baber/WOPTO huggingface dataset:
Patent GB-712284-A (GB)
Title: Improvements in or relating to optical systems comprising a spherical concave mirrorand a meniscus lens
IPC: G02B17/08
Filed: 1952-10-13
Abstract: 712,284. Optical systems. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. Oct. 13, 1952 [Oct. 15, 1951], No. 25607/52. Class 97(1) In an optical system comprising a concave main mirror corrected by a meniscus lens which is curved in the same sense as the main mirror and is placed between the main mirror and its centre of curvature, a secondary convex or plane mirror is located on the concave surface of said meniscus lens or at a distance therefrom which is less than 0.15 times the equivalent focal length of the system, such that the light rays traverse the lens three times. As shown the secondary mirror may be made by silvering the central portion of the concave surface 1 of the meniscus lens I and II. The main mirror III with reflecting surface 4 may have an aperture in its centre. The rays are brought to a focus at F. Alternatively a plane mirror 8 may be used, and the image is then formed at B. The main mirror and the two external surfaces of the meniscus lens may be concentric: Specification 638,975 is referred to.
Patent GB-408148-A (GB)
Title: Improvements in and relating to electric welding machines
IPC: B23K9/133
Filed: 1933-09-15
Abstract: 408,148. Supplying current to moving conductors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Cooper, J. H. ; 1044, University Place, Schenectady, New York, U.S.A.) Sept. 15, 1933, No. 25619. Convention date, Sept. 17, 1932. [Class 38 (i).] In an arc-welding machine using a coated electrode, means are provided for removing a segmental portion of the coating and for supplying current to the flat surface so exposed. The electrode is fed by rolls and the coating removed by a milling cutter. The contact mechanism may comprise a frame consisting of side plates 36 and end plates 46 and rods of insulating material or surrounded by insulation. Flanged rolls 37 are carried by the plates 36 and pressure rolls 38 are preferably provided to co-operate therewith. A series of adjustable slotted brushes 39, connected by conductors 40 at spaced points to a bus-bar so as to distribute the current equally to the brushes, are carried by arms 43 extending from hubs 44 on the rods, a number of rolls 38 being also similarly mounted. The arms on one rod are arranged opposite the hubs on the other rod, the brushes being opposite the flanged rolls. The arms are pressed towards the electrode by springs 50 fixed at one end to the plates 36 and engaging at the other end one of a number of notches in a strip clamped on the hubs so as to vary the pressure. The arms may be connected together and moved simultaneously by a single member. The electrode passes through the nozzle 53. In a modification, Fig. 9, the contact mechanism consists of an adjustable plate 58 carrying pressure rolls 57 co-operating with flanged rolls 56 on the frame and also brushes 63 secured in spring-pressed slotted blocks 59, which are connected by conductors 61 to spaced contacts on a bus bar 62.
Patent GB-1143514-A (GB)
Title: Moulds for the manufacture of asbestos-cement products
IPC: B28B1/24
Filed: 1967-06-02
Abstract: 1,143,514. Injection moulding asbestos cement. URALITA S.A. 2 June, 1967 [2 June, 1966], No. 25631/67. Heading B5A. [Also in Division E1] An asbestos cement article, e.g. a squaresection pipe, is formed in a mould cavity 24 containing a distensible, e.g. rubber, pressure applying member 14 and wherein the cavity is fed from a chamber 17 at one side by pressure flow in a laminar manner through an elongated slot 19, corresponding to the shape of the article, whereby excess asbestos cement material from the cavity 24 discharges through a similar elongated slot 18 at the other side of the mould, to a similar chamber 17. In the production of a square-section pipe, the distensible member 14 is supported on a core 13 and supplied with pressure air, through a hollow core spindle 15, after the mould has been filled, via a supply pipe 22 from an injector, and with excess material returned to an agitator via a similar discharge pipe 21. Mould walls 1 and 2 are hinged to open and close about end members 10, 11 wherein are defined the chambers 16, 17. The cavity defining portions of the mould walls are perforated at 4, for drainage of excess water, and lined with a filter 5 of perforated sheet, wire mesh or synthetic fibre woven fabric. The distensible member 14 seals at each end of the cavity against rubber rings 8, 9 and may be successively distended to compress successive charges of material against charges previously compressed against the cavity walls. Cylindrical and straight or curved tubes or tube forks or triple forks may similarly be moulded. In an alternative mould for production of a tip or ridge tile (Figs. 3 and 5, not shown) the mould cavity is defined between mould halves (28, 25), Fig. 3, not shown, which may be pivotally connected, or between mould halves (46, 43), Fig. 5, not shown, the lower whereof may be slidably raised within the upper to compress the material prior to a further compression by distensible members; the tile is formed with longitudinally extending corrugations and a channel at one end extending transversely thereto. The corrugations and channel are defined by respective upper mould members (30) which clamp the distensible pressure applying members (31). The inlet and outlet elongated slots to this construction of mould are respectively closed by a weakened zone (33) of one distensible member (31) abutting with the lower mould half and the other distensible member (31) contacting a rubber member (34) on the lower mould half. The moulding may be removed by suction grippers.
Patent GB-1267682-A (GB)
Title: Countersinking tool
Inventor: HALPERN WILLIAM
IPC: B23B51/10
Filed: 1969-05-20
Abstract: 1,267,682. Countersinks. W. HALPERN. 20 May, 1969 [9 Oct., 1968], No. 25642/69. Heading B3C. A countersinking tool comprises a nose-cone 11 including a slot 16 receiving a cutter 12 with diametrically opposed cutting edges (30, 32) (Fig. 4, not shown) at an angle greater than that of the apex of the cone, said cone having a chip-controlling groove 40 adjacent the leading edge of each cutting edge, and means mounting the nose-cone and cutter and resiliently urging the latter axially away from the apex of the cone and permitting axial movement of the cutter relative to the cone to progressively expose the cutting edges toward the apex. The cutter 12 is secured to a shank 4 provided with a collar 6, a resilient sleeve 10 acting between the collar and the nose-cone to retract the cutter fully into slot 16, but allowing projection of the cutter axially outwardly of the slot upon application of pressure to shank 4, to expose the cutting edges. The cutting edges are formed inwardly (as at 36) (Fig. 6, not shown) with an arcuate groove which co-operates with the chipcontrolling groove 40 on the nose-cone, to break and remove the cuttings.
Patent GB-169377-A (GB)
Title: Improvements in or relating to rotary electric distributors for internal combustion engines
IPC: F02P5/06
Filed: 1920-09-06
Abstract: 169,377. Atkinson, C. L. Sept. 6, 1920. Rotary distributors; timing-devices.-Relates to rotary distributors for internal-combustion engines, and comprises means for automatic control of the time of ignition in accordance with the speed of the engine. The distributor consists of a two-part casing 10 of insulating-material, the rotating shaft 15 passing through a sleeve 14 of the casing section 11, and the other casing section 12 carrying the fixed contacts and distributor terminals. Secured to the end of the shaft 15 is a rotatable insulating-support 16, on which is eccentrically pivoted a metal arm 19, and the movable contact 28 is carried on a rod 22 mounted in the free end of the arm 19, pressure between the fixed and movable distributor contacts being provided by a spring 26 interposed between the arm 19 and the contact 28. The contact-carrying rod 22 is adapted to move in an arcuate slot 23 of the support 16, a spring-pressed. rod 30 mounted in an eye 31 on the support being provided to hold the rod 22 normally in its inner position. Current is supplied to the rotating contact member by means of a flat metal spring 36 secured to the pivot of the arm 19, the other end of the spring carrying a recessed block 38, which bears against a central fixed terminal post 39. The stationary distributor contacts 42, Fig. 2, electrically connected to terminal posts 43 are curved longitudinally in the direction opposite to the direction of rotation, thereby causing automatic advance of the time of ignition as the centrifugal force resultant upon increase of engine speed forces the movable contact member 28 further from its rotational axis. The contacts 42 are arranged tangentiallv to the axis of the distributor head 12, and widen as they approach its periphery in order to prolong the time of ignition at high engine speeds. In a modified form, in which an earthed rotating contact member is employed, the rotatable supporting-plate is formed of metal, enabling the conducting- spring 36 and central supply terminal 39 to be dispensed with. To prevent unevenness of wear of the rotating contact-member 28, it may be rotatably mounted on the end of its supporting- rod 22, Fig. 6.
Patent GB-716272-A (GB)
Title: A new or improved rear mounting for the power unit of a motor vehicle
IPC: B60K5/12
Filed: 1952-10-21
Abstract: 716,272. Engine mountings. METALASTIK, Ltd., and HIRST, A. J. Oct. 22, 1951 [Oct. 21 1950], No. 25702/50. Class 79(3) In a flexible mounting for the rear end of a vehicle power unit comprising a link incorporating two spaced rubber bushes, the axes of the bushes are at right angles to the longitudinal centre line of the unit and lie in a common plane which, when the link is under load, is parallel to or inclined at a small angle to the principal axis of inertia of the unit, the link supporting the rear end of the unit from the vehicle frame in such a manner that the portion of the weight of the unit taken by the link stresses the bushes wholly or mainly in torsion and fore-and-aft loading due to acceleration, braking and declutching forces stressing the bushes in radial compression and tension. As shown the link 12 has parallel bores to the surfaces of which are bonded the rubber bushes 13, 14, or alternatively the connections may be effected through sleeves on the bushes. Secured to bores in the bushes are sleeves 15 and the link is arranged between lugs 16 on the housing 17 for the output shaft 11 of the vehicle power unit 10 A bolt passes through the lugs 16 and the sleeve 15 in the forward end of the link and a similar connection is effected between the sleeve 15 at the rear end of the link and lugs of a frame cross member so that the axes of the bushes lie parallel to the principal axis of inertia A of the power unit. In a modified construction of the link, Figs. 4 and 5 (not shown), the link is formed of spaced parallel plates. Specification 662,688 is referred to.
Patent GB-369238-A (GB)
Title: Improvements in the manufacture and production of valuable derivatives of polymerised cyanoanthraquinone compounds
IPC: C09B6/00
Filed: 1930-08-28
Abstract: The polymerized aminocyanoanthraquinones obtainable according to the parent Specification and Specification 309,454, [Class 2 (iii), Dyes &c.], are treated with acylating agents to give dyestuffs.  Diluents and acid-binding agents may be present and halides or anhydrides of organic acids may be used as acylating agents.  Aliphatic acids, such as acetic and propionic acids, or aromatic acids, such as benzoic, naphthoic and phthalic acids, are suitable acids for acylating purposes.  In examples (1) the polymerized product of 2-amino-3-cyanoanthraquinone (obtainable as described in example 1 of the parent Specification) is treated with benzoyl chloride alone, or in nitrobenzene or other organic diluent (dyes greenish-yellow), p-chlorbenzoyl chloride (dyes lemon-yellow), and with m-methoxybenzoyl chloride (dyes greenish-yellow): (2) polymerized 1-bromo-2-amino-3-cyanoanthraquinone (obtainable by heating 1-bromo-2-amino-3-cyanoanthraquinone in quinoline with cuprous salts according to the parent Specification) is treated with benzoyl chloride (dyes yellow).  The Provisional Specification also refers to the acylation of products obtainable according to the parent Specification and Specification 309,454, and of the general formula <FORM:0369238/IV/1> wherein x is the number of molecules polymerized together, R is an anthraquinone residue which may be further substituted, and y is hydrogen or an alkyl, aralkyl or aryl group. Further in an example the product obtained by brominating in chlorsulphonic acid the starting-material of (1) above is treated with benzoyl chloride.  1-Bromo-2-amino-3-cyanoanthraquinone is prepared by brominating 2-amino-3-cyanoanthraquinone in aqueous suspension.
Patent GB-150190-A (GB)
Title: Moulds and turntable for making ferro concrete casings for water closet pans
IPC: B28B1/02
Filed: 1919-10-21
Abstract: 150,190. Williams, C. R. Oct. 21, 1919. Moulds; moulding casings for water-closed pans; centrifugal machines.-Moulds M, N, O for ferro-concrete casings for water-closet pans are shown in Figs. 3, 4, 5, that shown in Fig. 3 being in two parts secured by bolts S, T. The moulds M, N are secured to a rotary table A, Fig. 6, and the hole in the mould N is plugged. The table is rotated, liquid cement is poured in the mould, and after the cement is partly dried a portion is removed; the mould O is then inserted, cement is grouted therearound, and the whole is left to dry for about twenty-four hours.
Patent GB-616718-A (GB)
Title: Improvements relating to beehive combs
IPC: A01K47/04
Filed: 1946-08-28
Abstract: 616,718. Bee-keepers' appliances. ROUX, J. Aug. 28, 1946. No. 25796. Convention date, Feb. 6, 1945. [Class 5 (ii)] Honeycomb is made by assembling face to face strips of sheet material corrugated semihexagonally, the corrugations on opposite sides of the centre line being staggered relative to each other and being inclined upwardly from the centre. Rods passing through the assembled strips position them in the frame which is formed of inter-locking members without other fastening means. Aluminium or cellulose acetate are named as constructional materials.
Patent GB-298762-A (GB)
Title: Improvements relating to garden shears
IPC: A01G3/02
Filed: 1927-09-30
Abstract: 298,762. Davidson, P. B., Andrew, R. H., and Sorby & Sons, Ltd., R. Sept. 30, 1927. Shears.-The blade 1 and its shank and handle or tang 2 are made from a blank of sheet metal, the handle or tang 2 being bent to approximately circular cross-section and covered if desired with a comparatively thin coating of wood, rubber, thread, or other material. The part forming the shank shoulder or stop 3 may be flattened.
Patent GB-988245-A (GB)
Title: Method and apparatus for connecting guide lines to a submerged structure
IPC: E21B41/10
Filed: 1961-07-17
Abstract: 988,245. Wells. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 17, 1961 [July 18, 1960], No. 25854/61. Heading E1F. Apparatus for remotely connecting cables to the base of an underwater wellhead from a vessel, or from a platform supported on legs, comprises a guide element extending between the base and the vessel, or platform, a frame slidable along the element, means at the lower ends of the cables releasably connected to the frame, and lock-down elements on the base for locking the means at the lower ends of the cables thereto. The base 17 has a remotely controlled wellhead 18 to which is attached a buoy line 37 serving as a guide for lowering tubing 41. In its inoperative position the line and its buoy 38 are stored in a container 40. The tubing is guided by arms 44, 45 engaging the line and is adapted to be connected to the wellhead by a latch 42, a carriage 47 carrying lights and a television camera being provided to facilitate alignment of the latch and wellhead. The frame 54 supported by the cables 63, 64 is lowered down the tubing and is guided by the line, the tubing and frame being provided with interengaging parts ensuring the alignment of posts 61, 62 on the frame with split tubes 22, 23 on the base. The cables are fixed against upward movement in the posts by latches 65, and when the posts rest within the tubes stop mechanisms 71 are operated to permit the latches to fall and engage stops 75 in the tubes to connect the cables to the base before the frame is withdrawn. The buoy line or the tubing may be dispensed with when lowering the frame. The tubes on the base may be replaced by posts having shaped upper ends for engagement by the latches. Specification 988,246 is referred to.
Patent GB-1392385-A (GB)
Title: Hf coaxial cable connector
IPC: H01R13/646
Filed: 1972-06-02
Abstract: 1392385 Jointing by stamping G SPINNER 2 June 1972 [4 June 1971] 25868/72 Heading B3Q [Also in Division H2] A tool for swaging the outer conductor of a coaxial cable to an internal frusto-conical surface of a part of a cable connector (see Division H2) comprises a die 17 rotatably mounted in a tool body 16. The tool body is screwed on to the connector part to advance the die without rotation to slip under the end of the outer conductor. Handle 18 is then turned to swage the end of the outer conductor against the co-operating frusto-conical surface of the connector part by pressure of coil spring 15. Apertures 114 permit observation of the swaging process. Internal and external threads 16a, 16b are provided to cooperate with different designs of connector. In a simpler tool, Fig. 4 (not shown), spring 15 and thread 16b are omitted.
Patent GB-1179880-A (GB)
Title: Improvements in or relating to Internal Combustion Engine Cylinder Heads and Valves
IPC: F01L3/08
Filed: 1967-06-05
Abstract: 1,179,880. Joint-making packing. MOTOREN-WERKE MANNHEIM. 5 June, 1967 [22 Sept., 1966], No. 25930/67. Heading F2B. [Also in Division F1] A gasket 20 for use between shoulders 7, 19 of a valve housing and a cylinder head of an internal combustion engine (see also Division F1) comprises a metal sheathed hollow asbestos ring.
Patent GB-673997-A (GB)
Title: Improvements in or relating to process for making tetraalkyllead compounds
IPC: H01K1/50
Filed: 1949-10-11
Abstract: Tetra-alkyl lead compounds are prepared by reacting an alkylating agent with a sodium-magnesium-lead alloy, preferably in the presence of a catalyst, said alloy containing more than 0.2 atom of magnesium for each atom of lead, said alkylating agent comprising one or more esters of inorganic acids having the desired alkyl group attached to the negative radical, and said catalyst being one or more organic compounds selected from the group comprising ethers, cyclic ethers, tertiary amines and substituted ammonium salts.  The alloy may have a composition corresponding to NaaMgbPb, in which the sum of a and b is within the limits of approximately 0.5 and 3, and b is more than 0.2 and less than 3.  When a catalyst is employed, the alloy may contain from 5 to 25 per cent by weight of sodium plus magnesium and at least 2.5 per cent by weight of magnesium.  When a catalyst is not employed, the alloy may contain from 5 to 20 per cent by weight of sodium plus magnesium and more than 3 per cent by weight of magnesium.  The reaction may be conducted at a temperature between 50 DEG  and 100 DEG  C. for a time between 1\2 and 8 hours or at a temperature between 60 DEG  and 85 DEG  C. for a time between about 1 to 5 hours.  Suitable catalysts mentioned are diethyl, methylethyl, dipropyl, dibutyl and dihexyl ethers, dimethyl ether of ethylene glycol, 1,4-dioxane, anisole, tetraethyl- and trimethylethyl-ammonium iodide, triethyl- and trimethyl-amine and dimethylaniline.  Suitable alkylating agents mentioned are the monochloro, -bromo and -iodo derivatives of the paraffin hydrocarbons such as methane, ethane, propane, butane and pentane, and the corresponding trialkylphosphates, e.g. methyl bromide and iodide, ethyl chloride, bromide and iodide, n-propyl chloride, n-butyl bromide, n-amyl chloride and iodide and triethyl phosphate.  In the examples, tetraethyl lead is prepared.
Patent GB-169095-A (GB)
Title: Improvements in women's combinations
IPC: A41B9/08
Filed: 1920-09-10
Abstract: 169,095. Scott, H. A., and Pannett, D. J. F., (trading as London Hosiery Factories). Sept. 10, 1920. Combinations.-The front crotch opening of combination garments of ribbed fabric is provided with additional flaps a on each side passing beneath the crotch to merge into overlapping similar flaps e at the rear. The flaps are attached by stitching.
Patent GB-756282-A (GB)
Title: Hydraulic clutch actuating device more particularly for motor vehicles
IPC: F16D25/12
Filed: 1954-09-09
Abstract: 756,282. Gear changing with clutch control. PORSCHE, F. Sept. 9, 1954 [Nov. 13, 1953], No. 26122/54. Class 80(2) A motor vehicle clutch is engaged by hydraulic pressure acting on a piston 37 linked to a lever 39 of the clutch. Pressure oil from a pump driven by the engine is led through a pipe 2, to an auxiliary control device 3 and thence through a pipe 4 and control slider 29 to the piston 37. The auxiliary control device comprises a piston 7 normally centralized in its cylinder 6 by springs 13, 14, so that the pipes 2, 4, register with a groove 10 in the piston 7 and pressure oil passes directly to act on the piston 37. A pipe 40 leading to the pump suction registers with recesses 11, 12, on opposite sides of the groove 10. The piston 7 is connected by a rod 8 to a ring member 16 to which the gear change lever 9 is pivoted. Movement of the ring 16 is limited by fixed abutments 22, 23. When gear changing initial movement of the lever 9 moves the piston 7 to connect the pipe 4 to the suction pipe 40 whereupon a spring 38 moves the piston 37 to disengage the clutch. Oil in the pressure space 35 is connected to .a pipe 41 leading to the pump suction. .When the gear change is completed the springs 13, 14, return the piston 7 to the central position to re-engage the clutch.
Patent GB-1535037-A (GB)
Title: Interlaced multifilament yarn
IPC: D02J1/08
Filed: 1975-11-25
Abstract: 1535037 Interlaced multifilament yarn TORAY INDUSTRIES INC 25 Nov 1975 [28 Nov 1974 5 Dec 1974] 26137/77 Divided out of 1535036 Heading D1W The description is included in Specification 1535036 but the claims are directed to the yarn.
Patent GB-482700-A (GB)
Title: Manufacture of porous bodies from viscose
IPC: C08J9/00
Filed: 1937-09-28
Abstract: Particles of a metal which reacts with caustic soda with evolution of hydrogen are mixed with a solution of viscose so as to form a porous mass which on coagulation and regeneration forms a solid porous structure.  Coagulation may be effected by allowing the viscose to stand for some time, or by heating.  The process of coagulation is assisted by the heat evolved in the reaction of the metal with caustic soda, and by removal of caustic soda during the reaction. The coagulated viscose is treated with acid to regenerate the cellulose and is then washed.  Evolution of hydrogen may be retarded by mixing the metal particles, before addition to the viscose, with castor, turkey red, or other oil. Flax, hemp, cotton, jute or other fibres may be added to the viscose.  In examples, viscose is mixed with aluminium powder, and after the mass has set it is treated with sulphuric acid, washed, and dried.  A light porous mass is obtained. Aluminium alloys or zinc may be used instead of aluminium.  The porous bodies obtained may be used as insulating material or as artificial sponges.