Abstract: A railway car truck assembly having an integral H-frame includes longitudinally extending side frames integrally attached to a transverse member having a center bearing. The side frames are resiliently mounted for rocking movement on truck journal boxes. The side frames each include a constant contact side bearing adapted to take the weight of the car body. Each side bearing has an upper surface made of a first low friction material. A car body located above the truck pivots about the center bearing and includes laterally spaced depending portions having a lower surface made of a second low friction material supported on the side bearings. One of the first and second low friction materials includes filled nylon and the other low friction material includes filled polytetrafluoroethylene. The coefficient of friction between the first and second low friction materials is sufficiently low to allow relative rotation between the truck and car body.
Abstract: A door frame assembly process for conventional railway hopper car discharge openings. Five individual frame components are formed of plate or rolled angle members, and are assemblable in a jig. One dimension of the assembly is defined by the predetermined length of two of the main components, while the other dimension is adjustable in the jig. The door closure surface forming member is a separate component, and may be adjustably positioned with respect to the other four components before being affixed thereto.
July 3, 1975
Date of Patent:
August 1, 1978
The Chesapeake and Ohio Railway Company, The Baltimore and Ohio Railroad Company
Abstract: A high-speed transportation system employing a pivotally supported guide rail structure made of sections connected by expansion joints, with a self-propelled airplane automatically steered to fly along the guide rail with minimum force therebetween by a control system that is inclusive of displacement sensors associated with air bearings coupling the aircraft to the guide rail. A wheeled construction having wheels that can be driven, braked or free wheeling is provided that is automatically lowered or maintained in a lowered position contacting the guide rail whenever the aircraft lacks flying speed or the wheels are either driven or braked. The air bearings urge centering of the rail both vertically and laterally with respect thereto. Flight stability of the aircraft is enhanced by the provision of a ground effect bed, and gust spoilers, with the latter additionally functioning as a noise abatement device.
Abstract: Rail bonds providing electrical connections between adjoining and parallel rail lengths, between rail and external circuits, between rail and frogs, switches and the like include a rail bond terminal comprising a stranded conductor, an inner sleeve having a flared portion and secured to an end of the conductor, and a tapered outer sleeve having open ends into which the inner sleeve and conductor can be inserted. One end of the outer sleeve forms a head portion having an opening sufficient to receive the conductor to permit the conductor to be removed from the area of the end of the terminal to which a hammer is applied for driving the terminal into a rail or the like.
Abstract: A cargo securing system for steel coils, for example, includes, on a supporting platform, two parallel spaced tracks and coil supporting chocks slidably mounted thereon. End chocks are selectively fixed to the tracks to support one end of a coil, while adjustable chocks are slidable to a position to support another end. The adjustable chocks are operably connected to anchors, which are selectively fixed to the tracks, for securing movement against a coil end, and for prevention of subsequent movement along the tracks. Multi-intermediate chocks permit securing multiple coils of different sizes by supporting the adjacent ends of two coils intermediate the end chocks and the adjustable chocks. Storage track sections permit pivoting of the chocks to a storage position to convert the platform to flat-bed use when desired. An "I"-beam chock retainer is provided for cooperation with a particularly defined track.
Abstract: An aerial conveyor system comprises a pair of spaced apart cables extending from a first vehicle including material delivery apparatus across a material receiving zone, across an open area, and across a material discharge zone to a second vehicle. The cables support a plurality of conveyor support frames each comprising a pair of tubular members extending substantially parallel to the cables, a plurality of hook rollers for supporting the tubular members on the cables, and a plurality of transversely disposed conveyor support rollers. An endless conveyor belt is mounted for movement around a course defined by the conveyor support rollers of the conveyor support frames and functions to transport material received from the delivery apparatus of the first vehicle in the receiving zone across the open area to the discharge zone.
Abstract: A pneumatic tire of the type comprising a carcass reinforced by radially extending cords, surmounted in the crown region by a substantially inextensible belt, reduces rim stress by virtue of having bias angle cord reinforcements in the lower sidewalls and the terminal portions of all radially extending carcass cords turned axially outwardly. Further reduction of rim stress by the tire is effected by employing a belt construction that resists bending.
June 8, 1977
Date of Patent:
July 18, 1978
The B. F. Goodrich Company
Marion G. Pottinger, Edward G. Miller, Jr., Charles Patrick
Abstract: A tire inflation coupling apparatus utilizes a pair of rigid pipes hydraulically connected to one another at an acute angle wherein the angle is responsive to the amount of air pressure within the apparatus. The fill end of one pipe is provided with a standard automobile tire valve assembly. The free end of the other pipe is adapted to be coupled to a downwardly directed valve stem of a tire stored within the trunk of a motor vehicle. The apparatus serves to facilitate convenient periodic storing of compressed air into the tire while acting to indicate the inflation of the tire.
March 14, 1977
Date of Patent:
July 18, 1978
Richard M. Marshall, Margaret V. Marshall
Abstract: A railway passenger car includes a bedroom compartment having a commode enclosure comprising a pair of enclosure sections which during non-use are moved together into a confined and compact manner providing greater compartment space and during use can be moved apart to provide an enlarged commode area.
Abstract: An improved front opening holster including depending enclosed spring members extending along the edges of the front opening. The spring members have free ends and are operatively secured together by a retainer in the completed holster but relatively movable during manufacture to facilitate production.The body includes an elongated stiffening member providing attachment point for a belt loop and defines a cylinder cup shape as well.The belt loop includes a stiffening member and a distortable spacer and tightening means to expand and contract the spacer to selectively engage or release the belt to afford both free movement and fixed engagement with the wearer's belt.The hammer of a handgun positioned in the holster is covered by an overlying strap. A thumb strap with a selective direction release fastener engages the overlying strap in a recess between the handgun and the belt loop.A novel method for producing a spring closed holster, particularly the spring assembly, is disclosed.
Abstract: A multi-purpose carrying bag or case having a parallelepiped shape is provided. The carrying bag or case comprises a shell of a watertight and airtight, rip-resistant material, the shell having top and bottom portions, first and second longitudinal side portions and first and second end portions; a slot-type opening provided in said upper portion and being closeable by means of a watertight and airtight zipper; and a fill-valve provided in said shell for filling the interior of the carrying bag or case.
Abstract: Arrangement for withdrawing material from the bottom portion of a silo having an inclined silo bottom and a discharge funnel at the lowest point of the silo bottom, comprising a conveying screw which is disposed above the inclined silo bottom and which on the one hand is rotatable about its longitudinal axis and on the other hand moves along the silo bottom and which conveys the material in the direction towards a discharge funnel at the lowest point of the silo bottom, and wherein the drive of the screw is disposed outside the silo wall and the bearing of the screw is disposed at the opposite end outside the discharge funnel and on the latter, both the drive and the discharge funnel being rotatably mounted to permit a sweeping movement of the screw over the silo bottom.
Abstract: This disclosure relates to an automatically controlled scraper for moving particulate material onto a radial or star feeder for distribution thereby. The scraper includes a scraper bucket suspended from a radially extending arm. The bucket is connected to both a digging cable line and a lifting cable line, each of which is in turn connected to a suitable winch. The winches are controlled by clutches and brakes, each of which are optionally activated by interconnected automatic and manual control elements, whereby operation may be selectively changed from automatic to manual at the discretion of the operator.
Abstract: In a railway hopper car a sliding gate is provided at the discharge opening of the hopper for discharging materials therefrom. The gate comprises a frame supporting a sliding gate member movable from a closed position to an open position by means of a rack and pinion arrangement. The arrangement is actuated by an operating shaft which projects out from opposite ends of the gate and includes operating heads which are adapted to be engaged by a tool for rotating the shaft. A lock arrangement is provided for maintaining the sliding gate in a closed position and includes blocking elements which in the locked position of the gate are disposed over the operating heads to prevent the insertion of a tool unitl the locking mechanism is placed in an unlocked position.
Abstract: A travelling block system that can be changed quickly from a four support line system to a two support line system, which comprises a travelling block having two sheaves, and a single sheave block with hook, attached to the crown of a boom. The two sheave travelling blocks comprise a frame with two parallel spaced plates serving as inner sheave plates, two sheaves on the outside of the inner sheave plates, and two outer sheave plates. The sheave plates are firmly bolted to the frame, and appropriate sheave pins are supplied through each pair of outer and inner sheave plates. Two guard strips are provided which are removably attached around the periphery of the outer and inner sheave plates so as to completely contain the cable around the sheave on sides and bottom of the sheaves.
Abstract: A long concrete unit, prestressed by tendons tensioned before concreting, at least one section of which, near the end of the said unit, is submitted to maximum loads, characterized by the fact that at least one improved-bond prestressing tendon is surrounded by spirals located on either side of the zone of maximum tensile stress.
July 9, 1976
Date of Patent:
July 4, 1978
Societe Technique pour l'Utilisation de la Precontrainte
Abstract: A system for offloading granular materials from a tanker designed to carry oil. The tanker includes pressurized holds for oil and a blower system coupled to the pressurized holds. The pressurized nature of the holds and the blower system already existing on, or added to, the ship are utilized to unload granular materials from the holds. In one embodiment, two concentric pipes extend through one or more Butterworth openings in the top of each hold. The outer pipe has several openings in it near the top of the hold. When the ship blower system is turned on, air is pumped into the hold, through the openings in the outer pipe, down the outer pipe to a discharge end near the bottom of the hold, into the granular material which it entrains, and then up the inner concentric pipe out of the pressurized hold. In another embodiment, air is pumped down one leg of a U shaped pipe to the bottom where granular material is entrained by the air, and is pumped up the second leg of the pipe and out of the hold.
Abstract: A cargo control restraint shield for use in the container of a trailer truck for weather protection of the cargo, compartmentalization of the cargo and for restraining the cargo and holding it in place. Cables are secured within the container at the upper and lower corners thereof so as to extend from the rear to the front of the container in a taut fashion. Clamps are received on the cables and are movable thereon from front to rear of the container. A flexible rectangular sheet of vinyl material has hooks mounted at the four corners thereof. Two of the hooks are secured to the clamps and two are secured to the lower cables. The clamps lock on the cables against movement of the vinyl sheet away from the cargo but may be released by long levers which hang downwardly from the cables. Long handles are attached to the hooks which are secured to the clamps and may be used to lift the hooks off of the clamps or to place the hooks on the clamps.
Abstract: In a track tamping machine, opposed pivotally mounted tamping arms are oscillated by respective single acting hydraulic cylinders controlled by one or more hydraulic duplex rotary distributing valves. Fluid supply and return lines for each piston assembly are connected to a source of pressurized hydraulic fluid by way of a respective rotary valve. Each valve has a stationary ported shell which receives a rotary cylindrical spool having a pair of axially displaced supply and return throughports which alternately register with supply and return line ports in the shell to open and close the connections between the oscillating cylinder and the supply and return lines. Such oscillating cylinders are useful in controlling the vibration of the tamper arms in a track tamper unit.