baber/WOPTO huggingface dataset:
Patent GB-787649-A (GB)
Title: Improvements in or relating to interference limiters
Inventor: FISHER DONALD HENRY
IPC: H04N5/57
Filed: 1954-12-16
Abstract: 787,649. Automatic gain control. PYE, Ltd. Dec. 16, 1955 [Dec. 16, 1954], No. 36468/54. Class 40 (5). In a television receiver in which interference is limited by employing a discharge tube as a video amplifier so that the interference would occur beyond the knee of the anode voltage/grid voltage curve, the contrast is altered by varying the D.C. potential of an electrode and the output is fed to an A.G.C. circuit which compensates for the change in clipping level caused by variations of the contrast control. In a positive modulation system the input to video amplifier V1 is such that the interference pulses are lost below the lower knee of the anode voltage/grid voltage curve (Fig. 2, not shown), and the output is fed through cathode follower V2 to gating tube V3 to which pulses are applied to the grid to generate an A.G.C. voltage at the anode. Contrast is varied by adjusting the tapping on potentiometer P1 to vary the anode voltage of video amplifier V1. With the grid of discharge tube V3 returned to a fixed potential on potentiometer P2 variations in contrast would result in the black level remaining constant with variations in the peak white level. In order to overcome this, the grid potential of tube V3 is varied with the contrast control by making a connection over a resistor to the tap on potentiometer P1. In a similar manner the grid of cathode-ray tube T is also varied in potential by a connection over a resistor to this tap. In a modification, Fig. 3, suitable for use with negative modulation, the setting of resistor P4 determines the contrast. The output from the video amplifier V5 is fed through cathode follower V6 to an A.G.C. system comprising a sampling diode V7, an amplifier V8 and a smoothing rectifier D3.
Patent GB-1084434-A (GB)
Title: Improvements in and relating to regulating the timing and rate of injection of reciprocating fuel injection pumps for diesel engines
IPC: F02M59/26
Filed: 1964-09-07
Abstract: 1,084,434. Fuel injection pumps. KUBOTA TEKKO KABUSHIKI KAISHA and NIHON DENSO KABUSHIKI KAISHA. Sept. 7, 1964 [Dec. 28, 1963], No. 36508/64. Heading F1A. In a cam actuated reciprocating plunger fuel injection pump the plunger is rotatable to vary the quantity of fuel injected and is provided with grooves 1 and 2 which determine the end and start of injection, respectively. The groove 2 is inclined towards the groove 1 to provide a retarded injection when the quantity injected is small and the cam profile is such that the velocity of the plunger is less when the quantity injected is small than when it is large.
Patent GB-780761-A (GB)
Title: Improvements relating to dust extractors for rotary abrasive tools
Inventor: DOWNING ROBERT ERNEST
IPC: B24B55/10
Filed: 1954-12-20
Abstract: 780,761. Confining dust generated by grinding wheels. HOLMAN BROS., Ltd. Dec. 20, 1955 [Dec. 20, 1954], No. 36747/54. Class 8(2). A surface grinding wheel 1 has a duct 11 connected to a suction coupling 12 and sturounding at least the greater part of the peripheral edge of the wheel and has a plurality of mouths 14, 14<SP>1</SP>, 14<SP>11</SP> open to said edge. Uniform suction is attained by grading the mouth areas according to the length of ducting 11 connecting them to the coupling 12. As shown, the duct, which is integral with a guard 3, is of rectangular section and the mouths are provided in the corner bounded by the side facing the wheel periphery and that parallel to the working face of the wheel 1. Dust in the vicinity of an uncovered portion 16 of the wheel periphery is drawn through a mouth 20 in an end face 19 of the duct 11. In a modification the duct 11 is located outside the guard 3 and in a further modification the external duct is triangular in cross-section and has the mouths formed along an edge.
Patent GB-842308-A (GB)
Title: Improvements in or relating to membrane pumps
IPC: F04B43/02
Filed: 1958-11-14
Abstract: 842,308. Diaphragm pumps. GUINARD, P. A. Nov. 14, 1958 [Nov. 18, 1957], No. 36758/58. Class 102(1). Diaphragms 9, 10 are secured to the heads of a piston 3 reciprocated in a cylinder 2 filled with oil, by a cam 18 passing through the piston and surrounded by a strap 19 pivoted to the piston at 20. A double cylinder head 5, 6 on one end forms together with a further diaphragm 7 an air chamber 8 and an outlet chamber 32. The pump chambers are provided with valves comprising seats 27 to which cages 29 supporting the valve springs 28 are secured. The Specification states that the piston heads may be provided with valve controlled ports in the zones 31 which are filled with oil which supports the flexed diaphragm.
Patent GB-1075394-A (GB)
Title: Method and device for producing printing proffs
IPC: B41F7/18
Filed: 1964-09-09
Abstract: 1,075,394. Printing apparatus. R. J. MAZURIER. Sept. 9, 1964 [Aug. 6, 1964], No. 36865/64. Heading B6C. In order to obtain optimum results in an offset printing press using any particular copy paper a sheet of the paper is first passed through an offset proof printing machine in which it receives a multiplicity of images each imprinted from an offset surface made of rubber of a density different from the others. By producing a number of such proof printed sheets and using a different ink for each it is possible to set up the offset press with an offset surface and ink to give satisfactory printing on the paper to be used. In the apparatus shown an ink reservoir 3 is reciprocated by endless screws 17 along a rubber roller 2 thereby evenly depositing ink thereon. The ink passes to a plate cylinder 7 via a heated copper roller 4 and a rubber roller 6. The plate cylinder carries eight bandlike etched printing surfaces each of which contacts a similar rubber bandlike surface on an offset cylinder 6, each of these offset surfaces being of rubber of a density different from the others. Each copy sheet to be proof printed is passed between the cylinder 6 and a pressure cylinder 10 the latter also comprising eight distinct cylindrical surfaces.
Patent GB-1163303-A (GB)
Title: Improvements in or relating to Gas Passes Lined with Wall Tubes
Inventor: BAGLEY ROY
IPC: F22B37/14
Filed: 1965-08-27
Abstract: 1,163,303. Once-through vapour generators; tube walls. BABCOCK & WILCOX Ltd. 26 Aug., 1966 [27 Aug., 1965], No. 37044/65. Headings F4A and F4B. In a once-through forced-flow vapour generator of the type disclosed in Specification 1,163,301, the bottom hopper of the vapour generator is formed from two triangular end walls, with two symmetrically convergent side walls 4a, 5a between them. The parallel inclined tubes lining the hopper are formed as four panels connected end to end, one panel 23 extending from coner C1, around corner C2 to line L1, the next panel 24 extending from line L1 to corner C3, whilst panel 25 extends from corner C3 to line L2, and panel 26 from line L2 to corner C1. The separation between adjacent tubes is different in panels 24 and 26 from that in panels 23 and 25, whilst the tubes of the latter panels are more steeply inclined, so that the horizontal separation between tubes at the upper outlet edges of the panels are the same, to facilitate their connection to the uniformly spaced wall tubes of the vapour generator, though the spacing between the tube inlets at the bottom inlets of the different panels is not uniform.
Patent GB-1083539-A (GB)
Title: An improved teat cup
IPC: A01J5/08
Filed: 1966-08-18
Abstract: 1,083,539. Teat cups. G. H. SMITH. Aug. 18, 1966 [Aug. 23, 1965], No. 37076/66. Heading A1M. A teat cup comprises a rigid shell 1 within which is located an inflation 14 having sealing means 2 adapted to engage the upper end of shell 1, and lower sealing means 3 engaging the lower end of the shell and having a pulsation tube 8 attached thereto, means 10 being provided at the junction of milk tube 15 and inflation 14 to grip the edges of aperture 9 in the lower sealing means the upper and lower sealing means 2, 3 being held in sealing engagement with the shell by the tension in inflation 14. The parts 2, 14, 15 are preferably moulded in one piece from rubber and parts 3 and 8 are likewise moulded in one piece. Upper sealing means 2 is provided with lips 12 equidistant round the mouth of the teat cup and adapted to grip an animal's teat. The shell 1 may be clear plastics tubing.
Patent GB-358800-A (GB)
Title: Improvements in or relating to anti-vibration devices for overhead electric transmission lines or other overhead cables
IPC: H02G7/14
Filed: 1930-12-09
Abstract: 358,800. Cables. ELECTRICAL IMPROVEMENTS, Ltd., Carliol House, Newcastle-on-Tyne, and RYLE, P. J., Byway, Lilburn Gardens, South Gosforth, Northumberland. Dec. 9, 1930, No. 37117. [Class 36.] An antivibration device for overhead cables comprises a spring rod A clipped to a suspension clamp C and drawn up from its normal bowed position to lie parallel with the cable E by chrome leather lacings F as shown.
Patent GB-1255679-A (GB)
Title: Process for the continuous hydrolysis of diorganodichlorosilanes
Inventor: PUTHET ROBERT RAPHAEL
IPC: C08G77/06
Filed: 1969-07-23
Abstract: 1,255,679. Hydrolysis of diorganohalosilanes. RHONE-POULENC S.A. 23 July, 1969 [24 July, 1968], No. 37169/69. Heading B1X. [Also in Division C3] Apparatus as shown schematically in the Figure is used for the continuous preparation of diorganosiloxane polymers of low viscosity by hydrolysis of diorganohalosilanes. Steam and the halosilane enter at nozzles 1 and 2 respectively; an emulsion forms and rises spontaneously up the reaction zone 3 into the inverted truncated conical chamber 4; part of the product circulates via pipeline 6, through rotameter 8 and regulator valve 9 to the base of zone 3, where it provides the reaction media for the hydrolysis; the remaining product is removed via tube 7 and shut-off valve 11; HC1 is led away via cyclone separator 5.
Patent GB-1318108-A (GB)
Title: Apparatus for the formation of accumulator of battery plates
IPC: H01M4/23
Filed: 1970-08-03
Abstract: 1318108 Conveyers VARTA AG 3 Aug 1970 [7 Aug 1969] 37402/70 Heading B8A [Also in Division H1] Apparatus for the formation of accumulator plates comprises a roller conveyer 3 on which formation troughs 2, supported on pallets 1, are moved through a preparation room 100. A formation room 101 is provided with rails 4 on which the pallets 1 stand during the formation period. Fork lift trucks 5 transfer the pallets between the rooms 100, 101. Conveyer 3 comprises acid-resistant steel rollers 31, 32 and includes a pallet-moving chain which has driving members 43, 44 engageable with rubber members 45 for protecting the chain and its guide channels 33 from acid. The conveyer chain is driven by members 8 of a hydrostatically driven chain 9. Trucks 5 have a sub-frame 23 which runs on rails 6 parallel to the conveyer 3 and which is driven by a mechanism 10 supplied by cables 11. An hydraulic unit 24 for driving the truck along rails 22 which form extensions of rails 4 when the trucks are in the positions shown in Fig. 1, includes cooling means 25. An electric control cable 27 is wound on a drum 26. Movement of the frame 23 is controlled by contacts (not shown) along the rails 6 and a switch 29 on the truck is actuated by engagement with the troughs 2. Pallets 1 are of synthetic resin or of wood covered with synthetic resin and the troughs are preferably of hard rubber. The troughs may have plug and socket connections for current supply to the accumulator plates. Acid is pumped out from the formation troughs in the room 100 and transferred to the troughs containing unformed plates after the acid has been checked. In operation, a truck 5 travels along the rails 6 for alignment with a pair of the rails 4, the truck then moving along the rails 22, 4 to pick up a pallet with unformed plates from the converyer 3. The truck, after depositing the pallet in the formation room 101, returns to its starting position. Simultaneously with the transfer of the pallet into the room 101, a pallet with troughs containing formed plates is removed from the room 101 by a truck on other rails 4. The speed of the trucks is controlled to avoid splashing of the acid. The operations are programme-controlled and are checked from a desk 13.
Patent GB-930548-A (GB)
Title: Pilot controlled fluid shut-off valve
Inventor: KOWALSKI SLAWOMIR
IPC: F16K31/363
Filed: 1959-11-04
Abstract: 930,548. Valves. MAROTTA VALVE CORPORATION. Nov. 4, 1959, No. 37473/59 Class 135. During the closing movement of a pilot-controlled main closure 20, Fig. 1, interposed between an inlet 15 and an outlet 16, the controlled fluid also flows through passages 56, 58 and 60, past a check valve 62 and a pilot valve 44, through a restriction 68 in a closed check valve 66, and a passage 70 into a chamber 28 behind the closure 20 to assist a spring 32 to seat the closure 20. To open the latter a solenoid 52 is energized to move the pilot valve 44 to the right whereupon fluid flows from chamber 28 through passage 70, check valve 66, the pilot valve 44, and a further check valve into the outlet 16 via passages 82 and 79 to act upon the closure 20 and urge it to the left. Two more check valves are provided to enable the direction of flow through the main valve to be reversed without the necessity for reversing the operation of the pilot-valve solenoid. The main and pilot valve casings, which are of aluminium or an aluminium alloy, are interconnected whilst the main closure 20, Fig. 6, has a head 110 of plastic material which is tapered to match the seat 22. The closure 20 is provided with guide vanes 118. The solenoid 52 incorporates an armature 154 connected by an adjustable plunger 161 to the pilot valve 44, which is balanced and of the shuttle-type loaded to the position shown by an adjustable spring 50; the pilot valve 44 is contained in a two-part sleeve.
Patent GB-1072128-A (GB)
Title: C-aryl-c-aminoalkyl-heterocyclic compounds
Inventor: JUCKER ERNST
IPC: C07D317/00
Filed: 1964-09-14
Abstract: New compounds of formula <FORM:1072128/C2/1> wherein each of R1, R2 and R3 is hydrogen, halogen or alkoxy or alkyl of 1-4 C, n is 1 or 2, and A is alkylene of 2-4 C, and their acid addition salts, are prepared by alkaline hydrolysis of corresponding phthalimides, themselves obtainable by reaction with alkali metal phthalimide of o -halo-compounds which may be obtained from compounds R1R2R3-Ph-CO.A.Hal with the appropriate diol and a condensation agent.
Patent GB-839145-A (GB)
Title: "improvements in electrodes for storage batteries"
IPC: H01M4/76
Filed: 1957-12-02
Abstract: 839,145. Batteries. TUDOR A.B. Dec. 2, 1957 [Dec. 10, 1956], No. 37534/57. Class 53. An electrode consisting of a number of tubes is provided with a bottom bar of insulating material which encloses the lower ends of the tubes and the lower parts of the active material therein. Fig. 3 shows an end-on view of a number of tubes having a bottom bar 7 of polyvinyl chloride, for example, which is covered by a strip 8 which is welded to the tubes 3. The strip 8 may be made of the same material as the tubes 3, and the bar 7 may be of the same width as the tubes. Fig. 9 shows a modification in which the bar 9 is shaped to fit the tubes to which it is welded or cemented. The rods 1 may or need not extend to the bar 9. The insides of the tubes may be covered with woven glass wool. Specification 697,198 is referred to.
Patent GB-1181735-A (GB)
Title: Selective Printers
IPC: B41J1/20
Filed: 1967-08-16
Abstract: 1,181,735. Selective printing. MOHAWK DATA SCIENCES CORP. 16 Aug., 1967 [19 Sept., 1966], No. 37640/67. Heading B6F. Type in endless frames.-Separate typecarriers 8 with one or more characters 10 on each are movable around a closed-loop race in which they are retained by a spring 30, the loop being in a plane parallel with a web 2. The type-carriers 8 are channel shaped with a central recess 14 for the spring 30 and one side surface 16 is slightly angled and carries raised characters. The other channel is formed with teeth 20 so that a gear 31 can drive the typecarriers around the loop. The type carriers are guided between the gear 31 and an idler 22 by straight sections of track 26, 28 shaped to loosely conform to the shape of the typecarriers 8. Arrangement of hammers.-There may be a hammer in each character position, a hammer to span two character spaces, or a reduced number of hammers coupled with lateral paper shifting. Type-surfaces.-The characters are arranged on the side of the channel shaped type-carriers, at a spacing that may be equal, less or more than the spacing of the character positions. The reduced or increased spacing produces the "Doppler effect" so that sequential comparison within a single comparator is possible.
Patent GB-619744-A (GB)
Title: An improved draw gear for tractor vehicles
IPC: B60D1/167
Filed: 1946-12-23
Abstract: 619,744. Motor-vehicle steering-gear. PEST CONTROL, Ltd., and MARSHALL, E. J. Dec. 23, 1946, No. 37787. [Class 79 (v)] [Also in Group XXXII] A tractor vehicle draw-gear having a controlled swinging draw-link intended to guide a trailer in the path of the tractor comprises a bracket having side panels 1 braced by a crosstube 3 and extended into brackets 10 for attachment to the tractor rear axle casing, a bottom panel 16 and a top panel (not shown) supporting a vertical pin 11 to which is pivoted a draw link 13 provided with ears 20 each pivoted to a hydraulic jack 17 controlled through pipe-lines 21 and a driver's control valve (not shown). According to the Provisional Specification, the draw link 13 may be pivoted at its forward end to a cross-member of the tractor chassis. Specification 435,178 is referred to.
Patent GB-1125721-A (GB)
Title: Homogeniser
Inventor: JOUX JEAN LOUIS
IPC: F16K1/38
Filed: 1965-09-03
Abstract: 1,125,721. Homogeniser. SOC. SIRIUS. 3 Sept., 1965 [4 Sept., 1964], No. 37787/65. Heading B1V. In the homogeniser shown in Fig. 1, fluid under pressure entering at 44 flows through the gap between the surface of valve member 52 and the frusto-conical bearing surface of valve seat 46 and out by 56. Valve member 52 is guided by portions 54 of seat member 46, and may be urged towards seat member 46 by spring 84 the loading on which may be manually adjusted. A flexible diaphragm 60 may be used to seal the lower casing 12 from the spring assembly casing. In the embodiment of Fig. 2 (not shown) frusto conical or alternatively spherical wall 94 of valve member 52a engages the toroidal surface 46a of the valve seat member. In the embodiment of Fig. 3 (not shown) valve member 52b and valve seat member 46b are formed with stepped frusto conical surfaces.
Patent GB-1247400-A (GB)
Title: Method and apparatus for molding thermoplastic materials
IPC: B29C45/56
Filed: 1969-07-28
Abstract: 1,247,400. Punching an injection moulded article. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 28 July, 1969 [31 July, 1968; 30 Aug., 1968; 13 Nov., 1968; 17 June, 1969], No. 37858/69. Heading B5A. To avoid weld lines in the article, a hole is punched in an injection moulded article after shaping and before opening the mould. The punch 3 passes through the movable part 14 of the injection mould and a corresponding ejector punch 7 moves in the wall of the fixed mould part 10 which is backed by a movable slide 1 having a recessed portion 1<SP>1</SP>. The punch and the slide are moved by hydraulic cylinders under the control of time relays actuated to the programme of Fig. 9. In operation, material is injected into the mould, a hole is formed by the punch 3 with the ejector punch 7 permitted to recede by the position of the slide 1, the mould opens, and the slide then returns causing the punch 7 to eject the severed material.
Patent GB-803373-A (GB)
Title: Dehydrogenation catalyst and a process for its production
IPC: C07C45/00
Filed: 1956-12-13
Abstract: A catalyst, particularly suitable for the dehydrogenation of an alcohol to a carbonyl compound comprises: copper, nickel, and an alkaline-reacting alkali metal compound on a siliceous support; the alkali metal compound or compounds being present to the extent of from 1 to 30 per cent of the combined copper and nickel.  The preferred support is kieselguhr and the preferred alkali metal compound is a potassium compound.  Advantageously the support comprises 20 to 400 per cent of the combined weight of copper and nickel and the alkali metal compound advantageously comprises 3 to 20 per cent of the combined weight of copper and nickel.  The copper and nickel are in the proportions of 2-1 to 1-2.  The catalyst is prepared by precipitating the aqueous solution of a compound of copper and a compound of nickel by an alkaline-reacting alkali metal compound on to kieselguhr; washing the precipitate; impregnating with an alkali metal compound; drying and treating with hydrogen or hydrogen-containing gas.  The catalyst may be activated by treatment, before reduction by hydrogen with an inert and/or an oxidizing gas for at least sixty minutes at 250 DEG  to 600 DEG  C.  The catalyst may be regenerated by treatment with oxygen or oxygen - containing gas at temperatures below 300 DEG  C.ALSO:Carbonyl compounds are prepared by the dehydrogenation of alcohols wherein is used as catalyst a composition comprising copper, nickel and one or more alkaline-reacting alkali metal compounds on a siliceous support, the alkali metal compound or compounds being present to the extent of from 1 to 30 per cent of the combined weight of copper and nickel. The preferred support is kieselguhr and the preferred alkali metal compound is a potassium compound.  Advantageously the support comprises 20 to 400 per cent of the combined weight of copper and nickel and the alkali metal compound advantageously comprises 3 to 20 per cent of the combined weight of copper and nickel.  The copper and nickel may be present in the proportions of 2-1 to 1-2.  The preparation of the catalysts is described (see Group III). Alcohols, particularly secondary saturated aliphatic alcohols, may be converted into carbonyl compounds at a temperature in the range of 200 DEG  to 300 DEG  C., using a space velocity of 3 to 6 litres (liquid) of alcohol per litre of catalyst per hour.  Spent catalyst may be regenerated by treatment with oxygen at temperatures below 300 DEG C. followed by reduction.  Examples describe the conversion of isopropyl alcohol to acetone and sec.-butanol to methyl ethyl ketone by passing the alcohol or mixture thereof with hydrogen in the vapour phase over a catalyst obtained by adding a solution of copper and nickel nitrates to a solution of sodium carbonate containing kieselguhr, filtering, impregnating the solid residue with potassium carbonate and finally reducing with hydrogen at 300 DEG  C.  The potassium carbonate used may be replaced by an alkali metal hydroxide, silicate, phosphate, nitrate or borate.
Patent GB-327171-A (GB)
Title: Improvements in or relating to catches or fasteners suitable for mosquito enclosures
IPC: E05C1/16
Filed: 1928-12-24
Abstract: 327,171. Tonks, W. H., and Sparks, W. Dec. 24, 1928. Latches, sliding.- A latch bolt b is locked by a sheetmetal member j pivoted to the casing a at h and provided with an integral head i projecting through an arcuate slot k in the casing. The nose c is secured to stampings e guided by a lug o end, the plate being separate handles p, q, as described in Specification 311,443.
Patent GB-898647-A (GB)
Title: Improvements in the production of glazed tiles and the like
IPC: C04B33/32
Filed: 1957-12-06
Abstract: 898,647. Glazing tiles. POLYCELL PRODUCTS Ltd., and NEUMANN, S. March 4, 1959 [Dec. 6, 1957], No. 38069/57. Class 56. In the production of prefabricated glazed tiles or like ceramic articles, a succession of the articles is passed through a high frequency electrical heating unit for the fusing of the glazing material. An aqueous suspension of the glaze is applied to the previously fired tiles which are passed through a waste heat oven to dry the glaze and then through a high frequency heating unit, the tiles being carried on a conveyer belt which may be used as a neutral or earth electrode therefor. The tiles may have an isolating layer as in Specification 740,154.