Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1976-05-07
1977-04-19
Smith, Al Lawrence
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
1523014, 1523019, B24D 1306
Patent
active
040180140
ABSTRACT:
A hub structure for a rotary finishing wheel having a rotational axis and being adapted for replaceably mounting a plurality of circumferentially-spaced pack units each of which includes a flap-like member of fill material having a radially outer finishing portion for engaging a workpiece and a radially inner slot-engaging portion for mounting the pack unit. The hub structure includes a plurality of substantially identical hub sections which may be fitted together to form a generally cylindrical hub wall whose outer surface is provided with a plurality of integrally formed, circumferentially-spaced, quasi-cylindrical, key-hole-type slot formations each having a longitudinal slot axis parallel to the rotational axis. Each slot is adapted to telescopically and replaceably receive the slot-engaging portion of a flap-like member for mounting the pack units for limited hinge-type pivotal movement about the slot axis. Plate members, slot plugs or bolt-like, slot-engaging elements are used to axially retain the slot-engaging portions within the slots.
In a first embodiment, the hub structure includes a pair of hub portions each having a generally semi-circular cross-section and integrally formed, radially inwardly disposed clamp seats adapted to clampably engage a shaft for rotation therewith. In a second embodiment, the hub structure includes four arcuate sections adapted to be fitted together in an edgewise overlapping manner to form the outer cylindrical hub wall. A plurality of separate clamping assemblies are disposed within the hub wall and each includes a pair of brackets hub (1) for securing the four arcuate sections together to retainably form the cylindrical hub wall and (2) for clamping the hub wall to the shaft for rotation therewith.
REFERENCES:
patent: 2970333 (1961-02-01), Jones
patent: 2978725 (1961-04-01), Whitman
patent: 2978726 (1961-04-01), Park
patent: 3939521 (1976-02-01), Clark
patent: 3942210 (1976-03-01), Clark
Belanger, Inc.
Godici Nicholas P.
Smith Al Lawrence
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