baber/WOPTO huggingface dataset:
Patent GB-666339-A (GB)
Title: Improvements in frequency divider and multiplier systems
IPC: H03B21/02
Filed: 1949-05-30
Abstract: 666,339. Valve generating circuits. COMPAGNIE INDUSTRIELLE DES TELEPHONES. May 30, 1949 [June 11, 1948], No. 14413/49. Class 40 (vi). In a frequency divider or multiplier a first group of frequencies is selected by a series of tuned circuits from the noise spectrum in the anode circuit of a valve amplifying stage and are then mixed in a first series of modulators to give a second group of frequencies which are then mixed in a second series of modulators with the incoming frequency which is to be divided or multiplied and the outputs of the second group of modulators are applied to the grid circuit of the valve, the wanted output. frequency appearing in either the first or second group of frequencies. Fig. 2 shows a circuit for dividing the frequency 5f of an incoming signal by 5. Circuits 3f and f in the anode circuit of amplifier 5 are tuned to frequencies 3f and f respectively where f is the required output frequency and the voltages at these frequencies are applied to a ring-type modulator a to produce sum and difference frequencies 4f and 2f respectively at its output. These frequencies are applied to a second modulator b where they are mixed with the incoming frequency 5f to produce frequencies f and 3f which are applied to the grid of the amplifier 5. The output frequency f is obtained at the terminals 11, 11<SP>1</SP>. In modifications, Figs. 3 and 4 (not shown), the frequency of an incoming signal may be divided by 2n and 2n + respectively.
Patent GB-161861-A (GB)
Title: Improvements in and relating to fruit presses
IPC: B30B9/04
Filed: 1920-05-27
Abstract: 161,861. Hieber, J. G. H. May 27, 1920. Presses, wine and cider.-Two bottomless cylindrical baskets 13, 14 composed of staves 16 separated by wedge-shaped grooves 23 rest on grooved tables 25, 26 carried on arms 27 which are pivoted at 30 and which also revolve about the standard 2 on a spring-supported bearing 31, so that the baskets rest alternately beneath the filling-hopper 24 and the plunger 12. The baskets are retained in place by a second pair of spring-supported revolving arms 44, and a catch 39 is used to lock the basket and table in position beneath the, plunger. During pressing the tables are forced down on to the base 5, which is surrounded bv a channel 6 to collect the expressed juice. The fruit is charged in suitable filter bags, and the baskets are alternately filled and pressed until full of pulp. To facilitate emptying, the baskets are made in two halves hinged together at 17 and secured by a cam locking-device 20.
Patent GB-709119-A (GB)
Title: Improvements in or relating to high vacuum diffusion pumps
IPC: F04F9/00
Filed: 1951-06-19
Abstract: 709,119. Condensation pumps. VOGT, A. June 19, 1951 [June 19, 1950], No. 14550/51. Class 71. A high vacuum condensation pump comprises two or more constituent pumps working in parallel in separate chambers of the pump; each constituent pump and chamber substantially surrounding or being surrounded by another. From a common reservoir oil or mercury is vaporized by an electric heater 4 into coaxial spaces 6, 17, 48 of a central pump having nozzles 11, 18, 21 in parallel, and a condensing surface 12 of a chamber 44. Intermediate and outer pumps have vaporizing spaces 59, 57, 22, 34, 40, nozzles 26, 37, 43, 27, 36, 42, and condensing surfaces 28, 29 of chambers 53, 45 respectively. The chambers 44, 53, 45 are open to the vessel to be evacuated and are connected to each other by ducts 54, 52 and to a conventional backing pump by ducts 51, 2. The condensing surfaces 12, 28, 29 are liquid cooled.
Patent GB-543319-A (GB)
Title: Furnace or cell for carrying out aluminium refining process
IPC: C25C3/24
Filed: 1940-09-26
Abstract: 543,319. Electrolytic refining of aluminium. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd., PRITCHARD, P., and TAYLOR, G. O. Sept. 26, 1940, No. 14576. [Class 41] In an electrolytic furnace or cell for refining aluminium, a chamber containing layers of impure aluminium, electrolyte, and pure aluminium is enclosed by a refractory lining c of tapered magnesite or other suitable blocks spaced from an outer casing a lined with refractory blocks b to form an annular chamber g through which air is circulated by a fan or blower for cooling purposes. The chamber is provided with a partition i on opposite sides of which air inlet and outlet pipes h, j are arranged preferably tangentially. The annular chamber g may be provided with baffles. The blocks of the lining c are clamped together by a band d which may be formed in sections bolted together and such band may be utilized for lifting the lining off the floor e. Air may pass from the upper part of the annular chamber g through a gap n between the top of the chamber and the lining c for cooling the electrodes o and powdered salts of the same composition as the electrolyte scattered on the surface of the pure aluminium in the cell. Pure aluminium is tapped through a passage q at the top of the lining c communicating with a spout r. Impure aluminium may be tapped through a passage t in the carbon block f to a spout s provided with a plug u closed by springs v. The carbon block f forms a part or the whole of the floor of the cell and carries the cell current to the impure aluminium at the bottom of the cell.
Patent GB-277103-A (GB)
Title: Improvements in or relating to alternating current rectifying devices
IPC: H01L21/00
Filed: 1926-06-09
Abstract: 277,103. Ruben, S. June 9, 1926. By solid unidirectional conducting devices. - The electropositive element of an asymmetric couple consists of a metallic element of the chromium group, preferably tungsten, the co-operating electronegative element comprising a metallic oxide, for example, an oxide of iron, lead, manganese, or vanadium. The electropositive element may be provided with an oxide coating formed electrolytically using a solution of ammonium borate as electrolyte, or by heating the metallic electrode in an oxidizing atmosphere. The Figure shows a series of oxide-coated tungsten elements 2 arranged in conjunction with electronegative elements 3 and conducting plates 1 to utilize both half waves of the alternating current from a transformer T for charging a battery B. The elements are clamped together under high pressure by means of an insulated bolt N. Alternatively a rectifying couple may be formed by applying to a tungsten electrode element a layer of vanadic pentoxide and heating to form a surface layer of oxide on the tungsten, both sides of the tungsten element being so coated if a full wave rectifier is required.
Patent GB-545628-A (GB)
Title: Improvements in or relating to structural materials
IPC: D07B1/02
Filed: 1940-09-28
Abstract: 545,628. Reinforced plastic materials ; pipes and tubes. FINLAYSON, D., and HALE, F. C. Sept. 28, 1940, No. 14675. [Classes 2 (ii) and 2(iii)] [Also in Groups VIII and XXVIII] Rigid stress-resisting members comprise parallel textile yarns embedded in plastic material, the yarns comprising artificial filaments that have been stretched while in a softened condition to impart greater tenacity and lower elasticity. Suitable yarns have a denier of 2500 to 5000. The parallel yarns may be interlaced with lighter threads. Suitable high tenacity yarns are of regenerated cellulose produced by the saponification of cellulose organic ester yarns and stretched while softened by steam, hot water or an organic swelling agent, or by spinning viscose or cuprammonium cellulose under such conditions that a considerable stretch is effected. Organic cellulose ester yarns made by wet-spinning and cellulose ether yarns may also be used. Stretched cellulose acetate yarns may be shrunk by treatment with methylene or ethylene dichlorides diluted with benzene or toluene. Suitable plastics include cellulose esters, ethers and ether-esters ; polymethyl and polyethyl' acrylates, polymethyl methacrylate, polyvinyl esters, ethers, polystyrene and co-polymers of these ; phenol-, urea-, thiourea-, guanidine- or dicyandiamide-aldehyde resins ; casein and soya bean protein plastics. The plastic may be applied to the shaped reinforcement or incorporated prior to or during shaping. The production of rods and tubes from bundles of yarns held together by light binding threads is described. Tubes may also be formed by helical winding of layers of yarns on a mandrel, if desired with yarns in alternate layers crossing. Ribbons or tubes may be folded and moulded into L, U, T or H-shaped members. Metal inserts, e.g. eyes, bushes or ferrules may be moulded in place. As shown in Fig 8 a strip of yarns 24 is wound over eyelets 25, the parallel parts sewn or whipped, embedded in plastic material and moulded to form an eyeletted tension member. The stress-resisting members may be applied as reinforcing ribs to the fabric skins described in Specification 544,442, [Group VIII].
Patent GB-983563-A (GB)
Title: Improvements relating to change-speed gear mechanisms
Inventor: STOTT THOMAS CHARLES FELIX
IPC: F16H63/20
Filed: 1963-04-11
Abstract: 983,563. Change-speed control. VAUXHALL MOTORS Ltd. Feb. 6, 1964 [April 11, 1963], No. 14700/63. Addition to 935,501. Heading F2D. The gear-shift mechanism described in the parent Specification and having an axially slidable and rotatable selector shaft 22 fast with a selector spade 52 engageable with lugs 74, 76, 82 of strikers, is modified by the striker forks 70, 72 for establishing the forward ratios being freely mounted on the selector shaft 22. The interlock sleeve 60, which is axially stationary and has a groove 100 preventing movement of the unselected strikers, is modified by having an L-shaped slot 64 engaged by a pin 62 fast with the gear-box casing to prevent axial movement of the sleeve and to limit its rotational movement to between the two positions determined by the arms of the L. Specifications 971,394, 971,395 and 983,564 also are referred to.
Patent GB-1495673-A (GB)
Title: Watersoluble naphthyl monoazo pyrazolone dyestuffs and process for producing fast dyeings and prints therewith
IPC: C09B62/51
Filed: 1975-04-10
Abstract: 1495673 Reactive naphthyl monoazo pyrazolone dyestuffs HOECHST AG 10 April 1975 [11 April 1974] 14764/75 Heading C4P Novel reactive dyestuffs of the formula wherein X is are prepared by coupling diazotized 1-naphthylamine-4-sulphonic acid with the appropriate pyrazole compound. In the products the X groups may be interconverted by standard procedures. The dyestuffs have use in dyeing fibrous materials containing hydroxy groups or nitrogen, particularly natural or regenerated cellulose (cotton, linen), viscose rayon, silk, wool and synthetic polyamides and polyurethanes. Reference has been directed by the Comptroller to Specifications 1,290,505, 1,268,699 and 1,106,244.
Patent GB-1344186-A (GB)
Title: System for the continuous distribution of electrical energy
IPC: H02J3/14
Filed: 1971-05-13
Abstract: 1344186 Distribution systems M BREITMEIER 13 May 1971 [14 May 1970] 14776/71 Heading H2H A power distribution system wherein a plurality of power output lines N1-N5 is supplied from a single input line H1 is modified according to the invention in that each output line is divided into two branch lines 1, 2 as shown in Fig. 2, the line 2 being controlled so as to receive only as much power from the line N1 as is not required by the line 1, the combined amounts of power received by lines 1, 2 being controlled so as not to exceed a predetermined maximum value. The line 1 is provided with an output limiter 4 to keep the power delivered by the line below the maximum value together with a current transformer 3 which produces a signal representing the actual power in the line 1. This signal is fed to an output regulator L 1 in the line 2 such that the line 2 is controlled to receive power to an amount equal to the difference between the maximum permissible in the line 1 and the actual amount being delivered by the line 1. The output regulator L 1 is provided with a second input F1 derived from a current transformer S1 in the line N1 by way of a control device S. The device S monitors the powers being supplied in all the lines N1-N5 and controls all the output regulators L1-L5 in a manner to prevent the input line H1 from being overloaded. The regulators L1-L5 may each include a thyristor, a thyratron, an ignitron, a magnetic amplifier, a variable transformer or a triac.
Patent GB-778336-A (GB)
Title: Improvements in or relating to the cooling of brakes
IPC: F16D65/78
Filed: 1955-05-23
Abstract: 778,336. Cooling brakes; disc wheels. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES, S.I.A.M. May 23, 1955 [May 24, 1954], No. 14849/55. [Classes 103 (1) and 144 (1). In a cooling device for brakes, two annular chambers are mounted on a fixed portion of a wheel assembly, each chamber having at least one wall in a plane perpendicular to the axis of rotation of the wheel, one or more brake discs being mounted for rotational movement with the wheel so as to be capable of frictional engagement with one of the walls of each chamber, a substance of high calorific capacity in each of the chambers, and means to produce relative axial displacement between the two chambers and the brake disc or discs so as to apply or release the brake. In the embodiment illustrated in Fig. 1, a disc brake comprises a hollow annular chamber 7a rigidly secured to the non-rotatable wheel hub 6 and provided with a chromium plated friction surface 9a, a brake disc 3 carrying friction linings 4a, 4b which are either in the form of a continuous ring or in the form of a series of pads, and rotatable and axially moveable on splines with the wheel 1, and a second hollow annular chamber 7b which is permitted axial movement on fixed hub 6. The hollow annular chambers 7a and 7b are filled with liquids or metals having high specific heats such as sodium, bismuth, water or glycol &c. The brake is energised by means of a series of hydraulic actuator units 11, hydraulic pressure being supplied via conduit 14 in the fixed piston 12 of each actuator unit to supply fluid under pressure into chambers 16 to move the annular chamber 7b in the direction of the arrow f to bring the friction surface 9b of chamber 7b into frictional contact with friction lining 4b secured to brake disc 3 to move the brake disc into frictional contact with braking surface 9a on fixed chamber 7a. To prevent excessive pressures developing during braking action when water is used as the coolant, chambers 7a and 7b are not completely filled and any excess steam pressure may be released by relief valves 19a, 19b. Alternative arrangements are illustrated in Figs. 3 and 4 wherein in the case of the disc brake shown in Fig. 3 the brake disc is formed as the central web 21 of wheel 1 having friction linings 4a and 4b secured thereto and annular chambers 7a, 7b being forced inwardly in direction of arrows # when a plurality of opposed hydraulic actuator units are pressurized. In the construction illustrated in Fig. 4 the wheel is formed as a hollow body made up of two half shells 1a, 1b assembled together by means of bolts 23 and forming two discs 1a, 1b carrying friction linings 4a, 4b. When conduits 24, 25, 26a, 26b, are pressurized, annular chambers 7a and 7b are forced axially outwardly into frictional contact with friction linings 4a, 4b to effect braking of the wheel. Specification 652,436 is referred to.
Patent GB-852407-A (GB)
Title: Improvements in or relating to grinding machines
Inventor: STURROCK JAMES DOUGLAS
IPC: B24B47/22
Filed: 1958-05-10
Abstract: 852,407. Grinding. LUKE & SPENCER Ltd. May 9, 1958 [May 10, 1957], No. 14855/57. Class 60. A grinding machine having a stepless variable speed drive for its grinding wheel and control means for the variable speed drive is characterised by a workrest carried by a first screwthreaded member in engagement with a second screw-threaded member, relative rotation between said screw-threaded members causing movement of the workrest towards or away from the grinding wheel to permit workpiece adjustment in accordance with the diameter of the grinding wheel, and causing, also, corresponding adjustment of the control means. The grinding wheel 8, Fig. 1, is driven by an electric motor 15 through a belt and expanding pulleys 14, 16, the workrest 5 is adjustable towards the grinding wheel by a screwed spindle 9 coupled by a flexible drive 13 to means for adjusting the pulleys, in a modification, the spindle 9 is coupled hydraulically to the pully-adjusting means. In a further modification, Fig. 2, the workrest 5 is adjusted by a shaft 25 carrying a sprocket 27 driving a nut 24 ; the shaft 25 also carries sprockets 29, 30 for effecting adjustment of the expanding pulleys.
Patent GB-612058-A (GB)
Title: Improvements in or relating to a dental handpiece for a drilling or the like tool
IPC: A61C1/16
Filed: 1946-05-16
Abstract: 612,058. Dental hand-pieces. BRAUNSCHWIEG, C. May '16, 1946, No. 14867. - [Class 81(ii)] In a dental hand-piece, a guard sleeve 7 for the chuck 1 is slidably mounted on the stationary part 4 of the handpiece so that in one position its free end surrounds the chuck. Its movement is restricted by the engagement of a pin 8 with a longitudinal slot 10 terminating in a transverse slot 11 forming a bayonet catch arrangement. Alternatively, a pin on tube 4 may engage a groove in the inner wall of sleeve 7. Several pins and slots or grooves may be present, and the bayonet catch may be replaced by a spring catch. In other forms, the sleeve 7 may be disposed between the tube 4 and spindle 2, or in the interspace of a double-walled tube 4.
Patent GB-167895-A (GB)
Title: Improvements in sight doors for automobile wind screens and the like
IPC: B60J1/20
Filed: 1920-06-01
Abstract: 167,895. Joseph, N. June 1, 1920. Wind and like screens.-In a sight door for a motor-car wind-screen which is pivoted to revolve in a plane parallel to the surface of the wind screen, the boss around the pivot is provided with projections and depressions arranged to register at intervals whereby the sight door is retained in the open or closed position. The sight-hole cover 20 is mounted in a frame 5 which may extend entirely around its edge and which registers with a corresponding frame mounted around the edge of the sight hole. The cover 20 is mounted on a stud 4, two balls 8 which run in circular grooves retain the cover 20 in fully open or fully closed position through the medium of depressions formed in the grooves. A layer of soft material, or studs, or felt, leather, &c. may be arranged around the sight door to prevent vibration. The hinge is pressed together by a spring 11. The hinge joint may be formed with radial tongues and grooves to retain the door in intermediate positions.
Patent GB-402424-A (GB)
Title: Improvements in or relating to self-propelled trucks having lifting platforms
IPC: B62B3/06
Filed: 1932-05-25
Abstract: 402,424. Reversing gearing. CLARK TRUCTRACTOR CO., Battle Creek, Michigan, U.S.A. May 25, 1932, No. 14874. Convention date, May 25, 1931. [Class 80 (ii).] Comprises a self-propelled truck having a load platform and at least two steering wheels driven through reversing gearing including permanentlymeshed gears and a clutch for driving the wheels in one direction and permanently-meshed gears and a second clutch for driving in the opposite direction. The clutches are preferably friction clutches. The reversing gearing is shown in Fig. 10 and comprises the engine shaft 180 and a co-axial shaft 190 adapted to be coupled together for the forward or direct drive by means of a friction clutch 195. The shaft 180 carries a gear wheel 184 in mesh with a wheel 185 on a lay shaft 187, this shaft carrying a loose gear wheel 216 adapted to be clutched thereto by a friction clutch 213. The gear wheels 193, 216 are always in mesh with a gear wheel 150 driving the road wheels so that the wheel 150 can be driven in either direction according to which of the clutches 195, 213 is engaged. The clutches are operated by forks connected by links 261, 277, Figs. 22 and 24, to levers 235, 236 pivoted at 234 and controlled by springs 239 so that rollers 237, 238 on the levers always bear against cams 232, 233 carried by the hand lever 9 which is pivoted at 230. When the hand lever is in the central position shown both rollers rest in central recesses in the cams and both clutches are disengaged so that no drive is transmitted. If the lever 9 is raised the raised part 242 of cam 232 operates the lever 235 and causes the forward drive clutch 195 to engage ; the reverse clutch is not affected since the active part 245 of cam 233 is circular about the hand lever pivot 230. When the hand lever is lowered the raised part 240 of cam 233 operates lever 236 and causes the reverse clutch 213 to engage, the forward clutch being left disengaged. Specification 280,303, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], is referred to.
Patent GB-1163935-A (GB)
Title: Burners
Inventor: MARTIN BERNARD THOMAS DAVID
IPC: F23K5/02
Filed: 1966-04-04
Abstract: 1,163,935. Burners. MAYWICK APPLIANCES Ltd. 23 May, 1967 [4 April, 1966], No. 14881/66. Addition to 950,763. Heading F4T. In an improvement in or modification of the liquid fuel burner of Specification 950,763, in which liquid fuel is fed to a burner under the pressure of a pressurized gas such as propane, the said gas is fed from a bulk storage source and contained in a flexible tank liner E of polyurethane located in the fuel tank A. When it is desired to refill the tank with liquid fuel pressure in the liner E is relieved by feeding the propane into the purge line of the burner.
Patent GB-348387-A (GB)
Title: Process for the manufacture of footwear
IPC: A43B3/10
Filed: 1930-05-15
Abstract: 348,387. Boots &c. WANGEMANN, P., 80, B³lowstrasse, Berlin. May 15, 1930, No. 14927. Convention date, Aug. 26, 1929. [Class 17 (ii).] A boot or shoe upper or lining is woven in one piece of inelastic material to final form with an insole with warp threads g running from heel to toe and weft threads f running round the foot. Cheap leather can b attached to the outside to form an upper with a space between it and the lining for ventilation, or it can be coated or impregnated with rubber, celluloid, or viscous solution, such as that employed in the manufacture of artificial silk, or wax. The coating may be done in one bath and hardening in another. The lining may be stiffened at toe, heel, or sides by local impregnation, or stiffeners may be inserted. The sole part of the upper or lining may be slit to facilitate removal of the last. A sole may be attached by cementing or sewing.
Patent GB-1073195-A (GB)
Title: Pressure exchanger
Inventor: RUFFLES PHILIP CHARLES
IPC: F02C3/02
Filed: 1966-04-04
Abstract: 1,073,195. Pressure exchangers. ROLLSROYCE Ltd. April 4, 1966, No. 14959/66. Heading F1N. A pressure exchanger, Fig. 2 (not shown) for use in a gas turbine engine or jet propulsion engine comprises end plates (30, 31) having rotatable therebetween a cell ring (27), the end plates (30, 31) having inlet and outlet ducts (35, 37) connected to an annular combustion chamber (22) surrounding the exchanger, an inlet duct (33) for gas compressed by the turbine compressor, an outlet duct (39) connected to the inlet of the turbine and a transfer duct (44) connected between an outlet port (43) and an inlet port (45). The transfer duct (44) is arranged to receive from the cells relatively cool gas which has not passed through the outlet (37) to the combustion chamber (22). The cool gas in the transfer duct is readmitted to cells having previously received relatively hot gas through the duct (35) connected to the combustion chamber but before the relatively hot gas in the cells passes to the outlet duct (39).