baber/WOPTO huggingface dataset:
Patent GB-726885-A (GB)
Title: Welding electrodes for high frequency electric sewing machines
IPC: B29C65/04
Filed: 1953-10-24
Abstract: 726,885. Seaming non-metallic sheet material. YAMAGUCHI, S. Oct. 24, 1953, No. 29442/53. Class 42 (1). [Also in Group XI] Thin sheets of synthetic resins, e.g. vinyl resins, are welded together by dielectric heating on passage between rotatable metallic roller electrodes, the smaller electrode 1 being of solid metal and the lower electrode 3 consisting of a closely-coiled spiral spring 6 fitted round an insulator disc 4, so that an electric heating field is set up along a line when the electrodes bear on the sheets between them. The upper solid roller 1 is fitted on a sewing-machine in place of the needle operating mechanism so that it may be moved up and down; and the lower electrode 3, which is driven by the driving-shaft of the machine, has the spring 6 fitted as a rim on an insulator disc 4 of mica or ebony so as to provide an elastic electrode without substantial gaps between consecutive spring coils. The. spring 6 is of phosphor bronze wire of circular or rectangular cross-section wound preferably on an elliptical core and is held by flanges 7 on a rubber ring 5 on the disc 4. Each coil of the spring is bevelled or ground on its edges radially from the centre of the disc so that the outer edges of the coil are in close contact. The solid electrode 1 has a rim b of reduced thickness with a concave periphery.
Patent GB-912077-A (GB)
Title: Improvements in or relating to air suspension systems for vehicles
Inventor: BALLARD DONALD HENRY
IPC: F16K31/52
Filed: 1959-08-28
Abstract: 912,077. Valves. CLAYTON DEWANDRE CO. Ltd. Aug. 19, 1960 [Aug. 28, 1959], No. 29454/59. Class 135. [Also in Group XXXII] A levelling valve for use in a vehicle airsuspension system comprises a housing 1 accommodating a longitudinally-movable valve element 28 controlling air flow between ports 13, 22, 21 connected respectively to the air supply, to an air spring and to exhaust, and rotary cam, crank or like means 5 extending transversely through and journalled in the housing and carrying an operating lever 9, the valve element or an extension thereof having an operable connection with the cam or like means. When the element 28 is displaced to the right it first lifts a disc valve 25, preferably of resilient material, from its seat 23 to permit air from the port 13 to flow past a non- return valve 14 through a port 20 and a groove 18 to the port 22. Further movement lifts a second valve 26 from its seat 24 to provide a greater rate of flow. Movement of the element in the opposite direction connects the spring to exhaust by uncovering the end of a bore 29 leading to the exhaust port 21 through a passage 30, a port 19 and grooves 17, 31. The crank 5 has a pin 8 fitted with a bush 32 to engage the element 28 and may be reversed to allow left or right-hand operation of the valve. A cam may be substituted for the crank, the element 28 then being spring-loaded.
Patent GB-945418-A (GB)
Title: Improvements relating to apparatus for checking digital data
Inventor: OHLSEN GEOFFREY TURNER
IPC: G06F11/10
Filed: 1961-08-16
Abstract: 945,418. Checking arrangements for data storage apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 16, 1962 [Aug. 16, 1961], No. 29584/61. Heading G4C. A parity check on binary data received in parallel on lines a - e (e.g. from a magnetic drum or tape) is effected by the arrangement of non- equivalence gates shown, an inverter I being necessary if even parity is employed.
Patent GB-782553-A (GB)
Title: Method of precision coring in the casting of metallic articles
IPC: B22C7/02
Filed: 1955-10-18
Abstract: 782,553. Cores. HILLS-McCANNA CO. Oct. 18, 1955 [July 11, 1955], No. 29692/55. Drawings to Specification. Class 83 (1). Holes in light-metal and alloy castings, e.g. of magnesium or aluminiuin alloys, are cored with borosilicate glass cores which are removed from the casting by selective corrosion with a chemical reagent, such as hydrofluoric acid or aqueous solutions of fluorphosphoric acid, with or without inhibitors such as arsenic oxide. The cores may be tubular and are made to the true dimensions of the finished part, corrected only to compensate for the shrinkage of the casting.
Patent GB-450443-A (GB)
Title: Improvements in or relating to the production of yarn containing flax or other bast fibres
IPC: D02G3/04
Filed: 1934-10-17
Abstract: 450,443. Producing yarns of flax or other bast fibres. PLATT BROS. & CO. (HOLDINGS), Ltd., Hartford Works, Oldham, SMITH, F. E., Normanton, Chelsfield Lane, Chelsfield, Kent, and WILKINSON, H., Hartford Works, Oldham. Oct. 17, 1934, Nos. 29706 /34 and 26658/35. [Class 120 (iii)] Yarn is produced from flax or other bast fibres such as jute, hemp or rainie by a process comprising all the following steps in the given sequence; (a) separation of the bast fibre from the straw in straw-loosening and bark stripping machines A, A<1> (b) opening in straw loosening, stripping, opening, cleaning and tow making machines, e.g. porcupine openers B, (c) passing through vertical opener cleaning- machines, e.g. Crighton openers C with condenser dust extractors B<2>, B<3>, (d) passing through horizontal and vertical cylinder cleaners B<1>, C<1> with condenser dust extractors, (e) passing through a lap machine E to be made into a lap, and after the step (a) or any one of the steps (b), (c) and(d) washing, squeezing rinsing, squeezing and drying in machines W, W<2>. The order of the steps (b) and (c) may be reversed. After step (c) the material may be opened in a hard waste opener D, which reduces the length of the fibres. If desired, the fibre produced may be mixed with cotton wool or synthetic fibre, carded and subsequently treated in the manner usually employed in the treatment of cotton. The laps may be blended in any desired proportions in the scutchers E, E<1> and pass from thence to a carding engine G which " stabilizes " or reduces the length of the long fibres to the average length of the short fibres in the lap. F, F<1> are hopper feeders.
Patent GB-920852-A (GB)
Title: Process for the production of anhydrous melted magnesium chloride
Inventor: WEHNER GUNTER
IPC: C01F5/34
Filed: 1960-08-29
Abstract: Anhydrous molten magnesium chloride is obtained by spraying a magnesium chloride solution into a heating gas which is in cocurrent flow to dry and partly dehydrate the salt, preferably to the half-hydrate, and the partly dehydrated salt is then allowed to fall freely downwards through a flow of hot hydrogen chloride gas, which is preferably countercurrent, the dehydration being thereby completed, and molten magnesium chloride is collected in the bottom of the reaction vessel.  Preferably the temperature at the top of the vessel is not greater than 300 DEG C., and increases towards the bottom, which is at least at the melting point.  In the preferred embodiment, the heated solution is sprayed downwards into the top of a lower maintained at 300 DEG -500 DEG C. and the hot gases, which may be exhaust gases from the second stage pass spirally downwards. The suspension issuing from the tower is separated in a cyclone, which is not below 150 DEG C., and thereafter the solids are passed to the second stage. The waste gas from the tower may be bubbled through the ingoing solution to recover waste heat.
Patent GB-262112-A (GB)
Title: Improvements in or relating to electric welding devices
IPC: B23K11/11
Filed: 1926-11-24
Abstract: 262,112. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Nov. 24, 1925, [Convention date]. Welding. - In an electric - spot welding machine the movable electrode is suspended on its arm by one or more leaf springs, the direction of the action of which is at an angle to the plane of the sheet to be welded so that after the electrode touches the sheet further movement of the arm swings the springs and electrode sideways and so feeds the sheet automatically. The head and collar b on the electrode a are fixed to leaf springs c, d which are secured on pivots f angularly adjustable in the electrode arm g according to the direction of the feed. After the electrode has been brought into contact with the sheet k by the arm g, further downward movement of the arm swings the electrode sideways to feed the work, until the contact piece e engages the collar b. This motion may be limited by a set screw so as to vary the spacing of the spots. In order that faulty welds may be avoided, the springs may be locked so as to prevent the electrode from returning to its normal position and thus feeding the work on its next stroke, until, after a number of strokes thereof, the current is sufficiently strong to effect the weld. The locking is effected by a pawl l pivoted at r and pressed against the head by an adjustable spring n or weight. The lower end of the pawl forms an armature s co-operating with an electromagnet m on the electrode. During normal operation, after the weld is effected the pawl is released by the electromagnet and swung beyond the position of unstable equilibrium so as to retain it in this position when the current is interrupted. On raising the arm g the part u engages a projection o on the pawl so as to swing it into the position shown, whereupon during downward movement of the arm the pawl engages, below the projection p so as to lock the electrode in its extended position. If, due to high resistance or iregularity of the sheet, an effective weld is not obtained the electromagnet is inoperative and the electrode operated in its extended position until the current rises sufficiently to cause the attraction of the armature s. The magnet m instead of being excited directly by the welding current, may be effected indirectly by an excess current switch, contact and release coil. The electrode a co-operates with a roller electrode h prevented from rotating backwards by a locking lever i having a knife-edge which cleans the roller during forward motion thereof. The welding current is led to the electrode through the springs c, d.
Patent GB-342790-A (GB)
Title: Improvement in bread-cutting and buttering machine
IPC: B26D7/34
Filed: 1930-07-02
Abstract: 342,790. Bread-slicing and buttering machines. THOMPSON, J., 105, George Street, Moss Side, Manchester. July 2, 1930, No. 29778/29. [Classes 28 (i) and 28 (ii).] The loaf is fed intermittently towards the cutting plane by a table e slidable on a carriage c which is reciprocated to wipe the bread across the butter box K and then past an inclined stationary knife j. The carriage c is slidable by a handle d in guides b on the base a and its movement is limited by buffers i. The feed table e has an adjustable side plate e<1> to hold the loaf. The feed is effected by the screw f actuated by a ratchet which contacts with fixed and adjustable stops and a half nut g which is disengaged by depressing the knob g<2> against the action of a spring. The inclined knife y is anchored at j<1> to the base a and is tensioned by a screw and nut associated with the bracket a<1>. The butter box K contains a plunger l moved forward by the rotary nut m engaging the screw l<1>. The nut is rotated by a ratchet wheel m<2> actuated by a pawl lever n which is pulled in one direction by a tension spring n<1>. The lever n is moved in the other direction by a lever o pivoted at o<3> and having an end o<2> which contacts with, and is swung by, a projection p on the carriage c. The knurled knob m<3> permits hand adjustments of the plunger l, and an opening is provided in the top of the box for filling. The front plate of the box is perforated or provided with vertical or diagonal slots ; and a plate with similar apertures is slidably mounted thereon to open and close the apertures. The sliding plate is normally moved by a spring into the position in which the apertures are closed, and is moved into the " open " position by the carriage c on its return movement. The butter is extruded and is wiped against the face of the loaf on its next forward movement. The plate may be circular or oval and revoluble on a central axis.
Patent GB-1047033-A (GB)
Title: Improvements in the removal of surface layers from solid bodies
Inventor: ROCHEFORT OSWALD
IPC: C23F4/00
Filed: 1963-07-26
Abstract: A solid body is immersed in a liquid medium which chemically attacks the solid body, the medium containing a solid abrasive and being agitated so that the abrasive is suspended in the medium and removal of a solid or gaseous layer, formed on the surface as a product of the chemical attack is assisted by the abrasive.  Example 1. A bar of 300 g. of natural uranium was treated in 600 g. of a liquid composed of 75% by weight of chloro-trifluorine and 25% of hydrogen fluoride to which was added 1.5% by weight of corundum of particle size 75-100m .  Example 2. Zirconium tetrafluoride of particle size 75-100m  was used instead of corundum. 0.2%, 0.8% or 1.5% by weight was used.
Patent GB-135873-A (GB)
Title: Automatic Variable Speed Gear for Automobile Vehicles Acting as an Automatic Clutch and Differential Gear.
Inventor: TONDEUR RENE
IPC: F16H9/12
Filed: 1919-11-29
Abstract: 135,873. Tondeur, R. July 16, 1914, [Convention date]. Automatic speed or power control.-Two expanding pulleys are combined and controlled by a centrifugal governor so as to form automaticallyvariable speed gearing suitable for motor-vehicles, acting also as differential or balance gearing, and also as an automatic coupling or clutch. Two inner flanges A are rigid with a hollow shaft O which is driven through a chain-wheel O<1> from the engine and is suitably supported in bearings R. Outer flanges A<1> have sliding connexions E with the bosses of the flanges A, and are connected by rods t to blocks K, which slide within the shaft 0 and are pressed apart by a spring r<1>, Pins project from the blocks K through slots a in the shaft O and make connexion with sliding sleeves D, which are connected by links b to centrifugal masses B formed as joints. A guide C braces the links b. Belts G driving the road wheels separately normally lie on loose bearing- rings r. When the engine is started, the governor pulls the blocks K inwards against the spring r<1> until the flanges a<1> grip the belts G and commence the drive. 'While running, the governor controls the speed of the vehicle so that the engine runs at most economical speed. Differential action takes place by the flanges A<1>, blocks K, and governor moving laterally as a whole.
Patent GB-1062067-A (GB)
Title: Improvements in or relating to photocopying machines
Inventor: GOREHAM PETER ERNEST
IPC: G03B27/30
Filed: 1964-07-29
Abstract: 1,062,067. Photo-copying apparatus. LAMSON TECHNICAL PRODUCTS Ltd. Oct. 28, 1965 [July 29, 1964; Dec. 8, 1964], Nos. 30113/64 and 49885/64. Heading G2A. In an electrically driven photo-copying machine, a master sheet and a photo-sensitive sheet in interleaved relation are fed in at 2, exposed to light in passing over rotatable fluorescent lamp 5, and are then separated in passing between rubber faced rollers 11, 12, idle roller 12 being momentarily halted so that driven roller 11 passes the lower sensitive sheet to infrared heat developing station 25 via pivoting raised separator plate 22, this plate being lowered to direct the master to outlet 3 when roller 12 is freed again. Passage of the interleaved sheets between lamp 21 and photo-cell 21 actuates time-delay circuitry and energizes a solenoid (19), Fig. 2 (not shown) which brings toothed arm 15 into stopping engagement with toothed wheel 14 on the shaft of roller 12, Fig. 1, while plate 22 is pivoted by a further solenoid (24) Fig. 2 (not shown). Endless driven rubber belt 7, Fig. 1, holds the sheets against lamp 5 during exposure. Both sheets are turned through 180‹ in passing through the machine and are then stacked data face downwards. In a modification, the master sheet is optionally re-circulated, there being solenoid operated curved parallel guides which returns the master from separator plate 22 to the inlet 2. The number of copies is set by a dial-operated counting device. Transparent or opaque masters may be used, and wet development is mentioned.
Patent GB-930796-A (GB)
Title: Improved fluid control valve
Inventor: FITZGERALD WILLIAM
IPC: F16K31/68
Filed: 1960-09-01
Abstract: 930,796. Valves. ESSO RESEARCH & ENGINEERING CO. Aug. 18, 1961 [Sept. 1, 1960], No. 30156/60. Class 135. A thermostatic fluid control system comprises temperature-sensitive control means 5, a pivoted control arm 9 to modulate in response to the means 5 a fluid-flow control valve 19, biasing means 26 to urge the control valve to the open position and a magnetically-susceptible element 17 mounted to be influenced by the field of a magnet 15 whereby movement of the arm 9 to reduce the rate of fluid flow to a predetermined value causes the element 15 to be attracted by the magnet with a snap-action. The element 17 is adjustably mounted on the arm 9 which is pivoted at 8 for movement in a range determined by stops 13, 14 and has a lost-motion connection with a nut 12 and an upturned end 4a on a lever 4. A float valve maintains a constant level in the tank 1 and flow to the outlet 25 is regulated by a slot 23 in the valve 19 overlapping inlet orifices 24, 24a to a varying extent. The valve may be used to prevent fuel being fed to a sleeve vaporizing burner at an insufficient rate for satisfactory operation. The arm 9 may constitute the magnetically-susceptible element and the magnet 15 may be an electromagnet. The means 5 may be a bellows connected to a hollow probe in a vessel holding water to be heated.
Patent GB-851743-A (GB)
Title: Improvements relating to metal cases for cigarettes and the like or for powder compacts
IPC: A24F15/12
Filed: 1957-09-26
Abstract: 851,743. Making metal cases. LAUGHTON & SONS Ltd., and LAUGHTON, G. A. Sept. 5, 1958 [Sept. 26, 1957; June 24, 1958], Nos. 30186/57 and 20141/58. Class 83 (2). [Also in Group XVII] A metal case for cigarettes or for a powder compact is formed of two dished parts hinged together, each part being pressed from a flat sheet and having an outwardly-directed flat lip c which is subsequently stripped back to form narrower meeting surfaces and a hinge portion on the side d. After the first pressing operation each part is pressed in a shallower die which thickens the radiused portions g that were previously stretched.
Patent GB-1338207-A (GB)
Title: Clutch release mechanism
IPC: F16D23/14
Filed: 1972-06-28
Abstract: 1338207 Clutch control FORD MOTOR CO Ltd 28 June 1972 30226/72 Heading F2L In a clutch release thrust bearing assembly for a motor vehicle wherein a bearing 23 has limited radial movement relative to a bearing carrier 11, springs 33 between the outer race 20 of the bearing and a clutch release lever 18 hold both the bearing and lever in contact with a radial flange 14 fast with the bearing carrier 11. Projections 31 on the flange 14 engage oversize apertures 32 in a radial flange of the outer race to limit radial movement of the bearing. The bearing is enclosed by seals 29, 30. (For Figure see next column.)
Patent GB-1090180-A (GB)
Title: Improvements in or relating to pneumatic time delay devices
IPC: F15B21/10
Filed: 1966-07-06
Abstract: 1,090,180. Pneumatic time delay device. LA TELEMECCANICA ELETTRICA, ING. AMATI & GREGORINI. July 6, 1966 [March 18, 1966], No. 30240/66. Heading F2S. A pneumatic time delay device comprises a housing 1, 1<SP>1</SP> which together with a diaphragm 4 and a rigid cup 5 a first chamber 6, a second chamber 7 and a hollow space 8. The diaphragm 4 and the rigid cup are clamped between the two parts 1, 1<SP>1</SP> of the housing and these components are so formed that at least one passage 35 is provided between the first chamber 6 and the hollow space. This passage may be provided, if the diaphragm 4 covers the whole area between the clamping parts of the housing, by at least one aperture 12 in the diaphragm and facing grooves 36 in the housing parts 1, 1<SP>1</SP> or if the diaphragm does not cover the whole area, by two facing grooves in the housing parts only. The second chamber 7 is connected to the hollow space through at least one aperture 29 provided in the intermediate region of the cup 5, the aperture(s) being controlled by a valve consisting of a flexible membrane 30 and also through a passage 27 formed in projections of the cup and membrane, a passage 38, a needle valve 39 and a further passage 40. The diaphragm 4 is sealingly connected to a control shaft 16 which extends through a bush 17 mounted in the housing and which is biased outwardly of the housing by a compression spring 20. The control shaft 20 may be operatively connected through a lever 41 to a microswitch 42. On urging the control shaft inwardly air passes from the second chamber 7 to the hollow space 8 through the valved openings 29 and to the first chamber 6 through passage(s) 35 and on recuperation of the control shaft under the action of the spring 20 air passes back to the second chamber 7 through the needle valve controlled passages 27, 38, 40.
Patent GB-740536-A (GB)
Title: A process for the manufacture of vinyl chloride
IPC: C07C17/25
Filed: 1951-12-27
Abstract: <PICT:0740536/IV(a)/1> Vinyl chloride is manufactured by the thermal decomposition of dichlorethane, wherein the thermal decomposition is carried out under superatmospheric pressure of at least 5 atmospheres (gauge). The reaction mixture may be worked up by distillation under reduced pressure or the gases may be subjected to distillation at low temperatures after releasing the pressure or hydrogen chloride may be removed by an absorbent, e.g. water or aqueous hydrogen chloride, and the vinyl chloride may be separated from the unreacted dichlorethane by distillation.  Using the apparatus shown in the drawing a mixture of 1 : 2- and 1 : 1-dichlorethanes is passed from container 1 to pump 2 and thence to evaporator 3 and heated reactor 4.  The mixture of gases formed is cooled in cooler 5 and passed to column 6 where hydrogen chloride is driven off through tube 7.  A dephlegmator 8 is supplied with cooling brine.  The mixture of vinyl chloride and unreacted dichlorethane collecting in sump 9 is passed to column 10 where vinyl chloride is distilled off and passes through a dephlegmator 11 and further cooler 12 into receiver 13.  In the sump 14 unreacted dichlorethane collects and may be recycled.  In examples: 1 : 2-dichlorethane is employed as starting material, the reaction tubes are of chrome-molybdenum or refined steels and the mixture of reaction products is separated by distillation at elevated temperature and pressure (1) and (2); or at low temperature and atmosphere pressure (3).  It is stated that 1 : 1-dichlorethane may be split in the same manner as the 1 : 2 isomer in example 1. The dichlormethane produced may be recycled.  Specification 363,009 is referred to.
Patent GB-1284931-A (GB)
Title: Preparation of acylic dienes and polyenes
Inventor: BRADSHAW CHRISTOPHER PATRICK C
IPC: C07C6/06
Filed: 1969-06-16
Abstract: 1284931 Non-conjugated polyenes; purifying cyclo-octene BP CHEMICALS Ltd 21 April 1970 [16 June 1969] 30392/69 Heading C5E Non-conjugated polyenes are obtained by reacting together (1) a cyclic olefin containing one or more olefinic double bonds in the ring, with (2) an acyclic mono- or poly-olefin, provided that neither reactant is a 1 : 2 or 1 : 3 diene or contains acetylene groups, in the presence of a homogeneous disproportionation catalyst comprising (a) a salt of Mo or W, e.g. MOCl 5  or WCl 6 , and (b) a Group IVb (Mendeleev) organometallic compound, e.g. tetra(n-butyl)tin, at - 100‹ to + 300‹ C. and a pressure from 10 mm. Hg to 2000 p.s.i.g. The Mo or W salt may contain triphenyl phosphine or carbon monoxide ligands. The example describes the co-reaction of cyclo-octene (pre-purified by drying over sodium wire and percolating through an activated silica column) with pentene-2 to yield a mixed product containing inter alia C 12-14  diolefins. Reference is also made to reacting cyclooctene with butene-2 to give 2,10-dodecadiene, and to reacting cyclooctadiene with pentene-2.