baber/WOPTO huggingface dataset:
Patent GB-718105-A (GB)
Title: Liquid fuel supply systems for internal combustion prime movers
Inventor: HARRIS THOMAS ALFRED
IPC: F02C7/22
Filed: 1951-08-27
Abstract: 718,105. Jet propulsion engines; gas turbines. LUCAS (INDUSTRIES), Ltd., J. Aug. 19, 1952 [Aug. 27, 1951), No. 20114/51. Class 110(3) [Also in Groups XI and XXIX] A gas turbine or jet propulsion engine fuel system comprising a pump supplying fuel to a number of nozzles arranged in parallel each with a spill duct for returning excess fuel to the pump, has a throttle valve associated with each nozzle for controlling the spill flow and a by-pass valve, actuated by a pressure difference across a restricted orifice in a duct leading to one of the nozzles, to divert fuel from between the pump and the nozzles. The burner nozzles a are supplied with fuel from an electrically driven fuel pump f through ducts e restricted orifices c and ducts b. Each nozzle has a spill duct d connected to a main spill duct h. The supply ducts b each have an isolating valve i and the spill ducts d, a throttle valve j. The valves i, j are interconnected by a link k and all the throttle or isolating valves are interconnected by a link m. By the provision of lost motion in the interconnecting means between the throttle and isolating valves, the nozzle can be brought into or put out of action successively. The link in is manually controlled by a lever n. The by-pass valve comprises a closure member o attached to a spring loaded piston r. One end of the cylinder t is connected to the fuel supply duct e and the other end to a passage u which terminates in a valve seating v. The flow through the valve seating v from the duct e and thus the pressure on the right hand side of the piston r is controlled by a spring loaded flexible diaphragm x the movements of which are controlled by the pressure drop across one of the restrictions c. Increase of this pressure drop will cause the pressure on the right hand side of the piston r to increase and the valve member o to open and reduce the flow to the nozzles a. Each isolating valve i is arranged to be fully opened by a small movement of the valve i and to remain open during further movement of the valve j. There may be provided with some of the isolating or throttle valves or their connecting means, switches 12 for controlling the speed of the motor g so that when some of the nozzles are cut out the speed of the motor is reduced. An alternative method of controlling the pressure on the righthand side of the piston r by the diaphragm x is also described. In this arrangement, a pivoted lever actuated by the diaphragm x diverts fuel from the chamber on the left hand side of the diaphragm x either to the right-hand side of the piston r or to the suction of the pump.
Patent GB-592218-A (GB)
Title: Improvements in and relating to adhesive sheets or tapes
IPC: C09J7/21
Filed: 1943-12-02
Abstract: A vulcanizable mass comprises rubber or reclaim, a tackifying resin such as cumar, optionally a softening agent such as lanoline or pine tar, and an accelerator such as Butyl 8 which requires a high temperature to effect vulcanization.  The mass is dispersed in a solvent such as toluene or xylene and knife spread on a backing to form an adhesive tape.  Partial vulcanization may occur when the tape is heated to remove solvent.  The tape is used as a masking means in painting operations involving baking or high temperature drying, during which operation vulcanization is completed, with the result that the tape can eventually be removed from the surface to which it was applied without offsetting.  An accelerator such as tetraethyl thiuram disulphide which does not effect vulcanization until a specific temperature is reached may be used in conjunction with Butyl 8.
Patent GB-475483-A (GB)
Title: New and improved method of making nut blanks
IPC: B21K1/64
Filed: 1937-07-21
Abstract: 475,483. Forging nuts. RUSSELL, BURDSALL, & WARD BOLT & NUT CO. July 21, 1937, No. 20179. Convention date, Aug. 26, 1936. [Classes 83 (ii) and 83 (iv)] Dies.-A method of producing hexagonal nut blanks from blanks of substantially square section consists in submitting the square blanks to pressure on the four corners. The hexagonal blanks produced are thicker than the initial blanks and subsequently are first partly pierced in closed dies and then completely punched out. A similar method of treating rhombic shaped blanks is disclosed in U.S.A. Specification 1,957,952. In Fig. 1 is shown the apparatus used with the square blank 1 in its initial shape, one pair of opposed dies 5 having straight working faces 6 and the other pair 3 having angular faces 4, the dies all having overhanging lips to constrain the flow of metal. In Fig. 8 is shown the blank 7 partly pierced by a punch 11, a conical projection 10 preferably being placed beneath the work. Fig. 10 shows the completion of the punching.
Patent GB-736087-A (GB)
Title: Improvements in electrical protective equipment
Inventor: RYDER CLIFFORD
IPC: H02H3/30
Filed: 1952-08-11
Abstract: 736,087. Protective cut-out arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 11, 1953 [Aug. 11, 1952], No. 20186/52. Class 38 (5). In an earth-fault protective arrangement for a winding 1 or line section, a relay 7 has an operating winding 8 energized directly from a current transformer 6 in the earth connection 3 and a restraining winding 9 energized from the winding 13 of a transformer 11, which winding is connected across current transformer 5 in the lines 2, the winding 8 having more effective turns than 9. A further winding 12 may be provided when a high neutral resistance 4 is used. On internal faults, the transformer 6 energizes the winding 8 to produce tripping, the winding 12 opposing any restraint which may be provided by the transformer 5 and winding 13. On through earthfaults, the winding 9, 13 provide adequate restraint against possible operation by spillover currents in the winding 8 due to transformer inequality. On phase-faults, no current flows in transformer 6 and, again, inequality in transformers 5 produces an overpowering effect in the restraining winding. In the T- feeder system of Fig. 2, current transformers 26 in the feeders 21, 22 and at the section ends 20 are each connected directly across operating windings 24, and restraining windings 25 are connected across a circulating-current circuit 27, 28, the operation being the same as before.
Patent GB-1253483-A (GB)
Title: Concrete transit mixer vehicle with forward discharge mechanism
IPC: B28C5/42
Filed: 1970-04-28
Abstract: 1,253,483. Endless conveyer belt apparatus for feeding concrete. CHALLENGE-COOK BROS. Inc. 28 April, 1970 [1 May, 1969], No. 20472/70. Heading B8A. [Also in Division B1] Endless conveyer belt apparatus for feeding concrete discharged from a rotatable concrete mixing drum 11 mounted on the chassis 10 of a vehicle comprises an endless conveyer belt 30 having one end 32 mounted on the chassis beneath the discharge opening of the drum and extendable beyond the front of the vehicle, and a shoot 31 pivotally mounted at the discharge end of conveyer belt 30 and arranged to be elevated or lowered by power-operated means, e.g. an hydraulic cylinder. The conveyer belt 30 may either be fixedly mounted, or mounted so as to be swung from side-to-side as well as being raised or lowered. The shoot may be folded into sections for stowage on the vehicle whilst it is in transit. In a modification, a second endless conveyer belt may be used instead of the shoot.
Patent GB-617789-A (GB)
Title: Improvements in or relating to ballet shoes
IPC: A43B5/12
Filed: 1946-07-09
Abstract: 617,789. Ballet shoes. GAMBA, V. L. July 9, 1946, Nos. 20522 and 20523. [Class 17 (ii)] The toe end of the upper of a ballet shoe is formed by an insert or gusset of kid leather of the width of the toes let into and secured at its edges to the material of the upper 11. The gusset extends at 17 under the toe and at 16 to the outer sole. Shaping of the upper at the toe and pleating is thus reduced or avoided. A stiffener is inserted behind the gusset. Specification 117,068 [Class 17 (ii)], is referred to.
Patent GB-960233-A (GB)
Title: Improvements in or relating to optical microscopes
IPC: G02B21/00
Filed: 1961-06-07
Abstract: 960,233. Microscope attachments. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. June 7, 1961 [June 7,1960], No. 20527/61. Heading G2J. A device for attachment to the eyepiece tube 1 of a microscope so as to increase the magnification comprises a housing 7 which is adjustably secured to eyepiece tube 1 by a clamping sleeve 2. In an upper chamber 15 of the housing is an objective mounting 8 which is axially movable by engagement of a pin 11 thereon with a rotatable wedge-shaped ring 10. Chamber 15 communicates with a lower chamber 16 which receives light from the body tube of the microscope and contains a frosted or ground glass disc 3, this disc being disposed in the image plane of the usual microscope objective. Disc 3 is carried on a rotatable shaft 12, mounted at 18 in jewelled bearings, and has attached thereto a vaned impeller 19 on to which is directed a jet of compressed air from a pipe 17 so as to rotate disc 3. In alternatives, objective 8 is fixed and shaft 12 carrying disc 3 is adjustable by mounting the shaft in an axially movable slide operable from outside housing 7, and shaft 12 and disc 3 may be rotated or oscillated in one plane by an electromagnetic device.
Patent GB-379472-A (GB)
Title: Preserving the taste of bottled beer by treating the bottles
IPC: B65D75/66
Filed: 1931-07-18
Abstract: 379,472. Packing beverages ; bottles. SANDT, H. VAN DE, 58, Freiligrathstrasse, Dortmund, Germany. July 18, 1931, No. 20623. [Classes 94 (i) and 125 (i). In order to preserve the qualities of bottled beer, the bottles are provided with coverings which prevent short wavelength light rays or long wavelength heat rays from reaching the contents. As shown, the bottle 1 is enclosed in a covering 2 of dark coloured cellulose hydrate foil, a tearing thread 3 being added to facilitate removal. In another form, the covering consists of a layer of coloured gelatine applied to the surface of the bottle by spraying. In order to prevent heat rays from entering, white paper, white foils or foils with metallic coatings may be used, or the bottles may be coated with white lacquer, metal powder, &c. Reference has been directed by the Comptroller to Specifications 30357/97, [Class 125, Stoppering &c.], 121,273, and 327,202, [both in Class 94 (i), Packing &c.].
Patent GB-185304-A (GB)
Title: Improvements relating to the speed gear control of motor vehicles
IPC: G05G5/24
Filed: 1921-08-03
Abstract: 185,304. Lusted, B., and Johnson,. J. L. Aug. 3, 1921. Retaining-devices for controlling apparatus.- The low-speed pedal is retained in its depressed position by means of a ratchet f mounted on the pedal shaft a and engaged by a pawl g normally held out of engagement by a spring m and operated by the foot by means of a push-rod j.
Patent GB-170908-A (GB)
Title: Improvements in or relating to the production of hydrogen
IPC: C01B3/06
Filed: 1920-07-10
Abstract: 170,908. Griggs, A. R. July 10, 1920. Hydrogen.-In the production of hydrogen by the treatment of iron or iron ore alternately with water gas or the like and with steam, the reduction is effected in stages, the gases that have been used in an advanced stage of the reduction being freed from the bulk of the water vapour mixed with fresh reducing-gas, and used again in another retort or group of retorts for affecting an earlier stage of the reduction. On issuing from the retort or group in which the first stage of reduction is going on, the gas may enter a retort or group to which air is also supplied so as to heat the retort &c. internally; localized heating may be prevented by using a large quantity of air. Alternately internal heating and initial reduction may be effected simultaneously in the same retort by the use of a small quantity of air. The gas may finally be burnt for external heating of the retorts. Waste heat of the combustion products and of the hydrogen and excess of steam may be transferred to the fresh reducing gas, the air for combustion, the fresh steam, or the feed water. Either heat-storage regenerators or continuous-flow heat interchangers may be used for this purpose. The waste gas may also be used, with or without fresh gas, in the steamgenerator. Heat removed from the gases between two reduction stages, for the condensation of the water vapour, may be restored thereto. Some of the reducing-gas may be removed from the system between two stages and used for heating the retorts ; or additional fresh gas may be supplied at this point. As shown, four groups of retorts A-D are situated within a combustion chamber and connected to a reducing-gas supply z through valves 1-4, to pipes 18, 19 through threes-way valves 5-12 at top and bottom for conveying the partly-used gas from one retort to another, to air-inlet valves 20-23, to valves 13-16 and a pipe 17 leading into the combustion chamber, to steam pipes y at top and bottom, and to hydrogen outlet valves 24-27 at the top. When a new retort is to be used for hydrogen making, it is first washed out with steam from the upper steam pipe, the residual gas being thus driven into the retort which is entering on the final reduction stage; then the steam is admitted at the lower end and hydrogen drawn off at the top. In an apparatus comprising two or three groups of retorts, an initial heating stage may be combined with or immediately precede an initial reduction stage, the hydrogen-making only occupying a part of the time taken in reduction. Specification 165,829 is referred to.
Patent GB-499502-A (GB)
Title: Improvements in shift mechanism for typewriters and like machines
IPC: B41J29/70
Filed: 1937-07-27
Abstract: 499,502. Typewriters. CARR, G. E. July 27, 1937, No. 20748. [Class 100 (iv)] Carriage-shift and case-shift mechanisms.- The shift-segment 13, Figs. 2 and 3, of a manually operated typewriter, or alternatively the paper-carriage, is biassed towards the midposition and is provided with a member such as a V-cam 1 co-operating with a member, such as a roller 14 on a spring-urged lever 12, mounted on the framework and so arranged that the shift-segment after passing the midposition is thrust into and maintained in upper-case or lower-case position independently of the shift-key. The arrangement prevents shift from occurring when the shift-key is flicked inadvertently. The cam may be so adjusted or shaped that the upper-case and lower-case shift-keys have the same or different touches. The cam is secured by means of screws 9 and is adjustable vertically by means of an eccentric 8 arranged in a slot. The lever 12 is guided by a fork 7 and engages a spring 5.
Patent GB-495499-A (GB)
Title: Method for the destruction of bacteria present in empty vessels, tanks or the like and means therefor
IPC: A61L2/10
Filed: 1937-07-27
Abstract: <PICT:0495499/III/1> <PICT:0495499/III/2> The interiors of empty vessels, e.g. tanks, casks, bottles are sterilized by subjection to radiations from ultra-violet or other ray-emitting tubes which are guided into and withdrawn from the vessels by means of hand or mechanically operated mechanism.  In the arrangement shown in Fig. 1 U.V. ray tubes 2 are brought within and withdrawn from a tank 1 by means of rack and pinion mechanism 7-10.  Fig. 2 shows similar mechanism applied for the movement of tubes 18 into and out of bottles mounted in a rack 13, 16.
Patent GB-671420-A (GB)
Title: Improvements relating to liquid quantity gauges
Inventor: ALLEN FREDERICK RONALD
IPC: G01F23/26
Filed: 1949-08-10
Abstract: 671,420. Electric tests. SIMMONDS AEROCESSORIES, Ltd. Aug. 9; 1950 [Aug. 10, 1949], No. 20822/49. Class 37. In a liquid quantity gauge wherein a measuring condenser is compared with a fixed condenser having as its dielectric medium the same liquid as that which forms the dielectric or part thereof of the measuring condenser, the fixed condenser is arranged in the outlet pipe from the tank being gauged and is preferably separated from the tank by a filter so that the dielectric is clean filtered liquid. The electrodes  may be constituted by cylinders disposed coaxially in the outlet pipe. The fixed condenser may be arranged to effect temperature compensation in the gauge.
Patent GB-517032-A (GB)
Title: Improvements in or relating to clips
IPC: H01R4/64
Filed: 1938-07-14
Abstract: 517,032. Couplings. DEAN, A. J. July 14, 1938, No. 20948. [Class 38 (i)] [Also in Group XXV] A band clip, particularly applicable as an earthing clip, comprises a length of metal strip 1 having one end 2 bent inwards at right-angles and perforated to receive a screw passed through a registering hole in the other end of the clip, which may have a series of holes to allow adjustment by selection of appropriate hole. As shown, the clip is of copper and is used to connect a wire 6 to a pipe 5. The hole in end 2 is untapped, a wood screw 7 being used the tapered thread of which is self-tapping. The end of the screw wedges the wire against the clip, pipe, or both. When the pipe is of lead or other, soft metal, end 2 may have an extension bent inwards to lie against the surface of the pipe to protect it from damage by the screw.
Patent GB-811717-A (GB)
Title: Improvements in or relating to therapeutic compositions
IPC: A61K31/43
Filed: 1955-07-20
Abstract: A therapeutic composition comprises a water-insoluble penicillin salt in finely-divided form, polyvinyl-pyrrolidone in amount from about 0.05 to 2.0 per cent, lecithin in amount from about 0.2 to about 5.0 per cent, a parenterally acceptable water-soluble buffer in amount from about 0.5 to 10 per cent, an alkali metal salt of carboxymethylcellulose in amount from about 0.1 to 3 per cent, all by weight of the penicillin salt, and a preservative.  Specified penicillin salts include procaine penicillin, dibenzylethylenediamine penicillin; N-benzyl-N1 - (3 - ethoxy - 4 - hydroxy) - benzylethylenediamine penicillin; 2-chloroprocaine penicillin and N,N1 - di - (4 - methoxybenzyl) - ethylenediamine penicillin. Polyvinylpyrrolidone of average molecular weight 40,000 is preferred. Suitable buffers include sodium citrate, sodium acetate, sodium lactate and alkali metal salts of inorganic acids such as mono- and di-basic sodium phosphates.  Specified preservatives include the methyl, propyl and butyl esters of p-hydroxybenzoic acid, sodium bisulphite, and quaternary ammonium compounds such as benzalkonium chloride.  A stable polyhydroxy alcohol such as sorbitol or mannitol may also be included.  A minor proportion of a solubility depressant (e.g. procaine hydrochloride when procaine penicillin is employed, or dibenzylethylenediamine acetate when dibenzylethylenediamine penicillin is employed) may also be included in the compositions. The dried preparation is suitable for extemporaneous compounding with water to form aqueous suspensions for injection purposes. An example is included.
Patent GB-575291-A (GB)
Title: Improvements in and relating to fluorescent lamp starting and controlling apparatus
IPC: H01R33/08
Filed: 1943-12-20
Abstract: 575,291. Control systems for space discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 20, 1943, No. 21330. Convention date, Dec. 24, 1942. [Class 38 (iv)] The casing 12 of a combined starting and lock-out switch unit 6 for a fluorescent lamp 1, which casing projects through a mounting panel 2 into close proximity to the lamp and sufficiently to enable it to be grasped for detachment from the lamp-holder base 3, has a top from which a tell-tale and lock-out switch re-setting button 30 projects, which top is concave around the button so that the button does not interfere with the lamp. The unit 6 may be as described in Specification 21166/43 (as open to inspection under Sect. 91).
Patent GB-637397-A (GB)
Title: Improvements in or relating to apparatus for supporting an anti-dazzle awning on an automobile
IPC: B60J3/00
Filed: 1947-08-06
Abstract: 637,397. Hinges. PECKAT MANUFACTURING CO., C. Aug. 6, 1947, No. 21384. Convention date, June 29, 1939. [Class 65 (ii)] [Also in Group XXXII]  ' An apparatus for supporting an awning in a desired position with respect to the windshield of an automobile having gutters adjacent said windshield comprises a pair of plate brackets adapted to be clamped to the gutters and a hinge carried by each member for supporting the awning. Each bracket 18 is clamped to a gutter 29 and is slotted at 34 to receive a transverse rod 14 which is attached to the top edge of the awning (see.G,roup XXXII) and pivotally supported at each end in a bracket 36 secured to the outer face of the bracket 18 by a screw 38.
Patent GB-255253-A (GB)
Title: Improvement in travelling blocks
IPC: B66D3/04
Filed: 1925-08-26
Abstract: 255,253. Greve, E. E., and Oil Well Supply Co. Aug. 26, 1925. Pulley-blocks.-A travelling block includes a frame having a supporting base portion, one or more sheaves carried by the frame, and a load carrier pivotally mounted in the frame and adapted to be swung free of the base portion. the side members 2 of the block have flat bottom faces 17 and are formed with apertures 4, 6, 7 to receive the shaft 5 carrying the sheaves 3 and tie bolts 8, 9, respectively. Plates 25 mounted on the shaft 5 and tie bolts form compartments for the sheaves and bearings. The end members 27 of a supporting memoer 26 are pivotally mounted on the bolt 8 and with members 28, 29 act as spacing means for the plates 25. Threesided guard members 28a having slots 29a for the passage of ropes are secured to the members 2 and prevent direct access to the sheaves. The load carrier 30 is pivotally mounted on the bolt 9 and carries two vertically movable bolts 34 connected by a cross-member 35. The head of each bolt rests on a compression spring 38. The carrier 30 can be swung aside to allow the block to be stood upright on the faces 17 when it is desired to string the ropes.
Patent GB-573881-A (GB)
Title: Improvements in or relating to gas heaters
IPC: F23C99/00
Filed: 1943-12-22
Abstract: 573,881. Air-heating furnaces. AKT.-GES. FUR TECHNISCHE STUDIEN. Dec. 22, 1943, No. 21478. Convention date, Dec. 31, 1942. [Class 64 (i)] [Also in Group XII] In a pulverised-fuel air-heating furnace, the air to be heated is supplied at 22, part passing through tubes 10, arranged around the walls of the combustion chamber B in the same direction as the hot gases and part through tubes 20 in countercurrent to the gases passing down the flue 21. The upper parts of the tubes 10 are directly exposed while the lower portions are covered with refractory material 4 having sloping upper surfaces 17.