baber/WOPTO huggingface dataset:
Patent GB-987756-A (GB)
Title: Improvements in and relating to the insulation of coil windings in high-voltage dynamo-electric machines
Inventor: ROTHERT HUBERT
IPC: H02K3/32
Filed: 1961-07-18
Abstract: 987,756. Insulation for dynamo-electric machines. LICENTIA PATENT-VERWALTUNGS G.m.b.H. July 18, 1961, No. 26017/61. Drawings to Specification. Heading H2A. In a method of insulating the coil windings of a high-voltage dynamo-electric machine there is first wrapped about the slot portions a ribbon consisting of micanite bonded to a glassfibre fabric with an epoxy resin, the wrapping thereafter being vacuum-impregnated with an epoxy resin at an elevated temperature, so as to expel residual air, a similar ribbon being subsequently wrapped about the end portions which are then also impregnated with an epoxy resin at an elevated temperature, there being no need for vacuum-impregnation of these portions as the risk of breakdown therein is small. The elevated temperatures employed are preferably sufficient to cure the epoxy resin.
Patent GB-615534-A (GB)
Title: Improvements in centrifugal valves for hydraulically controlled clutches
IPC: F16D43/284
Filed: 1945-10-05
Abstract: 615,534. Fluid-pressure servomotor-control systems; centrifugally-actuated valves. SOC. DES BREVETS KEGRESSE, S. E. K. Oct. 5, 1945, No. 26025. Convention date, June 19, 1944. [Class 135] [Also in Group XXIV] A centrifugal valve for a hydraulically-controlled friction clutch comprises two relatively movable members each urged by a separate spring oppositely to the centrifugal force. When the clutch plate 12 is at rest, the extension 5 of the valve 1 closes the fluid admission and discharge ports 17, 18, respectively, so that fluid pressure via the duct 14 operates the piston 15 to engage the clutch. As the engine speed increases to idling speed, the assembly of valve 1 resiliently coupled to a mass 8 through a spring 10 moves outwards against the spring 13 until a shoulder 9 on the mass abuts the end of the lining 11, the valve 2 closes the port 19, and the ports 17, 18 are opened to release pressure fluid from behind the piston. If the speed further increases, the valve 1 moves outwards against the spring 10 and fluid pressure acting in chamber 20 via the holes in extension 5, until first the port 18 and then the port 17 are closed to produce a gradual engagement of the clutch. At the instant port 18 is closed, the port 19 is opened and drains fluid from the chamber 20 so that the extension 5 of the valve sharply abuts the outer end of the lining. As the speed decreases, the valve 1 moves inwards, closes port 19 and pressure fluid in chamber 20 sharply opens port 18 to disengage the clutch at a speed lower than that for engagement. Specifications 489,317 and 496,466, [Group XXIV], are referred to.
Patent GB-903518-A (GB)
Title: Improvements in or relating to the regulation of liquid flow
Inventor: TRINKLER ALFRED
IPC: F02K3/00
Filed: 1960-07-26
Abstract: 903,518. Fluid-pressure servomotor-control systems. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 26, 1960 [July 28, 1959; June 22, 1960; July 8, 1960], No. 26033/60. Class 135. [Also in Group XXVI] A device controlling the flow of a fluid, such as the flow of fuel to a gas turbine, comprises a piston regulator 4, Fig. 3, controlling the flow of fluid from a pump 1 through slots 3. The piston regulator 4 is subjected on one end face to the pressure in chamber 10 on the downstream side of the slots and on its other face to the pressure in chamber 5 which is suppled by the pump through a restriction 7 and the leakage from which is controlled by a regulating valve comprising a ball 9 slidable in a bore 30. The ball 9 contacts a three-dimensional cam 19 which is rotated in response to a variable characteristic, such as compressor outlet pressure, and is movable axially by manual operation. As shown, the regulating valve may be mounted on an arm 38 pivoted at 39 and provided with the necessary fluid-flow passages. The arm 38 carries an adjustable member 37 bearing against an adjustable plate 35 mounted on a rod attached to the piston regulator 4. In operation, as the position of the cam 19 is varied, the ball varies the leakage from the chamber 5 and the piston regulator assumes a new position and in so doing restores the position of the valve relative to the cam surface. A further valve (not shown), is provided for maintaining a constant pressure drop across the slots 3. Adjustment of the plate 35 varies the initial setting of the piston regulator while adjustment of the member 37 varies the movement of the piston regulator for any specific movement of the cam. In a modification without the adjustments provided by plate 35 and member 37, the regulating valve is positioned on the end of the rod attached to the piston regulator. In a further modification in which the valve meters fuel for post combustion, the ball 9, Fig. 7, of the regulating valve is controlled by a lever in response to a variable characteristic, such as compressor delivery compressor, while an extension 50 of the rod carrying the regulating valve is spring-loaded into contact with a cam 19 formed between the piston regulator 4 and a second piston member 4<SP>1</SP>, the cam providing the follow-up as above when the piston regulator moves in response to variations in the characteristic. The cam may be a three dimensional cam, as shown, in which case rotation of the cam by the lever 70 provides a manual adjustment or if manual control is not required, the cam is formed by a surface of revolution. A piston 14 forms the valve providing a constant pressure drop across the slots 3, this piston being loaded to move to the left by a spring 16 and the pressure in the chamber 10 and loaded to the right by the pressure upstream of the slots through line 15.
Patent GB-1107116-A (GB)
Title: Apparatus for adjusting the loading gauge in jib cranes to various operational conditions and/or to crane systems
IPC: B66C23/90
Filed: 1965-06-21
Abstract: 1,107,116. Preventing overload in jib-cranes. DEMAG - BAGGERFABRIK G.m.b.H. 21 June, 1965 [20 June, 1964], No. 26171/65. Heading B8B. An analogue computer 6 mounted in the cab 2 of a jib-crane continuously compares the overturning moment acting on the crane with the maximum permissible load.- The computer operates from the battery provided for the crane engine. The tension in the luffing cable is measured by a dynamometer 10 and fed into the computer, and the jib angle is measured by an electrical device 11. Knobs 7, 8 are provided for adjusting the computer for various operating conditions of the crane. Voltages which are proportional to the actual and permissible loads are compared by the computer.
Patent GB-719604-A (GB)
Title: Improvements in or relating to the production of thermo-plastic tubing
IPC: B29C48/03
Filed: 1952-10-17
Abstract: 719,604. Making thermoplastic tubing. LAC RINOID PRODUCTS, Ltd., and HAGEN, R. June 26, 1953 [Oct. 17, 1952], No. 26173/52. Class 87(2) Relates to covering articles, e.g. handles, with thermoplastic tubing and consists in passing a length of such tubing, e.g. of polyvinyl chloride, intermittently through a tubular guide 3 having a portion 3b of progressively increasing diameter, in the direction of movement of the tubing, to a size slightly greater than the diameter of the contractile tubing to be produced, heating the tubing while within the guide means and intermittently applying fluid under pressure to the tubing to expand it against the guide means, the tubing being passed through the guide means when the fluid pressure is ineffective for the purpose stated. When thermoplastic tubing preformed by this process is reheated it contracts to its original size, which property is of use in the above and other applications. The tubing is first wound on a draw-off drum 1, the leading end to be wound on being stopped up. The other end is drawn off the drum and passed through the guide 3, which is preferably a canvas hose. The hose is heated by a steam jacket 2. except for a length 3c which projects from the outlet end of the jacket for cooling. The tubing is wound on a take-up drum 6, the vertical spindle 10 of which is also a feed pipe for compressed air which enters the tubing through an air line 9. The operator pulls the tubing a convenient distance through the hose and then operates a foot valve 11, whereby compressed air enters the tubing and expands it against the heated guide. The drum 1 may have a ratchet which is freed by the operator through a cable 13, as required. As the tubing is pulled through by stages in this way it is preformed as required. Oil, electric or dielectric heating may be used alternatively to steam heating. Specification 437,662 is referred to.
Patent GB-481298-A (GB)
Title: Improvements in and relating to apparatus for use in hair waving
IPC: A45D6/02
Filed: 1936-09-26
Abstract: 481,298. Hair - waving appliances. CALDERON, M. Sept. 26, 1936, No. 26198. [Class 131] A hair winder for use in permanent waving comprises a spring dip 10 having a narrow end adapted to clip about the curler 11 and a wide end adapted to accommodate the tress of hair being wound. The tress, having been attached to the curler, is passed between ears 17 on the clip and a pivoted wire frame 15 is swung over to hold the tress by means of a grooved roller 20, the ears 17 having spaced notches to secure the frame in various positions according to the tension desired. The winder is now revolved about the curler to wind the tress on the curler. The edge of the winder and/or the wire frame may be serrated, and spring tongues may increase the friction. In place of the frame 15 an arm pivoted on one of the ears may be used.
Patent GB-930597-A (GB)
Title: Improvements in spectacle frames
IPC: G02C5/22
Filed: 1961-07-19
Abstract: 930,597. Spectacle frames. OCCHIALCROM G. ZANDERIGHI S.r.L. July 19, 1961 [Aug. 5, 1960], No. 26216/61. Class 97 (1). A spectacle frame comprises a hinge connecting the side arms to the frame, a bush located in, and swingable about a pin within, a cavity, the cavity being formed in the frame or in the side arms, and a resilient member located between a wall of the cavity and the bush which allows the side arms to be opened but urges them towards the closed position. As shown, a hinge 11 has on side secured to a side arm 15 and the other side is formed as a bush 10 housed in a cavity 14 in a frame 13 and swingable about a pin 12 secured in the frame. A spring 12 urges the bush to move the side arms towards the closed position. The spring may be replaced by a piece of resilient material, e.g. rubber, Figs. 6 and 7 (not shown).
Patent GB-1312811-A (GB)
Title: Method for reducing damage at metal interfaces
IPC: H01L21/768
Filed: 1970-06-01
Abstract: 1312811 Welding by pressure INTERNATIONAL BUSINESS MACHINES CORP 1 June 1970 [30 June 1969] 26253/70 Heading B3R [Also in Division H1] A method of reducing damage due to vacancies appearing at the interface between two metals having different diffusivities when the metals are maintained at an elevated temperature to cause bonding to take place at the interface, comprises passing an electric current across the interface of such a magnitude and in such a direction as to reduce the diffusion across the interface of the metal of greater diffusivity and increase the diffusion across the interface of the metal of lesser diffusivity so as to bring said two diffusion into substantial equality, Fig. 6 (not shown).
Patent GB-449062-A (GB)
Title: Improvements in method and means of casting metals
IPC: B22D13/06
Filed: 1935-09-23
Abstract: 449,062. Casting metals and non-metals. JUNGERSEN, T. G., 51, Burlington Street, Mimico, Ontario, Canada. Sept. 23, 1935, No. 26300. Convention date, Sept. 27, 1934. [Class 83 (i)] [See also Group V] A model 3 of a required article of jewelry &c. is made in wood, metal, &c. and placed on a block 1 of unvulcanized rubber or other flexible material, moulded to form a parting surface having recesses 2. A top section 4 of rubber &c. is then built thereover and the gate g formed. The whole is then vulcanized, the model removed and wax patterns are cast therein centrifugally and removed without damage. One of these wax patterns is invested in a fluid mass, after dipping in silica or plaster of Paris, the investment is dried and heated to burn out the wax, and the article required is cast therein centrifugally.
Patent GB-890859-A (GB)
Title: Electrical musical instrument
Inventor: ANDERSON WALTER JOSEPH
IPC: G10H1/12
Filed: 1958-08-15
Abstract: 890,859. Electrophonic musical instruments. LOWREY ORGAN CO. Aug. 15, 1958, No. 26329/58. Class 88 (2). An electrical tone generator produces a signal including frequencies n and 2n and has two output paths, one of the paths including means for substantially eliminating frequency n from the signal therein. As shown, Fig. 1, band-pass filters A-D, one for each half-octave, derive pure fundamentals for the notes of two octaves from the fundamentals and second harmonics of the complex oscillations produced by the generators of one octave. In a modification, Fig. 2, the notes of one octave are obtained by filtering out the second harmonics from the octave below to form the fundamentals and adding the complex oscillations from the generators of the octave above.
Patent GB-521487-A (GB)
Title: Means for utilising pulverised coal for heating furnaces
IPC: F23K3/00
Filed: 1938-11-14
Abstract: 521,487. Pulverulent-fuel burners. BAILLOT, A. Nov. 14, 1938, No. 26399/39. Divided out of 33035/38. [Class 75 (i)] [Also in Group XII and XXX] A pulverulent fuel burner 40, comprises a nozzle formed of a series of spaced perforated washers 43. The washers are of decreasing size and are provided with apertures of decreasing size. The washers are connected by straight or spiral blades 44 and the end washer is protected by a refractory lining.
Patent GB-376097-A (GB)
Title: Improved production of pattern effects on acetate silk
IPC: D06Q1/02
Filed: 1931-09-22
Abstract: Acetate silk fabrics are printed with a thickened paste containing agents which accelerate the dulling, dried, and the dull effects produced by a passage of short duration through a hot solution, at a temperature near the boiling point, containing small quantities of neutral or slightly alkaline inorganic salts, the said salts acting as protectors against the dulling action on the unprinted parts. Dulling agents mentioned are aliphatic chlorinated hydrocarbons, alcohols, esters, and ketones; aromatic amines, aldehydes, phenols, and naphthols; and heterocyclic substances such as pyridine and quinoline.  The protective salt may be, e.g. common salt, sodium sulphate, or potassium nitrate. Examples are given in which, (1) a mixed acetate silk fabric is printed with a composition containing glycolchlorhydrin and tragacanth, dried, and passed through a 1 per cent solution of sodium sulphate at 90 DEG  C., and (2) a knitted acetate silk fabric is printed with a composition containing pyridine and gum arabic, dried, and developed in a 1 per cent solution of potassium nitrate.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use, for developing the dull lustre, of hot water; it is also stated that the neutral or slightly alkaline salts are not necessarily inorganic, sodium acetate being mentioned.  An example is given in which an acetate silk fabric is printed with phenol and gum arabic, dried, and treated with water at 95 DEG  C.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1269528-A (GB)
Title: Photographic cameras
Inventor: WELZEL HERBERT
IPC: G03B17/30
Filed: 1969-05-23
Abstract: 1,269,528. 528. Photographic cameras. KOMBINAT VEB PENTACON DRESDEN KAMERAUND KINOWERKE. May 23, 1969, No. 26459/69. Heading G2A. A photographic camera has a film receiving chamber 7 for film 15 entering from a supply spool by way of a film gate, wherein arranged in the receiving chamber are two circularly bent leafsprings 8, 9 which act only upon the film edges and serve to assist the formation of a film roll, and a catching device for the film tongue consisting of a freely rotatably mounted spindle 12 and at least two curved arms 14 attached to the spindle, the concave surface of the arms facing the direction of entry of the film tongue, the width of the arms being equal to or greater than the distance between the springs and the edges of the arms forming the film roll core protrude slightly beyond the circle described by the leaf-springs in the region between the springs at the beginning of the winding operation. Segments (16), Fig. 1 (not shown), inter-connect the arms to provide lateral guidance of the film tongue. A hinged, transparent lid 18 closes the receiving chamber independent of the position of the camera back 6.
Patent GB-442953-A (GB)
Title: Improvements in governing devices for controlling the flow of fluid through a conduit
IPC: F02D9/00
Filed: 1934-09-14
Abstract: 442,953. Speed governors. LEIBING AUTOMOTIVE DEVICES, Inc., 224, Natoma Street, San Francisco, U.S.A. Sept. 14, 1934, No. 26480. Convention date, Aug. 2. [Class 57] [See also Groups XXIX and XXXII] Apparatus for controlling the flow of fluid in a conduit comprises a plate 21 arranged eccentrically in the conduit and two plates 28, 29 arranged at an angle to each other, preferably 15‹, and pivoted to the conduit in the same plane as the plate 21. In the open position the plate 29 engages an abutment 81. The plate 28 is curved to assist in the action of the flow of the fluid to close the valve, which closing action is resisted by the plate 29. An inertia member 47 is secured to the valve spindle and is loaded by an adjustable spring 53 and the loading is increased by the spring 72 when the valve 28, 29 nears its closed position, to prevent fluttering. The abutments 521, 54 of the spring 53 are provided with helical grooves of greater pitch than the spring when it is fully extended and the spring is wound on. The engaging side 76 of the groove being normal to the axis of the spring to provide a suitable recess. A plunger 103 is positioned to engage an abutment 105 and the pressure in the conduit is transferred by ports 106, 107, 108 to a cylinder 99 containing a piston 101 engaging the plunger 103. Atmosphere is admitted to the cylinder 99 through the filter 111 and port 109. Excessive vacuum in the conduit results in the piston 101 and plunger 103 moving against the spring 112 to close the valve. The apparatus may be employed in the induction pipe to govern the maximum speed of an internal-combustion engine.
Patent GB-1205364-A (GB)
Title: Reinforced plastics spool
Inventor: HAFNER ERICH
IPC: B65H75/14
Filed: 1969-05-23
Abstract: 1,205,364. Reinforced plastics spools. E. HAFNER. 23 May, 1969 [15 June, 1968], No. 26488/69. Heading B8M. A reinforced plastics spool comprises a pair of flange discs of plastics material, a spool core and a reinforcing metal insert 7 for each flange disc, each of the metal inserts having a plurality of apertures 8, 9 through which plastics material from the respective flange disc extends, the edges of the apertures being embedded in the plastics material. Each flange disc is preferably double-walled, the outer wall 1 being provided with the metal insert 7, and the plastics material extending through the apertures 8 forming plugs 10 which are adhesively secured to the other flange wall 2. The outer flange wall 1 and the reinforcing metal insert 7 are preferably profiled in the peripheral direction. In an alternative embodiment, the outer flange wall and respective metal insert extends at an angle to the inner flange wall, ribs being provided on the outer flange wall on the side adjacent the inner flange wall so that the parts can be adhesively secured. In a further embodiment each flange disc is provided with two spaced reinforcing metal inserts. The outer flange wall 1 is provided with an axially extending annular rim 6 forming the hub of the spool. The core may be strengthened by a further annular rim 11 spaced radially outwards from the rim 6 and contacting the radially inner face of the core.
Patent GB-754211-A (GB)
Title: Improvements in or relating to hydraulic transmission systems for driving winches
Inventor: HUSE HANS VESTRE
IPC: B66D1/08
Filed: 1952-10-22
Abstract: 754,211. Hydraulically - driven winches. HYDRAULIK AKTIESELSKAP. Oct. 22, 1952, No. 26503/52. Class 78 (5) A winch drum 3 is driven by two hydraulic motors A, B driven from a pump (not shown) by hydraulic fluid controlled by a single valve 10, such that the supply to one motor increases as the supply to the other decreases. As shown, the fluid passes to the motors through pipes 12 and returns through pipes in base 1. Handles may be applied to shafts 7 to drive the winch if the motors fail. Specification 655,664, [Group XXIX], is referred to.
Patent GB-773316-A (GB)
Title: Improvements relating to reflectors for electric and other heaters
Inventor: HILLMAN FRANK LESLIE
IPC: F24C7/06
Filed: 1953-09-26
Abstract: 773,316. Electric fires; reflector stoves. SIMPLEX ELECTRIC CO., Ltd. Sept. 10, 1954 [Sept. 26, 1953], No. 26526/53. Classes 39(3) and 126  The reflector of a heater having one or more elements heated by electricity, gas or vaporized oil is of trough-like form having open ends and is stiffened by a peripheral flange or bead along the edges of the reflector at its ends or along the whole periphery of the reflector. As shown, a sheet metal reflector 11 has a rearwardly extending integral flange 12, 13 which receives screws 17 for securing a wire guard 16 and a cover member 18 which encloses terminals and connections for the pencil type element 10. Specification 773,317 is referred to.
Patent GB-1486180-A (GB)
Title: Fuel priming pump
IPC: B29C37/00
Filed: 1976-06-25
Abstract: 1486180 Reciprocating pumps CATERPILLAR TRACTOR CO 25 June 1976 [20 Oct 1975] 26635/76 Heading F1A A fuel priming pump for an I.C. engine comprises a piston 18 reciprocated by a handle 26 to draw fuel through inlet check-valve 28 and deliver it through outlet check-valve 32, leakage past the piston in its innermost inoperative position being prevented by sealing means comprising, in the embodiment shown, a lip seal 48 engageable with a piston-rod extension 40 in the position shown, the seal permitting flow from beneath piston 18 to outlet valve 32, but preventing reverse flow. In another embodiment, Fig. 6 (not shown), the piston has an annular skirt supporting a seal (88) which engages the periphery of a tubular member (86) projecting into the bottom of the pumping chamber. The piston is locked in its innermost position by bayonet like engagement between projections (58), Figs. 2 to 4 (not shown), on the piston-rod and detent members (60) on a disc 52 in barrel 12, a spring 66 assisting the locking action. A buffer spring (92), Fig. 6 (not shown) may be provided above piston 18. A pressure relief valve (70), Fig. 5 (not shown), may be provided for connecting the pumping chamber to the suction line upstream of the inlet valve 28.
Patent GB-1032266-A (GB)
Title: Antihypertensive compositions comprising pyrimidyl benzenesulfonamide derivatives
IPC: A61K31/505
Filed: 1964-06-26
Abstract: Antihypertensive compositions comprise <FORM:1032266/A5-A6/1> or an acid-addition salt thereof together with solid or liquid carriers. The compositions may be administered orally or parenterally.