baber/WOPTO huggingface dataset:
Patent GB-548369-A (GB)
Title: Improvements in or connected with force transmission mechanism for dynamometers
IPC: G01L3/16
Filed: 1941-05-17
Abstract: 548,369. Dynamometers. ASHWORTH, ROSS & CO., Ltd., and MILLS, R. A. May 17, 1941, No. 6373. [Class 106 (ii)] A force transmission mechanism for dynamometers comprises a dual lever mechanism located in a common housing and capable of independent coupling to the torque arm and an externally operated change-over device whereby the torque load transmitted through one or the other mechanism can be ascertained on one or other of two separate load indicating devices. The initial part of the two lever systems is substantially identical with that described in Specification 548,368 and includes a torque plate 3, Figs. 1 and 2, secured to a yoke 4 which is linked to an equal armed lever 5 and an intermediate lever 6 fulcrummed on a pedestal bearing 7. In accordance with the invention the load transmitted can either be received by a lever 11 or by a lever 13 connected by bearing links 10, 12 to the intermediate lever 6. The levers 11, 13 are connected by corresponding connecting rods 16, 17, to appropriate indicating devices (not shown). The selection of one or other lever 11, 13 for transmission of movement is effected by a control lever 18 on a shaft 19. In the position shown in Fig. 1 a cam 21 on the shaft 19 has raised the fulcrum of the lever 11 to render it effective whila an interconnected cam 22 has lowered the fulcrum of the lever 13 so that stops 13c thereon rest on angle brackets 26 to render the lever 13 ineffective. In the alternative position of the control lever the lever 13 will be freed and the lever 11 arrested.
Patent GB-325703-A (GB)
Title: Door fastening
IPC: E05C7/06
Filed: 1929-02-27
Abstract: 325,703. Busch, H. Feb. 27, 1929. Double-door fastenings; catches yielding to pull or pressure.-In a fastening for double doors in which a spring-pressed sliding member f on one door engages a fixed member g and is prevented from disengagement while the second door is closed by the end k of the member f abutting against a metal plate m on the edge of the second door, the said member f, as shown in Fig. 3, has a knob e with two surfaces which as the door is opened or closed slide past the fixed pin g. Alternatively, as shown in Fig. 4, the member f has two end faces f<1> which slide into a fixed hook g<1>. The end k is adjustable.
Patent GB-154499-A (GB)
Title: Improved means in connection with carburettors for electrically heating the induction charge for internal combustion engines
IPC: F02M1/00
Filed: 1920-03-03
Abstract: 154,499. Ames, R. H. March 3, 1920. Spray carburettors.-There is provided within an enlargement 3 of a carburettor casing a hollow electrically-heated valve 2 in the shape of a sphere or cone which is adjusted vertically to throttle the gas passage 4 by a screwed tube 5 and handle 8, the needle fuel valve 9, which passes upwards through the valve 2 and tube 5, being independently adjusted by a handle 15. Air enters by passage 21 round the fuel nozzle 10 and through apertures 33 controlled by a sleeve 16 rotated by a stud 18. The end of the needle valve is guided in the fuel nozzle by a fluted piston 22. The handles 8, 15, 18 may be connected to concentric rods for simultaneous operation. The exterior of the valve 2 may have heat-radiating ribs 24.
Patent GB-1427355-A (GB)
Title: Closed television network with an open television system and a closed television system
IPC: H04N7/16
Filed: 1973-02-09
Abstract: 1427355 Television distribution ATHENA COMMUNICATIONS CORP 9 Feb 1973 [10 Feb 1972] 6521/73 Heading H4R In the distribution of broadcast and subscription TV signals, the suscription signals are made intelligible at receivers by switching in a converter which is enabled by means individual to the receiver at a central location. In the central location a master switch 28 and a programmed (e.g. time controlled) switch 30 apply power to a bank of units 19, one for each receiver. Closure of switch 27 illuminates lamp 25 and operates relay 51 to prepare circuits at the receiver and light standby lamp 59. The subscription programmes may be transmitted from a videotape having a spare track to control switch 30 and generate preview or informative material before a programme acceptance pause. The subscriber may press button 65 to operate self-holding relays 61, 62 which indicate and possibly record 26 programme acceptance at the central location, apply A.C. power to the converter 85 and change over switch contacts 81-84 to connect the converter between the receiver and the network 16, 17. The converter may be a frequency shifter or carrier modulator.
Patent GB-729684-A (GB)
Title: Improvements in or relating to bolts
IPC: E05B55/00
Filed: 1953-03-10
Abstract: 729,684. Door locks. MEFINA SOC. ANON. March 10, 1953 [May 20, 1952], No. 6546/53. Class 44. A door lock comprises a bevelled bolt 3 formed with a cylindrical tail 8 and guided for sliding movement in struck-up projections of a base plate 2 adapted to be screwed to the face of a door. A removable pivot pin 10 connects the tail 8 to a channel form link 9 which is biassed by a spring 11 into contact with a pin 33 on a follower 12 of a cylindrical lock 13, and also into contact with pins 31, 32 on an operating knob 16 mounted to revolve in a casing 17. The bolt can be withdrawn against the action of the spring 11 by turning the cylinder lock clockwise, Fig. 2, so that a projection 34 on the follower 12 engages a lug 38 on link 9. The same action is produced by turning the knob 16, when a corresponding projection (not shown) engages the lug 38. If, however, the cylinder lock or the knob are turned anticlockwise, Fig. 2, the link 9 is raised and moved to the left by spring 11 until a projection 41 comes to rest between pins 31, 32, thus locking the bolt in the projected position. The bolt may be held in the retracted position by the engagement of a spring pressed plunger 42 eccentrically mounted in the knob 16, engaging a hole in the casing. The " hand " of the lock may be changed by removing the casing and pivot pin 10, when the bolt may be withdrawn and reversed before replacement. In a modification, Figs. 4, 5, (not shown) for a dead bolt, the bolt is positively held in each of three positions by notches in the link 9 engaging pins. In a further modification, Fig. 6, (not shown), the knob 16 is dispensed with, only the pins 31, 32 on the inside of the casing remaining.
Patent GB-563675-A (GB)
Title: Improvements in the manufacture of "waisted" or elastic bolts and studs
IPC: F16B31/04
Filed: 1943-04-24
Abstract: 563,675. Making bolts. NEWALL, A. P. April 24, 1943, No. 6598. [Class 83 (ii)] In the manufacture of waisted or elastic bolts or studs, the shank is extruded cold to reduce the diameter from that of the part 11 to that of 10b and part of the shank is 'cold worked to form the further reduced section 10a. The shank is heat treated after either or both of the cold working operations and a screw-thread is rolled on the part 10b. Specifications 557,960 and 559,838 are referred to.
Patent GB-1098243-A (GB)
Title: Preparation of solutions of hydroxylamine and hydroxamic acids
IPC: C07D207/16
Filed: 1965-02-16
Abstract: An anhydrous alcoholic solution of hydroxylamine is prepared by reacting, with cooling, a salt of hydroxylamine with a solution of a lithium alcoholate in anhydrous alcohol.ALSO:Hydroxamic acids are prepared by reacting, whilst cooling, a solution of an amino-acid ester in an anhydrous alcohol with an anhydrous alcoholic solution of hydroxylamine which latter solution has been prepared by reacting, whilst cooling, a salt of hydroxylamine with a solution of a lithium alcoholate in an anhydrous alcohol. a -Amino - g  - bromo - butyro - hydroxamic acid may be cyclised to 1-hydroxy-3-amino-pyrrolidone-2.
Patent GB-197113-A (GB)
Title: Improvements relating to controllers for electrically operated cranes, hoists and the like
IPC: B66C13/54
Filed: 1922-03-07
Abstract: 197,113. Languish, N. G., and Metropolitan-Vickers Electrical Co., Ltd. March 7, 1922. Regenerative systems.-Motors which operate hoists and have their resistances connected after the manner of potentiometer or diverter resistances so as to provide regenerative braking during the lowering operation, are protected against excessive currents by a resistance 6, additional to the starting resistance 3, which is automatically switched in series with the motor armature 1 by the action of a coil 19 whenever the regenerated current exceeds a limit. In a modified arrangement, a relay connected. to a controller finger which is in circuit when the controller drum is on the lowering side, puts in a coil for switching in the resistance under similar conditions. The connections may be further modified so that the protective resistance is operative during both lowering and hoisting.
Patent GB-202609-A (GB)
Title: Electric time switch
IPC: G04C23/24
Filed: 1923-03-08
Abstract: 202,609. Landis & Gyr Akt.-Ges. Aug. 17, 1922, [Convention date]. Switches, quick-action; clockwork actuation.-In a modified construction of the switch described in Specification 185,751, a single locking and tripping member is used and is provided with two flats co-operating with a onea.rmed locking member. The locking and tripping member is in the form of a shaft 24, pivoted in the bracket c and provided with flats 25, 26 and striker arms 19, 20, which are engaged by levers 2 on a disc 1. The locking member 9<1> which co-operates with the flats, is mounted on a shaft 23 rigid on which are a hub 8 and contact arm 30. The clockwork drives the pinion 6', loose on the shaft 23, to rotate the disc 1 and tension the spring 14. When an arm 2 engages the striker arm 20, the shaft 24 is rotated to present the flat 25 to the member 9<1>, thus releasing it and allowing the spring to rotate the shaft 23 a halfturn and actuate the switch. The member 9' is held up by the shaft 24 until the flat 26 releases it.
Patent GB-566041-A (GB)
Title: Improvements in or relating to gyroscopic control apparatus for air and other craft
IPC: G05D1/00
Filed: 1943-04-30
Abstract: 566,041. Fluid-pressure servomotorcontrol systems. BROWN, J. P. April 30, 1943, No. 6824. [Class 135] A gyroscopic directional control apparatus in which the rotor casing is turned by a fluid pressure servomotor when the craft yaws from its course has a second servomotor for actuating the rudder, the control valves of which are actuated by a floating lever connected on the one hand to the movable casing and on the other hand, through a lever fitted with a delayaction device and elastic link, with a lever operated by the second servomotor. The rotor A of the gyroscope is mounted in a casing D carried by a shaft D<2> rotatably mounted in a boss E<1> on a base-plate E and is rotated by an oil turbine housed in a casing C<2> acting through a ball B engaging, with slipping fluid friction, a socket in the rotor. An arm A<1> carried by the rotor engages a light fork F on a bifurcated member G carried by a rod adapted to actuate control valves in a casing H. When the craft yaws the members B<1>, A<1> move out of alignment to actuate the valves in the casing H to admit fluid pressure from a conduit H<1> to a power cylinder J. Rods attached to the piston in this cylinder are joined by a D-shaped member K carrying a rack K<1> engaging teeth on the boss E<1> so that as the piston moves the casing D is rotated in the direction to re-align the members A<1>, B<1>. The rudder is operated by a power cylinder N, Fig. 4, controlled by valves in a casing N<2> actuated by a lever N<3> linked to the mid-point of a floating lever Q. One end of this lever carries a pin R held in a notch in a disc R<1> secured to the spindle D<2> by a spring Q<2> passed round a pulley R<2> on the spindle. The other end of the floating lever is coupled by a link L<8> with the shorter arm L<7> of a bell-crank lever L<1> the longer arm of which is elastically connected by a link P with a lever O in turn connected to the rudder. The elastic connection comprises springs P<4>, P<4>a arranged between fixed abutments P<5> on the link P and abutments slidably mounted on the link and co-operating with -a collar on a rod slidably mounted in a socket adjustably secured to the lever. The lever L<1> carries a toothed sector L<2> engaging a pinion M on the spindle of a fan wheel M<2> with paddles of substantial mass rotatable in a drum M<3> containing liquid. In place of a fan wheel the retarding device may comprise a fly-wheel. Specification 427,422, [Group XX] is referred to.
Patent GB-291543-A (GB)
Title: Improved process for the production of coke in shaped or briquette form and apparatus therefor
IPC: C10L5/02
Filed: 1927-03-11
Abstract: 291,543. Synthetic Ammonia & Nitrates, Ltd., and Humphrey. H. A. March 11, 1927. Coking processes; retorts.-In a process of carbonizing fuel and making briquettes, powdered fuel is preheated in an uncompressed state and, on nearing the coking temperature is forced by pressure through a container where coking occurs and the coke takes up the shape of the container which may contain a grid for dividing up the coked mass. Slack is fed from a hopper 1 through a rotary heated drum 3 to a collector 5 from which the fuel is fed by a ram 7 and compressed in a tube 6 in which is a grid 8 which divides it longitudinally into rods. These rods are cooled in an extension 9 and are cut into sections by a knife 20. Producer gas is burned in a chamber 18 with air, preheated in jacket 11 surrounding the coke cooling chamber and the hot gases pass through a jacket 13 in counter flow to the coke and then through a jacket 15 enclosing the drum 3. The high temperature parts of the apparatus are made of alloy steel. Superheated steam may be passed in counterflow through the coke.
Patent GB-232930-A (GB)
Title: Improved process for the production of iron from ores
IPC: C21B13/00
Filed: 1925-03-13
Abstract: Iron having a low sulphur content is prepared by smelting iron with slag producing materials containing a large proportion of alumina to form a calcium aluminate slag containing from 30 to 50 per cent alumina, the rest being chiefly lime, and having a silica content below 10 per cent.  Bauxite in lump form, diaspore or other material containing aluminium oxide together with limestone in small lumps, finely divided iron ore, coke and anthracite fines are smelted together in an electric or other furnace. Ferruginous bauxite is preferably used, in which case the iron present is reduced.  Alumina may be recovered by leaching the crushed slag with warm sodium carbonate solution and precipitating the alumina by carbon dioxide or other means, excess silica having first been removed by means such as autoclaving the solution with lime.  The soda solution may be used to work up a fresh quantity of alumina.
Patent GB-823911-A (GB)
Title: Phonograph reproducer
IPC: H04R9/16
Filed: 1958-03-04
Abstract: 823,911. Gramophone pick-ups. WESTREX CORPORATION. March 4, 1958 [Dec. 10, 1957], No. 6929/58. Class 40 (4). A pick-up for use with a record having two signals in the one groove comprises two coils 9, 10 each pivoted at the inner side and having the outer side movable in an air gap 7, 8. The coils are square and the movable sides are connected to the stylus through wires 30 which transmit longitudinal movement but are flexible laterally. The stylus is mounted on a tube 22, Fig. 2, mounted as a cantilever from a rigid support 27. The tube resists rotational movement but moves freely laterally. U.S.A. Specification 2,114,471 is referred to.
Patent GB-330279-A (GB)
Title: Improvements in or relating to confection coating machines
IPC: A23G3/22
Filed: 1929-03-04
Abstract: 330,279. Greer, F. W. March 4, 1929, Coating confectioners' goods. - A coating- machine having thermostatically controlled means for regulating the temperature of the falling s.ream of coating material, is characterized by the sensitive element of the thermostat being positioned in the falling steam. As shown in Figs. 1 and 4, the cores are carried through the machine on a pervious web 13 and the coating material is held back to apply it to all parts of the cores, by rollers 30 driven at a slightly greater speed than the web 13 to scrape the surface thereof and free it from hardened coating- materials. The sensitive element 29 is placed between the rollers 30 and controls, in known manner, the supply of compressed air from the pipe 44 to actuate diaphragm valves 41, 43, which respectively regulate the supply of water and steam to the heating jackets of the machine. The element 29 and the air relay are provided with a graduated disc 50 with a pointer 51 adjustable to the desired temperature setting. The temperature of the jackets may, however, be varied by hand-actuated steam and water valves, and a gas burner may be arranged beneath the jacket of the main reservoir to assist in maintaining the desired temperature. The coating material is raised from the main reservoir to the discharge receptacle 21 by a helical conveyer in a vertical conduit 19. The conveyer scrapes the walls of the conduit, and prevents the accumulation of hardened coating-material. The receptacle 21 has slots 24 in its bottom which are continuously scraped and kept clear by a revolving worm 25, which also scrapes the end walls of the receptacle. The capacity of the helical conveyer may be varied by altering the gear wheels 62, 63.
Patent GB-622370-A (GB)
Title: Improvements relating to windshield cleaners
IPC: B60S1/38
Filed: 1947-03-13
Abstract: 622,370. Windscreen - cleaners. TRICO PRODUCTS CORPORATION. March 13, 1947, No. 7069. Convention date, March 15, 1946. [Class 138(i)] The blade 14 of a windscreen-cleaner is formed of rubber or rubber-like material and provided on at least its wiping edge with a pliable coating 20 of non-absorbent material or plastic material. The blade 14 comprises a series of plies 15, 16, of which the central ply 15 projects for engagement with the screen. A coating 20 of plastic material having a low co-efficient of friction is applied over the central ply 15 and, if desired, over each ply 16. Pyroxlin or the material known under the Registered Trade Mark " Tenite " may be used for the coating 20 which may be applied by spraying.
Patent GB-1092125-A (GB)
Title: A coincident electromagnetic switching arrangement
IPC: H03K19/02
Filed: 1965-02-18
Abstract: 1,092,125. Electric selectors. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 18, 1965 [Feb. 18, 1964], No. 7134/65. Heading H1L. [Also in Division H2] Two or more sealed magnetic reed contact units, actuated by coincident pulses through their operating windings, are retained actuated by a magnetic circuit which includes one or more permanent magnets and the contact units in series. The contacts may be released by a reverse pulse through any one of the operating windings, so that by thereby opening one pair of contacts, the magnetic circuit is sufficiently weakened for all the other contacts to release. Pairs of such contact units may be arranged at the cross-points of a co-ordinate array for selective operation. In this case they may be released by a common auxiliary winding, several of which, associated with different cross-points of the selector, may be connected for simultaneous energization.
Patent GB-870798-A (GB)
Title: Improvements in or relating to sling nets
Inventor: FRENCH ROGER
IPC: A47C7/22
Filed: 1958-03-06
Abstract: 870,798. Seats; beds &c. FRENCH & SONS Ltd., THOMAS. Feb. 25, 1959 [March 6, 1958], No. 7183/58. Classes 52(2) and 52(4) [Also in Groups VIII, IX, and XXX] In the construction of hammocks, campbeds upholstery reinforcements and deck and other chair seats, there may be used two-ply woven webbing (Group IX) having relatively stiff bound ply portions b and intermediate relatively flexible separated portions a along its length, the length of the portions a being slightly less than their width and the slightly greater width of the portions b. In a net formed by interthreading lengths of the webbing, a portion a of one length lies and is slightly bunched within a portion a of a crossing length through which it is threaded, with the end of a portion b immediately against each of its edges, the stiffness of the portions b on each side of the bunched portion resisting entry of the ends thereof between the separated plies. Nylon is preferably used.
Patent GB-1045923-A (GB)
Title: Improvements in or relating to moving object detection systems
Inventor: WALKER PHILIP HULME
IPC: G08B13/16
Filed: 1964-02-20
Abstract: 1,045,923. Detecting objects by ultrasonic vibrations. DECCA Ltd. May 19, 1965 [Feb. 20, 1964], No. 7200/64. Heading H4D. [Also in Division G4] In a self-contained, battery-operated system for detecting moving objects, e.g. an intruder, an electrical signal indicative of the presence of a moving object is derived from a circuit responsive to the difference of frequency or phase between a transmitted ultrasonic signal and the signal received after reflection from the object, and is transmitted to a remote point to operate an audible or visual alarm. In the embodiment of Fig. 2 (not shown), cylindrical piezo-electric transmitting and receiving transducers 11, 12, respectively, are mounted one above the other, with their axes vertical, in a cylindrical housing 40 which also constitutes a baffle between them. A detection region is defined by the overlap of the transmission and reception beams, which are of relatively narrow beam width in the vertical plane (Fig. 3, not shown). A 70 kc/s. continuous wave oscillator 10 (Fig. 1) drives transducer 11, and the phase difference between the transmitted and received ultrasonic signals is detected by a detector 14 which may be of the type disclosed in Specification 1,004,615. Low frequency variations in the phase difference, due to movement of an object in the detection region, are detected by circuits 15, 16, 17, and passed to a logic circuit 18 which discriminates against short-duration variations which would give rise to false alarms. An alarm signal is transmitted to the remote point by a radio transmitter 19 whose aerial 20 may form part of the cylindrical housing 40. Operation of the system may be inhibited, for servicing or setting up the apparatus, by switching off oscillator 10 by means of a time switch or by means of a coded radio signal transmitted from the remote point and received by a receiver 22. The beam width of transducers 11 and 12 may be restricted in the horizontal plane when the apparatus is used near a large solid object, e.g. a wall.
Patent GB-1451066-A (GB)
Title: Lighting units
IPC: F21V9/40
Filed: 1973-02-14
Abstract: 1451066 Lamps ASSOCIATED ENG Ltd 14 Feb 1974 [14 Feb 1973] 7329/73 Heading F4R A lamp unit comprises a housing, a light source surrounded by a reflector within the housing, and a light transmitting member disposed in or over the mouth of the housing, the member including a light modulating cell in the form of two transparent sheets with a thin layer of a liquid therebetween which scatters light when the cell is subjected to an electric field above a critical value but does not scatter light otherwise, each sheet having on its inner surface a transparent electrically conductive coating in contact with the liquid to act as an electrode. At least one of the electrodes may be in the form of a plurality of zones which can be separately energized. The liquid layer, which may be 0À05 mm. thick, may consist of nematic liquid crystal material and the electrodes, the zones of which may be separated by a gap of 0À01 inch, may consist of tin oxide. The lamp unit may be a floodlamp, searchlight or vehicle spotlight but is preferably a vehicle headlamp designed to be dimmed progressively according to a predetermined sequence either manually or under the control of a photodetector energized by the lamps of an oncoming vehicle.