baber/WOPTO huggingface dataset:
Patent GB-254781-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M19/12
Filed: 1925-04-03
Abstract: 254,781. Claudel, C. H. April 3, 1925. Spray carburettors.-In a carburettor provided with a throttle valve and a nozzle supplying aerated fuel, a manual control is provided for simultaneously and oppositely varying the quantities of aerated fuel and of main air. As shown, the main nozzle 2, which is provided with air inlets 3 and aerated fuel outlets 4, is surrounded by concentric slides 8, A, the slide 8 controlling the fuel outlets 4, and the slide A varying the size of the annular main air passage 23. The slides are connected by links 12, 17 to a pivotallymounted manually-operated plate 20, the rotating of which moves the slides simultaneously in opposite directions. The slide 8, when lowered, may close the air inlets 3 to the nozzle. A slowrunning nozzle 1 is provided.
Patent GB-1225062-A (GB)
Title: Improvements in or relating to apparatus for use with a computer for solving partial differential equations
Inventor: POSPISIL BORIVOJ
IPC: G06J1/00
Filed: 1968-02-23
Abstract: 1,225,062. Electric analogue, digital computers for differential equations. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. 23 Feb., 1968, No. 8923/68. Headings G4A and G4G. In computing apparatus solving differential equations an electric analogue computing boundary network 6 of resistances solving partial differential equaltions of the second or fourth order is connected over a switch 2 to a source 1 of voltage defining boundary conditions given by the values of the solved function on the boundary, or of current defining boundary conditions given by the values of the first derivative of the solved functions with respect to the normal at the boundary; the switch being operated by pulses from a programme controller 3 to connect the source to n points on the boundary in succession; the controller pulsing analogue/digital converter 4 after each step to measure boundary condition between two nodes of the resistive boundary network. After n points of the boundary have been traversed, the input of the A/D converter is transferred to further measuring points and the procedure repeated, so that eventually a matrix of n<SP>2</SP> boundary condition values is obtained. These are recorded at 5 and applied to a digital computer 7 as coefficients of n linear equations in n unknowns to be solved thereby. Where the measured quantity to be applied to the A/D converter must be computed from one or more direct measurements by a series of mathematical operations, the digital computer is first programmed to produce a modified matrix of n<SP>2</SP> values for application to the computer.
Patent GB-453891-A (GB)
Title: Improvements in or relating to expanding curtain rods
IPC: A47H1/18
Filed: 1935-03-21
Abstract: 453,891. Making springs; wire. HOMMADE, Ltd., Enfield Road, Acton, and SUTTON, R. J., 231, Ladbroke Grove, both in London. March 21, 1935, No. 8925. [Class 83 (ii)] [See also Group XIV] An expanding curtain-rod R is formed of a single close helix of wire of rectangular section with round corners. The wire may be flattened or drawn to the required section and subsequently coiled, or shaped steel flattening rollers may be incorporated in the cooling mechanism.
Patent GB-1040772-A (GB)
Title: Hot melt coating composition
IPC: C08L33/02
Filed: 1963-03-06
Abstract: A composition comprises petroleum wax with (A) or (B) wherein (A) is a copolymer of ethylene or propylene with another monomer and ceresin wax or polyethylene, and (B) is polypropylene and polyethylene. Preferred waxes are paraffin and/or microcrystalline wax, and the exemplified copolymers are those with vinyl acetate or ethyl acrylate.  Optional ingredients are polyterpene resins, rosins, copal, ester gums and antioxidants such as dialkyl phenol sulphide. The compositions find application as coatings and as moulded articles.ALSO:A composition comprises petroleum wax with (A) or (B), wherein (A) is a copolymer of ethylene or propylene with another monomer + ceresin wax or polyethylene, and (B) is polypropylene + polyethylene.  Preferred waxes are paraffin and/or microcrystalline wax, and the exemplified copolymers are those with vinyl acetate or ethyl acrylate.  Optional ingredients are polyterpene resins, rosins, copal, ester gums and antioxidants such as dialkyl phenol sulphide. Applications specified are as coating compositions, particularly for milk containers, and as moulded articles such as tomato baskets, soap dishes and strawberry cartons.ALSO:Paper, cardboard or kraft board is coated with a composition comprising petroleum wax with (A) or (B) wherein (A) is a copolymer of ethylene or propylene with another monomer plus ceresin wax or polyethylene, and (B) is polypropylene plus polyethylene.  Preferred waxes are paraffin and/or microcrystalline wax, and the exemplified copolymers are those with vinyl acetate or ethyl acrylate.  Optional ingredients are polyterpene resins, rosins, copal, ester gums and antioxidants such as dialkyl phenol sulphide.
Patent GB-322708-A (GB)
Title: Improvements in or relating to drums, crates or like containers and closures therefor
IPC: B65D43/02
Filed: 1929-03-20
Abstract: 322,708. PrÚ, H. E. du. March 20, 1929. Covers; contents, viewing; bands, strengthening.-The end of a box, crate, drum, &c. is closed by two separate members which are inserted independently of one another and are secured in position by the engagement of their ends or edges with internal projections or recesses adjacent the end of the box, one at least of the members being flexible and sprung into position. As shown in Figs. 1 and 2, the members 8, 9 are both flexible and the ends thereof are sprung into engagement with a recess 7 formed between spaced strips 5, 6 secured to the inner surface of the drum 1 near the open end thereof; hand-holes 10 or other means are formed in or on the wider member 9 to facilitate the flexing thereof. Rope loops 11 may be provided for handling the drum and these may be tied over the members 8, 9 by a length of rope 12. In a modification, Fig. 4, the member 8 is in the form of a ring and the member 9 in the form of a circular dished lattice-work of flexible strips, through which the contents of the drum may be viewed. The closure members brace and reinforce the end of the drum &c. The ring-shaped closure member 8 may be used with a wide flexible member 9 or with a member 9 which can be entered into the end of the drum past the strip 5 without flexing, the member 9 being then given a quarter turn to wedge its ends beneath a pair of stops or projections on the strip 5.
Patent GB-759298-A (GB)
Title: Process for coal hydrogenation
IPC: C10G1/06
Filed: 1954-03-29
Abstract: The reaction temperature during the hydrogenation of coal/oil paste under pressure is rapidly reduced when desired, e.g. if it rises near the coking level at about 550 DEG C., by introducing water into the converter while the reaction mixture is undergoing rapid agitation by means of a rotating <PICT:0759298/III/1> stirring device.  The converter shown consists of a high-pressure vessel 10 containing a draft tube 11.  A shaft 12, with a propeller 13, extends into this draft tube; and causes circulation of the mixture up the tube and down the annular space between the tube and the wall of the converter.  Alternatively, the direction of circulation can be reversed.  To inject water into the converter, a high pressure pump (not shown) is provided, which connects through pipe 14 to feed-line 15 going into the base of the converter, so that the water and steam passes up draft tube 11 where it intimately mixes with the circulating stream of coal paste and hydrogen.  The coal hydrogenation products flow down overflow pipe 16, and leave the converter through pipe 17.  In an example, bituminous coal dispersed in pasting oil is hydrogenated at a pressure of 4500 psi and at a temperature of 535 DEG C.; and the converter contains 9 pounds of material.  When, during a period of 6 minutes, 0.6 pounds of water are injected into the converter there is a drop in temperature of 25 DEG C. to 50 DEG C., and the rate of reaction is materially reduced.
Patent GB-766110-A (GB)
Title: Improvements in cyclone furnaces
IPC: F23C3/00
Filed: 1955-03-29
Abstract: 766,110. Pulverized fuel fired furnaces. BABCOCK & WILCOX, Ltd. March 29, 1955 [April 1, 1954], No. 9083/55. Class 51 (1). In order that a given cyclone furnace may be run at different times on fuels having different characteristics, the primary air entrained fuel and secondary air nozzles are made in the form of replaceable block elements such that the ratio between the sum of the areas of the fuel nozzles and the sum of the areas of the secondary air nozzles may be varied to suit the fuel to be burnt. The furnace chamber shown comprises parts 1a, 1b, 17, lined with cooling tubes 8, 15, the former of which are arranged between headers 9, 10, in two sets 8a, 8b. A slot 3 extends along part 1a of the furnace chamber, being bounded along its edges by cooling tubes, groups of tubes of set 8b being bent out of the wall 2 first longitudinally and then radially of the chamber to form tube platens 13 which extend upwardly across the slot to divide it into six ports 14. Each of these ports houses a replaceable block comprising fuel nozzle 27 and secondary air nozzle 28. All or any number of the blocks may be replaced by blocks comprising only a fuel nozzle or only a secondary air nozzle or fuel and secondary air nozzles having a different ratio of areas from the one it is replacing. In a modified furnace the ports 14 house secondary air nozzle blocks in three of which, equally spaced along the slot, are disposed fuel supply nozzles rotatable about an axis parallel to the furnace chamber axis. If desired, the outlet area of each nozzle 27 or/and each nozzle 28 may be made adjustable by suitable tongue flaps placed in the nozzles. Specification 734,260 is referred to.
Patent GB-728267-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B53/16
Filed: 1953-04-02
Abstract: 728,267. Stuffing-box packing; pistons. HILL, S. D. Jan. 28, 1954 [April 2, 1953], No. 9136/53. Classes 122 (1) and 122 (5). [Also in Group XXVIII] In a manually-operated pump (see Group XXVIII) the open end of the barrel 1 is enlarged at 7 to receive the enlarged end 12 of a stop-sleeve 13 in which the piston-rod 11 slides, the length of the enlargement of the sleeve being less than that of the barrel, and the piston-rod is sealed by a. hat washer 9 pressed against the end of the enlargement 7 of the barrel: by a gland nut 8 screwed thereon. The hat washer may be formed from a polyvinyl chloride washer having a bore less than the diameter of the piston-rod. A cup leather piston 16, which may be of polythene, is secured to the end of the hollow pistonrod 11 by an inlet plug 17 having a passage 19 controlled by a ball valve 21.
Patent GB-410305-A (GB)
Title: Improvements in coating materials for preventing adhesion between contacting surfaces
IPC: B08B17/00
Filed: 1933-03-28
Abstract: A coating-material for preventing adhesion of sticky surfaces comprises a water-soluble metal alginate and a material for reducing the surface tension of its water solution.  Single alginates, or double salts such as zinc ammonium alginate may be used, suitable surface tension reducing agents being soap, saponin or certain alkali metal alcoholates.  Glycerin and glue may be added to the coating-material.  The soluble alginate coating may, after application, be rendered insoluble by treatment with acids or with solutions of salts which would react to produce insoluble alginates. Specification 132,522, [Class 95], is referred to.ALSO:A coating material for preventing adhesion of sticky surfaces comprises a water-soluble metal alginate and a material for reducing the surface tension of its water solution.  Single alginates, or double salts such as zinc ammonium alginate may be used, suitable surface tension reducing agents being soap, saponin or certain alkali metal alcoholates.  Glycerin and glue may be added to the coating material. The soluble alginate coating may, after application, be rendered insoluble by treatment with acids or with solutions of salts which would react to produce insoluble alginates.  Specification 132,522, [Class 140], is referred to.
Patent GB-576862-A (GB)
Title: Improvements in tube or pipe couplings
IPC: F16L19/08
Filed: 1944-05-16
Abstract: 576,862. Pipe joints. ARMSTRONG, J. J. V. (Parker Appliance Co.). May 16, 1944, No. 9325. [Class 99 (i)] In a pipe joint of the kind in which a sealing sleeve 9 is adapted to be contracted on to the pipe by a coupling nut 17 screwing on to the socket 8, the sleeve has an intermediate flange 10 adapted to be engaged by the coupling nut or by a separate clamping ring 14 to limit the degree of contraction of the outer end of the sleeve. Slots 9a extend from the outer end of the sleeve to a point beyond the flange 10. The inner end of the sleeve,has a tapered surface 13 engaging a corresponding surface 5 in the mouth of the socket and may be forced into the pipe until the flange 10 engages the end of the socket. At the same time the end of the pipe will be deformed against a tapered surface 6 in the base of the socket. The ring 14 and sleeve have correspondingly tapered engaging surfaces.
Patent GB-1242266-A (GB)
Title: (tetrachloro-fluoro-ethylthio) n-phenyl sulfonamides and their use in controlling pests
Inventor: EPSTEIN PETER FRANCIS
IPC: C07C311/02
Filed: 1968-10-04
Abstract: 1,242,266. Biocidal compositions. STAUFFER CHEMICAL CO. 4 Oct., 1968, No. 9348/71. Divided out of 1,242,265. Headings A5B and ASE. [Also in Division C2] Pharmaceutical and pesticidal preparations especially suitable for treating acarids, fungi, bacteria and in particular helminths such as tape worms, contain I as active ingredient where R 1  is C 1  to  5  alkyl, C 2  to  5  alkenyl or C 1  to  5  haloalkyl and R 2  is H, halogen, CN, NO 2 , C 1  to  5  alkyl or C 1  to  5  alkoxy or when R 1  is Me or haloalkyl R 2  signifies two chlorines at positions 2- and 4- respectively. The preparations may be administered in admixture with a carrier or feed supplement or in unit dosage form, viz. bolus, tablet, capsule, a liquid drench or injection; in treating insects, fungi or bacteria emulsions, non-aqueous solutions, wettable powders, vapours and dusts may be utilised.
Patent GB-783802-A (GB)
Title: Improvements in or relating to means for fixing knobs to shafts
IPC: G05G1/12
Filed: 1955-03-31
Abstract: 783,802. Securing elements on shafts. COLE, Ltd., E. K., and KNIGHT, R. J. April 3, 1956 [March 31, 1955], No. 9352/55. Class 80 (2). Means for securing an operating knob 1 on to a spindle 2 of an electrical component such as a switch or radio tuning device comprises a spring clip 6 adapted to engage a recess 5 of a boss 4 of the knob and having a re-entrant projection 7 which passes through a radial slot 8 in the boss 4 and engages in a longitudinal groove 3 of the spindle 2.
Patent GB-1085509-A (GB)
Title: Improvements in and relating to programme control devices for automatic book stitching machines
Inventor: GERMER KURT
IPC: G05G21/00
Filed: 1966-03-03
Abstract: 1,085,509. Counters. LEIPZIGER BUCHBINDEREIMASCHINENWERKE VEB. March 3, 1966, No. 9379/66. Heading G4D. [Also in Division D1] An automatic book-stitching machine has control means comprising a pair of drums which rotate step-by-step in opposite directions in correspondence with the number of sheets stitched, the directions of rotation being reversed on completion of the required number of sheets. A drum 2 is rigid with a rotary shaft 1, and a drum 4 is journalled on shaft 1. The inner ends of the drums are provided with gearwheels 7 and 8 respectively, and the outer ends of the drums are provided with ratchet wheels 9 and 10 respectively. The rim of drum 4, adjacent ratchet wheel 10, is provided with a scale (6) having numerals equal in number to the number of teeth on a ratchet wheel. A disc, rigid with shaft 1, is provided at its rim with a scale (5) similar to scale (6) and located contiguous to the latter. A gear pinion (11) meshes with gear 8 and normally meshes with a gear pinion (12) meshing with gear 7, whereby drums 2 and 4 normally rotate in opposite directions. Pinion (12) is movable axially against spring bias to disengage from gear (11), whereby the drums may be rotated independently of one another, when drum 4 is rotated to locate numeral zero of scale (6) in an initial position, and disc 2 is rotated to locate a numeral of scale (5) equal to the number of sheets to be sewn, opposite the numeral zero of scale (6). A frame 31, 32, 33, adapted to be oscillated in unison with the operation of the sewing machine via a linkage 33a, carries pivoted pawls 16 and 27. Respective pins 36 engage with the pawls and with recesses 38 at the respective ends of a pivoted bar 21. When numeral zero of scale (6) is in its initial position, a pin 17 projecting from drum 4 engages an abutment 20 on bar 21 to rock the latter clockwise, whereby pawl 16 is engaged with ratchet wheel 10, pawl 27 is disengaged from ratchet wheel 9, and a roller 26, carried by a spring-biased lever 24, engages a detent notch 23 in bar 21. When the machine is started, the drums are rotated in opposite directions by one step for each oscillation of frame 31, 32, 33, whereby pin 17 recedes from bar 21 and a pin 18 projecting from drum 2 approaches bar 21 to engage an abutment 19 thereon after a number of oscillations equal to the numeral of scale (5) initially set opposite the zero of scale (6). Bar 21 is thereby rocked counterclockwise to disengage pawl 16 from ratchet wheel 10, to engage pawl 27 with ratchet wheel 9, and to engage roller 20 with a detent notch 23a, while a pin 42 on bar 19 actuates a microswitch 41. The machine then stops. The ma chine on being re-started will operate until pin 17 re-engages abutment 20. The drums are provided with additional pins 43 adapted to co-operate with rollers 50 carried by levers 44, 45, 46, 47, whereby pawls 51, 52 advance a drum 53 carrying pins 54 adapted to actuate associated microswitches for exercizing various control functions.
Patent GB-897392-A (GB)
Title: Improvements in synchronizing arrangements for use in electrical signalling systems
Inventor: GREEN NORMAN GEORGE
IPC: H04L7/033
Filed: 1959-03-18
Abstract: 897,392. Automatic frequency and phase control systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. March 16, 1960 [March 18, 1959], No. 9410/59. Class 40(5). A local pulse source, comprising crystal oscillator O and dividers D1-D3, is synchronized with signals received at S by applying the signals and pulses to gates G1 and G2 which are respectively arranged to transmit pulses when the signals are leading and lagging the pulses; each pulse from G1 or G2 charges a capacitor in an integrator II or 12, and when a predetermined potential is reached a gas discharge tube is fired to apply a pulse to a monostable flip-flop F1 or F2 which changes its state momentarily and applies a biasing pulse to alter the operating time of divider D1. The received signals comprise a square waveform having half the frequency of the output of D3, differentiation P1, P2 produce pulses on the occurrence of each rising edge of the square waveform, and the output of D3 applied to G1 and terminal T1 is the inverse of that applied to G2 and terminal T2.
Patent GB-1147714-A (GB)
Title: Improvements in or relating to electric switches
Inventor: RUSSENBERGER VICTOR
IPC: H01H23/16
Filed: 1967-02-28
Abstract: 1,147,714. Snap-action switches. V. RUSSENBERGER. 28 Feb., 1967, No. 9411/67. Heading H1N. The rocking contact strip 12 is pivoted by side lugs 11 respectively seated in a notch 13 in a boss 14 integrally moulded with casing 1 and a notch 10 in an offset terminal strip 8. The centre of strip 12 is stamped to provide a boss on one side as shown. The contact studs 16, 17 may be mounted on the reverse side and the strip inverted so that the plunger 36 engages in the central recess to give a central neutral position (Fig. 7, not shown). The switch is mounted in a support by means of flange 4 and flexible grips 1a. Instead of a rocker 30 the plunger 36 may be carried on a rectilinearly-moving actuator. Two rocking strips 12 may be provided, in which case the notches 13 are formed in bosses of a central partition, and a common or two independent actuators may be provided.
Patent GB-125409-A (GB)
Title: Improved Oil or Spirit Flare Light and Carriage for same.
Inventor: MONEY GEORGE JOHN
IPC: F21L17/00
Filed: 1916-07-05
Abstract: 125,409. Money, G. J. July 5, 1916. Porous block and like burners; oil reservoirs.-A flarelight suitable for indicating landing-places for aeroplanes, which is immersed prior to use in liquid fuel comprises a casing perforated, reticulated, or otherwise arranged for the exit of fuel vapour and provided internally with fuel-retaining receptacles. The flare-light shown in Fig. 4 consists of a metal wire cage h lined with asbestos j, which is conveniently applied wet and may be perforated, a series of shallow receptacles k connected together by wires l, &c., and carbonized cotton fibre, asbestos, mineral wool, or other packing i between and around the receptacles. A receptacle may be provided for charging and extinguishing single flares, or a number may be charged, extinguished, or stored in a wheeled tank g, Fig. 1, divided by partitions b and provided with drain cocks c, a vent e, and a sliding burner-extinguishing cover p having at each side an inturned flange which slides on the lower of two out-turned flanges on the tank. Double flanges p<2>, p<3> engage similar flanges g<3>, g<4> on the tank.
Patent GB-897127-A (GB)
Title: Improvements in or relating to magnetic information storage systems
Inventor: JAMES BRIAN HARRY LAWRENCE
IPC: G11C11/06
Filed: 1961-03-15
Abstract: 897,127. Circuits employing bi-stable magnetic elements. MULLARD Ltd. March 15, 1961, No. 9496/61. Class 40 (9). [Also in Groups XIX and XL (c)] Pulses from a co-ordinate magnetic store having a common read-out winding are separated from noise pulses by a circuit comprising a differentiator which is rendered operative by strobe pulses. Fig. 1 shows the output from the read-out winding of a matrix of magnetic cores, the desired output pulses having a maximum at t3 and the undesired pulses having a maximum at t2. By differentiating the pulses at time t4 an output corresponding to the desired pulse only is obtained. In Fig. 2 the pulses are applied from read-out winding S to the bases of two transistors T1, T1a connected as a " long-tailed pair." The output of T1 is fed via a clipper circuit D1, D2 to an emitter follower T2. This feeds a differentiator Cd, Rd, the output of which is amplified by a transistor T4. The output terminals of the differentiator are short-circuited by a transistor T3 except at time T4 when a strobe pulse appears at terminal P7. The transistor, when conducting, blocks the output circuit and also ensures that the output always starts from the same level during the strobe interval. Transistor T1a is connected to a similar circuit (not shown), and the outputs from the two circuits may be connected in parallel.
Patent GB-1198995-A (GB)
Title: Improvements relating to Photoconductive Recording Materials
Inventor: VERHILLE KAREL EUGEEN
IPC: G03G5/05
Filed: 1967-02-28
Abstract: 1,198,995. Electrophotographic plate. GEVAERT-AGFA N.V. 23 Jan., 1968 [28 Feb., 1967], No. 9522/67. Heading H1K. An electrophotographic plate comprises a support and a photo-conductive layer comprising a photo-conductor and a binder containing a hydantoin-formaldehyde condensate having recurring units of formula wherein R 1  and R 2  are H or an alkyl radical containing 1 to 5 C atoms. In the embodiments R 1  and R 2  are both methyl. The support may be glassine paper, A1, conductively coated paper or plastics or laminated paper and metal foil. The photoconductor may be ZnO. Preferably copoly(maleic anhydride/N-vinyl pyrrolidone) is added as a dispersing agent together with acid butyl phosphate.