Rolling mill
AssigneeW. Durston Limited
InventorMatthew Durston
Life of this patent
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Abstract
A hand-powered jewellery rolling mill is disclosed. The mill comprises a support frame and a pair of opposed parallel cylindrical rollers rotatably mounted to the support frame. A drive shaft is connected to at least one of the rollers for rotation thereof. A manually rotatable handle is configured for providing a drive force to the drive shaft. The handle may be connected to the drive shaft through a high-ratio gear train. The rolling mill may further comprise an input shaft, rotatable by the manually rotatable handle. The input shaft may have a worm and a worm-to-gear coupling may transfer torque from the input shaft to the drive shaft.
Claims16
A hand-powered jewellery rolling mill comprising:
- a support frame;
- a pair of opposed parallel cylindrical rollers rotatably mounted to the support frame;
- a drive shaft connected to at least one of the rollers for rotation thereof;
- and
- a manually rotatable handle for providing a drive force to the drive shaft;
- further comprising
- an input shaft, rotatable by the manually rotatable handle, the input shaft having a worm and wherein a worm-to-gear coupling transfers torque from the input shaft to the drive shaft,
- wherein the drive shaft is coaxial with one of the cylindrical rollers and a rotary coupling is provided between the drive shaft and an axle of the roller, and
- wherein the rotary coupling is a tongue and groove coupling formed in opposed radial faces of the drive shaft and the axle.
A hand-powered jewellery rolling mill comprising:
- a support frame;
- a pair of opposed parallel cylindrical rollers rotatably mounted to the support frame;
- a drive shaft connected to at least one of the rollers for rotation thereof;
- and
- a manually rotatable handle for providing a drive force to the drive shaft;
- further comprising
- an input shaft, rotatable by the manually rotatable handle, the input shaft having a worm and wherein a worm-to-gear coupling transfers torque from the input shaft to the drive shaft,
- wherein the drive shaft, the input shaft and the worm-to-gear coupling are enclosed by a gearbox housing, and
- wherein the gearbox housing comprises:
- a body adapted for attachment to the rolling mill;
- a drive shaft bore extending through the body in a first direction;
- and
- an input shaft bore extending through the body in a second direction, perpendicular to the first direction;
- and wherein
- the drive shaft bore and the input shaft bore partially intersect to define a cavity for the worm-to-gear coupling.
Dependencies are inferred from the claim text.