baber/WOPTO huggingface dataset:
Patent GB-268724-A (GB)
Title: Improvements in and relating to quick action rotary electric switches
IPC: H01H19/24
Filed: 1926-11-04
Abstract: 268,724. Therma Fabrik f³r Elektrische Heizung Akt.-Ges. vorm S. Blumer. March 30, 1926, [Convention date]. Switches, quick-action, of the rotary type have a driving device comprising at least one flat spring so interposed between the driving shaft and the contact-carrying member that by rotation about its longitudinal axis it both permits an accelerated movement of the contact-carrying member and brakes a back blow of the latter on the driving shaft. The driving shaft 1 is rotatable within a hollow four-sided shaft 2 and connected therewith by a pin-and-slot connection 14, 15 and also by one or more flat springs 10 which are inserted at one end in a slit in the shaft 1 and secured at their other end by bolts 12 and blocks 13 to the shaft 2. The shaft 2 is mounted by means of sleeves 3, 4 and carries contacts 8, 9 over an insulating tube 7, the sleeve 4 carrying the star 16 of a quick-action device comprising co-operating rollers 18 and springs 19. Rotation of shaft 1 strains the springs 10 until the pin 15 engages the shaft 2, whereupon the rollers are separated by the star until they pass the deadcentre. The springs 19 rapidly complete the movement, aided by the springs 10 which also brake the movement and reduce shocks. The snap-action is such as to enable operation in either direction and may be put at the front of the switch. The sleeve 3 can be secured to the shaft by driving the edges 33 of the recess on the shaft over a projection on the sleeve, the shaft also being expanded at 23 to secure the sleeve 4 and star.
Patent GB-681439-A (GB)
Title: Improvements relating to shaving stick holders
IPC: A45D40/00
Filed: 1949-10-29
Abstract: 681,439. Shaving-stick holders. UNIVERSAL METAL PRODUCTS, Ltd., and BIDDULPH, M. Oct. 11, 1950 [Oct. 29, 1949], No. 27780/49. Class 18 A holder for a stick of shaving soap comprises a tapered inwardly directed rim which engages the protruding stick to prevent it being pushed back into the holder. In one embodiment, the rim g is carried on a ring f fitting over the holder body c. The stick is advanced by pushing upwardly a slideable plug b. In another embodiment the rim is integral with the body and the stick is placed in the holder through the base of the body, the stick being advanced by a plug as before. The Provisional Specification states that the holder may have a screwed cap and that the ring carrying the rim may have a screw connection with the body, and that the rim may be downwardly directed.
Patent GB-321514-A (GB)
Title: Improvements in or relating to two-cycle internal combustion engines
IPC: F02B25/00
Filed: 1928-09-28
Abstract: 321,514. Curtis. C. G., and Newton, E. R. Sept. 28, 1928. Cylinders, ports of and pipes for.-In a two-strokecycle engine cylinder having opposed banks 14, 16 of piston-controlled inlet and exhaust ports, the central inlet ports 34 are directed towards the cylinder head, e.g. at 30‹ to the axis, and the end ports 30 are transverse but directed towards the inlet side of the cylinder; the intermediate ports 32 may be between these two elevations, e.g. at 45‹ to the axis. One or more of the oblique ports may be longer than the exhaust ports, to supercharge the cylinder; these ports are connected by spring-closed or engine-driven valves to a source of high-pressure air. If the invention is applied to a double-acting engine having pistons with concave faces, the same ports may serve for both ends, the oblique ports directing the air towards the piston in the lower half; the ports may be forced as shown in Fig. 15 to direct the air to both cylinder heads. Specification 294,281 is referred to.
Patent GB-1036412-A (GB)
Title: Catalytic conversion with activated catalyst
IPC: B01J29/06
Filed: 1963-07-15
Abstract: Reactions including cracking of paraffinic, olefinic, aromatic and naphthenic hydrocarbons, disproportionation of aromatics, dehydration of alcohols to olefins, isomerization of olefins and terpenes and alkylation and dealkylation of aromatic hydrocarbons are effected in the presence of a crystalline aluminasilicate which has been activated by treatment with ammonium sulphide. The disproportionation of toluene into benzene and xylene is referred to and examples describe the cracking of n-hexane.ALSO:A crystalline aluminosilicate catalyst is activated by treatment with ammonium sulphide. The aluminosilicate may contain alkali or alkaline earth cations and may be a naturally occurring or synthetic zeolite, examples being chabazite, gunelinite, mesolite, ptilishite, mordenite, natrolite, nepheline, sodalite, scapolite, laynrite, leucrite and canchinite and A, X, Y, T and ZK types.  Cations associated with such aluminosilicates are those of Li, K, Na, Ca, Sr, Mg, Co, Zu, Ag, Ni, Cu, Cr, Fe, Zr, Th, Be, Mu, Pd, Sn, Ru, Al, Au, Pt, Cd, Hg, Ha and Ce. Suitable supports for the catalysts are carbon and inorganic oxide gels, e.g. SiO2 or Al2O3 and various combinations, e.g. SiO2-Al2O3, SiO2-MgO, SiO2-ZrO2, SiO2-ThO2, SiO2-BeO, SiO2-TiO2, SiO2-Al2O3-ThO2, SiO2-Al2O3-ZrO2, SiO2-Al2O3-MgO, and SiO2-MgO-ZrO2. The aluminosilicate may be immersed in ammonium sulphide solution in water, alcohols or glycols, agitating as desired. Comparative examples are given.ALSO:A crystalline aluminosilicate catalyst is activated by treatment with ammonium sulphide.  The aluminosilicate may contain alkali or alkaline earth cations and may be a naturally occurring or synthetic zeolite examples being chabazite, gmelinite, mesolite ptiliolite, mordenite, natrolite, nepheline, sodalite, scaplite, lazurite, leucrite and cancrinite and A, X, Y, T and ZK types.  Cations associated with such aluminosilicates are those of Li, K, Na, Ca, Sr, Mg, Co, Zu, Ag, Ni, Cu, Cr, Fe, Zr, Th, Be, Mn, Pd, Sn, Ru, Al, Au, Pt, Cd, Hg, La and Ce.  Suitable supports for the catalysts are carbon and inorganic oxide gels e.g. SiO2 or Al2O3 and various combinations e.g. SiO2-Al2O3, SiO2-MgO, SiO2-ZrO2, SiO2-ThO2, SiO2-BeO, SiO2-TiO2, SiO2-Al2O3-ThO2, SiO2-Al2O3-ZrO2, SiO2-Al2O3-MgO, and SiO2-MgO-ZrO2. The aluminosilicate may be immersed in ammonium sulphide solution in water, alcohols or glycols, agitating as desired.  Comparative examples are given.
Patent GB-302997-A (GB)
Title: Improvements in or relating to the valve gear and fuel pumps of internal combustion engines
IPC: F01L1/047
Filed: 1928-10-01
Abstract: 302,997. Krupp Germaniawerft Akt.- Ges., F. Dec. 24, 1927, [Convention date]. Cylinders receiving liquid fuel.-In order to avoid the disadvantageous effects of heat expansion, the cam shaft A actuating the valve gear F and fuel pumps G is carried in brackets B mounted on a boxshaped projection C of the engine casing, arranged near the upper end of the cylinders. The shaft E, on which the valve and fuel-pump levers K are mounted, is also supported by the brackets B.
Patent GB-646769-A (GB)
Title: Improvements in the colouration of cellulose acetate
Filed: 1948-10-29
Abstract: Textile material composed wholly or partially of secondary cellulose acetate are dyed with a vat dyestuff in the absence of a swelling agent and in the presence of a sodium hydrosulphite solution which has been stabilized with an alkaline calcium compound in such manner that the pH value of the solution is between 10.5 and 11.4 before being added to the dyebath. Suitable calcium compounds are calcium cyanamide and calcium hydroxide.  In examples: (1) a cellulose acetate-cotton fabric is dyed in a bath containing Caledon Brilliant Orange 4RS and sodium hydrosulphite stabilized with calcium cyanamide, washed and oxidized in air; (2) a cellulose acetate-cotton fabric is dyed in a bath containing Caledon Jade Green XN and sodium hydrosulphite stabilized with calcium hydroxide, and (3) a cellulose acetate-cotton fabric is mechanically impregnated with a solution of Caledon Jade Green XN and sodium hydrosulphite stabilized with calcium cyanamide, and then steamed in air.  Specification 622,676 is referred to.
Patent GB-538224-A (GB)
Title: Enamel ware
IPC: C23D5/00
Filed: 1939-10-18
Abstract: 538,224. Vitreous enamels. TITANIUM ALLOY MANUFACTURING CO.. Oct. 18. 1939, No. 28163. Convention date, Nov. 10, 1938. Drawings to Specification. [Class 56] Relates to a process for providing a sheet iron article with a white enamel coating that is less in weight than 40 grammes per square foot. According to the invention, 100 parts by weight of a frit having a basic reflectance above 60 is mixed with water, clay, and not less than 10 parts of an opacifier, and the mixture is milled to a fineness where more than 95 per cent. of the particles are less than 44 microns in size. The slip is applied to ground coated ware in a film not exceeding 40 grammes per square foot when fired, and the coating then burnt as usual. The opacifier may be a dioxide of zirconium, tin, titanium, hafrium thorium, or cerium, or it may be a complex of the kind described in Specification 427,850. Compositions of batches for a number of frits are given in the description. Specification 538,223 also is referred to.
Patent GB-1320648-A (GB)
Title: Process for the preparation of aryl-1,1,2,2,-tetrafluoroethyl ethers
IPC: C07C47/575
Filed: 1971-06-16
Abstract: 1320648 Aryl-1,1,2,2-tetrafluoroethyl ethers FARBWERKE HOECHST AG 16 June 1971 [16 June 1970] 28202/71 Heading C2C Aryl - 1,1,2,2 - tetrafluoroethyl ethers are prepared by reacting a solution of 5-50% (weight) of a phenolic compound in an inert polar watermiscible solvent with tetrafluoroethylene in the presence of from 0À05 to 0À5 mole of an alkali metal hydroxide per "equivalent" of phenol at 50-150 C. and at atmospheric or slightly subatmospheric pressure. The phenolic compound may be phenol itself, a mono-, di- or trisubstituted phenol, a di- or polyhydric phenol which may be unsubstituted or substituted providing not more than 4 substituents (including the hydroxy groups are present). The substituents may be alkyl groups, alkoxy groups, formyl amino, monoalkylamino or dialkylamino groups, piperidino or morpholino groups, or alkanoyl amino groups. Naphthols and polynuclear phenols may also be used as starting materials. One "equivalent" of phenol is defined as a mole of phenol divided by the number of phenolic hydroxy groups present. Examples are given of the formation of 1,1,2,2-tetrafluoryl ethers from phenol, amino phenols, alkyl phenols, formyl phenols, dihydric phenols, acetylaminophenol and #-naphthol.
Patent GB-226337-A (GB)
Title: An improved detergent
IPC: C11D10/06
Filed: 1924-08-06
Abstract: Compositions for cleaning textile fabrics, linoleum, and painted surfaces are obtained by heating 14 lb. of soap flakes to boiling point, and adding in succession 1 lb. of pearl ash, 3/4 pint of mineral naphtha, and 1 3/4 pints of methylated spirit, with or without 1 lb. of salts of tartar.  The proportions may be varied.
Patent GB-830439-A (GB)
Title: Catalytic reforming process
IPC: C10G59/02
Filed: 1958-09-02
Abstract: <PICT:0830439/IV (b)/1> The reforming of naphtha containing naphthenes but devoid of more than innocuous amounts of sulphur, nitrogen, arsenic, water and halogen is effected in the presence of hydrogen and a platinum-type catalyst in two steps which comprise (a) maintaining the naphtha in a first step at above the autogenous quench point temperature (see below) with a minimum amount of catalyst necessary to produce a maximum temperature differential between the vapour inlet and the autogenous quench point and (b) in the second step contacting the product at at least 500 DEG  C. with sufficient catalyst to provide an on-stream of at least 3 months. The autogenous quench point is the point in the first reactor at which dehydrogenation of naphthenes, for practical purposes, ceases and is independent of the age of the catalyst, the vapour inlet temperature, the composition of the naphtha or the mol. ratio of hydrogen to naphtha; the autogenous quench point temperature is the temperature at that point and is dependent on the factors quoted.  The point is discovered by a temperature profile curve for the reactor as shown; the graph is of temperature against distance through the reactor (as measured in kgs. of catalyst per 160 kilolitres of naphtha per stream day), the different curves being for different inlet temperatures and different catalyst ages.  The point where the curve changes from being substantially horizontal is the autogenous quench point. Only that amount of catalyst necessary to attain the quench point is used in the first reactor; extra space may be filled with silica or alumina.  The second stage may be effected in several reactors, the catalyst being equally divided and in a total amount compared to that in the first stage of 3 to 10 : 1.
Patent GB-273144-A (GB)
Title: Improvements in spring mattresses
IPC: A47C23/053
Filed: 1926-11-10
Abstract: 273,144. Marshall, J. E. L. Nov. 10, 1926. Mattresses.-Rows of vertical upholstery springs in a mattress are connected by longitudinal and/or transverse wires E, G having cranked portions E<1>, G<1> which project through the upper turns of the springs, the cranks of adjacent rows being connected by links F. The outer springs are clipped to a marginal frame J of flat steel. The lower ends of the springs are supported upon cross-bars B of an angle-iron frame A and are fixed by cranked wires D threaded through the lower turns of the springs and under the bars. The frame may be strengthened by additional cross-bars L.
Patent GB-464286-A (GB)
Title: Improvements in or relating to modulated carrier wave receivers
IPC: H04N5/60
Filed: 1935-10-14
Abstract: 464,286. Wireless receiving-apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 14, 1935, No. 28333. Convention date, Oct. 31, 1934. [Class 40 (v)] In a superheterodyne receiver with a frequency response wide enough to accommodate a plurality of signals on adjacent carrier frequencies a plurality of beat frequency channels are branched out after the frequency changer to separately amplify different signals, one of the channels including a plurality of broadly tuned circuits and a plurality of rejector circuits loosely coupled thereto. Figs. 1, la show a sound and television receiver with a broadly tuned input 52 and a common oscillator 53 and frequency changer 50 feeding a sound intermediate frequency amplifier 15 and a corresponding television amplifier 16 with a wide] frequency characteristic obtained by loss introducing means, e.g. resistances 26. The coupling is obtained through tuned circuits 22, 30, 36 each of the latter serving to reject the signal of the one amplifier from the other amplifier channel thus enabling frequencies more nearly adjacent to be used for the two channels. Two-stage filters are provided in the supply leads to avoid interstage coupling while interference from the adjacent channel is prevented by auxiliary rejector circuits which may be conductively coupled 80, 85, 86, and 93 or capacity coupled 88 and 91 or magnetically coupled 89. The Specification gives curves showing the response curves obtainable with various combinations of rejector circuits and separations between the channels. Rejector circuits may be provided to obtain separation on either or both sides of the channel, and more than two channels may be used. Fig. 2 shows an alternative arrangement of the valve 17 in Fig. 1 in which trap circuits are provided in the circuits of auxiliary electrodes. The circuit 141 is included in the screen grid lead and a similar trap circuit may be provided in connection with the amplifier valve 142. The trap circuit 146 is electron coupled to the signal circuit by the diode 143, alternatively the suppressor grid of a valve may be used to obtain electron coupling of the trap circuit.
Patent GB-483479-A (GB)
Title: Improvements relating to trawling boards
IPC: A01K73/045
Filed: 1936-10-19
Abstract: 483,479. Trawling-gear. THICKETT, W. H., and SHORT, H. C. Oct. 19, 1936, No. 28355. [Class 48] A trawl-board, with a base curved equally at each end to merge into the sides, has a marginal channel reinforcement 5 receiving the base of the board and housed in the channel of a reversible sole piece 6. The sole piece 6 is secured by countersunk bolts 7 to the reinforcement 5 and also by longer bolts 8 which extend through the bottom plank of the board. The channel 5 has bosses or spacing washers to raise the nuts 10 clear of the channel.
Patent GB-1358772-A (GB)
Title: Defluorination of uranium compositions
IPC: C01G43/025
Filed: 1971-06-17
Abstract: 1358772 Defluorinating uranium compositions GENERAL ELECTRIC CO 17 June 1971 [10 Aug 1970] 28366/71 Heading C1A [Also in Division G6] Particulate uranium compositions comprising uranium bound chemically to oxygen and chemically- or physically-bound F are defluorinated by heating at a temp. of 400-800‹ C. in an atmosphere of CO 2  and H 2 , which in this temp. range dissociates into CO and H 2 O, and then cooling the composition in an atmosphere of H 2  and/or CO 2  or an inert gas, e.g. Ar. The U compound may be the fluoride, oxyfluoride, oxide, alkali metal or alkaline earth metal diuranate and mixtures thereof with CaF 2 , MgF 2 , NaF, PuO 2 , SiO 2 , TiO 2 , Al 2 O 3  and/or Gd 2 O 3 . The PuO 2  or Gd 2 O 3  may be present in an amount up to 30% or 10% by wt. respectively. The uranium oxide may be UO 2 , UO 3 , U 2 O 8 , U 2 O 3 , U 2 O 5  and/or UO 4 .
Patent GB-1499591-A (GB)
Title: Food coating process and apparatus
IPC: A23G3/26
Filed: 1975-05-16
Abstract: 1499591 Spray coating food pieces MEUA SEIKA KAISHA Ltd 16 May 1975 28423/77 Divided out of 1503682 Heading A2A Candy particles of 8 - 36 mesh and 1.5 - 4.5% moisture are fed from hopper 23 to air jetting apparatus 24 and are sprayed by compressed air through a melting zone 26 at 500 - 800C onto food pieces in a rotating apparatus 12. The jetting apparatus may comprise a nozzle.
Patent GB-394538-A (GB)
Title: Improvements in or relating to machines for boring metal, such as cylinder boring machines
IPC: B23Q9/00
Filed: 1932-10-12
Abstract: 394,538. Boring cylinders. MALIA, A., 48, Denewell Avenue, High Heaton, New- - castle-on-Tyne. Oct. 12, 1932, No. 28485. [Class 83 (iii).] A portable cylinder-boring machine is clamped in position on the work by means of a removable gauge which comprises an internal part for fitting into the cylinder and an external part, concentric with the internal part over which the base of the machine is fitted -to centre it prior to clamping. The internal part of the gauge comprises radially adjustable blocks 1 carried in the slotted end of a sleeve 2, a cover 3 maintaining the blocks in place, adjustment being by means of a taperended screwed plug 12 ; the sleeve 2 is adjustably held in the external part of the device by a set-screw 4, a flange 3 longer than the cylinder bore limits the extent to which the gauge fits into the cylinder and serves to centre the machine; after the latter has been clamped to the cylinder block the gauge is removed by a bridle-piece 11.
Patent GB-445614-A (GB)
Title: Improvements in magnetic dust cores
IPC: H01F1/147
Filed: 1934-10-05
Abstract: The electric resistivity of magnetic dust cores of iron alloys containing 0,5-16 per cent of silicon and 0,5-12 per cent of silicon is increased by the addition of one or more of the following: 2-25 per cent of manganese, less than 25 per cent of tin, 2-20 per cent of vanadium, less than 15 per cent of cobalt, 2-10 per cent of chromium, less than 8 per cent each of nickel, tungsten, antimony, and tantalum, less than 5 per cent each of molybdenum, arsenic, copper, phosphorus, sulphur, and silver, 2-5 per cent of titanium, less than 3 per cent each of zinc, magnesium, beryllium, boron, cadmium, bismuth, lead, and zirconium, the total amount of such additions being less than 40 per cent.  The alloy is powdered and either oxidized on the surface by heating to less than 800 DEG  C. or is mixed with insulating material with or without the addition of powdered iron, permalloy, or other magnetic material and the mixture pressed in moulds and heated; or the powder may be pasted to or otherwise incorporated with paper or fabric and made into cores.
Patent GB-243344-A (GB)
Title: Improvements in or relating to pressure-distributing means for bearings
IPC: B21B31/07
Filed: 1925-11-13
Abstract: 243,344. Aktiebolaget Svenska Kullagerfabriken. Nov. 18, 1924, [Convention date]. Supporting and mounting bearings.-The load is applied to a bearing casing 4 by a pressuredistributing member 7 which engages the casing by an edge 8 and is carried in rolling engagement with a support 5 so that for small rolling movements of the member 7 the edge 8 will move substantially in a straight parallel to the bearing axis. For a three high rolling mill in which each roller neck bearing comprises two spherical roller bearings 3 in a casing 4, the load is transmitted equally to the 'bearings 3 by the member 7 which has a cylindrical bearing surface 10 concentric with the edge 8 and capable of rolling engagement with the frame 5. The bearings 3 take only radial load, end thrust, being taken by additional bearings 6. As shown for the lefthand bearing of the centre roll a pressure-distributing member 7 may be disposed on both the top and bottom of the bearing casing.
Patent GB-487744-A (GB)
Title: Improvements in and relating to electrolytes and methods of making the same
IPC: H01G9/02
Filed: 1937-10-21
Abstract: 487,744. Electrolytic condensers. THORNTON, A. A. (Brennan, J. B.) Oct. 21, 1937, No. 28721. [Class 37] An electrolyte consists mainly of a partially reacted condensation product of an amide such as urea or thiourea and an aldehyde such as formaldehyde or acrylic aldehyde. A polyhydric alcohol, and an alkaline stabilizer such as an alkaline earth hydroxide may be added, together with a film-maintaining salt such as ammonium borate.
Patent GB-805239-A (GB)
Title: Improvements in or relating to radio receivers including tuning indicators
IPC: H03J3/14
Filed: 1956-09-21
Abstract: 805,239. Valve circuits for radio reception. STANDARD TELEPHONES & CABLES Ltd. Sept. 21, 1956 [Sept. 27, 1955], No. 28930/56. Class 40 (5). In a television receiver a tuning indicator is fed from a sharply-timed circuit 10 which is coupled to the output of the broadly-tuned video I.F. channel 6. The circuit 10 is tuned to a frequency on the slope at either one end or the other of the passband response of the channel 6, and is coupled to an I.F. amplifier 14. The amplifier 14 feeds rectifier 21 the smoothed output of which is applied to any suitable tuning indicating device.
Patent GB-519242-A (GB)
Title: Improvements in or relating to auxiliary air admission devices for internal combustion engines
IPC: F02M23/08
Filed: 1938-10-07
Abstract: 519,242. Fluid-pressure operated servomotor control systems. BOSCH. GES. R., (formerly BOSCH AKT.-GES., R.). Oct. 7, 1938, No. 29072. Convention date, Oct. 11, 1937. [Class 135] [Also in Group XXVII] To prevent stalling of an internal combustion engine upon sudden closing of the throttle valve, auxiliary air is admitted to the induction pipe through a passage 13 under the control of a valve 16 which is carried by a diaphragm 4. The diaphragm is raised when a valve 18 is depressed by the action of the engine suction on a diaphragm 5 the suction being transmitted through a port 21 and passage 22. The chamber 10 is in open communication with the inlet pipe through a passage 23 and a permanently open passage 17 opening above the lower diaphragm 4.