baber/WOPTO huggingface dataset:
Patent GB-718409-A (GB)
Title: Improvements in or relating to valves closing with excess fluid flow
Inventor: GARRETSON OWEN LOREN
IPC: G05D7/01
Filed: 1952-08-14
Abstract: 718,409. Fluid-actuated valves. PHILLIPS PETROLEUM CO. Aug. 14, 1952, No. 20455/52. Class 135  In a valve closing with excess fluid flow, valve actuating mechanism for seating the valve independently of the flow comprises a rod threaded through the casing and having a swivel or resilient connection with the valve. Compressed fluid within a casing 7 passes through ports 9 to an outlet 8. Excess fluid flow, e.g. due to conduit breakage, moves a valve 12 and holds it on a seat 11 against a spring 15 or weighted lever. The valve will reopen when pressure at the outlet 8 is built up via orifice 13 in the valve. Should the excess flow be insufficient to close the valve, it is closed by turning a screw 20 carrying a swivel 22 connected by a chain 23 to the valve. In another embodiment, the spring 15 loads the valve for closing against a spring-loaded sleeve carried by the screw 20. The valve contains no orifice and can be opened or closed by turning the screw.
Patent GB-1511417-A (GB)
Title: Motor overspeed switching mechanism
IPC: G05D13/04
Filed: 1976-05-18
Abstract: 1511417 Magnetic switches CANADIAN GENERAL ELECTRIC CO Ltd 18 May 1976 [5 June 1975] 20475/76 Heading H1N A motor overspeed switching mechanism comprises an electric switch 15 operated by an actuating mechanism 16 linked with a drag mechanism 18 supported for limited movement through interaction with an electrically conductive disc 11 turned by the motor, the drag mechanism 18 being held magnetically by a toothed holding mechanism 13, 14, until the speed of the disc 11 exceeds a preset speed when it s released to operate the switch. The drag mechanism comprises two permanent magnets positioned on either side of and linked magnetically with the disc, and is rotatable about a pivot 19. The holding mechanism comprises a number of teeth 33, 34, 35 projecting out of a part 13 of the drag mechanism in an arcuate array, two of them 33, 35 separated by a third 34, co-operating with polepieces 40, 41, of a fixed permanent magnet structure 14. Shunts are provided with this holding mechanism to adjust the flux and thus the holding force threshold. The drag mechanism is reset manually. All permanent magnets are temperature compensated. The switch actuating mechanism 16 has symmetrical switch actuating surfaces 58 and 60 operating on a switch plunger 57 and the mechanism is thus independent of the direction of operation of the disc and thus of the motor. A special shunt for the fixed permanent magnet structure is provided for testing the operation of the switching mechanism.
Patent GB-819402-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1957-06-28
Abstract: 819,402. Refrigerating. ELECTROLUX Ltd. June 28, 1957 [July 7, 1956], No. 20489/57. Class 29 To prevent noise caused by e.g. the bubbling of vapour through liquid in an analyzer 12, the vapour bubbles are comminuted by passage through a permeable material 22. As shown, this consists of a gauze cylinder placed so that bubbles caused by the entry of vapour under pressure through pipe 19 from the expeller pass radially through the gauze before reaching the surface of the liquid in the analyzer. Apertures 24 are provided below the outlet of pipe 19 so that, should the gauze be blocked the vapour reaches the surface of the liquid at a higher pressure than normal. The device may be fitted at the inlet of the refrigerant vapour pump into the standpipe or expeller.
Patent GB-1093256-A (GB)
Title: Improvements in air conditioning apparatus
Inventor: SUTCLIFFE HARVEY BENJAMIN
IPC: F24F1/0373
Filed: 1964-05-19
Abstract: 1,093,256. Air conditioning units. AIR SYSTEMS Ltd. May 17, 1965 [May 19, 1964], No. 20529/64. Heading F4V. [Also in Division F1] Air drawn in through inlet 14 is either cooled (by means not shown) or heated by heater 38 and blown by an impeller 16 into a room via a silencer 20. Means (not shown) for controlling the humidity of the air discharged may be provided.
Patent GB-202820-A (GB)
Title: Improvements in repeating rifles
IPC: F41A3/66
Filed: 1922-07-27
Abstract: 202,820. B.S.A. Guns, Ltd., and Norman, G. July 27, 1922. Breech actions, sliding breech-block; trigger guards; barrels; stocks.-The sides 2 and lower part 3, Fig. 3, of the breech-body, the trigger guard 10, and the shoe 4, with attachment tangs 5 for the stock, are formed in one piece, and the barrel, Fig. 5, is formed with an extension 13 which forms the bolt-way and the top cover for the breech-body. To attach the barrel to the frame, a lug 20 at the front of the frame fits in a recess 19 in the barrel and lugs 21 on the barrel extension enter recesses 22 in the breechframe and are secured by a cross screw 23, Fig. 6. One of the lugs 21 is slotted to slip over a reduced part 27 of the screw when assembling and disassembling.
Patent GB-584986-A (GB)
Title: Improvements in jars and like containers
IPC: B65D83/00
Filed: 1945-10-22
Abstract: 584,986. Jars and like containers. WAKEHAM, C. E. Oct. 22, 1945, No. 20543/44. [Classes 66 and 125 (i)] A container for dispensing two different granular materials, adapted to stand in two alternative positions, has a sloping partition 21 which divides the container into two like compartments 22A, 22B, at the narrow end of each of which is an outlet controlled by a dispensing device. The container has a tubular body 20 of thin metal having circular, octagonal &c. cross-section. The dispensing devices consist of spouts 23A, 23B having axes parallel to the floor 21. Each spout has a rotatable cap 26 with a part-circular aperture 28 which can be brought into register with a similar aperture 25 in an inner transverse wall 24. The ends of the container are closed by flanged caps 29A, 29B retained by bayonet-catch grooves 30 engaged by projections 31 on the outside of the body.
Patent GB-721041-A (GB)
Title: Improvements in and relating to apparatus for use in frequency responsive electricalremote control systems
IPC: H04Q1/45
Filed: 1948-08-05
Abstract: 721,041. Exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd., HOLLOWAY, D. G., and FELIX, M. O. July 29, 1949 [Aug. 5, 1948], No. 20737/48. Class 40 (4). In a transmission system in which signalling is effected by substituting a frequency f2 for a normally present frequency f1, a receiver comprises a limiter 10 feeding circuits 12 and 22 tuned to f1 and f2 respectively whose outputs are rectified at 14 and 23 respectively to produce oppositely poled outputs. These outputs feed a circuit 15, 16, 28 which thereupon provides the valve 20 with a voltage substantially equal to the peak-to-peak value of the rectified voltages, the valve being biased so as to respond only to voltages substantially in excess of that produced by the one rectifier 14 acting alone. Conduction of the valve 20 operates the signalling relay 21. Discrimination against speech currents is effected through (a) the action of the limiter whose tuned circuits cannot produce a sufficiently large output unless the tones received are substantially pure, (b) the improbability of the frequency f2 occurring immediately after f1, and (c) the fact that the frequency f1 must be of sufficient duration to charge condenser 28.
Patent GB-1497572-A (GB)
Title: Electrical switches
IPC: H01H50/04
Filed: 1975-05-16
Abstract: 1497572 Electrical switches ALLENBRADLEY CO 16 May 1975 [12 Jan 1974] 20813/75 Heading H1N A contact cartridge attached to an electrical switch comprises a cam 44 which is coupled to the actuator of the switch and which is slidably mounted in the cartridge for motion in a direction parallel to the direction of motion of the actuator, and a cam follower 50 which is contained in the cartridge in engagement with the surfaces 47, 48 of the cam and operable to pivot and move in a direction perpendicular to the direction of motion of the actuator to open or close co-operating movable 58 and fixed 59 contacts of the cartridge. The contact cartridge is attached to the body of the electrical switch by tabs and spring clips which fit in and snap into respective recesses in the switch body, Fig. 4, not shown. The contacts in the cartridge may be auxiliary contacts and the electrical switch may be an electromagnetic contactor. In a further embodiment the cartridge is a double cartridge wherein a second cam follower 67 causes operation of a second set of movable 78 and fixed 74 contacts.
Patent GB-721923-A (GB)
Title: Improvements in or relating to the construction of reservoirs and containers
IPC: E04H7/18
Filed: 1952-08-20
Abstract: 721,923. Silos. DOANIDES, P. J. Aug. 20, 1952 [April 29, 1952], No. 20866/52. Class 20(1). [Also in Group XXIX] A silo is constructed by erecting pre-cast concrete vertical wall elements 1 along the outer perimeter thereof and spaced at small distances apart, filling the spaces with concrete 2 cast in situ, banding the outer surface with circumferential or helical tensioned steel rods, bands, cables or wires 7, and finally covering the banding with an outer layer of rendering 8. The elements 1 may have steel reinforcing 3 which may protrude from the sides thereof to secure the concrete 2, and the latter may be applied by the vacuum process. The silo may be circular, elliptical, square or rectangular in plan, may comprise one or more lifts of such elements, and may have a smooth interior and a smooth or ribbed exterior. The foundation may comprise a reinforced concrete annulus 4 rebated to seat the elements 1, a sectional floor 5 and asphaltic sealing 6.
Patent GB-319860-A (GB)
Title: Improvements in or relating to the manufacture of sulphur dyestuffs
IPC: C09B49/10
Filed: 1928-07-18
Abstract: 319,860. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). July 18, 1928. Sulphur dyes.-The process for the manufacture of sulphur dyestuffs by heating a suitable starting material with a polysulphide is carried out in the presence of a hydroxy-hydroaromatic compound, for example, cyclohexanol and its homologues, ac-1- and ac-2-hydroxy-tetrahydronaphthalene, ac-1- and ac-2-hydroxy-decahydronaphthalene. These substances act as solvents for the polysulphide and, in many cases, for the components to be sulphurized, and sulphurization at a relatively high temperature may be effected. in a substantially shorter time to yield purer dyestuffs. The process is particularly suitable when the starting materials are indophenols ortheir leuco derivatives. The solvent may berecovered by filtration, distillation &c. The process is applied in examples to the polysulphide fusion of 3-(4<1>-hydroxyphenyl)aminocarbazole (Specification 18822/09), the leuco indophenol prepared from 1-p-tolylaminonaphthalene-8-sulphonic acid and p-aminophenol (Specification 11863/04), 3-methyl-4-amino-4<1>-hydroxy-diphenylamine (Specification 58/02), and 4-phenylamino- 4<1> - hydroxy - diphenylamine (Specification 16823/02).
Patent GB-481258-A (GB)
Title: Improvements in or relating to water cooling towers
IPC: E04H5/12
Filed: 1937-07-28
Abstract: 481,258. Cooling towers. MOUCHEL & PARTNERS, Ltd., L. G., and GUERITTE, A. T. J. July 28, 1937, No. 20904. Drawings to Specification. [Class 29] The curved wall of a cooling - tower, particularly one of hyperboloidal shape, is made of layers of brickwork alternating with layers or belts of reinforced concrete having projections or recesses at intervals and keyed to the brickwork. The base and cornice of the tower are of reinforced concrete as in the brickwork tower described in Specification 343,289.
Patent GB-1306184-A (GB)
IPC: C01B7/03
Filed: 1971-04-19
Abstract: 1306184 Chlorine WENDELL E DUNN Inc 19 April 1971 [9 Feb 1970] 21000/71 Heading C1A Gaseous chlorine is prepared by heating an alkali metal tetra-chloroferrate with a free oxygen-containing gas at a temperature from 400‹ to 650‹ C.; the alkali metal terra-chloroferrate having been prepared by heating, at a temperature of up to 310‹ C., a mixture of an alkali metal chloride with a water-containing ferric chloride which is either a hydrated ferric chloride of the formula FeCl 3 .nH 2 O (n is 0À5 to 6), or an aqueous solution of ferric chloride or a mixture of hydrated ferric chloride and hydrochloric acid.
Patent GB-1008377-A (GB)
Title: Improvements in or relating to radar directional antenna systems
IPC: H01Q3/18
Filed: 1963-05-27
Abstract: 1,008,377. Linkwork. ALBISWERK ZURICH A.G. May 27, 1963 [May 25, 1962], No. 21013/63. Heading F2K. [Also in Division H4] In a directional aerial for a radar system comprising a radiator and an associated reflector formed as a figure of revolution, separate drive means are provided for rotating and reciprocating the radiator and a coupler is provided to select either drive so that the aerial beam executes a conical scan or scans in a plane. The radiator is both pivoted and fed from a waveguide at a ball-joint 2 and is extended mechanically to a guide pin 3. On the guide pin slides a coupling piece 4 which is fitted at one end with a conical nose 13 and at the other with a bead 18, each capable of respective engagement in cones 12 and 17. One cone, 12, is rotated eccentrically by a motor 9 whilst the other, 17, is reciprocated by a link 16 containing a slot in which engages an eccentric pin driven by another motor 14. A third motor 8 drives the coupler 4 through a lost-motion coupling 7 and a rack-and-pinion 5, 6 to select the required radiator movement.
Patent GB-404376-A (GB)
Title: Improvements in or relating to wireless receiving apparatus and the like
IPC: H03D11/02
Filed: 1932-07-26
Abstract: 404,376. Valve circuits. CROYSDALE, J., and WRIGHT, S. R., 12, Lees Road, Bramhall, Cheshire. July 26, 1932, No. 21017. [Class 40 (v).] A super-regenerative receiver is coupled to a further valve V2 so that reception of C.W. signals causes increase of current in plate circuit of the valve V2 and actuationofrelay ER. The output valve V1 of the super-regenerative receiver has a choke L1 and condenser C1 in its plate circuit, a condenser C2 and resistance R1 coupling the valve V1 to valve V2. When no signal is received, the quenching frequency in the choke L1 imposes a grid-bias voltage sufficient to render valve V2 non conducting, but on reception of C.W. signals or a carrier wave the quenching frequency is stated to diminish, so that valve V2 becomes conducting and relay ER closes.
Patent GB-460232-A (GB)
Title: Improvements in or relating to the production of stiffened fabrics and articles made thereof
IPC: D06M17/02
Filed: 1935-07-24
Abstract: 460,232. Compound fabrics. BRITISH CELANESE, Ltd. July 24, 1935, No. 21027. Convention date, Aug. 2, 1934. [Class 140] A stiffened compound fabric suitable for wearing-apparel, e.g. for collars, cuffs, and fronts of shirts, hats, and parts thereof, and garment linings, is made by uniting under heat and pressure the components of an assembly comprising two or more layers of fabric consisting substantially of a non-thermoplastic textile material and an intermediate layer of fabric that consists substantially of a non-thermoplastic textile material and has been impregnated or coated with cellulose acetate or other thermoplastic cellulose derivative and allowed to dry. The cellulose derivative may be applied as a solution with or without a plasticizer such as dimethyl or diethyl phthalate or dibutyl tartrate. The fabrics may be woven, knitted, or netted from cotton, linen, reconstituted cellulose, wool, silk &c. and may contain thermoplastic cellulose derivative yarns. For example, two layers of cotton or linen fabric may be united by an intermediate cotton fabric treated with cellulose acetate. The fabric layers may be cut to shape, and the assembled fabrics sewn to 'form the garment, before hotpressing. A volatile solvent or latent solvent such as acetone, ethyl lactate, formal glycerol, ethyl and/or methyl alcohol, or methyl glycol, preferably diluted with water, may be present during hot-pressing. The latent solvent, e.g. aqueous alcohol may contain a plasticizer in solution. The pressure surfaces or rollers, one or both of which may be heated, may be embossed with designs, stripes, dots, &c. to give local adhesion. The Specification as open to inspection under Sect. 91 states that the coated or impregnated fabric need not be completely dried before union, and that the cellulose derivative may be applied as a finely divided powder, with, if desired, a plasticizer. This subject-matter does not appear in the Specification as accepted.
Patent GB-877030-A (GB)
Title: Improvements in or relating to burner devices
IPC: F23D11/44
Filed: 1958-07-01
Abstract: 877,030. Vapour burners. PHILIPS' GLOEILAMPENFABRIEKEN N.V. July 1, 1958 [July 3, 1957], No. 21037/58. Class 75(1). An oil burner device comprising an oil container 13 connected by a supply pipe 2 to a plurality of vaporizers 1 each connected with the aid of a valve, a nozzle 3 and a mixing tube 6 to a main burner 7, is provided with an auxiliary burner 10 for heating the vaporizers 1, having a vaporiser 8 of its own and connected to the oil container 13 by a separate pipe 12. The burner 10 extends below vaporizer fins 15 mounted on the tubes 1, 8 adjacent the nozzles 3. In use, the vaporizer 8 is first preheated by fuel, e.g. methylated spirit, burning in a shallow container 14. More than one auxiliary burner may be provided.
Patent GB-386257-A (GB)
Title: Improvements in and relating to inking apparatus for platen printing presses
IPC: B41F1/52
Filed: 1932-07-26
Abstract: 386,257. Printing-machines. SCHNELLPRESSENFABRIK AKT.-GES. HEIDELBERG, Heidelberg, Baden, Germany. July 26, 1932, No. 21124. Convention date, June 4. [Class 100 (ii).] Inking-apparatus.-In a platen press in which spring-controlled inking rollers are carried by swinging frames which carry them over the forme from and to an ink-supply cylinder, one or more additional springs, which are operative only when the rollers are out of contact with the ink cylinder, are provided to press the bearer rollers carried by the inking rollers, firmly into contact with their guide rails. The inking rollers 9 are carried by bars 10 slidably mounted in a pair of frames 12 mounted on pivots 11 and actuated by a crank 21 to swing the rollers up and down over the forme 2 from and to the inking cylinder 8. The bars 10 carry springs 15 for pressing the rollers 9 against the cylinder 8 and one or both of the bars is provided with a spring 26, which, after the passage of the rollers 9 from the cylinder 8, are compressed against the end of the frames 12 to cause the bearer rollers 24 on the rollers 9 to press firmly against the guide rails 25 arranged at the sides of the forme 2.
Patent GB-243467-A (GB)
Title: Improvements in lamps for illuminating motor vehicle dashboards and for like purposes
IPC: B60Q3/04
Filed: 1924-09-08
Abstract: 243,467. McGregor, D. Sept. 8, 1924. Light reflected by trough-shaped reflectors.- The lamp bulb of a dashboard &c. lamp is mounted in a casing 2, Fig. 3, longitudinally movable in a sleeve 4 on the dashboard or other support, so that the casing can be pulled out when required, the lamp bulb being switched off or on according as the casing is moved inwards or out wards. In one form the casing 2 has a longitudinal slot at one side and is closed at its rear end by an insulated cap member 8<a> secured thereto by a bayonet fastening. The electric leads 20, 19 for the lamp bulb are secured to terminals 21, 18 on a wing-nut 7 for securing the sleeve 4, one terminal 21 being electrically connected through the wing-nut 7, a sleeve 4, and a casing 2 with the forward contact of the lamp, whilst the other terminal 18, which is insulated from the wing-nut, has a contact-piece 15, which contacts, when the casing 2 is pulled out, with a washer 14 connected through a pin 13 and a spiral spring 12 with the other rear contact of the lamp. A C-shaped spring 24 within the casing is provided with a stud passing through a hole in the casing into contact with the sleeve to ensure electric contact. In a second form, a spring plate 29, Fig. 6, connected to one of the electric terminals 32, 36 on the insulating-cap 33 at the rear of the casing carries an insulating- pin 30 projecting through a hole in the casing, so that, when the casing is moved inwards, contact between the spring and the casing is broken. The second electric terminal 36 is connected to a coiled spring 37 forming a resilient support for the inner end of the lamp bulb. The casing may be completely withdrawn from the sleeve to enable the lamp to be used for inspection purposes, the flexible conducting leads being unwound from a spring or other drum 42 at the rear of the dashboard. In a modification, the arm carrying the insulating-pin is connected with the forward lamp contact, and a contact-arm connected with one of the terminals engages the inner surface of the casing.
Patent GB-570100-A (GB)
Title: Improvements in or relating to boring heads
IPC: B23B29/034
Filed: 1943-12-20
Abstract: 570,100. Boring-heads. CREED, A. B. Dec. 20, 1943, No. 21329. [Class 83 (iii)] In a boring-head the mounting-member for the cutter is angularly adjustable about an axis extending transversely with respect to the axis of the head. The body 1 has a shank 2 and a domed lower end provided with a crossslot in which a block 4 is pivoted, preferably about trunnions 5 mounted in the body by means of removable caps 11. Teeth are formed on the edge 6 of the block concentric with the trunnions and engage a worm 7 mounted in a transverse bore in the body, retained by a screw plug 9, and rotated by a key passed through a hole in the body at the end 8. A transverse screw 13 locks the block after adjustment, the extent of which may be indicated by graduations. The bore 15 for the cutter extends beyond the axis of the trunnions. In a modification, the block 25, Fig. 8, is sector shaped, has teeth 27 engaging an internally-threaded and externally-knurled adjusting ring 28, and is pivoted about a transverse pin 26. Conical surfaces on the ring 28 engage corresponding surfaces 23, 30 in the end of the body and a locking ring 31 respectively.
Patent GB-621466-A (GB)
Title: Improvements in and relating to electric timing circuits, particularly for resistance welding
IPC: B23K11/24
Filed: 1944-11-01
Abstract: 621,466. Control systems for resistance welding and the like. BRITISH THOMSON HOUSTON CO., Ltd. Nov. 1, 1944, No. 21366. Convention date, Nov. 1, 1943. [Class 38 (iv)] An electric circuit interconnecting an A.C. supply 12 and a load circuit 13, e.g. a welding transformer, includes two valves 10, 11, each having a control member 16, which is energized with a periodic peaked voltage to render the valves conductive, and means responsive to the load voltage for delaying the application of the peaked voltage until the anode voltage of the valve which is to conduct next becomes positive. The valves 10, 11 are reversely connected in parallel and are rendered non-conducting by the resultant of the peaked secondary voltage of transformer 23 and the secondary voltage of transformer 21, but are rendered conducting- when transformer 19 whose secondary is in phase opposition to that of 21 is energized by timing circuit 25. The transformer 23 is supplied from a phaseshifting circuit 31 including valves 32, 33 which conduct during alternate half cycles. The voltage impressed on the control members 40 of these valves is the resultant of a D.C. output 48, 49 from a voltage regulating circuit, and a phase-shifting bridge 43, 44, 45. The delaying. means include a transformer 58 energized from welding transformer 13, secondaries 59, 61 of transformer 38 energized from the mains 12, and a rectifier 54 having two anodes 55, 56. Assuming valve 10 to be conducting, the transformers 13, 58 are energized, the voltage in the secondaries 571, 60 of the latter being greater than and of reverse phase to those in 59, 61 so that the valve 54 is conducting and supplying negative grid bias to overcome the +ve voltage impressed on grids 40 of valves 32, 33, thereby rendering them non-conductive. When valve 10 stops conducting, transformers 13, 58 are de-energized, thereby making rectifier 54 non-conducting, and valves 32 and 33 conducting to energize valve 11 through transformer 23.