baber/WOPTO huggingface dataset:
Patent GB-869772-A (GB)
Title: Air spring control valve
IPC: B60G17/052
Filed: 1959-05-08
Abstract: 869,772. Maintaining constant height of road vehicles. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. May 8, 1959 [Oct. 21, 1958], No. 15907/59. Addition to 838,810. Class 108(2). A level-control valve 10 is adapted to maintain a road vehicle at constant height at either of two different selected levels. The valve 10 comprises a combined inlet and exhaust valve element 46 which in the normal position of the vehicle is adapted to seaf jointly on a shoulder 47 of the casing and a seat formed on the end of a member 50 to close a passage 51. The member 50 is formed with a piston 56 slidable in a cylinder 58 which is connected by a conduit 32 with a valve 28. The latter is also connected to atmosphere at, 34, and by a conduit 30 to a conduit 24 leading from the source 22 of compressed air to a connection 26 at the top of the casing 10. As shown in Fig. 1, the valve, 28 is set in accordance with the lower of the two desired riding levels of the vehicle and thus closes the conduit 30 and connects the conduit 32 with atmosphere. Since atmospheric pressure thus exists in cylinder 58, the member 50 is downwardly urged by a spring 80 so that the upper face of a slot 60 formed in the member 50 engages with the upper surface of a cam 62. The latter is adapted to be rotated by a lever 18 on relative movements occurring between the axle 16 and the vehicle frame 14. When the vehicle loading increases above the normal, the member 50 is thus raised and lifts the valve 46 to permit air from the connection 26 to pass through a one way valve 42 past the valve 46 to a connection 12 leading to the air spring 11. When vehicle load decreases, the member 50 is lowered and air from the springs passes via the connection 12 into the passage 51 within the member 50, and thence to atmosphere via a porous plug 53a. When it is desired to maintain the vehicle at the upper of the two riding levels, the valve 28 is set to its second position in which it connects the conduit 32 to the conduit 24 and closes the outlet to atmosphere. Pressure applied in the cylinder 58 thus raises the member 50 so as, to lift the valve 46 and permits air to pass to the spring 11 until the lever 18 is rotated into a position in which the lower face 66 of the cam 62 lowers the member 50 into the position shown in Fig. 3. The vehicle height is then regulated at the new level as described previously.
Patent GB-748145-A (GB)
Title: Improvements in or relating to the production of nitrocellulose
Inventor: FURLONG RONALD ARTHUR
IPC: C08B5/02
Filed: 1953-06-10
Abstract: Nitrocellulose which dissolves rapidly in solvents therefor and has the form of nitrated cotton linters is produced from subdivided sulphite woodpulp sheet by nitrating pieces of the woodpulp sheet, adding water to produce a slurry of the nitrated wood pulp, and passing the slurry between two opposed, substantially parallel, surfaces of a mill rotating relatively to one another and so spaced from one another as to be capable of effecting the separation of the fibres of the nitrated pieces of sheet without subdividing the fibres to any substantial degree. Thereafter viscosity reduction and stabilization of the resulting separated fibres of nitrocellulose is effected in known manner. The aqueous slurry of nitrated pieces of woodpulp sheet may be passed several times between the opposed surfaces of the mill. Normally the type of mill used is that in which one plate is fixed and another rotates while the material to be milled is fed in through the centre of the stationary plate and removed at a point on the periphery.  Grooved plates in which the grooves are deep at the centre and decreased in depth to the periphery are preferred. The nitrated product may be milled before, during or after the preliminary washing stage, but milling must take place before boiling or kiering.  In an example sulphite woodpulp sheet, dried into pieces about one-eighth inch square, is nitrated, and the nitrated product is drowned and transferred to a vat, from which the liquor is drained off; the nitrated product is washed with water, drained and mixed with sufficient water to give a slurry containing one part of nitrocellulose per six parts of water, which is fed to a "disc-plate" mill.  The bulk of the water is drained off from the milled product and the nitrocellulose, in the form of a slurry containing 10 parts of water per part of cellulose, is kiered at 142 DEG  C. and 40 lb/sq. in., washed and dewatered by centrifuging.  The product can be rapidly and completely dissolved in normal manner in the usual solvents.
Patent GB-439182-A (GB)
Title: Improvements in or relating to self-filling fountain pens
IPC: B43K5/04
Filed: 1934-05-30
Abstract: 439,182. Fountain pens. ANDREWS, A. E., and BAILEY, H. S., Tudor Grove, Well Street, Hackney, London. May 30, 1934, No. 16108. [Class 146 (iii)] In a self-filling fountain pen, the ink is contained in the barrel and no valve is provided, the pen comprising a barrel 11 which is openended during manufacture, a sac 29 secured to the upper end of the barrel and separated from the barrel by a partition 17 through which passes a stationary air-tube 51 extending and opening into the lower end of the barrel, an aperture 55 of considerably smaller crosssection than the air-tube being also formed in the partition. The lower end of the air-tube may be spaced from the feed-bar or, to facilitate assembly, its end may abut against the bar and be chamfered off to provide communication with the interior of the barrel. The sac is enclosed in a cover 23. The aperture 55 may be formed as a shallow recess in the outer wall of the tube 51 or in the wall of the opening in the partition 17. In a modification, the sac may be adapted to be deflated by a plunger sliding in the end of the cover 23, the plunger being normally held in sac-deflating position by means of a cap screwing on to the cover but being under the influence of a spring tending to force it outwardly. In a further modification, the sac is provided at its closed end with a nodule which is secured to the plunger.
Patent GB-1335259-A (GB)
Title: Film cutter supporting box for dispensing packaging film with protective mounting for the cutter
IPC: B65D85/672
Filed: 1971-05-21
Abstract: 1335259 Roll holders BORDEN INC 21 May 1971 [25 June 1970] 16184/71 Heading A4G [Also in Division B4] A rectangular container 18 having a lid 22 and tuck in flap 26 is provided with an insert having a front panel 40 adjacent the container front 16 and side panels 44 apertured to receive journals 48 supporting the ends of core 36 of a roll of e.g. plastics sheet 34 dispensed through a lid slot 30 and cut on cutter 50 hingedly supported on panel 40 to stand up above the lid top when backed by flap 26 and able to fold into the container along a score line 41 in panel 40 and be protected by the lid for packaging, flap 26 then entering between front 16 and panel 40.
Patent GB-517309-A (GB)
Title: Improvements in, or relating to, fittings for controlling the flow of fluids
IPC: C02F1/68
Filed: 1939-06-02
Abstract: 517,309. Valves. ECONOMIC WATER SOFTENERS, Ltd., and GOLDER, H. C. June 2. 1939; No. 16224. [Class 135] [Also in Group I] A flow-control fitting for a water-softener or other fluid-treating appliance is connected to or embodied in a tap and is formed as shown in Figs. 2 and 4 with a main passage a' having two branches b, c which are connected to the inlet and outlet of the softener and are provided with valves d, e which are so adjustable that water can flow directly or through the softener to the discharge opening a<2> or, for reverse flushing, can flow through the passage c and out of the top of the softener. The valves preferably consist of rotary plugs formed with T-passages k. The valve b is provided with a hand-lever d<3>, and the valve e is formed with a square aperture for receiving a tool, preferably a projection on the detachable cap of the softener. The valves are provided with movementlimiting pins f<1>, and have marks which are set with reference to indicia such as "Soft." The valves may be interlocked by-means of discs g. mounted thereon and formed with arcuate recesses g<2>, g' so arranged that the valve e is normally locked in the position shown in Fig. 4, whilst the valve d is locked when the valve e is adjusted for reverse flushing.
Patent GB-1244681-A (GB)
Title: Improvements in the electrolytic deposition of ferromagnetic coatings
Inventor: FAULKNER JOHN PATRICK
IPC: H01F41/26
Filed: 1969-03-27
Abstract: 1,244,681. Magnetic recording media. BURROUGHS CORP. 27 March, 1969 [29 Jan., 1969], No. 16230/69. Addition to 1,244,503. Heading H1H. [Also in Division C7] A ferromagnetic coating (e.g. of Co-P or Co-Ni-P) is deposited solely by electrolysis on an electrically conductive carrier by the method of the parent Specification modified by providing as the source of phosphorus both hypophosphite and phosphite ions and controlling the hypophosphite ions in the range up to 4 g./1. and the phosphite ions in the range up to 12 g./1. by determining and adjusting their concentrations to obtain a predetermined coercivity in the ferromagnetic coating. The hypophosphite and phosphite ions may be derived from H 3 PO 2  and H 3 PO 3  or their respective Na, K, Ca or NH 4  salts. Other differences from the parent Specification are: the pH can be maintained by the addition of nickel carbonate, K 2 CO 3 , Na 2 CO 3  or H 2 SO 4 . The bath may be agitated adjacent the surface being plated. The coatings deposited may have thicknesses of 5 to 500 millionths of an inch. A recording density of 3000 binary bits per inch can be achieved on films produced by the method.
Patent GB-1422783-A (GB)
Title: Containers for cryogenic liquids
IPC: F17C3/02
Filed: 1972-04-07
Abstract: 1422783 Cryogenic tanks APPLIED RESEARCH & ENG Ltd and C S BLAKE 24 April 1973 [7 April 1972] 16276/72 Heading F4P A cryogenic container comprises an open inner tank 10 composed of material impervious to cryogenic liquid, and an outer tank 11 having an external heat insulating layer 19, the outer tank 11 enclosing the inner tank 10 from the atmosphere and being lined internally by material 18 which is impervious to cryogenic liquid. Instead of the two tanks having a common floor, the inner tank may be raised above the floor of the outer tank, and the inner tank may have a domed, open, top (Figs. 2 and 3, not shown).
Patent GB-856312-A (GB)
Title: Improved pelleting process
Inventor: DAVIDSON JAMES
IPC: C08J3/22
Filed: 1958-05-21
Abstract: Organic chemicals which are vulcanisation accelerators, retarders, or antioxidants, for addition to rubber mixes, are obtained in the form of pellets or granules by mixing the substance with a binding agent containing a polymer of a compound p  of the formula CH2=CHOR wherein R stands for a hydrogen atom, a hydrocarbon radical or an acyl radical.  The binding agent is preferably present in an amount not more than 5% of the weight of the organic chemical and the ingredients may be mixed in aqueous dispersion.  In examples, specified binders are polyvinyl acetate, to which a copolymer of butadiene with methyl methacrylate may also be added, polyvinyl alcohol, and polyvinyl methyl ether; and specified chemical substances are 2-mercaptobenzthiazole, dibenzthiazyl disulphide N-cyclohexyl-benzthiazyl-2-sulphenamide, tetramethylthiuram disulphide, tetraethyl thiuram disulphide, zinc diethyl dithiocarbamate, diphenyl guanidine, di-o-tolyguanidine, and zinc mercaptobenzthiazole; and sodium chloride, sodium sulphate and a plasticizer such as dibutyl phthalate may also be added.
Patent GB-370729-A (GB)
Title: Improvements in means for supplying air to furnaces for bakers' ovens
IPC: A21B1/00
Filed: 1931-06-04
Abstract: 370,729. Supplying air to furnaces. TITZ, R., 43, Waldhausenerstrasse, and POSCHEN, H., 48, Waldhausenerstrasse, Gladbach, Munich, Germany. June 4, 1931, No. 16298. [Class 51 (i).] Air is supplied above the firegrate of a baker's oven through a sinuous channel b formed in a single block a located in the arch above the furnace door. The air is controlled by a damper e.
Patent GB-1461850-A (GB)
Title: Machine for producing casting sand mould parts
IPC: B22C11/10
Filed: 1974-04-11
Abstract: 1461850 Casting sand moulds S OTAKI 11 April 1974 16385/74 Heading B3G A machine for shaping sand moulds has a central support 2 carrying a pressure chamber 8, a rear support 3, an intermediate platen 7 between the two supports and a front platen 6, the two platens being movable on guide means 11 towards and away from the central support by respective actuators to compress sand supplied to the pressure box by hopper 9. The front platen has an aperture and has a pattern plate 4 which is pivotable between a position in which it covers the aperture and faces the central support and a position in which the aperture is exposed to permit the ejection of the formed mould by a rear pattern plate 5 movable independently of the intermediate platen.
Patent GB-929218-A (GB)
Title: Process for preparing vinyl chloride
Inventor: BRACONIER FREDERICK FRANCOIS A
IPC: C07C17/25
Filed: 1961-05-05
Abstract: Vinyl chloride is prepared by thermally decomposing 1,2- or 1,1-dichloroethane in the vapour phase in the presence of crystalline carbon, i.e. graphite, preferably in the form of bars, preferably disposed lengthwise in the pyrolysis tube, adjacent bars being in lateral contact with each other.  The temperature is preferably not higher than 600 DEG C. (advantageously about 450 DEG C. for pyrolysing 1,2-dichloroethane) and the pressure preferably not higher than 40 atmos.
Patent GB-315539-A (GB)
Title: Improvements in and relating to vessels for aerated beverages and the like
IPC: A47G19/22
Filed: 1928-06-06
Abstract: 315,539. Mitchells & Butlers, Ltd., Butler, H. A., and Russell, C. June 6, 1928. Drinking -vessels have the inner surface of the bottom or lower portion scratched with a diamond, glass-cutter, &c., to produce sharply cut edges in order to promote the liberation of gas from carbonated or aerated beverages.
Patent GB-145441-A (GB)
Title: Improvements in and relating to the propulsion of bodies by jets
IPC: F02K7/12
Filed: 1920-06-18
Abstract: 145,441. Silva, R. R. da, and Madeiros e Albuquerque, J. de. Nov. 5, 1918. [Convention date]. Propelling by fluid jets. In propelling means of the kind in which a high pressure fluid jet is directed through a series of injectors and the velocity of the jet is gradually reduced and its volume increased by the air drawn into the jet. the jet is discharged over a large area through a funnel-shaped outlet containing eddy-destroying planes. Fig. 4 shows a combustion chamber surrounded by insulating-material 9 in a container 10, fuel and air under pressure being introduced through a burner 14. The resulting combustion products issue from a jet 16 past a series of injector shells 17, 20, 22, and are expanded in a funnel-shaped member 23 having distributing and eddy-destroying planes 24. Two such jets may be supplied from a common combustion chamber fed with fuel from a tank by means of compressed air from a pump driven by an engine in the fuselage. The final velocity of the jet should be less than twice that of the aircraft.
Patent GB-357617-A (GB)
Title: Wire joints and wires for electricity transmission
IPC: H01R4/20
Filed: 1930-05-28
Abstract: 357,617. Cables ; joints. BRITISH DARDELET THREADLOCK (D. D. G.) CORPORATION, Ltd., 42, Kingsway, London. - (Assignees of Soc. Francaise de Filetage Indesserable D. D. G.; 37, Boulevard Haussmann, Paris.) May 28, 1930, No. 16525. Convention date, June 1, 1929. [Classes 36 and 38 (i).] Solid conductors 10 having cross sections in the form of an archimedean spiral line are united by a hollow coupling sleeve 11 of which the internal profile is a similar spiral, the interfitting portions being frictionally gripped when the parts are relatively twisted. A cement filling 16a completes the joint. Reference has been directed by the Comptroller to Specifications 280,556, and 298,219 (as open to inspection under Sect. 91 of the Acts), [both in Class 38 (i), Electric couplings &c.].
Patent GB-883290-A (GB)
Title: Semiconductor devices
IPC: H01L21/60
Filed: 1960-05-11
Abstract: Solder compositions mentioned in connection with the manufacture of a semi-conductor device, (see Group XXXVI) include by weight, 90% lead-10% antimony; 82% lead 15% antimony, 3% tin; 78% tin, 9% aluminium, 8% zinc, 5% cadmium; 67% tin, 32% lead, 1% indium; 54% gold 32% silver, 14% copper.
Patent GB-1498768-A (GB)
Title: Electronic clock with capacitive resetting
IPC: G04G21/08
Filed: 1976-04-23
Abstract: 1498768 Touch responsive switching systems R MARTINET 23 April 1976 [25 April 1975] 16702/76 Heading GIN [Also in Division G3] A digital electronic clock is energized from A.C. mains and derives timekeeping pulses at 1 Hz and setting pulses at 4 Hz from the mains frequency, and uses touch responsive keys for setting the time indication. In Fig. 1, pulses at 100 Hz are derived by a transistor 4 from the 50 Hz mains. A frequency divider chain of binary counters 5, 5', 6 provides 1 Hz pulses from 6 and 4 Hz setting pulses from 5'. The 1 Hz pulses are applied via an OR gate 10s to increment a seconds counter 7 SU . Carry pulses from a tens of seconds counter 7 SD  are applied via an OR gate 10M to a minutes counter. Similarly hours counter 7 HU  is incremented via an OR gate 10 H . The contents of the counters 7 are de-coded by de-coders 8 and indicated on 7-segment luminous display devices 9. Setting To rapidly set the minutes display for example, a key 111M is touched, whereupon the base of a transistor 113 M  receives a 100 Hz signal induced capacitively in the user's body by rectified mains current supplying the clock. To avoid maloperation due to stray signals, there may be provided a member 116 connected to the pulse generator; the user when setting, bridges 116 and a key 111 with one finger. The collector current of transistor 113 M  sets a multi-vibrator 114 M , which remains in that state for so long as the key is touched and the set output of which opens an AND gate 115 M  to pass the 4 Hz setting pulses via OR gate 10 M  to the minutes counter 7 MU  to rapidly advance it. A circuit 12 comprises a first monostable which synchronizes the 1 Hz and 4 Hz pulses so that all of the 1 Hz pulses coincide with pulses in the 4 Hz signal and a second monostable which makes the width of the 1 Hz pulses equal to or less than the setting pulses width. The timekeeping and setting pulses are both received by respective counter during setting but the timekeeping pulses are ignored since they are coincident with some of the setting pulses. The capacitive keys are of metal inserted into the plastics casing of the clock during the moulding thereof. Both 12-hour and 24-hour time indication is envisaged.
Patent GB-219961-A (GB)
Title: Improvements in machines for spinning and winding artificial filaments
IPC: D01H1/06
Filed: 1924-07-11
Abstract: 219,961. Fabrique de Soie Artificielle de Tubize Soc. Anon. Aug. 2, 1923, [Convention date]. Cap frames; building-motions; poker guides and spindle and lifting rails; driving arrangements. - Cap frames for spinning and winding artificial filaments, such as artificial silk, are provided with two rows of spindles, which are driven independently so that one row may be doffed while the other is operative, and the lifter rails 15, 16 balance each other and are reciprocated in opposite directions by pokers 20, 21 connected by chains or cables to pulleys 18 on an oscillating shaft 17. The pokers are guided by the spindle rails 7, 8 and brackets 22, 23, and the rails 15, 16 slide on guides 26, 27 on the framework. The tin rollers 35, 36 are driven by electromotors or by a single driving-gear and clutch mechanism.
Patent GB-661563-A (GB)
Title: Improvements in or relating to circuits for generating sawtooth waveforms
Inventor: ELL CHARLES LESLIE FAUD
IPC: H03K4/16
Filed: 1948-06-23
Abstract: 661,563. Saw-tooth generating circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 2, 1949 [June 23, 1948; Aug. 19, 1948], Nos. 16806/48 and 21895/48. Class 40 (vi). A saw-tooth wave of desired linearity or curvature is generated by charging two capacitors and discharging them through different electrodes of a valve, integrating one of the saw-tooth waves, thereby produced and adding it to the other. A capacitor 4, Fig. 1, of the Provisional Specification is charged through a resistor 2 and rapidly discharged by a valve 1 arranged in a blocking oscillator circuit. The saw-tooth wave generated at the grid is integrated by means of a resistor 12 and the capacitor 4, thereby linearizing the saw-tooth voltage produced across this capacitor. Resistor 12 may be connected either to the anode as shown or to a further capacitor connected between the lower plate of capacitor 4 and earth Fig. 4 (not shown). In Fig. 5 the separate saw-tooth wave is generated by charging a capacitor 22 through a resistor 21 and partly discharging it through the screen-grid cathode path of the blocking oscillator valve so that the potential applied to a resistor 20 and a capacitor 19 is composed of a steady component and a superimposed saw-tooth component. The output is applied through a coupling circuit 24, 25 to the succeeding apparatus 23 and the synchronizing signal is fed to winding 26. The saw-tooth wave generated at the screen grid may be applied instead to the control grid to increase the linearity of the wave fed from the grid to the output capacitor in the Fig. 1 circuit.
Patent GB-1427007-A (GB)
Title: Gas detection
IPC: G01N30/00
Filed: 1972-12-12
Abstract: 1427007 Valves DEFENCE SECRETARY OF STATE FOR 8 May 1973 [12 April 1972] 16812/72 Heading F2V [Also in Division G1] A multi-position valve assembly for use in vapour detection apparatus comprises two discs 12, 14 of glass-filled polytetrafluoroethylene and of specified dimensions, disc 12 being rotatable through a limited angle by means of lever 20 and disc 14 being fixed relative to a framework or casing, the contacting faces of the discs having in them channels providing three different flow paths through the valve corresponding to three positions of disc 12 attained when lines 52, 54, 56 on disc 12 are aligned with line 58 on disc 14. In the embodiment of the drawings, with disc 12 of Fig. 2A superimposed on disc 14 of Fig. 2B, and line 52 aligned with line 58, a first flow path for atmosphere to be tested comprises tube 34, channels 64, 66 (channel 66 containing a heatable platinum coil), 68 and 70 while simultaneously there is formed a carrier gas flow path through tube 38, channels 72, 74, 76 and 78; when line 54 is aligned with line 58 and the assembly is in its second position there is a carrier gas flow path through tube 38, channels 74, 80, 82, 84, 86 and 64 and tube 34 and also through channels 72, 74, 76, 78; when line 56 is aligned with line 58 and the assembly is in its third position, there is a carrier gas flow path through tube 38, channels 72, 74, 80-86 and 64, 66, 76, 78. Lever 20 may be operated by means of a mechanized connection between the lever and a switch (26) used to close an electrical circuit for heating coil 22. The apparatus as a whole may be operated automatically using battery driven electric motor or spring-power.