baber/WOPTO huggingface dataset:
Patent GB-920080-A (GB)
Title: Polymers containing isocyanurate rings
Inventor: FRANCE HAROLD
IPC: C08G18/28
Filed: 1960-10-20
Abstract: Organic isocyanates are polymerized to give products containing isocyanurate rings by treating said isocyanates with a catalyst selected from alkali and alkaline earth metal oxides, hydroxides, carbonates, alcoholates and phenates, alkali metal salts of enolizable compounds and metallic salts of weak carboxylic acids, in the presence of a mono-N-substituted carbamic acid.  The latter is preferably formed in situ by the addition of an alcohol or phenol to the isocyanate to be polymerized and may be derived from aliphatic, alicyclic or araliphatic monohydric alcohols, polyhydric alcohols and mono- or polyhydric phenols.  A solvent may be used.  The proportion of catalyst may be within the range of 0,01 to 10% by weight of the isocyanate, and of the carbamic ester within the range 0,05 to 5% by weight of the isocyanate. The temperature may be from 15 DEG  to 250 DEG C., preferably 15 DEG  to 75 DEG C. Examples describe the preparation of polymers containing free isocyanate groups from tolylene-2,4-diisocyanate, a mixture of tolylene2,4- and 2,6-diisocyanates, and from hexamethylene diisocyanate.  Many other isocyanates are specified.  The products may be used in the preparation of polyurethane products. Specifications 809,809 and 842,154 are referred to.ALSO:Organic isocyanates are polymerized to give products containing isocyanurate rings by treating said isocyanates with a catalyst selected from alkali and alkaline earth metal oxides, hydroxides, carbonates, alcoholates and phenates, alkali metal salts of enolisable compounds and metallic salts of weak carboxylic acids, in the presence of a mono-N-substituted carbamic acid.  The latter is preferably formed in situ by the addition of an alcohol or phenol to the isocyanate to be polymerized and may be derived from aliphatic, alicyclic or araliphatic monohydric alcohols, polyhydric alcohols and mono- or poly-hydric phenols. A solvent may be used.  The proportion of catalyst may be within the range of 0.01 to 10% by weight of the isocyanate, and of the carbamic ester within the range 0.05 to 5% by weight of the isocyanate. The temperature may be from 15 to 250 DEG C., preferably 15 to 75 DEG C. Examples describe the preparation of polymers containing free isocyanate groups from tolylene-2,4-diisocyanate, a mixture of tolylene-2,4- and 2,6-diisocyanates, and from hexamethylene diisocyanate.  Many other isocyanates are specified.  The products may be used in the preparation of polyurethane products. Specifications 809,809 and 842,154 are referred to.
Patent GB-1395304-A (GB)
Title: Energy storage device
IPC: F03G3/08
Filed: 1973-07-28
Abstract: 1395304 Momentum power-storing apparatus TIN WAH-CHEUNG 28 July 1973 36043/73 Heading F2X An energy storage device comprises a flywheel 30 mounted on one end of a shaft 23, the other end of which carries a spur wheel 24 engaging a spur wheel 26 fitted by means of a friction ratchet (28) (Fig. 1, not shown) on a crank-shaft 3 connected by a friction ratchet (2) (Fig. 1, not shown) to a handle 1. A slotted link 7 has a first sliding block 10 pivoted on a bolt 11 secured to the frame 34 of the device and second sliding block 6 pivoted on a crank-pin 5 on the crank disc 4. The upper end of the link 7 is connected by a pin 8 to a triangular member 9 which is adapted to slide along horizontal ways 12. A roller 16 which engages an inclined surface of the triangular member 9 is joined by a pin 19 to a plate member 18 which is adapted to slide along inclined ways 14. A rack 17 on the upper surface of the plate member 18 engages a pinion 21 fitted by means of a friction ratchet 22 on the shaft 23. A stopper 32 is pivoted by a bolt 31 on the frame 34 and a compressed leaf spring 33 is located between the stopper 32 and a hook 20 on the upper end of the plate member 18. Friction ratchet 22 rotates clockwise and friction ratchets 2, 28 rotate counter-clockwise, as shown by the arrows in Fig. 2. On turning the handle 1 counter-clockwise, the slotted link 7 operates to cause the triangular member 9 to move to-andfro along the horizontal ways 12, whereupon the plate member 18 is caused to move to-and-fro along the inclined ways 14. The rack 17 then brings about rotation of the pinion 21 and of the shaft 23. Both the flywheel 30 and the spur wheel 24 are thereby rotated in a clockwise direction, rotational energy being fed back to the crank-shaft 3 by way of the spur wheels 24, 26. By swinging the stopper 32 in the direction of the arrow shown in Fig. 2, the hook 20 is locked by the stopper 32 and the flywheel 30 is brought to a halt.
Patent GB-999884-A (GB)
Title: Improvements in or relating to driven plates for friction clutches
Inventor: DAVIES DAVID AUBREY
IPC: F16D13/64
Filed: 1962-09-21
Abstract: 999,884. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 18, 1963 [Sept. 21, 1962; March 19, 1963], Nos. 36048/62 and 10832/63. Heading F2C. The driven plate of a friction clutch comprises a pair of spring discs 15 secured on opposite sides of a hub ring 16, their peripheral spacing being constrained, to place them under stress, by a series of rivets 18 which serve to secure friction elements 17 to the discs. In the form shown in Fig. 2, the discs are plane, but in that of Fig. 6, tongues 27 located between the rivets 18 are bent out from one of the discs and engage the other. In a further form, Fig. 4 (not shown), the rivets 18 hold the discs 15 to a slightly inward conical form so that the clutch pressure plate first engages the inner edges of the friction elements 17 to flatten them, and then squeezes the discs, to give a two-stage application.
Patent GB-810015-A (GB)
Title: Improvements in method of making bearings
IPC: C25D7/10
Filed: 1956-11-26
Abstract: 810,015. Bearings. MACHLETT LABORATORIES Inc. Nov. 26, 1956 [Dec. 5, 1955], No. 36084/56. Drawings to Specification. Class 12 (1). [Also in Group XXXVI] Hard ferrous alloy e.g. alloy steel ball and roller bearing parts are activated by abrading, e.g. sand-blasting, and while still active are electroplated with a lubricating metal, e.g. silver. The electroplating may be effected in two stages, first from a strike bath to seal the active surface and then from a normal plating bath to build up the lubricating layer.
Patent GB-1277338-A (GB)
Title: Two state transistor circuit with hysteresis
Inventor: HEIMBIGNER GARY LEE
IPC: H03K3/3565
Filed: 1970-07-24
Abstract: 1277338 FET Bi-stable circuits NORTH AMERICAN ROCKWELL CORP 24 July 1970 [20 Nov 1969] 36094/70 Heading H3T Cross-coupled F.E.T.'s 12, 14 have an input circuit 10, 11 including a part, F.E.T. 11, in parallel with F.E.T. 12, the bi-stable so formed being switched one way and the other at respective levels of an input signal Y with a hysteresis dependent upon the parallel F.E.T.'s 11, 12. Thus a negative going input Y turns on F.E.T. 10 (the F.E.T.'s being P-type) whose source X 1  turns on F.E.T. 14. The output Z goes to earth and F.E.T. 12 is turned off. This changes the voltage divider ratio of F.E.T. 10 to F.E.T.'s 11, 12 and point X 1  goes more negative to turn on F.E.T. 14 harder, and so on. When Y goes positive the reverse happens with a hysteresis, (E-F, Fig. 2a, not shown). In a modification, a resistance-connected F.E.T. (15, Fig. 3, not shown) is included between F.E.T. 10 and F.E.T.'s 11, 12. In another modification (Fig. 4, not shown) the F.E.T. 12 is replaced by a F.E.T. (16) in parallel with the extra resistanceconnected F.E.T. (15) and an inverter stage (F.E.T.'s 18, 13) included before the output F.E.T. (19). In a different modification (Fig. 5, not shown) resistance connected F.E.T.'s (20, 22) are added between the supply and the respective chains of F.E.T.'s 10, 11 (21, 23 in Fig. 5), and an inverter stage is included before the output, taking its signal from the drain instead of the source of F.E.T. 10 (21). In a final embodiment (Fig. 7, not shown) Fig. 1 is modified by having F.E.T.11 (34) drain connected to F.E.T. 10 (33) drain and not source; and its gate connected to a potential divider formed by a resistance-connected F.E.T. (31) and further F.E.T. (30) receiving the input at its gate. A resistanceconnected F.E.T. (32) is included between the supply and F.E.T. 10 (33). These modifications provide different hysteresis bands and different values for the band limits with respect to earth.
Patent GB-879327-A (GB)
Title: Improvements in or relating to apparatus for handling and transporting molten metals
IPC: C21B3/10
Filed: 1959-10-26
Abstract: 879,327. Load-handling machines. REGIE NATIONALE DES USINES RENAULT. Oct. 26,1959 [Nov. 27, 1958], No. 36176/59. Classes 78 (3) and 78 (4). A truck for transporting and distributing molten metal comprises a column 2 on which is slidably mounted a bracket 3 on which is rotatably mounted a fork 4 having arms 5. The rotation is actuated by an hydraulic cylinder 6 associated with a rack and pinion device. Similar mechanism actuates the travel of the bracket 3. Trunnions 9 support a metal ring 8 receiving a pouring ladle 7. The ladle is tilted about a horizontal axis 9 by actuating an hydraulic cylinder 15 and rack and pinion device acting through links 13.
Patent GB-1098786-A (GB)
Title: An improved hair setting device
Inventor: PRESCOTT NORMA ELIZABETH
IPC: A45D19/16
Filed: 1966-08-12
Abstract: An apparatus for setting and force drying hair comprises a steam generator, a cap adapted to surround the hair and a hair drier, wherein an air conduit from the hair drier leads into the cap and the conduit from the steam generator is closable and leads into the air conduit, the arrangement being such that the flow of air from the hair drier into the cap draws steam from the steam generator into the cap when the conduit from the steam generator is open.  The steam generator suitably has a spout and the steam may pass from this through a plug with a restricted orifice into the conduit.
Patent GB-177595-A (GB)
Title: Resilient vehicle wheels
IPC: B60B9/20
Filed: 1920-12-24
Abstract: 177,595. Prentiss, E. L., and Dobbins Wheel Co. Dec. 24, 1920. Double and multiple wheels arranged side by side ; spring wheels.-In a wheel of the type having a pneumatic cushion between the hub and rim, connection between the rim and the cushion is made by rocking members having an inner part gripping the cushion and knife-edges co-operating with bearing-members on the rim. The rim 23, carries bearing members 22 in which the knifeedges of the rocking members 14 engage. The members 14 have side flanges engaging the preferably V-shaped periphery of the cushion. The cushion is housed in a peripheral groove in a body member 1. Retaining-plates 40, on the sides of the bearing members 22, embrace extensions 16 of the rocking members 14. Springs 49 bear on a flat surface on the members 14 sc as to align them in the event of abnormal shocks disengaging them from the cushion 11. Discs 33 enclose the side of the wheel and are in sliding connection with the member 1 and brake-drum. Washers of asbestos treated, with graphite are used between the adjacent surfaces. Two wheels may be mounted. side by side, one having an enlarged bore fitting an extension of the hub of the other. Reference has been directed by the Comptroller to Specifications 156,239 and 156,240.
Patent GB-780506-A (GB)
Title: Improvements in bottle crates
Inventor: BRETT PERCY CHARLES
IPC: B65D25/10
Filed: 1954-12-15
Abstract: 780,506. Crates. BRETT BROS., Ltd. Oct. 10, 1955 [Dec. 15, 1954], No. 36279/54. Class 18. A crate for bottles comprises an open-topped rectangular box in which a pair of opposite side walls 2 are made with a recess 4 on their respective inside faces from the bottom 2c of the box up to a thick part 2a of the wall forming a ledge 3 lying parallel to the bottom 2c. The recess may be made by forming the wall with a top batten leaving an open space below to be covered by a metal plate outside the crate. A central partition may be provided, having retaining ledges.
Patent GB-1283991-A (GB)
Title: A-norpregnanes
IPC: C07J61/00
Filed: 1969-08-01
Abstract: 1283991 A-Norpregnenes E R SQUIBB & SONS Inc 1 Aug 1969 [1 Aug 1968] 36294/69 Heading C2C The invention comprises 17α,20α- or 17α-20#- dihydroxy - A - norpregn - 3(5) - en - 2 - one and mono- and di-acylates thereof wherein the acyl groups are derived from hydrocarbon carboxylic acids of up to 12 carbon atoms; and their preparation from 17α-hydroxy-A-norprogesterone by reduction either enzymatically using Streptomyces roseochromogenus to give the 17α,20α-diol, or with sodium borohydride to give the 17α,20#-diol, optionally followed in both cases by acylation. The inventive compounds are said to be antiandrogenic and may be made up with carriers into pharmaceutical compositions for oral, parenteral and topical administration.
Patent GB-1286409-A (GB)
Title: A sheet control device for a sheet printing press
IPC: B65H43/04
Filed: 1970-07-28
Abstract: 1286409 Delivering sheets ROLAND OFFSETMASCHINENFABRIK FABER & SCHLEICHER AG 28 July 1970 [31 July 1969] 36399/70 Heading B8R A sheet delivery apparatus for a sheet printing press assembly in which sheets 17 are conveyed from the press to a utilization point, e.g. a stack (8), Fig. 1 (not shown), by means of grippers 9, 18 on an endless conveyer 6, the grippers releasing the sheets above the utilization point, includes a sheet delivery control device having a probe 12 supported beyond a point at which the grippers are opened for sheet release, said probe extending into the path of sheets not so released but clear of the grippers such that a retained sheet moves the probe into operative position, actuating switch means 16 in a sheet conveyance control circuit, e.g. to stop the press. The probe may be spring biased.
Patent GB-1281759-A (GB)
Title: Zinc-based alloys
Inventor: ISOBE TAKEHIRO
IPC: C22C18/04
Filed: 1970-07-28
Abstract: 1281759 Zinc base alloy NISSO SMELTING CO Ltd 28 July 1970 36478/70 Heading C7A Compression resistant Zn base alloy comprises: - with an optional addition of 0.01-3% Ag, the balance being Zn. Uses:In pistons, pressure instruments, spring boxes, machines and bearings.
Patent GB-412504-A (GB)
Title: Improvements in and relating to extending tables
IPC: A47B1/02
Filed: 1933-12-29
Abstract: 412,504. Tables. COOPER, D., Maisondieu Lane, Brechin, Angus. Dec. 29, 1933, No. 36576. [Class 52 (iii).] An extensible table top comprises two leaves 4, 5 only. They are of equal area, are hinged together along adjacent ends, and are slidably connected to the table frame by Z-shaped brackets 7, 8 sliding under guide bars 6 on the side rails 2 of the table. In a modification, the parts 7, 8 are replaced by L-section slide members. To extend the table top, the leaf 4 is moved to the left hand end of the rails 2, and the leaf 5 opened out.
Patent GB-363120-A (GB)
Title: Improvements in or relating to wringers
IPC: D06F45/00
Filed: 1930-12-04
Abstract: 363,120. Wringers. LOVELL MANUFACTURING CO., Erie, Pennsylvania, U.S.A.-(Assignees of Schuda, E. J. ; 1683, West 14th Street, Erie, Pennsylvania, U.S.A.) Dec. 4, 1930, No. 36652. Convention date, May 31. [Class 138 (ii).] In a wringer having a guard 9, Fig. 1, at each end of the rollers to deflect water away from the roller bearings, the sides of the vertical slot 6, Fig. 3, in the inner faces of the hollow side stiles 2 are provided with recesses 10, 11. Ears 12, 13, Fig. 4, projecting rearwardly from the guard, which is provided with a vertical slot 9b and a rounded lower end 9a which passes under the lower roller, are passed through the recesses 10, 11 and are then bent over on the inside of the stile.
Patent GB-1452761-A (GB)
Title: Thrust transmitting assemblies
IPC: F16D65/56
Filed: 1973-08-01
Abstract: 1452761 Internal shoe drum brakes; linkwork GIRLING Ltd 30 July 1974 [1 Aug 1973] 36666/73 Headings F2E and F2K A thrust transmitting assembly comprises a load input member e.g. a piston 16, slidably mounted within a load output member, e.g. a sleeve member 13, and means, e.g. a mass of resiliently deformable material 18, for transmitting movement of the input member to the output member in the same direction but at a higher speed. As shown the material 18 is interposed between the head of the piston and a smaller diameter piston 17 which is limited for movement in said same direction by a pin 20. The assembly is mounted between adjacent ends of a pair of brake shoes 1, 2. The transmitting assembly forms part of a screw threaded strut assembly 10 of an automatic adjuster which further comprises a rectilinearly slidable link 34 mounted on a member which, in use, is fixed in relation to the brake back plate 3, and arranged to sense movement of brake shoe 2 and, in response to excess shoe movement, to operate a lever 31 which in turn effects corresponding adjustment of the length of the strut assembly 10. Longitudinal movement of the link 34 in one direction is limited by an adjustable stop 36 which defines the rest position of the link. The lever 31 operates on a ratchet wheel 30 to effect adjustment of the strut assembly 10.
Patent GB-401130-A (GB)
Title: Improvements in rotary engines
IPC: F04C2/10
Filed: 1932-12-28
Abstract: 401,130. Rotary pumps ; packing joints. KEMPTON, H. E., 6324, Kimbark Avenue, Chicago, U.S.A. Dec. 28, 1932, No. 36692. [Classes 110 (ii) and 122 (iii).] In a pump having a rotor disc 18 provided with teeth 20 which mesh with a pinion 23 mounted on a pin 25, the two rotors being separated in part by a crescent-shaped block 26, a packing ring 29 in the form of a gasket is provided between the faces of the casing 10 and the end cover 16. Annular grooves 31, 32 are formed in these faces and communicate one with the other by means of one or more holes in the gasket. One of the grooves leads leakage fluid from the casing, into the suction side of the pump. The rotor 18 bears against a rigid plate 22. Splash lubrication is secured by means of a rotor 22a.
Patent GB-338742-A (GB)
Title: Process for the manufacture of alkyl halogen compounds
IPC: C07C17/10
Filed: 1929-11-29
Abstract: 338,742. Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij. June 8, 1929, [Convention date]. Alkyl chlorides and bromides are prepared by the chlorination or bromination of paraffin hydrocarbons. The halogen and the hydrocarbon vapours are mixed in the dark at a low temperature in order to avoid premature reaction between the components. The mixture is then heated to a suitable elevated temperature without the use of sunlight, daylight, or artificial light. Neither a diluent such as steam nor large excess of hydrocarbon need be used; a, suitable mixture is composed of 3 parts by volume of hydrocarbon to 1 part of halogen. As the nature of the materials of the reaction vessel considerably affects the course of the reaction, material which causes a deposition of carbon, e.g. V2A steel, should .be avoided; suitable materials specified are enamelled metal and " pyrex " glass. In the examples, the methods of preparing pentyl, butyl, and propyl chlorides and butyl bromide are described, and suitable temperatures for the chlorination of methane, propane, butans, and pentane are given.
Patent GB-1249714-A (GB)
Title: Improvements in or relating to target structures for image pick-up tubes
Inventor: GORDON EUGENE IRVING
IPC: H01J29/45
Filed: 1969-07-22
Abstract: 1,249,714. Image pick-up tubes; semiconductor targets. WESTERN ELECTRIC CO. Inc. 22 July, 1969 [26 July, 1968], No. 36720/69. Headings H1D and H1K. [Also in Division C7] In a method of making a target structure for an image pick-up tube, the structure comprising a semi-conductive substrate 20 of one conductivity type having adjacent one surface thereof an array of charge storage regions 21 which are preferably of opposite conductivity type, and a layer 22 of insulating material covering the surface except for at least part of the regions and adapted to shield the surface from a scanning electron beam; an array of conductive metal deposits 23 are formed on the regions 21 by electroless or electrolytic deposition. The deposits 23 may extend outwardly of the surface of the layer 22 thereby partly shielding the layer and increasing the beam landing area, or may alternatively be flush with the surface. The regions 21 may be partly etched out before the metal areas 23 are deposited so that these areas are anchored within the substrate and the space charge regions are brought closer to the bottom of the target and the resolution is improved (Fig. 3, not shown). In one example a silicon target having a 10 ohm-cm. N-type base region and a hexagonal array of diodes formed by boron diffused regions 8 microns in circumference on 15 micron centres defined by a SiO 2  insulating film is cleaned in HF and immersed in a gold cyanide bath. The bath consists of 21.3 g./l. KAu(CN) 2  and 50 g./l. (NH 4 ) 2 HC 6 H 5 O 7  at 65‹ C. and the target is cathodic with a current density of 4 ma./cm.<SP>2</SP> of exposed silicon. After plating for one hour a gold layer 6-8 microns thick covers each diode region. Alternative metals for electroplating are nickel, cobalt, palladium, platinum or the platinum group, silver, or copper; for electroless deposition the metals nickel, cobalt and platinum are suitable. A minimum thickness of 300 Š is adequate. The storage areas need not be PN junctions but may be M1S diodes or rectifying barriers constituted by metal-semiconductor contacts as in Schottkybarrier devices.
Patent GB-934378-A (GB)
Title: Higher amino hydroxy nitriles and their production
IPC: C07C255/26
Filed: 1960-10-26
Abstract: The invention comprises amino-hydroxy alkyl nitriles RCN, in which R is an alkyl group having 8-24 carbon atoms, at least one pair of adjacent carbon atoms of R carrying on one carbon atom of the pair a hydroxy group, and on the other carbon atom of the pair a group-NR1R2, where R1 and R2 are hydrogen or aliphatic, aryl or aralkyl groups, or together with the nitrogen form a heterocyclic ring; and their preparation by reacting an epoxidised C8-24 alkyl nitrile with ammonia or an appropriate primary or secondary amine. Specified amines are ethylene diamine, diethylenetriamine or other polyamines, morpholine, thiomorpholine, piperazine, ethanolamine, diethanolamine and aminophenols.  The epoxy-starting material may be obtained by reacting perbenzoic or peracetic acid with an unsaturated fatty nitrile, e.g. those obtained from ammonia and oleic, erucic, eleostearic, linoleic, linolenic, clupanodonic, palmitoleic or palmitolenic acid, or from an unsaturated alkyl halide and an inorganic cyanide.  The compounds of the invention are useful as plasticizers for polyvinyl resins, sludge-inhibiting additives for fuel oils, and as corrosion inhibitors (see Group XVIII).