baber/WOPTO huggingface dataset:
Patent GB-597660-A (GB)
Title: Pulse keying circuit
IPC: H03K3/55
Filed: 1945-07-03
Abstract: 597,660. Pulse keying and amplifying circuits. TRIGGS, W. W. (Farnsworth Television & Radio Corporation). July 3, 1945, No. 16985. [Class 40 (v)] A pulse keying circuit comprises an electronic switch adapted to connect a source of potential to the output side of a storage device to charge it to a predetermined level, and then transfer the connection of the source to the other side of the storage device, under the influence of an input pulse, to increase the output potential substantially for the duration of the pulse. In the Figure, the fall of potential across resistor 20 is normally sufficient to maintain gas tube 12 extinguished, when storage capacitor 28 charges to the level of source 24 through diode 30. A negative synchronising pulse from circuit 1 produces a positive leading edge at the grid of valve 12 sufficient to cause conduction, which is facilitated by a corresponding positive wavefront at the anode via capacitor 15. Source 24 is now virtually connected to the other plate of capacitor 28 through valve 12 and the output plate rises in potential accordingly, isolating itself from source 24 by cutting-off diode 30. The trailing edge of the synchronising pulse generates a transient negative pulse at the anode of valve 12 sufficient to cause extinction and restore the original circuit conditions when diode 30 again conducts to supply normal anode voltage to amplifier 32.
Patent GB-1528322-A (GB)
Title: Phenolic ion-pairs
IPC: C07J1/00
Filed: 1976-07-07
Abstract: 1528322 Salts of phenolic compounds LEO AB 7 July 1976 [7 July 1975 17 March 1976] 16988/77 and 16989/77 Divided out of 1528321 Headings C2U and C2P The invention comprises (A) tetralakylammonium estra - 1,3,5(10) - trien - 3 - olates and (B) an organic solvent solution containing a salt consisting of a quaternary ammonium or phosphonium cation and an anion of a phenolic estra - 1,3,5(10) - triene, diphenylethane or diphenylethene. Specified phenolic components are estrone, 16α-hydroxyestrone, estradiol, estradiol 17-acetate, 17α-estradiol, 17α-ethynylestradiol, 16-oxoestradiol, estriol, 16-epiestriol, 17-epiestriol, diethylstilbestrol, dienestrol and hexestrol. Preparation of the above is by reacting the phenolic component, an aqueous alkali metal hydroxide, and a compound Q<SP>+</SP>X<SP>-</SP> where Q<SP>+</SP> is quaternary ammonium or phosphonium and X- is an inorganic anion, in an organic solvent which forms a liquid phase distinct from the aqueous phase; and separating the organic phase. If desired, the salt may be isolated from the organic solution and optionally redissolved in any organic solvent.
Patent GB-704999-A (GB)
Title: Improvements in or relating to hand operated lifting and propulsion units for hand trucks, stillages, and the like
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B62B1/08
Filed: 1951-07-18
Abstract: 704,999. Hand trucks. FISHER & LUDLOW, Ltd. July 17, 1952 [July 18, 1951], No. 16995/51. Class 108(1) A propulsion unit is provided with a pivoted block 21 having a socket to accommodate the spigot 25 of a pallet &c. the arrangement being such that the spigot is substantially vertically over the axle 11 when the pallet is being moved.
Patent GB-788675-A (GB)
Title: Improvements in or relating to garment supporting devices
IPC: A47G25/18
Filed: 1955-06-13
Abstract: 788,675. Packing garments. LAUNDER, J. A. June 12, 1956 [June 13, 1955], No. 17000/55. Class 94(1). [Also in Group XIV] A garment supporting or hanging device comprises a rail 12 adapted to be secured as by hooks 14, 15 to the wall of a trunk etc. and to support a hanger 26 for e.g. a dress 25 and a web of material 17 provided at each end with an element 18 or 19 at least one of which is apertured to pass over the dress and is detachably mountable on the rail, the other being fixedly or detachably mounted on the rail. As shown, both are detachable and are formed as wire frames having a lower split bar 20 to be selectively received in one of tubular passages 28 in the end of the web and an upper bar 23 formed with a hanging offset part 24. In use the rail is held by handle 13 and frames 18, 19 and hanger 26 are put on the rail in that order. Frame 19 is then passed over the hanger 26 and the rear of the rail is allowed to fall down over the dress and is then lifted and passed over the rear of the rail again so that the dress is suspended in a loop as shown. The rail is then mounted in the trunk. In a modified form, a third frame is mounted half-way along the web so that the dress is suspended in two loops.
Patent GB-231719-A (GB)
Title: Improvements in or relating to variable air condensers
IPC: H01G5/38
Filed: 1924-07-16
Abstract: 231,719. Elliot, D. L. July 16, 1924. Condensers.-In a variable condenser comprising two or more units, the capacities of which are simultaneously variable and approximately equal, an independently operated vernier plate is provided between the units whereby the capacities of the circuits which are to be simultaneously tuned may be balanced. The condenser may comprise two sets of fixed plates a, c, arranged one below the other and in staggered relationship on pillars e, e' secured to insulating end plates g. Corresponding sets of movable plates b, d are mounted respectively on sleeves j, n, adapted to be engaged for simultaneous rotation by a projecting key q on the sleeve n engaging a slot m on the sleeve j. The sleeves are freely mounted on a spindle r to which is secured a lug s carrying a vernier plate t. The plates b, d are simultaneously rotated to vary the capacity of the two units by rotating the spindle r with the lug s engaging the torque q. Accurate balancing of the capacities of the two circuits is then effected by a reverse rotation of the spindle which causes movement of the vernier plate t only, thereby reducing the capacity of one unit whilst increasing that of the other. Electrical connection to the two sets of movable plates is effected by a split plug y engaging the lower end of the sleeve n. In a modified arrangement, the two sets of fixed and movable plates are arranged at the same level, each set of plates extending over 90‹ only.
Patent GB-1102766-A (GB)
Title: Improvements in or relating to vehicles
Inventor: MENTEL FRED
IPC: E01C19/00
Filed: 1965-04-22
Abstract: 1,102,766. Self-propelled machines. BAUMASCHINEN GATERSLEBEN VEB. 22 April, 1965, No. 17030/65. Heading B7H. A self-propelled machine comprises a driving unit 1 having two or more wheels on only one common axis, and an implement or support unit 2 which includes a frame and an axle carrying two or more wheels and is detachably connected to the driving unit 1 so as to be interchangeable with other such units by a flanged joint 3 including abutting surfaces formed by one end wall of each unit 1, 2. The driving unit 1 may be combined with a support unit to form a four-wheel tractor, or with a variety of implement units to form machines for road building such as a swivel loader, asphalting machine, embankment clearing device or road grader, or with a blower-type or ram-type snow plough. The implements may be coupled to a power take-off or hydraulic circuit on the driving unit, and further implements may be connected to the other end of the unit 1.
Patent GB-236573-A (GB)
Title: Improvements in signalling and stopping devices for electromagnetic talking-machines
IPC: G11B15/16
Filed: 1925-07-02
Abstract: 236,573. Telegraphie - Ges. System Stille. July 3, 1924, [Convention date]. Magnetic machines. - In recording and reproducing sound by the use of a magnetized steel band or wire as a record, means are provided for giving a signal when the take-up spool attains a given size, and also for stopping the driving motor, these actions being caused bv the take-up spool. Springs E, F, L are arranged adjacent to the spools A, B, and when the band is almost completely wound on one spool the increased diameter of this presses the spring E into contact with the spring F to complete a circuit containing a bell H, battery G, and, if desired, a time switch J when an intermittent signal is desired. Further increase in diameter of the spool depresses the springs E, F so that the spring F contacts the spring L and completes a circuit through a relay M which then attracts an armature N and breaks the circuit of the driving motor O.
Patent GB-1070322-A (GB)
Title: Process for the preparation of 6-formyloxy caproic acids and derivatives thereof
IPC: C07D315/00
Filed: 1964-04-24
Abstract: 6-Formyloxy caproic acids of the formula <FORM:1070322/C2/1> wherein R represents hydrogen or an alkyl or cycloalkyl group, are prepared by reacting hydrogen peroxide with a mixture of formic acid and a cyclohexanone of the formula <FORM:1070322/C2/2> in the absence of a catalyst at 40-100 DEG  C., the molar ratio hydrogen peroxide/cyclohexanone being between 0.1 and 2 and using at least 1 mol. formic acid per mol. hydrogen peroxide. Some e -caprolactone and crystalline cyclic diperoxides may be obtained as by-products. It is preferred to use 2-30 mols formic acid per mol hydrogen peroxide and to operate at 40-90 DEG  C.  The hydrogen peroxide is preferably used in the form of a 30-90% by wt. solution. The reaction can be affected in a continuous manner.  The 6-formyloxy caproic acids can be converted to the corresponding ester or amides by known methods. Examples 1-7 relate to the oxidation of cyclohexanone and Example 8 to 3,3,5-trimethylcyclohexanone. Examples 9 and 10 describe amidation and esterification reactions.
Patent GB-244352-A (GB)
Title: Improvements in or relating to the lubrication of the sealed mechanism of gas meters
IPC: G01F15/00
Filed: 1925-07-04
Abstract: 244,352. Wilson, J. H. July 4, 1925. Gas-meters.-Lubricant under pressure is introduced to the enclosed mechanism of dry or wet gas-meters from the outside of the casing by a pump, gun, cup or the ilke. Grease is supplied through a nipple a secured in and protruding through the front wall of the meter casing b to pipes c, c<1>, c<2> leading to the stuffing-boxes d, d', d<2> of the valve and diaphragm spindles. Oil is supplied through a similar nipple a<1>, fitted with a non-return valve, to pipes e, e<1> passing through the base of the upper compartment into trays f, from which it is led by wicks h to the diaphragms i, so as to keep them pliable.
Patent GB-455937-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J5/44
Filed: 1935-06-14
Abstract: 455,937. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London. -(Assignees of Salzberg, B.; 659, East 165th Street, New York, U.S.A.) June 14, 1935, No. 17238. Convention date, June 23, 1934. [Class 39 (i)] A valve comprises an electrode assembly mounted on an insulator, and stiff conductors diverging from the insulator and secured to it by a means such that the conductors serve as leads for the electrodes and support the structure. The valve may be used in ultrahigh frequency circuits. In one form the electrodes are mounted between mica plates 15, 16 which are gripped by tongues 14 on extensions of the anode. Conductors 19 are secured to the electrodes or their supports and are pushed through and bent under the plate 15. Stiff wires 17 are welded to the wires 19 and are sealed through the container along a seal 18. In a modification the wires 17 are ribbon-shaped with their faces flat against the plate 75 and are turned through a right angle outside the bulb so as to present a knife-edge to their holders. In assembly, the wires 17 are secured around the periphery of a metal ring and the structure is then inserted into the bulb 10 so that the wires 17 rest on the lip 32. The cover 33 is then placed in position, the lips 32 and 34 sealed, the bulb evacuated at 35 and the ring cut away from the wires.
Patent GB-1216501-A (GB)
Title: Valves
Inventor: KOHRING WALTER
IPC: F16K7/06
Filed: 1967-04-14
Abstract: 1,216,501. Valves. W. KOHRING. 12 July, 1968 [14 April, 1967], No. 17287/67. Heading F2V. A valve comprises a flexible tubular membrane 12 providing a flow passage therethrough, a pair of support members 18 on opposite sides of the membrane and each comprising a number of cylinders 22 ... 26 journalled one within the other, each of the cylinders being arranged so that normally its cylindrical surface intersects the undeformed position of the membrane to deform it towards the other side of the membrane and having a portion cut away to define a recess 33 which, in the open position of the valve, accommodates the undeformed membrane, and means 34, 35 for rotating the cylinders of each support member sequentially starting with the inner cylinder to move the cylinders between the open position in which all the recesses 33 of each support member are in register to accommodate the undeformed membrane and the closed position in which the cylindrical surface of the outer cylinder 26 of each support member deforms and supports the membrane. Each recess 33 has a radius and axis corresponding to the radius and axis of the membrane while the means 34, 35 consist of semicircular grooves and projection providing lost-motion coupling between the cylinders of each support member. Two gear-wheels 31 interconnect the support members and rubber inserts in the cylinders 26 engage the membrane in the closed position to accommodate granules which may be present in the fluid controlled by the valve. In a modification, only four cylinders are included in each support member which is mounted in in needle bearings, spring steel rubbing strips are bonded to the ouside of the membrane, and the gear-wheels are coupled to a hand wheel. Small vents at each side of the valve body ensure there is no build-up of pressure when the support members are rotated.
Patent GB-563652-A (GB)
Title: Grinding wheel or other bonded abrasive articles
IPC: C09G1/00
Filed: 1942-12-07
Abstract: A grinding wheel &c. is made from abrasive grains of a carbide of silicon, boron, titanium, tungsten, or tantalum, or aluminium oxide, or diamond, with a vitrified borosilicate bond comprising percentages by weight of silica 40 to 70, zirconia and/or titania 2 to 20, alumina 3 to 30, alkaline earth oxide 2 to 15 of which up to 6 may be magnesia, alkali metal oxide 1/2 to 5 of which 0.3 to 3 may be lithia, and boric oxide 5 to 25.  Some silica and/or alumina of the bond may be produced from silicon and/or aluminium powders which may oxidize partly or wholly during firing, which may be at Orton cone 12, so as to protect the carbide abrasive from detrimental reaction. A composition specified contains clay, ground flint, artificial colemanite, spodumene ore, zircon silicon and aluminium. Specifications 295,292, [Class 22], and 488,641 are referred to.
Patent GB-356745-A (GB)
IPC: H01J61/76
Filed: 1930-06-05
Abstract: 356,745. Discharge lamps. CLAUDE NEON LIGHTS, Inc., 41, East 42nd Street, New York, U.S.A.-(Assignees of Beck. L. L. ; 27, Stoncleigh Park, Westfield, New Jersey, U.S.A.) June 5, 1930, No. 17436. Convention date, Nov. 30, 1929. [Class 39 (i).] Discharge l a m p s with thermionic cathodes are filled with helium mixed with not more than 8 per cent of neon and not more than 0À5 per cent of argon, krypton, or xenon, operation at a discharge current of 0À03-1À25 amps. per sq. cm. of tube cross section producing a bright, white light. The mixture depends on the current to be used, the percentage of neon being increased from 3 to 8 as the current increases in the above range. The potential gradient in the gas is reduced by high current densities and by the addition of the argonkrypton, or xenon. The proportion of krypton or xenon used is less than 0À30 and 0À15 per cent respectively. The pressure of the gas mixture in the tube is selected at a value from 8 to 1 mm. for tubes of diameter ranging from 11 to 30 mm. The length of the tube for a given potential drop can be increased by increasing its diameter. Dimensions of a tube and its electrodes are specified for a gas filling containing 7À25 per cent of neon. The electrodes are of copper, nickel, or iron, the cathode being coated with emission material such as oxides of alkaline-earth or rare-earth metals. Suboxides may be formed; for example, a coating of barium peroxide may be heated by a heavy discharge or by high-frequency induction, the gases evolved being exhausted. The cathode may be conical or cylindrical and may be coated with the oxide internally. In operation, the cathode may be heated by ionic bombardment due to the discharge, starting being effected by a high-frequency field. To avoid temperature variations, the cathode 3, Fig. 1, is preferably heated by a filament 14 heated initially by a separate current supply 16 and during operation by flow of the discharge current through it, the connection to the direct-current source 1 and variable resistance 4 being as shown. For alternating current, two anodes are provided, or both electrodes are thermionic and a circuit reactance corrects the power factor. In a modification, Fig. 5, a cylindrical cathode 3 coated externally is heated by a tungsten helix 14, the connections allowing the discharge current or current from a separate source 16 to be passed through the helix. To produce a helix of singlecrystal tungsten rigid at high temperature, the helix is heated to 2800‹ C., the heating taking place in a channel-shaped trough in an inert gas or hydrogen, or in situ with the helix supported on a quartz &c. rod which may be partly vaporized or destroyed during the heating. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of cathodes of alkali metal, such as a pool of potassium, sodium or caesium, instead of thermionic cathodes. This subject-matter does not appear in the Specification as accepted.
Patent GB-149943-A (GB)
Title: Improvements in or relating to heat engines
IPC: F03G7/06
Filed: 1920-06-26
Abstract: 149,943. Metzger, C., and L³tschen, E. Aug. 9, 1919, [Convention date]. Steam generation, methods of.-Water or other liquid under pressure flows at its molecular velocity from a reservoir 1 through a pipe 2 to a motor or other apparatus 5, 6. The pipe 2 passes through a heated hamber 3, the. highest temperature of which is next the motor 5, 6. The fluid after parting with its heat in the apparatus 5, 6, may be returned to the reservoir 1.
Patent GB-1064172-A (GB)
Title: Improvements in and relating to pure fluid amplifier systems
IPC: F15C1/14
Filed: 1964-04-28
Abstract: 1,064,172. Fluid amplifiers. R. E. BOWLES. April 28,1964 [May 31, 1963], No. 17480/64. Heading G3H. A pure fluid amplifier with a power nozzle 16, control nozzles 17, 18 and outlets 26, 27 is arranged with a bias towards one of the outlets. For example, the nozzle 18 may be larger than the nozzle 17 so that with equal pressures at each control nozzle the greater mass flow through the nozzle 18 results in deflection of the power stream to the outlet 26. The side walls 20, 21 may be so positioned that a boundary layer effect is produced to assist the deflection of the power stream, or vents 33, 34 may be provided to prevent such effect. Other means for introducing the bias include the positioning of one control nozzle further downstream than the other, the arrangement of one control nozzle at an acute angle to the axis of the power nozzle, the offsetting laterally or angularly of the power nozzle or the projection of the wall of one side of the power nozzle into the interaction chamber 22.
Patent GB-612975-A (GB)
Title: Improvements in or relating to electric batteries
IPC: H01M6/34
Filed: 1946-06-12
Abstract: 612,975. Batteries. BURGESS BATTERY CO. June 12, 1946, No. 17613. Convention date, June 20, 1945. [Class 53] A cell of the inert type comprises an anode and cathode separated by a rigid depolarizer block and a sheet of blotting paper or other porous material, the depolarizer and porous sheet being exposed round their peripheries so that electrolyte is absorbed when the cell is immersed in the liquid. A number of cells may be stacked to form a pile with the cells joined in series or in parallel as shown in Fig. 2. The anode of each cell may consist of a magnesium plate 10 next to which is a sheet of blotting paper 11 in contact with a porous block 12 of manganese dioxide, powdered graphite or carbon black, magnesium sulphate or the chloride of sodium, potassium, barium or ammonium or other electrolyte material and a binder. If the battery is to be activated by sea water, the electrolyte material is omitted. The binder may consist of a solution of a synthetic resin. Hair or cotton or other filaments may be incorporated for strengthening purposes. The block is moulded under pressure and then dried. Adjacent the block 12 is a carbon cathode 13 which is moulded from finely divided carbon or graphite and rosin, pitch or other adhesive. The end plates are covered with non-conducting plates 15. All the elements of the battery are formed with a central opening through which passes a metal tube 17 carrying screw-threaded nuts 19 at its ends to retain the cells under pressure. The tube 17 may be painted or surrounded by an insulating tube to insulate it from the elements of the battery or, as shown, it may be of smaller diameter than the openings through which it passes. The anodes and cathodes are formed with lugs which are soldered to terminal wires 22, 24, whereby all the cells are joined in parallel. The battery is activated by immersion in water or an electrolyte which may be sea water. The cells may be connected in series by arranging them so that the anode of one cell makes contact with the cathode of the adjacent cell, the end electrodes forming the terminals of the battery. The battery may be enclosed in a container which may be perforated for activation by immersion or non- perforated, in which case the activating liquid is poured into the container or enclosed in a breakable capsule.
Patent GB-427933-A (GB)
Title: Improvements in or relating to handbags
IPC: A45C3/06
Filed: 1934-06-14
Abstract: 427,933. Handbags. ROHR, M. E., 1306, Church Street, and WALTUCK, E., 215, Cleveland Avenue, both in Lynchburg, Virginia, U.S.A. June 14, 1934, Nos. 17693 and 17694. Convention dates, Feb. 27, 1934 and May 10, 1934. [Class 133] A handbag formed of linen or other launderable material, and capable of being unfolded and laid out flat, is provided with two or more flaps and has buttons or other removably attachable closing means to keep it in shape in folded form. The folded handbag may be complete in itself or may be adapted to receive a foundation bag. Fig. 7 shows one construction partly folded ; the loop 10 of the closure flap 6 is engageable over a button 11 secured in a perforation in the front 7, and the side flaps 8 are connected together over the back 5 by means such as the strap 16 shown in Fig. 2. Figs. 13 and 18 show other forms in unfolded condition. Specification 392,910 is referred to.
Patent GB-1436129-A (GB)
Title: Inductance structures for electrical lamp circuits
IPC: H05B41/232
Filed: 1973-04-12
Abstract: 1436129 Inductors and transformer THORN ELECTRICAL INDUSTRIES Ltd 4 Feb 1974 [12 April 1973] 17707/73 Heading HIT [Also in Division H2] A lamp starting circuit comprises a choke having windings 11, 12 in the form of flattened loops joined in series and coupled in flux opposition on a common laminated shell core 13, and at least one auxiliary similar core 14 embracing one of the windings only. The windings may be of different lengths but of the same width, as shown, or of different lengths and widths with one winding within the other (Fig. 2, not shown), or may be identical both in shape and in their number of turns (Fig. 3, not shown). In the last-mentioned case, there is one auxiliary core associated with each winding (54, 55). The cores are assembled from magnetic laminations based on variations of E-E or E-I combinations. Core 13 comprises two E- laminations 15, 16 with an insulating spacer 17. Core 14 is provided with a similar spacer (24). Some specific lamp starter and operating circuits are disclosed (Figs. 5-7, not shown, see Division H2).