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US 4,292,006 AGranted
Manufacture of ceramic ware
AssigneeService (Engineers) Limited
InventorGraham Davies
Life of this patent
Estimating the term…
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AssigneeService (Engineers) Limited
InventorGraham Davies
Estimating the term…
A handle-cutting device comprises a conveyor in the form of a horizontal table arranged to be rotated step-by-step to bring handle holders in turn to a handle-cutting station where the handle is lightly clamped. While the holder is stationary at the handle-cutting station, a rapidly rotating cutter (for example, rotating at 3,000 r.p.m.) having a contoured blade representing the profile of the wall of a cup bowl to which the handle is to be attached is progressively advanced towards the holder to remove surplus clay in thin slices from the handle. The blade is unconfined along those parts of its length which effect the cutting, being mounted on spaced apart supporting portions of a carrier, so that the small pieces of clay sliced away by the blade can escape from the cutter. The device ensures a high degree of conformity of the attaching surface of the handle to its intended configuration.
A method of removing from a cup handle surplus clay in such a manner as to provide an attaching surface having a high degree of conformity to its intended shape comprising rotatably mounting a cutter blade on supporting portions of a carrier which are spaced apart to leave the blade unconfined along that part of its length which effects the cutting, contouring the unconfined part of said blade so that when rotated it defines by its arcuate path a shape to which it is desired the attaching surface of the handle to conform, mounting the handle in a holder from which the surplus clay projects,
A handle-cutting device comprising a holder with a groove in it to receive and position a handle, the groove terminating at an edge of the holder over which surplus clay of a handle projects in the operation of the device, a carrier rotatable about an axis lying in a plane substantially parallel to the plane of said groove, a cutter blade mounted on supporting portions of said carrier which are spaced apart to leave the blade unconfined along that part of its length which effects the cutting, said blade being contoured such that when said carrier is rotated about its axis the cutting part of the blade defines by its arcuate path a shape to which it is desired the attaching surface of the handle shall conform, and means for causing relative lateral movement of approach and separation to take place between said axis of rotation of said carrier and the holder in the operation of the device, said means being arranged that in such relative lateral approach, the surplus clay of a handle is removed progressively in thin slices in a plurality of separate cuts with said slices escaping between said carrier and the unconfined part of said blade.
Dependencies are inferred from the claim text.