Abstract: A braking device for a railroad vehicle including traction bars is arranged to apply a braking pad on a braking surface affixed to a wheel of the vehicle. The braking device includes a reaction member, at least one lever arranged to cooperate with the reaction member, connecting devices between the traction bars means and the lever, the braking pad being borne by the lever to be applied on the braking surface by pivoting the lever under the action of the traction bars and of the reaction member.

Abstract: The invention relates a braking device for a railroad vehicle including traction structure (1, 2) arranged to apply a braking pad on a braking surface affixed to a wheel of the vehicle. It includes a reaction member (11, 20), at least one lever (6; 6', 6"; 33, 33') arranged to cooperate with the reaction member, connecting structure (23, 41) between the traction structure and the lever, the braking pad being borne by the lever to be applied on the braking surface by pivoting of the lever under the action of the traction structure and of the reaction member.

Abstract: A boom hoist system for supporting and adjusting the position of a lifting crane gantry is provided including a drum, a drive system, and first and second braking systems for selectively stopping rotation of the drum. The boom hoist system operates independently from crane mechanical works and the first and second braking systems may include sensors for automatically engaging when specified conditions occur in order to prevent a hoisted gantry from falling uncontrollably in the event of a hoist system malfunction or failure.

Abstract: The invention is a brake shoe for application to the rim of a brake disc for retarding a rotary motion of the brake disc. The brake shoe has one or more brakepads having a pair of pad friction surfaces for contact with friction surfaces on the brake disc. The pair of pad friction surfaces are sloped in opposition to each other, and have an open space located between the pad friction surfaces. The brake shoe has a pad support structure to which the brakepad or brakepads are attached, the pad support structure serving to press the brake pad or brakepads against the friction surfaces on the brake disc. The pad support structure has a portion thereof for mounting on a device for positioning the brake shoe and for moving the brakepad or brakepads into engagement with the disc.

Abstract: A safelock system for removable gears is provided having a self-seating gear segment rotatably mounted on a helical ball spline for bi-directional axial movement with respect to the gear teeth to be locked. A relubrication structure is provided to service the interior of the ball spline. The interlocking teeth are two-dimensionally tapered from the point of initial engagement. Diverse biasing structures are employed to facilitate the axial self-seating reaction of the gear segment after initial engagement with the gear to be locked.

Abstract: A vehicular brake assembly comprises brake shoes and a brake disc. The brake shoes are fastened to a sheet plate and mounted inside an inner drum portion of the brake disc. The brake disc is operatively connected to an axle placed within a stationary axle housing that carries a mounting flange. The sheet plate is fastened to the mounting flange. An anchor pin is attached to the mounting flange and an opening is made in the sheet plate for the anchor pin to project therethrough to thereby serve as an abutment surface for the brake shoes transferring any force exerted on the brake shoes directly to the mounting flange. The brake disc is operatively engaged with a caliper adapted to grip an outward portion of the brake disc. The caliper slides are provided on the mounting flange to receive the caliper.

Abstract: A parking brake assembly includes a lever that translates pivoting rotation to sliding movement of a tappet in contact with a braking shoe to effect expansion of the brake shoe against the inside diameter of a rotating element. The rotating element is, in more specificity, a rotor carried by a spindle that is rotatably supported by bearings. The bearings are carried by the actuator housing which additionally carries the lever and tappet of the parking brake assembly.

Abstract: A two-piece stamped caliper adapter includes a cast iron anchor and a stamped steel adapter plate. The stamped adapter plate includes reinforcement ribs for providing structural rigidity and stiffness to withstand the loads imposed by a vehicle wheel brake system. A stamped caliper adapter makes a redundant drum brake assembly more readily adaptable to most vehicles and provides other cost-saving economies. In the preferred embodiment, the cast iron anchor and the stamped steel adapter plate are bolted together and the stamped steel adapter plate is spot welded to a drum brake assembly backing plate.

Abstract: The drum-in-hat assembly (10) comprises a disc brake (12) mounted slidably relative to a backing plate (18) which includes an opening (19) through which extends a reverse scissors actuator (40) for the drum brake (30) of the assembly (10). The drum brake (30) includes a pair of arcuate drum brake shoes (32, 34) supported relative to the backing plate (18), with the shoes (32, 34) having a pair of opposed brake shoe ends (36, 38) engaged by the actuator (40). The actuator (40) comprises a pair of levers (42, 46) pivotably attached to one another with each lever (42, 46) having a second lever end (48, 58) engaging a respective end (38, 36) of an associated brake shoe, wherein the second lever end (48, 58) has either a slot (49) or an edge (59) located laterally away from the other and engaging the associated brake shoe end (38, 36). The actuator (40) is free to float relative to the backing plate (18), and the levers (42, 46) are located within a housing (70) attached to the backing plate (18).

Abstract: A composite brake disc and drum assembly for a motor vehicle having a rear disc brake system and a parking brake system. The assembly includes a body of a first material having a mounting web, a skirt and a flange. The skirt extends from the perimeter of the mounting web and cooperates therewith to define a brake drum. The skirt has an inside surface which defines a cylindrical braking friction surface for engagement with the parking brake shoe. The flange extends outward from the skirt and at least one annular plate is supported by the flange so as to extend in a plane generally perpendicular to the axis of rotation. The plate includes a surface defining an annular braking friction surface for engagement with the disc brake pads.

Abstract: An improved operating mechanism for a drum brake assembly including a mounting flange for securing the brake assembly to a vehicle component, a hollow abutment block secured to the mounting flange, and a backing plate secured to the mounting flange. A pair of arcuate drum brake shoes are supported relative to the backing plate. The hollow abutment block located on the mounting flange between a pair of adjacent ends of the brake shoes. According to one feature of the present invention, the operating mechanism is at least partially disposed in the chamber for engaging and actuating the brake shoes, and is coupled to an actuation cable having an end portion supported in a generally perpendicular relationship relative to the backing plate.

Abstract: A braking assembly and method are disclosed for use with wheeled skating apparatus having a plurality of wheels rotatably connected with a support structure, the assembly including a band of relatively resilient material positioned at the outer circumference of a selected one of the plurality of wheels, a mount securable adjacent to the support structure, and a brake pad movably connected with the mount and positioned adjacent to the selected wheel for selectively contacting a surface associated with, and preferably in, the selected wheel. An actuator is operatively associated with the brake pad for selectively causing the pad to contact the surface.

Abstract: An improved cone brake is disclosed having a lever which selectively moves a brake shoe into engagement with a brake drum to prevent rotation of a shaft. Cam faces on the lever and brake are configured to ensure that the brake shoe is guided smoothly and accurately into engagement with the brake drum. The disclosed brake shoe cam face may be used with levers moving in either direction of rotation about an axis of rotation of the shaft. This increases the versatility of the brake shoe. In another feature, a casing for the brake includes a slot which receives an anti-rotation key from the brake shoe. The brake shoe and lever are mounted on a portion of the brake drum to reduce the axial length of the brake. The overall construction is relatively simple and ensures that the cone brake is actuated and guided properly and smoothly to stop rotation of the shaft.

Abstract: An improved shopping cart brake for attachment to the rear leg of a shopping cart is disclosed, the brake for preventing the rotation of a non-inflatable tire on the rear leg of the shopping cart. The shopping cart brake includes a connecting arm, which is removably and adjustably attached to the rear leg of the shopping cart. The brake also includes a split yoke, which is pivotally connected to the connecting arm. The split yoke has two braking flanges which engage and apply frictional force to the sides of the non-inflatable tire to prevent the tire from rotating. An actuator is also included, the actuator being integral with the split yoke and for applying force to the split yoke to engage the braking flanges with the sides of the non-inflatable tire. The shopping cart brake also includes an adjustable tension bar between the braking flanges which may be used to increase or decrease the frictional force the braking flanges apply to the non-inflatable tire.

Abstract: For a vehicle having a relatively large axle tube, a mechanically operated drum brake is provided having a hollow abutment post between adjacent ends of a pair of opposed arcuate brake shoes and having an improved actuating mechanism for the brake shoes mounted partially within the abutment post.

Abstract: The invention relates to a pressure fluid mechanism comprising: a reaction cam; a cylinder block mounted to rotate relative to the cam and including a central void and an axial extension enabling it to be fixed to a support; and an internal fluid distributor valve constrained to rotate with the cam by a link mechanism which extends inside the central void, the cylinder block and its extension constituting an assembly which is interposed between the cam and the internal fluid distributor valve. According to the invention: a) a braking device is disposed at the end of the mechanism towards which the link device extends, the braking device being disposed between the cylinder block and the cam and including a chamber containing brake disks, which chamber is delimited by a cover; b) the link mechanism is constrained to rotate together with the cover of the chamber containing the disks; and c) the cover of the chamber is constrained to rotate with the cam.

Abstract: The invention relates to a brake disc or brake drum or else the combination of both. The brake discs are provided with rotationally symmetrical braking areas and a removable, anti-corrosive coating. The coating completely covers the surface of the brake disc. Between the coating and the braking area there is applied a peelable, adhesive piece which is cut to size from a sheet material and completely covers the braking area.

Abstract: The present invention comprises an integrated disc brake (50) and drum brake (120) construction. A support member (12) is supported by a vehicle axle (14) and extends radially outwardly to provide support for a housing (52) of the disc brake (50). The housing (52) is secured by bolts (93 or 94) to the support member (12), the housing (52) having through openings (54) for receiving rod members (75). The rod members (75) each have one end (76) secured to the support member (12) and a second part (90) and the other end has an opening (77) for an internal bore (78) extending therein. The disc brake (50) includes an axially movable yoke (60) attached to guide pins (82) extending into bores (78) of the rods (75) for slidable movement therein. The second part (90) extends radially to provide support for an inner brake pad (20) and may extend axially away from the housing (52) to provide an anchor support (91) for shoulders (132, 142) of drum brake shoes (130, 140).

Abstract: The rotor is held on a shaft by means of a membrane providing an easy resilient deflection in axial direction and being stiff for torque transmission in azimuthal direction. The membrane is star-shaped, or has spiral arms or is of polygonal configuration. A membrane carrier is connected to a central part of the membrane or to polygon corner points; the rotor, through a sleeve extension of a short circuiting ring is connected to peripheral points of the membrane. The carrier is splined to or slip friction coupled to the shaft.

Abstract: A brake apparatus for an automotive vehicle having a wheel hub and a steering knuckle, wherein an annular V groove is formed on one side of a rotary disk of the wheel hub; a V-shaped brake member is mounted on the steering knuckle so as to be removably engageable with the V groove of the wheel hub; and at least one radial bearing and thrust bearing are disposed between a hub body of the wheel hub and an inner circumference of the steering knuckle. The apparatus is smaller in volume and simple in structure without need of a conventional caliper and a pair of pistons and further without producing biased wear on the friction surface thereof.

Abstract: A generally hat-shaped disc for a disc brake system is provided with an inner cylindrical surface serving as the drum of a drum in hat parking brake. A unitary backing plate supports the parking brake assembly and provides integral mounting parts for the fist type sliding caliper of the disc brake assembly.

Abstract: In order to lock a drive system from operation during maintenance procedures, while providing a positive mechanical engagement regardless of index position, a locking mechanism includes a sector gear associated with a rotatably mounted shaft. The rotatably mounted shaft and the sector gear have a common axis of rotation which extends generally tangentially of a system gear associated with a mechanical transmission of the drive system. With the system gear being mounted for rotation in a plane and having a plurality of equally spaced teeth completely about the periphery thereof, the sector gear also includes a plurality of equally spaced teeth, but disposed about only a portion of the periphery thereof. The rotatably mounted shaft is disposed in spaced relation to the teeth of the system gear and the sector gear is mounted for rotation into and out of the plane of the system gear.

Abstract: The present invention comprises an integrated disc brake (50) and drum brake (120) construction. A support member (12) is supported by a vehicle axle (14) and extends radially outwardly to provide support for a housing (52) of the disc brake (50). The housing (52) is secured by bolts (93 or 94) to the support member (12), the housing (52) having through openings (54) for receiving rod members (75). The rod members (75) each have one end (76) secured to the support member (12) and a second part (90) and the other end has an opening (77) for an internal bore (78) extending therein. The disc brake (50) includes an axially movable yoke (60) attached to guide pins (82) extending into bores (78) of the rods (75) for slidable movement therein. The second part (90) extends radially to provide support for an inner brake pad (20) and may extend axially away from the housing (52) to provide an anchor support (91) for shoulders (132, 142) of drum brake shoes (130, 140).

Abstract: Apparatus is provided for adjustably supporting an object, such as a surgical light, between two points on a yoke-type frame. A housing having a cylindrical cavity and a threaded axial bore therethrough is secured to one of two hubs provided on the legs of the yoke. An adjustment screw having a face plate passes through the aperture. Wave washers and a spherical washer having a spherically concave friction surface are provided within the housing's cavity. A shaft is supported within the housing by a spherical bearing and terminates in a nut having a spherically convex friction surface. A keyway and recessed area on the shaft serve to secure the light to the shaft. The hub on the other leg is provided with a spherical bearing which supports a second shaft. The second shaft has a keyway and a recessed area which are engaged by a key and adjusting screw on a second mounting bracket in the opposite side of the light.

Abstract: A brake system for a drawworks includes a hydraulically actuated band brake system having a backup spring actuator for emergency stops. The system also includes a caliper disc brake system for emergency stops. The disc brake system includes a rotor directly mounted to the drum barrel and a pair of spring actuated caliper assemblies.

Abstract: A hub and dynamo arrangement includes a wheel hub rotatable about the axis of a fixed shaft; a dynamo having an annular stator carried by the hub, an annular armature disposed radially inwardly of the stator and a current collector fixed to the armature for leading off current generated by the dynamo, the armature being mounted for rotation about the axis of the shaft independently of the hub; a control device for selectively arresting and permitting rotation of the armature about the axis of the shaft, whereby electric current is generated when the armature is arrested, the control device including a contact member mounted for radial movement relative to the axis of the shaft and mounted in a position such that the radial movement effects current-transmitting and rotation-locking engagement with the current collector; and an electrically-conducting, actuating wire attached to the contact member, both for transmitting current from the contact member, and for applying mechanical actuating force to the contact

Abstract: An inclined disc brake assembly has a rotor 12 comprising two halves 32 and 34 clamped together. The rotor 12 has inclined braking surfaces 22 and 24 opposing each other forming a wedged channel 26 therebetween. A brake housing 16 is anchored to an axle housing 18 and has two torque receiving sections 60 with opposing spaced walls 62. Brake shoes 62 and 66 having inclined lining surfaces and inclined backing plates 76 and 78. The plates are mounted within horizontal grooves 82 in the anchored section 60 for horizontal movement. An actuating wedge 84 is moved downwardly by an actuator assembly 20 to spread the brake shoes apart and into engagement with the braking surfaces 22 and 24 of the rotor.

Abstract: A swivel castor comprises a pair of wheels (17) inclined inwardly to the upstanding swivel axis (11), such that the bottom of the wheels are spaced apart further than the tops. The swivel axis is offset forwardly of the wheel rotational axes. The arrangement gives improved support capacity and swivellability.

Abstract: An internal combustion engine or pumping device is disclosed including a block forming a plurality of cylinders, each divided into a combustion chamber and a pumping chamber by a reciprocable piston, energy developed by internal combustion within the combustion chamber being transferred directly through the piston for pressurizing transmission drive fluid in the pumping chamber which is then communicated through a high pressure conduit for performing useful work and returned to the engine through a low pressure conduit. The engine or pump preferably includes pairs of such pistons which are mechanically interconnected for operation in opposition to each other. Couplings and controls synchronize operation of the pistons and regulate fuel and air supply to the combustion chambers. The engine is also equipped with a number of systems for preventing piston overtravel, particularly a self-actuating brake which is also novel apart from the present engine or pumping device.

Abstract: A transmission has a drive train which is coupled with the engine, e.g. an automotive vehicle and a reversing gear connected to the output shaft. A slidable gear shifted on a fixed shaft, continuously meshes with a gear of the drive train and can be brought into mesh with the reversing gear for reverse drive. According to the invention the shiftable gear is connected with a synchronizing ring which has a frustoconical surface engaging the frustoconical surface of a synchronizing disk which is keyed to the fixed shaft when the slidable gear is shifted toward the reversing gear to stand still. The synchronizing disk or member on the shaft can be entrained with the sliding gear upon overcoming the force of a detent formed by a bore on the fixed shaft which is biased outwardly by a wedge member and an axial spring in the fixed shaft.

Abstract: A controllable pivot specifically designed for the pan or tilt movement of a motion-picture camera support incorporating two separate braking mechanisms, the first being a drag brake adjustable to provide a controlled resistance to operation of the pivot and the second providing a pivot locking facility independent of the drag brake. In a preferred form the locking brake is a floating band brake operating in the oil of the hydraulic drag brake.

Abstract: A disc brake comprises a rotatable brake disc, and a pad assembly disposed in opposed relation to the pressure bearing surface of the brake disc. The pressure bearing surface of the brake disc is inclined diametrically thereof, and the pad assembly is adapted to displace diametrically of the brake disc so as to engage the pressure bearing surface of the brake disc, whereby there is provided a clearance between the press surface of the pad assembly and the brake disc, which clearance is large enough to prevent the dragging phenomenon.

Abstract: The present invention relates to an improvement in a band brake wherein a plurality of rotors and stators provide for braking a rotatable member when a friction lining on the band brake is engageable with the rotatable member. The rotatable member carries an axially extendible assembly which is engageable with the friction lining to provide for extension of the axially extendible assembly. When the assembly is extended, the rotors which rotate with the rotatable member and the stators which are carried by a support housing are moved axially into frictional engagement with each other. The extendible assembly comprises a first element carried by a key on the rotatable member to impart rotation with the rotatable member and permit axial movement relative to the rotatable member, and a second element resiliently connected to the first element.

Abstract: A novel torque exchange coupling for transmitting rotational mechanical power is described. The coupling includes a torque receiving member, a torque transmitting member and means for conveying rotational mechanical power between the torque transmitting and receiving members. Typically, the torque receiving member is a housing, a cam or other suitable structure which has a surface comprising a circuitous track. The linear circumference of the track is undulant with respect to its axis of rotation. The torque transmitting member is any suitable rotatable mounting means such as a rotor which is positioned in a rotational power conveying relationship with the undulant track of the torque receiving member. Alternatively, the function of the torque receiving and torque transmitting members can be reversed.

Abstract: An environmentally protected momentum type, electrically controlled torque producing device consisting of a driving member provided with a multiple of driving shoes with friction lining faces, connecting arms constructed in a manner to hold shoes from engagement with driven member except upon energization of the electrical coil which in turn causes armature to force shoes in an outwardly direction into engagement with the inner periphery of the driven member. Contractile springs are provided to retain driving shoes in the disengaged position while the unit is at zero rotation.

Abstract: A combination wheel brake assembly for connection with a wheel or other rotatable element comprising a rotatable axle, a spring applied, hydraulically released brake assembly, a wheel hub rotatably supported on the axle and adapted for connection with the wheel and free wheeling hub mechanism for selectively rendering the wheel hub free wheeling to permit the wheel to be freely rotated despite a loss or failure of hydraulic pressure and despite braking engagement of the braking elements.

Abstract: This invention relates to a braking apparatus wherein the heat absorbing mass of a rotating braked element, such as a vehicle wheel, is increased by securing to, such as each wheel of the vehicle, a brake disc of such size as to constitute a heat sink capable of absorbing the heat generated by a pair of brake shoes when in braking engagement therewith, the periphery of the wheel forming a braking surface that is simultaneously engaged by a third brake shoe whereby the wheel constitutes a second heat sink capable of absorbing the heat generated by the third brake shoe.

Abstract: The preferred embodiment of the invention disclosed herein includes a motor operatively connected to drive a rotatable drum assembly including cutting means rotatable through a cutting station where brush and similar debris is cut into small chips. Adjacent the cutting station is a feed station from which the brush may be hand-fed to the cutting station and at the feed station is actuating means operative to actuate emergency shutoff means and emergency brake means, the former being operative to shut off the motor and the latter being operative to stop the rotation of the drum assembly. Preferably, the emergency brake means includes a band member including a brake lining located about the periphery of a portion of the drum assembly and having spaced apart end portions. One end portion of the band member is fixed to a frame and the other end portion is spring biased away from the drum assembly so that the brake lining is normally not engaged with the adjacent periphery of the drum assembly.