baber/WOPTO huggingface dataset:
Patent GB-320143-A (GB)
Title: Improvements in slabs or blocks of concrete for the production of ceilings, floors and walls for buildings and the like
IPC: E04B2/26
Filed: 1928-07-13
Abstract: 320,143. Concrete, Ltd., and Mathews, C. B. July 13, 1928. Blocks and slabs for floors and walls.-Hollow slabs are formed from reinforced concrete sheets bent along grooves provided upon one surface to form units of the desired shape without the use of filling material at the joints. As shown in Fig. 1, a concrete sheet a reinforced at b with metal bars, wire gauze, wire, &c. is bent along the grooves c to form a rectangular unit. The units may be superposed to form a wall having a series of vertical air spaces, or horizontally disposed and provided with notches h, Fig. 2, to engage floor girders. In a modified floor construction, the units are bent to a trough-shape as shown in Fig. 3 and are each supported upon a flat slab d mounted on the floor girders k.
Patent GB-735881-A (GB)
Title: Improvements relating to indicating devices for electric and magnetic circuits
Inventor: ARMOUR ALAN MARSH
IPC: G01R19/14
Filed: 1952-08-13
Abstract: 735,881. Current direction indicators. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 23, 1953 [Aug. 13, 1952], No. 20376/52. Class 37. Apparatus for indicating the direction of current flow in an electric circuit, e.g. of an electromagnet used in crack detecting apparatus of the kind described in Specification 735,880, comprises in series with the energizing coil 2 a resistor 1 shunted with two parallel arms respectively containing oppositely poled half-wave rectifiers 4, 6 in series with indicator lamps 3, 5, one of which is illuminated for current flow in each direction.
Patent GB-271298-A (GB)
Title: Improvements relating to the heating of motor vehicles
IPC: B60H1/08
Filed: 1926-08-19
Abstract: 271,298. Schwarz, A., and Schwarz, H. Aug. 19,1926. Heating vehicles.-The flow of hot water in the pipe 23 is diverted to foot-warmers in the vehicle by a valve 6. If the circulation is maintained by a pump 2 a four-way valve is used; if by the so-called thermo-siphon action, a threeway valve is used, the return to the engine being by way of an additional pipe. Reference has been directed by the Comptroller to Specifications 11411/03, 5969/14, 1429/15, 218,041, and 221,864.
Patent GB-1470528-A (GB)
Title: Surfactant-free stabilised latices
IPC: C08F257/00
Filed: 1974-05-09
Abstract: 1470528 Surfactant-free latices ARCO POLYMERS Inc 9 May 1974 [23 May 1973] 20651/74 Heading C3P A process for preparing a surfactant-free latex from a mixture comprising a conjugated diolefin and an alkenyl aromatic monomer comprises polymerizing the mixture in an aqueous acidic suspension in the presence of a persulphate polymerization initiator and a compound which will prevent the hydrolysis of persulphate radicals to hydroxyl ion, e.g. N- methylolacrylamide. The conjugated diolefin may be 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, 2-methyl-2,3-butadiene, 2,3-dimethyl- 1,3-butadiene, 2-methyl-2,3-butadiene, 2- chloro-1,3-butadiene or piperylene. The alkyl aromatic monomer may be styrene, methylstyrene, dimethylstyrene, ethylstyrene, chlorostyrene, 2,4-dichlorostyrene, 2,5-dichlorostyrene, divinylbenzene, alpha-methylstyrene or vinyl naphthalene. An additional copolymerizable monomer may also be included, e.g. acrylonitrile, acrylic acid, itaconic acid, fumaric acid, maleic acid, vinylidene chloride or acrylamide. In a preferred embodiment the process is carried out in two stages wherein 30 to 50% by weight of the mixture is polymerized in the first stage and the remaining 70-50% is polymerized in the second stage.
Patent GB-1440039-A (GB)
Title: Folding doors
IPC: E06B3/48
Filed: 1974-05-10
Abstract: 1440039 Folding door W RUNKA 10 May 1974 [15 May 1973] 20664/74 Heading E1J A panel assembly for a folding door comprises rigid panels 1 and flexible hinge members 2. The longitudinal edges of each panel are bent to form channels 3, 4 extending from the plane of the panel on opposite sides. Each channel has a transverse portion 5 and a bent-back portion 6. The hinge member comprises a web 7 and a pair of hook-shaped lipportions 8 with beads 11. When the door is in the collapsed position the hinge portion 2 extends round and engages in a pair of oppositely disposed channels; during extension the panels first rotate on the hinge members which then bend to allow the panels to open to a wide angle. The panels may be of metal and the hinge members of PVC.
Patent GB-663761-A (GB)
Title: Improvements in the manufacture of polyamides by condensation in presence of catalysts
IPC: C08G69/04
Filed: 1948-08-05
Abstract: Amino acids, mixtures of diacids with diamines or mixtures of amino acids with diacids and diamines are condensed to produce polyamides, or polyamides made from such reactants are condensed to a higher degree of condensation, in presence of an inorganic substance capable of generating hydrogen phosphide (PH3) at the condensation temperatures used, e.g. sodium and ammonium hypophosphite or hypophosphorous acid.  In examples, 11-amino undecylic acid is condensed at 218 DEG  C. and in a current of nitrogen in presence of (1) hypophosphorous acid, (2) ammonium hypophosphite.
Patent GB-168589-A (GB)
Title: An improved fluid-pressure governor
IPC: G05D13/00
Filed: 1921-08-04
Abstract: 168,589. Machinefabriek Geb. Stork & Co. Sept. 3, 1920, [Convention date]. Fluid governors; flnid relays.-A fluid governor comprises a piston 17 exposed on the underside to the fluid pressure of a pump &c. driven by the motor to be governed, and loaded on the upper side by a spring 19. The piston 17 controls ports 21 in a stationary member 20, the interior of which communicates through a port 26 and passage 27 in the rod 28 with the upper side of a larger piston 29. If the engine speed increases, the piston 17 is raised and pressure fluid passes from the pipe 2 through the ports 21, 26 and passage 27 to the upper side of the piston 29, which moves down against the action of the spring 19 and tends to clcse the throttle valve 31 and restore the piston 17 to its former position. If the engine speed decreases, the piston 17 descends until a groove 18 registers with the ports 21 and connects the upper side of the piston 29 to the exhaust pipe 15, enabling the spring 19 to raise the piston 29 and open the throttle valve. The tension of the spring 19 may be adjusted by means of the hand-wheel 30.
Patent GB-1517793-A (GB)
Title: Motor vehicle testing device including pulse shaper circuits
IPC: H03K17/28
Filed: 1975-05-16
Abstract: 1517793 Testing ignition circuits of I C engines ROBERT BOSCH GmbH 16 May 1975 [19 Dec 1974] 20793/75 Heading G1U [Also in Division H3]  A positive ignition pulse detected by an inductive pick-up 10, Fig. 1, fires an SCR 22, which remains on whilst the charging current of a capacitor 26 is sufficiently high, but any subsequent positive pulse cannot refire the SCR until the capacitor 26 has discharged via a resistor 30. Thus, ignition pulses are detected but closely following spurious pulses are ignored. In a second embodiment, Fig. 3 (not shown), a capacitor input common-emitter stage is employed.
Patent GB-1294314-A (GB)
Title: Improvements in the casting of materials
Inventor: MATTHEWS GEOFFREY
IPC: B28B7/46
Filed: 1969-04-23
Abstract: 1294314 Casting concrete R H MINTER 21 April 1970 [23 April 1969] 20825/69 Heading B5A A method of casting mouldable materials, e.g. concrete, plaster, clay, eythol silicate, and bonded refractory materials, comprises the steps of placing a flexible lining in a mould former 2, applying a negative pressure between the lining and the former, placing the mouldable material 4 on the lining and vibrating it placing a filter element 3, e.g. paper or woven fabric, on the material 4, and an extractor 6 on the filter 5, the extractor having a plurality of labyrinth passages therein, and being covered by a flexible membrane 7, applying a negative pressure to the material 4, via the extractor, to remove liquid from the material and to stabilize it, and ejecting the material before it is fully cured. The sides (2a) of the former, Fig. 5, not shown, are retractable. In Fig. 6, not shown, the mould is carried on a vibratory table (13), movable along rails (14) to a position below an extractor (17), and, after the moulding operation, to a position adjacent a stacking frame (19), where the table is hinged upwardly for removal of the moulded material. The lining 1 can be pre-shaped to a shape slightly smaller than the former 2, and can be contoured. The mouldable material can be layered or reinforced. A positive pressure can be applied between the liner 11 and former 2 to eject the moulded material, or the material can be removed from the mould by the attachment of vacuum pads.
Patent GB-687304-A (GB)
Title: Improvements in check valves for hydraulic apparatus such as brake systems
IPC: F15B7/10
Filed: 1950-08-24
Abstract: 687,304. Valves. BENDIX AVIATION CORPORATION. Aug. 24, 1950 [Aug. 29, 1949], No. 20994/50. Class 135 [Also in Group XXXIV] A check valve 62 in, e.g. a hydraulic braking system and controlling the flow of liquid between a replenishing tank 24 and a cylinder 26 housing a piston 28 which, on the depression of a pedal 12, moves to expel the liquid in the cylinder through a spring-loaded check valve 84 to the brake cylinders 17, comprises a spring-urged valve member 60 mounted on a stem 72 passing loosely through a flared hole 68 in a plug 64. A tubular member 44 secured to the piston and serving as an abutment for a spring 54 is formed with a flange 48 engageable with the stem 72. On release of the pedal 12, the spring 54 urges the piston 28 to the left, thus reducing the pressure in the cylinder 26 so that the higher pressure in the brake cylinders 17 unseats a valve 90 at the end of the cylinder to release the brakes. Upon engagement of the stem 72 by the flange 48 the valve 60 is unseated to permit the replenishment of the cylinder from the tank 24. The valve 60 functions as a normal non-return valve when the pressure in the cylinder is less than that in the tank. Specification 305,994, [Class 103 (i)], is referred to.
Patent GB-1467356-A (GB)
Title: Apparatus for welding a flange to a pipe
IPC: B23K9/028
Filed: 1974-05-13
Abstract: 1467356 Welding by fusion MITSUI SHIPBUILDING & ENG CO Ltd 13 May 1974 [14 May 1973] 21007/74 Heading B3R In apparatus for welding a flange 11 to a pipe 2 by torches 8, 23 effecting outer and inner filler welds, two fixed and parallel axes rollers (1, Fig. 1, not shown) are provided to support and rotate the pipe, the torches 8, 23 are respectively mounted on slides 6, 21 movable, parallel to the pipe axis, respectively on vertically movable slides 4, 20, the slides 4, 6 are pneumatically movable and carry pipe and flange engaging rollers 10, 12 for locating of the torch 8 radially and axially of the pipe and flange, the slide 21 is pneumatically movable and carries a flange engaging roller 24 for location of the torch 23 axially of the pipe and flange, and to adapt the apparatus to the welding of flanges and pipes of different diameters whilst mounting such pipes on the same fixed axes rollers (1), the slide 20 is movable in a predetermined relationship with the movement of the slide 4 by way of a transmission comprising a suitably profiled cam 16 which is rotated by the slide 4 via a rack and pinion 13, 15 and acts on the slide 20 via a follower 18. The flange and pipe may be initially tack welded together.
Patent GB-1071208-A (GB)
Title: An improved semiconductor device suitable for use as a high voltage rectifier
IPC: H01L21/24
Filed: 1966-05-12
Abstract: 1,071,208. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. May 12, 1966 [May 24, 1965], No. 21042/66. Heading H1K. A semi-conductor wafer has a peripheral shoulder 36 defining a lateral shoulder surface 38 which is substantially parallel to the major wafer surfaces 4 and 6 but smaller in area than the smaller major surface 4, and a PN junction 22 extends across substantially the entire wafer area between a layer 18 of one conductivity type extending from the junction 22 to the larger major surface 6 and a layer 20 of the opposite conductivity type extending from the junction 22 to the shoulder surface 38 and the smaller major surface 4. The device is intended particularly for use as a high-voltage rectifier.
Patent GB-673535-A (GB)
Title: Improvements in or relating to apparatus for interring or disinterring submerged bodies
IPC: E02F5/10
Filed: 1948-08-10
Abstract: 673,535. Excavating earth. VILLAROSA, P. N. DI, and POLEDRELLI, C. Aug. 10, 1948. [Oct. 17, 1947] No. 21049/48. Class 68 (i). [Also in Group XXXVI] In apparatus for excavating a trench in strata below water, such as when laying or recovering electric cables 1, jets of water 10 issue from a structure 4 moving in the required direction of the trench. One form of structure is a hollow conical sleeve having a cylindrical bore made in two hinged symmetrical parts that fit around and slide on the cable which it is desired to lay or recover. The forward parts of the inner and outer portions of each part of the sleeve approach together to form a semicircular slot so that water under pressure from pumps on the ship 3 pass down a pipe 5 through a distributor box loosely slipped on to the cable and thence by hoses 13, 14 to each part of the sleeve to issue through the semicircular slots to disintegrate the mud. Ports are formed in the side of the parts of the sleeve and a lead balance weight 34 is adjustably secured to one part of the sleeve. To disintegrate any mud overhanging the trench formed by the main forwardly directed jets, an adjustable auxiliary nozzle 35 is fitted to the upper part of the sleeve. A second form of structure comprises a hollow box body secured to a roller-mounted carriage that is advanced along the cable by a towing hawser from the ship, the body having jets of water under high pressure emerging from the front, bottom and sides thereof to disintegrate the mud. The structure may be propelled forward by suitably controlled jets. The Specification, as open to inspection under Sect. 91, comprises also the subject-matter of Specification 673,627. This subject-matter does not appear in the Specification as accepted.
Patent GB-1217683-A (GB)
Title: Improvements in or relating to wire feeding
Inventor: DOXEY BRIAN CECIL
IPC: B23K9/133
Filed: 1967-05-05
Abstract: 1,217,683. Welding by fusion. BRITISH OXYGEN CO. Ltd. 25 April, 1968 [5 May, 1967], No. 21052/67. Heading B3R. Continuous flexible wire, e.g. a welding electrode, is fed through an elongated conduit by passing a stream of liquid through the conduit. The frictional force applied to the wire by the liquid stream may be supplemented by the driving force of feed rollers at either end of the conduit, e.g. at the welding torch. The liquid may be circulated by a pump and may be oil or water with if desired a thickening agent, e.g. soluble silicates or colloidal graphite. Alternatively, the liquid may be liquid carbon dioxide or a gas producing liquid flux, e.g. sodium alginate with 2% water, sodium carboxylmethylcellulose sodium or potassium silicate in water, tri-methyl borate in methanol, or sodium bicarbonate with sodium silicate in water. In such cases the liquid after passing through the conduit is fed through passages 15, Fig. 3, in the contact tube 13 to issue as jets into the arc. Where the liquid is to be prevented from reaching the arc, the wire at the end of the conduit 2, Fig. 5, is passed through spaced nylon guides 21, 22, 23, the centre guide having a greater clearance than the other two. Shielding gas, e.g. argon, under pressure is forced from an inlet 24 through the central guide 22 to an outlet 25 to remove the feeding liquid such as water. Where the torch has a curved nozzle, the conduit may be of reduced diameter near the torch to provide an increased feeding force. The feeding liquid may be used to drive a feed motor at the torch. Where an auxiliary feed motor is used, a power limiter, e.g. a current limiter or a slipping clutch limits the feeding force applied by the feed rolls.
Patent GB-1381350-A (GB)
Title: Slurry seal composition and process
IPC: C08L95/00
Filed: 1972-05-05
Abstract: 1381350 Bituminous emulsions AKZONA Inc 5 May 1972 [6 May 1971] 21077/72 Heading B1V [Also in Division C3] Cationic bituminous emulsions comprise a bituminous material, water and (a) a monoquaternary compound of the formula (I) in which R is alkyl or alkenyl (C 8-22 ), R<SP>1</SP> is -(-CH 2 CH 2 O-) a -H or (I)'; R<SP>2</SP> is -(-CH 2 CH 2 O-) b -H or (I)" wherein a and b are 1-10 and the sum of a and b is 2-10; R 3  is alkyl (C 1-6 ); and A is an anion; or (b) a polyquaternary ammonium compound of the formula (II)  wherein R is as above; R 4  is alkyl (C 1-6 ), (-a) -(-CH 2 CH 2 O-)- a H or (I)'; R 6  is alkyl (C 1-6 ), -(-CH 2 CH 2 O-)- b H or (I)"; R 5  is alkyl (C 1-6 ), (-a) -(-OH 2 CH 2 O-)- o H or (I)"'; R 7  is alkyl (C 1-6 ), -(-CH 2 CH 2 O-)- d H or (II)"; R 8  is alkyl (C 1-6 ), -(-CH 2 CH 2 O-)- e H or (II)"' wherein a, b, c, d and e  is 1-20, w is 2-4 and p is (m+1), m being 1 or 2 and A is an anion. The examples refer to the use of N-tallow-N,N,N',N',N'-pentamethyl trimethyl diammonium dichloride; N- oleyl-N-methyl, N,N-bis-hydroxyethyl quaternary ammonium chloride; N-tallow trimethylene diammonium dichloride ethoxylated with 3 moles of ethylene oxide; N-tallow N-trimethylene amino-N'-trimethylene amino-N,N, N,'N',N",N",N"-heptylmethyl triquaternary ammonium trichloride; and N-tallow-N-propoxy N,N',N',N'-tetramethyl trimethylene diammonium dichloride.
Patent GB-438472-A (GB)
Title: Improvements in or relating to stands for heating electric hand-irons
IPC: D06F79/02
Filed: 1934-07-19
Abstract: 438,472. Heating by electricity. DONALDSON, D., 3, Royal Park Terrace, Edinburgh. July 19, 1934, No. 21102. [Class 39 (iii)] In electric hand-irons F having terminals B brought into direct contact with supply contacts A on a stand C, the contacts A. are completely enclosed in a casing G and an earthing clip E is attached to a cross-bar D of the stand so as to bear on the iron until it is clear of the contacts, to avoid risk of shock. The terminals B project into holes H in the insulated casing G.
Patent GB-1159524-A (GB)
Title: Motor Vehicles
Inventor: MELLOR RONALD WILLIAM
IPC: G01G3/14
Filed: 1967-05-06
Abstract: 1,159,524. Weighing electrically. FORD MOTOR CO. Ltd. May 6, 1967, No.21183/67. Heading G1N. To determine the load carried by a motor vehicle, resistance strain gauge units are mounted on the front and rear axles, each unit comprising two pairs of strain gauges inter-connected in a bridge network, whose unbalance current is indicated on a meter, and may be used to light an alarm lamp.
Patent GB-870753-A (GB)
Title: Improvements in or relating to methine dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/10
Filed: 1957-07-04
Abstract: 1 ;1 ;2-Trimethyl-3 ;4-diazaindene is prepared by refluxing 2-hydrazino pyridine and methyl isopropyl ketone in benzene and removing the water formed by azeotropic distillation.  The residue is heated with anhydrous zinc chloride, whereupon ammonia is evolved to yield the required product.  The product is quaternized at the 4-N atom by refluxing it in acetone with methyl iodide. Reference also is made to the ethyl iodide and to 1 : 1-diethyl-2-methyl-3 ;4-diazaindene and its methyl toluene-b -sulphonate; to 1 ;1 ;2 ;5-tetramethyl-3 ;4-diazaindene-4-methiodide and to 1 ;1 ;2 ;7-tetramethyl-3 ;4-diazaindene-4-methiodide.ALSO:Methine dyes having one of the general formulae I, II or III:-  <FORM:0870753/IV(c)/1> wherein R1, R2, R5 and R6 are alkyl groups of 1 to 4 carbon atoms, R3 is an alkyl or hydroxyalkyl group of 1 to 4 carbon atoms or an aralkyl group, R4 is an alkyl group of 1 to 4 carbon atoms or an aralkyl group, m and n are 0 or 1, X is an anion, Y is H or an alkyl group of 1 to 4 carbon atoms, Z is CH or N, D1 completes a 5- or 6-membered heterocyclic ring, and D2 is the residue of a ketomethylene nucleus, are prepared by condensing a compound of the formula:-  <FORM:0870753/IV(c)/2> with (1) a cyclammonium quaternary salt having a reactive thioether, thioethervinyl or acetanilidovinyl group, (2) a cyclic ketomethylene compound which has been condensed with an alkyl orthoformate, or (3) a p-dialkylamino-benzaldehyde. Example are given of the preparation of dyes wherein R1, R2, R3, R4, R5 and R6 are methyl or ethyl groups, Y is H or methyl, D1 completes a benzthiazole, benzoxazole, quinoline, indolenine or thiazole nucleus, and D2 is the residue of 3-methyl-1-phenyl-5-pyrazolone or 3-ethyl-2-thio-4-thiazolidone.  According to the Provisional Specification, one of the methine groups in the merocyanine dyes may have an alkyl substituent.
Patent GB-532459-A (GB)
Title: Improvements in or relating to machines for printing on ribbon or strip metal
IPC: B65H18/26
Filed: 1939-07-22
Abstract: 532,459. Winding webs. EMPIRE ALUMINIUM CO., Ltd. (Anders A. Pindstofte's Maskinfabrik Aktieselskabet.). July 22, 1939, No. 21338. [Class 100 (i)] In a machine for printing on a strip, e.g. of aluminium foil and winding the strip into a roll, the winding spindle 7 is driven by a pulley 8 through a clutch, the pressure of which is increased automatically as the winding proceeds in order to keep the tension of the strip constant. The clutch pressure is applied by a spring 10 bearing against a nut 9 provided with sprocket teeth 11 around which passes a chain 12 attached at one end to an arm 16 on a shaft 17 to which is also secured an arm 14 carrying a roller held in contact with the roll 6a of strip by a weight on the free end of the chain 12.
Patent GB-379481-A (GB)
Title: Improvements in and relating to shoe socks, foot arch, and other like supports
IPC: A43B7/22
Filed: 1931-07-27
Abstract: 379,481. Insoles and socks. HOLLAND, F. W., 46, South Audley Street, London. July 27, 1931, No. 21390. [Class 17 (ii).] Shoe socks, foot-arch, and like supports are provided on the underside with a U-shaped strip of airtight, resilient material, so arranged that upon applying pressure a suction effect between the portion of the support within the strip and the adjacent insole maintains the support in position. Around the heel a of a support A is secured, as by glueing, a strip B of sponge rubber, semicircular in cross section, the rounded portion b<1> having a prepared airtight surface, and the ends b<2> tapering gradually so that pressure of the heel effects closure of the space C. The extremities b<3> may be inserted into slits formed in an upper fibrous layer of the support. The strip B may be of circular cross section.
Patent GB-747608-A (GB)
Title: Improvements in or relating to casings having filling orifices
IPC: H02G15/113
Filed: 1952-08-26
Abstract: 747,608. Junction boxes. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and HUBBARD, H. Aug. 26, 1952, No. 21452/52. Class 38 (1). Plastic insulating compound is poured into a casing 10 for a junction-box through slots 20, 21 defined between the wall 15 of an aperture 17 and a shielding plate 18 supported from wall 15 and a wall 16 which divides an orifice 14 to form aperture 17 and another aperture which permits the escape of air from the casing through slot 23 defined by the aperture wall and a shielding plate 22 supported from wall 16. A slot 24 in plate 22 permits the insertion of a chisel to remove any obstruction.
Patent GB-226580-A (GB)
Title: Improvements in rotary screens
IPC: D21D5/06
Filed: 1923-08-25
Abstract: 226,580. Clarke, R. S. Aug. 25, 1923. Rotary strainers.- In apparatus for straining pulp comprising a rotary screen enclosed in a vibrating vat, arresting devices are interposed between the wall of the vat and the exterior surface of the screen to prevent the flow of pulp along the surface of the screen. As shown in Fig. 1 the devices take the form of ribs 5 secured to the screen. The ribs may be provided with flexible extensions at their outer edges. The pulp is supplied to the vat by troughs 15, 16, and the vat is supported in cradle arms 7, connected at one side to flexible members 8 and oscillated by arms 12 from, a cam 14.