baber/WOPTO huggingface dataset:
Patent GB-717633-A (GB)
Title: Electromagnetically operated piston compressor for compressing fluids
IPC: F04B35/04
Filed: 1952-07-23
Abstract: 717,633. Electromagnetic compressors; lubricating pumps. ZEH, A. July 23, 1952 [Aug. 2, 1951], No. 18681/52. Classes 8 (1) and 102 (1). [Also in Group XXXV]  An electromagnetically operated compressor comprises a cylinder 20 containing a piston 14 connected to an armature 13 co-operating with a stationary electromagnet 15, 16 which is energised intermittently to reciprocate the piston against the action of a spring 31, and electromagnetic control means responsive to the amplitude of the piston stroke are adopted to produce an auxiliary force opposing the spring force so that the clearance volume at the end of the compression stroke remains constant irrespective of variation in the amplitude of the stroke. The coil 15 of the electromagnet is supplied with alternating current and an auxiliary coil is supplied with direct current which produces a continuously acting downward force the effect of which increases due to the consequential reduction of the air gap in a pole. piece 16' of the electromagnet coil 16. In other embodiments the coil 15 is connected across an alternating current supply whilst part of the coil is fed with direct current which produces the auxiliary force and which may come from a separate source or be taken from the alternating current supply through a rectifier. Alternatively coil 15 may be supplied with an interrupted current through a half wave rectifier and the inductance of the coil 15 may itself provide the auxiliary magnetising current. Both the armature and the coil may be slotted to reduce eddy-current losses. A bore 17 in the armature co-operates with a fixed projection 18 to form a lubricating pump which sucks oil through an inlet valve 22 and forces it through a delivery valve 23 to the compressor cylinder. The loading of the spring 31 may be adjusted by an abutment member 24 screwed on a connecting rod 32. Cooling fins 25 are provided.
Patent GB-641965-A (GB)
Title: Improvements in projectiles for use with weapons of the type having a tapered bore
IPC: F42B12/06
Filed: 1947-07-14
Abstract: 641,965. Ammunition projectiles. ZBROJOVKA BRNO, NARODNI PODNIK, and KYNCL, J. July 14, 1947, No. 18714. Convention date, July 15, 1946. [Class 9 (i)] A projectile comprises a casing 1, whose rear enlarged guiding section 8 is reduced during its travel through the gun barrel, and a deformable filling 2 which is centred in the rear part of the section 8, a space 9 being left in front of this part between the filling and casing, and the arrangement being such that during the deformation of the projectile to the final calibre only the rearward part of the filling 2 is subjected to deformation. In Figs. 2a and 2b, which show respectively the original and final shape of a projectile, a filling 2 of soft iron is fitted with a plug 4 of lead and is separated from the casing 1 by a brass ring 3, the ring having grooves 5 into which the material of the casing is pressed during deformation. A short cylindrical section v assists in centring the filling. In modifications the ring is dispensed with and in another modification, Fig. 1a, there is neither a plug nor a ring. Specification 592,538 is referred to.
Patent GB-530599-A (GB)
Title: Improvements in or relating to lasts for orthopaedic footwear
IPC: A43D3/02
Filed: 1939-06-28
Abstract: 530,599. Orthopaedic shoes. WRIGHT &CO., Inc., E. T. June 28, 1939, No. 18830. Convention date, March 2. [Classes 17 (i) and 17 (ii)] A last intended for use with a shoe bottom structure having a pad designed to support the metatarsal arch has a recess of approximately segmental shape to receive the pad, situated at the appropriate position in the bottom of the last, to facilitate the positioning of the shoe bottom unit. The recess has substantially plane surfaces 10, 11 and a concave surface 13. At the rear of the recess the last has a ridge 16. The shoe bottom unit has an insole moulded to fit the recess, a segmental filler pad within the recess on the underside of the insole and a shank stiffener S grooved to receive the ridge 16 and a flexible flap T. The underside of the insole may have a pebbled or roughened surface to afford an anchorage for cement used at subsequent stages.
Patent GB-571895-A (GB)
Title: Removable tray rack construction
IPC: B62B3/10
Filed: 1943-11-12
Abstract: 571,895. Rack stands. SAUL, S. Nov. 12, 1943, No. 18847. Convention date, Nov. 14, 1942. [Class 52 (iii)] The base plate 4 of a rack stand of the kind having spaced hooks to support trays 20 is reinforced on its underside by angle iron bars 7, 8 with both flanges welded to the plate. The hooks which receive the trays are shaped to prevent accidental detachment of the trays.
Patent GB-422686-A (GB)
Title: Cushioning and shock-absorbing device for vehicles
IPC: F16F9/48
Filed: 1934-06-26
Abstract: 422,686. Shock - absorbers. FAUDI, F., 190, Hansa-Allee Oberkassel, D³sseldorf, Germany. June 26,' 1934, No. 18866. Convention date, July 18, 1933. [Class 108 (iii)] A device adapted to act as a shockabsorber or as the main suspension of a vehicle comprises a metal spring a and a pneumatic cylinder- and-piston arrangement in which on movement of the piston f from the normal inoperative position shown, air is first forced from one side of the piston to the other through one of a decreasing series of ports i and an annular recess g formed in a removable liner b<2> in the cylinder b<1>, until the piston has passed the end port or ports when compression of the air occurs. The cylinder bl is connected with the atmosphere through ports h covered by dust &c. filters k. Dust &c. is also excluded by a leather bellows l clamped between the spring abutments c, c<1>.
Patent GB-187304-A (GB)
Title: Improvements in the construction of parquet flooring
IPC: E04F15/04
Filed: 1921-07-13
Abstract: 187,304. Simkins, E. July 13, 1921. Wood-block flooring.-Strips of cork A are inserted between plain wooden blocks B, so that the parquetry is free to expand and contract owing to atmospheric changes. Specifications 7503/00, [Class 140, Waterproof &c. fabrics], 15838/10, and 30085/12 are referred to.
Patent GB-1109790-A (GB)
Title: Improvements in or relating to beaming machines
Inventor: KIMPTON WILLIAM HARRY
IPC: B65H18/16
Filed: 1966-04-30
Abstract: 1.109.790. Beaming machines. W. H. K. PRODUCTS Ltd. 31 March, 1967 [30 April, 1966], No. 19091/66. Heading DIM. A beam 10 is pressed against a presser roller 12 under constant pressure by a hydraulic cylinder 20. An electric motor 17 drives an electromagnetic clutch 18 which rotates a nut to move a piston 14 in a cylinder 13 so that hydraulic pressure is applied to the cylinder 20 and a cylinder 19 whose piston 21 acts against an adjustable spring 24. As the beam diameter increases the piston 27 of the cylinder 20 forces fluid to move the piston 21 against the action of the spring 24. A switch 29 is then closed to operate the clutch 18 to relieve pressure in the cylinder 13.
Patent GB-530211-A (GB)
Title: Improvements in or relating to internal combustion engines using dust fuel
IPC: F02B45/02
Filed: 1939-06-30
Abstract: 530,211. Powdered fuel engines. HANNOVERSCHE MASCHINENBAU AKT.-GES. VORM. G. EGESTORFF (HANOMAG). June 30, 1939, No. 19093. Convention date, July 30, 1938. [Class 7 (ii)] Powdered fuel, mixed with air, is ejected from a chamber 8 by compressed air, the arrangement being such that, after ejection of the fuel, pressure in the chamber is reduced by an injection effect produced by a flow of compressed air at the discharge valve 11. To discharge the chamber 8, the valve 11 is opened by the action of a lever 14 on the double-walled hollow valve stem 20. An abutment 25 actuates a valve 24 admitting compressed air to a conduit 23 ; when a conduit 26 on the valve stem 11 moves into register, the compressed air gains access by radial passages 28 to the fuel-filled chamber 8 discharging it through inclined passages 31 and valve passages 15 to the combustion chamber 10. For scavenging, air at a lower pressure is supplied by a valve 19 which is maintained open by an abutment 21 after the high-pressure valve 24 closes. The conduit 18 communicates by way of a non- return valve 32 with a chamber 17 and the valve passages 15 at which an ejector effect is produced on the passages 31 and chamber 8. Pressure in the latter is reduced to such an extent that when, after closure of the valve 11, a lever 6 opens the valve 4, fuel mixed with air flows,readily from the mixing chamber 2 in the hopper 1 to refill the chamber 8. The actuating levers 6, 14 are controlled from a shaft carrying axially movable cams, adjustable by a centrifugal governor from a starting position in which compressed air alone is supplied.
Patent GB-314430-A (GB)
Title: Improvements in or relating to glass washing machines
IPC: B08B11/04
Filed: 1929-06-21
Abstract: 314,430. Kolb, L. J., (Assignee of Worrall, A. G.). June 27, 1928, [Convention date]. Glass sheets, washing.-A machine for washing glass in sheet form comprises feed rolls 4 bearing resiliently against the glass and moving at a slow speed in comparison with the speed of rotating brushes 10 which wash the glass in conjunction with cleansing liquids supplied through spray pipes 50, 51. A tank 40 located below the brushes is divided by partitions 41, 42 into compartments corresponding to the number of pairs of brushes employed. The compartments contain liqud at different temperatures, which, by means of steam ejectors 53, is passed through the spray pipes 50, 51, from corresponding compartments below. Box-like structures 47, 49, enclosing the brushes and feed rolls cause the return of liquid to its proper compartment. The brush shafts 11 are mounted at each end in slidable bearings 17, 18 pressed towards adjusting screws 20, 21, by a spring 19. The bearings for the feed rolls 4 are also adjustable, and the upper rolls are pressed downwardly by springs, 24. The brushes and feed rolls are driven from a main shaft 26 through gearing shown in Fig. 4. The Specification as open to inspection under Sect. 91 (3) (a) claims a machine for washing not only glass but other material in sheet form. This subject-matter does not appear in the Specification as accepted.
Patent GB-487104-A (GB)
Title: Firing mechanism for automatic firearms
IPC: F41A19/31
Filed: 1937-07-09
Abstract: 487,104. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. July 9, 1937, No. 19120. Convention date, July 20, 1936. [Class 92 (ii)] A longitudinally-displaceable trigger-rod 5 for operating the pivoted seat 10 is rotatable to a safety position in which the release movement of the sear is prevented. In the safety position shown in Figs. 1 and 6, the button 6 of the trigger rod has a projection 15 engaging a fixed stop 14. By rotation of the button, the stop is brought opposite one of the slots 16 to permit firing by pressure on the button. The rod carries a collar 28 and is feathered to a notched locating member 23, a controlling spring 30 being inserted between the member 23 and the collar 28. In the safety position, an arm 21 on the member 23 engages beneath the sear to prevent accidental release thereof.
Patent GB-633387-A (GB)
Title: Improvements in or relating to connecting means for electrical apparatus
IPC: H01J5/30
Filed: 1947-07-17
Abstract: 633,387. Electric condensers. SPORING, P. A., and TELEGRAPH CONDENSER CO., Ltd. July 17, 1947, No. 19128. [Class 37] An insulated lead 8 from a condenser 1 is brought out through an aperture 4 in the casing 2, the aperture being closed by a resilient bung 10 passed over the lead 8 and so arranged that the bung is compressed to form an hermetic seal by the action of inserting it. Specification 621,252 is referred to.
Patent GB-1159215-A (GB)
Title: Process for the manufacture of Films of Polypivalolactone
Inventor: VLIG MEYE
IPC: D01F6/62
Filed: 1967-04-26
Abstract: 1,159,215. Polypivalolactone films. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 April, 1967, No. 19152/67. Heading B5B. Polypivalolactone films consisting of at least 75% by weight of structural units of formula -O-CH 2 -C(CH 3 ) 2 -COO-, are prepared by extruding a melt through a longitudinal slit and drawing the extruded melt out in a ratio between 5 : 1 and 500 : 1 to a film preferably not thicker than 0À5 mm., and cooling the film by directing a current of gas on to one side of the film, the other side of the film being pressed by the gas against the surface of a cooling roll preferably maintained below 150‹ C. After cooling the film may be stretched and/or fibrillated according to conventional methods. Copolymers containing polypivalolactones and up to 25% of other polymers such as polyamides, polyethylene terephthalate, and polyolefins may also be used.
Patent GB-1434926-A (GB)
Title: Impregnating fibre material
IPC: B29C70/50
Filed: 1972-04-25
Abstract: 1434926 Impregnating tows IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 10 April 1973 [25 April 1972] 19225/72 Headings D1L and D1R Fibre tow is impregnated with resin by causing relative movement between the tow and a resin dispenser nozzle spaced from the tow and feeding resin from the nozzle onto the tow so that the resin leaves the nozzle and thereafter flows freely onto the tow at a controlled rate such that substantially all of the dispensed resin is retained by the tow. The resin can flow to the nozzle by gravity or via an peristaltic pump. The resin, e.g. epoxy resin, can be a melt, solution or dispersion. The tow may comprise glass or carbon fibre. The impregnated resin can be dried and partially cured in an oven, flattened into a band, and wound into a package.
Patent GB-644046-A (GB)
Title: Improvements in or relating to processes for preparing high molecular weight condensate resins or polymers, and the improved compositions resulting therefrom
IPC: C08G77/28
Filed: 1947-07-18
Abstract: Polymeric silicon derivatives are obtained by hydrolysing a dithienyl silicon dihalide, e.g. R2SiCl2, where R is a simple thiophene radical or one substituted by halogen, alkyl, or aryl groups.  The substance may be co-hydrolysed with monothienyl silicon trichloride, aryl or alkyl silicon dichloride, or silicon tetrachloride.  The liquid products are suitable as lubricants, and the solids may have incorporated fillers, plasticizers, opacifiers, dyestuffs, and pigments.  The preparation of thienyl silicon chlorides is described (see Group IV (b)).  In examples: (2) diethienyl silicon dichloride alone, and (3) in admixture with silicon tetrachloride, is hydrolysed with a mixture of water, butanol, and benzene, yielding (2) a liquid, and (3) a solid product.ALSO:Thienyl silicon chlorides for use in preferring silicones (see Group IV (a)) are prepared by the Grignard reaction from silicon tetrachloride and bromothiophenes.  The thiophene may be substituted also by fluorine, chlorine, bromine, or alkyl or aryl groups (starting from a -chloro-a 1-bromothiopene, an a -chloro-thienyl chloride is obtained).  In an example thienyl magnesium bromide is reacted with silicon tetrachloride.  The crude product on distillation yields fractions comprising mono-, di- and tri-thienyl silicon chlorides respectively.
Patent GB-930041-A (GB)
Title: A complex polysaccharide for therapeutic use and process for its preparation
IPC: C08B37/00
Filed: 1961-05-29
Abstract: Actinogan (claimed per se), which is an actinomycete and a complex polysaccharide having a substantial activity against Sarcoma 180, is produced by cultivating the microorganism ATCC 13748 under submerged aerobic conditions in an aqueous medium comprising a carbohydrate or lard oil and a nitrogenous nutrient. The carbohydrate may be cerelose.  The nitrogenous nutrient may be sodium or ammonium nitrate, corn steep liquor, yeast, or soybean meal.  Cultivation may be at 22 DEG -32 DEG C. for 1-5 days.  The crude product may be separated from the broth produced by cultivation by saturating with ammonium sulphate and centrifuging. Purification may be effected by dissolving in water, dialysing the solution, precipitating with acetone, redissolving in water, and treating with a cross-linked dextran polymeric molecular sieve. The product has a molecular weight of more than 7,000, it has a wide shoulder between 260-280 mu in its ultraviolet absorption spectrum, and it imparts resistance to Staphylococcus aureus.
Patent GB-913571-A (GB)
Title: Hydroconversion of hydrocarbons
IPC: C10G65/12
Filed: 1961-05-30
Abstract: Hydrocarbon oil feedstocks having a Conradson carbon residue of at least 1,0% by weight are hydroconverted in a process which comprises passing an intimate mixture of the oil and hydrogen, containing at least 5000 SCF/B of hydrogen, as a confined steam through an elongated reaction zone under conditions of turbulent flow at a temperature between 700 DEG  and 900 DEG F. and a pressure between 1000 and 5000 p.s.i.g. inclusive, separating the reaction zone effluent comprising hydrogen, vaporous and liquid hydrocarbons into a gasiform portion comprising hydrogen and vaporous hydrocarbons and a liquid portion comprising liquid hydrocarbons, contacting said liquid portion in a non-catalytic contacting zone with a hydrogen stream separately heated to 800 DEG  to 900 DEG F. and amounting to at least 20% by volume of the total hydrogen supply but not less than 5000 SCF/B, the total hydrogen supply amounting to between 10,000 and 100,000 SCF/B of oil charged to the reaction zone, thereby producing additional vaporous hydrocarbons in said contacting zone, removing unreacted hydrogen and vaporous hydrocarbons from the contacting zone and combining them with the gasiform portion from the elongated reaction zone, passing the combined stream into contact in a catalytic treating zone with a hydrogenation catalyst at a temperature between 600 DEG  and 800 DEG F. and a liquid hourly space velocity of from 0,4 to 10 volumes of normally liquid feed per volume of catalyst per hour, and recovering a normally liquid hydroconversion product from the catalytic treating zone effluent, for example by passing the effluent into a high-pressure separation zone from which is recovered a liquid of reduced sulphur, metal, and carbon which may be scrubbed with an amine solution and recycled to the reaction zone.  A portion of the normally liquid product may be recycled and mixed with the combined streams fed to the catalytic treating zone in order to cool the combined streams.  The catalyst may be one comprising the oxide or sulphides of molybdenum and a Group VIII metal, for example cobalt or nickel.
Patent GB-1424297-A (GB)
Title: Process for vapour phase ammoxidation
IPC: C07C253/00
Filed: 1974-05-03
Abstract: 1424297 Preparation of nitrite SUN VENTURES Inc 3 May 1974 [4 May 1973] 19476/74 Heading C2C  In the vapour phase ammoxidation of alkylsubstituted organic compounds the yield of nitrile product is improved by incorporating CO with the reactant stream.
Patent GB-627456-A (GB)
Title: Improvements in apparatus for the proportional mixing of liquids
IPC: G05D11/00
Filed: 1947-07-21
Abstract: 627,456. Mixing fluids in flow. SHEEN, R. T. July 21, 1947, No. 19507. Convention date, March 13, 1946. [Class 86] For injecting a treating liquid into a conduit in which is flowing another liquid, a pump is positively reciprocated by the plunger of an electric solenoid excited over contacts intermittently operated at a rate proportional to the flow of said other liquid. In the embodiment described, contacts intermittently operated by a meter 13 in a conduit 10 which carries the liquid to be treated, cause corresponding intermittent operation of a solenoid 26 over a contactor circuit 24 and relay 25. The solenoid plunger is coupled by a link 31 to a bell crank lever 35 which reciprocates a spring-loaded piston 39 of a pump 12 by which means the treating liquid is drawn from a tank 11 and injected into the mixing tank 14. The reciprocation of the piston is damped by a dash pot 45, its stroke being limited by the end 54 of a pin 52 screwed into a nut 53.
Patent GB-671813-A (GB)
Title: Improvements in sash weights
IPC: E05D13/00
Filed: 1950-08-04
Abstract: 671,813. Moulding sash weights. DIAMOND, P. J. Aug. 4, 1950 [Oct. 5, 1949], No. 19574/50. Class 87 (ii) [Also in Group X]' Sash weights are made by tightly packing fragments 4 of scrap iron or steel around a rod 1 in a cylindrical mould 7 and filling the spaces 5 with a thin cement slurry. The mould 7, preferably having an internal diameter not greater than 1# inch may be made in two parts, or it may be made as a thin metal tube, in which case it forms a permanent outer covering for the weight. Small amounts of lead and cast-iron borings may be included in the weight. To ensure that all of the spaces 5 are filled, small amounts of packing and slurry are added alternately until the mould 7 is filled. A rod 1 is provided with an eye 2, and is either bent at its other end as at 3 or has a washer riveted to it.
Patent GB-625886-A (GB)
Title: Improvements in and relating to the quantitative analysis of gaseous mixtures
IPC: G01N27/18
Filed: 1944-10-11
Abstract: In a gas analysing system in which a katharometer is included in a Wheatstone bridge, the measuring instrument is supplied with a voltage for counteracting the effect of changes of pressure in the gas being analysed, which is passed at a constant rate through chamber 1 while air is passed at a constant rate through the chamber 2.  Wires 3 and 4 in the chambers are connected with resistances 5, 6, in a Wheatstone bridge supplied from a constant D.C. source 8, and out of balance currents due to changes in thermal conductivity of the gas consequent on changes in composition are shown on indicating instrument 9 in series with resistance 10.  Direct voltages in opposite senses are applied to resistance 10 from rectifiers 16, 17 fed by windings 14, 15, on iron core 11, energized by winding 12, fed with steady A.C. from source 13.  Iron armature 20 at one end of the core is initially adjusted with regard to the core so that at normal working pressure no resultant voltage <PICT:0625886/III/1> appears across 10.  An armature 19 at the other end of the core is adjusted by bellows 18 responsive to the pressure of the gas entering chamber 1, so that a voltage dependent on pressure variations is applied across resistance 10 to compensate the indication of instrument 9 for errors due to changes in working pressure.  The compensating voltage may be derived from a potentiometer operated by the pressure bellows through levers.
Patent GB-957247-A (GB)
Title: Improvements in or relating to aerial systems
Inventor: RADFORD MATTHEW FREDERICK
IPC: H01Q25/00
Filed: 1962-05-22
Abstract: 957,247. Aerials; radar. MARCONI CO. Ltd. Feb. 5, 1963 [May 22, 1962], No. 19674/62. Headings H4A and H4D. An aerial system (Fig. 2) capable of producing two radiation patterns (Fig. 1) alternatively, one pattern L being highly directional, the other being less directional but having a dip N in the position shown, comprises a plurality of elements H fed from T1 through a directional coupler K and a further element (or elements) HC fed from T2 through the same coupler K. The elements H and HC may be Yagi arrays, monopoles, dipoles or as shown horns, the element HC comprising the central element of the system. The directional coupler K introduces a phase delay of 90 degrees in the coupled line and the lengths of the feeders FH differ from the length of the feeder FHC whereby when the system is supplied at T1 all the elements are fed in phase (producing the directional pattern) whereas when the system is supplied at T2 the elements H radiate in phase opposition to the element HC (producing the less directive pattern). The receiver (not shown) is arranged to reject pulses in which the strength from the non-directional transmission exceeds that from the directional transmission. The invention is applied to I.F.F. secondary radar I.F.F. or air traffic control systems in which an interrogator transmits pairs of pulses, one pulse of each pair being applied to T1 and the other to T2.