| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Method and apparatus for slitting belt | US3685756D | 1969-02-26 | US3685756A | 1972-08-22 | MARX NORBERT M; LICHTENWALTER CARL G |
| Belt slitting machine and method including two sets of spaced lifting arms each of which supports a spindle which is rotatably secured to the lift arms by a retractable pin nested in an end of each spindle. The lift arms are hydraulically positionable both vertically and laterally. The machine includes a set of drive and pressure rollers for pushing the belt into a knife which is pivotally mounted for piercing the belt from above. A second set of drive and pressure rollers are located downstream of the knife to pull the belt as it is being pushed. To apply tension, the drive roller of the tension set is of a diameter slightly larger than the drive roller of the pusher set. The spindles are rotated by hydraulic motors which are in circuit with the hydraulic motor for the drive rollers and with suitable valves so that the rotation of each spindle is controlled independently of the drive rollers to assure tensioning of the belt regardless of the speed of the drive rollers and regardless of the direction of rotation. Adjustable guides are spring biased in position to guide a cutout portion of a belt and are automatically disengaged at the end of the cut-out portion. The method involves feeding the belt, piercing, slitting, guiding, and positioning steps.
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| 102 | Thong cutting device | US78058358 | 1958-12-15 | US2978808A | 1961-04-11 | REED DENNY L |
| 103 | Scarfing machine | US69375357 | 1957-10-31 | US2865192A | 1958-12-23 | COLLIER ALBERT V |
| 104 | Machine for automatically producing apparel belts and like strap bodies | US19100150 | 1950-10-19 | US2690910A | 1954-10-05 | ALLEN TUCK JAMES |
| 105 | Belt reeler and cutter | US7875649 | 1949-02-28 | US2569589A | 1951-10-02 | TRISSELL ROBERT F |
| 106 | Belt punching device | US3196548 | 1948-06-09 | US2528282A | 1950-10-31 | MELBERG FREDERICK T |
| 107 | Strip cutting machine | US61209245 | 1945-08-22 | US2481342A | 1949-09-06 | PRESBY LEROY Q |
| 108 | Belt cutting, punching, and grooving device | US59687545 | 1945-05-31 | US2428742A | 1947-10-07 | GEORGE ROTHE |
| 109 | Cutting tool | US58334445 | 1945-03-17 | US2413544A | 1946-12-31 | CARPENTER RICHARD M |
| 110 | Hand tool for making strips from sheet material | US55284244 | 1944-09-06 | US2387450A | 1945-10-23 | EMMETT KING SAMUEL |
| 111 | Strap cutting machine | US24939039 | 1939-01-05 | US2205573A | 1940-06-25 | MEDWICK MAURY P; EULA MARTE A |
| 112 | Cutting machine | US71994034 | 1934-04-10 | US1993614A | 1935-03-05 | MILLER CHARLES G; FINTLEMAN WILLIAM R |
| 113 | Apparatus for making a belt splice | US59191732 | 1932-02-09 | US1900402A | 1933-03-07 | SCULLEY WILLIAM J |
| 114 | Belt cutter | US46116130 | 1930-06-14 | US1805163A | 1931-05-12 | BUCKNER THOMAS E |
| 115 | Belt-skiving machine | US35937129 | 1929-04-30 | US1797979A | 1931-03-24 | GRIFFITH WINFRED S |
| 116 | Combination belt punching and cutting machine | US5707525 | 1925-09-18 | US1736559A | 1929-11-19 | EDWIN VOLLRATH |
| 117 | Pinking machine | US16044327 | 1927-01-11 | US1682606A | 1928-08-28 | ABRAHAM DVILNSKY |
| 118 | Thong cutter | US68499423 | 1923-04-27 | US1621718A | 1927-03-22 | GRISWOLD LESTER E |
| 119 | Belt-cutting machine | US69646724 | 1924-03-03 | US1612282A | 1926-12-28 | GOODWIN WILLIAM G; FREEDLANDER ABRAHAM L |
| 120 | Shearing cutter | US74821724 | 1924-11-06 | US1609365A | 1926-12-07 | KNOTT FRANK W |
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