baber/WOPTO huggingface dataset:
Patent GB-630455-A (GB)
Title: Improvements in dynamo-electric machines
IPC: H04R23/00
Filed: 1947-05-20
Abstract: 630,455. High - frequency machines. PLEBANSKI, J. May 20, 1947, No. 13571. Convention date, Nov. 20, 1946. [Class 35] The stator or rotor of a dynamo-electric machine has a pair of electrically-coupled quadrature windings connected to sources of high-frequency currents of slightly different frequencies, the machine running at a speed dependent on the beat frequency. The device is described as a motor, but it is stated that it may also act as a generator. In a freely rotatable form shown, the stator carries windings 1-1 and 2-2 fed with frequencies Vo - f and Vo + f respectively, the circuits being joined by a mutual inductance or capacitance M or by mutual inductance between the windings. The resultant flux is stated to rotate at a speed equal to half the beat frequency. The rotor may be of squirrelcage form so as to rotate asynchronously or it may carry a winding 3 externally energized, as shown, by a supply of frequency Vo so that it rotates synchronously at half the beat frequency. Alternatively, the rotor winding may be connected to a condenser producing resonance at the frequency Vo. The machines may be air or iron cored and it is stated that the speed and rotation can be changed by altering the beat frequency. A speed control circuit for a motor comprising a pair of oscillators with differentially ganged tuning is described. Alternatively, the side-bands of a modulated carrier can be used. An arrangement is also described in which a large beat-frequency motor is fed from a pair of alternators whose speed is differentially controlled. In an oscillating form, the machine is only permitted limited rotation under the control of springs and may be used to energize loud-speakers or microphones from an amplitude, phase or frequency modulated signal.
Patent GB-163210-A (GB)
Title: Improvements in and relating to a process of making hydrogen and zinc oxide
IPC: C01B3/06
Filed: 1920-05-17
Abstract: Zinc oxide and hydrogen are prepared by the decomposition of water-vapour by means of zinc wholly in the vapour phase. Carbon-free metallic zinc is vaporized from a furnace and is treated with excess of water vapour which is preferably superheated.  The excess of water vapour acting as an inert diluent causes the zinc oxide to be deposited on cooling in a finely-divided condition suitable for paintmaking.  Preferably the mixture, after reaction is cooled in two stages; firstly to a temperature somewhat above 100 DEG  C. to deposit the zinc oxide which is collected by filtering through bags and secondly to a lower temperature to remove water.  Diluents other than water vapour may be employed, nitrogen being particularly suitable when the hydrogen is to used in the synthesis of ammonia. Specifications 5478/80 and 933/14 are referred to.
Patent GB-146691-A (GB)
Title: Apparatus for indicating and recording side drift or leeway of aircraft
IPC: G01P5/02
Filed: 1919-05-29
Abstract: 146,691. Tripp, W. H., and Wilkins, C. E. W. May 29, 1919. Measuring-apparatus.-Apparatus for indicating the velocity of drift of aircraft and also the total leeway made comprises an exposed vane 1 mounted, with its plane parallel to the longitudinal axis of the aircraft, on a rod 2 passing through an arm 3 pivoted to arms 4, 4', which are pivoted at 5, 5<1> and carry counterweights 6, 6'. The vane 1 is deflected by transverse air currents, and the resulting motion of the arms 4, 4' is resisted by a cantilever spring 7 mounted between abutments 9, 9<1>, so shaped as to vary the effective length of the spring as it becomes deflected so that the deflection of the spring is proportional to the transverse wind speed. An air dash-pot 10 having a leakage valve 12 is connected by a link 11 to the arm 4', which also has a slot 14, in which works a pin 13 on an arm 15 constrained to move horizontally by slots 16 and pins 17. The arm 15 carries two pawls 19, 19' adapted to operate opposed ratchets 20, 20' secured to a rack 21 engaging with a pinion 25. A pin 27 on the pinion 25 engages a slot 28 in an horizontally movable member 29 having a forked extension 30, to which is secured a pointer 34 moving over a scale 35, Fig. 6, to indicate the velocity of drift. The fork 30 engages in a groove 36, Fig. 10, on the boss 37 of a friction wheel 38 mounted on a squared shaft 39, which is driven at a constant speed by clockwork &c. The wheel 38 drives a pair of cones 43, 43' mounted on parallel shafts 44, 44', to which are secured bevel-wheels 47, 47' driving the members 48, 48' of a differential gear, the spindle 50 of which is secured to a shaft 51 carrying a pointer 52, which thus indicates, in conjunction with a dial 53, the total leeway made. In order that the pointers may not cease to indicate when the velocity of drift has become equal to the transverse velocity of the wind, i.e. when vane 1 has returned to its central position, the ratchets 20, 20<1> are provided with shields 24, 24<1> to prevent the pawls from operating during the return of the arm 15 to its central position.
Patent GB-680699-A (GB)
Title: Improvements in or relating to metal casting processes
IPC: B22D35/04
Filed: 1951-06-08
Abstract: 680,699. Moulding processes; moulds; mould materials. FORD MOTOR CO., Ltd. June 8, 1951 [June 23, 1950], No. 13685/51. Class 83 (i). A perforated gate plate, for use in a mould, is made by applying moulding material to a plate 20 having one or more holes h, which correspond to the desired gate holes, allowing said material to fall through, striking of the layer material on the plate 20 and curing it. The plate 17 so formed has truncated conical holes c, the angle of which corresponds to the angle of repose of the uncured mould material. This may comprise an oil-bound mix or sand mixed with 5 to 10 per cent of uncured formaldehyde resin. Before applying the material, the plate 20 may be preheated to 300‹ F. and dipped quickly into a parting emulsion which may contain a silicone compound. This partially cures the mould material, curing being completed by further heating. The plate 17 is shown in Fig. 3 used with a runner plate 23 and a shell mould s, made by the method described in Fiat report No. 1168, dated 30th May, 1947, for casting a number of valves by bottom pouring, the holes c having their larger section downwards. The mould has a runner cup 24 fitted to a sprue pipe 12 and the box 21 is filled with sand, shot, &c. before pouring, e.g. electric furnace stainless steel.
Patent GB-387996-A (GB)
Title: A process for reinforcing knitted garments
IPC: A41B9/00
Filed: 1931-05-09
Abstract: 387,996. Wearing apparel. VILAXOVA SUBIRANA & CO., J., 24 San Carlos, Igualada, Barcelona, Spain. May 9, 1931, No. 13791. Convention date, May 9, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 141.] Knitted garments are provided with reinforced parts which are produced during the knitting operation.
Patent GB-372559-A (GB)
Title: Improvements in absorption refrigerating machines
IPC: F25B15/10
Filed: 1931-05-09
Abstract: 372,559. Refrigerating. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 9, 1931, No. 13806. Convention date, May 27, 1930. [Class 29.] Absorption machines and systems.-In a continuously-acting machine of the kind in which evaporation and absorption of the refrigerant take place at opposing surfaces of a common chamber containing an inert gas, e.g. air, the chamber 13 is adapted to surround three sides of a refrigerator 20 and provided with a partition 27 which permits free circulation of the inert gas and refrigerant vapour. Refrigerant vapour, together with entrained weak absorption liquor, flows from the generators 1, 2, 3 to separators 4, 5, 6 from which the vapour passes to condensers 7, 8, 9, while the weak liquor passes through pipes 10, 11, 12 to a perforate gutter 17 around the upper part of the absorption surface of the chamber. The condensate flows through pipes 22, 23, 24 to a perforate gutter 21 around the evaporation surface from which the evolved vapour diffuses into the inert gas and is absorbed by the weak liquor at the opposite surface. The strong liquor returns through the pipes 28 .. 31 to the generators. As shown, the top, base, and door 16 of the refrigerator are lined with solid insulation. In the apparatus described above, the pressure difference between the condenser and the evaporator is balanced by the pressure of the inert gas. In a modification, this pressure difference is only partly equalized by the inert gas, the balance being supplied by a column' of liquid refrigerant.
Patent GB-593534-A (GB)
Title: Improvement in dual release mechanism for parachute packs
IPC: B64D17/52
Filed: 1945-06-01
Abstract: 593,534. Parachutes. CLEVELAND, F. J. (Pioneer Parachute Co., Inc.). June 1, 1945, No. 13841. [Class 4] Dual release mechanism for a parachute pack comprises a manually-operable cable 16 and a cable 18 connected to a static line 24. The cable 18 carries pins 26, 28, 30 and 32 which engage grummets 10 attached to pack flaps 6 and holes in locking cones 8 carried by pack flaps 4. The cable 16 is formed with a loop 40, which embraces the pin 26, so that pins 26-32 may be withdrawn either by a pull on the cable 18 or by pulling the cable 16 to engage the loop 40 with the crotch between the pin 26 and the cable 18.
Patent GB-396191-A (GB)
Title: Electrodeposition of metal alloys
IPC: C25D5/18
Filed: 1932-05-13
Abstract: In the electrodeposition of an alloy, an anode containing 500 parts gold, 425 parts copper, and 75 parts nickel is employed.
Patent GB-184856-A (GB)
Title: Improvements in or relating to loose leaf binders, letter files and similar articles
IPC: B42F13/26
Filed: 1921-05-17
Abstract: 184,856. Straker, A. E., Straker, L. V., and Straker, T. A., (trading as Rayward Bros.), and McClymont, S. J. May 17, 1921. Post files; locks.-Relates to loose-leaf binders of the kind comprising mating arched prongs one of which is movable relatively to the other and is adapted to be locked in the closed position by a reciprocating locking-bolt. According to the invention, the movable prong or prongs D are capable of movement independently of the locking-bolt H, and are formed by bending a rod or stout wire which is pivoted in bearings F on the baseplate, and is provided with a projection E<1> engaged by the locking- bolt in the closed position. The stationary prong or prongs B are also constructed of stout wire and provided with a projection C<1> to facilitate securing them to the base-plate. The locking-bolt has a spring portion J<1> adapted to bear on a transverse member G in the locked position, preventing complete withdrawal of the locking-bolt by abutting against the transverse guidemember I. A top cover is provided and is slotted for the passage of the projection E<1>, prongs D and locking-bolt.
Patent GB-112136-A (GB)
Title: Improvements relating to Telegraph or Telephone Sets, particularly applicable to Portable or Field Sets.
Inventor: CORK FREDERICK LAWRENCE
IPC: H04M19/04
Filed: 1916-09-30
Abstract: 112,136. Cork, F. L. Sept. 30, 1916. Telephone systems and apparatus; telegraph and telephone calling-apparatus-In a portable telegraph and telephone set having a magneto for calling purposes, the magneto is provided with two windings and operates as an induction coil during the telegraphing and telephoning periods. In the arrangement shown, the magneto is provided with a primary winding p, a secondary windings, and a switch j, in the circuit of the primary winding p, the armature of which is attracted by the magneto armature when the winding of the latter is cutting the maximum lines of force. A switch m, operated by the magneto spindle n', occupies the position in which it is shown during the non-calling period, and when calling it moves to the right to break the signalling circuits and to establish the circuit of the primary winding p for calling. An electro-magnetic interrupter f is connected in series with the signalling key c, and a switch k is connected in series with the microphone c.
Patent GB-1219085-A (GB)
Title: Improvements in or relating to fluid operated control valves
Inventor: MALTWOOD BRIAN EDWARD
IPC: E03C1/05
Filed: 1967-03-28
Abstract: 1,219,085. Telemotor systems. BARKING BRASSWARE CO. Ltd. June 28, 1968 [March 28, 1967], No. 13972/67. Heading F1P. [Also in Division F2] A fluid-operated valve between an inlet 2 and an outlet 3 has a main valve closure member 11 which is formed on a diaphragm 9 separating chambers 8a, 8b apart from restricted openings 9a and which co-operates with a seat 7. A pilot valve having a closure 12 biased by a spring 16 into engagement with an opening 10 in the member 11 is opened by fluid-pressure in passage 4 acting on diaphragm 17 to vent chamber 8b so that the diaphragm 9 moves upwards to open the main valve. The fluid-pressure in passage 4 is supplied by a hydraulic telemotor having an operating piston 34 which is pressed by hand or foot to pressurize fluid within itself, radial passage 46 in spring guide 41, passage 44 and passage 45 connected to passage 4. In a modification wherein the fluid-pressure in passage 4 is applied by a pneumatic telemotor a one-way fluid topping-up valve is also connected to passage 4.
Patent GB-898450-A (GB)
Title: Improvements in or relating to pumps
Inventor: MATTINSON JOHN
IPC: F16N13/04
Filed: 1958-05-02
Abstract: 898,450. Reciprocating pumps. COULTHARD & CO. Ltd., WILLIAM. Jan. 21, 1959 [May 2, 1958], No. 13991/58. Class 102(1). Plungers 12 are actuated by cams 13 through levers 14. The stroke of each plunger is presetrelative to the other plungers by an adjusting screw 18 which engages a rod 17 which in turn engages the lever 14. The screw 18 is threaded in a beam 20 common to all the adjusting screws and movable by means of a handle 26 to adjust the output of all the plungers simultaneously. The plungers may be hand actuated by the handle 26 or the rods 17. In a modification the common stroke varying device comprises a camshaft.
Patent GB-471791-A (GB)
Title: Improvements in apparatus for dressing abrading wheels
IPC: B24B53/00
Filed: 1936-02-05
Abstract: 471,791. Trueing grinding - wheels. NORTON CO. Feb. 5, 1936, No. 14040 /37. Convention date, Feb. 6, 1935. Divided out of 471,802. [Class 60] In a lapping-machine for treating cylindrical work, and comprising two conical laps 50, 55 mounted on skewed axes so that the workpieces are fed automatically along guides 158, a device is provided for trueing the laps, comprising an abrading-wheel 277 provided with a toric periphery and movable along the line of the guides 158 over the surface of the laps with its plane vertical; a device also is provided for dressing the wheel 277 so that the radius of curvature of the periphery in radial planes is equal to that of the work-pieces. The wheel 277 is carried by a head 268 adjustable by a screw 272 on a plate 265 carried by a carriage 213 which is movable on ways 211, 212 on a bed plate 206 angularly adjustable about a trunnion 205 carried by an apron 125 supported on the base 20 of the machine. The carriage 213 is moved by the engagement of a pinion 218, Fig. 3, thereon with a rack 217 on the bed 206, the pinion being driven in either direction by bevel gearing 222... 224, Fig. 4, and a sliding clutch sleeve 228 from a shaft 225 driven through belt and worm gearing by an electric motor 260 mounted on the carriage 213 ; the clutch sleeve may be moved by a lever 235, automatic operation being brought about by dogs 245, 246 at the ends of the bed 206 and a detent device 240 .. 243 serving to hold the lever 235 normally with the clutch in neutral position, or if required in extreme positions to ensure automatic reciprocation of the carriage 213. In operation, the cones 50, 55 are separated, the surface of each being trued separately by movement of the wheel 277 therealong. The periphery of the wheel 277 is trimmed to the required toric form by a diamond tool 211, Fig. 5, mounted in a slide 326 movable axially in a bore 327 in a quadrant arm 320 by a screw 333 and locked by a set screw 334, which engages an inclined flattened part 326 of the slide. The arm 320 is pivoted, by means of a spindle 313 in a boss 311 on a slide 306 movable bv a screw 307 on a member 295, which is removably mounted on a stud projecting from a collar 291 clamped by bolts 292 on a part 290 of the head 268. Before trimming the wheel, the diamond point is set to the required radius with respect to the axis of the spindle 313 by inserting a gauge-piece having the diameter of the work-pieces in a tapered bore 343 in the arm 320, and adjusting the diamond just to touch the gauge-piece : the gauge-piece is then removed and the wheel is trimmed by oscillation of the quadrant, by means of a handle 344 about the spindle 313. The wheel 277 is driven by the motor 260 through a belt 279 provided with a tensioning pulley 281 pressed by a spring.
Patent GB-1390886-A (GB)
Title: Gear-box control device for automotive vehicles
IPC: F16H61/34
Filed: 1973-03-23
Abstract: 1390886 Variable ratio gearing CHRYSLER FRANCE 23 March 1973 [17 April 1972] 14168/73 Heading F2D A gear lever 1 for controlling ratio change in a gear-box 3 is mounted at vehicle floor 7 level (e.g. via a ball-and-socket 15) on a beam 4 having at each end a resilient hinge (e.g. a pin passing through a resilient bush in a pair of eyes in the beam) one 8 connecting the beam to the gear-box 3 casing, the other (e.g. via a link 12, Fig. 5 (not shown), having a resilient hinge at each end) to the vehicle floor. Linkages, Fig. 4, between a rod 20 pivoted to the lever 1 and a rod 28 in the gear-box 3 is also described and comprises two separate linkages. One linkage converts rotation of the rod 20 into axial movement of the rod 28 for gear selection via an arm 30 on the rod 20, a link 31, a bell crank 35 mounted on the gear-box at 36. The other linkage converts axial movement of the rod 20 into rotation of the rod 28 for gear engagement via, a bell-crank 22 pivoted on the beam 4, a link 25 pivoted at 26 to an arm (27), Fig. 2 (not shown), on the rod 28.
Patent GB-581965-A (GB)
Title: Improvements in or relating to depth charge throwers
IPC: F41F7/00
Filed: 1940-09-17
Abstract: 581,965. Depth - charge throwers. THORNYCROFT & CO., Ltd., J. I., and THORNYCROFT, SIR J. E. Sept. 17, 1940, No. 14279. [Classes 9 (i), 9 (ii) and 92 (ii)] Relates to a gun of the mortar type for throwing a depth-charge 7, the barrel 1 being provided with a captive piston 3, the rod 4 of which extends through the closed muzzle end of the barrel and is provided with a cradle 6 for detachably supporting the depth - charge. According to the invention, excessive rebound of the piston at the end of its forward stroke is prevented by venting the air compressed in front of the piston by means, such as a pipe 12, which passes air from front to back of the piston. The gun gases from the known firing- device 10 may be vented through passages 8 uncovered by the piston. The depth-charge is attached by straps 13 to the cradle 6, a retaining detent 15 being automatically released to free the charge after a predetermined movement of the piston.
Patent GB-942686-A (GB)
Title: Improvements in and relating to the treatment of liquor e.g. beer
Inventor: HOBSON ALAN GEORGE
IPC: C12H1/04
Filed: 1961-04-20
Abstract: <PICT:0942686/C3/1> A method of fining liquor, e.g. beer, comprises agitating the liquor with a mixture of a granular solid, e.g. sand or metal such as stainless steel granules, diatomaceous earth and polyamide particles, preferably of a size between 0.1 and 2.5 m , in a vessel having an unperforated retaining bottom, the agitation subsequently being discontinued and the granular solid allowed to settle on a gauze screen 5 located above the vessel bottom, to form a porous bed 17, the liquor then being drained off through an outlet pipe 3, the diatomaceous earth and the polyamide particles being retained at 18 on the porous bed.  The vessel is provided with a series of injectors 7 for injecting an inert gas into or through the filted bed, with a mechanical rake 9 which can be rotated and moved up and down, and with fixed baffles 11, all of which components assist agitation.  A further inlet 14 for compressed gas, a vent 15, a pressure gauge 16 and an outlet 13 for spent earth/polyamide particle mixture are provided. When a batch of liquor has been treated, the polyamide can be regenerated by breaking up the granular solid and diatomaceous earth/polyamide beds, agitating the mixture and treating the mixture with regenerating solution, e.g. dilute caustic soda.  Specification 867,613 is referred to.
Patent GB-378111-A (GB)
Title: Improvements in and relating to the transmission and reproduction of pictures, events and the like
IPC: H04N7/18
Filed: 1931-05-14
Abstract: 378,111. Television. ASPDEN, R. L., 6, Southport Road, Chorley, Lancashire. May 14, 1931, No. 14320. [Class 40 (iii).] In an apparatus for the transmission and reproduction of pictures, events &c., e.g. of gun positions, disposition of ships, &c. involving the production of an intermediate record, a lens system a that serves for view-finding purposes in conjunction with a mirror f and screen e is associated, when the mirror f has been displaced, with a Nipkow disc b, photo cell c, and amplifier g whereby a magnetic record of the scene may be made by a recorder h upon the edge of a disc, preferably the scanning disc b itself. At the completion of one revolution of the disc, the recording means are disconnected and during the succeeding revolutions the recorder h functions as a pick-up for wireless transmission of the scene by set i and aerial j. At the receiving station the signals energize a recorder m which produces a multiple record upon a wire spiral o<1> wound on a rotary drum o. To reconstruct the view upon a screen r the position of a switch s is reversed and the recorder m, now acting as a pick-up, passes the signals through amplifier t to a neon lamp or Kerr cell u operating in association with a Nipkow disc q and lens v. In order to revolve the disc q at the correct speed and thus obviate any external synchronization of the transmitting and receiving sets, the shaft o<2> of the drum o and the shaft q<1> of disc q are interconnected as described in Specification 365,632 by a variable-speed gear located in a casing p and controlled by a handle p<1>, while correct phase adjustment may be obtained by adjusting a bar n, along which the recorder m slides, in a semicircular slot n<1> in a bar (not shown). The disc b and wire o<1> may be demagnetized and used again, while, in view of the fact that the transmission may be effected on any wavelength and for any length of time, jamming may be circumvented.
Patent GB-496245-A (GB)
Title: Improvements in colour development and colour forming developers
IPC: G03C7/34
Filed: 1937-05-24
Abstract: 496,245. Colour photography. KODAK, Ltd. (Eastman Kodak Co.) May 24, 1937. No. 14345. [Class 98 (ii)] A colour-forming developer comprises an aromatic amino developing agent and 2: 6- di-(o-hydroxybenzyl)-cyclohexanone or a substitution derivative as a colour former. The developing agents may be mono-, di-, or triamino aryl compounds, such as aminophenols and aminocresols and their halogen substituted derivatives, aminonaphthols, p-phenylenediamine, alkylphenylenediamines such as diethyl - p - phenylehediamine, monomethyl -pphenylenediamine, dimethyl-p-phenylenediamine and o-aminodiethylaniline, toluylenediamines, alkyltoluylenediamines, and aminodiphenylamines, including the hydrochlorides and sulphates. An example of a suitable developing formula including the colour formers is given. The colours formed are shades of blue to blue-green. The colour formers may also be incorporated in the emulsion before or after exposure, and may be adsorbed upon the silver halide grains. The emulsion may be on films, plates, or paper, and gelatine or other colloid may be employed in the emulsion. Material comprising several differently sensitized emulsions on one or both sides of the support or comprising emulsions of the mixed grain type may be used. The dyes formed may be decolourized by an oxidizing agent such as chromic acid. Specifications 427,472, 427,516, 427,518, 427,520, 440,032, 440,089, and 447,092 are referred to.