baber/WOPTO huggingface dataset:
Patent GB-848871-A (GB)
Title: Piston valves
Inventor: DANGERFIELD ALFRED CHARLES
IPC: F16K3/26
Filed: 1955-12-13
Abstract: 848,871. Valves. NAPIER & SON Ltd., D. Dec. 13, 1956 [Dec. 13, 1955], No. 35808/55. Class 135. A valve member 2 slidable in a casing 1 to control flow between an annular inlet port 5, connected to a supply line 4 and a permanently open annular outlet port 6, 4, comprises spaced lands 8, 9 separated by a portion which gradually decreases in diameter from the inlet land 8 to a minimum diameter at 11 and then increases in diameter in a smooth curve 13 up to the land 9 to provide gradual opening and closing of the inlet port 5 to reduce instability.
Patent GB-985181-A (GB)
Title: Non-synchronous electrical switch circuits
Inventor: MASON GUY
IPC: H03K17/28
Filed: 1962-09-20
Abstract: 985,181. Relay circuits. HIRST ELECTRONIC Ltd. Dec. 2, 1963 [Sept. 20, 1962], No. 35886/62. Heading H2H. A circuit for energizing a relay coil 16 for a given period irrespective of the period that a switch 20 is closed comprises a capacitor 18 which is discharged through a diode 21 and coil 16 when the switch 20 is closed, causing contacts 16b to change over allowing another capacitor 23 to discharge through parallel paths comprising the lower part of a potentiometer 27, and the upper part of potentiometer 26, a diode 25 and the coil 16, which coil remains energized until capacitor 23 is discharged. Until switch 20 is released, capacitor 18 cannot recharge through diode 19. A switch 24 and capacitor 22 give an alternative folding time for the relay. A contact 16a controls an external circuit 20. Another circuit is described in the Specification whereby the capacitor 18 is charged on closure of the switch 20.
Patent GB-800760-A (GB)
Title: Improvements relating to the manufacture of cereal products
Inventor: MEZCIEMS DAVIS JEKABS IVARS
IPC: A23L1/164
Filed: 1956-11-26
Abstract: In producing puffed cereals, a dough from a cereal flour is rolled into sheets, two sheets are superposed, from which shaped pieces are cut out by a die and heat-treated e.g. in an infra-red tunnel, convection oven or by dielectric heating, at 400 DEG F. Pregelatinised starch is preferably mixed with the cereal flour prior to making the dough.
Patent GB-1502898-A (GB)
Title: Compressible mine support
IPC: E21D15/00
Filed: 1975-09-02
Abstract: 1502898 Deformable mine support MINE SUPPORT SYSTEMS (PTY) Ltd 2 Sept 1975 [5 Sept 1974] 36173/75 Heading E1E A mine prop comprises at least one elongate timber element 16 surrounded by at least one sleeve 10, 12 of ductile metal, with the grain of the timber parallel to the axis of the sleeve(s), whereby, when an axial load is applied to the prop, it gradually reduces in length, the ductile sleeve(s) being deformed and containing the compressed and transversely expanding timber. Preferably there are two sleeves telescopically engaged as shown, each holding tightly a respective timber element, with a spacer 20 for initial adjustment of the length.
Patent GB-418883-A (GB)
Title: Improvements in liquid brake systems
IPC: G01F23/36
Filed: 1933-12-27
Abstract: 418,883. Indicating liquid levels. WHITE, J. W., 18965, Muirland Avenue, Detroit, Michigan, U.S.A. Dec. 27, 1933, No. 36344. Convention date, Jan. 3. [Class 123 (i).] A device for indicating when the liquid in the supply chamber of a hydraulic brake falls to a low level comprises a float 24 on an arm 26 pivoted at 22 to a plate 15 forming part of the wall of the supply chamber 7. The arm has a projection 21 which forms an electric contact and which when the liquid level falls sufficiently, contacts with a plug 17 insulated from the plate 15 and thus closes an electric circuit which includes a warning lamp. In the case of a motor vehicle, the lamp may be arranged on the dash-board and the circuit may include the ignition switch so that the circuit can only be completed when this switch is closed. As shown, the chamber 7 is mounted on the master cylinder of the hydraulic brake system that it supplies.
Patent GB-302184-A (GB)
Title: Improvements in or relating to the production of light-sensitive layers by means of diazo compounds
IPC: G03C1/54
Filed: 1928-12-10
Abstract: 302,184. Kalle & Co. Akt.-Ges. Dec. 10, 1927, [Convention date]. Diazotype processes. - Diazo-compounds of amino-naphthol-carboxylic acids in acid, neutral, or alkaline condition are used in the preparation of light-sensitive layers on paper, cellulose film &c. supports. If negative pictures are required layers in acid condition are subjected to a short treatment with ammonia gas before exposure to light. Metal salts may be included in the layers or be applied in solution to the finished pictures, to improve the tint and stability of the pictures. The stability of the layers may also be increased by including therein gelatin or a stabilizing agent such as naphthalene trisulphonic acid. In an example, a base coated with a solution of 1-diazo-2-hydroxy-3-naphthoic acid and caustic soda is developed with water after exposure to light. Reference is made to layers sensitized with diazo-salicylic acids, and the diazo-compounds described 4 in Specification 210.862. The Specification as open to inspection under Sect. 91 (3) (a) also describes the use of toluenesulpho acid, boric acid, tartaric acid, trisodium phosphate, or thiosulphate as stabilizers. This subject-matter does not appear in the Specification as accepted.
Patent GB-930742-A (GB)
Title: Sheet packaging arrangement
Inventor: SCOTT DOUGLAS THOMPSON
IPC: B65D83/08
Filed: 1961-10-12
Abstract: 930,742. Cartons for dispensing tissues. SCOTT PAPER CO. Oct. 12, 1961, No. 36623/61. Classes 18 and 94(1). A receptacle 11, of cardboard or the like for dispensing tissues 12 and the like stacked therein has an apertured cover 13 through which the tissues are withdrawn and a lightweight control plate 16 also of cardboard or similar material loosely fitted within the receptacle said plate being movable towards the cover aperture 14 by withdrawal of the uppermost tissue of the stack, subsequently returning to rest on the tissue below and having an opening 15 through which the tissues are withdrawn which is relatively narrow in places to distort a sheet dispensed therethrough and to increase frictional contact between this sheet and the one with which it is interfolded, and relatively wide in another part to allow several tissues to be removed together. The tissues are stacked as shown in Fig. 3. As the uppermost tissue 18 is dispensed its edge portion 24 lifts and draws along the overlying portion of the next tissue 19 to present the portion 22 in an accessible position above the opening 15, the control plate 16 acting to increase the frictional engagement between the two tissues. The control plate may be made of bendable material so that it can be removed from the receptacle if desired. Specification 917,049 is referred to.
Patent GB-952232-A (GB)
Title: Manufacture of dicalcium phosphate
IPC: C01B25/32
Filed: 1961-10-12
Abstract: Anhydrous calcium hydrogen phosphate is prepared by adjusting the pH of calcium hydrogen phosphate in an aqueous medium to 2.5-5.5, heating to 65 DEG  C. up to the boiling point until the pH falls below its initial value to a value in the range 2.2-3.6 and recovering the resultant anhydrous phosphate from the aqueous medium.
Patent GB-952775-A (GB)
Title: Improvements relating to mixtures of alkali metal phthalocyanines and metal-free phthalocyanine
IPC: C09B47/00
Filed: 1961-10-13
Abstract: Mixtures of alkali metal and metal-free phthalocyanines are made by heating phthalonitrile with an anhydrous alkali metal sulphide in the absence of alkali metals at temperatures of 100-300 DEG  C., if desired in the presence of diluents such as sodium sulphate, sodium chloride, urea, sodium xylene sulphonate, formamide, diethylene glycol monoethyl or monomethyl ethers, pentaerythritol, methoxy- or ethoxyethanol, 2 : 21-dihydroxy-diethyl thioether and mixtures of such alcohols with xylene or 1 : 2-dichlorobenzene.  The alkali metal sulphides used are disodium sulphide and the sodium, potassium and lithium sulphides obtained by reacting sulphur with the appropriate alkali metal hydroxide.  The mixtures of phthalocyanines obtained are hydrolysed to metal-free phthalocyanine by heating with caustic soda solution.  Examples are given.
Patent GB-761221-A (GB)
Title: Electric potential producing cell
IPC: H01M6/18
Filed: 1954-12-21
Abstract: 761,221. Batteries. RUBEN, S. Dec. 21, 1954 [Jan. 4, 1954], No. 36869/54. Class 53. A potential producing dry cell has a solid electrolyte comprising tin sulphate and co. operating electrodes in contact therewith. Fig. 2 shows a cell having a disc 13 of solid tin sul. phate sandwiched between a negative electrode 12 of nickel or nickel-plated steel and a negative electrode of lead peroxide 15 coated on a carbonized iron base 14. A number of such cells are mounted upon each other and in series within a cylindrical container as in Fig. 1 (not shown). Lead or tin may be used instead of nickel as the negative electrode, while the positive electrode may comprise oxides of manganese, mercury, silver, copper or graphite mixture with these oxides or permanganates.
Patent GB-1183962-A (GB)
Title: Production or Rimmed Steels
Inventor: CONEY AIMS CHAMBERLAIN JR
IPC: C21C7/06
Filed: 1967-08-10
Abstract: 1,183,962. Refining steel; fluxes. A.C. CONEY. Aug.10, 1967 [Oct. 31, 1966], No. 36874/67. Headings C7D and C7M. In the production of rimmed steel there is added during teeming into the mould 0À5 to 3 1b. / ton of steel of a rimming agent comprising reactive carbon 40-60% calcium or sodium fluoride 5-20% sodium carbonate 5-20% aluminium 0-20%
Patent GB-511672-A (GB)
Title: Improvements in or relating to dry shaving machines
IPC: B26B19/16
Filed: 1938-12-19
Abstract: 511,672. Dry shavers. KORTEN, E., and BASSAT (LONDON), Ltd., A. & H. Dec. 19.1938. No. 36895. [Class 131] In a dry shaver having a rotating inner cutter 10 with blades 13, the semi-cylindrical guard plate 2 is provided with two series of slots 6, 7 inclined at right angles to one another on opposite sides of a strip 8. The driving spindle 21 is arranged at right angles to the axis of the cutter 10. The blades 13 are secured to the rotor 10 by curved members 14 and screws 15.
Patent GB-394890-A (GB)
Title: Improvements in or relating to drills for coal and rock
IPC: E21B10/44
Filed: 1932-12-30
Abstract: 394,890. Drills. MOND, A. L., 19, Southampton Buildings, London.-(Union Ges. f³r Bergwerks-und H³ttenbedarf; 7, Kaiserstrasse, Beuthen, Upper Silesia, Germany.) Dec. 30, 1932, No. 36945. [Class 83 (iii).] A drill for coal, rock, and the like of the kind having cutting teeth arranged eccentric to the axis is characterized in that one part c, a<1> of each of the cuttng edges cuts over a common annular section while the other parts b, a<11> each cut over a separate concentric annular section. Sockets.-Connection between bit and shank is by a spring- pressed detent m and a shoulder p to resist the torque.
Patent GB-619604-A (GB)
Title: Improvements relating to electric circuit breakers
IPC: H01H71/46
Filed: 1946-12-16
Abstract: 619,604. Automatic circuit-breakers. ROTAX, Ltd., and BOURNE, W. G. Dec. 16, 1946, No. 36982. [Class 38 (v)] A three-phase, solenoid-closed and overloadreleased circuit-breaker comprises contacts e on spring-loaded fingers f pivoted at g to an arm c pivoted at d to the frame a. Toggle links m, n pivoted to the arm c at q and at r to a lever s pivoted at t, have a joint pin p engaged by a slotted link w connected to the plunger v of the closing solenoid u. A tripping toggle 3, 4 pivoted at 8 to the lever s and at 7 to a fixture, is overset and held by a spring-blade 5, thereby normally locking the lever s. Energization of the solenoid u raises the link w to overset the toggle m, n and close the breaker, and a roller 2 on the pin p engages a spring- blade x to open contacts y, z, Fig. 2, and deenergize the solenoid, the plunger of which descends, leaving the toggle m, n set. Raising the pin 6 to break the toggle 3, 4 releases the lever s allowing the spring-blade x to move the toggle m, n over-centre and spring o then rocks the arm c to open the breaker. The pin 6 may be raised either by a spring-loaded, push-button actuated lever 9 pivoted at t, or by a stud 15 on a trip-lever 12 pivoted at 13 and actuated by the plunger 17 of a solenoid 16. The solenoid 16 may be energized either by a push-button switch or by closure of contacts 18, 19 by a lever 22 on an armature 24 actuated by overload windings 26 in series with the contacts. The spring 5 resets the toggle 3, 4 for the next closing operation.
Patent GB-1319699-A (GB)
Title: Sleeve for a filter nozzle
IPC: F16L37/084
Filed: 1971-08-10
Abstract: 1319699 Filter nozzle ROBERT KRAUSE KG 10 Aug 1971 [14 Sept 1970] 37491/71 Heading BID [Also in Divisions E2 and F2] A filter nozzle 5 has a mounting tube 4 which engages in a support sleeve 1 embedded in concrete (not shown) by means of ramps 6 which slide down grooves 7, on insertion, and snap under shoulder 3. To release the filter, it is rotated so that circumferential ramps 8 which press the ramps 6 inwardly, Fig. 2, freeing them from the shoulder and enabling the tube 4 to be pulled up. A temporary mapin lid 12 may be provided. The unit is of plastics.
Patent GB-1351168-A (GB)
Title: Pulse forming circuit arrangement
IPC: H01F38/08
Filed: 1971-08-11
Abstract: 1351168 Supply circuits for flash lamps HUGHES AIRCRAFT CO 11 Aug 1971 [12 Aug 1970] 37643/71 Heading H2H [Also in Division H1] A circuit for supplying pulses to a flash lamp 12 comprises a transformer 14, the primary windings P 1 , P 2  of which are adapted to receive a trigger pulse from a source 15 and the secondary windings S 1 , S 2  of which are located on sections 18, 19 of the core of low saturation material. The primary windings P 1 , P 2  are connected in series and positioned on sections 16, 17 of the core formed of high saturation material such as silicon steel. The secondary windings S 1 , S 2  are connected in parallel and are also connected to a capacitor 10 charged by a circuit 11. The application of a pulse to the primary windings triggers the discharge of the capacitor through the secondary windings and the lamp. The initial current depends on the inductance of the secondary windings which is initially high but is reduced when the sections 18, 19 saturate so that the core then behaves as an air gapped core. The tightness of the secondary windings around the saturable core sections 18, 19 and the fact that the current is kept below the saturation level for the sections 16, 17 prevents the emission from the transformer of interfering electromagnetic radiation. The sections 18, 19 are made of ferrite and the flash lamp may be used with a laser.
Patent GB-955938-A (GB)
Title: Improvements in linings for watercourses and like purposes
IPC: E02B3/12
Filed: 1962-10-05
Abstract: 955,938. Linings for watercourses. RIVER & SEA GABIONS (LONDON) Ltd. Oct. 5, 1962 [Oct. 5, 1961], No. 37812/62. Heading E1H. A unit to be erected into a rectangular container to be filled with stones and used as a lining for a watercourse comprises a metal mesh rectangular sheet forming a bottom panel 1 and side panels 2 and 3 and transverse metal mesh rectangular panels 10 secured to the panel 1 at equal intervals, each panel 10 being bent L-shaped to form a partition 15 between adjacent cells and a top closure 16 for one of the cells. The arrangement provides for the panels to be manufactured as flat units and bent and erected on site. The metal mesh may be coated e.g., with polyvinyl chloride.
Patent GB-920923-A (GB)
Title: Method for continuous tube production
IPC: B65B9/20
Filed: 1961-10-23
Abstract: 920,923. Packaging machines. HERMORION Ltd. Oct. 23, 1961 [Oct. 28, 1960], No. 37890/61. Class 94(1). [Also in Group XXVIII]. A web 2 of relatively thick paper coated on one side with heat-sealable plastic and on the other side with wax or plastic material, is folded by rollers 6, 7 along its longitudinal centre line and is then passed around rollers 8, 12 and through a forming ring 15, the longitudinal edges then being heat-sealed together by a sealing element 16 and roller 17 to form a tube 13. The folded web 2<SP>1</SP> encircles a filling pipe 14 supported by an arm 19 projecting between the web edges, the pipe 14 being connected to a supply pipe 20. The pipe 14 is provided with a counter-pressure roller (not shown) located opposite the sealing roller 17. Filled and sealed packages of tetrahedron shape are formed from the tube 13 by means of vertically reciprocating yokes 21, 22 each provided with clamping jaws (not shown) arranged in mutually perpendicular plans for heat sealing the tube and severing the sealed and filled package from the tube. The arrangement is such that while one yoke 21 moves upwardly, the other yoke 22 moves downwardly with its jaws in engagement with the tube 13 to move it downwardly and draw a length of web from the supply roll 1. The clamping jaws of the yoke 21 then engage the tube 13 to heat seal the tube and then moves downwardly to sever the then formed package from the sealed end of the tube. Specification 691,649 is referred to.
Patent GB-1280035-A (GB)
Title: Improvements in cutting tool holders for indexable cutting inserts
IPC: B23C5/02
Filed: 1969-07-29
Abstract: 1280035 Cutters VALERON CORP 29 July 1969 [6 Aug 1968] 37987/69 Headings B3C and B3K A boring or milling cutter for forming 90 degree shoulders comprises a plurality of square indexable cutting inserts 26, Figs. 1, 2, located in cartridges 22 mounted in the cutter body 20 so as to have a negative radial rake and a positive axial rake. Each cartridge has an insert 26 clamped by a clamp 28, and a chip breaker 30. A milling cutter 70, Fig. 7, has two inserts 74 held in pockets in seats 72 by wedges 76 actuated by screws 78.
Patent GB-1027809-A (GB)
Title: Improvements in or relating to sliding roof constructions for motor vehicles
IPC: B60J7/02
Filed: 1963-09-26
Abstract: 1,027,809. Sliding roofs. H. T. GOLDE G.m.b.H., H. GOLDE, and M. LOFFLER, [trading as H. T. GOLDE G.m.b.H. & CO. KOMM. - GES.]. Sept. 26, 1963 [Sept. 26, 1962], No. 38050/63. Heading B7B. A roof panel of a sliding roof construction is guided by shoes engaging guides 14 secured along the lateral sides of the roof aperture. The guides have part-cylindrical recesses 33, 34 to accommodate actuating cables for the roof panel and are secured in position by deforming pressed-out lugs 13, 13<SP>1</SP>. The channel formed by the lips 35 36 guides the inner trim panel of the roof panel. The rear part of the guides may be closed by a resilient channel member 38.
Patent GB-1304402-A (GB)
Inventor: FRENZL A
IPC: H01M50/466
Filed: 1970-01-19
Abstract: 1304402 Making containers VARTA GmbH 19 Jan 1970 [12 April 1969] 38073/72 Divided out of 1304401 Heading B5D [Also in Division H1] The subject matter of this Specification is identical with that of the Specification 1304401 except that the claims are directed to a cupshaped separator and its method of manufacture,
Patent GB-978794-A (GB)
Title: Sample-supply device for analysis apparatus
IPC: G01N35/08
Filed: 1962-10-09
Abstract: 978,794. Sequentially supplying liquid samples. TECHNICON INSTRUMENTS CORPORATION. Oct. 9, 1962 [Oct. 20, 1961], No. 38123/62. Heading B1X. A liquid sample supply device for analytical apparatus comprises a carrier 16 for a row of containers 18 for the liquid samples, a take-off device 24 having a tubular part movable into and out of said containers for withdrawing liquid therefrom and a receptacle 38 for washliquor positioned laterally of the row of carriers, the carrier 16 being adapted to move in the direction of the row of containers and the tubular part of the take-off device being movable also into and out of the wash liquid receptacle. The above numerals refer to Fig. 3, in which the desired movement of the take-off device 24 into and out of the container 18 and receptacle 38 is effected by clamping the device to a vertical rod 56 which is movable up and down by a cam-operated lever 62 engaging a grooved wheel 60 attached to rod 56. After withdrawal of a liquid sample or of wash liquid, the take-off device is moved into the next withdrawal position by rotation of rod 56 effected by the action of a cam-operated lever 84 on a pin 92 carried by an arm 90 fixed to the rod 56. The cam-operated levers 62 and 84 are motivated by a common cam wheel 78 linked to a Geneva gear for effecting step-wise rotation of carrier 16 of the type described in Specification 834,635. The tube 30 of the take-off device is connected via conduit 128 to a proportioning pump 32 described in Specification 817,070 (see Fig. 1). A stream of liquid samples separated from each other by intervening segments of wash liquid each disposed between a pair of air segments is drawn into tube 30 of the takeoff device. The segmented stream is then fed via the pump to an analysis apparatus, comprising a pump, dialyser, and colorimeter, as described in Specification 774,711. The wash receptacle 38 is preferably of the constant head type being provided with a narrow inlet 44 and an overflow chamber 60,having a wide liquid outlet 48.
Patent GB-837768-A (GB)
Title: Tuyere block (blowing head) for the side walls of underfeed stokers
IPC: F23K3/12
Filed: 1956-12-17
Abstract: 837,768. Air supply to underfeed furnaces. GROENEMA, J. J. Dec. 17, 1956 [Dec. 16, 1955], No. 38352/56. Class 51 (1). The upper part of a tuyere block for an underfeed stoker is divided by vertical slots into laminations 8, small enlargements 10 of the slots forming rows of air inlets along and perpendicular to the slots, and a few larger air inlets 12 are formed in the non-laminated lower part 7 of the block. A main segment 7 of a tuyere block, supported by the wall 3a of the underfeed stoker and the casing 6 of the air-box surrounding it, has arms 11 at its lower front face co-operating with arms on adjacent segments 7 to form large air inlets 12. Ridges 9 on the sides of the segment 7 co-operate with ridges 9 on auxiliary segments 8 to form rows of small air inlets 10 at the upper part of the front face and at the top of the block. Lugs 16 at the lower front face of the segments 8 engage in recesses 17 in the uppermost arms 11, and the rear of the segments 8 are supported by a ledge 15 on the rear wings 13 of the main segment 7. A rod 20 passing through the segments 7 and 8 holds the assembled blocks together to form the tuyere blocks of the furnace. The upper parts of the segments 7 and 8 together are of less width than the rear wings 13 and arms 11 to allow for expansion.
Patent GB-371852-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1930-12-20
Abstract: 371,852. Cylinders. WESLAKE, H., 35, Redcliffe Road, South Kensington, London, and AUTOMOTIVE ENGINEERING CO., Ltd., The Green, Twickenham, Middlesex. Dec. 20, 1930, No. 38465. [Class 7 (ii).] A lateral combustion chamber 1 is connected to the cylinder by two passages 5, 6, one of which may extend further into' the cylinder than the other. The partition 7, forming the passages, is rounded at 10 adjacent the exhaust port 4 to ease the flow of mixture from the inlet port 3. The sparking-plug, located in a socket 11, is cooled by mixture forced through an additional passage 20 during the compression stroke. The partition 7 need not extend beyond the cylinder bore, the passages 5, 6 then uniting and combining to form a passage which may be arcuate as shown in Fig. 3. The passages 5, 6 may converge towards the bore and the cross-sectional area of the passage 5 is, preferably, greater than that of the passage 6 ; their combined cross-sectional area is at least equal to that of the ports, but the area of the clearance space 14, between the head and the piston crown, is as large as possible. The depth of this clearance space is the minimum necessary for mechanical reasons ; a similar space may be left between the partition 7 and the cylinder block. The inlet and exhaust ports may be opposed in the chamber 1, or the exhaust port alone may be in the chamber, the inlet port being over the bore. The chamber 1 may be overlapped by the piston which then has cavities to correspond to the two passages.