helical strip (21) in a known manner from a slot (26) in one in the handle (16) Fixed disc (20), with a metallic socket at the other end of the handle (13) with a polygonal bore (12) for receiving the appropriately designed end of the Shank (5) is provided. Considered publications: Swiss patent specifications No. CH-79219, 517; U.S. Patent No. 2,324,153." |
|
