baber/WOPTO huggingface dataset:
Patent GB-1528557-A (GB)
Title: Pressure limiting arrangement for a hydraulic clutch inching valve
IPC: F16D48/02
Filed: 1977-03-04
Abstract: 1528557 Clutch control TOWMOTOR CORP 4 March 1977 [28 June 1976] 09194/77 Heading F2C In a clutch control for a motor vehicle wherein clutch engaging pressure 19 is modulated by a manually controlled inching valve 23, clutch slip in the higher speed ranges is prevented by an override 32 which is responsive to modulated clutch engaging pressure and moves the inching valve 23 to a clutch fully engaged position when the modulated engaging pressure exceeds a predetermined value. Depression of an inching pedal 28 closes a switch 47 to energize a solenoid 33 which moves a plunger 38 right to compress a spring 42 and thus permit pressure modulating movement of the inching valve 23. When the modulated pressure exceeds the predetermined value a switch 48 is opened to de-energize the solenoid 33 whereupon the spring 42 moves the inching valve 23 to the position shown in which maximum engaging pressure is supplied to the clutch.
Patent GB-514046-A (GB)
Title: Improvements in machines or apparatus for shaping metal tubes, containers and the like
IPC: B21D22/18
Filed: 1938-04-25
Abstract: 514,046. Spinning; tube expanders. DOVE, J. A. April 25, 1938, Nos. 9251 and 27793. [Class 83 (iv)] A metal tube or container 16 is bulged out to the required shape by (elliptical) rollers 14 spinning round about a central axis, their outward position, and hence the shape of the container, being controlled by a central rod 17 with taper end, as in Fig. 1, where the counterweights 15 are heavier than the rolls 14, or where springs give a similar effect; or the end of the rod 17 bears on a chain 21 the longitudinal movement of the rod 17 being cam controlled as in Fig. 2. The rolls 14 may be rotatable on their arms at an angle to the rotation of the spider to give a polishing effect. The rolls may have surfaces to produce hammered &c. markings on the container. To prevent chattering of the rolls their arms 12, Fig 7, are steadied by slope ended bars 31 bearing on sloped recesses in the arms 12 to maintain a positive outward thrust to the rolls. Similar cross bars 31, Fig. 8, may lock the rolls in one pre-determined outward position. The container is held between a resiliently mounted end support 37 and a bottom support 41 moved (if necessary automatically) by pin and cam slot 44 to grip the work, these supports having flanges or recesses suitable to the container ends. Specifications 486,002, 486,083, 513,316 and 514,045 are referred to.
Patent GB-446704-A (GB)
Title: Internal combustion engine of the four stroke cycle type for aircraft
IPC: F02B57/08
Filed: 1935-03-25
Abstract: 446,704. Four-stroke-cycle engines. SOC. ANON. LE MOTEUR SATURNE, 6, Rue Rougemont, Paris. March 25, 1935, No. 9261. Convention date, May 28, 1934. [Class 7 (ii)] Cooling; lubricating passages; driving-gear; radial-cylinder engines.-In a radial revolving- cylinder engine the same pair of diametrallyopposed ports is used for admission and exhaust in association with alternately-arranged admission and exhaust passages in stationary annular guide 9 secured in the frame of the engine. Slipper blocks 10 travel in the guide 9 and are formed with spring-containing recesses 38 and central recesses 39 into which project spring- pressed sleeves 8 closely fitting the cylinder ports. Annular admission and exhaust manifolds 11, 12 are situated in proximity to the guide 9. Mixture is supplied to the passage 11 through a blower 33 from a double - carburetter. Streamlined ribs 28, produce a flow of air axially into the cylinder block, the flow being deflected radially to emerge by openings 30. A slotted cover 27 permits access of air to the rotating ribbed cover 26 of the gear-box. Spur gearing causes the crankshaft to make nine revolutions for each revolution of the cylinder block in the opposite direction. A pinion 21 on the crank-shaft meshes with pinions 22 having a second set of teeth engaging the toothed ring 23 in the cylinder block, and also a central pinion 24 on the propeller shaft 25 which is thereby driven at one-sixth the speed of the crank-shaft. Centrifugal force transfers oil from the gear box or crank chamber through passages 16, 17 to a reservoir 18 communicating with the slipper block surfaces. According to the Specification as open to inspection under Sect. 91, gas tightness between the slipper blocks and guides is improved by inclining their peripheral surfaces towards the cylinder axis. Lubricant may be supplied to these surfaces under pressure through a duct leading to an annular groove around the guide, and thence through openings to the surfaces. Excess lubricant emerges at the other edges of the bearing surfaces, is thrown out centrifugally and collects in a trough communicating with the lowest part of the engine. Cooling may bo effected by helical ribs on, and inclined vanes between the cylinders. This subject-matter does not appear in the Specification as accepted.
Patent GB-1261208-A (GB)
Title: Indoor ball game
Inventor: GIBBS GEOFFREY MAXWELL
IPC: A63B67/00
Filed: 1968-02-27
Abstract: 1,261,208. Table-tennis type game. G. M. GIBBS and A. H. PICKWOAD. 27 Feb., 1969 [27 Feb., 1968], No. 9316/68. Heading A6H. A game similar to table-tennis in which a ballis struck in turn by opposing players using bats or the like is played on a plane horizontal surface 16 having rear and side walls 20, 24, 25 which are inclined with respect to surface 16 and a net 37 which is normal to rear wall 20 and bisects surface 16. The players are required to strike the ball so that it bounces on surface 16 and rear surface 20' in a prescribed manner. Further nets may be added, one to extend along top edge of wall 20 to capture a ball missing said edge, and one to replace the part of wall 20 below line 36.
Patent GB-1135437-A (GB)
Title: Polyamides
Inventor: BURROWS HAROLD GEORGE
IPC: C08G69/48
Filed: 1966-03-03
Abstract: 1,135,437. Polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Jan., 1967 [3 March, 1966], No. 9337/66. Heading C3R. The dye-affinity of linear polyamides is improved by reacting them with ammonia at a temperature between 200‹ C. and the softening- point of the polyamide. The polyamide may be (a) that of an aliphatic or aromatic diamine and an aliphatic or aromatic dicarboxylic acid or (b) that of an aliphatic aminocarboxylic acid or its corresponding lactam. The polyamide may be in the form of chips, flakes, films, threads or yarns. It may contain known compounds for increasing the dye-affinity of polyamides, e.g. phenylphosphorous acid, N-(#-aminomethyl)- piperazine, or N: N<SP>1</SP> - bis - (3 - aminopropyl) - piperazine and N: N<SP>1</SP>-bis-(5-carboxypentyl) - piperazine. Examples describe the treatment of (1) polyhexamethylene adipamide, (2) a copolymer obtained by copolymerizing hexamethylene diammonium adipate with 1 mol per cent of the salt of N: N<SP>1</SP>-bis-(3-aminopropylpiperazine and adipic acid.
Patent GB-1097295-A (GB)
Title: Slide rails for tunnel furnaces
IPC: B01D61/46
Filed: 1966-03-03
Abstract: 1,097,295. Skid rails. KOPPERS-WISTRAOFENBAU G.m.b.H. March 3, 1966 [April 6, 1965], No. 9350/66. Addition to 970,244. Heading F4B. In a tunnel furnace having skid rails comprising skids 12 separated from cooled bearer tubes 1 by refractory blocks 10, held in place by members 3 surrounding the blocks 10 and resting on the tabs 1, the holders 3 at the delivery end of the furnace are releasably secured to the tubes 1 for a distance equal to the greatest width of material to be treated, by pins 22 passing through sleeves 23 formed in the tube 1. The skids 12 have dove-tailed lower parts 11, and a depending leg engaging a slot in the front of the holder 3 (Fig. 1, not shown). The sides of the holder 3 are formed with recesses to receive a tamped refractory material 21.
Patent GB-353866-A (GB)
Title: Improvements in the manufacture and production of polymerised vinyl alcohols
IPC: C08F8/12
Filed: 1930-03-24
Abstract: Polymerized vinyl esters and vinyl alcohol.-Vinyl esters such as the acetate, chloracetate, and chloride, or mixtures of them, are polymerized at 40-160 DEG  C. in the presence of organic or inorganic "per" compounds, such as barium peroxide, benzoyl peroxide, percarbonates, persulphates, and perborates, together with organic acid anhydrides, but in the absence of solvents or diluents.  The process is continued until the products are practically insoluble in the usual oxygenated organic solvents such as ethyl acetate, ethyl alcohol, and acetone, or are only capable of swelling therein.  The products are then saponified to produce polymerized vinyl alcohol which is still soluble in water but gives highly viscous solutions and is suitable for dispersing agents for the production of dye pastes or like dispersions, and for sizing and dressing agents.  The quantity of the peroxide or the like may be 0,1 to 10 per cent, the anhydride being used in 5 to 10 times this quantity.  In the examples (1) vinyl acetate is boiled under reflux with sodium perborate and acetic anhydride, additional vinyl acetate being added as soon as the polymerization has started; the polymer produced is heated until insoluble and is then heated with 2 per cent hydrochloric acid, the alcohol being obtained in solid form by evaporation, preferably in vacuo; (2) the vinyl acetate polymer produced in example 1 is allowed to swell in anhydrous ethyl alcohol, and concentrated sulphuric acid is added, yielding ethyl acetate and polymerized vinyl alcohol, which precipitates, and is filtered off; it may be freed from acid by dialysis.  Specifications 15271/14 and 337,806, [both in Class 2 (iii), Dyes &c.], are referred to.ALSO:A vinyl ester such as the chloride, acetate, or chloracetate, or mixtures of such, is heated with an organic acid anhydride and a "per compound" such as barium peroxide, benzoyl peroxide, or a persulphate, percarbonate, or perborate, in the absence of solvents or diluents, until the polymerized ester is insoluble in the usual oxygen-containing solvents.  The ester is then saponified by dilute acid.  By evaporating the solution thus prepared there is obtained a polymerized vinyl alcohol suitable for use as a sizing agent. Specifications 15271/14 and 337,806, [both in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-303310-A (GB)
Title: Improvements in or relating to ignition magnetos for internal combustion engines
IPC: H02K21/18
Filed: 1928-03-28
Abstract: 303,310. Cardellino, M. M. March 28, 1928. Addition to 269,374. Magnetoelectric machines.-In the ignition magneto of the parent Specification the coil 10 is disposed in an axial plane of rotation and its core is connected symmetrically to two laminated pole pieces 6 between which the magnet 1 rotates. The magnet comprises a bundle of elliptical shaped cobalt-steel plates with truncated ends to which are secured laminated polepieces 3 of soft iron arranged not to project beyond the edges of the magnet and the whole is secured between non-magnetic members 4. The magnets have a central hole for the passage of a hollow shaft 2, and the magneto may be mounted in overhang on a shaft, for example, on an extension of the dynamo shaft. The rotor polepieces subtend an. angle of about 60‹, and the stator pole-pieces an angle of about 124‹. Connection between the core 9 and the fixed polepieces is effected by laminated members 8 which are so shaped by thinning down the laminae as to converge at the places of contact with the core 9. The winding 10 comprises a single coil of about 75,000 turns, earthed at one end and connected at the other end to a distributor. In order that the spark may be produced as nearly as possible at the instant when the trailing pole tips of the rotor are passing the stator pole tips, the air-gap should be kept small.
Patent GB-100845-A (GB)
Title: Improvements in Life-saving Jackets.
Inventor: WHEELER FRANK CAMPBELL
IPC: B63C9/115
Filed: 1916-07-04
Abstract: 100,845. Wheeler, F. C. June 14, 1915, [Convention date]. Body attachments, buoyant. - A fabric jacket, opening at the front, is fitted with spaced slabs 11, 12, 13 of cork or like buoyant material arranged at the front, back, and sides, the front slabs 13 being longer than the back one 11, and the side slabs 12 being shortest. The webs 14 between the slabs allow the jacket to be worn by persons of different size. The jacket is secured on the wearer by means of shoulder straps or cords 17, secured to the centre of the upper edge and passing through rings 18 at the front, and by means of a cord 20 passing through rings 21. For storage, the jacket is folded as shown in Fig. 2 and tied by means of the cord 20.
Patent GB-511080-A (GB)
Title: Improvements relating to the construction of tunnels
IPC: E21D11/10
Filed: 1938-03-28
Abstract: 511,080. Tunnels. MURRAY, J. March 28, 1938, No. 9435. [Classes 68 (i) and 85] A reinforced concrete tunnel is constructed in situ and in sections by depositing liquid or plastic concrete between an inner metal shuttering, which may be removed subsequently, and an outer metal diaphragm extending at least over the roof and side walls of the tunnel, the lining being reinforced by embedding therein a preferably imperforate metal diaphragm. The floor of the tunnel is formed of a monolithic concrete slab a reinforced by one or more corrugated steel diaphragms b, with conduits c for drainage &c., and thickened ends d. A series of shallow headings 1-6 is excavated, and the shuttering and corrugated diaphragms e, f erected in sections and strutted together, the floor diaphragm b being preferably connected to the diaphragm f, and the concrete is filled into each section in turn; liquid concrete h is also forced between the diaphragm e and surrounding soil. After completion, the centre of the tunnel is excavated and the lining may then be coated with an enamel-cement composition and the floor paved with concrete slabs or covered with quick setting cement concrete.
Patent GB-1141235-A (GB)
Title: Apparatus for coating timber
Inventor: COOK CYRIL EDWARD
IPC: B05B14/40
Filed: 1967-02-28
Abstract: 1,141,235. Coating apparatus. ENGTIME Ltd. 22 Dec., 1967 [28 Feb., 1967], No. 9459/67. Heading B2L. Apparatus adapted to coat standard lengths of timber comprises a spray chamber having horizontally-aligned entrance and exit apertures, means for feeding said lengths through the entrance aperture, supporting means for said lengths leaving the exit aperture, spraying means in the spray chamber, and means for extracting surplus spray from the spray chamber and thereby causing an inflow of air through both apertures. A housing 1 is divided by partitions 6, 7 into chambers 10, 13, 14. Horizontally-aligned apertures 2, 3, 4, 5 are formed in partitions 6, 7 and the end walls of chambers 10, 14 respectively. A length of timber passing through aperture 4 is engaged between driven feed wheels 11, 12 located in chamber 10, and is thereby passed through aperture 2 into chamber 13, where it is coated by an upwardly-directed nozzle 17 and downwardly-inclined nozzles 18, 19. The length then passes through aperture 3 into chamber 14 where it is supported on driven rollers 15, 16, and finally passes through aperture 5. An extractor fan 20 is located in the roof of chamber 13. The coated lengths may be transported by conveyor means to a drying oven.
Patent GB-581025-A (GB)
Title: Improvements relating to transmission belts of trapezoidal cross section
IPC: F16G5/20
Filed: 1944-05-18
Abstract: 581,025. Driving-belts. WINGFOOT CORPORATION. May 18, 1944, No. 9586. Convention date, Jan. 27. [Class 80 (i)] A transmission belt of trapezoidal cross-section adapted to transmit drive by its inclined side faces, has, across its inner non- driving face, either chevron-shaped grooves 17, as shown, or obliquely shaped grooves. The angle Y of the grooves with a transverse axle may lie within the range 25 to 50 degrees. Such grooves reduce the tendency of belt rupture and hum in operation as compared with belts having grooves cut at a right angle to the longitudinal axis of the belt.
Patent GB-1044075-A (GB)
Title: Gas turbine jet propulsion engines
Inventor: SNELL LEONARD STANLEY
IPC: B64C29/00
Filed: 1964-03-06
Abstract: 1,044,075. Gas turbine by-pass jet engines. BRISTOL SIDDELEY ENGINES Ltd. March 5, 1965 [March 6, 1964], No. 9641/64. Heading F1J. [Also in Division B7] A gas turbine jet propulsion engine has an additional compressor, and two rotatable propelling nozzles, one receiving all the exhaust gas from the engine and the other receiving substantially all the air from the additional compressor, other than any air that passes from the additional compressor to the main compressor of the engine. The engine may be arranged so that at a particular performance condition the nozzles produce equal thrusts and have equal exhaust velocities. The additional compressor may be mounted ahead of the rest of the engine, and may supply air to the main compressor or the two compressors may have separate intakes, or the additional compressor may be an aft-fan. The engine is arranged horizontally in a pod which may be mounted under an aircraft wing or at the rear of an aircraft fuselage. Each nozzle 19, 20 is rotatable about an axis 90 degrees from the direction of discharge but the flow direction at the nozzle entrance is inclined to the nozzle rotational axis, to reduce the angle through which the air and gases are turned, and to reduce the inclination of the forward part of the nozzle to the pod surface. The direction of discharge of the two nozzles also converge so that the exhaust expands against the rear surface 26 of the pod, which are made concave. The engine thrust may be increased by burning fuel in the ducting leading to either nozzle, and the nozzle area is then preferably variable by a ramp 31 (Fig. 5 not shown) pivotally mounted at its downstream end on the surface 26 so that its upstream end is movable to block part of the nozzle when in the forward propulsion position. When reheat and plenum chamber burning are only used for vertical thrust (i.e. with the nozzles directed downwardly), the ramps may be fixed so that the nozzle area is automatically reduced in the forward propulsion configuration.
Patent GB-731318-A (GB)
Title: Improvements in or relating to centrifugally operable ring valves for cream separators
IPC: B04B1/16
Filed: 1953-04-09
Abstract: 731,318. Centrifugal machines. INTERNATIONAL HARVESTER CO. April 9, 1953 [April 12, 1952], No. 9662/53. Class 23. [Also in Group XXIX] A centrifugally operable ring valve 40 which is circumferentially expansible for controlling the peripheral discharge outlet 20 of a centrifugal cream separator bowl 17, 18 comprises an annular member of rubber-like material 41 incorporating relatively high density filter material dispersed and embedded in the member to increase its specific gravity to at least 1.5. The member may be covered with a sealing element 42 of soft relatively low density rubberlike material bonded thereto and the high density achieved by dispersing finely divided stainless steel powder, red iron oxide or red lead. The member may be given a specific gravity of 3.7 by dispersing 600 parts by weight of litharge in a 100 parts of rubber compound.
Patent GB-288156-A (GB)
Title: A work-holder for use in knitting or like machines for mending knitted, woven or similar articles
IPC: D04B17/00
Filed: 1928-03-30
Abstract: 288,156. Torgersen, D. March 31, 1927. [Convention date]. Darning.-The work holder in a machine for darning by knitting consists of a box open at both ends and pivoted to the needle bed or machine framing. The holder is movable on the pivots against the action of springs 24. The larger end may be formed as a grid in the spaces of which the needles 4 enter.
Patent GB-481693-A (GB)
Title: Improvements in or relating to deodorising devices
IPC: F25D17/04
Filed: 1937-04-06
Abstract: 481,693. Deodorizing - appliances ; deodorants. MINOR, H. A. April 6, 1937, No. 9710. [Class 81 (i)] A deodorizing-appliance, particularly intended for use in refrigerators, comprises a receptacle 5 having perforations 14 in its base, a sack 6 placed within the receptacle and containing an air-purifying substance, and a lid 7 having a central opening 10 through which a portion of the sack projects. The wall of the receptacle may be fitted with a hook for suspension of the appliance. A suitable deodorant consists of a mixture of brown sugar, salt, and yellow corn meal.
Patent GB-830555-A (GB)
Title: Backward wave oscillators
IPC: H01J25/40
Filed: 1958-03-26
Abstract: 830,555. Backward-wave tubes. SYLVANIA ELECTRIC PRODUCTS Inc. March 26, 1958 [March 28, 1957], No. 9749/58. Class 39(1). [Also in Group XL(b)] In a backward wave oscillator the end of the slow-wave structure adjacent the collector is terminated by a lossy co-axial transmission line 10, 42 Fig. 2, the centre conductor of which extends inside the evacuated envelope parallel to the slow-wave structure and out of the electron beam path. The resistive lossy material 44, e.g. of porous ceramic material, shunts the two co-axial line conductors. It may be previously carbonised by impregnation with sugar in solution and heating to convert the sugar to carbon. The line is terminated by a shorting plug 46. In a modification the resistive lossy material 50, Fig. 7, is in series with the inner conductor 48 of the co-axial line 10, 48 and is fitted into a shorting plug 52. The output circuit may be a co-axial line 12, 54 similarly constructed and arranged except that it is not lossy. Coupling to each of the co-axial lines is by means of the two end fingers of the delay line, one connected to the outer and one to the inner conductor thereof, which form a suitable impedance transition. The envelope is formed by the outer conductors 10, 12 of the co-axial lines and by two plates 16 with inturned edges, and by three oval plates 30 (serving as a collector 18 and 22 (enclosing the gun)) all these parts being made of stainless steel brazed together. The slow-wave structure is an interdigital delay line consisting of fingers 32, 36 connected alternately to the outside of conductors 10, 12. The gun comprises an H sectioned cathode 98, Fig. 5, having two rectangular coated emissive areas 98c, 98d, heated by separate coils to produce two sheet beams which are made parallel sided by beam forming electrode 104 having inclined portions 104c, 104d and rectangular apertures very slightly larger than the rectangular emissive portions, an accelerating anode 106 and oval plate 18 each having two rectangular beam passage apertures 106a, 106b, 18a, 18b, so that the two sheet beams on emergence are directed closely past the opposite ends of the interdigital fingers. The cathode and heater leads are supported by and led through a base plug 24 beside which is an exhaust tube 28. The gun has four support posts with ceramic spacers for the gun electrodes fitting over the posts. The electron beams are focused by an electromagnet or permanent magnet. The output co-axial line may have a vacuum seal window formed of a low loss ceramic disc and combined with a coupling section for attaching a co-axial line feeder.