baber/WOPTO huggingface dataset:
Patent GB-981574-A (GB)
Title: Improvements in turrets for machine tools
IPC: B23Q16/08
Filed: 1962-08-17
Abstract: 981,574. Lathe details. P. F. DE VALLIERE. Aug. 17, 1962 [Sept. 2, 1961], No. 31748/62. Heading B3T. A tool-turret comprises a carrier 22 indexable on a post 12, co-operating tapered wedging and planar surfaces 15, 17, 25, 27 on the carrier and post, resilient means 37 for locating the carrier in indexed positions, and means 32 for clamping the carrier. The post 12 may be secured adjustably to a base 1 by a bolt and nut 4, 7, the bolt-head being housed in a nut 30 turned by the lever 32 for clamping the carrier. A flanged ring 28 on the carrier coacts with the nut 30 for raising the carrier during indexing. Four diagonally - opposite tapered pins 35, Fig. 3, are carried by the carrier and locate in a pocket 44 in a flexible arm 43 of the annular spring 37 to position the carrier. The spring is secured to the post 21 by pins 40 or brazing. To index the carrier, the clamping nut 30 is released sufficiently to permit the operative pin 35 to deflect the spring as the carrier is turned and the operative pin leaves the pocket. The pocket may be formed by one limb on a spring, Fig. 9 (not shown), and a rigid limb projecting from the base 1, or by two limbs, Fig. 10 (not shown), projecting from the base, one of which is spring-pressed or forms part of a spring, Fig. 11 (not shown).
Patent GB-1011233-A (GB)
Title: A new or improved apparatus for use in drilling boreholes
Inventor: PRICE JOHN
IPC: E21B10/32
Filed: 1962-08-18
Abstract: 1,011,233. Boring earth, &c. LILLESHALL CO. Ltd. Aug. 18, 1962, No. 31780/62. Heading E1F.  In borehole drilling apparatus having reaming cutters 34 displaceable radially to ream an annular shoulder of earth to permit advancement of a liner tube 20, reaming cutters 34 are pivoted at 33 on a drilling bit, which has limited rotation relative to its driving shaft 11, each cutter having an abutment 35a engaging a cam 32 on the shaft 11 so that on rotation of the bit in one direction the cutters 34 swing out into the reaming position by the action of springs 38. The bit comprises blades 24 having cutters 26 and a pilot cutter 15. In drilling, the cutters 34 are normally retracted (Fig. 1) and a borehole 28 is cut by the bit. The blades 24 are mounted on a sleeve 21, rotatable around shaft 11 through about 75 degrees so that driving dogs 31 may engage blades 24 on either side depending on the direction of rotation of the shaft 11 (Figs. 4, 5, not shown). The liner tube advances under its own weight, end 47 breaking down the tube wall. On encountering rock 49 (Fig. 3) the rotation of shaft 11 is reversed and abutments 35a, previously held on the 'high' parts of cams 32, are left unsupported as cams 32 rotate through 75 degrees to the new driving position. Springs 38 then tend to force reaming cutters 34 outwards to cut away the rock. A sudden drop by the tube 20 on to cutting edges 40 of cutters 34 tends to push the cutters 34 inwards. Flushing water may be passed down tubes 48 in the wall of liner tube 20 and down the space between the tube 20 and the shaft 11, and be withdrawn up the inside of shaft 11. A centralising means 43 may be provided.
Patent GB-505992-A (GB)
Title: Improved stormproof threshold for doors
IPC: E06B1/70
Filed: 1937-11-19
Abstract: 505,992. Door sills. LAVERACK, A. Nov. 19, 1937, No. 31825. [Class 20 (iii)] A weather excluding threshold for doors has a groove 1 in its upper surface and two drain holes 2 communicating therewith, arranged at an angle of 45‹. A rebated beading 3 having a recessed outlet 4 is attached to the front of the threshold to act as a wind stop.
Patent GB-785157-A (GB)
Title: Ion exchange resins and method of preparation thereof
Inventor: ABRAMS IRVING MELVIN
IPC: C08F293/00
Filed: 1955-11-08
Abstract: Porous ion exchange resins are prepared by prepolymerizing a monovinyl aromatic monomer, mixing with an unpolymerized polyvinyl compound and copolymerizing the mixture to form a hard, water-insoluble matrix which is after-treated to introduce ion-exchange groups.  Specified monovinyl monomers are styrene, vinyl toluene, vinyl xylene, vinyl naphthalene, ethyl vinyl benzene and vinyl chlorobenzene.  Specified polyvinyl compounds are divinyl benzene, divinyl toluene, divinyl xylene, divinyl naphthalene, trivinyl benzene, divinyl chlorobenzene, diallyl phthalate, diallyl fumarate and divinyl acetylene.  The monovinyl monomers may be prepolymerized by heating, preferably in an inert atmosphere, e.g. of carbon dioxide, nitrogen, helium, argon, methane and ethane, and optionally in the presence of a catalyst, e.g. benzoyl peroxide, lauroyl peroxide, tertiary-butyl hydroperoxide, methyl ethyl ketone peroxide, tertiary-butyl perbenzoate, aluminium chloride and sulphuric acid, and then cooling to stop further polymerization.  The viscosity of the prepolymer may be adjusted by adding monomer or polymers of lower or higher viscosities.  Alternatively completely prepolymerized monovinyl compounds may be dissolved in the monomers. The mixtures of prepolymers and polyvinyl compounds may be copolymerized by heating in bulk or preferably in aqueous dispersion in the presence of a suspending agent, e.g. polyvinyl alcohol, starch or gum arabic, and catalyst, e.g. organic peroxides such as benzoyl peroxide, inorganic peroxides, water-soluble perborates, persulphates and perchlorates, and ozone.  The copolymers may be sulphonated, e.g. with sulphuric acid, nitrated or chlorinated, e.g. with phosphorus trichloride and chlorine; or chloromethylated, e.g. with methyl chloromethyl ether and anhydrous zinc chloride, and aminated, e.g. with dimethyl ethanolamine.  In examples, anion exchange resins are used to decolorize diluted molasses.
Patent GB-604543-A (GB)
Title: An improved centering or like punch
IPC: B25D5/00
Filed: 1945-11-26
Abstract: 604,543. Automatic centre punches. YOUNG, S. G. Nov. 26, 1945, No. 31885. [Classes 61 (ii) and 124] An automatic percussion punch for centre punching has detent means for holding the striker in position in which its associated compression spring is stressed and trigger means for releasing the detent enabling the spring-urged striker to impart a blow on the punch. The casing 1 has a fixed bush 2 against which are located a spring 13 coiled around the stem 12 of the striker 10 and a second spring 14 bearing on a bush 3 slidable in the end of the casing. The punch 7 is guided in a nose part 6 and has limited movement permitted by a flange 8 on the punch engaging a bore 9. The upper end of the casing is closed by a cap 18 provided with a trigger in the form of a press pin 21 and cone 22 adapted to disengage either of two pivoted spring-pressed detents 16, 17 from a groove 15 in the striker stem 12. Loading of the device is effected by applying pressure on the casing until the groove 15 reaches the position to be engaged by detent 16 or detent 17, one or other of which is held in inoperative position by a cam on the interior of the rotatable cone 22 according as a lighter or heavier blow is required ; the punch point is then accurately positioned and the striker released by pressure on the trigger 21.
Patent GB-811474-A (GB)
Title: An evaporator for use in the distillation of sea water
IPC: C02F1/16
Filed: 1956-10-19
Abstract: <PICT:0811474/III/1> <PICT:0811474/III/2> In an evaporator, for use in the distillation of sea water on board ship, which comprises a shell divided by partitions 20, 22 into a boiler 14, a primary separating chamber 16 and a secondary separating chamber 18, the boiler contains a heat-exchanger 26 which is surrounded by a skirt 44 so that, when the evaporator is in operation, a mixture of steam and boiling brine rises up the space between the heat-exchanger and the skirt.  Some of the brine separates from the mixture at the top of the boiler, and the separated brine spills over the top of the skirt into the outer part of the boiler, this movement being facilitated by the baffle formed by the lower side of annular trough S in partition 20.  A mixture of steam and brine is discharged from the boiler through conduit 46, and is introduced tangentially into chamber 16 where the brine separates out, by centrifugal action, on the walls of the chamber and flows down to trough S.  The steam flows through opening 56 into conduit 54, and is conducted through volute 58 into chamber 18 where the residual entrained brine is separated out.  The dry steam then passes through conduit 88 to condenser 24, and the condensate is withdrawn via line 102, cooler 74 and line 110 to the fresh water tanks.  The brine, separated out in chamber 18, collects in sump S1 and then flows through a pipe (not shown) into the lower part of chamber 16.  The heat-exchanger 26, which has a deeply corrugated shell (see Fig. 2) is mounted on a chest 34, and is supplied with steam through conduit 36; steam-condensate being removed via conduit 40.  Sea water is continuously introduced into the system by pump 70; some of it is first used as cooling-medium in cooler 74 and condenser 24, and is then supplied in a preheated condition to boiler 14 via conduit 92 so as to maintain the level L. An equalizing pipe 68 extends between chamber 16 and the boiler. Under normal conditions there is no flow through pipe 68, but it provides means for quickly removing more water from the boiler than is provided for by carry-over, if transient operating conditions cause a relatively high pressure to exist in the boiler.  Hot brine is continually withdrawn from sump S through conduit 62; and part of the cold sea water, introduced into the system by pump 70, is mixed with this brine in order to cool it so that no flashing occurs in brine-pump 64.  Part of the sea water may be discharged through conduit 90 from an intermediate position in the cooling tubes of condenser 24.  In order to avoid scale formation in the boiler, the preferred rate of sea water flow to the boiler is approximately three times the rate of distillate production.  A portion of the cooled distillate is returned to sump 100 through conduit 104 in order to prevent flashing at the suction side of pump 72.  Specifications 674,385 and 752,237 are referred to.
Patent GB-875631-A (GB)
Title: Improvements in or relating to electronic amplifiers
Inventor: O'DONOVAN HARRY MAURICE
IPC: H03F1/30
Filed: 1957-10-14
Abstract: 875,631. Transistor amplifier circuits. PYE Ltd. Oct. 13, 1958 [Oct. 14, 1957], No. 32032/57. Class 40(6) A transistor amplifier connected in common emitter configuration has the emitter connected through one winding of a transformer to one side of the supply source and the collector electrode connected directly to the chassis and the other pole of the supply source the input signal being applied between the base and emitter electrodes. The transistor preferably has a metal body forming the connection to the collector and is both heat and electrically connected to the amplifier chassis thus providing a heat sink. Fig. 1 shows a power output stage of an audio frequency amplifier with the input signal being applied via transformer T1 between the emitter and base electrodes of the junction transistor TR, which is of the PNP type. The transistor is connected in a metal casing electrically connected to the collector which is directly connected to the chassis of the amplifier and to the negative side of power supply P. A D.C. blocking capacitor C is connected between the secondary winding of the transformer and the emitter electrode. Fig. 2 shows a multi stage amplifier comprising a driving stage and power amplifying stage with transistors TR1, TR2 respectively. The stages are connected in common emitter configuration and D.C. blocking condensers Cl, C2 are connected between the respective base and emitter electrodes and should be mounted to ensure low capacity between the body of the capacitors and the chassis to avoid attenuation at high frequencies. The collectors connected to the metal casing of the transistors are themselves collected directly to the chassis as is also the negative side of the power supply P. The amplifier may incorporate means for adjusting the overall response or feedback such as special impedances between the base and collector of one or more stages and a stabilizing network consisting of a shunt connected resistor capacitor may be arranged in series with one or more of the emitter connections. The amplifier may be of the push-pull type and NPN transistors may be used.
Patent GB-646070-A (GB)
Title: Manufacture of pyrimidylmercapto-carboxylic acids and derivatives thereof
IPC: C07D239/56
Filed: 1947-12-04
Abstract: 4-Oxypyrimidyl-(2)-mercaptocarboxylic acids of the general formula <FORM:0646070/IV (b)/1> (wherein R represents a hydrocarbon radical of 2-7 carbon atoms, e.g. an alkyl or aralkyl radical, and A represents a divalent aliphatic hydrocarbon radical of 1-4 carbon atoms, especially a methylene group), and salts, esters and amides thereof, are manufactured by reacting a 2-mercapto-4-oxypyrimidine of the general formula <FORM:0646070/IV (b)/2> with a halogencarboxylic acid Hal.A.COOH or a salt, ester or amide thereof, preferably in the presence of a diluent and an acid-binding agent, or by reacting a b - ketocarboxylic ester RCOCH2COOR1 (wherein COOR1 represents an esterified carboxyl group) with a pseudothiourea of the formula <FORM:0646070/IV (b)/3> or a salt, ester or amide thereof, or with thiourea and a halogencarboxylic acid Hal.A.COOH or a salt, ester or amide thereof, preferably in the presence of aqueous alkali.  Esters obtained by the foregoing processes may be hydrolysed, whilst acids obtained by the foregoing processes or by hydrolysis of the esters may be esterified or converted into salts, which in turn may be converted into salts with other bases, e.g. sodium salts may be treated with calcium chloride to form calcium salts.  Salts may also be formed with physiologically active bases, e.g. 2-aminothiazole. The products are useful as therapeutic agents (e.g. in hyperthyreosis) or intermediates therefor.  Specified starting materials, some of which are employed in examples, are: 2-mercapto-4-oxy-6-ethyl-, -n-propyl-, -isopropyl-, -n-butyl-, -isobutyl-, -tert.-butyl- and -benzyl-pyrimidine; propionyl-, butyryl-, n-valeryl-, isovaleryl-, g  : g  : g -trimethylaceto- and g -phenylaceto-acetic esters; chloracetic, a - and b -bromopropionic, a -bromo-n- and -iso-butyric and a -bromoisovaleric acids and their salts, esters (e.g. ethyl esters) and amides; carboxymethyl-pseudo-thiourea.
Patent GB-1530532-A (GB)
Title: Animal housing unit
IPC: A01K1/03
Filed: 1976-08-02
Abstract: The animal accommodation is used for keeping small animals, e.g. hamsters. It comprises a floor trough (1) and a removable, transparent attachment (4,5; 6,7), which is either inserted into the floor trough (Fig. 1) or is placed on the side wall (2) thereof (Fig. 2). The attachment has, on a frame (4; 6) consisting of, for example, wire meshing or glass, a solid-walled, smooth cover (5; 7), which has a passage-hole (21) which is spaced apart from the cover edge on all sides. The passage-hole, which is kept open, permits direct access to the animals within. The latter, however, cannot escape; even if they are able to climb up to the cover, they cannot reach the passage-hole, due to the smooth cover surface. <IMAGE>
Patent GB-648187-A (GB)
Title: Improvements in and relating to artificial teeth
IPC: A61K6/04
Filed: 1948-12-11
Abstract: 648,187. Artificial teeth. MYERSON, S. Dec. 11, 1948, No. 32093. [Class 81(ii)] An artificial tooth is formed of rigid material and is provided with a substantial number of intercommunicating cells which are filled with a hardened material such as an artificial resin. The rigid material may be a ceramic such as porcelain. In one application, Fig. 2, an upper incisor made of porcelain 15 has the upper and lingual parts made cellular by the introduction of comminuted material which may be removed by subsequent burning or dissolving, such as cork or powdered synthetic resin. The cells, which may vary between .005 in. and .015 in. in diameter, are subsequently filled by injection of an artificial resin such as methyl methacrylate. When such a tooth is later affixed to a plate of synthetic resin the resinous material in the root of the tooth unites homogeneously with the material of the plate and forms a rigid whole without the need for pins. In the embodiment shown the tooth is provided with translucent enamel layer 14 and the cellular formation is extended down to adjacent the lower edge to influence the colour effect. The invention may also be applied at the occlusal surface of a tooth to influence its hardness, and a cellular area may also be applied between the body of a tooth and the enamel layer to vary the visual characteristics. Specifications 505,063 and 545,026, [Group II], are referred to.
Patent GB-165013-A (GB)
Title: Improvements in liquid fuel furnaces
IPC: F23C1/02
Filed: 1920-09-14
Abstract: 165,013. McKean, J. G., and Jones, R. F. Sept. 14, 1920. No Patent granted (Sealing fee not paid). Liquid-fuel furnaces; doors.-In a furnace front of the kind described in Specification 1 6 0 , 6 9 8, adapted for either solid or liquid fuel, the fire-door is fitted with an air trunk k, which may be integral with it, and the burner g and an air-valve l are arranged concentrically within the air trunk. The outlet of the burner is to the rear of ports d in the top and sides of the fire-hole opening, which ports lead from an air heating chamber having tangential ribs or fins f.
Patent GB-912818-A (GB)
Title: Electromagnetic relay
Inventor: KENYON THEODORE WHITMAN
IPC: H01H50/30
Filed: 1960-09-19
Abstract: 912,818. Electromagnetic relays. CONNECTICUT VALLEY ENTERPRISES Inc. Sept. 19, 1960, No. 32100/60. Class 38 (5). A relay moving change-over contact has two resilient diverging contact arms and a member embracing the arms to limit the divergence. As shown, the relay terminals 11 ... 18 are sealed by insulating material 19 in a base 10 having recesses 23 in which legs 22 of a plate 20 are welded. The base 10 and plate 20 have sealed therein jewel bearings 28, 32 for a shaft 26 carrying the armature 25 which is biased clockwise, as shown in Fig. 4, by a torsion spring 34 having one end secured at 35 to the cup 31 of the lower bearing and the other end engaging an L-shaped pin 36 secured to the armature. Fixed contacts 44 of gold or silver are welded to beryllium copper-plates 45 welded to terminals 11, 14, 15, 18 and the moving change-over contact assemblies (Fig. 8) are welded to each of the terminals 13, 16. Each moving contact assembly comprises a resilient member 46 having welded thereto in superposed relation at 46a, two spring arms 47, 48 having oppositely facing contacts 49, 50 at their ends. The springs 47, 48 are biased in opposite directions so that the former is urged against member 46 and the latter is urged against turned-over flanges 51 on the end of the member 46. In the de-energized position (Fig. 4), a pin 38 on the armature engages a stop 42 mounted between flanges 21 of the plate 20 and the bias of the resilient member 46 is such that contacts 44, 49 are closed and the arm 47 is slightly spaced from the free end of the member 46. When the relay is energized the armature is attracted to poles 52, 53, and insulating leads 40, 41 mounted on pin 37, 38 secured to the armature move the members 46 to open contacts 44, 49 and close the other contacts 44, 50 with overtravel so that the arms 48 are slightly spaced from the flanges 51 (Fig. 5, not shown). A cover 64 is sealed to the base 10 and to the plate 20 and an exhaust tube 66 may be used to evacuate the chamber so formed which may also be filled with an inert gas. Poles 52, 53 are sealed in the plate 20 and surrounded by coils 67, 68 with the upper ends of the poles magnetically coupled by a plate 69. A cover 70 is also sealed to the base 10 and the space above the plate 20 may be filled with a plastic insulating material.
Patent GB-366020-A (GB)
Title: Improvements in and relating to methods of testing fire-damp
Filed: 1930-10-25
Abstract: In a device for indicating the presence of firedamp in the atmosphere of the type in which a luminous cap is formed when a certain proportion of firedamp is present, contacts to which a potential is applied are provided in the space where the cap is formed so that a discharge occurs when the cap envelopes the contacts, and this discharge may complete an indicating circuit. The luminous cap is preferably obtained by means of a heated filament or a spark gap or series of such gaps in a chamber having a portion of its walls made of porous material and a portion of transparent material, so that the filament etc. is visible.  When a spark gap is used, one of the additional contacts may be dispensed with, the discharge occurring between the single additional contact and one of the spark gap contacts.  The device may be operated continuously or intermittently by automatic means, and may be combined with a miner's lamp.  The Provisional Specification also describes the use of a heated filament or a spark gap for producing the luminous cap, without the use of additional contacts.
Patent GB-1356632-A (GB)
Title: Multiplayer printed-circuit boards
Inventor: NEWSAM W
IPC: H01R12/51
Filed: 1971-07-09
Abstract: 1356632 Printed circuits PLESSEY CO Ltd 6 July 1972 [9 July 1971] 32251/71 Heading H1R A multilayer printed circuit board is provided with two sets of plated through holes, each one of the holes of one set being linked by an exposed track to one of the holes of the other. All the connections to the internal layers of circuitry are made the holes of one set and components are connected by soldering in the holes of the other set. Changes to the circuitry may be made by breaking selected exposed linking tracks and providing alternative wired connections between the component terminals. The board may be a mother board, e.g. a computer back plane, the components being edge connectors for the daughter boards. The alternative connections are preferably made by dry wrapping.
Patent GB-174483-A (GB)
Title: Improvements in talking machine motors
IPC: G11B17/00
Filed: 1920-11-16
Abstract: 174,483. Goold, R. L., (Brunswick-Balke-Collender Co.). Nov. 16, 1920. Actuated or applied by speed regulators; acting on flat sides of drums; drums shifted to act on fixed brake surfaces.-The governor for a talking machine spring-motor comprises a sleeve 36 mounted loosely on the shaft 32 and carrying a drum 37 at one end and a collar 38 at the other. Springs 39 carrying weights 40 pass through holes in the drum 37 and are fixed to the collar 38 and to'a collar 39<1> fast on the shaft 32. A speed-control lever 41 is pivoted at 42, and one arm thereof carries a fork 43, pivoted at 43<1> and having two projecting fingers 44 carrying pads adjacent to the drums 37. The other arm of the lever 41 is divided to form fingers 46, 46<1> which embrace a pin 47 provided with a knurled head 48. The finger 46<1> travels in a spiral groove 50 in the pin 47 being held in position by the other finger 46. By turning the head 48, the lever 41 may be moved under the controlling action of a spring 49 to alter the position of the pads relative to the drum 37.
Patent GB-1437138-A (GB)
Title: Method of increasing sexual potency
IPC: A61K38/095
Filed: 1973-07-06
Abstract: 1437138 Increasing sexual potency SANDOZ Ltd 6 July 1973 [10 July 1972 25 Oct 1972] 32316/73 Heading A5B Sexual potency in the human male is increased (other than in the treatment or prevention of disease) by administering oxytocin or desamino oxytocin either orally, e.g. as buccal or oral tablets, or parenterally.