baber/WOPTO huggingface dataset:
Patent GB-673959-A (GB)
Title: Improvements in or relating to heating apparatus, fireplaces and the like
IPC: F24B1/189
Filed: 1949-03-30
Abstract: 673,959. Air supply for combustion. LOWCOCK, F. March 10, 1950 [March 30, 1949; July 5, 1949; Nov. 16, 1949], Nos. 8565/49, 17679/49 and 29293/49. Class 126 Means for connecting an open fireplace with an air space external to the space in which the fireplace is fitted comprises a hollow fret located at the front lower part of the fireplace a duct connecting the external air space with the fret and at least one duct extending upwardly from the fret to open into the chimney or flue. Air from a space beneath the floor passes up ducts 52 formed in the side cheeks of the fireplace and is introduced into the chimney through openings 53 in the top of the ducts 52. Air reaches the ducts 52 by passage through ducts 49, 50 connecting the space beneath the floor with each side of a hollow fret 41 arranged before the fire. Air passes beneath horizontal baffles 46, 47 to the centre of the fret 41 and then above the baffles 46 to the lower part of the vertical ducts 52. Air for combustion may be drawn into the fire from the interior of the fret 41 through an opening 58 controlled by a valve 54 actuated by a handle outside the fret 41.
Patent GB-165208-A (GB)
Title: Improved method of and apparatus for separating and/or concentrating materials
IPC: B03B5/26
Filed: 1920-03-23
Abstract: 165,208. Cloke, J. G. March 23, 1920. Inclined-trough wet-separating apparatus.- Ores and other materials are separated by causing a pulp to flow over a launder or series of launders of V or like shape in section forming a bed of the heavy material on the bottom of the launder, intercepting any desired proportion of the heavy materials which flow over the bed, and allowing the light materials to pass away with the stream, Means may be provided for varying the angle of repose of the bed by providing linings for the launders or means for adjusting their inclination. In the plant shown, pulp is fed from a distributor j to a number of parallel launders a forming the first set of a, series of five rows. The heavy material passing out of the launders a is intercepted by an adjustable baffle g, while the light material after striking a baffle f<1> passes over to the next set of launders a<1> and so on. The concentrates collected in the troughs l pass to a launder n and thence to further sets of launders b. The tailings are passed to launders p, q. Means may be provided for collecting concentrates from any of the sets of launders a and passing them direct tothe sets b &c.
Patent GB-361776-A (GB)
Title: Improvements in mercury vapour rectifiers
IPC: H01J13/26
Filed: 1931-03-20
Abstract: 361,776. Mercury-vapour rectifiers. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. March 20, 1931, No. 8599. Convention date, March 26, 1930. [Class 39 (i).] A removable anode bushing comprises pressure - applying means, such as a flexible tube e, for sealing the joint between the anode a and the edge l of the bushing insulator and also for sealing the dead vacuum space k which exists between the anode stem h and the insulator. As shown, the tube e encloses the dead space k and is welded to a member d, screwed on the anode stem, and to a ring f which rests with interposed packing g on the insulator. A spring m is provided between the ring f and a nut i which is screwed on the member d and is used to adjust the sealing pressure.
Patent GB-241457-A (GB)
Title: Improved means for guarding against stoppage by freezing or distortion of the outlets for gas under pressure
IPC: F17C13/12
Filed: 1925-03-31
Abstract: 241,457. Zack, M. March 31, 1925. Temperature, regulating. - The discharge passage or nozzle of a compressed gas container is guarded from distortion or choking due to freezing caused by the gas expansion, by constructing the passage so that the relatively warm compressed gas flows around it. Gas from the passage a flows through an annulus b around a tubular member c to the discharge passage which is formed in a tubular piece d formed with a nozzle f and provided with a hard rubber or vulcanite stopper e by which it is throttled down to the working pressure. The, apparatus is in two parts screwed together.
Patent GB-392329-A (GB)
Title: Improvements in and relating to small arms
IPC: F41C27/06
Filed: 1932-03-23
Abstract: 392,329. Discharging grenades from rifles. BLACKER, L. V. S., 33, Rutland Gate, London. March 23, 1932, No. 8620. [Classes 9 (i) and 119.] Relates to devices comprising a socket or like cup associated with the muzzle of a rifle and adapted to hold a grenade which is discharged therefrom when a cartridge is fired in the rifle. According to the invention, a slidable member is associated with the grenade or the container and is acted upon directly by the gases from the rifle to ignite a propellent cartridge in the grenade ; or a slidable member is provided in the container and to it is attached or connected a member acted upon by the gases of the rifle to cause the slidable member to fire the propellent charge of the grenade. As shown in Fig. 1, the socket a is interlocked with the bayonet stand c of the rifle and has a tail-piece d fastened by a screw to a lug e on the rifle. A "false muzzle" integral with the socket a forms a prolongation of the rifle barrel ; and the rifle gases are byepassed through a port g to operate a sliding striker h in the socket for firing a propellent charge in the base of the grenade l. In a modification, the striker is constituted by the propellent cartridge itself situated in the grenade. In another modification, Fig. 3, the striker h is connected to a baffle-plate p deflected by the gases of the rifle. And in another modification the striker is operated by the forward movement of a " false muzzle " which may be limited by stops.
Patent GB-654622-A (GB)
Title: Enclosure air conditioning mechanism
IPC: B64D13/08
Filed: 1946-03-21
Abstract: 654,622. Gas turbine plant. GARRETT CORPORATION. March 21, 1946, No. 8744. Convention date, March 16, 1945. [Class 110(iii)] [Also in Groups X, XIII and XXXIII] Air to be supplied under pressure to an enclosure, e.g. an aircraft cabin 13, after being compressed in a compressor 17, is cooled first in a heat exchanger 22 having passages 27 for the air to be cooled and interspaces 28<SP>1</SP> for coolant air which partly .comprises cooled air recirculated from the heat exchanger 22, and is cooled further by driving a turbine 39 on the downstream .side of the heat exchanger. In the form shown, the turbine 39 drives a fan 41 which aids or causes the flow of the coolant air. Part of the cooled air is diverted from the outlet pipe 26 through a passage 44, passes over a part of the heat exchange tubes 27 separated by a partition 45 from the part cooled by the main coolant air, and either joins the latter as shown or is discharged separately to the atmosphere. In another form, the cooled air diverted from the outlet pipe 26 is mixed with the main coolant air as it enters the heat exchanger. The heat exchanger 22 receives the compressed air through the pipe 23 from the compressor 17, which forms part of a jet propulsion unit, and the coolant air flows through the heat exchanger from one air passage 14 to another both supplying the compressor. Specifications 604,301, 654,676 and 654,678, [all in Group XIII], are referred to. The Specification as open to inspection under Sect. 91 comprises also the subjectmatter of Specifications 654,676 and 654,678, [both in Group XIII]. This subject-matter does not appear in the Specification as accepted.
Patent GB-1009589-A (GB)
Title: Improvements relating to non-linear electrical circuits
Inventor: CACHIA SAVIOUR LAWRENCE
IPC: H04N5/202
Filed: 1961-03-10
Abstract: 1,009,589. Analogue calculating circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 9, 1962 [March 10, 1961], No. 8758/61. Heading G4G. A non-linear circuit comprises the series combination of an emitter resistor 3, the emitter-collector path of a transistor and a collector resistor 1, the signal being applied at 4, 5 across the series combination and also to the base of the transistor so that the output (e.g. at 6, 7) across a portion of the series combination is a non-linear function of the input. The circuit shown, which produces a fractional power law due to exponential operation of the transistor, is intended for use as a gamma corrector in a television system, the amount of correction depending on the tapping on the potentiometer 9.
Patent GB-516339-A (GB)
Title: Method of and apparatus for grinding waste materials containing animal and/or vegetable matter
IPC: B02C17/06
Filed: 1938-03-23
Abstract: 516,339. Ball mills. PETERSEN, K. March 23, 1938, No. 8960. [Class 59] A method of grinding refuse in a rotating or oscillating screened drum, the material insufficiently ground to pass through the screen is transferred to an elevating device revolving with the drum which is adapted to return or advance the material for further treatment or to discharge the material from the drum. As shown in Figs. 1, 2 the drum comprises end plates 1, 3 connected by longitudinal bars 43 the periphery of the drum being formed by angularly bent grid bars 45 connected to the bars 43. The drum is separated into compartments by lifting chambers 39, 41 which may have central plates 61, 69 rotatable on a shaft 65 adapted to be turned through 180‹ when it is desired to return the material back into the compartment. Conical sieves 71 surround each compartment and the material left on each sieve is discharged through orifices 49 into the adjoining lifting chamber. Material is fed by a scoop 27 into a hopper 21 and the material passing through the sieves is discharged by lifting vanes to a conveyer. In a modification a discharge cone 57, Fig. 1, in the lifting chamber may be pivoted on a radial bar operative from the periphery of the drum so as to return the material to the grinding compartment. In Figs. 5, 6 the sieve 171 returns material thereon into a lifting drum 27 which discharges the material into a hopper 93, Fig. 6, adjoining the main hopper 121, the latter being provided with a removable cover 89. The lifting chamber may be arranged at the opposite end of the drum, the sieve being inclined in the reverse direction to that shown in Fig. 5. Specification 492,213 is referred to.
Patent GB-290958-A (GB)
IPC: B25D17/08
Filed: 1928-03-24
Abstract: 290,958. Ingersoll-Rand Co. June 16, 1927, [Convention date]. Percussive tools.- A tool-retaining device comprises a yoke Q pivoted on a pin W which is supported by a spring Z from a lug U on the front head. Seating surfaces T formed on the lug are adapted to conform to the curved end faces S of the arms of the yoke. In a modified form the pin W is carried by a sleeve which is supported by a spring resting on the upper side of the lug U.
Patent GB-433163-A (GB)
Title: An improved gas heated soldering bit
IPC: B23K3/02
Filed: 1934-03-22
Abstract: 433,163. Gas-heated soldering-irons. WISE, W. W., 7, St. Albans Road, Moseley, Birmingham. March 22, 1934, No. 8987. [Class 83 (iv)] [See also Group XI] A gas-heated soldering- iron comprises a bit and a burner attached together by a separate connector consisting of a series of fins or like for cooling purposes. A connector d of malleable iron or steel and consisting of a series of rings with staggered connecting webs e, e<1> is used to connect the burner section h to the bit a. It may consist of a number longitudinal sections. The bit is hollow and provided with a number of tangential vent holes or slots c. The burner portion h contains the burner tube q supported in a heat insulating sleeve r, and also the needle valve j and jet sleeve m. The needle valve is screwed to engage the jet and has a central bore k terminating in an opening l and a wedge-shaped end to provide a variable jet opening. Alternatively the needle may be grooved or coned. The jet is knurled so that it may be rotated by the fingers passing through slots in the casing h. The lower end of the jet sleeve is enlarged and co-operates with projections on the casing h to form a variable air opening p. The casing h also carries a metal or other handle S through which passes the gas supply tube t from a rotatably mounted nipple v.
Patent GB-115531-A (GB)
Title: Improvements in Lifting-jacks.
Inventor: ROBINS WALTER
IPC: B66F15/00
Filed: 1917-06-25
Abstract: 115,531. Robins, W. June 25, 1917. Jacks.-The load is lifted by a hcok f<11> connected to, or by the spike b<1> formed on, the end of a lever d which is pivoted in a rack bar b slidably mounted in a pillar a. The teeth of the rack are engaged by a detent g<11> pivoted in the top of the pillar which can be withdrawn by pulling the cord j. One side of the pillar is formed with teeth i which are engaged by a cross-bar connecting the lower ends of the bars c. The upper ends of the bars care pivotally connected to the lever d. In operation, the long arm of the lever d is depressed so raising the load and causing the cross-bar to engage a higher tooth i. The detent g<11> is now withdrawn and the lever raised. This movement raises the rack bar b and it is retained in its raised position by the detent g<11>. If the lever is now depressed the load is raised still higher.
Patent GB-1027984-A (GB)
Title: Method of preparation of vinylethyl sulphone
Inventor: SHARF VLADIMIR ZINOVJEVICH
IPC: C07C315/04
Filed: 1964-03-04
Abstract: Vinyl ethyl sulphone is obtained by the continuous catalytic dehydration of 2-hydroxydiethyl sulphone using tribasic calcium phosphate as a catalyst.  It is desirable to use water as a diluent for the 2-hydroxydiethyl sulphone at a volume ratio of the order of 1: 1.  The reaction conditions are suitably 300-450 DEG  C., atmospheric pressure and a volume flow rate of up to 2.4 ml. hour-1. The catalyst, tribasic calcium phosphate may be used in the form of 2 to 3 mm. granules dried at 100-110 DEG  C. and calcined for two hours at 400-450 DEG  C.
Patent GB-554888-A (GB)
Title: Improvements in and relating to clogs
IPC: A43B13/12
Filed: 1942-07-02
Abstract: 554,888. Clogs. BARKER, A. E. A. July 2, 1942, No. 9141. [Class 17 (ii)] In a clog, the margin of the upper 1 is secured to an insole 2 and welt 3, and the welt is then turned down and secured to the edge of the wooden sole 4 by rivets 6, the edge preferably being recessed. Filling material 7 is provided and treads of rubber 8 may be secured to the sole and heel.
Patent GB-528380-A (GB)
Title: Improvements in and relating to electric converting apparatus
IPC: H02M7/15
Filed: 1939-03-23
Abstract: 528,380. Converting. BRITISH THOMSONHOUSTON CO., Ltd. March 23, 1939, No. 9184. Convention date, March 23, 1938. [Class 38 (ii)] The grid potentials for a discharge-device 4 employed as a rectifier are supplied from a transformer 16 and regulation is effected by varying a D.C. bias supplied by a generator 12 having two opposed fields 13, 14, one of which is constant and the other is regulatable. The winding 14 is supplied from a generator 22 through the resistance 33 of a rheostatic regulator 29 and a switch 38 is provided to enable the regulator winding 32 to be connected either to a current transformer 35 through a rectifier 37 to give regulation in dependence on the current in the supply, or from across a shunt 35<SP>1</SP> in the D.C. circuit to give regulation to constancy of the load current, or across the D.C. circuit voltage. The D.C. circuit is closed by means of two electromagnetic switches 44, 45 the closure of the first 44, effected by means of a switch 54, initiating closure of the second 45 which operates with a time delay. Closure of the first completes the circuit of a relay 40 which short circuits the resistance 33 of the regulator and thus causes a negative bias to be applied to the discharge device 4 to restrict the current during starting. This relay 40 opens with a time delay when the switch 45 closes. Specification 397,154 is referred to.
Patent GB-576861-A (GB)
Title: Improvements in or relating to electro-magnetic relays
IPC: H01H29/16
Filed: 1944-05-15
Abstract: 576,861. Electromagnetic relays. ELECTRO METHODS, Ltd., and SCHUSTER, H. L. May 15, 1944, No. 9233. [Class 38 (v)] A member 2 of magnetic material is pivoted at its centre 6 to a fixed member 1 also of magnetic material and is repelled from it when the energization of a coil 27 causes both members to be magnetized with similar polarity. In the form shown the member 2 carries a contact 22 adapted to dip into mercury 25. Gravity returns the member 2 and a spring 23 conducts current to it from a terminal 4. Specification 525,779 is referred to.
Patent GB-963619-A (GB)
Title: Improvements in or relating to signal storing cathode ray tube arrangements
Inventor: PLAISTOWE DONALD LEOPOLD
IPC: H04N7/01
Filed: 1962-03-12
Abstract: 963,619. Cathode-ray tubes. MARCONI CO. Ltd. Dec. 14, 1962 [March 12, 1962], No. 9331/62. Heading H1D. [Also in Division H4] A Xenon-filled cold discharge lamp 10 is arranged around the outside of the envelope 1 of a scan conversion tube so that when the lamp is energized ultra-violet light therefrom irradiates the tube target 4 to expunge the signals stored thereon. To facilitate uniform irradiation of the target 4, the collector electrode 6 consists of a transparent quartz cylinder with an internal deposit of transparent conductive stannous oxide. The target 4 is shielded from other light and heat sources by a cylinder 9 of black glass mounted between the envelope 1 and the lamp 10. The target 4 is of conventional construction with the usual back plate and the tube also includes a writing gun 2 and a reading gun 3 which, under the influence of a coil deflection system 7 and an electrostatic deflection system 8, respectively scan the target 4 in a polar co-ordinate raster and a television type line raster. Normally a set of ganged switches S1 . . . S6 operate in their dotted-line positions, signals being applied at terminal 11 and taken off at terminal 12. Moving switches S1 . . . S6 to their full-like positions switches off the gun 2, earths the back plate of the target 4, the collector 6 and an " anti-blotch " ring electrode 5, energizes the lamp 10 from mains supply terminals 13 through a high voltage unit 15, and switches off the reading beam by changing the potential applied to the gun 3. The lamp 10 may be replaced by a mercury vapour lamp with a black glass envelope. The application of the invention to a storage vidicon camera tube is also mentioned.
Patent GB-496810-A (GB)
Title: Improvements in or relating to mechanical and electrical connecting means for lighting fittings
IPC: F21V17/00
Filed: 1937-04-02
Abstract: 496,810. Two-part couplings. STUDHOLME, J., and BENJAMIN ELECTRIC, Ltd. April 2, 1937, No. 9393. [Class 38 (i)] [Also in Group XI] In an electric - light fitting in which an electric-lamp holder 19 and a shade or reflector 18 are adapted to be electrically and mechanically detached as a unit from a support 10, the detachable part is carried by a cup-shaped member 14 secured by a flanged screen ring 16 to the support, bayonet grooves 13 in the support co-operating with projections 15 on the cup to retain the parts against free separation. A depending wall 10<1> of the support 10 engages a seating 17 to provide a gas-tight joint, the reflector 18 being secured by screws 21 with an interposed washer 22 to an insulating member 20 carrying the lamp-holder 19. The member 20 carries contacts 23 which engage contacts in an insulating member 24 secured in the support by a projection 25 engaging in a depression and a grub screw 26. The bayonet grooves and projections are preferably made of unequal size so that the parts can only be attached one way.
Patent GB-488446-A (GB)
Title: Improvements in fuse elements for electric fuses
IPC: H01H85/06
Filed: 1937-04-02
Abstract: 488,446. Fusible cut-outs. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and HOBAN, H. C. April 2, 1937, No. 9416. Drawings to Specification. [Class 38 (i)] A fuse element consists of a copper strip or wire to which an adherent coating of aluminium is applied by spraying. No subsequent heat treatment is employed to form an alloy of the copper and aluminium.
Patent GB-1299452-A (GB)
Title: Improvements in or relating to methods of machining
Inventor: BEARDMORE GEOFFREY
IPC: H01J37/34
Filed: 1969-02-21
Abstract: 1299452 Making gas lubricated bearings; removing by sputter etching SMITHS INDUSTRIES Ltd 13 Feb 1970 [21 Feb 1969] 9456/69 Headings B3A and B3V [Also in Divisions C7 and F2] A workpiece 1 is machined by repeatedly reversing a process of sputtering such that removal of material is alternated with deposition of material. In one embodiment, spiral grooves 5 are formed in a thrust plate 1 of an aerodynamic gas lubricated bearing for a gyroscope rotor, which plate 1 is adapted to co-operate with another plate (2), (Fig. 1, not shown), having a plain surface (4). One plate may be of sintered boron carbide and the other of sintered silicon carbide. Two hundred plate blanks 1 having masks thereon are positioned in recesses 18, of jigs 17 within an enclosure 14. The enclosure 14 is filled with argon at low pressure and a voltage is applied between an anode 11 and cathode 12. An alternating current is applied to six windings 25 mounted on an aluminium frame 21 surrounding the enclosure 14 and comprising rods 24 interconnecting hexagonal end pieces 22, 23 to produce a magnetic field acting normally to and rotating about the electron beam axis 13. A direct current is supplied to electromagnets 19, 20 and a voltage applied to render the blanks 1 in the jigs 17 negative with respect to the cathode 12 so that sputter etching of the exposed areas of the blanks occurs. When the required groove depth has been obtained, the voltage between the blanks and cathode 12 is cyclically reversed so that material is alternately removed from and deposited in the grooves to improve the surface finish. A spindle of a bearing connecting two grooved thrust plates 1 and extending within a bore in the rotor may be formed with grooves in a herring bone pattern by rotating the spindle during sputtering. The rotor may be of tungsten carbide. The flat bearing surfaces (3, 4) of the plates 1, (2) may be formed by the method. Instead of using a mask, the ion beam may have a significant intensity only where material is to be removed.
Patent GB-785749-A (GB)
Title: Electric time-piece actuated by a battery
IPC: G04F5/10
Filed: 1956-03-27
Abstract: 785,749. Clocks and watches. OMEGA, L., BRANDT & FRERE SOC. ANON. March 27, 1956 '[April 2, 1955], No. 9464/56. Class 139 [Also in Groups XXXVI and XL(c)] A timepiece has an oscillating circuit formed by a transistor 1, Fig. 1, the emitter of which is connected to a battery 2 and the collector circuit of which includes a delay circuit 3 the output of which is fed back over a condenser 5 to the base of the transistor. The output of the delay circuit 3 is also connected via a resistor 6 to a synchronous or pulse motor 4 which drives the hands. In a second example Fig. '2 the feed-back from the collector to the base of the transistor is by transformer coupling. In a third example, Fig. 3, the oscillation is seltstarting, the oscillator being a blocking oscillator which is synchronized by the pulses passing through the delay circuit. More than one amplifying stage may be provided and a vacuum tube or magnetic amplifier may be used. The delay circuit 3 may be formed by an inductor, capacitor network, a semi-conductor filament, - e.g. germanium or silicon or a series of such filaments arranged to provide a time delay appropriate to the desired oscillation frequency.