Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1985-09-26
1987-09-22
Schmidt, Frederick R.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 572, 81 5714, B25B 2100
Patent
active
046947124
ABSTRACT:
A body is provided including a first end defining a vertically extending outwardly opening notch therein and at least one door is pivotally mounted from a corresponding side of the body end for swinging between a closed position across the body end and an open position extending outwardly from the body end. A motor driven drum is jouralled within the body on the side of the notch away from the direction in which the notch opens and an endless flexible drive members includes a positive bright passing about the drum. The free swinging end of the door has a roller journalled therefrom and the side of the first end of the body across which the door extends has a guide roller journalled therefrom, the rollers generally paralleling the drum. The elongated flexible drive member includes position bights passing about the guide rollers and an inverse or negative bight disposed within the notch and adapted to extend about an elongated member extending lengthwise through the notch and adapted to be turned by the drive member, the inverse or negative bight of the drive member opening outwardly between the guide rollers in a direction inclined at least 45.degree. relative to the direction in which the notch opens.
REFERENCES:
patent: 2862690 (1958-12-01), Mason
patent: 3799010 (1974-03-01), Guier
patent: 4079640 (1978-03-01), Golden
patent: 4471674 (1984-09-01), Doss
patent: 4512216 (1985-04-01), Callegari et al.
Jacobson Harvey B.
Schmidt Frederick R.
Vaught Bradley I.
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