baber/WOPTO huggingface dataset:
Patent GB-623198-A (GB)
Title: Apparatus for the continuous vulcanization of rubber-insulated electrical conductors
IPC: B29C48/05
Filed: 1946-07-25
Abstract: 623,198. Vulcanizing long lengths. PLANER, V., and PLANER, G. V. July 25, 1946, No. 22126. [Class 70] Apparatus for vulcanizing rubberinsulated cables and wires comprises a vulcanizing chamber filled with vulcanizing fluid, containing two or more rollers arranged in pairs, one member of each pair being vertically above the other, and provided with grooves over which the cable or wire is passed. A vulcanizing chamber A contains a frame B in which two grooved rollers C, D are mounted, C being vertically above D, and the rubberinsulated conductor to be vulcanized enters the chamber A through an inlet tube E, passes over the rollers C, D in several loops, the number depending on the number of grooves on the rollers, and leaves through the outlet tube F. The vulcanizing medium may be a low melting point metal alloy, asphalt, bitumen, glycerol, montan wax, or a mixture of waxes, and gaseous media such as steam under pressure may be employed. The chamber, which may be heat insulated by materials such as asbestos and glass wool, is preferably heated by electricity or gas and provided with thermostatic control. The pressure on the indiarubber may be varied by adjusting the level of fluid in tubes E and F which may be exchangeable for tubes of different lengths, and additional pressure may be applied from, e.g. a hydraulic press. The vulcanization may be accelerated by using high frequency heating, in which the wire or cable and one or both of the rollers may be made the electrodes of a condenser supplied with high frequency alternating current, or the wire or cable may be passed between two parallel plates constituting the electrodes of the condenser and situated inside the vulcanizing chamber.
Patent GB-317045-A (GB)
Title: Improvements in metal sleepers for railways
IPC: E01B23/12
Filed: 1929-07-19
Abstract: 317,045. Vereinigte Stahlwerke Akt.- Ges. Aug. 9, 1928, [Convention date]. Sleepers, metal, for excavator tracks, are made from a hollow closed tube a, either seamless drawn or welded, and reinforced by a central web b formed out of the tube itself, Fig. 3, or consisting of a separate bar d, Fig. 9, or tube e, Fig, 10. The web may be welded, as at c.
Patent GB-699091-A (GB)
Title: Improvements in plant and process for the manufacture of water gas or gas consistinglargely of carbon monoxide and hydrogen
Inventor: RUSCHIN KURT
IPC: C10J3/00
Filed: 1950-09-09
Abstract: 699,091. Water gas. POWER-GAS CORPORATION, Ltd. Nov. 16, 1951 [Sept. 9, 1950], No. 22260/50. Class 55(i) In a "blow and run" water gas process, the blow gases leaving the top of the generator are divided into two streams, one stream passing through a combustion chamber and a preheater in heat exchange relation with the air passing to the generator base and the other stream passing to a second combustion chamber and a waste heat boiler. In the form shown, the apparatus consists of a generator 10 connected by pipes 26 to combustion chambers 11 and 12, the outlet from chamber 11 leading to a preheater 14 and stack valve 15 whilst the outlet from chamber 12 leads into a waste heat boiler 16 and stack valve 17. The operating cycle consists of a blow period followed by up run and then down run gas-making periods. During the blow period, a fan 18 delivers primary air through the preheater 14 and ducts 20 and 24 to the generator base. It also delivers secondary air through duct 21 to the combustion chambers 11 and 12 and tertiary air, if required, to the boiler inlet through duct 22. During the up run, steam from a main 23, with or without hydrocarbons in gas or liquid form which are introduced into the steam flow through valves 70 and 71, enters the generator through a pipe 24, the up run gas discharging through duct 26 and valves 55 and 45 to the seal box 13.. Part of the up run gas may be diverted through chamber 11 and preheater 14 to reach the seal box through a pipe 59, the up run steam being passed through the preheater 14 in heat exchange relation with the gas. During the back run, steam, with or without gaseous or liquid hydrocarbons introduced through valves 70 and 73, is passed through pipe 25 into the base of combustion chamber 12 wherein it is superheated before passing through pipe 26 into the top of the generator. Back run gas passes from the generator base through pipes 24 and 27 to the seal box 13.
Patent GB-207234-A (GB)
Title: Improvements in telephone receivers
IPC: H04R13/02
Filed: 1922-08-16
Abstract: 207,234. Jones, T. L. Aug. 16, 1922. Magnetic instruments.-In a telephone receiver having circular concentric magnetic poles with the energizing winding between them, the permanent magnet C is a bar having a consequent pole in the centre to which is attached the core D. An insulating block E, formed integral with a spool F for the coil G, is mounted on this magnet, and the outer pole H<1> is formed as part of a shield H the ends of which contact with the permanent magnet C. The magnetic structure is fastened together and into the case by screws J, insulated from the case A, the magnet C and the shield H and forming terminal screws for the winding G. Both poles D, H<1> may be split longitudinally to avoid eddy current losses.
Patent GB-812245-A (GB)
Title: A substituted benzoic acid and salts and esters thereof
IPC: C07C65/28
Filed: 1957-07-15
Abstract: The invention comprises: (i) compounds of the general formula: <FORM:0812245/IV (b)/1> where R is hydrogen, a pharmacologically acceptable cation or a hydrocarbon radical containing 1 to 9 carbon atoms; an ester of 3,5 - di - n - propyl - 4 - hydroxy benzoic acid, wherein the hydrocarbon radical of the ester group contains 1 to 9 carbon atoms; (ii) a process for the preparation of compounds of the general formula (I) wherein (a) an ester of 3,5 - diallyl - 4 - hydroxybenzoic acid is hydrogenated in the presence of a hydrogenation catalyst to produce the corresponding ester of 3,5-di-n-propyl-4-hydroxybenzoic acid which is then reacted with an allyl halide in the presence of an alkali to produce the corresponding ester of 3,5-di-n-propyl-4-allyloxy-benzoic acid and if desired this is saponified to produce the acid, or (b) an ester of 3,5-di-n-propyl-4-hydroxybenzoic acid is saponified and acidified to produce the free acid which is then reacted with an allyl halide in the presence of an alkali to produce allyl-3,5-di-n-propyl-4-allyloxybenzoate, and this is hydrolysed to produce 3,5 - di - n - propyl - 4 - allyloxybenzoic acid; and (iii) a process for the manufacture of an ester of 3,5 - di - n - propyl - 4 - hydroxy-benzoic wherein an ester of 3,5 - diallyl - 4 - hydroxy-benzoic acid is hydrogenated in the presence of a hydrogenation catalyst.  In examples: (1) ethyl 3,5-diallyl-4-hydroxy-benzoate is hydrogenated in the presence of platinum dioxide catalyst to give ethyl 3,5-di-n - propyl - 4 - hydroxybenzoate; (2) ethyl 3.5 - di - n - propyl - 4 - hydroxybenzoate is treated with allylbromide to give ethyl 3,5-di-n-propyl-4-allyloxybenzoate; (3) ethyl 3,5-di-n - propyl - 4 - allyloxybenzoate is saponified with potassium hydroxide and on acidification yields 3,5 - n - propyl - 4 - allyloxybenzoic acid.  In place of the ethyl ester used as starting material in (1) the methyl, isopropyl, n-butyl, n-hexyl, n-octyl cyclopentyl, cyclohexyl, benzyl, allyl, phenethyl, or cinnamyl esters may be used to yield the corresponding saturated esters, in the case of the allyl and cinnamyl esters, the n-propyl and 3-phenylpropyl benzoates being formed respectively.  Further, these products may be used as alternative starting materials in (2) and (3) to yield the correspondsaturated esters of 3,5-di-n-propyl-4-alloxy-benzoic acid and the same free acid as in (3).  The free acid formed in (3) either as such or by first converting it into the acid chloride or bromide may be esterified with methyl, ethyl, isopropyl, n-butyl, n-hexyl, n-octyl, cyclopentyl, cyclohexyl, benzyl, allyl, phenethyl or cinnamyl alcohol to form the corresponding esters, or the free acid itself may be reacted with sodium or potassium hydroxides, calcium oxide, sodium carbonate, aluminium oxide, ammonia, or substituted ammonium compounds, such as methyl-, ethyl-, and dimethylamines to form the corresponding salts of the acid.
Patent GB-828872-A (GB)
Title: Improvements in shutters for controlling animal feeding troughs
IPC: A01K1/00
Filed: 1957-07-15
Abstract: 828,872. Animal feeding troughs. BRIGGS, L. J. July 15, 1958 [July 15, 1957], No. 22418/57. Class 5(2). A protective shutter for animal feeding troughs comprises a metallic framework pivoted in appropriate position to the animal pen walls or to suitable supports in a manner insulating it from those walls or supports, the framework being electrified by intermittent high voltage / low current pulses in the manner of electrified fencing. As shown, a feeding trough 3 extending between the side walls 1 of a pig pen and located between the pen and a feeding passage 2, is protected by a framework consisting of metal tubes 4, 5 interconnected by steel flats 6, 7, 8, the whole being covered by a steel wire mesh and electrically connected to an intermittent high voltage/low current generator. The upper tube 4 is secured by clips 10 to pivot pins 11, 12 carried by brackets 15 on the pen side walls, insulating sleeves 13 and spaces 14 being provided as shown. A latch bar 16 is mounted in insulated slotted fittings 19, 20 fixed to the flats 6, 8 respectively, the sleeved ends 17, 18 of the bar being engageable in one of a number of slots 26 in brackets 25, Fig. 5, fixed to the pen side walls so that the shutter can be located in one of the three positions A, B or C shown in Fig. 1.
Patent GB-640790-A (GB)
Title: Improvements in and relating to electric capacitors
IPC: H01G4/22
Filed: 1948-08-25
Abstract: 640,790. Condensers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 25, 1948, No. 22421. Convention date, Aug. 30, 1947. [Class 37] A capacitor has a dielectric comprising in part a halogenated nitro aryl compound and a quantity of absorbent material 13, 14 external to the capacitor assembly but within the assembly container. Silica gel, fullers earth, bentonite, diatomaceous earth or mixtures thereof are specified as absorbents and tetrachlor ortho nitro diphenyl or a blend with pentachlor diphenyl are specified as dielectric compounds.
Patent GB-627849-A (GB)
Title: Improvements in or relating to holders for picture assemblies
IPC: A47G1/14
Filed: 1946-07-27
Abstract: 627,849. Stands. HARRIS, G. M. July 27, 1946, Nos. 22432 and 30218. [Class 52 (iii)] A card or like stand consists of two triangular loops 11, 12 of wire or strip material connected together as at 14 and capable of being sprung apart at their outer corners so as to grip the edges of the article 13 to be supported, The parts may be foldable or disconnectable to facilitate packing.
Patent GB-392393-A (GB)
Title: Heat insulating material and method of making it
IPC: C08L97/02
Filed: 1932-08-10
Abstract: A plastic composition comprises plastic fatty clay, paper, sawdust and bast fibres.  Cement or crushed asbestos may be added to the mixture which is kneaded with the desired quantity of water.  The quantities specified by volume are 0,8-1,3 parts of plastic fatty clay, 1,2-2,2 parts of milled paper, p  4,5-8,0 parts of sawdust, 1,5-2,5 parts of bast fibres with or without 1,5-2,5 parts of asbestos or 2,5-3,5 parts of cement.  For use at high temperatures, a primary layer consisting of a mixture of 1 part of crushed asbestos, 5 parts of magnesia, and sufficient water is used.
Patent GB-502407-A (GB)
Title: Improvements in electrical signalling systems
IPC: H03F3/32
Filed: 1937-08-16
Abstract: 502,407. Valve generating circuits; electric control systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and ROSEBY, P. N. Aug. 16, 1937, No. 22500. [Class 40 (v)] [Also in Group XXXVIII] A high-frequency generator for signalling over supply mains comprises a pair of generating valves V1, V2 connected in a push-pull oscillatory circuit and a plurality of pairs of amplifying valves connected in parallel each pair being connected in push-pull, any tendency in the amplifying valves to self oscillation being overcome by small chokes CH in the anode circuits. In the arrangement shown, the high-frequency current is fed to a hightension network XYZ over the transformer MT coupling it to a low-tension network 1, 2, 3, N, the circuit of the secondary winding of the output transformer OT of the amplifier being connected to balanced windings of transformer MT and containing a condenser C3 to prevent the passage of the supply frequency. All the valves are of the screen-grid type and are fed with operating potentials from the low-tension network. The high-frequency currents may be amplified, or relayed at the same or a different frequency, at the receiving station, and if the frequency is the same means are provided for preventing the amplifier or auxiliary oscillator from becoming self-sustaining. Specifications 435,564 and 490,936, [both in Group XXXVIII], are referred to.
Patent GB-1269342-A (GB)
Title: Alloy steel
IPC: C22C38/42
Filed: 1969-05-02
Abstract: 1,269,342. Steel. ARMCO STEEL CORP. May 2, 1969 [May 15, 1968], No. 22502/69. Heading C7A. An alloy steel comprises:- C 0À01-0À06% Cr 11-13% Ni 3À7-10% Cu 0-5% Mn up to 0À5% Nb up to 0À25% N up to 0À025% P up to 0À03% Si up to 0À4% S up to 0À02% and Ti up to 0À15% the balance being Fe. The steel may be solution treated at 1900‹F. oil quenched, aged at 1100‹F. and air cooled.
Patent GB-833318-A (GB)
Title: Improvements in speed governing devices for fuel injection internal combustion engines
IPC: F02D1/00
Filed: 1958-07-15
Abstract: 833,318. Centrifugal governors. BOSCH G.m.b.H., R. July 15, 1958 [July 18, 1957], No. 22571/58. Class 57. A speed governing device for fuel injection internal-combustion engines comprises centrifugal weights 4 acting on a sleeve 7 connected by a lever 27 and a link 28 to the fuel pump control-rod 28, a governor return spring 21 whose loading and effective leverage are simultaneously adjustable by movement of a setting lever 18 and means actuated by the lever 18, to vary the position of a pivot 30 of the lever 27 and thereby the ratio of movement of the rod 29 and the sleeve 7 so that when the lever 18 is set for idling the ratio of the movement of the rod 28 to that of the sleeve 7 is a minimum. A pin 25 on the sleeve 7 engages a slot 26 in the lever 27 and the pivot pin 30 engages a slot 33 in a bell-crank lever 34 and also a slot 31 in a lever 32 pivoted at 38 and connected to a member 40 carrying a rod 41 loaded by a spring 44. The spring 21 is tensioned between a lever 12 pivoted at 14 and engaging a pin 10 on the sleeve 7 and a lever 17 secured at one end to a fixed shaft 16 to which is also attached the setting lever 18. In the position shown in Fig. 1, the lever 18 abuts a maximum speed stop 24. Clockwise movement of the lever 18 progressively reduces the tension and leverage of the spring 21. When the lever abuts the idling speed stop 48 the rod 41 is pushed downwards against the spring 44 by the lever 18 to thereby move the lever 27 and alter its transmission ratio a:b to reduce the movement of the rod 29 for a given movement of the sleeve 7. The rod 29 may be moved to the stop position by rotating the bell-crank arm 35 in the direction of arrow 50.
Patent GB-993526-A (GB)
Title: A dry shaver
IPC: C07D307/62
Filed: 1961-06-22
Abstract: 993,526. Dry shavers. J. GODEFROY. June 22, 1961 [June 27, 1960], No. 22603/61. Heading B4B. A dry shaver comprises an inner cutter 18 which has cutting blades 21 and is reciprocated longitudinally within an arcuate shear plate 23 which is oscillated about an axis parallel to the direction of movement of the inner cutter, and moves towards and away from the skin in a massaging effect which also promotes close shaving. Supports 14, screwed to the casing 1, have slots 16 to receive pins 17 on the inner cutter to guide reciprocation of the cutter which is driven through a plate 36 and eccentric 35 from the rotated drive shaft 6. The cutter is urged towards the shear plate 23 by springs 22 and the pin-and-slot connection 16, 17 has sufficient play for tipping of the cutter to follow the shear plate when the plate is oscillated by engagement of a slot 26a in the frame 26 of the plate by a projection from an eccentric lever 13 journalled on an eccentric pin 11 on a worm wheel 10 rotated by the drive shaft. The shear plate is riveted or screwed with a small clearance to the frame 26 which has an aperture into which a pin 24 on a support 14 projects and a pin 31 mounted on a leaf spring 30 passes through apertures in the frame and in the second support 14 to form the axis of oscillation 37 or 37a, as shown in Fig.s 6 and 7, for the shear plate.
Patent GB-643345-A (GB)
Title: Improvements in and relating to heat repellant paints, cements and the like
IPC: C04B28/26
Filed: 1947-08-15
Abstract: A heat repellent paint comprises an alkaline silicate solution in admixture with ferric oxide and an inert filler, the proportion of ferric oxide being 20 to 70 per cent by volume of the combined ferric oxide and filler.  The preferred proportions of ferric oxide is 25 to 50 per cent, these proportions being used in a sodium silicate solution consisting of 1 part of silicate to 3 parts of water.  Talc is the preferred filler.  In examples: (1) red ion oxide and talc are made into a paste with sodium silicate solution.  There may also be present (2) calcium fluoride, (3) calcium fluoride and felspar and (4) zinc oxide and felspar.  The compositions may be used to impregnate fire bricks, fire-grates, furnaces, kilns and heating plants generally, or be applied to any surface or material to prevent loss or penetration of heat.ALSO:A heat-repellant cement comprises an alkaline silicate solution in admixture with ferric oxide and an inert filler, the proportion of ferric oxide being 20 to 70 per cent, preferably 25 to 50 per cent, by volume of the combined ferric oxide and filler. A preferred solution comprises 1 part of sodium silicate to 3 parts of water, while tale is the preferred filler.  In examples: (1) red iron oxide and talc are made into a paste with sodium silicate solution and there is also present (2) calcium fluoride; (3) calcium fluoride and felspar and (4) zinc-oxide and felspar. The compositions may be used to impregnate fire bricks, fire grates, furnaces, kilns and heating plants generally or may be applied to any surface or material to prevent loss or penetration of heat.
Patent GB-1316703-A (GB)
Title: Automatic pressure relieving pressurized dispensing
IPC: B65D83/16
Filed: 1971-04-19
Abstract: 1316703 Pressurized dispensing containers DART INDUSTRIES Inc 19 April 1971 [2 March 1970] 22848/71 Heading F1R In order to relieve excess pressure in a pressurized dispensing container, the valve actuating stem 19 is arranged to abut an actuating member 18, upward movement of which in its inoperative position is prevented by engagement with a lower member 17, so that if the cup 11 carrying the valve 12 is forced upwardly by excess pressure the valve stem 19 is actuated to open the valve. The cup member 11 may return to its original position on relief of excess pressure or remain in a deformed condition; in a further embodiment the cup member is arranged to snap between a valve closed to a valve open position and vice versa. Opening pressure may be controlled by adjusting clearance 34 between the valve stem 19 and actuator 18.
Patent GB-168883-A (GB)
Title: Improvements in the construction of rotors for high speed dynamo-electric machines
IPC: H02K3/51
Filed: 1921-08-29
Abstract: 168,883. Akt.-Ges. Brown, Boveri, et Cie. Sept. 9, 1920, [Convention date]. Coils and conductors; field magnets, dampers on poles of.-The centrifugal force in rotors of high-speed dynamo-electric machines in which the ends of the coils are surrounded 'by metal caps is diminished by forming the metal caps of a considerably smaller diameter than that of the rotor body. Fig. 1 shows a rotor a the coils b of which are bent inwardly and secured by caps c. The slot wedges d are extended into the coil caps c to form a squirrel-cage winding for use either as a starting or damping winding.
Patent GB-1481253-A (GB)
Title: Gas leak detector
IPC: F23N5/18
Filed: 1975-05-23
Abstract: 1481253 Gas leak detector PRIMUSSIEVERT AB 23 May 1975 [31 May 1974] 22945/75 Heading G1S Gas from a supply 16, Fig. 1, passes through a leak detector 1 and plumbing (not shown) to consumption appliances 13 via a connection 15  and a pipe 18 leading into a windowed check sleeve 19 which in the preferred embodiment is pivotable in the body 1 about connections 15, 26 but is normally held vertically against a stop 30, Fig. 2, by a resilient torque tube 8. The check sleeve holds a quantity of fluid whose level is normally below the exit of pipe 18 as shown, and the gas exits from the container through a bore 25, the tube 8 and connection 27 leading to the plumbing and valves and to the appliances 13. In operation the supply from 16 is maintained but the appliances 13 are shut off and the fluid level in the check sleeve is brought above the opening of the pipe 18, e.g. by tilting the sleeve manually to a horizontal leak testing position, Fig. 3, in which tilted position the tube 8 is twisted and any gas escaping from the plumbing system may be seen as bubbles in the fluid. In a modification the pipe 18 is straight and the lower part of 19 is formed by a resilient hollow ball so that the fluid may be squeezed up into 19 instead of the sleeve having to be tilted.
Patent GB-1489427-A (GB)
Title: Lever control assembly
IPC: G05G1/04
Filed: 1974-09-18
Abstract: 1489427 Linkwork; Bowden mechanisms; change-speed control TELEFLEX Inc 18 Sept 1974 [18 Sept 1973] 22951/77 Divided out of 1489426 Headings F2D and F2K The subject-matter of this Specification is identical with that described in parent Specification 1,489,426 but the claims relate to a control lever assembly with a plurality of connection means for alternative connection to means to be controlled.
Patent GB-685196-A (GB)
Title: Coffee maker
IPC: A47J31/053
Filed: 1951-10-03
Abstract: 685,196. Electrically-heated coffee pots. LANDERS, FRARY & CLARK. Oct. 3, 1951 [June 7, 1951], No. 23015/51. Class 39(iii) [Also in Group VI] In an electrically heated coffee pot, the heating element comprises a grid 28 sandwiched between mica sheets 29 held between metal plates 26, 31. The heater is a press-fit into a hollow formed in the base of the liquid container, which is supported on a hollow base 11:
Patent GB-601040-A (GB)
Title: Improvements in or relating to foundation garments
IPC: A41C1/06
Filed: 1945-09-06
Abstract: 601,040. Foundation garments. RESISTA CORSET CO. Sept. 6, 1945, No. 23027. Convention date, March 23. [Class 141] A combined corset and brassiere comprises back and side sections common to both garments, and front corset and brassiere sections which overlap and are interconnected by an elastic tape, so that these two sections can move relatively to one another as the body moves. As shown, the garment comprises a back section 10 and side sections each consisting of an inelastic panel 15 and a panel 12 stretchable laterally. A side opening comprises hooks and eyes 21 and a sliding fastener 19 with a hook and eye 20. The front corset section comprising panels 22, 23 extends upwardly at its sides to a point above the waistline 14 and is curved upwardly at its centre to a point 22a which lies between the breasts in wear. This section is strengthened by an inner panel 26 provided with stiffeners 28 which terminate substantially below the upper edge of the panel. The front brassiere section comprises breast pockets 29 and a band portion 30 which extends downwardly to the waistline 14 at its sides, is arched upwardly at its centre, and substantially overlaps the upper end of the panel 22. An elastic band 31 is connected between the upper point 22a of the panel 22 and the central upper point of the breast pockets. The shoulder straps are inelastic but have short elastic tapes 33 at the back. Specification 504,985 and U.S.A. Specification 2,106,021 are referred to.