baber/WOPTO huggingface dataset:
Patent GB-412108-A (GB)
Title: Improvements in refrigerating liquid
IPC: B66D1/24
Filed: 1933-11-17
Abstract: 412,108. Cooling-mixtures. SCHULZ, M., and MEHLHOSE, H., 5, Nornenstrasse, N³remberg, Germany. Nov. 17, 1933, No. 32087. Convention date, Nov. 25, 1932. [Class 29.] A refrigerating liquid comprising a strong salt solution such as calcium, magnesium or sodium chloride contains a reducing agent to inhibit the formation of free oxygen in the liquid. The reducing agent may comprise a salt of sulphurous, polythionic or hydrosulphurous acid, pyrogallol or ferrous salts, or it may be wholly or in part replaced by a substance, such as sugar or an alcohol, which reduces the oxygen solubility in the liquid.
Patent GB-466031-A (GB)
Title: Improvements in or relating to electrically controlled light valves
IPC: G02F1/19
Filed: 1935-11-20
Abstract: 466,031. Electro-optical light valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., MYERS, L. M., and GOODENOUGH, E. F. Nov. 20, 1935, Nos. 32116 and 32117. [Classes 39 (i) and 40 (iii)] A light valve utilizes electrical forces to neutralize or reduce the " adhesion " attraction between bodies in optical contact. A totally reflecting prism 1, Fig. 1, projects light from 2 through a lens system 4 to a screen. The prism surface 1a is optically worked and small particles 5, e.g. of mica, are scattered on it and adhere to the surface to produce absorption of the incident light so that the prism ceases to act as a total reflector. A cathode-ray beam, modulated in intensity, scans the surface 1a and charges the particles to cause them to be repelled from the surface, break the optical contact and render the prism totally reflecting at the point being scanned. In a modification, carbon particles 9,.Fig. 2, are scattered on the surface 1a and covered by a mica sheet 10 provided with a layer of conducting material. The carbon particles are charged positively so that the conductive layer is charged positively by induction. The scanning cathode ray charges the conductive layer to attract the carbon particles and render the prism totally reflecting. A mica sheet 12, Fig. 3, may be placed next the surface 1a, and the cathode ray scans a second mica sheet 13 to charge it to produce attraction of the sheet 12 away from the prism surface la. In another modification, the surface 1a, Fig. 4, is silvered and a mica sheet 14, having carbon particles 15, placed over it. The scanning cathode ray charges the carbon particles to make optical contact with the mica sheet 14 and so render the prism locally non-reflecting. In a further modification, the prism is replaced by a lens 18, Fig. 5, having mica crystals scattered on it and covered by a mica sheet 20 with a conducting layer on its face scanned by the cathode ray. The small mica crystals normally rest on the lens surface and effectively disperse the light. On being scanned by the cathode ray, the mica crystals suffer local orientation to allow light to pass to, and be reflected from, the mica sheet 20. A collector ring 16 may be employed; by charging it positively with respect to the anode of the tube, if secondary emission from the scanned surface occurs, the elemental areas may be positively charged. By charging the ring negatively, the elemental areas -may be negatively charged.
Patent GB-263494-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs of the anthraquinoneseries
IPC: C09B5/04
Filed: 1926-12-21
Abstract: 263,494. I. G. Farbenindustsie Akt.- Ges. Dec. 22, 1925, [Convention date]. Pyrazoleanthrone, dyes derived from. - Red vat-dyestuffs are obtained by treating with alkaline condensing agents the products of the action of alkylating agents on pyrazoleanthrone or its nuclear substitution products. By the alkylation two products are obtained only one of which is convertible into the colouring matter. According to an example the product obtained by heating pyrazoleanthrone with p-toluenesulphonic methyl or ethyl ester in presence of sodium carbonate and trichlorbenzene is fused with ethylalcoholic potash. The resulting dyestuff dyes cotton from a blue vat in bluish-red shades. Specification 14103/15 is referred to.
Patent GB-267627-A (GB)
Title: Improvements in bourdon pressure gauges
IPC: G01L7/04
Filed: 1925-12-22
Abstract: 267,627. British Launderers' Research Association, Parker, R. G., and Jackman, D. N. Dec. 22, 1925. Bourdon pressure gauges.-The pressure tube 1 is connected by a link 4 to a lever 5 carrying a toothed rack or quadrant 14 engaging with a pinion 13 on an arbor 12 carrying the indicating hand, the lever being mounted on a plate 9 which is movable in relation to the arbor in order to give a variable zero adjustment. The instrument is particularly intended for use with the means for determining the weight of the contents of receptacles described in Specification 259,662, [Class 143, Weighing-apparatus], in which it is necessary to provide for variation of the zero of the instrument in order that it may read " zero " under the dead weight of the empty receptacle. The plate 9 is pivoted about the same centre as, and carries the arbor 12, and is provided with an arm held against an adjusting screw 19 by a spring 18. The link 4 is adjustably connected to the lever 5 by a screw and slot. The dial is graduated in weights and volumes and the bezel is provided with adjustable indicators which may be set to indicate particular weights or volume.
Patent GB-660218-A (GB)
Title: Improvements relating to coil winding machines
Inventor: VERGES PAUL
IPC: H01F41/08
Filed: 1948-12-14
Abstract: 660,218. Winding toroidal coils. SOC. ANON. DE TELECOMMUNICATIONS. Dec. 14, 1948 [Dec. 19, 1947], No. 32374/48. Class 83 (iv). In a toroidal coil winding machine a temporary connection is established between a mechanical drive and the grooved ring magazine for the wire at moments of peak winding tension. A coil is wound with wire from a magazine 32, Fig. III, freely supported by pulleys 35, the wire passing over a pulley 34 mounted on a driven ring 33. The ring 33 is flexible and mounted on pulleys 39 which are axially movable by a solenoid 38 to deflect the side of the ring 33 into friction driving contact with the side of the magazine 32. The solenoid is operated at the moments of peak tension by a switch 40 which is closed by a cam face 41 on the ring 33. In a modification the switch 40 and solenoid 38 are replaced by a push-rod system actuated by a cam on the ring 33. In another example a magazine 61, Fig. VI, is supported by pulleys 62 on a spider 63 which is biassed by a spring 68 in a direction opposite to the direction of winding and carries a pinion 64 in engagement with teeth on the periphery of the magazine 61. The pinion 64 is directly coupled to a wheel 65 which may frictionally engage either of two oppositely rotating driving- wheels 66, 67. When the tension in the wire exceeds a given value the wheel 65 engages the wheel 67 and the magazine is thereby accelerated in the direction of winding to reduce the tension. When the wire becomes slack the wheel 65 is urged by the spring 68 against the wheel 66 which retards the magazine and eventually rotates it in the direction opposite to the winding direction until the slack is taken up.
Patent GB-1163798-A (GB)
Title: Improvements in Window or the like stays
IPC: E05D15/46
Filed: 1967-07-13
Abstract: 1,163,798. Window stay. INTERLOCK INDUSTRIES Ltd. 13 July, .1967 [18 July, 1966; 24 Aug., 1966; 4 Nov., 1966], No. 32380/67. Heading E2F. A window or like stay comprises a first plate 10 adapted for attaching to a frame of a window, two arms 12 and 13 of different lengths each pivoted at one end to the plate 10 and at the other end to a second plate 14, adapted for attaching to a sash of the window, and self-lubricating plastic bushings 21 located at pivot points 16 of the arms, each pivot point being recessed in a housing in the particular arm so that under sufficient pressure the rotary frictional contact produced 'will support the window at any desired position. As shown in Fig. 7, at each pivot point 16 each pivot housing is counterbored from both faces of the respective arms 12 and. 13 to a depth so as to have a clearance under the head of the metal rivet 18. As the shank .of each rivet 18 is smaller than the central clearance hole in the arm 12 and 13, a plastics e.g. nylon bushing 21 may be forced down into the countersinks and around the rivet shank to prevent the metal rivet touching its metal supporting arm. A lock washer 19 is provided on the underside of the tail 20 of the rivet 18 to prevent the latter from turning. Alternatively, a wearresistant washer may be provided between the tail 20 and the fixed plate 10 Of 14. In a modification for a split rail sash '(Figs. 2 and 3, not shown), the sides of a section .of the plate 10 are turned up to form a track in which a shoe 23 pivoted at one end of the upper arm 13 can slide between a top friction point 25 and a stop 26 on the plate 10.
Patent GB-375684-A (GB)
Title: Production of artificial waves in swimming pools and the like
IPC: E04H4/00
Filed: 1931-11-23
Abstract: 375,684. Wave-producing apparatus for swimming-baths &c. BAMAGMEGUIN AKT.-GES., 10, Reuchlinstrasse, Berlin. Nov. 23, 1931, No. 32407. Convention date, Dec. 2, 1930. [Class 26.] In order to produce waves in a swimming-bath &c. air in a chamber 3, Fig. 1, is rarefied by means of a pump so that water is drawn in through an aperture 12 ; air is then admitted through a valve 6 to cause the descent of the water. The chamber 3 consists of a flat box at the rear of the bath and may be divided into two or more compartments by partitions 5, Fig. 2 ; a pump 9 runs continuously and communicates with each compartment by means of a pipe 8. The valve 6 is suspended from a crank 10 rotated by a motor 11 which is set running to open the valve when the compartment is full and to close the valve when the return of the wave forces water into the compartment. An adjustable time-switch may be used to control the motor, whilst the compartments of the box may be operated simultaneously or alternately.
Patent GB-303981-A (GB)
Title: Improvements in and connected with coal bunkers
IPC: F24B15/04
Filed: 1927-12-02
Abstract: 303,981. Rosefield, M. Dec. 2, 1927. Coal boxes.-In a fixed or movable coal bunker, especially suitable for domestic use, and of the kind having an upper chamber of truncated pyramidal form for the large coal and a lower chamber into which the small coal falls, a square casing is employed, internally sloped towards a - central grating and the lower chamber, and two receptacles with hinged doors are provided, one at each end of the casing of which they form a part. In the form shown, the bottom B of the casing A is sloped to a central grid C above the chamber D in which the slack coal collects. The casing has a hinged top E and side door F, and additional doors I, M, N are provided for the receptacle D and storage chambers K, L respectively. The chambers K, L may be used for storing wood &c.
Patent GB-302344-A (GB)
Title: A new or improved temperature actuated electric switching device
IPC: G01K5/16
Filed: 1928-11-07
Abstract: 302,344. Akt.-Ges. der Maschinenfabriken Escher, Wyss, et Cie. Dec. 15, 1927, [Convention date]. Controlling consuming devices.-A device for maintaining temperature between limits k<2>, k<3> on a thermometer K includes a relay M which is actuated to break the main heating or consuming circuit 3, 4 when the top limit k<3> is reached and is only de-energized to allow this circuit to be remade when the lower limit k<2> is reached. According to the invention this is achieved by connecting the points k<2>, k<3> by a resistance so proportioned that the current through the relay M by way of contact k<2> and the resistance is insufficient to actuate the relay but is sufficient to retain it actuated. The Specification as open to inspection under Sect. 91 (3) (a) describes a construction viz., that shown in Fig. 1, (Cancelled) in which when the mercury in the thermometer K reaches the point k' a secondary circuit between the points 1, 2 is closed to the relay M, the core of which then moves to the left and not only breaks the main circuit 3, 4 at s<2> but also completes a maintaining circuit at s<1> and through the contact k<2> which maintains the current through the coil M while the mercury falls between the points k<3>, k<2>. This subject-matter does not appear in the Specification as accepted.
Patent GB-820114-A (GB)
Title: Process for the manufacture of benzonitrile
IPC: C07C255/49
Filed: 1955-11-14
Abstract: Benzonitrile is prepared by passing phthalimide, or substances capable of forming phthalimide under the conditions of the process, at a temperature from above 360 DEG  C. and up to about 500 DEG  C. over large-pored silica gel having a bulk density of below 0.5. The process may be carried out at atmospheric or subatmospheric pressure and the phthalimide vapour may be diluted with an inert gas such as air, nitrogen, ammonia, carbon dioxide, water vapour or benzene vapour.  The phthalimide may be formed in situ by reaction between phthalic anhydride and ammonia.  In examples: (1) phthalimide diluted with nitrogen, ammonia or air is passed over large-pored silica gel at 410 DEG  C. to give benzonitrile; (2) a p  steam of air charged with phthalic anhydride is mixed with the ammonia, the mixture is passed over heated large-pored silica gel to give benzonitrile.
Patent GB-903615-A (GB)
Title: Decarbonylation of furfural and alkyl furfurals
IPC: C07D307/36
Filed: 1960-09-22
Abstract: The following supported palladium catalysts for the preparation of furans from furfurals (Group IV(b)) are described: 10% by weight of Pd on BaSO4; 10% by weight of Pd on a finely divided mixture of gamma and alpha alumina having a surface area of approximately 100 sq. metres per gram; 10% by weight of Pd on carbon; 5% by weight of Pd on carbon.  The catalysts are used in conjunction with basic salts of alkali and alkaline earth metals. They may be prepared by precipitating palladium hydroxide or oxide on the support and then reducing.  The reduction may be effected by the furfural reactant.ALSO:Furan and alkylfurans are prepared by heating furfural or alkylfurfurals in the presence of a palladium catalyst and a basic salt of an alkali or alkaline earth metal, basic salts being defined as those which produce a pH of not less than 8 at a concentration of about 0.1% by weight in aqueous solution, but excluding salts of acids which are known poisons for Group VIII metal catalysts. Specified basic salts include alkali metal carbonates, phosphates, phthalates and tetraborates and calcium carbonate.  Fresh basic salt may be added as the reaction proceeds.  In a modification the furfural is first contacted with the basic salt and then with the palladium catalyst.  The furfural is preferably in the liquid phase, heated to a vigourous boil, the furan being distilled off and unreacted furfural returned as reflux.  An inert solvent may be used e.g. dimethyl or dibutyl phthalate.  The temperature is preferably above the boiling point of furfural.  Elevated pressure may be used. The catalyst may be on a support and may contain 1.20% of palladium. The reaction liquor may contain 0.1 to 10% by weight of the supported catalyst and the weight ratio of supported catalyst to basic salt may be from 1:1 to 1:20.
Patent GB-337955-A (GB)
Title: Improvements in or relating to valve apparatus for controlling fluids
IPC: G05D16/12
Filed: 1929-10-28
Abstract: 337,955. Ionides, A. C. Oct. 28, 1929. Pressure regulating and reducing valves.- Apparatus for controlling the pressures of fluids or maintaining a desired relationship between the pressures of two fluids, such as gas and air, comprises two separate chambers a, b each in communication with a. limb of a liquid-filled U- tube arrangement, i, k, j, in the limbs i, j of which two hollow floats i<1>, j<1> are arranged. The said floats i<1>, j<1> are interconnected by a fulcrummed beam l and are flexibly connected to the spindles of two balanced valves e, e<1> and f, f<1> respectively which control the flow of fluids into the chamber a and b through the inlet ports c, d. In this way the fluid pressures in the chambers a and b may be controlled or, by varying the weights &c. of the parts connected to the valves e, f, may be maintained at a fixed relationship to one another. The spindle of one of the valves, such as f, f<1>, may be carried through the casing to an adjustable fulcrumed balance weight (not, shown) in order to balance, the arrangement to a greater or lesser extent. Specification 160,873 is referred to.
Patent GB-160723-A (GB)
Title: Improvements in means for lubricating the bores of guns using fixed ammunition
IPC: F41A29/04
Filed: 1920-11-19
Abstract: 160,723. Auto-Ordnance Corporation, (Assignees of Eickhoff, T. H.). June 29, 1920, [Convention date]. Machine guns; ordnance, lubricating. - Consists in lubricating gun bores by forcing oil from a reservoir on the gun by the inertia action produced on recoil. In the form shown, the oil reservoir M<1> has a forwardly directed opening P<1> leading by pipe Q<1>, and non- return disc-valve G to a cup E. The cup has a re-entrant passage F communicating with a channel X<1> in the gun by which the oil passes to a groove Y' situated near the shouldered portion of the cartridge case. In a modification, the disc-valve G is dispensed with.
Patent GB-1510356-A (GB)
Title: Cycloalkene derivatives
Filed: 1975-08-05
Abstract: 1510356 Alkoxy-oximino cycloalkenes and acid addition salts thereof ALLIED CHEMICAL CORP 5 Aug 1975 32727/75 Heading C2C 2 - Alkoxy - 3 - oximinocycloalkenes of the general formula wherein n is an integer of 2-9, and R<SP>1</SP> represents a hydrogen atom or an aliphatic C 1 -C 10  saturated hydrocarbyl radicals and R<SP>2</SP> represents an aliphatic C 1 -C 10  or cycloaliphatic C 5  or C 6  hydrocarbayl radical, and acid addition salts of said 2 - alkoxy - 3 - oximinocycloalkenes, are obtained by (a) reacting a ketone of the general formula with a nitrosating agent, in an inert solvent which is not a Lewis base and which has a dielectric constant of at least 12, e.g. sulfur dioxide, sulfolane, nitromethane or nitrobenzene with an alcohol of formula R<SP>2</SP>OH, and with at least one equivalent proportion of a Lewis acid, e.g. HCl, HBr, chlorosulfonic acid or boron trifluoride etherate, thereby forming the acid addition salt and when the alkene is the desired product by neutralizing the addition salt.
Patent GB-1019087-A (GB)
Title: Information store package for use with a processing unit
IPC: G11B23/03
Filed: 1962-08-27
Abstract: 1,019,087. Information storage units. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 27, 1962 [Oct. 23, 1961; Dec. 11, 1961], No. 32798/62. Heading G5R. An information storage unit comprises a dust cover 13 normally locked to the base 21 of a disc pack 14 but freeable only when the unit is mounted on a processing unit. The dust cover 13 is releasably secured to the disc pack 14 by a locking connection between the cover support hub 53 and the assembly 24 comprising a stud 36 which is received within the bore 54 of the hub and locked there by means of balls 39 held outwards into an annular groove 55 in hub 53 by a grooved locking pin 41. When the disc pack is lowered on to the spindle 15 it is fixed thereto by turning the handle 52 of the cover and hence screwing the sleeve 35 into the bore 65 of the spindle. The presence of release pin 66 causes the pin 41 to be forced upwardly against spring 43 and when the disc pack is finally locked into position the dust cover is freed since the balls 39 move inward and out of engagement with groove 55. To remove the disc pack from the spindle the dust cover is repositioned and aligned by wrench pins 56 and the handle is turned in the opposite direction; this causes retraction of sleeve 35 which effects the locking of the cover to the pack via balls 39 and the disengagement of the combined pack and cover from the processing unit. A simpler embodiment for a cover for a stack of record discs particularly gramophone records for dictation purposes on a turntable which forms the lower member of the cover, is also described (Figs. 5-7, not shown). The cover arrangement may also be used for drum, wire or tape records (not detailed and where the records are magnetic, the cover preferably forms a magnetic screen for them.
Patent GB-1183438-A (GB)
Title: Improvements relating to Smoking
Inventor: CHUN ALLEN HING KONG
IPC: A24D1/00
Filed: 1968-07-10
Abstract: 1,183,438. Cigarette smoke control device; tobacco smoke filters; cigarettes. A. H. K. CHUN. 10 July, 1968, No. 32825/68. Headings A2C and A2M. A smoke control device for a cigarette, for admixing adjustably variable amounts of air into the smoke and for cooling it, comprises a sleeve 3 having at least one hollow rib 4, such that when the sleeve 3 is removably fitted on a cigarette 1 at least one passageway 7 is formed externally of the cigarette 1; the cigarette 1 having a plurality of transverse holes 2 therein. The sleeve 3 comprises an inner metal foil lining 5 and an outer insulating covering 7. A heat conducting arm 8 extends from the lining 5 and carries at its other end a pin 9 for insertion in the ember end of the cigarette 1 to reduce the burning temperature of the cigarette 1. The sleeve 3 is a tight fit on the cigarette 1 and in use is expanded by the smoker by compression in a diametric plane passing through the rib 4 to permit ready movement of the sleeve 3 either longitudinally or rotationally on the cigarette 1 to control the air intake, to retract the sleeve 3 away from the advancing ember, or to extinguish the ember. A second sleeve 3<1>, which may be fitted to the mouthpiece end of the cigarette 1, contains a filter 14 comprising a metallic shell 16 containing non-metallic fibres 18, copper filaments 19, charcoal 20 and a menthol containing disc 23. The shell 16 is provided with perforations 22 in the region of a central air space 21 within the filter 14. An alternative form of filter (24) comprises a mixture of charcoal granules and metallic fibres sandwiched between two non-metallic fibre elements. The cigarette 1 may be provided with holes 11 angled as shown in Fig. 6, each hole 11 containing a wire 12 to act as a heat absorption device for the ember. As shown in Fig. 9,, an otherwise conventional filter tip 28 is provided with transverse holes 29. Similar holes 30, but of smaller diameter, may also be provided in the cigarette 1 in this embodiment.