baber/WOPTO huggingface dataset:
Patent GB-765565-A (GB)
Title: Improvements in or relating to vaporization apparatus
Inventor: BREYER FRANK GOTTLOB
IPC: C22B19/04
Filed: 1953-12-11
Abstract: 765,565. Refining metals. INDUSTRIAL & FINANCIAL ASSOCIATION, Inc. Dec. 11, 1953, No. 34504/53. Class 82(1) [Also in Groups III and XII] Vaporization apparatus for purifying molten metals or other heavy or corrosive liquids, and especially for purifying zinc, comprises a columnar chamber. built up from refractory elements with shallow basins at their upper faces and integral transverse blocks at their ends stacked together to form two opposite chamber walls, the elements being parallel and arranged in tiers with the elements of adjacent tiers overlapping so that liquid fed to the basins will overflow from tier to tier, liquid from a basin in one tier falling into two basins of the next lower tier so as to effect a number of zig-zag passages in the chamber. As shown in section in Fig. 2 and in partial section to an enlarged scale in Fig. 4, a column 10 provided with a head 12 supplied with molten zinc at 20 and a sump 14 from which purified zinc is runoff has side walls 32 and 33 with yieldable means in the form of springs 75 allowing for expansion, and end walls built up from the rectangular ends of elements 35, 36, 37 and 38 extending along the column, the elements 35 and 36 having passages 35a and 36a for heating gases passed therethrough across the column. Cadmium vapour and other impurities more volatile than zinc flow upwards and leave the apparatus at 22a.
Patent GB-936543-A (GB)
Title: Compressed air valve for air blast electric breakers
IPC: F16K31/363
Filed: 1961-09-27
Abstract: 936,543. Air-blast switches. ALLMANNA SVENSKA ELEKRISKA A.B. Sept. 27, 1961 [Oct. 4, 1960], No. 34604/61. Class 38 (5). An air-blast valve which admits air from supply channels 9, 10 to a channel 11 when the valve 4, 5 is opened has a differential piston 2 secured to the valve head 4. The chamber 13 above the larger upper surface of the piston 2 can be connected to a high pressure air source through a channel 12 and the chamber 16 below the smaller surface of the piston 2 is connected by a passage 17 to an air discharge channel 14 through the centre of the rod 3 of the piston 2 and thus to air outlet channels 15. When the valve 4, 5 is closed, the chamber 16 is at atmospheric pressure and application of high pressure air to the chamber 13 will move the piston quickly downward to open the valve 4, 5 against the bias of a spring 8, but after a collar 18 at the end of the channel seals on a flexible plate 19 the pressure gas from channels 9, 10 will pass into the chamber 16 at a rate dependent on the size of the passage 2. When the chamber 13 is connected to the atmosphere the valve is closed quickly by the spring 8 and the pressure on the underside of the piston. The arrangement may be operated as a one-way valve if the lower end of the passage 14 is permanently sealed.
Patent GB-1498838-A (GB)
Title: Self-sizing fastener assembly
IPC: F16B19/08
Filed: 1975-08-20
Abstract: 1498838 Rivets HUCK MFG CO 20 Aug 1975 [22 Aug 1974] 34660/75 Heading F2H A pin and swaged-on collar type fastener for securing together sheet members 28, 30 comprises a pin 10 with a head 12 and a shank including a plain cylindrical portion 14, a grooved portion 16 on to which the collar 24 can be swaged, a break-neck 18, a bore-sizing portion 20 and/or 200, and a pull portion 22 to be gripped by the jaws of a setting tool (not shown), the bore 21 through the sheets 28, 30 having a smaller diameter than the plain portion 14 of the shank, and the bore-sizing portion 20 and/or 200 having a diameter relative to the plain portion 14 such that when the boresizing portion is drawn through the bore 21 it enlarges the bore to a size to receive the plain portion 14 with a predetermined interference fit, the collar 24 having a bore such that the bore-sizing portion also sizes the collar, and the respective expansions of the workpiece bore 21 and the collar being accomplished in a single drive operation by the setting tool pulling on the pull portion 22, and the collar being finally secured to the grooved portion 16 on completion of the drive operation. This produces a fatigueresistant joint. The portion 200 is a circumferential bulge to plastically deform the bore 21 wall. The portion 20 comprises a series of circumferential broaching teeth. The grooved portion 16 may comprise circumferential grooves or screw threads. In Fig. 4, the bore 21 is lined by a sleeve 400 which is sized by the portion 200, the collar 24 having a recess 25 to receive the end of the sleeve. In Fig. 5, a split sleeve 502 is carried on a plain shank portion 500 between the broaching postion 20 and the sizing portion 200, the sleeve forming a liner for a countersunk bore through the sheets 28, 30.
Patent GB-1082600-A (GB)
Title: Improvements to float controlled cistern supply valves
IPC: E03B11/02
Filed: 1966-08-03
Abstract: 1,082,600. Valves. J. O. W. HARRIS. Aug. 3, 1966, No. 34747/66. Heading F2V. A float-controlled cistern supply valve comprises a valve closure member having two elements of which a first spherical or disc element 10 co-operates with a seat 13 to close the valve and a second element 11 of a diameter which is smaller than cylindrical portion 14 of the seat acts to throttle the flow prior to closure of the valve. The valve closure is carried by a plunger 15 and actuated by a float on an arm 19. The float may be partially filled with liquid to provide a loading on the valve.
Patent GB-798266-A (GB)
Title: Improvements in or relating to circuits for deriving a sum voltage and a difference voltage from two imput voltages
IPC: H03L7/08
Filed: 1955-12-05
Abstract: 798,266. Automatic phase control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 5, 1955 [Dec. 8, 1954], No. 34791/55. Class 38 (4). [Also in Group XL (c)] A synchronizing or other reference voltage is applied to a control grid of a phase splitting valve 2 and a variable voltage applied to the cathode so that the sum and difference of the two voltages is derived across anode and cathode resistors R4, R2 and the difference between the rectified sum and difference voltages, developed across an integrating circuit 28-30 at the output of two oppositely poled rectifiers 24, 25, measures the relative phase variation of the two voltages. This may be used to stabilise the phase of a sawtooth generator 14, e.g. the line timebase generator of a television receiver, whose line deflection flyback pulse 11 is differentiated by a capacitor 12 to form a cosine shaped variable voltage applied to the phase splitting valve 2.. The synchronizing voltage may be derived from a television video waveform applied to a synchronizing. separator valve 1 whose H.T. voltage is derived from a cathode resistor R2 of the valve 2.
Patent GB-1087627-A (GB)
Title: A dynamic compression testing circuit for an internal combustion engine
Inventor: MAZURKEVICS ANATOLIJS
IPC: G01M15/04
Filed: 1966-08-03
Abstract: 1,087,627. Ignition systems. ALLEN ELECTRIC & EQUIPMENT CO. Aug. 3, 1966, No.34857/66. Heading F1B A dynamic compression testing circuit for an electrically ignited multi-cylinder internalcombustion engine having an ignition system including an ignition coil 76 having a relatively low primary voltage drop, includes a trigger device 23 having anode means, cathode means and control electrode means and further includes a circuit adapted to respond to ignition pulses applied to one cylinder of the engine to provide a signal on the control electrode and still further includes transformer means 12 connected between the cathode means and anode means on one side thereof and adapted to be connected across the coil primary winding 74 on the other side thereof so that the voltage drop across the coil primary winding is sufficiently increased by the transformer means as to allow conduction of the trigger device. As shown the system includes thyratrons 21, 22 and 23 and high vacuum triodes 26 and 27. The test circuit output terminals 62 and 63 would be connected across the coil primary whereby the voltage drop placed thereacross by the collapse of the coil field would supply suitable anode potentia for the thyratron 23. In the case of transistorized and other low primary voltage ignition systems the output of the coil primary 74 if fed directly to the output terminals 62 and 63 would not provide sufficient anode potential to allow conduction of the thyratron 23. However the transformer 91 steps up the voltage drop across the coil primary 74 and so applies an increased voltage to the terminals 62 and 63 which is sufficient to allow conduction of the thyratron 23. The thyratron thereupon conducts and thereby shorts the terminals 62 and 63 to produce a zero impedance across the secondary winding 93. The transformer 91 simultaneously produces a zero impedance across the primary 92 thereof which in turn is applied to the coil primary 74 to short the same. Therefore no voltage drop is produced across the secondary 78 and the test plug 81 is not fired. Since the ignition coil 76 is now de-energized it can no longer furnish anode potential to the thyratron 23 through the transformer 91 and the thyratron 23 is shut off. Trigger means other than the thyratron 23, such as for example, a semi-conductor controlled rectifier, may be used.
Patent GB-416064-A (GB)
Title: Improvements in friction drop stamps
IPC: B21J7/36
Filed: 1932-12-09
Abstract: 416,064. Friction-drop presses. MASSEY, Ltd., B. & S., and MASSEY, H. F., William Street, Openshaw, and STAPPLETON, A., 139, Wheeler Street, Higher Openshaw, both in Manchester. Dec. 9, 1932, No. 34911. [Class 83 (iv).] In an air-impelled friction-drop stamp, piston rods l, normally hanging clear of a trip a when the trip is in its lowermost position, are raised by the trip to lift pistons k working in cylinders d connected by ports e, near to but spaced from their upper ends, to a chamber g supplied through a non-return valve with compressed air, the pistons compressing the air above them and in the chamber g until they cover the ports e and the air in the cylinders cushions the pistons ; similar cushions are provided at the lower ends of the cylinders by spacing atmospheric ports j away from the cylinder ends d<1> and prevent the pistons k from striking the cylinder ends and the piston rods l from following the trip to its lowermost position. A single cylinder with air chambers formed along its length may replace the two cylinders d.
Patent GB-976776-A (GB)
Title: Improvements in or relating to electron discharge apparatus
Inventor: BURRIDGE WILLIAM MARTIN NOTMAN
IPC: H01J7/24
Filed: 1961-09-28
Abstract: 976,776. Cooling discharge apparatus. STANDARD TELEPHONES & CABLES Ltd. Sept. 28, 1961, No. 34959/61. Heading H1D. An evaporative cooling system for a thermionic valve 4 having a longitudinally ribbed anode 2 comprises a boiler 1 provided with an internal condenser having cooling coils 12, 13 for condensing the evaporate and at least some of the cooling coils are disposed around the space for the anode in such a manner that when the anode is in position within the boiler they provide, with the longitudinal ribs, vertical channels promoting thermo-syphoning of the coolant and restrict transverse movement of bubbles. The coils preferably comprise two contrawound helices, joined at one of their ends, and with leads 14 at their other ends for transmission of the coolant, the inner set of coils 12 being positioned close to the anode, thus providing a constant flow of liquid-vapour emulsion against the anode, but restricting transverse movement of the emulsion. A preferred embodiment with typical dimensions is described.
Patent GB-522016-A (GB)
Title: Improvements in or relating to methods of and machines for seam reducing
IPC: A43D55/00
Filed: 1938-12-01
Abstract: 522,016. Seams, reducing. UNITED SHOE MACHINERY CORPORATION. Dec. 1, 1938, No. 34991. Convention date, Dec. 2, 1937. [Classes 17 (i) and 112] A seam ridge on an article composed of leather or like parts united near their edges, such as the back seam of a shoe, is reduced by searing it. A suitable machine is constructed substantially as described in Specification 456,064, [Group VIII], having a driven work-supporting roll 20 and a co-operating driven feed-wheel 22. A searing tool 32, heated to from 1,200‹ to 1,500‹F. by an oxy-acetylene flame issuing from a nozzle 52, has a groove 42 for guiding the seam to the tool, and grooves 44, 45 which assist in the removal of charred material. The tool is pressed against the work by a spring of strength of some 20 to 30 pounds.
Patent GB-478693-A (GB)
Title: Improvements relating to the suppression of high frequency electrical disturbances
IPC: H04B15/02
Filed: 1936-07-18
Abstract: 478,693. Protective arrangements. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION, and DANIEL, L. H. July 18, 1936, No. 35102/37. Divided out of 478,646. [Class 38 (iv)] In arrangements for suppressing high-frequency interference caused by the influence of a dynamo-electric machine on other electrical apparatus, the terminals of the machine are bridged by a condenser 4, Fig. 1, and the frame 6 of the machine is earthed through one or more electrical filters 11, 12 which provide a low impedance earth connection at power supply frequencies and present a high impedance to one or more high frequencies or high frequency bands. A condenser 10 may be connected between one or both terminals of the machine and the frame 6, or it may be replaced by a resonant circuit suppressor having a low impedance at radio frequencies. To prevent damage to the earth lead filter during fault conditions, the ends of the inductance 29, Fig. 4, are connected to switch contacts 31, 32, the contact 31 being carried on a bi-metallic strip 33 so that the inductance 29 is short circuited before it is sufficiently heated by the fault current to become damaged. If the inductance is provided with an iron core, the contacts 31, 32 may be closed electromagnetically on the occurrence of a fault. Specification 478,646 is referred to.
Patent GB-1271458-A (GB)
Title: Insulated wire-connector and snap plug receptacle
IPC: H01R13/00
Filed: 1969-07-11
Abstract: 1,271,458. Two part couplings. MINNESOTA MINING & MFG. CO. 11 July, 1969 [12 July, 1968], No. 35137/69. Heading H2E. A connector for providing a socket on an insulated wire, comprises a contact element consisting of a bifurcate, flat, wire-engaging portion 34 and a split tube resilient socket 37, and a one-piece foldable insulating body 12 having opposed first half-channels 14, 15 adjacent a fold line 13 and opposed second half channels 16, 17 adjacent the first half-channels, the body member when folded providing a tubular first channel for the socket 37 and a parallel tubular second channel for a wire. One of the second half-channels 17 is slotted transversely to receive the bifurcate portion 34 and has posts 22- 35 on each side of the slot for supporting the bifurcate portion 34. The other of the second half-channels 16 along which the wire runs is slotted transversely to receive the bifurcate portion 34 and has openings 20, 21 to receive the posts 22-25 when the body is closed permitting the bifurcate portion 34, to be driven into insulation penetrating electrical contact with the wire, the body 12 being retained in a closed position by resilient latching means 32, 33. Preferred materials are polypropylene or a nylon polyamide polymer for the body, and cartridge brass for the contact element. The socket 37 is retained by arcuate ridges 26-29 at each end and the ends of the first halfchannels 14, 15 are sealed by semicircular walls 30, 31 which are positioned to allow clearance for the retention of a plug (43) by a detent 44 on the socket.
Patent GB-320561-A (GB)
Title: An improved cross-staff for surveying purposes
IPC: G01C15/00
Filed: 1928-11-30
Abstract: 320,561. Elder, A. S. W. Nov. 30, 1928. Cross-staves. - A surveyor's cross-staff enabling a rightangle offset to be laid off from any desired point along a given line comprises a base 1 on which are mounted vertical members 3, 5 which can be adjusted in slots 12 and are connected by a crosspiece 11. A plate 8 mounted on the member 11 is slotted to receive a slide 7 on which are mounted the sights 10 having their axis at right-angles to the centre line of the members 3, 5. The slide also carries a hook for attachment of a plumb-line. The members 3, 5 are first brought into the line of sight of a theodolite and are secured by clamps 4, 6. A tape is then run out from the theodolite and the slide 7 is adjusted until the plumb-bob is at the desired distance from the centre of the theodolite. The right-angle offset is then laid off by means of the sights 10.
Patent GB-1087380-A (GB)
Title: Improvements in mechanically driven cutting devices for flaying slaughtered animals
IPC: B27B19/00
Filed: 1966-08-08
Abstract: 1,087,380. Flaying apparatus. W. WEZEL, [trading as SCHMID & WEZEL]. Aug. 8, 1966 [Aug. 26, 1965], No. 35360/66. Heading B4B. Flaying apparatus comprises a drive mechanism 21, Fig. 1, and two serrated parting discs 1, 2 set into oscillatory rotary motion by drive levers 3, 4 engaged in an eccentric shaft 5, a partition member 9 sealing off the drive mechanism from the parting discs. The eccentric shaft 5 is mounted in the partition member and in a bearing cover 10, the bearing cover and parting discs being centred in the partition member. The partition member 9 is connected by a screw 29 to the bearing cover 10 and by a retaining screw 25, to a cover 24 partially covering the parting discs. In a locating tongue 11, Fig. 4, of the partition member 9 is inserted a centring member 22 which centres the bearing cover 10 directly. A hard metal centring ring 28 is secured to the centring member 22 by a peg 38, Fig. 4. By unscrewing the screw 25 the cover 24 and parting discs 1, 2 may be removed for cleaning and by unscrewing screw 29 the bearing cover 10 may be removed to permit the drive mechanism 21 to be cleaned and lubricated.
Patent GB-341624-A (GB)
Title: Improvements in or relating to the recording or reproduction of sounds and pictures
IPC: G03B31/00
Filed: 1929-11-19
Abstract: 341,624. Kinematograph apparatus. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, London. Nov. 19, 1929, No. 35379. [Class 97 (i).] Continuous-feed apparatus of the type described in Specification 336,284, [Class 97 (i), Optical systems &c.], is adapted for the combined recording or reproduction of sounds and pictures, and includes sound and picture gates which are substantially alongside one another. As shown, a film 1 bearing sound and picture records passes round a drum 2 within which a number of radially disposed plane mirrors 4 rotate about the drum axis 5 at one-half the speed of the film 1. Light from a lamp 6 passes through a lens 7 and the film 1 and falls obliquely upon two of the mirrors 4. A virtual stationary image of the illuminated part of the film AB is formed at A<1>, B<1> on the drum circumference and light rays from this image pass through a prism 10, lens 9, and prism 8 so as to emerge in a direction approximately parallel to the axis of the drum 2 so as to be thrown upon a viewing screen. Light from the lamp 6 also passes through the sound record on the film 1 and is reflected from a prism 11 through an optical system 12 and light slit 13 on to a photo-electric cell 14 from which a loud speaker is operated. The recorded sounds are substantially alongside the corresponding individual pictures on the film. If the record carrier is of paper or other opaque material the light 6 occupies a position 15, the light rays being reflected from the sound and picture records on to the prisms 11 and 10 respectively. If there is a small amount of stagger between the positions of the sound and picture records on the film this may be corrected by adjusting the angle of tilt of the prism 11 about an axis parallel to the light slit 13. The sound and picture records may be illuminated by light from separate sources. Specifications 323,923, [Class 40 (ii), Phonographs &c.], also is referred to.
Patent GB-619273-A (GB)
Title: Improved process for the manufacture of tiles
IPC: C04B28/02
Filed: 1946-11-23
Abstract: In the manufacture of mottled or veined tiles, marble, spar, or granite dust is mixed with white or portland cement, water is added to produce a firm consistency, a part of the mass is separated and mixed with a colouring-material and a layer thereof is applied over a layer of the uncoloured mass, the composite mass being then rolled into a helical form, flattened and sections cut therefrom for subsequent moulding to desired shape.  A number of layers, which may be differently coloured, may be interposed between layers of the uncoloured material.
Patent GB-1194826-A (GB)
Title: Improvements relating to Electro-Plating and Etching Processes
Inventor: GRASSBY ROBERT KEITH
IPC: C25D5/02
Filed: 1966-08-09
Abstract: 1,194,826. Masking electrically conductive surfaces by electro-painting. RONSON PRODUCTS Ltd. July 21, 1967 [Aug. 9, 1966], No.35684/66. Heading C7B. A method for electro-plating or etching a selected area of an electrically conductive surface comprises masking said area with a non-conductive material, e.g. with masking tape or a photo-resist, electro-painting the unmasked area, at least partly curing the paint, removing the masking material, and electro-plating or etching the area thus exposed. The electro-deposited paint may be fully cured or may be removed from the workpiece surface. A flash coating of copper may be applied to the surface before electro-painting, e.g. if the surface to be treated is of gold. Using the process a relief pattern of silver may be applied to goldplated, brass cigarette lighter shells.
Patent GB-805044-A (GB)
Title: Improvements in radio-active scanning devices
IPC: G01N23/12
Filed: 1955-12-13
Abstract: 805,044. Radio-active scanning devices. MOLINS, D. W., POWELL, G. F. W., POCOCK, F., and MOLINS MACHINE CO. Ltd. Dec. 13, 1956 [Dec. 13, 1955], No. 35751/55. Class 40 (3). A scanning device for loose tobacco filler supported on a moving paper web 1 comprises a ray emitter 3 and ionization chamber 5 positioned one above and one below the filler, side guides 2 confining the filler to a width less than that of the paper web, and a slotted plate supporting the web, the slot 8 being at least as wide as the filler and at least as long as the emitter 3. The guides 2 diverge from the entry end. The ray source comprises a narrow strip of radioactive material positioned obliquely across the filler so as to scan its entire width. A carrier 6 supporting the emitter is slidable horizontally to an inoperative position (Fig. 2, not shown) where the window of the emitter can be inspected by means of a periscope device consisting of a prism 11 with 45 degrees reflecting surfaces at each end and made of transparent plastic material capable of absorbing rays. Dust is blown from the window of the ionization chamber and fed into a duct 10, and a fixed brush 12 is arranged to sweep the window of the emitter each time the carrier 6 is moved.
Patent GB-784132-A (GB)
Title: Apparatus for generating and cutting gears
IPC: B23F17/00
Filed: 1953-12-23
Abstract: 784,132. Gear-cuffing. TRACE, K. B. Dec. 23, 1953, No. 35777/53. Class 83 (3). A gear-cutting machine comprises a body 27 having means 52 to rotate a work spindle 54 in one direction, and means 55 to rotate at least one toothed cutter (A, B) in the opposite direction, each cutter tooth having a first cutting edge 112 to cut a recess to full depth in the blank, a second edge 114 to cut the recess to full width, a third edge 113 facing outwardly from the axis of rotation to cut an involute on one side of the recess, and a further edge 115 facing towards the axis for cutting the second involute. The workspindle 54 is fed vertically by a screw 47 and is rotated, with the cutters, by a motor 31. The cutters are mounted on slides so that their axial spacing may be adjusted, the driving gears 63 being mounted on a cruciform member so that they are adjusted simultaneously. The work is fed axially during cutting and the cutters cut a recess in the face of the blank which is gradually deepened.