baber/WOPTO huggingface dataset:
Patent GB-1001906-A (GB)
Title: Reciprocating pumps
IPC: F02M59/36
Filed: 1962-09-03
Abstract: 1,001,906. Fuel injection pumps; starting fuel injection engines. SOC: POUR L'EXPLOITATION DES PROCEDES CHIMIQUES E.T. PHYSIQUES S.A. Sept. 3, 1962 [Sept. 15, 1961], No. 33659/62. Headings F1A and F1B. In a self-regulating fuel injection pump comprising a shuttle 8 controlling the by-pass 10 of pump piston 1, shuttle 8 is moved outwardly in synchronism with piston 1 to open by-pass 10 by pressure from a piston 34 and is returned by a spring 11, the length of its return stroke being determined by a stop 13 automatically adjustable by means responsive to engine speed. At the end of the return stroke of piston 34, the circuit between it and shuttle 8 is filled with liquid via inlet 36 from a source at a pressure insufficient to raise shuttle 8 against spring 11. In one embodiment, Fig. 1, the engine speed-responsive means comprises a piston 17 subjected to the output of an engine-driven gear pump 79 and loaded by a spring 18 adjustable by a manually operated lever 27 to set the running speed of the engine. Adjustment of the maximum displacement of piston 17 is provided by a screw 30. Starting, running and stopping settings for shuttle 8 are provided by adjusting the position of the pivot X of lever 14 connecting stop 13 to piston 17. In the starting position shown, stop 13 is lowered so that shuttle 8 closes by-pass 10 and opens a throttled passage 43 to by-pass the delivery of piston 34. When the engine starts, the back pressure in passage 43 is sufficient to raise shuttle 8 to close passage 43 and regulate the pump delivery. When lever 14 is in its running position, stop 13 is raised so that passage 43 is permanently closed, the delivery then being regulated by piston 17 according to the setting of lever 27. When lever 14 is in its stopping position, shuttle 8 is raised so that by-pass 10 is permanently open. In another embodiment, stop 13 is adjustable by a mechanical governor. In another embodiment, Fig. 6, the starting, running and stopping settings of shuttle 8 are provided by adjusting its angular position by a rotatable guide 47. In its starting position shown, the delivery of piston 34 is by-passed via passage 43b. For stopping, shuttle 8 is rotated to align grooves 48 with by-pass 10. The running position is intermediate the starting and stopping positions. Piston 34 may be replaced by an intermittent distributor. The pump cylinder may be in a rotary block surrounding a stationary cam and may be supplied by a feed pump. Specifications 903,504, 916,640, 921,051 and 931,197 are referred to.
Patent GB-1192328-A (GB)
Title: Writing Instruments
IPC: B43K8/18
Filed: 1968-07-15
Abstract: 1,192,328. Drawing-pens. STANDARDGRAPH FILLER & FIEBIG G.m.b.H. 15 July, 1968 [17 July, 1967], No. 33678/68. Heading B6P. A characteristic of a nib holding unit is indicated by a coloured plastic insert 5, secured by swaging of a rim of cap 3.
Patent GB-1204300-A (GB)
Title: Radioisotope heat source
IPC: G21G4/06
Filed: 1969-07-04
Abstract: 1,204,300. Utilizing energy of radiations. UNITED STATES ATOMIC ENERGY COMMISSION. 4 July, 1969 [9 Aug., 1968], No. 33728/69. Heading G6P. In a radioisotopic heat source, thulium oxide rods are used, comprising 169 Tm 2 O 3 , and are irradiated in a thermal-epithermal reaction flux. During irradiation, 170 Tm 2 O 3  is formed which has a half-life of four months and a part epithermal flux is employed, owing to the high thermal-neutron cross-section of thulium, so as to facilitate neutron penetration of the rods. The thulium oxide rods, 11, are mounted in the heat exchange medium 13, formed of compacted tungsten powder, from which heat is extracted through the coolant tubes 17 by a coolant, e.g. water or helium.
Patent GB-618833-A (GB)
Title: Improvements in razor blade sharpening devices
IPC: B24D15/08
Filed: 1946-11-14
Abstract: 618,833. Sharpening razor blades. CLARE, E. Nov. 14, 1946, No. 33776. [Class 60] A razor blade sharpening, honing or stropping device comprises a shuttle adapted to enshroud a razor blade mounted on a fixed cross-bar in a frame, the shuttle being capable of oscillation about the axis of the said cross-bar and consisting of a pair of plates hinged together at one end, the surfaces of which are adapted to hold the surface of a strop, or alternatively a honing element, against opposite edges of the blade. A razor blade 13 to be sharpened is held by a slotted pin 14 on to a fixed cross-bar 12, having pips to engage holes in the blade, of a fixed frame 1. A shuttle comprising two flanged plates hingedly fixed together at one end is loosely mounted on the cross-bar 12 so as to enshroud the blade 13 and pivot about the pin 14. The shuttle is formed with internal ribs 19, 20 and cross-bars 8 to press a strop 15 against opposite edges of the blade 13 when one end of the strop is pulled, the strop passing over a roller 11 in the fixed frame 1. Spring- mounted plates may be carried by the shuttle to help press the strop against the blade edges. The pips on the cross-bar 12 may be slightly offset from the axis of the peg 14 so that the edges of the blade lie at a slight angle thereto. For honing, blade honing plates 21, Fig. 6, with ribs 25 may be spring mounted, at 26, in the shuttle so that when the strop is removed and the shuttle oscillated by hand, the ribs are slidingly moved relatively to blade 13 owing to the resilient mounting of the honing plates.
Patent GB-899283-A (GB)
Title: Improvements in fluid control valves
Inventor: VARGA OTTO HERMAN
IPC: F16K1/46
Filed: 1957-10-30
Abstract: 899,283. Valves. SEETRU Ltd. Oct. 30 1958 [Oct. 30, 1957], No. 33802/57. Class 135. A lift valve has a closure member having a conical closure surface 23 cooperating with a complementary conical seat 6 the surface 23 being formed on a shoulder which provides an abutment against which is located a sealing ring 19 of rubber or rubber-like material or a synthetic plastic material and of P section comprising a body portion 35 and an integral skirt or lip portion 36 the body portion 35 of the ring bearing on the seat when the conical closure surface makes contact therewith to close the valve. The ring is on that side of the conical closure surface facing the inlet 2 of the valve and holes 21 from the base of a groove or recess formed partly by the shoulder, and which are covered by the lip 20, communicate with a space 22 on the downstream side of the closure member, so that the fluid pressure tends to maintain the ring in place between the open and closed positions. The upstream ends of the holes 21 may be connected together by a shallow channel in the base of the groove or recess. In a modification, wherein the ring is of material not highly elastic, this ring is assembled, without stretching, against a shoulder of the closure member and provided with a keeper plate. In other modifications, corresponding to the inlet 2 being made the outlet of the valve, the positions of the conical closure surface and the sealing ring are reversed, and in a further modification the groove or recess has its base parallel to the axis of the valve. Specification 826,936 is referred to.
Patent GB-191933-A (GB)
Title: A device for securing the safety of timbermen and other workmen employed underground in mines
IPC: E21D19/00
Filed: 1921-12-16
Abstract: 191,933. Douglas, D. Dec. 16, 1921. Shields for miners.-In a shield for miners' use comprising a curved plate supported on telescopic legs, slidable plates are provided beneath the curved plate to extend the protective surface.
Patent GB-1113922-A (GB)
Title: Clarifying phosphoric acid
Inventor: GLIKIN PETER GEORGE
IPC: C01B25/22
Filed: 1964-08-19
Abstract: Wet process phosphoric acid derived from the reaction of rock phosphate and sulphuric acid is clarified by adding to the resultant slurry of phosphoric acid and suspended calcium sulphate and other solid particles a 1-2% aqueous solution of a flocculating agent comprising polyacrylamide or hydrolysed polyacrylonitrile or salt thereof, and subjecting the treated slurry first to a filtration step, then to an evaporation step, and then finally to a centrifugation step.  The flocculating agent is used in an amount 0.002 to 2 pounds per ton of phosphoric acid/calcium sulphate slurry.
Patent GB-845677-A (GB)
Title: Improvements in or relating to voltage regulator devices
IPC: H02J7/24
Filed: 1957-10-30
Abstract: 845,677. Automatic voltage control systems. GENERAL MOTORS CORPORATION. Oct. 30, 1957 [Nov. 13, 1956], No. 33872/57. Class 38 (4). The output voltage of a D.C. generator, or it is stated, an A.C. generator or a saturable reactor stabilizer is maintained constant by using a transistor to switch the D.C. field (or control) current " on " or " off " in response to changes in output voltage. The transistor TR2 is in series with the field 20 of a selfexcited D.C. generator 22, and is controlled by a common-emitter driver transistor TR1. The base/emitter circuit of TR1 includes a Zener diode 28 and a portion of a potential divider R1, R2, R3 which is connected across the output of the generator 22. When the output voltage of the generator is low, diode 28 has a high resistance, transistor TR1 does not conduct, and transistor TR2 is fully conductive due to base current through resistor R5. When the output voltage rises, diode 28 passes Zener current, transistor TR1 conducts, thereby reducing the base current of transistor TR2 which becomes substantially non-conducting. The transition is assisted by positive feedback from the emitter of TR2 through resistor R4 to the base of TR1 and by transient feedback through capacitor 46. The emitter of TR2 is biased by a potential divider R6, R7 so that when the base current is reduced the emitter voltage is equal to the collector voltage in order to ensure complete cut-off. The diode 48 shunts the field 20 to reduce switching surges. Specifications 787,610 and 814,051 are referred to.
Patent GB-618982-A (GB)
Title: A sink stand
IPC: A47J47/20
Filed: 1946-11-15
Abstract: 618,982. Stands. REITH, M. R. C. Nov. 15, 1946, No. 33915. Drawings to Specification. [Class 52 (iii)] A sink stand for holding articles being cleaned comprises a rectangular frame, apertured to receive the article, supported on rubber feet.
Patent GB-1397610-A (GB)
Title: Contactless relay
IPC: H03K17/90
Filed: 1972-07-20
Abstract: 1397610 Transformers GEHAP GES FUR HANDEL UND PATENTVERWERTUNG mbH & CO KG 20 July 1972 [23 July 1971 25 March 1972] 33923/72 Heading HIT [Also in Division H3] A transformer has a magneto-sensitive resistor FP located between core members J within the windings. The resistor is connected in parallel with the secondary winding and provides a coupling between input and output terminals of the transformer for D.C. and low frequency A.C. signals.
Patent GB-1188706-A (GB)
Title: Improvements in or relating to Monoazo Dyestuffs
IPC: C09B43/18
Filed: 1967-07-25
Abstract: 1,188,706. Monoazo dyes. AMERICAN ANILINE PRODUCTS Inc. 25 July, 1967 [26 July, 1966; 13 June, 1967], No. 34091/67. Heading C4P. The invention comprises the monoazo dyes which are the reaction products of (i) a diazotized arylamine capable of coupling in an acid medium and (ii) a coupling component of formula wherein R 1  is H or OR 2 , R 2  is a C 1-4  alkyl radical and n is 1 or 2, one mole of said coupling component being treated (i.e. some reaction, not necessarily complete, occurs) before or after coupling with at least one mole of each of (1) a halogen-containing compound Q-50-Q or containing the group -CO-Q or -SO 2 -Q wherein Q is a halogen atom and (2) an N- substituted mono- or di-C 1-4  alkyl-formamide or -acetamide. The dyes obtained are compositions which show three major spots when evaluated by thin layer chromatography and give orange, red and blue shades on polyester fibres. In Examples: (1) 3-diethanolamino-4- ethoxy-acetanilide is treated in the presence of pyridine with ethyl chlorocarbonate and dimethylformamide and the unseparated product coupled with the diazonium compound of 1 -amino-2,4-dinitro-6-bromobenzene; (6) 3- diethanolamino - 4 - ethoxy - 6 - (2<SP>1</SP>,4<SP>1</SP> - dinitro - 6<SP>1</SP>-bromo) phenylazoacetanilide is treated as the coupler is treated in (1). Several variants of these processes are described.
Patent GB-213951-A (GB)
Title: Method and apparatus for indicating the level of liquid in a tank
IPC: G01F23/16
Filed: 1922-12-14
Abstract: 213,951. Guichard, L. Dec. 14, 1922. Addition to 181,362. Indicating by measuring volume of air above liquid in a closed vessel. - The cylindrical auxiliary receptacle described in the parent Specification is replaced by a container so shaped that increment of volume due to a given increment in depth is variable so that the scale of readings of the pressure gauge can be uniform in cases where the main-liquid container is not of uniform size throughout. In typical cases the auxiliary cont'ainer may have the contour shown in Figs. 2 - - 6. In a second modification, an indication of the amount of liquid in the main tank is obtained by producing a fall in the pressure of the volume of air confined above the liquid in the tank. This end is achieved by fitting a suction pump and modifying the character of t'he admission valve. Another method of obtaining readings consists in giving such a travel to the piston of the pump as to produce a predetermined constant reading of the pressure gauge. The piston rod is graduated and the quantity of liquid in the tank given by the reading of this graduation when the constant pressure has been attained. A further improvement consists in the valve in the pipe establishing communication between the pump and the container and comprises a piston 18, Fig. 9, carrying a needle valve 20 adapted to close an outlet 21. The pressure or suction pump and the gauge may be replaced by a single apparatus comprising a casing 29 enclosing bellows 24 terminating in a circular diaphragm 22. The bellows communicates with the tank containing the liquid by way of the tube 18, a lever 31 for operating the bellows is connected to a rod 32 terminating in a handle 33. To the lever is joined a rod 34 carrying a valve 35 which closes an outlet 36 in the rigid end of the bellows. In operation, the pressure produced operates a pointer moving across a dial 27 through suitable levers. Where the device is applied to aircraft the stroke of the piston may be varied in accordance with altitude.
Patent GB-1436888-A (GB)
Title: Adhesive compositions
IPC: C08F2/00
Filed: 1973-07-18
Abstract: 1436888 Adhesive compositions E I DU PONT DE NEMOURS & CO 18 July 1973 [20 July 1972 4 May 1973] 34246/73 Heading C3P An adhesive composition comprises a solution having a Brookfield viscosity of up to 1 million, of a sulphur-bearing material selected from chlorosulphonated polyethylene and a mixture of a sulphonyl chloride with chlorinated polyethylene, dissolved in at least one polymerizable vinyl monomer and at least one polymerization catalyst which comprises an accelerator and/or combination of an initiator and a promoter, the sulphur-bearing material containing 25-70 wt. per cent of chlorine and 3-160 mmoles sulphonyl chloride radical per 100 g. of chlorosulphonated polyethylene or chlorinated polyethylene and having been made from polyethylene having a melt index of 4-500 dg./min. The term "vinyl monomer" includes monomers which, while not containing  the vinyl group, are so designated in the art. The initiator is a tertiary amine. The promoter is, e.g. an organic salt of a transition metal and is not an initiator or accelerator. The accelerator is an aldehyde amine condensation product. The term "polyethylene" includes copolymers of ethylene with up to 5 weight per cent of other olefin. The polymerization catalyst may also include a free radical generator, e.g. an organic peroxide, an organic hydroperoxide, a perester or a peracid. In a modification the catalyst comprises one or more of an accelerator, an initiator, a promoter or a free radical generator, with the proviso that the monomer is an acrylic monomer, viz. acrylic acid, methacrylic acid, or a derivative of either of these. A polymer in monomer solution comprising a sulphur-bearing material containing 0À1-5 wt. per cent sulphur dissolved in an acrylic monomer is also claimed. In the examples the adhesive compositions comprise methyl methacrylate (containing hydroquinone), methacrylic acid (containing 4-methoxyphenol), ethylene glycol dimethacrylate, chlorosulphonated polyethylene, cumene hydroperoxide, N,N-dimethylaniline, a mixture of butyraldehyde and aniline condensation products, cobalt naphthenate, ethyl methacrylate, nbutyl methacylate, 2-ethylhexyl methacrylate, chlorinated low-density polyethylene, sulphonyl chloride, chlorinated high density polyethylene, p-toluene sulphonyl chloride and diphenyl ether-4,4-disulphonyl chloride.
Patent GB-1069813-A (GB)
Title: Improved braiding machines
IPC: D04C3/00
Filed: 1964-08-21
Abstract: A braiding machine has the bobbins, which are driven by notched discs (3) guided in raceways (10) formed of a number of identical detachable and interchangeable sections (5), Figs. 1, 2 and 3, not shown.  The sections are secured to the top (9) of a gear casing (4) housing the gears (16) driving the notched discs (3).  Each section (5) is formed with a recess which between two sections accommodates the plate (12) in which is formed the change-over points (13) of the raceways.  Each section also has a central apertured projection (5b) through which projects the spindle (15) of the corresponding notched disc which supports the gear wheel (16) driving the disc.  Tubes (19) projecting from the gear wheels dip into an oil bath (20) and cause the oil to pass up them into oilways (21, 22, 23) to lubricate the parts of the machine.
Patent GB-1209213-A (GB)
Title: Method of reinforcing molded plastics articles
IPC: B29C65/56
Filed: 1968-07-19
Abstract: 1,209,213. Joints. REHRIG PACIFIC CO. 19 July, 1968 [19 July, 1967], No. 34459/68. Heading B3U. A rigid metallic element 30 is attached to a thermoplastics body 10 by applying a pressure to the latter to cause a cold plastic flow of the thermoplastics materaial into a recess or aperture 34 of the metallic element 30, the pressure being applied in an area substantially equal in size and configuration to the recess or aperture 34. A rectangular steel reinforcing bar 30 is attached within a channel of a stacking ring portion 16 of a thermoplastics crate 10 by pressing a punch tool 42 into the flange 22 of the channel at a position in alignment with one of the apertures 34 in the bar 30 to force plastics material into the aperture 34. The flange 24 of the channel is supported by an anvil 40.
Patent GB-398686-A (GB)
Title: Improvements in the manufacture of powder-puffs
IPC: B29C33/02
Filed: 1932-12-07
Abstract: 398,686. Shaping or forming powderpuffs. PARISOT, P., 86, Faubourg St.- Denis, Paris. Dec. 7, 1932, No. 34686. Convention date, Sept. 22. [Class 100 (ii).] A powder-puff consists of a foundation element A, Fig. 6, of which the rim 23 is curled inwardly'over the edges of circular pieces, one, 25, of powder-receiving material and the other of an adhesive nature, the inwardly curled rim being flattened. The foundation element A, Fig. 3, is formed from a circular piece of fabric, leather, &c. and a covering piece of material such as suede, by a hot press comprising a female die having an annular groove with which co-operates an annular rim on a coacting male part. The foundation element A, together with a layer 24 of gutta percha or other material which becomes adhesive when heated and a layer 25 of velvet, down, or other soft material adapted to form the powderreceiving surface of the puff, are then placed in a die' 10 the central part 18 of which is provided with a recess 19 and is surrounded by a spring-loaded ring 12. A male part 20, connected to the movable part of a hot press and provided with an annular groove 21, coacts with the die 10 to curl the rim 23 of the part A inwardly and to press the layers 25, 24 against the bottom of the part A as shown in Fig. 4. The curled rim 23 is then flattened, as shown in Fig. 6, by a third press comprising a fixed female die provided with an annular groove with which co-operates an annular rim on a coacting male part, the lower surface of the rim being provided with a groove the inner edge of which projects downward beyond the outer edge.
Patent GB-1097304-A (GB)
Title: Improvements in or relating to electron discharge devices incorporating electron multipliers
Inventor: BENNETT ANTHONY WILFRED
IPC: H01J31/48
Filed: 1963-09-04
Abstract: 1,097,304. Electron multipliers; image pickup tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 4, 1964 [Sept. 4, 1963], No. 34871/63. Heading H1D. In a discharge device in which electrons from an extended-area source 1 are directed on to a secondary-electron emissive surface 10, this surface is arranged opposite a counter electrode 10a, and an apertured persuader electrode 13 is arranged in front of the entrance aperture formed between surface 10 and electrode 10a, so that by application of suitable potentials, electrons strike the secondaryemissive surface at a position away from the front edge and where the extraction of secondary electrons by the following electrode 9 is substantially uniform. As shown, in Fig. 2, the electron source is the light-scanned, chargestorage target of a pick-up tube, and electrodes 10, 10a are connected together by a mesh 12 covering the entrance aperture but to assist in electron focusing, elements 10, 10a, 12 may be insulated from one another. In Fig. 3, electrons from photocathode 14 are directed by persuader electrode 20 and counter electrode 18 on to a first dynode 17 which may be frusto-conical or formed by two separate plates, the persuader electrode 20 being formed with an annular slit 21 or two parallel slits.
Patent GB-393978-A (GB)
Title: Improvements in or relating to mirror wheels suitable for use in television tele-cinematographic and like systems
IPC: H04N3/08
Filed: 1931-12-16
Abstract: 393,978. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Mar-. coni House, Strand, London, and KEMP, R. J., Gurnigoe, Goldlay Avenue, Chelmsford, Essex. Dec. 16, 1931, No. 34893. [Class 40 (iii).] In a mirror wheel, suitable for television and the like, each mirror M is mounted on a carrier CP, having a ball seating B adapted to fit into, and be clamped to, a cupped carrier C, fixed to or forming part of the wheel. Preferably the ball B carries a threaded stud S passing through an elongated slot SL in the cup C and cooperating with a concave distance piece P, a spring SP, and a nut N2 to allow of clamping. According to the Provisional Specification, the spring Sp and the spacer P are omitted and the nut N2 has a concave face.
Patent GB-500456-A (GB)
Title: Improvements in cathode ray tubes having fluorescent screens
IPC: H01J29/18
Filed: 1937-12-17
Abstract: 500,456. Cathode - ray tubes thermionic valves; wireless receiving circuits. GENERAL ELECTRIC CO., Ltd., BENJAMIN, M., and BALLANTINE, R. J. Dec. 17, 1937, Nos. 34997/37 and 419/38. [Classes 39 (i) and 40 (v)] In a tuning indicator for radio receiving apparatus having a luminescent screen 1 whose illumination is varied by a control electrode 5 connected to the anode 4 of a valve in the set, the bias applied to the screen is alternating preferably of 50 cycles per second ; a resistance connection 6 is provided between the screen and anode 6. The valve is a pentode with screen and suppressor grids 8, 9 so that over some considerable range of anode voltage, the anode current varies substantially linearly with that voltage. The luminescent material may be willemite with an admixture or backing of carbon as described in Specification 600,314. Specification 466,604 also is referred to: