baber/WOPTO huggingface dataset:
Patent GB-255159-A (GB)
Title: Improvements in or relating to the cracking and hydrogenation of hydrocarbon oils
IPC: C10G45/00
Filed: 1925-04-17
Abstract: 255,159. Wallace, G. W. April 17, 1925. Hydrocarbons, cracking; hydrogenation, destructive.-Hydrocarbon oils are cracked by vaporizing them in a chamber and passing the vapours in countercurrent through a heated inert material such as carbon briquettes or pieces of carbon, firebrick, alumina, &c. which is impelled mechanically through the chamber. The material may be coated or treated with a catalyst such as nickel and, if hydrogenation is desired, hydrogen or steam may be passed with the vapours. The chamber 1 which may be horizontal or inclined is supplied with the inert material from a hopper 6 by a piston 4 or by a screw conveyer, which discharges the material into a second chamber 1<b>. Oil is supplied through a nozzle 11 or a pipe 9 and vapours are withdrawn through a pipe 8. The chamber 1 is heated externally or by passage through it of products of combustion from a surface-combustion burner of the kind described in Specification 233,395 attached to the opening 12 or by partial combustion of the oil supplied to the nozzle 11 or by combustion of residual products &c. in the materials in the chamber 1<b> by air, steam, or gas supplied by a pipe 15. The inert material may be broken up by rollers 14 and quenched by water from a pipe 21 prior to being discharged and returned to the hopper 6. Gases formed in the chamber 1<b> by action of air and steam on the residual materials may either pass through the chamber 1 or may be withdrawn through an outlet 19 and used heating purposes.
Patent GB-913877-A (GB)
Title: Purification of crystalline substances
IPC: C07B61/00
Filed: 1960-03-22
Abstract: A static bed of a substance in finely divided form, at least 90% of the particles having a particle size of not more than 250 microns, is purified by the passage therethrough of a solvent at a rate of flow of the liquid forefront of not greater than 1 cm./min., followed by rinsing with the same liquid.  The solvent should have good solvent properties both for the impurity to be removed and the substance to be purified.  The particle size is preferably not more than 100 microns.  The rate of flow of the liquid forefront is preferably 0,01-0,5 cm./min.  The static bed may be in a glass tube.  The solvent may be evaporated immediately after passing through the bed to form a layer of impurity-containing substance which is then removed from the purified bed.  Various examples are given.ALSO:A static bed of a substance in finely divided form, at least 90% of the particles having a particle size of not more than 250 microns, is purified by the passage therethrough of a solvent at a rate of flow of the liquid forefront of not greater than 1 cm./min., followed by rinsing with the same liquid.  The solvent should have good solvent properties both for the impurity to be removed and the substance to be purified.  The particle size is preferably not more than 100 microns.  The rate of flow of the liquid forefront is preferably 0.01-0.5 cm./min.  The static bed may be in a glass tube.  The solvent may be evaporated immediately after passing through the bed to form a layer of impurity-containing substance which is then removed from the purified bed.  The following substances may be purified: diphenyl, naphthalene, tetraphenylethane, triphenyl carbinol, -naphthol, anthraquinone, benzoic acid, phenyl acetic acid, stearic acid, adipic acid, phthalic anhydride, dimethyl terephthalate, and antipyrine.
Patent GB-843478-A (GB)
Title: Improvements in or relating to electrical wave-generators
IPC: H04Q11/04
Filed: 1957-03-28
Abstract: 843,478. Step-wave generator circuits. STANDARD TELEPHONES & CABLES Ltd. March 28, 1957, No. 10137/57. Class 40(6). A generator comprises a first capacitor charged according to the amplitude of an input signal and switch means which are operated periodically to interchange the charge between the first and a second capacitor so that an output signal is produced across the second capacitor which changes abruptly when the switching means is operated and remains substantially constant between switching operations. Fig. 7 shows a stepped wave generator in which an oscillator 15 supplies sinusoidal voltage to a pentode 16 the output from which is applied via a low-pass filter 9, 10, 11, 12 to periodically charge capacitor 4. A switch 6 in the form of a rectifier bridge is controlled by switching pulses supplied from leads 20 so that capacitor 4 and 7 periodically interchange charges via switch 6. The switch is closed for a time equal to half the resonance period of the tuned circuit 4, 5, 7. The step voltage generated across capacitor 7 is amplified by pentode 22 to produce an output signal 14. As shown in Fig. 4, if the input waveform at the anode of pentode 16 has one-half cycle as shown at 13 and if the switch 6 is closed repetitively for a time t2, Fig. 4, at intervals tl the charge on capacitor 4 at the end of period tl is determined by the change of input signal amplitude which occurs during period tl. At the end of period tl and during time t2 switch 6 is closed and capacitors 4, 7 interchange their charges. During period tl the charge on capacitor 7 remains constant and that on capacitor 4 again increases, during the following time t2 the capacitors again interchange charges the process being repeated. When wave 13 begins to fall the charge on capacitor 4 progressive decreases. The output signal wave 14, Fig. 4, is thus generated the smooth envelope curve following the input signal wave 13 the relationship between the ordinates of the two being given by the formula of Fig. 6, not shown. During each time t2 when capacitors 4, 7 interchange charges, a current represented by curve 24 flows between them. Specifications 824,221 and 824,222 are referred to.
Patent GB-527122-A (GB)
Title: Improvements in compression quads for justifying lines of type
IPC: B41B1/04
Filed: 1939-03-31
Abstract: 527,122. Printing-surfaces. WILLIAMS, W. P. (Dayton Type. Inc.). March 31. 1939, No. 10170. [Class 100 (ii)] A compressible spacer or quad for justifying type consist of a metal block having its side faces hollowed out, as shown in plan. in Fig. 3, and having a recess S, Figs. 1 and 2, in the top. so as to provide spaces into which the metal can flow when the quad is compressed. The web 3 connecting the flat end surfaces 2, which bear against the type, is further reduced in thickness by recesses 7. The ends of the quad may have notches 2a for guidance in type setting.
Patent GB-879950-A (GB)
Title: Polyether-polyacid products and method therefor
IPC: C08G81/00
Filed: 1958-03-31
Abstract: Water-insoluble polyether-polyacid products which contain no neutralized carboxylic acid groups are made by mixing from 7%-97% by weight of an organic acid polymer containing an average of at least 10 carboxylic acid groups, and no neutralized groups, in the polymer molecule and having an average of at least 1 carboxyl group for each 6 carbon atoms of the polymer excluding the carboxyl carbon atom, and from 93%-3% by weight of a polyether containing an average of at least 7 non-cyclic aliphatic ether linkages in the molecule and having, on the average, a ratio of etheric oxygen atoms to carbon atoms of at least 1-6, and if necessary baking the product so obtained at a temperature in the range of 150 DEG -225 DEG C. to render it water-insoluble.  Polymeric acids specified are homopolymers of acrylic and methacrylic acids and copolymers of such acids with maleic acid, styrene, vinyl toluene, isobutylene, vinyl chloride and vinyl benzoate. Polyethers specified are polyethylene and polypropylene oxides and ethers thereof with alcohols, glycols, glycerol, sorbitol and phenols, copolymers of ethylene and propylene oxides with each other and with other olefine oxides such as epoxybutanes, isobutylene oxide and styrene oxide, polytrimethylene and polytetramethylene oxides, polyethers made by reacting olefine oxides with Novolaks, polyvinyl alcohol, starch, sucrose and methyl glucoside, polyethylene glycol chloride, polyethylene triol and polyvinyl methyl ether.  The products may be made by direct mixing of the polyether and polyacid, but the mixing is preferably carried out in aqueous solution from which precipitation of the product may be inhibited by the addition of ammonia, amino compounds, e.g. N, N, N1, N1-tetrakis (2-hydroxypropyl) ethylene diamine, alkalies, hydrazine or solvents such as acetone, a mono-lower alkyl ether of an alkylene glycol, dioxane, diacetone alcohol, ethanol, dimethyl sulphoxide, acetic acid and acrylic acid.  The precipitation of the products from such solutions may be effected by appropriate treatment, e.g. heating, acidification or, in the case of solutions containing acetone, treatment with ferric chloride.  The products are used in the production of films and coating which possess resistance to solvents and water.
Patent GB-1162783-A (GB)
Title: Water Vapour Sensor
IPC: G01N27/22
Filed: 1968-03-01
Abstract: 1,162,783. Humidity transducers. PANAMETRICS Inc. March 1, 1968 [March 17, 1967; Nov.1, 1967], No. 10187/68. Heading G1N. A transducer for measuring the absolute humidity of an atmosphere comprises a variable capacitance and resistance formed by a layer of aluminium oxide or an aluminium base, and covered by a thin conductive layer. Constructional and material details of different embodiments are given.
Patent GB-123915-A (GB)
Title: Fastening Device for Ladies' Hats and like purposes.
Inventor: CORBIN JOSEPH HENRY
IPC: A42B7/00
Filed: 1918-06-21
Abstract: 123,915. Corbin, J. H., Pearce, E. H., and Gamblin, J. June 21, 1918. Hats, securing to heads.-A device for this purpose of the kind in which a rotatable curved pin is used, consists of a substantially semicircular frame or plate a secured to the inside of the hat and provided with clips or guides d, e for the curved pin band with tubular protectors f, g for the point thereof. The inner portion of the pin is passed through a hole c, and is then bent at a right-angle. Its outer end is shaped, say to a square section, so that it can be removably attached to any head h, a light spring k retaining the two in position. On rotating the head, the end of the curved pin passes through the wearer's hair and is received by the protector f.
Patent GB-196179-A (GB)
Title: Blast supply for smiths' forge
IPC: B21J19/02
Filed: 1922-04-11
Abstract: 196,179. Harris, L. April 11, 1922. Tuyeres.-A tuyere for smiths' forges comprises two opposed nozzles a<1>, a<2> connected by a short length of tube g which is buried with the nozzles in the fuel bed. The blower is connected to one of the nozzles at b<1>.
Patent GB-807683-A (GB)
Title: Solid pharmaceutical compositions
Inventor: DWIGHT JOSEPH STANLEY
IPC: A61K31/155
Filed: 1956-04-04
Abstract: Solid dry compositions useful for medicinal and veterinary purposes for external application to man, animals or inanimate objects for disinfecting purposes and which readily give bactericidal solutions comprise one or more salts of bis-biguanides of the formula <FORM:0807683/VI/1> where A is a phenyl radical optionally substituted by alkyl, alkoxy or nitro-groups or by halogen atoms, and where the A's are the same or different, wherein X and X1 stand for a direct linkage or an alkylene radical of not more than 3 carbon atoms and which may be the same or different, wherein R and R1 stand for hydrogen, alkyl group or aralkyl group and which may be the same or different, wherein n is an integer from 2 to 12 inclusive and wherein the polymethylene drain may optionally be interrupted by oxygen atoms and/or by aromatic nuclei, and at least one inert water soluble solid diluent and which is readily soluble in water and which does not react with the bis-biguanide salts under normal storage conditions, e.g. lactose, urea, sucrose, dextrose, hexamethylene tetramine and sodium acetate.  The preferred compositions contain between 30 and 85 per cent by weight of the diluent and they may be made up into granules, tablets or powders. Optional ingredients other than those specified above are surface-active agents, e.g. di-sodium di-naphthyl methane disulphate, dodecyl-, tetradecyl-, and hexadecyl-trimethylammonium bromides or chlorides, and condensation products of ethyneel oxide with alkyl phenols, e.g. octylcresol, inert water-dispersible diluents, e.g. bentonite or starch, and ingredients used for granulating the compositions, e.g. sugars, alkylated celluloses or derivatives, acacia, tragacanth, starch or dextrin. Specifications 705,838, [Group V], 710,105 and 785,937, [Group V], are referred to.
Patent GB-629890-A (GB)
Title: Improvements in or relating to pressure control devices for pneumatic tyres
IPC: B60C23/00
Filed: 1946-04-03
Abstract: 629,890. Pressure gauges. NAVARRO, M., LLOVET, E. J., and LLOVET, A. E. April 3, 1946, No. 10291. [Class 106 (ii)] [Also in Group XXIX] A pressure-relieving device, e.g. for motor vehicle tyres, comprises a support tube 5 secured to the tyre a, Fig. 1, and having a vented cover 10 and an adjustable bush member 6 formed with a flange 7 which coacts with a bush 4 adjustably secured to a discharge tube 1 and arranged to permit of relative movement between the discharge and support tubes. One end of a spring 18, which opposes the pressure in the tyre, abuts the flange 7 whilst its other end abuts the base of a guiding skirt 20 formed on the discharge tube which carries a bellows 23 sealed to the tyre. The usual inflation valve 3 disposed at the upper end of the tube 1 is arranged to open to expel excess air through the vented cover on the pressure in the tyre exceeding a predetermined value, set and indicated by the co-operation of a dial on the top of the cover with a pointer 15 secured to a finely-pitched screw 12 adjustably secured to the cover by a lock-nut 17. The tyre a is inflated in the usual manner after removal of the cover 10 and the inflation pressure is indicated on a scale 4a, Fig. 5, on the bush 4 which is visible through grooves 9 in the bush member 6. On the desired pressure being reached, the dial band pointer 15 are set thereat and the cover 10 replaced until the screw 12 is just clear of the valve 3. Should the pressure in the tyre increase, e.g. due to overheating, the bellows 23 will contract and move the discharge tube 1 upwards and the valve 3 into contact with the screw 12 to open the valve. In a modification, the bellows 23 is replaced by a diaphragm, whilst in another arrangement the spring 18 is replaced by a flexible bellows.
Patent GB-1028170-A (GB)
Title: Improvements relating to automatic telephone exchange switching systems
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04Q3/00
Filed: 1964-03-11
Abstract: 1,028,170. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 4, 1965 [March 11, 1964], No. 10296/64. Heading H4K. A step-by-step exchange includes also cross-point switching equipment serving some of the subscribers' lines and working in conjunction with the step-by-step equipment. The cross-point equipment may be in addition to the step-by-step equipment for increasing the capacity of the exchange, or in substitution therefor as a stage in the conversion of the exchange to cross-point working. As shown in Fig. 1, conventional step-by-step equipment serves 9000 lines such as lx, while the remaining 1000 lines such as ly are served by the cross-point equipment. The latter comprises A, B and C switching arrays arranged in sections in the manner described in Specification 999,945. In the case of an outgoing call from a line ly, the identity of the line as determined by a scanner SC is transmitted to a register REG, which in conjunction with route choice equipment RC controls the switching arrays to connect the line to a first code selector 1/C of the step-by-step equipment. The call then proceeds under the control of a director DIR. For incoming calls, the first numerical step-by-step selectors 1/N, 1/NJ give access over D arrays to the A, B and C arrays which operate under the control of a register REG as second numerical and final selectors. Such connections include transmission bridges TX which will be dispensed with when the exchange is fully converted to cross-point working. The cross-points may comprise reed relays, or cross-bar switches may be used.
Patent GB-182233-A (GB)
Title: Improvements in railway rail keys
IPC: E01B9/24
Filed: 1921-04-08
Abstract: 182,233. Mitchell, J. April 8, 1921. Chair keys, for flat-bottomed rails secured to chair plates or steel sleepers, are made of malleable cast iron. One end D of the key may be split in a vertical or horizotal plane. The key may be lightened by holes E or flutings F.
Patent GB-105686-A (GB)
IPC: B23B3/32
Abstract: 105,686. Wade, H. (Soc. Anon. des Etablissements Lejeune et H. Michel-LÞvy). July 21, 1916. Lathes of the central-drive type have two spindles c, Fig. 2, independently driven through separate gear trains from a single contact speed pulley b<1>. Several slide rests are mounted upon the saddle and two tools may be carried by one rest. As shown in Fig. 2, three rests f<1> carrying four tools f are employed. The slides are controlled by staggered formers g<1> arranged so that the cuts may overlap. Sleeves h, Fig. 3, adjustably secured on the saddle, receive pistons i carrying the forming rolls g and nuts j engaging screws k carried by the tool rests. Springs l in casings k<1> maintain contact between the rolls and formers.
Patent GB-720892-A (GB)
Title: Improvements in or relating to the construction of a fused capacitor unit
Inventor: BARNARD ROY MAYNE
IPC: H01G2/14
Filed: 1953-04-17
Abstract: 720,892. Fused capacitor unit. STANDARD TELEPHONES & CABLES, Ltd. April 17, 1953, No. 10571/53. Class 37. A suppressor capacitor unit comprises a capacitor in series with a fuse, which is shunted by an auxiliary capacitor to keep the impedance low at H.F. Values are so chosen that the frequencies of self-resonance of the main capacitor, of resonance of the main capacitor and fuse, and of anti-resonance of the parallel circuit which is higher than that of the series circuit, lie within the suppression range. The dynamic impedance of the parallel circuit is of the same order as the fuse resistance and the required transfer impedance. In one arrangement, Fig. 2 (not shown), both capacitors are wound in a single unit and have a common plate and in a second, Fig. 3 (not shown), the auxiliary capacitance is that between the outer electrode of a wound capacitor and a metal case. In a further embodiment the auxiliary capacitor is formed between the outer electrode of the main capacitor and an earthed band 18 around it, two parallel fuses 15, 16 being connected between the band and the outer electrode. Fusing from any cause leaves the suppressor operating but over a restricted frequency range.
Patent GB-105898-A (GB)
IPC: G03B19/04
Abstract: 105.898. Cramer, A. S. April 27, 1916, [Convention date]. Magazine hand cameras for roll-films. - A camera comprises a frame made from a stamped metal blank of the form shown in Fig. 6 having a front part 6 containing a recess 10 for the lens and tabs 8 by which a shutter-carrying plate 15, Figs. 2 and 5, is attached. The side members 4. 5 of the frame have extensions 7 stamped into the form shown in Fig. 4 and provided with slots 21 for the reception of the film-spools. The frame is completed by means of stamped plates 13, 14- at the top and bottom and the whole enclosed ina box 1. The shutter 17 and its trigger are pivoted on tangs 18 stamped up from the plate 15- Stops 19 for limiting the movement of the shutter are similarly formed.
Patent GB-434032-A (GB)
Title: Improvements in or relating to electric fuse isolators
IPC: H01H9/10
Filed: 1934-04-09
Abstract: 434,032. Fusible cut-outs. SWITCHGEAR & EQUIPMENT, Ltd., Station Road, Banbury, and OXLEY, A. G. H., Greengates, Adderbury West, near Banbury, Oxfordshire. April 9, 1934, No. 10665. [Class 38 (i)] A fuse for overhead lines is placed in position by passing it up through the lower terminal, its upper end protruding through the upper terminal, and the fuse being locked in position by bayonet-type fastenings. A tubular guide may depend from the lower terminal so that the fuse may be lowered and locked therein in an isolating position. In the form shown in Fig. 1 upper and lower metal brackets A, B carrying the cables are provided with annular terminals to receive the cartridge fuse D passed up through the lower terminal E by the pole J and held in operative position by a pin D<4> on the lower cap engaging a bayonet slot G<2> in the terminal E. Inserts E<1> depressed by springs retain the pin in locking position. The upper end of the cartridge is engaged by shaped spring-pressed rollers H. To hold the cartridge temporarily on the pole the latter contains a spring-supported plunger L, Fig. 2, to force the cartridge upwardly with its pin D<4> engaging a bayonet slot K<1> in the end cap of the pole. To guide the cartridge in its upward movement a tubular guide F depends from the terminal E and is flared at F and slotted at G. By partly lowering the cartridge its pin D' may be engaged with the lateral slot G<3> so as to lock the fuse in the isolating position.
Patent GB-306318-A (GB)
Title: Improvements in or relating to power plant for use on vessels
IPC: F16C3/04
Filed: 1928-04-11
Abstract: 306,318. Elderton, A. J. April 11, 1928. Shaft couplings.-In plant wherein the main engine is divided into two parts so that they may function collectively for propulsion or independently for propulsion and auxiliary work, the coupling for the parts is arranged so that they have a definite relationship. The flange on one shaft is recessed into the face of the flange on the other shaft and the two parts are connected by a key member non-symmetrical with respect to the crank diameter. Two engines A, B are coupled at J so that the crank webs are always at right angles. The propeller E is coupled to the crank shaft through a reverse gear H and a coupling K is used for connecting the engines to the auxiliary machinery. Both parts of the engines A and B have a fly wheel F.G. The coupling J is formed by providing the flange on one engine L with a recessed portion eccentric to its axis and the other shaft has a projecting flange member M of similar eccentricity but smaller dimensions. Into the angular space between the two may be slidden a ring N which fits the annulus between the two flanges, also a key 0 may be fitted to the ring N and adapted to move into a slot in the flanges L and M. In an alternative construction where the flange P is recessed into flange Q two keys are provided R and S which fit into slots cut across the faces of the flanges. These keys are of unequal width. Springs or other means may be employed to hold the coupling ring carrying these keys in position. The coupling rings are supplied to facilitate assembly and one flange is tapped for taking set screws when the coupling ring has to be forced out.
Patent GB-223162-A (GB)
Title: Sewing machine bobbin case latch
IPC: D05B57/14
Filed: 1924-05-02
Abstract: 223,162. Fairweather, W., (Singer Manufacturing Co.). May 2, 1924. Sewing-machines; lock-stitching. - A bobbincase is formed with a central tubular arbor open at both ends and receiving a removable shank . which carries the bobbin-securing latch. The latch 11 is pivoted in an enlarged head 13 of the tubular shank 7 and is held in open or closed position by a spring-pressed stud 15. The end of the shank 7 remote from the latch is split and receives a screw having a tapered head 10 for the purpose of clamping the shank within the arbor 3. Specification 233,812 is referred to.