baber/WOPTO huggingface dataset:
Patent GB-1331814-A (GB)
Title: Controlling the production of plate electrodes such as shadow masks for colour television tubes
IPC: H01J9/14
Filed: 1971-04-19
Abstract: 1331814 Making shadow masks ZENITH RADIO CORP 19 April 1971 [28 Jan 1970] 20003/71 Heading B3A [Also in Divisions B6 and G1] A shadow mask for a television colour tube is etched in two stages, the first stage comprising forming or enlarging apertures in the mask to less than a predetermined size and the second stage comprising enlarging the apertures to the predetermined size. Between the two stages the size of the apertures is sensed by measuring the transmissivity of the mask to impinging radiation (e.g. light) and the period of etching in the second stage is regulated as a result of this measurement. The mask may be of steel and the etchant ferric chloride.
Patent GB-596891-A (GB)
Title: Improvements relating to animated figures particularly for advertising or display purposes
IPC: G09F19/08
Filed: 1945-08-03
Abstract: 596,891. Toys. POSGATE, S. G. Aug. 3, 1945. No. 20007. [Class 132 (iii)] [Also in Group XVIII] An animated figure for advertising, display, or other purposes comprises a cut-out figure of a bird 1 mounted to rock on a pedestal 13. The head 3 is formed of two shaped side pieces fixed to the flat body 1 and carrying in a gap a pivoted member, part of which represents a lower beak 5 and part an eye 6 which is seen through an opening 7 on each flank. The body 1 is counterweighted at 9, and may have a knife-edge 11 bearing on a flat 14 on a fixed cross-bar 12. Alternatively the body 1 may be fixed to a pivoted cross-bar 12. When the bird is rocked, the beak 5 and eye 7 move in a natural manner owing to the swinging of the pivoted member relatively to the head 3. The device may be rocked by hand or by electric,. mechanical, or other means.
Patent GB-167176-A (GB)
Title: Pumping apparatus for use in connection with domestic water supply systems
IPC: F04B9/04
Filed: 1920-07-07
Abstract: 167,176. Vaile-Kimes Co., (Assignees of Kimes, H. W.). April 8, 1916, [Convention date]. Crank-actuated pumps; casings for actuating - mechanism; rod guides; waste liquid, catching.- In a crank-driven reciprocating pump, the crank works in a cylindrical casing 38 opening into a cylindrical guide 39 for the cross-head 41, and the end of the guide is closed by an apertured baffled gland 42, which prevents liquid on the pump-rod 12 from entering the crank casing The member 42 comprises a sleeve portion 70 which wipes the liquid from the rod, and an annular conical flange 71 which directs the liquid removed by the sleeve 70 away from the interior of the casing 39.
Patent GB-232100-A (GB)
Title: Electrical switch mechanism
IPC: F21L4/00
Filed: 1924-08-25
Abstract: 232,100. Marks, E. C, R., (National Carbon Co., Inc.). Aug. 25, 1924. Press-button switches specially adapted for flashlamps comprise a resilient contact arm 12 which is adapted to be depressed into contact with a conductor 18 by a button 9 which moves in a housing 5 slidable in a direction parallel to the arm 12. The button 9 has a flange 10 which co-operates with a key-hole slot in the base member 2 so that, from the position shown in the Figure, the button can be depressed and then released or after being depressed, the button together with the casing can be slid to the right when the flange 10 prevents return of the button and contact is permanently established. To prevent accidental displacements, a knob on the button co-operates with one or other of two recesses 15, 16 in the contact arm. The conductor 18 is insulated from the base by insulation 23.
Patent GB-917035-A (GB)
Title: Improvements in or relating to soot removal
IPC: C10L10/06
Filed: 1960-06-08
Abstract: The ignition temperature of soot in furnaces, boilers and like combustion installations is reduced by applying to the soot a dispersion of finely divided metal or metal alloy in a suitable dispersion medium, suitably by spraying the soot with the dispersion from an aerosol container which uses dichlorodifluoromethane or trichloromonofluoromethane as a propellant.  Methylene dichloride, ethanol and propylene glycol may also be present in the dispersion medium, which may be stabilized with latex, a water insoluble soap which is soluble or dispersible in the dispersion medium such as zinc or aluminium stearate, or a synthetic resin such as a polyacrylic acid ester. Suitable metals are zinc, copper, brass or mixtures thereof which have a particle size less than 500 microns. Cyclohexylamine may also be present in the compositions.ALSO:A composition for reducing the ignition temperature of soot comprises polyisobutyl acrylate, zinc and copper powders, methylene dichloride, trichlorofluoromethane and dichlorodifluoromethane.
Patent GB-238704-A (GB)
Title: Manufacture of new stable diazo-compounds
IPC: C09B35/12
Filed: 1924-08-26
Abstract: The diazo compounds of unsulphonated aryl- and aralkyl-ethers of o-aminophenols are obtained in stable solid form by acting on them with an aromatic sulphonic acid and isolating by evaporation or precipitation.  The products couple instantly and their solubility may be augmented by addition of a naphthalene tri- or higher sulphonic acid.  According to examples, products are obtained from the following components: (1) diazotized 4-chlor-2-aminophenol phenyl- or benzyl-ether and naphthalene-1 : 3 : 6-trisulphonic acid or naphthalene-2 : 7-disulphonic acid; (2) diazotized 4-chlor-2-aminophenol phenylether and 3-nitrobenzene-1-sulphonic acid.  The diazo compounds of the chlorphenyl-, cresyl-, chlorcresyl-and naphthyl-ethers of 4-chlor-2-aminophenol are also specified.  Specifications 7820/09, 11929/09, 202,984, [Class 15 (ii), Dyeing, Processes &c. for], and 211,223, are referred to. Naphthylethers of 4-chlor-2-aminophenol may be prepared by condensing 1 : 4-dichlor-2-nitrobenzene with the sodium salt of a naphthol and reducing the nitro group.
Patent GB-414217-A (GB)
Title: Improvements in and relating to the manufacture of cast metal pipes and like articles centrifugally
IPC: B22D13/02
Filed: 1933-07-18
Abstract: 414,217. Casting-plant. CARRINGTON, F. G., 1030, Christine Avenue, Anniston, Alabama, U.S.A. July 18, 1933, No. 20261. [Class 83 (i).] Metal-pouring ; casting-machines ; castings, extracting.-A casting-plant comprises a number of centrifugal moulds m<1>, m<2>, m<3> which are charged successively by ladles d which are controlled, from a station S, to move on rails d<2> to and from the spout b<3> of cupolas b<1>, b<2> or to a charging basin c. Electrical devices, such for instance as described in Specification 414,235, are used for arresting the ladles at the required positions and for tilting them. During pouring, the mould rotates and runs down an incline f. The cast pipe is then drawn by mechanism onto a conveyer h driven by a motor k which deposits it on rails h<1> to convey it to the annealing furnace h<2>. If the distance between the cupola and any mould is great two ladles may be used, the rail having a byepass and switches. Scrap pipes are placed on a runway h<4>.
Patent GB-801328-A (GB)
Title: Storage vessels for liquefied gases
Inventor: KEEPING WILLIAM OWEN
IPC: F17C3/08
Filed: 1956-07-03
Abstract: 801,328. Storing liquified gases. BRITISH OXYGEN CO., Ltd. June 26, 1957 [July 3, 1956], No. 20582/56. Class 8(2). A heat insulated liquified gas container 1 has heat insulated liquid withdrawal and vapour venting ducts 4, 9 located substantially within the liquid content space of the container. The withdrawal duct 4 extends from its lower open end through the diagonally opposite corner of the container, whereas the venting duct 9 extends from its upper open end through the opposite comer.
Patent GB-732019-A (GB)
Title: An apparatus for the gasification of solid fuels
IPC: C10J3/46
Filed: 1953-07-24
Abstract: 732,019. Gasifying powdered fuels. KOPPERS GES., H. July 24, 1953 [July 26, 1952], No. 20626/53. Class 55 (1). In apparatus for gasifying finely divided solid fuels suspended in oxygen or oxygen-enriched air in which a preformed mixture is blown through a pipe 4 ending as a nozzle 5 in the reaction space 1, a pressure meter 13 is connected to the pipe before it reaches the nozzle and influences through a relay a valve 14 in the oxygen pipe 9 so that at a particular pressure the oxygen supply ceases and a motor driving a feed worm 7 for the fuel is switched off. Optical or acoustic signals are also operated.
Patent GB-1015141-A (GB)
Title: Improvements in or relating to photographic copying apparatus
IPC: G03B27/52
Filed: 1962-05-29
Abstract: 1,015,141. Photographic copying apparatus. EASTMAN KODAK CO. May 29, 1962 [April 2, 1962], No. 20662/62. Heading G2A. Photocopying apparatus has film transport means comprising a lever pivoted between its ends, such that as one end of the lever is displaced, the movement of the other end causes the film transport; means are also provided to vary the position of the pivot between the ends of the lever so as to vary the degree of transport. Fig. 1 shows the arrangement for transporting the documents to be copied through the photographing station. The motor-driven crank shaft 11 carries three cranks 21, 23, 25, pivoted respectively to three pawl arms 27, 29, 31. The arms themselves are pivoted on a shaft 35 mounted on a bracket 37. Each pawl arm has an adjustment screw 53 passing through a block 55 carried by shaft 35, the pawl arms thus being adjustable longitudinally by a motor acting through flexible shafts 47, 49, 51. Thus the pivot point for the pawl arms is in effect displaced so varying the extent of the movement of the film through the exposure station. The film advance is effected by an arm 79 pivoted on an axis 81, and normally biased anticlockwise by a spring 84. This arm drives the roller 83 which carries the film F, by means of a one-way clutch. The lower end of arm 79 has a pin 85 which engages under three pawl arms 61, 63, 65 pivotally mounted at the lower ends of the respective arms 27, 29, 31. Means for sensing the width of the area on the document to be photographed controls solenoids 87, 89 which actuate the pawl arms 61, 63, so that the anticlockwise movement of arm 79, advancing the film, is limited by arm 61, or 63, or 65, according to whether a single, double or triple width area is to be photographed. A masking arrangement is comprised by a fixed element and a movable element, the latter being carried on a shaft 121 which bears against a cam 117 on a plate 118 carried by arm 79. Fixed to plate 118 is an arm 227 whose position relative to arm 79 (and hence that of cam 117 also, and hence the width of the mask) can be altered by an adjustment screw 129. The optical system is shown diagrammatically by Fig. 3. The document D is illuminated by light from a source 147 through an aperture P. The image is directed to a first mirror 151, then through a projection lens 153 to a second mirror 155, and thence to the film F at exposure station E. In order to obtain various magnifications. a coordinated system of mirror and lens movements is provided, the image at E always remaining in focus. When the optical elements occupy the position shown in full lines in Fig. 3, a minimum magnification is obtained, with a maximum magnification at the position shown in dashed lines.
Patent GB-148825-A (GB)
Title: A mechanical discharge device for kilns for burning lime, cement and the like with aflat grate
IPC: F27B1/21
Filed: 1920-07-10
Abstract: 148,825. Fuchs, W. Feb. 14, 1919, [Convention date]. Discharging.-The discharge device of a kiln for burning lime, magnesite, cement, &c. consists of a grate b to which a combined reciprocating and circular motion is given by means of cranks, eccentrics &c. such as c, g. As shown, there is a central driving-crank c and a guide crank-pin g at the periphery. Variations as to number of guide crank-pins and positions of driving-crank pins may be made, and the cranks may be of different length, the holes by which the grate engages them being then elongated.
Patent GB-531294-A (GB)
Title: Improvements in coin-operated mechanism
IPC: G07F17/26
Filed: 1939-07-17
Abstract: 531,294. Coin-feed apparatus. SOPER, H. N., and UNIVERSAL POSTAL FRANKERS, Ltd. July 17, 1939, No. 20733. [Class 27] Ticket printing and like apparatus; coin action, weight.-A coin-freed mechanism for imparting a pre-determined degree of rotation to a wheel under the action of one or more inserted coins comprises a ratchet wheel 5 mounted on the shaft 4 of the wheel 1, here shown as a printing wheel. The wheel 5 is advanced by a pawl 6 hanging from the end of a lever 7 pivoted at 8 to a supporting frame 3. The lever 7 extends through slots 9, 10 in coin shoots 11, 12 located so as to impart different degrees of swing to the lever 7 and hence different extents of rotation to the wheel 1. A pin 13 keeps the pawl 6 normally off the wheel 5, but allows engagement of these parts as soon as the pawl rises. A detent 16 prevents backlash, and is automatically disengaged at the end of the operation for the return to zero position of the wheel 1 by means such as a hair spring or a weighted rack meshing with a pinion on shaft 4. Abutting projections locate the wheel 1 in zero position.
Patent GB-1040157-A (GB)
Title: Disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D65/14
Filed: 1962-05-30
Abstract: 1,040,157. Disc brakes. DUNLOP RUBBER CO. Ltd. May 22, 1963 [May 30, 1962], No. 20768/62. Heading F2E. In a servo disc brake the axis of a friction pad assembly 17, 18 on one side of the disc 10 is inclined to the perpendicular from the plane of the disc and the axis of a friction pad assembly 14, 15 on the other side of the disc is perpendicular to the plane of the disc, a non-rotatable housing 11 guides and supports the friction pad assemblies, a layer of low friction material being interposed between the friction pad assembly 17, 18 and the housing 11, and a mechanism 19, 21 effects frictional engagement between the friction pad assemblies and the disc so as to provide a self-servo effect in the normal direction of rotation of the disc. Preferably the mechanism comprises a piston and cylinder 21, 19 respectively incorporated in the housing 11 and associated with the inclined pad 17, the axis of the mechanism being aligned with the axis of the pad. The housing 11 is adapted to be pivoted on pivot pins 26, 27 attached to links 24, 25 secured to a non- rotatable part of the vehicle (not shown). Resilient bushes or the like may be incorporated in the link pivots in order to centralize the housing 11. In an alternative embodiment (not shown) the disc may be slidable in an axial direction.
Patent GB-420995-A (GB)
Title: Air-cleaners
IPC: B21C47/00
Filed: 1933-07-24
Abstract: 420,995. Air cleaners. DOUGLAS, J., Douglas Works, Douglas Road, Kingswood, Bristol. July 24, 1933, Nos. 20787 and 20788. [Class 8 (ii)] [See also Groups II and XXXIV] An air cleaner for an internal-combustion engine &c., has a tangential air inlet tube 5 and coaxial filter gauzes 6, 8 through which the air passes to the axial outlet 3 and to the carburetter; dust thrown centrifugally outwards collects in an exit gulley 10. Oil mist may be drawn from the engine crank case through a pipe 9 by the air flow, the oil being delivered either to the filter chamber, where it wets the gauzes, or to the carburetter inlet, and passing to the engine, where it serves for upper cylinder lubrication.
Patent GB-646321-A (GB)
Title: Improvements relating to food whisks
IPC: A47J43/10
Filed: 1948-08-06
Abstract: 646,321. Mixing appliances. GILMORE; S., and CLOTTU, H. A. Aug. 6, 1948, No. 20799. [Class 86] In a whisk comprising a cage of wire loops detachably secured to a handle or holder the ends 5 of the wire loops 4 are held between an inner frusto-conical member 6 with an internal screw-thread by which it is attached to the handle and an outer frusto-conical sleeve 7, the end portions of the wire loops being locatable by contact of their ends against the flange 2 on the handle and by out ward bends at the other end of the sleeve member. As shown in Fig. 2 the inner frusto-conical member is provided with grooves 8 to receive the ends of the wire loops. The handle and frusto-conical members may be made of an aluminium alloy and the wire loops may be of stainless steel.
Patent GB-705906-A (GB)
Title: Improvements in the manufacture of cold water soluble starch
Inventor: WISE STANLEY GEORGE ARTHUR
IPC: C08B30/12
Filed: 1950-08-23
Abstract: Cold-water-soluble starch powder is made by reacting starch with calcium chloride and water at 15 to 35 DEG C., preferably 17 to 27 DEG C., the ratio of calcium chloride to water being low enough to render the starch soluble in cold water but not so low as to impede filtration by causing gel formation, and the ratio of calcium chloride solution to starch being sufficient to leave a filterable excess of liquid when the starch is rendered soluble, filtering off this excess and pulverizing the filter cake.  The solution preferably contains from 33 to 39 per cent. by weight of calcium chloride (calculated as anhydrous), but it may contain 41 per cent. when potato starch is used.  Up to 2 parts by weight of magnesium chloride (calculated as the hexahydrate) may be added for each part of calcium chloride, or up to 1 part of zinc chloride (calculated as anhydrous) may be added for each 10 parts of calcium chloride present.  When the maximum amount of magnesium chloride is added, an amount of zinc chloride not exceeding 1.5 parts may also be added for each 10 parts of calcium chloride.
Patent GB-152679-A (GB)
Title: Improved electromagnetic wave receiving system
IPC: H04B1/12
Filed: 1920-07-12
Abstract: 152,679. Regnauld de Bellescize, H. J. J. M. Jan. 22, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Open to inspection, Oct. 25, 1920. Wireless signalling; aerials.-A receiving apparatus for wireless telegraphy and telephony, designed to eliminate interference from atmospheric and other disturbances comprises two distinct aerials having nomutual reaction, a receiving aerial tuned to the desired waves, and a balancing aerial slightly mis-tuned, both aerials having aerial damping, inductance, and effective height. The aerials are connected through balanced circuits, amplifiers, and detectors to a differential arrangement, whereby the disturbing signals are neutralized. Fig. 4 shows one circuit arrangement, and Fig. 7 shows the aerials in front and side elevation. Each aerial A1, A2 is formed of a closed coil tuned by condensers C1, C2 and earthed coupling coils P1, P2 connected symmetrically to the aerial coils. The whole is arranged symmetrically about a plane 0, Fig. 7, but the axis of one coil is displaced from the axis of the other a distance H. Resistances B<1>, B<2> are placed in the aerial leads and adjusted to equalize the damping of the two systems. The secondary circuits S1, S2 have the same damping and geometrical arrangement, and do not act on each other. High-frequency amplifiers E1, E2, detectors F1, F2, and low-frequency amplifiers G1, G2 may be provided, corresponding parts being as far as possible identical for the two systems. The low-frequency circuits comprise inductance L and resistance R of suitable values. When a definite note is received, the low-frequency circuits are tuned by condensers, and the note is chosen of a low pitch, say 200. The moving part of the indicator J is also tuned to the desired frequency and its damping suitably adjusted. In a modification inductance coils in the plate circuits of the low-frequency amplifiers are coupled differentially to a circuit comprising a condenser, an inductance, and a resistance. The current variations in this circuit are amplified by a thermionic valve maving a telephone in a plate circuit. The receiving apparatus is preferably enclosed in a metal casing. The apparatus may be employed for eliminating signals due to a disturbing station working on a wave length l differing by a small amount from the desired wave length m, by tuning the balancing aerial A<2> to a wave length 2 m-1, so that each aerial is mistuned to the same extent m-1.
Patent GB-904751-A (GB)
Title: Improvements in or relating to flat knitting machines
Inventor: BURNS JOHN HUT
IPC: D04B7/02
Filed: 1959-06-18
Abstract: 904,751. Knitting - machines. CO-OPERATIVE WHOLESALE SOCIETY Ltd. May 30, 1960 [June 18, 1959], No. 20911/59. Class 74 (2). Stop-blocks 28 are adjustably mounted on a rail 29 and are intermittently moved by a leadscrew 27 being rotated by pawl- and-ratchet mechanism 16 . . . 20 under the control of selectors in a box 30 attached to the cam carriage so that intarsia panels can be knitted on a flat-bed machine.
Patent GB-913424-A (GB)
Title: Improvements in electrical apparatus for handling data
Inventor: SCHREINER KENNETH EUGENE
IPC: H03K19/21
Filed: 1959-06-18
Abstract: 913,424. Digital electric calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 18, 1959, No. 20928/59. Class 106 (1). . Digital calculations are performed by applying electromagnetic waves having predetermined phase characteristics to a waveguide structure having a plurality of arms meeting at a phase-determinative junction and a variableimpedance element in at least one of said arms. The various calculations performed are set out in Figs. 1 and 2 which are self-explanatory. The digits 1 and 0 may be represented by waves 180 degrees out of phase or by pulses of opposite polarity. Fig. 3 shows a wave-guide structure for adding three binary digits excluding carry which may be performed by a separate majority circuit. Digits A and B are entered into arms 22, 24 of a hybrid junction so as to affect oppositely-poled semiconductor diodes 40, 42 connected over low-pass filters such as 65 and coaxial cables to similar diodes 44, 46 in another hybrid junction which receives digit C as an input to arm 32. The phase of the output on arm 34 indicates the binary sum of the three digits. An EXCLUSIVE OR system (line 3 of Fig. 1) is shown schematically in Fig. 4. The A and B inputs are added in the left arm of the hybrid junction and subtracted in the right arm if they are in phase to give a negative output at X. If they are of opposite phase the functions of the left and right arms are reversed and the output at X is positive. Fig. 5 shows another two-input EXCLUSIVE OR circuit. Input B is a unidirectional voltage or pulse impressed on oppositely-poled diodes 100, 102. Input A and output X are phasemodulated alternating-current waves. According to whether A and B are alike or opposed, so X isve or +ve. The systems of Figs. 4 and 5 are combined in Fig. 6 to provide an addition circuit taking account of carry C from the preceding order. Fig. 8 shows a two-position switch. A positive or a negative pulse at A puts the output at X under the control of the input at B or C, respectively, by rendering one or other diode 90, 92 more conductive. In Fig. 10, the algebraic sum of A and B is delivered at X. The second side arm 120 is non- reflectively terminated. If the diode is biased so as to be initially conductive, Fig. 10 acts as an OR circuit. Fig. 11 shows an AND circuit and Fig. 12 has an output when only 1 or 2 out of 3 inputs are positive.