baber/WOPTO huggingface dataset:
Patent GB-494277-A (GB)
Title: Improvements in or relating to the manufacture of propellant explosives
IPC: C06B21/00
Filed: 1937-07-23
Abstract: 494,277. Explosives. DEHN, F. B. (Western Cartridge Co.) July 23, 1937, No. 20460/37. [Class 9 (ii)] Propellent explosive grains are surface treated by first treating them with a solvent so as to prime or soften the surface and then treating them with the surface treating agent which may be an accelerator such as nitroglycerine or a deterrent such as dinitrotoluene, or diamyl or dibutyl phthalate. The treatment with solvent is preferably carried out while the grains are in a suspension or slurry in a non- solvent liquid which is preferably not substantially miscible with the solvent. The subsequent treatment with an accelerator or deterrent is also preferably carried out while the grains are in a suspension or slurry in a non- solvent liquid in which the accelerator or deterrent may be emulsified. This treating process is advantageously used for the powder grains produced as described in Specification 473,057. As an example, the grains are made into a slurry with four parts of water at about 40‹ C., a water emulsion of a solution of 60 per cent isopropyl acetate and 40 per cent benzene is added in amount of 5 to 15 per cent of the weight of explosive to prime the surface, and subsequently a water emulsion of 50 per cent nitroglycerine and 50 per cent toluene is added in amount sufficient to introduce 5 to 35 per cent of nitroglycerine into the explosive but deposited at the surface. The temperature is raised to 65‹ C. for thirty minutes to ensure completion of surface treatment.
Patent GB-189181-A (GB)
Title: Improved process and apparatus for making tar macadam
IPC: E01C19/10
Filed: 1922-04-01
Abstract: 189,181. Gettings, S. S., and Bodman, W. L. April 1, 1922. Tar-macadam, plant for making.-Consists in apparatus wherein the stone is gradually heated without agitation and is then dried in a slowly revolving drying-drum and passed to a measuring device, the tar being simultaneously heated and measured off, and the tar and stone subsequently mixed without fall in temperature. The stone is elevated by a conveyer h<3> and tipped into the tiltable buckets l<2> of a slow-moving conveyer l arranged in the enlarged portion g of the combustion chamber of a furnace f. At the return end of their lower run, the buckets are automatically tilted and the stone falls down a shoot l<5> into a rotary drying drum m. The stone is turned over gently by the rotation of the drum and falls into a measuring device m from whence the measured quantity is discharged by an attendant into the mixer o. Tar is heated in a separate receptacle by the furnace f, and is passed in measured quantities to the mixer o. The conveyers, drying-drum, mixer, and furnace blower are all driven by a power unit c.
Patent GB-294774-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F5/02
Filed: 1927-08-04
Abstract: 294,774. Powell, A. D., and Bradbury &. Sons, Ltd., J. Aug. 4, 1927. Jacks. - A lever jack operated by ratchet and screw-and-nut mechanism has the screw adapted to permit the crutch to be rapidly adjusted to the load. The frame A has side plates B, to which the lifting lever D is pivoted, the crutch E being mounted at one end of the lever D and a parallel motion link D<1>. An extension D<2> of the lever has at its end a trunnion F, Fig. 3. A vertical screw G passes freely through the trunnion F and through a second trunnion H mounted in the frame and is anchored to the trunnion H by collars I, the lower collar having a friction disc J. A handle O can be inserted in a pivoted socket N and rocked so as to rotate by means of a pawl P a ratchet wheel P<1> formed on a bevel wheel M engaging with a nut L on the screw. In operation, the handle O is inserted in a socket W on the base and the jack positioned under the load. The crutch is then rapidly adjusted to the load by rotating the handle Q on the screw G, the nut L being held against rotation by friction pads S, Fig. 5, held by clamps R so that the trunnion end of the lever is depressed and the crutch raised into contact with the load. Further rotation of the handle Q causes the friction disc J to be pressed against the lower trunnion, so preventing further rotation of the screw. The handle O is now engaged in the socket N and rocked to rotate the nut L which traverses the screw and raises the load.
Patent GB-1418952-A (GB)
Title: Fastener clips
IPC: F16B21/07
Filed: 1973-04-30
Abstract: 1418952 Stud-and-socket fastenings MODULAR SYSTEMS Inc 30 April 1973 20557/ 73 Heading E2B A fastener for securing wooden parts 10, 11 in face-to-face relationship comprises a pressed up socket 20 which is secured by screw 23 in a hole in part 11, and which has barbs 25 which catch the head 32 of a screw projecting from the other part.
Patent GB-821536-A (GB)
Title: Improvements in and relating to the manufacture of gear wheels
Inventor: SIMPSON WILLIAM EDWARD
IPC: F16H55/06
Filed: 1956-07-03
Abstract: 821,536. Toothed wheels. GENERAL MOTORS Ltd. June 21, 1957 [July 3, 1956], No. 20597/56. Class 80 (1). A composite gear-wheel comprises a metal disc 1 having on one side a flange 4 and on the other side a peripheral shoulder 5, said flange and shoulder forming radial and axial keys for a moulded non-metallic toothed rim portion 10. The rim portion, which may be of nylon, also penetrates a number of apertures 7 in the disc 1 to prevent relative rotation between the disc and rim, and is moulded around the grooved end portion of a shaft 8 secured in the disc 1, thereby forming a bearing boss 12. The flange 4 and shoulder 5 are simultaneously formed in the disc 1 by a pressing operation in which a narrow peripheral portion of the disc is axially displaced. The pressing operation also forms the required apertures in the disc. The same pressing operation may, as shown in Fig. 6, axially displace an arcuate portion 14 of the disc so as to leave on one face an arcuate depression which is filled by the material of the rim portion 10. The gear-wheel may then be used as a rotary electric contact member, e.g. for a windscreen wiper drive, since it has on one side an insulating arcuate portion flush with a metallic face. Specification 814,743 is referred to.
Patent GB-1313619-A (GB)
Title: Gas-producing combustible charges
IPC: C06B43/00
Filed: 1971-04-19
Abstract: 1313619 Gas-producing compositions DYNAMIT NOBEL AG 19 April 1971 [3 Feb 1970] 20628/71 Heading C1D [Also in Division C2] Pressure gas-producing compositions for use in a device operated by gas under pressure comprise (a) an aminoguanidine salt of azotetrazole and/or ditetrazole, preferably in amount 30-99.5% by weight of the composition, together with one or more decomposition-promoting catalysts in an amount of 0À5-5% by weight of the total composition, and/or further gas-yielding components; or (b) 30-98% by weight of the composition of an aminoguanidine salt of azotetrazole and/or ditetrazole. Suitable decomposition-promoting catalysts are compounds of V, W, Mo, Cr or Co. Other components referred to are chlorates, perchlorates, nitrates, nitroguanidine, guanidine nitrate, nitrocellulose, nitropolystyrene, polynitro phenols, polynitrocresols, ammonium oxalate, urea, aminoguanidine, sugar, tartaric acid, potassium and barium nitrates, Al-Ti alloy, and boron.
Patent GB-385651-A (GB)
Title: Improvements in or relating to spools particularly for holding surgical plaster
IPC: B65H75/16
Filed: 1931-07-18
Abstract: 385,651. Cases for spools of plaster &c. GROVE, S. and LESLIES, Ltd., 104A, High Street, Walthamstow, London. July 18, 1931, No. 20642. [Class 18.] A spool to hold surgical plaster &c. is provided with a detachable casing into which it can be inserted so that one flange 2 of the spool, in addition to forming a rotary locking engagement with the casing, also forms a seal for the open end of the casing through which the spool is inserted. The flange 2 is provided with a vertical extension 4, which engages with the casing by means of a broken screw thread or bayonet connection 5, and with a rim 8 which bears against the upper edge of the casing. The bottom 6 of the casing may be replaced by an annular ledge against which the flange 3 of the spool bears.
Patent GB-812656-A (GB)
Title: Feeding device in pulp grinders
Inventor: BYWALL ERIK
IPC: B27L11/00
Filed: 1957-07-01
Abstract: 812,656. Wood grinders. INGENIORSFIRMAN EINAR ERIKSSON & CO., A.B. July 1, 1957, No. 20718/57. Class 59 [Also in Group XXX] In apparatus for feeding logs 7 to a series of pulp grinders the logs are conveyed by pushers 25 of triangular section carried by a pair of endless chains 23 along a platform 30 provided with a series of openings, one opening being provided above each grinder C. Each opening is closable by a movable deck consisting of a number of parallel, longitudinal bars 31 slidable between stationary bars 30 forming the platform. The bars 31 are connected at their leading ends to a cross bar 32 over which the logs are discharged. By adjusting the position of the bar 32 the logs can be distributed within the space between the downwardly driven bands 37 of the grinder C to maintain an even pressure on the grinding drum 36. The bar 32 is adjusted to close the opening when logs are to be supplied to a following grinder. Driving rollers 28 at the commencement of the platform 30 cause one end of each log to be brought into contact with a side member 29 so that the ends of the logs are aligned.
Patent GB-1254346-A (GB)
Title: Electrophoresis apparatus
IPC: G01N27/447
Filed: 1969-04-23
Abstract: 1,254,346. Electro-phoretic separation. UPJOHN CO. April 23, 1969 [April 24, 1968], No. 20762/69. Heading C7B. Apparatus for electro-phoretic separation of proteinaccous materials, such as serum, tissue extracts, hormones, enzymes or polypeptides, comprises a vertical column 10 containing an electro-phoretic gel 16, across the length of which a D. C. potential is applied, e.g. using carbon or platinum electrodes 21, 22 in contact with respective buffer solutions 20, 19 and connected via leads 23, 24 to a D.C. power source 28, a collection chamber 29, e.g. comprising an ionpermeable, porous polyethylene elution plate 13, beneath the gel and having a central outlet 30 for downward withdrawal of separated material, e.g. via suction conduit 14, and means for supplying to the collection chamber a carrier liquid for separated material, preferably peripherally through passages in the elution plate 13. The gel may be of an acrylamide polymer, starch, silicon or agar, and supported by a porous, protein-permeable polyethylene partition 15, and the elution plate may be spaced from the partition by a nylon screen 18, with a dialysis membrane interposed between the screen and plate 13. The lower part of the gel column 16 is preferably immersed within a beaker 11 of buffer solution 19 serving as the carrier liquid. Cooling coils or jacket may be used to cool the buffer solutions.
Patent GB-464855-A (GB)
Title: Improvement in the treatment of materials containing or secerning substances promoting the action of proteolytic enzymes
IPC: A61K38/43
Filed: 1935-07-22
Abstract: The oxidizing-agents referred to in Specification 464,857 are added to materials, even when they do not contain proteolytic enzymes, but contain substances or principles promoting the action of enzymes, for instance, co-enzymes, activators, kinases or complements.  These substances or principles are normally able to act on proteolytic enzymes, but, when treated with the oxidizing-agents, are inhibited. Specification 464,857 as open to inspection under Sect. 91 describes the treatment of dry yeast with the oxidizing-agents.  It is now suggested that the inhibition of the proteolytic activity in the dought is due to the inhibition of the co-enzymes &c.ALSO:The oxidizing-agents referred to in Specification 464,857 are added to materials, even when they do not contain proteolytic enzymes, but contain substances or principles promoting the action of enzymes, for instance, co-enzymes, activators, kinases or complements.  These substances or principles are normally able to act on proteolytic enzymes, but, when treated with the oxidizing-agents, are inhibited. Specification 464,857 as open to inspection under Sect. 91 describes the treatment of dry yeast with the oxidizing-agents.  It is now suggested that the inhibition of the proteolytic activity in the dough is due to the inhibition of the co-enzymes &c.
Patent GB-517220-A (GB)
Title: Improvements in electrically heated cigar and like lighters
IPC: F23Q7/00
Filed: 1938-07-13
Abstract: 517,220. Electric igniters. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and RUSSELL, V. J. S. July 13, 1938, Nos. 20800/38, and 3279/39. [Class 75 (iii)] In a cigar or like lighter of the kind in which an electrically heated element is disengaged from its contacts when hot by a thermostatic device, one at least of the contacts consists of a bimetallic element maintaining or increasing its pressure on the contact of the heated element until release is effected. In the apparatus shown the .resistance element 19 is carried by a metal rod 18 attached to a moulded insulating member 13 which is slidable against the resistance of a spring 20 in an outer member 12 of moulded insulating material. The. member 12 has a grooved metal cap 14 and is detachably secured in a metal casing 10 by tongues 16. When the member 13 is pressed inwardly the resistance 19 is gripped by bimetallic detents 23 in contact with bimetallic contacts 24, thereby completing the circuit from a lead 25 through the resistance to the casing. As the resistance heats up the pressure of the contacts 24 increases while the detents 23 move outwardly until the resistance is released. The member 13 is then rapidly moved outwards by the spring 20. The part 26 of the member 13 projecting beyond the member 12 when the resistance is being heated is white while the remainder is red to afford an indication of the disconnection of the heated element. Ordinarily spring detents may be substituted for the bimetallic detents 23.
Patent GB-573800-A (GB)
Title: Remote control transmission device
Filed: 1943-12-13
Abstract: 573,800. Linkwork. CARTER, M. Dec. 13, 1943, No. 20810. [Classes 80 (iii) and 80 (iv)] [Also in-Group XXX] Consists in a remote control comprising flexible cables wound around drums located respectively at the operating and operated stations. The cables A, B are wound around drums C, D, one at each station, in opposite directions so that when one drum is rotated by its control member C<1> or D<1>, one cable winds on to it and the other off it to transmit a positive motion to the other drum. Pulleys A<2>, B<2> guide the cables on to the drums and other guide pulleys A<1>, B<1> are situated at points where change of direction occurs. The cables 1, 2, Fig. 2, are enclosed in rigid tubes 3 secured to corner boxes 4, each enclosing two grooved pulleys 6, 7 freely mounted on an axle 8. The centres of the tubes 3 are tangential to the pulley grooves. The cables are inserted through openings 9 adapted to be closed by covers 10, the distance between which and the rims of the pulleys is less than the diameter of the cables. At each station is a, frame 12 having a tube 3 secured thereto and carrying axles 15, 16, 17 on which are mounted guide pulleys 13, 14 and a cable drum 18 respectively. Each cable drum has an adjustable part 18A adapted to be clamped to the part 18 by a plate 19a and screws 19b. To pre-tension the cables, the part 18A is undamped and held by a bolt 23 entering a slot 22, the part 18 being then rotated by wheel 20, after which the part 18A is again clamped to part 18 and the bolt 23 withdrawn. A projection 27 on the drum is adapted to strike a pivoted pawl 30 to limit the rotation to slightly more than one complete turn. In a modification, Fig. 9, the projection 27 is adapted to engage a recess in one or other of arms 33, 34 of a bell-crank lever having notches 35, 36 adapted to be engaged by a spring 37. Thus, rotation clockwise from the position shown in Fig. 9 will cause the projection to strike the arm 34 to bring the recess 33 into a position to obstruct 27 when it next comes round and thus nearly two complete turns are possible. The cables may be secured to the drums at the middle point of their length or by ferrules on their ends inserted through the slots 22.
Patent GB-136872-A (GB)
Title: Improvements in and relating to Dynamo Electric Machines.
Inventor: HARRISON ERNEST
IPC: H02K23/52
Filed: 1918-12-13
Abstract: 136,872. Harrison, E. Dec. 13, 1918. Magneto-electric machines; pole-pieces; windings.-The shuttle armature of a dynamo-electric machine is formed with slots in the pole-pieces c and is wound with two separate and independent windings e, f one of which is situated in the large channels as usual and supplies alternating current and the other, which is intended for direct current, is wound in the large channels and in the slots, and is connected to a commutator. The alternating current may be used for ignition and the direct current for charging accumulators and lighting-lamps. The direct-current winding may also be used for running the machine as a motor to start up an internal-combustion engine. The armature or field magnet may rotate. The field magnets may be provided with magnetic shunt paths a connecting the horns of the poles d.
Patent GB-1075502-A (GB)
Title: Improved scraper device for endless conveyors
IPC: B65G45/12
Filed: 1965-05-17
Abstract: 1,075,502. Endless conveyers; cleaning. K. H. ROSKOPF, [trading as KARL-HEINZ ROSKOPF]. May 17, 1965 [May 21, 1964], No. 20840/65. Heading B8A. A scraper device for the throw-off roller of a conveyer belt comprises a tongue 24, Fig. 2, of soft material adjustably retained between a pair of guides 15 and fed towards the belt surface by a worm and worm-wheel 21, 22 or ratchet gear driving feed rolls 17, 18. The device may be supported on a counterbalanced arm (8), Fig. 1 (not shown), arranged to engage an electric contact (13) controlling the feed of the scraper tongue. In modifications the tongue may be bent to reduce the overall length of the device or change the angle of application on the belt.
Patent GB-929696-A (GB)
Title: Improvements in and relating to the preparation of silicon halides or silicon hydride halides
IPC: H01L21/205
Filed: 1961-06-08
Abstract: A silicon halide or silicon hydride halide, e.g. silicon tetrachloride or silico-chloroform, which is liquid at normal room temperature and is to be used for producing ultra-pure silicon for semiconductors, is purified from 'n-doping' impurities, i.e. compounds containing an element of Group V of the Periodic system, by adding to the liquid at least one boron halide.  This forms addition compounds with any 'n-doping' impurity, present, e.g. a phosphorus containing compound, and these addition compounds remain in the residue when the liquid silicon compound is evaporated, e.g. at a temperature, in the range 18 DEG C. to 30 DEG C. and the vapours so produced are substantially free from 'n-doping' impurities.  The quantity of boronhalide added may be such that, for example, in the case of phosphorus the atomic ratio of boron to phosphorus is less than 100 and is preferably approximately 1. The purified vapours can be reduced to pure silicon in a reaction vessel in which the silicon is deposited on electrically heated carrier rods as disclosed in Specification 861,135.
Patent GB-742958-A (GB)
Title: Improvements in and relating to drawing mechanisms for textile machines
IPC: D01H5/72
Filed: 1953-07-28
Abstract: 742,958. Textile drawing mechanism; condensers. ESTIRAJES BALMES, SOC. ANON. July 28, 1953 [Nov. 11, 1952], No. 20874/53. Classes 120 (1) and 120 (2). Drawing mechanism comprising a device for pressing and condensing a sliver between consecutive pairs of rollers in a spinning or like machine consists of a rigid frame 7 and a roller 6 within the frame that bears against the lower rollers 1, 3 of the two consecutive pairs, the frame extending downwards to form a condenser 17 and upwards to form a handle 8. In one form, Fig. 1, the frame 7 and the pressing roller 6 rest freely on the rollers 1, 3 with the roller journals 10 clear of ribs 11 which support it when it is not in operative position. These ribs are so arranged that the roller 6 can only be removed from the frame by applying pressure. In an alternative form, Fig. 9, the roller 26 may have recesses instead of journals and the frame 27 has cylindrical projecting parts 28 that pass into the recesses. In this case, the frame may consist of three units secured together with screws and will not rest on the rollers 1, 3. Instead of a plain roller 6, a grooved one may be employed with which a narrow roller co-operates and the frame 7 has a slot at the bottom to allow slivers to pass into the groove. Specification 515,910 is referred to.
Patent GB-315412-A (GB)
Title: Improvements relating to the regeneration of catalysts
Filed: 1929-07-08
Abstract: 315,412. Compagnie Internationale pour la Fabrication des Essences et Petroles. July 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Catalytic agents, preparation and treatment of. -The regeneration of catalysts used in the conversion of carbonaceous materials or heavy hydrocarbons into light hydrocarbons is affected by treating them in the converter, and either during or after the conversion period, with a mixture of air and steam. The carbon and sulphur contaminating the catalyst are converted into oxides of carbon and hydrogen sulphide respectively.
Patent GB-444287-A (GB)
Title: Improvements in couplings for flexible metal pipes
IPC: F16L35/00
Filed: 1935-07-23
Abstract: 444,287. Flexible tubes. POWER FLEXIBLE TUBING CO., Ltd., Finsbury Park, London.-(Assignees of Metall - schlauch - Fabrik Pforzheim vorm. H. Witzenmann Ges.; Pforzheim, Germany) July 23, 1935, No. 20939. Convention date, July 23, 1934. [Class 99 (ii)] A flexible metal tube has a rubber sleeve c adjacent the union b to obviate fracture of the tube at that point. The union is secured to the wire covering of the tube by solder at b<1>, and the rubber sleeve is secured to the union by a rigid sleeve d beyond the end of which the rubber sleeve projects.
Patent GB-752974-A (GB)
Title: Improvements in or relating to directional aerials for use on short waves
IPC: H01Q13/28
Filed: 1954-07-20
Abstract: 752,974. Aerials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 20, 1954 [July 21, 1953], No. 21074/54. Class 40 (7). A directional aerial system comprises a plurality of plate-like members P1 to P7, of the order of a quarter of the working wavelength wick, arranged one behind the other in parallel relationship approximately a quarter wavelength apart. The members P1 to P7 are graduated in width and/or in spacing. Means are provided opposite the plate-like member at one end for feeding to or receiving from the members radiation having its electric field component parallel to the width direction of the members. The means may comprise a horn reflector R comprising parallel planar side walls R3 and R4, a rear curved wall R2 and a flared mouth R1 which is fed by a horn primary element R5 attached to guide R6. The primary element and reflector are so arranged that the electric field component of the energy is parallel to the width direction of the plates and an inphase wave surface is obtained along the length of any particular plate. In the embodiment shown the plates are all of the same length but increase and then decrease in width as shown in Fig. 2. Instead of plates rod or mesh members may be used and a graduation in spacing instead of a graduation in width employed. The plate-like members can be of rectangular, circular or oval shape and serve to form an artificial dielectric element for producing a directional effect. Specification 751,046 is referred to.