Abstract: A slat angle adjusting mechanism for a window blind includes a shell, a worm gear rotatably disposed in the shell, and a rotationally driving unit rotatably disposed in the shell and including combinable first and second rotationally driving shafts. The first rotationally driving shaft is located in the shell and has a worm portion engaged with the worm gear, a cone-shaped abutting portion and an embedding portion with non-circular cross-section, which are connected with the worm portion in order. A top end of the second rotationally driving shaft is located in the shell and has an axial hole with non-circular cross-section and two opposite fastening portions each formed at a terminal end thereof with a hooking claw. As a result, the first and second rotationally driving shafts are combinable by the consumer, preventing themselves and the slats from damage during packaging and transportation.

Abstract: The invention relates to an operating element (11) having a support part (13) which can be mounted on a device housing, in particular on a housing of a laboratory device, for example a laboratory stirrer, and having a rotary knob (15) which is held on the support part, is rotatable about an axis of rotation, is provided with a permanent magnet (17) and is additionally adjustable relative to the support part in the axial direction between a released position and a depressed position, wherein, as a result of a magnetic force acting between the support part and the rotary knob, the rotary knob can be reset from the depressed position into the released position.

Abstract: The refrigerator includes an ice maker; an ice bucket; a transfer member configured to transfer ice stored in the ice bucket; a drive motor unit configured to generate a driving force for driving the transfer member; a first coupler connected to the transfer member; and a second coupler separably coupled to the first coupler and coupled to the drive motor unit. The first coupler includes an insertion portion insertable into the second coupler, and a first inclined portion to guide the insertion portion to be inserted into the second coupler. The second coupler includes a seating portion to receive the first coupler, and a second inclined portion to guide the first coupler to the seating portion.

Abstract: A developing apparatus includes a developer carrying member configured to carry developer, and a developer supply member configured to supply the developer to the developer carrying member, the developer supply member including a shaft, first and second driving members disposed at a first end and a second end of the shaft, respectively, and a toner supply unit disposed between the first end and the second end of the shaft, wherein the first driving member receives a driving force for rotating the developer supply member, and the second driving member outputs the driving force, and wherein the second driving member is mounted to the shaft without play in a rotational direction of the developer supply member with respect to the shaft.

Abstract: An accessory attachment for a driven fastener hand tool is disclosed comprising a mounting block having an attachment channel and an indexing guide feature. A plate for covering a fastener driving channel of the fastener tool has a nose end with chamfered edges on opposing sides towards the fastener driving channel and the attachment channel has opposing lips for seating against the chamfered edges of the nose end of the plate. One or more bolts through the mounting block at a bottom of the attachment channel press the nose end of the plate causing the opposing lips of the mounting block to press against the chamfered edges thereby securing the mounting block to the nose end of the plate. Alternately or additionally, the mounting block can be used to support a range of accessories including, a non-marring pad, a light, such as an LED, a level, and/or an edge guide.

Abstract: A tolerance ring comprising a body including a plurality of sidewall segments, each sidewall segment having a thickness and a height, wherein the body has an aspect ratio, as measured by a ratio of the height of the sidewall segment to the thickness of the sidewall segment, of no less than 2:1.

Abstract: A vehicle has a transfer case that is configured to receive power from a transmission, and transfer the power to one or both of a front axle and a rear axle. The transfer case has an output, such as an output rod, that delivers the power to a differential on one of the axles. A driveshaft has a single constant-velocity joint thereon. A first shaft of the driveshaft is directly connected to the output of the transfer case by a fixed connection, such as a spline connection, that inhibits axial slipping. The first shaft is connected on its other end to the constant-velocity joint. A second shaft of the driveshaft is connects to the constant-velocity joint to the differential. The driveshaft can also have a clamp at the splint to inhibit axial slipping at the spline connection.

Abstract: According to some aspects, supports are provided for producing artificial tissue scaffolds.

Abstract: Coupling assemblies are provided for maintaining a secure connection between surgical devices utilizing a shaft-and-pinion configuration and powered drive shafts. The coupling assemblies include a clip to be disposed without or within a pinion for receiving and securing a drive shaft member. The coupling assemblies are designed to maximize restriction of movement between the drive shaft and clip, but avoid impeding the rotational motion of a pinion.

Abstract: A rotational assembly comprises a first shaft having a plurality of circumferentially arranged axially extending outer splines on an outer surface thereof and a second shaft having a plurality of circumferentially arranged axially extending inner splines on an inner surface of an axially extending shaft recess. The first shaft is located with the shaft recess such that the outer splines are engaged with the inner splines. At least one biasing element is also provided which is arranged to rotationally bias the first and second shafts towards one another such that the driving faces of the inner and outer splines are forced together.

Abstract: A system is described for hooking and unhooking a carrier bag with respect to the tank of a motorcycle. The system comprises a first group of components suitable to be fixed to the carrier bag and a second group of components suitable to be fixed to the tank. The first group of components comprises a flexible ring provided with a plurality of locking teeth elastically projecting inwards of such a flexible ring. The locking teeth are coupled with an annular flange of the second group of components to obtain the hooking of the carrier bag to the tank. On the flexible ring there is a hand-driven mechanism for the radial retraction of the locking teeth to generate a radial displacement of such locking teeth, allowing disengagement between the flexible ring and the annular flange and, hence, obtaining the disengagement of the carrier bag from the tank.

Abstract: A suspension assembly includes at least one suspension arm having a suspension joint structured to vary the height of a vehicle dependent on the operative orientation of the suspension arm and suspension joint when connected to the vehicle. The suspension joint includes two bushing members each formed of a resilient material and two retaining assemblies, wherein each retaining assembly is disposed in a retaining relation to a different one of the two bushing members on opposite sides of one end of the suspension arm. Either each of the bushing members or each of the two retaining assemblies includes a first section and a second section being of different, predetermined thicknesses. While the suspension arm and suspension joint may be produced as equipment of original manufacture, a conventional suspension arm may be repaired or retrofitted by replacing its original suspension joint with a modified suspension joint.

Abstract: A fluid operated wash brush is provided. The wash brush includes a casing having a downwardly opening top cover. The casing includes a liquid inlet for connection to a fluid supply. The wash brush also includes a rotary wash brush and a mounting shaft supported by the casing for relative rotation on which the rotary wash brush is carried. A retention mechanism is carried on a distal end of the mounting shaft for releasable engagement and disengagement with the rotary wash brush.

Abstract: A drive coupling assembly (10) for attaching two shafts includes a coupler body (11) and a locking clip (12). The body (11) has a splined opening (23) which is adapted to receive one shaft, and an aperture (24) which is adapted to receive a drive shaft (13) of a motor (14). A slot (25) is formed in coupler body (11) and the slot (25) communicates with the aperture (24). The clip (12) is positioned in the slot (25) and includes a spring tab (33) which can engage an undercut (40) in the shaft (13) to maintain the drive coupling assembly (10) on the shaft (13).

Abstract: An object clamp includes first and second clamp portions having recesses therein defining a generally circular cylindrical opening for receiving an object to be clamped. The first and second opposing clamp portions have at least one pair of opposing ends when in a preclamped state and at least one fastener for urging the ends towards each other when in a clamped state. At least one relief area is formed in the recesses and is deflected into engagement with the object when the object clamp is in the clamped state. The object to be clamped may be a bicycle steering tube, a bicycle handle bar, or a bicycle seat tube, for example.

Abstract: Exemplary embodiments are provided of slider mechanisms for slidably opening and closing portable communications terminals. In one exemplary embodiment, a portable communications terminal includes a main body and a slider body sliding on the main body. The slider mechanism includes a first slider member fixed to one of the main body and slider body and a second slider member fixed to the other one. The second slider member is slidably engaged with the first slider member. A zigzag spring is disposed between the first and second slider members. One end portion of the zigzag spring is rotatably supported on one of the first and second slider members and the other end thereof is rotatably supported on the other one of the first and second slider members. The zigzag spring is formed of a first zigzag portion and a second zigzag portion having spring characteristics different from the first zigzag portion.

Abstract: Proposed is a connecting point between two tool parts with a device, comprising an elastic element, for effecting a defined angular position of rotation between the tool parts. Said connecting point is characterized in that the elastic element (23) in a first area (43) is clamped to the first tool part (3) in such a manner that in connecting the tool parts (3, 7) a second area (25) projects into the path of motion of the second tool part (7) so that it is deflected by said tool part and is deformed reversibly.

Abstract: A fastening device for interconnecting two parts, comprising a longitudinally variable bolt designed to be inserted through a hole in a first part and engage the edge of an opening in a second part. The bolt is further configured to rotate about an axis that runs generally transversely across the longitudinal axis of the bolt, using the edge of the opening in the second part as a sliding track. The bolt defines a spring configuration intermediary of its ends so that the bolt may be compressed in the longitudinal direction and resumes its original length when it is released. The bolt is provided with grooves at opposing ends, which grooves extend generally transversely across the longitudinal axis of the bolt and are designed to engage the edge of the opening in the second part at diametrically opposed locations.

Abstract: An apparatus for preventing movement of a wheel on a shaft comprises a nut concentrically disposed on the shaft. A spring is disposed on the shaft and is operatively adjacent to the nut such that the spring can be biased towards the wheel. A first clamping ring is concentrically disposed on the wheel, with the first clamping ring being operatively adjacent the spring. A second clamping ring is operatively adjacent to the side of the wheel that is opposite to the first clamping ring, and a raceway is disposed between the shaft and wheel.

Abstract: A sleeve type locking device, whether it be a hollow sleeve, a set screw configured device, secures a table base column to its associated spider, as within a counterbore, upon tightening of its supporting rod, during assembly and interconnection of such support to the underside of a table surface, during assembly.

Abstract: A drivig rotary shaft and a follower rotary shaft are rotatably carried in a housing of a rotary solenoid. Operating members fixed to the rotary shafts by clips are operatively connected to each other by gears, and a locked member is locked non-movably by locking surfaces formed at tip ends of the operating members. This makes it unnecessary to provide a device for converting a rectilinear motion to a rotational motion such as a pin and an elongated bore in a path of transmission of a driving force from the rotary solenoid to the operating members. Therefore, not only the number of parts and the number of assembling steps are reduced, but also the number of slide areas, where a friction resistance and looseness are liable to be produced, is reduced, thereby enabling a noiseless smooth operation.

Abstract: The invention relates to an assembly of the type constituted by a cylindrical axle (1) of revolution and a hollow member (2) mounted securely in rotation on said axle (1).

Abstract: A slip joint assembly provides radial clearance compensation between a slip joint yoke and a receiving member. The slip joint yoke has a plurality of male splines formed externally thereon. The receiving member receives the splined yoke therein and has female splines which mate with the male splines of the yoke. The receiving member also has a plurality of circumferentially distributed, longitudinally extending, axis-parallel openings formed therein. The slip joint assembly further includes an elongated member having a C-shaped cross-section. The elongated member is compressibly received within each of the plurality of longitudinally extending openings and engages the splined shaft for providing a radial force between the splined shaft and the receiving member. This elongated member is preferably formed of a spring material to allow it to be compressible.

Abstract: In a combination of a construction member with a connecting element the construction member is provided with a groove having opposite, inwardly mutually divergent, planar side wall portions. The connecting element, as viewed longitudinally, is formed as a rail section and includes at least two elastic legs cooperating as a pair having a free outer end. The legs are bendable to one another into a compressed condition. In a relaxed, uninstalled state the outer sides of said legs are mutually divergent towards the free outer end, and in an installed state the legs of the pair are received in the groove in the compressed condition such that the outer sides of the legs are mutually divergent towards the free outer end, whereby the outer sides of the legs resiliently engage the planar side wall portions of the groove of the construction member for holding the connecting element in the groove by friction.

Abstract: The connecting device includes rotor and blade mounting segments each secured on a rotor and a fan blade at a respective connecting end thereof. A socket end of the rotor mounting segment extends in a radial direction relative to the rotor, and has an insert wall with an insert opening, an insert slot confined by upper and lower inner walls and extending in the radial direction from the insert opening, and an upper outer wall opposite to the upper inner wall. The upper outer wall has a recess communicated with the insert slot to form a retaining wall. A plug end of the blade mounting segment has a bottom wall to be fitted into the insert slot from the insert opening. A resilient retainer has a proximate end secured on the bottom wall, and a distal end with an engaging spring protrusion to provide a biasing force away from the bottom wall.

Abstract: A drive apparatus includes an electric motor, a speed reducer and a coupling member located between the motor and the speed reducer. The output shaft of the motor and the input shaft of the speed reducer are provided with longitudinally extending grooves having a square or rectangular cross section in which barrel members having the mating cross section are inserted, respectively to absorb any gap therebetween. The box like barrel member has four segments which are brought into resilient contact with the groove.

Abstract: A connecting device or coupling between two coupled tool parts including a first tool part (3) which has a driver (5) and a second tool part (7) which has a groove (9) includes a connecting place or location (1) which is characterized by the fact that it includes a device (15) which compels a well-defined angle-of-rotation position or orientation between the first tool part and the second tool part.

Abstract: A constant velocity joint shaft and inner race combination is provided. The combination includes a shaft having an annular shoulder and a splined section generally adjacent to the shoulder. An inner race with a splined bore is fitted over the splined section of the shaft. A retaining member is provided to connect the inner race to the shaft. The retaining member has an annular body with a plurality of tabs extending in a forward axial direction to be crimped over the shaft annular shoulder. The retaining member also includes a plurality of elongated arms. The elongated arms extend from the annular body in a rearward axial direction completely through the inner race bore. The arms have an acutely bent finger at their extreme end to axially retain the inner race on the shaft. To ease assembly, the retaining member can be pre-assembled on the shaft.

Abstract: A shaft coupling structure for a split type drive shaft comprises an internally splined female shaft, and externally splined male shaft coaxially received in the female shaft to establish a spline-connection. A play suppression member is interposed between the male and female shafts for suppressing play of the male shaft relative to the female shaft and vice versa. The play suppression member includes an elongate member extending in and along an axially extending groove defined between the male and female shafts. A hook portion possessed by the elongate member detachably fixes to one of the male and female shafts. The elongated member also has a biasing structure, which biases the male and female shafts in radially opposite directions.

Abstract: A shaft coupling structure for a split type drive shaft comprises an internally splined female shaft and an externally splined male shaft coaxially received in the female shaft to establish a spline-connection. A play suppression member is interposed between the male and female shafts for suppressing play of the male shaft relative to the female shaft and vice versa. The play suppression member includes an elongate member extending in and along an axially extending groove defined between the male and female shafts. A hook portion possessed by the elongate member detachably fixes to one of the male and female shafts. The elongate member also has a biasing structure, which biases the male and female shafts in radially opposite directions.

Abstract: A retaining rod is provided for forcing a tight interfit between adjacent segments of a liner of a casting shake-out unit, sand reclaimer, rotary media drum, or a tumbling unit. The adjacent edges of the liner segments have triangular grooves which combine to create diamond shaped channels between adjacent segments of the liner. The rod is generally diamond shaped in cross-section and tapered from front to back, giving the rod an overall trapezoidal appearance. The cross-sectional height of the rod is greater than the cross-sectional width of the rod. Thus, the rod can be placed in the channel in one of two positions and the same rod may be used if the clearance between adjacent segments is large or small simply by rotating the rod 90.degree..

Abstract: A mechanism for connecting and disconnecting, locking and unlocking, and holding members to one another, including snap-on fasteners, and at the same time providing mechanical, electromagnetic shielding, electrical conductivity, and thermal dissipation, coupled with environmental sealing, is provided by a cylindrical or elliptical body having a circumferential groove therein and a continuous coil spring disposed therein. A housing, having a bore sized to accommodate the cylindrical, or spherical, body, is provided, and a tapered bottom in the circumferential groove prevents the spring from turning past a vertical line, thus locking or connecting the cylindrical, or spherical, member with the housing or plate.

Abstract: The thermal protection device is made up of a plurality of juxtaposed unit modules each comprising a fairing element provided with fixing tabs and thermal insulation integrated in the fairing element. The gap between neighboring fairing elements is limited to the minimum width necessary for accommodating thermal expansion thereof. The connection means which releasably connect the fixing tab to a primary structure to be protected comprise a ball fixed to the fixing tab in adjustable manner and capable of being locked in a corresponding socket of a retaining part fixed to the primary structure. The ball is locked in its socket by means of a bolt capable of being released by action exerted against a resilient return force.

Abstract: A mechanism for connecting and disconnecting, locking and unlocking, and holding members to one another, and at the same time providing mechanical, electromagnetic shielding, electrical conductivity, and thermal dissipation, coupled with environmental sealing, is provided by a body having a groove and a coil spring disposed within the groove. A housing, having an opening sized to accommodate the body, is provided, and a tapered bottom in the groove prevents the spring from turning past a vertical line, thus locking or connecting the body with the housing.

Abstract: A stone/mount combination being mountable to a wall. The stone/mount combination consists of a stone and two mounts. The stone has two parallel edges in each of which a slit is defined. Each mount has a body, a number of fine perpendicularly extending from an edge of the body and a flange perpendicularly extending from an opposite edge of the body. The flange formed on each mount is secured, by means of an adhesive material, in a corresponding slit defined in the stone. Each fin defines a number of apertures. A plurality of screws are inserted through the apertures. A plurality of screws are inserted through the apertures defined through the fins and are further secured to the wall.

Abstract: A method of installing a filter belt onto each of a pair of wind up rollers disposed on either side of a filter housing is disclosed. The filter belt is detachably secured at either end to a respective roller by a sewn in flexible element received in an undercut groove in the roller surface. Each end of the belt is fully inserted lengthwise into the undercut groove in the respective roller surface while bending the flexible element around side plates of the filter housing so as to secure each end of the filter belt to a respective roller.

Abstract: A steel rule die including holders providing a holding force assisting in retaining the die rules in their rule slots. The holders include a plurality of resiliently compressible polyurethane plugs positioned adjacent the rules at desired spaced apart locations in cavities formed in the die base member. The plugs are compressibly received in the cavities and have associated portions thereof extending from the cavities which positively urge against the sides of the rules.

Abstract: A rotary gate control assembly includes a pivot rod on which the rotary gate is adapted to rotate and a cam having a continuous cam surface with a plurality of lobes disposed at spaced intervals therealong for defining a plurality of rotary gate home positions with the cam being operatively secured to the pivot rod. A first member, which can be a ball or a rod, is cooperatively positioned relative to the cam surface for selectively allowing a rotationaly movement of the cam generally for an angular extent at least equal to an angle defined between adjacent ones of the lobes. Preferably, a second such member is also cooperatively positioned relative to the cam surface for the same purpose. The second member is spaced from the first member.

Abstract: In medium to high volume printers using more than one print head, multiple documents may be printed side by side in one pass. Multiple rolls of ribbon are utilized on the ribbon mandril to accommodate the documents. The ribbon is kept taut across its print head by the feed system controller. When the outside diameters of the two rolls of ribbon vary, the system keeps one ribbon taut and the other tends to go slack at the print head. A split sleeve mandril with a differential mechanism connecting the two sleeves of the mandril assures that both ribbons are maintained taut. The preferred differential mechanism may be a planetary gear arrangement, or a thrust bearing arrangement. A unique ribbon roll holding mechanism, to hold the ribbon roll at the selected place on the mandril is also provided.

Abstract: A locking mechanism is disclosed which includes a garter-type canted-coil spring having elliptical coils with a coil height and a coil width measured, respectively, along a minor and a major axis of the elliptical coils for holding and locking a first and second member to one another. The first member includes a first groove for retaining the spring with the first groove having a depth less than the coil width in order that a portion of each coil extends outwardly from the first groove. The second member includes a second groove for accepting the extended portion of each coil and for loading the coils generally along the major axis thereof, said first and second members being locked to one another when the coils are disposed within and loaded by the first and second grooves.

Abstract: A camshaft for an internal combustion engine comprising a metal cam, a shaft inserted into a through hole formed in the cam and resin poured between the cam and the shaft to join them. The cam is formed with plural grooves which are formed in the inner periphery of the hole in parallel with the shaft and into which the resin is poured. The groove is formed fanwise so that a sectional shape of the groove is wider as it approaches the outer periphery of the cam. Thus, when the resin which is filled into the grooves at high temperature is cooled naturally and contracts, since the resin bites the cam, gap and failure of contact are not produced between the cam receiving rotational force and the resin when the camshaft is operated for the internal combustion engine.

Abstract: A lamination stack assembly comprising elongated, resilient spring pin members for exerting radially outward force when in deformed states, each laminate having an inner edge defining an opening for receiving the shaft. The spring pin members are disposed axially along the shaft intermediate of its outer surface and the inner edge of the laminates, and cooperate with the shaft and the inner edges of the laminates to prevent relative rotational slippage of the laminates with respect to the shaft. The shaft preferably includes axially extending grooves for receiving the spring pin members which cooperate with notches in an inner edge of each of the laminates to receive the spring pin members. Each of the spring pin members preferably includes a hollow cylinder having an exterior wall defining an axially extending gap in the wall, wherein the gap varies in width from a normal state to a deformed state. Preferably, the spring pin members are made of hardened steel.

Abstract: A portable abrading or polishing tool including a motor which drives orbitally a head carrying a working pad to which sandpaper or the like may be attached, with the motor of the device driving a carrier about a first axis, and with the carrier mounting the head to turn relative thereto about a second axis. The head and carrier are connected together by bearings, preferably including a large bearing near the head and a smaller bearing offset toward the motor. A counterweight structure is connected to the carrier and located near the axially outer end of the bearings for close coupling with the head and reduction of vibration in use. Fasteners attaching the counterweight to the carrier may serve a secondary purpose of forceably pulling the head and bearings from the carrier during disassembly. An elastomeric handle extending over the motor prevents transmission of low temperatures to a user's hand, and cushions engagement with the motor.

Abstract: The invention relates to a coupling for making a connection secured against relative rotational and axial displacement between a hub member and a shaft member. The shaft and hub members have engaging keys and grooves at the internal and external circumferences thereof. The hub member has a circumferential groove undercutting the keys thereof and an insert member having the same key and groove configuration as the shaft member is disposed therein. The insert member is circumferentially offset relative to the hub member so that the respective keys and grooves thereof are out of alignment. The keys of the insert and hub members are then in axially abutting engagement with the insert member serving as an anchor so that a screw connection between the shaft and the insert members allows the shaft and hub members to be drawn towards each other to form a firm and secure connection.

Abstract: The pressure plate unit for a motor vehicle friction clutch comprises a clutch housing (1a), a presser plate (3a) arranged in the clutch housing (1a) and guided non-rotatably but axially displaceably on the clutch housing (1a) and a clutch spring (13a) of substantially annular washer form arranged limitedly radially displaceably in the clutch housing (1a). The clutch spring is supported in the region of its external circumference axially on the clutch housing (1a) and on a diameter smaller than the diameter of the external circumference axially on the presser plate (3a). At least one radially resilient spring element is braced in between the clutch housing (1a) and the clutch spring (13a). The spring element holds the diaphragm spring in its original position in which the pressure plate unit was balanced in assembly, even during operation.

Abstract: This invention relates to the formation of a resilient retention rod or pin that inserts intermediate a pair of liner segments of a tumbling or casting shake-out unit, and which rod is formed having a series of inherent angular bends provided along its length, and being constructed of resilient material, so that as the rod is forcefully inserted in place for retaining a pair of adjacent liner segments together, the tendency of the resilient rod to achieve its steady state angularly bent condition has a tendency to continuously force a pressure against adjacent segments to assure their tightness in interfitting together for forming the liner or cylinder for a casting shake-out unit or the like.

Abstract: A large manually operated leak-proof corrosion-proof low-cost shut-off or stop valve for handling high pressure refrigerant liquids and/or gases comprises a valve body formed of two sheet metal hemispheres welded to the periphery of a circular metal valve plate having a fluid passage therethrough and hollow cylindrical metal tubes welded to the hemispheres along the edges of circular holes cut in the hemispheres. The cylindrical outer end of a valve spindle extends into a cylindrical bore in the hub of a hand-wheel which is rotatable to open and close the valve. The hand-wheel is secured to a valve spindle by a removable flanged roll pin which fits into a pin hole formed by mating or registering recesses formed in the periphery of the outer end of the valve spindle and in the peripheral wall of the bore in the hub of the hand-wheel. Unscrewing of the bonnet affords access to the sealing materials and, as the bonnet moves axially, it also shifts the hand-wheel off of the outer end of the valve spindle.

Abstract: A fastening arrangement for removably securing a gear or hub to a shaft by means of a spring wire clip which clip includes a curved portion formed by radially and circumferentially bending an intermediate portion of the clip for resilient engagement with an axial groove formed in a central bore of the gear, a pair of loop portions extending from opposite ends of the curved intermediate portion and arranged to be fitted around the shaft for engagement with either side surface of the gear, and a pair of detent pin portions formed by radially inwardly bending the end of each of the loop portions for engagement with a pair of radial holes formed in the shaft.

Abstract: A carving machine which has a tubular framework that allows easy attachment of one or more supplemental frames and additional carving spindles to the base frame. The length of the machine frame also can be extended very easily to accommodate longer workpieces. The carver includes individual motors driving the carving tools. The motors are mounted in housings provided with vacuum attachments for inducing a flow of cooling air for the individual motors. The housings also are sound deadened to reduce the noise level.

Abstract: A meter, counter, printer or a like device wherein a shaft carries one or more wheels whose angular position with respect to the shaft must be changed, either at regular or irregular intervals. The peripheral surface of the shaft has an elongated recess which is parallel to the axis of the shaft. The inner portion of the recess receives an elongated elastic cushion, and the outer portion of the recess confines the major portion of a helical spring with spaced-apart convolutions. The smaller portion of the spring extends into a selected socket in the internal surface of a wheel or into selected sockets in the internal surface of two or more wheels which surround the shaft.