baber/WOPTO huggingface dataset:
Patent GB-692609-A (GB)
Title: Improvements in the thickness measurement of thin sheets and the like by -a-rays
IPC: G01N23/16
Filed: 1952-03-10
Abstract: 692,609. Measuring thickness by radioactivity. BERTHOLD, R. March 10, 1952 [March 10, 1951], No. 6226/52. Class 40 (iii). In measuring thickness by means of Beta rays a natural source of high intensity is used, sensitivity being maintained by substantially balancing the ionization current, only the small unbalance being indicated. As shown, Beta rays from one of the natural sources 1a, 1b, 1c, any one of which may be uncovered by movement of a plate 15, pass through a moving web 2 under test to an ionization chamber 3. The voltage developed by the ionization current across the anode-cathode space of a triode 17 is balanced by the current through a balancing chamber of a triode 17 is balanced by the chamber 3a receiving radiation from a source 1d through a plate 2a. Thus only variation of its thickness of the material 2 from a setting determined by the balancing chamber is indicated by the meter 11. The triode is mounted in a metal housing mechanically united with the ionization chambers. In the arrangement of Fig. 1 (not shown), the ionization current produces a voltage in a part of a slide wire through which a steady current is maintained by an auxiliary voltage source. The slider is adjusted until a combined meter and amplifier indicate balance when the slider position is a measure of thickness. In the embodiment of Fig. 2 (not shown), a central radiation source directs Beta rays through the test material on one side and a standard on the other to two ionization chambers the currents of which flow through a common load resistor, unbalance being indicated by an amplifier and meter connected across the resistor.
Patent GB-1376374-A (GB)
Title: Pressure log for ships
IPC: G01P5/14
Filed: 1972-02-10
Abstract: 1376374 Measuring fluid-flow JUNGNER INSTRUMENT AB 10 Feb 1972 [11 Feb 1971]  6253/72 Heading G1R In a pressure log for a ship the stagnation pressure (dynamic pressure + static pressure) is fed via an inlet 1 in a ships stem and the static pressure is fed via an inlet 2, located in a stem bulb of a ship, through downwardly inclined conduits 6, 5 to separate chambers 4, 3 partly filled with air and having volumes V 3 , V 4  containing liquid at a level below the inlets 1 and 2 and the arrangement is such that air is supplied via an humidifier 14 and pipes 7, 8 and bubbles through the inlets 1, 2, so as not to cause an air lock, and to a master apparatus 9 comprising a detector 10 with a diaphragm 4 to which stagnation and static pressure are applied on opposite sides. Line 8 is connected via branch 12 to a pressostat 13 which interrupts the current supply to the speed servo circuit of the master apparatus 9 when the pressure in line 8 drops below a predetermined value. The air volume of chambers 3, 4 is 65 to 70% of the total volume in the system.
Patent GB-345064-A (GB)
Title: Improvements in or relating to button or clasp fastenings for shoes or the like
IPC: A44B17/00
Filed: 1930-02-25
Abstract: 345,064. Buckle fastenings. WITTE, O. and WITTE, M., (trading as WITTE GEB.), Leisnig, Saxony, Germany. Feb. 25, 1930, No. 6271. Convention date, Sept. 19, 1929. [Class 43.] In strap fastenings comprising a clasp, a stud and socket, and a movable clamping piece, a fastening member is carried by a clamping plate sliding in a guide frame having no central transverse member. A strap e is clamped between a guide frame a and a clamping plate c, and is held by spikes d. The clamping plate c constitutes a socket for a stud fastening, and is capable of sliding in channels b in the frame a. The plate c is bent so that its upper surface is level with that of the frame a in order to present a flat appearance.
Patent GB-756551-A (GB)
Title: Improvements in or relating to electron-image apparatus
IPC: H01J29/66
Filed: 1953-03-06
Abstract: 756,551. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 6, 1953 [March 10, 1952], No. 6287/53. Class 39 (1). The magnetic electron lens of an image converter tube consists of three windings so designed that the overall magnification may be varied by a single control while maintaining a sharp image. With an arrangement of given geometry the number of ampere-turns i, n necessary for each value of magnification V, is determined, Fig. 1, preferably for the same rotation of the image. The number of turns for each winding n1, n2, n3 is then chosen so that within a certain range the sum of the currents through the windings is constant. In the series arrangement of coils 9, 12, 15, Fig. 3, the settings of ganged rheostats 11, 14 are so chosen that at every setting the sum of the currents through the windings 12, 15 is equal to the difference between the constant current i and the current in the winding 9. One rheostat may be a linear resistor and the other graded in the required manner. It may be composed of a series of linear resistances of graded magnitude. The two stabilizing tubes 3, 4 and the resistance 5 keep the voltage between terminals 6 and 7 constant. In another arrangement, Fig. 4, with the windings 9, 12, 15 in parallel, the currents in the windings 12, 15 are controlled by triodes 22, 23. The control voltages are derived from ganged potentiometers 24, 25 in series with the three parallel impedance arms. One of the potentiometers is linear while the other has a graded resistance which is such that the sum of the currents in the windings is constant. The overall current is kept constant by the current regulator 20. Winding 9 surrounds the photo-cathode, second winding 12 chiefly controls the magnification and third winding 15 serves mainly for correcting the image rotation. Specification 506,825, [Group XL], is referred to.
Patent GB-1535270-A (GB)
Title: Biasing magnetic domain devices
IPC: G11C11/14
Filed: 1976-02-18
Abstract: 1535270 Magnetic domain devices HONEYWELL INFORMATION SYSTEMS Inc 18 Feb 1976 [18 Feb 1975] 06344/76 Heading H3B A magnetic domain device with coils 12 is located between (permalloy) plates 25, 29 carrying low permeability highly resistive (ferrite) shields 26, 30 (to reduce eddy currents) on their facing surfaces and coupled with magnetizing means (i.e. slab magnets 24, 28 or bar magnets, Fig. 3, not shown) between their ends.
Patent GB-628288-A (GB)
Title: Improvements in or relating to retainer rings for use on rotating shafts
IPC: F16B21/18
Filed: 1947-03-06
Abstract: 628,288. Circlips. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 6, 1947, No. 6366. Convention date, Oct. 10, 1945. Class 89 (ii)] A circlip, shown for securing a ball race against a shoulder in a shaft has a pair of opposed key members 16 to engage a groove 14 in the shaft and a pair of masses 17 located between the keys and connected to them by resilient sections 18. Pressure applied to the mass 17 deforms the ring and allows the keys to slide over the shaft to engage the groove under the resilience of the ring when pressure is removed. The masses 7 are such that their centrifugal effect exceeds that of the keys and maintains tight engagement of the keys in the groove when the shaft is rotating at high speed.
Patent GB-540296-A (GB)
Title: Improvements relating to treatments for renovating or preventing shrinkage of films and other articles of cellulose derivatives and the like
IPC: C08L1/08
Filed: 1940-04-09
Abstract: 540,296. Treating films &c. with softening agents. TECHNICOLOR MOTION PICTURE CORPORATION. April 9, 1940, No. 6413. Convention date. July 25, 1939. [Class 2 (ii)] [Also in Group XX] Articles e.g. photographic films made from cellulose derivatives or like plastic materials containing volatile plasticizing agents are treated with the vapour from a composition comprising a solvent mixture of volatile organic solvents, a volatile plasticizer, and water in approximately azeotropic proportions and an inert solidifying agent dispersed in the solvent mixture in sufficient amount to render the composition non-fluid. The treatment may be carried out so as to prevent shrinkage of the articles or to restore the properties of articles which have deteriorated through loss of their volatile constituents. The solidifying agent may be soap, glue, clay, asbestos fibre, or wood flour, in sufficient quantity to impart a stiff paste-like or similar semi-solid consistency. The articles to be treated are placed in an enclosed conditioning chamber containing the vapour emanating from the composition. The volatile plasticizer may be dimethyl phthalate, diethyl phthalate, dibutyl phthalate, dibutyl tartrate, triphenyl phosphate, tricresyl phosphate, or camphor. The organic solvent may be ethyl alcohol, n-propyl alcohol, iso-propyl alcohol, n-butyl alcohol, tert-butyl alcohol, amyl alcohol, amyl acetate, ethyl acetate, benzene, naphtha, carbon tetrachloride, or chloroform. In an example a stiff paste is made by mixing camphor, ethyl, propyl, and butyl alcohols, dimethyl phthalate, water, asbestos fibres, and soap flakes. For treating photographic films to prevent shrinkage or to restore shrunken films, the stiff paste is placed in a can having a perforated cover and the can is placed in a container for receiving the films. The atmosphere of the container soon becomes saturated with the vapour of solvent and plasticizer. The Specification as open to inspection under Sect. 91 comprises also the use of liquid compositions in which the inert solidifying agent is omitted. Such compositions may be sprayed or atomized into the conditioning chamber. Compositions containing no water may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-326331-A (GB)
Title: Improvements in or relating to vibratory diaphragms for sound recording and reproducing apparatus
IPC: H04R7/00
Filed: 1929-02-28
Abstract: 326,331. Williamson, R. E. Feb. 28, 1929. Diaphragms.-The diaphragm of a sound recording or reproducing instrument consists of a thin disc bf wood, preferably boxwood, seasoned in oil and afterwards treated with a mixture of gum, spirits of naphtha, and amyl acetate.
Patent GB-930654-A (GB)
Title: Apparatus for sealing a semi-conductor device in a housing by welding
IPC: B23K11/30
Filed: 1959-08-12
Abstract: 930,654. Welding by pressure. SIEMENSSCHUCKERTWERKE A.G. Aug. 12, 1959 [Aug. 12, 1958], No. 6521/63. Divided out of 930,653. Class 83 (4). Apparatus for sealing a semi-conductor device 8 in a two-ended housing having a main housing part, as shown a cylindrical metal tube 1, and a closure part, such as metal cover 6, at one end thereof, comprises a jig 4 formed with a recess 4a to receive the other end of the housing, and also formed with a duct 4b to receive a tube 15 through which a protective gas, e.g. nitrogen, is passed into the housing, a first welding electrode 5 in the form of a plurality of gripping parts which close upon the sides of the housing, a second welding electrode 11 which contacts the closure part 6, means (not shown) for applying a voltage between first and second welding electrodes so as to weld the closure part to the main housing part, and a further welding device, as shown electrodes 16, 17 in passageways in the jig 4, for sealing the tube 15. The cover member 6 comprises a disc portion 6a which fits into the open end of the housing (which may be bevelled at 1d), thus accurately locating parts 1 and 6.
Patent GB-1348628-A (GB)
Title: Process for stabilising benzyl chloride
IPC: C07C67/00
Filed: 1973-02-09
Abstract: 1348628 Stabilization of benzyl chloride BAYER AG 9 Feb 1973 [10 Fob 1972] 6558/73 Heading C2C Benzyl chloride is stabilized by adding thereinto a lactam in an amount ranging from 0À005 to 1À0% by weight. The preferred lactams are 2-pyrrolidone, capryllactam or #-lauric lactam.
Patent GB-124090-A (GB)
Title: Improvements in or relating to Apparatus for Bending Pipes.
Inventor: BILTON THOMAS BELL
IPC: B21D7/06
Filed: 1918-04-18
Abstract: 124,090. Bilton, T. B. April 18, 1918. Angular bending.-A pipe is supported by blocks f which are rotatably secured to a bed-plate by pins e fitting in holes d. The pipe is filled with resin and bent by an hydraulic ram h. The holes d are placed to give different angles of bend. The back of the ram may be provided with hydraulic leathers. Curved faces f<1> are shaped to fit different sized pipes.
Patent GB-146925-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/32
Filed: 1920-03-05
Abstract: 146,925. Segal, L. July 8, 1919, [Convention date]. Condensers.-A polyphase condenser comprises a number of conducting-plates coiled about a common axis with intervening dielectric layers consisting of absorbent material such as paper or textile material which is saturated with an insulating-substance after assembling. The Figure shows the application to a three-phase condenser with three conducting plates or sheets a, b, c of metal foil. Aiter assembling with the dielectric layers of absorbent paper or textile material, the condenser is saturated with a normally solid, pasty or viscous 'insulating-substance which is rendered temporarily liquid by heating or by means of a solvent. The condenser is then inserted in a protective casing j with a filling of insulating-material k. Reference has been directed by the Comptroller to Specifications 13135/09, 24084/10, 2701/12, 105,333, and 118,090.
Patent GB-1445962-A (GB)
Title: Method of and device for controlling a weaving loom
IPC: D03D47/30
Filed: 1975-02-18
Abstract: 1445962 Stop motions NISSAN MOTOR CO Ltd 18 Feb 1975 [7 March 1974 20 May 1974] 6818/75 Heading DIE A jet loom has means to monitor the length of fabric woven, means to monitor the weft picks inserted, means to store a record of defective picks inserted and means to stop the loom when the defective picks exceeds a predetermined number per measured length of fabric. Weft from a package 18 is fed by rollers 20, 22 into a suction storage tube 24 and a picking nozzle 34 which inserts the weft through the shed 40, across sensors 88 and into a twisted warp selvedge shed 66 which is subsequently cut from the fabric by a heater 72. The fabric is withdrawn by a sand roller 82 with a contact 96 cooperating with a fixed contact 98. The picking motion is arranged to produce a signal each pick, a correctly inserted weft bridges the contacts 88 to produce a second signal, the two signals are fed to an electronic circuit which also receives a signal from fabric length contacts 96, 98 and is arranged to stop the loom in the event of the defective picks exceeding the predetermined number per measured length of fabric. Allowance is made for the extra defective picks normally produced on restarting the loom and the fabric produced may be measured by monitoring the amount of weft used rather than fabric produced. A single pivoted contact may replace the contacts 88.
Patent GB-179020-A (GB)
Title: Improvements in lanterns or like fittings for electric lamps
IPC: F21V31/00
Filed: 1921-03-02
Abstract: 179,020. Duncan, D. J. March 2, 1921. Wall lamps; lan - terns, glazing.-- In a water-tight lantern, of triangular or any polygonal shape, for use on bulkheads or the like, interchangeable glass panels a are held in position against the rubber packing-strips c bv means of the metal frames d, which are secured by the bolts e. The back of the frame b is curved or plain and may be treated to enable it to act as a reflector. Fitted into the lantern are one or more electric lamps f, the terminals of which are adjacent to a chamber g, into which may be coiled a spare length of the cable carrying the current to the lamps, this chamber being fitted with a watertight screwed plug h. In a modification, the framework d is made of bent wire with threaded ends.
Patent GB-200545-A (GB)
Title: Improved method of rounding and polishing straight or curved edges or corners of plate glass
IPC: B24B9/10
Filed: 1922-03-09
Abstract: 200,545. Cotterell, F. March 9, 1922. Disc apparatus; wheels.-A plate of glass 14, the edge of which is to be rounded, is rested on a wooden slab 13 on a horizontal table 12, and, together with the slab, are moved so that the edge of the glass is kept in contact with a peripheral groove 1 in a grinder 2'. The grinder is provided with a flanged socket 4 detachably secured to a vertical spindle 5, and may be replaced by a similar wooden disc for polishing the edges of the work. Specifications 20473/89 and 2034/95 are referred to.
Patent GB-430766-A (GB)
Title: Improvements in or relating to apparatus for cutting tobacco and the like
IPC: A24B7/06
Filed: 1934-03-06
Abstract: 430,766. Cutting tobacco &c. PODMORE, A., 58, Holborn Viaduct, London. March 6, 1934, No. 7148. [Class 5 (i)] A machine for cutting tobacco and the like into strips in which the material is fed between a series of overlapping and interdigitated disc cutters 5, 6, arranged on parallel shafts 7, 8, is provided with cleaner or scraper elements 15, arranged between successive cutters, on each shaft, and rotated at the same speed as the cutters. Each scraper element consists preferably of a circular disc slightly less in diameter than the cutters and mounted eccentrically thereto so that its periphery extends beyond the peripheries of the cutters at a position away from the cutting zone. The discs have large central apertures through which the shaft 7 or 8 passes and are maintained in their eccentric position relatively to the cutters by coupling bars 17 which pass through apertures 18 in the disc cutters and are supported at their ends in rotary-rings 19 arranged eccentrically to the shafts 7, 8. These rings also the scraper elements may be driven by spur gearing at the same rate as the cutters or the engagement of the disc cutters with the bars 17 may be utilized to drive the scrapers. The disc cutters are splined to their shafts and have a certain degree of longitudinal freedom being clamped up against a stop 12 by a spring 13 and nut 14.
Patent GB-124098-A (GB)
Title: Improved Wheeled Stand or Carrier for Dolls and other Toys.
Inventor: THORNHILL THOMAS ARCHIBALD CAM
IPC: A63H3/50
Filed: 1918-04-29
Abstract: 124,098. Thornhill, T. A. C. April 29, 1918. Mechanical toys.-A wheeled carrier for dolls &c. is constructed so as to hold the doll in an upright position, and may be fitted with mechanism for giving movement to the limbs. In the arrangement shown in Fig. 1. the body of the doll is held by an adjustable clip C, and its feet rest on a bracket F fixed to the back A. A socket D serves for the insertion of a stick by which the carrier is pushed. In a modification, the bracket F is dispensed with and the arms and legs are actuated through rods P<1>, P<3> by cranks N, N' on the axle of the wheels G. The rods carry clips R', R<3> adapted to engage the limbs of the doll.
Patent GB-1487923-A (GB)
Title: Face commutator
IPC: H01R39/06
Filed: 1974-02-16
Abstract: 1487923 Commutators LUCAS ELECTRICAL Ltd 2 Jan 1975 [16 Feb 1974] 7180/74 Heading H2A [Also in Division B3] A planar commutator comprises a plurality of segments 12 and a moulded synthetic resin support body 11, each segment 12 being keyed into the body 11 at the radially outer region by means of a pair of rearwardly extending circumferentially divergent integral projections 17a, and at the radially inner region by means of a rearwardly extending lug 18a having an undercut surface 22. The projections 17a and the lug 18a define walls of a channel 16 formed in the rear face of each segment 12. Each segment has a radial slot (not shown) for receiving a connecting wire. The segments are formed by division from an annular grooved conductive body, to which synthetic resin has been moulded (Division B3).
Patent GB-579049-A (GB)
Title: Improvements in or relating to the manufacture of air-cooled vapour electric arc converters
Filed: 1941-06-06
Abstract: 579,049. Metal vapour converters. GENERAL ELECTRIC CO., Ltd., and PITCHER, R. M. June 6, 1941, No. 7182. [Class 39 (i)] The metal parts of an air-cooled vapour converter which operate at high temperatures, e.g. anode side arms, or internal cooling tubes, are coated with vitreous enamel for protection against atmospheric attack. The enamel may have a rough dark surface or a white glossy surface depending on the operating temperature. Coatings of copper, aluminium, chromium and rhodium are stated to be unsuitable.
Patent GB-398236-A (GB)
Title: Improvements in or relating to hydraulic brake operating systems
IPC: B60T11/228
Filed: 1932-03-10
Abstract: 398,236. Hydraulic brakes. PAYNE, M., 50, Hook Road, Surbiton, Surrey. March 10, 1932, No. 7214. [Class 103 (i).] In a hydraulic transmission system for brakes the pressure under which the liquid in the system is normally maintained to prevent leakage at the cup-washers, is produced in a chamber to which the rear face of the master piston is exposed and from which liquid is supplied to the system to compensate for leakage. In one arrangement, Fig. 2, a chamber 3 at the rear of the master piston 4 communicates with a liquid reservoir 11 through a pair of spring-pressed oppositely acting valves 13, 14 and also with the cylinder 15 of a spring- pressed piston 16 which normally maintains the liquid in the transmission pipe lines connected at 2 under a pressure which is limited by the spring of the valve 14. The piston 4 is operated by a pedal shaft 8 carrying a cam 9 so shaped as to give a relatively quick initial movement to the piston and a high mechanical advantage at the final stage. When the piston is moved to apply the brakes, the port 7 which normally connects the chamber 3 to the forward part of the master cylinder 1 and the pipe lines is closed and after the piston 16 reaches the stop 16c liquid, is drawn into the chamber from the reservoir through the valve 13. During the return movement of the piston 4 effected by the pressure of the liquid in the pipe lines assisted by the spring 6, the liquid in the chamber 3 is compressed and when this pressure reaches the value determined by the spring of the valve 14, the excess liquid is returned to the reservoir 11. In a modification, Fig. 1, there is liquid on both sides of the piston 16, and ports 22, 23 are connected by the pipe 12 to the reservoir 11. Normally the port 22 is covered by the piston. When the master piston 4 is moved to apply the brakes, the piston 16 is moved by the spring 16a until it reaches the stop 16c, further movement of the piston 4 draws liquid into the chamber 3 from the reservoir through port 23 and past the cup-washer of piston 16. During the final part of the release movement of the piston 4 the piston 16 uncovers the port 22 to permit return of the excess liquid to the reservoir.
Patent GB-736686-A (GB)
Title: Method of roasting sulphidic ores
IPC: C22B1/10
Filed: 1952-03-20
Abstract: A turbulent layer of sulphide ore is cooled indirectly whilst being roasted with a gas containing oxygen by traversing a part of the cooling elements with a gaseous or vaporous coolant, e.g. air or superheated steam, and the other part which is not directly connected to the first part of the cooling elements by a liquid coolant, e.g. water, or a salt melt, molten metal, high boiling oil or other compound not having a substantial vapour pressure at high temperature.  By varying the velocity of the coolant gas, the degree of cooling is readily controlled.  In the example, zinc blende, a copper ore, and pyrrhotite are roasted at 900 DEG  C., 700 DEG  C. and 850 DEG  C. respectively, using water as liquid coolant and air as the gaseous coolant.  The roasting gases are passed to a sulphuric acid plant.  When using air as the coolant, after being heated in the turbulent layer, it may be introduced into the furnace above the layer for after-combustion or used to dry the ore.  Optimum velocity for the roasting gas is stated to be 0.6-1.5 metres per second, measured above the bed; with this velocity, roasted material may be withdrawn from the bed rather than recovered from the gases.