baber/WOPTO huggingface dataset:
Patent GB-358678-A (GB)
Title: Improved means for delivering finely-divided or powdered material to conveyors
IPC: B65G69/20
Filed: 1930-09-11
Abstract: 358,678. Feeding devices for granular &c. material. STEEL BAND CONVEYOR & ENGINEERING CO., Ltd. and ALLEN, W. H., Barker Street Works, Parade, Birmingham. Sept. 11, 1930, No. 27107. [Class 59.] Finely divided material is delivered from a shoot 6 to a conveyer through a hopper 1 provided with a pair of relatively inclined plates 8, 9 separated at their lower ends by a gap 11, the arrangement being such that the material is delivered by the shoot on to the plate 8 and is directed by it on to the plate 9 in such a manner that the impact causes air to be released from the material. An aperture in the top of the hopper is covered by a piece of hessian or other fabric 7 of such a texture that it permits the passage of air but intercepts any dust. Baffles 10 on the plate 8 spread the material into a thin layer. The plate 8 is mounted upon a rotatable rod 12 which can be held in any adjusted position, and the plate 9 is hinged at 16 to a rotatable rod and adjusted by a screw 17.
Patent GB-665063-A (GB)
Title: Improvements in battery cages for rearing chickens
IPC: A01K31/00
Filed: 1949-10-22
Abstract: 665,063. Chicken rearing. VISI-CHICK. BROODER CO., Ltd., and STOUT, T. A. Oct. 23, 1950 [Oct. 22, 1949], No. 27188/49. Class 5(ii) Chicken-rearing cages A are individually removable from the battery stand B, being supported on slides b. The sides and tops of the cages may be hinged or detachable. Drinking troughs D are provided at the sides and feeding troughs either at the front or back.
Patent GB-461022-A (GB)
Title: Improvements in or relating to the manufacture of pipes and like hollow bodies
IPC: B05D7/22
Filed: 1935-10-03
Abstract: A method of manufacturing concrete pipes and like hollow bodies having bituminous linings consists in removing surplus water from the interior of the pipe, subjecting it to steaming or like treatment while still in the mould, and then while it is still hot and partly matured, spinning it and introducing a bituminous medium which is applied centrifugally.  The steaming operation preferably takes place in a chamber maintained at about 100 to 120 DEG  F.  The bituminous medium is preferably introduced into the pipe in a hot molten state from a tiltable trough.
Patent GB-1134405-A (GB)
Title: Stopper or plug for bottles, flasks or the like
IPC: B65D47/06
Filed: 1965-06-28
Abstract: 1,134,405. Stoppers &c. BENNETT & THORN Ltd., and W. A. WYNTON. 27 June, 1966 [28 June, 1965], No. 27308/65. Heading B8T. A plastics stopper for a bottle &c. comprises two coaxial cylindrical walls 1, 2 defining between them a tapering channel 3 to receive a bottle neck in sealing engagement. The inner wall 2 defines an axial bore 7 and may be shorter, as shown, or longer, Fig. 7 (not shown), than the outer wall 1. Sealing ribs may be provided on the inner and outer surfaces respectively of the walls 1, 2. The bore 7 may receive a pourer or a device for dispensing a measured quantity of liquid.
Patent GB-251183-A (GB)
Title: Improvements relating to bottle-cups in bottle-washing machines
IPC: B08B9/42
Filed: 1925-11-02
Abstract: 251,183. Marks, E. C. R., (Aktieselskabet Althuon & Nielsen). Nov. 2, 1925. Addition to 246,020. Bottles, washing. -Bottle-cups used in the machine described in the parent Specification are provided with bottom pieces to permit washing the outside of the necks of the bottles. As shown the bottom piece, which may be riveted to the inner end of the bottle-cup, comprises a hollow casting 1, the base of which has a slot 3 enlarged at the centre to engage the neck of the bottle. A slot 5 is provided on each side of the slot 3. Two nozzles may be inserted in the slot 3 to conduct washing liquid to the outside of the bottle, the liquid draining off through the slots 5. Vertical flanges 6 are provided near the slots to prevent stopperswings from being jammed in the case of bottles with stoppers attached thereto.
Patent GB-1213252-A (GB)
Title: Colour television tubes with variable pitch focusing grid
IPC: H01J29/80
Filed: 1969-05-30
Abstract: 1,213,252. Colour television tubes. THOMSON-CSF. 30 May, 1969 [31 May, 1968], No. 27598/69. Heading H1D. In a colour television tube of the type wherein beams from three electron guns pass through a parallax grid to a fluorescent screen comprising recurring patterns of different colour phosphor strips running parallel to the wires of the grid, mis-registration of the beams with the phosphors due to changing angles of incidence as the beams scan across the screen is avoided by varying the pitch of the grid wires. Preferably the pitch is given by the equation where P o  is the pitch of the equivalent constant pitch grid, E 1  is the maximum mis-registration of a constant pitch grid which is produced at the Nth grid wire, and n is the number of the grid wire counting from the centre. In one example the pitch varies from 911 microns at the centre of the screen to 924 microns at the edge.
Patent GB-1494399-A (GB)
Title: Amplifier
IPC: H03F1/30
Filed: 1975-07-01
Abstract: 1494399 Transistor amplifier RCA CORPORATION 1 July 1975 [23 Oct 1974] 27704/75 Heading H3T The voltage gain of an amplifier is stabilized against variation in supply potential by connecting non-linear D.C. circuits between the amplifier output and the two supply terminals. If the amplifier comprises in the prior art complementary enhancement mode matched FET's P10, N20 series connected with gates 14, 24 in parallel, sources 11, 21 and substrates 12, 22 connected to the respective supply terminals 3, 4 and drains 13, 23 in common to output 2, the stabilizing circuits may comprise similar complementary matched FET's P30, N40 with their gates 34, 44 and drains 33, 43 to output 2 and sources 31, 41 and substrates 32, 42 to respective supply terminals 3, 4. Then provided that the external load conductance is much larger than the source-drain admittances of all FET's which are themselves much smaller than the transconductances of the FET's, the voltage gain is given by the negated ratio of the combined transconductance of the "drive" FET's P10, N20 to that of the combined "load" FET's P30, N40. Although both transconductances change with supply potential, their ratio remains substantially constant; the value of the ratio is determined by the width to length ratio of the respective FET channels, or by the number of FET's connected in parallel in each position (Figs. 7, 8, 9, not shown). If the external load is capacitative (Fig. 3, not shown) the rise time on a step function input will depend on the amplifier output impedance which is effectively the sum of the load FET transconductances; these increase with supply voltage, reducing the impedance and rise time. The transconductance of each FET may be further controlled by connecting its substrate to a bias supply; either or both the load FET's may be connected with gate to the supply line and source to output (Fig. 4, not shown), in which case the substrate may be biased on the other supply line (Fig. 10, not shown); the conductivity type is chosen appropriately, not necessarily in a complementary pair (Figs. 5, 6, not shown).
Patent GB-1123659-A (GB)
Title: Improvements in and relating to high tension spark generators
Inventor: SAPICH DIETER
IPC: H05B43/00
Filed: 1967-06-15
Abstract: 1,123,659. Semi-conductor pulse generating circuits. TECHNISCH - PHYSIKALISCHE WERKSTATTEN THALHEIM VEB. 15 June, 1967, No. 27726/67. Heading H3T. A spark generator for spectrochemical analysis comprises a plurality of capacitors 4, charged from a three-phase supply 1 via rectifiers 3 and discharged via thyristors 6 into the primary of a common pulse transformer 5 the secondary of which feeds the spark gap 12. As described, centre-tapped secondaries of the isolation transformers 2 provide pulses at 12 of six times the supply frequency. The breakdown voltage of the spark circuit is predetermined by a further spark gap 10 bridged by a high resistance 11, the circuit being damped by resistor 8 and inductor 9.
Patent GB-908412-A (GB)
Title: Improvements in methods of producing heat treatable ferrous alloys and to such alloys
IPC: C22C29/00
Filed: 1960-08-10
Abstract: A heat-treatable ferrous alloy containing 20 to 90% by volume of primary carbide grains based on tungsten carbide distributed in a steel matrix is formed by liquid phase sintering a compacted mixture of the powders, the carbon content of the steel matrix exceeding 0.5% by weight to inhibit formation of large grains of a secondary carbide phase.  The steel matrix may be a carbon steel or alloy steel containing Cr, Mo, W, V, Co and up to 25% by weight of the tungsten carbide in the primary carbide may be replaced by Mo2C, Cr3C2, TiC and ZrC.  In an example, a powder mixture containing by weight 62% WC of 5.05 micron size, 37.81% Fe of 20 micron size and 0.19% carbon (equivalent to 0.5% carbon in the matrix) or paraffin-wax was pressed at 15 tons p.s.i. sintered in vacuum at 1450 DEG  C. and furnace-cooled from 1300 DEG  C.  The compact was annealed at 860 DEG C.  Depending on the composition of the steel matrix the processing conditions are: pressure 3-30 tons p.s.i.; sintering 1275 DEG -1600 DEG  C; annealing 900 DEG -1050 DEG  C.; hardening 875 DEG -1290 DEG C. with quenching in air, oil or water.  In an alternative method the primary carbide powder is compacted alone and sintered at 1000 DEG C. to 1600 DEG  C. in vacuum or hot pressed.  The porous carbide is then impregnated with the steel matrix under vacuum.
Patent GB-791393-A (GB)
Title: Motor fuel and method of preparing the same
IPC: C10L1/30
Filed: 1955-09-29
Abstract: A motor fuel comprises gasoline containing tetraethyl lead and an ethylene halide and the cyclohexylamine salt of 3-methylbutyl, 2-ethylhexyl acid orthophosphate.  The fuel contains between 0.3 and 1.5 times the theoretical amount required to convert the lead to lead phosphate.  The salt may be added to the gasoline as a solution in a hydrocarbon solvent such as toluene, or a concentrate comprising tetraethyl lead, ethylene halide, and the salt, may be added to gasoline.  Specifications 791,394, 791,395, 791,396 and 791,398 are referred to.
Patent GB-946049-A (GB)
Title: Adhesive compositions
IPC: C08G8/36
Filed: 1960-08-12
Abstract: 1 mole of phenol is reacted with 1.5 to 3.5 mole of formaldehyde in the presence of an aqueous solution of 0.1 to 2.5 mole of an alkali metal hydroxide, and to the resultant solution is added 0.10 to 10% of its weight of a polyethylene glycol, which is at least partially soluble both in water and in alkali and is solid at room temperature (preferably having a mol. wt. between 4,000 and 60,000).  The products are useful as adhesives especially for plywood.  Fibrous fillers and antifoaming agents may be included in the adhesive compositions.  U.S.A. Specifications reissue 23,347, 2,360,376 and 2,437,981 are referred to.
Patent GB-244432-A (GB)
Title: Improvements in inking mechanism for platen printing machines
IPC: B41F1/40
Filed: 1925-11-06
Abstract: 244,432. Gandenbergersche Maschinenfabrik G. Goebel. Dec. 9, 1924, [Convention date]. Inking-apparatus. - In inking-apparatus for platen printing-machines in which the inking- rollers travel past the forme in a circular path, the rollers are carried by rings mounted at the sides of the machine onantifriction rollers and rotated by the machine, the strip to be printed passing through the open apertures of the rings. The rings 12, supported on rollers 13 and driven by gears 15, Fig. 1, on the main shaft 16, carry one or more sets of inking-rollers 8 yieldingly mounted on carriers 9, Fig. 3. These carriers are laterally adjustable on cross-bars 10. to which they may be clamped by screws 11. The strip 2 to be printed passes through the rings over the bed 1 under the reciprocating forme carrier 4. The rings 12 may be arranged around the forme carrier instead of around the bed.
Patent GB-279943-A (GB)
IPC: A47J31/14
Abstract: 279,943. Pickford, J. S., and Legg, J. E. Aug. 4, 1926. Pots. - Relates to strainers for spouted vessels such as teapots, coffee - pots, and the like. The strainers, which are preferably of metal, are provided with a peripheral flange consisting of a single thickness of thin yieldable metal such as aluminium and of larger diameter than the internal spout opening, against which they are held in position by a fixed or adjustable rod or strut member. Fig. 1 shows a strainer 12 held in place by a rod or strut member comprising parts 10, 11 screwed into bosses in the strainer and in a similarly shaped metal " expansion" member 13 engaging the rear wall of the vessel. The parts 10, 11 are connected by a knuckle joint, the pivot pin 20 of which carries a T-shaped handle member 21 within which a thrust-piece 22 is slidable; the cross bar 23 of the thrust-piece can be made to bear on the inner ends of the parts 10, 11 to straighten the parts into the operative position shown. The strainer may, as shown in Fig. 4, be carried by a single rod 30 bolted through a hole in the breast of the spout, or the rod may be carried in a spider provided at the base of the spout. The strainers may be ribbed or corrugated. Specifications 13718/90 and 20720/92 are referred to.
Patent GB-599183-A (GB)
Title: Collapsible tube-like package for liquids or pastes
IPC: B65D75/58
Filed: 1946-02-28
Abstract: 599,183. Collapsable tubes. RADO, L. Feb. 28, 1946, Nos. 28023/46 (divided out of 599,174) and 27481/47 (divided out of 599,184). [Class 66] A collapsable tube, e.g., made from polyvinyl chloride tubing straight welded across its width at the closed end, and welded to form a neck 3, Fig. 2, at the other has a hole or slit 4 from which paste.&c. can only be extruded by both pressing the tube and bending the neck. In modifications, there is an opening on each side of the neck, and there may be a partition down the midde of the tube so that different pastes &c. may be extruded from either of the two compartments thus formed; there may be a number of parallel necks which may be sinuous, each having an opening; the neck may be flanked by a flap to act as a spreader, and the end of the flap may be fringed to serve as a brush ; the pliable neck 3 may be formed as a cap and nozzle to screw on to the end of a collapsable tube 1, Fig. 7 ; and a cover 11 may protect the pliable neck 3 for transport; a filling opening with an eyelet and screw closure may be provided in the body of the tube. Specification 599,174 is refered to.
Patent GB-1479547-A (GB)
Title: Programme selection particularly for liquid scintillation spectrometers
IPC: G06K7/10
Filed: 1975-07-03
Abstract: 1479547 Automatic control INTERTECHNIQUE 3 July 1975 [5 July 1974] 28058/75 Heading G3N The selecting of a program from a plurality of available programs, for carrying out a process on a succession of samples on a conveyer, is effected in response to a marker device, removably located in the conveyer, which causes a card bearing an appropriate program to be read-out and stored to control the process. As shown, a marker 16 is inserted in a cassette 15 of a conveyer system and an address on the marker is read by an optical device 44 and routed to a programming device 52. The address is used by the device 52 to call up a program on a card held in a reader 14. The program is transferred through an output 50 to a buffer store 17. The contents of the buffer store is routed through a switch 13 and a matrix 12 to a main store forming part of a spectrometer 10. The card-reader 14 contains addressable locations in each of which a card can be held. A card is released by a pushbutton 25 and, when addressed, indicated by a lamp 24. A code may be provided on the marker 16 whereby a program, set up on a panel 11, can be called up by actuating a switch 13 by the device 52 through a relay 45. The marker 16 carries a visual indication of the corresponding in reader 14 of a program-card and has a shaped base indicative of the nature of the contents of the cassette 15. On an alternative arrangement the marker comprises cam surfaces actuating a contact-operated device. The programcards preferably have a format corresponding to the layout of the manual controls 11 and erasable for program change.
Patent GB-1242787-A (GB)
Title: Seal construction
IPC: F16J15/447
Filed: 1969-06-04
Abstract: 1,242,787. Turbines; axial-flow compressors. UNITED AIRCRAFT CORP. June 4, 1969 [June 5, 1968], No.28167/69. Headings F1C and F1T. [Also in Division F2] A seal construction in, for example, a gas turbine or compressor is such that the clearance between fixed and rotating members of the seal is substantially unaffected by changes in temperature. A gas turbine 2 has labyrinth type seal members 28, 29 connected by flexible spacers 34, 38 to rotor discs 4, 6. The members 28, 29 co-operate with surrounding fixed seal members 40, 42 supported from casing 16 by flexible spacers 54, 56. All the seal members 28, 29 and 40, 42 and their supports have substantially the same co-efficient of thermal expansion and the seal members the same thermal response rate so that seal clearances are substantially independent of temperature and depend only on the rotational growth of members 28, 29 with increase in rotor speed. The maximum clearance may be 0À38 m.m. decreasing to 0À2 m.m. at maximum rotor speed.
Patent GB-279848-A (GB)
IPC: H04M1/03
Filed: 1927-10-24
Abstract: 279,848. Siemens & Halske, Akt.-Ges. Oct. 27, 1926, [Convention date]. Hand-combination sets. - Relates to handcombination sets of the kind in which the diaphragms of the transmitter and receiver are arranged obliquely to one another and in which the handle 1 is stamped out or die-cast in one piece so as to provide hollow spaces for the reception of the casings for the transmitter and receiver and consists in so arranging relatively to one another the surfaces of the spaces 2, 3, which receive the transmitter and receiver respectively, that the cores or stamps 5, 6 can be rigidly connected together by the cross-piece 4 and introduced and withdrawn simultaneously. The handle 1 is made of a non- conducting material, such as the substance known under the registered Trade Mark " bakelite."
Patent GB-603649-A (GB)
Title: Improvements in sound-reproducing devices
IPC: H04R9/02
Filed: 1945-10-26
Abstract: 603,649. Sound reproducing instruments. JOHNSON, A. H. Oct. 26, 1945, No. 28283. [Class 40 (iv)] A sound reproducing device includes a field magnet having a centre pole 10 and an outer pole 8 separated by an air gap into which projects a coil connected to a diaphragm supported by a chassis 6 which is made of magnetic material and is secured to the magnet as shown so that it defines part of the outer surface of the air gap. The chassis may be made of mild steel, the body 12 of the magnet of magnetic alloy and the polepiece 8 and back plate 11 of soft iron.
Patent GB-245893-A (GB)
Title: Improvements in or relating to electrical controllers for hoists
IPC: B66C13/54
Filed: 1924-11-26
Abstract: 245,893. Electro-Mechanical Brake Co, Ltd., and Pattison, M. J. Nov. 213, 1924. Controllers, actttati ng and restraining.-In a hoist controller operated by a rope-wheel, the wheel is made with a projection 4 which encounters a stop 7 at the neutral position to prevent accidental movement beyond it. The stop is mounted on a slide 10 and is lifted against a spring 8 into the path of the wheel-projection by cams 5. If the wheel is moved slowlv the stop has time to return past the end of the cam and is inoperative.
Patent GB-780290-A (GB)
Title: Improvements in stainless steel
IPC: C22C38/32
Filed: 1955-10-05
Abstract: A stainless steel which may be subjected to a rolling operation and to a hardening treatment, for example in the production of knife blades, has a composition in the following range: C, 0.2-1.0 per cent; Cr, 11.5-15.0 per cent; Mn, 0.15-2.0 per cent; Si, 0.15-1.0 per cent; Co, 1.0-6.0 per cent; B, 0.001-0.005 per cent; Fe, the balance except for impurities including not more than 0.04 per cent each of S and P.  In an example a steel within the range was heated to 1082 DEG C. reduced in thickness by 1/4 inch in each of nine passes through a rolling mill to form a sheet 3/16 inch thick at a finishing temperature of 788-815 DEG C. The sheet was reheated at 1082 DEG C., rolled to 3/32 inch, annealed at 788 DEG C. for five hours, formed into knife blades and then quenched from 1038 DEG C. in water.
Patent GB-464406-A (GB)
Title: A process for working up untanned animal hyde material
IPC: A22C13/00
Filed: 1935-10-15
Abstract: In processes for working up untanned hide material by forming a highly swollen fibrous paste by treatment with chemical swelling agents and, if desired, mechanical treatment and extruding this paste through shaping nozzles, the materials are kept at a temperature not above 22 DEG  C. throughout the whole of the operation by carrying out the treatments in cooled machines and apparatus. Specifications 313,747, [Class 28 (ii)], 429,039, 429,040; 445,721, [Group IX], 452,348; and 456,726, [Group VIII], are referred to.
Patent GB-743587-A (GB)
Title: Resinous nitrile reaction products and their method of preparation
Inventor: SEAR DEREK WILLIAM
IPC: C08C19/00
Filed: 1953-10-26
Abstract: A polymer containing nitrile groups, e.g. a butadiene/acrylonitrile copolymer, is reacted with a polyhydric phenol, e.g. resorcinol or Quebrache extract, and a lower aliphatic ketone such as acetone or methyl ethyl ketone. Preferably the polymer containing nitrile groups is reacted with a preformed resinous reaction product of the phenol and ketone. The reaction is carried out in the presence of a catalyst such as dry hydrogen chloride, para-toluene sulphonic acid and its acid chloride, and zinc chloride, and results in products containing keto-unine groups, which may be hydrolysed to keto groups with steam or hot water.  The products are rubbery materials which can be cured by means of sulphur or hexamethylene tetramine, and may be used as adhesives.
Patent GB-483655-A (GB)
Title: Heating apparatus
Filed: 1936-10-22
Abstract: 483,655. Air - heating apparatus. DEMARCAY, P. C. L. Oct. 22, 1936, No. 28711. Convention date, Oct. 22, 1935. [Class 64 (i)] [Also in Group XI] In an air-heating stove with a stepped grate 8, a hopper above the grate and a movable member 19 for controlling the outlet of fuel, the movable member is a cone which can be displaced vertically relatively to the grate and hopper, and can be engaged in the hopper. The grate comprises three superposed annular elements, each composed of two concentric rings 10, 40, joined by arms 11, and radial bars 13 which leave a central space 9 for the passage of the cone 19. The bars 13 may be inclined and have their inner ends bevelled. The outer ring rests in a groove in the ash-pit wall 4 and has a radial arm 12 by which the grate element can be rotated to dislodge ash. Alternatively, the grate elements may be perforated annular plates. The cone 19 has a base cylinder 23 guided in a collar 26, and is movable by a lever 20 or by a cable or rod connected to a hook 21. Primary air is supplied through controlled openings 28. The hopper 1, which has double walls, rests on a short hollow cylinder 3 carried by hollow arms 3a, 3b, &c. Secondary air for combustion enters through passages 5 in the wall 4 on which the arms rest, and passes up through these arms and through the hollow walls of the cylinder 3 and hopper 1, and through outlets 30 to the upper part 15 of the combustion chamber. Air for distribution to rooms is heated by being passed either through tubes or through the space between walls 17, 41, 14 leading into a chamber 15 with outlet conduits 18.
Patent GB-408568-A (GB)
Title: The conversion of masses of waxes or wax-like materials into comparatively small pieces of arbitrary size
IPC: C10G73/40
Filed: 1932-06-29
Abstract: Wax-like chlorinated hydrocarbons mixed or not with other substances are formed into small pieces of arbitrary size and shape, e.g. scales or platelets, by allowing the molten material to solidify as a film on a cool surface such as a rotating drum, and breaking up the film.