baber/WOPTO huggingface dataset:
Patent GB-1354027-A (GB)
Title: Electrical data transmission and gating systems
IPC: H04L12/40
Filed: 1971-05-25
Abstract: 1354027 Grate circuits SIEMENS AG 25 May 1971 [26 May 1970] 16840/71 Heading H3T In an electrical data transmission and gating system in which a plurality of transmitting gates 1-3, Fig. 1, have their outputs connected to a common line SL to which inputs of a plurality of receiving gates S4-S7 are connected, the system includes means for selectively rendering any one of the transmitting gates 1-3 operative to transmit a binary digit signal at any instant by a respective control signal, each of the transmitting gates 1-3 is operable in a first transmitting state representing one binary digit signal and a second transmitting state representing the other binary digit signal, and each of the transmitting gates has an output impedance which is relatively low when transmitting either binary digit signal and relatively high when it is not transmitting. If during one time slot the control signals S2 and S4 are "1" a data channel is provided from transmitting gate 2 to receiving gate 4. Each transmitting gate 1-3 may be formed by a gate circuit having three switching states (Fig. 3, not shown) (0) connecting a voltage (UN) to the line SL, (1) connecting a voltage (UHL) to the line SL and a third state (2) where the gates internal resistance is high. Switching between binary 1 and 0 with this gate changes the potential (at point A) on the line SL with less delay than a known transmitting gate described (Fig. 2, not shown). In a further form of transmitting gate, Fig. 4, which may be of integrated circuit construction when the control signal S is "0" transistor T5 conducts and the current via resistors RC, RC<SP>1</SP> biases transistor T6 off. The internal impedance of the transmitting gate is high and the "0" and "1" data signals D are blocked. When the control signal S is "1" transistor T5 is off and data signals of "0" and "1" produce corresponding outputs at A, from T6 (UA, Fig. 5, not shown) and the internal impedance of the output of the transmitting gate is low for both  binary inputs. The gating system may be used for time division multiplex operation.
Patent GB-709647-A (GB)
Title: Weaving of fabrics other than those having taffeta bindings
IPC: D03C1/34
Filed: 1951-07-16
Abstract: 709,647. Loom shedding mechanisms. STAUBLI, R., STAUBLI, H., and STAUBLI, O., [trading as STAUBLI & CO. GEB.]. July 16, 1951 [Oct. 12, 19501. No. 16847/51. Drawings to Specification. Class 142(1) The heald shafts of a loom are so operated that during beating-up the warp threads which are to be transferred from the top shed to the bottom shed or vice versa are positioned in the central or closed shed position, and the warp threads which are to remain,.in the top or bottom shed are moved to an intermediate position between the top and closed shed positions or bottom and closed shed positions respectively. To effect operation of the heald shaft in this fashion they may be operated by a cam, or alternatively the movement of the knives of a dobby may be offset so as to effect the desired result.
Patent GB-227057-A (GB)
Title: Improvements in or relating to gauges for measuring or testing linear dimensions
IPC: G01B3/18
Filed: 1924-07-14
Abstract: 227,057. Dicker, S. G. S., (Akt.-Ges. vorm. Skodawerke in Pilsen). July 14, 1924. Linear-dimension gauges.-A limit gauge comprises a step-shaped member 10 and a feeling member 3 on a pin 5 which is slidably and rotatably mounted in a sleeve 6 of the frame 1 and has a lug 15 adapted to coact with the steps 11, 12, 13. In use, the article x being gauged is placed in contact with the fixed anvil 2 and the anvil 3 is brought up to it. The pin 5 is then rotated and if the article is correct to size within limits the lug 15 will miss the shoulder 22 and stride the shoulder 21. The application to a depth gauge is described. The pin 5 may be charged for one suitable for gauging other dimensions.
Patent GB-930903-A (GB)
IPC: B60N2/50
Filed: 1962-05-02
Abstract: 930,903. Resiliently mounted seats. F. BREMSHEY, and W. FULLING. May 2, 1962 [June 16, 1961], No. 16888/62. Addition to 918,114. Classes 52 (1) and 52 (2). The spring arrangement of the vehicle seat of the parent Specification is modified by having a bell crank lever 8, 9 situated beneath the seat frame one arm of this lever being acted upon by a spring 18 in a substantially horizontal direction. As shown there are two lever arms 8 the edges 24 of which make contact with rollers 23 on the front pair of guide rods 3. The edges 24 may be straight or curved. The angle between the arms 8, 9 of each bell crank lever is so arranged that the effective length a of the moment arm of the lever 9 increases as the bell crank levers rotate in an anticlockwise sense. A handle 21 is provided to adjust the equilibrium height of the unloaded seat.
Patent GB-205468-A (GB)
Title: Improvements in and relating to feed water regulators and heaters
IPC: F22D1/46
Filed: 1923-06-29
Abstract: 205,468. Muchka, J. Oct. 10, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Regulating delivery by varying speed of motor.-Feed-water is fed to a locomotive or like boiler, supplying steam to an engine with a variable output, by a steam pump or injector the working of which is regulated in dependence upon the adjustment of the engine valve-gear. An injector 5 drawing water from the feed tank and delivering it into a direct contact heater 2 is operated by the engine exhaust, which is taken through an oil separator 3 and supplied partly to the injector and partly to the heater. The hot water pump 1 is driven from the engine. The injector may be operated by live steam the supply of which is regulated by a valve connected to the engine valve gear.
Patent GB-378581-A (GB)
Title: Improvements in exercising apparatus
IPC: A63B23/04
Filed: 1931-06-11
Abstract: 378,581. Exercising apparatus. BUNKELL, S. F., 12, Stretton Road, East Croydon, and ALLIN, A. H., 74, Tharp Road, Wallington, both in Surrey. June 11, 1931, No. 16972. [Class 132 (i).] Apparatus for separately or simultaneously exercising the hands and feet comprises a frame 1 having a seat 2 adjustably mounted thereon and cranks 7, 8 for exercising hands and feet connected through chains 6 to sprockets on an adjustable brake hub. The cranks may operate in either direction either independently or their sprockets may be connected by a pin for simultaneous operation. The hand cranks are mounted on an adjustable stem 11, the fork 14 being slotted to allow corresponding adjustment of the hubs. The whole apparatus is mounted on a portable stand 20 by winged nuts 21.
Patent GB-626524-A (GB)
Title: Improvements in or relating to methods of modifying surface reflection
IPC: C03C17/25
Filed: 1945-07-03
Abstract: 626,524. Surface reflection coatings. AMERICAN OPTICAL CO. July 3, 1945, Nos. 16987 and 16988. Convention dates, Nov. 22, 1943 and Nov. 6, 1944. [Class 97 (i)] Surface reflection of optical elements of glass, synthetic resin, precious stones or of photographs, maps &c. is modified by application of one or more layers deposited by evaporation from a solution, reflection being either increased or decreased. Selective reflection by suitable choice of thicknesses is used to produce colour filters. To decrease reflection a high index layer is first applied, followed by a low index layer. The first layer is deposited from a solution of ethyl alcohol and titanium or tin tetrachloride, the layer comprising titanium or tin dioxide. Alternatively, titanium bromide or iodide may be used or a layer to tungsten trioxide formed. The second, low index, layer comprises silicon deposited from a solution of ethyl alcohol, ethyl acetate, hydrochloride or hydrobromic acid and tetraethyl orthosilicate with or without magnesium chloride. Alternatively alkyl silicates, silicols or silicanes may be used. The solutions may be applied by dipping, immersing in solution and then pumping the liquid out, or by applying the solution while the article is being rotated. Fig. 4 shows a suitable apparatus comprising a rotary holder 12 supporting the specimen holder 11 within a casing 7 in which humidity and temperature may be controlled. After coating the layers are hardened by baking. The thickness of the layers is found by trial and error and may be varied by changing the concentration of the solutions, or the rate of dipping. Mixtures of the two solutions referred to above may be applied as a single layer, or as one of many layers, a gradation of refractive index thereby being possible. For high reflection coatings a layer of low refractive index is followed by one of high index. Colour filters produced by this process may be used as beam splitters in colour photography, and if desired, the deposited layers may be coloured or a colour filter coated to increase its effects. Monochromatic light may be produced by successive reflection and a colour beam for projection produced by suitably coating the concave surface of the reflector and passing the beam through a lightly coloured filter. By allowing light to fall on the multiple films at the polarizing angle, both reflected 'and transmitted beams are polarized. Two such films may be used as polarizer and analyser, or the latter may comprise a Nicol prism. The layer may be deposited from solution or a layer produced by evaporation. Specification 626,603 is referred to.
Patent GB-745169-A (GB)
Title: Improvements in and relating to washing machines
Inventor: BARNISH PHILIP
IPC: D06F33/08
Filed: 1953-06-19
Abstract: 745,169. Washing- and drying- machines. ENGLISH ELECTRIC CO., Ltd. June 18, 1954 [June 19, 1953], No. 17033/53. Class 138 (2). A washing-machine has a clothes receptacle 1 driven through a clutch (10, 16) by a motor 3 which is permanently connected to a pump 2, the pump supplying controllable hydraulic means for effecting adjustment of the clutch, and serving to drain or circulate a washing liquid which itself serves as the hydraulic fluid used by the hydraulic means. The pump 2 is connected to the motor 3 through belts and pulleys 11, 10, 12 and its outlet is connected by a hose 24 to a piston and cylinder arrangement 23. The piston is connected to a lever 18 which is pivoted at 19 and carries studs 17 engaging in a slot in a boss 13 fixed to the wheel 10. The wheel 10 and boss 13 are loose on a shaft 14 rigidly connected to the washing tub 1 and carrying a wheel 16. The adjacent surfaces of the wheels 10, 16 form the mating surfaces of the clutch. When the liquid is being circulated by the pump 2 the pressure in the piston and cylinder arrangement 23 is sufficient to hold the clutch disengaged against the action of a spring 22. By operating a valve 6 the liquid can be discharged, after which the pressure in 23 drops and the spring 22 causes the clutch to engage so that the tub 1 is rotated to spin dry the clothes. Specification 745,134 is referred to.
Patent GB-562651-A (GB)
Title: Improvements in or relating to aircraft landing gear
IPC: B64C25/40
Filed: 1942-12-01
Abstract: 562,651. Aircraft landing wheels. CLARK, A. H. Dec. 1, 1942, No. 17104. [Class 4] [Also in Group XXXIV] Rotation of aircrafi landing wheels by the windstream, prior tc landing so as to reduce the wear on the tyres when the aircraft touches down, is effected by forming the tyres with cups 4 or with tapering projections. The upper part of the wheel may be shielded to prevent the windstream from acting on that part of the wheel. According to the Provisional Specification, hinged vanes may be fitted to the sides of the wheel so as to be opened by the windstream or by spring at the lower part of the wheel and closed at the upper part or the wheels may be rotated by electric, hydraulic or spring motors or by the engines of the aircraft.
Patent GB-185261-A (GB)
Title: Improvements in garden or like rollers
IPC: A01G1/12
Filed: 1921-06-23
Abstract: 185,261. Eley, C. V. A., and Elwell, Ltd., J. June 23, 1921. Rollers, land, garden, and road.-A powerdriven roller comprises a roller 1, a frame 3, and an engine 4 which drives, through shafts 5, 11<a> and a clutch, a friction disc 7 mounted on the frame 3. The disc 7 drives the roller 1 through a second friction disc 8, which is adjustably mounted so that it may be brought into and out of contact with the roller 1 and the disc 7 by means of the rod 18, lever 16, and cable 45. The roller 1 is preferably in two parts, each part having friction discs 7, 8 driven from the shaft 5 by means of shafts 11, 11<a> and differential gearing 6. The engine is preferably a light petrol motor, steering being effected by a two-part roller 31. The friction discs, and also brakes, may act on a part 36 of reduced diameter.
Patent GB-418811-A (GB)
Title: Improvements relating to means for eliminating parasitical oscillations in radio-electric reception
IPC: H03G11/02
Filed: 1934-06-11
Abstract: 418,811. Wireless receiving-apparatus. MONGE, G. DE, Flostoy, Namur, Belgium. June 11, 1934, No. 17254. Convention date, June 27, 1933. [Class 40 (v).] Parasitic oscillation in wireless reception is eliminated by the provision between the aerial system and the receiver of a limiter valve 3 in series with an impedance 12 and a shunt limiting valve 8 connected in shunt to the receiver and the series impedance 12. A large capacity 4-6 and an inductance 7 are preferably provided in series with the limiter valve 3.
Patent GB-299796-A (GB)
Title: Improvements in the production of ammonium phosphates from mono- or di-calcium phosphate
IPC: C01B25/40
Filed: 1927-06-29
Abstract: 299,796. Johnson, J. Y., (1. G. Farbenindustrie Akt.-Ges.). June 29, 1927. Ammonium phosphate.-Mono- and di-calcium phosphates are treated in presence of water with ammonia or ammonium carbonate to yield a solution of ammonium phosphate and a residue of difficultly soluble calcium triphosphate, which is treated with acid to form further quantities of mono- and di-calcium phosphate. The reaction may be carried out under pressure and at raised temperatures. The conversion of the tricalcium phosphate may be effected by phosphoric acid, prepared by combustion of elementary phosphorus or by treating crude phosphate with sulphuric acid in which case calcium sulphate may be filtered or before or after the reaction with tri-calcium phosphate or with hydrochloric or nitric acid, in which case mono- or di-calcium phosphate may be separated by crystallization from calcium chloride or nitrate. Similar separations may be effected when the precipitated tricalcium phosphate is treated with sulphuric. hydrochloric or nitric acids.
Patent GB-626579-A (GB)
Title: Improvements in or relating to belt conveyors
IPC: B65G23/00
Filed: 1947-07-01
Abstract: 626,579. Endless-belt conveyers. BABCOCK & WILCOX, Ltd., and TAYLOR, R. A. July 1, 1947, No. 17293. [Class 78 (i)] A reversible endless belt conveyer 1 is driven by reversible driving means of approximately equal power and disposed at or near opposite ends of the conveyer, each driving means including an electric motor 9, 12, arranged to drive a hydraulic coupling. As shown each motor 9, 12 is a squirrel cage motor and the coupling to the driving pulley 3, 4 includes worm gearing 8, 11. A tensioning device is arranged centrally in the lower run of the belt or alternatively a tensioning device is provided in the lower run adjacent each driving means. Specification 619,075 is referred to.
Patent GB-1144955-A (GB)
Title: Phonograph pick-ups
IPC: H04R1/16
Filed: 1967-04-14
Abstract: 1,144,955. Pick-ups. FONOFILM INDUSTRI A/S. 14 April, 1967 [19 April, 1966], No. 17297/67. Heading H4J. A pick-up cartridge 2 is detachably mounted in a housing 1 and loose conductors in the form of coiled springs 7 connect contact pins 5 on the housing 1 with contact pins 6 on the cartridge 2. The coiled springs 7 are subject to a bending stress. Preferably, the springs 7 are first tightly fitted around the cartridge pins 6, the cartridge 2 is then mounted in the housing 1 and the springs 7 are finally slid on to the pins 5. If the pairs of pins 5, 6 are directly opposite one another, springs 7 having a slightly curved shape are used or the pins are slightly bent. Alternatively, a holding disc with holes for the springs 7 may hold the springs in a curved path. Two springs pressed laterally into each other so that the end portions of both springs extend coaxially with their convolutions interengaging may be pushed on to a common contact pin, the springs preferably being such that successive convolutions of each coiled spring are spaced from one another (Fig. 3, not shown). This arrangement is suitable for playing mono records on a stereo gramophone having a mono cartridge, the two stereo channels then being in parallel. Similarly, a stereo cartridge having four pins may be coupled to a mono housing having two pins, for playing mono records with a stereo cartridge. In a stereo apparatus a stereo cartridge may be used for playing mono records by connecting four coiled springs in pairs, each spring of a pair extending concentrically over a short distance between the contact pins (Fig. 4, not shown).
Patent GB-334587-A (GB)
Title: Improvements in electrical insulating materials
IPC: H01B3/28
Filed: 1929-06-06
Abstract: 334,587. Smith, W. S., Garmett, H. J., Dean, J. N., and Channon, H. C. June 6, 1929. Addition to 329,275. Indiarubber, purifying; compositions containing indiarubber and guttapercha, balata, or bitumen.-Non-rubber bodies are removed from rubber by heating it under pressure in a lowboiling solvent, decanting or filtering, and eliminating the solvent, e.g. by steam-blowing. The solvent, such as benzene, benzine, should have a boiling point below 120‹ C. The heat treatment may be for 5 hours at 150‹ C., or for longer at temperatures down to 100‹ C., or higher temperatures may be employed up to 200‹ C. The resulting solution has a low viscosity and is easily filtered. For insulating submarine cables the purified rubber is hardened by vulcanization or by admixture with guttapercha or balata (which may be purified as in Specification 307,390) or with a high-melting bitumen of low ash and free carbon content as in Specification 322,208. Measurements are given showing the low leakance and dielectric constant of such a compound.
Patent GB-541463-A (GB)
Title: A kinematograph projector with continuous film feed
IPC: G03B41/10
Filed: 1940-12-10
Abstract: 541,463. Kinematograph projectors. KOLB, O. K. (Electrical Fono-Films Co. Aktieselskab). Dec. 10, 1940, No. 17502. [Class 97 (i)] In a continuous-feed projector having two rocking mirrors alternately operative to effect compensation, the mirrors are mounted on separate co-axial spindles alternately rocked by arms engaged by pins on the two faces of a rotating drum, and the spindles are reciprocated axially by a guide pin engaging a sinusoidal channel cut in the curved surface of the drum. As shown, the film 1 is drawn over rollers 2 and through a curved two-picture gate 3 by a sprocket 6, and the projecting beam is reflected by one or both of rocking mirrors 10, 11 through a projection lens 12 to an adjustable mirror 13 reflecting to the projection screen. The mirrors 10, 11 are respectively carried by co-axial spindles 15, 16, Fig. 2, provided with arms 18, 21 loaded by springs 39, 40 and engaging opposite faces of a drum, 24 on the spindle 27 of the sprocket 6. Each arm has an outwardly bent face 19, 22, the faces being alternately engaged by pins 20, 23 on the drum so that each arm is rocked by such engagement until it engages a fixed stop, and is afterwards flexed so as to load the spring associated with it. The outwardly bent face ultimately slips off the pin engaging it, and the spring and the flexure return the arm to its initial position. Axial reciprocation of the spindles is effected by a pin 32 engaging a sinusoidal channel 25 on the drum 24 ; the pin 32 is carried by a blade spring having a frequency equal to that of the reciprocation. The relative positions of the parts may be modified, and the image projected by the lens 12 may be formed in an adjustable framing aperture carrying a field lens, a further lens being provided to project the screen image therefrom.
Patent GB-801592-A (GB)
Title: Improvements relating to vertical retorts
IPC: C10B3/02
Filed: 1955-06-17
Abstract: 801,592. Vertical retorts. SIMON-CARVES, Ltd. (Otto & Co. G.m.b.H., C.). May 2, 1956 [June 17, 1955], No. 17520/55. Class 51 (2). In a vertical retort setting, the retorts 1 are disposed between banks of horizontal heating flues 9 having interconnecting ports 10 controlled by dampers 11, the total cross-sectional area of the ports 10 increasing towards the top. Lean gas is introduced into the recuperator compartments 13 and 14 through regulable nozzles 12, and preheated gas from each compartment 13 enters the lowest flue 9 at 20, that from each compartment 14 being introduced into other flues 9 at different levels 21, 22 and 23 under control of dampers 15. Air is similarly introduced through compartments 16 and 17, partitions 24 separating the air and gas inlets to each flue. Gases rise through the flues 9 to the top flue 18 which discharges them into the recuperator flues 19. Additional metal tube recuperators 3 for the air and lean gas are heated by the waste gases passing from the flues 19 to waste ducts 20. The setting may be heated by rich gas introduced at 21, in which case all the recuperator compartments 13, 14, 16 and 17 are used to preheat air.
Patent GB-903124-A (GB)
Title: Blades for compressors, turbines and like fluid-flow machines
Inventor: CHEESEMAN IAN CLIFFORD
IPC: F01D5/14
Filed: 1960-05-18
Abstract: 903,124. Turbine and compressor blades. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. April 19, 1961 [May 18, 1960], No. 17540/60. Class 110 (3). A blade for an axial-flow turbine or compressor has a free tip end and has its working portion so constructed that its torsional flexural axis lies between the blade leading edge and the lift axis of the blade. A compressor blade has a metal forward part 13 integral with or attached to a root portion 12 and a flexible plastic rear part 14. The torsional flexural axis 16 is effectively that of the forward part 13 and is forward of the centre of lift acting through a lift axis 15. In operation, the blade tip will be at a lower incidence than the root and it can be arranged that unstable flow conditions are avoided or minimised to reduce the risk of flutter. In alternative constructions a central pillar, integral with or attached to the root is surrounded by plastic or like material forming the blade profile or an all metal blade has a chordwise slit 19 extending from the trailing edge (Fig. 7).
Patent GB-415237-A (GB)
Title: Improvements relating to thermionic valve circuits
IPC: H04B15/00
Filed: 1933-06-20
Abstract: 415,237. Valve amplifying circuits. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and CRUTCH, L. S., 15, Mundania Road, East Dulwich, both in London. June 20, 1933, No. 17560. [Class 40 (v).] The cathode of a thermionic valve, which may be an audio frequency amplifier, is heated from one secondary winding 5, 7 of a transformer and hum, due to harmonics of the supply frequency, is removed by a circuit Z associated with another secondary winding 3, 4 which supplies a current rectifying device RB. The circuit Z may be a series circuit tuned to the dominant harmonic or a combination of tuned circuits which may be connected in parallel and tuned to different frequencies or a condenser.