Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1982-09-07
1984-03-06
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
33138, 242 848, B65H 7548, G01B 310
Patent
active
044349521
ABSTRACT:
A power returnable coilable rule employs a cartridge having a hub rotatably seated and trapped in apertures in the end walls of the spool. The hub has a multiplicity of tabs at each of its ends which interlock with bosses on the inside surfaces of the outer casing end walls so as to prevent relative rotation thereof. The power spring is attached at its inner end to the hub and at its outer end to the inner end of the coiled measuring blade. Prior to assembly in the rule casing, a retainer clip secures the blade and spring in predetermined condition on the spool. This clip has an arm overlying a spool end wall with means adjacent its inner end interengaged with the tabs of the hub, and a flange at its outer end which depends along the outer coil of the blade and interengages with the tape hook so that the opposing forces on its ends produced by the coiled spring maintain the retainer clip in assembly.
REFERENCES:
patent: 3689004 (1972-09-01), Brown et al.
patent: 3716201 (1973-02-01), West
patent: 3802641 (1974-04-01), Saito
patent: 4067513 (1978-01-01), Rutty et al.
patent: 4068383 (1978-01-01), Krebs
patent: 4228589 (1980-10-01), Chemay
Czerwinski Frank G.
Rutty Edward C.
Jillions John M.
The Stanley Works
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