baber/WOPTO huggingface dataset:
Patent GB-582999-A (GB)
Title: Improvements in protector devices for electric motors in refrigeration apparatus
IPC: F25D23/00
Filed: 1944-07-25
Abstract: 582,999. Refrigerating. CONSTANTINE, W. W. (General Motors Corporation). July 25, 1944, No. 14165. [Class 29] [Also in Group XXXVIII] A heat-sensitive element 70 in the flow of a cooling medium, e.g., air forced by a fan 34 over the condenser 28 and motor-compressor unit 20 operates a cut-out switch 54 for the compressor motor 22 and is heated by an electric heater 88. the heating being insufficient to operate the cut-out except when the circulation of the cooling medium fails. The element 70 comprises a metal tube containing the electric heating element 88 in series with the toggle switch 54 operated by a bell crank lever 64 pivoted on a pin 66. The toggle springs 60 act between a cross pin 62 on the bell crank lever and a toggle lever 59. A spring 80 forces the bell crank lever 64 against a collar 34 fixed to the pin 66, forming a friction clutch between the pin and the lever, and the pin is normally held from rotation by fusible solder 74 between it and the metal tube 70. The bell crank lever 64 is pushed manually in a clockwise direction to trip the toggle to the closed circuit position. If the fan motor 34 or the flow of air over the tube 70 fails the solder 74 melts allowing the pin 66 to be turned by the toggle springs 60 and as soon as the srings cross the line of the contact 54 the switch moves to open position. The solder thereupon solidifies leaving the protector ready to be reset manually. The protector may be used as a manual cut-off switch by turning the bell crank lever 64 in a counter clockwise direction.
Patent GB-528663-A (GB)
Title: Improvements relating to reflectors
IPC: F21V7/10
Filed: 1939-05-12
Abstract: 528,663. Lamp reflectors. CHANCE BROS., & CO., Ltd., and HOLMES, J. G. May 12, 1939, No. 14191. [Class 75 (ii)] [Also in Group XX] In reflectors of curved section comprising a reflecting sheet pressed into contact with a rigid base by clamping means exerting tangential pressure at the margin of the sheet, means applying a bending force to the margin of the sheet is provided to ensure close contact between all parts of the sheet and base. As shown, a reflecting sheet a is pressed into contact with a trough-like base b by means of pairs of screws f engaging a bar c secured to the sheet, one of each pair exerting pressure in a tangential direction and the other tending to bend the sheet. In a modification, the screws tending to produce bending are omitted, and the curvature of the base is increased at the margin; an increased curvature may be initially provided at the margin of the sheet. A recess d may accommodate the adjacent side of the bar c, the bar may be replaced by a number of blocks, and the sheet may have a circular edge.
Patent GB-1375529-A (GB)
IPC: G03G15/20
Filed: 1973-03-23
Abstract: 1375529 Heat-fixing KALLE A G 23 March 1973 [25 March 1972] 14206/73 Heading G2H Paper 1, bearing loosely adhering thermoplastic toner particles 2 on its underside, is passed between two rollers 3, 4 the lower of which is heated by an element 6 and rotates in a container 7 of talcum powder 8 that forms a thin layer 9 on the surface of the roller 4 to act as a release agent. The roller comprises a hollow metal cylinder 5 which may be formed of steel and may have a silicone rubber covering.
Patent GB-539882-A (GB)
Title: Improvements relating to apparatus for electroplating
IPC: C25D17/10
Filed: 1940-09-16
Abstract: 539,882. Nickel alloys. MOND NICKEL CO., Ltd. Sept. 16, 1940, No. 14242. Convention date, Sept. 16, 1939. [Class 82 (i)] [Also in Group XXXVI] Anodes for nickel plating are composed of electrolytically deposited nickel containing from 0.01 to 0.25 per cent. of sulphur together with small amounts of one or more of the metals copper, iron, tin, zinc, or lead. The anodes are deposited from a bath consisting of nickel sulphate and chloride and boric acid, the sulphur being supplied by the addition of sulphonic acid or a sulphonate to the bath, e.g. #-napthalene sulphonic acid or -naphthalene sulphonate.
Patent GB-1325978-A (GB)
Title: Butadiene recovery process
IPC: C07C7/08
Filed: 1972-03-27
Abstract: 1325978 Recovering butadiene SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 27 March 1972 [29 March 1971(2)] 14260/72 Heading C5E Butadiene is recovered from a C4-hydrocarbon mixture by extractive distillation with a polar solvent followed by stripping the fat solvent, optionally after partial depletion in a flash zone, in a first stripping zone operated at a lower pressure than the extractive distillation, part of the butadiene-enriched vapour stream recovered from the first stripping zone being returned after compression to the extractive distillation and another part, after compression, being passed to a second stripping zone from which the butadiene product is recovered. The extractive distillation may be operated at 3-7.5 atmospheres absolute, the flash zone and first stripping zone at 1.26-3.5 atmos. absolute and the second stripping zone at 4.2-7 atmos. absolute. Part of the lean solvent recovered as bottom product of the first stripping zone may be recycled to the extractive distillation and part may be fed to the second stripping zone. An acetylene-enriched stream may be withdrawn from an intermediate point of the first stripping zone. Suitable polar solvents are acetonitrile, acetone, furfural, DMF, dioxane, phenol, NMP or their aqueous mixtures. A preferred solvent is a mixture of water and acetonitrile containing 90 wt. per cent acetonitrile.
Patent GB-529106-A (GB)
Title: Improvements in goggles
IPC: G02C7/16
Filed: 1939-05-12
Abstract: 529,106. Goggles. KELLER, A. May 12, 1939, No. 14263. [Class 97 (i)] In goggles of the kind having opaque eyepieces, each provided with a small view-hole, the eye-pieces 4 are rotatable in the frames 1, and the view-holes 5 are eccentrically disposed therein so that, by turning the eye-pieces, the distance apart of the holes can be suited to the separation of the eyes. The goggles may have hinged sides 3, or may be clipped over ordinary spectacles, or be provided with a handle ; and they may be scaled to indicate the distance apart of the view-holes. The eye-pieces may be plane or curved, and of celluloid, or cellulosic or synthetic resinous material.
Patent GB-1170672-A (GB)
Title: A process for the preparation of Hydrindacenes
Inventor: WOOD THOMAS FULLENWIDER
IPC: C07C2/70
Filed: 1967-01-12
Abstract: 1,170,672. Acetylated hydrindacenes. L. GIVAUDAN & CIE S.A. 12 Jan., 1967, No. 14347/69. Divided out of 1,170,671. Heading C2C. [Also in Division C5] 5 - Isopropyl - 3,3,8,8 - tetramethyl - ashydrindacene is acetylated with acetic anhydride in the presence of AlCl 3  to give 5-acetyl-3,3; 8,8- tetramethyl - as - hydrindacene (the isopropyl group having been replaced). On acetylation of the same starting material with acetyl chloride the isopropyl group was retained, the product being 4 - acetyl - 5 - isopropyl - 3,3,8,8 - tetramethyl-as-hydrindacene Acetyl derivatives are also prepared from 1,1,3,3,8,8 - hexamethyl - 5 - isopropyl - ashydrinacene; 1,1,7,7 - tetramethyl - s - hydrindacene; and a mixture of 3,3,5,8,8 - and 3,3,5,6,6 - pentamethyl - as - hydrindacenes.
Patent GB-218458-A (GB)
Title: Process for separating alkylamines from ammonia and other gases
Filed: 1923-06-01
Abstract: Methyl- or ethyl-amines are separated from a mixture with ammonia and other gases, such as results from the catalytic interaction of methyl or ethyl alcohol with ammonia, by passing the mixture through solid ammonium chloride bathed in methyl or ethyl alcohol.  The ammonium chloride is contained in a tower or towers, beneath which the alcohol is boiled and above which is a reflux condenser.  In the case of the ethylamines, the mono-, di-, and tri-bodies react with the ammonium chloride with evolution of ammonia to form the corresponding hydrochlorides, which dissolve in the alcohol and are separated by liberating the bases and fractionally distilling them.  Of the methylamines, the tri-body is not affected by the treatment and issues from the tower with the residual gases and is removed therefrom by compression and cooling; the mono- and di-bodies dissolve in the methyl alcohol and are separated by allowing the hydrochloride of the monomethylamine to crystallize out and evaporation of the filtrate to obtain the dimethylamine hydrochloride.
Patent GB-809227-A (GB)
Title: Electromagnetic relay
IPC: H01H50/54
Filed: 1957-05-08
Abstract: 809,227. Electromagnetic relays. SQUARE D CO. May 8, 1957 [June 25, 1956], No. 14587/57. Class 38 (5). A relay has two moulded insulating support and guide members 7, 8 which have interfitting pins 27 and holes 28 and are fastened together with an insulating sheet 6, to a baseplate 2 by screws 39 and threaded sleeves 5 to retain the core 32 and coil 36 in position and support the armature and moving contact assembly 11 for limited rectilinear movement. The fixed contacts 18, 19 are mounted by screws 23 on the members 7, 8 and carry terminals 21. The assembly 11 comprises the armature 38 joined by a pin 40 to insulator ports 43 which are recessed at 48 to carry bridging contacts 49 held apart by springs 51. A rivet 50 holds the parts 43 together and secures a U-shaped guide 45 for a compression spring 46 which has one end against the guide 45 and the other on an H-shaped member 44. The outer limbs of the member 44 are held in recesses 61 in the members 7, 8 so that the spring 46 urges the assembly 11 away from the core 32. The core and coil fit in recesses 64, 66 and the assembly 11 can slide in recesses 25, 64. The screws 29 are held captive in the member 7 by washers 73 engaging a retaining plate 74.
Patent GB-501827-A (GB)
Title: Improvements in or relating to the distribution of radio programmes received by a single aerial
IPC: H04H20/77
Filed: 1937-05-26
Abstract: 501,827. Distributing music &c. MONGE, G. DE. 'May 26, 1937; No. 14617. Void. Convention date, May 26, 1936. [Class 40 (iv)]  In a system for distributing radio programmes at high-frequencies from a single aerial 10 to a number of receiving sets at different points, a separate high-frequency amplifier V<SP>1</SP> ... V<SP>3</SP> is provided for each receiving point, the grids of all the amplifiers being connected in parallel through a resistance 40 to the aerial. Each receiving point has a switch I<SP>1</SP> which when operated connects heating current from a mains transformer T to the filament F<SP>1</SP> of the corresponding amplifier and also to a rectifier, R supplying plate current to all the amplifiers. Each filament control lead 14 may contain an indicating lamp b<SP>1</SP>. The plate circuits of the amplifiers are connected to the receiving sets through condensers 5 and leads 11 which are screened by the corresponding leads 14. The aerial 10 is connected to ground through a semi-aperiodic impedance comprising a choke 30 and resistance 20 in series.
Patent GB-536086-A (GB)
Title: Improvements in or relating to the mixing of concrete
IPC: B28C5/36
Filed: 1940-01-17
Abstract: 536,086. Concrete mixers. STANCLIFFE, C. W. Jan. 17 1940, No. 14655. Divided out of 527,028. [Class 86] In a machine for mixing concrete having a belt which carries the ingredients past agitating devices, the belt is provided with side chains and cross supports which take the driving stresses. The machine is described in Specification 527,028 and the belt 2, of rubber or other flexible material, is carried on bars or rods 6 attached at intervals to roller chains 7 passing round the driving sprockets.
Patent GB-1371537-A (GB)
Title: Method of depositing an epitaxial semi-conductor layer from the liquid phase
IPC: H01L21/00
Filed: 1972-03-29
Abstract: 1371537 Epitaxial growth from melts R C A CORPORATION 29 March 1972 [8 July 1971] 14695/72 Heading BIS An epitaxial layer of a single crystalline is deposited on a substrate by forming an unsaturated solution of a semi-conductor material in a molten metallic solvent, bringing a body of the semiconductor material into contact with the solution to saturate it with the semiconductor material, removing the body from the solution, bringing a surface of a substrate into contact with the solution and cooling the solution sufficiently to deposit an epitaxial layer of the conductor material on the substrate. Successive layers may be deposited. The semiconductor material may be gallium arsenide or gallium aluminium arsenide and the solvent gallium. A conductivity modifier may be included in the solution, e.g. tellurium or tin for an N type layer or zinc, germanium or magnesium for a P type layer.
Patent GB-590505-A (GB)
Title: Improvements in apparatus for securing metal bushes in the staves and/or the cants of beer or other barrels
IPC: B21D51/38
Filed: 1945-07-27
Abstract: 590,505. Securing bushes in barrels. BARNES, q. July 27, 1945, No. 14746/44. [Class 21] [Also in Group XXII] A cylindrical or slightly tapered metal bush, with a flange b at one end, is heated, inserted in a barrel stave or cant, drifted home by means of a tool E used on the flanged end, and thereafter flanged over at the other, projecting, end by using in succession the tapers d<1>, d<2>, of a second tool D, and finally the tool E. The bush is preferably of copper or other ductile metal not affected by the beer or other contents. Pins or screws may be passed through the flange b.
Patent GB-572764-A (GB)
Title: Improvements in or relating to releasing mechanisms suitable in releasing bombs, parachute apparatus and the like from aircraft, ships or other carriers
IPC: B64D1/04
Filed: 1941-11-17
Abstract: 572,764. Clips. HANSEL, S. Nov. 17, 1941, No. 14754. [Class 44] [Also in Group XXI] The bomb &c. has secured to it a releasing mechanism comprising a pivotally mounted arm 2 provided at or near one end thereof with a gripping element 3 for co-operation with a companion element 1. A spring 4 urges the elements apart and a lever 5 bears against the under side of the arm 2 to hold the elements closed on to the carrier from which the bomb is to be released. The lever 5 is pivoted at 6 on the element 1, and its free end is supported, in the locked position, by a tripping bar 8. To release the bomb, the bar 8 is rotated so that a flat 9 thereon allows the free end of the lever 5 to drop. The element 3 is a screw under-cut at 3a so that it may be used to load the mechanism by tightening until the head breaks off in torsion. A number of such clamping devices may be arranged side by side and arranged to be released simultaneously or successively. In a modification, two spring- urged arms 2 are used.
Patent GB-167891-A (GB)
Title: Improvements in or relating to hair trimmers
IPC: B26B21/12
Filed: 1920-06-01
Abstract: 167,891. Molloy, J. June 1, 1920. Razors.-An ordinary comb is converted into a hair-trimmer by clamping to it a Gillette or like blade by means of a plate shown in Fig. 1 carrying flat serrated projections A integral with or riveted to it, the whole being clamped together by means of thumb-nuts as shown in Fig. 5.
Patent GB-139976-A (GB)
Title: Improved hatch cleat
IPC: B63B19/24
Filed: 1919-06-12
Abstract: 139,976. Brown, D. A. June 12, 1919. Hatch fastenings.-Hatch cleats of the type comprising a palm 2, a cranked upstanding limb 1 for engagement with the usual wedge, and a rib 4 extending from the palm to the upstanding limb, are made from pressed sheet metal instead of from malleable castings as hertofore.
Patent GB-707818-A (GB)
Title: Improvements in or relating to a method of shaping blocks of artificial sponges
IPC: B29C44/00
Filed: 1951-06-22
Abstract: 707,818. Making artificial sponge from viscose &c. SPONCEL, Ltd. June 22, 1951 [July 11, 1950], No. 14914/51. Class 87 (2) Blocks of artificial sponge made from cellulose, particularly by the viscose process, are shaped by passing them through a slightly conical heated funnel which subjects the blocks to radial compression as they pass through. The radial compression may be limited to about 5 mm. over the entire section of each block. The drawing shows such a funnel 1 secured by brackets 2, 3 to a frame (not shown). The funnel is heated by four electrical resistors 4, 5, to, say, 180-200‹C. The block is pushed in at A, either manually or by a pushing member, and emerges at B ; it may be fed in at A on a travelling belt and received at B on another travelling belt which may have grippers, cheeks &c. to facilitate the forward movement of the block. Specifications 454,190 and 637.553 are referred to.
Patent GB-1425659-A (GB)
Title: Photographic photosensitive elements
IPC: G03C8/50
Filed: 1973-03-28
Abstract: 1425659 Photo-sensitive silver halide elements; self-processing film unit POLAROID CORP 28 March 1973 [30 March 1972] 14923/73 Headings G2C and G2X A photo-sensitive element comprises a photosensitive silver halide layer coated on a polymeric support which is transparent or translucent (at least after processing) and an opaque polymeric sheet having an optical density of at least 6.0; the sheet comprises a polymeric material swells on application of fluid so that the sheet material separates from the support. The silver halide layer or the support may contain a small amount of a pigment (e.g. carbon black or TiO 2 ), a compound which changes colour on change of pH or an antihalation dye, to prevent light piping. Preferably the sheet is of polyvinyl alcohol, polyacrylamide and/or carboxyalkyl cellulose and swelling is effected by Na 2  SO 3  solution. The element may be used in a film unit, particularly for a diffusion transfer process, for processing outside the camera after exposure to produce a transparency.
Patent GB-1198918-A (GB)
Title: A Feeding Spoon
Inventor: GOULD LINCOLN NEVILLE
IPC: A61J7/00
Filed: 1968-03-28
Abstract: 1,198,918. Feeding spoon. L. N. GOULD. 29 Jan., 1969 [28 March, 1968], No. 14947/68. Heading A4A. A feeding spoon, e.g. for infants, comprises a bowl 1, a handle 2, and a bridge 3, which may be of opposite curvature to the bowl, the bowl and bridge forming an elliptical or circular orifice 4 at the spoon end and a lateral aperture 5.
Patent GB-1101805-A (GB)
Title: Improvements in or relating to aerosol valves for pressurised dispensing containers
IPC: B05B11/00
Filed: 1965-04-08
Abstract: 1,101,805. Valves. PITTSBURGH RAILWAYS CO., [trading as SEAQUIST VALVE CO.]. 8 April, 1965 [10 April, 1964], No. 14953/65. Heading F2V. [Also in Division F1] The valve chamber 12 of a pressurized dispensing container valve, in addition to communicating with the dip-tube 24 is connected to a chamber 18 opening at the top adjacent the top of the container, a valve 20 closing the connection when the container is upright and opening when the container is inverted. The chamber 18 is of polygonal cross-section so that liquid flows past the valve 20 to the chamber 12 when the valve 14 is opened with the container in inverted position. In an alternative arrangement for modifying normal discharge valves, the chambers 12, 18 and dip-tube 24 comprise a unit, the chamber 12 being arranged for attachment to the dip tube connection of the normal valve.
Patent GB-217758-A (GB)
Title: Improvements in dyeing and like machines
IPC: D06B5/00
Filed: 1923-06-08
Abstract: 217,758. Mitchell, I., and Wordsworth, G. H. June 8, 1923. Circulating liquids through materials.-Apparatus for dyeing textile fibres in the form of balls or cheeses comprises a tank a provided with an inner vessel b divided by means of vertical fluted strips b<1> and pillars b<2> into a number of intercommunicating compartments each of a size to accommodate a series of balls or cheeses c placed one upon another. A perforated plate d forms a support for the material and below this is a chamber e connected at f to a pump by which liquor may be free or drawn through the material. The upper end of the compartments is closed by a perforated plate g which may either be in one piece or in sections. The tank a is preferably of such size as to provide a space a<1> for boiling the liquor which may be heated by steam pipes.
Patent GB-1470514-A (GB)
Title: Levelling measuring or surveying apparatus
IPC: G01C15/12
Filed: 1974-03-22
Abstract: 1470514 Levels; set squares W G JONES and J I DAVIES 22 March 1974 [29 March 1973] 15125/73 Heading G1F and G1X A device for determining the relative levels of two spaced locations comprises a tube 12 containing a liquid and attached to a member 1 which is slideable relative to another member 5. The member 5 may be provided with spirit levels 3 and a thumbscrew 6 for locking the two members in their relatively adjusted positions. In use, and with the transparent tube 12 connected by way of a flexible hose 17 to a reservoir 18, a vent valve 14 in the tube 12 is opened and the member 1 is held vertical and adjusted vertically over one of the locations until the liquid level in the tube 11 registers zero on a scale 10. The member 5 is now released and slid downwards into contact with the floor and any consequent deviation from zero of the liquid level corrected. The thumbscrew 6 is tightened, the vent valve is then closed, and the device is moved to the other location where, when the device is held vertical on the floor thereat, and the vent valve re-opened, the liquid level will indicate any difference in height of the locations. The device may be used as a set square when the  member 5 is located in a transverse groove 20 of the member 1. The spirit levels enable it to be used as an ordinary builders' level.
Patent GB-891204-A (GB)
Title: Improvements in or relating to apparatus and methods, for severing castings containing solid material
IPC: B23D21/00
Filed: 1960-04-29
Abstract: 891,204. Shearing; breaking. COMMISSARIAT A. L'ENERGIE ATOMIQUE. April 29, 1960 [May 4, 1959], No. 15175/60. Class 83 (4). [Also in Group XL (a)] A method of severing the cylindrical casing 1 of irradiated fissile material &c. 4 comprises clamping the casing between jaws 6 in one plane and between jaws 10 in another plane, and maintaining the first jaws 6 stationary while rotating jaws 10 in the clamped state. The part severed rotates with jaws 10, torsion causing severance except for ribs 3 on the casing, which are sheared between the jaws 6, 10, as described below. A jaw 6, Fig. 9, and an adjacent similar jaw 10 are provided for each flute defined by the ribs 3, constructions using 2, 4 or 6 jaws in each set also being referred to. The jaws 6 are closed by engagement between cam surfaces C, Fig. 8, on a disc 7 and abutments B on the jaws, and opened by pegs 49 on the jaws engaging inclined slots 50 in the disc. A similar disc 11, Fig. 10, operates the jaws 10, which are in guides 48 in a rotatable disc 47 having an arm 17 to which an upward pressure is constantly applied by a rod 23. The work is guided in a channel 19 and fed intermittently by a pusher 20 operated by a cable 21, pulleys 22 and a ratchet mechanism 39, 40. Return of the pusher is by a hand wheel 52. A feed-stop 5 is mounted on links 18, 37 controlled by a rod 24. Rotation of the cam discs 7, 11 is by rods 8, 12, and the rods 8, 12, 23, 24 and feed-pawl 39 may be operated by pneumatic cylinders 25-29 remote from the work, which may be immersed in water or insulated by lead, concrete, &c. Operation.-The work is fed against the stop 5 and the feeding pressure maintained while the work is clamped and impressions formed therein by teeth 9 on the jaws through operation of cylinder 25. The stop is lowered by cylinder 36, and the other jaws 10 are closed by cylinder 46. Continued pressure by cylinder 46 rotates the cam-disc 11, jaws 10, disc 47 and the work as a unit, shearing the ribs 3 between the jaws and severing the casing by torsion at the junction between sections of the fissile material. After return of the discs 7, 11 and 47, pusher 20 completes its stroke and ejects the severed end of the work into a reception channel.