baber/WOPTO huggingface dataset:
Patent GB-1091001-A (GB)
Title: Improvements in electrical switches with permanent-magnet systems
IPC: H01H5/02
Filed: 1965-02-11
Abstract: 1,091,001. Press-button retractive switches. ROBERT BOSCH G.m.b.H. Feb. 11, 1965 [Feb. 13, 1964], No. 5908/65. Heading H2B. Bridging contacts 42, 43 and 44, 45 are moved with snap action by a button 53 acting via a spring 56 on a magnetic rod member 36 which has an annular flange 37 acting as armature to an annular permanent magnet 33 with disc polepieces 34, 35. Non-magnetic material fills grooves on each side of flange 37. A spring 54 is strong enough to overcome the magnetic attraction between flange 37 and disc 35 and restores the switch when pressure on button 53 is released. Fixed contacts 48 ... 51 are embedded in insulating material 52 and extend therefrom to act as terminal plug pins. Two other arrangements of the magnetic system are described (Fig. 2, and Figs. 4 to 6, not shown) in each of which a moving armature completes a magnetic circuit in each of its end positions. In the modification of Fig. 3 (not shown) an annular magnet, radially polarized, is secured to a movable switching rod and cooperates with fixed iron discs (20, 21) in its respective end positions.
Patent GB-729363-A (GB)
Title: Improvements in and relating to electric glow-discharge apparatus shaped and arranged as signs or indicators
Inventor: BUSH BERNARD THOMAS
IPC: G09F13/26
Filed: 1953-03-04
Abstract: 729,363. Illuminated signs. BUSH SIGNS, Ltd. Jan. 21, 1954 [March 4, 1953], No. 6016/53. Class 3 (2). An electric glow-discharge sign has the electrode 3 and the upper joints 11 between the letters, or parts of the sign, housed within a box-like or channelled supporting member 5 so as to be concealed from view. The lower joints 12 between the letters may be housed in a channel member 13. The side 7 of the member 5 has slots 8 cut away to receive the joints of the face tubes 9 and the double back tubes 10 and is closed by a cover 6 (see Fig. 3, not shown). A high tension transformer may be housed in the case 1 and the cables 2 from it to the electrodes 3 led through the tubes 4. Gases other than or in addition to neon may be used.. The members may be made of plastic material, metal or other suitable material.
Patent GB-496747-A (GB)
Title: Improvement in radio-frequency amplifier
IPC: B64C35/00
Filed: 1937-03-02
Abstract: 496,747. Cathode - ray tubes and circuits therefor. FARNSWORTH TELEVISION, Inc. March 2, 1937, No. 6183. Void. Convention date, March 9, 1936. [Classes 39 (i) and 40 (v)] In a cathode-ray tube for amplifying radiofrequency currents the velocity of the electrons is modulated in accordance with the signal, and the path travelled by the electrons is large compared with the time travelled by an electron during one cycle of the signal so that the electron density throughout the path varies in accordance with the signal. The cathode of the gun 5 is connected to a heating battery 19 through chokes 20, and the tuned circuit 26 is connected across the anode and cathode of the gun so that the velocity of the electrons is modulated. A tuned output circuit 29 is provided, and the output electrode 10 is connected to the shield 12. The tube is surrounded by a focusing coil 14.
Patent GB-790280-A (GB)
Title: Gas turbine engines having a multiple-stage turbine
IPC: F01D9/04
Filed: 1956-02-28
Abstract: 790,280. Gas turbine engines. KLOMPAS, N., and PURVIS, J. T. Feb. 28, 1956 [Feb. 28, 1955], No. 6185/56. Class 110 (3). In a gas turbine engine having a multi-stage turbine with a row of stator blades between two rotor stages, a shroud and casing assembly encircles the first stage rotor, a shroud ring encircles the second stage rotor and an outer casing ring encircles the inter-stage stator blades. The stator blades form part of an assembly comprising shroud ring segments disposed circumferentially end-to-end, each segment carrying a group of stator blades, whereby the stator shroud ring assembly may be installed in sections after assembly of the two rotor stages. The turbine shown comprises two rotor discs 14, 15 coupled together by bolts 16, and the first stage rotor blades 17 are surrounded by a shroud ring 31 and casing 32. The inter-stage stator blade assembly is built up of segments each comprising a segment 19 of the outer stator shroud ring, a segment 20 of the inner shroud ring and a number of inter-stage stator blades 18 mounted therebetween. Each stator blade segment may be inserted into position by a radial movement. A segment 33 of the second stage rotor blade shroud ring is secured to each stator blade segment and an outer casing 35 is moved axially over the assembly of stator vane segments and second stage rotor blade shroud segments and is secured to the casing 32 surrounding the first stage rotor. An exhaust casing 37, 38 is secured to the casing 35. Each segment 19 of the outer stator shroud ring comprises two walls 19a, 19b, the wall 19b being formed with openings to receive the outer ends of the stator vanes 18, and the wall 19a being formed with flanges 22, 23 and with strengthening ribs 27. The flange 22 is formed with an axially-directed flange 24 having a notch which engages a dowel pin 43 so as to locate the segment circumferentially. The flange 24 is clamped by the casing 35. The flange 23 of the wall segment 19a is also formed with axially-extending flanges 25, 26, the flange 26 being received in a groove in the edge of the second stage rotor blade shroud segment 33 and the two parts secured together by dowel pins 34. The flange 25 is received in a groove formed by a flange 35c on the inner surface of the casing 35. A groove at the downstream edge of the rotor blade shroud segment 33 is engaged by another flange on the casing 35. Each segment of the inner stator shroud ring 20 has secured thereto a ribbed member 28 and a channel member 29, labyrinth seal members 30 being secured to the radially inner surface of the channel member so as to co-operate with the rotor disc spacing ring 30a.
Patent GB-747048-A (GB)
Title: Improvements in the production of 2.5-dimercapto-1.3.4- thiadiazole
Filed: 1954-03-03
Abstract: 2,5 - Dimercapto - 1,3,4 - thiodiazole is prepared by reacting about 2 mols. of carbon disulphide with about 1 mol. of hydrazine at elevated temperature and in the presence of at least three equivalents of caustic soda solution, followed by acidifying the resultant solution (e.g. with hydrochloric acid).  Strongly alkaline technical solutions of hydrazine can be employed, e.g. those obtained from the reaction of ammonia and alkali-hypochlorite solutions, or from urea, alkali-hypochlorite and caustic alkali solution.  The reaction is preferably conducted at 50 DEG  to 80 DEG  C., and in presence of solvents (e.g. alcohols or ethers) and/or emulsifiers.
Patent GB-398195-A (GB)
Title: Improvements in apparatus for manufacturing moulded articles
IPC: B28B3/12
Filed: 1932-03-01
Abstract: 398,195. Moulding blocks, tiles, &c. in endless-chain moulding-machines. CRAIG, D., (Representative of WALKER, F. T.), 3, Hartshead, Sheffield. March 1, 1932, No. 6208. [Class 87 (ii).] Apparatus for moulding slabs, blocks, tiles, and the like comprises an endless chain of moulds 29 which first pass through a charging hopper 37 their contents being initially compressed and strickled by the projecting rear edge 40, thence under a spring-mounted tamping-plate 41 actuated by eccentrics 45, and finally under a screw-adjustable pressing- roller 15 rotating in contact with the material in a direction opposed to the travel of the moulds. Pallets rest on pins 31 in the moulds, Fig. 4, and are raised by ejecting-pins 33 when inclined shoes 35 contact with fixed inclines 36, thus ejecting the moulded articles for removal by hand. The shoes 35 are provided with springs adapted to return the pins 33 and pallets to normal position on disengagement of the shoes from the inclines 36. The pins move in bushes 34 screw-threaded into the base of the mould. The roller 15 is driven by a chain 21 tensioned by a counter-weighted jockey pulley 24.
Patent GB-1400691-A (GB)
Title: Process for the production of proteinaceous material
IPC: A23L5/20
Filed: 1973-02-08
Abstract: 1400691 Yeast BRITISH PETROLEUM CO Ltd 31 Jan 1974 [8 Feb 1973] 6213/73 Heading C6F [Also in Division C3] A process for reducing the quantity of nucleic acids present in a proteinaceous material involves treating the material with an organic solvent and thereafter subjecting the solvent-treated material to an aqueous alkali under conditions which solubilize nucleic acids. The proteinaceous material is exemplified by hydrocarbon assimilating yeasts of the species Candida lipolytica and Candida tropicalis. The organic solvent may be a C 1 -C 4  alcohol admixed with water in a ratio by volume of between 4 and 10:1, particularly the azeotropic mixture of isopropanol and water. Ketones, hydrocarbons and organic halogenated compounds are also mentioned in the context. After drying, the solvent-treated material is subjected to an aqueous alkali solution (pH 8À5-9À5) typically of strength 0.01-0À1Nper 100 grams dry weight per litre, at a temperature in the range 50 to 90‹C. The alkali may be potassium or sodium hydroxide, ammonia or ammonium hydroxide. The protein of reduced nucleic acid content is recovered by centrifugation, filtration or sedimentation. The solubilized nucleic acids contained in the aqueous phase can be recovered together with some protein and polysaccharide by precipitation in acid media, reverse osmosis, ultrafiltration, dialysis or enzymic attack.
Patent GB-608715-A (GB)
Title: Improvements in or relating to insecticidal compositions
IPC: A01N25/34
Filed: 1946-02-28
Abstract: A solid insecticidal composition is obtained by subjecting to a conforming pressure and thereafter drying a mixture of an active insecticidal agent, a liquid and a solid diluent or filler, the insecticidal agent being either benzene hexachloride, or a compound of the general formula R1(R2)CH-CX3 in which R1 contains at least 3 carbon atoms, R2 contains at least 5 carbon atoms and X is chlorine or bromide, e.g. dichlordiphenyl-trichlorethane.  Specified liquids are water, or organic solvents such as petroleum oil.  Specified solid diluents are kaolin, and chalk.  The product may also contain activating agents such as pyrethrum and organic thiocyanates.  If the product is to come in contact with rain a waxy substance such as paraffin wax may be added.  The solid may be moulded into a crayon or may be employed in banding fruit trees.  Specifications 547,871 and 547,874 are referred to.
Patent GB-363235-A (GB)
Title: Improvements in and relating to fire extinguishing apparatus
IPC: A62C13/70
Filed: 1931-02-27
Abstract: 363,235. Fire-extinguishers. NOR- 'rON, R., Westfield, Birchfield Road, Birmingham. Feb. 27, 1931, No. 6227. [Class 47 (ii).] In an extinguisher of the kind in which rotation of a rotary cock acts simultaneously to open a pressure generating capsule and a discharge passage to the nozzle, two capsules 9, 9a are arranged base to base in a tube 6 depending from the housing 2 of the cock 3. The cock has a cam groove 15 that co-operates with a plunger 10 to force the lower capsule against a piercer 7, and a deeper cam groove 15a which co-operates with a piercer 10a to open the upper capsule. The cock has two discharge passages 11 which can be brought to register successively with the delivery pipe 13. Rotation of the cock through an angle of 90" opens the lower capsule and brings one passage 11 into line with the pipe 13. Further rotation of the cock opens the upper capsule, and brings the second passage 11 into operative position.
Patent GB-139020-A (GB)
Title: Improvements in instruments for lighting cigars, cigarettes and other objects
IPC: F23Q2/14
Filed: 1919-03-13
Abstract: 139,020. Manz, J. March 13, 1919. Lighting - torches, non- electric.-In that type of pyrophoric igniter in which the striking-pin is normally inserted in a reservoir and is rubbed on a strip of pyrophoric material on the outside of the reservoir when igniting fibrous material surrounding the striking- pin, the reservoir a is adapted to be fixed to a wall &c., and its front consists of two flat surfaces a<4> sloping towards each other and having a strip a<3> of pyrophoric material dovetailed to the reservoir between the two surfaces a<4>. In one form, direct contact between the asbestos tuft c' on the striking-pin c<2> and the felt packing in the reservoir is prevented by means of a fixed perforated guide. tube b<2>. The base-plate a forming the lock of the reservoir is soldered thereto after the felt is in. troduced into the reservoir.
Patent GB-595276-A (GB)
Title: Improvements in or relating to bolts or like fastening devices
IPC: F16B19/12
Filed: 1945-03-14
Abstract: 595,276. Bolts. DU PONT DE NEMOURS & CO., E. I. March 14, 1945, No. 6367. Convention date, March 15, 1944. [Class 89 (i)] [Also in Group XXI] A fastening device especially for securing structural parts, joining sheets &c., where access can only be had from one side has a cavity 5, Fig. 2, at one end filled with explosive such as a mixture of tetrazene 10 per cent, nitromannite 25 per cent and aluminium powder 65 per cent, adapted to explode when the temperature of the rivet is raised. The explosive end is inserted in a hole in the parts to be joined such as two metal sheets 1 and 2 so that it is on the inaccessible side, and the surface 8 of the opposite end of the bolt 3, which is threaded as at 6 to receive a nut 7, is heated by means such as an electric iron. The other end explodes forming a head and drawing the plates together after which the nut is further tightened. The bolts may be of any expandible metal such as brass, aluminium, copper, iron, steel, or monel metal, and may be used on non-metallic structures. Specification 467,515 is referred to.
Patent GB-899583-A (GB)
Title: Therapeutic preparations
IPC: C07D295/13
Filed: 1960-02-23
Abstract: The invention comprises p-trifluoromethylbenzenesulphonyl ureas of the formula <FORM:0899583/IV (b)/1> wherein A is hydrogen, amino, ureido or nitro and R is an alkyl, e.g. propyl, butyl or amyl, aryl or aralkyl, e.g. pyridyl or pyridylalkyl, cycloalkyl, e.g. cyclohexyl, morpholinyl or morpholinylalkyl group, containing not more than 8 carbon atoms. The compounds are made by reacting a ptrifluoromethyl-benzenesulphonamide, optionally bearing an amino or nitro group in the o-position, with an isocyanate, e.g. an alkyl isocyanate; or with an alkyl chloroformate, followed by reaction of the resulting N-p-trifluoromethylbenzenesulphonyl alkyl carbamate with an amine RNH2.  If a is a nitro group it may be converted into an amino group by reduction, if desired. Specification 899,584 is referred to.
Patent GB-578160-A (GB)
Title: Improvements in or relating to coin computing devices for coin controlled apparatus
IPC: G07F5/22
Filed: 1944-04-06
Abstract: 578, 160. Coin freed apparatus. BRECKNELL, MUNRO, & ROGERS, Ltd., and DOLMAN, H. J. April 6, 1944, No. 6413. Drawings to Specification. [Class 27] Apparatus controlled by a coin-actuated totaliser has a plurality of circuits for coins of different denomination; each circuit has a solenoid, and all the solenoids actuate the totaliser through a common driving member. An apparatus incorporating the invention is described, and is identical with that of Specification 578,158. There are two solenoids for high and low denomination coins respectively. The totaliser is a ratchet-wheel driven by a pawl on a pivoted lever actuated by one solenoid through a pin-and-slot connection, and by the other through a tappet. In a modification, an intermediate lever is interposed between the tappet and totaliser lever, and has a hook which engages over the end of the totaliser lever at the end of its operative stroke so as to prevent the totaliser lever over-running. Specifications 578,159, 578,162 and 578,163 also are referred to.
Patent GB-901926-A (GB)
Title: Improvements relating to electrical butt connector members
Inventor: TOMPKINS WILFRED CHARLES
IPC: H01R13/24
Filed: 1960-02-24
Abstract: 901,926. Two-part couplings. DE HAVILLAND AIRCRAFT CO. Ltd. Nov. 7, 1960 [Feb. 24, 1960], No. 6436/60. Class 38 (1). An electrical butt connector consists of a rigid rectangular metal plate 12, which has cylindrical sleeves 20 of polytetrafluorethylene, located in holes 18 and retained by circumferential grooves 22. Recess 24 gives enough resilience to enable the sleeve to be inserted in hole 18, the tapered portion facilitating entry. Contact pin 30 which slides in bore 26 in the sleeve is urged downwards by spring 36 acting on washer 38 secured by circlip 40, its shoulder 32 engaging the end of the sleeve. The complementary contacts (not shown) may be fixed or spring-loaded and may be mounted in a similar manner to contact pins 30, in a common insulator body. Their heads may be recessed to receive butt contact heads 34 (Fig. 3, not shown).
Patent GB-1160110-A (GB)
Title: Film Spool
Inventor: WEIDENBACH WILLY
IPC: G03B17/30
Filed: 1968-02-09
Abstract: 1,160,110. Film spool. EASTMAN KODAK CO. Feb.9, 1968 [Feb. 11 1967], No.6446/68. Heading G2A. A film spool comprises a rotatably supported core 2c and a clamping member 3 which has at least one jaw, 3b, resiliently engaging the core and is connected to the core by means of a key and slot coupling 2a which rotates the clamping member with the core but allows lateral displacement of the clamping member relative to the core to facilitate insertion and withdrawal of a film end 7a.
Patent GB-1190906-A (GB)
Title: Improvements in and relating to Jewellery Chain
Inventor: VACHEY EMILE LUCIEN
IPC: A44C11/00
Filed: 1969-02-06
Abstract: 1,190,906. Ornamental chains. E. L. VACHEY. 6 Feb., 1969 [19 Feb., 1968], No. 6461/69. Heading A3H. [Also in Division F2] A chain comprises a plurality of links each formed from a basic loop 1, pinched intermediate its ends to form two coupling loops and bent about the pinched region 3 so that the coupling loops lie in different planes, the pinched region being received in a coupling loop of an adjacent link through which neither loop extending from the pinched region can pass. During assembly of the chain, each larger loop 2 is opened up to enable the smaller loop of an adjacent link to pass through, and thereafter reclosed.
Patent GB-608820-A (GB)
Title: Improvements in and relating to electric switches particularly tumbler switches
IPC: H01H23/12
Filed: 1946-03-01
Abstract: 608,820. Tumbler switches. NEW DAY ELECTRICAL ACCESSORIES, Ltd., and DAVEY, L. E. W. C. N. March 1, 1946, No. 6463. [Class 38 (v)] A contact member 1 is rocked about a fulcrum 5 by a spring plunger 8 and ball 9 within a dolly 7 to engage fixed contacts 4 alternately. The member 1 is riveted to or integral with a flexible side strip 2 connected to a terminal 3. Curved ends 11 of the member serve as stops for the dolly. A modification is described wherein a push-pull rod carries at its ends rollers which are held in contact with the member 1 and actuate it.-
Patent GB-103241-A (GB)
Title: Improvements in and relating to Helmets or other Headgear of Soldiers.
Inventor: BAKER PHILIP
IPC: A42B3/04
Filed: 1916-05-08
Abstract: 103,241. Baker, P. May 8, 1916. Accessories; caps; helmets; with internal handle or grip.-Helmets and other head-gear are provided with an internal grip handle or strap and an external dagger or shield. The handle may be an ordinary leather handle, or a metal handle which can be fashioned like a knuckle-duster, or even a simple strap or strip of webbing. As shown in section in Fig. 2, the helmet is provided with an internal leather handle g attached by links h to an anchor plate e, into which at the centre is screwed the enlarged end b of a dagger a. A screw f may be used to lock the dagger in position. A spring catch k is provided to retain a scabbard in position over the dagger when required. When the dagger is mounted upon a cap, as shown in Fig. 4, it is hinged in lugs l on a plate b, and is provided with a sliding sleeve m, which, when the dagger is raised, passes over the lugs, while a spring n on the sleeve engages a hook o on the plate b. The dagger may be omitted, the outer plate b being extended to form a shield for use when the helmet &c. is held by the internal grip in front of the body. This form is stated to be particularly useful for policemen or firemen as a knuckle-duster or hammer. According to the Provisional Specification 6562/16 the dagger may be removable.
Patent GB-525770-A (GB)
Title: Improvements in or relating to fluid-actuated valve devices
IPC: F16K17/00
Filed: 1939-02-28
Abstract: 525,770. Fluid-actuated valves. TECALEMIT, Ltd., Feb. 28, 1939, No. 6590. Convention date, March 1, 1938. [Class 135] A valve device for automatically limiting the pressure built up in a closed space, for example in the auxiliary reservoirs feeding the brake cylinders of a fluid-pressure braking system, by closing the valve admitting fluid to the space, comprises an admission valve 5 controlling the inlet of fluid at 8 to a space 11, 12, the valve being opened by a piston 23 pressed upwards by a spring 25, and retained open by a spring catch 6, which is released by a cam 24 on the piston rod when the pressure has moved the piston down sufficiently for the cam to engage a shoulder 6c on the catch. The tension of the spring 25 is adjusted by a screw 27, to which is attached an indicating- cap 28 moving over a scale on the cylinder 2 ; or the cam 24 may be adjustable.
Patent GB-563736-A (GB)
Title: Improvements in or relating to sliding roofs of motor cars
IPC: B60J7/053
Filed: 1943-04-24
Abstract: 563,736. Opening tops. MOBBS, H. April 24, 1943, -N, c), 6594. [Class 108 (i) A sliding roof construction for saloon vehicle bodies comprises a roof, the front portion 11 of which is a unitary structure extending out to the rounded sides of the roof (as in Specification 503,407) and adapted to slide back under or within the fixed rear portion 10 of the roof, there being two guide members 12 connecting the upper part of the windscreen to the fixed roof structure and serving to guide and support the sliding roof part 11 by means of runners such as the spring 21 and pad 25, shown in transverse section Fig. 6, engaging in one of the channel guide members 12. The guides 12, as shown in side elevation Fig. 2, conform to the roof curvature in the longitudinal direction. The rising and falling movements of the sliding portion 11 are imparted to it by means of supporting rollers 27, shown in longitudinal section Fig. 8, running over ramp-shaped ends of fixed rails 28. A clamping means with clamps 32, as shown in Specification 436,458, is applied to the guide members 12 to lock the sliding portion.
Patent GB-589114-A (GB)
Title: Improvements in or relating to pulse modulators
IPC: H03K3/53
Filed: 1945-03-15
Abstract: 589,114. Pulse shaping. LAGER, F. J. W., and SNOWDEN, M. March 15, 1945, No. 6599. [Class 40 (iii)] A pulse-shaping network uses a delay line consisting of coaxial transmission cable which is continuously loaded in order to reduce its propagation velocity, thereby permitting shorter lengths of cable to be used. The cable may consist of a spiral 5 of single-strand enamelled copper wire wound on a cord of polythene, sheathed with further polythene and braided with tinned copper wire to form the outer conductor 4. In the circuit shown, a triggering device 3 operates at an instant determined by the modulater 2 to discharge the cable through the transmitter (e.g. a magnetron) 1, the period of oscillation being determined by the delay of the line 4, 5. This type of construction also has a higher characteristic impedance more suitable for matching to a transmitter such as a magnetron.