baber/WOPTO huggingface dataset:
Patent GB-350985-A (GB)
Title: A record and a process for the manufacture thereof
IPC: B29C43/02
Filed: 1929-12-13
Abstract: 350,985. Moulding gramophone records. WELLIT-GES. PLESS & CO., 14, Straussengasse, Vienna. Dec. 13, 1929, No. 38278. Convention date, Oct. 3, 1929. Void [Published under Sect. 91 of the Acts]. [Class 87 (ii).] In moulding gramophone records in a substance such as acetyl cellulose, in order to render the density of the substance uniform the stamping moulds are elastically mounted, so that the pressure exerted by them is equalized. The Figure shows a moulding press, to which heat may be applied by any suitable means. Each of the steel fittings a, a<1> receives a copper plate b, to which a matrix or die c is soldered, the plates b being backed by pressure-equalizing layers d of paper, fabric, rubber, leather, or the like.
Patent GB-1094266-A (GB)
Title: Improvements in and relating to gaseous fluid conveyor systems
Inventor: ORCHARD WILLIAM JAMES HENRY
IPC: B65G53/00
Filed: 1963-09-30
Abstract: 1,094,266. Pneumatic conveyers. TATE & LYLE REFINERIES Ltd. Sept. 29, 1964 [Sept. 30, 1963], No. 38324/63. Heading B8A. The pipe-line for conveying particulate materials is arranged in a curved path following the free-flight gas-borne trajectory of the particles to reduce abrasion and dust formation. Ballistic formulµ for calculating the trajectory are given. The cross-sectional area of the pipeline may be increased towards the delivery end to reduce the final velocity of the particles.
Patent GB-1388002-A (GB)
Title: Pressure regulator in a variable pump
IPC: F04B49/08
Filed: 1972-08-17
Abstract: 1388002 Rotary positive-displacement pumps ROBERT BOSCH GmbH 17 Aug 1972 [20 Aug 1971] 38344/72 Heading F1F [Also in Divisions G2 and G3] The eccentricity of a cylinder 14 of a sliding- vane pump is controlled by a pressure compensating system including a first piston 17 subjected at 24 and 26 to pump discharge pressure and a second, larger area piston 18 subjected at 30 to a control pressure established by spool 42 which responds to pump discharge pressure in chamber 20 as opposed by spring 27 and aided by a spring 28 adjusted by piston 17. Chamber 20 may connect with line 30 via a line (31) including a restriction (32) which prevents total pressure loss in the chamber when the spool connects line 30 to drain. In the Fig.4 modification, piston 50 replaces piston 17 and feeds back to the spool via piston 52 and spring 58.
Patent GB-925369-A (GB)
Title: Improvements in or relating to power transmission mechanisms
IPC: F16H29/08
Filed: 1960-11-10
Abstract: 925,369. Variable-speed ratchet gear. C. O. TOWLER. Oct. 31, 1961 [Nov. 10, 1960], No. 38573/60. Class 80 (2). In a continuously variable ratchet gear the primary member is in sliding connection with a secondary member to which it imparts oscillation, the centres of movement of the members being relatively movable to vary the amplitude of oscillation of the secondary member. An input shaft 1 drives three eccentrics 2a, the connecting-rods 3 of which oscillate channelsection primary members 5a pivoted on shafts 5 in a casing 6. Secondary members 13, having crossheads 15 sliding in the channels 5b of the primary members, are pivoted on shafts 11 in a rotatable carrier 12 and oscillate segmental gears 10 engaging teeth on the peripheries of one-way devices 9 on an intermediate shaft 8. The shaft 8 drives the output shaft 26 through a layshaft forward/reverse gear engaged by a double dog clutch 51. Speed variation is attained by rotation of the carrier 12 about the shaft 8 to vary the point of engagement of the crossheads 15 in the channels 5b, the carrier being rotatable manually or by an hydraulic piston 17. Oil is admitted to either side of the piston under the control of a valve 39 actuated by an input, or output, speed-responsive governor 34 balanced against a spring 40 and oil pressure, acting with the spring, on a piston 39b. Oil pressure is generated by a pump driven from the input shaft through gear 2 and the pressure determined by a relief valve which may be controlled by the engine throttle. The reversing lever 54a may interlock with the rotatable carrier 12 to prevent other than zero output speed in neutral and may also hold the carrier fixed to provide a predetermined speed ratio. The teeth of the segments 10 may be eccentric to provide substantially constant velocity drive between the initial acceleration and final deceleration of the oscillating mechanism. A clutch may be provided between the input shaft 1 and the shaft 8 for direct drive. According to the Provisional Specification, overrun braking may be provided by a ring of vanes fixed to the output shaft co-operating with stationary vanes fixed to the casing, engine coolant flowing between the vanes when the throttle is shut.
Patent GB-1450146-A (GB)
Title: Tent covers
IPC: E04H15/32
Filed: 1973-08-15
Abstract: 1450146 Tent covers J R SMITH 1 Aug 1974 [15 Aug 1973] 38575/73 Heading E1A A tent cover 1 is provided with at least one tunnel 6 secured thereto for receiving a guy rope or wire 7, the tunnel being formed by a tube of fabric secured to the cover and eyelets 5 are provided in the cover immediately adjacent the ends of the tunnel.
Patent GB-1240719-A (GB)
Title: New 11-halogenosteroids
IPC: C07J5/00
Filed: 1968-08-13
Abstract: 1,240,719. 9α,11# - dihalogeno - 6α - fluoro - 16α-methyl steroids. SOBERING A.G. 13 Aug., 1968 [16 Aug., 1967], No. 38617/68. Heading C2U. [Also in Division A5] Novel anti-inflammatory steroids of the formula (wherein R is H or acyl; and X and Y are each a halogen atom, the atomic weight of Y being equal to or greater than that of X) are prepared by halogenation by standard procedures of the corresponding #<SP>9(11)</SP> -steroids. 21-Acylates may be hydrolysed and 21-ols acylated.
Patent GB-863972-A (GB)
Title: Pneumatic power braking systems
IPC: B60T13/40
Filed: 1958-12-01
Abstract: 863,972. Valves. BENDIX CORPORATION. Dec. 1, 1958 [Dec. 30, 1957], No. 38702/58. Class 135. [Also in Group XXXIV] A normally open check-valve C, Fig. 2, for a vacuum tractor-trailer braking system, (Group XXXIV), comprises a closure member 62 positioned in chamber 42 by springs 64, 66, and a tubular member 48 supported by a diaphragm 54 and slidable in a partition 50 which, with diaphragm 54 and member 48 forms an atmospheric chamber. The member 62 is formed with fingers 68 slidably engaging the walls of chamber 42 to permit a predetermined air flow past member 62 without moving it. Normally with the system evacuated, the member 48 is held in non-sealing engagement with seat 60 against the action of spring 58 by atmospheric pressure on diaphragm 54 ; should the tractor and trailer separate and the line leading to port 44 break, then the rush of air forces member 62 against member 48 to isolate ports 46, 44. Should a leak occur in this line, then a predetermined decrease in vacuum in valve C acts on diaphragm 54 with spring 58 to move tubular member 48 against member 62 to isolate ports 44 and 46. In a modified valve C in Fig. 3, a rush of air through port 44<SP>1</SP> moves valve member 62<SP>1</SP> against seat 70 to isolate ports 44<SP>1</SP>, 46<SP>1</SP>; and a predetermined decrease in vacuum causes member 481 to move against member 62<SP>1</SP> which is moved against seat 70. Normally, the members 48<SP>1</SP>, 62<SP>1</SP> are held in abutment by springs 58<SP>1</SP>, 66<SP>1</SP>, the ports 44<SP>1</SP>, 46<SP>1</SP> being connected for evacuation through poppet valve 74. Specification 726,760 is referred to.
Patent GB-999507-A (GB)
Title: Improvements in or relating to guides for tappets and like sliding members
IPC: F01L1/46
Filed: 1961-11-11
Abstract: 999,507. Reciprocating pumps. SIMMS MOTOR UNITS Ltd. Nov. 8, 1961 [Nov. 11, 1960], No. 38845/60. Heading F1A. [Also in Division F2] An insert member is received in a space between the inter-connecting guiding bores for two sliding members to prevent rotation of the sliding members in the bores. In a fuel injectionpump two cylindrical tappets 19, 21 slide in part cylindrical bores 17, 18 in a casing 11. The tappets are actuated by cams 15, 16, acting through roller followers 28 carried on bushes 27 on roller pins 26, to reciprocate pump plungers 32 seating on pads 31 in hollow upper ends of the tappets. The plungers 32 may be rotated through collars 34 to vary pump delivery. The outside of the lower part of each tappet 19, 21 is formed with parallel flat surfaces 25 which engage with a T-shaped insert 42 held in a cruciform aperture 43 formed in the interconnecting wall between the bores 17, 18 to prevent rotation of the tappets. The upper part 46 of the aperture 43 is made narrower than the lower part 44 to prevent the insert being assembled upside-down. Embodiments are described in which an odd number of tappets are used and in such constructions the sides of the insert 42 may be grooved to allow the same length of roller pin 26 to be used in all tappets.
Patent GB-1022052-A (GB)
Title: Improvements in or relating to shaped cellular polypropylene article and method of making same
IPC: C08J9/16
Filed: 1963-10-02
Abstract: Shaped articles comprising a cross-linked stereoregular, polypropylene foam having a uniform cell structure in which at least 50% of the cells are closed are prepared by heating a mixture of stereoregular polypropylene, a blowing agent, and an azido cross-linking agent, to at least the softening temperature of the mixture and sufficient to release the gas from the blowing agent and to effect cross-linking of the polypropylene and forming the foam into a shaped article.  Chemical and solvent blowing agents may be used, azobisformamide being the blowing agent exemplified.  Azido cross-linking agents exemplified are 1,10-decane-bis(sulfonazide), tetramethylene bis(azidoformate) and a chloroaliphatic poly(sulfonazide).  The mixture may be extruded or moulded to form foamed sheets, hollow shapes such as bottles and may be coated on to wire and cables.  An elastomer may also be incorporated in the mixture. Suitable elastomers are ethylene propylene copolymers, ethylene-propylene-diene terpolymers and polyisobutylene.
Patent GB-971580-A (GB)
Title: Improved coated abrasive articles
IPC: B24D11/00
Filed: 1962-10-16
Abstract: <PICT:0971580/C4-C5/1> An abrasive sheet comprises a backing sheet of polyethyleneterephthalate, polypropylene or polyethylene, one side of which has abrasive grains anchored thereto by a coating of flexible polyurethane adhesive which itself is coated with an epoxy novolac resin having at least three reactive epoxy groups. The abrasive may be silicon carbide, aluminium oxide, garnet, flint, emery or pumice. The other side of backing sheet may have a coating of an adhesive e.g. a polyester ink, and a mild abrasive e.g. walnut shell flour, diatomaceous earth or ink pigments (see Fig. 2).
Patent GB-1014751-A (GB)
Title: Tank temperature distribution for dry-type transformers
Inventor: RITCHIE DAVID MALCOLM
IPC: H01F27/08
Filed: 1960-11-15
Abstract: 1,014,751. Transformers. BRUCE PEBBLES & CO. Ltd. Jan. 31, 1962 [Nov. 15, 1960], No. 39258/60. Heading H1T. A heat insulating pad 14 is fixed by sheet steel plates 15 to the inner surface of a plain tank 13 containing a dry type 3-phase transformer 11, 12 to reduce the temperature of the outer surface of the tank above the core and winding assembly. The latter of Class C or Class H type insulation, can be run at a higher temperature when such a pad is in position. The tank may be filled with air or nitrogen.
Patent GB-1198804-A (GB)
Title: Triggering Device Responsive to Ambient Physical Change
Inventor: KENZIE ERNEST DENNIS
IPC: H01H35/24
Filed: 1966-09-02
Abstract: 1,198,804. Fluid actuation of switches. IRVING AIR CHUTE OF GREAT BRITAIN Ltd. 27 July, 1967 [2 Sept., 1966], No. 39417/66. Heading H1N. [Also in Division G1] A switch to be actuated at a first value of atmospheric pressure only after passing through said value and returning thereto after attaining a second value (for example, for releasing a parachute from a rocket on re-entry into the earth's atmosphere) comprises a contact-carrying arm 24 pivoted at 26 and urged by a spring 30 towards a stepped collar 20 but held away therefrom by a latching blade 34. Adjustably mounted capsule(s) (6, Fig. 2, not shown) move collar 20 such that at a very low ambient pressure it impinges on a screw (38) adjustably secured to blade 34 to lift the latter, thereby releasing arm 24 into engagement with collar 20. As the ambient pressure increases the capsules (6) retract collar 20 until arm 24 drops off a shoulder thereon and a blade contact 42 engages fixed contact 44. At a higher pressure still the arm 24 drops off a further shoulder on collar 20 and contact 42 engages a second fixed contact 46. Instead of the aneroid capsule (6) a bimetallic or other temperature-responsive element may be used, or a humidity-responsive element.
Patent GB-1193853-A (GB)
Title: Improvements in or relating to Electrolytic Electrophotography
IPC: G03G17/02
Filed: 1967-08-29
Abstract: 1,193,853. Electrolytic electro-photography. FUJI SHASHIN FILM K.K. Aug.29, 1967 [Aug. 27, 1966], No. 39543/67. Heading G2H. In an electro-photographic process in which a layer of a photo-conductive material in a binder on a conductive base is imagewise exposed to form a conductivity image which is developed electrolytically in an aqueous solution, e.g. of an ionic dye or metal salt, a film of water insoluble organic liquid is maintained on the photo-conductive surface during development. The film is not more than 5 thick and is applied during or after exposure. The developed image may be transferred to a layer of gelatine on paper, or fixed by hardening the liquid, e.g. by drying (preferably using heat). Suitable liquids are vegetable, mineral and fish oils, chlorinated paraffin, dibutyl sebacate and phosphate, and epozy, isobutylene, silicone, polyamide and unsaturated liquid resins, optionally containing a hardening catalyst to to accelerate fixing. After image transfer, the liquid may be removed with solvent so that the photo-conductive member may be reused.
Patent GB-892610-A (GB)
Title: Coin-controlled mechanism
IPC: G07F5/02
Filed: 1959-11-21
Abstract: 892,610. Coin-freed apparatus. GREENWALD, H., WOLFF, L., SILBERGLAIT, H., LAZARUS, H., HAMILTON, G. H., KORN, B., and BERNSTEIN, I. L., [trading as INTERNATIONAL ASSOCIATES.]. Nov. 21, 1959, No. 39573/59. Class 27. Coin-freeing mechanism, particularly for releasing the timer of an automatic washing machine or drier, is readily adaptable for operation by one, two or more coins of the same denomination by the provision of a cover 60 which is angularly adjustable after the release of a set screw 45 covered by a lock cylinder 52 so that a coin slot 65 is positioned appropriately behind one or other of several radial fingers 55a, 55b, 55c on a coin-driven member 50. A shaft 25 between the timer motor 23 and the driven member 50 operates cam-controlled switches 24 in sequence and a coin in a carrier 75 on a plate 70 couples the driven member to an external operating knob 64. For one-coin operation, the slot is positioned so that an inserted coin lies behind the rearmost finger 55c and a single movement of the knob to bring the coin over the discharge shoot 53 will move the shaft 25 to the start position of the timer. For two-coin operation, the cover is adjusted so that the slot causes an inserted coin to engage behind the intermediate finger 55b and when the coin is released to the discharge shoot the shaft 25 is not in the start position but a second inserted coin can engage finger 55c to cause movement to the start position. Similarly, for three-coin operation, the fingers 55a and 55b are engaged by two successive coins before the third coin can engage the finger 55c. Fraud preventing.-A ratchet strip engages the coins to prevent reverse rotation of the knob 64 or oscillation of the knob so that a single coin can be successively engaged with the fingers. The coin carrier 75 is in the form of a channel with one flange 77 bent up to form a radial arm 81 and the other formed with a bevelled nose 82 which, if a washer 87 is inserted, will enter the hole in the washer and raise it so that it is dragged over the fingers without moving them. An arcuate depression 401 causes a correct coin to centre itself clear of two pins 402 on each side of the slot but, if a razor blade is inserted, it will be held up by the pins and further movement of the knob 64 will be prevented.
Patent GB-1505967-A (GB)
Title: Colour television cameras
IPC: H04N9/07
Filed: 1976-09-23
Abstract: The object is to improve the colour television camera, so that moiré interferences are avoided, and the requirements for deflection linearity are low. Strip filters are arranged in front of the receiving layer of the picture receiving tube. A first filter is provided with strips to pass white light and light of a first colour range. A second filter is provided with strips to pass white light and light of a second colour range. The strip filters are inclined at an angle of 5 to 15 DEG  and 40 to 30 DEG  respectively to the scanning direction. The result is various carrier frequencies which can be separated from each other and are modulated by the associated colour signal. One of the colour carriers is filtered out and provides a 1-colour signal. A light density signal is derived from the colour-coded output signal of the receiving tube. By delaying the output signal by the time interval corresponding to the width of a colour strip, and forming the difference between the undelayed and delayed signals, a 2-colour signal is derived. By forming the sum of the undelayed and delayed signals, a 3-colour signal is derived. Three primary colour signals are derived from the 1-, 2- and 3- colour signals by matrixing. <IMAGE>
Patent GB-1325484-A (GB)
Title: Rotary rake-head for hay-making machines
IPC: A01D78/12
Filed: 1970-08-20
Abstract: 1325484 Rake-head for haymaking machines MASCHINEN FABRIK FAHR AG 20 Aug 1970 [30 Aug 1969] 40067/70 Heading A1F A rotary rake-head for haymaking machines comprises means by which the prongs are moved from their substantially horizontal transport position to their operating position by or as a consequence of centrifugal force. The rake-head comprises a hub 3 rotatably mounted on an axle 2 to which a guide member 10 is rigidly connected. Spokes 11 are provided with resilient prongs 19 secured to plates 18 which in turn are welded to sleeves 17 rotatably mounted on the spokes 11. The rotation of the spokes, and consequently also of the sleeves 17 and prongs 19, is achieved by an inclined disc 15 mounted on the axle 2 and provided with a cam-plate 16. The spokes 11 are guided in the cam-plate 16 by means of a shoulder 12 which acts as a crank 4 in which a bolt 13 provided with rollers 14 is inserted, so that the prongs 19, rigidly connected to the spokes, rise from the ground over a certain portion of their path. The sleeves 17 are connected to the guide member 10 by means of springs 24 joining the eyelets 25, 26. As the rake-head rotates, the sleeve 17 is brought to the operative position by centrifugal force, guided by mounting tracks 27, and secured by variously shaped locking devices, in this case by the bolt 21 engaging in the recess 22. When the power is switched off, the sleeve 17 is pulled inwards as far as the stop 23 by the spring 24, and the prongs assume their transport position by means of a counterweight 20 affixed to the sleeve 17. In a further embodiment the inward end of the sleeve is curved and moves over a similarly curved part of a shoulder of the guide member when the rake-head is not in motion thus bring- ing the prongs to their transport position. In another embodiment, Fig. 7, the spoke 72 is tubular, containing a bolt 76 mounted on a guide member 75 affixed to a spring 78, and the bolt 76 engages in a recess 79 in the sleeve 73 when the rake-head is in motion. A counterweight 80 brings the prongs into their transport position, as before.
Patent GB-839500-A (GB)
Title: Improvements in or relating to solid state masers
IPC: H01S1/02
Filed: 1957-12-24
Abstract: 839,500. Masers. WESTERN ELECTRIC CO. Inc. Dec. 24, 1957 [Dec. 31, 1956], No. 40100/57. Class 40 (9). In a three-state maser, a pumping wave is transmitted in a waveguide or tuned cavity to produce a so-called " negative temperature " in a crystalline paramagnetic salt such as methyl fluosilicate nickel fluosilicate, gadolinium ethyl sulphate or this sulphate doped with caesium ethyl sulphate. A signal wave is also transmitted in the guide and the signal wave or both the signal and pumping waves may be transmitted with low group velocities. The paramagnetic salt may be subjected to a steady magnetic field but no specific arrangement using such a field is described. Such a maser is operated at a temperature near 0‹ K. Normal group velocities, Fig. 1.-The pumping wave is maintained in a resonant rectangular cavity 11 forming along with the feed connection 14 an H-plane T. The signal wave is applied to a strip line tuned to the signal frequency, the line being formed of a strip conductor 12 and the broad sides of the cavity. The conductor 12 rests on an insulating block 13 and carries a slab 17 of nickel fluosilicate. A circulator connected to a coaxial line 15 feeds the signal to the strip line and accepts the amplified signals returned. Alternatively the signals may be fed to one end of the strip and the amplified signals collected at the other. The magnetic components of the pumping and signal waves are parallel. If gadolinium ethyl sulphate is used, the magnetic components of the two waves are arranged at right-angles by making the strip 12 parallel to the shorter sides. Slow signal wave, Fig. 3.-The pumping wave is continuously transmitted through a waveguide 21 and the signal wave is transmitted with a slow group velocity over a distributed circuit comprising independent resonant strip conductors 22 each carrying a portion 25 of paramagnetic salt. The signal wave is fed to one end of the distributed circuit and is extracted from the other. Slow signal and pumping waves. Fig. 4.-The signal and pumping waves are transmitted with slow group velocities over separate distributed circuits 33, 32, on opposite sides of a slab 31 of paramagnetic salt. Each circuit comprises strip conductors each of length approximately half the wavelength of the wave to be propagated. Ground plates 38, 39 minimize radiation.
Patent GB-1194104-A (GB)
Title: Pump Type Dispensers
IPC: B05B11/00
Filed: 1968-08-22
Abstract: 1,194,104. Reciprocating pumps. AEROSOL INVENTIONS & DEVELOPMENT S.A. Aug.22, 1968 [Oct. 26, 1967], No.40103/68. Heading F1A. In a pump-type dispenser assembly comprising a screw cap 4, a pump assembly and an overcap 14, the caps have co-operable splines, by means of which they engage and allow the overcap to act as a socket wrench for screwing the screw cap into the neck of a container. The overcap, which is fitted before screwing the assembly into the container to avoid inadvertant operation of the pump, has splines 18 formed internally on a rim 17, and splines 19 are formed externally on cap 4; the splines are tapered, and one set is thinner than the other to facilitate assembly Figs. 4, 5 (not shown). The assembly may be fitted mechanically to the container by a driving head (22) having a non-slip liner (24) Fig. 1 (not shown). In another embodiment Fig. 6(not shown) the screw cap (4) is connected by frangible webs (26) to an actuater button (27) attached to the pump plunger (10) forming a tamper-proof feature. Similar tamper-proof features are described with reference to Figs 7 and 8 (not shown).