baber/WOPTO huggingface dataset:
Patent GB-1536128-A (GB)
Title: Conveyor systems
IPC: B61B10/02
Filed: 1975-12-05
Abstract: 1536128 Power and free conveyers AMERICAN CHAIN & CABLE CO Inc 5 Dec 1975 [6 Dec 1974] 49975/75 Heading B7L A power and free conveyer system comprises first and second track sections 21, 27; carriers 15 for movement along the track sections and each having first, second and third pusher dogs 24, 30 and 31 respectively; a conveyer chain 10 adjacent the first track section 21 and having longitudinally spaced pusher members 13 for engagement with the dogs; each carrier normally being propelled by engagement of a pusher member 13 with the first dog 24, the track sections 21 and 27 being provided with parts formed by upper flanges 33 which extend toward and engage portions 32 of the second and third dogs 30, 31 to hold these dogs 30, 31 out of the path of the pusher members 13 except where recessed at 34 in a transfer zone between the track sections; whereby when a carrier enters the transfer zone, a pusher member disengages from the first dog 24 and a succeeding pusher member engages the second or third dog to push the carrier between the track sections. The second and third dogs 30, 31 are gravity biased to pivot upwardly into an operative, engageable position when a recess 34 is reached, so that the conveyer 10 propels the carrier to a position in which a pusher member of a second conveyer 29 can engage the first dog 24 to drive the carrier along the second track section 27. As shown, the track sections meet at a junction provided with a switch tongue 28, but in another form, Fig. 3 (not shown), the two sections are parts of a single, continuous track equipped with respective conveyer chains (41, 42) running at different speeds.
Patent GB-1140734-A (GB)
Title: Sag resistant mineral wool boards
IPC: C04B26/28
Filed: 1966-11-09
Abstract: 1,140,734. Fibrous compositions. JOHNSMANVILLE CORP. 9 Nov., 1966 [30 Dec., 1965], No. 50096/66. Heading C3N. [Also in Division D2] A fibrous composition comprises mineral wool fibres, clay, not more than 12% of a binder consisting of 3 to 9% (by weight of total composition) of starch and 3 to 9% of thermoplastic wood resin having a softening point of at least 160 F. The composition may be moulded to form a sag-resistant board.
Patent GB-1383783-A (GB)
Title: Zoom lens
IPC: G02B15/22
Filed: 1972-10-31
Abstract: 1383783 Zoom lens mount PONDER & BEST Inc 31 Oct 1972 [1 June 1972] 50174/72 Heading G2J The subject-matter of this Specification is the same as that described in Specification 1383782 but the claims differ, relating mainly to the optical data.
Patent GB-1144104-A (GB)
Title: Plasticised and stabilised composition based on chlorine containing vinyl polymers
IPC: C08L27/00
Filed: 1967-11-06
Abstract: 1,144,104. Chlorine - containing polymerepisulphide polymer compositions. SOLVAY ET CIE. 6 Nov., 1967 [10 Nov., 1966], No. 50328/67. Heading C3P. A composition comprises (a) a chlorine-containing polymer of a vinyl compound, (b) a plasticizer, and (c) a stabilizer system comprising (1) a heat stabilizer and (2) a polymer of formula (R-S) n -(R<SP>1</SP>-S) m  obtained by polymerizing a compound or compounds containing an epithio group, where R and R<SP>1</SP> are divalent hydrocarbon radicals and the sum of the integers n and m is at least 40. The weight ratio between (1) and (2)being between 0À5 and 50, the amount of (c) being 0À1 to 10 parts by weight per 100 parts of (a). Many conventional plasticizers and heat stabilizers are mentioned, while the chlorine-containing polymers are suitably vinyl chloride polymers, which may be after-chlorinated. In the examples, component (a) is polyvinyl chloride or after-chlorinated polyvinyl chloride, component (c) (2) is ethylene sulphide homopolymer, propylene sulphide homopolymer, or ethylene sulphide-propylene sulphide copolymers, while other components are stearyl alcohol, montan wax, dibasic lead phthalate, dibasic lead stearate, dibutyl tin mercaptide, epoxidized soya oil, tribasic lead sulphate, lead stearate, ditridecyl phthalate, 2 - mercapto - benzimidazole, diisooctyl phthalate, calcium laurate, zinc laurate, chlorinated polyethylene, cadmium stearate, ethylene/ vinyl acetate copolymer, 3,5-epoxy-6-methyl. cyclohexyl - methyl - 3,4 - epoxy - 6 - methyl hexanoate, pentaerythritol, and polymeric polysulphides.
Patent GB-1204628-A (GB)
Title: Circuit arrangements for automatic sheet feed control
Inventor: LEIN WERNER
IPC: B65H7/18
Filed: 1968-10-24
Abstract: 1,204,628. Feeding sheets. DRUCKMASCHINENWERK PLANETA VEB. 24 Oct., 1968, No. 50479/68. Heading B8R. A control circuit for a sheet feed device comprises two sheet detectors, for sensing the presence of a sheet at the lay marks of a printing machine, connected to a logic circuit which switches off the feeder and blocks the feed in the event of a difference in the signals from the detectors (misaligned or slanting sheet), switches off the feeder and blocks the feed in the event of no sheet at the detectors and permits continued operation of the feeder with the feed unblocked if a correctly registered sheet is detected. The detectors, not shown, are each coupled via an individual amplifier 1, 2, to the input means of an anticoincidence element 10. A source of timing signals Xr controls the amplifiers and the output of the element 10 is coupled via AND-gate 11 to means for switching off the feeder. A signal X 1  is fed to gate 11 when the feeder is operating. Indicator device 13, 14 provides an output signal when the detectors sense the absence of a sheet which signal is fed to OR-gate 12 together with the signal from AND-gate 11. A further OR-gate 5 is connected to the detectors and a third input of this gate is connected to an output of OR-gate 12, an output of gate 5 is connected to means for blocking the sheet feed.
Patent GB-1282628-A (GB)
Title: Computer memory protection
Inventor: CRAGON HARVEY GEORGE
IPC: G06F12/14
Filed: 1969-10-15
Abstract: 1282628 Digital computers; memory protection TEXAS INSTRUMENTS Inc 15 Oct 1969 [31 Dec 1968] 50705/69 Headings G4A and G4C A memory protection system for a digital computer includes upper and lower memory bounds registers and comparison means for comparing a requested memory address with the memory bounds. The bounds are for data to be read, data to be written and/or instructions to be fetched for execution. The computer system (Figs. 1 and 2, not shown).-This comprises a central processing unit 10 executing user programs and having its own memory and one or more peripheral processing units 11, as described in Specification 1,278,101. Memory is provided for all units by thin film storage stacks 12-15, disc stores or drums, and tape units in decreasing levels of availability. Also provided is a card reader, a punch unit, a line printer, and a twin cathoderay tube keyboard unit by which an operator can perform hardware and software checks or interrupt the program at any point. A memory control unit 18 controls the thin film stacks and provides gating, mapping and memory protection as required. It also controls the discs through a wired in program channel unit and is connected to a ppU and thence to the other stores, there preferably being a priority system for accessing the MCU 18. Each unit 11 comprises 8 virtual processors, i.e. 8 digital computers without individual execution units which share a common execution unit. Operation.-The unit 10 executes user programs on a multi program basis and the unit 11 services requests by the user programs being executed and schedules the sequence of user programs using context switching. Memory requests Fig. 4.-A request comprises a first group of ID bits to identify the request e.g., read, write, or instruction execute, a second group of bits identifying a memory address and a third group of bits in the form of data supplied to or from memory. The three groups pass from unit 10 via respective lines 70 to 72 to AND gates 76-78 and the memory 12-15. Each AND gate is enabled by a different situation (read, write, or execute instruction) and is connected to a comparator which in turn is connected to two bounds registers respectively holding the upper and lower address bounds for that condition. The bounds are loaded by the unit 11, the comparator compares the memory address bits received with the upper and lower bands, and, if the address is within the bounds, the memory 12-15 is enabled via OR gate 84. Units 120, 124, 125 determine whether the comparison is to be internal bounds or external bounds.
Patent GB-1324340-A (GB)
Title: Vibratory drive systems
IPC: G04C3/08
Filed: 1970-10-27
Abstract: 1324340 Clocks and watches OMEGA LOUIS BRANDT & FRERE S A 27 Oct 1970 [13 Nov 1969] 50936/70 Heading G3T An arrangement for obtaining a rotary drive for a timepiece from an oscillating body 7, Fig. 1, comprises a ratchet wheel 9 and pawls 10, 11 all of which are carried by the body 7, the ratchet wheel being movably mounted relatively to the pawls so that it is stepped around thereby when the body 7 changes its direction. The ratchet wheel 9 is coupled magnetically to a wheel 12 which is part of the timepiece train and has a fixed axis of rotation 13. The body 7 is carried by a vibratory arm 6 and includes a magnetized hole shoe 1. Vibrations are maintained by co-operation with a fixed coil 2 which is mounted on a core 3 having an electric oscillator circuit in its interior. A similar pole shoe 1 may be carried by a second vibratory arm 6 in a symmetrical arrangement. Preferably the body 7 carries an hermetically sealed sleeve 37, Fig. 4, on the base 36 of which are mounted a ratchet wheel 33 and pawls 31, 32. The sleeve 37 may be filled with a gas or liquid such as silicone oil. The position of pawl 31 may be adjusted by rotating an eccentric screw 41 to deflect resilient arm 34. An alternative method is shown in the case of the pawl 32 which is carried by a frictionally mounted arm 35. The ratchet wheel 33 has a hub portion 46 which is magnetized to co-operate with a wheel positioned outside the sleeve 37. The hub portion 46 contains a hole which is larger than the diameter of a retaining pin (48), Fig. 5 (not shown) to permit the necessary movement of the wheel 33. The ratchet wheel may alternatively be fixed to an axle (64), Fig. 7 (not shown) which is mounted with play and the displacement of the wheel may be limited by stops in the form of sleeve walls (71, 72), Fig. 8 (not shown).
Patent GB-1118137-A (GB)
Title: Improvements in stackable units
IPC: A47C1/124
Filed: 1965-12-01
Abstract: 1,118,137. Connecting furniture in rows; nesting furniture. M. R. YEOMANS. 1 Dec., 1966 [1 Dec., 1965], No. 51095/65. Addition to 1,025,717. Headings. A4H and A4U. The. underframe of a stackable and linkable unit, such as a chair, comprises front and back pairs of legs B, D each formed; of an inverted U-member lying in a plane inclined to the vertical. The legs are spaced apart by members C and are in planes inclined toeach other so that the legs are separated to a greater extent at one side thanat the other, and the tops b, d at the side where the legs are nearer together are bent towards each other so that the more widely spaced legs of one chair extend over the inwardly bent legs of an adjacent chair for linking in. a row. In a modification the horizontal portions of the transverse members C are bent and welded together to form a rectangular supporting structure for a combined moulded seat and back.
Patent GB-1126663-A (GB)
Title: Improvements in or relating to semiconductor devices and circuits
Inventor: SANDBANK CARL PETER
IPC: H03F3/10
Filed: 1964-12-16
Abstract: 1,126,663. Semi-conductor circuits. STANDARD TELEPHONES & CABLES Ltd. 9 Dec., 1965 [16 Dec., 1964], No. 51167/64. Heading H3T. [Also in Division H1] A circuit includes a body of semi-conductor material 10, of the type exhibiting the property that when it is subjected to a steady electric field exceeding a critical value, the resultant current flow contains an oscillatory component of frequency determined by the transit time of space charge instabilities through the material (e.g. the GUNN effect); a current source 12 producing a steady electric field between contacts 11 less than the critical value; and an input signal circuit which, in response to an input signal, raises the electric field above the critical value for a time shorter than the transit time to cause the current through the material 10 to undergo a single excursion from its steady value. The material may be a III-V- type semi-conductor, e.g. n-type gallium arsenide or indium phosphide. Fig. 2 (not shown) depicts a modification in which the input signal is fed to a third electrode insulated from the material adjacent a constricted part of the material between contacts 11, variation in the potential of this electrode controlling the depth of an associated depletion layer and therefore the local electric field. The current source 12 may be pulsed to reduce power dissipation in body 10. The circuit may be used as an amplifier and will handle variable frequency pulses or oscillatory signals, which may be frequency modulated. Fig. 1 shows a transmitter arrangement for a communications link, an input signal 15 modulating the frequency of oscillator 14.
Patent GB-1324041-A (GB)
Title: Method of producing carbon fibres
IPC: D01F9/22
Filed: 1970-10-29
Abstract: 1324041 Carbon and graphite fibres NIPPON CARBON KK 29 Oct 1970 [31 Oct 1969 (4)] 51552/70 Heading C1A Carbon fibres, which expression includes graphite fibres, having stated tensile strength and Young's modulus are obtained by drawing acrylic fibres, i.e. fibres derived from at least 85% acrylonitrile and up to 15% of other acrylic monomers, in a saturated steam bath having a temperature above 100‹ C. and below 160‹ C. to obtain acrylic fibres having a dry tensile strength of not less than 6À0 g./d. and an elongation of less than 15%; heat treating the acrylic fibres so obtained in an oxidizing atmosphere at a temperature of lower than 300‹ C. and carbonizing the resultant fibres in a non-oxidizing atmosphere by increasing the temperature from the stated oxidizing temperature to a temperature of 2000-3000‹ C. A preferred drawing temperature is between 100‹ C. and 130‹ C. and the heat treatment may be effected under a tension of not less than 40 mg./d. Before being treated by the process of the present invention the acrylic fibres may have been drawn to 3 to 30 times their original length, and during the process the fibres may be further drawn to 1 to 6 times their length.
Patent GB-1086556-A (GB)
Title: A pressure distributing system for the wheel suspension of vehicles
IPC: B60G21/06
Filed: 1964-12-22
Abstract: 1,086,556. Equalizing loads on wheels. MASCHINENFABRIK AUGSBURG-NœRNBERG A.G. Dec. 22, 1964 [Dec. 23, 1963; June 18, 1964]. No. 51986/64. Heading B7D. In a load equalizing system of a vehicle comprising four cylinders 2 each containing a piston connected to a wheel or wheel group, the space on one side of each piston is connected to the corresponding space of the adjacent wheel longitudinally of the vehicle and the space on the other side of each piston is connected to the corresponding space of the transversely opposite wheel of the vehicle, the arrangement being such that one diagonally opposite pair of plungers and wheels moves an equal distance but in the opposite sense to the other diagonally opposite pair. The cylinders are pivoted to the vehicle frame and the pistons connected to the wheels through helical, rubber, torsion bar or pneumatic springs and the vehicle height is preferably adjustable by withdrawing hydraulic fluid from the cylinder on one side of each piston and injecting fluid into the cylinder on the other side from reservoirs 7 through valves 8. In developments, at each end of a vehicle a single transverse cylinder is provided containing two pistons. (Fig. 3, not shown) or a single cylinder 2a containing one piston 1a connected to both wheels, Fig. 4 For use with a two-axle bogie pistons are provided for each bogie wheel and to permit pivoting of the bogie about a transverse axis A the ducts interconnecting the cylinders of the transversely opposite pairs of wheels, or the centre chambers 10, 13, Fig. 7, when combined cylinders, are used, are interconnected by a duct 15b, while the other chambers of the longitudinally adjacent cylinders are interconnected by ducts 5a and connected by ducts 16, 17 with the corresponding chambers of the other vehicle wheel cylinders.
Patent GB-1067927-A (GB)
Title: Reciprocating compressors and pumps
IPC: F04B35/00
Filed: 1965-12-09
Abstract: 1,067,927. Hydraulically actuated reciprocating pumps and compressors. MASCHINENFABRIK BURCKHARDT A. G. Dec. 9, 1965 [Dec.22, 1964], No. 52299/65. Headings F1A, F1N and F1P. The double-acting piston 9 actuating the plungers 10 of a pump or compressor is reciprocated hydraulically from the double-acting motor piston 2. The piston 2 is reciprocated from a crank 3 at one end of its cylinder 1 by means of a connecting rod or rods 5 acting on a crosshead 4 at the other end of the cylinder. Actuating liquid is fed by a feed pump 12 through the cylinders 1 and 7 via non-return valves 13 and 14, a pressure control valve 15 and a cooler 16. To prevent excessive strokes of piston 9 passages 17 are provided to by-pass actuating liquid. Enlargements 19 entering recesses in the end walls of the cylinder brake the movement of piston 9. The cylinders 1 and 7 are connected by members 8 allowing relative expansion.
Patent GB-1286573-A (GB)
Title: Electric motor circuit
Inventor: BACON JAMES LYDELL
IPC: H02P7/06
Filed: 1970-11-05
Abstract: 1286573 Automatic control of speed INTERNATIONAL BUSINESS MACHINES CORP 5 Nov 1970 [18 Nov 1969] 52611/70 Heading G3R. A D.C. motor and a first variable impedance (transistor TX1) form a first series circuit in parallel with a second series circuit comprising a source of reference potential, a fixed impedance 10 and a second variable impedance (transistor TX2), the value of both variable impedances being adjusted by control means (transistor TX3) responsive to changes in back e.m.f. measured between the junctions of the variable impedances with their associated circuits. Effectively the arrangement comprises a bridge circuit, any unbalance being detected by the control transistor TX3 which restores balance so that the back e.m.f. (and hence the motor speed) corresponds to the reference potential, the fixed impedance 10 being a multiple of the motor armature resistance RA so as to provide compensation for armature voltage drop. The ratio of 10 to RA is repeated in emitter resistors 11, 13 in the other arms of the bridge. The reference source comprises a further transistor TX4 which, as shown, is controlled by a potentiometer 5 connected across a Zener diode 15, but alternative arrangements, Figs.6...8 (not shown) have switches to select pre-set voltages or a chain of three potentiometers in series across a Zener diode. The arrangement inherently provides temperature compensation. A capaciter C determines the response time of the system. Typical performance figures are given.
Patent GB-1150200-A (GB)
Title: Process for Making a Metallic Bracelet and Bracelet obtained thereby.
IPC: A44C5/00
Filed: 1967-11-20
Abstract: 1,150,200. Making metallic bracelets. MOBLOT MFR. REN MARTHALER. 20 Nov., 1967 [30 June, 1967], No. 52680/67. Heading B3A. [Also in Division A3] A metallic band is made by forming corrugated surfaces on two metallic bands 1, 2 of two different metals, the bands being superimposed so that the corrugations interengage, the bands are then compressed to the form shown. More than two bands may be combined in this way. The bracelet may be made from steel, with a superimposed layer of gold, brass, aluminium or steel.
Patent GB-1247915-A (GB)
Title: Method of producing thread-reinforced laminated sheet material
Inventor: PICKER HEINZ
IPC: D21H27/34
Filed: 1968-11-07
Abstract: 1,247,915. Reinforced laminated sheet or strip. ZELLSTOFFABRIK WALDHOF. 7 Nov., 1968 [10 Nov., 1967], No. 52819/68. Heading B5N. A method of producing a laminated sheet or strip reinforced with threads, fabric or fibres from two layers of material, especially paper, comprises providing the inner surface of at least one of the layers with a film-forming aqueous plastics dispersion and introducing the reinforcement between the layers as heat and pressure are applied to this region. The plastics dispersion may be derived from an acrylic acid ester copolymer which may include vinyl compounds or from a vinylidene or vinyl chloride and may be applied by drum coating or air brushes.
Patent GB-1502919-A (GB)
Title: Clothes drier
IPC: D06F58/38
Filed: 1975-12-29
Abstract: 1502919 Clothes dryer HITACHI Ltd 29 Dec 1975 [24 March 1975] 53033/75 Heading F4G A clothes drier comprises a rotatably mounted drum 5 in a cabinet 1, drive means 15 for rotating the drum and for actuating a blower 21 for feeding air from outside the cabinet through the drum to an exhaust 38, and electric resistances, e.g. PTC thermistor(s) 24, for heating the air, such that a decrease in the quantity of air traversing the drier results in a decrease in the heat energy produced, and vice versa. Negative temperature coefficient thermistors (69, 70), in a circuit Fig. 5 (not shown) located to detect respectively atmospheric and exhaust air temperatures, act to switch off the heater 24 at a predetermined temperature difference.
Patent GB-1201962-A (GB)
Title: Process for the production of a linear polyurethane
IPC: C08G18/00
Filed: 1967-11-24
Abstract: 1,201,962. Linear polyurethanes. GLANZSTOFF A.G. 24 Nov., 1967 [2 Dec., 1966], No. 53516/67. Heading C3R. Linear polyurethanes having a particular viscosity are prepared by forming a pre-adduct having terminal NCO groups by reacting a polymeric diol with a diisocyanate which contains at least one aromatic radical and further reacting the pre-adduct in the presence of a solvent after or during its formation with a mixture of chain extenders comprising 0À15 to 0À85 mol. of one or more diamines and/or hydrazine and/or hydrazine derivatives and 0À1 to 0À8 mol. of a dialkanolamine per mol. of pre-adduct, the sum of the mols. of the chain extenders being smaller than the number of mols, of pre-adduct, and stopping the reaction by adding a monoalcohol when the required viscosity is reached. The pre-adduct is prepared from conventional polymeric diols, e.g. polyethers and polyesters and aromatic diisocyanates and is added to an inert organic solvent, the chain extenders and the monoalcohol being added to the mixture so formed suitably dissolved in the same solvent. Exemplified chain extenders are 1,3-diaminopropane, ethylene diamine, an isomeric mixture of 2,2,4- and 2,4,4-trimethyl-hexamethylene diamine, 1 - amino - 3 - aminomethyl - 3,5.5- trimethyl - cyclohexane, diethanolamine and diisopropanolamine. The monoalcohol may be methanol or ethanol. The pre-adduot may be prepared in the presence of a low M.W. diol. Suitable solvents are toluene and dimethyl - formamide.
Patent GB-1401489-A (GB)
Title: Filament crimping devices
IPC: D02G1/02
Filed: 1972-11-20
Abstract: 1401489 False twist crimping; twist stopping SPINNER OY 20 Nov 1972 [19 Sept 1972] 53560/72 Headings DID and D1F In a false twist crimping machine comprising a first filament drawing device 2, a twist stopping device 3, an oven 4, a false twister 5, a second filament drawing device 6 and a wind-up means 7, the twist stopping device 3 comprises a rotatable annular groove 9 in which the filament 1 is gripped to stop twist travelling back to the drawing device 2. The groove is preferably provided on the periphery of a roller 8 which is preferably driven by the drawing device 2 by a belt such that the speed of the filament in the twist stopping device at least equals the speed of the filament in drawing device 2. The groove 9 in the device 3 is preferably formed of two O- rings 10, 11 of rubber positioned on the roller. It is also preferred that the filament runs in the groove 9 at least a distance equal to “ the length of the groove.