baber/WOPTO huggingface dataset:
Patent GB-522862-A (GB)
Title: Improvements in propeller shaft protector
IPC: B63H5/16
Filed: 1939-01-12
Abstract: 522,862. Screw propellers. HARRIS, T. Jan. 12, 1939, No. 1041. Convention date, April 6, 1938. [Class 114] The bracket 17 supporting a propeller shaft 16 is extended to form a spaced collar 27 which has a saw-like edge 28 adjacent the propeller boss 23. The collar is perforated at 29 to admit water to the bearing surfaces. In a modification, the collar is separate from the bracket and adjustably supported thereon. The end of the bearing may have a stuffing-box.
Patent GB-449627-A (GB)
Title: Improvements in bale-tying apparatus
IPC: B65B13/34
Filed: 1935-01-12
Abstract: 449,627. Strapping bales &c. SHIRTLIFF, F., c/o Shirtliff Bros., Ltd., Letchworth, Hertfordshire. Jan. 12,1935, No. 1145. [Class 45] The ends l of a strap &c. to be fastened round a bale are passed through a slot k, Fig. 6, in a buckle i, after which the buckle is positioned in diametral slots g, Fig. 2, in a pair of ratchet wheels e mounted in the forked end a of a lever a<1> which has pawls c for rotating the ratchet wheels thus coiling the strap on to the buckle to tension the strap. Retrograde rotation of the buckle during tensioning is prevented by pawls d on the forked end b of a lever b<1>, this lever also having a guard o. A radial slot o<1> in the guard o enables the buckle to be inserted in the slots in the ratchet wheels, but after such insertion the lever b<1> is turned to a position adjacent the bale, in which position the guard o prevents withdrawal of the buckle. Axial pins n in the ratchet wheels engage abutment shoulders m on the buckle to maintain the slot k in the buckle in the axis of rotation. The guard o may have a toe-piece t so that when the lever b<1> is rotated into a position adjacent the lever a<1>, the point of contact of the toe-piece t with the bale may serve as a fulcrum to enable the levers a<1>, b<1> (moving together), to slip the apparatus from the buckle. Alternatively, a bent lever s may be pivoted on the lever a<1> so that, after tensioning, the end of the lever s may be brought into contact with the bale to serve as a fulcrum to enable the levers a<1>, b<1>, to remove the apparatus from the buckle. After tensioning, a short rod r is placed on the band l under the curved ends of the buckle to prevent loss of tension as a result of the buckle unwinding. The ratchet wheels may each have more than one diametral slot g, or they may have keyholes h to enable them to be turned by a key to align the slot g with the slot o<1> in the guard o for the insertion of the buckle.
Patent GB-523727-A (GB)
Title: Improvements in bedsteads
IPC: A61G7/02
Filed: 1939-01-13
Abstract: 523,727. Bedsteads. EVANS & CO., Ltd., J. N., EVANS, R. Y. K. N., EVANS, D. K. L. N., and EVANS, J. K. N. Jan. 13, 1939, No. 1168. [Class 52 (ii)] ] In a bedstead provided with a middle mattress section which is adapted to be lowered to receive a bedpan and subsequently raised and held in the appropriate position the' section 4 is carried by two pairs of parallel links 6, 7 from the side rail 5 of the bed. At one side the section 4 is provided with a handle 14 for manipulation purposes, the handle being provided with horizontal bars adapted to be engaged by a spring-controlled catch 17 to hold the section in the desired position.
Patent GB-1068421-A (GB)
Title: Process and apparatus for capping filter elements
IPC: B31D5/00
Filed: 1965-01-11
Abstract: In a continuous process for capping tubular filter elements, Fig. 2 (not shown) the caps 3 are fed in a series from a storage reservoir 2 to a stage 8 where a bonding agent e.g. thermosetting, themo-plastic resins and thermo-plastic binders, is ejected onto the caps from a dispenser 9.  The bonding agent is uniformly distributed on the cap and maintained flowable by heating during transit over section 23 i.e. between stage 8 and a point D, where an operator pushes a filter cylinder firmly into the pool of bonding agent.  The composites are fed over section 27, suitably heated to effect the curing of the bonding agent.  On reaching an accumulation table 30, the composite is retrieved, inverted and the remaining open end of the tube is pushed into another cap, the seal being likewise effected.  In a modification Fig. 1 (not shown), two assembly lines are provided. The rate of travel of the caps over the sections
Patent GB-708674-A (GB)
Title: A press for the making of soap tablets from waste portions of soap
Inventor: NIELD DOUGLAS
IPC: C11D13/18
Filed: 1952-01-16
Abstract: 708,674. Hand presses for making soap tablets. NIELDS PATENTS, Ltd. Jan. 15, 1953 [Jan. 16, 19521, No. 1199/52. Class 87 (2) A press for making tablets from waste pieces of soap comprises an open-ended body part 5 of -which the inner periphery near one end has an annular abutment 6, two pressure plates 7, 8 slidable in the body part 5, a screw threaded rod 9 axially disposed in holes in the plates 7, 8 and screw threaded means 10 on the rod for exerting pressure on the plates 7, 8 to consolidate the soap in the body part between the plates. With the plate 8 resting on the flange 6 of the hollow body part 5, waste soap is shredded into the body part to the required amount, the plate 7 and screw 9 are assembled and the soap shreds are consolidated into' a block by pressure exerted by the wing-nuts 10. Flexible separaters 11, of polythene or other plastic material, are put on the surfaces of the pressure plates 7, 8 to prevent the soap from sticking. to them.
Patent GB-764135-A (GB)
Title: Improvements in and relating to bearing liners
IPC: F16C33/20
Filed: 1955-01-14
Abstract: 764,135. Bearing bushes. SPRIGGS, J. D. Jan. 14, 1955 [Jan. 15, 1954], No. 1227/55. Class 12 (1). A bearing comprises a metal sleeve 10 having a grooved bore in which a synthetic resin lining 30 is moulded, the lining having a thickness of about 0.005 inches between the grooves. The ends of the liner have extensions 16, 17 which form dust protectors. Circumferential and longitudinal grooves 11, 12 are shown in Fig. 2, and in a modification the grooves comprise helices 50, 51, Fig. 5, of opposite hand. The resin may be nylon, polythene or polytetrafluoroethylene.
Patent GB-260452-A (GB)
Title: Improved process for coating cast iron with lead
IPC: C23C2/10
Filed: 1926-01-15
Abstract: 260,452. Spengler, O. Jan. 15, 1926. Coating; coating metals by dipping.-Cast iron before coating with lead is treated with a salt of a metal, such as copper, which is precipitated by iron, and lead is then applied to the coated surface by any known method. The iron is preferably painted with a solution of a copper salt or with a solution containing a mixture of salts comprising a zinc halide, such as zinc chloride, or tin salt and a copper salt such as the sulphate. The painted surface is then heated and lead melted thereon in the usual manner. Specifications 23716/11 and 230,117 are referred to.
Patent GB-1253411-A (GB)
Title: Regulating devices for hydraulic power lifts of tractors
IPC: A01B63/112
Filed: 1969-01-09
Abstract: 1,253,411. Tractor power lift. KLOCKNERHUMBOLDT-DEUTZ A.G. 9 Jan., 1969 [9 Jan., 1968], No. 1299/69. Heading A1P. A regulating device for the hydraulic power lift of a tractor comprises a ganging spring 24 for sensing the working resistance of a semimounted plough, a valve spool 28 being moved by the linkage 27 via an intermediate lever 18 pivoted to the cylinder 5 at 17 and to an increment lever 20 at 19. Under an increase of working resistance the increment lever 20 is turned anti-clockwise which moves the spool valve towards the "lift" position whereupon the pump 29 delivers hydraulic fluid under pressure through the non-return valve 35 to the ram 34. The lift shaft 1 and lift arms 2 are rotated anticlockwise which, through the cam 3, moves the piston 6 to the right-hand side whereupon hydraulic fluid is forced through the conduit 14 and throttle 15 from one side of the cylinder to the other. Under a sudden increase in working resistance. The valve 28 is moved into the "lift" position and the resulting fast operation of the lift arms moves the piston 6 quickly and as hydraulic fluid cannot flow sufficiently quickly through the throttle 15 the cylinder 5 moves, tensioning the compression spring 11. The pivot 17 is thus moved to the right and via the levers 18, 26 and the linkage 27 the valve spool is thrown into "neutral". The spring 11 then forces the cylinder back to its original position. If during this time the working resistance has not been reduced the pivot 19 will be shifted towards the left hand side (compared with Fig. 1) and thus the return motion of the pivot 17, i.e. the anticlockwise rotation of the lever 18 causes the valve spool to be moved to the "lift" position. The process described above thus repeats itself until the working resistance reaches the desired value. Under a sudden reduction of working resistance the valve spool is moved to the "lower" position and the corresponding but reverse process to that described above occurs, i.e. the lift shaft 1 and lift arm 2 is intermittently lowered until the required working resistance is regained. Under gradual changes in working resistance the pump supplies fluid to the ram slowly and the piston 6 moves slowly in the cylinder 5 which remains in the position shown in Fig. 1 as fluid can flow sufficiently quickly through the throttle 15. The motion of the lift arms 2 is thus continuous.
Patent GB-157431-A (GB)
Title: Improvements in the construction of walls for buildings
IPC: E04B2/64
Filed: 1921-01-10
Abstract: 157,431. H÷fler, R., and Renyi, S. May 6, 1914, [Convention date]. Materials, special, for slabs; paper slabs; slabs.-Slabs X for buildings comprise a solid or hollow core 1, Fig. 4, of paper, pasteboard, reeds, &c. and side plates 2 also of similar material projecting beyond the core.
Patent GB-1213613-A (GB)
Title: Improvements in threaders for threading wool or other similar fleecy yarn onto wool needles
Inventor: CRAGG JACK
IPC: D05B87/00
Filed: 1969-01-09
Abstract: 1,213,613. Sewing. J. CRAGG. 9 Jan., 1969, No. 1360/69. Heading DIG. A needle threader for wool or other fleecy yarns comprises, at the right hand end of a body 11, a pair of jaws 12 with lips 12a to receive and guide a needle 1 for the eye thereof to be engaged by a member 4 having a notch 9 at its end for receiving a loop of yam to be passed through the eye. The left hand end of the body 11 comprises a threader for cotton or other smooth yarn which forms the subjectmatter of Specification 1,213,614.
Patent GB-175254-A (GB)
Title: Improvements in or relating to gas filled electric glow discharge tubes
IPC: H01J17/06
Filed: 1922-01-16
Abstract: 175,254. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Feb. 10, 1921, [Convention date]. Vacuum tubes.-One or more chlorates, nitrates, permanganates or halogenides are introduced into a gas-containing tube which, during manufacture, or afterwards, affects the surface of the cathode so that the voltage necessary to produce a discharge is reduced. The substance may be introduced into the tube from a container which is sealed off when the manufacture of the tube is completed. Potassium nitrate, chlorate or permanganate, barium peroxide, or calcium chloride may be used for this purpose. With a tube containing neon or other rare gas, or mixture thereof, and two iron electrodes, the introduction of a small quantity of potassium nitrate reduces the discharge-voltage from 200 volts to less than 100 volts. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of calcium phosphide. This subject-matter does not appear in the Specification as accepted.
Patent GB-918949-A (GB)
Title: Improvements in or relating to gas detectors
IPC: G01N1/22
Filed: 1960-01-14
Abstract: A gas detector comprises an evacuated transparent envelope, with a breakable end, containing a chemical, capable of a colour change when in contact with a specific gas, preferably dispersed on the surface of granules or pellets of an inert material. Oxygen is detected by the use of manganous oxide dispersed on silica gel (chromatographic grade, 50-100 mesh previously dried at 430 DEG C.).  Manganous carbonate is first prepared by mixing solutions of manganous chloride and sodium bicarbonate, filtering, washing successively with water 96%, alcohol, pentane and drying. The resulting manganese carbonate is mixed with 8 parts by weight of silica gel in an atmosphere of carbon dioxide.  The granules, still in an atmosphere of carbon dioxide, are transferred to glass tubes.  The tubes are heated in vacuo at 430 DEG C. for 45 min., to give manganous oxides, and sealed.  Carbon dioxide estimation is effected by using a similar evacuated tube containing rosaniline hydrochloride (dispersed in acid washed sand) which has been decolourized with hydrazine hydrate. This reagent rapidly changes from white to red when contacted with carbon dioxide.
Patent GB-880599-A (GB)
Title: Improvements in or relating to organosilicon compounds
IPC: C08G77/00
Filed: 1958-01-15
Abstract: 880,599. Proofing against water and oils; impregnating for electrical insulation. MIDLAND SILICONES Ltd. Jan. 15, 1958 [March 7, 1957], No. 1465/58. Class 140. [Also in Group IV (a)] Materials such as masonry, textiles, ceramics, paper and wood are rendered repellent to water and to hydrocarbons, or given improved dielectric properties, by treating with fluoroalkyl chlorosilanes of the general formula below, the silanes reacting with atmospheric or absorbed moisture to produce siloxanes. The general formula is where Y is a perfluoralkyl radical of 1 to 3 carbon atoms, R is a monovalent hydrocarbon or halogenated hydrocarbon radical or hydrogen, n is 2, 3 or 4, a is 1, 2 or 3, m is 0, 1 or 2 and m+a is not more than 3 (see Group IV (a)).
Patent GB-561639-A (GB)
Title: An improved dovetail or anti-rattle device for doors
IPC: E05F7/04
Filed: 1943-01-29
Abstract: 561,639. Door stops. PRESSED STEEL CO., Ltd., and SPEED, E. Jan. 29, 1943, No. 1510. [Class 65 (i)] In a dovetail door stop, the male member 11 or the female member 21, or both, are capable of a slight movement against spring pressure at least in a direction outwardly of the shut face of the door or post. The springs 23 are arranged in sockets in the female members 21, and other springs 49 may be arranged at right angles to these, and also at the outer ends of 21.
Patent GB-157820-A (GB)
Title: Improvements in or relating to means for rendering buildings and other structures impervious to water and oil
IPC: B05D5/00
Filed: 1921-01-10
Abstract: 157,820. Frank, P. A. R. Jan. 11, 1918, [Convention datel. Continuous flooring and walls, waterproofing. Buildings, floors, tanks, roads, and paths are rendered impervious to water and oil by applying to the concrete, brick, or other surface an asphaltic or bituminous layer, then a layer of glue or glued paper or millboard or a mixture of glue and paper pulp, and finally one or more layers of asphalt or bitumen. The glue may be rendered insoluble by known agents, and a protective covering of concrete may be applied to the last asphalt layer.
Patent GB-916968-A (GB)
Title: Improvements in or relating to aircraft reaction-propulsion units and installations
Inventor: COLLEY ROWAN HERBERT
IPC: F02K1/60
Filed: 1959-01-15
Abstract: 916,968. Jet propulsion thrust reversal. ROLLS-ROYCE Ltd. Jan. 11, 1960 [Jan. 15, 1959], No. 1581/59. Addition to 745,649. Class 4. In the jet propulsion unit or installation of the parent Specification the jet pipe is cylindrical and the valve member has end portions whereof the radius of curvature (in a plane passing through the swinging axis of the valve member) increases progressively towards that axis. Fig. 2 is a perspective view of the valve, and Fig. 3 a section normal to the jet pipe axis when the valve is in its normal position. The part 26a, between radii R 1 , is of constant curvature, and parts 26b are of curvature decreasing towards the end fittings 28, as exemplified by radius r, preferably so that the product of r and a is constant, where a is the dimension of the valve member at any station, measured parallel to the jet pipe axis. This is stated to produce a valve member better able to withstand the stresses arising during thrust reversal. The external surface of the member is provided with top hat section ribs 27 having hollow interiors, each communicating with the space inside the valve through holes 30, and with the space outside the valve through a hole 31. The resultant flow of hot gasses promotes even heating of the ribs and valve member. Specifications 849,850 and. 882,424 also are referred to.
Patent GB-214002-A (GB)
Title: An improved motor head light
IPC: F21V11/16
Filed: 1923-01-18
Abstract: 214,002. Coulson, W. T. Jan. 18, 1923. Motor-vehicle head lamps; lantern obturators. -A motor-vehicle head lamp comprises a substantially ellipsoidal reflector r which is elliptical in transverse section and has at its first focus an electric lamp bulb b and at its second focus a semi-opaque screen p which is adjustable in both vertical and substantially axial directions and which is also in the focal plane of an eccentrically cut lens l supported in a ring c of ground glass or other semi-opaque material. The screen p is carried on a segment k of ground glass or other semi-opaque material, and has on its upper edge a semi-circular opening i covered by a piece of opal glass o. The screen is adjusted vertically by a screw engaging in a vertically threaded boss a and substantially axially by a screw engaging in a horizontal hole h. Specification 174,782 is referred to.
Patent GB-870584-A (GB)
Title: New peroxycarbonate derivatives and their use as polymerization catalysts
Inventor: PAJACZKOWSKI ANDRZEJ
IPC: C08F4/34
Filed: 1959-01-16
Abstract: Polymers are prepared by subjecting compounds containing the group >C=CH2 to polymerization in the presence of a catalytic amount of an acyl peroxy carbonate ester of the general formula RCO,O,O,O,CO,OR1 wherein R and R1 represent hydrocarbon or substituted hydrocarbon radicals, specified substituents being halogen atoms e.g. chlorine and hydrocarbon radicals linked to R or R1 via ethereal oxygen. Ethylene, styrene, methyl methacrylate, vinyl chloride, vinyl acetate and other vinyl esters may be polymerized by the above method. Chain-transfer agents such as hydrogen, ethane, propane, cyclohexane, other saturated hydrocarbons and chlorinated aliphatic hydrocarbons e.g. carbon tetrachloride may be used with the ethylene. Anti-oxidants and other polymersoluble additives and inert reaction media such as benzene or petroleum ether may be present.  Typical of named catalysts are lauroyl peroxymethyl carbonate, benzoyl peroxyisopropyl carbonate and lauroyl peroxy 3 : 5 : 5-trimethyl hexyl carbonate.ALSO:The invention comprises acyl peroxycarbonate esters of the general formula RCO.O.O. CO.OR1 wherein R and R1 represent hydrocarbon or substituted hydrocarbon radicals, specified substituents being halogen atoms and hydrocarbon groups linked through ether oxygen.  They may be prepared by reacting a per-carboxylic acid RCO.O.OH with a haloformate Hal-COOR1, preferably in the presence of a base such as sodium hydroxide or pyridine. Specified reactants are perlauric, perbenzoic, per-caproic, per-2-ethyl hexanoic and per-pivalic acids and the methyl, ethyl, isopropyl, t-butyl, amyl, cyclohexyl and chloralkyl chloroformates, a number of which are used in examples.  The acyl peroxycarbonates are polymerisation catalysts (see Group IV(a)).
Patent GB-749408-A (GB)
Title: Manufacture of carbon tetrachloride and tetrachlorethylene
IPC: C07C21/12
Filed: 1954-01-20
Abstract: A mixture of carbon tetrachloride and tetrachlorethylene are produced in the predetermined proportions of y and ky by the reaction of <FORM:0749408/IV(a)/1> mols. of chlorine and (3k+2)y mols. of tetrachloroethylene at 600 DEG -800 DEG  C. in the absence of a catalyst, followed by heating at 200 DEG -220 DEG  C. in presence of a catalyst when hexachloroethane is formed from unreacted chlorine and tetrachloroethylene, followed by heating the mixture with <FORM:0749408/IV(a)/2> mols. of acetylene to 220 DEG -250 DEG  C. in presence of a catalyst to give a mixture of carbon tetrachloride, tetrachloroethylene and hydrochloric acid, separated by fractionation, the tetrachloroethylene being re-cycled.  A drawing accompanying the Specification shows a pilot plant suitable for the reaction, when the whole of the tetrachlorethane is re-cycled.  Thus chlorine is caused to react with acetylene without actually coming into contact in great quantities, if k is nearly zero, and if the whole of the tetrachlorethylene is re-cycled, the products consist of carbon tetrachloride with HCl as by-product.  Other halogenated ethylenes may replace the acetylene, in equivalent quantities. Examples in which the process is used to produce only carbon tetrachloride, only tetrachorethane, or a mixture of the two, are given.
Patent GB-250691-A (GB)
Title: Improvements in or relating to grease-guns
IPC: F16N3/12
Filed: 1925-01-20
Abstract: 250,691. Bliss, J. Jan. 20, 1925. Screw-actuated single-acting suction-valveless piston pumps; assembling parts; suction reservoirs. - A grease pump A extends completely through and is detachably secured to a, container E in which grease is packed for storage and transit and has an inlet port K within the container and a delivery nozzle C outside it. The apertures E<2>, E<4> are normally closed by soldered sheet-tin discs. The pump is held by a flange A<1> and a sleeve H which screws on to the barrel. In securing the pump the lid E<3> may be removed and a follower J introduced. The plunger F is reciprocated by hand, and additional pressure may be obtained by a screw-threaded portion F<1> engaging a nut G screwed to the sleeve H. Specification 26688/98 is referred to.
Patent GB-1333292-A (GB)
Title: Processing silver halide photographic materials
IPC: G03C5/38
Filed: 1971-01-14
Abstract: 1333292 Photographic silver halide solvents EASTMAN KODAK CO 14 Jan 1971 [15 Jan 1970] 1833/71 Heading G2C Photographic fixer solutions, developer-fixer solutions and silver salt diffusion transfer processing solutions contain as silver salt solvent a compound of the formula:- where each of R<SP>1</SP> and R<SP>2</SP> is H, substituted or unsubstituted alkyl, aryl or a heterocyclic group, R<SP>3</SP> is as defined for R<SP>1</SP> or is the group -N = CR<SP>4</SP> R<SP>5</SP> where each of R<SP>4</SP> and R<SP>5</SP> is a group as defined for R', at least one of the groups R<SP>1</SP> to R<SP>5</SP> containing an -OH group. Compounds especially preferred are those where R 1  is HOCH 2 (CHOH) x  where x is 1, 2, 3 or 4) and R 2  is H, such as the thiosemicarbazones of D-galactose, D-glucose and D-mannose, and the corresponding thiocarbohydrazones, but other compounds specified include the thiosemicarbazones of benzaldehyde, propionaldehyde acetone and glyoxal. The processing solutions may be applied from processing webs. The silver salt diffusion processing solutions may be contained in a pool or may be imbibed in the reception layer of the receptor sheet. The processing solution may contain thickening agents. The silver salt diffusion material may have a separate receptor sheet or maybe ofthe integral type and may have a wash-off emulsion layer.
Patent GB-395618-A (GB)
Title: Improvements in driving gear for beam conveyors
IPC: B65G25/00
Filed: 1933-01-20
Abstract: 395,618. Step-by-step conveyers. GIBBONS BROS., Ltd. and JACKSON, H. W., Dibdale Works, Dudley, Worcestershire. Jan. 20, 1933, No. 1881. [Class 78 (i).] In a beam conveyer of the kind including two groups of beams which are reciprocated in an endwise direction, the load being supported alternately on each set during the periods of forward movement of the set, the driving gear comprises a pair of wheels 5, Fig. 5, each of which is provided with a radial slot 7 in which slides a block 8 carrying a crank pin 10. One end of each crank pin projects into a guide groove 12, Fig. 4, in a stationary member 13, and the opposite end extends between a pair of jaws extending downwardly from the underside of one of the groups of beams. The vertical movement of one group is produced by the mechanism described in Specification 395,617.