baber/WOPTO huggingface dataset:
Patent GB-664797-A (GB)
Title: Improvements in or relating to photo-electric machine guards
IPC: F16P3/14
Filed: 1949-05-24
Abstract: 664,797. Photo-electric machine guards. GENERAL ELECTRIC CO., Ltd., and MORRIS, S. A. May 18, 1950 [May 24, 1949], No. 13862/49. Class 40 (iii). The functioning of a photo-electric machine guard is checked by periodically interrupting the beam of light to the cell to effect a warning if failure of the guard has taken place. As shown, light from a source 10 after multiple reflections across the face of the machine reaches, if the operator does not interrupt it, a photo-cell 13 the output of which operates an anode relay 23 of an A.C. fed triode valve 20. Relay 23 in turn operates a relay 26 which energizes a magnet 36 to fix the fulcrum of a foot operated lever 30 so that the machine may be set in operation. Towards the end of the machine's operating cycle a flap 40 is moved by the machine into the light path to the photo-cell and then continues on to bridge a pair of contacts 41 in the circuit with a relay 42. If the contacts of relay 26 part when the beam is interrupted bridging of contacts 41 produces no effect. If they do not, these contacts complete the circuit of warning relay 42 which locks and operates a warning 45 and opens the supply to the contacts of the photo-electrically operated relay 23.
Patent GB-930438-A (GB)
Title: Production of laminates embodying foamed materials
IPC: B26D1/00
Filed: 1961-04-18
Abstract: 930,438. Laminates and laminating; splitting-apparatus. S. W. ALDERFER. April 18, 1961 [Jan. 30, 1961], No. 13941/61. Classes 31(1) and 140. A layer of foamed polyurethane, polyvinyl chloride, polystyrene, rubber latex or other material is laminated with a web of film, e.g. of polyvinyl chloride, polyethylene or polytetrafluoroethylene, or gauze or fine fabric of cotton or nylon or other synthetic fibres, by bonding the web to the surface of a rotated mass of the foamed material and cutting a layer of the material from the surface of the mass. The mass of foam is preferably cylindrical and the process is preferably carried out in a continuous manner. As shown, a film 50, e.g. of P.V.C., is drawn from a roll 51, passed around rollers 53, 55, and pressed against the surface of a cylindrical mass 20 of foamed material mounted on a rotatable core 21. Bonding may be effected by adhesives or by fusing the surface of the film by infra-red or other lamps or by bare gas jets 61; in the latter case the roller 55 is water-cooled and the bonded surfaces chilled by air jets supplied through a pipe 62. The roller 55 is mounted in a pivoted frame 57 and pressed against the cylinder 20 by a chain and counterweight 63, 65. A layer is cut continuously from the bonded cylindrical surface by a band knife 72 which is laterally traversed by passing around pulleys 73 driven by an electric motor 76. The cylinder 20 rotates freely in journals 35 slidable in guides 38 and advanced during the cutting operation, to maintain the cylindrical surface in constant relation to the knife 72, by screws 40 rotated through gearing by an electric motor 47. The speed of the motor 47 is varied to adjust the thickness of the cut layer. The laminate 70 resulting from the cutting operation passes around rollers 80, 83, which are positively driven and both draw off the film 50 and rotate the cylinder 20. The laminate travels over a table 109 to a wind-up unit 32 comprising a positively-driven roller 115 which bears against and winds the laminated web on to a mandrel 110; the latter having secured to its ends rollers with double flanges which embrace inclined rails 113 to enable the mandrel to move up the rails as the roll increases in size.
Patent GB-906979-A (GB)
Title: Plasma heating and confining system
IPC: H05H1/24
Filed: 1961-04-18
Abstract: 906,979. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. April 18, 1961 [April 19, 1960], No. 13949/61. Class 39 (4). [Also in Group XXIX] Apparatus for heating and containing a plasma comprises a magnetic field generating means providing a plasma trapping field configuration, and a plasma forming and accelerating means disposed adjacent the field and directing a broad plasma body into the field from at least two directions. In the apparatus shown in Fig. 1, two identical plasma guns 12, 22 are arranged along opposite faces of a long central containment field generating means. The gun 12 comprises upper and lower rectangular plates 13, 14 joined along their edges by conducting plates to form a vacuum tight enclosure communicating with the central container. An insulator 15 is disposed at one end of the gun and carries a rectangular central electrode 21 which is connected by a plurality of coaxial cables 25 and discharge switches 31 to capacitors 29. The apparatus can be evacuated by a pump 40 connected to the central chamber and gas can be admitted to each plasma gun in the vicinity of electrode 21 through electrically - operated valves 42 which cover lines of small inlet ports on each side of the plasma gun. The central chamber includes two coils 23, 24 which can be connected in parallel to produce a mirror-type magnetic field, or in anti-parallel to produce a cusp type magnetic containment field. In operation, coils 23, 24 are energized, capacitors 29 charged, and gas at density of 10<SP>15</SP> to 10<SP>16</SP> particles per c.c. and pressure of 10-100 microns is admitted to the plasma guns through valves 42. Immediately after admission of the gas, switches 31 are triggered to allow capacitors 29 to discharge between electrode 21 and the walls of the plasma gun to ionize the gas into a plasma; magnetic forces then cause the plasma in each gun to travel down the gun into the central chamber where the plasma beams collide and are confined by the magnetic field of coils 23, 24. In another arrangement, Fig. 10, the plasma gun is annular and comprises upper and lower plates 71, 72 closed round the periphery by an insulating ring 81. Gas is admitted through valves 87 and capacitors 29 are discharged through the gas to form a plasma ring which is driven by magnetic forces to the central chamber, which includes coils 76, 77 connected to produce a cusp type magnetic containment field.
Patent GB-184583-A (GB)
Title: Improvements relating to the purfication of air in buildings and the like
IPC: F24F6/12
Filed: 1921-05-18
Abstract: 184,583. Burdick, C. L. May 18, 1921. Air, oxygenating or ozonizing.-In means for cooling and purifying the air in buildings by spraying disinfectants &c. therein, a number of spraying- nozzles are fixed at convenient positions in the room, provided with one or more valves for regulating the admission of gas or liquid or both to the spraying device and a time controlled electromagnetic device for controlling the valves in order to operate the sprays automatically at predetermined intervals. As a spraying medium oxygen or compressed air enriched with oxygen or ozone may be employed. The gas is contained in high pressure cylinders connected. through a reducing valve with a container at a working pressure. The liquid to be sprayed may be contained in containers adjacent to the nozzles and compressed gas suppled through tubes, or both liquid and gas may be supplied through tubes to the nozzles. In the apparatus shown, liquid is contained in a vessel 6 and gas supplied through a pipe 4. A valve 3 is controlled by an electromagnetic device actuated by the time switch 1. The gas from the pipe 4 is led through a reducing-valve 5 to the container 6, and liquid from thence passes through a pipe 7 to the nozzles, which may be of the relay type described in Specification 177,S17, [Class 69 (iii), Spray-producers &c.], or electromagnetioally controlled, as described in Specification 8703/03, [Class 69, Hydraulic machinery &c.].
Patent GB-452913-A (GB)
Title: Protection for corners of hatch-covers at the same time serving as grips for handling the same
IPC: B63B19/14
Filed: 1936-05-18
Abstract: 452,913. Hatch-covers. FRIBERG, F. C. D., 12, Svartensgatan, Stockholm. May 18, 1936, No. 13975. [Class 113 (i)] The corners of hatchcover sections are protected. by flush fitting top and bottom corner pieces 3, 4, having flanged edges 2. The top piece 3 is formed as a hand or handling grip 6. The hatch cover top being suitably recessed. Specification 440,524, is referred to.
Patent GB-234831-A (GB)
Title: Improvements in and relating to reinforced concrete railway sleepers
IPC: E01B3/32
Filed: 1925-05-28
Abstract: 234,831. Righetto, M., and Zorzi, C. May 31, 1924, [Convention date]. Addition to 192,413. Sleepers, composite; and securing rails thereto. -The bolts 9 used to secure a rail to the centrifuged reinforced concrete sleeper 1 of the parent Specification receive two-arm clips 10 having a single rear portion engaging the sleeper projection 6. The sleeper has ridges 2 to protect the sleeper from beater-picks, and these ridges are omitted at the rail seats 3. The shape of the clips ensures a spring action, and the clips are made in sets of different sizes to adjust the rail gauge. The rail seats have parallel upper and lower faces inclined inwardly, while the lower face may be cylindrical.
Patent GB-531541-A (GB)
Title: Improvements in electron multipliers
IPC: H01J43/22
Filed: 1939-05-11
Abstract: 531,541. Electron multipliers. BOSCH, F. J. G. VAN DEN., and VACUUM-SCIENCE PRODUCTS, Ltd. May 11, 1939, Nos. 14124 and 15349. [Class 39 (i)] In electron multipliers, the secondary electron emitting cathodes are each associated with an apertured electrode spaced therefrom in the direction of approach of the primary electrons and at the same or substantially the same potential for the purpose of screening the intervening space from the field of the preceding cathode. The invention may be applied to multipliers of the type comprising successive secondary cathodes in a plane, or the type in which the secondary cathodes are disposed in two parallel groups arranged parallel and in staggered formation, but is described, as shown in Fig. 1, in connection with the type comprising a succession of apertured cathodes 15, followed by an apertured collecting anode 17, and a solid secondary emitting cathode 16. The source of primary electrons is a thermionic cathode 11, heated by a filament 12, and followed by a control grid 13 and accelerating electrode 14. The auxiliary electrodes 20 disposed in front of the cathodes 15 consists of a grid of very fine wires and are preferably mechanically and electrically connected to their associated cathodes mid-way between the successive cathodes. In the arrangement shown in Fig. 4, the secondary cathodes 15 are of the kind described in Specifications 516,621 and 516,664, the conical apertures 18 in successive cathodes being staggered relatively to one another. The auxiliary electrodes 20 are apertured plates of the same kind, and are arranged so that the apertures are in line with those of the preceding cathode. In a modification, control grids may be disposed in the spaces between the cathodes and their associated electrodes and may have modulating or control potentials applied thereto. A circuit arrangement for applying the potentials to the several electrodes and the input and output circuits, is shown in Fig. 1.
Patent GB-136585-A (GB)
Title: Improvements in or relating to Apparatus for the Distillation of Solid Carbonaceous Material.
Inventor: BURNEY CHARLES DENNISTON
IPC: C10B7/00
Filed: 1918-08-31
Abstract: 136,585. Burney, C. D. Aug. 31, 1918. Screw conveyers.-In distilling carbonaceous material at low or moderate, temperatures, the main supply of gases for heating the material under treatment is passed through hollow conveying-elements in the retort chamber. The conveyer consists of hollow screw threads b, Fig. 1, communicating at different points with hollow shaft sections b<2>, b<3>, b<4>, to which the heating gases are supplied through a tube c from an external furnace. Alternatively, the shaft itself may be solid or filled with fire-resisting material. The retort temperatures are controlled by varying the pressure or rate of flow of the gases, as by a fan, and additional pipes within the hollow shaft may be employed to conduct the hot gases to different points along the screw conveyer. The screw conveyer is provided with a scraper consisting of a screw D driven from the conveyer shaft and provided, if desired, with projecting parts forming scraping-elements; a fixed depending scraping-element d is also provided. In a modification, Fig. 9, scraping elementc k are adapted to be lowered between the screw threads b by means of a shaft k<1>, which is then moved longitudinally by a cam device k<2> through a clutch k<4>; at the end of this forward movement, the shaft k<1> is rotated by hand to disengage the scrapers k, and is then retracted by means of a pull-rod.
Patent GB-1000337-A (GB)
Title: Abattoir cartridge for a small arms animal stunning gun
IPC: F42B12/40
Filed: 1963-04-09
Abstract: 1,000,337. Blank cartridges and gun muzzle attachments. OLIN MATHIESON CHEMICAL CORPORATION. April 9, 1963 [April 24, 1962], No. 14228/63. Headings F3A and F3C. A cartridge for an animal-stunning gun comprises a rim-fire case 1 containing a smokeless powder 3 separated by a wad 5 from an inert filling 4. The forward end of the case is crimped into folds 6 sealed against moisture by a plug 7, which may be collodion, wax or a synthetic plastics such as polyethylene. The wad 5 may be made from low density polyethylene and the case 1 of brass. The charge 4, which is intended to stun an animal when fired at close range from a gun 30, is of non-toxic material and powdered substances such as sawdust, kaolin, lime, gypsum, carbon, polyethylene, polystyrene, aluminium, nickel, tungsten or iron may be used. The gun 30 has a magazine 26 and a rifled barrel to which a tube 27 is attached by a set-screw 29, the tube having a flared end 28 which is placed against the animal's head to give the optimum " stand-off " at which to fire the gun. Specifications 6,491/1914 and 306,918 are referred to.
Patent GB-802229-A (GB)
Title: Improvements in, or relating to, washing tubs
IPC: D06F27/00
Filed: 1957-05-06
Abstract: 802,229. Washing machines. O.S.V.A. OFFICINE DI SESTO SAN GIOVANNI & VALSECCHI A. SOC PER AZIONI. May 6, 1957 [May 4, 1956], No. 14355/57. Class 138 (2). A washing machine tub is asymmetric to a transverse plane that includes the axis of oscillation of the tub, is pivoted at bush 11 and pin 10 which is mounted on flange 9 formed in the rim of casing 12, the axes of the rim and bush being co-linear and forming the axis of oscillation of the tub. On one side of a plane P passing through the axis of oscillation A, the portion S of the shell 12 is of semi-cylindrical shape and has its centre in axis A, whilst the remaining shell portion T located on the opposite side of plane P is made up of two parts joined by an approximately horizontal step 16, so that the lower part 14 projects beyond the upper part 15 and is spaced from the plane P by a distance D which is less than the radius R of the shell portion S.
Patent GB-184891-A (GB)
Title: New or improved drawing instrument
IPC: B43L13/04
Filed: 1921-05-23
Abstract: 184,891. Naamlooze Vennootschap Werktuigenfabriek Rotator, and Nilant, C. P. L. May 23, 1921. Protra.ctors; squares.-In instruments having a square pivoted to a casing which can be displaced along the blade of a T-square &c., coarse and fine adjustment means are provided for the square. The casing 1 in which the square is mounted on a pivot 6, carries grooved rollers 3 engaging with the edges of a strip 4 secured to the blade 5. The pivot 6 is provided with a knurled head 7 and carries a worm-wheel &c. 8 which can be rotated by a worm &c. 9 for fine adjustment, the worm being mounted on an arm which is pivoted at 15 to the casing. A sleeve 10 which can slide but not rotate in relation to the worm spindle has a collar 11 and knob 12 projecting through a slot 13 in the casing so that by withdrawing the sleeve the worm can be moved out of engagement with the wheel 8 and the square then roughly adjusted by turning the head 7. Pointers 18, 19 indicate on a scale 20 the angular positions of the arms 21, 22 of the square.
Patent GB-785201-A (GB)
Title: An improved runabout chair for children
IPC: A47D13/04
Filed: 1955-05-18
Abstract: 785,201. Nursery chairs. JENSEN, S. E. J. M. April 30, 1956 [May 18, 1955], No. 14373/55. Class 52(2) [Also in Group XV] A nursery chair has a base frame 10, of relatively heavy gauge metal tubing or rod and with castors 11, and a superstructure of lighter tubing consisting of upwardly inclined members 12 supporting a ring 14. Cross tubes 15, 16 support a saddle-like seat 17 and the ring 14 carries a back rest 18 of sheet metal or wood. In a modification (Fig. 3) tubes of the superstructure have horizontal parts 20, 21 at right angles to each other in plan and curved ends 22, 23, the ring 14 being carried on vertical tubes 24 and the saddle 17 being supported on the T-shaped tubes 20, 21.
Patent GB-392738-A (GB)
Title: Improvements relating to self-adjusting brakes
IPC: F16D65/48
Filed: 1932-05-20
Abstract: 392,738. Compensating for wear in brakes. TURRINELLI, G., 2, Via Berchet, Milan, Italy. May 20, 1932, No. 14419. Convention date, Feb. 13. [Class 103 (i).] In wear-compensating mechanism for brakes in which the release position of each shoe M is governed by that of a movable frictionally-held stop U against which the shoe abuts, the stop U comprises a cylindrical member which is slotted circumferentially to make it resilient, and projects through a hole T in the shoe with a clearance equal to the normal brake-shoe clearance. The stop is bolted to a plate V having a recessed periphery-engaged by the rim of the brake drum P, the plate being frictionally held on a stationary disc so that it moves with the drum on expansion, and subsequent contraction of the drum due to the heat developed during braking.
Patent GB-927102-A (GB)
Title: Improvements in or relating to jewel bearings
Inventor: SHELLEY JOHN HENRY
IPC: F16C17/08
Filed: 1961-04-21
Abstract: 927,102. Bearings. S. SMITH & SONS (ENGLAND) Ltd. March 23, 1962 [April 21, 1961], No. 14461/61. Class 12 (1). In a jewel bearing having a jewel 1 and a block 2 retained by a push-fit in a mounting 4, the jewel has a spherical recess 7 therein for engagement with a tapered end of a spindle 10 and the block 2 has a frustoconical hole 8 therein, the smallest diameter 9 of which is adjacent the recess 7 of the jewel 1. The width across the recess 7 is equal to or slightly greater than the diameter 9, the tapered end of the spindle has a smaller cone angle than the hole 8 in the block 2, the block 2 may be made of metal such as brass for example, and the mounting 4 may have external screw-threads 5 thereon.
Patent GB-936876-A (GB)
Title: Hair dyeing
Inventor: FROWDE HENRY LOUIS
Filed: 1961-04-21
Abstract: In a method of dyeing hair in which it is desired that parts of the hair filaments shall not come into contact with dye, these parts are pre-coated with a water-soluble or waterdispersible protein.  The protein may be gelatin and may be applied as an aqueous paste thickened with sodium alginate.  An example is given.
Patent GB-163711-A (GB)
Title: Improvements in tumbler switches or the like
IPC: H01H23/12
Filed: 1921-05-24
Abstract: 163,711. Appareillage Gardy, Soc. Anon. May 25, 1920, [Convention date]. Switches, quick-action.-A tumbler switch comprises a rocking lever b<4> with operating dolly b<6> mounted pivotally at b<5> in the insulating switch case a. To the lower end of the rod b<5> a contact brush b<3> is secured by means of a stirrup b<1> and rivets b', the contact brush b<3> co-operating with a fixed terminal or terminals c. Two spring members are interposed between side notches d<7> of the rocking lever b<4> and lateral recesses d<6> of the switch case a, each spring member consisting of parallel rods d<1>, d<2>, one of the washers d<3>, d<4> being secured to each rod and a coiled compression spring d<5> acting between the washers. The relative disposition of the rocking lever and spring members enables the latter to retain the rocking lever in either of its extreme positions, as soon as it occupies a position other than that of the central or " dead " point.
Patent GB-1438964-A (GB)
Title: Silane containing polyazamides
IPC: C07F7/18
Filed: 1973-03-27
Abstract: 1438964 Laminating treated glass fabric UNION CARBIDE CORP 27 March 1973 [28 March 1972] 14675/73 Heading B5N [Also in Divisions C3 and B2] A silicon-containing "polyazamide" (defined as a polycarbonamide containing secondary amine as well as amide groups and which can be obtained by various methods common to all of which is the formation of an aminoester containing secondary amine groups followed by polycondensation to form a polyamide with secondary amino groups in the chain) is characterized by the following features: (i) the secondary N atoms are separated from the CO of the amide links by divalent alkylene group containing 1 to 3 sequential saturated carbon atoms; (ii) the N : CO ratio is 1À5 to 2À6; (iii) it is bonded with a compound containing at least one Si atom bonded through a carbon atom of an organic group which is directly bonded to an N atom of the polyazamide by a C to N bond; (iv) each of the remaining free valencies of each Si atom is bonded to any one of (a) a monovalent organic radical by a C to Si bond, (b) a hydrolysable monovalent organo-oxy radical, (c) H, or (d) O which in turn is bonded to another Si atom where free valencies are saturated by either O and/or monovalent organic radicals to form a siloxane therewith; (v) the total weight of the Si compounds does not exceed twice the weight of the polyazamide and comprises at least 0À25 wt. per cent of the whole compounds. In all the specific examples the polyazamide is prepared from ethylene diamine or 1,3-propane diamine and ethyl acrylate or methyl methacrylate. The first 16 examples all employ 3-chloro-propyl or -isobutyl trimethoxy silane as the Si-containing compound but numerous other divers Si compounds are illustrated in subsequent examples and extensive lists of possible polyazamide-forming reactants and Si compounds are provided in the general description. Uses.-The Si-modified polyamide can be used as a coupling agent or adhesion promoter which also acts as a plastic size, lubricant and dispersant. Specific examples illustrating its use describe (a) its application from aqueous medium as a finish on glass cloth; (b) the formation of laminates from such cloth (i) using an epoxy resin as binder or (ii) with interlayers of films of P.V.C., polypropylene, polyethylene or nylon; (c) its incorporation in a glass spheres/phenolic resole moulding formulation, (d) its use as a finish on chopped glass strands used as filler for polystyrene and (e) its application to a glass plate to cause adherence of an epoxy resin.