baber/WOPTO huggingface dataset:
Patent GB-1405473-A (GB)
Title: Electrical discharge machining apparatus
IPC: B23H1/02
Filed: 1972-09-06
Abstract: 1405473 Electro-erosion COLT INDUSTRIES OPERATING CORP 6 Sept 1972 [13 Sept 1971] 41415/72 Heading B3V [Also in Division H3] The magnitude of the current available to an electro-erosion machining gap 16-18 is controlled in accordance with the selected frequency and duration of the pulses to be applied to the gap. The machining gap 16-18 is connected to a D.C. power supply 10 which is switched by a switching circuit 11 pulsed by a transistorized, astable multivibrator 20. One of ten frequency settings S 1 -S 10  of the multivibrator 20 may be selected by operation of gauged switches 52, 54 which control particular resistor-capacitor combinations. The duration of the pulses is controlled by gauged potentiometers 56, 58. An input F 1 -F 5  representing the frequency setting of the multivibrator 20 and an input C 1 -C 10  representing the multivibrator pulse duration are supplied, through a deck 54a of the switch 54 and a switch deck 56a ganged to the potentiometers 56, 58, to a current control logic circuit 40 which includes NOR gates (Figs. 2-4, not shown) connected in cascade. An output representing the combination of the two input signals is produced from the logic circuit 40 to actuate at least one relay A-E. Fig. 1A. Dependent on which relays A-E are energized, resistors 26-38 of an impedance circuit 24 are connected (except when relay E is energized) in circuit with the machining gap 16-18 thereby controlling the current across the gap. The switches for delivering the power pulses to the gap may include vacuum tubes or transistors.
Patent GB-1362093-A (GB)
Title: Conduit connector
IPC: F16L37/12
Filed: 1972-09-07
Abstract: 1362093 Pipe couplings SUBSEA EQUIPMENT ASSOCIATES Ltd 7 Sept 1972 [7 April 1972] 41555/72 Heading F2G First and second conduits 11, 12, e.g. located underwater, are coupled together by a connector including a seating 31 rigidly attached to the first conduit 11 and for engagement with a flange on the second conduit 12. A plurality of locking levers 9 are movably controlled by a member 10 between a disengaged position (left hand of the Figure) to a locking position in which they engage the second conduit (right hand of the Figure). As shown, the connector includes a groove in the seating 31 to receive a metal seal 14 on the conduit 12 and a plate 21 movable by a tool (not shown) to move the control member 10 which is attached to a plate 21 by elongate studs 23 working within bellows 3 and through seals 4 in a top plate 24. A conical skirt 37 on the lower part of the housing 6 guides the connector on to the second conduit 12 so that the metal seal 14 enters the bore thereof. The top plate 21 is then lowered, moving the control member 10 down so that a cam 9a on the levers 9 engage behind the flange of the conduit 12 to tighten and look the coupling. The lever arms are resiliently flexible. The pressures in an annular oil chamber 19 and a chamber 15 are balanced by the passage of oil through apertures 18 and by admitting water into the chamber 15 through a filter tube 16, 17.
Patent GB-1293437-A (GB)
Title: Improvements in and relating to a method for polishing glass and polishing bases for use in this method
Inventor: BENTHIEN ANDERS
IPC: B24D7/00
Filed: 1970-09-02
Abstract: 1293437 Polishing glass K BALLING- ENGELSEN KEMISK TEKNISK FABRIK AS 2 Sept 1970 41946/70 Heading B3D A method of polishing glass, such as lenses, comprises using a polishing base consisting of a rigid plastics foam, in which a polishing powder was evenly distributed during foaming, and supplying an aqueous dispersion of polishing powder to the base during polishing. The method is stated to use less than one third of the quantity of powder than that used with a base that does not incorporate polishing powder. The foam of the base may be epoxy resin, polyvinyl chloride, urea-formaldehyde or, preferably, polyurethane, and the powder, which comprises approximately. 60% of the weight of the finished base, by cerium oxide or zirconium oxide. The base may be moulded to a desired curvature or milled to shape after moulding. The method may be used to polish plane glass surfaces.
Patent GB-933121-A (GB)
Title: Portable stoves and the like appliances
IPC: F24C3/14
Filed: 1961-11-24
Abstract: 933,121. Portable gas stoves. COMPAGNIE GENERALE DES GAZ LIQUEFIES-COGEGAL. Nov. 24, 1961 [Dec. 9, 1960], No. 42124/61. Classes 75 (1) and 126. A portable stove comprises a stand 1 adapted to receive a container 2 of liquefied gaseous fuel, an internally threaded sleeve 5 supported on the hinged lid 4 of the stand 1 and having a flexible seal-ring 6 engaging the top of the fuel container 2, and a burner 17 screwable into the sleeve 5 and having a tubular cutting member 18 for cutting an area of the fuel container within the seal ring 6. The hinged lid 4 is held on the top of the stand by toggle levers pivoted to the stand and having pivoted clasps engaging hooks on the lid. The cutting member 18 has external splines press-fitted into a complementary portion of the burner. The lower end of the cutting member is bevelled and acts as a rotating knife. A further seal ring 21 is supported around the lower end of the burner. The ends of a spring wire disposed in a circumferential groove 24 in the sleeve 5 are engaged in radial holes in the sleeve and prevent complete withdrawal of the burner by engaging the sealing ring 21. The head 30 of the burner has air inlets 31 and is carried by an injector nozzle 29 screwed into the body of the burner. A sheet metal support 27 for a cooking vessel is screwed on to the burner 17. A cover 12 formed as a cooking container has a pair of pivoted opposite handles 13 with inbent ends 15 for engagement in slots 16 near the base of the stand 1. The burner head, vessel support and injector nozzle may be replaced by a pressure reducer valve to form a lamp.
Patent GB-1369424-A (GB)
Title: Jacquards
IPC: D03C3/12
Filed: 1971-09-22
Abstract: 1369424 Jacquards JOHN T HARDAKER Ltd 22 Sept 1971 [3 Sept 1970] 42259/70 Heading DIE A double lift open shed Jacquard for weaving face-to-face pile fabrics is arranged to distribute the pile warps evenly between the two base fabrics to produce balanced weight fabrics. Each hook 5 has two legs with upper nebs 6 cooperating with oppositely moving griffes 2, 3 and lower nebs 7 cooperating with stationary griffes 4, both legs of the hooks being operated by a single presser needle 10. Upon selection a hook is raised by either griffe and retained in the upper shed by the fixed griffe 4 and neb 7. The next selection lowers the hook by either of the griffes 2, 3. Each hook may shed two oppositely moving healds 12 by way of cords 16, pulleys 17 and spring lingoes 18. (For Figure see next page)
Patent GB-931595-A (GB)
Title: Aminobenzyl sulfonylethanol compounds
IPC: C07C317/28
Filed: 1960-12-08
Abstract: The invention comprises aminobenzene compounds containing at least one m-substituted -CH2SO2CH2CH2OH group, in particular such compounds of formula (I) wherein R1, R2, R3 and R4 may be H, halogen, lower alkyl or lower alkoxy ("lower" denotes 1 or 2 carbon atoms) and R2 may also be -CH2SO2CH2CH2OH.  The compounds are synthesised <FORM:0931595/IV(a)/1> by (1) reacting a nitrobenzene compound with bischloromethyl ether, preferably using hydrated ZnCl2, (2) reacting the m-chloromethylnitrobenzene with mercaptoethanol in presence of an acid binding agent, (3) oxidizing the hydroxyethylmercaptomethyl compound to the corresponding hydroxyethylsulphonylmethyl compound with H2O2 and (4) reducing the nitro group to amino in the product. The examples describe the preparation of (a) 3:5-bis(2-hydroxyethylsulphonylmethyl)-4-toluidine (and its corresponding hydroxyethylsulphonylmethylnitrotoluene and hydroxyethylthiomethylnitrotoluene precursors) and of 3-(2-hydroxyethylsulphonylmethyl)-4-toluidine; (b) the intermediates 2 (and 4)-methoxy-5-nitrobenzylchloride and 2-methoxy-5-nitrobenzylthioethanol.  Other suitable intermediates are listed in the Specification.  Specifications 931,596 and U.S.A. 2,768,217 are referred to.
Patent GB-1137567-A (GB)
Title: Improvements in control systems for electrically heated devices
IPC: H01H61/013
Filed: 1966-09-23
Abstract: 1,137,567. Automatic control of temperature. GENERAL ELECTRIC CO. Sept.23, 1966 |Dec.30, 1965], No. 42509/66. Heading G3R. Control apparatus for an electric blanket 10 having a heater element 26 comprises a device 27 sensitive to the temperature of the blanket, the device having a pair of conductors 28, 29 separated by a layer 30 the resistance of which varies negatively with temperature, the apparatus further including a cyclically operated switch 40 effective to maintain the blanket at a predetermined temperature and a switch 42 which provides ambient temperature compensation. Closure of a switch 33 completes a circuit through contacts 35, 39 of switch 40 and contacts 48, 49 to switch 42 to energize the heater 26 of the blanket 10. A further circuit is made which includes heater 48, conductor 28, heater 44 and conductor 29. Whilst the blanket temperature is below a predetermined value there is little current flow across the layer 30 between the conductors 28, 29 and the effect of the heaters 43, 44 on the bi-metal elements 32, 36 is such that the contacts 35, 39 remain closed with the heater 26 of the blanket energized. Above the predetermined blanket temperature the resistance of the layer 30 assumes such a value that a certain amount of current flows between the conductors 28, 29 across the layer 30. This current flows through the heater 43 whereby the bi-metal element 32 moves to open contacts 35, 39 to de-energize the blanket heater 10. A control knob 51 is provided to allow the user to control the operation of the ambient temperature compensating switch 42.
Patent GB-1520917-A (GB)
Title: Device for removing rail clips from a railway railand-fastening assembly and a method of removing rail clips from such an assembly
IPC: E01B29/24
Filed: 1975-10-17
Abstract: 1520917 Rail clip removing tools PANDROL Ltd 5 Jan 1977 [17 Oct 1975] 42820/75 Heading E1G A hand tool for removing a rail fastening clip from its anchorage in an assembly, Figs. 1-6 (not shown) of the kind disclosed in Specification 1519349 comprises a hand lever 43a pivoted at its lower end to a member 40 for seating against the sleeper, the hand lever carrying (a) a pivoted arm 46 having a wedge 48 which rides along the surface 20 of the clip anchorage and so lifts the clip end 8 above the top projection 25, and (b) a pivoted arm 49 having a clipengagaing projection 51 which subsequently. engages the reverse bend (12) of the clip and so pulls it out of the anchorage passage (21).
Patent GB-1278585-A (GB)
Title: Interconnecting battery plates for an alkaline battery
Inventor: ALLEN BRIAN ROBERT
IPC: H01M50/534
Filed: 1968-09-10
Abstract: 1278585 Brazing JOSEPH LUCAS (INDUSTRIES) Ltd 26 Aug 1969 [10 Sept 1968] 42919/68 Heading B3R [Also in Division H1] In interconnecting a number of battery plates for use in a cell of an alkaline battery, each of which comprises a silver support grid 11 carrying active material and having a silver terminal lug 12, each lug is coated with silver solder having a higher resistivity and lower melting point than silver, the coated lugs are maintained in contact and current is passed between them to melt the silver solder, without melting the silver, to join them. The silver lug 12 of each grid is welded thereto and is cranked so that the assembled lugs are parallel and close together. The silver solder is coated to a thickness of 0À0015 inch and the coated lugs are located in a slot in a silver-plated brass terminal post 13. Molybdenum or "Elkonite" (Registered Trade Mark) electrodes contact the post and pass current through the lugs to melt the solder excess of which flows into the recess in the terminal post. The silver support grids of zinc plates of an alkaline battery may be similarly interconnected.
Patent GB-1439039-A (GB)
Title: Copying machines
IPC: G03B27/46
Filed: 1973-09-13
Abstract: 1439039 Superimposed copying AGFAGEVAERT AG 13 Sept 1973 [13 Sept 1972] 43106/73 Heading G2A Standard information from a selected transparency and additional information from an opaque sheet are combined on a copy sheet (e.g. to produce a form with inserted data) by projection printing in which the sheet is illuminated through the transparency, any information on the sheet not illuminated through the transparency not being printed. Two sets of transparencies A 1  &c. (for top sheets) and A 2  &c. (for continuation sheets) may be arranged symmetrically about a blank area O and a desired transparency brought into illumination position, using pre-selection keys, by means of one  of two uni-directional drive motors, the other acting as a braked The number of copies of the desired transparency is also pre-selected.
Patent GB-1153452-A (GB)
Title: Improvements relating to Methods of Manufacturing Cold-Punchable Laminated Material
IPC: C08G8/00
Filed: 1966-09-27
Abstract: 1,153,452. Thermosetting resin impregnated laminates. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 Sept., 1966 [28 Sept., 1965], No. 43114/66. Heading B5N. A method of manufacturing a cold-punchable laminated material comprises the steps of impregnating sheets of fibrous material with an aqueous emulsion or solution of a phenolaldehyde resin, drying the impregnated sheets and partially curing the resin in the dried impregnated sheets, then forming a stack of a plurality of such impregnated sheets in which the resin was partially cured, compressing and heating the stack so that a single laminated body is formed and the resin hardened, wherein the phenol-aldehyde resin is manufactured from phenolfurfural and formaldehyde, wherein the molar ratio of phenol to total aldehyde used to constitute the resin is from 1 :1À1 to 1 1À5 wherein the molar ratio of phenol to furfural is from 1 : 0À6 to 1 : 0À9 and wherein the phenol is first treated with furfural in the presence of a basic catalyst. The basic catalyst may be an alkali metal carbonate and/or an alkaline earth metal hydroxide, the fibrous material may be kraft paper, the drying and partial curing may be effected in an oven and the compression may be between plates. In one example phenol, furfural and calcium hydroxide are heated and stirred together in a reaction vessel and a two layer distillate of water, phenol and furfural is given off. The reaction mixture is then cooled and formaline, and the phenol and furfural from the distillate added to the reaction mixture which is then boiled, to produce the desired impregnating resin. A solvent, e.g. stearamide, may be added to the resin either before adding an acid, e.g. sulphamic or sulphonilic acid, to reduce the pH, or after adding ammonia.
Patent GB-431414-A (GB)
Abstract: 431,414. Kitchen ranges. RASANEN, 1., 8, Folkskolegatan, Helsingfors, Finland. Feb. 12, 1934, No. 4588. [Class 126] A kitchen range comprises an oven 4 with a top 15 of mineral material formed of a mixture of sand, cement and clay or a similar refractory material, and a heating chamber 5 at a level below that of the fireplace. Air for combustion is supplied directly through the opening 10, and after heating by passing around one side and the bottom of the range and through a conduit 11 in the side of the fireplace. Heated air is also supplied from a channel around the firedoor opening, and air also passes through openings 18 in the top of the range. The flow of hot gases over and around the heating chamber 5 to the smoke flue 3 is controlled by a damper 14. The grid 19 in the oven may be of artificial stone with a metal plate as frame or bottom, and the top of the range may be covered by a loose heat-insulating plate. A boiler may be provided.
Patent GB-1190423-A (GB)
Title: Differential Pressure Compensator Control
IPC: F15B11/05
Filed: 1967-09-25
Abstract: 1,190,423. Fluid-pressure servomotor systems. WEATHERHEAD CO. Sept.25, 1967 [Feb. 2, 1967], No. 43435/67. Heading G3P. A variable displacement pump 10 supplies a motor 23 through control valve 17, and the higher of the two pressures in chambers 27, 28 is admitted via check valve 82 or 83 to line 81 to move piston 74 to the left to increase the load exerted by spring 62 on spool 42. The latter is responsive to pump outlet pressure via line 41 and controls the stroke-varying piston via line 53. The pump outlet pressure thus rises to a level determined by the load exerted by spring 62 which in turn is a function of the magnitude of load 26. Bore 73 is somewhat larger than bore 39 and a balance spring 77 may be fitted to ensure a fixed differential between lines 41, 81 which is a function of the ratio of the areas of bores 39, 73 and is independent of pump outlet pressure. When shoulder 75 prevents further leftward movement of piston 74, spool 42 prevents any further increase in pump outlet pressure by reducing displacement. In the modification of Fig. 2 (not shown), the pump supplies two motors (114, 128) through respective control valves (108, 122) and the motor pressures connect with the spacer between floating pistons (164, 166, 168) and plunger (159) so that the highest of these pressures controls the loading on spring (147) biasing spool (137) controlling the displacement-varying piston. In Fig.3, (not shown), pump (180) supplies single-acting motor (192) through valve (187) and the motor pressure acts via line (194) and passages 232, 233 of reducing valve (235) on spool land (207) to bias the latter against the pump outlet pressure. As valve (235) moves to the left at cut-off, piston (213) uncovers bleed outlet (236) and the ports (233) are obturated to equalise the flows to and from chamber (208). This arrangement provides abrupt cut-off. In Fig. 4, (not shown), reducing valve (296) controls the bias pressure in chamber (275) in response to the highest of four motor pressures, and relief valve (316) controls the maximum bias pressure. In Fig. 5 (not shown), the motor pressure is only communicated to chamber (371) to modify the spring-loading on spool (345) when the motor control valve is positioned to supply the motor.
Patent GB-1037508-A (GB)
Title: Process for preparing cyclohexanedial-1,4
IPC: C11B9/00
Filed: 1963-11-04
Abstract: Cyclohexanedial-1,4 is made by catalytic dehydrogenation of cyclohexane-1,4-dimethylol in the gaseous state at a temperature between 300 DEG  and 600 DEG  C. in the presence of oxygen or an oxygen-containing gas, e.g. air, and distilling the reaction mixture so obtained.  The reaction may be effected at pressures below 100 mm. Hg, for example below 10 mm. Hg.  Typical dehydrogenation catalysts may be used including copper, silver, zinc, brass alloys, Adkins catalysts based on copper-chromite with varying additions of zinc and/or nickel and/or barium, noble metals and oxides or compounds of metals of Groups V and VI of the Periodic System such as molybdenum, vanadium or titanium. Detailed examples are given.
Patent GB-1282371-A (GB)
Title: Coaxial circuit construction and method of making
IPC: H05K3/46
Filed: 1970-09-11
Abstract: 1282371 Printed circuit assemblies; coaxial cables BUNKER-RAMO CORP 11 Sept 1970 [18 Sept 1969] 43650/70 Headings H1A and H1R A coaxial circuit construction is made up of layers of copper or nickel 12, 16, 22, 24, 28, 33 and photo-polymer insulating material 14, 18, 26 arranged such that the layer 22 forms an elongated conductor encircled by and insulated from the conductive layers 12, &c. The plating of conductive layers and processing of insulating layers is accomplished layer by layer such that each level is flush. Feed-through layers 32, 36 are provided during processing for connection to components &c. The feed-through may be used to connect to a second conductor at a different level which may also be perpendicular to the first conductor.
Patent GB-1345357-A (GB)
Title: Thread tensioning device for sewing machines
IPC: D05B73/00
Filed: 1971-09-20
Abstract: 1345357 Sewing machines SINGER CO 20 Sept 1971 [25 Sept 1970] 43703/71 Heading DIG  In a thread tensioning device three discs 50 (Fig. 2) are supported on a hollow stud 40 and are pressed against a flange 43 on the stud by a washer 51 and a spring 57 and nut 56. In addition, to increase the tension further, a rod 54 (Fig. 3) passing through the stud has a head 55 which also presses against the washer 51. A head 114 on the other end of the rod is urged away from the discs by a lever 110, the other end of which is pressed by a spring 98 supported on a mandrel 96. The fulcrum is formed by a projection 120 on a slide member 121, the member and fulcrum being adjustable. When a thumb wheel 21 is rotated a crank 126 on it slides the member and the fulcrum along the lever 110, thus altering the force on the rod 54 and the thread tension. The range of adjustment is variable by adjusting the threaded mandrel 96 and hence the spring 98. The whole device is fixed inside the top cover 14 of a sewing machine (Fig. 4, not shown) except for the discs &c which are protected by two covers 68, 69. When the presser foot is raised a long rod 34 presses against a lever 136 which in turn presses a lever arm 137 against the lever 110 to reduce the thread tension.
Patent GB-955573-A (GB)
Title: Improvements in or relating to mounting panes and like panels in frames
IPC: E06B3/58
Filed: 1961-12-06
Abstract: 955,573. Glazing. REPCO RESEARCH PTY Ltd. Dec. 6, 1961 [Dec. 9, 1960], No. 43726/61. Heading E1R. An edge portion of a pane 19 or other panel is fixed in parallel relationship within the dihedral of a frame member 20, 21 of rightangled section by a mounting strip 22 of obtuse V-section, one arm of which is secured to, as by spot welding 25, or is integral with, (Fig. 3, not shown), one arm 20 of the dihedral, and a retaining strip 27 co-operable with the mounting strip and the other arm 21 of the dihedral, to form a parallel sided longitudinal cavity receiving the edge of the pane preferably covered by an insert resilient rubber U-shaped strip 27 the cavity being filled with putty &c, 30, whereby on setting of the putty &c. the strip 27 effects a tight-locking engagement with the mounting strip and the frame member to resist pressure differances on opposite sides of the pane. The arms 23, 24 of the mounting strip may be at right-angles to each other and joined by a curved portion (Fig. 2, not shown) which co-operates with a correspondingly curved end of the arm 28 of the retaining strip.
Patent GB-1206125-A (GB)
Title: Pattern more particularly for a textile tufting machine
Inventor: SHORROCK STANLEY
IPC: D05C15/26
Filed: 1967-09-26
Abstract: 1,206,125. Tufting-machines. S. SHORROCK. 23 Sept., 1968 [26 Sept., 1967], No. 43876/67. Heading D1G. A tufting machine pattern comprises a number of unit areas each corresponding to a single needle stroke each unit area being divided into three parts and each part having a binary coding system which may be in the form of perforations or transparent and opaque material thus providing eight alternative patterning signals per needle stroke which may be used to control the colours of the pattern. In operation the signals are fed to an integrating circuit which activates the thus selected needle the pattern having been 'read' by photocells and a light source.
Patent GB-1413348-A (GB)
Title: Self aligning cylinder
IPC: F01L7/02
Filed: 1973-09-19
Abstract: 1413348 Oscillating cylinder I C engines H DRUMMOND 6 Nov 1973 [19 Sept 1973] 43897/73 Heading F1B I.C. engine has the cylinder 1 supported by a pivot bearing 3 so that the cylinder is free to oscillate and the cylinder axis remains parallel to the connecting rod, which is of circular crosssection and runs in a sleeve bearing 8 at the inner end of the cylinder. The bearing 3 comprises a sleeve which passes through the cylinder head and has its end supported in bearings 11 in the cylinder block. An inner sleeve 5, which is driven by bevel gearing 4 from the crank-shaft, has ports 9 which co-operate with ports 10 in the outer sleeve to control the admission of combustible mixture and the exhaust of combustion products. Electrical  contacts 6 on the sleeves co-operate to control the operation of an ignition device.