baber/WOPTO huggingface dataset:
Patent GB-352116-A (GB)
Title: Improvements in and relating to resistance controllers for electric circuits
IPC: H02P7/06
Filed: 1930-04-15
Abstract: 352,116. Master control of motors ; drum controllers. SEEGER, E. W., 12th Street, Milwaukee, Wisconsin, U.S.A. April 15, 1930, No. 11933. Convention date, June 7, 1929. [Class 38 (iii).] With auxiliary switches.-To vary resistance in a circuit a number of sections initially connected in series, are used, and steps of resistance variation are effected by cutting out one section, then cutting out a second section and re-including the first, and then subsequently re-excluding the first section while maintaining the second excluded, a device being provided for positively ensuring that when one resistance is cut in and another cut out, such cutting in and out shall take place instantaneously. Resistances R1 .. R4 in another circuit are shortcircuited by switches 1a .. 4a operated by an electromagnetic relay C, governed by a controller D. The resistances may have values of 1, 2, 4, and 8 ohms respectively, and when the controller is in its first position a coil M is energized to close a switch Ma, so that the motor A is in series with 15 ohms. In the second position the relay C is energized and contacts C1, C2, C4, C6 are closed, the closure of C1 energizing switch la and removing 1 ohm from the circuit. In the third position, the relay C is de-energized and contacts C3, C5, C7 close, so that the switch 2a is closed and switch 1a opened, 2 ohms being removed from the circuit. At the next step both switches 1a and 2a are closed so that 3 ohms are removed. This continues until all the resistance has been removed in steps of 1 ohm. After the first position of the controller, the coil M is maintained energized by auxiliary contacts Mb, so that if the supply voltage fails the controller must be removed to its starting position before the motor circuit can be closed.
Patent GB-742810-A (GB)
Title: Improvements in the manufacture of highly polymeric polymethylene terephthalates
Inventor: FLETCHER NORMAN
IPC: C08G63/83
Filed: 1953-04-30
Abstract: In making highly polymeric polymethylene terephthalates by polymerization of a bis-(omega-hydroxy-n-alkyl) terephthalate, an aluminate which is soluble in the reaction mixture is used as catalyst.  Suitable aluminates are those of the alkali or alkaline earth metals.  The catalyst is preferably added as a fine powder dispersed, or dissolved, in glycol.  The amount used should be such that the product contains less than 0.05 per cent of aluminium.  If the bis-(hydroxyalkyl) terephthalate is formed by ester interchange a catalyst for this reaction, e.g. calcium acetate, may also be employed.  Both catalysts may be added at the beginning of the ester interchange reaction.  In example (1) polycondensation of bis-(hydroxyethyl) terephthalate is catalysed with sodium aluminate and in example (4) zinc aluminate is employed together with a small amount of titanium dioxide.  In example (2) the polymer is formed from dimethyl terephthalate and ethylene glycol using a mixture of calcium acetate and calcium aluminate as catalysts.  Titanium dioxide is added in the second step of the reaction.  Example (3) is similar, employing a mixture of calcium acetate and sodium aluminate and no titanium dioxide. Specification 742,811 is referred to.
Patent GB-770883-A (GB)
Title: Travelling wave tube
IPC: H01J23/50
Filed: 1955-04-26
Abstract: 770,883. Travelling-wave tubes. SPERRY CORPORATION. April 26, 1955 [June 9, 1954], No. 12038/55. Class 39(1). [Alao in Group XL(b)] The helix of a travelling wave tube is coupled to a coaxial line feeder by a tapered horn surrounding the end of the helix, the horn having a first section comprising a throat portion and a flaring portion and a second flaring section having preferably a larger angle of flare than the flaring portion of the first section and a greater external cross-section at its smaller end than that of the mouth of the first section so that a step is formed between the two horn sections. Both the input and the output coupling may be so designed as shown in Fig. 1, 54 60 being the coaxial line feeders and 24, 28 ; 40 the tapered horns having steps 31, 47. The first section of the horn (including the throat) is made <#>/4 long at the low frequency end of the band and the second section is made twice the length of the first section. The larger radius of the second section is greater than the radius of the helix fields at the low frequency end of the band to avoid interference effects in the field inside the horn. The design of the horn is discussed theoretically, and a numerical example is given. The input coaxial line 54 has its inner conductor 56 connected to the helix 46 and its outer conductor forming a T junction with anode 18 and horn section 24, the output connections being similar. The helix 46 is carried by three ceramic rods 48 which fit in holes in the horn members, ceramic members 53 giving additional support to the helix assembly. Pole pieces 24, 34 are integral with the tube envelope and are energised by a suitable external magnet (not shown). Anode 18 carries grid 22. Specification 770,881 is referred to.
Patent GB-899055-A (GB)
Title: Improvements in a cartridge for use in coffee making apparatus
IPC: B65D85/804
Filed: 1960-04-05
Abstract: 899,055. Packages. NOURY, J. G. P. April 5, 1960 [April 6, 1959], No. 12100/60. Class 94(1). A cartridge, for use in coffee-making apparatus has upper and lower per forated faces and is divi ded, by a thin perforated partition parallel to the upper and lower faces, into two internal chambers one of which contains the ground or soluble coffee 5 and the other of which is empty to permit swelling of the ground coffee and consequent bulging of the internal partition. As shown, the body 1a of the cartridge may be of tin or other sheet material e.g. plastic. The edges 4a of body 1a enclose the edges of partition 11 which form a collar constituting a distance piece to maintain the spacing between partition 11 and cover 3a. The cartridge, which is enclosed in a wrapper 14 may be cylindrical, polygonal or square.
Patent GB-513879-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/22
Filed: 1938-04-22
Abstract: 513,879. Electron multipliers. FERNSEH AKT.-GES. April 22, 1938, No. 12126. Convention date, April 23, 1937. [Class 39 (i)] In an electron multiplier comprising a number of permeable secondary-emitting electrodes 2, the anode 3 is arranged to be cooled and is placed in front of the last non-permeable secondary-emitting electrode 4 ; the output circuit is connected to the latter. The anode may be of silver mesh, the wires being thicker at their outer ends and connected to fins 5, which are coated with a metal oxide to increase heat radiation ; or the mesh anode may be connected to a metal part of the envelope, which part is water-cooled.
Patent GB-260644-A (GB)
Title: Improvements in steam boilers
IPC: F23M5/08
Filed: 1925-05-11
Abstract: 260,644. Simon-Carves, Ltd., and Brown, J. H. May 11, 1925. Gaseous and pulverulent fuel furnaces.-A boiler having upper and lower drums connected by groups of water tubes is heated by pulverulent or gaseous fuel introduced through burners at the top of the combustion chamber, the gases passing downwardly around the tubes and drums to an outlet at the bottom of the chamber. Symmetrically arranged groups of drums 3-11 connected by tubes from two sides of a combustion chamber supplied with fuel through burners 13. The gases escape through feed-heating tubes 16, 17 connected to the bottom drums. The other two sides of the chamber may be formed by further water-tube boiler elements or by groups of superheating tubes. The chamber may be enclosed by three boiler elements or by two boiler elements and one group of superheating tubes. Reference has been directed by the Comptroller to Specification 243,922.
Patent GB-465080-A (GB)
Title: Improvements in or relating to bag closuring devices
IPC: A45C13/06
Filed: 1936-04-29
Abstract: 465,080. Fastenings for bags. COLUMBIA PRODUCTS CO., Ltd., and LAITMAN, M. April 29, 1936, No. 12169. [Class 44] [Also in Group XVII] In a vanity bag having a closuring device of the kind in which the hem 3 around the mouth encloses a cord &c. for the engagement of a number of clips 4 which span the mouth edge to hold the same together, the clips 4 being attached to a flexible connector 7, the metal &c. clips 4 extend over and above the mouth edge and depend at 5 in close contact with the bag material below the corded mouth edge, being attached to the connector e.g. by loops 6, so that the edges of the mouth are covered, in the closed position, to prevent ingress of dust &c. The connector 7 is preferably provided with a spine 9 and flanged portions 10. The end clip 8 is fixed to the bag.
Patent GB-316241-A (GB)
Title: An improved bituminous roofing or damp-proof course, and method of preparing same
IPC: D21J1/20
Filed: 1928-04-26
Abstract: 316,241. Briggs & Sons, Ltd., W., and Briggs, A. S. April 26, 1928. Coating with adhesive and powdered material. -MetaJ coated bituminous sheeting for roofing and damp-course material is made by impregnating and coating a flexible travelling web of felt fibre, jute cloth, cotton cloth, &c. with a bituminous compound, passing the web through a trough containing metal powder to coat each side equally and simultaneously, and finally passing the web between rollers. The web may be passed through two baths of hot bituminous material, then between warm rollers, and thence into a trough containing powdered aluminium.
Patent GB-748607-A (GB)
Title: Improved bonding compositions for bonding surfaces of nylon
Inventor: REDFARN CYRIL AUBREY
IPC: C08J3/09
Filed: 1953-05-04
Abstract: A bonding composition for use in the bonding of surfaces of nylon consists of nylon dissolved in resorcinol and diluted by the addition of an alcohol (e.g. methyl alcohol, ethyl alcohol or higher aliphatic alcohol).  The composition is spread on the two nylon surfaces and bonding effected by heating at 120-200 DEG  C. at a pressure up to 300 lbs. per square inch.  Specification 634,422 is referred to.
Patent GB-877816-A (GB)
Title: Electric light fittings
IPC: F21S8/00
Filed: 1959-04-11
Abstract: 877,816. Light fittings. RIVLIN, J. July 11, 1960 [April 11, 1959], No. 12315/59. Class 75(4). An electric light fitting comprises a dished member 1 formed with a detachable cover 2 and spring clips for supporting a fluorescent tube 4, conventional starter gear being housed in the member to which gear are connected flexible wires 5 adapted to be coupled to the ends of the tube, resilient means, a spring 8 being interposed between or linked to the wires whereby the latter are automatically tensioned to lie taut against the tube when in use. The wires 5 pass through eyelets 6 in the dished member. A light bulb 14 in the electric circuit housed within the dished member emits light through perforations or serrations or the like holes in the member. The cover 2 has holes for attachment to a ceiling or other support and detachably screws on to the dished member.
Patent GB-1407023-A (GB)
Title: Flow control valves
IPC: B65D5/72
Filed: 1972-03-16
Abstract: 1407023 Controlling hopper discharge MUCON ENG CO Ltd 27 April 1973 [16 March 1972] 12388/72 Heading B8S [Also in Division F2] A flow control valve for mounting in the wall 13 of a box and opening to enable the contents therein to be dispensed comprises a pair of plates 1, 4 having coincident apertures 2 and an elastic sleeve 7 folded back on itself, one end attached to the plate 1, the other to the plate 4 thereby producing mutual pressure between the surfaces of the plates, such that on rotation of an extension 6 of the plate 4 relative to the plate 1 the sleeve 7 thrusts progressively to form a tight diaphragm across the aperture 2 and the friction between the plates prevents the valve from opening. Pressure (C) may also be induced between the sleeve and the plate 7 (Fig. 3, not shown). The configuations of the plates may be varied (Figs. 4, 5, not shown).
Patent GB-167283-A (GB)
Title: Cooking apparatus
IPC: A47J37/04
Filed: 1920-05-04
Abstract: 167,283. Percival, S., (De Matteis Broiler System Co., Inc.). May 4, 1920. Grilling-stoves; supports for articles to be heated.-In a boiler or toaster the food is carried, by hanging grids and/or on removable spits which are attached to a revolving frame 6, between inner and outer radiant heaters 4, 5, the heaters preferably comprising refractory tubular members in which is burned the gas supplied by curved perforated burner pipes 7, 7<a>, 7b. The cooking chamber 3, which is flanked by ovens 8, is open-fronted, and has a refractory lining 12, adjacent to which are arranged .the tubular heaters 5. The heaters 4, 5 are preferably arranged in opposed semicircles, although they may overlap if desired, the heaters 4 being arranged in proximity to a circular refractory wall 13. The main gas supply pipe is branched at 27, 33, 34, the central vertical branch 27 forming the bottom axle of the frame 6 and supplying, through radial pipes 31, the curved burner pipes 7 of the heaters 4. The branches 33, 34 pass vertically up the sides of the chamber 3 and feed the burner pipes 7b of the heaters 5, the branch 34 passing vertically and centrally downwards from the top of the chamber to form the upper axle of the frame 6, air mixers being suitably provided at the junctions of the supply pipes and individual burner pipes. The frame 6 comprises upper and lower spiders, which are connected by vertical members 17, each spider consisting of spokes 15 united by a hoop 16. The grids are provided with upper projections 20 which engage with hooks 18 on the vertical members 17, and with lower projections 21 which support detachable drip-trays 39 and prevent the grids from swinging inwardly. A spit 65 comprises three prongs, on which the food is impaled, and a bridge piece 60, the central prong 56 being elongated and engaging with an upper bearing 47. Attached to the top hoop 16 and terminating at its lower extremity is a drip tray 59 to which is attached a handle 57 and a spindle 58, which is provided with a square end which rests in a central socket in a gear wheel 52. The wheel 52 is revolubly mounted in bearings 44, 49 attached to the lower hoop 16, and engages with a stationary rack 55 whereby the spits are rotated. The frame 6 is mechanically rotated through a worm and worm-wheel 24, 25, and is supported on rollers 28. Cocks 30, 37 are provided to regulate all or some of the burners, and a common drip-pan 38 is placed in the bottom of the chamber 3.
Patent GB-939104-A (GB)
Title: Improvements in or relating to the manufacture of phosphors
Inventor: KING WILLIAM GODFREY
IPC: H01J9/20
Filed: 1960-04-07
Abstract: Plate-like crystals of alkaline earth metal phosphate such as CaHPO4 are made by precipitating a phosphate or phosphates of the alkaline earth metal or metals by mixing an aqueous solution of ammonium phosphate with an aqueous solution of a water soluble salt or salts, e.g. a halide, of the metal or metals of a concentration not greater than 1,5 moles per litre, the concentrations of the respective solutions being such that the concentration of the mixed solution is also not greater than 1,5 moles per litre, filtering the suspension of precipitate so formed and washing and drying the precipitate.  The concentrations can each be less than 0,5 moles per litre.  The mixed solution can be fed under pressure through a hydro-cyclone or the two solutions can be mixed continuously by being fed simultaneously into a hydro-cyclone under pressure, precipitation occurring immediately before the mixed solution enters the cyclone and stirring being effected by the vortex action of the cyclone, two fractional precipitates being obtained from the cyclone.
Patent GB-631357-A (GB)
Title: Improvements in and relating to counters
IPC: G06M1/04
Filed: 1947-05-07
Abstract: 631,357. Games-scoring devices. SURDEZ, F. May 7, 1947, No. 12399. Convention date, May 8, 1946. [Class 132 (ii)] [Also in Group XIX]  A games scorer comprises four separate counter wheels 4 each operated by a respective push-button 2, the whole being mounted in a case 1 similar to that of a wrist watch. Each push-button operates a spring lever 3 provided with a pawl. Excess movement of the counter wheel is prevented by the engagement of the spring lever 3 with a detent 5. The normal position of the spring lever 3 is determined by a stop 9. The face of the device carries various legends adjacent the counters.
Patent GB-1382534-A (GB)
Title: Apparatus for producing cold at temperatures below 1degree k
IPC: F25B9/12
Filed: 1973-03-15
Abstract: 1382534 Refrigerating PHILIPS' GLOEILAMPENFABRIEKEN NV 15 March 1973 [18 March 1972] 12416/73 Heading F4H In a refrigeration system operating by circulation of <SP>3</SP>He through a duet 2 into <SP>4</SP>He in a first mixing chamber 1, the mixture passes to an evaporator 4 through a duct 3 from which evaporator the <SP>3</SP>He is vaporized and exhausted through an outlet 5. The <SP>4</SP>He passes from the evaporator through a first superleak 10 in the evaporator which communicates with a heated space 11, a cooler 14 and further, secondary superleaks interspersed with heat exchangers 6 to 9, chamber 1 and heat exchanger 17 to pass the <SP>4</SP>He into a second mixing chamber 19 arranged at a level above that of the first chamber to mix with <SP>3</SP>He-rich mixture therein for producing cold and the resultant mixture drops through a duct 18 into the chamber. A temperature of below 1 K. is achieved in the chambers 1, 19.
Patent GB-180873-A (GB)
Title: Improved stop-motion mechanism for knitting machines
IPC: D04B35/10
Filed: 1921-04-30
Abstract: 180,873. Wilcock, Wood, & Co., Ltd., Holroyd, J., and Bennett, S. J. April 30, 1921. Stop - motions. - Relates to stopmotions for circular machines, acting on breakage or failure of the yarns c and used in connection with the stop-motion described in Specification 141,476, which is put in action by the occurrence of faulty knitting. Detectors a pivoted at a<1> to levers b are each normally supported in an horizontal position by the yarns c which pass round overhead rollers with self - threading wire loops before proceeding to the needles, this arrangement ensuring a large reserve of thread. On breakage or failure of a yarn c, the corresponding detector a falls to the position a<2> against a stop x<1> and in the path of a cam d on a continuously rotating shaft g. The levers b and shaft f are thus rocked and an upper lever p on the shaft f slides a notched bar p<2> pivoted to it to the left and allows a stepped part p<5> to drop off the edge of a slot in a supporting-guide p<3> for the, bar p<2>, the end of which then engages a spring arm 7, trips a lever 8, and stops the machine. The elongated notch p<4> allows the bar p<2> to be pushed still further to. the left by the attendant when starting-up the machine, to move all the levers a clear of the cams g.
Patent GB-118113-A (GB)
Title: Improvements in or relating to Automatic Train Control Systems.
Inventor: ELOI RODOLAUSSE
IPC: B61L3/10
Filed: 1918-07-31
Abstract: 118,113. Rodolausse, E. July 31, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Track apparatus for stopping trains and actuating signals other than on trains.-The train brakes are applied if a circuit is closed between a fixed inclined track conductor band a plough carried by the train and moved by a centrifugal governor to positions corresponding to different speeds. The conductor b is positioned and inclined according to the speed allowable at the part of the track concerned. The circuit to the conductor b may be controlled by a switch f closed by the signal g and a signal j in the cabin station indicates whether the circuit is complete. An additional conductor c may be provided. Energy may be supplied from a traincarried source, and the circuits may be controlled by the signals of a block system. Means may be provided to indicate at a distant point whether the driver has adhered to the reduced speed prescribed.
Patent GB-125189-A (GB)
IPC: F23D99/00
Abstract: 125,189. Toogood, H. J., and Dempster & Sons, R. March 11, 1918. Retort furnaces.-In a bench setting for gas retorts, the gas and air are delivered vertically into the combustion space to form vertical flames along the sides of the retorts. The gas from the producer is supplied through ports 3 in longitudinal channels 17, while the air from the regenerator is delivered through adjacent ports 7 in similar parallel channels 18. The frames are formed vertically along the inner sides of the retorts. and the products of combustion pass downwards to the regeneratorts along the outer sides. The cross walls of the setting are solid between the tiers or retorts, but are perforated at 20 where the gases flow downwards. The setting is divided along its length into a number of zones, say eight, each connected to its own regenerator, and the supply of secondary air is controlled at the inlet, and the draught by a damper near the waste-gas outlet of the regenerator. The air inlets to the regenerators are arranged at a lower level than the dampers controlling the exit of the waste gases. To provide facilities for cleaning, openings 28 are provided on a level with the gas and air ports, and the channels 17, 18 are extended through the end walls. In the gas-producer, an arch, built above the stepped grate 1, terminates in a vertical wall 21, the lower end of which is below the normal level of the coke. The charging-lid is double, being formed with outer and inner closures 23, 24 respectively. Steam may be delivered into the outlet mouthpieces of the retorts to produce water gas from hot coke simultaneously with the production of gas from freshly charged coal.
Patent GB-397436-A (GB)
Title: Hair cutting, combing and shaving device
IPC: B26B21/02
Filed: 1933-04-29
Abstract: 397,436. Safety-razors ; hair combs. SEILAZ, L., 2, Paradeplatz, Zurich, Switzerland. April 29, 1933, No. 12540. [Classes 30 and 131.] A device for trimming, shaving, or combing the hair comprises a blade 3 adjustably arranged between combs 1; 2 pivoted at one end on a pin 9. The front end of the blade is adapted to rest in an inclined groove 4 of the comb 1 and the handle end 17 of the blade has an inclined slot 11 wherethrough the pin 9 passes. The groove 4 is formed by bending over the end of the comb 1 and it may also accommodate the comb 2. The cutting edge 13 of the blade may be adjusted parallel with the tip line 15 of the comb 1 by means of a set screw 20 in a projection 19 of the comb. The pin 9 is provided with a tightening nut 10. The blade may be used with one comb only being adjusted beyond the tip line for shaving or behind the teeth for cutting and the combs may be used without the blade. The correct angle for stropping the blade may be obtained by fitting a tubular guide piece on the back of the comb.