baber/WOPTO huggingface dataset:
Patent GB-1078665-A (GB)
Title: A method and apparatus for automatically charging hermetically sealed system with liquid under pressure
IPC: F17C5/02
Filed: 1964-08-14
Abstract: 1,078,665. Filling containers; delivering measured quantities of liquid. SOCIETE D'ETUDES. Aug. 14, 1964, No. 33276/64. Headings B8N and B8T. [Also in Divisions F1 and F2] Apparatus for charging systems, e.g. cooling circuits, fire extinguishers and atomizers for perfumes, insecticides and paints, with a volatile liquid comprises a receptacle 1 supplied with liquid from a reservoir, not shown, via a duct 7, having a flow adjustment valve 10, dehydrators 8 and a shut-off valve 9. The duct 7 is also provided with a valve 11 controlled by a photo-electric cell 12, which when masked by a float 5 closes the valve. A receptacle 2 is connected to receptacle 1 by ducts 4 and 3 for vapour and liquid, respectively. The duct 4 is provided with a flow control valve 13 and a valve 14 controlled by a photo-electric cell 15. The receptacle 2 is connected by a duct 16 to the mouthpiece 17 of a pipe connection, Fig. 3 (not shown), for connection to the mouthpiece 23 of a system to be charged. The pipe connection (see Division F2), is provided with means for locking the mouthpiece 17 to the mouthpiece 23 and means for actuating relays which control lamps 25 and 27. The pipe connection also controls a lamp 26 associated with a photo-electric cell 18 for controlling a compressed air supply to the mouthpiece locking means. The cells 12 and 15 are adjustable relative to the receptacles 1, 2 to vary the liquid quantity supplied thereto. In operation liquid is transferred from the receptacle 1 to the receptacle 2 in one step and from the receptacle 2 to the system to be charged as the receptacle 1 fills up in a second step. The pressure in the vessels of the apparatus is the saturated vapour pressure of the volatile liquid.
Patent GB-1345851-A (GB)
Title: Fluid dynamometer
IPC: G01L3/14
Filed: 1972-07-17
Abstract: 1345851 Water dynamometer AVCO CORP 17 July 1972 [17 Sept 1971] 33278/72 Heading G1W A water dynamometer comprises rotor discs 16 mounted on shaft 18 and stator discs 14 attached to an inner housing 12, the inner housing 12 having a non-circular inner cross-section. Housing 12 may have a square, rectangular or elliptical cross-section, and is supported inside an outer cylindrical housing 10. Water is admitted to housing 12 at inlet 26, and leaves the housing 12 by entering the space 13 between housings 10 and 12 before being removed through outlet 30.
Patent GB-1515218-A (GB)
Title: Thermally insulated cryogenic container
IPC: F17C3/06
Filed: 1976-08-10
Abstract: 1515218 Liquefied gas storage container McDONNELL DOUGLAS CORP 10 Aug 1976 [4 Sept 1975] 33285/76 Heading F4P A liquefied gas tank 14 is lined internally with two or more layers 20, 22 of insulation and a liner 24, the inner layer 22 of insulation being permeable, a stabilizing barrier 26 of low permeability being located between layers 20, 22 and arranged to be at a distance from the liner slightly greater than the penetration depth of a stable liquid film so that a gaseous layer will be formed adjacent the barrier to restrict heat loss. The layers 20, 22 preferably comprise blocks of glass-fibre reinforced urethane foam, and the liner 24 and barrier 26 each preferably comprise a layer of aluminium foil bonded with polyurethane resin to a layer of polyurethane resin-impregnated glass-fibre cloth. The liner 24 may be perforated. Reference has been directed by the Comptroller to Specification 1,453,297.
Patent GB-337200-A (GB)
Title: Improved filter wads for use in smoking tobacco, and a process for their manufacture
IPC: A24D3/06
Filed: 1929-11-01
Abstract: 337,200. Brßzay, Z. Dec. 5, 1928, [Convention date]. Tobacco pipes etc.; cigarettes.-A filtering-wad for use in tobacco pipes and cigar or cigarette holders, or for insertion into the tip of a. cigarette, is produced by subjecting cellulose, cottonwool, filter paper, or other fibrous material to diluted sulphuric acid, heating sufficiently to carbonize the fibres on the outer surface, and then impregnating with a heavy-metal salt, such as iron chloride, or other material adapted to bind the nicotine, for example citric, tartaric, or tannic acid. Small cylindrical bodies are then formed of the material to constitute the wad. The sulphuric acid remaining after carbonizing is neutralized by a current of ammonia gas.
Patent GB-1091318-A (GB)
Title: Waveform envelope detector circuit
Inventor: SCARR ROBERT WALTER ALISTER
IPC: H03D1/18
Filed: 1966-07-25
Abstract: 1,091,318. Transistor detector circuits. STANDARD TELEPHONES & CABLES Ltd. July 25, 1966, No. 33341/66. Heading H3T. In an envelope detector system comprising a half-wave D.C. feed-back amplifier, VT1-VT4, having an output resistance R2 shunted by a capacitance C1 which is instantaneously charged to the peak values of an input speech waveform and partially discharged via the output resistance, one or more further discharge paths are connected in turn to the output circuit to provide an output signal which is a smoothed rectified envelope of the waveform appearing at the input. For positive inputs the amplifier VT1-VT4 operates at unit gain; with negative inputs VT3 and VT4 cut off, thereby causing VT5 to conduct and VT6 to cut off. After a time delay caused by C2 charging through R7, VT7 conducts thereby providing a discharge path for C1 through R8. Further smoothing of the output may be obtained by providing a second similar additional discharge path controlled in a similar manner by VT6, Fig. 3 (not shown). The transistor VT7 may be replaced by a field effect transistor. R3 may be partly replaced by a thermistor to provide temperature compensation, and reverse base-emitter voltages at VT1 and VT2 may be limited by diodes.
Patent GB-924849-A (GB)
Title: Casing for a controlled semi-conductor rectifier
IPC: H01L23/20
Filed: 1961-09-18
Abstract: 924,849. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. Sept. 18, 1961 [Sept. 20, 1960], No. 33343/61. Class 37. The casing for a controlled semi-conductor rectifier has a hollow terminal bolt in which a tube is located and has a lead from an electrode of the rectifier passing through the tube in electrically insulated manner to a rod which is held by an insulator fused to the rod and to a widened outer end of the tube to form a seal. In the embodiment described the copper bolt 1, connected by a stranded copper conductor 3 to one electrode of the rectifier, contains a tube 4, e.g. of " Kovar " (" Kovar " is a Registered Trade Mark), which serves for evacuating the casing and also, if desired, for filling it with an inert gas. Through this tube, which contains an inner insulating tube 7, passes a lead 6 from the rectifier's control electrode to a terminal rod 5 which is by an insulator 8, sealed e.g. by using high-frequency heating, to the widened end 4a of tube 4. After the remaining hollow part of bolt 1 has been filled with an insulating material such as a synthetic resin, the combination of bolt 1 and rod 5 serves as a plug for making two of the connections to the rectifier, the third connection being made to the lower part of the casing which is insulated from the upper part by an annular glass seal.
Patent GB-1496597-A (GB)
Title: Breakaway rear view mirror assembly for a motor vehicle
IPC: B60R1/04
Filed: 1975-08-11
Abstract: 1496597 Rear view mirrors ICHIKOH INDUSTRIES Ltd 11 Aug 1975 [12 Aug 1974 (2)] 33409/75 Heading B7J A breakaway rear view mirror assembly comprises a synthetic resin base plate 2 mountable on the interior of a motor vehicle, a mirror supporting arm 1 mounting, on a ball, at one end, a mirror holder for a mirror proper and having at its other end a projection 14 for detachably engaging an opening 21 in the base plate, wherein the projection 14 is rectangular in transverse cross-section and has a head portion with lateral protrusions 15 and a neck portion connecting the head to a platform 13 on the arm end and wherein the base plate has a pair of integral opposed resilient strips 22 with a gap therebetween which gap is smaller in width than the head portion which is snapped past the strips so that the head is secured within the base plate 2 with neck engaged by the edge portions of the strips 22 as described with reference to Fig. 8 (not shown). Surfaces 12 on the arm 1 at each side of the projection 14 and platform 13 are slightly inclined relative to each other about a control ridge line 12a, so that the planes of the surfaces 12 form an angle of more than 180 degrees therebetween. The opposed surface 23 of the base plate 2 has inclined surfaces at each side of a central groove 23a such that the planes of those surfaces are at an angle of less than 180 degrees. However the sum of the included angles of the arm and base abutting surfaces is equal to 360 degrees. The resilient strips 22 are provided with stiffener ribs 26.
Patent GB-1033204-A (GB)
Title: Improvements relating to rotary piston internal combustion engines
IPC: F01C21/18
Filed: 1963-08-23
Abstract: 1,033,204. Rotary-piston I.C. engines. T. M. PETERSON. Aug. 23, 1963, No. 33535/63. Heading F1F. A rotary-piston I.C. engine comprises a cylindrical piston or rotor 16 (Figs. 1 and 2, not shown) lodged in a stationary casing 10 whose inner peripheral-surface includes two arcuate portions 12, 14, the radius of portion 14 being uniform and substantially equal to that of the peripheral surface of the piston. In operation, air is drawn through a conduit 38 controlled by a non-return valve 52, and compressed by outwardly-sliding radial-vanes 22 on the rotor, the compressed air being received by a transfer channel 73 (Fig. 6, not shown) through a duct 64 controlled by a non-return valve 68. Fuel injected into the channel 73 through a nozzle 86 is ignited by a spark plug 90, the nozzle being in register with an outlet port 80 at one end of the channel. Products of combustion are ejected through a conduit 40 controlled by a further non-return valve 52. At least one vane 22 is situated in each slot 18 in the rotor and the sides of each vane engage with grooves 106 in end plates 94 attached to the rotor. When a pair of vanes is provided in each slot the leading vane has two extensions 108 which engage with corresponding extensions in the grooves 106 to limit the outward radial movement of the vane whereas the trailing vane is of rectangular shape and in continuous contact with the inner peripheral surface of the casing when the engine is operating. When more than two vanes are provided in each groove the leading vanes have extensions of differing lengths, and when a single vane is provided the arrangement is similar to that for a trailing vane. Pressure-loading of the vanes is effected by channels 29 extending between the radially inner ends of the slots 18 and adjacent combustion chambers 24 in the rotor. Ignition and fuel-injection timing means are actuated by rods 122 having rollers 120 engaging with cams 118, 128 attached to the end plates 94. Bearings 112 for an output shaft 30 are lodged in end covers 110 on the casing. The valves 52, 68 comprise one or two strips of spring metal which when deflected by gas pressure abut ribs 42, 46, or 70 (Figs. 4 and 7, not shown).
Patent GB-835536-A (GB)
Title: Improvements in or relating to the making up of textile fabrics into garments
IPC: A41B3/00
Filed: 1958-10-21
Abstract: 835,536. Shirt &c. collars and cuffs; sewing. ZOREK, E. Oct. 21, 1958, No. 33657/58. Drawings to Specification. Classes 112 and 141 The band of a shirt &c. collar or cuff is made of bias-cut material which is seamed to the turnover portion of the collar &c. while in a stretched condition.
Patent GB-173146-A (GB)
Title: Improvements in and relating to pneumatic tools
IPC: B25D9/20
Filed: 1920-11-29
Abstract: 173,146. Withers, J. S., (Despain, D. C.). Nov. 29, 1920. Percussive hand tools. - In a percussive tool wherein a fluid-actuated sleeve valve is arranged around the cylinder bore, a valve protector or sleeve through which the piston passes is arranged between the cylinder bore and the valve and valve-chest. The sleeve has a rearward series of inlet ports 56, a forward series of outlet ports 55, and an intermediate series of valve-shifting ports 57. The valve 6 is a differential one and has two heads 31, 30. The forward face of the head 30 is alternately put to pressure and exhaust through piston-controlled ports 25, 26, 27. The rearward face of the head 31 is subjected to compression through ports 57, 44 on the return stroke of the piston. Fluid is alternately supplied to the rear and forward faces respectively of the heads 31, 30 by small ducts communicating with inlet ports 21, to prevent the valve from chattering. On the valve moving to the right, fluid is supplied to the back end of the cylinder through ports 20, 21, 23, 56, Figs. 1 and 9, and exhausts from the forward end of the cylinder through ports 38 - - 34, around valve 6 between the heads 30, 31, and through groove 40 and ports 41, 42, 43. Fig. 12. On the valve moving to the left, fluid is supplied to the forward end of the cylinder through ports 20, 33, valve groove 34, and ports 35 - - 38, Fig. 9. The rear end of the cylinder exhausts through valve ports 39, valve-chest groove 40, and passages 42, 43, Fig. 12. Leakage ports 47 prevent the piston from sticking at the rear end of the cylinder. Reference has been directed by the Comptroller to Specification 155,544.
Patent GB-425886-A (GB)
Title: Improvements in drilling, milling and like machines
IPC: B23B39/14
Filed: 1934-11-23
Abstract: 425,886. Grinding-machines. LINDNER, H., 9, Lubarserstrasse, Wittenau, Berlin. Nov. 23, 1934, No. 33717. Convention date, Feb. 26. Addition to 397,781. [Class 60] [See also Group XXII] The drilling, milling, or like machine described in the parent Specification is modified in that the compound slide rest 1 is secured to a supporting ring 4 rotatably mounted on the guide 5 and provided with a weight 7 which balances the weight of the slide rest and associated parts. The bed 25 is gapped to receive the ring 4 and the guide 5 is supported on the bed by brackets 5a, 5b. Antifriction rollers 6 support the ring on its guide and the angular adjustment of the ring is effected from a hand wheel 8 through worm gearing and a toothed rim 9, the ring being secured by a wedge ring 36, controlled by hand lever 37. The tool-spindle 10 is driven by a motor 11 on the slide rest through change gears in a box 12 controlled by levers 15, 16. Hand and automatic spindle feeds are provided. For coarse adjustment of the slide member 2 tangentially of the ring hand wheels 18, 19, operate a spindle 20 while fine adjustment, indicated by a scale 22, is effected by turning a screw 21 by handwheels 38. The guides 26, 27, 28 of the table 29 are disposed partly on the bed and partly on the brackets 5a, 5b and adjustment indicated by a scale 33 is effected from hand wheels 30, 31 for coarse adjustment and hand wheel 32 for fine adjustment. The table is clamped by a lever 34. In a modification the ring 4 may be guided on the inner or front surface of the guide 5.
Patent GB-1409600-A (GB)
Title: Isocyanate-treated polyester filaments
IPC: D01F11/08
Filed: 1973-07-16
Abstract: 1409600 Treating polyester filaments AMERICAN CYANAMID CO 16 July 1973 [16 Aug 1972 (4)] 33813/73 Heading B5B [Also in Division C3] Polyester (as herein defined) particularly polyethylene terephthalate, filaments are produced by melt-spinning and the undrawn filaments are then treated with aromatic isocyanate dissolved in an inert chlorinated hydrocarbon, treated with a lubricating finish and then drawn under dry heat. The isocyanate is a mixture, 50 to 90 wt. per cent being an aromatic di-isocyanate and the remainder an isocyanate having more than 2 isocyanate groups per molecule. The lubricating finish is applied before more than 40% of the isocyanate groups have reacted to form other groups and is applied to give an uptake of from 0À02 to 0À4 wt. per cent. The treated filaments are drawn within one hour of the application of the lubricating finish and at a temperature between the glass transition temperature and the melting point. The draw ratio is from 4 to 7. The treated fibres are said to be highly adhesive to rubber.
Patent GB-813691-A (GB)
Title: A plant for the continuous manufacture of fat-impregnated leather
IPC: C14C15/00
Filed: 1955-11-25
Abstract: 813,691. Impregnating leather with fat. SVIT, NARODNI PODNIK. Nov. 25, 1955 [Nov. 27, 1954], No. 33835/55. Class 76. [Also in Group XXX] A plant for impregnating tanned skins comprises a tunnel-like enclosed housing through which the skins pass suspended from rods supported by a separate chain conveyer for each of three zones, viz. a drying and heating zone, an impregnating zone in which the skins are immersed in liquid fat and a setting zone, and transfer devices for the rods from one conveyer to the next. As shown in Fig. 1, a skin is admitted through the right-hand end of the tunnel and placed on a pair of conveying chains 17 in the manner shown in Fig. 2. It is passed successively through a predrying zone 2, drying zones 3 and 4 and a preheating zone 5 on said chains and is then transferred to a second chain 21 by means of a pair of rails 70 and associated apparatus, and passes through the tank L containing fat. The rod rests upon rails below the edges of said tank and rotating discs 45, 46 and 47 serve to immerse the leather in the fat. Each disc has a cut-away portion and is rotated so that said cut-away portion corresponds with the position of the rod, the passage of which is not therefore hindered. The rod is lifted by means of chains 21 and associated rails (not shown) from tank L and transferred to a further pair of chains 56 which carry it into the setting zone where the fat penetrates through the skin and excess fat drips off.
Patent GB-619993-A (GB)
Title: Improvements in devices for drying air or other gases
IPC: F24F3/14
Filed: 1946-11-14
Abstract: 619,993. Desiccator for air and other gases. FOWLER, J., DIGGLE, H., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 14, 1946, No. 33848. [Class 34(i)] A drying agent 2, such as silica gel, is contained in a vessel 1 of transparent material, having inlet apertures 3 for the gases and an oil seal 6. The vessel 1 is secured to the cover 10 by a threaded rod 16 and knob 17, the cover having a threaded hole 14 for an outlet pipe which may be connected to a transformer casing.
Patent GB-1398621-A (GB)
Title: Pneumatic tyre for vehicle wheel
IPC: B60C13/00
Filed: 1972-07-20
Abstract: 1398621 Pneumatic tyres INDUSTRIE PIRELLI SpA 20 July 1972 [30 July 1971] 33917/72 Heading B7C A pneumatic tyre comprises elastomeric side walls extending between a reinforced tread 15 and beads 21 and having midlines 28 which are convex with respect to the tyre inflation chamber. When the tyre is inflated and in use the side walls are under compression. The zones 30, 32, 34 have greater flexibility than the zones 31, 33, and this differing flexibility may be achieved by forming, e.g. by injection moulding, the side walls wholly of one rubber having, e.g. a modulus of elasticity of 40 kg./cm.<SP>2</SP> with the zones being of different thicknesses, by forming the zones of elastomers having different moduli, e.g. 5-60 kg./cm.<SP>2</SP> in zones of greater flexibility and 20-150 kg./cm.<SP>2</SP> in zones of lesser flexibility, or by forming the sidewalls of an elastomer with the zones of lesser flexibility being reinforced, e.g. by oriented glass fibres. The tread reinforcement 18 may comprise at least two layers of parallel textile or metal cords, with the cords of adjacent layers crossing. The edges of the reinforcement may be folded to provide stiffer edge regions, or additional inextensible strips may be provided in the edge regions. Instead of cord fabric layers, layers in the form of foils may be used. The beads may include cores, and the tread may be removable.
Patent GB-945466-A (GB)
Title: Improvements in the packaging of articles, particularly fragile articles
IPC: B65D81/05
Filed: 1958-10-23
Abstract: 945,466. Packaging fragile articles. J. RAWLINGS. Jan. 8, 1960 [Oct. 23, 1958], No. 34011/58. Headings B8C and B8P. A fragile article 15 is surrounded by a unitary inflatable resilient sleeve 16 open at least at one end and housed within a rigid container 18. The sleeve may be secured to the walls of the container and has an inflating valve at 17. More than one sleeve may be used and the sleeve may be divided into compartments by apertured webs.
Patent GB-362626-A (GB)
Title: Process and means for purifying boiler water
Filed: 1930-11-12
Abstract: 362,626. Feedwater heating and supply systems. HENSZEY, R. 0., Woodland Lane, Oconomowoc, Wisconsin, U.S.A. Nov. 12, 1930, No. 34030. [Classes 64 (i) and 123 (ii).] Water permanently withdrawn from the boiler is caused to heat unconcentrated make-up which is then mixed with feedwater and the mixture heated by the water drawn off before introduction into the boiler. Water is drawn from a boiler 1 through a pipe 18a, tank 21, and pipe 18 to heat exchangers A, B, and is finally discharged through a valve 54. Part of the water drawn off after deposi tion of solids in the tank 21 returns to the boiler through a pipe 21a. Make-up is supplied through a pipe 13 and passes through a softener 25 to the heated conduit b of heat exchanger B and thence to a storage tank 29 and feedwater heater 6, dissolved gases passing off through a vent 6a. Steam consuming devices shown as a heater 5 and engine 4 supply condensate and exhaust steam through pipes 7, 8 to the heater, a pump 9 delivering the feed through a pipe 10 and the heated conduit a of heat exchanger A into the boiler. Automatic control means of the flow of blow-down and makeup may comprise an apertured diaphragm 37 in the make-up line and a responsively operated diaphragm 33 which actuates valves 31, 32 in the make-up and blow-down pipes. Control is also effected through a lever system 40 .. 43 by a float 15 in the heater 6. To enable water to be withdrawn at a greater rate if the concentration of solids is high the blow-down valve 54 may be operated by an arm 55 influenced by a solenoid 50 in a circuit having electrodes 47, 48 in a chamber 46 in the blow-down line, the current varying according to the conductivity of the water. A temperature control may also be provided to increase the discharge when the blow-down is cooler, this comprising a thermostatic element 52 actuating a lever 53 which controls the valve 54. In an example the make-up may enter the low temperature stage of the exchanger at about 60‹ F. and leave it at 100-212‹ F. The withdrawn boiler water may enter the high temperature stage at 350‹ F. and leave it at 212‹ F. whilst the feedwater would enter at about 212‹ F. and enter the boiler at 220-350‹ F.
Patent GB-1205285-A (GB)
Title: Process for preparing organic dinitriles from acrylonitrile
IPC: B01J21/04
Filed: 1968-07-17
Abstract: 1,205,285. Acid catalysts. E.I. DU PONT DE NEMOURS & CO. 17 July, 1968 [19 July, 1968], No. 34116/68. Heading B1E. [Also in Division C2] A hydrogenation catalyst comprises a support consisting essentially of amorphous carbon or eta-Al 2 O 3  having adsorbed thereon the reaction product prepared in aqueous solution, of a water-soluble Ru salt and a water soluble salt of an organic carboxylic acid, said acid having a pKa in aqueous solution of from 2.5 to 5.5. The water soluble Ru salt is preferably of the formula MnRuX n+m  where M is an alkali metal cation or NH 4  cation, X is hal, m is 3 and n is 0, 1, 2 or 3 or m is 4 and n is 0 or 2. Specified carboxylic acid salts are the acetates of NH 4 , Na, K, Mg, Co; NH 4  formate, chloroacetate and pivilate and sodium benzoate. When the support is active C, the S.A. is preferably greater than 400 m2/g.