baber/WOPTO huggingface dataset:
Patent GB-224802-A (GB)
Title: Improvements in and relating to heat insulating materials for steam pipes, also suitable for lifebelts
IPC: C04B28/14
Filed: 1924-04-10
Abstract: 224,802. Schnell, H. W. H., and Schnell & Schelling's Patenten. April 10, 1924. Porous plastic compositions for heat-insulating purposes or for buoyant articles are obtained by adding plaster of Paris to a froth obtained by heating a mixture of air-slaked.lime and a soap solution or an aqueous emulsion of fat or oil. The preferred proportions are 1 part by weight of plaster, 2 parts of lime, and 3 parts of a 1 per cent soap solution. The product, which is porous, may be either cast into blocks or other articles, or it may be cast and then ground to powder, which after mixing with chalk and fibres may be made into insulating cord.
Patent GB-541381-A (GB)
Title: Improvements relating to metal-to-glass seals
IPC: H01J5/46
Filed: 1940-05-24
Abstract: 541,381. Uniting metals to glass. STANDARD TELEPHONES & CABLES, Ltd., and STRACHEY, C. May 24, 1940, No. 9188. [Class 36] Method of sealing comprises fixing wires 3 in jig to form cylindrical boundary, soldering a metal rod 1 in the end of the wires, inserting a short length of glass rod within the wires, removing jig, soldering a second metal rod 2 to the other end of the wires and fusing the glass to form a bead 4. The wires may be of Cu-Ni-Fe alloy.
Patent GB-707031-A (GB)
Title: An improved method of and apparatus for increasing the cooling effect and economic efficiency of compressed air in mining
IPC: E21F3/00
Filed: 1952-04-10
Abstract: 707,031. Mine ventilation. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES. April 10. 1952 [April 12, 1951], No. 9285/52. Class 137. [Also in Group XIII] In a ventilation system of a mine wherein compressed air is used for driving the mine machinery, the cooling effect of the expanding compressed air is increased by compressing atmospheric air to a higher pressure than that required by the machinery and then expanding it in a turbine located underground to the required pressure, the cold produced being used to cool the ventilation air whilst the energy released by the turbine is used to drive a compressor either for producing a further supply of compressed air for the machinery or for operating a refrigerating cycle for the further cooling of the ventilation air. In Fig. 1, a compressor 1 located above ground passes air at 15 atmospheric pressure through a cooler to remove moisture to an underground two-stage expansion turbine 2, 3 which is coupled to a three-stage air compressor 10, 11, 12. After each expansion stage, the cold air passes through heat exchangers 4, 5, 6 and 7 and finally passes through a pipe 8 to the mine machinery at a pressure of 5 to 6 atmospheres. Ventilation air entering at 9 is cooled in heat exchangers 4 and 6 and passes to the hot working points in the mine through a pipe 13. The compressor 10, 11, 12 is used to produce an additional supply of air at 5 to 6 atmospheres pressure, the air being drawn from pipe 9 and passed to the machines through pipe 14, the heat of compression being removed in heat exchangers 5 and 7. In the form shown in Fig. 2, the compressor 10, 11, 12 is replaced by a refrigerator compressor 16 which circulates a refrigerating fluid through pre-coolers 18 and 19, a watercooled condenser 20, a throttle valve 17 and ventilation air evaporator-cooler 15.
Patent GB-124334-A (GB)
Title: Improvements in Airers for Airing Clothes.
Inventor: CRACKNELL HORATIO WILLIAM
IPC: D06F57/12
Filed: 1918-06-06
Abstract: 124,334. Cracknell, H. W. June 6, 1918. Airing clothes.-Relates to a. frame for attachment to a mantelpiece, consisting of a number of rods free at one end. In the arrangement shown in Fig. 1, four rods e are carried by the screw c of a clamp b adapted to fit a mantelpiece a. In a modification, six rods are used, three being pivoted on each side of a bracket f, Fig. 2.
Patent GB-1223272-A (GB)
Title: Improvements in or relating to joining or rigid plastics members
IPC: F16B9/02
Filed: 1968-02-27
Abstract: 1,223,272. Bolted joints. FIRTH CLEVELAND FASTENINGS Ltd. 27 Feb., 1968, No. 9370/68. Heading F2H. A joint between two rigid members 10, 19 one of which is made of resinous material comprises a boss 10 on the member of resinous material having a bore 22, a cup-shaped cap 11 disposed over the boss so as to closely engage the outside wall of the boss and a threaded fastener 20 extending through an aperture 23 in member 19, through an opening 12 in the cap and with the threads in engagement with the walls of the bore 22. The opening 12 may be of such a size that as the fastener 20 is passed through it forces the periphery of the opening into the end face of the boss to help prevent relative rotation between the cap and boss. The inside surface 11a of the cap member may be serrated so as to engage the outer wall of the boss and prevent relative rotation.
Patent GB-684262-A (GB)
Title: Improvements in or relating to electrical heating elements
IPC: H05B3/32
Filed: 1950-04-17
Abstract: 684,262. Electric heating resistances. BRITISH NATIONAL ELECTRICS, Ltd., and GOLLINS, H. J. April 17, 1951 [April 17, 1950], No. 9374/50. Class 39(iii) An electric heating element, e.g. for arranging vertically in an oven, comprises a resistance supported by refractory bushes 4 fitted in apertures 3 in fins 2 projecting from a frame 1, the edges of the fins 2 adjacent the frame 1 being detached therefrom, e.g. by slots 9, extending along the base of each fin and the fin apertures being formed by notches extending from the slot 9 into the depth of the fin 2. The bushes 4 have a peripheral groove 10 which enables them to be fitted in the apertures 3 when the fins 2 are slightly tilted as shown. The bushes 4 are retained in position by straightening the fins 2. The fins 2 are pressed from the sheet metal plate 1, holes 7 being left, and additional holes 8 being provided for lightness. The plate 1 has upstanding edges, one of which supports contact plugs, and the resistance may be in two parts, which can be put in series or parallel by a switch.
Patent GB-706990-A (GB)
Title: Improvements in wrenches
Inventor: WRAIGHT FRANK LESLIE
IPC: B25B13/16
Filed: 1951-04-24
Abstract: 706,990. Wrenches. WRAIGHT & CO., Ltd., F. L. April 23, 1952 [April 24, 1951], No. 9458/51. Class 61 In a pipe wrench comprising an adjustable jaw 1 pivoted on a hand grip of U-shaped cross section, the jaw 1 having a toothed shank engaged by a spherical nut 7 seated in circular holes in the side walls of the hand grip the nut has a knurled annular groove 9 to facilitate adjustment. The shank 3 is rectangular in cross section and has worm wheel teeth on two opposite edges to engage with the screw thread in the nut. The shank is guided in the channel of the U-section member.
Patent GB-988881-A (GB)
Title: Improvements in or relating to method of obtaining cinematographic picture and apparatus therefor
IPC: G03B35/00
Filed: 1962-03-12
Abstract: 988, 881. Cinematography; illusion of reality in projected pictures. T. PATHE. March 12, 1962 [March 10, 1961], No. 9466/62. Headings G2E and G2J. An illusion of reality in projected cinematographic pictures is obtained by subjecting the focus setting to a cyclic variation during filming, each cyclic variation being effected by alternately decreasing and increasing the distance between the film and the camera lens or an element thereof and including a relative prolongation of the phase of focus setting for the most distant views. Preferably the focus setting dwells briefly in the infinity setting. The frequency of the cyclic variation is preferably greater than the frame frequency. Fig. 3 shows the lens mounting of a cinematographic camera for performing the above method. A ring 15 supporting the lens 20 is slidable in a fixed plate 16 and is mounted for longitudinal movement only in a ring 3 fixed to the lens mount 1. The ring 15 includes a cam groove 14 engaged by studs 13 in a rotatable ring 5. Secured to the ring 5 and rotatable on a bearing 4 are a further ring 6 and a pinion 9, whereby the ring 5 is coupled through a further pinion 10 and a reduction gearing 11 to an electric motor 12. The cam groove (Fig.4, not shown) is shaped to produce the focus variation desired.
Patent GB-1036303-A (GB)
Title: Inhibited ammoniacal refrigerating agent
IPC: C09K5/04
Filed: 1963-03-11
Abstract: An ammoniacal refrigerating agent contains an inhibiting mixture consisting of (1) an aliphatic amine containing 12 to 20 C atoms in a straight chain, (2) a salt of the amine as emulsifier, (3) dicyclohexyl-amine or a salt of and (4) at least one of an inorganic nitrite, nitrate, or chromate.  The inhibitor forms a film on the metal surface which retards the corrosive action of ammonia on aluminium structures both in the liquid or gaseous state. In examples, a solution containing octadecylamine or dodecyl amine and its acetate together with dicyclohexylamine nitrite, sodium nitrite and sodium chromate is saturated with gaseous ammonia and hydrogen, until the ammonia content is 30%.ALSO:Aluminium refrigeration machines, in which ammoniacal coolants are used, are protected against corrosion by adding an inhibiting mixture consisting of (1) an aliphatic amine containing 12 to 20 C atoms in a straight chain, (2) a salt of the amine as emulsifier, (3) dicyclohexylamine or a salt of, and (4) at least one of an inorganic nitrate, nitrite, or chromate.  The inhibitor forms a film on the metal surface which retards the corrosive action of ammonia both in the liquid and gaseous phase. In examples, a solution containing octadecylamine or dodecylamine and its acetate, together with dicyclohexylamine nitrite, sodium nitrite, and sodium chromate, is saturated with gaseous ammonia and hydrogen, giving an ammonia content of 30%.
Patent GB-715099-A (GB)
Title: Improvements in the manufacture of polymer beads
IPC: C08F2/22
Filed: 1952-04-17
Abstract: Discrete, spherical beads are produced by vigorously agitating a monomer in a non-solvent liquid, particularly water, in the presence of a dispersing agent and a catalyst, stopping the agitation before any appreciable polymerization has taken place and permitting the polymerization to be completed while the mixture remains in a quiescent state.  Monomers specified are styrene and/or methyl methacrylate, vinyl pyridine and mixtures of methyl methacrylate with divinyl benzene or diethylene glycol diallyl dicarbonate.  The dispersing agent may be the sodium salts of N-oleyl-N-methyl taurine, 2-ethyl-2-methylundecanol-4-sulphate, N-lauroyl-N-N-methyl taurine and lauryl sulphate; the dioctyl ester of sodium sulphosuccinic acid, N-octadecyl tetrasodium (1 : 2-dicarboxyl ethyl sulphosuccinamate), diglycerol monolaurate, lauryl ether of polyethylene glycol, cetyl trimethyl ammonium chloride, mixtures of the above or starch. Catalysts specified are benzoyl, tetrahydronaphthalene, methyl ethyl ketone and hydrogen peroxides, cumene and t-butyl hydroperoxides and N-(a -azo-bis-isobutyronitrile).  The polymerization may be carried out in an inert atmosphere and the temperature may be between 30 DEG and 75 DEG  C.  Beads of size 1 to 200 microns are obtained, the actual size being mainly controlled by the amount and nature of the dispersing agent used.
Patent GB-1142134-A (GB)
Title: Photographic compositions and processes
IPC: G03C5/30
Filed: 1966-03-04
Abstract: 1,142,134. Photographic developers. INTERNATIONAL POLAROID CORP. March 4, 1966 [March 8, 1965], No. 9656/66. Heading G2C. An aqueous alkaline developer solution, particularly for use in the silver salt diffusion transfer process, comprises a synergistic mixture of (a) an hydroxylamine or an ascorbic acid and (b) an aminophenol, a nuclear amino group of which is unsubstituted, the amount of (a) being substantially greater than that of (b). Preferably a 4-aminophenol containing C 1-4  alkyl, C 1-4  alkoxy and/or amino groups in the 2 and 6 positions or described in Specifications 900,155 and 902, 313 is used with an ascorbic acid or a hydroxylamine as described in Specifications 789, 837 and 1, 053, 067. The developer solution may also contain a silver halide solvent (e.g. a thiosulphate or a mixture of cysteine and an amine), a viscosity increasing, film forming material (e.g. sodium carboxymethyl cellulose or hydroxyethyl cellulose) which may form an image receiving layer in the silver salt diffusion process and development nuclei for the diffusion process.
Patent GB-463900-A (GB)
Title: Improved means for use in automatically weighing predetermined quantities of discrete materials
IPC: G01G13/24
Filed: 1936-04-01
Abstract: 463,900. Delivering material from hoppers. COUBRAY, E. April 1, 1936, No. 9668. [Class 78 (i)] [Also in Group XVIII] An overhead storage bin for supplying material to an automatic weighing machine has a delivery spout 11 for the main feed and a tube 22 for the dribble feed. The flow through the main feed spout 11 is started and .stopped by the movements of a pivoted feed gate 15 controlled from the weighbeam. The lower part of the spout consists of a rubber sleeve 12 which may be squeezed by a clamp 13 to choke the passage to a desired extent. The material is directed to the weigh pan by means of tray 25 vibrated horizontally by a solenoid 27 but arrested when the desired charge has been weighed out. The inclination of the tray is variable to regulate the rate of feed.
Patent GB-127993-A (GB)
Title: Improvements in and relating to Compressed Air Power Plant.
Inventor: VERNON SEWARD SEYMOURE
IPC: F04B9/02
Filed: 1918-06-12
Abstract: 127,993. Vernon, S. S. June 12, 1918. Starting and stopping pumps automatically.-In air-compressors described as part of a selfdriving compressed-air power plant, in which the exhaust valves 77 of the main compressed-air engine cylinders 2 are connected by pipes 90 to a second set of cylinders 95 with pistons, which drive a crank shaft 109 and a parallel shaft 50 geared thereto through a transverse shaft 112, to drive the air-compressors 35 in order to replenish the reservoir from the atmosphere, and in which the pistons of the compressors are connected to eccentrics on the shaft 50, the eccentrics are loose on the shaft and are driven through clutches, which are connected to a piston 55, Fig. 6, in a cylinder 54 joined up to the reservoir by a pipe 60. When the pressure in the reservoir is excessive, the piston 55 is thrust forward against a spring 65 to open the clutches and throw the air-compressors out of action. In the outward stroke, a finger 66 on the piston-rod ducks under an overlying lever 69, but as the piston recoils after passing a snifting-valve 64, the finger makes the lever open an exhaust port 74. The exhaust pipe 90 of each main cylinder 2 has an open branch 92 and a distributing-valve 99, Fig. 11. These valves, being coupled by a rod 102, Fig. 6, to a lever 104 worked by the rod of piston 55, are operated to let the exhaust escape when the compressors are unclutched.
Patent GB-472977-A (GB)
Title: Improvements in or relating to spray collectors
IPC: B05B16/00
Filed: 1936-04-02
Abstract: <PICT:0472977/III/1> A spray-collector, for use in connection with spray-guns, comprises a member having a passage therethrough, a strip of filter material extending, transversely of said passage, from a supply roll of said material, and means for inducing a current of air through the passage.  The Figure shows such a device for collecting excess spray from the gun 15, and comprising an adjustably supported tubular member 40 enclosing an electric suction fan 56, a funnel-shaped member 70 hinged to the member 40 at 76, and a transverse filter 62, of porous sheet material, extending from a supply roll 64 and gripped between the members 40 and 70.  When the exposed portion of the filter has become clogged with collected material, the member 70 may be lifted and a fresh portion of filter material drawn across the passage from the supply roll.
Patent GB-698459-A (GB)
Title: Improvements in motion picture projectors
IPC: G03B21/20
Filed: 1952-04-18
Abstract: 698,459. Kinematograph projectors. BAUER, GES., E. April 18, 1952 [April 20, 1951], No. 9748/52. Class 97 (i). A double-sided centrifugal impeller induces cooling air, at one side, through the motor casing and, at the other side, past the film gate and, if necessary, the transmission gearing. As shown, one side of the impeller 16 induces air through the holes 20 and the motor casing 19. The other side induces air through holes 13 in the mechanism casing 3 and also through the passage 12 leading to a chamber 11 in which the film path and the gate 5 are situated and into which air enters through holes 8, 10, the former being light trapped at 9. The parts of the casing at the two sides of the impeller are connected only by the bridge pieces 21 between which the air is expelled.
Patent GB-1085952-A (GB)
Title: Improvements in or relating to grilles
Inventor: BELL ERNEST GEORGE
IPC: B60K11/08
Filed: 1963-06-20
Abstract: 1,085,952. Grilles. VENESTA ALUMINIUM PRODUCTS Ltd. June 16, 1964 [June 20, 1963], No. 9756/63. Headings F4S and F4V. A grille comprises slats I each having a thickened longitudinal edge portion 1b, bridge pieces 2 made of natural or synthetic rubber, or elastic plastics material, disposed transversely at intervals along the slats closely engaging at least a part of the thickened edge portion, and each side of the slat adjacent that edge. The slats are made of extrudedaluminium or of aluminium alloy and the thickened edge may extend along the whole of the edge or occur only where there are bridge-pieces. The slats are held in slots 2d having undercut portions 2f to accommodate, the edge 1b. The bridge-pieces are reinforced by embedded metal strips 2a with tongues 2c to provide extra support, the ends of the strips 2a serving to hold the grille in its mountings. Extra support members 3 may be added (Fig. 5, not shown).
Patent GB-400089-A (GB)
Title: Method of manufacturing dental plates and like articles of metallic alloys
IPC: A61C13/00
Filed: 1933-03-31
Abstract: Articles made of metal alloys which are required to fit closely an uneven surface as in the case of dental plates or the plates employed to replace portions of skull bones are made by deposition on a mould of a large number of thin layers of the constituent metals. Diffusion of the metals takes place which may be completed by subsequent heating.  The deposition may be effected by electrolysis or by spraying.  The alternation of the layers may be arranged so that the outer layers contain a higher proportion of precious metal. The mould is first coated with precious metal foil which preferably extends beyond the mould to prevent ingress of the deposited metal between the mould and the foil; the projecting part of the foil is covered with a resist.  The foil is lightly etched before deposition. There may be 50 layers starting with alternate layers of silver and gold and then of copper, silver and gold.  The article may be made in two halves deposited on moulds one of which is a negative of the other, the two halves being joined by soldering or welding.  A sheet of foil may be applied to one or both halves to facilitate union.  In this way a more uniform section of the finished article is obtained, inadequate deposition on recessed parts of the one mould being compensated in the other.
Patent GB-1194063-A (GB)
Title: Analog-to-digital Converters
Inventor: DERING CHARLES ROBERT
IPC: H03M1/00
Filed: 1968-02-29
Abstract: 1,194,063. Analog/digital converters. LITTON INDUSTRIES, Inc. 29th Feb., 1968 [13 March, 1967], No. 9921/68. Heading G4H. An analog-digital encoder includes a movable element having a plurality of tracks A-G (Fig. 2) at least one of which has electrically conducting and non-conducting segments, input and output contacts co-operating with the tracks so that as the element moves a sequence of discrete signals is produced. In the embodiment described the movement is represented by parallel signals on leads C1, C2, C4 (Fig. 2, Fig. 3, not shown) from output contacts 44, 38 and 42 and 46, the tracks being energized from input contacts 34, 36. Tracks E, G are also energized by contact 40 on track F when output contact 38 is on a conductive segment of track A. The output pulses on leads Cl, C2, C4 each comprise five sections (70, 72, 74, 76, 78, Fig. 4, not shown) the signal C2 consisting of (a) a signal (70) from contact 38 on track A, (b) a signal (72) from both contact 38 and contact 42 (as contact 34 moves on to track D (c) a signal (74) only from contact 42 (when contact 38 moves off a conductive segment of track A) (d) a signal 76 from contact 42 and contact 38 (when the latter moves back on to track A) and (e) a signal (78) only from contact 38 (as contact 34 moves off track D).
Patent GB-801167-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J7/92
Filed: 1957-03-27
Abstract: 801,167. Friction clutches. PAILLARD S.A. March 27, 1957 [April 11, 1956], No. 9969/57. Class 80 (2). [Also in Group XVI] A friction clutch which when engaged turns through a fraction of a revolution only is composed of elements mounted concentrically of a shaft on a ring which rotates with the shaft and has two surfaces of revolution, one, which carries the elements, having a low coefficient of friction, and the other having a high coefficient of friction, for permitting the coupling between the shaft and the elements. Pawl 30, Fig. 1, moved by key 22 through 23, 28, pivots anticlockwise on 31 pushing end 15a of lever 15 clockwise about 13 to pull shoe 14, to which lever 15 is hinged at 16, against the rubber lining 9, Figs. 1 and 2, of ring 5 which rotates with shaft 1. Thus the two flanges 10, 11, Figs. 1, 2, shoe 14 and lever 15 rotate À anticlockwise with shaft 1. End 15b of lever 15 moves type lever 39 to platen 2 through linkages 42, 45, 41, 44, 40, 43, the resistance of which due to spring 50 and inertia causes shoe 14 to be held against lining 9. Rotation of the concentric elements 14, 15 continues until ear 18 of shoe 14 hits tongue 20 of 21, when the elements are returned to the position shown in Fig. 1, by spring 17. The length of time during which the clutch is engaged can be altered by moving transverse stop 21 or bending tongue 20.