baber/WOPTO huggingface dataset:
Patent GB-384323-A (GB)
Title: Improvements relating to electrical switches of the tumbler type
IPC: H01H23/16
Filed: 1931-03-03
Abstract: 384,323. Tumbler switches. CRABTREE,.J. A., Endwood, Little Aston Park, Sutton Coldfield. March 3, 1931, Nos. 6536 and 6537. [Class 38 (v).] A tumbler switch of the type in which a tumbler lever h is connected to a contact-arm .d by means of a floating toggle-link f has an abutment'plate a having an aperture so shaped as to provide clearance for and positive start fulcra for the floating link f. The plate a is placed across a central well in the base and is secured bv vertical bolts which hold the ends' of the pivot pin d<1> of the tumbler h, and spacing washers (not shown) may be threaded on the bolts to adjust the height of the mechanism relative to the plate a. The floating link f has a narrow lower portion on which a compression spring f<4> is confined so that the upper part of the link may bear directly on tongues e in the aperture in the plate a, to give a positive start. The aperture is extended to form slots c<1> on each side of the tongues e to give clearance for the two sides of the contactarm, and the ends of the slots serve as stops for contact-arm. The height of the abutment plate may also be varied by having the ends of the plate stepped or cranked. Specifications 142,225 and 306,919, [both in Class 38 (v), Electric switches &c.], are referred to.
Patent GB-525768-A (GB)
Title: Improvements in and relating to building blocks
IPC: E04C1/39
Filed: 1939-02-28
Abstract: 525,768. Floor blocks. NAGYBATONYUJLAKI EGYESULT IMPARMUVEK RESZVENYTARSASAG. Feb. 28, 1939, No. 6585. Convention date, March 1, 1938. [Class 20 (iv)] A rectangular building block more particularly for floors has two adjacent sides stepped or inclined inwards at one end. Flanges n, n', Fig. 6, may extend from the other sides along the length of the block. One, two or more holes may extend through the block. Grooves h, h', h<SP>2</SP>, h<SP>3</SP>, Fig. 9, may be provided adjacent reinforcing rods m which are arranged in concrete b forming a frame between the blocks.
Patent GB-608976-A (GB)
Title: Improvements in or relating to plug and socket connectors for electric circuits
IPC: H01R13/453
Filed: 1946-03-04
Abstract: 608,976. Two-part couplings. WALSALL CONDUITS, Ltd., and GOUGH, E. March 4, 1946, No. 6597. [Class 38 (i)] In a socket connector having a spring- controlled insulating shutter which normally prevents access to the " live " sockets, the shutter comprises a T-shaped member 20, the central limb 19 of which passes through and is guided by a slot in the bent-up extension 30 of a plate 22 secured to the base 12 by the earthing socket 21. The arms 33 of the T-shaped member normally cover the " live " sockets 13 but allow access of the plug when the plug pins engage inclined faces 34 to operate the shutter against the action of a spring 17. The plate 22 is provided with holes 24 for mounting the connector on an external support. The Provisional Specification describes an arrangement wherein the initial movement of the shutter is produced by the earthing pin of the plug.
Patent GB-792026-A (GB)
Title: Open gear lubricants
Filed: 1956-03-02
Abstract: A lubricating oil composition comprises a major proportion of a mineral lubricating oil base having a viscosity of 800 to 6,000 S.S.U./210 DEG  F. and a minor proportion of a volatile solvent and a copolymer of isobutylene and styrene containing between 40 and 60 per cent wt. of the styrene component.  The composition may also contain dimethyl silicone polymers and conventional additives, e.g. phenyl alpha naphthylamine, alkali and alkaline earth petroleum sulphonates, lead oleate, sulphurized fatty oils and colloidal graphite.  Suitable mineral oils are asphalts and petroleum residues.  The volatile solvent may be trichlorethylene, carbon tetrachloride or naphtha.  In an example, 1 per cent wt. of a 50/50 w./w. isobutylenestyrene copolymer having an intrinsic viscosity between 0.7 and 1.2 is incorporated in a viscous mineral oil and the mixture diluted with 10 per cent wt. of trichlorethylene.
Patent GB-553890-A (GB)
Title: Improvements in and relating to grinding, lapping or polishing machines for diamondsor other crystals and the like
IPC: B24B9/16
Filed: 1942-05-16
Abstract: 553,890. Polishing diamonds &c. JEARUM, F. C. May 16, 1942, No. 6669. [Class 60] A machine for lapping &c. diamonds &c. comprises a tang carrying a head in which is provided a vertically sliding bed adapted to receive a vertical dop which is releasably held and allows the stone to bear on a scaife by gravity action. The machine comprises a bed 1 having a longitudinal slot in which is mounted a block 2 coupled thereto by a locking- member 2a and formed with a slideway for the tang 3, which is of diamond or square cross section and can be adjusted by means of a wire or ribbon 3d anchored thereto and passing round a transverse, hand-operated spindle 3e. The tang is furnished with a head 4 in which slides, on ball bearings, a member 5 formed with a V-shaped channel for receiving the barrel 6 of the dogs having a lug 6a extending into a cavity in the member 5 and secured by the engagement of the eccentric part 7 of a pin 7a. The barrel forms a mount for a sleeve 8 the lower end of which carries a sleeve 11 fitted with fingers 11a gripping the stone which abuts against a spindle 12a abutting in turn against a spindle 12b fitted with a micrometer screw 12c. The upper part 8a of the sleeve 8 is slidable on a key 8c and is engaged by a clamping nut 8d ; a worm wheel 9 on the sleeve enables the stone to be rotated. The bed 5 is fitted with a post 5b engaged by a counterweighted lever 13 for lifting the stone from the scaife which may be given a planetary or simple rotary motion.
Patent GB-471592-A (GB)
Title: Improvements in or relating to oral prophylactics
Filed: 1936-03-05
Abstract: An oral prophylactic consists of an oxygen-yielding compound, such as sodium perborate ground at least in part to bacterial or colloidal fineness and mixed with a non-oxidizable oil such as medicinal paraffin.  A reagent serving to increase the surface tension of the suspension and having germicidal and like properties is preferably added, suitable substances being auramine and closely related compounds, malachite green, rosaniline or aurine, dissolved in glycerin.  A colouring agent, such as sitro yellow which acts also as a stabilizer, and a flavouring material may also be added.  The paraffin oil may be replaced by fatty oils and the perborate by magnesium peroxide. The perborate is preferably partly dehydrated or mixtures of perborates containing varying proportions of water of crystallization may be used.
Patent GB-884174-A (GB)
Title: Molecular model construction devices
IPC: G09B23/26
Filed: 1959-02-27
Abstract: 884,174. Molecular models. DRElDlNG, A. Feb. 27, 1959 [March 3, 1958], No. 6966/59: Class 146(2) A device for simulating an atom for use in assembling molecular models comprises tubes a and rods b rigidly bound together at a fixed angle characteristic for the nature and position of the atom to be represented. The lengths of the rods and tubes are characteristic of the atoms concerned and they can be joined together with a rotatable sliding fit stops being provided in the tubes so that the total length of joined rod and tube is proportional to the separation of the atoms being represented. Two models can be fastened to each other by means of an elastic band or spiral spring connected to the central point of each device.
Patent GB-563704-A (GB)
Title: Improvements in domestic appliances for drying or airing clothes
IPC: D06F57/08
Filed: 1943-05-04
Abstract: 563,704. Hinges. SAVILLE, H. S. May 4, 1943, No. 7008. [Class 65 (ii)] A hinge for a domestic clothes horse A comprises two pairs of wire or strip rings b, b<1>, the pair b being connected so that they lie in the same horizontal plane, while the pair b<1> are similarly arranged, and the two pairs are connected by one or more distance pieces b<2> so that one pair lies above the other below a horizontal bar a<1> of the horse. The form shown in Fig. 8 is for use on the verticals. a, a screw being inserted in the space b<3> to hold the hinge in position. The hinge may be made of metal, plastics, &c.
Patent GB-525941-A (GB)
Title: Improvements in or relating to non-skid chains for vehicle wheels and wheels provided with such chains
IPC: B60C27/06
Filed: 1939-03-03
Abstract: 525,941. Wheel tyres. FABREGUE, G. March 3, 1939, No. 7045. Convention date, March 19, 1938. [Class 144 (ii)] The ends of a non-skid chain 2 adapted to encircle, wholly or in part, a pneumatic &c. tyre are fitted with short chains 3 for attachment to hooks 4 on the wheel-rims and to lie substantially tangential to the latter when the device is assembled. As shown in Fig. 4, the adjacent end chains at each side of the wheel may overlap; and, the device may be formed in two sections each embracing half the tyre periphery.
Patent GB-921846-A (GB)
Title: Improvements in pulse jets
IPC: F02K7/06
Filed: 1961-02-27
Abstract: 921,846. Generating combustion products under pressure. H. MAERSK - MOLLER. Feb. 27, 1961, No. 7115/61. Class 51 (1). [Also in Group XXVI] A pulse jet unit comprises a combustion chamber, a fuel injection device, a propulsion nozzle and a pressure air reservoir separated from the combustion chamber by. means of a shut-off member, and mechanical means for actuating the shut-off member and the fuel injection device in such a manner that pressurized air or air and combustion gases enters the combustion chamber at the time of fuel injection. The unit shown in Fig. 1 comprises a combustion chamber 3, fuel injection device 7, propulsion nozzle 9 and a reservoir 1 which is supplied with compressed air from a compressor, not shown, through duct 2. A shut-off member 4 is disposed between the reservoir and the combustion chamber being actuated by means of a diesel engine 5, which runs at constant speed. The engine 5 also operates the fuel injection device 7. A sparking plug 8 is provided for use at starting. When the shut-off member 4 is opened the chamber 3 is supplied with air under pressure and fuel is supplied simultaneously through the injection device 7. In the embodiment shown in Fig. 2 a pressure reservoir 11 is again provided but it is not supplied from a compressor, but receives a charge of combustion gases and air under pressure from the combustion chamber 14 through the shut-off member 12 at each combustion phase. Atmospheric air is drawn in through the inlet valves 15 as the combustion gases are discharging through the outlet nozzle 18 and the shut-off member 12 then opens and the combustion gases and air flow from the reservoir into the combustion chamber so producing pre-compression. Fuel is injected simultaneously into the chamber and the mixture ignites spontaneously, the gases discharging both through the nozzle 18 and into the reservoir 11, the shut-off member 12 being closed when the pressures in the reservoir and combustion chamber are equalized, the remaining gases continuing to discharge through the nozzle 18. The shut-off member is arranged so that the periods during which the member is open are always equal but the periods during which the member is closed vary regularly between a maximum and a minimum. The shut-off member may comprise for example a rotatable disc having a hole which is alignable with unevenly spaced holes in a fixed disc. Alternatively a rotary disc valve may be caused to rotate with a varying angular velocity.
Patent GB-563741-A (GB)
Title: Improvements in air or gas compressors
IPC: F04B39/06
Filed: 1943-05-05
Abstract: 563,741. Air and gas compressors. BROOM & WADE, Ltd., and SMITH, C. B. May 5, 1943, No. 7157. [Class 8 (i)] In a sleeve valve compressor having an inwardly projecting head. 15 co-operating with the valve 7, the valve is grooved to receive a contracting sealing ring which may be formed in two parts 18,19. Gas is admitted through an annular chamber in the cylinder and a ring of ports in the sleeve, and is discharged through slots 16 in the head, and the space 14 above the valve, when the slots are uncovered thereby. Further discharge takes place from the space 14, through an annular lift valve (not shown) as the sleeve still rises after covering the slots 16.
Patent GB-557706-A (GB)
Title: Improvements in or relating to machines for extruding plastic materials, particularly over electric conductors
IPC: B29C48/06
Filed: 1942-05-28
Abstract: 557,706. Covering electric conductors by extrusion ; injection-moulding. STANDARD TELEPHONES & CABLES, Ltd., BROUCHTON, J: DELVES-, and BROUGHTON, P. N. DELVES-. May 28, 1942, No. 7231. Addition to 549,713. [Class 87 (ii)] A machine for extruding a plastic covering other than rubber over an electric conductor comprises a point nose 2 secured to a point body 1 mounted at its base remote from the point nose, and a spider 3 fitting over said point nose and supporting said nose within a removable cylindrical body 9 which supports a die 4 in concentric relation with the point nose. Between the spider and the die is positioned a spacing ring 8. Electrical heating elements 11, 12, 13 have a force fit on the slightly tapering outward end of the cylinder 9, and may be calibrated to give a temperature increasing or decreasing towards the outward end, or the middle element 12 may produce a temperature higher than that produced by the other elements. The material being extruded is heated also by steam passages in the extrusion head. The nose 2 may be replaced by a solid nose and the die 4 modified by threading externally to affix to a mould.
Patent GB-1274869-A (GB)
Title: Enzymes
Inventor: WAINWRIGHT TREVOR
IPC: C12N11/08
Filed: 1969-02-11
Abstract: 1,274,869. Enzyme coatings. ARTHUR GUINNESS SON & CO. (DUBLIN) Ltd. 5 Feb., 1970 [11 Feb., 1969], No. 7240/69. Heading B2E. [Also in Division C3] An enzyme is insolubilised by chemical bonding to a synthetic resin in the form of a film on a surface. The resin may be ethylene maleic acid copolymer; it may be deposited on the surface from aqueous or organic solution, and treated with a solution of the enzyme; the polymer may be cross-linked with a polyol, polyamine or amino acid, or hydrazine, urea, guanidine, polyvinyl alcohol, polyvinyl pyrrolidone or carboxymethyl cellulose, before or after treatment with the enzyme. The surface may be fabric, aluminium, glass, PVC, paper, wood, synthetic sponge, stainless steel, polythene, or silicone rubber, and may be flat or the inside of a vessel or tube; coating may be by immersion, or by application with a rod or brush. The enzyme may be papain, a proteinase, pancreatin, trypsin, chymotrypsin, pepsin, asperaginase, amyloglucosidase, cellulose, α-amylase, takadiastase, #-glucosidase, hexokinase, pyrophosphatase, catalase or xanthine oxidase.
Patent GB-434815-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B57/12
Filed: 1934-03-07
Abstract: Separation of mixtures of isomeric 1.4.5.8-naphthoylene - diarylimidazoles obtainable according to Specifications 237,294, 265,232, and 265,964, [all in Class 2 (iii)], into their constituents is effected by first heating the mixture with an alkali metal compound of strong alkaline action (except caustic alkali) in presence of a water-miscible solvent or diluent, then separating the compounds thus obtained by taking advantage of their different solubilities and recovering the vat-dyes from these separated compounds.  Suitable alkali metal compounds are alkali amide and alkali alcoholate; suitable water-miscible diluents are alcohol or pyridine.  The isomers appear to form addition products with the alkali metal compounds and these can be separated by virtue of their different solubilities and decomposed by hydrolysis.  In examples: (1) the dye mixture obtained by condensing naphthalene-1.4.5.8-tetracarboxylic acid with o-phenylenediamine (cf. Specification 237,294) is heated in alcohol with sodamide; on cooling a precipitate is filtered off and treated with water whereby an orange dye (trans-form) is obtained; by treating the alcoholic filtrate with water a red isomeric dye is precipitated; (2) the dye-mixture of (1) is heated in alcohol with sodium ethylate and on cooling the precipitate is filtered off; treatment of this with water and similar treatment of the filtrate yields the orange and red isomers respectively; sodium ethylate may be replaced by sodium methylate.  The Specification as open to inspection under Sect. 91 comprises two additional examples wherein the dye mixtures obtained by condensing 2-bromonaphthalene-1.4.5.8-tetracarboxylic acid with 3.4-diaminotoluene and 3.4-diamino-1-ethoxybenzene are respectively separated by heating in alcohol with sodamide and sodium ethylate followed by similar procedure to that specified in (1) and (2).  This subject-matter does not appear in the Specification as accepted.
Patent GB-113881-A (GB)
Title: Improvement in Chain Liuks, Shackles and Hooks.
Inventor: CORLETT WILLIAM HAROLD
IPC: F16G15/00
Filed: 1917-05-21
Abstract: 113,881. Corlett, W. H., and Hindle, J. May 21, 1917. Oval-link chains; shackles. -.A chain link e is made with a bar a at one or both ends, of less strength than the main parts of the link, so that when the chain is in use, breakage of the bars a occurs before the stress is sufficient to break the chain. The slot b may be enlarged at the ends d. In a welded link, the weld is at the part c. A shackle f may be similarly formed.
Patent GB-116120-A (GB)
Title: Improvements in Machines for Sorting Potatoes and the like and Separating them from Stones, applicable also for Collecting Potatoes from the Ground.
Inventor: GITTINS ROGER
IPC: A01D33/04
Filed: 1917-05-21
Abstract: 116,120. Gittins, R. May 21, 1917. Separating or sorting by weighing. - In order to eliminate stones, potatoes are sorted into sizes by screening, being then passed down passages or shoots 30 of widths approximating to the sizes of the potatoes, such shoots being provided with trap doors 31 adapted to open under the weight of a. stone, though not affected by the weight of a potato of approximately equal size. Means such as an upstanding part 33 is provided on the trap door to obstruct the further passage of potatoes when the door is open. The door is pivoted as shown in Fig. 3, being closed by a spring 32 and normally secured against vibration by a projection 46 engaging a fixed spring 47. When depressed by a stone, quick opening is ensured by engagement of a lug 41 on the door, with an arm 40 on an adjacent rotating spindle 35.
Patent GB-159886-A (GB)
Title: Process for making gas
IPC: C10B1/04
Filed: 1921-03-08
Abstract: 159,886. McDonald, J. U. March 10, 1920, [Convention date]. Charging and discharging. - Carbonaceous. matter is charged into a chamber 17 communi. cating through a valve 18 with a feeding chamber 6 having a helical conveyer 11 which feeds the material into an externally heated retort 1. A screw conveyer 27 passes the residue through a valve 29 to another conveyer 31 which discharges. into a receptacle 32.
Patent GB-765029-A (GB)
Title: Gramophone record
IPC: G11B3/70
Filed: 1955-03-14
Abstract: 765,029. Gramophone records. RADIO CORPORATION OF AMERICA. March 14, 1955 [April 29, 1954], No. 7425/55. Drawings to Specification. Class 40 (2). A gramophone record is progressively tapered in thickness outwardly from the label area, said label area being parallel in thickness and of a thickness shghtly greater than the maximum thickness of the recorded area, and the marginal portion of the record having a thickness greater than the minimum thickness of the recorded area.
Patent GB-313215-A (GB)
Title: Improvements relating to wagon tipplers
IPC: B65G67/00
Filed: 1928-03-10
Abstract: 313,215. West, F. J., West, E., and West's Gas Improvement Co., Ltd. March 10, 1928. Tipping-aparatus. - The tippler comprises an L-shaped cradle b, b fitted with rollers c and turning in fixed frames a adapted for the passage of through traffic including locomotives. The rail platform h is separate from the cradle and is normally supported with rollers k<1>, k<2> at each end resting upon curved tracks on foundation blocks j. The cradle carries a motor d driving pinions f engaging toothed racks 9 on the frames a. The initial movement of the cradle counterclockwise in the frames a brings blocks (not shown) on the cradle against the rollers k<2>, and further movement tilts the wagon against spring- pressed clamps p, the uppermost of the clamps overlapping the top edge of the wagon side. The wagon now moves with the cradle, the platform h leaving the foundation blocks and resting on brackets on the cradle. An arm n carrying spring-pressed clamps o is pivoted on the platform at q. As the cradle turns, a surface s on this arm engages a cross girder t on the frame and when the arm has passed the vertical position it swings against the wagon and is retained there by its weight On return movement the arm n is withdrawn by a stirrup r on the cradle.
Patent GB-622529-A (GB)
Title: A process for the manufacture of úõ-ª†-ribonic acid lactone
Filed: 1947-03-19
Abstract: d-Ribonic acid dissolved in an organic solvent is catalytically lactonized to d-g -robonolactone on treatment with a strong acid. Acids specified are sulphuric, hydrochloric phosphoric, trichloroacetic and sulphonic, e.g. benzene sulphonic acids, strong mineral acids being preferred.  The dissociation constant of the acid should be not lower than 1 X 10-1  Solvents specified are lower fatty alcohols, e.g. methanol and ethanol.  In an example, d-ribonic acid, derived from calcium-d-ribonate, is dissolved in methanol containing sulphuric acid and d-g -ribonolactone obtained crystalline by the addition of n-butanol with subsequent distillation under reduced pressure of a portion of the solvent.
Patent GB-1414259-A (GB)
Title: Plant growth regulators
IPC: A01N/
Filed: 1973-02-16
Abstract: 1414259 Plant growth regulation BADISCHE ANILIN- & SODA-FABRIK AG 16 Feb 1973 [18 Feb 1972] 7640/73 Heading C1B A plant growth regulating composition comprises a salt of the formula where R denotes methyl or ethyl, X<SP>(-)</SP> denotes one equivalent of a non-phytotoxic or selectively phytotoxic anion, and A denotes a chain of 4 or 5 methylene groups which chain may be substituted by one or more of chloro, bromo, methyl, chloromethyl, bromomethyl, hydroxymethyl and/or methylene, and/or which chain may contain one or two double bonds or A denotes the chain -(CH 2 ) n -NH-, n denoting 3 or 4, and a solid carrier, or an emulsifying, wetting or dispersing agent, an organic liquid boiling above 150 C. and/or a fertilizer or other non-phytotoxic or selectively phytotoxic biologically active compound. The active ingredient may contain as the heterocyclic ring, an optionally substituted piperidine, dihydropyridine, pyrroline or pyrrolidine ring. The compositions may be applied to poinsetta, hibiscus, oats, wheat, barley, rye or potatoes. In examples the active ingredients used are; 4-chloro-1,1-dimethylpiperidinium bromide; 1,1 - dimethyl- 3,4 - dehydropiperidinium bromide and 1,1- dimethylhexahydropyridazinium bromide.
Patent GB-1153444-A (GB)
Title: Transverse Bracing Grids for Clusters of Heat Exchange Elements.
Inventor: SAUNDERS ALAN CHARLES ANTHONY
IPC: G21C3/344
Filed: 1966-02-22
Abstract: 1,153,444. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 27 Jan., 1967 [22 Feb., 1966], No. 7680/66. Heading G6C. A transverse bracing grid for a fuel element cluster consists of a group or groups of cells, each cell comprising two axially spaced annular members having resiliently flexible interconnecting limbs extending helically between them, the limbs being formed to provide protruberances extending radially inwardly of the cell for bearing resiliently on an element penetrating the cell, and the annular members of adjacent cells being peripherally contiguous. Each limb may have two convexities disposed one each side of its protruberance so as to provide resilient stops or pads to reduce transverse movement of the fuel elements during transport and handling. Where there are three limbs, two may be made less flexible than the other by increasing their width in order to provide more stable location of the fuel elements. The cells are formed either from stamped strip or from thinwalled tube.