baber/WOPTO huggingface dataset:
Patent GB-168051-A (GB)
Title: Improvements in tyre deflating machines
IPC: B29B15/06
Filed: 1921-08-10
Abstract: 168,051. Schrader's Son, Inc., A., (Assignees, of Kraft, H. P.). Aug. 23, 1920, [Convention date]. Tyres, elastic, special apparatus for making.- Relates to tyre-deflating apparatus of the kind described in Specifications 123,068 and 141,350. The air-tube X is fitted over a collapsable support comprising telescopic members F, G, the latter being arranged to fall by gravity so as to stretch and flatten the tube. The tube communicates with a suction-pipe A through a connection B fitted with a valve-opener. The member G is raised by a hand-lever M and link P, the lever co-operating with a quadrant rack R which is fitted with a stop S for the lever when the support F, G is fully contracted. In the construction shown, the member G is fitted with guide-rods L, L<1> sliding in tubes H, H<1> carried by a cross-bar J.
Patent GB-633665-A (GB)
Title: Improvements in or relating to vibrating mill
IPC: B01F11/00
Filed: 1947-08-06
Abstract: 633,665. Mixing in vibrating containers; washing granular materials; treating solids with liquids. MORGAN, M. F. Aug. 6, 1947, No. 21382. Convention date, Sept. 11, 1943. [Classes 82(i), 82(ii) and 86] [Also in Group XXXV] Apparatus for mixing dry solids or mixing or separating solids in the presence of a liquid comprises a trough yieldingly mounted with respect to an agitator shaft or shafts which extends longitudinally through the trough to allow limited angular and endwise reciprocatory movement of the trough under the action of vibrators. The trough 15 is mounted in a frame 1 on springs 25, and is provided with two contra-rotating agitator shafts 13 with blades 14, journalled in bearings on fixed pedestals 2, 3 so that the trough is yieldingly mounted with respect to them. Clay or other solid materials are fed in through an aperture 20 in the top of the trough, and water, &c, through apertures 21, and the mix is extruded into a hopper 22. Electromagnetic vibrators 27 are mounted on springs 28 beneath the trough to reciprocate it and move it angularly with respect to the agitators. The sides of the trough are provided with spring and rod guides to allow the trough limited lateral movement produced by vibrators which may be attached to the sides to prevent the mix clinging to the walls of the trough. In order to use the apparatus for separating solids, such as clay from iron ore, the extrusion end of the apparatus is raised to a level higher than the lower edge of an outlet aperture in the opposite end wall. The mixed solids are fed in at 20 and water through the pipes 21, the clay is dissolved in the water and flows back in the apparatus and is discharged through the above mentioned outlet, whilst the iron ore is fed upwards and extruded into the hopper 22.
Patent GB-783134-A (GB)
Title: Improvements in or relating to devices for colouring warp threads
IPC: D03J1/00
Filed: 1955-07-25
Abstract: 783,134. Coating yarns. STEVENS, P. July 25, 1955 [July 29, 1954; July 8, 1955], No. 21407/55. Class 140. [Also in Group IX] Yarns are dyed by apparatus comprising grooved rollers 3, 4 which maintain the yarn spacing, dye baths 6 over which the yarns pass, keys 7 operated by pattern mechanism which press the yarns into the baths, and a drying chamber 31 which may be fitted with infra-red lamps. Each bath contains spongy material 19 partly immersed in the dye; alternatively, the bath may contain a roller. The baths may be subdivided into small baths.
Patent GB-134418-A (GB)
Title: Improvements in Flexible Shaft Couplings.
Inventor: PARKES ARTHUR ISRAEL
IPC: F16D3/68
Filed: 1918-12-21
Abstract: 134,418. Parkes, A. I., and Mainwaring, T. Dec. 21, 1918. Shaft couplings. - A flexible shaft coupling, adapted to drive in both directions, and applicable to rolling-mills driven by electro-motors, comprises rubber or other cushions or springs 17, 18 between lugs 3, 4 on a disk A on one shaft and lugs 7, 8, 9, 10 on the outer face of a disk B on the other shaft. Bolts 19, 21 pass through elongated openings in the lugs and openings in the cushions. The lugs 7-10 are bolted to the face of the plate B as shown, and any desirable number of lugs and cushions may be employed.
Patent GB-627460-A (GB)
Title: Packaging
IPC: B65D75/04
Filed: 1947-08-06
Abstract: 627,460. Packing. WINGFOOT CORPORATION. Aug. 6; 1947, No. 21445. Convention date, June 15, 1940: [Class 94(i)] In a method of packaging with a heatstretchable and heat-sealable film such as a sheet 1 of rubber-hydrochloride, wherein the film is stretched into a cavity 3 by a plunger 8 and held there by vacuum while the material is placed in the stretched film, and wherein the package is completed by twisting the stretched film relative to the unstretched film, the vacuum is released after twisting is completed. The film is held over the cavity 3 by a ring 7 held to a bed plate 11 by coil springs 10. A heated plate (not shown) may be used to heat the portion of film to be stretched and vacuum is applied through a pipe 6 to a chamber 4 connected by passages 5 to the cavity 3, the strength of the applied vacuum being varied to regulate the tightness of the finished package. A screen or fabric liner is used to prevent the film from being sucked into the openings 5. By means of a plurality of plungers a number of packages may be formed simultaneously.
Patent GB-1288179-A (GB)
IPC: F16K5/06
Filed: 1971-04-19
Abstract: 1288179 Valves M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 19 April 1971 [9 March 1970] 21467/71 Heading F2V A valve seat 21 has an annular groove 38 adapted to receive a seal assembly comprising a resilient ring 39 of relatively hard plastics, such as nylon, Teflon (Registered Trade Mark) or Kel-F (Registered Trade Mark), and a pair of softer rings 52, 53 of natural or synthetic rubber or elastomer. After coating surfaces 46, 48 with cement, rings 52, 53 are inserted in the groove and the exposed surfaces of these rings and surface 47 are coated with cement, whereafter ring 39 is inserted between rings 52, 53. Final machining of the rings is carried out to produce sealing surfaces 63-67 (Fig. 5) and groove 68, although if desired one of rings 52, 53 can be machined to be flush with surfaces 56, 58 which are offset slightly from a surface 57 engaged by the valve closure member. Air and excess cement can be vented through passages (not shown) in ring 39, which can have a hollow core and be made by bonding rod stock and cementing the ends together. Rings 52, 53 are also preferably made from rod stock, but might alternatively be moulded or stamped from sheet stock. Surface 47 of the groove may alternatively be flat, in which case ring 39 has a complementary flat. The sealing technique is applicable to gate valves, and to rotary spherical conical and cylindrical plug valves. Seat 21 may be a spring-biased ring in sealing engagement with the valve body.
Patent GB-719276-A (GB)
Title: Improvements in and relating to anti-histamine compounds and their manufacture
Filed: 1952-08-26
Abstract: The invention comprises trans isomers of antihistaminic compounds of the general formula <FORM:0719276/IV (b)/1> or acid addition salts thereof, wherein R1 is an alkyl group, R2 is hydrogen or an alkyl group, R1 and R2 together containing not more than 4 carbon atoms, and B is a pyrrolidino, piperidino or dimethylamino group.  They are prepared by dehydrating with sulphuric acid the corresponding 1-aryl-1-(2-pyridyl)-3-aminopropanol-1, and when the product is a mixture of cis and trans isomers, separating the trans or converting the cis into the trans.  The separation of the isomers can be effected by fractional crystallization of a salt, chromatography on an alumina column or base-exchange chromatography, e.g. with sulphonated cross-linked polystyrene. The cis isomers may be destroyed by heating with acetic anhydride or may be converted by heating with strong acid, e.g. sulphuric acid.  The trans isomer alone may be formed by suitable dehydrating conditions, e.g. heating with 85 per cent sulphuric acid for 10 minutes at 165 DEG  C.  In the examples: (1) 4 - methyl - o  - pyrrolidinopropiophenone is added to 2-pyridyl-lithium in ether and the resulting 1-(4-methylphenyl)- 1 - (2-pyridyl) - 3 - pyrrolidinopropanol-1 is dehydrated to give a mixture of cis and trans 1-(4-methylphenyl)-1-(2-pyridyl)-3-pyrrolidinopropene-1, which are separated by base-exchange.  The oxalates and the trans monohydrochloride and monohydrobromide monohydrates are prepared. Similarly prepared are 1-(4-methylphenyl)-1-(2-pyridyl) - 3 - dimethylamino - propene - 1; 1 - (4 - methylphenyl) - 1 - (2 - pyridyl) - 3 - piperidino - propene - 1; 1 - (4 - tert. - butylphenyl) - 1 - (2 - pyridyl) - 3 - pyrrolidino - propene - 1; 1 - (3 - methylphenyl) - 1 - (2 - pyridyl) - 3 - pyrrolidino - propene - 1; 1 - (3 : 4 - dimethylphenyl) - 1 - (2 - pyridyl) - 3 - pyrrolidino - propene - 1; 1 - (2 - methylphenyl) - 1 - (2 - pyridyl)-3 - pyrrolidino - propene - 1; 1 - (2 : 4 - dimethylphenyl) - 1 - (2 - pyridyl) - 3 - pyrrolidino - propene - 1; 1 - (2 : 5 - dimethylphenyl) - 1 - (2 - pyridyl) - 3 - pyrrolidino - propene - 1. The trans isomer of the product of example 1 is also directly prepared by heating the propanol with 85 per cent sulphuric acid as described above, and similarly prepared are 1-(4-ethylphenyl)-1 - (2 - pyridyl) - 3 - pyrrolidino - propene - 1 and 1 - (4 - isopropylphenyl) - 1 - (2 - pyridyl) - 3 - pyrrolidino-propene-1. Specification 685,696 is referred to.
Patent GB-249740-A (GB)
Title: Collapsible clothes prop and aerial post
IPC: D06F57/12
Filed: 1925-08-28
Abstract: 249,740. Bland, W. Aug. 28, 1925. Props and posts.-The sections of a foldable clothes prop or aerial post are held extended by bolts C engaging with slotted plates A and secured by thumbscrews.
Patent GB-441632-A (GB)
Title: Improvements in or relating to the manufacture of hydrocyanic acid
IPC: C01C3/02
Filed: 1934-07-23
Abstract: Hydrocyanic acid is obtained by reacting together carbon, ammonia, a gaseous hydrocarbon or mixture of such hydrocarbons, and air or oxygen at a temperature of 1100--1500 DEG  C.  The mixture of ammonia, hydrocarbon, and air or oxygen is preferably preheated to a temperature of 400--1000 DEG  C., before bringing it into contact with the carbon which is preferably in a form having a porous structure, e.g. wood charcoal, and is preferably preheated to drive off volatile matter.  The hydrocarbons referred to are methane, ethane, ethylene, propane, propylene, natural gas, and vapours obtained by cracking hydrocarbon oils.  The reaction may be conducted in an externally heated reaction chamber, e.g. a silica tube, the temperature being controlled by regulating the supply of oxygen or oxygen containing gas, and/or by regulating the heat supplied.  The gaseous reactants may be mixed before their admission into the reaction chamber or may be supplied by separate inlets; or ammonia and hydrocarbon may be introduced at one inlet while air or oxygen is introduced through a separate inlet.
Patent GB-891051-A (GB)
Title: An improved ball-cock
IPC: F16K31/26
Filed: 1960-06-20
Abstract: 891,051. Valves. CLARIDGE, G. H., and MAINDONALD,C. J. June 20, 1960 [June 26, 1959], No. 21591/60. Class 135. A ball-cock for a flushing cistern, comprises a valve body 1, Fig. 1, having a chamber 2 in which a valve member 7, operable through a float-arm 17, controls flow between an inlet 4 and outlet 6, and a flexible diaphragm 11 secured to the valve member and the body in such a position that the inlet communicates with the valve chamber between the diaphragm and the outlet, the effective areas of the diaphragm and the closure portion 9 of the valve member being such that, in the closed position of the latter, liquid under pressure within the valve chamber exerts a greater pressure on the portion 9 in the direction of closing of the valve than it exerts in the opposite direction on the diaphragm. The diaphragm is clamped in the body 1 at its outer periphery by means of a plug 12 and a nut 13 and secured at its centre to a valve spindle 7. A restriction 20 is provided in the outlet 6. In operation, with the valve in the closed position shown in Fig. 1, liquid in the chamber 2 acts on the valve member 9 and maintains the valve closed since the effective area of the latter is greater than that of the diaphragm. When the cistern is emptied, the float arm 17 drops and its pivoted short end, which in the closed position is clear of the end of a clearance slot 18 in the valve spindle, abuts the end of the slot and thereby lifts the valve from its seat; liquid then flows past the valve and, due to the restriction 20, a back-pressure is developed which, together with the liquid pressure acting on the diaphragm, causes the valve to rapidly lift to the fully open position shown in Fig. 2. When the cistern is nearly full, the end of the lever 17 abuts the opposite end of the slot 18, thereby moving the valve towards its seat and causing a reduction in the back pressure; the pressure in the chamber 2 then rapidly closes the valve. In the modification shown in Fig. 4, the restriction in the outlet may be formed by reducing the diameter of the outlet pipe 22, of flexible material such as synthetic resin, by means of a rubber ring 24 ; more than one such restriction may be formed. In a further modification, the conical-shaped seat 10 for the valve member 9 is replaced by a raised lip co-operating with a plain surface on the valve member 9.
Patent GB-820248-A (GB)
Title: Improvements in or relating to methods of sealing silver-plated ferrochromium discs in glass in a vacuum-tight manner and electric discharge tubes provided with such seals
IPC: C03C27/04
Filed: 1957-07-09
Abstract: A ferrochromium disc is coated with a very thin nickel or cobalt layer, then a very thin gold layer, then a thick silver layer after which it is heated in a chromium-oxidizing atmosphere at 900-1000 DEG C. until a chromium-oxide layer is formed on the surface of the silver layer, and is sealed to a glass part, preferably during the same heating operation.  The very thin layers are less than 0.2 microns thick and the silver layer exceeds 2 microns.  Heating may take place in a humid nitrogen-hydrogen gas mixture with 12 to 25% of hydrogen, or in air.  The glass part may be a glaze previously applied to a ceramic body.
Patent GB-769104-A (GB)
Title: Improvements relating to injection molding
Inventor: HENDRY JAMES WATSON
IPC: B29C48/395
Filed: 1954-07-26
Abstract: 769,104. Injection-moulding. TUBE TURNS PLASTICS, Inc. July 26, 1954, No. 21742/54. Class 87(2). The temperature of portions of heat-plasticizable organic plastic material that are being fed successively to the injection cylinder of an injection-moulding machine is raised to the desired level by two operations, viz. (1) heat is applied continuously at a constant temperature from an external source this heat being insufficient to impart the desired plasticity to the material, and (2) further heat is applied to the material intermittently, by mechanical working of the material, this further increment of heat raising the material to the desired temperature. The intermittent mechanical working of the material occurs in sequence with the operation of the injection-moulding machine. Fig. 1 shows apparatus for carrying out the two heating operations, comprising a hopper 13 which feeds raw material to a chamber 10, heaters 12 which constitute the external source of heat, and an intermittently-rotated screw 11 which heats the material by mechanical working and feeds it to the injection-moulding machine. Fig. 3 shows apparatus having a modified screw comprising parts A, B and C. In an example describing the feeding of polystyrene having a moulding range of 400‹- 525‹F. by means of the Fig. 3 apparatus, the heaters 12 are set at 350‹F. At the discharge end of section A the polystyrene is at 325‹F., and passing through section C it is at 430‹F. The screw is stopped for 30-second periods during the operation of the injection ram, Fig. 2, (not shown). Specifications 684,582 and 711,875 are referred to.
Patent GB-141104-A (GB)
Title: Improvements in the die-heads of screw-cutting machines
IPC: B23G5/12
Filed: 1918-12-30
Abstract: 141,104. Kendall & Gent, and Harris, C. W. Dec. 30, 1918. Addition to 113,003. Screwing-dies and die-heads.-An improvement on the die-head described in the parent Specification consists in mounting the adjusting-slides h in the 'bifurcated ends 'of studs g, which are mounted to swivel in the die head. The slides are pivoted to the die-carriers and are adjusted by a cam-ring j adjustably mounted on a rotatable ring j<1> which can be rotated to open and close the dies by means of cam-slots j<3> and pins p on a sliding sleeve o.
Patent GB-423448-A (GB)
Title: Improvements in, or in connection with dynamo-electric machinery
IPC: H02K7/116
Filed: 1933-08-03
Abstract: 423,448. Motor driving-arrangements. HOPKINS, R. E., The Wabe, Greville Park Road, Ashstead, Surrey, and KEIGHLEY'S (LIFTS & MOTORS), Ltd., 13, Victoria Street, London. Aug. 3, 1933, No. 21793. [Class 35] To obtain two or more speeds from an electric motor in which both field and armature members are rotatable, the inner or first member A is coupled to the load and carries a pinion B engaging a gear J of an epicyclic, element E, another gear K of the epicyclic element engaging a pinion F on a third member G, the arrangement being such that when the second or outer member C is held by means of a brake drum D, the inner member A and driving shaft rotate at a certain speed, and alternatively when the third member is held by means of the brake drum G, the driving shaft rotates at a different speed, the relative speed of the first and second members remaining unaltered. The motor may be any type of continuous current or alternating current machine and further speed variations may be obtained by brush shifting, by the use of tapped transformers or by varying the electrical connections to the first and second members. In the form shown, the motor is a six pole machine designed for a three phase, fifty cycle supply. The epicyclic element E is mounted in eccentric bearings H in the second member C and the gears B, J K, F have 27, 32, 44 and 39 teeth respectively. When the member C is held, the member A and the driving shaft rotates at 1000 r.p.m. whilst the member F G rotates in the opposite direction at 950 r.p.m. If the member FG is clamped, the speed of the driving shaft drops to 50 r.p.m. and the member CD rotates at 950 r.p.m., in the opposite direction.
Patent GB-809845-A (GB)
Title: Animal nail clippers
IPC: A45D29/02
Filed: 1956-07-13
Abstract: 809,845. Veterinary appliances. LAING, C. Sept. 25, 1957 [July 13, 1956], No. 21805/56. Class 81 (2). Veterinary nail clippers, of the type in which a cutting blade 1 moves across a hole in a stationary blade 2, has a gauge-plate 13 mounted adjacent to the cutting blade to limit the amount by which the nail can protrude through the hole prior to cutting. The gauge may be mounted on a spring clip for attachment to the handle member 6 and the handle 5 may be pivoted at 7 and may actuate the blade 1 through a link 8. In a modification the gaugeplate carries a receptacle into which severed portions of nail pass after cutting.
Patent GB-1036875-A (GB)
Title: Improvements relating to surge diverters
Inventor: MILLER ALAN DAVID
IPC: H01T1/04
Filed: 1962-06-06
Abstract: 1,036,875. Surge diverters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 27, 1963 [June 6, 1962], No. 21897/62. Heading H2H. A surge diverter generally similar to that of Specification 677,949 has passageways 5 which are formed by co-operating channels in the insulating discs 1 comprising the arc extinguishing chamber, the passageways 5 venting the constricted region 7 of this chamber, Fig. 2 (not shown), and leading back to its region of maximum wall spacing at the electrodes 2, 3. Each electrode is carried by a respective disc 1 and is electrically connected by a rivet 11 to a metal plate 10 serving as a terminal. A magnetic blow-out field may be provided by a coil (not shown) surrounding the chamber, or when the diverter is used on D.C. circuits, by one or more permanent magnets each located on a plate 10 which in this case will have a raised peripheral rim.
Patent GB-687257-A (GB)
Title: An improved apparatus for making coffee and like infusions
IPC: A47J31/06
Filed: 1951-09-19
Abstract: 687,257. Percolators. WIT, E. D. DE, and KRAYENHOFF, G. Sept. 19, 1951, No. 21976/51. Class 129. A coffee percolator consists of an outer vessel 1 through the base of which projects a coffee container 6 having a perforated base. A cylinder 8 is inverted over the container 6, and has a hollow dished top through which passes a U-shaped capillary tube 11. The cylinder 8 is held in position by indentations 9. The vessel 1 is filled with hot water to above the level of the cylinder 8, the water rising between the container 6 and the cylinder 8 and through the perforations 7 into the container 6, the displaced air escaping through the tube 11. As the infusion strips out of the container 6 into a collecting vessel, water siphons from the vessel 1 into the container 6, the tube 11 being sealed by the water contained in the hollow in the top of the cylinder 8.
Patent GB-745202-A (GB)
Title: Improvements in or relating to power-assisted steering gear for mechanically propelled vehicles
IPC: B62D5/24
Filed: 1950-09-06
Abstract: 745,202. Fluid-pressure servomotor-control systems. BISHOP, R., and JOHNSTON, R. H. Dec. 6, 1951 [Sept. 6, 1950], No. 21991/50. Class 135. In a power-assisted steering mechanism for mechanically propelled vehicles having a fluidpressure piston and cylinder servomotor interposed in the length of and in axial alignment with the steering shaft, the flow of pressure fluid to and from the servomotor is controlled by valve members rotatable relatively to each other on rotation of the steering shaft. As shown, the servomotor cylinder 1, Fig. 2, having a supply connection 47 and exhaust connections 44, 45 is interposed between a tubular steering column 3 and a steering gear housing 2 and houses a sleeve 30 having an end wall 31 connected to the steering shaft 34 for rotation therewith. The sleeve 30 co-operates with a liner 27 having an end wall 26a formed with a projecting rib 35, Fig. 4, keyed to a shaft 23 having screw-threads 24 which engage a nut 11 movable axially on guide-rods 16 and mounting on trunnions 13 the usual rocker shaft 9. The nut 11 is connected by a tubular rod 17 to a piston 28 slidable in the liner 27. Abutment pins 37 secured to the end wall 31 of the sleeve 30 engage with clearance blind bores 36 in the rib 35 whilst transverse bores 39 in the rib house pins 40 having heads 40a engageable with laminated centralizing springs 41. The sleeve 30 is formed with circumferential recesses 42, 43, 46 in alignment with the connections 44, 45, 47 respectively and rings of radial ports 48c, Fig. 6, and 48b, Fig. 7, in the plane of the recesses 42, 46 respectively whilst the liner 27 is formed with rings of radial ports 49b and longitudinal grooves 50a, 50b leading towards the opposite ends of the cylinder 1. The arrangement is such that on rotation of the steering shaft 34 in one or other direction the clearance between the abutment pins 37 and the blind bores 36 permits relative rotational movement between the sleeve 30 and the liner 27 and the consequent connection of the ports and grooves in the sleeve and liner to direct pressure fluid to one end of the cylinder 1 and exhaust it from its other end to move the piston 28 to rotate the shaft 23 in the same direction as the steering shaft 34. On removal of the steering effort, the springs 41 return the sleeve and liner to a position in which communication between the opposite ends of the cylinder and the supply and exhaust connections are cut off, the piston and rocker shaft remaining in the positions to which they have been moved until the steering shaft 34 is again rotated. Should the supply of pressure fluid fail, the springs 41 will be strongly flexed to impart a positive drive to the liner 27.