baber/WOPTO huggingface dataset:
Patent GB-1127383-A (GB)
Title: An apparatus for discharging feed stock
IPC: B65G53/46
Filed: 1965-12-15
Abstract: 1,127,383. Delivering measured quantities of granular material. GLANZSTOFF A.G. 15 Dec., 1965 [15 Dec., 1964], No. 53268/65. Heading B8N. An apparatus for dispensing measured quantities of granular material from containers under a vacuum or filled with a pressurized gas comprising a discharge unit 2, 3 arranged to receive the material and deliver it in measured quantities. The discharge unit includes a rotatable open-topped chamber 2 mounted in a housing 3 into which the material is fed from the container via a pipe 1, the housing having an outlet 5 leading into a cylinder 6. The cylinder 6 is joined to a further cylinder 10 in which a piston 9 is movable; a second piston 7 is also reciprocable in the cylinder 6. In operation, material is fed into the chamber 2 until it is filled, the chamber then being rotated so that the material falls through the outlet into the cylinder 6. The piston 7 is then moved to close the outlet and the piston 9 is raised to allow the material to be pushed through the open end 12 of the cylinder 10 by the continually moving piston 7; an inert gas may be fed through an inlet 11 to assist delivery. The end face 8 of the piston 7 is curved so as to be scraped clean by the piston 9 on its return stroke. In a modification (Fig. 3) the outlet 5 leads into a cylinder 13 in which the two pistons 14, 15 are reciprocated, the piston 14 arranged to close the outlet 5 and the piston 15 to open an outlet 23 leading from the cylinder; a gas for assisting delivery is fed through an inlet 21. The pistons and the measuring chamber may be automatically moved in timed sequence by either mechanical, pneumatic, hydraulic or electrical means.
Patent GB-1314356-A (GB)
Title: Fet switching circuit
IPC: H03K17/687
Filed: 1970-11-10
Abstract: 1314356 FET switching circuits INTERNATIONAL BUSINESS MACHINES CORP 10 Nov 1970 [31 Dec 1969] 53316/70 Heading H3T A switching circuit for a bipolar, analogue input signal includes a first FET Q1 having its source and drain connected between an input terminal 14 and an output terminal 18, a second FET Q2 having its drain connected to the input terminal 14 and means 22, for applying a drive signal to the circuit, having a first terminal connected to the gates of both the transistors and a second terminal connected to the source and body also known as substrate of the second transistor Q2 and to the body that is substrate of the first transistor Q1. With no drive signal both transistors Q1, Q2 are off. To turn the switch on a drive signal is induced in the secondary winding 22 such that the gate end of the winding becomes negative, with respect to the lower end, in excess of the threshold voltage of the transistors. This turns on Q2 which makes the lower end of the drive winding 22 referenced to the source of the transistor Q1 and applies the drive signal to turn on Q1. This closes the circuit path between 14 and 18. A similar action also takes place in the circuit 12 which is a mirror image of circuit 10. When the drive signal is removed Q1 and Q2 turn off. The input signal is a differential signal and may have either positive or negative polarity and the transistors Q1, Q2 may be MOS-FET type.
Patent GB-1116496-A (GB)
Title: Improvements in or relating to door latches
Inventor: JEAVONS PHILIP SWINGEWOOD
IPC: E05B65/26
Filed: 1965-12-16
Abstract: 1,116,496. Latches. WILMOT-BREEDEN Ltd. 15 Dec., 1966 [16 Dec., 1965], No. 53536/6. Heading E2A. A door latch comprises a pivotally mounted latch member 4 with a hook-like portion which projects from the edge of the door when the latch is fitted for latching engagement with a keeper 8, the latch member pivot 9 being movable from a latching position to an unlatching position in which the latch member does not project from the door edge, a spring 15 which urges the pivot towards the unlatching position, and an actuating lever for connection to a door handle which acts to urge the pivot to the latching position, the latch member acting in this way when a closing movement is imparted to the door through the door handle. To open the door, the handle is turned so that a peg 22 on the lever engages arm 25 of the latch member 4 thereby pivoting the latch member to disengage the keeper 8, which latch member is then withdrawn bodily into the door by the spring 15 acting between the latch member 4 and a latch member 5 mounted on a fixed pivot 14 and which holds the door in the open position. The latch member 5 is released by the handle pivoting the actuating lever so that a second peg 23 engages arm 26 of the latch member 5 to pivot it to releasing position. The latch members are mounted between parallel plates, the pegs 22, 23 pass through slots in one plate and the pivot 9 moves in slots in both plates. The actuating lever has an inside and outside door handle. A locking member 33 mounted on the handle shaft has an inwardly projecting snib 34 which can be turned to locking position in which locking face 31 blocks movement of the arm 25. A key operated lock cylinder within the handle shaft enables locking and unlocking from outside the door. The lock cylinder and shaft have cut outs into which a pin 38 in the locking member engages this allows the locking member to be moved to locking and unlocking position from ins de the door independently of the lock cylinder or handle
Patent GB-1483519-A (GB)
Title: Thermoplastic cigarette wrapper
IPC: F01M13/04
Filed: 1974-12-11
Abstract: 1483519 Thin cellulosic films BRITISHAMERICAN TOBACCO CO Ltd 11 Dec 1974 [12 Dec 1973] 53611/74 Heading C3F [Also in Division A2] Films for use as cigarette paper comprise: (a) 10-45% finely ground paper, (b) 1À5-2À8% KNO 3 , (c) 0-40% whitener, preferably TiO 2 , and (d) 20-55% thermoplastic binder selected from cellulose ethers, cellulose esters and mixtures thereof. 50% of the pores have a diameter of 3 microns or less in the films used. The preferred binder is a mixture of acetyl cellulose and methyl cellulose. A plasticizer is optionally present. In examples, powdered charcoal and alumina powder are disclosed as additives. Sheets cast from solutions of the composition are found to be microporous.
Patent GB-1240156-A (GB)
Title: Electric circuit connectors
Inventor: TOMLINSON MARTIN GEORGE
IPC: H05K3/32
Filed: 1968-11-12
Abstract: 1,240,156. Switchboards. NELSON TANSLEY Ltd. 12 Nov., 1968, No. 53637/68. Heading H1N. [Also in Division H2] A control panel 1 for supplying a plurality of electrical devices from the wiring system 9 of a building, e.g. a hospital, carries controls for each device and a plurality of rigidly attached pins 3 which co-operate with a cable mounted socket module 5 connecting the panel to the wiring system, the module comprising a plurality of conducting sleeves open at both ends, one end plugging on to a respective pin and the other receiving a cable terminal. The plug-and-socket connection may be fitted with locking screws 10.
Patent GB-1135689-A (GB)
Title: Novel gonane derivatives, processes for their preparation, and compositions incorporation them
IPC: B65D5/72
Filed: 1966-12-02
Abstract: 1,135,689. Steroids. ROUSSEL-UCLAF. 2 Dec., 1966 [2 Dec., 1965], No. 54091/66. Heading C2U. A novel 7α-methyl-gona-4,9-diene-3-one of the general formula wherein R represents an alkyl radical having from 1-4 carbon atoms; X represents a hydrogen atom or the acyl radical of an organic carboxylic acid or the acyl radical of a monoesterified carbonic acid, or a substituted or unsubstituted, saturated or unsaturated, cyclic, heterocyclic or non-cyclic hydrocarbon group is obtained by reacting a corresponding 3-ketalgona-5(10),9(11)-diene with a strong mineral acid, e.g. perchloric acid, HC1, H 2 SO 4 . The formed 17#-hydroxy compound may be etherified or esterified. The 3-ketal-17α-Y-17#-hydroxy-gona-5(10),9(11)-diene starting material is prepared by reducing the corresponding 3- ketal - gona - 5(10),9(11) - dien - 17 - one and the compound may be converted into the corresponding 17-alkenyloxy compound with an alkenyl halide in the presence of an acid acceptor. Pharmaceutical compositions containing the above compounds of use in the treatment of protidic anabolism, asthenia, emaciation, osteoporosis, andropause, senescence, delays in the knitting of fractures, metabolic disturbances from prolonged corticotherapy, adipose genital syndrome, functional menometrorrhagias, fibrous tumours, endometriosis and as a complementary treatment for cancer of the breast, are administered orally, perlingually, transcutaneously or rectally.
Patent GB-1371641-A (GB)
Title: Chairs
IPC: B60N2/48
Filed: 1971-11-23
Abstract: 1371641 Adjustable chairs PARNALL. & SONS Ltd 10 Nov 1972 [23 Nov 1971] 54236/71 Heading A4J The backrest 10 of a chair is mounted for vertical adjustment on a stem 15 attached to the seat, the backrest being provided with a housing in which the upper end of the stem is inserted, a T-shaped finger piece 21 being mounted in an aperture 20 in the stem, the fingerpiece extending through a slot 17 in the housing and being spring biased into engagement with a pair of a plurality of pairs of aligned recesses 18 formed in the lateral edges of the slot to hold the backrest in position on the stem, disengagement being effected by pressing the fingerpiece against the spring 24. A similar connection to that used between the stem and backrest may be used between the seat and the stem and the seat and an armrest.
Patent GB-1464269-A (GB)
Title: Heat exchangers
IPC: F24F3/147
Filed: 1974-12-17
Abstract: 1464269 Heat exchangers HUSQVARNA AB 17 Dec 1974 [18 Dec 1973] 54354/74 Headings F4H and F4S In a space heating and ventilating arrangement wherein the condenser 3 of a conventional refrigerating system heats fresh air flowing into the space whilst the evaporator 1 of the system absorbs heat from the relatively warm air exhausting from the space, the evaporator is immersed in a heat transfer liquid contained in a rotating drum 16 the wall of which is cooled by the liquid, and the exhausting space air flows over the cold outer surface of the drum (e.g. in a duct 26). Condensate from the exhausting air freezes on the drum wall, and in the coolest zone (i.e. adjacent the outlet from the air duct 26), the cooling capacity of the drum wall may be increased by internal pockets 29 which become filled with heat transfer liquid as the drum rotates. These pockets empty as the drum wall moves into a relatively warmer zone (i.e. adjacent to the air inlet of the duct 26) where the ice begins to melt and is subsequently scraped from the drum surface by a device 30. A sensor 28 detects any undue build-up of ice and causes the drum speed to be adjusted automatically so as to ensure complete de-icing of the drum wall.
Patent GB-1134100-A (GB)
Title: Stylus and equipment testing record for record players
IPC: G06K5/00
Filed: 1965-12-28
Abstract: 1,134,100. Gramophone records. K. G. CALDWELL. 28 Dec., 1965 [30 Dec., 1964; 2 March, 1965], No. 54930/65. Heading G5B. A pick-up cartridge and stylus are tested by engagement with a disc record carrying a spiral groove, or a series of circular grooves, each revolution of which exhibits two or more different wave forms which produce a visible regular pattern of light reflection, this pattern being disrupted by any damage produced by the stylus. Each separate wave form occupies a sector of the disc, the grooves in any one sector being in phase with each other so that there need be substantially no land between successive grooves. In manufacture, the modulations may be first magnetically recorded on tape wrapped round the periphery of a turntable (the division into sectors being achieved by means of switching contacts mounted on the turntable) and then re-recorded on a master disc placed on the turntable.
Patent GB-1272620-A (GB)
Title: Adjustable steering column
IPC: B62D1/184
Filed: 1969-11-11
Abstract: 1,272,620. Adjustable steering columns. CATERPILLAR TRACTOR CO. 11 Nov., 1969 [25 Nov., 1968], No. 55094/69. Heading B7H. An adjustable steering column comprises a wheel 10 on the end of a shaft 12 housed in the column 14 which is secured to a housing 18 pivotally mounted at its lower end as at 24 to a pair of brackets 20 fixed to a control console 19. A spring loaded pin 26 can engage one or other notches in the top edge of one of the brackets so that the column can be retained in any one of a number of positions as selected. The lower end of the column transmits the move - ment of the wheel 10 through fluid conduits 17 of an hydraulic steering circuit.
Patent GB-1102530-A (GB)
Title: Air cleaning apparatus
IPC: F24F3/16
Filed: 1966-12-09
Abstract: 1,102,530. Electrostatic air filter. TRANE CO. 9 Dec., 1966 [28 Dec., 1965], No. 55190/ 66. Heading B2J. An electrostatic air filter cell, e.g. for use in the return duct of a warm air furnace, comprises a frame assembly having front, back, side and end closure members, the front and back members 2, 4, Fig. 2, having air flow openings; spaced ionizing wires 52 adjacent the front opening; a first ground electrode member 54 downstream of the wires 52. a second ground electrode member 62 adjacent the back closure member; a high-voltage electrode member 58 in the frame between the first and second ground electrodes, and removable filter media 56 in the spaces on both sides of the high-voltage electrode 58, bounded by the two ground electrodes. At least one of the closure members, viz. the top frame 42, Fig. 8, is movable relative to the frame to provide access to the removable filter media. The discharge electrodes 52 are formed as separate lengths of wire each having a looped portion 90, Fig. 4, slipped through slots to overlie a segment of a bus strip 72. The wires are tensioned by springs 96. E.H.T. is conducted via a brass stud 14. Parallel grounded strips 50 are provided adjacent the discharge wires to establish the ionization field, in operation. Deodorization of purified air is effected by charcoal contained in channel 11. The power pack supplying E.H.T. is enclosed in a door unit 26, Fig. 1, and the arrangement of members is such that a filter cell may be revised to permit left or right hand mounting in a furnace/ air conditioning duct, while providing access to the door 26 and to the internal components of the filter cell.
Patent GB-1179119-A (GB)
Title: Process for the Manufacture of Hydroxylammonium Salts.
IPC: C01B21/14
Filed: 1966-12-16
Abstract: 1,179,119. Hydroxylammonium salts. FARBENFABRIKEN BAYER AG. 16 Dec., 1966 [28 Dec., 1965; 28 Nov., 1966], No. 56399/66. Heading C1A. Hydroxylammonium salts are made by passage of NO and H2 in a molar ratio of 1 : 1À5 to 1:3 into an aqueous 0À01-5N mineral acid solution containing a Group VIII precious metal catalyst at 0-80 C., the catalyst being continuously or periodically contacted with oxygen at 0-80 C. for 2-60 minutes thereby regenerating at least partly the activity and selectivity of the catalyst. The mineral acid solution may contain H2SO4, HCl, H3PO4 or HNO3. Examples describe the preparation of hydroxylammonium sulphate.
Patent GB-1338388-A (GB)
Title: Concrete pump
IPC: F04D3/02
Filed: 1970-12-01
Abstract: 1338388 Combined screw and reciprocating pumps MANCOLE CO Ltd 1 Dec 1970 [10 Sept 1970] 57022/70 Headings F1A and F1C [Also in Division B8] A concrete pump comprises a pair of side-byside pump units 23, 24 each comprising a cylinder 25 containing a screw impeller 28 on a shaft 27, the two shafts being driven by a diesel engine 15 via an intermediate shaft 22 through a belt drive 17 and a chain drive 36. Each shaft 27 is connected via a thrust bearing 29 to the piston rod 30 of a hydraulic piston and cylinder assembly 31. The piston rods 30 are inter-connected by cables 54 and sheaves 52 so that when each piston rod moves forwardly it draws the other one rearwardly When one of the screw impellers 28 is in the rearward position shown in Fig.1, in which it is underneath a hopper 45 common to the two pump units, it delivers concrete from the hopper to the forward part 48 of its cylinder 25. Subsequently a valve is operated to cause a hydraulic pump driven by the engine 15 to deliver hydraulic fluid to the hydraulic ram 31 of the rearward impeller 28, causing it to move to the forward position and the other impeller 28 to move from the forward position to the rearward position. The forwardly moving impeller 28 acts not only as an impeller but also as a piston to pump the concrete from the forward part 48 of the corresponding cylinder 25 into the common manifold 49, a hinged section 55 of the impeller moving rearwardly into the position shown during the forward stroke to form the front of the impeller into a piston head. As the concrete moves into the manifold 49, it moves a flap valve 50 to close off the other cylinder 25. The cycle is then repeated with the other impeller 28. Further screw impellers 64, 65 driven from the shaft 22 via a shaft 59 and a universal coupling 61 at a higher speed than the impellers 28 assist in clearing the concrete from the manifold 49 into a discharge conduit 58. The pump is mounted on a two-wheeled trailer.
Patent GB-1379032-A (GB)
Title: Triggering circuits
IPC: H03K3/2897
Filed: 1971-12-09
Abstract: 1379032 Bi-stable circuits HEWLETTPACKARD CO 9 Dec 1971 [10 March 1971] 57242/71 Heading H3T A switch T31 conducts in response to a first level of an input signal 35 to switch a bi-stable such as T12, T13, T14 whose output enables a second bi-stable T17, T18, T19 to respond to operation of a switch T32 responsive to a second level of the input 35. T11, T12 and T15, T16, T17 constitute respective OR gates for the bi-stables, T11 and T16 receiving a normally high reset signal which goes low (T1, Fig. 3, not shown), when the circuit is to respond to the input 35. When input 35 turns on T31 (T2), T12 base also goes low and T14 emitter goes low to turn off T15 and to lock T12 off by reciprocal coupling, R26. When input 35 turns T32 on and T31 off (at T3), then T17 goes off and the output goes low, and stays low until the reset signal goes high (at T4). The circuit is for triggering an oscilloscope.
Patent GB-1411443-A (GB)
Title: Naphthalate polyester fibres
IPC: D01F6/62
Filed: 1972-12-12
Abstract: 1411443 Naphthalate polyester fibres TEIJIN Ltd 12 Dec 1972 [13 Dec 1971] 57335/72 Heading B5B A filament, fibre or yarn consisting of a naphthalate polyester containing at least 85 mol. per cent of ethylene-2,6-naphthalate units and having an intrinsic viscosity (in a 6 : 4 mixture of phenol and o-dichlorobenzene at 35‹ C.) of 0À45 to 1À0, has a diffraction intensity ratio (R) between a Bragg reflection angle 20= 18À7 degrees and 20 = 15À6 degrees, as determined by X-ray diffraction, of 1À73 to 5À00. The tenacity is at least 4À4 g./de., the elongation is 11 to 40%, the toughness at least 21À5 and the melting point at least 275‹ C. The tenacity retention on treatment for 6 hours at 150‹ C. with wet heat is at least 60% and the dye exhaustion with a disperse dye is at least 40%. The fibre is produced by melt spinning the polyester through a spinning orifice having a crosssectional area of 0À049 to 3À14 mm.<SP>2</SP> at a temperature defined by the equations where T is the spinning temperature (‹ C.), [#] is the intrinsic viscosity and A is the crosssectional area (mm.<SP>2</SP>) of each spinning orifice. The draft ratio is 50 to 20,000 and is defined by the equation where W is the take-up speed and D the draft ratio. The filaments may be woven, knitted or felted to form a fibrous cloth or sleeve and heattreated (allowing not more than 15% shrinkage using a tenter) at 205‹ C. to melting point, such that where T=temperature, t=time. The applications are in carpets, tyre reinforcements, filters, V-belts, flat belts, conveyer belts, hoses, vehicle hoods, overshoes, stuffing materials, and electrical and thermal insulators. The cloth may be laminated with organic films, paper, glass, asbestos or mica. Varnish, anti-oxidant or fire retarding agents may be incorporated. The varnish may be of the alkyl, polyurethane, epoxy, acrylonitrile, silicone or heterocyclic type. The naphthalate polyester may be copolymerized with compounds having one or more ester forming functional group, which may be functional derivatives of phosphonic, phosphonous, phosphoric or phosphorous acid, or halogenated alcohols. Many examples of comonomers are listed in the complete Specification.
Patent GB-1317037-A (GB)
Title: Apparatus for impregnating corrugated cardboard
IPC: D21H23/30
Filed: 1970-12-03
Abstract: 1317037 Apparatus for impregnating corrugated cardboard BOISE CASCADE CORP 3 Dec 1970 [9 Feb 1970] 57477/70 Heading D1L In the impregnation of corrugated cardboard by supplying an impregnant from a stationary supply adjacent one edge of a longitudinally travelling board and drawing this through the flutes of the board by a stationary vacuum device adjacent the opposite edge of the board, means are provided for preventing lateral displacement of the board towards the suction means during the impregnation step. As described, a pair of endless belts 56, 66 is arranged between the suction and impregnating devices 96, 94, the cardboard 16 passing between the belts in sandwich fashion. Creation of a vacuum in the cardboard draws the belts into sealing contact with the board. The belts are prevented from lateral displacement by ribs on their backs which engage grooves in their driving rollers. These rollers may be accurately positioned by screw thread adjusters. The suction and impregnating devices each comprise a channel shaped member 96, 94 which engages an edge of the board, and lateral adjustment is provided by mounting them on sliding members 90 in a fixed frame, movement being effected hydraulically by pistons 96-102. The whole belt and impregnating/suction unit may be mounted for movement between an operative and inoperative position. A seal may be provided at the edges of each channel, comprising a pair of, e.g. plastic strips, between which the board runs, one strip being spring biassed toward the other (Figs. 8-10, not shown). The channels may be built up from a plurality of sections, and in the case of the impregnating channel, a first set of openings therein is connected, via valves, to an impregnant supply and a second set, downstream, is connected to supply hot air. The vacuum circuit on the other edge may include an impregnant recovery device. In one embodiment a - stream of impregnant is passed continuously through the impregnant channel and is drawn as required into the board; alternatively the impregnant may be positively blown into the board, or supplied as a dispersion from turbulence jets. Both suction and impregnating channels may be heated, e.g. by passing a fluid through internal passages. In one arrangement the channels form complete impregnating and suction units which are laterally movable as a whole on hydraulic pistons. Long lists of suitable impregnants are given, e.g. waxes and polymers. Reference has been directed by the Comptroller to Specification 1243689
Patent GB-1267667-A (GB)
Title: Improvements in valve positioners
Inventor: KAY JOHN BARTON
IPC: F16K37/00
Filed: 1968-12-05
Abstract: 1,267,667. Controlling position. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 2 Dec., 1969 [5 Dec., 1968], No. 57742/68. Heading G4H. The position of a valve stem 12 is controlled by means of a stepping motor 19 and a variably coupled transformer. Control pulses from a computer causes the stepping motor 19 to move coils 17 of the variably coupled transformer relative to its core 16. This causes an error signal to be transmitted along line 21 to amplifier 14. The count from amplifier 14 feeds motor 13 and drives it so that the valve stem 12 and core 16 are displaced in a manner to reduce the error signal.