baber/WOPTO huggingface dataset:
Patent GB-429116-A (GB)
Title: Improvements relating to yarn winding machines
IPC: B65H57/18
Filed: 1933-12-04
Abstract: 429,116. Yarn - winding machines. ARUNDEL, COULTHARD, & CO., Ltd., and HIGGINSON, J., Sovereign Works, Stockport, Cheshire. Dec. 4, 1933, No. 34008. [Class 120 (ii)] The yarn, unwinding from a flanged bobbin, is prevented from becoming trapped beneath the flange of the bobbin by being led over the edge of a disc a of greater diameter than the bobbin flange mounted upon a spindle c guided and supported upon a footstep bearing g within the fixed spindle d upon which the bobbin b is placed. The disc a may be of inverted saucer shape surrounding the flange and may have strengthening corrugations and be secured to a boss h which is secured to the spindle c by a set screw i.
Patent GB-982509-A (GB)
Title: Improvements in and relating to the production of ultra pure hydrogen
IPC: C01B3/38
Filed: 1963-08-28
Abstract: Ultra pure hydrogen is produced from a gas or gaseous mixture containing a component catalytically decomposable or convertible into hydrogen, only in part hydrogen atoms and no more than one carbon atom per gaseous molecule, by introducing the gas or gaseous mixture into a diffusion cell, heating and concurrently passing the gas over a heated catalyst surface within the cell to rapidly dissociate the gas into a mixture containing hydrogen as a separate component, passing the hydrogen through a metal hydrogen diffusion membrane or tube within the cell and continuously removing the ultra pure hydrogen as rapidly as it is formed whilst withdrawing the residual component of the original gas in a form substantially depleted of hydrogen.  The membrane or tube, which is jacketed by the catalyst mass and which may be of palladium or palladium-silver alloy, is either heated by the heat supplied to produce decomposition or dissociation or is directly heated and supplies the heat to produce decomposition or dissociation of the gas or gaseous mixture.  To prevent surface poisoning of the membrane or tube by metallic sulphides and unsaturated or olefinic compounds, the gas or gaseous mixture, which may be preheated, must be free of sulphur atoms and molecules containing more than one carbon atom.  The gas or gaseous mixture may include at least one of the gases ammonia, methane, methanol, carbon monoxide and carbon dioxide, and examples are given of hydrogen production by catalytically dissociating ammonia and steam reforming methane and methanol.  U.S.A. Specification 2,773,561 is referred to.
Patent GB-1217804-A (GB)
Title: Voltaic cells and half-cells useful therefor
IPC: H01M10/0564
Filed: 1969-07-07
Abstract: 1,217,804. Voltaic cells and half-cells. E. I. DU PONT DE NEMOURS & CO. 7 July, 1969 [15 July, 19681, No. 34094/69. Heading H1B. A half-cell comprises a lithium or Li-Al alloy anode and an electrolyte which comprises a solution of LiPF 6  in a substantially neutral, inert solvent, the electrolyte conductivity being at least 0À001 ohm<SP>-1</SP> cm.<SP>-1</SP>. Suitable solvents include N,N - dimethylformamide, N,N - dimethyl-acetamide, acetonitrile, propylene carbonate, dimethyl - sulphoxide, butyrolactone, nitro - methane, dimethylcarbonate, methyl acetate, methyl formate and diethylene glycol dimethyl ether. Voltaic cells using these half-cells are useful as primary and/or secondary batteries. Suitable cathodes comprise a reversibly reducible cathode depolarizer, e.g. an oxide, sulphide or carbonate of copper, FeS, NiS, NiF, nickel oxalate, sulphur, the ferrocyanide, oxalate, tartrate or citrate of Cu (II). The cathode may be in paste form in contact with an electrolytically conductive material, the paste comprising the particulate depolarizer, a particulate electrical conductor, e.g. C black and LiPF 6  electrolyte. Alternatively, the cathode may be a porous sheet comprising the particulate depolarizer and conductor and a polymeric filler, e.g. PTFE, and the sheet may be sintered. The anode alloy may be prepared by fusing Li and Al together or by electrolytically reducing lithium ions on an aluminium cathode.
Patent GB-900021-A (GB)
Title: Steroid compounds and their preparation
IPC: C07J5/00
Filed: 1958-10-24
Abstract: The invention comprises compounds of the general formula <FORM:0900021/IV (b)/1> wherein R represents hydrogen or fluorine atom, R1 represents a keto or hydroxy group, and R11 represents a hydrogen atom or an alkyl or acyl group, and the preparation thereof by heating a 16a ,17a -methyleneazo compound of the general formula <FORM:0900021/IV (b)/2> wherein R, R1 and R11 have the above significance. The above process may be modified in that the reactant is prepared by a process claimed in Specification 900,022.
Patent GB-1015719-A (GB)
Title: Improvements in motor-driven hammers
IPC: B25D11/12
Filed: 1964-08-21
Abstract: 1,015,719. Percussive drills. ROBERT BOSCH G.m.b.H. Aug. 21, 1964 [Aug. 22, 1963], No. 34197/64. Heading B4C. A motor-driven hammer drill comprises an impact cylinder 8 movable within a guide cylinder 11 and in which a piston 33 is slidably driven by means of a crank 40, 41 and pre-stressed operating springs 47, an air chamber 35 adapted to act as a spring for transmitting, together with the operating springs, the driving force to the impact cylinder and for retracting the cylinder by vacuum after impact, a valve member 44 actuated by the springs 47 for controlling the air to and from the chamber, and switching means 5 adapted, regardless of the actuation of the driving motor, to prevent percussion movement of the impact cylinder if the biasing force of the operating springs has been reduced due to wear caused by the frictional engagement of the operating springs with one another or with bearings between which the springs are supported. The valve member 44 is formed with a sealing surface which is normally forced into contact with an end wall 34 of the cylinder 33 by means of the operating springs 47 located between the valve member and a gudgeon pin holder 37 retained in the piston by a ring 49. In normal operation of the hammer the piston is moved forwardly by the crank 40, 41 and connecting rod 39, the air trapped in the chamber 35 after the end 34 of the piston has passed the end of an air inlet passage 36, together with compression of the springs 47 produces a force which accelerates the cylinder 8 so that its end 9 strikes an anvil 30 abutting the tool bit 6; upon return of the piston a partial vacuum is produced in the chamber 35 thereby causing the cylinder to be drawn back with the piston until air again fills the chamber via the passage 36. In order to prevent damage to the hammer when the springs 47 become worn and lose their resilience, the switching means, in the form of a star spring 53, moves the sealing surface of the valve member 44 away from the piston end wall 34 thereby preventing a vacuum being formed in the chamber 35 to return the impact cylinder; the impacts cease even though the crank mechanism is still operating thus warning the operator of the defective springs. In a modification the valve member 44 is divided into two pieces.
Patent GB-1182775-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
Inventor: BARTON GEORGE CLIFFORD
IPC: A43D21/12
Filed: 1966-05-27
Abstract: 1,182,775. Boots &c. BRITISH UNITED SHOE MACHINERY CO. Ltd. 21 April, 1967 [27 May, 1966], No. 34202/68. Divided out of 1,182,773. Heading A3B. The subject-matter of this specification is identical with part of that described in Specification 1,182,773 but the claims are concerned with a lasting machine having a work support, wipers and an adhesive applying device which ejects a metered quantity of adhesive on to the marginal portions of the insole and/or upper.
Patent GB-1397139-A (GB)
Title: Electrical contact
IPC: H01R39/30
Filed: 1972-07-21
Abstract: 1397139 Mercury contact for electrolytic apparatus RAPTES RESEARCHES APPLICATIONS & TRADE ESTABLISHMENT 21 July 1972 [22 July 1971] 34255/72 Heading C7B An electrical contact to a conveyer belt for the electro-deposition of copper comprises a metallic bar immersed in a mercury bath. Belt 2 is wound round pulleys 3 mounted on shaft 4 and is immersed in electrolyte 7. Insulating rims 6 prevent access of electrolyte to the inside of the belt. Mercury bath 10 is confined by flexible insulating beads 11. P.T.F.E. studs 12 may be provided between bar 9 and belt 2 to prevent metallic contact. The belt 2 may be stainless steel. The bar 9 may be copper plated with a metal that does not amalgamate with mercury e.g. nickel.
Patent GB-1442858-A (GB)
Title: Electrical apparatus comprising closed-cell rigid polymeric  foam parts
IPC: H01B3/30
Filed: 1973-07-18
Abstract: 1442858 Closed-cell; insulating; polymer foams BBC BROWN BOVERI & CO Ltd 18 July 1973 [20 July 1972] 34297/73 Heading C3C [Also in Division H1] An electrical apparatus comprises one or more parts formed of a closed cell rigid polymeric foam which has cells which contain at least one expanding agent, other than nitrogen, which is also a dielectric, which has a b.p. of not more than - 20‹ C. at a pressure of 1 atm. and which has a dielectric strength (as defined) greater than that of air. The foamed polymer may be a polyurethane and the expanding agent may be sulphur hexafluoride or a halocarbon, e.g. CF 4 , CHF 3 , CF 3 Cl, CF 3 Br, CHClF 2 , CCl 2 F 2 , hexafluoroethane, pentafluorochloroethane or perfluoropropane. The foam is used as mechanical load-bearing high voltage insulation in the electrical apparatus, e.g. switchgear installation or a transformer.
Patent GB-196333-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M31/093
Filed: 1921-12-21
Abstract: 196,333. DeppÚ, W. P. Dec. 21, 1921. Spray carburetters; vaporezers, external. - A mixture of air and fuel is rendered homogeneous by mechanical means, is heated gradually to a temperature above the vaporizing or boiling points, but below the cracking or dissociating points, of the fuel constituents, the values of such limiting temperatures being those which apply when the fuel is under the conditions of pressure and admixture with air which exist during such heating, and predetermined amounts of hot exhaust gases are then introduced into the mixture, the temperature of which is gradually increased on its way to the combustion chamber, where it is compressed to a pressure and temperature just below the ignition point and then fired. Fuel is supplied to nozzles 3, 4 provided with smaller orifices than usual, heated primary and secondary air is supplied through pipes 8, 14, controlled respectively by valves 7, 12, from jackets 9, 15 surrounding the exhaust pipe 10, and the mixture passes through a choke-tube 16 provided with a centrally-opening throttle valve 17, as described in Specification 11222/15, to a chamber 20 containing a rotary mixer 21; the mixture then passes through an annular conduit 24 formed between inner and outer chambers 25, 27 supplied with exhaust from the exhaust manifold 30 through pipes 29, 31, the chamber 25 being provided at the top with perforations 52, Fig. 2, or a nozzle 53, Fig. 1, to admit a predetermined amount of exhaust gas to the mixture. The intake manifold comprises a curved portion 84 connected at its end 35 with a pair of downwardly-extending flattened sections 36 opening into chambers 37, each of which covers three of the intake ports 38. The sections 36 are surrounded by flattened portions 39 of the exhaust manifold 30 which is provided at the top with an outwardly-extending portion 42 which covers the curved portion 34 of the intake manifold, and opens into a semi-circular portion 44 leading to the exhaust pipe 10. Exhaust gases may also be introduced into the primary and secondary air inlets through pipes 54, 55; into the mixture just above the throttle valve through pipes leading either from the exhaust pipe 10 or from the chamber 27; and into the top and bottom of the sections 36 of the intake manifold through holes or nozzles 61, 62, Fig. 2. Specification 130,209 is referred to.
Patent GB-1499154-A (GB)
Title: Smokeless metal-working lubricant composition
IPC: C10M173/02
Filed: 1975-08-20
Abstract: 1499154 Lubricants GULF & WESTERN INDUSTRIES Inc 20 Aug 1975 [22 Aug 1974] 34649/75 Heading C5F A lubricant for working hot metals, e.g. forging, comprises a mixture of sodium bicarbonate and sodium nitrite with either graphite or zinc oxide. It may be applied dry or mixed with water, and in the latter case may also include a surfactant, a pH adjuster or a thickening agent.
Patent GB-612827-A (GB)
Title: Heat exchanger
IPC: F28D17/02
Filed: 1945-12-21
Abstract: 612,827. Hot-blast stoves; regenerators. KINNEY, S. P., and HARTWICK, L. M. Dec. 21, 1945, No. 34750. [Class 64(i)] A refractory spacer block, Fig. 2, for spacing checker bricks in a hot blast stove or regenerator has a central passageway 42 through it and four projecting lugs 40, 41 on each end face, which has flat, generally quadrant-shaped or triangular, parts 43 between the lugs. In the form shown, the block is generally cylindrical, with channels 39 adjacent to the lugs 40, 41, so that the flat faces 43 are substantially quadrantal. In a modification, these faces are substantially triangular. In a further modification, in which these faces are again substantially triangular, the block is octagonal in plan, the channels 39 are omitted, and the lugs 40, 41 reach from the centre opening to the square outer faces of the octagon. The checker bricks spaced by these spacer blocks are each a rectangular block 35, Fig. 3, with square end faces and central passageway 36, and may have grooved outer surfaces. The checker work is composed of alternate courses of checker bricks and spacer blocks, the bricks being arranged in rows in each course and the spacer blocks being arranged so that each is supported by four blocks below and supports four blocks above. The lugs 40, 42 fit in the gaps between the rows of checker bricks 35. The bottom course of checker bricks 35 is supported by apertured cast steel plates resting on parallel horizontal bars supported by transverse beams carried by vertical columns. Each plate has upstanding lugs arranged to form one or more square sockets for the lower end of a checker brick 35. For example, the plate 20, Fig. 7, has two such sockets formed by upstanding lugs 22. Each socket has a central opening 27 and there is a further opening 28 between the sockets. Downwardly-extending lugs on the bottoms of the plates engage between the supporting bars. The plates may be staggered so as to break joints in one direction. In a hot blast stove, the walls of the checker work chamber are composed of flat surfaces arranged in step formation. each step 'being of such dimensions as to accommodate one or a multiple number of bricks. Each stepped surface may extend through the whole or only part of the height of the chamber. The combustion chamber is elliptical in cross section. The spacer blocks 38 and the checker bricks 35 may be equal in length, but preferably the bricks 35 are much longer than the spacer blocks 38, so that the bricks 35 constitute about 82 per cent of the refractory material on the checker work.
Patent GB-837816-A (GB)
Title: A method and means for indicating the level of electrolyte in a vehicle battery
IPC: G01F23/70
Filed: 1956-11-15
Abstract: 837,816. Batteries. DECOURT, R. R. Nov. 15, 1956 [Nov. 29, 1955; Dec. 14, 1955; July 9, 1956], No. 34943/56. Class 53. [Also in Group XVIII] The necessity of topping-up the electrolyte in an accumulator A is indicated by, for example, a lamp 15 when the electrolyte drops below the level of any of the outlets a, b, c of a tube 1 leading into a closed, slightly pressurized, chamber 2 the liquid space of which is connected to the liquid space of a chamber 12 which is at atmospheric pressure. The resultant reduction of pressure in the chamber 2 allows the level of the liquid, preferably oil, therein to rise with consequential drop in the liquid level of the chamber 12, causing a float 13 to complete the electrical circuit, supplying the lamp 15, by connecting across terminals 11, 14. The lamp 15 may be tested by closing a switch 16 shortcircuiting the terminal 11, 14. The chamber 2 is supplied with air from a chamber 4 through a tube 3 the end of which dips into the liquid in the chamber 2, and the chamber 4 contains a resistor 6 for heating, and thus pressurizing, the air in the chamber 4 and consequently, if the accumulator has been topped up, the air in the chamber 2, the resistor circuit being under the control of a car tail lamp switch 8 which is closed when a brake pedal is actuated. The resistor circuit is also under the control of the float 13 which breaks the contact between terminals 10, 11 when the pressure in the chamber 2 is high enough. On the resistor circuit being opened the chamber 4 cools down causing air to be drawn into it through a tube 5 one end of which is open to the atmosphere and the other end of which dips into the liquid in the chamber 4. Fig. 2 shows an alternative form of the apparatus, the chamber 12 being contained in the chamber 2 and both of these chambers being contained in the chamber 4 while the terminal 14 is placed at the centre of the chamber 2 to reduce the effects of car movement on the liquid level. There are two resistors 61 and 6<SP>11</SP> for use alternatively with a 12-volt or a 6-volt accumulator, the resistor circuit including a bimetallic strip 17 to break the circuit on a high temperature being reached consequent on prolonged braking with low electrolyte level. Fig. 5 (not shown) shows a manifold connected to the end of the tube 1 for fitting to the battery A. Various alternative means for supplying the chamber 2 with gas under pressure are suggested; for example an injector may be operated by heat from a car engine, or a hand- or pedal-operated plunger, or by the pressure of the air due to the motion of the car, or by using the pressure of gas formed within the accumulator itself. Variations of the last-mentioned method are described with reference to Figs. 6, 7 and 8 (not shown).
Patent GB-361606-A (GB)
Title: Metallurgical furnace
IPC: C22B19/14
Filed: 1930-11-20
Abstract: <PICT:0361606/III/1> <PICT:0361606/III/2> A zinc reduction furnace comprises a vertically disposed reduction retort and an eliminator for the removal of lead and other contaminating metals from the zinc vapour, above and in communication with the retort and supported independently of it. The furnace comprises a brick-lined retort 12 within a heating chamber 13 heated in any convenient manner, the retort being supported only at its bottom on the furnace structure. Ports 20, 21 are provided for gas or oil heating.  An eliminator structure 23 is supported by a platform 19 independent of the main furnace structure, and rests on a cooled base member 36 extending completely around the eliminator and supported on cast iron saddles 35 attached to I-beams 34.  The base member 36 is provided with a number of internal passages such as pipes for a cooling medium.  The eliminator comprises a metallic casing 25, heat resistant brick 24 with heat insulating material 26 which may be removed through a door 27.  An off-take 28 communicates with a zinc treatment chamber 29 such as a condenser or a device where the vapour may if desired be oxidized by encountering a blast of air.  The temperature of the eliminator is controlled by regulating the amount of the material 26 and the amount of cooling medium in the base member.  Charge material comprising agglomerates of ore and carbonaceous reducing agent is introduced through a device 30, a cap 31 being removed.  Charging may be intermittent or continuous, a revolving platform 18 removing the spent agglomerates.  Air should preferably be allowed to seep in at the bottom of the retort.  In a modification, Fig. 4, the eliminator 23 rests on the furnace structure I-beams 44 being attached to a baseplate 43, having cooling means if desired, to keep the casing 25 in place.  Specifications 352,005, [Group II], and 361,605 are referred to.
Patent GB-427344-A (GB)
Title: Improvements relating to the securing of metal window, door and like frames to walls
IPC: E06B1/60
Filed: 1933-12-13
Abstract: 427,344. Securing door and like frames to walls. HOPE & SONS, Ltd., H., and BIRCH, F., Halford Works, Smethwick, Staffordshire. Dec. 13, 1933, Nos. 35060/33 and 582/34. [Class 20 (iii)] Door, window, and like frames of metal are secured to walls by fastening members a anchored in the wall and provided with projecting apertured ends for tapered cotter pins by which the frame is clamped against the rabbet of the wall opening. The frame is cut away for the fastenings and a clamping plate j, which may be free or attached to the frame or integral with the cotter pin, may be combined with the cotter. The fastening member may have bent positioning lugs f, g. The fastening members &c. are covered with plaster when fixed.
Patent GB-1120250-A (GB)
Title: Improvements in gas safety control valves
IPC: F23N5/10
Filed: 1965-08-17
Abstract: 1,120,250. Valves. JUNKERS & CO. G.m.b.H. 17 Aug., 1965 [18 Aug., 1964], No. 35119/65. Heading F2V. A gas valve has a rotatable plug 4 to control the main flow through an inlet 2 and outlet 3, and controls the ignition flow through a passage 13 which is branched off the passage 2 upstream of the plug 4, passage 15, Fig. 2, external channel 17 in the plug, and passage 18, 19 and a connection 14 having a conical seat 16 between the branch 13 and the plug channel 17 for the optional supply of a separate external ignition gas supply. When a separate ignition gas supply is to be used, a pipe (31), Fig. 3, not shown, is mounted in the connection 14 so as to close the passage 13, a sealing member (32) seating against the seat 16. When the ignition gas is bled from the main flow the connection 14 is closed by a stud 24. 'The valve also includes a closure member 9, moved by a pushrod 7 against the action of a spring 10, and connected to an armature 11 which, when the closure is opened, abuts an electromagnet 12 of the gas ignition safety device.
Patent GB-1436001-A (GB)
Title: Shirred stick
IPC: B65B9/18
Filed: 1973-07-24
Abstract: 1436001 Shirred sausage casing HOECHST AG 24 July 1973 [26 July 1972] 35134/73 Heading A2B A shirred sausage casing (shown in Fig. 5) has a helical main fold 50 and secondary folds 52 and 53 lying between the helical folds, with each pleats between the main folds overlapping the adjacent fold, the secondary folds in the extended state of the casing (shown in Fig. 7) forming a continuous zig zag line having two series of apices A and B parallel to the helical main fold with alternate sections of the zig zag forming portions of helices in the opposite direction to the main fold. The pitch H of the helical main fold may be 10-29 mm, with corresponding values of # from 9-21. The angle α may be in the range 50-60. The shirred casing may be made from regenerated cellulose having a diameter of 18-40 mm.
Patent GB-522268-A (GB)
Title: Multiple disc friction clutch
IPC: F16D13/54
Filed: 1938-12-05
Abstract: 522,268. Friction clutches. HENNEBRY, H. A. Dec. 5, 1938, No. 35340. [Class 80 (ii)] The clamping plate E is operated by toggle links F engaged by a tapered part of a sleeve C coupled to the operating ring A. The plate E, the nut D and the sleeve are grooved to receive the toggle links.