baber/WOPTO huggingface dataset:
Patent GB-1502627-A (GB)
Title: Agricultural implement for working crops lying on the ground
IPC: A01D78/10
Filed: 1975-11-26
Abstract: 1502627 Agricultural implements for working crop on the ground PHILIP PEARCE & CO Ltd 26 Nov 1975 [26 Nov 1974] 48663/75 Headings AIF and A1P The tines 18 of each rotary rake head 14 are pivoted about upright axes so as to be pivotable outwardly against biassing means from a tangential inoperative position under the influence of centrifugal force when the rotary rake head 14 is rotated. Each tine pair 18, 18 is clamped to a shaft 17 pivoted in a boss 28 welded to a ring 16 of the rotary rake head 14, the shaft 17 being retained in the boss 28 by a head 29 acted on by the biassing means which is in the form of a spring 37. The head 29 is secured to the shaft 17 by a pin 30 which projects and may engage a stop 40 to define a tedding position for the tines; if the stop 40 is inverted, the tines trail for windrowing. The draft beam 12 is pivoted about a vertical axis to the draft frame 11, and with limited pivotal movement at 26 about a longitudinal axis to the transverse beam 13 supporting the rotary rake heads 14.
Patent GB-1008828-A (GB)
Title: Improvements in or relating to coating sheets
Inventor: SALISBURY JOHN
IPC: D21H23/30
Filed: 1962-12-27
Abstract: A wax blend for application to carton blanks by a curtain-coating device comprises 15% ethylene-vinyl acetate co-polymer, 20% micro wax and 65% paraffin wax and has a viscosity in the range 75 to 500 cps. at 230 DEG  to 280 DEG  F.
Patent GB-1291054-A (GB)
Title: Reciprocating steam engines
Inventor: LEWIS MORTIMER HARMAN
IPC: F01B11/00
Filed: 1968-10-15
Abstract: 1291054 Steam engine values WILSON & KYLE Ltd 15 Oct 1969 [15 Oct 1968] 48761/68 Heading F1M In a steam engine the piston 14 of which drives the piston or plunger 18 of a pump, the admission of steam is by a valve (not shown) having a direct lift valve member the opening and closing movements of which are effected one electromagnetically and the other by spring action and a separate exhaust valve 60 is arranged to be opened and closed by the steam piston. Electrical contacts 84 for operating the steam admission valve may be actuated by the engine itself or the engine may be arranged as a slave to a repetitive contact device in the electrical circuit of a solenoid of the steam admission valve.
Patent GB-1124269-A (GB)
Title: Radio-active power source
IPC: G21H1/02
Filed: 1965-11-19
Abstract: 1,124,269. Utilizing energy of radiations. UNITED STATES OF AMERICA ARMY, SECRETARY OF. 19 Nov., 1965 [19 Nov., 1964], No. 49272/65. Heading G6P. [Also in Division H1] D.C. electric power is provided by a radioactive source through the charging of an associated capacitor by the charged particle emission. To stabilize the capacitor output potential, a gas discharge cell which is coupled to the source, is designed to have a Geiger breakdown under cosmic radiation. Strontium 90 is employed as the radio-active source providing beta-emission and Yttrium 90 which yields a further beta-emission. Tritium may also be used. The beta-emission from source 12 is collected at the metal closure 3 and a potential developed between metal end 1 and the conducting rod 6 across the dielectric 19. An external circuit may be connected to the core 1 and the rod 6, connections being made to 1 and the contact 16 mounted on the flexible disc 15. Depression of disc 15 completes the circuit by bringing 6 and 16 into contact. The chamber 14 contains a dry gas which will break down when the potential between 7 and 17 reaches a predetermined value.
Patent GB-1161246-A (GB)
Title: Graft Copolymer-Chlorinated Polythene Blends
IPC: C08L25/00
Filed: 1966-11-03
Abstract: 1,161,246. Graft polymer-chlorinated polyethylene blends. BORG-WARNER CORP. 3 Nov., 1966 [8 Nov., 1965], No. 49272/66. Heading C3G. A mechanical blend consists of (a) 95 to 20 parts by weight of a graft polymer obtained by polymerizing 30 to 70% by weight of a monovinyl aromatic hydrocarbon and 10 to 40% of an acrylic acid nitrile in the presence of 10 to 60% of a conjugated aliphatic diolefin homopolymer or a copolymer of such a diolefin and a monovinyl aromatic hydrocarbon and (b) 5 to 80 parts of a chlorinated polyethylene containing 20 to 55% by weight of chlorine. The blends may also include an acid acceptor e.g. a lead compound or a metal oxide, a lubricant and other flame retardants e.g. Sb 2 O 5 . In Examples 1 to 15 and 28 a graft polymer (A) of polybutadiene grafted with acrylonitrile and styrene is blended with chlorinated polyethylene, dibutyl tin maleate and a polyoxyalkylene derivative of propylene glycol. The blends of Examples 16 to 26, 29 and 30 also include a graft polymer (B) of polybutadiene grafted with acrylonitrile, styrene and α-methyl styrene. In Example 27 the only graft polymer in the blend is graft polymer (B).
Patent GB-1155108-A (GB)
Title: Set Up Device for a Ten Key Adding Or Like Machine
IPC: G06C7/10
Filed: 1966-11-04
Abstract: 1,155,108. Calculating apparatus. ING. C. OLIVETTI & C., S.p.A. 4 Nov., 1966 [18 Nov., 1965], No. 49444/66. Heading G4B. A ten-key calculating machine including a pin carriage 4, slides 17 for displacing the pins 6, 7, and key-operated members 14 for moving the slides to their operative positions, is characterized in that the driving connection between the members 14 and slides 17 is disengaged when the slides reach their operative positions whereby the slides are returned to their rest positions independently of the members 14. Each member 14 is pivoted at 15 and includes a lug 33 engaging an aperture in the associated slide 17, a spring 16 being secured between the member 14 and its slide 17. As the slide approaches its operative position, its rear end 39 engages a stop 18 whereby the slide is cammed downwardly to disengage the lug 33 from the aperture. The slide is returned to its rest position by spring 16 even though the key remains depressed. Each slide 17 has a shoulder 22 engaging a universal slide 24. Operation of any slide 17 reciprocates the slide 24 to displace a column stop 12 cooperating with an abutment 13. The slide 24 includes an arm 28 engaging a rack 29 on the pin carriage to prevent a full step movement of the pin carriage until after the slides 17 and 24 have been moved clear of the pin carriage.
Patent GB-1024860-A (GB)
Title: Improvements in or relating to churn washing machines
Inventor: HARGREAVES GEORGE
IPC: B08B9/08
Filed: 1963-12-13
Abstract: 1,024,860. Applying lids to containers. WRIGHT HARGREAVES ENGINEERING CO. Ltd. Dec. 14, 1964 [Dec. 13, 1963], No. 49466/63. Heading B8T. A churn-washing machine has a lid replacement arrangement comprising a fluid cylinder and ram device 66, 64 operatively connected to stop means 60 for lids travelling towards a lid replacement station, and control means 50, 52 (see below) for the ram and cylinder device adapted to be operated in synchronism with a churn delivery mechanism, whereby a lid is only released by the stop means at a time in the cycle of the machine when a churn 26 is held stationary at the lid replacement station. Inverted churns from a washing machine pass from a chain conveyer 14 to a turn-over mechanism 10 described in Specification 770,153, from where they pass base down, via rest 18 and rollers 22, to the lid replacement station. A churn locating and positioning mechanism 28 grips each churn and holds it at the replacement station while a lid is delivered to the mouth of the churn. This locating mechanism comprises a pneumatic cylinder 30 with an upwardly directed ram 32, Fig. 2 (not shown) connected to a pair of outwardly directed toggle links 34, 36 pivoted on levers 38, 40 each carrying a pair of gripping rollers 48. The cylinder 30 is controlled by a pilot valve 50 operated by a cam 52 on the shaft of the conveyer 14 such that each time the turn-over mechanism operates, the ram 32 is retracted to swing the levers 38, 40 inwardly so that the rollers 48 grip the churn. The lids are located on a lid slide 54 carrying a lid stop rod 60 fixed on a shaft 56 whose rotation is controlled by a lever 62 connected to the ram 64 of the pneumatic cylinder 66. The cylinder 66 is controlled by the pilot valve 50 in synchronism with the cylinder 30 such that its ram 64 is retracted to lift the stop rod 60 to allow a lid to slide to the churn when the latter is gripped by the rollers 48.
Patent GB-1281909-A (GB)
Title: Child-proofing collar for containers having screw-on or snap-on caps
Inventor: ESPOSITO VINCENT JOHN JR
IPC: B65D50/06
Filed: 1969-10-09
Abstract: 1281909 Caps for bottles V J ESPOSITO 9 Oct 1969 [9 Oct 1968] 49634/69 Heading B8T A substantially tubular collar 10 is symmetrical about a central vertical axis. At its lower end 12 it has inwardly projecting flanges 13a, 13b defining an annular groove which can be snapped over a rib R on a bottle B. When the rib R is engaged in the groove the wall portion 11 of the collar 10 prevents access to the cap C. To open the cap, the collar is pushed downward off the rib on to the shoulder of the bottle, Fig. 4 (not shown), allowing the cap to be unscrewed. An annular flange 11a may be provided as shown to strengthen the collar or the flange may extend from a part midway along the collar, Fig. 5 (not shown). Radial slots (14), Fig. 2 (not shown), may be provided in the lower end 12 of the collar.
Patent GB-1392569-A (GB)
Title: Composite structures
IPC: B32B17/10
Filed: 1972-10-27
Abstract: 1392569 Laminates E I DU PONT DE NEMOURS & CO 27 Oct 1972 [24 Nov 1971] 49702/72 Heading B5N [Also in Divisions Dl and F2] A composite structure comprises a fabric knitted from glass fibre yarn and at least one monofilament of a melt fabricable tetrafluoroethylene copolymer, said fabric being partially embedded in a sheet of a melt-fabricable tetrafluoroethylene copolymer. The composite structure may be made by stacking the fabric and the sheet on top of one another and applying sufficient heat and pressure to cause the surface of the fabric in contact with the sheet to become embedded therein, lamination preferably being effected in a heated press. The copolymer is derived from tetrafluoroethylene and at least one comonomer, e.g. hexafluoropropylene, perfluoropropylvinylether, ethylvinylether or ethylene. The monofilament may be essentially separate from the glass fibres or intertwined therewith before or during knitting. The exposed loops of yarn of the fabric may serve as an anchor for a layer of castable material, e.g. an epoxy or polyester resin encapsulating reinforcing material such as cloth or fibre and preferably a glass fibre mat or rovings, a plurality of reinforcement layers being preferably applied. The composite structure may be formed into a tube or dished head for a chemical process vessel. A dished head is made by positioning a sheet of the composite structure 2 fabric face up on a frame 52 located in an oven 50 and overlying a male mould 54 and applying heat to cause the sheet to assume the shape shown by dashed line 56. The frame is then lowered to the position shown in Fig. 17 and vacuum applied by lines 58, the reinforcing material backing being applied after moulding.
Patent GB-1395369-A (GB)
Title: Melt-spun continuous filaments
IPC: C08L61/04
Filed: 1972-10-27
Abstract: 1395369 Novolac resin fibres NIPPON KYNOL Inc 27 Oct 1972 [5 Nov 1971] 49706/72 Heading B5B [Also in Division C3] Flame resistant continuous filaments are prepared by melt-spinning a mixture of a novolac resin and an aliphatic polyamide containing 0À1 to 5% by weight of the polyamide, curing the filaments with a curing agent in the presence of an acid catalyst and optionally stretching the filaments before and/or after curing. Preferred curing agents are formaldehyde and paraformaldehyde in the presence of a mineral or carboxylic acid. Curing is preferably effected at 5‹ to 150‹ F. and stretching at a draw ratio of up to 2À5. In examples novolac resins are prepared by reacting phenol and a mixture of phenol and p-cresol with formalin in the presence of oxalic acid. Filaments are then melt spun from mixtures of the phenol novolac with nylon 6 and nylon-11, 12 and the phenol/cresol novolac with nylon 66, and cured in aqueous or gaseous HCl/HCOH mixtures.
Patent GB-1324539-A (GB)
Title: Apparatus for expelling evaporable components from a flowing  stream of material
IPC: B01D1/00
Filed: 1970-10-22
Abstract: 1324539 Evaporators ALFA LAVAL AB 22 Oct 1970 [23 Oct 1969] 50314/70 Heading B1B [Also in Division C5] Water is evaporated from aqueous soap by passing it via inlet 11 through alternate spaces 9 of a plate-type heat-exchanger wherein the plates 8 are divided into groups each provided with its own adjustable supply of heating steam to spaces 10, whereby the temperature of successive groups of plates diminishes in the direction of flow through the heat-exchanger. A mixture of concentrated soap and watervapour is discharged through outlet 12. The spaces 10 are fed with steam from pipelines 13 to 16, each of which has a manometer 17 and a control valve 18. The steam pressure in the corresponding groups of spaces 10 is adjusted to valves diminishing from left to right. Uncondensed steam is discharged from spaces 10 through pipelines 19 to 22, each provided with a condensate trap 23. Also described is an evaporator comprising a pipeline having a series of U-shaped bends, each straight section of the pipeline being surrounded by a heating jacket with its own supply of heating steam. The evaporation of rubber latex, milk and fruit juice is also referred to. In the case of fruit juice, the concentrated juice is allowed to flow out of the evaporator into a liquid/vapour separation vessel maintained under vacuum.
Patent GB-1078320-A (GB)
Title: Converter
IPC: H03K7/06
Filed: 1965-11-26
Abstract: 1,078,320. D.C.-frequency converter. HUGHES AIRCRAFT CO. Nov. 26, 1965 [Dec. 30, 1964], No. 50382/65. Headings H3A and H3R. An arrangement for converting a D.C. input signal to an output signal having a frequency related to the value of the input signal comprises a voltage controlled oscillator V.C.O., an input amplifier A1 and a feedback path including dividing and switching means F.D.C. and S.D. which act as a frequency discriminator to provide a negative feedback voltage for application to the input of the amplifier. The oscillator supplies an output at a predetermined frequency when no input signal is applied and an output which varies in frequency above or below this value depending on the polarity of the input signal and by an amount which is a function of the amplitude of the signal. The output of the oscillator is applied to a first divider FD1 of the counter type and when this registers its maximum count a signal is applied to the enabling input K2 of a bi-stable circuit FSD so that the next positive half cycle of the output of crystal oscillator XO applied to terminal K1 switches the circuit to the first of its stable states. In this state an output appears on terminal S5 which (a) via switching device O.S. biases transistor SW1 on so that positive reference potential is applied to point E1, (b) applies an enabling input to terminal J4 of bi-stable circuit FSD and (c) applies an opening signal to gated amplifier A.G. The output of the crystal oscillator is now applied to divider FD2 and when this reaches a maximum count, which occurs at a fixed time after the bi-stable circuit was switched to its first state, a signal is applied to terminal J3 of the bi-stable circuit which switches the circuit to its second state. The change in potentials on terminals S5 and S6 now, via switching circuit OS, biases transistor SW2 on and SW1 off so that a negative reference potential is applied to terminal E1 The operation repeats when divider FD1, which like divider FD2 is returned to zero when it reaches its maximum count, again registers its maximum count. With no input to the converter, the duration of the fixed period determined by the crystal oscillator frequency, when positive potential is applied to terminal E1 is arranged to be equal to the period determined by the frequency of VCO when negative potential is applied to terminal E1, Fig. 2a, so that the average D.C. signal applied from terminal E1 to the input of the amplifier is zero. With an input to the converter the frequency of the VCO increases above or falls below the predetermined frequency associated with zero input hence the negative portions of the waveform at terminal E1 decrease, Fig. 2b, or increase, Fig. 2c, in duration providing an average D.C. voltage which is applied as negative feedback to the input of amplifier A1.
Patent GB-1446214-A (GB)
Title: Fluid operated drive arrangement
IPC: F01C1/02
Filed: 1973-10-30
Abstract: 1446214 Reciprocating motors INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG ZURICH 30 Oct 1973 [1 Nov 1972] 50405/73 Headings F1A and F1M A hydraulic or gaseous pressure motor with a rotary or oscillatory output comprises an eccentric 3 drivingly engaged by at least one flexible bladder 5, 6, 7 which is alternately connected to pressure supply and exhaust. In the rotary output motor shown, the bladders 5, 6, 7 act between a casing 1 and a member 4 surrounding the rotary eccentric 3 and prevented from rotating by an arm (92), Fig. 3 (not shown), or an Oldham-type coupling Fig. 4 (not shown). The eccentric 3 has supply and exhaust ports sequentially communicating with bladder connections 9; the exhaust port may open into the motor casing,Fig. 2 (not shown). In Figs. 5 and 6 (not shown), the bladders act on the eccentric via plates pivoted in a casing formed by segments clamped together. In Figs. 7 and 8 (not shown), an oscillatory output motor has two bladders driving the eccentric via either a member 4 as shown, or via pivoted plates. For oscillatory movement, one bladder and a return spring alternatively may be used.
Patent GB-1347376-A (GB)
Title: Electrophotographic process using electrophotographic photosensitive material
IPC: C08G18/62
Filed: 1971-10-29
Abstract: 1347376 Electro-photographic apparatus FUJI PHOTO FILM CO Ltd 29 Oct 1971 [31 Oct 19701 50522/71 Heading G2H In an electro-photographic process using an electro-photographic member including a dye sensitized inorganic photo-conductive material in a resin binder which is cross-linked by a polyisocyanate, the dye is bleached after development of the member using a solution comprising a solvent for the dye, an alkali metal hydroxide or an organic acid and an organic solvent capable of swelling the binder which solvent may be the same as or different from the solvent for the dye and then the member is washed with a solvent for the dye and/or the solvent capable of swelling the binder. The sensitizing dye may be a cyanine, hemicyanine, merocyanine, hemioxanol, xanthene or J-aggregate thereof. The metal hydroxide may be NaOH or KOH and the organic acid may be oxalic or maleic acid. The solvents used may be a mixture of methanol with at least one of ethanol, acetone, n-butyl acetate and water but other solvents are specified. The bleaching treatment can be effected at elevated temperature. A surface active agent may be included in the bleaching solution.
Patent GB-1483869-A (GB)
Title: Closure stopper assembly for bottles under vacuum
IPC: A61M1/00
Filed: 1975-12-12
Abstract: 1483869 Valved closure M LAMIDEY 12 Dec 1975 [17 Dec 1974] 51049/75 Heading B8T A closure for a bottle under vacuum, e.g. for surgical or pharmaceutical use, comprises a flexible material, e.g. rubber or elastomer stopper 1 passing freely into a neck of a bottle and constituting a clapper-valve for air in the bottle, a projecting portion 2a of the stopper contacting the rim of the bottle and being provided with at least one deformable weakened zone 5 permitting air to pass under pressure from the bottle and reclosing in a fluid-tight manner on the bottle rim, the stopper being retained on the neck by a clamping ring 4 which does not engage the weakened zone 5. A slot 5a may be provided in the stopper to aid flow of air from the bottle. The ring 4 may be screw-threaded or crimped on to the bottle neck. In a further embodiment, a tube for connection to suction apparatus is provided passing through the stopper 1, and pointers are provided to indicate the state of vacuum in the bottle.
Patent GB-1033050-A (GB)
Title: Horn switch assembly
Inventor: KNIGHT MAURICE EDWARD
IPC: B62D1/04
Filed: 1964-12-16
Abstract: 1,033,050. Retractive switches. FORD MOTOR CO. Ltd. Dec.16, 1964, No. 51123/64. Heading H2B. A member 3 mounted on a vehicle steering wheel (not shown) provides an annular fulcrum 3b for a central ring 2 integral with a horn ring 1. An insulating annulus 4 is interposed as shown. The ring 2 is secured to a flange 8 of member 3 by means of bolts 7, screws 10 and an annular disc spring 9. An annular contact 5 is carried by insulating collars 6 on bolts 7. When ring 1 is lifted or depressed at any point the ring 2 pivots about the annular fulcrum 3b and contact 5 closes a horn circuit by engaging a flange 3a on member 3 at a point diametrically opposite to the pivot point, thereby requiring less movement of ring 1 than would be required if the contact point were near the pivot point.
Patent GB-1093100-A (GB)
Title: Liquid filter assemblies
Inventor: BUCKMAN KENNETH ERNEST
IPC: D06F43/08
Filed: 1965-12-02
Abstract: 1,093,100. Liquid filters. GENERAL MOTORS Ltd. Nov. 10, 1966 [Dec. 2, 1965], No. 51160/65. Heading BID. A filter assembly for dry cleaning liquids comprises a coaxial array of perforate tubes 3, 1, 2, an inner layer 6 of woven or knitted nylon cloth secured by ties 27 round tube 3, an annular mass of activated carbon granules 5 between layer 6 and tube 1 and a pleated resinimpregnated paper element 4 between tubes 1, 2, the assembly being demountable to facilitate replacement of all three elements. In Fig. 1 central tube 3 is fixed to lower end plate 8 and upper end plate 7 is attached to the other end 17-19 of tube 3 by a clamping nut 20 with a handle 21. The tightening of nut 20 urges gasket 24 against the ends of the pleats of element 4, which may be individually sealed or may be sealed by a wider gasket 24 than is shown, and urges felt pad 31 to compress the granules 5. The inner folds of the pleats in element 4 may be adhered to a strip of tape 23. In Fig. 2 (not shown) tube 3 is demountable from lower end plate (38), in Fig. 3 (not shown) upper end plate (47) is held in place by a cap (48) screwed on to tube 1. In Figs. 4, 5 (not shown) the upper plate 7 is attached to outer tube 2 by spring clips (60) on to bolts (70), welded to tube 1, by nuts 71. In Fig. 8 (not shown) the pad 31 is not slidable as in Fig. 1 but the inner part of plate 7 is deformable when collar (110) is screwed down to permit some movement. The end plates of Figs. 1 to 5, 8 are of pressed sheet metal, but end plates (77, 88) in Fig. 6 are castings and respectively clamped and screwed to bushes (94) on the ends of tube 3. Fig. 7 (not shown) illustrates an annular funnel (100) for filling carbon into the space between tubes 1, 3 while holding them spaced.