baber/WOPTO huggingface dataset:
Patent GB-897811-A (GB)
Title: Improvements in artificial legs
Inventor: BLATCHFORD BRIAN GEOFFREY
IPC: A61F2/64
Filed: 1959-10-09
Abstract: 897,811. Artificial legs. BLATCHFORD & SONS Ltd., CHAS. A. Jan. 6, 1961 [Oct. 9, 1959], No. 34265/59. Class 81 (2). A knee joint connecting upper and lower limb members of an artificial leg includes braking means comprising a brake drum 2 on one member and a brake element 6 on the other member so arranged that after a change in the direction of flexion of the knee, initial relative angular movement between the members is not braked but further movement is braked by frictional engagement between the braking element and the drum. A spindle 1 carries a coaxial brake drum 2 and is fixed to the lower limb member. A braking member 6, which frictionally fits within the drum, is carried by bearing housings 5 for the spindle which are fixed to the upper limb member. A projection 11 of arcuate crosssection fixed to one bearing housing is received in an arcuate recess 10 in the braking member. The projection has the same curvature as the recess but is smaller in arcuate extent, e.g. 10 degrees less, so that the braking member can move to a limited extent relative to the projection. After a change in direction of flexion of the knee joint the projection initially moves freely in the recess towards one end so that there is no braking effect between the members. Continued movement in the same direction after the projection has reached one end of the recess is braked by frictional rotation of the brake member 6 within the drum 2. The braking effect is adjusted by rotating a disc 17 having an operating lug 19 so that through the medium of a rod 15, an adjusting-screw 14 and a cross-bar 12 pressure forcing the braking member into the drum may be varied.
Patent GB-619010-A (GB)
Title: Improvements in and relating to means for simultaneously and individually controlling the speeds of rotating devices or machines
IPC: H02P29/00
Filed: 1946-11-19
Abstract: 619,010. Electro-magnetic clutches. BRITISH THOMSON-HOUSTON CO., Ltd., and JEFFERSON, H. F. Nov. 19, 1946, No. 34269. [Classes 35 and 38 (iv)] The speeds of a plurality of eddy-current clutches driven from a constant speed source cre controlled simultaneously by means of mechanically coupled field rheostats 3, 5, each having series and shunt trimming rheostats 4a, 4b, and 6a, 6b, respectively, which provide an independent control of each coupling within limits set by the main rheostats. It is stated that these independent controls are graded to suit the characteristic of the drive. Specification 568,730 is referred to.
Patent GB-312201-A (GB)
Title: Improvements in the preparation of products of latex character
IPC: C08F36/04
Filed: 1927-12-19
Abstract: 312,201. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 19, 1927. Caoutchouc, synthetic.-Diolefines such as butadiene and its homologues and analogues are emulsified, dispersed or dissolved in aqueous media by means of soap-like dispersing agents, such as sulphonic acids or their salts, or oleates, and then polymerized in presence, if desired, of buffer solutions of fixed hydrogen-ion concentration, such as pH4-8.5, to produce products similar to latex; proteins may also be added. Oxidizing agents such as hydrogen peroxide, urea-hydrogen peroxide, or other peroxides or ozonides may be used to facilitate the polymerization. Acid-fixing agents may also be present. The polymerization is preferably effected below 60‹ C., for instance at room temperature, and the oxidizing and acid-fixing agents may be added gradually. The latex may be coagulated in known manner, for instance with acetic or hydrochloric acid. In examples, (1) a mixture of #-methyl butadiene, ammonium oleate, trisodium phosphate, hydrogen peroxide, glue, and water is emulsified and allowed to stand for 190 hours: (2) a mixture of butadiene, ammonium linoleate, ammonium oleate, sodium carbonate, disodium phosphate, hydrogen peroxide, glue, and water is emulsified in a pressure vessel at 30-40‹ C.; (3) butadiene is emulsified as in the first example but without hydrogen peroxide, the emulsion being forced through a long system of pipes mounted in a thermostat at 30-40‹ C., the hydrogen peroxide being added gradually; (4) isoprene is emulsified with an aqueous solution of ammonium oleate and di- and tri-sodium phosphate and kept at 60-80‹ C. in a pressure vessel for 3 weeks; (5) isoprene is emulsified with water, sodium oleate, the sodium salt of isobutylnaphthalene sulphonic acid, glue and disodium phosphate and kept at 80-90‹ C. in a pressure vessel; (6) a mixture of isoprene and butadiene is emulsified with water, turkey-red oil and trisodium phosphate. According to the Provisional Specifications, the polymerization may be effected by means of light of short wave-length, acrylic esters, acrolein condensation products, alkylamines, arylamines or the like. Specifications 283,840, 286,272, 292,103, 294,661, 294,963, 297,050 and 300,167 are referred to.
Patent GB-520061-A (GB)
Title: Improvements relating to filler caps for automobile radiators and analogous closures
IPC: F01P11/02
Filed: 1938-11-26
Abstract: 520,061. Filler cap stoppers. ISHERWOOD, N. Nov. 26, 1938, No. 34501. [Class 125 (iii)] A filler cap for automobile radiators and similar closures has a bridge member 22 attached to the cap 16, its ends engaging cam surfaces on a locking sleeve 8 when the cap is closed, and so pivoted that the filler aperture is practically free from obstruction when the cap is in open position shown in Fig. 4. The cam surface 14 is the upper edge of a part helical slot 12 in the sleeve 8, and the lower-edge of the sleeve forms the other cam surface 13. The cap 16 has a peripheral rubber ring 17 and a flanged disc 15 which carries a rubber washer 19 and the lug 20 which has an arcuate slot 21 for the reception of the pivot pin 25. This pin passes through the bifurcated ends 23, 24 of the cranked arm 26 of the bar 22. Normally when the cap is closed, the ends of the bar 22 are locked by their engagement with the sleeve 8. To lift the cap, it is first rotated until the end 221 of the bar 22 reaches the slot 27 in the sleeve 8. The other end 222 of the bar at the same time reaches the expanded part 30.of the slot 12, and is provided with stops 28, 29 to keep it in position while the' cap and bar swing from the closed position to the open position. As this occurs, the pivot pin 25 moves along the slot 21, and the cap is held in its open position by a detent 33 on the lug 20 engaging the bar end 221. A projection 31 on the bar 22 enters a recess 32 in the slot 12 during the opening swinging motion of the cap, so that the bar 22 cannot be moved laterally until the cap has been moved to its closed position.
Patent GB-885983-A (GB)
Title: Improvements in or relating to stand heads for instruments or the like
Inventor: WOLF GUNTHER
IPC: F16M11/06
Filed: 1960-10-07
Abstract: 885,983. Stand heads. FEINMESS DRESDEN VEB. Oct. 7, 1960, No. 34513/60. Class 52(3) [Also in Group XX] A stand head for the mounting and quicklevelling of geodic instruments, comprises an instrument support 1, a stand support 2 connected to the instrument support through a Cardan joint, the underside of the support 2 being formed as a part surface of a sphere the centre of which lies at the intersection of the Cardan joint axle journals 5, 6, 8, 9, a clamping member 13 provided with a complementary part spherical surface bearing against the underside of the stand support 2, a threaded bolt 12 mounted centrally in the instrument support 1 and extending through the stand support 2 and the clamping member 13 and carrying a clamping knob 11 on its threaded end, and an elastic sleeve 14 covering the connection between the supports 1, 2, the arrangement being such that the supports 1, 2 can be clamped in firmly in a desired adjusted position by operation of the clamping knob. A spirit level 15 is provided in the instrument support 1.
Patent GB-912609-A (GB)
Title: Improvements in and relating to the electroplating of aluminium and alloys thereof
IPC: C25D5/14
Filed: 1961-09-27
Abstract: 912,609. Electro-plating aluminium with Chromium. KATAYOSE, K. Sept. 27, 1961, No. 34592/61. Class 41. Aluminium and aluminium alloy surfaces are given a porous chromium surface capable of absorbing lubricating oil, by (1) cleaning with HCl and HF, (2) anodically oxidizing using an acid solution, which gives a rough surface, and then (3) plating with an adherent soft layer of chromium, (4) plating with a hard chromium layer, and finally (5) applying a porous chromium layer. The electrolytes and plating conditions for each plate are specified. The acid anodizing electrolyte may be chromic, sulphuric, or phosphoric acid.
Patent GB-403522-A (GB)
Title: Improvements in and relating to liquid fuel burning apparatus
IPC: F23N1/00
Filed: 1932-12-07
Abstract: 403,522. Thermally-actuated valves. McKEAN, J. G., Westerhill, Mount Vernon, Lanarkshire, and JONES, R. F., 239, Auldhouse Road, Newlands, Glasgow. Dec. 7, 1932, Nos. 34634/32 and 7686/33. [Class 135.] A valve chamber 23 through which liquid fuel can return from a burner 1, when cold, to the fuel pump suction pipe 26 at starting comprises inlet and outlet compartments 31, 32 and a valve 28 fitted with a depending tube 35 containing liquid which when heated expands into a bellows 36 and closes the valve when sufficiently heated. An adjustable screw 37 limits the displacement of the valve.
Patent GB-1524034-A (GB)
Title: Magnetooptical transducers
IPC: G01R33/032
Filed: 1975-08-21
Abstract: 1524034 Measuring current SIEMENS AG 21 Aug 1975 [5 Sept 1974] 34699/75 Heading G1U Current, for example in a high potential line, is measured by an arrangement in which (1) two coherent plane polarized beams of light from two mirrors 11, 12 are amplitude modulated 110, 120, in quadrature, i.e. their intensities I c  and I 2  respectively are given by- and (2) the planes of polarization of the two beams are then each rotated 111, 121, by 45 degrees but in opposite directions, (3) the resulting beams are both passed through a Faraday rotator, 130, to a winding 131 on which the current to be measured is passed, thus rotating the planes of polarization of the two beams by an angle #, say, (4) the two beams are resolved 132 into two perpendicular directions of polarization parallel to the two directions which the two beams had before entering the rotator, (5) the emerging beams are converted 1101, 1201, into electric signals and differenced, 1110, and (6) the phase of the resulting difference signal is determined 1111, this phase being a measure of the current to be measured.
Patent GB-1170020-A (GB)
Title: Improved ignition system
IPC: F02P1/08
Filed: 1968-07-22
Abstract: 1,170,020. Ignition systems. TECUMSEH PRODUCTS CO. July 22, 1968 [July 20, 1967], No.34810/68. Heading F1B. An ignition system of capacitor discharge type for igniting a combustible charge in an internalcombustion engine comprises a source of electrical energy 38, a capacitor 62, a first series circuit coupled across the source for charging the capacitor and including an asymmetrical conducting device 60 and a transformer primary winding 64, an electronic control device (controlled rectifier) 74 having a main current conducting path and further having a control input 80 for controlling conduction in the main path, trigger means 52 operatively coupled to the control input to initiate conduction in the main path in accordance with predetermined timing of the engine and a second series circuit for discharging the capacitor in one direction and comprising the capacitor the winding and the main current path of the electronic control device 74. Circuit means (Zener diode) 58 has first and second terminals and provides a first low impedance path between the terminals for current in a first forward direction therethrough and provides a high impedance path between the terminals in a reverse direction for applied reverse voltage less than a critical reverse breakdown voltage, the circuit means further providing a second low impedance path in the reverse direction between the terminals when applied reverse voltages are greater than the critical voltage. The system further comprises a third series circuit for discharging the capacitor in an opposite direction and including the capacitor 62 the winding 64 and the first low impedance path 58. In a modification (not shown) the diode 58 is replaced by a diode associated with a resistor and a neon lamp. In another modification a silicon diode is connected in series between the cathode of the controlled rectifier 74 and the output terminal 46. Connected across the coil 52 is a voltage divider comprising a resistor and a thermistor.
Patent GB-1314433-A (GB)
Title: Vehicle transmission
IPC: B60K17/36
Filed: 1970-07-17
Abstract: 1314433 Driving multiple axles LEO GOTTWALD KG 17 July 1970 [25 July 1969] 34841/70 Heading B7H A heavy transport vehicle or mobile crane has a front axle and a pair of tandem rear axles 4, 5 all driven from a change-speed gear-box through a transfer gear-box 6 mounted on the forward tandem axle 4. The transfer gear-box 6 is triangular in transverse section and includes a funnel-shaped housing 10 attached to the rear of the axle 4 by a flange. The transfer gearing is connected through a universal coupling 7 to an input shaft 8 from the change-speed gearing and through a universal coupling 9 to a front wheel drive-shaft 11 disposed to one side of and below the shaft 8. The transfer gearing drives the axle 4 through a drive in the housing 10, and the axle 5 through a universally-jointed shaft 13. A lockable inter-axle differential may be included in the transfer gear-box 6.
Patent GB-1033777-A (GB)
Title: Bis-anilide derivatives
IPC: C07C275/42
Filed: 1964-05-27
Abstract: The invention comprises compounds of the formulae: <FORM:1033777/C2/1> <FORM:1033777/C2/2> wherein R1 is hydrogen, C1- 6 alkyl or phenyl-C1- 6 alkyl and n is 0 or an integer from 1 to 8. Compounds of the Formula I are prepared by reacting 3-amino-5-nitrobenzoic acid, or an ester thereof, of the formula: <FORM:1033777/C2/3> with an alkanedioic acid dihalide of the formula X-CO-CnH2n-CO-X, wherein X is chlorine or bromine, to yield an N,N1-bis-(3-nitro-5-carboxyphenyl)alkanedioic acid diamide, or bis ester thereof, of the formula: <FORM:1033777/C2/4> which is then catalytically hydrogenated.  The compounds of Formula II are prepared by the above process for the preparation of compounds of the Formula I but substituting phosgene for the alkanedioic acid dihalide (X-CO-CnH2n-CO-X).
Patent GB-370857-A (GB)
Title: Safety razor guard
IPC: B26B21/16
Filed: 1931-03-06
Abstract: 370,857. Safety razors. GELL, J., 123, Upper Tollington Park, Stroud Green, London. March 6, 1931, No. 35105. Divided on 366,316. [Class 30.] To provide increased clearance for lather &c., without reducing the bladebearing surface of the teeth of a safetyrazor guard, the upper sides of the teeth b are bevelled along a curved path c to form recesses which extend beyond the roots of the teeth and leave a knife-edge e adjacent the cutting edge of the blade which lies along the line l, m. The lower surface is unmodified.
Patent GB-646178-A (GB)
Title: Explosion combustion turbine plant
IPC: F02C5/12
Filed: 1947-12-31
Abstract: 646,178. Gas turbine plant. FRANCIS, E. L. M. (Inffeld, K. L. G. M. von.). Dec. 31, 1947, No. 35244. Drawings to Specification [Class 110(iii)] Gases from explosion chambers, fitted with discharge valves, pass to a Curtis-type turbine with two rows of blades and then to the opposite ends of a dual-flow drum turbine. The exhaust from the central space of the drum turbine goes to propulsion jets. The plant is arranged for aircraft propulsion in a streamlined fairing with the parts in the following order: Starting at the down-stream end, a circular assembly of explosion chambers, the Curtis turbine, the dual-flow turbine, a circular assembly of three axial-flow air-compressor stages, the gears for driving these stages, the gears for driving oppositely-rotating air-screws and the air-screws. Each combustion chamber has two discharge valves. One controls the discharge of high-pressure explosion products to the Curtis turbine and the other controls the discharge of residual gases, ejected by the incoming air, direct to the dual-flow turbine. The air inlet valves and the discharge valves are opeated hydraulically by means of pressure fluid control valves actuated by cams on a central shaft separate from the turbine shaft and driven by an electric or other motor. This shaft also drives the ignition generator. The shaft and its associated parts are carried by a cylindrical frame in line with the turbine shaft and having radial brackets which support the combustion chambers. The high-pressure compressor stage delivers into a volute chamber from which the air passes to the combustion chambers along ducts formed in the walls of the outer fairing.
Patent GB-793105-A (GB)
Title: Dialkylacetals and a process for their preparation and transformation into amino compounds
IPC: C07D213/51
Filed: 1954-12-06
Abstract: The invention comprises compounds of the general formula: <FORM:0793105/IV (b)/1> (wherein R1 is a phenyl radical with or without halogen or alkoxy substituents or a pyridine or a thiophone radical, R3 is an alkylene radical containing at most 4 carbon atoms and R4 is methyl or ethyl); and a process wherein a compound of the above formula is first prepared by reacting a compound of the formula: <FORM:0793105/IV (b)/2> with the appropriate a -halogen acetal in presence of sodamide and is then dissolved in a non-polar solvent and converted by means of hydrochloric acid into the hydrochloride of the free aldehyde and this hydrochloride is then catalytically hydrogenated in presence of an amine HNR5R6 to form a compound of the formula: <FORM:0793105/IV (b)/3> R5 being hydrogen or an alkyl radical of at most 4 carbon atoms and R6 being an aliphatic hydrocarbon radical.  The preparation of the acetals is conveniently conducted in a benzene hydrocarbon solvent, the sodamide either being added to the solution of the two reactants or the sodium compounds of the substituted methanes being first prepared in liquid-ammonia or inert solvents and then condensed with the a -halogen acetals.  In examples: (1) and (3) 2-benzylpyridine and bromacetaldehyde diethylacetal give b -phenyl-b -pyridyl-(21)-propionaldehyde diethylacetal, this with concentrated HCl in benzene gives b -phenyl-b -pyridyl - (21) - propionaldehyde hydrochloride and this on catalytic hydrogenation in presence of dimethylamine yields 1-phenyl-1-pyridyl-(21) - 3 - dimethylaminopropane, the maleate of which is described; (2) the above processes are repeated using 2-(p-chlorobenzyl) pyridine in place of the 2-benzyl pyridine, the corresponding intermediates and final product being obtained. Reference is also made to the following additional starting materials of the second general formula above: 4-benzylpyridine, 2-(p-methoxybenzyl) - pyridine and thienyl - (2)-pyridyl-(2)-methane.
Patent GB-1317199-A (GB)
Title: Method of producing a semiconductor device
IPC: H01L23/485
Filed: 1970-07-21
Abstract: 1317199 Semi-conductor deyices LICENTIA PATENT - VERWALTUNGS - GmbH 21 July 1970 [23 July 1969] 35290/70 Heading H1K The emitter region 6 of a planar transistor is diffused into a base region 4 in a semi-conductor body 1 through a window in an oxide layer produced by thermal oxidation, after which a further insulating layer 9 is formed in the window by a low-temperature process such as pyrolysis or R.F. atomization and the emitter contact 11 is applied to the region 6 through an opening formed in the insulating layer 9. The layer 9 may be an oxide or nitride layer. The base region 4 is itself first diffused through a window in a thermally produced oxide masking layer 2, and contact thereto is made through the thermally produced oxide layer thereon after diffusion of the emitter region.
Patent GB-737367-A (GB)
Title: Improvements in or relating to production of cellular structure
Inventor: SCHWENCKE EDMUND HUGO
IPC: C08J9/12
Filed: 1953-12-18
Abstract: A cellular structure is produced in polyvinyl chloride or vinyl chloride-acetate copolymer dispersed in sufficient plasticizer to provide a free-flowing mass, by dispersing an inert gas throughout this mass in a closed container while maintaining within the container a pressure exceeding 100 lb./sq. inch, and discharging the mass from the container under the influence of the pressure maintained in the container and at a temperature below the gelling temperature of the mass, the mass being discharged in an ungelled state in the form of an expanded creamy foam.  The process may be carried out batchwise or continuously.  The gas may be dispersed in the resin by agitating the container, by passing the gas upwardly through the resin or by passing the resin through foraminous screens disposed concentrically in the container. Specified plasticizers are ester-type plasticizers such as phosphates, phthalates, adipates, sebacates, azelates, glycollates or an aromatic hydrocarbon oil, e.g. dioctyl phthalate and tricresyl phosphate, while the inert gas may be carbon dioxide, nitrous oxide, helium or mixtures thereof.  A water-insoluble metallic salt of a fatty acid containing from 12 to 22 carbon atoms in the molecule, e.g. aluminium stearate is preferably also present.  The proportion of fatty acid salt to plasticizer may be one part salt to 50 to 200 parts plasticizer.  It is preferred to mix the salt and plasticizer and add the mixture to the polymer, preferably by dispersing the salt in a small quantity of plasticizer, heating it slowly to 230 DEG  F., maintaining this temperature until the salt is melted, cooling to room temperature and then adding additional plasticizer.
Patent GB-914700-A (GB)
Title: Apparatus for removing gas samples from and measuring the temperature in shaft furnaces
IPC: C21B7/24
Filed: 1960-10-14
Abstract: 914,700. Thermometers. HUTTENWERK SALZGITTER A.G., DANGO, B., and DIENENTHAL, H. Oct. 14, 1960 [Nov. 5, 1959], No. 35311/60. Class 97 (3). Apparatus for taking a sample of gas from, and measuring the temperature in, a shaft furnace, comprises a double-walled tube 1, Fig. 5, through which a cooling medium, such as water, can be passed from hose 12, containing a thermo-element at its front end and capable of introduction through an opening 9<SP>1</SP> into the furnace by means of two power-driven spindles 3 arranged one on either side of tube 1, the end bearings for the spindles 3 and the supporting rollers 4, 5 for the tube 1 being mounted on a platform 25. An electric motor 6 drives the spindles 3 through gearing 7, a cam switch 8 automatically disconnecting the motor 6 when the tube 1 is in its end positions. A crosshead 2 on tube 1 is engaged with the spindles 3. The cooling medium enters tube 1 through pipe 13, Fig. 3, and is discharged through pipe 14. The thermo-element 17 is fitted to the front end of a hollow rod 16 which passes through a stuffing- box 19 at the rear end of tube 1 and may be actuated by a lever 21 so that when tube 1 has been inserted into the furnace and lever 21 moved in the direction of the arrow, the thermoelement 17 is moved to the dotted line position and a collar 18 on rod 16 moves clear of tube 1 to allow a gas sample to be withdrawn through the annular space surrounding rod 16 and be conducted away through connection 22. A slide valve 10<SP>1</SP> and stuffing-box 10 allow tube 1 to be withdrawn completely from the furnace for replacement without allowing a blast of hot gas to escape. The platform 25 may be fixed so that tube 1 always enters the furnace at the same angle or, as shown, it may be mounted by wheels 27, 28, 29 on a framework 30, the valve 10<SP>1</SP> and stuffing-box 10 being mounted on a bolt 24 for pivoted movement about a vertical axis.