baber/WOPTO huggingface dataset:
Patent GB-735462-A (GB)
Title: Improvements in or relating to iodine-containing ethylenediaminetetraacetic acid compounds and methods of making same
Filed: 1952-12-19
Abstract: The invention comprises tri-alkali metal triiodo ethylene diamine tetra-acetic acid dihydrates of the formula M3(C10H12N2O8I).I2. 2H2O wherein M is an alkali metal.  They may be prepared by adding iodine in at least equimolar amount to a concentrated aqueous solution of a tetra-alkali metal salt of ethylene diamine tetra-acetic acid and crystallizing out the reaction product. Thus, one mol. of iodine is added to a stirred warm concentrated aqueous solution of one mol. of tetra-sodium ethylene diamine tetra-acetate and the solution allowed to cool.  The resulting crystalline tri-sodium triiodo salt is filtered off and a further quantity of the salt obtained by diluting the filtrate with methanol.  The tetra-sodium salt used as reactant may be replaced by the tetra-potassium, lithium, rubidium or cesium salt or by mixed alkali-metal salts, e.g. the di-sodium di-potassium salt. The products have germicidal and fungicidal properties and form metal complexes; they may be used in water purification (see Group VI).ALSO:Tri-alkali metal tri-iodo ethylene diamine tetra-acetic acid di-hydrates of the formula M3(C10H12N2O8I).I2.2H2O wherein M is an alkali metal are used, suitably in tablet form, for the purification of water for the purpose of rendering it free of bacteria.  The preparation of the salts is described (see Group IV (b)).  Aqueous solutions may be applied to the human skin.
Patent GB-624639-A (GB)
Title: Improvements in washer assemblies for water taps and the like
IPC: F16K1/36
Filed: 1946-10-31
Abstract: 624,639. Valve closure members. SITZLER, L. E. Oct. 31, 1946, No. 32344. [Class 135] In a water or like tap, a sleeve 9, loosely em. bracing the usual jumper disc 5 and a rubber or like deformable washer 6, has its lower edge spun or surged over to form an inturned lip 10. Its upper edge 12 is either burred over or formed with inturned tabs to prevent separation of the parts. The washer may be shaped to receive the lip 10. The spigot 7 may be waisted instead of being threaded or may be dispensed within the case of a washer without an aperture.
Patent GB-1310131-A (GB)
Title: Broadband zero field electron-spin echo apparatus
IPC: G01R33/60
Filed: 1970-07-03
Abstract: 1310131 Exchange echo apparatus WESTING- HOUSE ELECTRIC CORP 3 July 1970 [28 July 1969] 32350/70 Heading G1N [Also in Division H4] Electron spin echo (or Exchange echo) signals from a heavily doped material having 10<SP>19</SP> to 10<SP>21</SP> paramagnetic defect centres per cubic centimeter are observed by subjecting the material to two pulses Pi and Pr of micro-wave energy and observing the resulting signals which include Pi and Pr followed by the exchange echo signal. In Fig. 1, the sample material is in a liquid helium cryostat and in no external magnetic field. If the sample has a high dielectric constant, e. g. rutile doped with iron or chromium, or strontium titanate or barium titanate doped with iron, a micro-wave resonance cavity is not necessary; but if the sample has a low dielectric constant, e. g. iron doped zinc tungstate, a microwave resonance cavity is necessary. The Pi and Pr pulses are gated through switch 12 under the control of a pulser 16 and the resulting signals are detected and fed to an oscilliscope 46, synchronised with the pulser to display any or all of the signals. In another arrangement Fig. 2 (not shown), the Pi pulse is generated externally and is received by a dish arial (50). The Pr pulse is generated by a delay loop (64-70) and the resulting echo signal is transmitted back to the Pi generator.
Patent GB-670597-A (GB)
Title: Improvements relating to upholstered furniture
IPC: A47C4/02
Filed: 1948-12-14
Abstract: 670,597. Seats. HARRIS, LEBUS, Ltd., DOUGLAS, W. D., and JESSUP, A. D. March 13, 1950. [Dec. 14, 1948] No. 32359 J48. Class 52 (ii). Seats &c., particularly upholstered seats &c., are formed of units which are provided with separable hinges the elements of which, after being brought together and rotated relatively to one another through a certain angle, cannot be further rotated except in reverse direction and cannot be separated until reversely rotated. Friction or other catches are provided to lock the assembled units together. In assembling the back 2 is brought to the seat 4 so that the elements of the hinges 10 are interengaged and rotated upwardly into final position. The arms 8 are then connected to the back 2 by separable hinges 24 and brought into their final position whereupon catches 26 engage automatically or are positively engaged by manual manipulation. The hinges 10 comprise a plate 12 provided with a curved part 16 and a bent part 20 for attachment to one unit say 2 while a plate 14 having a co-operating curved part 18 is secured to the unit 4. To assemble the hinge elements the edge of the plate 14 is laid against the flange 20 while the plate 12 is horizontal. The unit is then rotated anticlockwise causing the curved parts 16, 18 to engage. Such a hinge is described in 670,596, [Group XXV].
Patent GB-1345661-A (GB)
Title: Permanent magnet structure for a loudspeaker device
IPC: H04R9/04
Filed: 1972-07-11
Abstract: 1345661 Loud-speakers MOTOROLA Inc 11  July 1972 [10 Sept 1971] 32382/72 Heading H4J A moving coil loud-speaker has a permanent magnet structure 12 including an outer hollow member 32 of magnetizable material, a hollow permanent magnet 38 received within member 32 and an inner member 46a or 46b of magnetizable material received within the permanent magnet 38. The members 32, 46a or 46b and permanent magnet 38 have their axes aligned. The speaker cone 15 is mounted on one end of the outer member 32 but is spaced from the inner and outer members to permit proper movement in use. The permanent magnet 38 is preferably formed of resilient material having magnetic pieces 42 dispersed in it (e.g. ferrite dispersed in rubber). The inner member 46a or 46b presses the permanent magnet 38 against the inner wall of outer member 32 to maintain the members in position. The inner member is a solid rod 46a or is hollow and split 46b. In the latter construetion the inner member 46b is expanded within the permanent magnet 38 to force it into engagement with the outer member 32. Outer member 32 resembles an iron pipe and has one end 34 deformed inwardly to provide an air gap between itself and inner member 46a or 46b for a coil 22 wound on a former 18 having an end cap 20. The cone 15 is of paper and is mounted on front and rear flexible diaphragms 33 and 35 which join it to a non-magnetizable metal support 31.
Patent GB-779110-A (GB)
Title: Improvements in or relating to portable metal-slitting or metal-cutting saws
IPC: B23D45/00
Filed: 1955-11-12
Abstract: 779,110. Sawing. EISELE, C., and EISELE, A. Nov. 12, 1955, No. 32402/55. Class 145 A carriage 13 supporting a circular saw 20, driving motor 23 and belt and gear drives 25, 27 is mounted on parallel, preferably round, guide rods 11 on a base plate 10 and is reciprocable on the rods by means of a hand lever 18, pinion 15 and rack 14. A clamping device 35 for the work 36 is provided on an upper plate 29 angularly adjustable on a lower plate 28 which is adjustable towards and away from the saw by bolts 32 in slots in the base plate.
Patent GB-433111-A (GB)
Title: Knitted elastic fabric
IPC: D04B1/18
Filed: 1934-11-10
Abstract: 433,111. Knitted fabrics. BOIVIN, P. H., 100, Dufferin Street, Granby, Quebec, Canada. Nov. 10, 1934, No. 32433. [Class 74 (ii)] Elastic strands 1 covered each with two layers 2, 3 of yarn are held in place in a knitted fabric by causing the knitted loops 4 of alternate courses to pierce the outer layers 3. The knitted loops 6 of the remaining courses pass below the strands 1 without piercing and are so interlocked with the loops 4 as to hold them down close to the faces of the strands 1. This eases the pull on the cover yarns 2, 3.
Patent GB-780379-A (GB)
Title: Improvements in capsules for sealing containers
IPC: B65D41/34
Filed: 1955-11-14
Abstract: 780,379. Bottle, &c. capsules. MARTIN, C. M. Nov. 14, 1955 [Nov. 13, 1954], No. 32467/55. Class 125(3). A capsule 1, for a container, moulded in plastic has internally discontinuous retaining projections 2 which engage beneath an external shoulder on the container neck. Longitudinal ribs 3 are provided externally opposite projections 2 and the crown 8 may have an internal sealing rib 10. A tearing tongue 11 is defined by grooves terminating at a horizontal circular groove or head 13. In a modification, Fig. 4, the capsule has an internal or external rib 7. In other modifications the projections 2 have the form of spikes or partial screw threads.
Patent GB-963414-A (GB)
Title: Waveguide circulator
Inventor: DAVIS LIONEL EDWARD
IPC: H01P1/39
Filed: 1962-08-23
Abstract: 963,414. Waveguide circulators. MULLARD Ltd. Aug. 23, 1962, No. 32479/62. Heading H1W.  A four-port waveguide circulator comprises a composite element including a conductive matching post, a ferrite member or members and an outer annulus of dielectric material. The circulator is of the type comprising two sections of rectangular waveguide meeting in a common H or E plane with their axes perpendicular to each other to form a four-port junction. The composite element is arranged at the centre of the junction with its axis at right angles to the common plane of the waveguide axes. Fig. 3 shows the element in section as viewed from one of the ports of an H plane junction. It comprises a cylindrical brass matching post 1, two manganese-magnesium ferrite cylindrical members 3 and an annular dielectric member 2 of polystyrene. The outer diameter of the dielectric member may be greater or less than that of the ferrite members (Figs. 4, 5, not shown). It may surround both cylindrical members and extend from one waveguide wall to the other. Alternatively, it may surround only the ferrite members. The diameters of the conductive post and the ferrite cylinders may be equal. Fig. 7 shows a construction using one ferrite element surrounded by a dielectric annulus. In another modification (Fig. 8), the three members are of the same length. The matching post 1 may be in the form of a tube or of a conductive layer on a dielectric cylinder. Alternatively, it may comprise a conductive layer on the inside of the dielectric annulus or the ferrite member. In all the constructions the ferrite member (or members) makes face-to-face contact with one or both opposite walls of the waveguide and the arrangements are such that a path without airgaps is formed between opposite walls through the conductive member or through the conductive and ferrite members. As applied to an E plane junction, the element extends between the narrow walls of the guides.
Patent GB-647653-A (GB)
Title: Improvements in snap-action thermal switches
IPC: H01H37/60
Filed: 1947-12-10
Abstract: 647,653. Thermal switches. GREEN, J. D. F., and PYE, Ltd. Dec. 10, 1947, No. 32538. [Class 38(v)] In a thermal time-delay switch, a snapaction is provided by means of a resilient metal strip 62 of curved cross-section which on the application of an actuating force of sufficient magnitude collapses abruptly to a flattened form in the region of an abutment or gearing 72 to cause the rapid movement of the end of the strip. The switch is fully compensated for changes in ambient temperature. The free end of the curved strip 62 is moved to close contacts 63, 73, when a bimetallic strip 64 is heated by a heating coil 75 to a temperature at which the end 68 of the strip 64 applies sufficient pressure to cause the curved strip 62 to buckle about the abutment 72. The abutment 72 is formed by the end of a strip 69, which is bimetallic so that changes in ambient temperature, which would cause the bimetallic strip 64 to move the end of the curved strip 62, are compensated for by a corresponding movement of the abutment 72. The fixed contact supporting strip 74 is also bimetallic to enable the initial gap between the contacts 63, 73 to be maintained as the ambient temperature changes.
Patent GB-709370-A (GB)
Title: A process for producing a contractile sheath of thermoplastic material suitable for covering a pliers handle, cycle handlebar or other article
IPC: B29C49/04
Filed: 1952-12-24
Abstract: 709,370. Cycle handles. LACRINOID PRODUCTS, Ltd., and HAGEN, R. Dec. 24, 1952 [Dec. 31, 1951], No. 32716/52. Drawings to Specification. Class 136(3) [Also in Groups V and XXIII] A cycle handle is covered with a contractile sheath of thermoplastic material by fitting the sheath over the handle and then heating the sheath. The heat makes the sheath shrink on to the handle. This property of contracting or shrinking is imparted to the thermoplastic material by a moulding method (see Group V).
Patent GB-618558-A (GB)
Title: Improvements in metal-clad electrical switchgear
IPC: H02B1/00
Filed: 1946-11-04
Abstract: 618,558. Switchgear structures. DAVIES, D. R., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 4, 1946, No. 32749. [Class 38 (v)] In a modification of the switchgear structure of Specification 492,395, the fixed contact 2 of the circuit-breaker in each phase is mounted on the upper end of two bushings 3, 4, which extend through the breaker tank at or near the base thereof, and through fire-proof flooring 5 to emerge on opposite sides of a fire-proof wall 6, where they are connected with main and reserve bus-bars 7, 8, respectively, through isolating switches 9, 10, which are preferably of the construction disclosed in Specification 618,559.
Patent GB-1119041-A (GB)
Title: Improvements in and relating to polyurethane vulcanisates and their production
IPC: C08L75/04
Filed: 1965-07-30
Abstract: A vulcanizable composition comprises a major amount of a polyurethane and a minor and effective amount of a non-plasticizing polymeric fireproofing agent containing a halogen atom in at least a substantial proportion of its repeating monomeric units, e.g. polyvinyl chloride, a vinyl chloride-vinyl acetate copolymer, chlorinated polyethylene, chlorinated polyvinyl chloride, poly-(monochlorotrifluoroethylene), or a chlorine or bromine substituted copolymer of isobutylene with butadiene or isoprene. The fireproofing agent may be present in amount 15-45% by weight of the polyurethane, and may be incorporated by homogeneously dispersing in a polyurethane having a Mooney viscosity of above 70 at 100 DEG  C. Other materials, e.g. carbon black, stearic acid, tricresylphosphate, chlorodiphenyl, chlorinated naphthalenes, MgCO3, antimony oxide, talc or organic phosphates may be incorporated in the composition.  The compositions may be subsequently vulcanized, using peroxide curing agents.
Patent GB-961570-A (GB)
Title: Improvements in and relating to electrodes for electric discharge devices
Inventor: CAYLESS MAURICE ARTHUR
IPC: H01J61/067
Filed: 1961-09-13
Abstract: 961,570. Electrode materials and processing. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 19, 1962 [Sept. 13, 1961], No. 32866/61. Heading H1D. An electrode for a low pressure sodium vapour electric discharge lamp includes a body comprising a mixture of barium aluminate and between 5 and 25 w/o molybdenum or tungsten powder, or a mixture thereof, sintered together. The body may be a pellet held in a coil of tunsten or molybdenum wire. The pellets may be prepared by heating a powdered mixture of the metal and barium aluminate in a binder, e.g. methyl ethyl cellulose, to 1600‹ C. in hydrogen. The pellets are thus unaffected by exposure to air, and require only a short degassing period in the lamp before use.
Patent GB-1015114-A (GB)
Title: A device for the inducement of natural sleep
Inventor: BUTLAND HAROLD WILLIAM
IPC: A61M21/00
Filed: 1960-09-24
Abstract: 1,015,114. Sleep inducing appliances. H. W. BUTLAND. Dec. 21, 1961 [Sept. 24, 1960], No. 32880/60. Heading A5R. [Also in Division H3] A device for inducing natural sleep comprises on electrical circuit 1-16 capable of generating on audio-frequency signal (see Division H3) and a sound reproducer 17 which is connected to said circuit and is embedded in a soft material such as foam rubber or plastic. The sound may be continuous or intermittent and may comprise one or more musical notes or the sound of ocean waves could be simulated. The circuit may be switched on by plugging in the ear-phone 17 or a manual grip-operable switch may be provided which automatically switches off when sleep is induced. Frequency, volume and tone controls are provided.
Patent GB-772762-A (GB)
Title: Improvements in coin operated clock mechanism controlling devices
Inventor: PITT WILLIAM ARTHUR
IPC: G07F17/00
Filed: 1954-11-15
Abstract: 772,762. Coin-controlled savings clocks. TIME SAVINGS CLOCK CO., Ltd., and METAMEC Ltd. Nov. 4, 1955 [Nov. 15, 1954], No. 33016/54. Class 27. In a savings clock in which a control wheel 14 engaged by a pawl 15 is turned stepwise away from a position in which it stops the clock by the insertion of coins down a shoot 11 and is returned to stopping position by the clock mechanism, the coins act on a spring- loaded lever 13 and the control wheel acts on a stopping lever 18 through a pressed-out tongue 17. The lever 18 extends through the gap formed by a tongue 16 pressed out of a back plate 10 to receive the pawl 15 and carries a blade spring 19 engageable with a part of the clock mechanism, such as a pin on the balance. The control wheel is returned to the stopping position by mechanism comprising a co-axial shifting wheel 20 and ratchet wheel 21, each toothed over one half of their circumference, and a disc wheel 28 connected to the clock mechanism. One or more pins 29 can be inserted in holes 31 in the disc wheel, to vary the rate of return of the control wheel, and they rotate the shifting wheel 20 stepwise through half a revolution to tension a spring 23 until the plain part of wheel 21 comes opposite a pawl 26a, when the spring rapidly completes the revolution of the shifting wheel and a pin 22 extending between the shifting and ratchet wheels returns the control wheel through the space of one tooth. The pawl 26a is held clear of the plain part of wheel 21 by a pressed-out tongue 31. The control wheel has a wide tooth space 10b to prevent further rotation after a predetermined number of coins have been inserted and also a pressed-out tongue 17a engageable with a stop 10a to limit the return movement of the wheel.
Patent GB-635512-A (GB)
Title: An improved means for burning fuel in a high velocity air stream
IPC: F02K7/10
Filed: 1947-12-17
Abstract: 635,512. Burners. BEVAN, A. W., and BEVAN, N. J. Dec. 17, 1947, No. 33213. [Class 75 (i)] [Also in Groups XII and XXVI] A burner for burning fuel in a stream of air travelling at a speed higher than the speed of flame propagation in the fuel-air mixture, comprises a tubular body 10 having near its forward end, which constitutes the air inlet to the burner, an inlet 16 for gaseous or vaporized fuel, and having its outlet end 22 shaped to cause the boundary layer of combustible fluid mixture to break away from the wall of the body 10 and form back flow vortices around the periphery 26 of the issuing stream of combustion gases. The fuel inlet 16 may be annular so that the fuel flows between inner and outer streams of air, and the fuel may consist of vaporized liquid, or where the burner is used in a ram jet, as shown, of a gas such as propane, butane, or a mixture thereof. Fan blades 23 assist the mixing of the fuel and air, and the mixture is ignited by a sparking plug 27 or a catalytic or other ignition device. The back flow vortices enable a flame to be maintained in the annular zone 26, and in order to ensure the formation of back flow vortices the cone angle of the outlet 22 should exceed 10 degrees. A plurality of burners may be mounted in the air duct of a single ram jet at the tip of a rotor blade of a helicopter.
Patent GB-194402-A (GB)
Title: Improvements in or relating to heat exchange devices
IPC: F28D1/03
Filed: 1921-12-10
Abstract: 194,402. Callimachi, M. T., and General Technical Co., Ltd. Dec. 10, 1921. Metal tubes.-Flat tubes for heat exchangers are constructed with flat steel sides and edges of pure iron. These edges may be welded so that the steel gradually merges into the iron.
Patent GB-1397626-A (GB)
Title: Wicks
IPC: G03G15/20
Filed: 1972-07-18
Abstract: 1397626 Electrostatic printing; wick apparatus XEROX CORP 18 July 1972 [20 July 1971(2)] 33569/72 Heading G2H The freshly developed toner image 42 on a copy sheet 40 is fixed by fusing as the sheet passes through the nip of rollers 16, 18 the latter being heated by a heater 24. In order to prevent toner particles adhering to the 'Teflon' surface 22 of the roller 16 a wick structure 48 is employed to apply silicon oil to the roller surface. The wick structure comprises a pad of 'Nomax' 64 covered by a 'Teflon' skin 62 spring urged into contact with the roller 16. The oil 51 is fed to the wick through a ductor roller 52 and an auxiliary wick 75'. The roller 18 is also covered with 'Teflon' 34 and the 'Teflon' covered 'Nomax' structure is treated by burning so that the surface 55 which contacts the roller 52 is free of fibre ends and other fuzz. The burning treatment causes the wick surface to have a so-called one-way action in that oil does not blob and return to the roller surface from the wick.
Patent GB-342371-A (GB)
Title: Improvements in and relating to current regulating devices
IPC: H01C10/12
Filed: 1929-11-05
Abstract: 342,371. Compression resistances; couplings. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Stephenson, H. M. ; 1002, Northwood Boulevard, Fort Wayne, Indiana, U.S.A.) Nov. 5, 1929, No. 33637. Convention date, Nov. 5, 1928. [Classes 37 and 38 (i).] A rheostat for light duty motors &c. comprises a casing enclosing fixed and movable insulating members, a compressible resistance material supported on the movable -member, and resilient means located directly between the resistance unit and fixed member for biassing the resistance unit toward the movable member. As shown, Fig. 3, an L-shape casing 11 provided with heat-dissipating apertures 14 houses a fixed insulating member 19 and a telescoping insulating member 20 between which are located carbon pile resistances 17, 18. Metal end discs 22, 23, 26, 27 are provided, a bow-spring 30 connecting the upper discs and terminals 24, 25 at the base. The relative movement of the members 19, 20 is limited by a pin-and-slot connection 37, 38. Caps 52, 53 permit connection being made to the resistance unit, these caps serving in conjunction with resilient members as supporting feet. A foot pedal for controlling the resistance is shown in Fig. 4, the portion 42 engaging a recess 45, Fig. 3. A knee-operated member may be secured to the part 41. A punched slot 57, Fig. 5, is formed in the casing so that it may slide into engagement with a central fixing screw 58, the punched-out tab 59 supporting the conductor 56. Specification 268,756, [Class 38 (iii), Electric motor control systems &c.], is referred to.