baber/WOPTO huggingface dataset:
Patent GB-142009-A (GB)
Title: Improvements in or relating to devices for expanding and contracting detachable rims
IPC: B60C25/14
Filed: 1919-08-28
Abstract: 142,009. Howell, C. B. Aug. 28, 1919. Tyre covers and tyre-carrying rims, tools for removing and replacing.-A tool for contracting and expanding split tyre-carrying rims comprises (1) a bar 12 capable of sliding in a U-sectioned member 13 to which are pivoted arms 14, 15, and (2) a lever 19 pivoted to the bar and detachably. connected by links 22 and a pin 25 to the member 13. To expand the rim 10 split at 11, the bar, member 13, and arms 14, 15 are arranged as shown in Figs. 1 and 2. the lever 19 is raised into an approximately vertical position, and the pin 25 is engaged in the approximate notch 18a in the member 13. The lever is then turned from right to left to slide the bar in the member and to force the end of the bar and arms 14, 15 to expand the rim. To contract it, the hooks 16 are engaged on it as shown in Fig. 4, the lever again placed vertical, and the reverse action taken. The parts may be looked by means of the pin 32, or by causing the line 24, 25, Fig. 4, to pass across the pivot 21.
Patent GB-803356-A (GB)
Title: Method for producing zirconium metal
IPC: C22B34/14
Filed: 1957-07-04
Abstract: 803,356. Extracting zirconium. NATIONAL LEAD CO. July 4, 1957 [July 19, 1956], No. 21248/57. Addition to 758,763. Class 82(1) A zirconium metal compact is produced by reacting a halide of zirconium and a mixture of reducing metals in a molten salt bath, consolidating the zirconium particles in the bath to form a compact, and expelling the compact from the bath under pressure. As shown, the apparatus operates in the same way as that of the parent Specification. Vaporous zirconium tetrachloride is fed from tanks 26 and 29, mixed with helium vapour supplied through pipe 28, through pipe 18 to the reaction vessel 10 maintained at 600 to 900‹C. and is reduced to zirconium metal beneath the surface of the molten mixture of sodium and magnesium chlorides 16, by a mixture of sodium and magnesium in the ratio of 1.25 to 7 parts by weight of sodium to 1 part of magnesium, fed from tanks 27 and line 20 respectively. Additional magnesium may be added in an amount of up to 33 per cent in excess of the stoichiometric amount required for the reduction. The zirconium metal compact is formed and expelled by lowering ram 21 into the molten salt bath thereby compressing the metal particles and at the same time displacing an amount of molten salt, equal to the amount formed prior to the consolidation of the particles, through pipe 23 into vessel 24. The compact may be used as a consumable electrode for the production of arc-melted zirconium. Specification 799,471 also is referred to
Patent GB-1335916-A (GB)
Title: Pneumatic anti-skid devices
IPC: B60T8/34
Filed: 1971-04-19
Abstract: 1335916 Anti-skid device KNORR-BREMSE GmbH 19 April 1971 [7 Feb 1970] 21288/71 Heading F2F A pneumatic anti-skid device for use in a vehicle braking system which has a skid-sensing means connected to the device is, in use, connected in the braking line and allows braking pressure build up for normal braking applications until a skid is sensed whereby the device brings about a throttled reduction of braking pressure and then permits a subsequent increase in braking pressure at a rate less than the build up of braking pressure during normal brake applications. These steps are effected by a first valve 44, 46 and a second valve 13, 27. In the construction shown the device is in its rest position whence fluid pressure can pass through chambers 12, 14, 36 and 48 to normally apply a brake through an actuator 52. The skid sensing means 78 on sensing a skid activates the solenoid 80 of a solenoid actuated valve member 68, 73 so that the member moves to stop venting of a chamber 40 to atmosphere and apply to the chamber 40 reservoir pressure. This actuates a piston 39 with the resultant opening and closing respectively of a series of valves including valve 44, 46 so that pressure medium in the brake actuator may pass through a throttle 47 in the piston 39 to atmosphere to provide the throttled reduction of braking pressure.  At the same time a chamber 5 is pressurized so that a piston 3 is actuated on extension 13 of the piston-rod 10 thereof throttling the passage between the chambers 12 and 14 so that, on deactivation of the solenoid and return of the parts at the right hand side of the device as seen in the drawing to their rest positions a throttled brake application is effected until such time that a chamber 24 which is connected to the chamber 48 reaches such a pressure that a piston 23 is actuated to bring about the cutting off of communication between the two chambers 12 and 14. A stable braking pressure lower than that originally applied is thus achieved. After a time pressure acting in chamber 5 will reach a value due to a throttle 61 which communicates with the atmosphere that the piston 3 will be urged by the spring 6 to its rest position and thus allow a further build up of braking pressure. The piston-rod 10 and extension 13 may be provided with a variably throttled passage 19, the throttling member being adjustable through an opening in the housing 2 of the device, the opening normally being closed by a screw 81. The pressure operating cycle is depicted in Fig. 2 (not shown).
Patent GB-1505301-A (GB)
Title: Fuel injection pumps
IPC: F02M41/12
Filed: 1975-05-20
Abstract: 1505301 Fuel injection pumps ROBERT BOSCH GmbH 20 May 1975 [12 Oct 1974] 21404/75 Heading F1A In a fuel injection pump having a piston 8 simultaneously reciprocable and rotatable within a cylinder 9 to pump and distribute fuel from a working chamber 11, the commencement of fuel delivery and thus the quantity delivered is determined by the closure of a spill passage 26 by a sleeve valve 25 controlled by a centrifugal governor 44. The spill passage 26 is in permanent communication with an annular groove 60 in the cylinder 9 and, during normal operation, delivery is terminated when a relief passage 61, 62 in the piston 8 communicates with the annular groove 60. During starting excess fuel is delivered, since the position of the valve sleeve 25 is arranged to close the relief passage 61, 62 before it is opened by the groove 60. A lever system 29 is disposed between the valve sleeve 25 and the output sleeve 47 of the governor 44. The lever system 29 comprises an intermediate lever 35 carrying a spindle 40 on which a regulating lever 33 and a starting lever 34 are pivotable, the latter carrying a spherical head 31 engaged in a recess 32 in the valve sleeve 25. The position of the intermediate  lever 35 is angularly adjustable about fixed journals 41 to determine the basic setting of the valve sleeve 25 by means of a set-screw 56 and a spring 57. At start-up the governor sleeve 47 causes pivoting of the starting lever 34 alone, against the action of a weak spring 42, but as the speed increases a stop pin 43 on the starting lever 34 prevents further compression of the spring 42, whereafter both levers pivot together against the action of an adjustable tension spring 37. Reciprocation of the piston 8 is effected by a face cam 3 rotatable with the piston and co-operable with rollers 5 on a carrier 65. A piston 66 loaded by series-connected springs 67, 71 and pressurized by the delivery of a feed pump 69 adjusts the angular position of the carrier 65 for changing the timing of injection. The working chamber 11 is filled with fuel during each suction stroke from a suction chamber 22, through a passage 23 and grooves 24 in the piston. Fuel is delivered in turn to outlet 20 via a delivery valve 12, a chamber 13, a passage 14 and grooves 17, 18.
Patent GB-1148454-A (GB)
Title: Cross-linked plastics
IPC: C08G18/10
Filed: 1966-05-13
Abstract: 1,148,454. Cross-linked polyurethanes. FARBENFABRIKEN BAYER A.G. 13 May, 1966 [14 May, 1965], No. 21451/66. Heading C3R. A polyurethane prepolymer which had been derived from an organic polyhydroxy compound having a molecular weight greater than 300 and an organic polyisocyanate is cross-linked by reaction with at least one aromatic diamine which contains at least one linear alkyl substituent in the o-position to the first amino group and two linear alkyl substituents having 1 to 3 carbon atoms in the o-positions to the second amino group. The aromatic diamine is added to the prepolymer at room temperature or if the prepolymer is a solid, at a slightly elevated temperature. If the aromatic diamines are solid they are dissolved in an inert solvent. A solvent may be added to the prepolymer before subsequent reaction. Acetone, dioxane, tetrahydrofuran, dimethyl formamide or benzene may be used as solvents. The organic polyhydroxy compound having a molecular weight greater than 300 may be a polyester, polyether, polyacetal or polythioether, e.g. polypropylene glycol, a polyester derived from diethylene glycol or ethylene glycol and adipic acid and a polyester derived from butane diol, neopentyl glycol and adipic acid. Suitable polyisocyanates are aliphatic, cycloaliphatic or aromatic, e.g. hexamethylene diisocyanate, tolylene - 2,4 - diisocyanate and 65 : 35 mixture of tolylene-2,4- and 2,6-diisocyanates. The aromatic diamines may be 1,3- diethyl-2,4-diaminobenzene, 2,4-diaminomesitylene, 1 - methyl - 3,5 - diethyl - 2,4 - diaminobenzene, 1 - methyl - 3,5 - diethyl - 2,6 - diaminobenzene, 1,3,5 - triethyl - 2,6 - diaminobenzene and 3,5,3<SP>1</SP>,5<SP>1 </SP>- tetraethyl - 4,4<SP>1</SP> - diaminodiphenyl methane. Aromatic diamines which have a linear alkyl substituent with 1 to 3 carbon atoms in both o-positions to each amino group are preferred.
Patent GB-1001145-A (GB)
Title: Poly-ª‰-lactam spinning solutions and process for their manufacture
IPC: D01F6/60
Filed: 1962-06-04
Abstract: A poly-b -lactam spinning solution is made by dissolving a poly-b -lactam in a solution containing an alcohol and calcium thiocyanate in such amounts that the proportion of the poly-b -lactam to the calcium thiocyanate is within the range of from 1 : 1.3 to 1 : 1.8 by weight and the calcium thiocyanate concentration is within the range of from 20 to 28% by weight in the spinning solution so produced. Specified b -lactams are b -methyl-b -butyrolactam, a  : b -dimethyl -b -butyrolactam, a  : a  : b -trimethyl-b  - butyrolactam and b  - carbomethoxy - b  - butyrolactam. Copolymers of b -lactams may also be used in the process of the invention. Specified alcohols are methanol, ethanol and butanol.  An additional solvent exemplified is dilute sulphuric acid.
Patent GB-460875-A (GB)
Title: Improvements in and relating to electric arc discharge devices
IPC: H01J13/34
Filed: 1936-08-04
Abstract: A vapour-filled electric discharge device comprises a glass container the ends of which are sealed by discs which consist of an alloy of 54 per cent iron, 28 per cent nickel and 18 per cent cobalt.
Patent GB-1343141-A (GB)
Title: Electrographic developer apparatus
IPC: G03G15/09
Filed: 1971-04-19
Abstract: 1343141 Electrographic developing apparatus XEROX CORP 19 April 1971 [11 Feb 1970] 21587/71 Heading G2H A magnetic brush is doctored by a serrated blade 12 before contacting a latent image bearing web 21. It is stated that this provides more uniform, and less abrasive, developer application. Blade 12 may be of steel or plastic and may have pointed, curved, or squared serrations. As shown, a drum 13 rotates about a horse-shoe magnet 16. In Fig. 4, (not shown), drum 13 is replaced by an endless belt (23). Drum 13 and belt (23) may be magnetic or non-magnetic. Drum 13 may be plastics coated aluminium or copper. Belt (23) may be rubber optionally impregnated with magnetic material. Drum 13 is preferably driven by a motor which is reversed after developing so as to return the brush to the sump and mix the developer.
Patent GB-1425487-A (GB)
Title: Working of metals
IPC: C10M105/16
Filed: 1973-05-07
Abstract: 1425487 Lubricants UOP Inc 7 May 1973 [8 May 1972] 21638/73 Heading C5F A method of working a metal which is in movable contact with another metal comprises applying to the points of contact a lubricant comprising an alkylphenol and optionally water or solvent other than mineral oil, the amount of alkylphenol being at least 10% by wt. of the lubricant exclusive of water or solvent. Additives may be present such as fatty acids, sulphonates, alcohols, ethers, fatty acid esters, alkanolamine and alkali metal soaps of fatty acids, inorganic and organic nitrates and phosphates. The phenol may be substituted by groups containing hetero-atoms. Examples use octyl-, nonyl- or dodecylphenols in conjunction with oleic acid, stearic acid, or potassium stearate, alone or mixed with water, or hydrogenated tallow glycerides. The lubricant may be used in the working (e.g. tube reducing) or non-ferrous alloys.
Patent GB-1507950-A (GB)
Title: Pyrimidine(4,6)diyl-bis-(thiono)(thiol)-phosphoric(phosphonic)acid esters process for their preparation and their use as insecticides or acaricides
IPC: C07F9/6512
Filed: 1976-05-25
Abstract: 1507950 Pyrimidine (4,6) diyl - bis - (thiono)- (thiol)-phosphoric (phosphonic) acid esters; and 4,6-dihydroxypyrimidines BAYER AG 25 May 1976 [27 May 1975 18 July 1975 26 July 1975] 21645/76 Headings C2C and C2P  Novel phosphorus compounds have the formula where R is C 1-6  alkyl; R 1  is C 1-6  alkyl, alkoxy or alkylmercapto, or phenyl; R 2  is H, C 1-5  alkyl, alkoxy or alkylmercapto, or phenyl; R 3  is H, halogen, or C 1-4  alkyl and X is O or S. The compounds are prepared by reacting a phosphorus compound of formula where hal is halogen, with the appropriate 4,6- dihydroxypyrimidine compound either as a di-alkali metal, di-alkaline earth metal or diammonium salt or in the free hydroxy form in which ease an acid acceptor is present. The products are used as insecticides or acaricides. 4,6-Dihydroxypyrimidines of formula where R 2  and R 3  are as above, are prepared either by (a) reacting a dialkylmalonate with an amidine, isourea or thiourea or (b) by halogenation of compounds in which R 3  is H to give compound in which R 3  is hal or (c) by reacting compounds in which R 2  is -SH with an alkyl halide or alkyl sulphate to give compounds in which R 2  is alkylmercapto.
Patent GB-1420981-A (GB)
Title: Electric connectors
IPC: H01R13/46
Filed: 1973-05-07
Abstract: 1420981 Two part couplings BENDIX CORP 7 May 1973 [8 May 1972] 21657/73 Heading H2E  A connector comprises two coupling parts 2, 3 held in a housing consisting of first 100 and second 200 sleeves butting each other at partly cut-away ends, each end having parts of one or more annular grooves such that the two ends align forming one or more continuous circumferential grooves 203, 204; the sleeves being releasably fastened together by one or more snap rings 301, 302 in the groove or grooves. The two rings 301, 302 are shown holding a coupling ring 400 between them which may be mounted on a panel. The coupling parts 2, 3, their respective contacts 6, 11 mounted on respective inserts 5, 13 and their mounting within the sleeve 100 are all substantially similar to those described in Specification 1,232,036.
Patent GB-737652-A (GB)
Title: Improvements in or relating to motor bicycles or scooters
Inventor: PIATTI SANZIO PIO VINCENZO
IPC: B62K25/20
Filed: 1950-09-01
Abstract: 737,652. Spring frames for motor-cycles. PIATTI, S. P. V. Aug. 28, 1951 [Sept. 1, 1950], No. 21681/50. Classes 136(1) and 136(3). In a motor scooter comprising a tunnelshaped body open at its underside and within which are mounted the road wheels 13, 48, engine 8 and ancilliary equipment, the body has apertures 4, 5 in its front and rear ends respectively to permit, by reason of the forward motion of the scooter a stream of air to pass in through the front apertures 4, to flow around and cool the wheels, engine and ancilliary equipment and to pass out through the rear apertures 5. The body is made from two shells 1, 2 which are stamped from sheet metal and joined together at 3 along the longitudinal axis of the body by welding. The join between the two shells is covered by a channelled strip 74 to form a housing in which electric leads 3 for the supply of current to electrical equipment such as the front lamp and the rear lamp 72 are accommodated. The body is strengthened by reinforcing flanges 6 and one or more cross members 7. The fuel tank 69 is housed in the body and has its filling pipe so arranged that its filler cap is situated in front of a leg shield 67 of the scooter. Access to the interior of the body is obtained through an aperture having a cover 70 fitted in one side of the body above a foot rest 66. The engine 8 and gear-box 10 are constructed as a single unit which is mounted in the body on a single transverse axis that comprises a pair of aligned bearing bolts 36, 37 carried by the body. The rear wheel 13 is fitted directly to a shaft 12 extending from the gearbox 10. A spring 38 is connected between the gear-box and the body in the manner described in Specification 737,718. A kick-starter 79 of the type described in Specification 737,717 [Group XXVII] is provided.
Patent GB-1460128-A (GB)
Title: Carboxyfunctional silicone containing thermoplastics
IPC: C08K5/00
Filed: 1975-05-21
Abstract: 1460128 Thermoplastics-siloxane compositions DOW CORNING CORP 21 May 1975 [10 June 1974] 21777/75 Headings C3P and C3T Compositions comprise (A) 90 to 99À9 weight per cent of a thermoplastic material and (B) 0À1 to 10 weight per cent of a carboxyfunctional siloxane composed of 0À1 to 50 mole per cent of R a R<SP>1</SP> b SiO (4-a-b)/2  units and 50 to 99À9 mole per cent of R<SP>11</SP> c SiO (4-c)/2  units where R is a carboxy functional radical, and has an average value of 1 to 3, R<SP>1</SP> is a hydrocarbon or halogenated hydrocarbon radical, b has an average value of 0 to 2, the sum of a and b is 1 to 3, R<SP>11</SP> is a hydrocarbon or halogenated hydrocarbon radical and c is 0 to 3. The thermoplastic may be a polystyrene, polyolefin, polyvinyl halide, fluorocarbon, polyamide, polyurethane, cellulosic, acrylic, polyolefin sulphide, phenolic, polycarbonate, polysulphone, acetal, polyxylylene, polyoxyalkylene, polyarylene oxide, ABS, styrene/acrylonitrile or styrene/acrylonitrile/ silicone resin, and the compositions may be moulded into bottle closures of improved lubricity. Examples describe compositions of polystyrene with trimethylsilyl terminated siloxanes containing (CH 3 ) 2 SiO units and units.
Patent GB-605576-A (GB)
Title: Semi-automatic weighing machine
IPC: G01G1/26
Filed: 1945-08-24
Abstract: 605,576. Weighing-apparatus. RECSI SOC. ANON. Aug. 24, 1945, No. 21794. Convention date, April 13, 1943. [Class 143] A semi-automatic weighing machine comprises a base and an upstanding head provided with a weight-indicating scale or pointer, a displaceable weight for altering the weighing capacity ot the machine, means, operated by a control rod or member, for raising or lowering the said weight into inoperative or operative position, and means operated by the control rod or member for indicating the weighing range in use, all housed within the said head. The scale has a base 1, beam 2, and head 28 enclosing the dials, pointers 38, upright 3, cross-bar 18, and counter-beam 29. A cross-arm 42 is provided with branches 4 carrying knifeedges 8. The branches 13 of a U-member 12 have slots 15, 16 guided by screws 14, 17 respectively and carry knife-edges 9 connected to springs 10. Levers 19 pivot on screws 14, and are connected at their inner ends by slots 37 engaging a pivot 20, while their outer ends carry plates 25 which are numbered to indicate the weighing range. One lever is pivoted to a rod 23 which is provided with a stop 33, and a lug 24 having a handle 36. A spring plate 31 contacts the end of rod 23 when this is forced down by handle 36, so that stop 33 engages a slot 44 and holds the rod until pressure inwards on handle 36 frees it. The additional mass 5 has a cross-piece 6 with grooves 7 to engage knife-edges 8 or 9. As shown in Fig. 1, mass 5 rests on knife-edges 8, the plates 25 showing numerals 2 and 1 as the limiting weights. To weigh between 1 and 0, handle 36 is depressed to lock rod 23, causing lever 19 to pivot at 14, raising pivot 20 and cross-arm 12 which carries slides 13 so that knife-edges 9 engage the cross-arm 6 of mass 5. Plates 25 will now display figures 1 and 0 as the limiting weights. The springs 10 return the mechanism to its normal position on release of stop 33.
Patent GB-717389-A (GB)
Title: Releasable pipe connections
IPC: F16L5/10
Filed: 1952-09-01
Abstract: 717,389. Pipe connections. SULZER FRERES SOC. ANON. Sept. 1, 1952 [Sept. 4, 1951], No. 21900/52. Class 99 (1). [Also in Group IX] An elastic sleeve 2, e.g. of rubber, fits partly over the ends of pipes 1, 3, and the internal diameter of one pipe is greater than the external diameter of the other pipe by at least four times the thickness a of the wall of the sleeve. The external surface of the pipe 1 may be provided with circumferential grooves. To make a connection between the pipes, the smaller pipe 3 is used to turn back the free end of the sleeve 2 into the pipe 1 and then inserted into the sleeve as shown in Fig. 2, after which the pipe 3 is withdrawn to reverse the whole of the turned-back portion of the sleeve, Fig. 4, and finally moved inwardly into the pipe 1 so that the sleeve folds over upon itself in the annular space between the pipes, Fig. 5. The pipes may form part of a suction thread-catching arrangement in a spinning machine (see Group IX).
Patent GB-642864-A (GB)
Title: Improvements connected with grinding machines
IPC: B23F5/04
Filed: 1948-08-20
Abstract: 642,864. Claw clutches. COVENTRY GAUGE & TOOL CO., Ltd., JELLIS, M., and DARBY, W. Aug. 20, 1948, No. 21954. [Class 80(ii)] [Also in Group XXII] Drive is transmitted from a shaft 3 to a shaft 4 initially through friction clutch members 1 and 2 and finally through claw clutch members 5 and 6. The clutch is operated manually by a yoke 26 secured to a rod 24. When the rod 24 is moved to the right, springs 28 engage a cone member 1 with a mating member 2 to take up the drive. Further movement of the rod disengages the member 2 against the springs 33 by means of a pin 29 abutting a shoulder 31. At the same time, the claw clutch members 5 and 6 are engaged. The members 1 and 2 may be formed as plates.
Patent GB-656453-A (GB)
Title: Improved railway or other trackline wheel and method of making the same
IPC: B60B17/00
Filed: 1946-07-24
Abstract: 656,453. Railway wheels. GREENBERG, L. July 24, 1946, No. 22030. Convention date, Aug. 9, 1945. [Class 144 (i)] [Also in Group XXII] A centrifugally-cast steel wheel comprises a rim, disc or spoked body, and hub, with a castiron central bush fused into the hub during the casting operation. The rim and flanged tread may be separately cast in a chill-mould. Fig. 2 shows a mould comprising a lower part 12, mounted on a pedestal 10, and an upper part 13 secured by cotters 26. Refractory cores 18, 33 are assembled in the mould-part 12, the core 33 (on which the cast-iron bush 32 is positioned), being seated on a metal plate 17. The metal from the pouring core 30 is led around the bush 32 through openings 34, vents 31 being provided between the core 30 and a metal insert 28 in the mould-part 13. For ejecting the cast wheel, a plunger 11 is adapted to slide through the hollow pedestal 10 and an opening in the lower mould-part 12. Fig. 4 shows a modification in which the pouring core 30 rests on a bottom core 37 having apertures 38 through which the metal flows around the lower edge of the bush 32 into the hub cavity. In a further modification, the metal flows into the mould through registering apertures in the core 30 and bush 32. The wheel may be formed with sprag-holes and, as shown in Fig. 7, with cooling fins 44 and slots 45.