baber/WOPTO huggingface dataset:
Patent GB-702898-A (GB)
Title: Improvements relating to milling cutters
Inventor: LLOYD ARTHUR HAROLD
IPC: B23C5/24
Filed: 1953-01-16
Abstract: 702,898. Milling-cutters. HERBERT, Ltd., A: Jan. 16; 1953, No. 1315/53. Class 83 (3) A milling-cutter comprises teeth 11 held in bores 13 in the body 15 by screws 26, 27 having direct or indirect tapered engagement with blocks 19 which haveserrations' 18 to engage corresponding serrations 17 on the inner surface of the teeth and' are located against ledges' 32 in the body. The bores 13 are of circular crosssection and communicate with recesses 25 of frusto-conical form for the heads 26 of the screws by cut-out portions having parallel sides to accommodate the blocks 19. These each have an inner surface 22 of circular form to be engaged by the respective head 26. In a modification, Fig. 3, the head 26a of the screw engages the block 19a indirectly, through a plug 36 of circular section modified by an inclined surface 34. The threads in a clearance hole 38 for the screw 26a, 27 in the plug 36 may be engaged by a further screw, (not shown), having a reduced part to contact the bottom 39 of the hole 28 for the screw 26a, 27 to facilitate extraction of the plug.
Patent GB-208931-A (GB)
Title: Improvements in burners for burning solid fuel
IPC: F23D14/28
Filed: 1923-01-16
Abstract: 208,931. Johnson, J. Y., (Elektrizitõtswerk Lonza). Jan. 16, 1923. Open tray and like burners. - A burner for metaldehyde or other solid fuel comprises plates placed one above the other with a space between them, the upper plate, apertured and preferably grooved, supporting the fuel, and the space beneath receiving air so as to cause the formation of flames therein to heat the fuel and convert it into gas. In the form shown both burner plates T<1>, T<2>, have apertures, those in one plate being staggered relatively to those in the other so that pieces of fuel will not fall out of the chamber. Surrounding the burner is a casing U having regulatable air admission apertures L, for regulating the size of the flame.
Patent GB-1089725-A (GB)
Title: Improved endless belt or chain tensioning device
IPC: F16H7/08
Filed: 1966-01-12
Abstract: 1,089,725. Belt or chain tensioning devices. ALLIS-CHALMERS MANUFACTURING CO. Jan. 12, 1966 [Jan. 15, 1965], No. 1463/66. Heading F2Q. A jockey pulley 24 is spring-loaded to tension a belt or chain (16) on the end of an arm 19 which has an arcuate sector 22 with a latch 29 surrounding with play a resilient stop 32 to permit only limited return of the pulley 24. The sector 22 may move only rightwards through holes 31 in the latch 29 and a friction lock-plate 34 spring-loaded on a bolt 37 on the latch 29 to grip the sector. In a modification, Fig. 4 (not shown), a link (43) on the pulley arm 19 may move only rightwards through a hole (49) in a latch (44) surrounding with play a resilient stop (32) and loaded by spring (51) to frictionally engage link (43).
Patent GB-1064241-A (GB)
Title: Improvements in or relating to extrusion apparatus
Inventor: GREEN DEREK
IPC: G21C21/10
Filed: 1963-01-14
Abstract: 1,064,241. Extrusion. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 2, 1964 [Jan. 14, 1963], No. 1508/63. Heading B3P. [Also in Division G6] An extrusion apparatus has a resiliently yieidable non-metallic die 3 whose orifice is deformable radially inwardly during extrusion. The die is preferably made of nylon or polytetrafluoroethylene and housed in holder 3. Workpiece 7 may be of particulate fissile material such as uranium dioxide enclosed in a sheath of stainless steel and compacted by the extrusion process which is performed by hydrostatic pressure as described in Specification 998,062. The pressure also acts on a piston 4 for deforming the die radially inwardly into close contact with the workpiece.
Patent GB-621090-A (GB)
Title: Improvements relating to the manufacture of synthetic resins
IPC: C08G75/22
Filed: 1947-01-16
Abstract: Copolymers of sulphur dioxide with an olefinic hydrocarbon, e.g. butane-2, are recovered from solution in liquid sulphur dioxide by diluting the solution with a weak precipitant almost to or beyond the point at which precipitation begins, completing precipitation by adding a strong precipitant and removing the precipitated copolymer, e.g. by filtration.  A second strong precipitant may be added, which causes the sulphur dioxide remaining to boil off by reason of its incompatibility therewith. Weak precipitants specified are acetone, methyl ethyl ketone, ethyl and butyl acetates, benzene and toluene. Strong precipitants are methyl and ethyl alcohols, ethyl ether and liquid paraffins, e.g. pentane, naphtha and ligroin.  The resin is obtained as a fine, dense, white, non-coalescing powder.
Patent GB-197714-A (GB)
Title: New or improved secondary air supply means for internal combustion engines
IPC: F02D9/00
Filed: 1922-01-18
Abstract: 197,714. France, A. G. Jan. 18, 1922. Induction pipes, fittings for. -An auxiliary-air inlet and charge-mixing device comprises an apertured casing a attached to the induction pipe by a screw c, and provided with blades or vanes m mounted on a spindle f which carries further blades or vanes p projecting into the induction pipe. The air-inlet aperture in the casing a may be controlled by a suction-actuated spring-loaded valve, or by a rotatable apertured cover g. The spindle f is preferably hollow and provided with holes n through which the air passes to the induction-pipe. The spindle f, which is rotated by the air drawn in by the engine suction acting on the vanes m, is mounted between a bearing e<1> on the cover g, and a bearing e carried by arms d on the screw c.
Patent GB-740961-A (GB)
Title: Improvements in or relating to ball-pointed writing instruments
Inventor: SILVER DERRICK JOHN
IPC: B43K7/10
Filed: 1950-01-20
Abstract: 740,961. Reservoir pens. MENTMORE MANUFACTURING CO., Ltd. Jan. 2, 1951 [Jan. 20. 1950], No. 1607/50. Class 146 (3) In a ball-point pen wherein the ball 1 is mounted in a nose-piece 2 having a capillary passage 4 communicating with the interior of a non-capillary reservoir 7, the inner end face of the nosepiece is formed with one or more narrow grooves or slots which extend radially, chordally or diametrically from the periphery of the end of the nosepiece to open into the passage 4. As shown, the passage 4 opens into an inwardly' conical bore 8, and the outer edge of the neck 5 of the nose-piece is slightly coned outwardly at 8a. One or more narrow slots 9 are formed across the end of the neck of sufficient depth to break into the wall of the passage 4, and of such a 'width that ink will be retained therein by capillary attraction. If an air bubble becomes seated against the inner end face 8, the slots 9, which are filled with ink, serve to furnish a supply of ink from the reservoir 7 to the passage 4 until the air bubble floats to the top of the reservoir. In a modification, the passage 4 opens into a larger concentric capillary bore in the neck 5, and slots are formed in the neck, as before. In a further modification, the uniform passage 4 leads directly to the reservoir 1. Leakage, preventing. - The end of the reservoir remote from the ball is open to atmosphere, but is provided with an insert 7a (not shown), as described in Specification 706,314, to prevent leakage of ink therefrom.
Patent GB-228523-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/02
Filed: 1925-01-19
Abstract: 228,523. Violet, M. A., and Desigaux, A. Feb. 2, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Valves.-In a two-stroke engine, inlet ports 9<1> and exhaust ports 10<1> are controlled by a reciprocating sleeve valve 8. The inlet ports 9<1> may be placed in the lower part of the cylinder. The mixture may be supplied by a rotary compressor 13, and the timing of the valve is such that the inlet ports are closed when the cylinder pressure equals the maximum pressure which can be produced by the compressor. The sleeve valve may be actuated by an eccentric on the crank shaft as shown, or on a parallel shaft; or the several sleeve valves of a multicylinder engine may be actuated by a series of shafts perpendicular to the crank shaft. Also the sleeves may have a helicoidal motion.
Patent GB-1536978-A (GB)
Title: Positioning a semiconductor slice
IPC: G03F7/26
Filed: 1977-01-14
Abstract: 1536978 Positioning photo-sensitive material ELEKTROMAT VEB 14 Jan 1977 [19 Jan 1976] 01615/77 Heading G2A A circular semi-conductor slice having a photosensitive coating, which is exposed to a template in a contact or near contact printing process, is aligned with the template by upwardly flexing the rim of the slice concentrically about its centre and pressing the flexed rim into contact with the template. As shown, slice 3 is held by vacuum on a work-table 1, which is mounted on a vacuumlockable spherical bearing 7 in a vertically movable holder 9; and is upwardly flexed at its rim by upward movement of a stepped girth ring 10, as a result of the application of vacuum to a cavity 13. A rubber sealing ring 18 may be employed to enable application of vacuum between slice 3 and template 5 during contact printing.
Patent GB-909768-A (GB)
Title: Improvements in or relating to hydraulic regulating device
IPC: B66F3/46
Filed: 1961-01-16
Abstract: 909,768. Hydraulic apparatus; valves. SCHWEIZERISCHE INDUSTRIE-GESSELSCHAFT. Jan. 16, 1961 [Jan. 18, 1960], No. 1666/61. Classes 69 (2) and 135. [Also in Group XXX] An hydraulic regulating device for the synchronism of at least two differently-loaded actuators, such as the cylinders of an automobile lifting platform, comprises a valve bush 2, Fig. 1, connected to a pressure fluid source E and having a number of throttle openings 20a, 20b corresponding to the number of actuators, each throttle opening serving to direct a quantity of the incoming pressure fluid to its associated actuator A, a control piston 4 displaceable to control the throttle opening so that all are exposed to equal extents at each position of the piston, and an adjustable differential pressure valve 13 between each throttle opening and each actuator for maintaining the same pressure head for the fluid quantities directed through the openings. The control piston 4 has a throttle bore 12 and is movable by the pressure from the inlet E against a spring 5, an adjustable abutment 6 limiting the movement of the piston. The throttles 20a, 20b are of triangular cross. section and lead to chambers 18 between the lands of the valves 13, which chambers communicate by passages 19 with chambers 16 housing adjustable springs 14 which urge the valves against the pressure in chambers 17 connected by passages 21 to the pressure at the inlet E. In operation, the fluid pressure from the inlet E initially passes through the bore 12 to fill the space 22 and at a predetermined pressure open a master control valve 7 to permit movement of the piston 4 which opens the throttles 20a, 20b by equal amounts. The throttles cause a pressure drop in the chambers 16 which, with the pressure from the springs 14, opposes the pressure in the chambers 17 so that the control edges 13a of the valves open outlets 23 leading to the actuators, the arrangement maintaining equal the pressure head and flow to the actuators. In an alternative embodiment, the control piston 31, Fig. 2, is movable by operation of a lever 32 to control the flow of pressure fluid from a pump P to raise or lower the actuators V1, V2, the movement of the lever also. operating reversing valves 35a, 35b, located between the differential pressure valves 34a, 34b and the control bush 30 which is formed with throttle openings 38a of square form controlled by edges 31a, 31b on the control piston. The operation of the reversing valves ensures that during both raising and lowering of the actuators, the pressure differential valves are effective to control the pressure and rate of flow through the throttle openings 38a so that the movements of the actuators are always synchronized.
Patent GB-130548-A (GB)
Title: Improvements in Bottles or Flasks used for Emulsifying Purposes.
Inventor: MODERATE JEREMIAH
IPC: B65D23/04
Filed: 1919-01-23
Abstract: 130,548. Moderate, J. Jan. 23, 1919. Special shapes; internal fittings.-Bottles or metal flasks for emulsifying purposes are provided with inward projections at the bottom, or with a tapering top of stepped formation, or both. As shown, a metal flask a has its bottom a<1> projecting inwardly in stepped formation and somewhat in the form of a stepped cone. The tapering top a<2> is of stepped formation, and the screwcap b carries a cork washer b<1>. The body of the flask is covered with canvas or leatherette, and the bottom plate a<3> is insulated by an asbestos or paper disk d.
Patent GB-450177-A (GB)
Title: Improvements in and relating to fuel injection apparatus for compression ignition engines
IPC: F02M57/02
Filed: 1935-01-18
Abstract: 450,177. Fuel-injection pumps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., 78, Biggin Hall Crescent, Coventry. Jan. 18, 1935, No. 1748. [Class 102 (i)] [See also Group XXVII] A fuel-injection pump comprises a plunger 146 which commences to deliver fuel to an injection valve 110 when the end of the plunger covers the port 180 and ceases when the helical groove 154 opens this port. A feed pump piston 208 is fixed to the plunger 146 and draws fuel through the suction valve 216 and delivers it through the valve 218 to the port 180. A relief valve 220 is provided to byepass the excess fuel. The output by the plunger 146 is controlled by rotating it by the rod 160. The plunger 146 delivers fuel through the port 166 and filter 174, which is in the form of a coiled strip, to a V-shaped groove 132 in the member 128. The groove 132 is connected by a recess 134 and ports 136, 114, recess 112 and grooves in the member 108 to the seat 116 of the fuel injection valve. This valve is loaded by an adjustable spring 118 and its lift is limited bv a washer 138. Leakage is returned by the ports 124, 140, 144, 184 to the suction port 180. The Provisional Specification describes also a modified form of injection valve wherein the filter is arranged laterally in the injector casing and the valve is provided with a feeler pin to feel the action. Specifications 426,052, 437,450 ; and 450,162, [Group XXII], are referred to.
Patent GB-413367-A (GB)
Title: Improvements in the heat treatment of steels and iron alloys
IPC: C21D1/58
Filed: 1933-01-19
Abstract: In the heat-treatment of steels and iron alloys, the heated steels &c. are quenched in bath comprising an emulsified mixture of water and a mineral oil containing 0,5-10,0 per cent of petrolene.  In an example, a high speed steel containing 20,3 per cent of tungsten, 9 of cobalt, 5 of chromium and 0,9 of carbon is heated up to 1350 DEG C. and quenched in a mixture of 30 per cent of water and 70 per cent of machine oil containing 5 per cent of petrolene.
Patent GB-269458-A (GB)
Title: Stocking darning form
IPC: D04B17/00
Filed: 1927-01-21
Abstract: 269,458. Hodgson, H. E. Jan. 21, 1927. Darning.-A darning block comprises leg and foot portions of rounded oblong crosssection having disconnectible sections 4, 11, 9, 10 connected by dowels 5, 12. A cap 6 or a strap and buckle or elastic band are provided for receiving the stocking on the leg portion. Guide-ribs 14, 15 or grooves or coloured lines are provided at the toe and heel to facilitate the attachment of patches.
Patent GB-395041-A (GB)
Title: Process for the production of iron sleepers
IPC: B21K9/00
Filed: 1932-01-21
Abstract: 395,041. Metal sleepers. VEREINIGTE STAHLWERKE AKT.-GES., 69, Breitestrasse, Dusseldorf, Germany. Jan. 21, 1932, No. 1870. Convention date, Feb. 10, 1931. [Class 104 (ii).] Iron sleepers with the rail-engaging ribs pressed out of the material of the sleeper top are made from a blank, Fig. 5, having a longitudinal central rib 4, from which the ribs 3 are pressed or forged in a mould. A central groove may be formed in the rib 4 to facilitate the process. The rail-bearing surface 2 may be thickened.
Patent GB-928949-A (GB)
Title: Improvements in or relating to apparatus for applying and distributing treatment liquid
Inventor: YONKERS ROBERT
IPC: A47L13/22
Filed: 1961-01-17
Abstract: 928,949. Reservoir applicators; cleaning floors and floor coverings. BISSELL Inc. Jan. 17, 1961, No. 1904/61. Classes 19 and 138 (1). A reservoir applicator for applying detergents to hairy surfaces or wax &c. to floors, consists of a liquid container 14 of rectangular section provided with a discharge opening 22 which is closed by a valve 23, the said valve being operated by limited up and down movement of the handle 2, there being provided a locking device rotatable with the handle whereby the handle may be locked in the position with the valve closed. A tightly fitting partitioning wall 11 is arranged transversely in the interior of the container 14, thus providing a casing space which opens downwardly and has rotatably mounted therein a distributer roller 44 of foam rubber at both sides of which are mounted downwardly protruding brushes 48. A distributer conduit 19 extending the full length of the partition wall 11 has an opening leading into the discharge opening 22 of the container 14. A sleeve 26 open at the top, protrudes downwards from the top wall 6 of the container 14. The head 34 of a valve rod 24 is slidable in the sleeve 26, the valve being held seated under control of a spring 35. The handle 2 is mounted on the container 14 in a slidingly movable manner by a yoke 30 the arms of which frictionally engage in recesses in the front and rear walls of the container. The yoke is fastened to the lower part of the handle 2 by a sleeve 31 which is held slidingly in the sleeve 26. The handle locking device 37 is mounted on the handle by an annular collar 38. The device 37 has recesses 40 which engage corresponding pins 39 on the top wall 6 of the container, the device also is provided with abutments 41. By rotation and adjustment of the handle and device 37 the abutments 41 may be engaged with the pins 39 or the pins may be snapped into the recesses 40 according as to whether it is required to hold the valve in closed or open position.
Patent GB-749909-A (GB)
Title: Improvements in or relating to the hot working of nickel chromium alloy materials
Inventor: HALL DOUGLAS WILSON
IPC: C22F1/10
Filed: 1953-01-22
Abstract: 749,909. Forging; extruding. ROLLSROYCE, Ltd. Feb. 9, 1954 [Jan. 22, 1953], No. 1919/53. Classes 83 (2) and 83 (4). In the hot working of a blank formed from a nickel-chrome alloy, the blank is thinly coated with nickel prior to heating. The hot working may comprise extruding or forging and the nickel coating acts as a lubricant between the blank and the forming dies and protects the surface of the blank from oxidation, thus preventing scale formation and enabling higher working temperatures to be used. The coating is preferably applied by electrodeposition. Making turbine blades.-In the manufacture of a gas turbine blade, a blank of nickel-chrome alloy containing titanium and aluminium, is produced by upsetting, swaging or extrusion and is then machined in a lathe or grinder to provide a good surface finish. The blank is then plated to a depth of 0.001-0.003 inch, heated and forged to shape. The forging may be repeated with reheating. Where the blank is produced by extrusion the metal slug may be coated with nickel prior to extrusion. The nickel coating is subsequently removed by mechanical polishing or by electro-polishing. Working at specifced temperatures.-The hot extrusion or forging operation is performed at a temperature of 1120-1200‹ C. Specification 734,210 is referred to.
Patent GB-307162-A (GB)
Title: Improvements in steam generator furnaces
IPC: F23M5/08
Filed: 1928-01-20
Abstract: 307,162. Lowndes, E. C. Jan. 20, .1928. Pulverulent-fuel furnaces. - An apparatus for heating Lancashire and like boilers comprises a gasifying chamber b, to which powdered fuel, air, and steam are supplied by a burner c and injector g, an ignition chamber or zone m, in which the gasification of the fuel is completed and partial combustion effected, a main combustion chamber or zone o supplied with secondary air through the port n, a slag-collecting extension p, a grate h at the lower part of the chamber b for burning any deposited particles of fuel, and an injector j for supplying steam and air beneath the grate. The secondary air may be preheated in passages s around the combustion chamber, and cold air may be supplied to the upper part of the chamber b through the port u. Steam may be supplied with the fuel and air mixture through the pipe e. Specification 246 ,681 is referred to.
Patent GB-242584-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/24
Filed: 1925-01-22
Abstract: 242,584. Aktiebolaget Elektrolux. Nov. 7, 1924, [Convention date]. Spigot joints with slotted or divided socket or sleeve.-A pipe connecting the suction nozzle and the fan &c. of a vacuum cleaner is formed in sections having a cone connection and having in addition an engagement at an adjacent cylindrical part. The connections of the pipe sections with the nozzle and with the hose leading to the suction producer may be similarly formed. As shown, the outer pipe c is formed with depressions h, i between which an inner coned sleeve g is inserted, engaged by the coned end of the pipe d. The outer pipe overlaps the cone by a length m which engages the inner.pipe and is longitudinally slit, producing strips which may bear elastically on the pipe d. The inner end of the pipe d may alternatively or in addition be similarly extended. The coned portion of the outer pipe may be formed by pressing or turning the pipe wall.
Patent GB-468643-A (GB)
Title: Improvements in or relating to extra-high-pressure metal vapour electric discharge devices
IPC: H01J17/04
Filed: 1936-01-22
Abstract: 468,643. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand- Ges. f³r Elektrische Gl³hlampen) Jan. 22, 1936, No. 2045. [Class 39 (i)] In a high-pressure mercury vapour lamp wherein the pressure during operation exceeds 10 atmospheres, the electrode 5 is carried by the leading-in wire 6, which is surrounded by a quartz shield 7 within the discharge space. The lead passes out through a glass cap 8, connected to the quartz envelope by graded glasses 9, 10, 11. Specification 449,487 is referred to.
Patent GB-484979-A (GB)
Title: Improvements in photo-electric photometers
IPC: G01N21/25
Filed: 1938-01-22
Abstract: 484,979. Photo-electric photometric apparatus. ZEISS, C., [Firm of]. Jan. 22, 1938, No. 2135. Convention date, Feb. 5, 1937. [Class 40 (iii)] In photo-electric apparatus for measuring the blackening of a photographic plate 8, a prism or a pair of prisms 17 is adjustably mounted in the path of the light beam, so that by setting the prisms in two different positions the illumination from two different spots A, B of the plate may be thrown on the cell 29, which is connected by a suitable circuit to an indicating instrument 30. The plate 8 is itself adjustable across the light beam, which comes from a source 3 and passes through lenses 5, 6 on its way to the aperture 27 for the cell 29.