baber/WOPTO huggingface dataset:
Patent GB-356396-A (GB)
Title: Improvements in picks for coal cutting machines with hard metal cutting edges
IPC: E21C35/183
Filed: 1930-07-23
Abstract: 356,396. Coal-cutting machines. GEWERKSCHAFT WALLRAM, 96, Kruppstrasse, Essen, Germany. July 23, 1930, No. 22181. Convention date, May 6. [Class 68 (i).] In a coal-cutting machine, the picks are provided with hard metal insertions which form the cutting edges and are overhung by the metal of the pick body so as to be supported against tilting strains. In Figs. 1 and 3, the flattened end 1 of the pick is provided with a groove 2 of rectangular, circular or other cross section to receive a hard metal insertion 3 on which the cutting edge is formed. The pick is fixed in a cutter bar 6 by a conical member 7 and has an eccentric projection 8 engaging a corresponding recess 9 in the bar to prevent turning. The cutting edge is preferably level with, or below, the axis of the member 7, leaving a striking surface 11 for use in inserting the pick. In Fig. 5, the front end of the pick is formed as a truncated cone with flat sides and the hard insertion 3 fits a prismatic or cylindrical bore 14 parallel to the lower surface of the cone ; the eccentric projection 8 may be provided and the cutting edge may be level with or below the axis of the conical member 7. A pipe is engaged with the surface 16 to drive the pick into position in the bar. The pick may be modified as in Fig. 7 for use in a cutter chain.
Patent GB-1298354-A (GB)
Title: Smoking mixture
Inventor: MORMAN JAMES FORRESTER
IPC: A24B15/16
Filed: 1969-05-01
Abstract: 1298354 Tobacco substitutes IMPERIAL CHEMICAL INDUSTRIES Ltd 17 April 1970 [1 May 1969] 22270/69 Heading A2C [Also in Division C3] A smoking mixture comprises, as smokeproducing material, a solid condensate produced by acid or base catalysed condensation of a compound of the formula: R<SP>1</SP>COCH 2 CH 2 COR<SP>2</SP> (optionally produced in situ from a precursor thereof) wherein R<SP>1</SP> and R<SP>2</SP> which may be the same or different, each represents a hydrogen atom, or an alkyl, hydroxyalkyl or formyl group, the condensate being fabricated with the aid of a film-forming agent into a form from which a tobacco simulating material can be produced. In the examples condensates of succinaldehyde, acetonyl acetone, HCOCH 2 CH 2  COCOH, HCOCH 2 CH 2 COCH 2 OH and HCOC OCH 2 CH 2 COCH 2 OH are prepared and are mixed with sodium carboxymethyl cellulose, water, glycerol, potassium citrate, citric acid, ammonium sulphate, calcium carbonate and calcium citrate, and the resulting slurries are cast into films which can be cut into strips and shredded. Conventional additives such as flavourants and inert fillers may be included in the mixture.
Patent GB-483690-A (GB)
Title: Improvements in or relating to hot water boilers
IPC: F24H1/14
Filed: 1937-08-13
Abstract: 483,690. Water-tube hot-water boilers. KELSO, A. Aug. 13, 1937, No. 22275. [Class 64 (i)] A domestic hot-water boiler comprises two water chambers 1, each composed of thin metal plates with the edges rolled or clipped together, the chambers being connected by rows of water tubes 2 formed near the ends with shoulders 3 abutting against the chamber walls through which the ends of the tubes project and are forced over the inside of the chamber walls ; a water inlet 4 at the bottom and an outlet 5 at the top are connected to a tank or radiators. A casing 7 has a flue outlet 7a. A thermostat 8 comprises an expanding fluid-containing diaphragm 9 with a valve member 10 at the top co-operating with a seating 10a in the thermostat body 11 provided with a gas inlet 12 and outlet 13. A spring 14 with an adjusting screw 14a varies the actuation temperature of the thermostat, which has an. adjustable byepass 15 for a pilot light.
Patent GB-829415-A (GB)
Title: New glutarimides and process for their manufacture
IPC: C07D211/88
Filed: 1956-07-18
Abstract: The invention comprises a -(p-amino-phenyl)-a -alkyl-glutarimides of the formula <FORM:0829415/IV (b)/1> wherein R represents a methyl or ethyl residue, salts of these compounds, and derivatives thereof acylated at the amino group by a fatty acid containing from 1-5 carbon atoms.  These compounds are obtained from the corresponding nitro, nitroso, acylated amino, benzylamino or methyleneamino compound by reduction or hydrolysis and, if desired, from the free base its salts produced or the amino group may be acylated. Alternatively an a -(p-aminophenyl) - a  - alkyl - glutaric acid or the acylamino derivative thereof may be cyclized.  In another method the substituted glutaric acid mononitriles, dinitriles or nitrile esters are treated with condensing agents such as concentrated sulphuric acid, acetic anhydride, tin tetrachloride, titanium chloride, boron trifluoride etherates, zinc chloride and aluminium chloride.  Examples describe the preparation of a  - (p - amino - phenyl) - a  - ethyl - glutarimide, the hydrochloride thereof, a -(p-aminophenyl)-a -methyl-glutarimide and the hydrochloride thereof.ALSO:The invention comprises a pharmaceutical preparation comprising a glutarimide of the formula <FORM:0829415/VI/1> wherein R represents the methyl or ethyl group, or a salt thereof or a derivative thereof acylated at the amino group by a fatty acid containing from 1 to 5 carbon atoms, together with a pharmaceutical carrier.  Specifically mentioned is a preparation containing a -(p-amino - phenyl) - a  - ethyl - glutarimide or a salt thereof. The hydrochlorides may be employed parenterally.
Patent GB-620849-A (GB)
Title: Improvements in or relating to direct current, constant voltage regulating circuits
IPC: G05F1/52
Filed: 1946-07-26
Abstract: 620,849. Automatic control systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 26, 1946, No. 22319. Convention date, Oct. 17, 1942. [Class 38 (iv)] Voltage.-In order that a low D.C. potential may be applied across load terminals 4 and still maintain the anode and screen grid potentials of a valve 7 controlling a regulating triode 6 at a sufficiently high value, a resistance of constant volt drop 10, which in the embodiment described is a glow-tube, is interposed between the triode output and the load. The anode and screen grid potentials thus include the total drop across this glow-tube. The battery 11 controlling the grid bias of the pentode 7 is made variable. In modifications the controlling voltage is obtained from the supply terminals or from a potentiometer connected across the load, or else the control voltage is made variable in accordance with the load by deriving it from a resistance in the negative supply lead. A switch 12 may shortcircuit the glow-tube if desired.
Patent GB-738641-A (GB)
Title: Improvements in ball-pointed writing instruments
Inventor: PUCKRIDGE CLARENCE GRAHAM
IPC: B43K7/035
Filed: 1950-09-11
Abstract: 738,641. Reservoir pens; inks. MENTMORE MANUFACTURING CO., Ltd. Sept. 4, 1951 [Sept. 11, 1950], No. 22343/50. Class 146(3). A ball-pointed reservoir pen comprises the combination of a non- capillary reservoir, an ink which will not wet the internal surface of the reservoir to any substantial extent, and a follower member within the reservoir which will follow the ink meniscus as the ink is consumed and is composed of a material which is adequately wetted by the ink. As shown, the reservoir 3 is a tube having a bore of more than 4 mm, and the follower 8 is a wool felt plug having a close sliding fit therein. The reservoir may be of plastic material, such as a polythene or cellulose acetate, or may be lined with such material or with wax. The open end of the reservoir may be fitted with a non-return valve which. prevents the leakage of ink from, but allows the entry of air to, the reservoir, as described in Specification 727,962. According to the Provisional Specification, the follower member 8 may be made from a hollow cylinder of acetate sheet having one end provided with a disc of woven fabric, such as silk, which is of slightly larger diameter than the reservoir bore and contacts the ink. Or the follower member may comprise a disc of woven fabric which is dished and stiffened over its central area by a layer of synthetic resin. Inks. The ink may have a viscosity of from 2 to 4 poise at 140‹F. Compositions by weight of two suitable inks are :-(a) Victoria Blue 20 per cent, ricinoleic acid 35 per cent, rosin 10À5 per cent, and diethylene glycol 34À5 per cent : (b) Victoria Blue 14À4 per cent, Methyl Violet 4À8 per cent, ricinoleic acid 31 À5 per cent, a resin known as " Crestanol " (RTM) 6À3 per cent, rosin 8.2 per cent, diethylene glycol 23À6 per cent, and tricresyl phosphate 11.2 per cent. Where the inner surface of the reservoir is of cellulose acetate, chlorinated diphenyl may be used in the ink instead of tricresyl phosphate.
Patent GB-364133-A (GB)
Title: Improvements in or relating to high potential transformers for rontgen installations
IPC: H01F29/02
Filed: 1930-07-24
Abstract: 364,133. R÷ntgen ray apparatus. KOCH & STERZEL AKT.-GES., 40, Zwickauerstrasse, Dresden, Germany. July 24, 1930, No. 22373, Convention date, July 25, 1929. [Class 98 (i).] Comprises the combination of a R÷ntgen apparatus with a transformer having a high potential secondary winding, the tappings of said winding being associated with at least two tapping regulating devices arranged approximately symmetrical with respect to the electrical induction system. Tappings from the end of the secondary winding are taken to switches 14, 15, Fig. 1, the arms of which connect to the output leads 16. In a modification the secondary winding is divided into two, the inner ends of which are tapped out to switches having earthed arms. With a three-phase transformer, each phase winding has tappings connected to a switch and the three switch arms are connected to form the star-point. In the constmction shown in Fig. 4, the secondary winding 12 is in two parts, each part being mounted on an insulating tube 24 and the tappings brought to studs 27. Contact arms 29 mounted on insulators 30 may be rotated by an electric motor 34 through a worm gear. If the circuit shown in Fig. 1 is used, the arms 30 are mounted on the lead-in insulators. Reference has been directed by the Comptroller to Specifications 263,150, 268,766, and 293,426, [all in Class 38 (ii), Electric currents, Converting &c.].
Patent GB-730149-A (GB)
Title: A process and apparatus for separating trash from fibrous material such as lint cotton and the like
Inventor: DOORN DONALD WILLIAM VAN
IPC: D01G9/00
Filed: 1953-08-14
Abstract: 730,149. Cleaning fibres ; gins. LUMMUS COTTON GIN CO. Aug. 14, 1953, No 22445/53. Class 120(1). [Also in Group II] Trash is separated from an air-borne stream of fibrous material such as lint cotton by impelling a stream of air containing fibrous material and trash through a confined path towards a trash delivery point at super-atmospheric pressure, increasing its velocity and decreasing its pressure to sub-atmospheric prior to reaching the said point, abruptly changing its direction at that point, and intersecting it at that point with a second air stream to entrain the fibrous material only into the high-velocity stream at sub-atmospheric pressure while the trash is delivered from the stream at that point. As shown, lint cotton and trash from a saw-type gin is fed in an air stream, at a pressure slightly above atmospheric, through an inlet duct 31 the width of which corresponds to that of the gin but the depth of which decreases to a throat 39 whereat the pressure is reduced to sub-atmospheric and the speed of the air stream is 3000-5500 feet per minute. Beyond throat 39 the duct changes direction and a trash-discharge opening 51 is provided between the ends 42, 48 of the duct walls 33, 38 respectively. End 48 is formed as a knife edge to break up bunches of lint. Outlet duct 37 leads to a condenser connected to a source of suction. A wall 52 forms one side of a housing 21 for receiving trash. A second air stream, drawn partly through an opening 25 in housing 21, but mainly through the opening between walls 33 and 52, is induced into the main air stream through opening 51. This second stream is sufficient to cause the lint to take an upward turn into duct 37 but is insufficient to prevent the trash from continuing in its initial direction and passing over wall 52 into housing 21 whence it is removed by a conveyer 58. The ends of housing 21 are sealed against conveyer 58 by rollers 61. The ends of walls 33, 38 and 52 are adjustable to vary the size of the openings therebetween. A positive, instead of an induced, air stream through opening 51 may be provided by supplying air under pressure to the space beneath walls 33 and 52. In modified forms of apparatus, the lint duct is formed with two bends, similar trash discharging and collecting means being provided at each bend. Where apparatus as shown is associated with each of a number of side-by-side gins, the outlet ducts 37 may all lead into a common lint flue feeding the condenser, and a single trash conveyer 58 may serve all the housings 21.
Patent GB-598146-A (GB)
Title: Removal of impurities from graphite electrodes
IPC: H01J19/30
Filed: 1945-08-31
Abstract: Metallic impurities are removed from graphite electrodes by treating them with an aqueous solution of an acid such as hydrochloric acid and an oxidising agent such as hypochlorous acid or chlorine at temperatures up to the boiling point of the solution.  If hypochlorous acid is used, periodic additions of sodium hypochlorite may be made to maintain the necessary concentration.  Electrodes are placed on graphite or wooden strips in a rubber-lined steel tank, water and hydrochloric acid are added in amounts to give a 1 per cent. solution and sodium hypochlorite is added to produce a saturated solution of hypochlorous acid.  Steam may be introduced and the solution circulated through rubber pipes and pump.  A rubber vent pipe is provided in the tank cover which fits into a gas seal. Impurities removed are aluminium, iron, magnesium, titanium, nickel, chromium, vanadium, calcium and compounds such as oxides thereof. Specifications 366,973 and 542,363 are referred to.
Patent GB-974405-A (GB)
Title: Improvements in or relating to anthraquinone dyestuffs
IPC: C09B1/54
Filed: 1963-06-06
Abstract: The invention comprises dyes of the formula <FORM:0974405/C4-C5/1> where m is an integer of from one to four and Y is hydrogen or -(CH2)nOH, where n is an integer of from one to four and S indicates that the heterocylic ring is saturated.  The dyes are made by heating a 1-amino-2-halo- or aryloxy - 4 - hydroxy - anthraquinone with an alkali metal salt of an appropriate mono- or dialkanol of tetrahydrofuran in an excess of the alkanol or in an inert organic solvent.  The dyes dye aromatic polyesters and polyamides in yellowish-red shades from aqueous dispersion.
Patent GB-479938-A (GB)
Title: Improvements in and relating to adjusting devices for wireless apparatus
IPC: H03J1/08
Filed: 1936-08-18
Abstract: 479,938. Adjusting wireless apparatus; utilizing inertia to obtain movements in machinery. CZOBOR, E., and CZOBOR, M. Aug. 18, 1936, No. 22737. Convention date, Aug. 22, 1935. [Class 37] [Also in Group XXIV] In an adjustment device for wireless condensers and the like having a manually operated member which drives through a reducing gear the condenser or other part to be operated, there is provided a flywheel, to which motion is transmitted from the manually operated member through a speed increasing gear. By this means the flywheel is started up rapidly. The shafts of the operating knob 2 and the flywheel 3 are parallel and the latter once set in motion drives the condenser shaft 5 and also preferably the shaft of the knob 2 through the gear 4. The knob 2 can then be used as a manual braking and stopping element. Reference has been directed by the Comptroller to Specification 447,559.
Patent GB-982124-A (GB)
Title: Method and equipment for giving service signals
Inventor: SILVA HERMAN DA
IPC: H04L12/00
Filed: 1963-06-07
Abstract: 982,124. Telegraphy. DE STAAT DER NEDERLANDEN, TEN DEZE VERTEGENWOORDIGD DOOR DE DIRECTEUR-GENERAAL DE POSTERIJEN, TELEGRAFIE EN TELEFONIE. June 7, 1963 [June 29, 1962], No. 22772/63. Drawings to Specification. Heading H4P. In a telegraph system in which all possible combinations of a constant length code are accounted for by symbols and functions, service signals, e.g. end of message, are formed of a series of combinations. Since the series may occur fortuitously in the message, means are provided for distinguishing between a service signal and the fortuitous occurrence. In the embodiment described message signals from a punched tape reader are passed over a line to a receiver processor. The series NNNNY indicates the end of message. When the series NNNN is present in the message, tape reading is temporarily stopped and a letter R is transmitted, after which tape reading continues. The receiver includes a four-character store, and is arranged so that the series NNNNR is treated as part of the message-the R being deleted-whereas the series NNNNY causes a Stop signal to be sent to the processor. The end of message series may be followed by repeated pause or idle time signals, e.g. LTRS. The Start of message is indicated by another series of combinations, but it is not necessary to distinguish this from a fortuitous similar series in the message.
Patent GB-267189-A (GB)
Title: Improvements in alternating current signalling systems
IPC: H04L27/24
Filed: 1925-09-12
Abstract: 267,189. Pernot, F. E. Sept. 12, 1925. Alternating-current systems; modifying imperfect signals.-The code elements in an alternating- current system are differentiated by the differences of current strengths of trains of alternations constituting these elements. The different current strength may be produced at the transmitting station or may be due to different attenuation in the line of transmitted trains of alternations of different frequencies. Fig. 1 shows an arrangement for transmitting the signals by controlling the field 3 of an A.C. generator 1 connected to the line. The spacing current is produced by the energizing of the field 3 from a battery 9 through a circuit including the dash key 4<1> and a resistance 10<1>, the field being shunted through the dot key 4 by a resistance 10. Depression of the dot key removes this shunt and connects the resistances 10, 10<1> in parallel in the series circuit of the field 3, thus increasing the strength of the field and of the line current. Depression of the dash key deenergizes the field 3 thus reducing the line current to zero. The field is shunted by a condenser 18 to shape the signals. In another arrangement the dot and dash keys connect an A.C. generator to different tappings of the primary winding of a transformer of which the secondary winding is connected to line. Fig. III. shows a receiving arrangement. The received currents are applied through a transformer 38, 39 to the filamentgrid circuit of a detector valve of which the filament-plate circuit includes the coil 54 of the receiving relay which is shunted by an adjustable resistance 49 and by a condenser 46 for absorbing ripples from the rectified current. The coil is biased by a battery 51 with a series resistance 50 which is so adjusted that zero current is supplied to the coil for a received spacing signal. A bolometer bridge rectifier as described in Specification 218,361 may replace the valve. Specifications 176,827, 178,873, and 203,045 are also referred to in the complete Specification, and Specifications 180,349, 199,848, and 202,784 in the Provisional Specification.
Patent GB-479939-A (GB)
Title: Manufacture of ketones
IPC: C07C45/67
Filed: 1936-08-19
Abstract: Poly-unsaturated aliphatic ketones are manufactured by transforming an a  : b -unsaturated methyl ketone into a salt of a b -aminoketone by reaction with formaldehyde or a substance yielding it and a salt of a secondary amine, and decomposing the b -aminoketone, e.g. by steam or vacuum distillation.  The formaldehyde may be used as an aqueous solution or in the form of paraformaldehyde, which may be dispersed or dissolved in alcohol or in excess of the ketone employed as starting material.  The products are readily polymerizable.  In examples: (1) mesityl oxide is added to a boiling alcoholic solution of paraformaldehyde and dimethylamine hydrochloride, and the product is steam distilled to produce isobutenyl vinyl ketone; (2) ethylideneacetone is added to a boiling methanol solution of paraformaldehyde and diethylamine hydrochloride, and the product is distilled in vacuo, yielding the compound CH3.CH : CH.CO.CH : CH2; (3) crotylideneacetone is boiled with an alcoholic solution of paraformaldehyde and dimethylamine hydrochloride, and the product is steam distilled, producing the compound CH3.CH : CH.CH : CH. CO.CH : CH2. Methylaniline is additionally specified as a suitable secondary amine.
Patent GB-861878-A (GB)
Title: Improvements in piston members and hydraulic devices incorporating such members
IPC: F01B3/00
Filed: 1957-02-12
Abstract: 861,878. Connecting rods. WAHLMARK, G. A. Feb. 12, 1957 [May 9, 1956], No. 22912/59. Divided out of 861,876. Drawings to Specification. Class 122 (1). A piston member having a connecting-rod portion, a head portion and a universal mounting means for the rod comprises a ball-end member including first and second segmental spherical ball portions formed in diametrically opposite relation but with their spherical centres coinciding, the first ball portion being remote from the head portion and having a maximum diameter greater than the maximum diameter of the second ball portion. The subject-matter of this Specification is also to be found in Specification 861,876, of which Fig. 3 particularly illustrates the features of the present invention.
Patent GB-894237-A (GB)
Title: Improvements in drying apparatus for products in the form of a sheet permeable to gases
IPC: F26B13/00
Filed: 1960-07-01
Abstract: 894,237. Drying apparatus. SOC. AMELIORAIR. July 1, 1960 [July 9, 1959], No. 23039/60. Class 34(1) Apparatus for drying a continuous, gaspermeable sheet formed of threads 1 comprises nozzles 4 on one side of the sheet having slotshaped outlets for projecting flat jets of hot air at high speeds through the sheet, and deflecting means on the other side of the sheet for compelling at least a portion of the air to flow back through the sheet in the opposed direction before being evacuated through a heat-exchanger 3 from which the air is recycled by a blower 2 to the nozzles. The deflector means comprise gutters 5, each having a width equal to one half of the distance between the outlet slots of two adjacent nozzles. The gutters adjoin each other to form ridges parallel to the outlets with every second ridge located opposite one of the outlets to divide the air jet therefrom into portions which are deflected towards and through the sheet. The side walls of the nozzles together with horizontal partitions 6 form channels 7 parallel to the outlets to collect the air after its second passage through the sheet, which air flows from the channels 7 into a chamber, the outer walls of which form the outer casing of the apparatus, from which chamber the air flows to the heat-exchanger for recycling.