Abstract: The invented Sander with Orbiting Platen and Abrasive includes a platen, an abrasive secured to the platen, and a motor connected to the platen to move the platen and abrasive in an orbit or circular pattern The motor is connected to the platen by a belt that extends around at least one drive shaft, where the shaft includes two ends with a step between the ends so that when the shaft is rotated around one end's longitudinal axis, the step causes a portion of the shaft and the platen to orbit around that axis. The preferred embodiment of the invented sander includes a frame, a conveyor, first and second drive shafts that support a brace and that cause the brace to move in a first orbit, second and third drive shafts that are supported by the brace and connected to an orbit so that when the second and third drive shafts are rotated, the platen moves in a second orbit, and a plurality of rubber or synthetic rubber stabilizers positioned between the brace and platen.

Abstract: A reciprocating device for a polishing roller of an emery-polishing machine includes a connect device pivotally connected with a bearing base for a support shaft of a polishing roller to fit in, a belt wheel fixed on the connect device to rotate the support shaft together with the polishing roller, and a reciprocating device having a belt wheel, a worm engaging a worm wheel to rotate a rotating shaft to move an eccentric member fixed on the upper end of the rotating shaft. Then the eccentric member rotates eccentrically to move back and forth to move a shaft sleeve of the support shaft of the polishing roller so that the polishing roller may also move sidewise back and forth in addition to its rotation to upgrade polishing effect against wooden works.

Abstract: A roller swaying device for an emery belt machine includes a machine body provided with a machine base on top, two rollers respectively having its support shaft axially pivoted with the groove hole of the machine base, and a fit device provided at a preset position in the machine base and having a belt wheel capable to be activated to rotate and a shaft hole for receiving and activating the support shaft to rotate and move transversely there in. Besides, a swing device is fitted at a preset position in the machine body and has a swaying connecting rod capable to make the support shaft and the roller move to and fro transversely, obtaining a comparatively good grinding effect.

Abstract: An eyeglass lens grinding apparatus, which performs bevelling on an eyeglass lens while sufficiently reducing the variation in the size of the bevel being formed so that the finished lens can be fitted snugly in the wearer's eyeglass frame.

Abstract: A wave beveling machine is disclosed which produces a wave bevel on a glass work piece. The machine includes a feed path that is adapted to receive a glass work piece and which includes a plurality of spaced-apart treatment heads adjacent the feed path and adapted to sequentially engage the edge region of the work piece as the work piece is moved along the feed path. Each of the plurality of heads includes at least one contact region adapted to contact the edge region of the work piece, and one or more of the heads is adapted to abrade glass from the edge region when in contact with the edge region. The machine further includes a treatment head positioning system adapted to cause the contact surfaces of the plurality of heads and the edge region of the work piece to be engaged and cyclically moved in an oscillating path with respect to each other to produce the wave bevel on the edge region. The machine may further include one or more conveyors that support and move the work piece along the feed path.

Abstract: An oscillating belt sander or spindle sander is disclosed. The sander includes a motor shaft that extends upwardly through a worktable that supports a workpiece. The motor shaft supports a belt sander or spindle sander sanding surface. A combined motor and mechanical drive transmits rotational and reciprocating motion to the motor shaft which includes input and output motor shaft ends. The motor operates to impart rotational motion through the output motor shaft end while the mechanical drive is connected to the input motor shaft end and also imparts reciprocating motion through the output motor shaft end. The output motor shaft end facilitates interchangeable mounting of a spindle sander sleeve or a sanding belt. Thus, the sander is readily adaptable for conversion to a belt sander or spindle sander, as may be desired.

Abstract: An oscillating spindle sander having a spindle rotatably mounted in a cabinet. An external end of the spindle is adapted to receive a sanding drum. An upper cam pulley is fixedly attached to the spindle and a lower cam pulley is rotatably attached to the spindle within the cabinet. The upper and lower cam pulleys have face-to-face annular cam surfaces having complementary sinusoidal contours with diametrically opposite lobes and diametrically opposite valleys. The upper and lower cam pulleys have a toothed rim connected by individual drive belts to a common drive pulley rotated by an electric motor. The number of teeth on the toothed rims of the upper and lower cam pulleys are different, causing the upper and lower cam pulleys to rotate relative to each other. The annular cam surfaces cause the upper cam pulley and the spindle to be oscillated in a vertical direction in response to the relative rotation between upper and lower cam pulleys.

Abstract: A honing tool for elliptical bores uses a unique rotary to linear to radial translation mechanism to translate the primary rotary motion of the drive shaft into axial motion of rods and sleeves within the drive shaft, which ultimately wedge the honing stones out, and pull them rigorously back in, in the desired elliptical pattern, with no loss of bore accuracy. A cam sleeve rotating with the drive shaft has undulating cam grooves that push and pull a pair of cam followers together and apart with every quarter turn. The cam followers shift a rod and sleeve up and down to wedge the honing stones in and out. The shape of the cam groove and the angle of the wedges are predetermined so as to create the proper elliptical pattern.

Abstract: A variable reciprocating and rotating sanding apparatus comprises a drive shaft that is partially surrounded by first and second cams. The cams cooperate to form a cam track. A cross shaft is connected to the drive shaft and extends outwardly therefrom. The cross shaft is disposed in the cam track and serves to drive the cams in response to rotation of the drive shaft. An adjustable housing surrounds the cams and supports a sanding surface. The housing comprises a tapered housing and an expansion sleeve. The expansion sleeve has a plurality of slots allowing the diameter of the expansion sleeve to expand as the expansion sleeve is slid over the tapered housing. The expansion sleeve expands outwardly against the sanding sleeve to frictionally support the sanding sleeve.

Abstract: An oscillating spindle sander having a spindle rotatably mounted in a cabinet. An external end of the spindle is adapted to receive a sanding drum. An upper cam pulley is fixedly attached to the spindle and a lower cam pulley is rotatably attached to the spindle within the cabinet. The upper and lower cam pulleys have face-to-face annular cam surfaces having complementary sinusoidal contours with diametrically opposite lobes and diametrically opposite valleys. The upper and lower cam pulleys have a toothed rim connected by individual drive belts to a common drive pulley rotated by an electric motor. The number of teeth on the toothed rims of the upper and lower cam pulleys are different, causing the upper and lower cam pulleys to rotate relative to each other. The annular cam surfaces cause the upper cam pulley and the spindle to be oscillated in a vertical direction in response to the relative rotation between upper and lower cam pulleys.

Abstract: An oscillating spindle sander having a spindle rotatably mounted in a cabinet. An external end of the spindle is adapted to receive a sanding drum. An upper cam pulley is fixedly attached to the spindle and a lower cam pulley is rotatably attached to the spindle within the cabinet. The upper and lower cam pulleys have face-to-face annular cam surfaces having complementary sinusoidal contours with diametrically opposite lobes and diametrically opposite valleys. The upper and lower cam pulleys have a toothed rim connected by individual drive belts to a common drive pulley rotated by an electric motor. The number of teeth on the toothed rims of the upper and lower cam pulleys are different, causing the upper and lower cam pulleys to rotate relative to each other. The annular cam surfaces cause the upper cam pulley and the spindle to be oscillated in a vertical direction in response to the relative rotation between upper and lower cam pulleys.

Abstract: A combined motor and mechanical drive that is used with an oscillating spindle sander is disclosed. The oscillating spindle sander has a worktable for supporting a workpiece. A spindle extends upwardly through the worktable and has a sanding surface. An electrical motor is supported by the worktable and includes a shaft for imparting rotational motion to the spindle. The mechanical drive is contained within a housing that is supported by the motor and is connected to the motor shaft for imparting reciprocal or axial motion in addition to rotary motion to the spindle. The mechanical drive includes a speed reducer that is coaxial with the motor shaft. The speed reducer drives a cam follower that engages a cam in the housing for imparting reciprocal motion to the spindle at a rate much less than the rotational speed imparted to the motor shaft by the motor. The speed reducer includes a cycloidal gear that engages a complementary ring gear provided in the housing.

Abstract: An apparatus is disclosed for linearly displacing a rotatable spindle relative to an object. The apparatus includes a support that is connectable to the spindle such that translation of the spindle relative to the support in a first direction is restrained, a rotatable shaft which is connected to the support such that translation of the shaft relative to the support in the first direction is restrained, and a rotational drive system rotatably connected to the shaft and rotatably connectable to the spindle, to transmit rotational drive from the spindle to the shaft. The apparatus also includes a contact piece eccentrically mounted to the shaft, wherein the contact piece has a contact surface thereon for contact with the object. Rotation of the shaft varies a distance, measured in the first direction, between the support and a portion of the contact surface contacting the object, such that the spindle is linearly displaceable relative to the object.

Abstract: An oscillating spindle sander having a spindle rotatably mounted in a cabinet. An external end of the spindle is adapted to receive a sanding drum. An upper cam pulley is fixedly attached to the spindle and a lower cam pulley is rotatably attached to the spindle within the cabinet. The upper and lower cam pulleys have face-to-face annular cam surfaces having complementary sinusoidal contours with diametrically opposite lobes and diametrically opposite valleys. The upper and lower cam pulleys have a toothed rim connected by individual drive belts to a common drive pulley rotated by an electric motor. The number of teeth on the toothed rims of the upper and lower cam pulleys are different, causing the upper and lower cam pulleys to rotate relative to each other. The annular cam surfaces cause the upper cam pulley and the spindle to be oscillated in a vertical direction in response to the relative rotation between upper and lower cam pulleys.

Abstract: An assembly for converting a conventional drill press into an oscillating spindle sander is disclosed. The oscillating spindle sander assembly is comprised of an auxiliary motor which is adapted to be mounted on a drill press. An eccentric drive is attached to the rotating shaft of the auxiliary motor and is used to drive a push rod in a lateral reciprocating motion. The opposite end of the push rod is attached to one of the spindle spokes of the drill press, and causes it to move in a radially reciprocating motion which induces the drill press spindle, drill chuck and a sanding tool mounted therein, to move up and down in an oscillating motion. The oscillating spindle sander assembly of the invention can be easily disabled and the converted drill press returned to normal operation by removing the push rod from the spindle spoke of the drill press.