| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Rotary shear attachment and tool for laminated plastic and other materials | US858060 | 1986-05-01 | US4646438A | 1987-03-03 | Donald B. Hessler |
| A rotary shear attachment and tool for laminated plastic and other materials is disclosed. The shear attachment comprises a frame which is fixed to an existing motor case and has an upper and a lower portion spaced apart and separated by a central portion. Driving and cutting wheels are positioned on the frame and are rotatably mounted for cutting the plastic and other materials. A chip breaker is positioned on the frame to break up the chip formed by the shear attachment and the frame has means associated with it for diverting one side of the plastic being cut in a direction away from the plane of the other side of the plastic. The novel rotary shear attachment may be incorporated into an improved rotary tool, may be incorporated into existing rotary tools and may also be used with a novel table for cutting a large sheet of plastic at a job site. | ||||||
| 182 | Rotary shear | US43386 | 1979-05-29 | US4275500A | 1981-06-30 | Howard D. Speer, Jr.; Mark A. Proett |
| An improved rotary power shear that includes an electric motor which drives, through a reduction gear assembly, a rotary shear assembly comprised of a driving shear wheel which rotates against a cooperating driven shear wheel. The design of the tool is characterized by a handle that extends above the motor housing and gear casing, and which supports the tool at one end from the gear casing and at the other end from the rear of the motor housing. In this manner the tool is balanced when held by the handle as the weight of the gear casing and cutting assembly at the forward end of the tool offsets the weight of the motor at the rearward end of the tool. In addition, the design of the tool is facilitated by the provision of a single bracket member that serves the multiple functions of supporting and biasing together the rotary shear wheels, providing a cover for the gear casing, and also providing a support for the stub shafts on which the gears are journalled. An overload release clutch is also incorporated into the reduction gear assembly to protect the tool from being damaged by excessive workpiece resistance. The preferred embodiment of the tool further includes a forward-and-reverse switching capability. | ||||||
| 183 | Grass trimming device | US697048 | 1976-06-17 | US4055890A | 1977-11-01 | Paul F. Seibold |
| The trimming device has a blade driven by a shaft to have each end pass over cutting teeth at the edge of a circular cutting plate. The drive mechanism is a motor having an enclosed speed reducing unit for driving a shaft at a low speed when rotating the blade. The circular cutting plate is secured to the bottom of the motor housing through the center of which the driven shaft extends. A bail for a handle having a switch and a receptacle for the prongs of a plug on a cord is pivotally mounted on the housing to be positioned at a small angle to the circular cutting plate and 90.degree. therefrom in a vertical position. An extension handle may be applied to the end of the short handle to have the device swing therefrom. | ||||||
| 184 | Roving cutter | US586206 | 1975-06-12 | US4001935A | 1977-01-11 | Duane D. Krohn; Samuel W. Culbertson |
| A light weight, compact roving cutter for chopping fiberglass roving into short fiber segments, and used in conjunction with a hand-held resin spray gun, has a mounting plate containing an air inlet port for driving an air motor carried thereon, a snap-on cutter rotor or roller driven by the air motor and carrying a plurality of blades secured by single fastening means, a friction roller cooperable with the cutter roller and blades thereof for breaking or cutting the roving, means accessible to the operator for adjusting the clearance between the rollers and the contact of the friction roller with the blades while the cutter is operating, and means for matching the discharge pattern of the cut segments of roving to the spray pattern of the resin spray gun, including air jet means supplied with pressurized air separate from that supplied to the motor. | ||||||
| 185 | Electric rotary pinking shears | US3621572D | 1970-05-18 | US3621572A | 1971-11-23 | KRUGER JAMES B |
| AN ELECTRIC ROTARY PINKING SHEARS HAS A PIVOTED ANVIL FOOT AFFORDING COMFORTABLE USE POSITIONS AND CONVENIENT STORAGE MEANS.
|
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| 186 | Fabric-cutting machine | US3602990D | 1968-11-08 | US3602990A | 1971-09-07 | STUMPF GUNTER |
| A pneumatically operated cutter in which the spent air is recovered and vented remotely of the machine.
|
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| 187 | Rotary cutter assembly | US17487662 | 1962-02-21 | US3167991A | 1965-02-02 | MILLER NORMAN T |
| 188 | Bevel cutting machine | US77448658 | 1958-11-17 | US2930123A | 1960-03-29 | CLARK FREDERICK G |
| 189 | Linoleum cutting machine | US76782747 | 1947-08-09 | US2487327A | 1949-11-08 | GANTER JR WILLIAM E |
| 190 | Carton cutter | US24731738 | 1938-12-23 | US2256630A | 1941-09-23 | SHIELD LANSING P |
| 191 | Paper box opening machine | US68087933 | 1933-07-17 | US1976150A | 1934-10-09 | STEIN WILLIAM P |
| 192 | Cutting machine | US13774926 | 1926-09-25 | US1666643A | 1928-04-17 | MAX EDELMAN |
| 193 | Cloth-cutting machine | US52687222 | 1922-01-04 | US1512124A | 1924-10-21 | HYMAN MAIMIN; AUGUST FREDDY |
| 194 | Cutter | US63947523 | 1923-05-17 | US1508869A | 1924-09-16 | ANDREW ASTRUP |
| 195 | Electric cloth-cutter | US39044720 | 1920-06-21 | US1395150A | 1921-10-25 | SCALFARO FRANK A; MCLEOD JOHN A |
| 196 | Lifter for cloth-cutting machines. | US13407416 | 1916-11-29 | US1259618A | 1918-03-19 | GURY JOHN B |
| 197 | Cigar-wrapper cutter. | US16953917 | 1917-05-18 | US1251656A | 1918-01-01 | HAGGERTY JAMES S; BEATY LAWRENCE N |
| 198 | Beet thinner and weeder. | US16846917 | 1917-05-14 | US1251059A | 1917-12-25 | LARSON WILLARD |
| 199 | Cake-cutter. | US9666516 | 1916-05-10 | US1204009A | 1916-11-07 | GOODWIN OSCAR J |
| 200 | Paper-trimming apparatus for paper-hangers' use. | US8108816 | 1916-02-29 | US1202435A | 1916-10-24 | SCARDINO PIETRO |
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