baber/WOPTO huggingface dataset:
Patent GB-770762-A (GB)
Title: Radio direction finder
IPC: G01S3/06
Filed: 1952-09-01
Abstract: 770,762. Transformers. KRUESI, G. G. Sept. 1, 1952 [Aug. 31, 1951], No. 21964/52. Class 38 (2). [Also in Group XL (c)] A radio-frequency variable transformer comprises two coaxial cylindrical formers 10 and 10a, the former 10 having a hollow portion which surrounds a portion of former 10a. Coils 11 and 12 are wound obliquely on the overlapping portions of formers 10 and 10a respectively and series-connected coils 131, 13<SP>11</SP> are wound normally on the non-overlapping portions of formers 10 and 10a respectively such that relative rotation of the formers varies the coupling between coils 11 and 12, the coupling between each of the coils 11, 12 with the coils 131, 13<SP>11</SP> remaining constant. The transformer is used in a radio direction-finder (see Group XL (c)) for coupling two aerials to a receiver. In one embodiment, Fig. 5 (not shown), the aerials are coupled respectively to coils 11 and 12 and the receiver is completed across coils 13, the coupling between coils 11 and 12 being adjusted by relative rotation of the formers 10, 10a to balance out unwanted coupling between the aerial circuits. In another embodiment, Fig. 6 (not shown), the aerials are coupled respectively to coils 12 and 13 and the receiver is coupled to coil 11, the transformer being adjusted to neutralize unwanted coupling between the receiver and the aerial coupled to coil 12.
Patent GB-779244-A (GB)
Title: A tanning process
IPC: C14C3/18
Filed: 1953-08-10
Abstract: Water-soluble resinous condensation products for tanning hides and skins are obtained by condensing (1) an organic sulphonamide with (2) an oxo-compound or a substance giving off an oxo-compound, and (3) urea, thiourea, guanidine or a derivative of one of these which contains at least one replaceable H atom, the molar ratio of the oxo-compound to the sum of the other compounds being at least 4:1. Condensation components specified are: (1) benzene, naphthalene, p- and o-toluene, alkyl (C2-C12) benzene, butyl, octyl, decyl Nmethyl, cyclohexyl and alkyllcyclohexyl sulphonamides; (2) formaldehyde, paraformaldehyde, trioxymethylene, hexamethylenetetramine formaldehyde bisulphite, methylol, acetaldehyde, crotonaldehyde, benzaldehyde, acetone, acetophenone and cyclohexanone; (3) derivatives-alkylureas, methylene di-urea, urethane, alkyl guanidines, cyanamide, dicyandiamide and dicyandiamidine.  The condensation may be effected by heating the components in aqueous media at 60 DEG  to 100 DEG  C. in the presence or absence of condensing agents, e.g. borax, or precondensates may first be made from the sulphonamides or amido compounds and the oxocompounds and further condensed with the remaining components.  The condensates may be dried in vacuo or be spray dried, and may be converted to the insoluble state by means of electrolytes, e.g. formic acid, first runnings fatty acid mixtures, and ammonium chloride, or by heating. The synthetic resin tanning may be combined with a fatty tanning, i.e. a tanning with compounds containing a fatty acid radical, or tanning with formaldehyde, with chromium or aluminium salts, or with a vegetable tanning.  Water-soluble fatty tanning compounds specified are salts of alkyl sulphates with inorganic or organic bases, salts of alkyl or aryl sulphonic acids or of sulphonated oils or fats, salts of fatty acids, resin acids or wax acids; condensates of proteins or their decomposition products with fatty acid or sulphonic acid halides or with higher molecular weight halogen fatty acid esters or amides; trimethyloctadecyl- and dimethylcyclohexyloctadecylammonium chlorides, dodecyl pyridinium bisulphate, ethylene oxide addition products of high molecular weight alcohols, carboxylic acids, amines, mercaptans or of high molecular weight of alkaryl or aryl sulphonic acids or sulphonamides according to Specification 748,995, [Group IV (b)], and condensates of these high molecular weight compounds with ethylene glycol, glycerol, polyglycerols, pentaerythritol, dulcitol, sorbitol, and mannitol. Examples are given.
Patent GB-597794-A (GB)
Title: Manufacture of 4-aryl-piperidine-4-carboxylic acid esters
Filed: 1945-08-27
Abstract: 4-Aryl-piperidine-4-carboxylic acid esters are obtained by heating (e.g. at 200-250 DEG  C.) 4-aryl-piperidine-4-carboxylic acid betaines having hydrocarbon radicals attached to the piperidine nitrogen atom, e.g. by dry distillation, with or without applying reduced pressure, or in a solvent of high boiling point.  The aryl nucleus may be substituted whilst the piperidine nitrogen atom may have attached thereto methyl, ethyl, propyl, ally, benzyl or penylethyl radicals, and the piperidine nucleus may contain further substituents.  In examples, 1 : 1-dimethyl-, 1 : 1-diethyl-, and 1 : 1 : 2-trimethyl - 4 - phenyl - piperidine - 4 - carboxylic acid betaines are heated alone or in a solvent of high boiling point, e.g. decahydronaphthalene, to produce the corresponding ester; 1 : 1-methyl-benzyl-4-phenyl-, 1 : 1-methyl-allyl-4-phenyl and 1 : 1-dimethyl-4-tolyl-piperidine-4-carboxylic acid betainers are heated under reduced pressure to produce the benzyl, allyl and methyl esters respectively; 1 : 1-methylethyl - 4 - phenyl - piperidine - 4 - carboxylic acid betaine is rapidly distilled without applying reduced pressure to produce 1-ethyl-4-phenyl - piperidine - 4 - carboxylic acid methyl ester.  4-Aryl-piperidine-4-carboxylic acid betaines are obtained by the hydrolysis, e.g. by means of mineral acids, with subsequent treatment with strong alkalis, e.g. potassium hydroxide, calcium hydroxide, or silver oxide, of 4-aryl-4-cyano-piperidinium salts, e.g. 1 : 1-dimethyl-4-phenyl-, 1 : 1-diethyl-4-phenyl-, 1 : 1 : 2-trimethyl-4-phenyl-, 1 : 1-methyl-benzyl-4-phenyl-, 1 : 1-methyl-allyl-4-phenyl, 1 : 1-dimethyl-4-p-tolyl, and 1 : 1-methy-ethyl-4-phenyl-4-cyanopiperidinium bromide. Specification 591,992 is referred to.
Patent GB-186780-A (GB)
Title: Improvements in or relating to hair combs
IPC: A45D24/08
Filed: 1921-08-19
Abstract: 186,780. Hammond, Turner, & Sons, Ltd., and Cotton, B. R. Aug. 19, 1921. Combs, hair.-In a hair comb of the type having a casing from which the comb is projected by means of pins on a sliding member coacting with slots in the comb, the pins e pass through inclined slots f in the comb member a and through a longitudinal slot c in the casing b, and are secured at each end to an external U-shaped operating member d which embraces the casing.
Patent GB-243118-A (GB)
Title: Improvements in or connected with shaving brushes
IPC: A46B5/00
Filed: 1925-06-18
Abstract: 243,118. Job, A. S. June 18, 1925. Brushes combined with soap holders; sheaths and cases; bristles, bridles for. - A shaving brush comprises an outer tubular section 5, containing a stick of soap 6, internally screw-threaded to receive an inner tubular section 4 with a top 4<a> of which serves to project the soap from the member 5. The brush stock 9 is reversibly secured to the screwed lower end of the section 4 by a knurled nut 10. The upper end 5a of the section 5 is turned inwardly to constitute a resilient gripping means for the stick of soap and is provided with a cap. The brush is provided with a rubber ring 11 by which the bristles are drawn together when housed within the section 5. In a modification the section 4 slides within the section 5, a locking screw maintaining the parts in position. The section 4 may be formed longer to provide a receptacle for a tube of tooth paste and a short handled toothbrush, a sponge or other toilet requisite.
Patent GB-1465724-A (GB)
Title: Internal combustion engine combustion chambers
IPC: F02B3/06
Filed: 1974-05-17
Abstract: 1465724 Pistons MAHLE GmbH 17 May 1974 [30 May 1973] 22032/74 Heading F2T [Also in Division F1] An I.C. engine comprises a piston 1 provided with a bombustion chamber 2 and means for protecting the edge of the mouth of the chamber, the means being arranged to provide protection only to the part of the edge adjacent unstiffened sides of the piston and each subtending an angle of not more than 90 degrees at the central point of the combustion chamber. The "means" may be screens 6, 7 (Fig. 1) projecting from the cylinder head 5 or inserts (11), (12), (Fig. 4, not shown). It is stated that in the regions of the edge not protected by the inserts or screens, the mechanical and thermal stresses balance each other out and the regions protected by the inserts or screens are relieved of thermal stress and subject only to compressive mechanical stress.
Patent GB-396936-A (GB)
Title: Improvements in or relating to sheet feeding mechanism
IPC: B65H5/16
Filed: 1932-08-05
Abstract: 396,936. Feeding sheets. HOE & CO., Ltd., R., 109, Borough Road, London.- (Hoe & Co., Inc., R.; 138th Street, New York, U.S.A.) Aug. 5, 1932, No. 22057. [Class 100 (i).] Mechanism for feeding tin sheets, pasteboard sheets, &c. to printing &c. machines comprises at each side of the machine a reciprocating pusher 65 pivoted to a carriage 56 which is reciprocated on a track 52 by means of a continuously driven chain 48 provided with a projection 76 engaging a vertical guide 75 on the carriage. The mechanism is adjustable for dealing with sheets of different widths, the frames 24, 25 in which the pushers are mounted being movable laterally by means of screw-threaded shafts 15, 18 operable by a chain 22. The shafts 15, 18 extend across the machine and at one end have left-handed threads, and at the other end right-handed threads. The sheets are advanced initially over a table formed with metal guides 86, 87, 88, by means of feed rollers 39, 43, driven by gearing from a shaft 17 which also drives a cam 85 for controlling the raising and lowering movements of the pushers 65. Each pusher is pivotally mounted and is maintained in a raised position by a spring 68 acting on a washer 69 on a rod 67 pivoted to the pusher and guided by a lug 66. The pusher is moved out of its vertical position to the dotted line position shown in Fig. 6 as its carriage returns to feed a new sheet. This movement is effected by a pivoted guide 77 in which a roller 74 on the pusher carriage 56 engages. The guide 77 is supported by a pivoted spring-pressed rod 80, and can be depressed against the action of the spring by means of the cam 85, lever 82, and link 81. The pusher carriage 56 can be adjusted longitudinally for dealing with sheets of different length.
Patent GB-791995-A (GB)
Title: Sulphonation of organic liquids
Inventor: DAVIES DONALD GRAHAM
IPC: C07D327/02
Filed: 1956-07-17
Abstract: <PICT:0791995/IV (b)/1> Sulphonatable organic liquids are sulphonated by a process comprising continuously atomizing the organic liquid in a gaseous stream consisting of a mixture of sulphur trioxide and an inert gas, continuously passing the gaseous stream containing the atomized liquid up through a column of already sulphonated organic liquid and continuously withdrawing sulphonated product.  The sulphonatable organic liquids may be alcohols, fatty acids, fatty oils or hydrocarbons such as petroleum fractions, C8-20 olefines and alkyl aromatic hydrocarbons, for example, C9-18 alkylbenzenes and toluenes and alkylated naphthalenes, diphenyls, anthracenes and phenanthrenes.  The sulphur trioxide may be that obtained by oxidation of sulphur dioxide, by distilling oleum or by heating liquid sulphur trioxide.  The inert gas may be air, nitrogen, carbon dioxide or monoxide, or sulphur dioxide and preferably constitutes 75-97 per cent of the SO3-containing stream.  Reaction temperatures between 40 DEG  and 90 DEG  C. may be used.  Examples describe the sulphonation of a mineral lubricating oil (140 secs. Redwood 1 viscosity at 100 DEG  F.) wherein the oil, after pretreatment with sulphuric acid, is pumped through line 3 into an injector 2 supplied at 1 with a gaseous stream of SO3, SO2 and air; the gaseous stream comprising atomized oil is passed into a column 5 maintained at 56 DEG  or 80 DEG  C. and containing already sulphonated oil; product is withdrawn at outlet 7 and neutralized with aqueous NaOH.  A higher yield of sulphonates is obtained as compared with that resulting when the stream from the injector is merely discharged into a tank, as described in U.S.A. Specification 2,523,582.  Effluent gas substantially free from SO3 leaves the column at 10.  Alternative liquid-product outlets are provided at 6 and 8 to allow variation of contact time in the column by adjustment of the liquid level in the column.
Patent GB-295321-A (GB)
Title: Cathode ray oscillographs
IPC: H01J29/46
Filed: 1928-07-31
Abstract: 295,321. Norinder, E. H. Aug. 9, 1927, [Convention date]. Vacuum tubes.-Cathode-ray oscillographs for automatically recording electrostatic, and magnetic field variations such as those produced by lightning discharges and other transient disturbances are provided with a target electrode 9, Fig. 7, intercepting the undeflected cathode beam and preventing its impinging on the recording surface and with oppositely acting deflecting devices such as plates 8, 11 or coils in front of and behind the target 9 and deflecting the beam around the target 9. The recording surface, such as a photographic film in the metal body, 1, is moved relatively to the beam transversely to the defections. The film may be rapidly rotated or the beam oscillated transversely to the defections, by the field of a coil carrying alternating ing current. To record in an unfogged portion of the film, the origin of the record may be deviated by deflecting plates or coils 13 supplied with steady current, the coils being preferably inside the tube. An apertured screen 12 between the parts 11, 13 concentrates the deflected beam. The target 9 is maintained at a definite potential or insulated but is preferably earthed. The tubular anode 6 may be watercooled and is earthed and the cathode 5 is maintained at a negative potential of say 60,000 volts. On connecting the plates B, 11 as shown to earth and to a potential divider B connected to a highpotential line A. no record is obtained except for a lightning discharge &c. The centre of the record has a. dark band due to the, target 9 and the width of this band may correspond to the normal voltages in the line A. The tube is of metal except for the glass tube 4 connecting the anode 6. and the cathode 5. The plates 8. 11, the screen 12 and the coils 13 are mounted in removable frames 7, 10 in metal tubes 3, 2. The parts 1, 2, 3, 6 have conical joints and the ends of the tube 4 are cut off and ground at right angles to the axis of the tube. The leads 18, Fig. 2, to the parts 5, 8, 11, 13 are insulated from and supported by conical plugs 14 detachably sealed by grease into seatings in a ferrule 15 and in the tubes 2, 3. Vacuum-maintaining compounds may be used at the joints at the ends of the tube 4. The Specification as open to inspection under Sect. 91 (3) (a), comprises also a reference to a gas pressure of 6-10 microns in the tube 4 and 1 micron in the parts 1, 2. This subject-matter does not appear in the Specification as accepted.
Patent GB-406209-A (GB)
Title: Improvements in and relating to bevel-closing chucks
IPC: B23B31/12
Filed: 1933-08-09
Abstract: 406,209. Chucks. KUPKE, F. W., (trading as KUPKE WERKZEUGFABRIK, F. W.), 21, Fr÷belstrasse, Gera, Germany. Aug. 9, 1933, No. 22285. Convention date, Aug. 25, 1932. [Class 83 (iii).] In a bevel-closing chuck an internally coned closing sleeve has a screw thread formed in the interior thereof and interrupting the conical surface approximately at the middle. As applied to a hand operated chuck, the bevelled sleeve a, Fig. 1, has a conical surface b cooperating with the jaws h and an internal screw thread c bv which the sleeve is attached to the end of the chuck body e. The jaws h are moved axially in the sleeve a by means of a ring v screwing within an internally threaded sleeve u which may be rotated by hand. The jaws slide through bevelled recesses g in the body e and the axial thrust is taken by a ball bearing w. As applied to a self-tightening chuck the jaws h, Fig. 2, are radially movable in a ring n held in the body o by means of a spring ring r and the closing sleeve m is elongated to be guided on the body and is attached by the internal screw thread c to a carrier e which screws axially within the body o. A ball bearing q takes the axial thrust on the ring n.
Patent GB-1220924-A (GB)
Title: Reaction vessel for contacting liquids and gas
Inventor: JONES ERIC LLOYD
IPC: B01J19/24
Filed: 1967-05-13
Abstract: 1,220,924. Contacting gases with liquids. BP CHEMICALS (U.K.) Ltd. 16 April, 1968 [13 May, 1967], No. 22295/67. Heading B1R. Liquid contained in closed vessel 1 is contacted with gas issuing from ring 5 in finely divided form, and flows up outside tube 2, and then down inside tube 2. Cup 6, improves the gas/liquid separation at the top of tube 2 and reduces foam formation. Gas leaves via 7. Tube 2 is supported by sets of arms 3 and 4. The tops of tube 2 and cup 6 may be slotted. The reactor may be used in the liquid phase oxidation of hydrocarbons with molecular oxygen to give acids.
Patent GB-397300-A (GB)
Title: Improvements in or relating to electrolysers for the manufacture of chlorine and alkaline hydrates
IPC: C25B9/20
Filed: 1933-08-09
Abstract: 397,300. Electrolytic cells. POUYAUD, C., Place Ducoderc, Perigueux, Dordogne, France. Aug. 9, 1932, No. 22343. Convention date, Aug. 11, 1931. [Class 41.] In a cell of the filter-press type for the manufacture of chlorine and alkalies the cubic capacity of the anode compartments is made greater than that of the cathode compartments in order to avoid loss of alkali by ionic migration. The anode compartment comprises slate plates I, J, Fig. 1, the latter perforated, bolted to a frame M. The anode consists of graphite blocks L on which a lead block M is cast so as to include conductors N. The block M is jointed to the frame by a sheet of soft rubber. Joints between the slate members are rendered watertight by a semiliquid pitch containing vulcanized rubber in solution. The cathode consists of a perforated steel plate S, Fig. 3, on which are riveted sheet iron bands T. The cathode compartment is completed by a slate plate R and frame Q ; the space within is partially filled by briquettes U of dielectric material. Between the compartments a non- filtering diaphragm of asbestos board impregnated at the edges with a mineral oil is mounted. The anolyte is passed in succession through all the cells in the direction of the current and the catholyte in the opposite direction. The electrolyte after passing through the anode compartments may be cooled in order to lower its conductivity and then passed through the cathode compartments. Auxiliary coolers mav be inserted in the connections between successive cathode compartments. The circulation is regulated in order to control the strength of alkali by raising or lowering the catholyte outlet.
Patent GB-379829-A (GB)
Title: Improvements in or relating to vacuum cleaning and polishing apparatus
IPC: A47L11/164
Filed: 1931-08-07
Abstract: 379,829. Vacuum cleaner attachments for brushing, drilling, &c. UNITY LAMP & ACCESSORIES, Ltd., 41, Call Lane, and HODGSON, F. E., 20, Wellington Road, both in Leeds. Aug. 7, 1931, Nos. 22350/31 and 12523/32. [Class 8 (i).] A flexible shaft 12 is detachably secured by a sleeve 8 to the motor shaft of a vacuum cleaner and actuates a brushing, polishing, or drilling tool. The sheath of the flexible shaft carries a casing 15 having grooves 16 co-operating with lugs on a projection 7 from the motor end plate ; the casing has lugs 21 coacting with lugs 20 on a spring lid 19. The free end of the flexible shaft is screwed to receive a ferrule 45 of a brush &c., and extends through a squared block 43 formed on the sheath. In modifications, the extension houses a pinion 23, Fig. 6, driving a gear wheel 22 screwed to a plate on the flexible shaft; the housing is carried by the sheath of the shaft, and attached by bolts 36 to the motor plate ; the shaft of the pinion 23 has a tongue 33 entering a slot in the motor shaft. The waxing and polishing brush 61, Fig. 1, is reversibly pivoted on the ferrule 45, a slot 64 being cut in it to allow the reversal ; a rod 59 is clipped to the flexible shaft for use as a handle. Fig. 10 shows a plate 46 replacing the ferrule 45 ; brushes 52 are secured to this plate by pins 53 projecting through slots and gripped by springs 48. Fig. 12 shows a furniture polisher in wh ch bristles are inserted in a round stock 67; or a tapered brush is formed on twisted wire axis 69. For drilling, a chuck is screwed on the end of the flexible shaft. A clamp 56, Fig. 13, formed in-two parts, supports the squared end of the sheath for polishing forks, spoons, &c. Fig. 15 shows a vacuum cleaner in which the external dust bag is removed and replaced by a cap 77 carrying a spring clip for the end of the shaft ; the cap is held by a pin and slot ; a clip may be secured on the handle as a substitute for the table clamp.
Patent GB-167956-A (GB)
Title: Improvements in or relating to golf clubs
IPC: A63B53/04
Filed: 1920-07-27
Abstract: 167,956. Rodwell, C. H. July 27, 1920. Golf clubs.-The head of a putter is provided on its upper surface, above the centre of the striking-face, with a raised semicircular portion B and a notch C, to guide the eye of the player. The striking-face D is slightly lofted and the side F of the shank is flattened.
Patent GB-230373-A (GB)
Title: An improved lock for a cycle lamp bracket
IPC: B62J6/02
Filed: 1924-09-23
Abstract: 230,373. Hogg, J. Sept. 23, 1924. Fastenings operated by tools. - Unauthorized. removal of a vehicle lamp from its bracket A, A<1> is prevented by means of a hinged plate C on the bracket engaging over a pillar member B rigidly secured to or formed integrally with the bracket, the plate C being held in the operative position by a screw D engaging the end of the member B and adapted to be unscrewed by a particular member.
Patent GB-738112-A (GB)
Title: Improvements in or relating to implement tire
Inventor: DAUGHERTY WALTER JAY
IPC: B60C15/02
Filed: 1953-08-14
Abstract: 738,112. Wheel tyres. FIRESTONE TIRE & RUBBER CO. Aug. 14, 1953, No. 22509/53. Class 144 (2). A hollow cushion tyre 10, for a farm implement wheel such as a gauge wheel, and comprising a base 14 and a crown portion 11, is provided on the inside of the base 14 with continuous circumferential ribs 15, 16 to limit deflection of the tyre under load, Fig. 4, and on the exterior of the base 14 with a series of transverse grooves 18 to engage complementary transverse ribs 18a on a wheel rim 17 and thereby prevent tyre slip. As shown the tyre 10 is of oblate section and the ribs 15, 16 extend radially between 15 and 30 per cent of the overall cross-sectional height of the tyre to project beyond the rim flanges 5, 6 which support the tyre side walls.
Patent GB-830350-A (GB)
Title: Improvements in or relating to compressed air-operated spray devices
IPC: B05B7/24
Filed: 1956-07-20
Abstract: 830,350. Spray-producers. SCHEID, E. M. July 20, 1956 [July 23, 1955; March 8, 1956], No. 22531/56. Class 69 (3). A sprayer of the kind operated by the air delivery from a vacuum cleaner includes a spray head 10 attached to a liquid container 12, and a slide valve 22 movable longitudinally of the head which controls the supply of compressed-air to the container from a main duct 13, and hence the spraying operation. In the spraying position a chamber 25 in the lower surface of the valve connects the outlet of a bore 17 in the upper wall of the duct 13 with the inlet of a duct 18 which feeds air into the container. Fig. 1 shows the valve in the closed or non-spraying position. Fig. 3 shows diagrammatically the spray position of the slide valve; the chamber 25 has auxiliary chambers 27, 28 interconnecting the bore 17 and duct 18. As the valve is moved rearwardly a duct 26 passes over the duct 18 to vent to atmosphere a proportion of the compressed air being supplied to the container; a regulation of the spraying is thereby obtained until the bore 17 and duct 18 are finally closed. The valve may include an aperture 33 which connects the bore 17 to atmosphere in the non-spraying position.