Geometrical instruments – Straightedge type – Cord type
Patent
1990-02-14
1991-05-14
Cuchlinski, Jr., William A.
Geometrical instruments
Straightedge type
Cord type
33756, 33761, 242 848, B44D 338
Patent
active
050144375
ABSTRACT:
The invention relates to the improved structure for an ink cup, particularly such structure having upper and lower cover bodies, a thread winding wheel, a manual turning wheel and an inverted T-shaped pressing disk. The interior of the inverted T pressing disk encloses a compression spring and is set inside the manual turning wheel by means of a hollow circular rod. The manual turning wheel cooperates with a circular hole in the upper cover body, and is urged into contact with the upper cover body by the compression spring in the pressing disk. A spiral spring in the thread winding wheel automatically rewinds the thread except when the manual turning wheel is squeezed against the cover body to stop the thread winding wheel.
REFERENCES:
patent: 712283 (1902-11-01), Filson
patent: 1272270 (1918-05-01), Jarvio
patent: 1945842 (1934-02-01), Witchger
patent: 2398805 (1946-04-01), Pomeroy
patent: 4121785 (1978-10-01), Quenot
patent: 4192078 (1980-03-01), Lore et al.
patent: 4197656 (1980-04-01), Lane et al.
patent: 4443944 (1984-04-01), Beesley
patent: 4565011 (1986-01-01), Karger
patent: 4592148 (1986-06-01), Longenette
patent: 4730783 (1988-03-01), Lamson
patent: 4765557 (1988-08-01), Kahmann
patent: 4773162 (1988-09-01), Lin
patent: 4813145 (1989-03-01), Jasey, Jr. et al.
patent: 4926562 (1990-05-01), Hwu
Cuchlinski Jr. William A.
Wirthlin Alvin
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