baber/WOPTO huggingface dataset:
Patent GB-540218-A (GB)
Title: Improvements in electronic relay circuit arrangements
IPC: H04L25/24
Filed: 1940-04-03
Abstract: 540,218. Wireless signalling; valve relays. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., DAVIS, N. E., CLOUGH, N. H., and BOUNDS, L. April 3, 1940, No. 6053. [Class 40 (v)] Relates to keying or switching circuits using gas-filled valves. In order to de-energize the valve, a condenser, charged during the period when the valve is conductive, is so arranged as to reduce the anode potential simultaneously with, or shortly after, the reduction of potential on the grid. When the key S 1 , S 2  is in its "on" position (as shown), the condenser C is connected across the anode resistance R 1 , and the grid of valve V 1  is connected to the positive terminal of the bias battery. When the key is moved to its " off " position, the grid is connected over resistances R 3 , R 4  to negative, and the positively charged side of the condenser C is connected to the cathode, thereby extinguishing the valve. In a modification, Figs. 2 to 6 (not shown), two gas-filled valves are used and the condenser C connected to the anode of each valve, the key in one position making the grid of one valve positive and of the other negative, this condition being reversed in the other position. Keying voltages may be taken across the anode resistances or the valves; the anode resistance may serve as the normal grid resistance of an amplifier, Fig. 3 (not shown), or, when the circuit is used in an early low-voltage low-current stage, the anode resistance may serve as the anode resistance of the amplifier, Fig. 4 (not shown), or the anode of one gas-filled valve may be connected direct to the screen-grid of a multi-grid valve, Fig. 6 (not shown).
Patent GB-117908-A (GB)
Title: Improvements in Magazine Chargers for Machine Guns.
Inventor: BENNIE JAMES
IPC: F41A9/83
Filed: 1917-04-30
Abstract: 117,908. Bennie, J. April 30, 1917. Cartridge magazines, charging. - Relates to means for feeding cartridges, one at a time, into magazines for machine guns, and consists in preventing a miss-feed by employing a spring-actuated pawl or finger which allows the feed movement of the magazine to take place only when a cartridge being delivered into the magazine displaces the pawl or finger from the path of the magazine feed mechanism. Fig. 2 shows in plan a machine provided with a horizontal spindle 2 to receive a magazine as used in the Lewis gun. The rotation of a shaft 19 by a handle 20 operates (1) through a crank-pin 17, connecting-rod 16, slide 15, and bell-crank 12 to reciprocate a cartridge-inserting plunger 4, and (2) through the eccentric 18 and oscillating ratchet-lever 21 to rotate step by step the pan of the magazine. The cartridges are placed in a hopper 6, the outlet from which is immediately in front of the plunger 4. The movement of the cartridges in the hopper is facilitated by a reciprocating curved wall 10 connected by a link 11 to the plunger 4. To prevent a miss-feed, a stop 26, operated by a spring-controlled lever 27 having a depending portion 29 extending over the cartridge exit, moves into the path of the pan feed lever 21, when the supply of cartridges is interrupted. A spring 31 presses against the magazine and acts as a brake.
Patent GB-334177-A (GB)
Title: A process of making soaps containing fat-solvents
IPC: C11D9/26
Filed: 1929-02-25
Abstract: 334,177. Zimmermann, S. Oct. 2, 1928, [Convention date]. Saponaceous cleansing-compositions in which the proportions of fat-solvents may be large and yet the compositions be soluble in water, are prepared by saponifying a fat with less than the stochiometric quantity of alkali in presence of propyl or isopropyl alcohol, the hydrocarbon or other solvent being added before, during, or after saponification. The alcohol may be volatilized from the soap wholly or in part. A soap containing more than the desired proportion of solvent may be mixed with soap containing no solvent. In an example, to 250 lb. of fatty acid and 15 lb. of isopropyl alcohol dissolved in 1000 lb. of benzine is added an aqueous solution of 35 lb. of caustic soda; any desired quantity of soap containing no solvent of fat is then mixed in. Solvents specified are benzine, benzene, terpenes, and halogenated hydrocarbons. 50 per cent. of solvent in the finished soap is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the presence of alcohol is optional, and any alcohol may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-238799-A (GB)
Title: Improvements in dynamo electric machinery
IPC: H02K9/10
Filed: 1925-03-06
Abstract: 238,799. Holmes, J. H., and Robertson, A. T. March 6, 1925. Dynamos and motors, cooling; armatures and field magnets, cooling.-A sinuous path for cooling-air is formed between the stator laminations 6 and the outer casing 1 of an enclosed machine by internal projections 2, 3, 4, 5 on the stator frame. The fan 11 for introducing the air is mounted outside the machine and driven by a belt 12 from the machine shaft 13. Notches or corrugations 17 are formed on the periphery of the stator to increase the cooling surface. The internal air of the machine is circulated bv a fan and passes through cooling-tubes 16 extending across the path of the external air between the partitions 4, 5. Specification 110,269 is referred to.
Patent GB-825092-A (GB)
Title: Improved means for firing ceramic ware by intermittent ovens
IPC: F23M7/00
Filed: 1957-02-23
Abstract: 825,092. Bell-type furnaces. SHELLEY POTTERIES Ltd., and SHELLEY, D. P. Feb. 20, 1958 [Feb. 23, 1957], No. 6145/57. Class 51 (2). Plant for firing ceramics by intermittent ovens movable over fixed bases comprises ovens 20 which may be of the type disclosed in Specification 775,108, prefabricated refractory hearths 10 enclosed by an angle-section frame 13 and disposed on a steel base-plate 11 bounded by channel section girders 12, two upstanding girders 15 secured to the base and supporting a cross member 18 carrying an overhead monorail 21 and a hoist carriage 23 running thereupon. The carriage has two hoists 22 with lifting hooks 24 engaging ears 25 attached to girders 26 on the sides of the oven. The girders 15 carry tracks engaged by guiding rollers on the oven sides. The bases may be arranged in straight lines or in a circle or other desired path. In a modified hoisting arrangement, Fig. 2 (not shown), the carriage has one hoist controlling separate lifting hooks operated by cables and pulleys so that the hooks engage opposite sides of the ovens as with the separate hoists.
Patent GB-895477-A (GB)
Title: Improvements in and relating to electric spark ignition units
Inventor: MAYCOCK WILLIAM HENRY
IPC: F02P15/00
Filed: 1960-02-22
Abstract: 895,477. Ignition units. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 22, 1961 [Feb. 22, 1960], No. 6158/60. Class 7(4). An ignition unit comprises electrical ignition system components enclosed in a casing which has a substantially square or rectangular opening and has a lid for closing that opening, the lid being recessed for the accommodation of a capacitor connectible to the components in the casing, the lid having a capacitor secured thereto, a terminal for earthing one electrode of the capacitor and an electrically insulated high-voltage terminal for connecting the other electrode of the capacitor. The lid may be of metal and a liner of insulating material is fitted into the recess, the liner having a boss for supporting the high voltage terminal. A portion of the high voltage terminal may be moulded into the boss. A layer of resilient insulating material such as silicone, rubber may be arranged between a pressure plate and the capacitor. The lid may be of steel and have a cover of steel secured thereto such as by welding the cover sealing hermetically the capacitor in the recess of the lid and a ceramic insulator may be provided for the high voltage terminal on the lid. Four similar elements can be provided instead of the two elements 3 and the depth of the lid would then be about twice the depth of the lid shown. The insulating liner 2 may be of phenol- or urea-formaldehyde resins with a suitable filler such as mica dust. Advantageously the capacitor elements are made with a temperature resisting dielectric such as mica sheets. The lid may be of insulating material. The liner or an insulating lid may be of cast resin. The unit is particularly suitable for high energy ignition at great altitudes such as required for supersonic jet aircraft.
Patent GB-224144-A (GB)
Title: Improvements relating to glands for electric cables
IPC: H02G3/06
Filed: 1924-03-11
Abstract: 224,144. Wight, H. D., Park, W., and Sunderland Forge & Engineering Co., Ltd. March 11, 1924. Couplings.-A gland for use with armoured and lead covered cables is provided with a sleeve 1 having a portion 1<a> which is a sliding fit over the lead covered cable 2. The remaining portion of the sleeve 1 is of larger diameter so that a shoulder 1<c> is formed, against which a metallic packing is placed. A loose truncated cone 4 sliding on the cable has its smaller end forced under the armouring 5 forcing it outwards into metallic contact with a ferrule 6 secured and pressed into place by the nut 7. The armouring is held between the ferrule 6 and the cone 4 and together with the lead covering is earthed to the gland.
Patent GB-1045989-A (GB)
Title: Wide band amplifier having variable gain
IPC: H03F3/26
Filed: 1964-02-14
Abstract: 1,045,989. Valve and transistor amplifying circuits. TEKTRONIX Inc. Feb. 14, 1964 [Feb. 18, 1963], No. 6222/64. Headings H3Q, H3T and H3W. A variable gain D.C. amplifier having a substantially constant bandwidth comprises first and second stages coupled together by a variable voltage divider the setting of which does not substantially vary either the load impedance of the first stage or the source impedance of the second stage and so does not vary the individual gain of either stage. Means are provided for preventing the flow of D.C. bias through the variable voltage divider so that the quiescent D.C. output voltage does not change with variation of the setting of the voltage divider. The arrangement is described in its application to a pre-amplifier for an oscilloscope and comprises a cathode-follower 10 feeding into an emitter-coupled transistor pair 12, 14. The cathode follower is preceded by a switched attenuator comprising series resistors 26, each shunted with a frequencycompensating capacitor and a fixed shunt resistor 30. A further resistor 22 shunted by a frequency-compensating capacitor 24 is in series with the grid of the valve, while a gasdischarge tube 32 connected between grid and cathode limits the potential which can be developed between them. The anode potential is derived from a variable voltage source 16 whereby the standing cathode potential may be brought to a predetermined value. The transistors 12, 14 are coupled by a #-network of resistors 54, 56, 58, resistor 54 being shunted by a capacitor; transistor 12 is driven from the cathode-follower 10, its standing base potential being derived over resistor 46 from an adjustable potentiometer 48. The base of the other transistor 14 is biased from potentiometer 66, 68, a further variable bias being derived over resistor 70 from adjustable potentiometer 72. The transistors are provided with loads 60, 62 in the collector circuits, which also include a common resistor 63 and a variable voltageadjusting resistor 64. The variable attenuator coupling the two stages comprises variable potentiometers 34, 40, the first of which is used to reset the gain to a standard value when changes in the valve or transistors occur, and the second to vary continuously the amplifier output voltage. The potentiometers 34, 40 are connected together at one end, the other ends being connected to potential sources comprising potentiometers 36, 38 and 42, 44 respectively; the component values and potentials are so chosen as to produce the desired result, viz. constancy of quiescent D.C. output and overall frequency response.
Patent GB-1374927-A (GB)
Title: Locking joint for concrete piles comprising joined sections
IPC: E02D5/52
Filed: 1973-02-08
Abstract: 1374927 Sectional piles STABILATOR AB 8 Feb 1973 [22 Feb 1972] 6270/73 Heading F2G In order to lock pin and socket connectors 5, 9 joining two sections of a concrete pile, so that locking rods 8 cannot be shaken loose, split spring collars are held in grooves 15 and are a snap fit behind the enlarged heads 16 of rods 8, when these have been driven home.
Patent GB-342923-A (GB)
Title: Improvements in cooking ranges of the combination type
IPC: F24B5/08
Filed: 1930-02-25
Abstract: 342,923. Cooking-ranges. BROWNS FOUNDRY CO., Ltd. and BROWN, J., Nelson Ironworks, Nottingham Road, Derby. Feb. 25, 1930, No. 6322. [Class 126.] Combined open fireplaces and cooking stoves ; trivets; blowers; boilers, arrangement of.-In a combination range having a side oven c and two upper ovens or the like d, e, two independent flues are provided, one flue h passing from the fire beneath, up the outer side of, and above the oven c, and thence up between the ovens d, e, whilst the second flue i leads up the inner side of the oven c, over the top (in front of or behind the flue h), and thence up the outer side and over the top of the oven e ; the flues cover as far as possible the entire surfaces of the walls of the ovens c, e, and one of them is arranged to heat the boiler b, the flue h in the range shown leading from the back of the fire beneath the boiler. A hot-closet f may be provided, up the back of which the flues h, i extend. Preferably there is also provided a flue j leading under and up the back of the boiler b, thence below and up the outer side and back of the oven d, and up the back of the hot closet f. Two independent hinged trivet plates m, m<1> may be provided, the plate m serving to close the lower part of the fire opening so as to form a blower in its vertical position, whilst the plate m<1> when horizontal extends forwardly to the top of a vertical fret or the like.
Patent GB-1417037-A (GB)
Title: Production of switching order information for transmission of  pcm words
IPC: H04Q11/04
Filed: 1973-02-08
Abstract: 1417037 Automatic exchange systems TELEFONAKTIEBOLAGET L M ERICSSON 8 Feb 1973 [8 Feb 1972 (5)] 6350/73 Heading H4K In a TDM exchange incorporating a timespace-time network through which PCM channels are switched preferably in a parallel format, signal words pertaining to PCM channels are transferred through the space stage to a last-look memory so as to enlist a computer in the event of any changes. The computer seizes a control circuit associated with the space switch and, in the event of a calling condition, instructs it to find a free time slot useable on the incoming and outgoing highways pertaining to the calling and called parties. The slot identity and calling/ called party data is then despatched via the space switch to control memories in the first and last time stages so as to permit the connection to be set up. All the data is also stored in the last-look memory. In the event of a callrelease condition, the computer instructs the control circuit to cancel the data in the various memories. The particular description is identical to that in Specifications 1,417,033, 1,417,034, 1,417,035 and 1,417,036.
Patent GB-796444-A (GB)
Title: Fuel injection pumps for internal combustion engines
Inventor: CHATTERTON ERNEST EDWARD
IPC: F02M59/48
Filed: 1956-02-29
Abstract: 796,444. Fuel injection pumps. NAPIER & SON, Ltd., D. Jan. 14, 1957 [Feb. 29, 1956], No. 6385/56. Class 102(1). In a fuel injection pump of the kind comprising a barrel 11 in which slides a plunger which delivers fuel past a delivery valve 14 to the fuel delivery pipe or pipes, the delivery valve chamber 12 and the pump barrel 11 are clamped together by a ring nut 20. The valve 14 seats on an insert 13. A sleeve 25, made of material having a low modulus of elasticity compared with the materials of the other parts of the pump, is inserted between the shoulder 24 of the chamber 12 and the shoulder 23 of the insert 13. On clamping the chamber 12 and barrel 11 by the ring nut 20 the sleeve 25 is compressed substantially greater than the extension produce between the chamber and the barrel by the reaction to the pumping pressure so that although these parts extend, the sleeve 25 will extend by the same amount and this sleeve still retains the remainder of its initial compression thereby exerting a clamping force between the surfaces 21 and 22 of the barrel and insert thus obviating leakage between them. In the embodiment described the pump body is of aluminium or aluminium alloy and the sleeve 25 of steel to Ministry of Supply Aircraft Material Specification DTD 247.
Patent GB-635621-A (GB)
Title: Manufacture of asymmetrical disazo-dyestuffs
IPC: C07H1/02
Filed: 1947-03-07
Abstract: Asymmetrical disazo-dyestuffs are obtained from tetrazotized 3 : 3-dihydroxy-benzidine by coupling first in a medium having a pH value ranging from that of an acetic acid medium to that of a medium rendered alkaline with an alkali carbonate and secondly in a medium having a pH value higher than that of the first, the difference in pH of the two media being at least as great as that between an acetic acid and an alkali carbonate medium or between an alkali carbonate and a caustic alkali medium.  Many suitable coupling components are specified, particularly pyrazolones, p  acetoacetic acid arylides and hydroxy-naphthalenes; these may contain solubilizing groups such as carboxyl and sulphonic acid or sulphonamide groups and further substituents such as halogen atoms or amino groups.  Such solubilizing groups are preferably present in the first coupling component and absent in the second.  Either or both coupling components may be chosen so that the resultant dyestuff is capable of forming a heavy metal complex, e.g. by using a component which contains a hydroxyl group in the ortho-position to the coupling position.  The dihydroxy-benzidine is tetrazotized in the usual way and added to a solution of the first coupling component which has been adjusted to a suitable pH value.  The resulting monoazo-dyestuff may or may not be isolated before it is added to the second coupling component.  The diazo-dyestuffs are suitable for dyeing or printing a wide range of materials, especially cellulose (e.g. cotton, artificial silk and staple fibres of regenerated cellulose) and animal fibres (e.g. wool, silk and leather).  They may be converted in the dyebath or on the fibre into complex metal compounds, e.g. those of copper, chromium, iron, nickel, and cobalt, by normal methods, such as that described in Specification 455,274.  Metal compounds may also be produced in substance, especially cobalt and nickel compounds, for colouring masses or solutions thereof, such as nitrocellulose lacquers, artificial resins and spinning masses. Examples are given of the preparation of typical dyestuffs according to the invention, and of the use of one of the products to dye cotton.  Specification 102,881, [Class 2 (iii)], also is referred to. The Specification as open to inspection under Sect. 91 is not limited to a definite value for the difference in pH of the two media, and merely states that the second coupling operation is carried out in a medium of higher pH than the first.  Further examples are given. This subject-matter does not appear in the Specification as accepted.
Patent GB-959341-A (GB)
Title: Improvements in or relating to drinking tumblers
IPC: A47G19/22
Filed: 1962-02-20
Abstract: 959,341. Drinking tumblers. SUN KIN CHAO, [trading as KIN HIP METAL & PLASTIC FACTORY]. Jan. 8, 1963 [Feb. 20, 1962], No. 6506/62. Heading A4A. [Also in Division F4] A drinking tumbler comprises inner and outer walls 1, 2 preferably of injection moulded synthetic plastic e.g. polystyrene secured together so as to define a heat insulating air space 7 between the walls, a lip 5 on the outer wall 2 being secured by adhesive or solvent in a recess 6 in a conical part 4 near the mouth of the inner wall and a thin lip 3 projecting upwardly from the conical part. The inner wall is preferably opaque e.g. white and the outer wall transparent a decorative printed sheet 8 being inserted in the air space. The sheet fits the height of the air space and is positioned in contact with the outer wall. A separate disc 9 is fitted to cover the base. In a modification the inserts are formed as injection mouldings of coloured plastic e.g. of lattice pattern.
Patent GB-1082681-A (GB)
Title: Improvements in or relating to tempering shoe uppers
Inventor: BRADSHAW ARTHUR
IPC: A43D11/14
Filed: 1963-02-19
Abstract: 1,082,681. Tempering Uppers. BRITISH UNITED SHOE MACHINERY CO. May 13, 1964 [Feb. 19, 1963; April 17, 1964], No. 6548/63 and 15936/64. Heading A3B. Apparatus for tempering leather uppers comprises a first member with a porous engaging surface, a second member with an opposed engaging surface, means for causing relative movement of approach and separation of the two members so that in one condition an upper may be positioned therebetween and in the other the upper is held between the engaging surfaces, and devices for supplying water and heat to the porous engaging surface. Thus the flesh side of the upper is engaged by a moist warm surface while the grain side is engaged by a cooler surface. In the apparatus shown in Figs. 1 and 2, the first member 4 comprises a pad of porous material 11, e.g. layers of knitted glass, polyurethane foam, and cotton cloth, supplied with water by a flattened perforated pipe 13, and mounted on a. resilient plate which normally holds the pad away from a heater comprising semicylindrical copper plates 5, 6 with electrical heating elements 9 therebetween controlled by a simmerstat having a knob 102. The second member 10 with a sponge rubber engaging surface 14 is moved donwardly by cylinder 52 which first acts via yoke 54 to engage member 10 with the upper 5 on member 4 and then via straps 60 to press member 10 firmly around the upper and porous material 11, plate 25 also giving and being pressed against the heater so that the pad is heated. Water is supplied to pipe 13 by a pump 40 controlled by cylinder 84. Cylinders 52 and 84 are operated by solenoid operated air valves connected to an adjustable time switch controlled by push button 100. The heel of the last is supported on an adjustable support 29, and cement on the waist of the upper is activated by a heater 70 controlled by a simmerstat having a knob 78. In the construction shown in Fig. 7 the first member 204, comprising a pad of porous material 211 tied to a spring steel sheet 244, is moved upwardly and, with the upper therebetween, forces the second member 210, comprising a sponge rubber layer 248 bonded to a spring steel sheet 246, into a fixed forming member 254, so that the two members assume the required shape and additionally member 204 is pressed into engagement with heating device 212 from which it is normally spaced by means of springs 242. The systems for supplying water to pad 211, for heating device 212, for moving member 204, and for controlling the whole operation is described.
Patent GB-147411-A (GB)
Title: Improvements in or relating to stauffer lubricators
IPC: F16N11/02
Filed: 1920-03-03
Abstract: 147,411. Maser, R. March 3, 1920. Greasel cups. - A Stauffer lubricator has a locking-device in the form of an annular member c located between the cap a and barrel b and threaded into each with threads of similar hand and pitch.