baber/WOPTO huggingface dataset:
Patent GB-1155623-A (GB)
Title: Error Reduction Coding for Digital Facsimile
IPC: H04N1/32
Filed: 1966-08-12
Abstract: 1,155,623. Facsimile transmission; digital transmission systems. XEROX CORP. 12 Aug., 1966 [30 Aug., 1965], No. 36096/66. Headings H4F and H4P. In a facsimile system comprising a transmitter for transmitting a bi-level video electric signal train wherein a first level is indicative of information to be transmitted and wherein a second level is indicative of absence of information and a receiver responsive to received video signals for reproducing the information, the streaking effect of errors due to noise or extraneous signals in the transmission path is reduced to one bit errors in the printed document at the receiver by creating a number of error-correcting transitions during otherwise transitionless transmission times in the transmitted facsimile signals by logically mixing or combining the bi-level video pulse train and a basic timing or clock pulse train at the facsimile transmitter. In the transmitter the video signal output of a light responsive detector which scans the document to be transmitted is passed via a clocked squaring amplifier to one input of an AND gate, its other input being connected to the output of a time base generator generating the clock pulse train. The output of the AND gate is passed to a flip-flop circuit and the transmitted signal corresponds to the bi-level pulse train from the amplifier with the background of informationless signals chopped or divided at the clock rate, i.e. the transmitted signal is coded. In the receiver the signal is decoded by means of two logical gates fed with the output of a time base base generator, synchronized with the time base generator in the transmitter, and the received signals which have been shaped, differentiated, delayed and rectified, and the outputs of the gates are fed to a flip-flop circuit. The output of the flip-flop circuit, i.e. the decoded signal, is fed to a marking means which scans a recording drum and the decoded signal is such that any error signals picked up during the transmission of the facsimile information signals appear in the decoded waveform as single bit errors. The Specification states that this reduction in the error duration time to a single bit eliminates the streaking which would occur since an error signal normally generates a succession of errors continuing until the occurrence of the next noise or legitimate information bit in which the transition is opposite to the noise effect.
Patent GB-428203-A (GB)
Title: Improvements in plug-and-socket couplings for electric conductors
IPC: H01R13/453
Filed: 1934-12-17
Abstract: 428,203. Plug couplings. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Dec. 17, 1934, No. 36135. Convention date, Dec. 16, 1933. Addition to 340,363. [Class 38 (i)] In a plug-and-socket coupling as described in the parent Specification in which an insulating disc is moved to cover the socket contacts during the withdrawal of the plug and the complete separation of the plug and socket members is prevented until the socket contacts are thus covered, the insulating disc 8 slides lineally in a suitablyshaped guide under the control of a key-shaped member 21 engaging a cam-shaped aperture 17, the necessary rotation of key 21 during the insertion and removal of the plug being produced by the angular displacement of slots 18, 16 in the body 7 and the cover plate 9, respectively. The disc 8 is designed to cover four socket elements and a fifth (earthing) contact may be provided for by forming the key-carrying pin 15 with an internal socket 19 adapted to co-operate with a pin 20 in the slot 18. The plug and socket members have enclosing hoods 3, 4 and a locking ring 1<a> may be provided.
Patent GB-1402884-A (GB)
Title: Butterfly valve actuating mechanism
IPC: F16K31/163
Filed: 1972-08-03
Abstract: 1402884 Fluid-pressure servomotor systems DAYTONA BUTTERFLY VALVES Ltd 1 Aug 1973 [3 Aug 1972] 36226/72 Heading G3P [Also in Division F2]  Butterfly valve actuating mechanism comprises an eccentric pin 18 pivotally coupling a crank arm 14 on the butterfly spindle 11 to the bifurcated rod end of a piston 15 moving in a cyclinder 16 pivoted at 17 to a fixed part. A fluid-pressure rotary vane actuator 21 is bolted to the piston-rod and is coupled to trunnions 18 having an eccentric circular cam 19 within the crank 14. A positioner 24 proportions the fluid pressure of a supply line 27 between the lines 25, 26 connected to opposite ends of the cylinder 16 according to the pressure in control line 28. When the valve is initially opened the pressure in line 25 actuates a valve 29 which in turn actuates a valve 30 to connect the supply pressure to the rotary actuator 21. The cam 19 is thus rotated to move the crank 14 relative the piston-rod and partially open the valve the piston-cyclinder unit 15, 16 can then move the butterfly to the position corresponding to the control pressure. The actuator 21 is moved in the opposite direction when the valve is completely closed. Valve 30 may be directly actuated by the pressure in line 25.
Patent GB-871657-A (GB)
Title: Improvements in or relating to tube boilers
IPC: F22B9/04
Filed: 1958-11-11
Abstract: 871,657. Water tube steam boilers; tubular heat-exchange elements. SVENSKA MASKINVERKEN A. B. Nov. 11, 1958 [Nov. 13, 1957], No. 36227/58. Classes 64(3) and 123(2) A composite, waste-heat, water-tube, boiler comprises an annular steam and water drum 14, 15 which accomodates, within an inner wall 22, a direct-fired boiler and is housed in a casing 11 having an inlet 12 and an outlet 13 for the flue gases e.g. of a diesel engine. The drum 14, 15 has a number of radial distribution headers 17 between which and the conical upper portion of the drum is connected a plurality of concentric rings of vertical tubes 18 carrying pin fins 19 comprising copper wires which may each have an outer steel sheath. The direct-fired boiler comprising a fireplace 23, a flue gas duct, 24, and a muffle 25 for a burner, not shown, has finned steam generating tubes 26 which communicate, through extensions 29, 28 respectively, with the steam and water spaces 15, 14 of the drum.
Patent GB-1234841-A (GB)
Title: Improvements in or relating to electrically heated vessels for boiling liquids
Inventor: HUMPHRIES JOHN GABRIEL
IPC: H01H37/54
Filed: 1968-07-30
Abstract: 1,234,841. Thermal switches. N. C. JOSEPH Ltd. 16 July, 1969 [30 July, 1968], No. 36241/68. Heading H1N. [Also in Divisions A4 and H5] In an electrically-heated vessel such as a kettle, a thermostat 16, Fig. 1, is mounted externally of the vessel on the shell part covering the gas or vapour region and comprises a bimetallic disc 19, Fig. 2, in thermally conductive relationship with the shell whereby it is sensitive to the gas or vapour temperature but out of contact with the gas or vapour. The switch 16 is mounted within a hollow portion of the vessel handle 18 and comprises a casing end part 39 having a flexible skirt 40 of berylliumcopper which is adjustably pressed against the shell of the vessel by means of a screw 32, accessible by a screw-driver inserted through a hole 36 (not shown) in the wall 30 of the handle 18. The body of the switch 16 comprises a heat-insulating block 26 engaged by the screw 32 and guided in the handle 18 between studs 27 bolted at 28, 29 to the handle wall 30. A two-way manual switch 20 is provided for shorting out the thermal switch when required. A pair of indicating lamps 21 (22) on the handle indicate respectively when the heater is in circuit and if the switch 20 is switched to the position shorting out the thermal switch 16. An auxiliary thermostat 17 is also provided near the heater 15 to operate when the kettle boils dry. Reference has been directed by the Comptroller to Specification 1,018,818.
Patent GB-626896-A (GB)
Title: Improved process for, and apparatus for use in, impregnating or coating metallic articles
IPC: C23C10/28
Filed: 1946-12-07
Abstract: 626,896. Coating metals; cementation. MILLS, J. C. Dec. 7, 1946, No. 36243. [Classes 72 and 82(ii)] In a process and apparatus for impregnating or coating metal articles, e.g. coating with zinc or aluminium or impregnating steel with carbon for case-hardening the articles, together with an impregnating or coating mixture comprising powdered impregnating material and sand or other inert powder, are progressively conveyed (in baskets 10) along a continuously rotating tube 11 extending through one or more furnaces 24, 25 beyond which, at 27, the mixture is continuously extracted and conveyed back to mixture-adding chamber 23 located between the (first) furnace and the entrance end of the tube 11, in which chamber it is mixed with additional mixture and articles and re-conveyed through the tube 11 and the furnaces. Baskets 10 containing the articles and mixture are successively fed to a table 14 and pushed into the tube 11, which together with the chambers 23, 27 is filled with an inert gas, by a push-bar 15. On reaching the extraction chamber 27, used mixture falls through the perforations 28 in the tube and is returned by screw-conveyer 31 to the mixture-adding chamber 23 where rotating brackets 33 pick up the mixture and deliver it above the tube 11 which here has perforations 28a so that it falls back into the baskets 10, a shield 34 preventing loss from the tube. The first few baskets only contain an adequate quantity of mixture, which is reduced in subsequent baskets as the used mixture is returned for re-use. On reaching the chamber 36, the articles are cooled by sand carried round by vanes 38 and falling through the perforations 37, the sand and chamber 36 being cooled by water carried round by scoops 39 from a sump 40.
Patent GB-1109921-A (GB)
Title: Improvements in or relating to hydraulic governors
IPC: G05D13/00
Filed: 1965-08-24
Abstract: 1,109,921. Fluid-pressure servomotor systems; centrifugal governors. CURTISS-WRIGHT CORPORATION. Aug. 24, 1965 [Oct. 6, 1964], No. 36279/65. Headings G3B and G3P. [Also in Divisions F1 and F2] . An isochronous engine governor comprises a driven rotor 10 provided with a diametrical bore 33 housing a valve member 30 adjustably loaded by a spring 40. Each side face of the rotor is adapted to act as a pump by providing blades 65, 65' on the rotor and co-operating annular recesses 68, 68' in the housing, each of the latter being divided into a suction chamber and a delivery chamber by a partition (69). The pumps are connected in series or, as shown, in parallel, in which their delivery chambers communicate with an annular groove 80 communicating with a cylinder 60 housing a piston 56, and with a bore (34) communicating via valve 30 with a second cylinder 61 housing a piston 57. The pistons 56, 57 are connected to a lever 58 connected in turn to a throttle valve 55 and a rod 83 carrying a third piston 82. In operation, above a predetermined speed the valve 30 moves outwardly to admit fluid from groove 80 to cylinder 61 to cause piston 57 to rotate lever 58 to decrease the fuel supply to the engine. To obtain isochronous governing, as lever 58 rotates it lifts piston 82 to lower the pressure below the valve 30 via passage 45a, thereby causing a pressure difference across the valve tending to return it to its neutral position. This pressure difference diminishes at a rate determined by needle valve 85. A two-way proportioner piston 84 is provided. The seat 43 of spring 40 is adjustable while the engine is running by means of a threaded pin 48 connected to a triangular-section rod 45 engaging the seat with its tapered end 46, the connection between the pin and rod being in the form of a thrust bearing (50). In Fig. 5, (not shown), the valve 131 controlling supply to cylinder 61 is connected to a flyweight 131' via hollow rod 141. In the modification of Fig. 6, (not shown), the pressure in cylinder 61 is controlled by a unitary valve and flyweight (241) co-operating with an adjustable nozzle (243) located downstream of a fixed restriction (260).
Patent GB-972391-A (GB)
Title: A clamp for telescoping tubes
Inventor: HAY DONALD WILLIAM ALEXANDER
IPC: A47C3/28
Filed: 1962-09-25
Abstract: 972,391. Seats. COX OF WATFORD Ltd. July 5, 1963 [Sept. 25, 1962], No. 36369/62. Heading A4J. [Also in Division E2] A clamp for fixing a pair of telescoping tubes 1, 2 at various degrees of extension, comprises a slug 3 in the inner tube 1, a wedge 6 extending along and fixed to the bore of the inner tube 1, and a screw 4 for drawing the slug 3 towards the wedge and pressing the inner tube towards the outer tube. As shown, applied to a chair, wedge 6 is formed by pressing in a part of the tube 1. The screw 4 is engaged by a clamping unit 5.
Patent GB-1113962-A (GB)
Title: Rotary card file for desk top use
IPC: B42F17/28
Filed: 1965-08-24
Abstract: 1,113,962. Filing papers. ACME VISIBLE RECORDS Inc. 24 Aug., 1965 [10 Sept., 1964], No. 36389/65. Heading B6E. A rotary card file for desk-top use comprises a number of open-topped card trays 24 pivotallymounted at 28, 29 on discs 22, 23 keyed to a rotatable shaft 19, devices being provided to maintain the trays with their open sides horizontal as the discs are rotated. The discs may be rotated manually or by means of a motor coupled to the shaft 19. Brake means are provided to hold the discs in any position to which they have been turned. The file comprises two side frames 11, 12 adjustably connected at their bottom corners by crossmembers 13, 14. To the insides of the frames are attached brackets 17, 18 with flanges 17A, 18A in which are journalled the ends of the shaft 19. A spring 45 on the shaft 19 extends between the disc 23 and the flange 18A and serves as a brake to prevent unwanted rotation of the shaft. One of the pivots of each tray comprises a pin 28 fixed to the tray and journalled in the disc 22, the pin 28 also being fixed to a link 44 pivoted at its lower end to an annular member 36. The inner surface of the member 36 rides on two rollers 39 adjustably carried by the bracket 17 and so arranged that the axis of rotation of the member 36 is vertically below the shaft 19 and spaced therefrom a distance equal to the effective length of each link 44, thus causing the trays to be maintained always in horizontal position.
Patent GB-1112296-A (GB)
Title: Polymerization process
Inventor: POPE GEORGE ARTHUR
IPC: C08F10/14
Filed: 1964-10-04
Abstract: Amorphous polymers of an (n - 1)-methyl-1-alkene monomer, in which n represents the number of carbon atoms in the main alkene chain and is greater than 3, are made by polymerizing an (n - 1)-methyl-1-alkene monomer with or without at least one further copolymerizable monomer in the presence of a catalyst system comprising a boron trialkyl or a boron dialkyl halide and a compound of a metal of the A subgroups of IV to VII or Group VIII of the Mendeleeff Periodic Table.  The molar ratio of the boron trialkyl or boron dialkyl halide to the metal compound is within the range 2:1 to 9:1 inclusive.  The term "morphous polymer" excludes polymers formed exclusively by 1,2-addition of (n - 1)-methyl-1-alkenes, and includes polymers which contain a high proportion of structures resulting from 1,3-, 1,4-, 1,5- etc. addition.  Specified alkenes are 3-methyl-1-butene, 4-methyl-1-pentene, and 5-methyl-1-hexene. Isobutylene is the specified copolymerizable monomer.  Exemplified catalysts are boron triethyl and VOCl3, and boron triethyl and VCl4. Example III describes the copolymerization of 4-methyl-1-pentene and isobutylene.
Patent GB-625927-A (GB)
Title: Improvements in or relating to frequency analysers
IPC: G01R23/00
Filed: 1946-12-10
Abstract: 625,927. Frequency analysers. SOC. INDUSTRIELLE DES PROCEDES LOTH. Dec. 10, 1946, No. 36431. Convention date, July 1, 1943. [Class 37] A frequency spectrum A to be analysed and a search tone S, the frequency of which can be controlled are supplied to a double push-pull modulator 4, the output circuit of which is connected to a selective voltmeter 13. The spectrum A is passed via a transformer 1, low-pass filter 2, and transformer 3 to each of two simple push-pull systems 5, 6 and 7, 8, the output circuits of which are connected in push-pull through an output transformer 9. The search tone S of adjustable frequency produced by a generator 11 is supplied through a transformer 10 to the suppressor grids of the pentodes 5, 6, 7, 8 in anti-phase for the two push-pull systems 5, 6 and 7, 8. The output signal of the modulator 4 is supplied to the voltmeter 13 through an amplifier 12 tuned to a frequency F o . This may be lower than the minimum frequency of the search tone, in which case the limit frequency of the input filter 2 is not more than 2F o . Alternatively the frequency F o  may be higher than the maximum frequency of the search tone S, in which case the limit frequency of the input filter 2 is not more than F o /2. Specification 618,562 is referred to.
Patent GB-1477150-A (GB)
Title: Pigment compositions
IPC: C09D11/02
Filed: 1974-08-21
Abstract: A pigment composition in bead form is prepared by mixing 1 part by weight of a water-insoluble organic base which melts below 100 DEG C with an aqueous dispersion containing 0.25-2.3 parts by weight of a pigment, at a temperature above the melting point of the organic base in the presence of a protective colloid until the pigment has combined with the base, and the aqueous phase is virtually free of pigments, and isolating the resulting beads. These pigmented beads can be used for the production of inks and for colouring surface coatings and plastics.
Patent GB-1034807-A (GB)
Title: Improvements in or relating to wheels
Inventor: WEISS KARL RUDOLF
IPC: B60B15/20
Filed: 1961-10-13
Abstract: 1,034,807. Vehicle wheels. WAR DEPARTMENT SECRETARY OF STATE. Oct. 12, 1962 [Oct. 13, 1961], No. 36792/61. Heading B7C. A wheel comprises a series of tiltable plates or shoes 9, resiliently connected together to form the wheel rim, in which each shoe may tilt when in contact with the ground by sliding movement relative to a resiliently supported guiding member 6. Guiding members or shrouds 6 are connected together by studs 7 and thrust members 8 which in turn bear on bands 5 of wire rope or spring steel supported by resiliently mounted blocks 4 on the hub 1 of the wheel. Each shoe 9 slides on rollers 11, 12 in its concave shroud 6, and shoes are connected together by telescopic links 13 of hydraulic, pneumatic or spring type. Each shoe tilts in its shroud to a greater extent in softer ground to give improved grip. The shoes may be encircled by a further resilient, endless track band.
Patent GB-1240526-A (GB)
Title: Improvements in diamond compacts
IPC: B01J3/06
Filed: 1968-08-01
Abstract: 1,240,526. Diamond compacts. GENERAL ELECTRIC CO. 1 Aug., 1968 [8 Sept., 1967], No. 36802/68. Heading C1A. A high strength coherent polycrystalline diamond compact consists essentially of a plurality of boron-doped diamond particles which particles contain at least 0.01% by weight boron; said compact containing no more than 2% by weight of a material other than diamond, such material if any being boron, tantalum, molybdenum, titanium and carbides of these elements; said compact having a density in excess of 91% of the theoretical density of single crystal diamond. The diamond particles are preferably less than 20 microns. The compacts may be produced by compacting the boron doped diamond particles with or without the additive material either as a matrix or coating on the diamond particles at a pressure in excess of 50 kilobars and a temp. in excess of 1300‹ C. to form the desired high strength coherent compact. The compacting step may be performed in a reducing environment.
Patent GB-850064-A (GB)
Title: Improvements in or relating to hydrogen gauges
IPC: G01N27/12
Filed: 1958-11-17
Abstract: 850,064. Hydrogen gauges. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 17, 1958 [Nov. 21, 1957], No. 36882/58. Class 40 (1). A hydrogen gauge comprises a first wire whose resistance is dependent on the hydrogen concentration in a liquid in which the wire is immersed together with a second, temperature compensating, wire whose resistance is independent of the hydrogen concentration but whose initial resistance and resistance temperature coefficient are similar to those of the first wire, mounted on a supporting means that allows free flow of fluid to the wires. The preferred embodiment shown in Figs. 1 and 3 comprises a support and sealing means 20 screwed into the wall 36 of the liquid enclosure and sealed therein by packing ring 40, the support carries a mandrel 56 of generally cruciform cross-section would with the two windings, the sensing winding, preferably of palladium, and the temperature compensating winding, preferably of platinum, and a tubular perforated housing 24, into which the mandrel is inserted, preferably fabricated of a corrosion resistant material e.g. stainless steel or zirconium.. The connecting leads to the windings are brought out for connection to the measuring circuit via passages in an elongated insulating member 68 which is sealed to housing 20 by member 70 the leads being sealed in cavity 92 by a lava type sealant. The measurement of resistance of the wires may be by ohm-meter, or bridge as shown in Fig. 1. Alternatively the hydrogen sensing wire may form one arm of a wheatstone bridge with a second arm formed by the temperature compensating wire in series with a calibrated variable resistor, the other two arms being identical fixed resistors. When the bridge is balanced by adjustment of the variable resistor, after unbalance due to presence of hydrogen, the value of the variable resistance corresponds to the increase in the resistance of the sensing element due to the presence of hydrogen. A further circuit is shown in which the degree of unbalance of a bridge, consisting of the sensing element, the compensating element, and two identical fixed resistors, is used as an indication of the percentage of hydrogen present in the liquid surrounding the gauge.
Patent GB-1346354-A (GB)
Title: Stuffing-box packing
IPC: F16J15/56
Filed: 1971-08-05
Abstract: 1346354 Stuffing-box packing SIEMENS A G 5 Aug 1971 [6 Aug 1970] 36957/71 Heading F2B  A pump plunger 1 or other reciprocating member is sealed by stuffing-box packing 3 comprising spaced packing rings 8 each having a slot 15 extending between its peripheral faces and intermediate rings 9 disposed between the packing rings and each having a clearance 13 with the plunger and an annular groove 14 in its inner peripheral face. The packing is located between end rings 10 and 11 and compressed by a clamping sleeve 12. The packing rings 8 may be of P.T.F.E. and textile or mineral fabric and the intermediate rings 9 may be of testile fabric and synthetic resin.