baber/WOPTO huggingface dataset:
Patent GB-1452999-A (GB)
Title: Synchronizer circuits
IPC: H03K5/13
Filed: 1974-01-10
Abstract: 1452999 Signal shaping and synchronizing Circuits HITACHI Ltd 10 Jan 1974 [12 Jan 1973] 01289/74 Heading H3T In a synchronizer circuit for converting an asynchronous input signal Vin (Fig. 2b, not shown) applied to an input of a first gate 1 into a sharper edged synchronous signal Vout an input of a second gate 2 is connected to the output of the gate 1, a bi-stable flip-flop 3, 4 receives the outputs of the gates 1 and 2 which are enabled by first clock pulses #1 and the output of the bi-stable is read out by second clock pulses #2 shifted in phase and of opposite polarity to the first clock pulses #1. As shown NAND gates 1 and 2 provide two complementary outputs A, B, Fig. 2a, representative of the varying level of the asynchronous input signal in synchronism with the clock signals #1. The bi-stable 3, 4 detects a given threshold point (at a, b) between the two complementary signals so as to provide an output signal through a transfer gate M12 and the output changes at the threshold point (a, b) and in synchronism with the clock signals #2. Nand gates 1-4, Fig. 2a, may be formed of bipolar transistors or as unipolar transistors as shown in Fig. 2c. Unipolar transistors are preferred for power consumption and integration reasons. The output from the transfer gate M13 is stored on load capacitance CL. The synchronizer may be used to synchronize an electrical signal obtained from the movement of a rotary drum of a printer of an electronic desk calculator and to send the electric signal to the calculator.
Patent GB-371341-A (GB)
Title: Improvements in and relating to vacuum braking apparatus
IPC: B60T13/46
Filed: 1931-01-14
Abstract: 371,341. Fluid-pressure b r a k e s. BROWN, D. F. and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Jan. 14, 1931, No. 1322. [Class 103 (i).] Railway vacuum brakes comprise a driver's valve which produces a reduction of vacuum in the train pipe the extent of which depends only upon the interval of time during which the valve is maintained in application position. The driver's valve controls a relay valve 1 comprising a large diaphragm 5, a small diaphragm 10, and a valve 2 controlling an atmospheric opening in the train pipe. In running position the exhauster 14 exhausts the train pipe 3, the application chamber 8 through a cavity 18 in the driver's valve 12, and a chamber 6 below the larger diaphragm 5 of the relay valve 1. A chamber 11 above the smaller diaphragm 10 is connected to atmosphere through ports 22, 23 in the driver's valve. To apply the brakes the driver's valve is moved to connect the ports 19, 22 by a cavity having a restricted atmospheric port which thus connects the chambers 8, 6, 11 to atmosphere and allows the valve 2 to rise and connect the train pipe to atmosphere. The driver's valve can then be moved to lap position in which a further cavity connects ports 19, 22 and isolates the chambers from the atmosphere, and allows the valve 2 to close, or in practice to maintain sufficient opening to balance the fall of pressure produced by the exhauster 14. Increase of train pipe pressure due to leakage causes the valve 2 to close. The brakes may be released in steps by alternatively placing the driver's valve in release position shown in the Figure and the lap position. In emergency position of the driver's valve the train pipe is connected directly to atmosphere by a large port in the driver's valve and the reservoir 8 is also connected to atmosphere by a port in the driver's valve. An emergency valve device may be provided by connecting the chamber 6 to a deadman's valve for admitting air rapidly to this chamber and fully opening the valve 2. A restricted port is then provided between the chamber 6 and the pipe 7.
Patent GB-1421412-A (GB)
Title: Code-reading systems
IPC: B61B1/00
Filed: 1973-02-14
Abstract: 1421412 Conveyer control system RAPISTAN Inc 14 Feb 1973 [14 Feb 1972] 1345/75 Divided out of 1421411 Heading B7N The description is the same as that of Specification 1,421,411, but the claims are directed to the apparatus for initiating a function in response to reading the code card.
Patent GB-794713-A (GB)
Title: A setting device for the rack cutters of a gear cutting machine
IPC: B23F23/12
Filed: 1957-01-14
Abstract: 794,713. Gear cutting. MAAG GEARWHEEL & MACHINE CO., Ltd. Jan. 14, 1957 [Jan. 13, 1956], No. 1352/57. Class 83 (3). A gauging-device for setting two geargenerating rack-cutters 1, 2 relatively to each other, comprises first and second stop-surfaces 4a, 5a to be abutted by the cutting edges, and a third stop-surface 6 to locate the cutters longitudinally. One cutter cuts the gear teeth to depth on one stroke of a gear-generating machine and the tool-holder then rocks through an angle # to allow the second cutter to cut the flanks on the return stroke. The surface 4a is formed on a fixed block 4 and the surface 5a on a wedge block 5 which is adjusted longitudinally against a scale 3b and pointer 10 to a setting marked on one or both cutters. With the cutters held against the stop surfaces 4a, 5a, 6, bolts 7 are tightened and the cutter assembly is correctly set for mounting in the machine tool holder.
Patent GB-1500613-A (GB)
Title: Liquid heating system
IPC: F24D17/00
Filed: 1975-01-13
Abstract: 1500613 Solar heaters; liquid heating apparatus ENERGY CONSULTANTS Ltd 13 Jan 1975 [17 Jan 1974] 1375/75 Headings F4U and F4A Liquid, e.g. water for a domestic hot supply, is heated by a source of heat which is only occasionally available, e.g. a wet back boiler or by solar energy in a radiant energy collector 1 and passed by a pipe 5 to a storage cylinder 4 from which it is forced out to a header tank 3 by the pressure of incoming mains water passing to the collector through a line 8 having a valve 2 responsive to the temperature of the liquid within the collector. The header tank comprises a first ball-cock 7 connected to the mains supply 6 to retain a lower, minimum level therein, and a second ball-cock 11 to maintain an upper level in the tank, the ball-cock 11 being in the junction between the mains supply 6 and pipe 8 to override the valve 2. The collector comprises a planar array of metal pipes formed in sinuous pattern which may be secured to one or between two blackened metal plates, or within grooves formed within the plates. An electric immersion heater is positioned in the cylinder 4 and a flow restrictor valve 15 is placed in the pipe 5 between the collector and cylinder.
Patent GB-1567832-A (GB)
Title: Fluid flow control apparatus
IPC: B62D5/06
Filed: 1977-01-13
Abstract: An improved fluid flow control apparatus is utilized in association with a vehicle having a single variable displacement pump for supplying fluid to both a steering apparatus and an auxiliary apparatus. The fluid flow control apparatus includes a pair of variable size orifices one of which is associated with the steering apparatus and the other of which is associated with the auxiliary apparatus. Upon actuation of either the steering or auxiliary apparatus, the size of the associated orifice is varied to provide a variation in a load signal and effect a change in the displacement of the pump. During simultaneous operation of both the steering and auxiliary apparatus, a priority valve assembly is utilized to block fluid flow to the auxiliary apparatus if the fluid output from the pump is insufficient to satisfy the demand for steering fluid. The priority valve assembly includes a main valve member with an internal chamber in which a secondary valve member or piston is disposed. Upon initiation of a steering operation with the auxiliary apparatus in an inactive condition, the secondary valve member moves toward a closed position. If at this time the demand for steering fluid is sufficiently great, the secondary valve member blocks fluid flow to the auxiliary apparatus.
Patent GB-1164382-A (GB)
Title: Luggage Carriers for Cycles.
IPC: B62J7/00
Filed: 1967-01-10
Abstract: 1,164,382. Luggage carriers. ESGE-MARBY G.m.b.H. & CO. 10 Jan., 1967 [18 March, 1966], No. 1403/67. Heading B7J. A luggage carrier 1 for a cycle comprises a zinc-coated metal grid onto which is fitted a smooth moulded plastics sheathing member 4 slotted in its lower surface so as to accommodate and resiliently embrace longitudinal and transverse bars of the grid. In an embodiment, the longitudinal and transverse bars are in the same plane but may be above or below each other. A part 9 of the sheathing member 4 may be engaged by a ring carried on one end of a strap which may be tensioned to hold an article to the carrier and which extends through a slot in a plate insertable between the mounting plate 11 and the transverse plate of a cycle fork.
Patent GB-432082-A (GB)
Title: Improvements relating to coin-freed automatic vending machines
IPC: G07F5/04
Filed: 1935-01-16
Abstract: 432,082. Coin - freed apparatus. JENNINGS, H. W. K., 51, Chancery Lane, London.-(A E G-Fahrkartendrucker Ges. ; Hennigsdorf, Osthavelland, Germany.) Jan. 16, 1935, No. 1531. [Class 27] Coin-action weight, mechanical-connection and multiple coin.-In coin-freed vending apparatus adapted for operation by the simultaneous insertion of several coins differing in size and delivering an appropriate number of articles, a power reciprocated slide at the end of the coin insertion shoot feeds the coins one at a time to mechanism which adds their value and releases or actuates the vending apparatus. As shown, the inserted coins pass down a shoot 3 of rectangular cross-section, its short side being smaller than the diameter of the smallest coin to be used, and come to rest on a platform 18, in a stack facing the slide 15. In passing down the shoot, the coins operate contacts, (not shown), serving to close for a short period the circuit of an electric motor driving a shaft 9 carrying a cam disc 11 having a crank-pin 10. resiliently linked with the slide. As the slide is reciprocated, an edge 16 engages the coins in turn and feeds them through a side opening in the shoot into a discharge shoot 34, the coins being held in engagement with the slide by a spring-actuated arm 13 which relaxes its pressure during the backward stroke by engagement of a raised portion of the cam disc 11. As the coins are fed out of the shoot 3 they engage a spring actuated arm 25 carrying a pawl which steps forward a ratchet wheel 26 an amount appropriate to each coin. A disc 27 rotating with the ratchet wheel 26 has raised parts 28 engageable with an arm 30 which operates or releases the delivery mechanism, so that each time the appropriate coins have been fed past the arm 25 an article is delivered. Several modified dispositions of the shoot and mechanism are described. Returning coins.-The platform 18 is carried by a pivoted arm 19 and may be swung outwardly to release bent or other coins into a return shoot 33 by operation of an external knob.
Patent GB-162049-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M19/08
Filed: 1920-01-17
Abstract: 162,049. Sage & Co., Ltd., F., and Forsyth, A. G. Jan. 17, 1920. Spray carburettors in which fuel issues through the joint or joints between the parts A, B of the choke tube, are provided with a transversely sliding throttle valve D which closes the air passage at the fuel inlet. The leading edge of the throttle valve may be straight, convex, concave or V-notched, and semicircular recesses may be formed therein to obtain various proportions of air to fuel.
Patent GB-383473-A (GB)
Title: Sound- and heat-insulating panel
IPC: C04B20/00
Filed: 1932-01-19
Abstract: 383,473. Compound sheet materials. GRUZELLE, R., 18, Rue Hoche, Courbevoie, Seine, France. Jan. 19, 1932, No. 1617. Convention date, Jan. 23, 1931. [Class 140.] A sound and heat insulating panel formed with a body of long vegetable fibres, such as wood fibres or shavings, agglomerated by a binder, such as cement or plaster, has a facing layer adhering directly to the body without the use of an independent adhesive. The facing layer may comprise a mixture of vegetable fibre and vegetable pulp, such as coarsely pulped wood, or a mixture of mineral fibre with cement or plaster, such as fibro cement, e.g. cement mixed with 5-20 per cent of amianthus fibre. The binder used in the body may comprise 60 per cent calcined magnesia and 40 per cent magnesium chloride.
Patent GB-928637-A (GB)
Title: Process for the preparation of dialkyl isocyanurates
IPC: C07D251/34
Filed: 1962-01-16
Abstract: Dialkyl isocyanurates of formula:-  <FORM:0928637/IV(a)/1> where R is an alkyl group having 1 to 4 carbon atoms are produced by mixing at least one mole of a monoalkyl urea, or mixture of monoalkyl ureas, with one mole of a methylcyclohexanol, tetrahydrofurfuryl alcohol, or a mixture thereof at 150 DEG -250 DEG C., and the product is recovered, e.g. by filtration.
Patent GB-654084-A (GB)
Title: Manufacture of lubricating grease
Filed: 1948-01-19
Abstract: <PICT:0654084/III/1> In the preparation of alkali and alkaline earth metal soap grease by the rapid and uniform cooling of the hot grease, the latter is forced from the heating and mixing zone directly into a cooled zone having a thickness of not more than about 4 inches where it is cooled statically and uniformly for a period sufficient to form a gel structure of desired texture throughout.  The cooling zone may consist of a number of tubes of from 2 1/2 to 3 1/2 inches diameter cooled by air, water, or brine so as to reduce the temperature of the grease from about 400 DEG  of 425 DEG  F. to about 150 DEG  F., the cooling time being from 1/4 to 10 hours.  The grease is then passed to a homogenizer.  The grease may comprise any of the alkali or alkaline earth soaps of any fatty oils or fish oils, whether hydrogenated or not, naphthenic acid, rosin oils, or synthetic or oxidized waxes or free fatty acids, and may be mixed either with any mineral lubricating oil stock or with synthetic oils such as polymerized alkylene oxides or alkyl esters of organic acids.  In particular a major proportion of a mineral lubricating oil, a synthetic lubricating oil (such as 2-ethyl hexyl sebacate), or a mixture of such oils may be incorporated with a minor proportion of a lithium, sodium, or barium stearate, palmitate, or hydroxy stearate, such as lithium hydroxy stearate. Oxidation inhibitors such as N.N1-di-butyl-p-phenylene diamine or tetramethyldiamino diphenyl methane, and corrosion inhibitors such as hexylamine, octylamine, decylamine, dodecylamine, octadecylamine, or an alkyl substituted oxazoline may be added.  In an example, a grease is formed of a mineral oil containing from 7 to 10 per cent lithium stearate, from 0.1 to 5.0 per cent of calcium naphthenate, from 0.1 to 5.0 per cent of an oxidation inhibitor, and from 0.1 to 5.0 per cent of a corrosion inhibitor.  According to the flow diagram, Fig. 1, the hot grease mixture is conducted from a tank 1 through a heat-exchanger 5 to a homogenizer 6, where it is worked at a temperature of about 200 DEG  F., and then pumped through a heater 7 kept at about 400 DEG  to 500 DEG  F.  It then passes into a number of long cooling tubes 10 of the stated diameter, or into annular spaces 23, Fig. 2, or flat tubes 24, Fig. 4, when it remains until it has gelled.  The grease is then discharged to a storage tank 12 from which it is discharged through a homogenizer 13 to packing containers 26.
Patent GB-1111082-A (GB)
Title: Improvements in or relating to air or gas pressure guns
Inventor: VESELY JOSEF
IPC: F41B11/646
Filed: 1965-01-15
Abstract: 1,111,082. Pneumatic gun. BIRMINGHAM SMALL ARMS CO. Ltd. 14 Jan., 1966 [15 Jan., 1965], No. 1845/65. Heading F3C. The figures of this Specification are identical with those of Specification 1,111,081 and the claims relate to a means for preventing the release of the piston 12 after the spring 13 has been compressed whilst the cocking lever 1 is displaced from its inoperative position. The means comprises a safety lever 34 (Fig. 1, not shown) pivoted about the same pin 33 as the pawl 31 and trigger 30 assembly. The safety lever 34 is spring loaded for movement into engagement with the sear 19 when the cocking lever is being actuated, but is displaced away from the sear 19 when the cocking lever approaches its inoperative position by the engagement of an extension 37 of the cocking lever 1 and a projection 35 of the safety lever.
Patent GB-418203-A (GB)
Title: Improvements in and relating to compositions for coating and impregnating paper and the like
IPC: D21H17/22
Filed: 1933-01-20
Abstract: A composition for coating or impregnating materials such as paper, comprises a solution of fibroin and a softening-agent.  The fibroin, as silk, may be dissolved in an ammoniacal metallic salt p  solution, and suitable softening agents are natural, synthetic or chemically modified oils, glycerine, triphenyl phosphate, tricresyl phosphate, chlorinated naphthalene, and esters of polybasic acids.  To augment the body of the composition, a setting-agent may be added, and waxes, gums or resins, preferably saponified, are suitable for this purpose. An ammonium salt may be added, as a fixing-agent, to render the coating water-insoluble.  A stencil sheet may be made by coating Yoshina paper, or a like porous material, with the composition.
Patent GB-894201-A (GB)
Title: Improvements in or relating to automatic change speed transmission devices
Inventor: MILLER ALBERT ARTHUR
IPC: F16H61/14
Filed: 1958-01-21
Abstract: 894,201. Friction clutches. SELF-CHANGING GEARS Ltd. Feb. 13, 1959 [Jan. 21, 1958], No. 2069/58. Class 80 (2). An expanding shoe-type friction clutch 18, which provides a direct-drive bridge between an input drum 3 and output shaft 17 of an hydrodynamic torque converter is engaged by the centrifugal mass of shoes 12 which are connected to the torque converter turbine 6 through a torque-responsive coupling which opposes the engaging force, and to the output shaft 17. Initial anti-clockwise rotation of the input drum 3 and torque converter impeller 5 connected thereto causes anti-clockwise rotation of the turbine 6 and a plate 11 fast therewith which forces rollers 23 carried by pins 22 on the clutch shoes 12 into the radially innermost ends of inclined slots 21 in the plate 11, retracting the clutch shoes. The drive is transmitted from the plate 11 through the clutch shoes 12 and blocks 25 thereon, which slide in radial slots in a disc 13 connected through a disc 15 to the output shaft 17. When the speed of rotation of the turbine 6 exceeds a predetermined value the centrifugal force on the shoes overcomes the inward force of the torque responsive coupling to engage the clutch 18 whereupon the torque converter and torque responsive coupling are by-passed. If the speed of rotation falls the clutch at first slips and the torque responsive coupling disengages the clutch. In Figs. 3 and 4 (not shown), the torque responsive coupling comprises an intermediate disc driven through a lost-motion toothed coupling from the plate fast with the converter turbine. The clutch shoes are pivoted to one of two links which are pivotally connected together at one end and their other ends are connected to the intermediate disc and torque converter plate respectively. Specification 740,692 is referred to.
Patent GB-348979-A (GB)
Title: Improvements in and relating to lighting appliances for streets and other similar purposes
IPC: F21V5/00
Filed: 1930-09-01
Abstract: 348,979. Street &c. lamps. HOLOPHANE. Ltd., Elverton Street, Vincent Square, London.-(Soo. Anon. Francaise Holophane ; 156, Boulevard Haussmann, Paris.) Sept. 1, 1930, No. 26070. [Class 75 (ii).] A prismatic glass for street and like lamps comprises smooth sections S, S<1> which reflect light normally into the required directions D, D<1> and sections which reflect and refract light towards these directions. The outer surface of the glass may be smooth and silvered, or provided with totally reflecting prisms, and the inner surface provided with refracting prisms P, or the outer surface may be provided with silvered prisms P<1> for reflecting and refracting the light, and the inner surface left smooth or provided with supplementary prisms or flutes. The prisms may be arranged in groups according to their angles and some or all of them may be inclined.
Patent GB-1382114-A (GB)
Title: Spring means
IPC: B65D83/14
Filed: 1972-01-17
Abstract: 1382114 Pressurized dispensing containers SAMUEL TAYLOR PTY Ltd 17 Jan 1972 [27 Jan 1971] 2109/72 Heading F1R [Also in Divisions F2 and F4] A cap 30 and valve 31, 32 for an aerosol container include a spring (see Division F2) integrally moulded with a plastics shell 35. The spring comprises a number of, e.g. four, elastically deformable leaf elements extending in spaced helical paths about a common axis.  If a spray tip 34 is displaced to one side, a cup 32 tilts and breaks the seal with a sealing disc 31.
Patent GB-1069347-A (GB)
Title: Creep-measuring machine
Inventor: DANTEN ANDRE
IPC: G01N3/08
Filed: 1966-01-17
Abstract: 1, 069, 347. Testing tensile creep. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan.17, 1966[Jan.22, 1965], No.2126/66. Heading G1S. A machine for measuring the high-temperature tensile creep of a material comprises two vices 26, 26a, Fig. 26 (not shown) for clamping a specimen 1 of the material, one vice being secured to a tensioning system 12 and the other to a stationary member, the vices being disposed in heating means 10, a reference rod 40 passing through the specimen and connected to the tensioning vice 26, and means 48 Fig. 2c (not shown) for the differential measurement of the movements of the reference rod relative to the specimen. The machine is characterized by two swivels 6, 8 which take up lateral forces, each swivel bearing via a forcetransmitting tube 2, 4 on one of the vices. One swivel 6 connects the tube 2 and specimen to the tensioning system and the other swivel 8 connects the tube 4 and specimen to a stationary support member, the centre of rotation of the swivels being at the corresponding end of the specimen. Each swivel comprises a movable ring bearing via balls 20 Figs. 2a, 2b (not shown) on stationary rings which are connected to the tubes 2, 4. One end of the reference rod 40 is clamped by the vice 26, 28 and the other end bears against a rod 42 coaxial therewith which in turn rests on a sensor associated for example with an inductive differential sensor 48 also connected by a tube 50 to the end 1b of the specimen. When tension is applied to the specimen by pulling the rod 12, only axial pull is experienced since any pivoting or lateral stress is taken up by the swivels 6 and 8 so that an accurate reading of the relative axial movement of the tubes 42 and 50 can be taken.