baber/WOPTO huggingface dataset:
Patent GB-729038-A (GB)
Title: Improvements in or relating to electromagnetically operated iris diaphragms
Inventor: AUSTIN BASIL BROUGHAM
IPC: G03B9/08
Filed: 1951-11-23
Abstract: 729,038. Iris diaphragms; photographic shutters. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 23, 1953 [Nov. 23, 1951], No. 27579/51. Classes 97(1) and 98(1). [Also in Group XXIX] An electromagnetically operated iris diaphragm, e.g. an iris shutter diaphragm type of camera shutter, comprises an annular armature concentric with an annular electromagnet, and means for camming the armature when it moves axially on energizing the electromagnet so that the armature is also rotated to cause means connecting it to the diaphragm blades to open the blades when the electromagnet is energized. As shown, the armature 4 is also the blade ring and carries the blade driving pins 5 which extend through slots 6 on the plate 2 on which the blades 1 are pivoted at 1a and through slots 7 in the blades. Three rollers 12 or balls are seated in recesses 11 in a brass ring 10 retaining the exciting coil 9 of the magnet 3 and engage inclines 14 in the armature so that energization of the magnet causes axial movement of the armature also to rotate J, opening the blades against the action of springs 8 secured between the blade-supporting plate and the pins 5, these springs closing the shutter when energization ceases. To allow the use of a heavy current for opening the shutter, the shutter opening may open a pair of contacts across a resistor in the energizing circuit so that the hold-on current is reduced.
Patent GB-795260-A (GB)
Title: An improvement in or relating to variable-speed gearboxes
Inventor: TAYLOR ALEC
IPC: F16H3/00
Filed: 1955-09-29
Abstract: 795,260. Change speed gear. BROWN & SONS (HUDDERSFIELD), Ltd., D. Oct. 25, 1956 [Sept. 29, 1955], No. 27696/55. Class 80 (2). In a change speed gear, two independent clutches i, j on concentric shafts c, f drive two layshafts a, b respectively to provide two independent power paths through toothed gears and toothed clutches t, u to an output shaft s. The arrangement shown provides three indirect ratios, a direct drive and by engagement of a gear v on shaft b with a gear e on shaft a, reverse.
Patent GB-1113647-A (GB)
Title: Scanning antenna
Inventor: WONG SAM HEM
IPC: H01Q3/22
Filed: 1966-06-21
Abstract: 1,113,647. Aerials; pulse radar. NORTH AMERICAN AVIATION Inc. 21 June, 1966 No. 27753/66. Beddings H4A and H4D. An aerial comprises a feedline waveguide 21 which is regularly folded to provide a plurality of parallel sections each provided with a linear array of radiating elements 10, 11, 12 &c. Power is supplied at one end 23 of the feedline waveguide 21, a terminating load 22 being connected at the other end, and as the frequency of the supply is varied dual-plane scanning is obtained, in planes which are respectively parallel and perpendicular to the arrays. The feedline waveguide may be a stripline waveguide or a hollow waveguide of rectangular cross-section and the radiating elements may be slots in a face thereof. The radiating sections of feedline waveguide and the sections connecting them may be co-planar (Fig. 3, not shown), or the latter may be looped beneath the former (Fig. 4, not shown). The spacing between the elements of each array may be made a whole number of waveguide half-wavelengths at the broadside frequency and the distance along the waveguide between corresponding elements of adjacent arrays may be made a larger whole number of those half-wavelengths. It is stated that adjacent arrays may be displaced axially, or may be arranged with different numbers of radiating elements, in order to suppress side lobes, effect beam shaping &c., and that the aerial is suitable for airborne applications. A mono-pulse system may comprise two or four of the aerials (Fig. 5, not shown). The aerials are connected to magic-T's (26), (27), which are in turn connected to other magic-T's (28), (29). Power from a variablefrequency transmitter is applied to a sum terminal of the magic-T (28), so that the aerials are fed in phase. Received signals are obtained at the difference terminals of the magic-T's (28), (29), and are indicative respectively of the azimuth and elevation of a target.
Patent GB-1444503-A (GB)
Title: Manufacture of a composite electrical conductor including a superconductive conductor consisting of anintermetallic superconductor compound
IPC: H01B13/00
Filed: 1974-06-21
Abstract: 1444503 Super-conducting composite material SIEMENS AG 21 June 1974 [22 June 1973] 27790/74 Heading C7 [Also in Divisions B3 and H1] A method of making a composite electrical conductor including a super-conductive conductor consisting of an intermetallic compound 4, of at least two elements, comprises providing a starting structure formed of a core 1 of a metal having good thermal and electrical conductivity when the intermetallic compound is super-conductive, an inner layer 2 of a ductile metal constituting one component of the compound, and an outer layer 3 of an alloy containing a ductile carrier metal and the or each remaining element of the compound, reducing the cross-section of the starting structure and heat-treating it to effect formation of the intermetallic compound 4. The core 1 is of Cu and is pushed into a tubular inner layer 2 of V, which in turn is pushed into a tubular outer layer 3 composed of alloy of Cu with 18% atomic of Ga. The starting structure is drawn or rolled to wire, which is then heated at 600-800C, preferably about 660C, for about 50 hours, thereby forming an intermetallic compound of V 3 Ga. When making a multi-core conductor, Fig. 3 (not shown), wire-form Cu cores (32) surrounded by inner layers (33) of V are arranged in a Cu-Ga matrix (31). Each coated core may be coated with a Cu-Ga outer layer, so that the outer layers combine during cross-section reducing, and additional Cu-Ga wires may be included if necessary. Alternatively a Cu-Ga matrix (31) may be formed with bores to received coated cores prior to being reduced. Composite conductors containing Nb 3 Sn as the intermetallic compound may be made by using a Cu-Sn outer layer and a Nb inner layer.
Patent GB-663456-A (GB)
Title: Improvements in and relating to the production of hydroxylamine monosulphonates or hydroxylaminesulphate from nitrites and bisulphites by reaction with sulphurdioxide
IPC: C01B21/082
Filed: 1949-10-31
Abstract: <PICT:0663456/III/1> The production of hydroxylaminemonosulphonates and hydroxylaminesulphate by the action of sulphur dioxide on a nitrite of an alkali or an alkaline earth metal or ammonium or a mixture of such nitrites and a bisulphite of an alkali or an alkaline earth metal or ammonium or a mixture of such bisulphites or a bisulphite produced by the action of the sulphur dioxide on a hydroxide or carbonate is characterized by the steps: (1) conducting cooled aqueous solutions of the nitrite and bisulphite or the compound for forming same countercurrent to a stream of gas containing sulphur dioxide, withdrawing and cooling a stream of reaction liquid, and recycling the withdrawn cooled stream countercurrent to the gas containing sulphur dioxide; (2) discontinuing introduction of new solution mixture and continuing recycling the liquid until the reaction is complete; (3) cutting off the feed of sulphur dioxide-containing gas and supplying an entraining gas, e.g., air, countercurrent to the reaction liquid to remove excess sulphur dioxide; and (4) hydrolysing the hydroxylaminedisulphonate in the liquid to hydroxylamine monosulphonate and/or hydroxylamine sulphate at above 5 DEG C. Nitrite and bisulphite solutions from 16, 17 are passed through cooler 15 and sprayed into insulated reactor 1 countercurrent to SO2 entering at 11, the solution supply being controlled so that the pH of the reaction liquid in step 1 is 4,3-7,5.  The liquid is recycled by pump 18 through cooler 19 maintained at -10 to -20 DEG C. and sprayed into reactor 1 at 8 so that the reactor temperature is not above 2 DEG C.  After the completion of step 2 when the pH is 3-4 air is introduced at 12, and the liquid is finally withdrawn to hydrolysis vessel 20.  An apparatus for continuous operation is also described where the separate steps are carried out in separate reactors.
Patent GB-868098-A (GB)
Title: Cylinder hone
IPC: B24B33/08
Filed: 1958-09-01
Abstract: 868,098. Honing. DEUSCHLE, F. Sept. 1, 1958 [Sept. 3, 1957], No. 27983/58. Class 60. A cylinder hone comprises a head consisting of at least three substantially coextensive wire legs, each leg being substantially equally spaced laterally from and being generally parallel to each of the other legs, and resilient bridges connecting adjacent ends of the legs in the order of the legs, supporting and rotating means for the head comprising a rotatable shank aligned with the axis of the head and means connecting the shank to the inner end of the first leg, and means for securing a strip of abrasive sheet material to the head. Spring wire is bent to form three parallel legs 14, 15, 16. The legs are slightly bowed outwardly, and the leg 16 has a doubled-over end 21 forming a clip to receive one end of a sheet 26 of flexible abrasive material which is wrapped round the legs, the hone being rotated in such direction as to keep the sheet in position. The wire is coiled to form a resilient shank 4 connected by brazing to a rod 1 which can be inserted in the chuck of a hand electric drill ; a ferrule 8 is fitted over the joint between the shank 4 and rod 1. In a modification, Figs. 7 and 8, four legs are provided.
Patent GB-159808-A (GB)
Title: Improvements in or relating to hockey and like athletic boots
IPC: A43B5/02
Filed: 1920-10-04
Abstract: 159,808. Shillcock, F. J. Oct. 4, 1920. Athletic boots.-A hockey or like boot is provided on one or both sides with an internal pocket adapted to receive one or more loose pads i, Fig. 4. The pocket is located between the upper e, Figs 1 and 4, and lining f, being closed on three sides by the toe cap seam a', a back seam e<2> and the welt g, while the edge of the lining f is furnished with eyelets f<1> registering with the usual eyelets e<1> in the upper, so as to be engaged by the boot lace.
Patent GB-612092-A (GB)
Title: An improved lifting jack for use in mines
IPC: E21B15/00
Filed: 1946-09-18
Abstract: 612,092. Lifting-jacks. LAKE SHORE MINES, Ltd. Sept. 18, 1946, No. 28050. Convention date, July 13. [Class 78 (iii)] A jack for use in mines comprises a load - engaging member 5 freely mounted on a column 2 which is raised by a nut 7 on a screw 3 of heattreated steel when this is rotated through gearing in a housing 4 actuated by means of a hand-crank placed on the end of a shaft 15. The latter is provided with a bevel gear 16 which meshes with a gear 8 keyed to the screw 3 and supported by ball bearings 13 on a seat 12 in the base 11 of the housing 4. Bushings 10, 14 are provided for engaging the screw 3 and shaft 15 respectively. The jack may be locked in any desired position by a forked member 19 pivotally mounted at 20 on the housing 4, the spacing of the forks corresponding to the size of the squared end 17 of the shaft 15 so that when the member 19 is in its lower position it prevents the shaft 15 from turning. The member 19 is held in its raised unlocking position by the operating handle when this is in position on the shaft. V-ridges 6, 9a are formed on the member 5 and base 11 J respectively.
Patent GB-225242-A (GB)
Title: Device for feeding internal combustion engines with a mixture of oil and acetylene
IPC: F02M1/00
Filed: 1924-11-24
Abstract: 225,242. Tinarelli, A., Cerri, G., and Belloni, E. Nov. 28, 1923, [Convention date]. Drawings to Specification. Spray carburettors.-A mixture of air and acetylene is added to the air oil mixture in the choke tube of a carburettor. According to the Specification as open to inspection under Sect. 91 (3) (a) the exhaust gases may be added to this mixture. This subjectmatter does not appear in the Specification as accepted.
Patent GB-333424-A (GB)
Title: Improvements relating to steering mechanism for automobile vehicles
IPC: B62D5/10
Filed: 1929-09-17
Abstract: 333,424. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Fitch, E. R.). Oct. 11, 1928, [Convention date]. Fluid-pressure steering - gear.- Comprises servo - motor steering- gear in which the steering hand-wheel 12 is fixed to a sleeve 13 coaxial with the steering shaft 11 and connected thereto through a lostmotion coupling 15, the sleeve being connected through gearing 16, 17 to valve mechanism controlling the supply of fluid to the device operating the steering-shaft. In the construction shown the valve is rotated by the gearing 16, 17 and the valve seat is rotated to give a follow-up motion by a pneumatic motor 23 which rotates the steering shaft and the valve seat through gearing 22, 21, 24. The lost-motion coupling comprises a pin 15 fixed to the shaft 11 and passing through slots in the sleeve 13 so as to allow a slight amount of relative rotary motion between the sleeve and the shaft. When the sleeve is rotated the valve 19 is turned and a port 25, Fig. 3, coincides with a, passage 26 in the seat, so that compressed air, which is admitted to the valve chamber through a pipe 27, can pass through the pipe 29 and drive the motor 23 as long as the sleeve 13 is rotated. When the sleeve stops the valve seat moves past the valve, the supply of air is cut off and the motor and the steering-shaft stop. If the sleeve is rotated in the other direction another port 25 (not shown) is made to coincide with a passage 31 and air passes to the motor through this passage and a pipe 32 and drives the motor in the opposite direction.
Patent GB-1108821-A (GB)
Title: An improved size mixing apparatus
Inventor: NORTON JACK
IPC: D06B23/20
Filed: 1965-07-02
Abstract: 1,108,821. Mixing apparatus. LEESONA Ltd. 5 Aug., 1966 [2 July, 1965], No. 28218/ 65. Heading B1C. An apparatus for mixing size for textile yarns comprises a mixing tank 11 into which concentrated size slurry is supplied by a ,pump 13 and metering valve 14, and water by a metering valve 16; the mixture is discharged by pump 23 into a stock tank 20. The size is thence circulated by a pump 27 to a size trough 25 in which a constant level is maintained by a weir 30. Consumption of size in the trough 25 causes fall of level in the tank 20 and the float switch 22 then starts the pump 23, the metering valves 14, 16 are actuated by high and low level electrodes 28, 29 in the mixing tank. The pump 23 is interlocked with the metering valves 14, 16 so that the mixing tank cannot be filled and discharged simultaneously in order to prevent supply of insufficiently mixed size to the tank 20.
Patent GB-170855-A (GB)
Title: Valve gear for reversing steam engines
IPC: F01L31/16
Filed: 1921-10-25
Abstract: 170,855. Caprotti, A. Oct. 25, 1920, [Convention date]. Cam gears.-A reversible, double-acting fluidpressure engine is provided with separate camoperated admission and exhaust valves I, S. The admission valves are operated conjointly by separately-adjustable cams C, C<1> which control the admission and cut-off respectively according to the direction of rotation. The cams C, C<1> are provided with rods B, B<1> which engage holes 0, O<1> in screwed sleeves M, M<1> which are mounted on a multiple, quick-pitch thread V, and are operated with lost motion by straps K, K<1> connected to cranks W, W<1> on a controlling and reversing shaft. The rods B, B<1> pass through slots P<1>, P in the sleeves M<1>, M respectively, and the rods B pass through slots in the cam C<1>. The slots permit adjustment. The exhaust cam D has lugs Z operated by lugs Z' on a shaft member Q, and a slot E in which extends the extensions of one each of the rods B, B<1>. During reversal, when the steam lead exceeds 27 per cent, the exhaust cam is operated and advanced by one or other of the rods B, B<1>. The cams C, C<1> engage rollers T, T<1> on bell-cranks mounted on one of the arms of larger bell-cranks G which operate the valves I. Additional arms L acted upon by a spring R are so arranged on the arms G that they balance the tendency of the rollers T, T' to rotate the cams C, C<1> owing to the lost-motion between the sleeves K, K<1> and their straps. The disengagement of these parts may also be impeded by providing them with interacting shoulders and recesses, and by the presence of lubricating oil which obstructs the entrance of air. The tendency of the exhaust cam to rotate backwards owing to the pressure of the rollers is balanced by a pump-operating cam D<1> in one therewith, Figs. 5 and 7, and having one or two projections to operate two or a single pump respectively.
Patent GB-1179479-A (GB)
Title: Derivatives of Thebaine
Inventor: LEWIS JOHN WILLIAM
IPC: C07D489/12
Filed: 1967-06-20
Abstract: 1,179,479. 6,14-Endoethenonorthebaine derivatives. RECKITT & SONS Ltd. 13 June, 1968 [20 June, 1967], No. 28357/67. Heading C2C. The invention comprises compounds of the Formula I:- wherein R<SP>1</SP> represents a cyano or ethoxy carbonyl group; R<SP>2</SP> represents a C 1-3  alkyl, acetoxy or ethoxycarbonyl group or a chlorine or bromine atom with the proviso that when R<SP>2</SP> represents a C 1-3  alkyl group, R<SP>1</SP> represents a cyano group and when R<SP>2</SP> represents an acetoxy group, R<SP>1</SP> represents an ethoxycarbonyl group; and R<SP>3</SP> represents a hydrogen atom or C 1-8  alkyl, C 2-8  alkenyl or C 2-8  alkynyl group or a C 4-7  alicyclic substituted methyl group; and pharmaceutically acceptable salts thereof and their preparation; where R<SP>3</SP> represents other than a hydrogen atom, by reacting the appropriately N-substituted northebaine with a dienophile of the formula CH 2  = CR<SP>1</SP>R<SP>3</SP>, where R<SP>3</SP> represents a hydrogen atom, by treating a compound of the Formula I wherein R<SP>3</SP> represents a methyl group with a di-(C 1-4  alkyl) azodicarboxylate followed by treatment with a mineral acid, and where R<SP>3</SP> represents neither a hydrogen atom nor a methyl group, by reacting a compound of the Formula I wherein R<SP>3</SP> represents a hydrogen atom with a halide of the formula R<SP>3</SP>X where X represents a halogen atom and optionally converting any product into an acid addition salt thereof. Therapeutic compositions with analgesic, sedative and antitussive activity and depressant effects on the peripheral autonomic nerve function, for oral administration, comprise compounds of the invention with a carrier.
Patent GB-335364-A (GB)
Title: An improved gas burning water heater
IPC: F24H1/00
Filed: 1929-09-18
Abstract: 335,364. Starkie, H. Nov. 13, 1928, [Convention date]. Vertical boilers.- In a gas-fired water heater comprising an enclosure for a thin film of water surrounding a tapering vertical flue 11 which communicates with an annular chamber between the boiler and the outer casing 10, the boiler and the outer casing are carried by a, metal base frame comprising a lower plate 1 in which the burner is positioned and a surmounting annular wall 3 formed at the top with an outwardly projecting flange 4 connected by distance bolts 5 with the lower plate. The flange 4 is formed with two upwardly projecting rings 8, 9 the latter of which is a split ring to enable each when closed with a clamping bolt to grip the water container and the outer casing respectively. A helically shaped pipe coil 23 may be disposed within the flue 11 connected to the water container at top and bottom. The flow of water is regulated by a valve 15 which is of the plug type 24, Figs. 4 and 5, having a groove 25 extending only a part of the way round its periphery and of a width and depth increasing from nothing at one end to its maximum at the other.
Patent GB-603663-A (GB)
Title: Improvements relating to coin counting machines
IPC: G07D9/00
Filed: 1945-10-26
Abstract: 603,663. Counting-apparatus. RAND, L. A., and INTERNATIONAL COIN COUNTING MACHINE CO., Ltd. Oct. 26, 1945, No. 28393. [Class 106 (i)] A machine for determining the total value of a batch of coins of mixed kinds comprises an inclined rotary upper plate 3 on which the batch is placed, the plate having holes 6 smaller than twice the diameter of the smallest coin so that the coins are picked up one at a time and then pass through a hole 10 in a fixed plate 5 into spaces between teeth 7 on a lower rotary plate 4. The coins while retained by the fixed plate 5 and a back plate 11 are pushed by the teeth 7 on the lower rotary plate 4 past a counter-actuating lever 9 to rock this lever an amount depending upon the diameter of the coin and finally the coins fall through a discharge aperture 18. The actuating lever 9 has a pin 12 which engages a cam 17 on a lever 13 carrying the counter-actuating ratchet 14. The machine can be adapted for a different system of coinage by changing the cam 17. The counting action is stopped when the total reaches a desired value by the engagement of a pin 22 on a disc 21 geared to the counter and operating a trip 24 to allow a member 25 to obstruct the aperture 10 in the fixed plate 5. The trip 24 is reset by a hand lever 26.
Patent GB-364015-A (GB)
Title: Improvements in silencers for internal combustion engines
IPC: B02C17/02
Filed: 1930-09-23
Abstract: 364,015. Fluid actuated valves. PIERON, H., Biemenhorst, near Bocholt, Westphalia, Germany. Sept. 23, 1930, No. 28424. Convention date, Sept. 23, 1929. [Class 135.] A spring - controlled tubular valve c for automatically controlling the exhaust of a silencer is operated by the mean pressure existing in the exhaust chamber and not by individual blasts of exhaust. The exhaust chamber a has a tubular socket b within which the tubular valve c slides, with s o m e clearance, both h being closed at their inner ends. The socket and valve have outlet ports d, d<1>, and the socket has additional ports f which allow exhaust to enter and pass between valve and socket and act upon the lower face of the valve. The valve is loaded by a spring e pressing against a plate h secured to uprights i by bayonet joints, and a pin k prevents rotation of the valve. Packing devices may be interposed between valve and socket.
Patent GB-155100-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/39
Filed: 1919-11-18
Abstract: 155,100. Reijnhout, J. P. Nov. 18, 1919. Sparking-plugs.-The terminals are coated with an alloy of gold and silver either by immersion in the molten alloy, or, preferably, by galvanic action.
Patent GB-1293802-A (GB)
Title: Improved conducting element for printed circuit and method of making same
IPC: H05K3/38
Filed: 1969-09-30
Abstract: 1293802 Printed circuits CLEVITE CORP 30 Sept 1969 [3 Oct 1968] 28686/72 Divided out of 1293801 Heading H1R [Also in Division C7]  The subject-matter disclosed is the same as that of Specification 1293801, but the claims are directed to the composite metal structure to serve as the conductor element of a printed circuit, and methods of making same.