baber/WOPTO huggingface dataset:
Patent GB-923297-A (GB)
Title: Improvements in electric lampholders
IPC: H01R33/22
Filed: 1961-01-17
Abstract: 923,297. Lamp holders. K. S. ADIE. Dec. 7, 1961 [Jan. 17, 1961], No. 1829/61. Class 38 (1). A screw lampholder has the screw thread formed by three or more resilient bar-like members which form chords relative to the internal cylindrical surface of the holder from which they are supported at their ends and in which they are collectively arranged in screwthread formation so that at the final stage of inserting a screw cap lamp, the resilient members are deformed in a direction parallel to the axis of the holder, thereby exerting a locking pressure between the lamp cap and the inner end of the socket. Three or more resilient members may be formed from one length of wire or rod, e.g. stainless steel (see Fig. 4 for the quadrilateral case) the resulting comers being located in openings in the inner wall of the socket. A gap is provided in the wire loop to allow for expansion and contraction and one end may fit into a radial opening in the wall to prevent rotation. The wall of the holder may restrict the outward movement of the resilient members so that the lamp cannot be withdrawn without being unscrewed. Contacts 21, 22 may be provided at the inner end of the socket such that no electrical contact is made until the lamp is almost completely within the socket.
Patent GB-1278923-A (GB)
Title: Improvements in or relating to electrical control apparatus
IPC: H02M5/257
Filed: 1970-01-14
Abstract: 1278923 Control systems for consuming apparatus HONEYWELL Inc 14 Jan 1970 [29 April 1969] 1902/70 Heading H2H Apparatus for controlling the firing of a thyristor, e.g. a triac, is provided with means whereby the thyristor fires every half-cycle of the A.C. supply at approximately the zero crossover of the source. A load 19 is arranged to be energized from an A.C. source 11, 12 by way of a triac 10 which is fired by the discharge of a capacitor 17 into a transformer 13. A device for synchronizing the firing of the triac 10 with the approximate zero voltage level of the A.C. source 11, 12 includes a full wave rectifier 23 the output voltage waveform of which drops to zero every half-cycle as shown by the waveform associated with line 26. This rectified voltage is applied to a transistor 27 to render it conductive whenever the voltage exceeds, say, 1À8 volts, i.e. for a time period of 3 electrical degrees on each side of the zero crossover of the A.C. source 11, 12, the transistor being non- conductive during this time period. During this period whilst transistor 27 is non-conductive a second transistor 31 is rendered conductive, thereby applying a positive D.C. potential 35 to a point 41 in the form of a series of square wave pulses 89 each pulse having a duration of 6 electrical degrees. The potential at a second point 40 is lower than that at the point 41 due to the potential dividing device 38, 44. When it is required to energize the load 19 a switch 18 is closed so that whenever a potential exists at the point 40 a transistor 21 becomes conductive to charge a capacitor 17 from a D.C. source 20 to a voltage determined by the potential of the point 40. During the time period when the pulse potential 39 exists at the point 41, the potential at base 1 of unijunction transistor 15 is higher than that of the emitter, i.e. the voltage on the capacitor 17, thus the transistor 15 is non-conductive. When the pulse potential 39, and hence the base 1 potential, disappears, the transistor 15 becomes conductive to discharge the capacitor 17 into the transformer 13, thus firing the triac 10 to energize the load. The load 19 is thus energized in a "burst-firing" manner at approximately the zero voltage crossover of the A.C. source.
Patent GB-353399-A (GB)
Title: Improvements in packing composition
IPC: F16J15/10
Filed: 1930-01-20
Abstract: 353,399. Stuffing - boxes. DORIN CORPORATION, Union City, New Jersey, U.S.A. Jan. 20, 1930, No. 1922. Convention date, July 8, 1929. Void [Published under Sect. 91 of the Acts]. [Class 122 (v).] In a packing composition for use at high temperatures a binding material is employed comprising a colloidal hydrocarbon and a glyceride of a fatty acid. Preferably the binder comprises 2¢ parts by volume of blown membaden oil and 7¢ parts by volume of rubber. Alternatively linseed oil, China wood oil, soya bean oil, colza oil, cottonseed oil or neatsfoot oil may be employed. The packing composition may consist of 150 parts by weight of antifriction metal chips, 8 parts of asbestos fibre, 2 parts of flax fibre, 30 parts of graphite and 10 parts of binder.
Patent GB-952439-A (GB)
Title: Cleaning device, particularly for cleaning floors and window panes or the like
IPC: A47L13/14
Filed: 1963-01-16
Abstract: 952,439. Self-wringing mops. J. BLUM. Jan. 16, 1963, No. 1945/63. Heading A4F. Cleaning liquid is squeezed from a sponge mop head 2, Fig. 2, by the operation by a lever 25 on the mop handle 5 of a pull rod 21 to draw together by cables 19, 20, Fig. 3, plates 15, 16 slidable on bars 7, 8 extending through the mop head 2. The cables 19, 20 pass over rollers 26, 27 mounted in the holder 4 to which the rods 7, 8 are secured and which does not project beyond the periphery of the spong head 2. In a further construction for use for cleaning windows and blackboards the mop has a short handle and guide rollers are provided for the cables.
Patent GB-1176126-A (GB)
Title: Elevator-System Controls.
IPC: B66B1/18
Filed: 1968-01-15
Abstract: 1,176,126. Lift control systems. RELIANCE ELECTRIC & ENG. CO. 15 Jan., 1968 [20 Jan., 1967], No. 2063/68. Heading B8L. In a system in which requests for up or down service made from landings (hall calls) are automatically assigned to the optimum one of a plurality of cars, the assignation is cancelled if a call within the car (car call) is subsequently made, and the original hall call is re-assigned in accordance with the changed conditions. The system uses semi-conductor logic circuitry based on " command memory units " (Fig. 2, not shown) and " demand memory units " (Fig. 3, not shown), each mounted on a plug-in chassis and there is one of each, for each floor, for each car. A command unit is " set " when a car call command is " accepted," i.e. it is for a floor in the right direction, the car has not reached the slow down point for that floor, and the call is not blocked by overriding emergency service controls. A demand unit is " set " when a hall call for that floor is assigned to that car (or the car is already at that floor with doors open, motor-generator running and logic direction correct) and is " reset " when a car call is accepted for that car for any floor except its own (so that a hall call will not be reassigned if that car, when travelling in the right direction, is going to stop at that floor by reason of a car call). The hall call then becomes " free " and is re-assigned as if it were a new call. The system for assigning the calls is preferably that described in Specification 1,163,727, in which a voltage analogue of the work load on and position of each car is produced and allotment is made to that car whose voltage is the first to coincide with that of a ramp voltage.
Patent GB-469554-A (GB)
Title: Landing and launching device for aircraft
IPC: B64F1/36
Filed: 1936-01-23
Abstract: 469,554. Load-handling machines. BRIE, R. A. C. Jan. 23, 1936, No. 2203. [Class 78 (iii)] [Also in Group XXXIII] A device for installation in a ship for facilitating the launching and landing of aircraft, in particular aircraft of the rotarywing type, comprises a platform, of which the overall plan dimensions are of the same general order of magnitude as those of the aircraft intended to operate therefrom, and means for mounting the platform in the ship so constructed that the platform can be oriented about a vertical eccentric axis located near the ship's side so that the platform can be swung from an inboard position to an outboard position and adjusted to suit the local relative wind. A pillar 15, Fig. 2, is supported on a bracket 16<1> secured to the structure of hull 16 of a ship and carries a bracket 14 on which is a resiliently mounted platform 13. The arrangement is such that platform 13 may be swung inboard over a hatchway 19, lowered to the level of upper deck 17 or to the level of lower deck 18. The platform may thus serve as a lift. In one form, Fig. 4, platform 13 is mounted on bracket 14 by spring means 20 and hydraulic damping device 21. Alternatively the platform may be mounted on gimbals and be gyroscopically stabilized. Bracket 14 is rotatably mounted on pillar 15 and carries driving means comprising a motor 27 driving spur gear 30 through bevel pinions 28, 29, spur gear 30 meshing with a gear wheel 31 fixed on the pillar. Pillar 15 is non-rotatably supported in a fixed cylindrical column 33 of which the lower part constitutes cylinder 34 of a hydraulic jack of which the ram element 35 is connected by a rod 36 passing through a gland 37 to the lower end of pillar 15. The jack is connected by pipe 39 to a pump comprising a cylinder 40 and piston 41, the latter being driven by piston rod 42 connected by a link 44 to a lever 45 on a worm-wheel 46 driven by a motor 48.
Patent GB-384468-A (GB)
Title: A new and improved rapidly adjusting spanner to take nuts of different sizes
IPC: B25B13/18
Filed: 1932-01-26
Abstract: 384,468. Sliding jaw wrenches. IBBOTT, A. P., Aston, Sherwoods Road, Oxhey, Watford, Hertfordshire. Jan. 26, 1932, No. 2352. [Class 61 (iii).] The sliding-jaw member 16 of an adjustable spanner is moved into gripping engagement with the nut by a cam 17 having a smooth operative surface and pivoted to the shank 13 about midway thereof by a screw 18, a screw 16a on a lug 16b on the jaw member 16 engaging a flange 17a on the cam so that reverse movement of the cam moves the jaw member 16 backwards. In the modification shown in Fig. 2 the movable jaw 25 is carried by a slide 23 movable up and down in an undercut guide 32 in the shank 27 by means of the pivoted cam 21 which is formed or provided with a knurled disc 30. Another modification shown in Fig. 6 comprises a flat plate 71 with jaw apertures 74, 75 at the ends and movable jaws 80, 81 on slides 82, 83 which are guided by flanges 88, 89 and actuated by the pivoted cam 78. In another construction, Fig. 8, the stem 45 of the movable jaw 48 slides in the tubular handle 41 and carries a pin 44 engaging a spiral groove 43 on the cam member 42 ; the jaws are shaped at 50 to engage the corners of nuts and at 49 to engage the corners of angular recesses. In a further modification shown in Fig. 9 a two-turn snail cam 56 is mounted for endwise movement on a fixed screw 54 to keep the operative part of the cam in alignment with the movable jaw stem 51. Fig. 10 shows a stepped cam 91 with the stops 92 merging gradually into one another at 95 and coacting with a shank 94 having rounded corners 97 at the end 96. For a wider range of adjustment the cam may be mounted on a screw adjustable slide member or on a slide adapted to be locked in a number of positions along the shank.
Patent GB-555500-A (GB)
Title: Improvements in or relating to aeroplane landing gear
IPC: B64C25/50
Filed: 1942-02-23
Abstract: 555,500. Hydraulic shock absorbers. RUBERY, OWEN MESSIER, Ltd. (Soc. D'Inventions Aeronautiques & Mecaniques, S.I.A.M.). Feb. 23, 1942, No. 2383. [Class 108 (iii)] [Also in Group XXXIII] An anti-shimmy device for a castor landing wheel for aircraft comprises a series of brake blocks carried by spring arms and applied to a relatively-rotating part by a spring-loaded wedge device. A leg enclosing a shockabsorber is shown and comprises a tubular member 32 to which the wheel-carrying fork is attached at 35 and which is slidable within an outer tubular member 31 which may be mounted on the aircraft for retraction by a pivot 38. The cylinder 46 of a shockabsorber is secured at its upper end 45 to the member 31 by a ring-nut 47 and screw-pins 49 and the rod 54 of the piston 55 abuts on a disc 57 secured to the member 32. The piston comprises cap-washers 59, 60 pressed into engagement with the wall of cylinder 46 by spring-urged metal washers 61. A partition 65 is provided with a ball-valve 67 and damping passages 68, and there is a filling-valve 51. The antishimmy device comprises brakeblocks 74 mounted by spring- arms 75 on a collar 76 secured to the cylinder 46 and urged to engage the wheel-carrying tubular member 32 by a wedge-ring 73 under the action of a spring 72 which abuts also on a collar 71 secured to the cylinder. In a modification the brake-blocks and the spring are carried by a slidable tubular member that corresponds to the member 32 and engage the outer member 31. The slidable member in this construction slides at its lower-part in a spherical bush attached at the lower end of the outer member 31 to prevent jamming of the telescopic movement under lateral stresses. Specification 519,275, [Group XXXIII], is referred to.
Patent GB-175610-A (GB)
Title: Improvements in ovens for domestic use
IPC: F24C15/32
Filed: 1922-01-26
Abstract: 175,610. Moisson, C. Feb. 12, 1921, [Convention date]. Cooking-stoves; ovens.-A domestic oven stove comprises three casings 1, 6, 5, the gases from the burner 4 or other heating- means passing first between the inner and intermediate casings 5, 6, thence into the .oven space, and finally between the intermediate, and outer casings 6, 1 to the outlet 2. In the oven shown, tubes 8 lead the gases from the oven space to the space between the intermediate and outer casings. The casing 6 is preferably covered with asbestos; the outer casing 1 may be similarly covered.
Patent GB-667003-A (GB)
Title: Improvements in or relating to devices for anchoring a ribbon to a hub
IPC: G03B21/32
Filed: 1950-01-31
Abstract: 667,003. Kinematograph spools. PAILLARD SOC. ANON. Jan. 31, 1950 [Feb. 8, 1949], No. 2464/50. Class 97 (i). To anchor a ribbon, such as a kinematograph film, to a hub, at least one coiled spring is secured to the hub with its axis in a plane approximately perpendicular to the hub axis, adjacent turns of the spring being in contact at one side of the spring in points lying in said plane. The end of the ribbon is inserted between the turns of the spring. In the form shown, the spool has flanges 1 secured to a hub 2 with openings 4 beneath each of which is a housing with end walls 8, 9 and an arcuate bottom 7. A spring 6 rests in each housing, its ends being bent to engage holes in the end walls thereof. This engagement may merely locate the spring, wound in the form of a curved helix, or the spring ends may be anchored to the walls 8, 9 to pull it to the shape of a curved helix by conformity with the shape of the wall 7. In another form, the spring is a straight helix secured at one end only to its housing wall. The other end turn is extended, in its own plane, through a slot in the wall 7 to form a fingerpiece, accessible through a hole in the spool flange. Pressure on the finger-piece separates the turns of the spring, as seen through the aperture 4, for insertion of the film end. In a different construction, the spool hub is completely encircled by a spring with its ends joined.
Patent GB-1099901-A (GB)
Title: Three-phase on-load disconnecting switch
IPC: H01H5/02
Filed: 1965-01-20
Abstract: 1,099,901. Heavy current switches. FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. N.V. Jan. 20, 1965 [Jan. 21, 1964; April 13, 1964; Oct. 5, 1964], No. 2472/65. Heading H2B. A three-phase on-load disconnecting switch comprises an insulating base 11 containing fixed contacts (not shown) and a cover 13 carrying bridging contacts 15 mounted in cylindrical housings 14, the housings 14 of each phase being coupled together by interengaging cylindrical projections 26, 28 and coupled to an operating cylinder 24 by projections (30) (Fig. 6, not shown), the cylinder 24 being moved over a piston 22 (Figs. 9, 10, 11, not shown) by compressed air fed to either side of the piston via concentric tubes 17, 20. The cylinder is held in its end position by magnets 39, 42 or by mechanical members (52) (Figs. 2b-2c, not shown) and its speed is reduced at the end of an opening operation by a damping device (Figs. 9-11, not shown) comprising a spring-loaded valve member 59 with a restricted aperture 61. An arm 44 mounted pivotally on the moving assembly has a roller 48 moving on a track 49 to stress a spring 47 to oppose the tendency of the weight of the assembly to close the switch. The cover 13 may be of transparent insulating material to enable the condition of the switch to be seen.
Patent GB-1037051-A (GB)
Title: Improvements in or relating to photo-copying methods and apparatus
Inventor: HOSKINS VALERIE RUTH
IPC: G03D9/00
Filed: 1962-01-23
Abstract: 1,037,051. Photographic transfer apparatus and processes. BLOCK & ANDERSON Ltd. April 23, 1963 [Jan 23,1962], No. 2480/62. Headings G2A and G2C. A silver salt diffusion transfer process comprising registering a latent-image bearing negative sheet with a receptor sheet and securing them along the leading edge, placing a loose separator member in the form of a bar between the two sheets so that it is close to and parallel with the connection, feeding the two connected sheets into developer apparatus and stopping the bar at a position so that when the sheets move onwards developer liquid can flow freely between the sheets before they are brought into intimate contact to effect image transfer. As shown, a sheet 1 bearing a latent negative image is secured to an imagereceiving sheet 2 along its leading edge 3 by means of adhesive tape 4. A bar 6 is placed between the two sheets and the two projections 7 prevent the bar entering the developer apparatus as they are caught by the ends of the entry slot. The bar 6 may be replaced by a circular section bar having cranked extensions at each end or by a bar with flexible connections which engage with the outer ends of the entry slot.
Patent GB-1218363-A (GB)
Title: A marine propulsion system
IPC: B63H1/28
Filed: 1968-01-17
Abstract: 1,218,363. Marine propellers. OCEANICS Inc. 17 Jan., 1968 [23 Jan., 1967], No. 2484/68. Heading B7V. A screw propeller 10 with hub portion 17 and blades 10a-10d has fluid ducts 13a, 13b, 13c in the blades. The fluid discharge openings 16 are located within a distance of 0À85 of the propeller tip radius from the blade root and they direct a jet sheet at an angle of between 15 and 75 degrees from the nose-tail line of each chord section of the blades. In the embodiment shown the width of the discharge openings is between 0À005 and 0À03 of the length of the nosetail line of the chord section and the openings are within a distance of 0À15 that length from the trailing edge of a blade. Fluid is passed to the ducts down drive-shaft 11 and through ports 18 of the hub.
Patent GB-1032161-A (GB)
Title: Brewing apparatus
IPC: A47J31/40
Filed: 1964-01-21
Abstract: 1,032,161. Beverage-making apparatus. RUDD-MELIKIAN Inc. Jan. 21, 1964 [May 31, 1963], No. 2660/64. Heading A4D. In apparatus using sealed cartridges 21 of beverage solid in a filter strip 20, a brewing chamber separates into three sections providing a gap between a piston 27 and a cylinder 25, through which hot water from nozzles 23 can flow, and a gap between cylinder 25 and a base 23, through which strip 20 runs. A brewing cycle may be initiated by a coin-release mechanism which energizes motor M2 to drive cam shaft 78 through gears 76 and 77. Cam 79 moves slider 60 downwardly, as follower 62 rides up on to the concentric dwell portion of the cam, and compresses springs 61. Slider 60 is fixed to rods 59 which are slidable in frame members 54 and 56 and carry cylinder 25 at their lower ends. The cylinder is accordingly lowered to clamp strip 20 between its lower end and a rubber-like sealing ring provided in base 23. Base 23 is pressed slightly downwardly in order to bring four sealing pressure equalizing compression springs 34 into play. The operation of a switch by a further cam 81 on shaft 78 opens a solenoidoperated valve for a time sufficient to deliver the desired quantity of hot water, through nozzles 26, to cylinder 25. Thereafter, follower 68 reaches the developed part of cam 80 and piston 27 is driven downwardly to close cylinder 25 with a cushion of air trapped above the liquid. After the water has been expelled through the cartridge 21, the continued descent of piston 27 expels the air through the cartridge to complete the extraction. Finally, compression springs 66, acting on the piston carrying yoke 65, abruptly return the piston, as follower 68 reaches part 80a of cam 80. Before motor M2 is switched off, a second cam 81 operates a switch S.W.2 to start motor M1, which imparts a 120 degree rotation to sprocket 41 and thus replaces the spent cartridge 21 by a fresh one. Alternatively, the drive to sprocket 41 may be imparted from shaft 78 (Figs. 9-12, not shown).
Patent GB-212526-A (GB)
Title: Improvements in or relating to gas compressors
IPC: F25B31/00
Filed: 1924-02-01
Abstract: 212,526. Soc. Anon. de Travaux Dyle et Bacalan. March 9, 1923, [Convention date]. Valves, arrangement of.-The inlet of gases to a compressor cylinder, especially in refrigerating plant, is effected by the piston, which is hollowed out and formed with an outlet controlled by a valve in the piston, the valve being connected to the piston rod which is connected to the piston by a pin which is rigidly connected to one part and engages slots in the other part, the lost motion opening and closing the valve. A small auxiliary piston may be arranged in a cavity of the piston rod to deaden the shocks of the valve motion. Fig. 1 shows a compressor cylinder in which works a piston 10 having an opening 11 in the head. and slots 14 in the sides. Within the piston works a valve or cap 8 screwed to the piston rod 2 and traversed by a pin 13 the ends of which are located in the slots 14. The sides of the valve are grooved so that, in the position shown, the downward movement of the valve and piston allows gas entering at the suction inlet 5 to pass to the other side of the piston through the opening 11. Upward motion of the piston rod brings the valve against the opening 11 and closes it. Fig. 4 shows a modified piston in which the pin 13 is fixed; slots 14 are formed in the valve 8 which is hollow and contains a small piston 20 fixed on the pin and moving in the chamber 16 formed in the valve; this chamber acts as a cushioning device, being closed at one end by a plug 17, except for leakage channels 18.