baber/WOPTO huggingface dataset:
Patent GB-680918-A (GB)
Title: Improvements in or relating to cabinets for television receivers
IPC: H04N5/64
Filed: 1949-12-10
Abstract: 680,918. Television. COLE, Ltd., E. K., and WHITE, J. K. Dec. 8, 1950 [Dec. 10, 1949], No. 31744/49. Class 40 (iii). In a projection-type television receiver, one side wall 2 of the cabinet is movable in drawerlike fashion and has a projection screen 5 hinged to it at the top so that it can be moved into viewing position as shown and hangs behind the wall 2 when the latter is pushed in. To prevent obstruction of the optical path, the top of the cabinet may have a hinged flap 7 or the projection system 6 may be automatically moved forward when the wall 2 is pulled out. The cabinet and the side supports 3 for wall 2 may be mounted on castors.
Patent GB-1120845-A (GB)
Title: Improvements in or relating to castors
IPC: B60B33/02
Filed: 1965-07-26
Abstract: 1,120,845. Castors. M. D. ENGEL and E. W. LLOYD. 26 Oct., 1966 [26 July, 1965] No. 31789/65. Heading A4U. A castor, lockable against rolling action, comprises a fixed shell 12, having a cylindrical axle 28 housing a compression spring 32, and a shell 14 which has a sleeve 22 slidable and rotatable on the axle 28, the spring 32 acting on a pivot ball 34 to bias the shells apart, to an extent limited by a pin 48 in a groove 26, until overcome by load when the rotatable shell 14 moves towards the fixed shell 12 and annular surfaces 16, 18 at the rims of the shells frictionally engage to prevent rotation. The fixed shell 12 has an integral bearing 34 for a vertical swivel axis 38 which is retained by an expanding clip 44 in a socket 40 having an apertured flange 42 for securing to an article of furniture. In modifications the pivot ball is replaced by a cylindrical pivot piece, and the compression spring and pivot piece are replaced by a plunger manually adjusted axially of the axle 28 by a plug in threaded engagement with the axle to lock or release the axle independent of the load. In further modifications the plug has threaded or cam engagement with the plunger, the plunger is positioned inside a compression spring to provide selective or automatic braking, a spring clip holding the sleeve and axle together replaces the pin 48, a flat-attachment plate is provided, or an annulus of friction material is provided between the abutting surfaces of the shells.
Patent GB-1109209-A (GB)
Title: Electrical switching arrangement such as used in an automatic telecommunications exchange
IPC: H04Q3/00
Filed: 1966-07-15
Abstract: 1,109,209. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 15 July, 1966 [21 July, 1965], No. 31896/66. Heading H4K. In a reed-relay switching network in which there is only one possible path between any one inlet and any one outlet, a connection is set up by marking an inlet to the network whereby a low current can flow through free paths to free outlets; selecting one of the latter and then marking it whereby a high current flows through the unique path between it and the marked inlet so as to operate the relays in this path; and thereafter remarking the outlet so that a low holding current passes through the just-operated relays. As described the network inlets are junctors and the network outlets are calling lines. Fig. 1 shows a single matrix whose free outlets A are marked by negative, resistance battery (R1, - 20 V.) and whose busy outlets are marked by positive, resistance battery (+ 30 V.). During route finding an inlet E1 say, is marked by closing its contact e whereby low-current paths via diodes DC, Dk and relay windings I are formed. One of the thereby marked outlets is selected (by means not shown) and its contact a operated so as to apply - 30 V. battery to one of the paths. Consequently a relay such as KP1 comes up in each matrix. A holding path via relay C1, diode DZ and winding II of KP1 to positive battery is then made by closure of contact b. It should be noted that relay KP1 remains up for a time sufficient to allow the change from negative operating battery to positive holding battery. In addition the operation of relay C1 prevents further marking of this particular " row " of the matrix until the call using it is terminated and the holding path released at e and b.
Patent GB-253440-A (GB)
Title: Improvements in the art of and apparatus for cutting metal by electrode disks or thelike
IPC: B23K35/02
Filed: 1925-12-18
Abstract: 253,440. Elektrotrenmaschinen Ges., (Assignees of Neiss, 0.). July 24, 1925, [Convention date]. Heating by electricity.-In cutting metal bv electrode discs or the like rotating at the high speed usual with friction saws, the electric current supplied to the cutting point is generated by induction in the disc. The disc 5 is rotated by a motor 7 between the winding 2 of a unipolar generator which may be excited from the mains 1. The motor driving- connections mav be insulated at 9 and the bearings 8 may be insulated at 10 from an earthed yoke 3 serving as a protective casing for the disc which exercise a fanning action. The current passes from the disc to the work in the form of an electric arc and is conducted from the work by a cable 13 to a brush 11 in contact with a slip ring 12 on the motor spindle. The brush nay be replaced by a second friction disc for effecting parallel cuts. The generator may be self excited by a series or shunt winding or may be provided with a differential compound winding. The speed of a motor for traversing the disc may be made dependent on the supply of current to the motor 7 so that when the supply oi current to the motor 7 increases the speed of the traversing motor is reduced. Specifications 231,767, [Class 83 (iv), Metals, Working], and 243,931 are referred to.
Patent GB-715598-A (GB)
Title: Improvements in and relating to heat exchange tubes
IPC: F28F1/40
Filed: 1952-12-17
Abstract: 715,598. Tubular heat-exchange elements. ESCHER WYSS AKT.-GES. Dec. 17, 1952 [Jan. 5, 1952], No. 32005/52. Class 64(3) A heat-exchange tube, for use in circumstances where heat is transferred at the inner, outer, or both surfaces by forced convection, has a helical corrugated metal strip 2 arranged on the surface of the side or sides on which forced convection takes place, the corrugations extending in the direction of flow and those of adjacent convolutions being circumferentially staggered relatively to each other. In the drawings the strip 2 is wound hedically around a tube 5 to which it may be secured as by seam welding. An external tube 6 is pushed over the strip and the tube 5 may then be subject to a high internal pressure, or a mandrel may be used, to produce good bearing surfaces between the 'strip and the tubes. The corrugations make an angle # to the edge 3 of the strip, this angle being complementary to the pitch angle a of the strip winding. The heat exchange media flow within the tube 5 and between the two tubes. In a modification, Fig. 4 (not shown), the strip is. wound on the inner surface of an outer tube, there being an inner tube arranged like the tube 5 of Fig. 3 but acting merely as a core, the heat-exchange in this case taking place between media flowing on the inside and outside of the outer tube.
Patent GB-810563-A (GB)
Title: Improvements in or relating to a device for effecting circumferential registration adjustments of the printing cylinder of a printing machine
IPC: B41F13/14
Filed: 1955-11-09
Abstract: 810,563. Toothed gearing. KLEINEWEFERS, P., [trading as KLEINEWEFERS SOHNE, J.]. Nov. 9, 1955 [Nov. 30, 1954], No. 32052/55. Class 80 (1). [Also in Group XVI] Mechanism for adjusting the circumferential register of a printing cylinder 2 whilst the machine is running comprises a shaft 5 intermediate the cylinder shaft and the main driving shaft, gear 4, 6 respectively keyed to and freely rotatable on the shaft 5 and meshing respectively with a gear 3 on the cylinder shaft and a driving gear 7, the gear 6 having fixed thereto a gear 9 and the shaft 5 having keyed thereto a gear 10, the two gears 9, 10 having different numbers of teeth and being coupled by a planet gear 11 on a carrier 12, rotatable about the shaft 5; during normal running the carrier 12, gears 4, 6, 9, 10, 11 and shaft 5 remain relatively fixed, and to adjust the register the carrier 12 is driven relatively to the shaft 5 through a clutch arrangement to alter the relative positions of the gears 9, 10 and therefore of the gears 3, 7. Two adjacent gears 13, 14 with differing numbers of teeth are fixed respectively to the carrier 12 and shaft 5 and are always in mesh with gears 21, 20 which, if it is desired to alter the register, are coupled by clutch means 20<SP>1</SP>, 21<SP>1</SP>when the gear 20 is moved axially by a rod 23 connected to a pneumatically or hydraulically-operated diaphragm 32. Two such arrangements are provided for forward or backward movement respectively of the gear 3 relatively to the gear 7 and the control valves for the diaphragms are operated from a control panel by means preventing simultaneous operation of both diaphragms. Manual adjustment of register can be effected by devices 40, 41, 42. Specification 684,277 is referred to.
Patent GB-365651-A (GB)
Title: Process for the manufacture of barium hydroxide
IPC: C01F11/10
Filed: 1930-10-25
Abstract: In a modification of the process of the parent Specification, a solution of barium sulphide is subjected to oxidation by air or gases rich in oxygen in the presence of polysulphides or dissolved sulphur at temperatures not exceeding 50 DEG  C.  Increased pressure may be applied.  In examples, barium trisulphide or the filtrate from a prior operation is added to the solution prior to oxidation with air or oxygen respectively.
Patent GB-825826-A (GB)
Title: Improvements in tools for use in turning one component with respect to another
Inventor: COOPER HARRY CRISTOPHER
IPC: B25B13/50
Filed: 1954-11-05
Abstract: 825,826. Wrenches. A. P. V. CO. Ltd. Dec. 6, 1955 [Nov. 5, 1954], No. 32154/54. Class 61. A wrench comprises a ring composed of two pivoted parts 1, 2 formed with smooth part cylindrical gripping faces and an operating lever pivoted at 6 to the part 2 and having an end surface 9 which co-operates and makes fulcrum engagement with an enlargement 8 on the part 1. The enlarged end 4 of the part 2 is slotted to receive the end of the lever 5 which is secured thereto by the pivot pin 6. The end of the half ring 1 is reduced in thickness to provide a tongue 7 to enter the slot in the half ring 2, the tongue hav. ing formed thereon the enlargement 8. The parts 1 and 2 are flexible to yield and accom. modate themselves to the surface to be gripped. The swinging movement of the part 2 on the pivot 6 is limited by a catch projection 10 on the lever.
Patent GB-657526-A (GB)
Title: A process for the production of oxygen-containing organic compounds
IPC: C07C45/50
Filed: 1948-12-13
Abstract: Oxygen-containing organic compounds are made by reacting olefinic hydrocarbons with a gaseous mixture containing carbon monoxide and hydrogen in the presence of a stationary hydroformylation catalyst, liquid product obtained being recycled in a cooled state to the reaction space, together with catalyst dissolved therein, in order to control the temperature.  Catalysts specified are iron, chromium, molybdenum, tungsten and ruthenium and preferably cobalt on a carrier such as pumice stone.  To make up for catalyst lost in the reaction, catalyst, e.g. cobalt fatty acid or naphthenic acid salts, carbonyls or complex compounds with the olefinic feed, is added to the olefinic feed.  Catalyst recycled is maintained active by holding a temperature of 150-160 DEG  C. in the reaction space, by passing the products with the gas through a zone at less than 150 DEG  C., e.g. 50-130 DEG  C., and by recycling, together with fresh gas, through a zone at 50-130 DEG  C.  Generally a quantity of 2-20 times, preferably 4 to 10 times, the amount of freshly-added olefinic hydrocarbons is used. Recycled product may be injected into the reaction space at different points in varying quantities and according to the particular method chosen the temperature of recycled feed may vary, temperatures of reaction indicated being about 120-180 DEG  C. In an example a mixture, preheated to 100 DEG  C., of water gas (containing 45 per cent by volume of CO and 55 per cent of H2) and a C5-C8 olefine containing fractions from the vapour phase cracking of paraffin wax is fed into the top of a reactor filled with 4 per cent cobalt or pumice, reaction is effected at 200 atmos. and 150 DEG  C., 10 litres of olefine being fed per 5 normal c.cs. of water gas and the beneficial effect on temperature control illustrated by comparing results obtained with and without product recycling.  Specification 647,363 is referred to.
Patent GB-334765-A (GB)
IPC: H03B5/30
Filed: 1929-10-23
Abstract: 334,765. Telefunken Ges. f³r Drahtlose Telegraphie. Nov. 2, 1928, [Convention date]. By varying capacity.-An electric oscillation generator comprises a bar of material, not necessarily having magnetic or piezo-electric properties, coupled to and controlling a thermionic valve which supplies energy at the determined frequency and is back-coupled through electrostatic means to maintain the bar in vibration. Fig. 1 shows a circuit employing a bar 1 of insulating material such as fused quartz. The bar at its centre forms the dielectric of a condenser 2 connected in series with a resistance 4 and a source of e.m.f. 3 and its ends pass loosely through metal rings 6, 7 which are connected respectively to the negative and positive ends of the battery 3, ring 7 being connected through an oscillatory circuit 8. Assuming the bar to be vibrating longitudinally at its natural frequency with a node at the centre, the material of the bar at the centre will be subjected to an oscillatory stress which will produce a corresponding variation of the capacity of the condenser 2. An oscillatory current will flow through the condenser producing an alternating potential on the grid of valve 5. The current which flows in the anode circuit will produce an oscillatory e.m.f. in the circuit 8 which will cause the potential between the rings 6, 7 to oscillate about the steady value of battery 3. The steady biasing voltage produces compression of the bar and the alternating component increases and decreases this compression, thus causing the bar to vibrate. Fig. 2 shows a modified circuit for use with a metal bar. Two plates 10, 11 are arranged facing one end of the bar 1 and form with the bar two condensers in series, so that when the bar vibrates the series capacity is varied and an alternating current flows round circuit 10 - - 13 giving an alternating potential on the grid of valve 5. Across the plates 10, 11, and 16 is imposed the steady potential of the battery 15, and the rod is subjected to tension by the electrostatic attraction, but this tension is increased and decreased by the alternating component of voltage induced in the oscillatory circuit 8 by the coil 9 and rod is thereby maintained in vibration. Valves in cascade may be used to obtain further amplification.
Patent GB-404434-A (GB)
Title: Improvements in reflectors for portable battery lamps
IPC: F21Y101/00
Filed: 1932-11-15
Abstract: 404,434. Reflectors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, HARRISON, W., and KAULA, R. J., Witton Moulded Insulation Works, Witton, Birmingham. Nov. 15, 1932, No. 32291. [Class 75 (ii).] Mounting reflectors on lamp casings.-A reflector 1 for a portable battery lamp or the like is provided with a screw thread by forming on it by stamping a radial flange 4 the edge or outer part at least of which is of helical shape. The flange is preferably formed on the retroverted part 3 of the reflector, and has a gap 5 therein. The reflector is screwed into a moulded cap which fits a battery container of moulded material the bottom of which is permanently closed. The reflector may secure a lens in position.
Patent GB-900130-A (GB)
Title: Film products and the production thereof
IPC: C08J7/052
Filed: 1960-09-20
Abstract: 900,130. Heat-sealable coated films. DU PONT DE NEMOURS & CO., E.I. Sept. 20, 1960 [Oct. 8, 1959], No. 32341/60. Class 140. A heat-sealable film product comprises a non-heat-sealable organic base film having coated thereon a continuous layer deposited from a solution of a reaction product of 1 to 4 mols. of acetyl-acetone with one mol. of an alkyl titanate containing from 2 to 4 carbon atoms in the alkyl group, and super coated thereon, on one side only of the film base, a layer consisting essentially of a polymer of an alpha - olefin. A " non - heat - sealable organic base film " is defined as being any self-supporting organic film which, practically, may not be sealed by conventional heat-sealing apparatus. The film may be of polyethylene terephthalate, copolyesters of ethylene terephthalate and ethylene isophthalate, polystyrene, polyvinyl chloride, polyvinyl fluoride, and regenerated cellulose. The polymer of an alpha-olefin may be a polymer or copolymer of ethylene, copolymers of ethylene, propylene and butylene, and copolymeric mixtures of polypropylene and polybutylene. The film product may consist of a polyethylene terephthalate film, which may be oriented, coated on one surface with a copolymer of vinylidene chloride, acrylonitrile and itaconic acid in the weight ratio 90/10/1 respectively; a continuous coating of the reaction product on both the uncoated and coated surface of the film, and a continuous top coating of polyethylene on the copolymer coated side of the film. The reaction product may be coated on one or both surfaces of the base film, dried to remove the solvent, cure and harden the coating, and thereafter a top coating consisting essentially of a polymer of an alphaolefin superimposed on the coating on one side thereof. Specifications 578,079 and 688,637 are referred to.
Patent GB-485391-A (GB)
Title: Improvements in or relating to trusses for ruptures
IPC: A61F5/24
Filed: 1936-11-26
Abstract: 485,391. Surgical trusses. FOWLER, G. Nov. 26, 1936, No. 32352. [Class 81 (ii)] A truss consists of a pad, a belt and an understrap, the end of the understrap which is attached to the front face of the pad being formed of or reinforced bv a strip of springy material such as spring steel engaging an outward projection on the front face of the pad beneath the point of connection of the understrap, the point of connection or the projection or both being adjustable relative to the pad in an approximately upward and downward direction. As shown, the pad, which is provided with a reinforcing rim 5, is formed at the front with a leather-covered metal plate 7 having a slot 8 formed therein. A margin plate 9 surrounding the slot is provided. A trough element 11 secured to the rear of plate 7 receives a slidable block 12 into which are screwed a screw 13 securing the understrap and a screw 15 securing the projection consisting of a cylinder 16 having an axial bore to receive the ends of a " D " link 17 which embraces the understrap. The end of the understrap, which may be formed of leather is pocketed to receive the spring steel reinforcement 18. The screw 13 in addition to securing the understrap to the block 12 locks the latter in the element 11.
Patent GB-324728-A (GB)
Title: Improvements in or relating to impulse sending arrangements for use in telephone systems or the like
IPC: H04Q1/38
Filed: 1928-11-06
Abstract: 324,728. Automatic Telephone Manufacturing Co., Ltd., and Smith, S. R. Nov. 6, 1928. Automatic exchange systems.-The usual cam driven interrupters are replaced by polarized relays 7 supplied with alternating current from either or both of two generators 1, 2 in series with a potentiometer 12 for varying the relative duration of the positive and negative half waves and consequently the make-to-break ratio. Disconnecting switches 10 enable a faulty section to be cut out without affecting the rest of the circuit. The generator 1 may be driven by a motor 3 operated from the exchange battery and may be cut in automatically on failure of the town supply which feeds the other motor 4. Specifications 254,798, and 324,059. [Class 38 (v), Electric switches &c., are referred to.
Patent GB-799270-A (GB)
Title: Production of intermediates for the synthesis of reserpine and allied compounds
IPC: C07D401/06
Filed: 1957-05-03
Abstract: The invention comprises compounds of the formula: <FORM:0799270/IV (b)/1> where R is methyl and R1 is H or an acyl group derived from a C1-C5 alkanoic acid or an aromatic acid.  These are made from the lactone: <FORM:0799270/IV (b)/2> (see Specification 799,269) by treatment with N-bromosuccinimide to add HO and Br across the double bond, oxidation of the hydroxyl group to ketone with chromic acid and reduction of the latter with zinc and acetic acid; there is thus prepared the compound of the first formula (R = R1 = H) which is then alkylated (e.g. with diazomethane) and acylated (e.g. with acetic anhydride). Examples are given of the various steps.  The acyl group R1 may also be propionyl or other aliphatic group having less than 6 carbon atoms, or aroyl such as benzoyl or 3 : 4 : 5-trimethoxybenzoyl.  The products are intermediates in the synthesis of reserpine and its analogues, the subsequent stages being described in Specifications 799,271 and 799,272.
Patent GB-1525011-A (GB)
Title: Aminoalkanol esters of vincaminic acid and related acids
IPC: C07D461/00
Filed: 1975-08-05
Abstract: 1525011 Process for preparing vincaminic acid basic esters LABORATORIOS FUNK SA 5 Aug 1975 [7 Aug 1974] 32708/75 Heading C2C [Also in Division A5] The process comprises a process for producing a compound of the Formula IVa or IVb in which R 1  is alkyl, R 2  is hydroxy, R 3  and R 4  are methyl or ethyl, n is an integer from 2 to 6 inclusive and a, b and c are 0, 1 or 2, and acid addition salts thereof, in which a compound of the Formula I in the form of a heavy metal salt, the metal having an atomic number between 42 and 83 both inclusive, is reacted with a compound of the Formula II or III Vincaminic acid is prepared by hydrolysis of vincamine. The sodium salt is prepared from the free acid. 2-Dimethylamino ethyl chloride is prepared by reacting its hydrochloride salt with excess base.
Patent GB-182397-A (GB)
Title: Improvements in or relating to apparatus for economising steam on locomotives and other traction engines
IPC: F01B25/00
Filed: 1921-03-23
Abstract: 182,397. Roberts, R. C. March 23, 1921. Actuating-mechanism.-The steam-economizing valves as described in Specification 182,176 are positively operated by means of screw or rack gear and a bell-crank lever. The ports 2, 3, Fig. 1, are connected to the supply and to the working cylinder respectively, of a locomotive or traction engine, and the flow of steam is controlled by a mitro valve 6. The valve-rod 7 is secured to a block 10 having a slot 11 to receive a roller 12 carried by a bell-crank lever 13. The other end of the bell-crank lever is connected by a link 17 to a rod 16 which is actuated by a screw 22 of coarse pitch. In a modification, Fig. 2, the slide and roller 11, 12 are. replaced by a link 13<a> and the screw and nut 22, 23 by a worm and rack 26, 25.
Patent GB-604840-A (GB)
Title: Improvements relating to intermittently operating magneto-electric motors
IPC: H02K37/12
Filed: 1945-12-05
Abstract: 604,840. Alternating current motors. GENT & CO., Ltd., and CHAPMAN, E. O. Dec. 5, 1945, No. 32936. [Class 35] In a step-by-step impulse operated motor the rotor has a pair of pole plates 11, 12 axially separated by a disc magnet 20 which gives them opposite polarities, the poles on the plates being mutually staggered to co-operate with stator poles 24, 25 which are magnetized with alternate polarities. As shown, the rotor elements 11, 12 are fixed mutually at right angles and the stator poles 24, 25 extend from either end of the solenoid 13 and so acquire opposite polarities when current impulses are received.