baber/WOPTO huggingface dataset:
Patent GB-1084203-A (GB)
IPC: C08J3/07
Abstract: 1,084,203. Unsaturated polyester resins. BECK, KOLLER & CO. (ENGLAND) Ltd. Sept. 15, 1964 [Nov. 7, 1963], No. 37661/64. Addition to 985,770. Heading C3P. Copolymers are prepared by copolymerizing (a) 10 to 90 weight per cent of unsaturated polyesters with acid numbers 3 to 40 and average molecular weight 600 to 2500, obtained by esterification or transesterification of saturated and/or unsaturated natural oils and/or fats and/or fatty acids derived therefrom and/or synthetic fatty acids with 5 to 22 carbon atoms, with 30 to 70 weight per cent of polyalcohols having 2 to 6 carbon atoms and 70 to 30 weight per cent of saturated and/or unsaturated dicarboxylic esters thereof, optionally with mono- and/or polycarboxylic acids such that the proportion of monocarboxylic acid or equivalent is 5 to 50 weight per cent of the total carboxylic acid or equivalent; with (b) 10 to 90 weight per cent of (b<SP>1</SP>) 50 to 99 weight per cent of one or more ethylenically unsaturated compounds free from reactive hydrogen atoms and (b<SP>11</SP>) 1 to 50 weight per cent of one or more ethylenically unsaturated compounds containing at least one reactive hydrogen atom, in the presence of solvents and accelerators. The component (b<SP>11</SP>) may be constituted by 0À5 to 5 weight per cent of α,(#-ethylenically unsaturated carboxylic acids and/or 1 to 30 weight per cent of ethylenically unsaturated compounds having alcoholic hydroxyl groups and/or 1 to 15 weight per cent of α,#-ethylenically unsaturated acid amides. Polymerization may be effected in the presence of regulators such as lauryl mercaptan, butyl mereaptan, chloroform and formaldehyde sulphinic acid. Many suitable polyester forming components, comonomers, solvents and accelerators are specified and examples describe the preparation of polyesters from (A) ricinic acid, pentaerythritol, ethylene glycol, phthalic anhydride and maleic anhydride, (B) branched glycidyl fatty acid, glycerol, maleic anhydride and phthalic anhydride, (c) C 5-9  fatty acids, trimethylol propane, phthalic anhydride, adipic acid and maleic anhydride, (C) ricinus oil, trimethylol propane, phthalic anhydride and maleic anhydride; and the copolymerization of (A) with (1) hydroxypropyl methacrylate, methacrylic acid and butyl acrylate, together with (2, 3 and 5) styrene and (4) methyl methacrylate, the copolymerization of (A) with ( 11 ) hydroxypropyl methacrylate, acrylamide and styrene together with (12) methacrylic acid; the copolymerization of (B) with (6) hydroxypropyl methacrylate, methacrylic acid and butyl acrylate, together with (7 and 8) styrene; the copolymerization of (C) with (9) hydroxypropyl methacrylate, methacrylic acid and butyl acrylate, together with (10) methyl methacry. late; and the copolymerization of (D) with (13) hydroxypropyl methacrylate, methacrylic acid, butyl acrylate and styrene.
Patent GB-1095343-A (GB)
IPC: D06B23/04
Abstract: 1,095,343. Package tube. FARBWERKE HOECHST A.G. Jan. 29, 1965 [Jan. 29, 1964], No. 4043/65. Heading B8M. A frusto-conical perforated plastics tube 1 on which threads of a linear, macromolecular, polymer may be wound to be dyed has a height between 170 and 270 mm., a lower inside diameter of from 55 to 85 mm. and an upper inside diameter of 35 to 65 mm.; the threads are wound to form a cheese having convex end surfaces. The plastics material is preferably a polyolefine (polyethylene or polypropylene) dimensionally stable up to 140‹ C. Preferably the tube has a lower diameter of 71À5 mm., a taper of 3¢ degrees and an upper diameter of 50 mm.; the wall thickness is 1À0 to 4À0 mm. and the perforations, widening from interior to exterior, have a diameter 3 to 10 mm. The surface of the tube may have protuberances or grooves. A paper-like structure may be interposed between the windings and the tube. 600 to 1500 gm. of thread are wound in a cheese, the thread making 1À5 to 4À5 turns between the ends of the cheese and having an external hardness of 30 to 85 shore.
Patent GB-1226962-A (GB)
IPC: B24B55/06
Filed: 1967-06-21
Abstract: 1,226,962. Removing waste products in industrial processes. MOLINS MACHINE CO. Ltd., D. T. N. WILLIAMSON, and G. C. MITCHELL. 21 June, 1968 [21 June, 1967], No. 28612/67. Heading F4X. Swarf is removed from a series of machine tools 1-6 through holes 8-13 in the floor 7 beneath the tools and passes via flexible trunks 21 to a duct in the form of a vibratory conveyer made up of sections 14 carried by springs 28 and vibrated to transport the swarf along the duct to a suitable destination e.g. a silo or briquetting machines. An induced air flow is applied to the duct through pipes 26 to entrain metallic dust and oil droplets present, these being separated out from the air flow on passing  through a filter (34, Fig. 3, not shown). Each conveyer section 14 is subdivided by a central vertical partition 18 into two compartments so that different kinds of swarf can be simultaneously conveyed separately on opposite sides of the partition. An adjustable flap 24 directs the swarf from each respective tool to the desired side of the partition 18. The sections 14, which are joined together by flexible sleeves 20, are provided with drainage pipes 39. In an alternative embodiment (Figs. 6 and 8, not shown) the vibratory arrangement for conveying the swarf through the duct sections is replaced by a series of endless conveyer belts (140) made of porous material, the swarf being transferred from one endless conveyer to the next by interposed rotary brushes (143).
Patent GB-1227947-A (GB)
IPC: B64D17/22
Filed: 1967-06-15
Abstract: 1,227,947. Parachute harness. IRVING AIR CHUTE OF GREAT BRITAIN Ltd. 5 June, 1968 [15 June, 1967], No. 26747/68. Divided out of 1,227,946. Heading A3V. [Also in Divisions A4 and E2] A manually releasable coupling particularly for parachute harness comprises two bars 12, 13 pivotably connected at one end and releasably connectible at the other end by means of a movable element 21 which can be moved from a position trapping bar 13 to a position releasing it, by an operating member 27 which can be locked in a position trapping bar 13 and only unlocked by a displacement of the operating member 27 against a spring force in a plane different from the plane in which the operating member can move to untrap the second bar 13. A boss 19 has a position 23 cut out of its periphery and the rotatable cylinder 21 has a U-shaped recess 24 and the cylinder 21 can be rotated by means of a lever 27 sunk into a slot 28 in the cylinder 21, so that either recess 24 registers with the cut out portion 23 to form an opening to receive a lug 25 on the end of a bar 13 or the horseshoe shaped portion 26 of the cylinder 21 acts as a movable locking element to trap bar 13. The lever 27 is pivoted on a pin 29 at right angles to the plane of rotation of the cylinder and the spring urges it so that its end 31 abuts the bar 12 when in the trapping position and two thumb pads 32 overlap the sides of the bar 12. A stop 33 is provided to limit rotation of the lever 27 in either sense to fully open position and to stop grit getting in between the lever 27 and the cylinder 21. A pin 36 driven in a hole 35 engages in a groove 34 and prevents axial movement of the cylinder. The cylinder 21 is provided with a flat face 37 and a projection 16 is drilled to house a spring 38 and a bore 39 so that the cam action of the bore 39 on the flat face 37 tends to position the thumb pad 32, preferably chamfered to provide a lead, on each side of the projection 16. An additional member 41 with a hole to engage for example a spare parachute can be trapped between the bars 12 and 13.
Patent GB-1228775-A (GB)
IPC: H04R1/40
Filed: 1967-06-06
Abstract: 1,228,775. Loud-speakers. ACOUSTICAL MFG. CO. Ltd, 6 June, 1968 [6 June, 1967], No. 26151/67. Heading H4J. An electrostatic loud-speaker has a plurality of coplanar, separately electrical drivable sections. All the sections either share a single membrane or have coplanar membranes. All are substantially acoustically transparent over a given range of frequencies. In use a uniform polarizing charge is established on the membrane or membranes of all the sections. An electrical network has input terminals and includes the loud-speaker sections as parallel components. Constant current drive of the network is effected. As described, a circular diaphragm 1 is supported between concentric, perforated, rigid plate electrodes 2, 3 whereby separately energizable loud-speaker sections are formed. The various sections are connected by impedances 4 to form an electrical network. The series branches of the network may delay and/or attenuate the signal voltages applied to the individual parallel components so that the total radiating area and/or its effective phase contour varies with frequency. In use the diaphragm 1 is connected to a polarizing voltage source 5. Charge uniformity is effected by distributing a high resistance (shown as 6) in the diaphragm itself. Acoustic transparency is obtained by appropriate selection of diaphragm tension and mass. The vector sum of the currents in the individual sections (i.e. the total current at the input terminals of the network) is controlled by a resistor 7 which samples the current flowing to the electrodes 2 of all the sections and develops a feedback voltage. This is applied via line 8 as feedback to the amplifier (not shown). The total current is thereby made proportional to the input signal. Complete and automatic control of axial response may be obtained over a wide frequency range.
Patent GB-1229745-A (GB)
IPC: B60T8/42
Filed: 1969-01-31
Abstract: 1,229,745. Anti-skid control of fluid pressure brakes. KELSEY-HAYES CO. 31 Jan., 1969 [31 Jan., 1968], No. 5300/69. Headings F2F and F2V. An anti-skid control system for fluid-pressure brakes includes a modulating valve 24 in the fluid line from the master cylinder 20 to the rear-wheel brake cylinders 12 which valve includes a check valve 76 having a sealing lip portion 82 which is engaged by an enlarged diameter portion 90 of a piston 46 to block fluid flow between portions 60, 62 for a given deceleration of the rear wheels. Withdrawal of part of the piston from the cylinder 62 increases its fluid capacity to relieve the braking pressure. The piston is actuated by a vacuum suspended servo actuated by a solenoid 228 which is energized from a control module 26 which senses the rate of change of electrical signals from variable reluctance pick-ups 28, 30. During normal braking the check valve acts to proportion the fluid pressure in cylinders 60 and 62 according to the ratios of the cross-sectional areas of piston portions 88, 90, 92. In addition longitudinally extending grooves 86, Fig. 2, are formed in a valve portion 84 which provide fluid communication between the cylinders 60, 62, and the grooves are opened only slightly by the ridge 92 on the initial re-application of braking pressure so as to permit a gradual increase in braking. A similar function is performed by a throttling valve assembly 200 in the vacuum servo. The valve may also control the front brakes.
Patent GB-1230944-A (GB)
IPC: F16H61/456
Filed: 1969-05-15
Abstract: 1,230,944. Hydrostatic transmission control; linkwork. GENERAL MOTORS CORP. 15 May, 1969 [21 May, 1968], No. 24826/69. Headings F2D and F2K. In a hydrostatic transmission for a tracked vehicle wherein the transmission ratio is normally adjusted by a ratio control lever 24 and a steering control lever 25, an override control includes a governor 92 responsive to increasing engine load and a valve 104 actuated by the governor 92 on engine overload to supply pressure liquid to a liquid motor 64 which acts on the transmission ratio control linkage to downshift the hydrostatic transmission. The governor 92 and valve 104 may additionally provide an engine overspeed override control supplying pressure liquid to a liquid motor 129 which upshifts the transmission when the engine overspeeds. As shown separate hydrostatic transmissions 10, 12; 10a, 12a driving tracks on opposite sides of the vehicle are controlled by a single ratio control lever 24 which acts through a spring lost motion coupling 44, levers 36, 34 and rods 56, 56a, 59, 59a to effect equal ratio shifts in both transmissions. A steering control lever 25 acts through a bellcrank 27 and rod 37 to turn the lever 34 about a pivot 35 to effect equal and opposite ratio shifts in the transmissions. The pivot 58 between the rods 56, 59 is connected to a lever 52 in turn pivoted at 54 to a lever 53 which is turned about a pivot 63 aligned with the pivot 58 by the fluid motor 64. As the lever 53 rotates towards its outline position 71 the movement imparted through the rod 59 to the transmission ratio control lever 14 is reduced for a given movement of the rod 56 and thus with the rod 56 in a predetermined position rotation of the lever 53 effects downshift in the transmission. Overload control.-The valve 104 is normally held in the position shown in which a land 106 blocks the pressure liquid supply from an engine-driven pump 117. On overload the governor 92 detects the fall in engine speed and acts through a rod 91 and levers 87, 93 to move the valve 104 down and connect the pressure liquid supply to the liquid motor 64. The piston 76 of the motor 64 moves right against the bias of a spring 77 to reduce the transmission ratio. Movement of the piston 76 acts through a feedback linkage 79, 81, 86, 87, 93 to return the valve 104 to its central position. Overspeed control.-When the engine speed exceeds a predetermined value the governor 92 moves the valve 104 up to connect the pressure liquid supply through a line 127 to the liquid motor 129 which acts through a rod 163 on the lever 36 of the ratio adjusting linkage to upshift the transmission. The fluid motor 129 also acts through a feedback linkage 166, 168, 99, 93 to return the valve 104 to its central position. In Fig. 3 (not shown) the overspeed control is omitted and the linkage between the governor (92<SP>1</SP>) and a control valve (313) is connected to a throttle valve (311) to vary the engine speed at which the overload control operates with throttle opening.
Patent GB-1237917-A (GB)
IPC: B21J7/18
Filed: 1968-07-23
Abstract: 1,237,917. Rolling tubes. KENT-OWENS MACHINE CO. 23 July, 1968 [28 July, 1967], No. 35104/68. Heading B3M. A tube reducing machine includes arcuate die holders 84, 130 which are rockably mounted in a stationary frame and are coupled together by toothed racks 90, 92 for simultaneous movement. The lower die holder 130 is rocked by a vertical crank arm 226 and drives the upper die holders. A tubular workpiece, which is supported by a mandrel, is rotatably indexed at both ends of each stroke of the machine, and is axially indexed at one end of each stroke. The die holders carry adjustable dies 98, 126, and are supported by bearings on link members 56, 148. The link members are in turn supported by further bearings on fixed rolls 38 and 166. Rollers on the base of the die holder 130 run on tracks 194, 196 to help in guiding the holder. To provide a desired alignment for the axes of the link members, connecting links 198 and 218 are provided, the inner ends of the connecting links being coupled to a common axially movable slide 206.
Patent GB-1265116-A (GB)
IPC: C07D241/20
Filed: 1970-06-05
Abstract: 1,265,116. 2 - Amino - 3 - chloro - pyrazine. EISAI K.K. 5 June, 1970, No. 27323/70. Heading C2C. 2 - Amino - 3 - chloro - pyrazine is prepared by reaction of 2-amino-3-hydroxy-pyrazine with phosphorus oxychloride in the presence of dimethyl formamide or tetramethyl urea.
Patent GB-1266237-A (GB)
IPC: F16K31/40
Filed: 1969-06-17
Abstract: 1,266,237. Valves. DANFOSS A.S. 17 June, 1969 [19 June, 1968], No. 30586/69. Heading F2V. Electromagnetically actuated valve comprises an armature 13 housed in a chamber of the valve and separated from the magnetic core part 17 by a partition 21. This partition constitutes part of a one-piece member having a coil supporting part 19 with a bore to receive the magnetic core part and closed at one end by the partition. The one-piece member includes a skirt part 15 serving to complete a fluid chamber of the valve. The one-piece member can be injection moulded in plastic, e.g. polymethyleneoxide and include a housing 29 for the coil terminal connector. The core part 17 forms one leg of an E- or U-shaped laminated core on which is located a casing 18. This casing is of plastics applied in a mould whereby contraction holds the core tightly down. As shown, the armature carries a pilot valve 9 controlling outflow from the chamber through a diaphragm 11 to operate a main diaphragm valve 7. The chamber is supplied from the valve inlet through a hole 11 in the diaphragm.
Patent GB-1266817-A (GB)
IPC: H01H50/04
Filed: 1970-10-05
Abstract: 1,266,817. Electromagnetic relays. GRIGSBYBARTON Inc. 5 Oct., 1970 [6 Oct., 1969], No. 47207/70. Heading H1N. An electromagnetic relay has its components mounted within an encapsulating body 11 formed around a reed relay 13 and diode 34 connected across the relay coil, located between connectors 22 formed from a single plate having parts 28 which are used as a dam during the encapsulating operation and parts 24 which are subsequently bent to form parallel rows of connectors 12.
Patent GB-1289771-A (GB)
IPC: C07D239/22
Filed: 1970-01-15
Abstract: 1289771 Epoxy resins CIBA-GEIGY AG 15 Jan 1970 [24 Jan 1969] 2109/71 Heading C3B [Also in Division C2] Epoxy resins are obtained by curing a diglycidyl ether of the general formula wherein Z 1  and Z 2  each denote a nitrogen-free divalent residue which completes a 5- or 6- membered, unsubstituted or substituted, heterocyclic ring; A represents a divalent aliphatic, cycloaliphatic or araliphatic residue, X 1 , X 2 , Y 1  and Y 2  each denote a hydrogen or a methyl group and m and n each denote 0 or an integer 1-30, the sum of m and n being at least 1, with a conventional curing agent for epoxy resins. In the examples the glycidyl ether of 1,1<SP>1</SP>- methylene - bis - (3 - # - hydroxyethyl - 5,5 - dimethylhydantoin) is cured by heating with hexahydro-phthalic anhydride.
Patent GB-1302133-A (GB)
IPC: H01P1/04
Filed: 1971-02-18
Abstract: 1302133 Waveguide connections STANDARD TELEPHONES & CABLES Ltd 18 Feb 1971 4918/71 Heading H1W A flange 2 is attached to a tubular waveguide 1 by means of one or more fixing elements 5 which extend through bores 4 formed in the flange and in the outer surface of the tube. As shown the tube 1 is rectangular in section and is push-fitted into a central opening of the flange 2. Tapped bores 4 are provided at the four corners of the rectangular opening, a segment of these bores being formed by removal of material from the corners of the tube. Hollow, longitudinally-split, screws 5 are ininserted into the bores and then expanded radially by forcible insertion of steel pins 6. Alternatively, radially compressible pins made of spirally-wound steel strip may be driven into the bores. The invention may be applied to circular waveguides.
Patent GB-1302521-A (GB)
IPC: B41J1/46
Filed: 1969-04-23
Abstract: 1302521 Selective printing SABLOC AUTOMATIC SYSTEMS Ltd 23 July 1970 [23 April 1969] 50230/68 Heading B6F  Type-selecting mechanism.-A bar 43 bearing type characters on its underside is driven longitudinally to select a type character for printing on a strip 24 by a motor 55 acting through a friction clutch 48, the bar 43 being driven until a stop 45 thereon engages a selected stop 61. The stops may be positioned by depressing keys 57 as shown or in an alternative embodiment (Fig. 9, not shown) may be solenoid operated. The electric motor is reversed to return the bar to its home position after an impression has been made. Machines having more than one set of type; index setting; indication of type selected.-The bar 43 imprints a fare impression in a ticket machine wherein a type block carrying unchanging type, a type wheel 27 rotatable by a knurled knob 29 along with indicating wheels 38, and a counter 28 all print on the strip 24. Impression mechanism.-A pin 64 driven by the motor 55 acts on a cam lever 65 to urge a hammer 18 upwardly to drive a platen 10 for impression. Paper feed mechanism; line spacing.-Gears 68, 69 driven by the motor 55 drive a rack 70 to urge a pawl rack 72 past a ratchet wheel 74 on the initial rotation of the motor 55, the reverse rotation of the motor returning the pawl rack 72 to impart drive to the ratchet wheel 74 and to feed the strip 24 by means of feed rollers 22, 23. The pawl rack 72 is allowed to idle over the ratchet wheel 74 on its initial stroke but is held in contact with the ratchet wheel on its return stroke by a triangular cam (75, Fig. 2). Transverse cutting arrangements.-A cutting blade 80 is driven by a pin 84 from a cam lever 83 rotated by a pin 86 driven from the motor 55 through the clutch 48. Key lever construction; keys operating contacts.- Depression of a key lever 56 acts to latch the key lever and acts through a bail 61 to close a switch 62 whereby forward rotation of the motor 55 is initiated, such rotation driving the bar 43 to its selected position and subsequently driving the hammer 17 for impression through the cam lever 65. A switch 67 operated by the lever 65, ganged with a switch 87 operated by the cutter cam lever 83, reverses the drive of the motor after the impression, whereby the bar is returned and the cutter blade 80 actuated, the switch 87 being operated to re-set the switches 87, 67 for forward drive of the motor, the switch 62 being opened by unlatching of the key lever.
Patent GB-1304844-A (GB)
IPC: C25D3/02
Filed: 1969-04-24
Abstract: 1304844 Electrodeposition of metal OXY METAL FINISHING (GREAT BRITAIN) Ltd 24 April 1970 [24 April 1969] 21122/69 Heading C7B Metal is electrodeposited on to a substrate using an insoluble anode and an electrolyte containing halide ions, ions of the metal to be deposited, and an organic compound which contains an electron-accepting group and which is oxidized at the anode in preference to the halide ions. Suitable electron-accepting groups include hydroxyl, amino, carbonyl and aldehyde groups; the molecule preferably containing two such  groups, or one plus a carboxyl or sulphonic acid group. Various examples are given of suitable hydroxycarboxylic acids e.g. citric and tartaric acids, sulphonic acids, amines, aldehydes, polyhydric alcohols, etc. Metals which may be deposited include chromium, nickel, cobalt, zinc and ruthenium. The insoluble anode used may be platinized nickel, platinized titanium or carbon. The bath may include brighteners and may be agitated by passage of air through the bath. The substrate may be ferrous, carry a nickel plating (if chromium is being deposited) or be of plastics material rendered electrically conductive. The chromium may be deposited from a chromium chloride bath.
Patent GB-1314159-A (GB)
Title: Sulphonated petroleum coke
IPC: C05G3/80
Filed: 1971-05-21
Abstract: 1314159 Cation-exchanged sulphonated coke TEXACO DEVELOPMENT CORP 21 May 1971 16238/71 Heading B1J [Also in Divisions Cl and C2] A process for producing a cation-exchanged derivative of sulphonated petroleum coke useful as ion-exchange material, comprises sulphonating coke in a certain manner then contacting the sulphonted petroleum coke or its alkali metal salt, alkaline earth metal salt or ammonium salt, with at least one dilute aqueous solution containing at least one cation selected from copper, iron, magnesium, molybdenum, manganese, zinc, cobalt, ammonium and mixtures thereof, effecting ion-exchange and producing the cation-exchanged coke derivative.
Patent GB-1315532-A (GB)
Title: Vehicle doors
IPC: B60J5/06
Filed: 1970-06-19
Abstract: 1315532 Vehicle doors PLAXTONS (SCARBOROUGH) Ltd 16 June 1971 [19 June 1970] 29791/70 Headings B7B and B7J [Also in Division E1] A vehicle door comprises a panel 3, links 11, (12) pivoted to the panel and to a fixed point 13 on the vehicle, and a guide member 17 on the panel slidable in a guide track 19 which is inclined to the longitudinal axis of the vehicle. On opening, the door moves to a position at the side of a well 2 having an alighting platform (1). A hand-grip bar 16 is connected to the links 11, (12).