Abstract: A drive shaft cover assembly for a drive shaft having a longitudinal axis including a stationary bracket having an axially extending flange at least partially surrounding the drive shaft and having one or more radially extending apertures therethrough. A cover member has a retaining portion sized to fit radially over the flange with apertures therein aligned with the apertures in the flange. A spring retainer is disposed radially within the flange and has a stud projecting radially outward through each aperture in the flange and through the aligned apertures in the cover member to retain the cover member on the flange. The spring retainer is resilient to enable the studs to be pushed radially inward to withdraw the studs from the apertures in the cover member to remove and remount the cover member on the flange without the use of hand tools.

Abstract: A safety cover structure for covering working sections such as a drive section and an operating section of an automatic machine from the exterior so as to be capable of being opened and closed to ensure safety. The safety cover structure includes a plurality of support columns arranged in a surrounding relation to the automatic machine; a top board supported horizontally on the support columns to cover the automatic machine; a safety cover disposed vertically and movably between adjacent support columns; a connecting member having flexibility and connected to the safety cover to suspend the safety cover; grooves for guiding the connecting member from the support column to the top board; a tension arm supported horizontally on the top board so as to swing horizontally in a horizontal plane along the top board and connected with the connecting member; and an urging member connected to the tension arm to urge the tension arm in a rising direction of the safety cover.

Abstract: A carrier made up of two housings includes a plurality of drive members that facilitate transferring a driving force between the two housings. When the carrier is used in a vehicle transmission, for example, the two housings preferably include generally cylindrical wall portions. A plurality of lanced drive members are formed on each of the housings. The two housings are interconnected so that the drive members on the first housing engage the drive members on the second housing and a rotary force imposed on one of the housings is transferred to the other.

Abstract: A protective casing with ring for shafts, in particular cardanic shafts. It comprises, coaxially, a casing, a sleeve ring, and a tubular element. A first end of the sleeve of the ring is destined to engage with a circumferentially groove of the joint, and a second end of the sleeve is adjacent to a constraining end of the casing encompassing the ring. The ring and the casing present, in their respective constraining ends, a multiplicity of hook shaped circumferentially equidistant protrusions, destined to be juxtaposed alternatively forming a circumferential throat for a split elastic locking ring. A rigid annular safety element may cover said constraining ends of the casing and of the ring.

Abstract: A drive shaft containment bracket adapted for attachment to a stationary vehicle support surface, the bracket including an elongated body having a mounting flange at one end and a drive shaft containment device at an opposite end. The elongated body has a length dimension sufficient to extend from a vehicle cross frame member supporting the transmission of the vehicle where said mounting flange is utilized to secure said bracket to the cross frame member and transmission casing, rearwardly beyond a universal joint connecting the drive shaft to the transmission to a location along the drive shaft where said containment device at least partially encloses said drive shaft.

Abstract: A protection device for a wide-angle transmission joint includes a first casing with a proximal end fixed to a ring sliding into a groove in a disc and a distal end bearing an extension inwardly folded. The casing has a first part covering the intermediate means as well as the zone which connects the latter with the yoke and a second part covering the yoke as well as the end of the transmission shaft. The connection between the two parts is realized by a section which is deformable under the action of the transmission shaft inclining when the joint is bent up to 80.degree..

Abstract: A protective cover assembly for universal joints which is particularly suited for commercial vehicles such as trucks and buses, as well as off-road vehicles, comprises forward, intermediate and rearward shields that overlie but do not touch respective universal joints. In one embodiment, the shields have outside brackets that attach to either the cover of a transmission or the cover of a differential gear mechanism and are adjustable inward and outward relative to the covers. In another embodiment, the shields have brackets that respectively have straps for connecting to the body underside frame rails of the vehicle and are adjustable forward and rearward to cover the universal joints the shields overlie.

Abstract: An improved automatic transmission has a reverse gear piston which can be engaged as a transmission brake. The piston is movable in a first direction and has a surface. A hydraulic means supplies transmission fluid to a space between the surface and the housing to engage the piston and removes the hydraulic fluid from the space to disengage the piston thereby releasing the transmission brake. In one embodiment, the hydraulic means has a passageway with the first cross-sectional area through the housing and a second cross-sectional area larger than the first cross-sectional area in the housing that is exposed to the space thereby reducing friction between the fluid and the second cross-section which reduces the release time of the fluid from the space. In another embodiment, the transmission has a means for adjusting the cross-sectional area of the passageway through the housing.

Abstract: A guard for shielding a rotating coupling interconnecting two rotating driveshafts. The coupling guard includes an arched cover sleeve formed from a flexible, planar sheet of material, preferably plastic, secured with a pair of brackets to a frame structure adjacent the rotating shaft coupling. The cover sleeve defines two opposed end openings, through which the rotating shafts extend, on opposite sides of the rotating shaft coupling. Preferably, the sheet of material forming the sleeve is scored with longitudinally running grooves, which enhance the flexibility of the sheet. Also, the coupling guard preferably includes a pair of arcuate end caps that cover the end openings and have central voids to permit the driveshafts to extend therethrough.

Abstract: A gear case assembly and lubricant retaining device therefore wherein the assembly includes a gear case having a hub and/or shaft receiving opening therein and a lubricant retaining device extending toward the interior of said case to reduce lubricant flow through said opening. A part of said lubricant retaining device acts as a diverter to restrict lubricant flow toward said opening and consequential potential losses therethrough.

Abstract: A shield assembly for a power take-off shaft protruding from a tractor has first and second generally vertical, laterally spaced side plates adapted to be positioned on opposite lateral sides of the shaft. A cover extends between the side plates and is adapted to be positioned above the shaft. The cover is pivotable about a horizontal pivot axis and movable in a generally linear direction between a first pivoting position and a second linearly displaced pivoting position. A positioning member is disposed on one of the cover and the first side plate, and first and second stops are disposed on the other of the cover and the first side plate. The first stop and positioning member are spaced approximately the same radial distance from the horizontal pivot axis when the cover is in the first pivoting position, and the second stop and positioning member being spaced approximately the same radial distance from the horizontal pivot axis when the cover is in the second linearly displaced pivoting position.

Abstract: A safety shield assembly wherein a base member is secured to a drive housing that in turn has therewithin a rotary member, with the base member having pivotally mounted thereto a door member, and the door member is biased into a first position extending over an opening within the drive housing and arranged for manual displacement relative to the housing opening, with a spring tube captured between the door member and the base member to bias the door member over the housing opening.

Abstract: A safety device used in case of rupture of a rotary shaft for preventing the shaft from rotating and for preventing broken portions thereof from falling, includes at least one safety element placed so as to retain the shaft to prevent it from falling. The peripheral surface of the shaft and a facing surface of the safety element are provided with mating devices that cooperate to prevent the shaft from rotating when a portion of the shaft is retained by said safety element due to the shaft rupturing. The device is particularly suitable for use with a shaft that winds up lifting straps for a raisable curtain or that winds up the curtain itself.

Abstract: A guard device for sewing machine disposed on a table composed of a first or fixed covering for covering over a lower portion of a belt, and a second or movable covering adapted to shield the belt other than that covered by the first covering. The first covering is provided with an open space or opening defined by its side walls and a lid hingedly mounted on a finger or engageable portion of a wall member of the first covering as to be self-opening or self-closing when a head of the sewing machine is in a collapsed position or in an upright position.

Abstract: A safety device for the roll space within a calender or other roll machine is disclosed. The rolls when rotating, excite oscillations in the beam at the resonant frequency of the beam. This can occur during start-up or during normal operation. The safety device of the present invention comprises a beam and additional mass that is oscillatorily suspended from the beam in order to reduce the amplitude of the beam oscillations at the beam resonant frequency. In addition, a damping element between additional mass and the beam is used to reduce any undesired oscillations due to newly created resonant frequencies introduced into the system.

Abstract: An electromagnetic clutch includes a clutch rotor of magnetic material which is rotatably supported on a bearing. An electromagnetic housing extends into an inner hollow space of the rotor. An annular magnetic coil is disposed within an annular hollow space of the electromagnetic housing. A magnetic armature plate faces the rotor and a predetermined axial air gap is formed therebetween. The armature plate is attracted to the rotor when the magnetic coil is energized. The rotor has an annular projection which extends from an axial end thereof. An annular groove is formed on an inner peripheral surface of the projection. A shield member for shielding a front surface of the electromagnetic clutch includes an annular portion, an open end, and a flange portion extending axially from a radial end of the annular portion. The flange portion includes a plurality of connecting members formed thereon for connecting the shield member to the rotor.

Abstract: An attachment connector for powered equipment such as a tractor or implement comprises a bearing (11) adapted to be locatable about a PTO output/input stub. The attachment connector may have a base plate portion (10) with a bearing (11) located therein which has a central aperture sized to be closely locatable about a PTO output/input stub of a tractor or implement, the base plate (10) also carrying a tubular portion (12) extending from one face thereof and formed to provide one part of a connector mateable (13) with a further part carried on an attachment, structure being (14) provided to prevent rotation of the base plate (10) and tubular portion (12) with rotation of the PTO output/input stub.

Abstract: This invention is directed to a protector for a single or front chain sprocket of a bicycle. The sprocket assembly is mounted on a pedal shaft and is non-rotatably coupled with a sprocket-side pedal. The protector comprises a disc which is adapted to be fixed by a fixing mechanism with respect to the pedal shaft and having a diameter which is sufficient for preventing soiling or damaging clothing or body portions of the user of the bicycle.

Abstract: A multistage front gear apparatus for a bicycle having a device for restoring a chain having fallen off which includes a shelf portion (51) extending axially of the rotary shaft, a chain engaging portion (52) extending from a free end region of the shelf portion radially outwardly of the rotary shaft, and a guide portion (53) disposed peripherally of the shelf portion for guiding the chain away from the chain engaging portion. The chain engaging portion (52) has opposite edges in a rotating direction extending substantially at right angles to the shelf portion. The guide portion (53) is formed on peripheral side surfaces of the shelf portion, and includes inclined guide surfaces extending from positions of connection to the chainwheel to peripheral regions of the shelf portion.

Abstract: A shaker with an open frame, sides, a flat bottom and open ends. The shaker has pre-lubricated sealed bearings and a self-lubricating plastic gear with a metal gear, which not only educes the amount of friction between gear teeth, reduces maintenance and noise resulting from the gears and enables applicant to provide an integral open frame in which the gears are supported. The gears may be inserted into the frame through the openings in the frame. This provides for easy assembly and the absence of lubricant is especially important in the food industry and other industries where contamination of products would be objectionable.

Abstract: A drill chuck and revolving spindle guard for protecting a person operating machine with a revolving spindle comprising: a mounting bracket for attachment about a machine part having a revolving spindle; a pawl adapted to fall into a slot in a block attached to the mounting bracket; a locking block through which a threaded shaft is disposed to permit pivoting for swinging the guard in and out of working position in relation to a work-piece; a threaded shaft around which a compression spring is spirally wound to permit height adjustment of the guard; a compression spring for holding the guard in a locked position; a locking nut disposed at a base of the threaded shaft around which the compression spring is wound to hold the guard fast after height or position adjustments; a guard bracket upon which a base portion of the nut rests; a guard having a semi-circular configuration; whereby the guard bracket is attached to an arc of the semi-circular guard so that when the guard is moved to a drill change position by

Abstract: A safety shield for insertion between the engine and transmission of a racing car or vehicle adapted for racing to protect the occupants, engine and transmission by interrupting or deflecting flexplate wheel fragments or debris in case of failure due to high engine speed. The safety shield is formed from a metal plate which has a centrally located, cup-shaped depression and a circular opening for the engine shaft. The depression includes a cylindrical wall portion and terminates in an inwardly directed flange portion. The depth of the depression is configured to encircle the flexplate wheel and its associated ring gear, so that in case of fragmentation, all wheel or gear fragments will be contained within the shield.

Abstract: A protective casing (33) for the end yoke (31) of a transmission shaft with locking pin (29) and a rotating sleeve (39) for unlocking the aforementioned pin (29), is characterized in that it includes an external sleeve (45) that does not rotate with the aforementioned yoke, covers the rotating sleeve (39), and includes a mechanism (65 and 67) designed to operate the aforementioned rotating sleeve (39). The locking pin (29) can easily be released from the exterior, and the protective casing remains stationary while the yoke is rotating.

Abstract: A shield for a dynamic cutting tool having a drive mechanism. A plurality of depressions are formed in a member surrounding the outer surface of the cutting tool mechanism or directly into the outer surface of the cutting tool mechanism. A flange member having a body portion at least partially surrounds the surface bearing the depressions and is movable relative to the same. A locking protuberance for selectively engaging any of the plurality depressions found on the accessible surface of the member is also provided and connects to the flange member.

Abstract: A resilient sealing device is provided for accommodating tolerance variations between a lubricant holding case and a hub member. The device has a sealing face including deformable lips which are urged toward the hub by a resilient column and deformable legs held in a retaining channel, with both the column and the legs allowing the lips to recede back into the channel while the edges of the sealing face are held by the edges of the channel.

Abstract: A sheet rolling machine including a plurality of parallel cylindrical rolls has mounted forwardly thereof a guard structure, wherein the guard structure utilizes an upper and lower parallel arrangement of semi-cylindrical members. The members may optionally include adjustable linkage and magnetic mounting means.

Abstract: A bicycle sprocket cover is formed as a unitarian molded disk of sufficient diameter to overlie and project radially outwardly beyond the teeth of a bicycle drive sprocket. The cover is attached to the sprocket by bolts, the heads of which are then covered by decorative panels having outwardly projecting tabs that are received in complimentary slots formed in the sprocket cover.

Abstract: A derailleur guard adapted to be mounted on a bicycle frame and shaped to protect a rear derailleur from impacts from a generally sideward direction. The derailleur guard includes a forward portion shaped to engage a chain stay of a bicycle frame, a rearward portion shaped to engage a dropout attached to the chain stay, and a loop portion extending between the forward and rearward portions and shaped to extend sidewardly from the frame about a rear derailleur mounted on the dropout of the frame.

Abstract: A conveyor is shown having an endless material transporting member running between an idler sprocket at one end and a drive sprocket at the other, both supported in a frame of the conveyor. A drive motor is used to drive the drive sprocket, and hence the conveyor. A controlling device for the motor is provided having a pivotally mounted slack sensing lever having a first rest position spaced apart beneath an upper flight of the endless material transporting member. A counterweight, resting on a stop urges the lever in position. The lever is fixed to a pivot pin, which has a trip lever attached. Upon slack in the chain deflecting the slack sensing lever, the pivot pin rotates moving the trip lever which in turn activates a microswitch controlling the motor. Upon sufficient deflection, the motor will be de-activated.

Abstract: A PTO master safety shield is provided having a cut-out in the upper surface thereof. A door is pivotally mounted within the shield to close the door and biased by springs into the closed position. If the center link of a 3-point hitch is lowered to where it contacts the lip of the door, it will simply press the door downwards. Upon subsequent lifting of the center link, the springs will move the door back into the normal position. The main body of the master field also is pivotally mounted to flip up to a raised position. The door is provided with arms which engage slots at the back of the master shield. If the master shield is left in the raised position and the center link is lowered to where it contacts the door, the door will pivot, the arms of the door will lift the back end of the master safety shield and force it forward until it falls down into its normal position.

Abstract: A shield for an automotive compressor clutch assembly comprises a resilient hollow part that attaches to the rotatable clutch pulley by means of an annular lip located along the inside of the hollow part and an annular groove located along the outer rim of the pulley, thereby covering the outside surface of the pulley together with the clutch mechanism located adjacent thereto. A cooperating notch and land arrangement prevents relative rotational movement between the shield and the pulley.

Abstract: The exposed end of a rotating shaft of a machine is covered with a protective cover which affords a measure of safety for those working around the machine. The cover can be quickly mounted on or removed from the machine without the need of any special tools or the like. The cover is of simple, sturdy construction.

Abstract: A tractor power take-off shaft shield assembly having fixed side plates projecting from a tractor wall on either side of the shaft(s), a top plate hinged to the wall and sized to pivot between the side plates, and a slot in one and preferably both side plates each receiving a slot follower pivotably attached to the top plate, which is set in normal, lowered or raised position by positioning the slot follower(s). Preferred embodiments include each slot having an upper slot section angled downwardly somewhat from horizontal to support the slot follower when the tractor is not in use and cause it to automatically return the top plate to its normal position during tractor use. Some preferred embodiments include sidewalls on the top plate adjacent to the side plates.

Abstract: For sealing the axle opening in a traction motor gearcase on the motor side thereof, an annular member of elastomeric material has a sleeve portion that is adapted to be clamped to a motor-supporting axle bearing thrust flange and a radially outwardly projecting flange portion that is adapted to fit inside an annular groove formed in an edge of the gearcase sidewall that surrounds the hub of an axle gear adjacent to the thrust flange. The seal further comprises a reinforcing ring having concentric outer and inner sections: the outer section is attached to the flange portion of the annular member to ensure a tight fit in the aforesaid groove, and the inner section extends from the groove to within close proximity of the axle gear hub and forms, with the axle-gear end of the sleeve portion, an annular trough for collecting axle bearing lube oil that escapes through the gear hub-thrust flange interface.

Abstract: An easily removable tubular shield assembly for shielding a drive shaft extending to the front wheels of a work vehicle, such as a tractor. The shield assembly has a plurality of telescoping tubular members forming a continuous tube, and one or more removable devices to lock the tubular members into fixed relative axial positions. The tubular shield can be shortened to expose the ends of the drive shaft and facilitate complete or partial removal of the drive shaft.

Abstract: A shield assembly for the front drive line of a mechanical front-wheel drive tractor includes a one-piece, non-telescoping shield which covers the full length of the drive line and its U-joints. The shield receives and is supported by a quill at its rear end and is supported and received by a ring at its front end. The ring has brackets for bolting to the tractor front axle housing. Covers prevent debris from entering the front end of the shield.

Abstract: A tractor power take-off shaft shield assembly having a pair of spaced side plates on either side of the shafts, a movable top plate which slideable between an extended position covering the shafts and a retracted position exposing the shafts, and locking devices adjustably holding the movable top plate in position across the side plates. This shield assembly improves accessibility to and visibility of power take-off shafts and ease of operation in attachment and detachment of implements.

Abstract: A guard for a power transmission shaft such as a tractor pto shaft 18,20 comprises a flexible convoluted tubing 24 with end couplings 26 which together totally enclose the rotating parts. The tubing 24 can extend and retract axially to suit a variety of shaft lengths, and can flex transversely to accommodate turning of the tractor/implement combination. A tube 34 journalled on bearings 36, or equivalent bearing means, prevents damage to the tubing 24 by the shaft 18,20.

Abstract: A coupling clutch according to the teachings of the present invention is shown in its most preferred form as including first and second hubs having first and second splined friction discs received thereon. The first friction disc is biased away from the second friction disc and is movable towards the second friction disc by a piston reciprocally mounted to a housing and rotatably mounted to the first friction disc by a bearing mounted therebetween. The second friction disc is substantially prevented from sliding on the splines with the second hub. The splines between the second friction disc and the second hub allow the second friction disc to cant to compensate for axial angular misalignment of the first and second hubs. The guard is shown according to the teachings of the present invention in its most preferred form as including a plurality of ring members held in a spaced relation by bars. The ring members have a shape complementary to and for receipt on a first shell of a housing.

Abstract: Apparatus suitable for containing a rotatable body such as a flywheel comprising at least two parts which together define a housing within which the rotatable body can be rotated. The parts of the housing are not rigidly fixed together but instead they are secured together by a length of high tensile strength tape which is wrapped around the parts to provide at least one layer of tape, overlapping at its edges which envelopes and is in contact with at least 50%, and preferably at least 70%, of the surface area of the housing. An impact of the rotatable body, or a part thereof, with the inner surface of the housing causes movement and/or deformation of at least one of the parts of the housing. This movement and/or deformation is resisted by the tape and the point loading resulting from the impact is thereby transformed into a loading over the surface of the parts wrapped with tape.

Abstract: A protective element for a hand-held power tool with a rotary tool, such as a grinding disk, a circular saw, or the like, has a protective member with cut-outs having increased portions, an additional member connectable with the protective member, and connecting elements for connecting the additional member to the protective member and including a plurality of holding screws having heads extending through the increased portions of the cut-outs and engageable behind the protective member, wherein the increased portions have the shape of the plan view of the screw heads and are provided at the same end of the elongated cut-outs, and a locking projection is provided near at least one increased portion in the path of the screw head of the screw sliding in the respective cut-outs.

Abstract: An improved guard for an articulated torque transmitting shaft such as the power transmission shaft connecting a tractor with an agricultural implement is disclosed. The guard according to the invention comprises bellows members for fitting over U-joints at either end and telescoping tubes connecting the bellows. The telescoping tubes are locked to the respective bellows by L-shaped keys which extend through slots formed through the tube and through the bellows and which have circumferentially extending tabs which ride in grooves formed in the universal joints, to locate the juncture of the tube and bellows with respect to the joint. In the preferred embodiment, the entire assembly is constructed of plastic.

Abstract: A flip-up shield assembly for a tractor PTO in which the shield can be moved from a normal position in which it extends above and to the sides of the PTO shaft to and held in two raised positions, one of which is intended for use when a drive shaft having an oversized universal joint guard is attached to the PTO shaft and the other of which is intended for use simply during the coupling of a drive shaft to the PTO shaft. The shield can be moved to and held in an additional protection position which is located below the normal protection position to provide additional space for an adjustable implement hitch which is adjustably carried by a vehicle above the PTO shaft.

Abstract: This safety shield is collapsible and for use with a vertical drill press to protect the press operator from injury. The shield includes a pair of interconnected telescoping hollow cylinders, with the top cylinder of elongated shape that is mounted to a non-rotating, vertically movable drill housing member, while the lower cylinder is also of elongated shape and it is suspended from the top cylinder and is capable of telescoping with respect to the top cylinder. The top end of the top cylinder has a novel adjustable clamping collar so the collar may expand and contract, and fastening means are used for tightening and loosening the collar with respect to the drill housing member. The lower cylinder of the shield is also fitted with an enlarged collar adjacent its top end of about the same size as the adjustable collar of the top cylinder.

Abstract: A protective cover assembly is disclosed for a grease fitting formed on the universal joint of a Cardan shaft. The assembly includes a cover plate, a support member and a slideable sleeve. The cover plate projects outward from a gear case and encircles a portion of the Cardan shaft which is connected between the gear case and a transmission. The support member straddles the cover plate and is attached to the gear case such that it encircles a portion of the Cardan shaft and is aligned adjacent to the universal joint. The support member has a stepped outer surface with a radially aligned attachment mechanism formed on the smaller diameter surface. The slideable sleeve protrudes onto the smaller diameter surface and the attachment mechanism cooperates with a mating surface on the sleeve to form a quick attachable and releaseable fit between the two parts.

Abstract: A universal flexible sprocket shield adapted for pedal crank attachment by any user of single, three speed, or ten to fifteen speed bicycle. A modified shield is adapted for original equipment installation as a flexible shield extension to existing sprocket plates.

Abstract: To form a protective cover for an elongated machine element, such as a feed spindle or the like (1), a tubular structure (7) which may be formed of a plurality of parallel strips (7a) has edges which are formed with an interengaging, interlocking but separable ridge or rib-groove construction (10, 9) similar to a slide fastener. To provide for secure interengagement and covering of a traveling element (2-4) on the spindle, a guide cone (16) is secured to the traveling element surrounding the tubular structure. The guide cone may include a hub (4) formed with a part-circumferential opening or openings (15) through which the opened guide tube portions can pass to permit the traveling element to move while providing continuous protection to the spindle upon movement thereof, the guide cone insuring reclosing of the rib-and-groove behind the movable element, and opening in advance thereof. The tube may be formed, in addition, with longitudinal guide grooves (23) in which closing elements can engage (FIGS. 8-11).

Abstract: A lifting jack having a first tubular frame member, a second tubular frame member movably interconnected coaxially with the first frame member, and a selectively operable drive mechanism for moving the second frame member relative to the first frame member. The drive mechanism includes a shaft and a bracket fastened to the second frame member and having two aligned apertures for pivotally mounting a shaft. A protective cover is provided for the drive mechanism and is removably fastened to the shaft.

Abstract: The present invention contemplates a shield arrangement for the power take-off shaft of a tractor or like piece of equipment. The arrangement includes an inverted, U-shaped shield member which is pivotally mounted to the tractor for movement between raised and lowered positions, wherein in the lowered position the power take-off shaft is shielded. The arrangement further includes a spring-loaded, strut-like link pivotally mounted within the shield member. The link member is adapted to contact the power take-off shaft for supporting the shield member in its raised position, with the link member configured to disengage the take-off shaft upon initiation of the shaft's rotation for automatically lowering the shield member.