Tools – Wrench – screwdriver – or driver therefor – Flexible
Patent
1977-08-24
1979-04-24
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Flexible
B25B 1352
Patent
active
041505921
ABSTRACT:
An improved wrench particularly adapted for use with cylindrical, delicate workpieces such as chrome-plated or plastic pipes, is provided with a resilient, spiralled strip adapted to be simply wrapped around the circumference of the workpiece for gripping and turning the latter when an elongated handle attached to one end of the strip is manipulated by the user. The strip is provided with a straight stretch adjacent the handle, which is held in substantial parallelism with the longitudinal axis of the handle, and is effective in translating an increased amount of the force applied to the handle into a usable tension force on the strip in a direction tangent to the circumference of the workpiece, rather than into an inwardly directed force that is either wasted or may damage the workpiece. The handle includes an arcuate concave surface end portion which is adapted to complementally engage a section of the spiralled strip overlying a substantial area of the surface of the workpiece, thereby distributing any inward force at the end of the handle over a relatively large area of the workpiece and avoiding the application of a concentrated inner force against the workpiece. The strip may be retractably stored in a compartment formed within the handle, and the user may withdraw a selected length of the strip from the handle to permit use of the wrence with workpieces having various circumferential dimensions.
REFERENCES:
patent: 747679 (1903-12-01), Bliss
patent: 1521342 (1924-12-01), Thomas et al.
LandOfFree
Strap tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Strap tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strap tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1986155