baber/WOPTO huggingface dataset:
Patent GB-739682-A (GB)
Title: Piston ring assembly and method of installing thereof
IPC: F16J9/12
Filed: 1954-04-21
Abstract: 739,682. Piston packing. WILKENING MANUFACTURING CO. April 21, 1954 [Jan. 5, 1954], No. 11545/54. Class 122 (1). A method of inserting into the ring-groove 31 a piston 30 a compound piston ring 10 comprising separable sealing elements 11, 12 retained in operative relationship to each other by a spring- clamp 14, comprises inserting the elements 11, 12 into the groove in operative relationship to each other and pushing off the clamp by contact between it and the surface of the piston adjacent the groove. A plurality of clamps 14 may be used to retain the elements 11, 12 in contact with one or more spacing elements, e.g. a corrugated spacer 13, and the sealing elements 11, 12 may be of the self-expanding type or require an expander. The spacer 13, shown expanded in Fig. 5 but about to be pushed off the ring unit, may be made of spring steel and formed with flared edges, corners or projections at the free ends of its flanges 15, 16.
Patent GB-937174-A (GB)
Title: Improvements relating to railway vehicle retarders
Inventor: NORTON DAVID JOHN
IPC: B61K7/12
Filed: 1959-04-06
Abstract: 937,174. Retarder control. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. April 6, 1960 [April 6, 1959], No. 11561/59. Class 105. In apparatus for controlling a retarder in a railway vehicle classification yard, including a cut-weighing device and an arrangement for measuring the speed of a cut in approach to the retarder, the braking pressure P of the retarder is preset in accordance with the function P = Wf(V 1  - V 2  + #G) wherein V 1  is the entry approach speed, V 2  is the requested leaving speed, W is the weight of the cut, f is a retarder constant and #G is a constant which is a function of retarder gradient. A radar speed-measuring device 30, 32 supplies a voltage analogue of the cut speed to the grid of one half of a double triode 33 and a voltage analogue of the requested leaving speed is supplied from a computor (not shown) via line 14 to the grid of the other half of the valve. The valves, which are connected as cathode followers provide at the junction of resistors 34, 35 a voltage which is a function of the difference in the speeds and this voltage is modified by resistor 37 to take account of the retarder gradient to provide a voltage proportional to (V 1  - V 2 + #G). The cut is weighed by device 40 which operates contact 42H for heavy weight cuts, contact 42L for lightweight cuts and both contacts for medium weight cuts. The contacts operate in the feedback path of an amplifier 42 and control 1 its gain to a value equal to -. The retarder W pressure in pipe 56 is measured by a Bourdon tube 38 coupled to the slider 19 of a potentiometer 17 which produces a voltage analogue of the pressure for application to the input of amplifier 43. The amplifier output propor- P tional to - is also applied across resistor 37 W and to the grid of comparator valve 36. The output of the comparator is applied to both grids of a double triode valve 47. Relays 49, 50 in the anode circuits of the valve control via contacts 51, 52, the admission and exhaust valves 54, 55 respectively controlling the flow of pressure fluid to and from the retarder. If the voltage analogue of (V 1  - V 2 + #G) pre- P dominates over that of - both relays energize W to admit fluid to the retarder, when the analogue P of -predominates both relays release to W exhaust the retarder. Resistor 46 in the input to the part of valve 47 controlling relay 50 is smaller than resistor 45 so that when the voltage analogues are equal relay 50 is energized and relay 49 is released. In this condition both admission and exhaust valves are closed and the retarder pressure is preset to the required value.
Patent GB-1004437-A (GB)
Title: Improvements in or relating to installations with endless driven traction members
IPC: A63C11/10
Filed: 1962-04-02
Abstract: 1,004,437. Amusement apparatus. B. RIXEN. April 2, 1962 [April 5, 1961], No. 11579/65. Divided out of 1,004,436. Heading A6M. A method of starting a towing installation which comprises an elevated endless traction member provided with a plurality of coupling devices for towing devices consists in the towing device lying initially perpendicular to the traction line and the object attached to the towing device following a curve substantially at right angles and towards the traction member. The traction line 7 of a skiing installation is guided along a rectangular path by guide rollers 9 to 16 and a driving roller 8 supported so as to be adjustably inclined on masts 2 to 5. A skier conveys the end of a tow line 27 to a starting cage 16 on the mast 2. With the skier at the starting path 26, the attendant in the cage couples the end of the tow line to the traction member, the traction line being guided linearly at least the length of one tow line and the skier follows the curved path. Anchored balls 64 indicate deviations of 45 degrees and 60 degrees to the curves of constant travelling speed.
Patent GB-579629-A (GB)
Title: Improvements relating to tying machines for packages and the like
IPC: B65B13/18
Filed: 1944-06-19
Abstract: 579,629. Wire-tying machines. POWER & SONS, Ltd., F. A., and PADMORE, J. N. June 19, 1944, No. 11619. [Class 45] A wire feeding bracket 20 for a wire tying machine which may be of the type described in Specification 523,786, comprises a training pulley 27 and two or more feeding and straightening rollers (22-25) one or more (23, 25) of which is or are mounted on an arm 28 pivoted at 29 and urged away from the bracket by a spring 40 but held in operative position (as shown) by an easily releasable catch 34. A hand lever 37 pivoted at 37<11> when moved inwardly closes the arm 28 into operative position and when moved outwardly releases the catch 34 and separates the pairs of rollers in order to permit the wire to be fed readily between them and around the wire training pulley 27. The plunger of the catch 34 engages recesses in the end 32 of the arm 28 which is bifurcated to embrace the handle 37. The left hand edge of the handle 37 engages the plunger of the catch 34 so that the arm 28 is released by pulling the handle 37 away from the bracket body. When the wire has been rethreaded around the rollers 22-25 and the pulley 27, the arm 28 is returned to operative position by the pressure of the rollers 38 mounted on the arm 37 when the latter is moved inwardly.
Patent GB-610779-A (GB)
Title: A method of making electric condensers and apparatus therefor
IPC: H01G13/04
Filed: 1946-04-16
Abstract: 610,779. Condensers. CONDENSATEURS BLINDES, SOC. A R.L. April 16, 1946, No. 11683. Convention date, April 30, 1945. [Class 37] A process for treating electrostatic condensers having a di-electric of fibrous material is carried out in two phases in two distinct pieces of apparatus, the first phase consisting in drying the fibrous material in a vacuum drying autoclave before impregnating it with a perfectly dry inert gas, and the second phase consisting in evacuating the inert gas and replacing it by an impregnating insulator. The apparatus for the second phase of the process comprises a vacuum autoclave in which a cylinder 1 containing a piston 9 at one end is capable of being closed at the other end by a hollow piston 10 containing a condenser casing 11. When thus closed, the cylinder 1 may be evacuated through a port 4 and the piston 9 lowered to close the port 4 just before an injection valve 5 is opened to fill the cylinder 1 with an impregnant 15. On closing the injection valve 5, the piston 9 descends slowly, pressing the impregnant through a neck 13 of the condenser casing 11 at an increasing pressure until an ejection valve 17 opens. A further downward movement of the piston 9 then forces a stopper 14 into the neck 13 of the condenser casing 11, the two pistons then being lowered together so as to uncover a tube 7 from which a blast of gas cleans the cylinder 1 from any excess of impregnant.
Patent GB-459014-A (GB)
Title: Improvements in or relating to belt-fed automatic fire arms
IPC: F41A9/54
Filed: 1936-04-25
Abstract: 459,014. Automatic guns. BOYSSON, J. B. A. DE, 6, Boulevard Ornano, Paris. April 25, 1936, No. 11839. Convention date, Sept. 18, 1935. [Class 92 (ii)] Relates mainly to belt - feeding devices for automatic firearms mounted on a rotatable support such as an aircraft turret. According to the invention, a belt guiding device comprises elements curved to form a substantially closed circular path about the axis of elevation of the firearm, one element being on the firearm support and another on the firearm, and the arrangement being such that when the firearm is adjusted in elevation the circular path is correspondingly extended or shortened to provide a continuous channel for the belt from a belt magazine on the support to the breech of the firearm. As shown in Fig. 4, the guiding element on the support is a closed tube 1 ending with an open-sided curved part 2 registering with an open-sided curved guide 4 on the firearm, which slides on the part 2 as the firearm is adjusted in elevation. In a modification, the guide comprises a number of telescopic sectors. The spent cartridge cases and links of the belt may be guided out by a similar device comprising a plate 9 rotatable in elevation with the firearm and slidably closing an open-sided box 7 on the support, the cases and links passing through openings and channels 10, 11 to the box 7 and thence through the outlet 12.
Patent GB-744378-A (GB)
Title: Improvements in and relating to clutches
IPC: G11B15/50
Filed: 1953-04-29
Abstract: 744,378. Friction clutches. GRUNDIG, M. April 29 1953 [April 29, 1952], No. 11839/53. Class 80(2) An electromagnetic clutch comprises a stationary coil 4 carried by a fixed spindle 3 and arranged within a pair of shells 2, 1 forming the driving and driven members, the shells having inner walls 7, 15 of magnetic sheet iron and outer walls 8, 17 of plastic material cast, sprayed or pressed on to the inner walls. The shells are journalled on the spindle 3, and the shell 2 is movable axially under the action of the magnet, the inner wall 7 serving as the armature, to bring the flanged end of the wall 7 into engagement with a friction insert 11 of non-magnetic material in the end of the shell 1. As applied to magnetic tape or wire recording apparatus, wall 8 has a groove 10 to receive a driving belt and wall 17 has a stub shaft extension 12 with ribs 13 to receive a reel.
Patent GB-292970-A (GB)
Title: Improvements in attenuation devices for acoustic wave transmission systems
IPC: G10K13/00
Filed: 1928-04-23
Abstract: 292,970. Electrical Research Products. Inc., (Assignees of Harrison, H. C.). June 28, 1927, [Convention date]. Sound-modifying appliances ; gramo phones combined with telephone receivers.-A sliding member Operated by a rack and pinion and carrying three different acoustic attenuations 37 any one of which may be connected in the sound passage between a gramophone tone-arm (above) and the horn (below), carries also an elbow fitting 30 by means of which a telephone receiver mav be associated with the horn. Specification 252,657 is referred to.
Patent GB-808185-A (GB)
Title: Automatic brake shoe adjuster for motor vehicles and trailers
IPC: F16D65/54
Filed: 1956-04-19
Abstract: 808,185. Automatic brake-adjusting mechanism. ECKARDT, K., and ECKARDT, J. April 19, 1956, No. 12000/56. Class 103 (1). In an automatic brake shoe adjusting mechanism for motor vehicle brakes, the amount by which the brake shoe may be retracted is determined by an adjusting member situated close to the brake drum having a lost-motion pin and slot connection with the brake back plate permitting movement of the adjusting member only in the direction of application of the brake shoe to take up the wear in the linings. In the embodiment illustrated, brake shoes 3 and 4 are provided with pins 14, 16 which operate in holes 15, 17 in the adjusters 9 and 10 respectively ; the holes 15 and 17 being of such dimensions as to allow a limited amount of free movement of the brake shoes before the adjusters 9, 10 are moved outwards to adjust for wear of the friction linings 5. Frictional restraint to movement of adjusters 9, 10 is offered by connection 13 consisting of a housing, secured to the back plate 1 of the brake, having friction surfaces 18, 19, 20 and 21 which grip the adjusters 9 and 10 with a force determined by the spring 22. Temperature compensation is achieved by the choice of material for the adjusters 9 and 10 and the positioning of same close to the friction surface of the brake drum in the effective range of the braking heat radiated from the drum.
Patent GB-753761-A (GB)
Title: Improvements in and relating to gas turbine installations
IPC: F02C1/10
Filed: 1954-04-26
Abstract: 753,761. Gas turbine plant. AKT.-GES., FUR TECHNISCHE STUDIEN. April 26, 1954 [April 30, 1953], No. 12013/54. Class 110(3) [Also in Group XIII] A gas turbine plant in which the working medium is indirectly heated in a heater by an intermittently produced heat carrier has supplementary heat storing means in constant heat exchange with the working medium provided between the intake of the working medium into the heater and the turbine inlet. In the plant shown the compressed and heated working medium after expansion in a turbine 1- flows through a heat exchanger 2 and a cooler 3 to a compressor 4. After compression, the working medium passes through the heat exchanger 2 to the heater 7 where it is heated in tubular coils 8. A heat accumulator 11 filled with heat storing material 12 having ducts 13 through which the working medium flows is arranged between the heater 7 and turbine 1. During the periods when the heat carrier flows through the heater 7,. the working medium is heated. Part of this heat is transferred to the material 12 and then returned to the working medium during the periods when the flow of the heat carrier is stopped. The heat storing material 12 may be formed by material in loose layers e.g. a stone filling, or by'heat resisting metal parts. The pressure level in the circuit may be varied by means of a compressor 15 and a blow-off valve 21. The compressor and valve may be controlled automatically as a function of the temperature of the working medium or by means responsive to the output so that the output remains constant. These two methods may be combined, the temperature control being used for coarse adjustment and the output control for fine regulation. In a modification, the heat storage material is arranged in the heater 7 between the paths of flow of the heat carrier and working medium. The plant may work on an open circuit.
Patent GB-671783-A (GB)
Title: Improvements in parachute equipment for use in aircraft
IPC: B64D17/40
Filed: 1950-05-15
Abstract: 671,783. Adjustable back rests. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. July 27, 1950. [May 15, 1950] No. 12040/50. Class 52 (ii). [Also in Group XXXIII] A container for holding a parachute pack, carried by the airman attached to his harness, is so mounted on an aircraft seat structure and combined with a control actuated bv the airman that the container and pack form an adjustable back rest for the airman. The container comprises a compartment 4 to house the parachute, the container being pivotally mounted on the seat at 3 and provided at its upper end with shackles 24 for connection to the airman's harness. Mounted on each side of the seat on the pivot of a shackle 24 is one element 8 of a collapsable stay, of which the other element 9 is pivoted at 10 to the seat back. The member 8 is formed with notches which engage with a spring loaded plunger moved transversely of the axis of the members 8, 9 by a lever 7 actuated by a handle 15 and a cable 14. By movement of the handle to release the spring loaded plunger, the airman can adjust the position of the container about the pivot 3 and then lock it in any selected position. The notches in the member 8 may be bevelled on one side to enable the container to be moved aft only without release of the plunger or they may be formed so as to prevent movement in either direction. A stud 26 in the part 9 engages a slot in the part 8 to prevent separation of the two parts.
Patent GB-1452553-A (GB)
Title: Electric wall boxes
IPC: H02G3/08
Filed: 1974-03-19
Abstract: 1452553 Making electrical wall boxes FITTER & POULTON Ltd 20 May 1975 [19 March 1974] 12084/74 Heading B3A [Also in Division H2] A metal electrical enclosure or box comprising a base wall 1 and a continuous upstanding wall 2 in which the edge of an opening in the wall is rolled over to form a smooth continuous lip 4 defining an aperture 3. The opening is produced by removing a "knock-out" panel and the lip is formed by a press top. Any number of apertures may be produced in any of the walls and the apertures may also be circular.
Patent GB-186368-A (GB)
Title: Method and apparatus for raising sunken ships
IPC: B63C7/04
Filed: 1921-04-27
Abstract: 186,368. Reno, J. W. April 27, 1921. Sunken ships, raising.-Sunken ships are first raised to a position near the surface of the water by means of a number of buoys 11 attached to the vessel, a number of pontoons or the like 1 are then positioned beneath and against the bottom of the vessel while the latter is suspended by the buoys; the buoys are then detached from the vessel and attached to the pontoon in order to raise the deck above the surface of the water. The pontoons are positioned against the bottom of the vessel by placing them on the sea bottom beneath the vessel or towing the latter over them while it is suspended by the buoys and then filling them with air from a vessel 12 on the surface of the water, water being admitted and discharged through holes 7. The pontoons may be of box shape, Figs. 5 and 6, strengthened by truss frames 2 and transverse walls 3 with their lower edge just clear of the lower side, the arrangement being that when water has been admitted to the pontoon, air may be admitted by the pipe 6 to the centre compartment independently of the other two. On further air being admitted it passes under the diaphragms 3 to the outer compartments. Rings 8 are provided for reception of the lifting hooks 9, Figs. 3 and 4. The box-shaped pontoons may be used in pairs hinged together or joined by pivoted struts at their upper edges and connected by chains at their lower edges. A modified form of pontoon is shown in Fig. 10, in which the bottom walls are omitted and braces 19 provided. The walls may be hollow and divided into compartments to serve as air chambers.
Patent GB-274595-A (GB)
Title: Improvements in wet separating apparatus for treating grain and other materials
IPC: B03B5/56
Filed: 1927-02-08
Abstract: 274,595. Sproul, J. Feb. 8, 1927. Rotary washing apparatus.-Apparatus for washing and separating materials such as grain comprises a cylinder A provided internally with compartments B formed by circumferential and longitudinal partitions C, D, revolving in a water tank T, and a, coaxially revolving member N consisting of a fabric or perforated cone M and a cone O provided with ribs P. Liquid containing the material to be treated is fed to the tank at the end R, and the grain, &c., is picked up in the compartments B and falls into a hopper H from which it is removed to a lateral outlet by a conveyer K. Material still -carried in the liquid reaches the cone M from which it is passed to a discharge channel Y, the liquid 'being discharged at an outlet S.
Patent GB-580292-A (GB)
Title: A method of joining superposed sheets of asbestos cement
IPC: F16B19/06
Filed: 1944-06-26
Abstract: 580,292. Rivets. UNIVERSAL ASBESTOS MANUFACTURING CO., Ltd., and PENDRIGH, T. G. June 26, 1944, No. 12122. [Class 89 (i)] [Also in Group XXII] Rivets, for use in connecting together sheets of asbestos cement or for connecting such sheets to angle or other bars, are made from bars of asbestos cement before the material has fully set. The sheets are formed with countersunk holes and the rivets A are moulded in situ.
Patent GB-906434-A (GB)
Title: Means for mounting a diode on a generator
Inventor: PRICKETT ALFRED DONALD
IPC: H01L25/03
Filed: 1960-04-06
Abstract: 906,434. Fastenings. LUCAS (INDUSTRIES) Ltd., JOSEPH. March 29, 1961 [April 6, 1960], No. 12136/60. Class 44. A diode 6 is supported on a generator housing 3 by a spring clip 7 which has a forked end with down-turned parts 7d, 7e which embrace the diode. The clip may form an electrical connection to the diode.
Patent GB-143032-A (GB)
Title: New or improved game apparatus
IPC: A63F3/00
Filed: 1919-05-15
Abstract: 143,032. Maltby, T. May 15, 1919. Board games.-An apparatus for playing a game comprises a wooden, sheet-metal, &c., standard with perforated flat sides of different colours. Pins 9 projecting from metal or cardboard figures may be inserted in the perforations. Flags may be employed instead of the figures. In playing a game, a die (or dice), Fig. 4, is thrown and the figures are accordingly moved up or down the standard, further movements up or down being made for entries into certain perforations 7, the object of the players being to reach the topmost perforation 6. Specification 17965/89 is referred to.
Patent GB-1474843-A (GB)
Title: Developer distribution devices for copying machines
IPC: G03G15/08
Filed: 1975-03-25
Abstract: 1474843 Discharging hoppers LUMOPRINT ZINDLER KG 25 March 1975 [9 April 1974] 12298/75 Heading B8S [Also in Division G2] Hopper exit slot 7 is opened and closed by a shutter 13, which is pivotally mounted on a moving arm 15, and is biased against the lower lip 14 of the slot 7 by springs 22. When electromagnetic actuated 21 is operated the arm 15 rotates with shaft 18, and the shutter is moved away from step 26, on which it otherwise abuts. When actuator 21 is switched off, spring 28 causes the edge 25 of the shutter to move towards the stop 26, and cut off developer powder escaping through the slot 7.
Patent GB-732680-A (GB)
Title: Improvements relating to fastenings
IPC: A44C5/20
Filed: 1952-05-15
Abstract: 732,680. Fasteners. LEWITT, I. G. May 14, 1953 [May 15, 1952]. No. 12332/52. Class 44. Relates to a fastening of the kind for releasably connecting together two ends of a length or lengths of material and comprising two coupling members each adapted to be secured to one of said ends. As shown a channel member 11 secured to one end of a wristlet 20 is provided with a projection or cross-bar 18 engageable in any one of three openings or slots 13 in a tubular casing 12 of rectangular cross-section, which casing is connected by a pin 25 to a swivel member 19 secured to the other end of the wristlet 20. Slidable in the casing against the urge of a spring 17 is a detent member 14 having three claws 15 respectively associated with the three slots 13. The member 14 is slotted at 26 to allow passage of the pin 25. At its outer end 16, the member 14 is serrated to allow manipulation by a finger or thumb nail. As shown a claw 15 engages in an eye formed between the bar 18 and the base of the channel 11. If desired a safety catch 21 may be mounted on the casing at 22 which catch has a portion 23 to engage in a recess 24 in the member 14 and positively lock it against movement.