baber/WOPTO huggingface dataset:
Patent GB-1490804-A (GB)
Title: Process for producing a latex of chloroprene polymer
IPC: C08F236/18
Filed: 1975-11-04
Abstract: 1490804 Production of chloroprene polymers TOYO SODA MFG CO Ltd 4 Nov 1975 [6 Nov 1974] 45817/75 Heading C3P A process for producing a latex of chloroprene polymer comprises radical polymerizing chloroprene or a mixture of chloroprene and one or more comonomers in an aqueous medium in the presence of 0À2-10 wt. per cent based on the total weight of the monomers of a water-soluble compound having the Formula (I) wherein R is H or alkyl; X is H, halogen, hydroxy or alkyl; and Y is H, alkyl, alkali metal or quaternary ammonium. Typical sulphonic acids and salts thereof are p-styrene, sulphonic acid and sodium, potassium or quaternary ammonium salts thereof, sodium α- methyl - p - styrenesulphonate and o - chlorop-styrenesulphonic acid. In a preferred process the polymerization is conducted by radical polymerizing 0À5-50 wt. per cent of the chloroprene or the mixture of chloroprene and comonomer(s) in an aqueous medium in the presence of the compound of Formula (I) and thereafter further polymerizing the remainder of the chloroprene or the mixture in the presence of the reaction mixture of the initial polymerization. The specific examples describe the polymerization of: chloroprene in the presence of sodium styrene sulphonate, ammonium styrene sulphonate, sodium o-chlorostyrene sulponate and sodium α-methylstyrene sulphonate (1-8); and mixtures of chloroprene and 2,3-dichlorobutadiene, styrene or methyl methacrylate is the presence of sodium styrene sulphonate (9-12).
Patent GB-1197587-A (GB)
Title: Improvements in Barrier Membranes
IPC: H01M50/443
Filed: 1967-10-06
Abstract: 1,197,587. Electrochemical cells with selectively ion-permeable membranes. GENERAL ELECTRIC CO. 6 Oct., 1967 [27 Oct., 1966], No. 45833/67. Heading H1B. [Also in Division B1] An electrochemical cell comprises an anolyte reservoir and a catholyte reservoir separated by a barrier which comprises (i) particles havng through pores of an average diameter of 500 angstroms or less so as to reduce to a minimum the migration therethrough of dissolved chlorine, bromine or iodine or a polyhalide ion derived therefrom, while permitting monohalide ion passage, and (ii) a binder of a material inert to the contents of the reservoirs, present in an amount sufficient to join the particles at their points of tangency and fill the interstices without preventing monohalide ion migration. The particles (i) are preferably "macroreticular" cation exchange resins of a size passing through a 50-mesh (U.S. standard) screen. Preferred binders (ii) are hydrocarbon and halocarhon polymers. In examples, barriers are prepared from crushed beads of a styrene/divinyl benzene copolymer in sulphonated (Li salt) or unmodified form, having pore diameters of various sizes from 27 to 400 angstroms, bonded with polychlorotrifluoroethylene or polyvinylidene fluoride resin powder, by moulding the mixed powders at 240 C. and 15,000 p.s.i. or 165 C. and 22,500 p.s.i. respectively. They are used to separate catholyte and anolyte in rechargeable cells using an anode of Li plated on to a Pt or Ag-plated Ni screen, a porous carbon cathode, 1 : 2-propylene carbonate or gammabutyrolactone containing LiBr and/or LiClO 4  as electrolyte and having Br 2  or I 2  dissolved in the catholyte.
Patent GB-1029570-A (GB)
Title: Improvements in or relating to methods of forming protective coatings
IPC: C09D127/06
Filed: 1962-12-05
Abstract: Parts of buildings (e.g. floors, stairs and window sills) and sanitary ware (e.g. baths, washhand basins and water closets) are given a temporary protective coating by spreading (e.g. by spatula or trowel) thereon a composition comprising 1 part by weight of masticated rubber, 5 to 6 parts by weight of benzine-containing solvent and 4 to 5 parts by weight of filler, and allowing the coating to dry by evaporation of the solvent. The coated surface may have applied thereto a flexible layer and another layer of the said coating.  The solvent may also comprise white spirit and tetrachloroethylene.  The fillers specified are chalk, kaolin, kreselguhr, silitine, bentonite, soot, wood powder, ground cork, sawdust, cellulose material, liquin, asbestos and textile wast.  The flexible layer may be woven jute, coarse meshed woven material of natural or artificial fibres, perforated paper sheet, punctured plastics or metal foil, or wire netting.
Patent GB-1166464-A (GB)
Title: Xerographic Development
IPC: G03G15/08
Filed: 1966-10-14
Abstract: 1,166,464. Electro-photographic development. RANK XEROX Ltd. Oct. 14, 1966, No. 46097/66. Heading G2H. Latent electrostatic images on a drum 2 are developed by cascading a developer powder consisting of a toner and carrier through a chute 1 onto the drum, the chute being electrically conducting and having applied thereto a potential which is opposite to that of the electrostatic latent images and is of such magnitude as to reduce the background density of the developed image. An electrode 20 also at a potential opposite to that of the image may be positioned adjacent the area of the drum to which developer is applied.
Patent GB-1170421-A (GB)
Title: Improved Tape Transport
IPC: G11B15/67
Filed: 1966-10-17
Abstract: 1,170,421. Tape transport. DARTEX Inc. 17 Oct., 1966 [24 Oct., 1965], No. 46367/66. Heading G5R. In a tape transport arrangement mounted on a base 10, threading of the tape is facilitated by a slot 24 in a guide panel 12 which defines the tape path between a feed spool 18 and a take-up member 22 formed with pins 72, 74 to allow edgewise access of the tape. With the end portion of the tape positioned across the take-up member between the pins, the tape is automatically secured to the member when it and the tape are driven. The arrangement includes buffer rollers 28, 42 mounted on spring-loaded arms 44, 46 and a pressure roller 38 which automatically moves the tape into contact with the capstan 36 when a cover 14 is lowered, and is moved away from the capstan automatically or manually, when the cover is raised. Means including an expandable washer or like arrangement are provided for quickly securing the feed spool.
Patent GB-1241185-A (GB)
Title: A coloured printing plate
IPC: C08K3/26
Filed: 1968-09-30
Abstract: 1,241,185. P.V.C. printing plate. NORSK HYDRO ELEKTRISK KVAELSTOFAKTIESELSKAB. 30 Sept., 1968 [3 Oct., 1967], No. 46382/68. Heading C3P. A coloured printing plate comprises a polymer or copolymer of vinyl chloride and 4-200 p.h.r. of an inert filler having an average grain size of not more than 0.02 mm. This may be surface treated calcium carbonate or dolomite.
Patent GB-1083258-A (GB)
Title: Paper coating process and product
IPC: D21H17/00
Filed: 1964-11-16
Abstract: A coated supercalendered printing paper having high resistance to blistering during drying of heat-set inks applied thereto, is produced by applying to a paper rawstock a topcoating comprising at least 25% by weight of non-packing pigments of rhombic or needle-like structure randomly oriented in the coating to produce a porous coating and an adhesive for the pigments, drying the coating to a moisture content below 6%, and supercalendering the dried coated paper with as little densification of the paper as possible.  The pigments may be calcium carbonate, satin white, attapulgite clay, hydrated lime, zinc oxide, or mixtures thereof. The coating may be applied to the paper rawstock by means of a flexible blade coater. Prior to the application of the top-coating, the paper rawstock may be coated with a base coat containing at least 25% by weight of a non-packing pigment of rhombic or needle-like structure randomly oriented in the coating and adhesive for the pigment, and the base coat dried, or the paper rawstock may be tubsized with starch and dried.  The base coat may be applied by means of a roll or flexible blade coater.
Patent GB-1026677-A (GB)
Title: Improved display system
Inventor: ELLIOTT ERIC JOHN
IPC: G09F9/40
Filed: 1963-11-26
Abstract: 1,026,677. Digital display arrangements. COUNTING INSTRUMENTS Ltd. Feb. 16, 1965 [Nov. 26, 1963], No. 46589/63. Heading G4H. A digital display unit comprises a co-ordinate array of lamps 6 each associated with a different digit and a similar array of lens systems conveying so as to project the digit on to a common screen 4. There are four lenses in each system the lenses being arranged in planar arrays 8, 10, 12 and 14. The digits may be images on a film placed between lens groups 12 and 14 or they may be painted on an appropriate one of the lenses in each system.
Patent GB-1446049-A (GB)
Title: Container sealing devices
IPC: B67B3/20
Filed: 1973-10-08
Abstract: 1446049 Socket spanners ALBERT OBRIST & CO 8 Oct 1973 [9 Oct 1972] 46802/73 Heading B3N [Also in Division B8] A device for sealing a container 5 by means of a screw-cap 3 comprises a rotatable tool 1 having engaging elements co-operating with a threaded portion 8 of the cap 3 during screwing of the cap, and engaging elements co-operating with elements on a safety ring 12 of the cap at least during radial spreading of the ring 12 over a projection 19 on the container which is caused by screwing. The cap 3 comprises a bottom 6 with depending jacket portion 8 having an internal thread 9 engaging a thread on the container. Depending from the jacket portion 8, and attached thereto by a weakened frangible portion 11 there is a safety ring 12 including an internal flexible nose 14 which engages a projection on the container. The external surfaces of the jacket portion 8 and the safety ring 12 are milled at 10 and 13 to provide engaging elements. The internal surfaces of a recess 2 in the tool 1 are also milled at 22 and 23 to provide co-operating engaging elements. A sealing element 7 depends from the bottom 6 of the cap and engages in the neck 4 of the container 5. In operation, the milled portion 22 engages the milled portion 10 of the jacket 8 to screw the cap on to the container. As the cap is screwed down the nose 14 is pushed radially outward over the projection on the container and the milled portions 23 and 13 co-operate to rotate the ring 12 with the jacket portion 8 and thereby prevent strain on the frangible portion 11. During unscrewing the ring 12 is prevented from rotating by co-operating projections and recesses on the inner surface of the ring and the container respectively.
Patent GB-1065328-A (GB)
Title: Improvements in or relating to detonators
IPC: F42C19/10
Filed: 1963-11-29
Abstract: 1,065,328. Detonators. DYNAMIT NOBEL A.G. Nov. 29, 1963 [Nov. 29, 1962], No. 47337/63. Heading F3A. A detonator comprises a relatively thickwalled capsule having a stepped bore containing a charge, and a striker pin which enters a wider part of the bore to strike the charge. A turned or moulded thick-walled capsule (1) which has a bore (5) merging via a tapered step (6) into a narrower bore (7), contains a charge (2) retained by a thin foil (3). A pin (4), of diameter only slightly less than that of the narrower bore (7), is forced through the foil (3) to ignite the charge and substantially close the inner end of the narrower bore (7) so that the detonation flash passes through the open end (7a) to ignite the main charge of a projectile. In a described embodiment the pin has a diameter considerably less than the narrower bore and is fitted with an annular collar which seats on the step during detonation. Another embodiment has a larger diameter bore at each end connected by a narrower bore by way of two tapered steps, either one of the larger diameter ends being suitable to receive the pin.
Patent GB-1161563-A (GB)
Title: Electric Discriminator Circuits
IPC: G06G7/14
Filed: 1966-10-21
Abstract: 1,161,563. Pulse discriminator circuits. JUNKERS FLUGZEUGUND MOTORENWERKE A.G. 21 Oct., 1966 [3 Dec., 1965], No. 47390/66. Heading H3T. A switching circuit comprises a pair of complementary transistor T1, T2 with their emitters connected across a constant current source 4 and their collectors connected to one electrode of a capacitor C. If S 0  is opened by a gating signal, capacitor C will charge in one sense through transistor T 1  when switch S 1  is open, and in the other sense through transistor T 2  when switch S 2  is open. The resultant charge on the capacitor C will depend on the relative duration of the time that S 1  and S 2  are open. The switches may be transistors. In a modification, Figs. 2, 3 (not shown), the switches S 1 , S 2  are omitted and a push-pull signal is applied between points 2, 3. The charge on the capacitor then depends on the integral of the signal, during the time S 0  is open.
Patent GB-1212619-A (GB)
Title: Antibacklash gear
IPC: F16H55/18
Filed: 1968-10-08
Abstract: 1,212,619. Gear cutting. SINGER CO. 8 Oct., 1968 [30 Oct., 1967], No. 47614/68. Heading B3K. [Also in Division F2] An antibacklash gear 10<SP>11</SP> or rack (10<SP>111</SP>), Fig. 6 (not shown), is formed from a blank, e.g. of acetal resin plastics, including a resilient web 12<SP>1</SP> and a frusto-conical rim 16<SP>11</SP>, by distorting the web out of its normal plane and cutting the teeth in this distorted position. As shown, the web is mounted on an arbor 34 against a deflection plate 36 by a locking nut 46. The nut is tightened to deflect the rim 1611 into a position parallel to the web axis. A conventional hob 50 cuts the teeth and the web is released. In  use with conventional gears, the web and teeth are again distorted by the gears to mesh tightly. The web may be formed with an integral hub, Fig. 2 (not shown), or may be mounted on a hub (24), Fig. 1 (not shown), by a pin (25) passing through the hub and web, the gear being mounted on a shaft by a lock nut (32) on a split extension (28) of the hub. Spur, helical or worm-wheel gears may be formed by this method.
Patent GB-1099039-A (GB)
Title: Improvements in or relating to shell-type armatures and method of making such armatures
IPC: H02K3/00
Filed: 1965-11-10
Abstract: 1,099,039. Making armatures. GENERAL ELECTRIC CO. Nov. 10, 1965 [Nov. 12, 1964], No. 47687/68. Heading B3A. [Also in Divisions B5 and H2] A coreless armature is made by arranging the conductors 25 to have all coil sides 32 in sideby-side relationship in a single layer around a cylindrical removable moulding core 102. then encapsulating the armature winding with a liquid casting resinous material 24 and after hardening the resin removing the moulding core. The commutator 22 is also bonded to the encapsulated winding by the resin adhering to an annular aluminium ring 52 which may be integral with or attached to the commutator support 46, as shown, so as to support the armature winding for rotation with a shaft 15. A layer of resin impregnated glass cloth 75 may be provided at the inner surface of the armature winding during assembly. The conductors may be bound with insulating tapes (74), Fig. 2 (not shown), before or after encapsulation to reinforce the armature against centrifugal forces. The conductors are formed with bands, so that they may overlap each other at their ends 60, 61. During assembly groups of conductors are strung to a jig 200 by ties 205 which are removed after the moulding core 102 has been assembled within the conductor arrangement. The aperture may be used in D.C. motors or generators having a fixed core and a permanent or electromagnetic field.
Patent GB-1049448-A (GB)
Title: A method of preparing 1-methyl substituted 3-ketoandrostane compounds
Inventor: PELCO BOHUMIL
IPC: C07J75/00
Filed: 1963-12-04
Abstract: The invention comprises a process for preparing 1a -methyl-3-keto-androstanes by reaction of a 3-keto-androst-1-ene with a methyl magnesium halide in an inert organic solvent and in the presence of a catalyst facilitating addition of the Grignard reagent, at temperatures of from 0 DEG  C. to the boiling temperature of the reaction mixture.  Catalysts specified are cuprous chloride and cuprous bromide.  17-Keto starting materials may be simultaneously converted to 17a -methyl-17b -hydroxy compounds.  Reference has been directed by the Comptroller to Specification 977,082.
Patent GB-1075828-A (GB)
Title: Clipping apparatus for applying a u-shaped wire clip to the gathered end of a casing, bag or the like
IPC: B65B13/34
Filed: 1964-11-26
Abstract: 1,075,828. Sealing the necks of bags and tubes by deformable clips. RHEEM MANUFACTURING CO. Nov. 26, 1964 [Sept. 11, 1964], No. 48145/64. Heading B8C. A clip (Fig. 1) is deformed about the neck of a bag or of a tube (Fig. 5, not shown) by means of a punch member 7 which contacts the crown 3 of the clip at spaced apart pressure points 13, 14 and a die 18 which has two parallel grooves (19) and (20) (Fig. 2, not shown): the punch 7 has a groove 8 which allows the crown 3 of the clip to bow outwardly as the clip is deformed. The width w of the clip may be from 60 to 70 times the cross-sectional area of the wire of the clip, and the distance 8 between the pressure points 13 and 14 may be equal to two thirds of the distance w.
Patent GB-1484320-A (GB)
Title: Production of calcium hypochlorite
IPC: C01D3/04
Filed: 1974-11-07
Abstract: 1484320 Calcium hypochlorite NIPPON SODA CO Ltd 7 Nov 1974 [28 Nov 1973] 48176/74 Heading C1A Calcium hypochlorite is prepared by: (a) adding 1 part of sodium hydroxide to 17 to 57 parts of an aqueous solution saturated with calcium hypochlorite and sodium chloride; (b) chlorinating the mixture obtained in step (a) with chlorine gas to produce an aqueous chlorinated reaction mixture saturated with calcium hypochlorite and containing sodium chloride crystals; (c) removing the sodium chloride crystals from the aqueous chlorinated reaction mixture; (d) adding 1À2 to 1À7 parts of calcium hydroxide and 0À3 to 0À7 parts of sodium hydroxide to the aqueous chlorinated reaction mixture remaining after separation of the sodium chloride crystals therefrom; (e) chlorinating the mixture obtained in step (d) with chlorine gas to produce a slurry containing sodium chloride crystals, calcium hypochlorite crystals and a mother liquor saturated with calcium hypochlorite and sodium chloride; (f) dividing the slurry produced at step (e) into a first slurry (I) containing the majority of the sodium chloride crystals and a second slurry (II) containing the majority of the calcium hypochlorite crystals; (g) removing wet calcium hypochlorite crystals and sodium chloride crystals from the slurry (II) to leave a mother liquor (III) saturated with calcium hypochlorite and sodium chloride; (h) drying the wet calcium hypochlorite crystals removed from the slurry (II) to obtain an end product of calcium hypochlorite having an active chlorine content of more than 60%; and (i) recycling the mother liquor (III) and slurry (I) to step (a) as the aqueous solution saturated with calcium hypochlorite and sodium chloride.
Patent GB-1288301-A (GB)
IPC: G01B11/02
Filed: 1969-10-01
Abstract: 1288301 Projected distance measurement A G A AB 1 Oct 1969 [9 Oct 1968] 48177/69 Heading G2J A device for measuring the projected distance between two points 1, 2 projected on to a plane includes a lens system 5 whose optical axis is perpendicular to the plane containing the projected distance, a primary deflecting means 7, 9 for deflecting the optical axis in opposite directions perpendicular to said axis and a pair of spaced adjustable secondary reflectors 6, 8 for perpendicularly deflecting the opposite directions parallel to the optical axis so that images from the points may be brought into coincidence and the projected distance read-off on a scale 14. The reflector 8 is attached to scale 14, while the other secondary reflector 6 is attached to a carriage 11 for movement, having a pointer 15 cooperating with the scale, the carriage being moveable on rollers 12. The primary deflecting means comprises a partial reflector 7 and a full reflector 9. A guide-member 17 attached to the carriage 11 has a slot 18 co-operating with a pin 19 for adjustment of the back focal length of the lens system. In a modification, Fig.2 (not shown) the lens system (5<SP>1</SP>) is movable in a direction parallel to that of the adjustment of the reflectors 6, 8 so that lens 5 may be positioned at 20; if point 2 is moved to 2<SP>1</SP>, both points 1, 2<SP>1</SP> are thus kept in focus. The pin and slot mechanism is in this case replaced by a more complex coupling.
Patent GB-1087868-A (GB)
Title: Improvements in or relating to belt drive transmission assemblies
Inventor: HORN ALAN NELSON
IPC: F16H7/12
Filed: 1963-12-06
Abstract: 1,087,868. Variable-speed -belt gearing. JOHN WILDER Ltd. Feb. 17, 1965 [Dec. 6, 1963], No. 48272/63. Heading F2D. In a multi-speed belt drive for agricultural machinery, comprising driving and driven shafts 50, 42 having complementary stepped pulleys 52/54 and 44/46 respectively, and a multiple V-belt 56, the driving shaft 50 is mounted on a frame 20 pivoted at 16 to a base 4 movable on channels 2, which support the driven shaft 42, by a screw 11 and nut 10 to adjust the belt tension, so that pivoting of the frame 20 towards the shaft 42 allows manual shifting of the belt 56 from one pair of pulleys to another without affecting the setting of the belt tensioning device 10/11. The frame 20 is clamped to the base 4 in normal use by screws 28 in forks 22 pivoted to the base 4, the screws 28 being screwed down on to blocks 26 on the frame 20. The shaft 50 is driven from a bevel gear unit (60) through a shaft coupling (62) (Fig. 7, not shown), the gear input shaft (64) being connected to a tractor power take-off shaft by a telescopic universal coupling.
Patent GB-1445883-A (GB)
Title: Device for automatic signalling of an automotive vehicle  damaged by collision
IPC: G08G1/16
Filed: 1973-10-17
Abstract: 1445883 Utilizing inertia machinery SERPRO SOC D'ETUDES ET DE RECHERCHES POUR LA PROTECTION 17 Oct 1973 [23 Feb 1973 14 Aug 1973] 48405/73 Heading F2X [Also in Divisions G4 and H1] A striker in a device starts an irreversible process for warning other drivers automatically when a vehicle is immobilized in a collision; the striker is spring loaded and normally locked positively but under an impact force an inertial block unlocks it. In one embodiment an inertial arrangement comprises blocks M1-M4, Figs. 1, 2, in respective pipes T1-T4 and acting on respective strikers P1-P4. Striker, e.g. P2, has an offset D2 bearing against a shoulder on block M2, and is loaded by a spring S2. Even under severe braking a block is arranged not to free its associated striker but moves sufficiently to keep the block "free" in its pipe; in a serious collision, however, one or more blocks move sufficiently against the retaining springs to free corresponding strikers, see block M1 in Fig. 2. The striker may actuate smoke-producing means, an optical or acoustical transmitter, or power to a radio transmitter. A more detailed arrangement is described, in which orthogonal inertial cylinders (22) are provided each is differential in action and stepped to permit a locking member (38) to drop to relase the associated striker (31) to relase a smoke-producing fluid (41), Figs. 3 to 5 (none shown). The striker may close electric contacts, which may be mercury type, Fig. 9 (not shown), or actuate a primable electric supply cell, Fig. 8 (not shown). The mounting position of the device is discussed, Figs. 6, 7 (neither shown). Manual electric switch, Fig. 11.-A rod 122 is locked by a wire 125 and when a knob is pushed the rod is moved to interconnect terminals 132, 133 and the rod is locked by a hole 123 therein receiving a pin 127. A radio transmitter, flashing lights and the vehicle's horn are simultaneously actuated, Fig. 10 (not shown), in a circuit incorporating the automatic device. Other embodiments of the automatic device are described, Figs. 12-15 (none shown).