baber/WOPTO huggingface dataset:
Patent GB-1095745-A (GB)
Title: Improvements in or relating to photosensor device and methods of operating such device
IPC: H01L31/00
Filed: 1966-11-30
Abstract: 1,095,745. Photo-electric devices. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Nov. 30, 1966 [Feb. 23, 1966], No. 53730/66. Heading H1K. [Also in Divisions H3 and H4] A radiation sensitive circuit comprises a transistor, one junction of which is charged and then discharged by incident radiation so that the magnitude of the next charging pulse indicates the magnitude of the radiation. The collector-to-base junction 14 of a double diffused type transistor is charged by a negative pulse during #t. At the end of the pulse the voltage across the junction due to the charge maintains the emitter junction non-conductive so that such discharge as occurs is mainly due to incident radiation. The next pulse recharges the collector junction and produces a corresponding but amplified signal in the output means.
Patent GB-1562963-A (GB)
Title: Radio information transmission
IPC: H04M3/42
Filed: 1977-12-29
Abstract: The radio network has stationary and mobile subscriber stations (T1, T2) and comprises a plurality of base stations (1, 2, ... 7) in a physical arrangement with overlapping radio areas. A frequency distribution plan for the base stations largely eliminates co-channel interference in the respective radio area, including an extended peripheral zone. Each mobile subscriber station (T1, T2) decides semi-automatically or fully automatically from its reception situation, taking into account the traffic load of the network base stations which can be received by it, on the radio area (1, 2, ... 7) to which it will assign itself and when it will change radio areas. As a result, subscribers abandon an overloaded base station and transfer to an adjacent, less heavily loaded base station. <IMAGE>
Patent GB-1491449-A (GB)
Title: Closure cap and sealed package
IPC: B65D41/02
Filed: 1974-12-17
Abstract: 1491449 Closure cap ANCHOR HOCKING CORP 17 Dec 1974 [9 Jan 1974] 54485/74 Heading B8T A closure cap 2 comprises a cover portion 6 and a depending skirt 9 wherein the free edge of the skirt is turned radially inwardly and wherein a step is provided in the skirt between its free edge and the cover portion which step forms an annular bead 11 extending radially inwardly with respect to the outer surface of the remainder of the skirt. The bead and the inwardly turned end of the skirt are connected by an intermediate portion 13 of the skirt to form a channel 15 having a shallow V-shaped base, the channel accommodating a rubber- or rubberlike annular gasket 4. The dimension W of the gasket is less than the dimension C, preferably W is 80% of C. The cap is intended for fitting on the neck of a container 3 to form an hermetic seal. The glass finish of the container 3 has a flared guide surface 20 and a sealing surface 5 of lesser flare therebelow which is contacted by the gasket 4 when the cap is located on the container neck. The container is claimed in Specification 1,491,450 which has been divided from this Specification.
Patent GB-1324179-A (GB)
Title: Extruded catalyst composition and process for the manufacture and use thereof
IPC: C10G45/08
Filed: 1970-11-17
Abstract: 1324179 Catalyst composition UNIVERSAL OIL PRODUCTS CO 17 Nov 1970 [21 Nov 1969] 54541/70 Heading B1E [Also in Division C5] A catalyst composition is formed by: (i) commingling a refractory inorganic oxide gel, a group VIB metal compound, a Gp VIII metal compound and a peptizing agent; (ii) admixing the peptized product with an aqueous alkaline reagent, (iii) extruding, drying and calcining. Oxides specified are gels of alumina, silica, zirconia, alumina-silica, and alumina-zirconia, the alumina gel preferably being α- alumina monohydrate (boehmite). Peptizing agents specified are formic, acetic, propionic, sulphuric, hydrochloric or nitric acids and metals specified are: GpVI-molybdenum, chromium and tungsten; and Gp VIII-nickel, cobalt, iron, palladium and platinum. The final catalyst should contain 4-30wt% Gp VIB and 1-10wt% Gp VIII. The Examples describe the preparation of an alumina, molybdenum, cobalt catalyst.
Patent GB-1330980-A (GB)
Title: Treatment of open-celled cellular polymeric foam
IPC: B29C44/56
Filed: 1971-11-24
Abstract: 1330980 Reticulating polymeric foams TENNECO CHEMICALS Inc 24 Nov 1971 [1 Dec 1970 54618/71 Headings C3C and C3R Polymeric foams are reticulated by longitudinally moving a strip of the foam over first, second and third adjacent transverse zones, while supporting the foam strip on a hard and resilient porous surface, reducing the pressure beneath the first and third zones and directing a continuous jet of fluid against the surface of the foam strip as it passes over the second zone, the jet being substantially perpendicular to the tangent to the surface of the foam at the second zone and at a velocity and mass flow rate sufficient to rupture cell walls. The polymeric foam is preferably a polyurethane foam but also maybe a polyethylene, polypropylene, polyvinyl chloride, silicone, neoprene or rubber latex foam. The fluid used to rupture cell walls may be a liquid, e.g. water or a gas, especially air. Fig. 3 illustrates an apparatus which may be used. A first drive arrangement for the foam web is provided by driven, gear-connected pull rolls 40 and 41 and a second arrangement by roll 43 which is immediately upstream of windup roll 45. Two vacuum chambers 55 attached to an exhaust fan are located between rolls 41 and 43 and a moving steel-mesh screen 60 which passes round guide rolls 62, 63, 64 and 65 and is driven by roll 66 is supported on the upper surfaces 56 of the chambers 55. Take-up roll 68 maintains the tension of screen 60. The non- perpendicular sides 67 of the chambers 55 form a diverging nozzle. Fluid jets from the nozzle 70 and passes through the foam web and between the two chambers 55. The foam may be used as a fabric lining.
Patent GB-1161812-A (GB)
Title: Washing Machine and Method.
IPC: D06F39/00
Filed: 1966-12-07
Abstract: 1,161,812. Washing machines. COLGATE-PALMOLIVE CO. 7 Dec., 1966 [8 Dec., 1965; 6 July, 1966], No. 54709/66. Heading D1A. An appliance for washing clothes or an agitator for a washing machine comprises a sleeve closed at one end and having means fixed to its outer surface to engage the clothes, and means for forcing liquid out of the bottom of the sleeve when it is reciprocated. The tube 12 is slidable on a column 11, and has a piston 29 fixed to it. On a downward stroke of the sleeve the bottom of vanes 37 force articles downwards, and jets of water are forced through apertures 17, at the base of the column by the piston. The articles are thereby rotated about an annular axis concentric with the agitator. On the upstroke the vanes slide past the articles, and water returns to the column. In a modification the piston is replaced by a bouyant plunger substantially filling the column. In a further embodiment, the column 11 is replaced by a small diameter column having radial fins the edges of which lie closely adjacent the inside of the sleeve. Water is sucked up and discharged down the fins, to and from the upper portion of the agitator while it reciprocates.
Patent GB-1159228-A (GB)
Title: Slidable Drawer Structure
Inventor: GUTNER KENNETH HOWARD
IPC: A47B88/12
Filed: 1967-12-01
Abstract: 1,159,228. Drawer runners. K. H. GUTNER. 1 Dec., 1967, No. 54770/67. Heading A4B. A channel section, steel slide 13 secured centrally to the underside of a drawer (11) has inturned flanges 21 slidably engaged in longitudinal grooves 22 in a fixed guide rail 12, the rear end of the slide 13 being formed with transverse ribs 24-26 and the rear ends 27 of the flanges 21 being divergent with respect to the web 19 of the slide to define a lead-in for the guide 12. An upturned tab 14 is secured to the rear wall (15) of the drawer (11) and a front end tab (17) extending from the web 19 engages a slot in the front wall (18) of the drawer. Ranges of dimensions for component parts are specified.
Patent GB-1314563-A (GB)
Title: Tunelling machines
IPC: E21D9/11
Filed: 1970-04-27
Abstract: 1314563 Tunnelling machines CERVOTEC DEVELOPMENTS Ltd 27 April 1970 [5 May 1969] 54796/71 Divided out of 1314562 Heading E1F Rollers, 22F, 22R are so mounted on the cutter-carrying head frame of a tunnelling machine that besides supporting the frame on the wall of the tunnel being driven by the machine they cause helical advancement of the frame as it is rotated. Preferably the rollers are divided into a forward group and a rearward group and the rearward group may be radially adjusted by associated cam and follower means to permit of steering of the machine. At least one of the rollers may be powered rotated to cause rotation of the head and one of the rollers may guide strip lining material when the material is being applied as a helically laid lining to this wall. Other rollers may corrugate the strip as it is applied to the tunnel wall. The digging means of the machine forms the invention of the referred to Specification 1314562.
Patent GB-1151120-A (GB)
Title: A Refuse Transporting Vehicle.
IPC: B65F3/22
Filed: 1967-12-05
Abstract: 1,151,120. Refuse vehicle. KELLER & KNAPPICH G.m.b.H. 5 Dec., 1967 [14 Dec., 1966], No. 55179/67. Heading B8E. A refuse vehicle 1 is provided with a rotating drum 2 which is journalled at 3 and at its rear end on two supporting rollers not shown, and is provided rigidly with an internal thread 5. Additionally it is provided with an eccentric charging hopper 8 pivoted at 9. Operation.-Material is fed into hopper 8 and therefrom falls into drum 2 the spiral 5 of which conveys the material forwards into the drum. In order to discharge material from the drum, hopper 8 is pivoted upwardly at 9 to permit the thread 5 of the drum to discharge the material from the open rear end of the drum 2. Drum 8 which is eccentric to drum 2 (when viewed from the rear) is provided with and carries a plate which closes the rest of the rear of the vehicle.
Patent GB-1168795-A (GB)
Title: Improvements relating to Roof Supports for Mine Workings
Inventor: GROETSCHEL KARL MARIA
IPC: E21D23/00
Filed: 1966-04-21
Abstract: 1,168,795. Mine roof supports. K. M. GROETSCHEL. 21 April, 1966, No. 55751/ 66. Divided out of 1,168,792. Addition to 1,134,010. Heading E1P. A self-advancing roof support comprising a base 135 on which is mounted a plurality of extensible props 138, 139, a superstructure 144 and advancing means 159, has additional stabilising means 186a to exert a lateral force on the superstructure independently of the props. The rear part 145 of the superstructure is borne on two single props 138 and a yoke 142 on the outer 141 of a multi-prop 139; the extendable long beam 148 being carried on the inner prop 140 and preloaded against the roof by a jack 185. Lateral forces on the long beam are counteracted by a leaf spring 186a pivoted to the base 135 and bearing, through an adjustment screw 189 on the jack 185. The rear end of the long beam may be positioned laterally with respect to the roof bars of the superstructure by spring loaded or manually set plungers. Leaf springs similar to 186a may be provided for the props.
Patent GB-1278969-A (GB)
Title: High sensitivity torsion balance detector
IPC: G01L3/10
Filed: 1969-11-19
Abstract: 1278969 Accelerometers: indicating apparatus ORGANISATION EUROPEENNE DE RECHERCHES SPATIALES 19 Nov 1969 [22 Nov 1968] 56558/69 Headings G1J G1K and G1N Apparatus for measuring the angular displacement of a housing 8, Fig.2, about its vertical axis due to angular acceleration comprises a closed, evacuated, cylindrical chamber 7 mounted on bearings 9 for rotation about the vertical axis and carrying internally a metal plate 2 mounted on a torsion wire 1 fixed to the end plates of chamber 7. One end 4 of plate 2 faces a metal plate 11 attached to the chamber 7. When the housing 8 is angularly displaced the friction in bearings 9 cause the chamber 7 to follow, leaving the plate 2 stationary and the capacitance between plates 4, 11 is changed, the change signal being fed through a feedback loop 10 to a motor 12 causing chamber 7 to be restored to its normal position. The angular displacement between the housing 8 and chamber 7 may be measured by any appropriate means. The other end portion 3 of plate 2 faces two metal plates 5, 6 which are supplied with a potential of +V volts and it is stated that, if V is properly chosen with respect to the physical dimensions, the arrangement produces a condition of instability which enables the transducer to be sensitive to small displacements. In one embodiment Fig.3, the deflecting plates 20 comprises two coaxial cylinders 21, 22 interconnected by radial planes 23, and the charged plates 5, 6 are formed on the faces of insulating segments 13 attached to chamber 7 and located between the radial planes 23.
Patent GB-1136660-A (GB)
Title: Improvements in or relating to alternators
Inventor: WALLENSTEIN MIHALY
IPC: H02K3/24
Filed: 1966-12-19
Abstract: 1,136,660. Cooling alternator rotor end windings. GANZ VILLAMOSSAGI MœVEK. 19 Dec., 1966 [5 Feb., 19661, No. 56775/66. Heading H2A. End windings at each end of an alternator rotor body 1 are positioned between insulating spacers 10, 101 mounted respectively on a centring tube 5 and in a retaining ring 3 fixed to the body, and coolant, e.g. gas flows through inlet and outlet. Passages 13, 15 in the centring tube 5 and associated spacer 10, channels defined by the spacers and adjacent end windings, and transverse ducts in the end winding. As shown, the ducts 7 are in the winding conductors 6, and the coolant enters and leaves the passages via axial ducts 12, 16 in the tube 5 and is exhausted by a fan 11 through bores 17 in a centring ring 4.
Patent GB-1205409-A (GB)
Title: Gas turbine engine
Inventor: HAYWARD ANTHONY PHILIP ST JOHN
IPC: F02C3/045
Filed: 1967-12-15
Abstract: 1,205,409. 409. Gas turbine engines; combustion chambers. ROLLS-ROYCE Ltd. Dec.12, 1968 [Dec.15, 1967], No. 57099/67. Headings F1G and F1C. A gas turbine engine comprises a compressor having at least one stage of hollow rotor blades over the exterior surfaces of which the air is directed, combustion equipment to which air from the compressor is discharged, and means for directing gases from the combustion equipment through the interior passages of the hollow rotor blades thereby acting to drive the rotor blades, the hollow blades being so shaped externally that they effect compression of the air flowing thereover. The engine shown comprises an outer casing 11 within which is rotatably mounted a shaft 12 supported in bearings 13, 14, the shaft carrying a rotor assembly 15, 16 on which are mounted blades 21, 23, 25, 27, these blades cooperating with stator blades 22, 24, 26 mounted on the stator casing 11. This assembly constitutes a radial flow compressor which delivers air past outlet guide vanes 28 to a toroidalshaped combustion equipment comprising a flame tube 31, the combustion gases discharging through outlet 46 and passing through the interior passages of the hollow blades 25, 27 which passages are shaped so as to function as turbine blades so that the compressor assembly is driven. The gases discharging from the blade passages pass to exhaust manifold 54 and thence to atmosphere. Useful power is taken from the shaft 12. Air flowing in the passages 34, 36 between the combustion chamber casing and the flame tube enters the flame tube through openings 43, 44 and 45. Fuel injectors 40 and an ignition device 42 are provided.
Patent GB-1359476-A (GB)
Title: Web reel stands
IPC: B65H19/18
Filed: 1971-12-10
Abstract: 1359476 Splicing webs JAMES HALLEY & SONS Ltd 10 Dec 1971 [12 Dec 1970] Divided out of 1359475 Heading B8R In a web winding stand, apparatus for attaching a running web 10 to a new core 30 on completion of a fully wound roll 13 comprises a cutter mechanism positionable by a ram 18 and including a knife 15 actuable by a ram 17, and a riding roller 20 which can be brought into engagement with the new core 30. The roller 20 is mounted on pivoted arms 19 held in a ready position by means of a latch plate 23 movable by a ram 25 to effect a quick release of the arms, which are under resilient pressure exerted by a ram 21. The rams 18, 17 and 25 are actuated in timed relationship to effect the splicing operation, and the high speed actuation of the riding roller 20 ensures that the initial turns of the web are formed tightly and evenly on the core  30. A similar quick-release mechanism may be provided for the splicing apparatus of an unwind stand of the type described in Specification 1,359,475, and this embodiment is described with reference to Fig. 1 (not shown).
Patent GB-1202919-A (GB)
Title: A controllable-speed electric drive
IPC: H02P5/50
Filed: 1967-12-18
Abstract: 1,202,919. Control of A.C. motors. SIEMENS A.G. 18 Dec., 1967 [28 Dec., 1966; 25 Feb., 1967], No. 57444/67. Heading H2J. The speeds of a plurality of three-phase synchronous or asynchronous motors, e.g. in textile machinery, are controlled in unison by a system in which a pulse train from a common speed setting device 10 is applied to digital counting stages 11, 12, or a common counting network, which control the output frequency of frequency changers 5, 6, individual to each motor or group of motors M1, M2. The counting stages are adjustable, or different counts may be selected from the common network. The speed device 10 may be adjusted, by a potentiometer 8, or it may be a piezo-electric resonator or an LC tank circuit operating at a fixed frequency The device 10 is connected to adjustable frequency dividers 14, 16 and to gating devices 15, 17 which produce an output equal to the difference between the frequencies from 10 and 14, and 10 and 16 respectively. In the event of supply failure the motors may be kept in step by reducing the set speed at 8 so that the motors run down as generators, as described in Specification 1,085,520. The frequency changers comprise thyristor rectifier/inverter combinations of variable output voltage.
Patent GB-575999-A (GB)
Abstract: 575,999. Ignition timing. UNITED AIRCRAFT CORPORATION. Nov. 1, 1943, No. 18043. Convention date. Dec. 23, 1942. [Class 7 (iv)] A radial internal combustion engine 10 has a number of radially-arranged shafts 18 each driving a magneto 16 the phase of the radial shafts relative to the crank-shaft being adjustable during running to alter the spark timing. Each of the shafts 18 carries a bevel gear driven from a common bevel ring gear 22 concentric with the crankshaft 14. The ring 22 has internal teeth engaging teeth on a ring gear 30 rotatable on an eccentric 32 keyed to the crank-shaft. Ring 30 also has internal teeth 36 coating with a concentric loosely mounted gear ring 40 which is normally prevented from rotation by external teeth on a ring 44. Rotation of eccentric 32 with the crank-shaft causes rotation of bevel ring 22 and driving shafts 18 to drive the magnetos. For timing adjustment the ring 40 is rotated by the ring 44 which has an extension 46 connected by a cross link 60 to two hydraulic pistons 60, 62, one or both of which may be actuated against a return spring to advance the ignition by the steps A B from the retarded position shown in Fig. 4.
Patent GB-1408206-A (GB)
Title: Sound pick-up device for playing back records of small diameters  on electric gramophones or any other reproducing apparatus  provided with automatic stop means
IPC: G11B17/022
Filed: 1972-12-19
Abstract: 1408206 Playing small gramophone records MAV (METHODES AUDIO-VISUELLES) 19 Dec 1972 58628/72 Heading G5R Records which are too small to be played by gramophone 10, because of its automatic stop facility, are played on an auxiliary turntable 26 driven by a belt 25 from a pulley 24 frictionally coupled to the primary turntable 12. The auxiliary turntable and the pulley are mounted on a plate 21 which is supported by the centre spindle 13 of the turntable and a pillar 28 which is adjustable in height and is disposed on the motor board 11. The auxiliary turntable is disposed such that the grooves of the small record are located in the sector of the primary turntable swept by the pick up arm 15, 16.
Patent GB-1367480-A (GB)
Title: Drilling well bores
IPC: E21B7/00
Filed: 1971-12-20
Abstract: 1367480 Boring earth &c TENNECO OIL CO 20 Dec 1971 [8 April 1971] 58961/71 Heading ElF Rotary drilling apparatus comprises a rotary table 24 vertically reciprocated by the rods 22 of rams 21 mounted on a base 10 which fixedly supports a clamp 25. The clamp comprises opposed rings of slips 26 moved by jacks 28 to engage or disengage with the drill string 12, the arrangement being that when the slips are engaged the string is fixed against both upward and downward movement. The table has a clamp 40 driven by a hydraulic motor mounted on the table and of simliar construction to that of the clamp 25. Drill feed pressure may be controlled by the rams although drill collars may be added to the string. The apparatus may be used for adding pipe sections to or removing them from, the string, a swivel 17a being fitted to an additional section whilst drilling proceeds using a swivel 17. The top of the well has a stripping sleeve 71. and blow out preventers 72, 73.
Patent GB-1188460-A (GB)
Title: Improvements in or relating to Keyboard Equipments
Inventor: PETSCHEL GUNTER
IPC: H04L13/16
Filed: 1968-12-13
Abstract: 1,188,460. Keyboards for printers. GERATEWERK KARL-MARX-STADT VEB. 13 Dec., 1968, No. 59561/68. Heading B2F. A keyboard includes a lock bar 1 tiltable about its lower edge between two locking positions, in each of which it prevents operation of a respective predetermined number of keys, and two shift keys 16 and 17 each arranged to tilt the lock bar into a respective one of its locking positions. Each shift key 16 or 17 carries a rider 19 having a sloping face adapted to tilt the lock bar into the associated locking position. Each character key 13, 14, 15 carries a stop 18 in one of two positions, which engages the upper edge of the lock bar and thereby prevents operation. Key 15 (e.g. a reserve key) has stops 18 in both positions to prevent operation of the key in both locking positions of the lock bar. All the key levers are provided with two holes 21 and 22, and with two cutaway portions 23 and 24, which serve for the attachment of plastics stops 18 or riders 19.
Patent GB-1283986-A (GB)
Title: Improvements in or relating to relief valves for pressure medium systems
IPC: B60T17/18
Filed: 1969-12-09
Abstract: 1283986 Valves; fluid pressure brakes ROBERT BOSCH GmbH 9 Dec 1969 [10 Dec 1968] 59993/69 Headings F2F and F2V In a pressure relief valve having an inlet 4 and an outlet 10, the closure member 7 is formed from a sheet metal part 15 and a rubber part 21, with the rubber part having an axially directed annular extension 11, a portion 20 of which is sealingly slidable along a housing extension 19. With the above construction, communication between the fluid flow path and the valve spring- chamber 12 is inhibited and, as a result of appropriate dimensioning of the seat 6 and the extension 19, the effective valve area does not vary after opening of the valve. In modifications (Figs. 2 and 3, not shown), the annular extension 11 may take the form of a bellows (29), and the inlet port 5 may contain a T-shaped throttling member (32) which is arranged to be in operative communication with the closure member by means of an additional spring (34) and which itself can act as a relief valve. The valve is stated to be primarily suitable for use in brake systems where it serves to maintain a residual pressure in the part of the system connected upstream of the valve. When so applied, the valve is adjusted to open at a threshold pressure lower than that which is still sufficient for braking. If a leak occurs in the brake system downstream of the relief valve whilst that upstream of the relief valve is intact, pressure will drop not only downstream of the valve but also upstream. When the pressure upstream of the valve has dropped below the threshold pressure, the relief valve will close and cut off the defective part from the intact part which will continue to function provided that there is sufficient pressure upstream.