baber/WOPTO huggingface dataset:
Patent GB-314679-A (GB)
Title: Improvements in or relating to the manufacture of loom pickers
IPC: D03D49/36
Filed: 1928-07-06
Abstract: 314,679. Fielden, J., and Fielden, T. July 6, 1928. Pickers.-Pieces of hide which have been soaked in oil are softened, when it is desired to form them into pickers, by soaking in water or otherwise.
Patent GB-420694-A (GB)
Title: Improvements in and relating to the refining and casting of non-ferrous metals and alloys
IPC: B22D23/00
Filed: 1933-07-11
Abstract: 420,694. Casting-machines. TULLIS, D. R., Somerfield, Manor Drive, Sutton Coldfield, and OAKLEY, P., The Tower, Rainhill, Liverpool. July 11, 1933, No. 19603. [Class 83 (i)] [See also Group II] Casting processes.-Non-ferrous metals and alloys, for example aluminium, zinc, copper, and their alloys such as aluminium-silicon alloys, aluminium-copper alloys, aluminiumzinc alloys, and copper-zinc alloys, are refined by blowing or bubbling through the molten metal a gaseous halogen, preferably chlorine, or a volatile halide or oxyhalide, or a mixture of these gases or vapours. The metal is cast in a mould in which a non-oxidizing atmosphere is maintained under pressure. The volatile halide may be, for example, boron trichloride, vanadium tetrachloride, or vanadium oxytrichloride. The process is preferably carried out in a ladle 1 which is fitted with a gas-tight lid 7, and is connected to a mould 2 by a pipe 3, the ladle and the mould being mounted on opposite arms of a frame 4 pivoted at 5 on a supporting structure 6, a handle 8 being provided so that after the refining process the frame can be tilted to transfer the metal from the ladle to the mould. The ladle is provided with tuyeres for the introduction of the halogen or halide under pressure. The air is driven out by the halogen &c. through a weighted non-return valve or through a restricted opening in the ladle or mould leaving.
Patent GB-1150440-A (GB)
Title: Improvements relating to Dispenser Devices
IPC: C12M1/20
Filed: 1966-05-04
Abstract: 1,150,440. Dispersing reagent discs; feeding sheets. DIFCO LABORATORIES Inc. 4 May, 1966 [4 May, 1965], No. 19658/66. Headings B8R and B8S. Reagent discs 26 are dispensed into a petri dish 38 from a group of magazines 20, by the action of a lever 28 carried by each magazine when it is engaged by an actuating plate 30 connected to an operating knob 34. Each depression of the latter thus results in the lowermost discs of all the magazines 20 being dispensed simultaneously. The magazines may be withdrawn for replacement by rotating the knob 34 (Fig. 5, not shown). The discs 26 are spring loaded in the magazine by a plunger (130) (Fig. 11, not shown). The dish 38 is centred relative to the magazines by the action of ribs 53.
Patent GB-1433896-A (GB)
Title: Polyureas and preparation thereof
IPC: C08G18/32
Filed: 1973-04-25
Abstract: 1433896 Polyureas W R GRACE & CO 25 April 1973 [12 May 1972] 19727/73 Heading C3R Aqueous solutions or dispersions of polyureas are prepared by preparing a non-cross-linked polymer by reacting a first component comprising a polyisocyanate and/or polyisothiocyanate and a second component comprising a polyamine having 2-23 amino groups and a non - protonic carbonyl containing solvent selected from acetone, methyl ethyl ketone, cyclohexanone, acetaldehyde, propionaldehyde, butyraldehyde and isobutyraldehyde, the molar ratio of NCO groups in the first component to amino groups in the second component being from 1 : 1 to 1 : 20, and the polyamine and solvent having first been mixed for from 2 minutes to 24 hours at - 5‹ to 150‹ C., adding water and epichlorohydrin to the non-crosslinked polymer and removing the solvent. The first and second components are generally stirred together at 0-100‹ C. for 2 minutes- 8 hours to effect polymerization to the non- cross-linked polymer. In examples 1-7 diethylene-triamine is reacted with acetone and then either with a diisocyanate prepared by reacting polyoxyethylene glycol (M.Wt. 1000) with tolylene diisocyanate, or with a polymeric triisocyanate prepared by reacting tolylene diisocyanate with a triol of M.Wt. 3300 and a 2 : 1 ratio of ethylene oxide/propylene oxide units. The acetone is then replaced by water and epichlorohydrin is added. Upon drying the resultant aqueous slurries tough elastomeric films are formed.
Patent GB-1001747-A (GB)
Title: Improvements in and relating to information pulse transmission systems
IPC: H04L7/06
Filed: 1964-05-12
Abstract: 1,001,747. Telegraphy. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 12, 1964 [May 15, 1963], No. 19741/64. Heading H4P. In a data transmission system a synchronizing signal sent with the data is extracted at the receiver by feeding the received signal to a circuit having a quadratic output response and passing the resultant signal to a tuned filter. At the transmitter data pulses, Fig. 3a, are combined with the sync. signal c, and filtered. The resultant waveform f is transmitted. At the receiver, Fig. 2, the demodulated combined signal passes to quadratic response unit 13 which feeds filter 14, whose output is as g and has a frequency twice that of the sync. signal. After a 90 degrees phase shift and limiting, the signal h is inverted at 19, differentiated at 17, 20, and rectified at 18, 21, the outputs being j and k respectively. Waveform k is fed to toggle 22 whose output m passes to tuned filter 23. The filter output n is the inverse of the sync. component in the received signal, so by adding n to the signal the original data is derived, which is retimed at 10 in association with clock signal j. Should toggle 22 start in the wrong phase, signal n will be in the wrong phase, and will result in the output of 9 being of excessive value. To correct for this the arrangement of either Fig. 5 (not shown) or Fig. 6 (not shown) may be used. In the first of these there are two paths, one containing the received signal and the signal n and the other the received signal and the inverse of n. The amplitudes of the signals in the paths are compared and the one of lesser amplitude fed to the retiming unit. In the second arrangement, detection of an excessive amplitude at the output of 9, Fig. 2, causes a pulse from j to be inserted in k so that toggle 22 reverses its phase.
Patent GB-1037824-A (GB)
Title: Improvements in shaft couplings
IPC: F16D3/04
Filed: 1963-05-17
Abstract: 1,037,824. Universal joints. COMPAGNIE FRANCAISE THOMSON-HOUSTON. May 17, 1963 [May 17, 1962], No. 19787/63. Heading F2U. A shaft coupling allowing misalignment of shafts 1b, 1d comprises coupling members 2d having taper bores 7b force fitted on the shafts, and having projections 10d, 11d, 22 engaging slots formed in the periphery of a central ring 3. Since the projections of both coupling members engage the ring in the same radial plane the ring is not subject to torsional stress. In order to limit the maximum torque transmittable by the coupling, the coupling member on the shaft 1b is formed in two parts, a part 19 carrying the projections 22 and a part 25 which is fitted on the shaft 1b and which is connected to the part 19 by shear pins 20.
Patent GB-878465-A (GB)
Title: Neutron-absorbing material
Inventor: BLANCO ANGEL ALBERTO
IPC: G21F1/02
Filed: 1958-06-20
Abstract: 878,465. Neutron shields. IMPERIAL CHEMICAL INDUSTRIES Ltd. July 20, 1959 [June 20, 1958; Nov. 21, 1958], Nos. 19795/58 and 37508/58. Class 39(4). A neutron shield comprises discrete chips of a solid material containing at least 3% by weight of hydrogen, having embedded therein particles of boron carbide or other neutron absorbing material, the chips being disposed in a matrix of a material containing at least 3 % by weight of hydrogen. The solid chips may be composed of polyethylene or an epoxy resin, and the matrix, material may be water, mineral oil, flexible gelled silicone, paraffin wax, bitumen, or natural or artificial rubber. The shielding material may be reinforced by fibrous or woven glass, nylon, polyethylene terephthalate, or cellulose, and may also contain fillers of powdered carbon, wood dust, aluminium powder, polyvinyl chloride, or finely divided silica. Lead or a lead compound may be included to absorb gamma radiation. Sheets of the shielding material may be clad on one or both sides with aluminium or with a polyester or phenolic resin reinforced with asbestos or glass fibres. The material is useful for shielding nuclear reactors in ships or aircraft. The second Provisional Specification refers to the use of boric acid, cadmium or hafnium powder as neutron absorbing material in place of boron carbide, and also to a shield comprising a mixture of boron carbide, polyethylene, and a polyester or epoxy resin.
Patent GB-261066-A (GB)
Title: Improvements in electrical contacts, specially applicable for fuse contacts
IPC: H01R13/42
Filed: 1925-08-07
Abstract: 261,066. Cox, C. W., Shawfield, C. E. C., and Bartlett, E. E. Aug. 7, 1925. Plug couplings.-A plug and socket coup. ling suitable for fuses comprises accurately cylindrical plug and socket elements, the plug being of slightly greater diameter than the socket, and both elements being slit so that both are deformed into conical shape when engaged. The plug A is attached to a fuse carrier C by means of a screw a, the fuse wire F being secured by nuts a<3>, a<4>. The socket B, Fig. 6, is secured to the base D by the screw c<6> of a terminal c<4>, or by a nut surrounding the socket and engaging a shoulder at the bottom of the recess in the base, a spring ,washer being interposed. In this case the head of the terminal screw may be located inside the socket. According to the Provisional Specification the plug may be spread by a conical member at the base of the socket that enters a corresponding recess in the end of the plug.
Patent GB-596902-A (GB)
Title: Improvements in or relating to rotary pumps and rotary fluid-pressure motors
IPC: F01C1/34
Filed: 1945-08-03
Abstract: 596,902. Rotary engines and pumps. HILL, H. R. Aug. 3, 1945, Nos. 20061/45 and 7506/46. [Class 110 (ii)] The motor or pump has sliding vanes 12, the ends of which engage annular parts 14, 15 of a rotor 16 which can be moved radially to vary the eccentricity of the rotor relatively to a drum 11 which is slotted to support the vanes. The rotor 16 is supported on a bearing 18 and the drum 11, which is secured to a shaft 5, on a bearing 8. Segmental inlet and outlet ports 26, 27 in the drum disc 7 communicate periodically with the outer and inner crescentshaped working chambers. A rotor 24 has an annular inlet port 28 and outlet ports 29, 30 which are eccentric to but co-operate with ports 26, 27 to allow fluid t( pass into and out from the crescent-shaped chambers as the two rotors rotate, the relative gyratory movements of the parts 7, 24 causing the ports 26, 27 to move across the lands between the valve ports 26, 29 and 30 to effect the required valve action. The port 28 leads to passages 34, 38, and the ports 29, 30, lead to a conduit 10 by way of passages 31 and 32. The rotor 16 is moved downwards, Fig. 1, by means of a hand wheel 23, parts 19 sliding between guides 20. The direction of flow of the fluid may be reversed by causing the eccentricity of the two rotors to lie on the opposite side of a horizontal axis passing through the centre of the shaft 5. A resilient thrust disc 21, supported by a block 3, is arranged to apply axial pressure to the bearing block 19 so as to press the cylinder unit endwise against the drum 11 and disc 7. Two machines, one an engine and one a pump, may be combined in a fluid-transmission system. The first Provisional Specification refers to Specification 580,890.
Patent GB-579835-A (GB)
Title: An improved manufacture of detergent compositions
IPC: C11D9/14
Filed: 1943-12-01
Abstract: 579,835. Detergents. PENNSYLVANIA SALT MANUFACTURING CO. Dec. 1, 1943, No. 20064. Convention date, Dec. 4, 1942. [Class 91] A detergent composition suitable for laundry purposes contains an alkaline silicate of sodium, an absorptive clay having colloidal properties, an alkali phosphate and a fatty-acid-containing oil, mixed in such a manner that chemical reactions between the alkaline compounds and the clay and the oil are substantially prevented. Reaction may be prevented by absorbing the oil in the clay before adding the alkaline ingredients or by cooling during mixing, and it is desirable to dry the clay before mixing. The clay may be bentonite and the oil may be tall oil or red oil, while suitable silicates of sodium are the orthosilicate, sesquisilicate and metasilicate, and suitable phosphates are the sodium orthophosphates, pyrophosphates and metaphosphate. In the examples the ingredients employed are bentonite, tall oil with or without red oil, sodium ortho-, meta- or sesqui-silicate and trisodium orthophosphate or tetrasodium pyrophosphate. In each of the examples the oil is absorbed in the clay before adding the alkaline ingredients and after all the ingredients have been added the mixture is cooled. The Specification as open to inspection under Sect. 91 describes the use of fatty acid ester oils such as palm oil in place of the fattyacid-containing oils. This subject-matter does not appear in the Specification as accepted.
Patent GB-221328-A (GB)
Title: Improvements in or relating to traffic-signalling systems
IPC: G08G1/02
Filed: 1923-08-07
Abstract: 221,328. Austin, W. Aug. 7, 1923. Switches, actuating; retractive switches; momentary - contact switches. - Tumbler switches for actuating road crossing signals are operated by treads located in the road surface upon the passage of a vehicle approaching the crossing. Each road is provided with three pairs of tread members 17, 18 at a point distant from the crossing. The tread members are pivoted at 23 and resistance to depression by a passing vehicle is offered by springs 250. Pivoted to each tread member 17 is a rod 37 normally engaging a stud 36 on a bush 34 which is rotatably mounted on a spindle 20 and carries a spring pressed pawl 32. The pawl 32 engages a ratchet 31 provided on one of two rotatably mounted and interconnected cam plates 30. These plates operate, when rotated by the pawl 32 upon depression of the tread, one of the four delay acting tumbler switches 26. Each tread 18. has a pivoted rod 40 connected to a lever 42 which slidably engages the rod 37. When a vehicle is proceeding away from the crossing, the tread 18 is operated before the tread 17 and the rod 37 is swung away from the step 36 to prevent operation of the switches. When a vehicle, approaching the crossing, operates the tread 17, the ratchet 31 is moved through two steps by the action of the front and rear wheels respectively and a cam 54 on one of the plates 30 displaces longitudinally the spindle of one of the switches in bearings in the plates 27, 28 to rotate it and close the circuits of the corresponding signal elements at the crossing. A cam 55 is so positioned on the other plate 30 that upon a subsequent operation of the tread 17, the spindle of the previously operated switch is returned and a second operation of the switch accomplished. Switch construction, Figs. 6 and 7. Each tumbler switch 26 comprises a tubular casing carrying in each end a spring controlled piston 45, which carries interconnected contacts 47 adapted to co-operate with contacts 48, 480 in the casing. The contacts 480 at the ends of the casing are connected by a bridging piece 481, the circuit being established to the contacts 48, 480 by plungers 49, 50 mounted on the plate 28. The casing is supported on two spindles one of which is carried in a bearing in the plate 27 and the other has a screw thread 52 which engages a threaded bearing 53 in the plate 28. When one or other of the cams 54, 55 displaces the'spindle, the switch is rotated through 180‹ and fluid in the space between the pistons flows slowly through the construction 44 and presses the lower piston downwardly and causes the contacts 47 to engage the contacts 48, 480 for a predetermined period of time during which the signals at the crossing are actuated.
Patent GB-1435423-A (GB)
Title: Devices for testing anti-locking control systems
IPC: B60T8/88
Filed: 1974-05-08
Abstract: 1435423 Testing antiskid systems ROBERT BOSCH GmbH 8 May 1974 [9 May 1973] 20204/74 Heading F2F A device for testing an antiskid braking system having an alternating current tachogenerator 30, an A.C./D.C. voltage converter 31 and an acceleration threshold value circuit 33 by means of which a pressure regulating valve 14 is actuatable by way of a switch has a programme control unit comprising a counting unit controlled by two monostable trigger circuits whereby an automatic fixed testing programme can be produced by means of which a vehicle speed can be simulated in that a capacitor 118 is chargeable and gradually dischargeable in a speed simulation circuit 119 in dependence upon the testing programme by way of logic gates. A master cylinder 10 supplies pressure fluid to a wheel cylinder 16 via a pressure regulating valve 14 actuated by a solenoid 19 under the control of a system which includes acceleration threshold circuit 33, OR-gate 37, monostable trigger circuit 41 and transistor switch 38. A pressure monitor 24 actuates a switch 25 as soon as brake pressure exceeds a fixed minimum value. The circuit for testing, Fig. 2, which may be in the form of a portable test unit or be built in to the brake control system includes monostable circuits 112, 114 and a four stage counting unit 115 and the acceleration threshold value circuit 33, the pressure regulating valve 14 and vehicle speed simulating stage 34 are checked in turn, a light 149 being switched on at the beginning of the testing programme and its extinction indicating that the antiskid control system and the testing device are in working order. When the highest counting stage is reached the testing device is disconnected.
Patent GB-419468-A (GB)
Title: Improvements in garments
IPC: A41D1/04
Filed: 1933-07-18
Abstract: 419,468. Wearing-apparel. HALLAM, E. A., Iveshead Road, and BRAUND, Ltd., G., Factory Street, both in Shepshed, Leicestershire. July 18, 1933, No. 20257. [Class 141.] A pullover or the like has the front part of woven material and another panel-like part of more elastic material. As shown, the front part 10 is of woven material such as to match the other part of a suit, and the rear is of knitted material. A band 18 of more elastic knitted fabric, such as ribbed fabric, is used at the waist. The sleeve openings 12, and if desired, the neck opening may be edged with knitted fabric.
Patent GB-1086774-A (GB)
Title: Thermally stable polymers
IPC: C08G18/00
Filed: 1965-05-13
Abstract: A thermally stable polyacetal is prepared by polymerizing trioxane at not above 150 DEG  C. in the presence of (i) 0.1 to 10% of an organic isocyanate, (ii) not more than 20% of a copolymerizable cyclic compound or a compound containing a vinyl group and (iii) a Lewis acid catalyst or ionizing radiation. Specified organic isocyanates are 2,4-toluene-diisocyanate, 2,6-toluene-diisocyanate 2,4-toluene-diisocyanate dimer, naphthylene - 1,5 - diisocyanate, diphenylonethane - 4,4 - diisocyanate and triphenylmethane - 4,4,4 - triisocyanate.  The compound (ii) may be a cyclic oxide, a cyclic formal, a lactone, a cyclic ester of a carboxylic acid, or other heterocyclic compound.  Specified compounds (ii) are 1,3-dioxolane, 1,3-dioxane, ethylene oxide, propylene oxide, epichlorohydrin methacrolein dimer and styrene.  Specified catalysts are boron trifluoride, or its complexes. The polymerization may take place with the trioxane in the solid phase or in molten form, but may also take place in solution in such inert solvents as cyclohexane, c -hexane, benzene and nitrobenzene.  The polymer may be after-treated with acetic anhydride.
Patent GB-1504575-A (GB)
Title: Horizontal vacuum belt filter machine
IPC: B01D33/00
Filed: 1975-05-14
Abstract: 1504575 Vacuum band filter STRAIGHT LINE FILTERS INC 14 May 1975 [20 Dec 1974] 20332/75 Heading B1D A horizontal vacuum belt filter machine comprises a plurality of belt strips 20, 22, 24, supporting a mesh filter band 28 e.g. of metal, plastic on cloth, the endless strips being each supported on a separate drum e.g. 32 at the entry end. Adjacent belt strips have overlapping joints at their edges which sealingly engage each other assisted by suction from a suction box. Liquid is withdrawn between ribs 50 through openings 46. Dewatered solids are discharged at the end adjacent motor 58. The filter material 28 is carried by vee belts on pulleys e.g. 74. The separate drums e.g. 32 are individually adjustable to separately tension belt strips 20, 22 and 24. Filter cake removal may be assisted by an air blast and the lower belt run may be washed. Annular grooves on discharge end drum cooperate with an inwardly extending longitudinal ribs of each belt strip to ensure alignment of strips.
Patent GB-577470-A (GB)
Title: Improvements in or relating to valves
IPC: G05D16/10
Filed: 1943-12-07
Abstract: 577,470. Valves. STEVENS, A. H. (Gibson Electric Refrigerator Corporation). Dec. 7, 1943, No. 20440. [Class 135] A valve suitable for use in a refrigerating system comprises a piston member 21 that is a tight fit in a cylinder 13 placed in a socket 12 and held in position by an end cap 14, jointing material 16 being placed between the parts. The valve controls several fluid paths and radial ports are connected by longitudinal ports in the cylinder to connections in the cap 14. A rod 24 attached to the bellows 22 is connected to the piston valve 21 by a pin 36 that is a loose fit to allow for misalignment between the' parts. The upper part of the bellows is loaded by the pressure of the refrigerant and the lower by a pressure responsive to a temperature. Arms 27, 28 are pivoted to the rod 24 and separated by a spring 35 and carry rollers 31, 32. Wedge-shaped elements 33, 34 are secured to the casing and co-operate with the rollers 31, 32 so that under the action of the bellows, the valve. snaps to one of two positions.
Patent GB-255249-A (GB)
Title: Apparatus for reducing the fire risk on vehicles carrying liquid fuel
IPC: B60P3/22
Filed: 1925-08-14
Abstract: 255,249. Phillips. F. G. Aug. 14, 1925. Fires, preventing in connection with receptacles for inflammable liquids; inflammable fluids, cut ting off.-The risk of fire in the event of a vehicle using liquid fuel upsetting or turning to a dangerous position is avoided by arranging an automatically closing valve in the supply pipe from the tank to the carburettor. As shown in Fig. 1, the supply pipe b from a tank a is provided with an upstanding tube e terminating in a valve seat p. A sleeve h ball-mounted on the tube e carries a raceway l for a ball o and also a pivotallymounted, weighted arm m. In use, if the vehicle tilts beyond a predetermined amount, the ball o will run along the raceway l and close the valve seat p. The raceway may have corrugations l<1> to delay the travel of the ball. When the vehicle returns to horizontal position a nose m<1> on the arm m pushes the ball o off its seat. In a modification, Fig. 3, designed to operate also if the vehicle becomes inverted, the device is arranged in a filter chamber q in the supply pipe b. In this construction, a sliding carriage s serves to retain the ball o in the raceway l and has a hook s<2> to pull the ball off the valve seat when the vehicle is in normal position. In another modification, the carriage s is provided with a catch member designed to prevent closing of the valve seat by ordinary heavy jolting of the vehicle.