baber/WOPTO huggingface dataset:
Patent GB-728392-A (GB)
Title: Process for making nitric oxide, and apparatus suitable therefor
Inventor: EDMONDSON PHILIP DAVID
IPC: C01B21/20
Filed: 1952-01-16
Abstract: Apparatus for carrying out gas reactions such as the production of nitric oxide from air comprises in series a first regenerator chamber, containing for example a pebble bed, a reaction chamber containing electric arc producing means, and a second regenerator chamber, valve gear being provided enabling periodical reversal of flow of gas through the three chambers.  As shown air is passed through heat regeneration chambers 2, then through reaction chamber 1 where it is heated to about 3000 DEG  C. by the passage of an electric arc, and then through heat regenerator chambers 3. Each regenerator chamber preferably containing a bed of refractory pebbles 4 as shown in chamber 2 although spaced refractory plates as shown in chamber 3 may alternatively be used.  Reversal of gas flow is effected by means of hinged shutters 5 and 6.  Air is supplied at a pressure of several atmospheres to inlet duct 7 by a main compressor 11 and an auxiliary compressor 13 connected thereto by a cooler 12. The auxiliary compressor 13 is driven by a gas turbine 14 in turn driven by gas from outlet duct 8.  The main compressor 11 is driven by a gas turbine 15 which also drives electric generator 20.  A combustion system 16 which supplies combustion product gases to the p <PICT:0728392/III/1> turbine 15 supplied with fuel via pipe 16 and air from compressor 11 via heat exchanger 17 where the air is heated by heat exchange with the exhaust gases from the turbine 15.
Patent GB-821723-A (GB)
Title: Improvements in and relating to electrical apparatus and devices for use therein
Inventor: NEVILLE GEORGE WILLIAM
IPC: H04M1/274
Filed: 1957-01-14
Abstract: 821,723. Impulse transmitters. TELEPHONE MANUFACTURING CO. Ltd. Jan. 13, 1958 [Jan. 14, 1957], No. 13 18/57. Class 40 (4). [Also in Group XXXVI] An impulse transmitter with a single multi-contact key K1-K2 for each of 20 PAX stations comprises a panel of insulating material having on either side a number of printed conductors 12, 16 which may be joined by removable connectors as at x, Fig. 4. A single key controls contacts K1 and a starting contact pair k, Fig. 5. When a key is operated relay ST comes up, relay DT responds to dial tone on the line connected to TA1, TA2 and is followed by MS to start a motor IM which operates impulsing contacts MT1- MT5 in sequence to produce ten pulses per second and open contacts MT5a twice per second. Four relay pairs MA, BA to MO, BO count the impulses from MT5a, the sequence of operation of relays BA to BD being BA; BA, BB; BC; BD; BA, BD; BA, BB, BD; BA, BB, BC, BD, making a sequence of seven operations controlled by the timing contacts MT5a. At the last operation, stop relay sp comes up, locks to the key k and restores the circuit to normal. From 0-5 impulses may be generated in each of the six intervals between successive operations but as an interdigital pause takes a whole interval there is some restriction on the number that can be transmitted. Initially, the line terminals are looped over contacts of all the relays BA to BD. At the successive operations, line terminal TA1 is connected to terminals TB2 to TB7, and by cross-connecting terminals TB2 to TB7 to terminals TB8, TB12 with the connecting panel, the number to be transmitted is determined. Thus, with the connections as shown, contacts MT1, MT2 are short circuited over TB2 at the first operation and only three impulses are transmitted during the first interval. The number transmitted is 327, the impulses transmitted in the six intervals being 3, 0, 2, 0, 2, 5.
Patent GB-711392-A (GB)
Title: Improvements in or relating to the production of the hydroperoxides of cumene and other alkyl-aromatic hydrocarbons
IPC: C07C409/12
Filed: 1952-01-18
Abstract: Hydroperoxides of cumene and other alkyl aromatic hydrocarbons containing a tertiary alkyl group are prepared by oxidizing the hydrocarbon with oxygen or an oxygen containing gas in the presence of the formate, oxalate or benzoate of an alkali or alkaline earth metal as a catalyst.  Preferably cumene, p-cymene, diisopropyl benzene or isobutyl benzene is oxidized at an elevated temperature by means of oxygen or an oxygen-containing gas in the presence of, for example, sodium or calcium formate, sodium or calcium oxalate or sodium benzoate and in the presence of a hydroperoxide suitably a small quantity of the hydroperoxide, which forms the reaction product, to initiate the reaction.  In examples, cumene, p-cymene and isobutyl benzene are oxidized to the corresponding hydroperoxides by air or oxygen in the presence of sodium formate, calcium formate, sodium oxalate, calcium oxalate or sodium benzoate.  Specification 610,293 is referred to.
Patent GB-783675-A (GB)
Title: Improvements in or relating to apparatus for indicating the surface finish of the face of gear teeth
IPC: G01B5/28
Filed: 1956-01-17
Abstract: 783,675. Gauging surface-roughness. BRITISH PETROLEUM CO., Ltd., and BARCLAY, I. DUFF-. Jan. 17, 1956, No. 1560/56. Class 106 (2). A roughness tester, particularly for gear tooth surfaces, is held at a variable radius by a pivoted arm and moved thereby along an arc about the pivot of the arm, mechanism being provided to cause the tester to traverse the surface at a controlled speed. A swinging horizontal arm 1 mounted on a vertical shaft 2 is adjustable vertically by fine-adjusting screw 5 co-operating with a clamp 4 and is given oscillatory movements by partial rotation of shaft 2 from a hand wheel 15 through an eccentric 9 and actuating lever 8. A slider 16 has an aperture containing a nut 17 loaded by springs 19, 20 on a screw 18 by means of which the slider 16 may be horizontally adjusted along the arm 1 to which it may be locked by plate 21 and screw 22. The pick-up head of the surface-roughness tester is held in a clamp at the lower, non-vertical end of an angular drop-arm 26 whose upper vertical portion is pivoted by a screw 29 to a lever 24 in turn pivoted at 23 to the slider 16. The lever 24 may be swung horizontally about the pivot 23 by a screw 25 and the lower-end of the drop arm may be moved in an arc by pivoting the drop-arm about the pivot 29 by means of a screw 28 co-operating with a pivoted lug 27. The gear to be tested is placed on a spigot 36 provided with a register 37 to fit the bore of the gear, the angle of the spigot being such that the root of the tooth under test will lie in a plane parallel to that of the traverse arc of the roughness tester. The gear is correctly located by means of a member 33 having a cross-section the same as the tooth gap and mounted for movement in a T-slot machined in a quadrant 31 at a radius corresponding to the mean radius of the ring-gear tooth gap. The depth of penetration of the member 33 into the gap is maintained constant for successive teeth by a stop 34. After setting, the gear is clamped in position by means of a clamp 38, washer 39 and nut 40, the roughness tester is adjusted into gauging position and then traversed over the tooth surface by rotating the wheel 15.
Patent GB-571808-A (GB)
Title: Surface hardening of steel
IPC: H05B6/36
Filed: 1944-01-28
Abstract: 571,808. Electric induction heating. STANDARD TELEPHONES & CABLES, Ltd. Jan. 28, 1944, No. 1621. Convention date, Feb. 5, 1943. [Class 39 (iii)] The edge 2 of a slot in a metal plate 1, which it is desired to harden, is heated by an inductor 3 comprising a loop of copper tube through which water passes, and which is supplied with a high frequency current of 2,000,000-30,000,000 cycles per second, e.g., 5,000,000 cycles. The magnetic flux penetrates the metal and heats it only to a depth of about .001 inch, and when the current is cut off the heated layer is quenched by conduction to the colder metal behind it. The inductor is placed closely adjacent to the edge to be heated, and current may be applied for about 1/5 second. Any straight or curved edge or other surface may be similarly heated. Specifications 472,310 and 484,316 are referred to.
Patent GB-807014-A (GB)
Title: Improvements relating to a method of forming a bonded glass fibre structure
IPC: C03C25/42
Filed: 1955-01-19
Abstract: A colloidal silicic acid, for use in bonding a glass fibre structure, has an SiO2/alkali ratio 60 : 1 to 130 : 1, a molecular weight greater than 500,000, and viscosity 1.15-1.55 at 10 per cent SiO2 in water at 25 DEG  C.  The colloidal silicic acid may be used in conjunction with organic resinous binders, e.g. phenol-formaldehyde resin.  In Example (3) a composition containing 10-25 per cent "A" Stage phenol-formaldehyde resin and aqueous silicic acid is sprayed on to glass fibres as they pass through a forming hood and form a mat.ALSO:A colloidal silicic acid for use in bonding a glass fibre structure has an SiO2 alkali ratio 60 : 1 to 130 : 1, a molecular weight greater than 500,000, and viscosity 1,15-1,55 at 10 per cent. Si O2 in water at 25 DEG C.  The colloidal silicic acid may be used in conjunction with organic resinous binders, e.g. phenol-formaldehyde resin, or inorganic cementitious materials e.g. magnesium oxychloride or oxysulphate, gypsum, plaster of Paris or Portland cement.  1-5 per cent. silicic acid may be used with the inorganic cementitious materials.  The coloildal silicic acid may be used with starch, polyvinyl alcohol, a glycol borate, or an organic borate containing amino groups.  The silicic acid may be modified by the addition of up to 50 per cent. inorganic earth filler, e.g. calcium carbonate.  In examples: (1) a staple glass fibre mat is heat cleaned, saturated with aqueous silicic acid containing 30 per cent. solid, and subjected to heat and pressure, e.g. at 350-600 DEG F.; (2) a phenol-formaldehyde bonded glass fibre mat is treated with a solution of a fatty acid salt of a quaternary ammonium compound, impregnated with an aqueous composition containing 15-30 per cent. silicic acid and 0,2-1 per cent. ammonium alginate, and baked; (3) a composition containing 10-25 per cent.  "A" Stage phenolformaldehyde resin and aqueous silicic acid is sprayed onto glass fibres as they pass through a forming hood and form a mat; (4) glass fibres are treated with a mixture of 70 per cent. aqueous silicic acid and 30 per cent. organic borates.
Patent GB-432008-A (GB)
Title: Improved means whereby the exit of passengers from a bus or other vehicle may be controlled by the driver or other authorized person
IPC: E05F15/02
Filed: 1935-01-17
Abstract: 432,008. Door fastenings. MORINNI, E. DE, Coldharbour, Dorking, Surrey.- (Morinni, J. L. R. de; 44, Rue la B÷Útie, Paris) Jan. 17, 1935, No. 1660. [Class 44] [See also Group XXXVIII] Electric door locks or signals on a vehicle are operated by a switch which is mounted on the handle of one of the control levers so that it must be operated when the handle is grasped. The circuit may have additional contacts operated by a rotating part of the vehicle. As shown in Fig. 1, when the lever 6 is moved towards the gear lever handle 4, the arm 5a makes contact with contact 2 and the lamp R is lit. If the knob 7 is depressed the lever 11 swings so that the knob 13 presses against the lower part of handle 6 and arm 5<a> leaves contact 2 and completes the circuit to the lamp G over contact 3. Additional contacts may be provided in the lamp circuits operated by a centrifugal device 24, Fig. 2. When the vehicle is moving contacts 17, 18 close to maintain the red lamp circuit and contacts 21, 22 open a further point in the green lamp circuit so that the red lamp is always lit whilst the vehicle is moving and the green lamp cannot be lit unless the vehicle is stationary. The electric door locks which supplement or replace the lamps are similarly connected.
Patent GB-195476-A (GB)
Title: Improvements in and relating to supply taps for petrol and like fuels
IPC: F16K11/083
Filed: 1922-01-19
Abstract: 195,476. Taylor, H. C. Jan. 19, 1922. Plug cocks; stops, adjustable. - A petrol tap having two inlet pipes for drawing from different levels, is provided with a stop which normally prevents the operation of the plug to allow the reserve supply to be drawn off. The body a is screwed into the under surface of the tank, and the two inlet passages d, e are adapted to draw off from different levels. The two passages d, e may be connected to a single outlet c by turning the plug so that either of the two passages b<2>, b<3> in the plug registers with the corresponding passage d or e. The plug is normally prevented from turning into register with the passage e by means of a spring- pressed plunger f which projects into the cut-away part of the washer h which rotates with the plug. Further rotation of the plug is only possible if the plunger f is retracted.
Patent GB-179975-A (GB)
Title: Improvements in and relating to concrete blocks and the like
IPC: E04B2/30
Filed: 1921-01-11
Abstract: 179,975. Wilkins, K. Jan. 11, 1921. Building-blocks.-A through-cavity building- block consists of two concrete members A, B kept parallel and at a fixed distance apart by metal rods, each member being formed with an undercut projection at each end, three faces of the projection being continuations of three of the faces of the member. The undercut portion mav be inclined to all the three faces as shown at 1, 2, or parallel to one face as shown at 3, 4. The undercut projections may also be formed with an interlocking tongue and groove; and, in addition, concrete keying-recesses 4<1>, 5<a> may be provided.
Patent GB-1028589-A (GB)
Title: Improvements in or relating to overhead travelling cranes
IPC: E04C3/07
Filed: 1964-01-15
Abstract: 1,028,589. Girders for overhead travelling cranes. G. L. F. SELAM. Jan. 15, 1964 [Jan. 17, 1963], No. 1750/64. Heading B8B. The girders 1, 2, Fig. 2, which support the crab of an overhead travelling crane each have a vertical web extending between upper and lower flanges which follows a zig-zag path when viewed in plan. Transverse stiffening gantries 5 connect the girders. Insulators 11, Fig. 3, for electrical supply cables are mounted on flat faces 9 of the web and brackets 13, which support a footbridge 16 with a hand rail 18, are mounted on alternate flat faces 9a. Figs. 5, 6, 7 show webs of alternate shapes. Reinforcing strips may be welded to the underside of the upper flange in contact with the faces 9, 9a. Alternatively the edges of the upper flange may be turned down and welded to the web which is suitably notched at faces 9, 9a.
Patent GB-496013-A (GB)
Title: Improvements in or relating to manoeuvring valves
IPC: F01D17/14
Filed: 1938-01-19
Abstract: 496,013. Manually - operated valves. COCKBURNS, Ltd., and GRANT, T. Jan. 19, 1938, No. 1754. [Class 135] A lubricating - oil valve in the control mechanism ofamanoeuvring valve is opened by that mechanism to supply oil to a pre-selected point or points in a forced lubrication system before the manoeuvring valve opens to a substantial degree and elements in an interlock means are moved out of interfering relationship with the control mechanism, to permit opening of the manoeuvring valve, only when a predetermined minimum oil pressure is established. An actuating nut 8, adapted to be moved up or down by a hand wheel 1 controlling manoeuvring valves 15, 16, by rotating a screw 28 on which the nut is mounted, is connected by a lever 5 to an oil valve 2 forming part of a forced lubrication system. The opening of the valve admits oil to one of two pistons according to whether the nut is to move upwards or downwards and as pressure builds up behind the piston, a spring pressed catch is moved out of the path of the nut which can then actuate the appropriate manoeuvring valve 15 or 16 through a twin lever 12 pivoted at 23 to the valve chest 25. The oil valve 2 may be actuated directly instead of through the lever 5.
Patent GB-102288-A (GB)
Title: Improvements in Fireplace Fixtures.
Inventor: HAIGHTON ALBERT
IPC: F24B1/193
Filed: 1916-02-08
Abstract: 102,288. Haighton, A. Feb. 8,1916. Grates; ashes, collecting; trivets.-A front grate b is pivoted at its lower end so that it may be placed vertically, or may be inclined to enable the fireplace to be used as a barless grate. The grate is supported in its vertical position by snugs or projections c on the cheeks a, and is moved into and out of them by lifting the grate, the pivots e being fitted in elongated slots f to enable this to be done. Alternatively, the grate b may be supported by pivoted catches. With this grate is fitted a fixed inclined plate g, but preferably this plate, which serves to catch the ashes from the front of the fire, is similarly pivoted to the cheeks a, and may similarly be brought from the horizontal position, in which it is held by brackets k, into an inclined position, in which it is held by the engagement of its edge i with projections j. The plate g may also support cooking- utensils &c. The space beneath the lower edge of the plate g is enclosed by a plate with a hit-andmiss draught-regulator.
Patent GB-552542-A (GB)
Title: Improvements connected with the bearings of rolling mills, mixers, calenders, or like apparatus for acting on rubber or like mixes or masses
IPC: B29B7/68
Filed: 1942-02-12
Abstract: 552,542. Bearings. BRIDGE & CO., Ltd., D., and BROWN, J. Feb. 12, 1942, No. 1856. [Class 12 (i)] In rolling mills and mixers for rubber and like masses the bearings of the rear roller are anchored by tie-bolts engaging the frame with resilient means interposed between the bearing and the frame and engaging a plunger device. The bearings b<SP>1</SP> of the rear roller are self-aligned by a resilient buffer d engaging a rounded projection or plunger c. The rubber buffer is carried by the bearing and the projection by the frame A, or vice-versa. The bearing is held to the frame by tie-bolts e seated in conical passages e<SP>1</SP> and provided with spring washers.
Patent GB-290539-A (GB)
Title: Improvements in radio high tension batteries
IPC: H01M6/42
Filed: 1928-01-20
Abstract: 290,539. Sachs Ges., R. Dec. 1, 1927, [Convention date]. Battery with reserve group of cells; cases; connections.-A high tension battery from which various voltages may be tapped off by plug connections in the usual way has the cells arranged and connected so that two similar groups of cells a, b are provided, either of which may be used at will in series with the remaining cells c so that one group serves as a reserve for the other. As shown the positive electrodes of the last cells in groups a, b are connected to the negative electrode of the first cell in group c so that by making one plug connection to the first cell in group a or b as desired that group is brought into use, the other connection being made to the appropriate cell in group c. Fig. 3 shows an arrangement in which a group d of cells is provided in front of groups a, b, the last cell of group d having a connector e which can be connected to group a or b as desired, the tapping connection being made with group d and the appropriate cell of group c. Two or more reserve groups may be provided for.
Patent GB-778527-A (GB)
Title: Improvements in and relating to concrete blocks
IPC: E04B2/42
Filed: 1956-01-19
Abstract: 778,527. Building blocks. O'CONNELL, J. Jan. 19, 1956 [April 22. 1955]. No. 1892'56. Class 87(1) A concrete &c. building block is provided with a central row of vertical apertures 6, a parallel row of blind vertical cavities 3 on each side of the first row, and a central groove 7 in each end face of the block. The cavities and apertures are arranged in staggered relation. A central longitudinal recess 11 with a small channel 12 may be provided in the upper face of the block.
Patent GB-361703-A (GB)
Title: Improvements in and relating to ball cocks or valves for tanks cisterns and the like
IPC: F16K33/00
Filed: 1931-01-20
Abstract: 361,703. Ball-and-float valves. MERTENS, G., Griffinhurst, Eastcote, Middlesex. Jan. 20, 1931, No. 1906. [Class 135.] In order to effect a vertical adjustment of the float 1 of the ball cock for a cistern &c., the float comprises a hollow body of a cup-shaped or other elongated part cylindrical form, preferably closed at the top as well as at the bottom, and is embraced by an adjustable band 12 connected to the lever 2. As shown, the band at one side is provided with a boss 14 which may be screwed on to the lever 2, and at the opposite is divided and a thumb screw 13 engaged with lugs 12a on the two parts. In addition, a longitudinal adjustment of the float with respect to the lever may be obtained by forming the latter of two relatively slidable parts a, b.
Patent GB-794969-A (GB)
Title: Improvements relating to toe cap assemblies for safety boots and shoes
Inventor: SHULTZ EDWARD L
IPC: A43B23/08
Filed: 1957-01-18
Abstract: 794,969. Toe cap stiffeners. ENDICOTT JOHNSON CORPORATION. Jan. 18, 1957. No. 1952/57. Class 17(2) The metallic safety toe cap and liner described in Specification 770,946 is modified in that the liner 12 is made initially of greater width and less height than the corresponding metal toe cap 10 so that when it is inserted therein it is compressed laterally thus forcing the centre up so that the entire liner is held in intimate contact with the toe cap. The transverse rear strip of the liner in addition to being tapered in thickness rearwards is flared outwards so that it contacts the upper intimately when incorporated in the shoe.
Patent GB-837926-A (GB)
Title: Cross linked copolymeric polyesters
IPC: C09D167/06
Filed: 1958-01-21
Abstract: In Example 3 of the Specification a woven glass fibre cloth is dyed by first making a dyestuff dispersion by mixing together (a) Heliogen Green GTA paste, (b) a copolymerizable mixture of an aqueous solution of a methyl vinyl ether-maleic anhydride copolymer, 2-butene-1,4-diol and N-vinyl-2-pyrrolidone and (c) alpha, alpha1-azodiisobutyronitrile (a polymerization catalyst), then padding the mixture on the cloth, and finally heating the padded cloth at 176 DEG  C. for 10 minutes to effect copolymerization of mixture (b) into a cross-linked polymer. Cotton or nylon may also be dyed with the dispersion.ALSO:New esterified copolymers suitable for surface coating have the formula <FORM:0837926/IV (a)/1> where n represents a chain of 5 to 2000 monomer units of a methyl vinyl ether/maleic anhydride copolymer and m is an integer from 1 to n/2 which corresponds to a molecular weight of about 3500 5o about 1400 X 10-.  The products are made by esterifying in aqueous medium 1 mol. of a methyl vinyl ether/maleic anhydride copolymer of molecular weight about 780 to about 312,000 with 1 mol. of 2-butene-1.4-diol in the presence of 1/2 mol. of N-vinyl-2-pyrrolidone at 130-230 DEG  C.  Catalysts for the reaction are benzoyl peroxide, lauroyl peroxide, tert-butyl hydroperoxide and alpha, alpha1-azo-diisobutyronitrile.  The heating may be effected after the aqueous solution of the reactants has been applied to a substrate e.g. glass, wood, metals, paper or cloth. Pigments (e.g. titanium dioxide) or dyes (e.g. Heliogen Green GTA Paste) may be added to the aqueous solution.  The film on the substrate has good resistance to heat, water and U.V. light and acts as a rust-preventative.
Patent GB-1530724-A (GB)
Title: Process for synthesizing or forming single crystalline beryl out of molten salt
IPC: C30B9/12
Filed: 1976-01-20
Abstract: 1530724 Beryl single crystals KYOTO CERAMIC KK 20 Jan 1976 [18 Feb 1975] 02073/76 Heading C1A Single crystal beryl is obtained by melting natural beryl, or its component oxides in proportions to give Be 3 Al 2 Si 6 O 18 , and a molybdate, tungstate, boron oxide or vanadium pentoxide flux, cooling the melt to below the temperature sphere of beryl formation, reheating and melting at the upper limit of said temperature sphere, or to a temperature 10-100 C. above the upper limit, adding beryl crystals, and cooling. Various procedures are described. Colorants such as metal oxides, e.g. NiO, Fe 2 O 3  or CoO, or Cr 2 O 3  to provide emerald, may be present.