baber/WOPTO huggingface dataset:
Patent GB-260076-A (GB)
Title: Improvements in lubricators for pneumatic tools
IPC: F16N7/32
Filed: 1925-08-24
Abstract: 260,076. Vacuum Oil Co., Ltd., (Vacuum Oil Co.). Aug. 24, 1925. Force-feed lubricating; lubricant conveyed by fluid; indicating.-Lubricant is supplied into the air line or into the cylinder of a pneumatic drill, hammer, riveter or like tool by a differential piston subjected on one side to the pressure of air from the air line and presented on the other side in part to a body of lubricant and in part to atmospheric pressure. As shown in Fig. 2, a cylinder 4 connected to the air line by aT-piece 3 has a head 5 having a cylindrical projection 7 extending into the cylinder to form an annular chamber 8, communicating with the atmosphere by openings 19. The piston 12 has a skirt 13 operating in the chamber 8, the outer face of the piston being subjected to the pressure of air admitted from the air line through a passage 20. The space 14 within the piston is filled with lubricant through a passage 24 and an opening closed by a plug 23. Lubricant is discharged through passages 24, 25, 26 and an atomizing tube 27 into the air line, under the control of a needle valve 28. As the piston 12 reaches the end of its travel, air escapes through ports 22, indicating that the lubricator is empty by the whistling sound produced and by the consequent retardation of the tool. In a modification, the lubricant is discharged from the chamber 14 through passages in the piston head communicating with an atomizing tube slidable in the end of the cylinder. In the form shown in Figs. 5, 6. the handle 4<b> of the tool forms the lubricator cylinder. Air from the tool intake 33 is led to the front face of the piston 12<b> through a tube 32 and a passage 20<b> in one of the supporting arms 31, while lubricant is discharged through a passage in the projection 7<b> of the cylinder head 5<b> and through passages 25<b>, 26<b> in the cylinder and the other supporting arm 29 to the tool cylinder 30, the discharge being controlled by a needle valve 28<b>. In the form shown in Fig. 7, the piston 12<c> has a reduced extension 13<c> projecting through an opening 8<c> in the cylinder end surrounded by a sleeve 32, so as to be exposed to atmospheric pressure. Air passes from the air line to the front face of the piston through a passage 20<c>, and lubricant is discharged from the chamber 14<c> to the atomizing tube 27<c> through a passage 26<c> under the control of a valve 24<c>. The chamber 14<c> is filled through a valved plug 23<c> and passages 35, 36 in the extension 13<c>. When the plug 23<c> projects beyond the sleeve 32 it indicates that the chamber 14<c> is empty. In a further modification, the cylinder has two unequal bores in which slide corresponding pistons which are connected together. The larger piston is subjected to the air line pressure, and the smaller piston is presented to the body of lubricant, while the space between the pistons communicates with the atmosphere through a port in the cylinder which is so situated that the larger piston passes beyond it when it reaches the end of its travel.
Patent GB-617924-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/56
Filed: 1946-07-16
Abstract: 617,924. Fusible cut-outs. SCHOLES & CO., Ltd., G. H., SCHOLES, G. H., and PEARCE, F..J..July 16, 1946, No. 21216. [Class 38 (i)] A cartridge fuse is held in position on contacts in the bridge member of a two-part carrier by springs provided in the cover of the carrier. In Fig. 2 the carrier comprises an open topped box-like part 6 carrying the contacts 7 and a cover 8. The shanks of the contacts 7 extend through holes in the base of the part 6 and the heads of the contacts form seats for the conducting end caps 11 of the cartridge type fuse 12. Springs 15, located in recesses 19 force the fuse into engagement with the contacts 7 when the cover is in position. The cover is secured by means of an inverted U-shaped clip 16 located in a transverse groove 18 formed in the cover. Alternatively the cover may be hinged to the part 6.
Patent GB-1454314-A (GB)
Title: Tarpaulins
IPC: B32B3/10
Filed: 1974-05-14
Abstract: 1454314 Laminates CLARO PLASTICS Ltd 13 May 1975 14 [May 1974] 21238/74 Heading B5N  A tarpaulin comprises a sheet of flexible thermoplastics material, e.g. low density polyethylene or polyvinyl chloride, integrally reinforced with strips of webbing, which are elongate bands of material having a high width to thickness ratio, which extend in an open mesh over substantially the whole of the sheet and are bonded to the sheet and to one another, each webbing strip comprising a plurality of thermoplastics, metallic or inorganic yarns enclosed in a thermoplastics casing. The tarpaulin may be produced by laying strips of webbing across a sheet of flexible thermoplastics material, suitably by placing the sheet over the strips placed in grooves in a flat table to form the required mesh pattern, heating the sheet and webbing, e.g. using a plate in the form of a matrix of aluminium bars which corresponds to the mesh pattern of the strips and heated to above 160‹ C., removing the source of heat and before the temperature of the sheet has dropped by more than 50‹ C., applying pressure exceeding 0À1 psi to bond the webbing to the sheet, e.g. using a plate in the form of a matrix of aluminium bars corresponding to the mesh pattern of the strips, the means for applying pressure being at a temperature not greater than 50‹ C. The webbing strips may comprise bundles of reinforcing yarns, e.g. of polyamide, polyester or cellulose material, or reinforcing yarns interwoven into an open scrim, enclosed in a casing of low density polyethylene. The webbing strips may extend in two directions at right angles to one another parallel to the edges of the sheet. Points of attachment, e.g. lugs or grommets may be provided at spaced locations in the webbing strips. The tarpaulin may comprise two sheets of flexible thermoplastics material with webbing strips sandwiched between, and may include insulating materials between them, and may be fused together around a network of filaments additional to the webbing strips.
Patent GB-722606-A (GB)
Title: Improvements in devices for cast concrete casing construction
Inventor: SHIPWRIGHT WILLIAM GEORGE
IPC: E04G17/14
Filed: 1951-09-10
Abstract: 722,606. Shuttering for casting concrete in situ. ECON SHUTTERING, Ltd. Sept. 10, 1952 [Sept. 10, 1951], No. 21278/51. Class 20(2). Shuttering for casting walls, arches, barrel vaulting or conduits is supported from scaffold poles by means of clamps adjustably secured thereon and connecting-means between each clamp and a support bar carrying the shuttering provides pivotal adjustment thereof with the clamp and support bar in two different planes. In one form for wall shuttering the shuttering 1, Fig. 1, has hooks 2 engaged by a support bar 3 secured by a bolt 14 to one arm of an anglebracket 10 permitting adjustment about a vertical axis, the other arm of the bracket 10 being connected by an arm 8 to a two-part clamp 5 on a scaffold pole 4 by bolts 9, 11 which permit angular adjustment of the arm 8 with respect to the clamp about a horizontal axis. In another form the arm 8 may be omitted and the bracket arm 10 connected directly to the clamp 5. The arrangement shown in Fig. 1 may also be used for supporting shuttering plates horizontally disposed. For curved shuttering, the connecting means between the clamps and the support-bars 2b, Fig. 4, may comprise two sets of arms 8, 8a which are bolted in slots in an intermediate plate 12, the arms 8a being bolted to an angle-bracket 10 in turn bolted to the support-bars 2b. A central framing of scaffold poles 4 is built up to the shape of the arch and the plates 12 connected end to end to a similar shape. External shuttering plates can be supported in similar manner from an external supporting framework.
Patent GB-659677-A (GB)
Title: Automatic spring lubricator
IPC: F16N7/12
Filed: 1949-08-17
Abstract: 659,677. Lubricating. DUROSE, H. V. Aug. 17, 1949, Nos. 21362 and 28017. [Class 12 (iii)] A lubricator for a vehicle leaf - spring 14 comprises an oil container 1 adapted to be secured upon the leaves of the spring by a resilient member passing around the spring and holding felt or oil-absorbent material 9 against the edges of the spring leaves. As shown in Figs. 1, 3, the resilient member comprises two spiral springs, each in the form of an endless loop, and an intermediate connecting-plate 16 having integral open-ended sleeves 17 through which the springs pass. At one side, a spring is permanently attached to the oil chamber 1 by a sleeve 11, and at the other side, a spring engages a hook 12 on the chamber 1. The felt pad 9 is initially an inverted U-shape, and is secured to the container 1 by side flanges 7. A hole 10 is provided in the top surface of the pad 9, and on displacement of a ball valve 6 in the base of the container 1 by movement of the vehicle, oil from the container is fed into the space 10 and thence to the side felt layers 9. The oil chamber 1 is provided with a filter gauze 18, an air vent 19 loosely closed by a rivet 20, and filling apertures 21 closed by projections 22 on spring arms 23. In a modification shown in Figs. 5, 7, the resilient strap comprises a pair of coiled springs 25 connected together end-to-end by an intermediate metal link.26 which carries a rubber suction-cup 29 which bears against the bottom of the spring 14. Each felt side layer 9 is of tapering form and has fitted over it a channelsectioned rubber cover 30. Ribs 31 on the covers 30 are provided with shallow grooves 32 into which the springs 25 fit. One of the Provisional Specifications states that the ball valve 6 may be replaced by a dumb-bell valve, or a wick device, or the container may be connected to a dash-pot lubricating system.
Patent GB-584538-A (GB)
Title: Improvements in automatically opening separator bowls
IPC: B04B1/18
Filed: 1944-11-01
Abstract: 584,538. Centrifugal separators. AKTIEBOLAGET SUPERIOR. Nov. 1, 1944, No. 21379. Convention date, April 22, 1943. [Class 23] A separator of the rotary bowl type has means for periodically discharging separated sludge 11, comprising a slide 5 subjected on its underside to constant pressure from a separate fluid, and on its upper side to the pressure of the liquid mixture being separated plus the weight of the sludge which gradually builds up as shown by the dotted lines. When the upper pressure exceeds the lower, the slide 5 is forced downwards, packing 7 leaving its seat, and sludge is discharged through one or more ports 21. Loss of liquid, from the separating chamber, is prevented as the sudden release of pressure above the slide 5, causes the latter to move upwards and seal off ports 2<SP>1</SP>. A screen 12 divides the separating chamber into two parts, having plates 8, 9 leading the lighter liquid to an outlet 19. Vanes 21 are provided in the liquid inlet 17. A chamber 20 is kept filled with liquid, from supply pipes 22, to the level A, which normally, is placed at a radius less than that of the level B, corresponding to the radius of the outlet 19, taken up by the inner surface of the rotating liquid being separated, to give a greater pressure under the slide 5. The radius of A may be changed by insertion of a washer 14 gaving a different internal diameter. Vanes 26<SP>1</SP> are provided above the washer 14. The inside of the chambers 20, 27, communicate with the atmosphere by way of passages 25, 28<SP>1</SP>, 30, 31, 32. Leakage liquid passing the packing 7 is led away through a drain 23<SP>1</SP>. Holes 13 are provided to allow a passage upwards of liquid, after the annular area between the screen 12 and the packing 7 is sealed by sludge, but these holes are afterwards sealed up, the consequential pressure on the slide 5 causing it to open. The packing 7 may be conical in cross-section.
Patent GB-1270804-A (GB)
Title: Manufacture of laminated steel products
Inventor: GREENWOOD ALAN GEORGE
IPC: H01F41/02
Filed: 1968-05-06
Abstract: 1,270,804. Coated steel strip. BRITISH STEEL CORP. and DR. BECK & CO. (ENGLAND) Ltd. 17 April, 1969 [6 May, 1968], No. 21403/68. Heading B2E. [Also in Division B5] Steel strip is coated with a solvented curable resin system which is then partially cured by heating to a dry, non-tacky state. The coated strip may be used for making laminates, being fully cured during assembly (see Division B5). The resin may be an epoxy resin with an amine hardener. Resin may be applied by roller and the solvent may be flashed off at 240-300‹C while the strip is travelling. The steel may be electrical steel.
Patent GB-223017-A (GB)
Title: An improved apparatus for sun-drying and curing vegetable and other material
IPC: F26B3/28
Filed: 1923-08-24
Abstract: 223,017. M³ller, B. Aug. 24, 1923. Solar radiation, drying by.-Apparatus for sundrying fruits, vegetables &c. comprises superposed metal frames a, having ventilation apertures b formed with projecting rims, and angleirons f for supporting removable trays carrying the material. The uppermost frame is surmounted by a hood.
Patent GB-417009-A (GB)
Title: Improvements in or relating to oil burning stoves
IPC: F24C15/32
Filed: 1933-07-31
Abstract: 417,009. Cooking - stoves. TILBURN, C. L., 304, Sassoon House, Nanking Road, Shanghai, China. July 31, 1933, No. 21518. [Class 126.] In an oil or gas heated cooking - stove having a plurality of ovens 3, 3<a>, 3b, 4, 4<a>, 4b, the flues surrounding the ovens are traversed by the hot gases from combustion chambers 2, 2<a> which are provided at opposite ends with burners 11 delivering on to a central perforated partition 10. The ovens are divided, by plates 13, into two groups, 3<a> and 4<a> being heated from the combustion chamber 2 and 3, 3b, 4, 4<b> from the combustion chamber 2<a>; dampers 17 are provided to enable ovens 3b, 4b to be cut out if required. The combustion chambers may be fired by one or both burners, the perforated partition 10 allowing, in the former case, passage of some of the gases to heat the oven or ovens on the opposite side of the stove. The gases pass to the oven top flues 7, 7<a> through openings 8 and, after traversing the side and bottom flues 6, 6<a>, 14, 14<a>, enter passages 16, 16<a> which are divided by vertical firebrick partitions 12, 12<a> to provide four separate outlet flues each delivering into one compartment of a partitioned chimney 9. The compartments of the latter are fitted with separate dampers the position of which is shown by indicators 19 on the exterior of the chimney. An horizontal baffle 28 is arranged above each of the burners 11 to direct the flames on to the partitions 10, while air-supply passages 26, having damper-controlled inlets, are formed in the bases of the combustion chambers 2, 2<a>.
Patent GB-735056-A (GB)
Title: Improvements in or relating to a method of and apparatus for making turbine or compressor blades
Inventor: BOON ERNEST EDWIN
IPC: B23C3/18
Filed: 1952-08-28
Abstract: 735,056. Turbine and compressor blades. ROLLS-ROYCE, Ltd. Aug. 13, 1953 [Aug. 28, 1952; July 2, 1953], Nos. 21696/52 and 18329/53. Drawings to Specification. Class 110 (3). [Also in Group XXII] Turbine or compressor blades are made from lengths of strip material of uniform aerodynamic cross-section, the camber and twist of the blade being varied along the length. Specification 18330/53 is referred to.
Patent GB-998770-A (GB)
Title: Method of producing bulky or crimped yarn
IPC: D02G1/02
Filed: 1962-06-05
Abstract: A high stretch/bulked yarn is produced by associating in a single bundle two or more synthetic, thermoplastic e.g. polyamide, polyethylene terephthalate, polyvinylidene chloride, polypropylene, continuous monofilament or multifilament yarns already having a twist in the same direction of 300-800 turns per metre, twisting the bundle by more than 800 turns per metre e.g. 2,800 turns or sufficient to produce a double layer of turns in at least part of the bundle, in the same direction as that in which p  the component yarns are already twisted, heat-setting the twist in the bundle and untwisting it to separate the yarns.  A separated S-twisted yarn may be combined with a separated Z-twisted yarn to form an undistorted bulky yarn. The initial yarns may be similar or different as regards amount of twist, denier, and/or chemical or physical structure.
Patent GB-531572-A (GB)
Title: Improvements in or relating to inking apparatus for printing machines
IPC: B41F31/06
Filed: 1939-07-26
Abstract: 531,572. Inking apparatus. TIMSON, E. A. July 26, 1939, No. 21729. [Class 100 (ii)] In an inking apparatus of the kind in which an inking roller is partially immersed in an ink trough one or more conduits are provided in the trough beneath the roller to allow ink which tends to pile up on the side of the roller which moves in an upward direction. to return to the other side of the roller without passing through the spaces between the ends of the roller and the ends of the trough. In one form, Fig. 1, a false bottom 3 is provided in the trough, the space s between the bottom 3 and the bottom 1a of the trough forming a return conduit for the ink. In another form, ports in the bottom of the trough are connected by pipes and in a further form, the bottom of the trough is provided with transverse grooves.
Patent GB-850914-A (GB)
Title: Jet fuel compositions
IPC: C10L1/14
Filed: 1959-06-25
Abstract: A jet fuel contains 1 to 10 lbs. per 1000 barrels of an N,N1-disalicylidene aliphatic polyamine and 5 to 50 lbs. per 1000 barrels of a salt of (1) a C6 to C24 monoamine which is (a) a tertiary alkyl primary amine, (b) a secondary amine whose two organic substituents are monovalent aliphatic or cycloaliphatic hydrocarbon radicals, or (c) a tertiary amine whose three organic substituents are monovalent aliphatic or cycloaliphatic hydrocarbon radicals, and (2) mixed mono- and dialkyl phosphates whose alkyl groups contain 8 to 18 carbon atoms.  In examples jet fuels contain N,N1-disalicylidene-1,2-propane diamine, salts of mixed 1:1 mono- and di-oxooctyl phosphate wherein the amine is 1,1,3,3-tetramethylbutylamine, mixed tertiary alkyl amines having 18 to 21 carbon atoms and 12 to 14 carbon atoms, di-2-ethylhexylamine, N-(octenyl)-cyclohexylamine, tributylamine, N-diethylcyclohexylamine, triisooctylamine and tertiary nonylamine, the di-2-ethylhexylamine salt of mixed mono- and di-C8-C16 n-alkyl phosphate, and the diisopropylamine salt of mixed mono- and di-oxotridecyl phosphate. Specification 523,451 is referred to.
Patent GB-502780-A (GB)
Title: Process for the production of porous light weight stone products
IPC: C04B22/04
Filed: 1938-07-23
Abstract: 502,780. Porous artificial stone. EKLUND, K. I. A. July 23, 1938, No. 21875. [Class 70] An alloy of aluminium with an alkali-soluble metal is used as gas-generating agent in the manufacture of light-weight stone. The alloy is added to a mortar comprising a calcareous and a siliceous ingredient with water and a small amount of a plasticizing agent which reduces the amount of water required. The mix is allowed to expand at room temperature, and is then steam cured. Suitable aluminium alloys are those with tin, antimony, zinc and lead. The calcareous material may be lime, basic slag, or a cement. The siliceous material may be sand or a clay. An aggregate may be added. Suitable plasticizers are sugar, waterglass, borax, alkali, phosphates, soaps, glycerine, gelatine, organic bases, sulphonic acids, and alkali-soluble oxides and salts of amphoteric metals, e.g. lead, tin, zinc, and antimony. Specification 480,681 is referred to.
Patent GB-1368414-A (GB)
Title: 3-phenyl 1-4,5,6-trichloropyridazine and a process for prepa ration thereof
IPC: A01N43/58
Filed: 1973-05-08
Abstract: 1368414 3 - Phenyl - 4,5,6 - trichloropyridazine CHEMIE LINZ AG 8 May 1973 [19 June 1972] 22000/73 Heading C2C The novel compound 3 - phenyl - 4,5,6- trichloropyridazine is prepared by reacting 3- phenyl-pyridazone-6 with PCl 5  and Cl 2  in the presence of POCl 3  at 40-100‹ C. The PCl 5  is preferably formed in situ from phosphorus and chlorine.
Patent GB-964125-A (GB)
Title: Improvements in carrying cots
Inventor: SMITH FREDERICK THOMAS
IPC: A47D13/02
Filed: 1962-06-07
Abstract: 964,125. Baby carrying cots. M.S.P. (LUXIPRODUCTS) Ltd. June 4, 1963 [June 7, 1962], No. 22004/62. Heading A5X. The upper edges of the end boards a of a carrying cot are inserted under triangular corner pieces b<SP>1</SP> on the end of the cot. They may be additionally retained by a flap b attached to the end of the cot and folded over the end board a, to which it is secured by press studs a<SP>4</SP>. In the construction of cot described carrying straps D extend under the bottom and are engaged with hook-like clips d, gripping the upper edges of the sides. They are continued as loops to form carrying handles.
Patent GB-779931-A (GB)
Title: Improvements in installations including an internal combustion engine fed with fuel-air mixture by a carburettor provided with a device for facilitating starting from cold
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M1/10
Filed: 1955-07-29
Abstract: 779,931. Carburetters. SOLEX. July 29, 1955 [Aug. 2, 1954], No. 22038/55. Class 7 (3). A device for enriching the mixture for starting and running when cold is controlled by a thermosensitive element placed in a branch passage connected with the exhaust pipe of the engine and the exhaust pipe is provided between the inlet and outlet openings of the branch passage with a throttle valve controlled by the thermosensitive element so that the more the temperature of the thermosensitive element increases the more the valve is opened. As shown in Figs. 1 to 3, a throttle valve 12 is located in the exhaust pipe 6 and is operated by a bimetallic strip 8 located in a by-pass comprising a chamber 7 and orifices 10, 11. The spindle 9 of the throttle valve 12 carries an arm 14 which is linked to an arm 5 which controls the carburetter choke valve 3. When the strip 8 is heated the valves 3 and 12 are gradually opened. The cover 16 is advantageously of heat insulating material and is provided on the inside with masses 18 for instance metal masses capable of storing heat. Abutments 19 limit movement of the lever 14. In a modification, a valve plate is fixed on the spindle 9 provided with ports corresponding to the orifices 10 and 11. The plate may be provided with at least one hole of a section smaller than that of the orifice 10 or 11 this hole coming opposite the orifice when the valve 12 is partly open. A second and smaller hole may be provided in the plate to further reduce the cross-section. In another modification the outer end of the strip 8 is left free and cooperates with a projection carried by a lever on the spindle of the valve 12. Means tending to keep the valve 12 open may consist of a counterweight eccentrically carried by the spindle 9 or the valve may be shaped so that the exhaust gas stream tends to keep the valve 12 open. Either the valve may be bent or the spindle 9 may be eccentric to the valve.
Patent GB-1195702-A (GB)
Title: Hermetically Sealed Push Switch
Inventor: WOODHEAD HARRY STANLEY
IPC: H01H13/06
Filed: 1967-05-12
Abstract: 1,195,702. Retractive switches. H. S. WOODHEAD. 12 Aug., 1968 [12 May, 1967], No. 22047/67. Heading H1N. An hermetically sealed push switch has a flexible metal cover a attached at the edges to a rigid metal base c which insulatingly supports a contact d engageable by the contact b provided or supported by the cover, distortion of the cover a under an externally applied force such as finger pressure causing the normally separated contacts b, d to close. The fixed contact d is mounted on a rod or tube e centrally disposed in a glass to metal seal g in the annular steel base c. The cover is of hard springy metal sheet and is shaped to produce a click ' action. The cover may be of phosphor bronze, with silver on the inside acting as the movable contact b. The switch has an external insulating coating of plastics material.