Cutting – Cutting motion of tool has component in direction of moving... – With tool speed regulator
Patent
1982-12-07
1984-07-17
Meister, James M.
Cutting
Cutting motion of tool has component in direction of moving...
With tool speed regulator
74393, 74437, 83324, 83572, 192 85AT, 192 91A, 192101, B23D 2512
Patent
active
044598874
ABSTRACT:
The drum drive in a rotary shear includes a pair of driving and driven surge gears and a coupling of which the driving and driven companion members are drivingly connected with the driven surge gear and with one of the drums. The shear is adjustable for varying the length of stock cut on each revolution of the drums, and such adjustment also requires shear synchronization with the fed stock which is accomplished by disconnecting the coupling members and angularly adjusting the surge gears relative to the drums. The coupling of featured lock type has companion members with cylindrical surfaces which are normally in such an interference fit with each other as safely to transmit without slippage torque in excess of the maximum required for stock-cutting operation of the shear, yet these coupling members are disconnectible for shear synchronization by applying pressurized fluid to their cylindrical interface. In installing this featured lock-type coupling in shears instead of prior gear-type couplings, the formation of intolerable burrs at the edges of stock cut in shears with gear-type couplings is totally eliminated.
REFERENCES:
patent: 2822047 (1958-02-01), Orr et al.
patent: 2933940 (1960-04-01), Hallden
patent: 2957363 (1960-10-01), Ingham et al.
patent: 3585874 (1971-06-01), Ingham et al.
Meister James M.
Spruegel Walter
The Hallden Machine Company
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