Offset feed control

Claim 2

An accessory device for mounting a hydraulic check on that type of machine have a reciprocative mechanism with a rotative spindle for rotating and feeding tool-bits into a workpiece, said spindle having an axis, said machine having a primary frame supporting said reciprocative mechanism, said machine being provided with a flexible, sinuous, force transmissive member having two ends, said mechanism including a coupling surface to which one end of said sinuous member may be coupled, said check having a housing and a fluid-damped plunger reciprocative relative to said housing, said plunger having a receptive surface adapted to receive external forces capable of moving said plunger, said accessory device comprising: a secondary frame demountably attachable to said primary frame, a support structure carried by said secondary frame and adapted to hold said hydraulic check in an offset position relative to said mechanism, which said receptive surface laterally spaced from the centerline of said spindle, force translocative means for transmitting movement from said sinuous member to said receptive surface and comprising: a movable, engageable member having a working stroke substantially in a plane parallel to the direction of movement of said plunger and having an impelLer portion positioned in engageable alignment with said receptive surface; there being means provided on said engageable member for attaching the other end of said sinuous member, and bearing means supported by said secondary frame for retaining and guiding said engageable member, said coupling surface being in a position nearer the axis of said spindle than said receptive surface occupies.

Claim 3

The subject matter of claim 1, said bearing means including a race, said engageable member being of greater length than width and arranged to slide longitudinally within said race, said engageable member having structure at each end supporting at least one abrasion-resistant slidable pad which bears against the surface of said race to resist canting moments due to forces transmitted through said engageable member.

Claim 4

An accessary device for mounting a hydraulic check on that type of machine having a reciprocative mechanism for rotating and feeding tool-bits into a workpiece, said check having a housing and a fluid-damped plunger reciprocative relative to said housing, said plunger having a receptive surface adapted to receive external forces capable of moving said plunger, said mechanism including a rotative spindle having an axis, said machine having a primary frame supporting said mechanism, said accessory device comprising: a secondary frame demountably attachable to said primary frame, a support structure carried by said secondary frame and adapted to hold said hydraulic check in an offset position with said receptive surface laterally spaced from the centerline of said spindle, force translocative means for transmitting movement from said reciprocative mechanism to said receptive surface and comprising: a movable, flexible, sinuous, force transmissive member having a body portion and primary and secondary ends, there being a longitudinal centerline extending throughout its length, bearing means attached to said secondary frame for supporting and guiding the body portion of said sinuous member; a movable, engageable member having a working stroke substantially in a plane parallel to the direction of movement of said plunger and having an impeller portion positioned in engageable alignment with said receptive surface; bearing means supported by said secondary frame for retaining and guiding said engageable member; means securing said sinuous member at its primary end to said engageable member, and anchor means shaped and constructed to fit a portion of the secondary end of said sinuous member and also a portion of said reciprocative mechanism and adapted to attach said secondary end to said reciprocative mechanism with the centerline of the secondary end of said sinuous member in a position nearer the axis of said spindle than said receptive surface occupies.

Claim 5

An accessary device for mounting a hydraulic check on that type of machine having a reciprocative mechanism for rotating and feeding tool-bits into a workpiece, said check having a housing and a fluid-damped plunger reciprocative relative to said housing, said plunger having a receptive surface adapted to receive external forces capable of moving said plunger, said mechanism including a rotative spindle having an axis, said machine having a primary frame supporting said mechanism, said accessory device comprising: a secondary frame demountably attachable to said primary frame, a support structure carried by said secondary frame and adapted to hold said hydraulic check in an offset position with said receptive surface laterally spaced from the centerline of said spindle, force translocative means for transmitting movement from said reciprocative mechanism to said receptive surface and comprising: a movable, flexible, sinuous, force transmissive member having a body portion and primary and secondary ends, there being a longitudinal centerline extending throughout its length, bearing means attached to said secondary frame for supporting and guiding the body portion of said sinuous member; a movable, engageable member having a working stroke substantially in a plane parallel to the direction of movement of said plunger and having an impeller portion positioned in engageable alignment with said receptive surface; bearing means supported by said secondary frame for retaining and guiding said engageable member; means securing said sinuous member at its primary end to said engageable member, and anchor means shaped and constructed to fit a portion of the secondary end of said sinuous member and also a portion of said reciprocative mechanism and adapted to attach said secondary end to said reciprocative mechanism with the centerline of the secondary end of said sinuous member in a position nearer the axis of said spindle than said receptive surface occupies.

Claim 6

The subject matter of claim 3, said anchor means, subsequent to attachment of said secondary end to said reciprocative mechanism, including a swivelable member adapted to permit said sinuous member to swivel relative to said reciprocative mechanism about an axis parallel to the axis of said rotative spindle.

Claim 7

The subject matter of claim 3, said anchor means being adapted to be attached against the edge of a flat-faced member forming a part of said reciprocative mechanism, said member having two substantially flat and parallel faces, said edge extending between said faces and having a substantially semi-circular concave shape, said anchor means comprising: a base member shaped to fit within and contact said concave shape, said base member having attached thereto two flange portions shaped to overlie opposed portions of said flat faces, means adapted for drawing together said flange portions in a clamping action, said base member being provided with a bore, and a threaded arbor attachable to said sinuous member, said arbor being pivotally supported within said bore and supporting an adjustable nut against one of said plane faces.

Claim 8

The subject matter of claim 3, said accessory device including a compressed-aIr-operated clutching device for said plunger said clutching device being attachable adjacent said housing, and being constructively adapted to be connected by an air tube to a source of compressed air, said clutching device being of the type equipped with mechanism so constructed and arranged as to alternately grip and release said plunger when actuated by pulses of compressed air, there being resilient means operative to cause automatic extension of said plunger relative to said housing when said plunger is freed of external forces and said clutching device is released.

Claim 9

The subject matter of claim 3, said machine having an electrical control system, there being resilient means operative to cause automatic extension of said plunger relative to said housing when said plunger is freed of external forces, said accessory device including a compressed-air-operated clutching device for said plunger attached adjacent said check housing, said clutching device being of the type equipped with mechanism so constructed and arranged as to alternately grip and release said plunger when actuated by pulses of compressed air, said accessory device also including an electrically controlled valve adapted for transmitting pulses of compressed air to said clutching device, said valve being supported by said structure and constructively adapted to be connected by an air tube to said clutching device, by electrical conductors to said control system, and by an air hose to a supply of compressed air.

Claim 10

The subject matter of claim 7, and a cooling device comprising a manually operated valve and a jet tube provided with at least one aperture supported in position to permit air escaping from said aperture to impinge on said housing, said valve being adapted to regulate air flow to said jet tube, said valve being adapted to be connected to communicate with the inlet port of said electrically operated valve by tubing, thereby to be automatically supplied with compressed air whenever said electrically controlled valve is connected to said supply of compressed air.

Claim 11

Apparatus for adapting a hydraulic check for use on that type of machine having a reciprocative mechanism for rotating and feeding tool-bits into a workpiece, said check having a housing and a fluid-damped plunger reciprocative relative to said housing, said plunger having a receptive surface adapted to receive external forces capable of moving said plunger, said mechanism including a rotative spindle having an axis, said machine having a frame supporting said mechanism, said apparatus being supportable by said frame and comprising: force translocative means and structure adapted to retain said translocative means and to hold said hydraulic check in an offset relationship to said axis, said force translocative means comprising: a movable, flexible, sinuous, force transmissive member having a body portion and primary and secondary ends, there being a longitudinal centerline extending throughout its length, a reciprocative, engageable member having a working stroke substantially in a plane parallel to the direction of movement of said plunger and having an impeller portion disposed to engage said receptive surface secured to said plunger to move said plunger during said working stroke, bearing means adapted to retain and guide said sinuous member and said engageable member; means adapted to secure said sinuous member at its primary end to said engageable member, and anchor means shaped and constructed to fit a portion of the secondary end of said sinuous member and a portion of said reciprocative mechanism and adapted to secure said secondary end to said reciprocative mechanism with the centerline of the secondary end of said sinuous member in a position nearer the axis of said spindle than said receptive surface of the plunger occupies, so that movement may be transmitted from said reciprocative mechanism through said sinuous member and on through said engageable member to said plunger.

Claim 12

Apparatus for adapting a hydraulic check for use on that type of machine having a reciprocative mechanism for rotating and feeding tool-bits into a workpiece, said check having a housing and a fluid-damped plunger reciprocative relative to said housing, said plunger having a receptive surface adapted to receive external forces capable of moving said plunger, said mechanism including a rotative spindle having an axis, said machine having a frame supporting said mechanism, said apparatus being supportable by said frame and comprising: force translocative means and structure adapted to retain said translocative means and to hold said hydraulic check in an offset relationship to said axis, said force translocative means comprising: a movable, flexible, sinuous, force transmissive member having a body portion and primary and secondary ends, there being a longitudinal centerline extending throughout its length, a reciprocative, engageable member having a working stroke substantially in a plane parallel to the direction of movement of said plunger and having an impeller portion disposed to engage said receptive surface secured to said plunger to move said plunger during said working stroke, bearing means adapted to retain and guide said sinuous member and said engageable member; means adapted to secure said sinuous member at its primary end to said engageable member, and anchor means shaped and constructed to fit a portion of the secondary end of said sinuous member and a portion of said reciprocative mechanism and adapted to secure said secondary end to said reciprocative mechanism with the centerline of the secondary end of said sinuous member in a position nearer the axis of said spindle than said receptive surface of the plunger occupies, so that movement may be transmitted from said reciprocative mechanism through said sinuous member and on through said engageable member to said plunger.

Claim 13

The subject matter of claim 9, and resilienT means continuously urging said engageable member in a direction opposite to that of its working stroke to prevent looseness in said sinuous member.

Claim 14

The subject matter of claim 9, said bearing means adapted to retain and guide said sinuous member being an axle and a wheel rotative thereon.

Claim 15

The subject matter of claim 9, said flexible, sinuous member comprising a chain of hinged links, one of said links including a threaded element permitting adjustment in the working length of said link.

Claim 16

The subject matter of claim 9, said apparatus including a compressed-air-operated clutching device for said plunger, said clutching device being attachable adjacent said housing and being of the type equipped with mechanism so constructed and arranged as to alternately grip and release said plunger when actuated by pulses of compressed air, there being resilient means operative to cause automatic extension of said plunger relative to said housing when said plunger is freed of external forces and said clutching device is released.

Claim 17

The subject matter of claim 9, there being resilient means operative to cause automatic extension of said plunger relative to said housing when the plunger is free of external forces, said apparatus including a stroke limiter of the type having a stop portion held in overlapping engageable alignment with said receptive surface of the plunger by a columnar portion, said columnar portion being attached adjacent said check housing and being slidably adjustable parallel to the direction of movement of said plunger to limit the extension of said plunger a variable amount.