baber/WOPTO huggingface dataset:
Patent GB-910970-A (GB)
Title: Improvements in or relating to electric circuits for demodulating trains of amplitude modulated pulses
Inventor: ROUS RONALD FRANK
IPC: H03K9/02
Filed: 1960-02-09
Abstract: 910,970. Pulse modulation circuits. GENERAL ELECTRIC CO. Ltd. Feb. 9, 1961 [Feb. 9, 1960], No. 4543/60. Class 40 (5). In a circuit for demodulating amplitudemodulated pulses, a low-pass filter has a capacitance across its input circuit which is charged through a rectifier by each incoming pulse to a voltage determined by the amplitude of the pulse and upon termination of the pulse discharges through the filter during an interval of time which is longer than the duration of the pulse but which does not exceed the interval of time between succeeding pulses in the train. As shown, in a time division multiplex system the required channel pulses at the input circuit 3 are selected by a gating circuit 2 peculiar to that channel and controlled by gating pulses via a transformer 22, and supplied through a stepdown transformer 26 and rectifier 5 to the filter 6 forming the demodulating circuit. At the termination of each pulse from the transformer 26 the capacitor 12 is charged to a voltage proportional to the pulse amplitude and starts to discharge at a rate determined by the values of the capacitor 12 and the characteristic impedance of the filter. Since the characteristic impedance is chosen to match the load 7, e.g. a transistor amplifier, the capacitor 12 is arranged to have a somewhat larger value than the calculated value for the shunt arms of the constant K#-section filter 10, so that the rate of discharge is as slow as possible and the pulses are lengthened before demodulation to increase the low frequency energy content. A similar arrangement is provided for each channel of the system.
Patent GB-271545-A (GB)
Title: Improvements in or in connection with the removal or separation from gaseous fluid of material suspended therein
IPC: B01D45/02
Filed: 1926-02-17
Abstract: 271,545. Portham, R. S., and Tangential Dryers, Ltd. Feb. 17, 1926. Separators.-Suspended particles such as oil and water are removed from steam by changing its velocity of flow, causing it to impinge on a body having a multiplicity of points, and finally giving it a rotary motion. The steam passing down a tube 12, which may be a Venturi tube, impinges on a mass 33 of thin pointed wires set vertically suspended matter adheres to the wires and falls into the funnel 34 which is adjustable by a screw 36. The steam passes laterally out through the wires and upwards between cones 22, 23 separated by a ring of vanes 14 which give it a rotary motion. Further material is thus separated with the aid of ribs 20 in the wall. In a modification, the steam after impinging on the wire separator passes through a tube to a second wire separator and thence laterally through a series of vertical scroll plates to which the suspended matter adheres, afterwards falling to the bottom of the casing where it is removed by a pivoted discharge pipe, the adjustment of which varies the depth to which the separated material can collect.
Patent GB-322950-A (GB)
Title: Improvements in or relating to machines for honing pistons and other machine parts
IPC: B24B33/04
Filed: 1929-02-11
Abstract: 322,950. Talbot, Ltd., C., and Knell, P. E. Feb. 11, 1929. Rollers, spindles, and the like, treating ; spindle mountings ; tools.-Apparatus for grinding cylindrical surfaces, for example, that of a piston, consists of three grinding-strips 14 in grooves 13 in a casing 11, the strips being movable radially by springs 16 and pins 18 operated by the conical interior of a sleeve 19, which screws in a sleeve 2C, and is rotated to an extent limited by adjustable stops 24, by a handle 25. The piston 10, which is shown assembled to its conrecting-rod 27, is rotated and reciprocated in contact with the strips 14 by means of a rod 33 pivotally coupled by a connecting-piece 35 to the big-end of the rod 27. The rod 33 is reciprocated, through a sleeve 30, by a crank 28 and a rod 29, the sleeve being rotated by gearing 31, 32 ; the sleeve is connected to the rod 29 by an anti-friction swivel joint, Fig. 5, which includes a rod 40 secured to the sleeve and rotatable in rotation to the rod 29. In order to maintain the rod 33 in raised position, with the work out of contact with the grinding-strips, the rod carries a pin 39 adapted to co-operate with a slot 41 and holes 52, 53 in the sleeve.
Patent GB-378796-A (GB)
Title: Improvements in weighing scales
IPC: G01G21/00
Filed: 1932-02-16
Abstract: 378,796. Bearings for weighing- scales. TOLEDO SCALE MANUFACTURING CO., Monroe Street, Toledo, Ohio, U.S.A. Feb. 16, 1932, No. 4629. Convention date, Feb. 16, 1931. [Class 143.] A weighing-scale pivot secured in a cylindrical bore in the scale lever or other element comprises a knife-edge, and a body portion adapted to enter the cylindrical bore and having a thrust point coincident with the apex of the knife-edge and with the axis of the bore. As shown in Figs. 3 to 5, a knife-edged pivot 5 suitable for bridging the forked end of a lever 3 and resting with its central portion on a fixed bearing 9, is secured at its ends in cylindrical bores 20 by means of grooved retainers 21 and clamp plates 24 locked by screws 26. The retainers 21 have conical thrust portions 23 to minimize friction against the bearing 9. The arrangement is such that the points of the thrust portions 23, and the knife-edge of the pivot 5 all coincide with the axis of the cylindrical bore 20 thus ensuring a constant position of the knife-edge and thrust points relative to the lever and to other knife-edges during adjustments or installation. In the modification, Fig. 6, the pivot is of tapered form for driving into a tapered seating, and is formed with thrust points 23a coincident with the knife-edge and with the axis of the taper.
Patent GB-1219383-A (GB)
Title: Improvements relating to fibre-reactive heavy metal-containing formazane dyes and their use
IPC: C09B62/20
Filed: 1969-01-28
Abstract: 1,219,383. Reactive metallized formazane dyes. J. R. GEIGY A.G. 28 Jan., 1969 [29 Jan., 1968], No. 4683/69. Heading C4P.  The invention comprises dyes of formula wherein R is a monovalent organic radical, A is the radical of an ortho-linked diazo component, B is the radical of a diazo component free from metallizable groups, X is a metallizable group, Z is an acid water-solubilizing group, Y is a fluoropyrimidyl radical, R<SP>1</SP> is H or alkyl, Me is a metal of At No. 24-29, or is 1-5 and n is 1 or 2. The dyes are prepared by condensing a corresponding amino-formazane dye with a poly-fluoropyrimidine. They may be used to colour cellulose fibres by the usual reactive dyeing processes in brown, blue and grey shades.
Patent GB-734922-A (GB)
Title: Welded double glazing unit
IPC: C03B23/24
Filed: 1951-02-26
Abstract: 734,922. Glass blocks. PITTSBURGH PLATE GLASS CO. Feb. 26, 1951 [March 14, 1950], No. 4696/51. Drawings to Specification. Class 56. In the method of forming hermetically sealed double glazed units generally as in Specification 665,977, before the weld is completed the air pressure in the interplate space is abruptly increased in order to assist the shaping of the inner face of the weld. This increase of pressure is effected for example by admitting air at approximately 15 lbs. per square inch through at least one pore hole, or by abruptly decreasing the spacing between the plates.
Patent GB-695114-A (GB)
Title: Improvements in lighting fittings
Inventor: WALDER ALAN JAMES
IPC: F21V17/20
Filed: 1950-02-24
Abstract: 695,114. Hinges. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 9, 1951 [Feb. 24, 1950], No. 4865/50. Class 65 (ii) [Also in Group XI] In a lighting fitting the carrier for a transparent bowl 2 is hinged to a canopy 1 by means of co-operating elements adapted to be separated from one another (so that the bowl can be completely removed) by relative movement of these elements along the axis of pivotal and abutment surfaces prevent such separation except when the carrier has been swung past'the position in which it would hang due to gravity. The carrier consists of a wire ring 7 of circular section extending around the undersurface of a flange 5 on the rim of the bowl. The ends of the wire are cranked to pass through vertical slots 9, 10 in a skirt 4 on the canopy and to form hinge pins 7a, 7b which enter a bore in a lug 8 on the outside of the skirt. External projections 12, 13 are formed on the outside of the skirt, their upper surfaces 12a, 13a being clear of the bore in the lug 8 and their opposed side surfaces 12c, 13c being aligned with the edges of the vertical slots in the canopy. These projections and the sides of the vertical slots prevent the hinge pins 7a, 7b from being withdrawn from the bore except when the ring has been swung to a position 7<SP>1</SP> in which the whole of the ring is above the upper surfaces of the projections. Specification 695,190, [Group XI], is referred to.
Patent GB-291132-A (GB)
Title: Improvements relating to handkerchiefs or the like
IPC: A41B15/00
Filed: 1927-02-21
Abstract: 291,132. Jacoby-PirkÚ, Ltd., A., and Jacoby, J. Feb, 21, 1927. Pocket harvcdkerchiefs or the like are ornamented with patterns or representations embroidered thereon so as to permit cutting out, assembling, and connecting together to form a new ornament or article. Embroidering allows of each individual pattern being cut adjacent the embroidered outline. The handkerchief may be in sets so that the patterns may be used conjointly. The parts of dolls clothes or of flowers, birds, butterflies, or animals may be represented by embroidery. A series of figures representing Bowers, butterflies, or of birds or the like may be embroidered on handkerchiefs and the figures cut out and superposed to form a rosette or other decoration.
Patent GB-580887-A (GB)
Title: Improvements in or relating to television transmitting apparatus employing cathode ray tubes
IPC: H04N5/228
Filed: 1944-03-16
Abstract: 580,887. Television; cathode ray tubes. LUBSZYNSKI, H. G. March 16, 1944, No. 4889. [Classes 39 (i) and 40 (iii)] In cathode-ray apparatus employing a tube including a screen which emits electrons when scanned by a cathode-ray beam and an electrode which can be pulsed to collect electrons released from the screen when the electron beam is not operating to develop signals, the signals derived from scanning the screen are applied to a further screen which is subsequently scanned at a slower rate to re-develop the signals for transmission so that the pulses can be applied to the electrode for a large proportion of the scanning time of the further screen to increase the sensitivity of the tube. As shown the invention is applied to a television transmitting arrangement in which the image projected on the screen 2 of the tube 1 is scanned and the signals are applied from resistance 13 and amplifier 18 to a further screen 20 in a tube 19 which is subsequently scanned at a slower rate to produce signals for transmission. The signals derived from the rapid scanning of the screen 2 may be applied to the screen 20 scanned by an unmodulated beam or the scanning beam of the tube 19 may be modulated at its cathode 21. The screen 20 may be double-sided and separate scanning beams employed for applying the signals derived from the first screen and for re-developing the signals. The pulses are applied from a source 17 to the electrode 5 and in the second tube pulses may be applied to the electrode 24 during the period the signals, derived from the tube 1, are applied to the screen 20. The screen 2 may be photo-sensitive or of the type which carries an electron image of the subject for transmission. The Provisional Specification also describes an arrangement for reducing " tilt " by utilizing different scanning sequences for the two cathode-ray tubes, for example left to right in one case and right to left in the other case.
Patent GB-764942-A (GB)
Title: Improvements in forced flow tubulous boilers with radiantly heated vapour generatingmeans
IPC: F22B37/12
Filed: 1955-02-18
Abstract: 764,942. Forced flow steam boilers. BABCOCK & WILCOX, Ltd. Feb. 18, 1955 [Feb. 18, 1954], No. 4895/55. Class 123(2) In a forced flow steam boiler having radiantly heated steam generating tubes including at least two series-connected lengths through which the working medium flows respectively upwardly and downwardly, the upflow length is of larger internal diameter than the downflow length so that the flow velocity in the latter, where the steam bubbles tend to rise, is increased, the diameters of both lengths being such that the respective flow velocities are sufficient to prevent the formation of large steam bubbles which adhere to the tube wall and cause local overheating of the tube metal. In an example, the boiler furnace is lined with tubes having upflow and downflow limbs of bore diameters of 30-38 mm. and 25-32 mm. respectively. The end portions of the upflow limbs are swaged to the diameter of the downflow limbs, formed into return bends and welded to the ends of the downflow limbs. The upflow velocity in this tube system is about 10 metres per second whilst the downflow velocity is about 14.4 metres per second.
Patent GB-556782-A (GB)
Title: Improvements in or relating to rod end bearings for aircraft controls and other purposes
IPC: F16C11/06
Filed: 1942-04-17
Abstract: 556,782. Ball points. HICKLING. F. O. April 17, 1942, No. 5117. [Class 65 (ii)] A ball joint for linkwork in aircraft controls &c. comprises a hard metal ball 5 fitted non- rotatably as by a press fit, in a hole 4 in one member 1 of the linkwork, and connected to cupshaped sockets 6 on another member either through balls 7 or by directly engaging spherical surfaces on the sockets. The cups 6 may be connected to the forked ends 11 of a lever by a bolt 10 passing through the ball 5. In another form, the cups are connected to 11 by -spring clips and pins engaging 6 and 11, or by the pins only. The length of the rod 1 may be adjusted by screw and nut mechanism.
Patent GB-1415393-A (GB)
Title: Attaching devices
IPC: H02G3/06
Filed: 1973-02-01
Abstract: 1415393 Releasable fastenings FIBO AS 1 Feb 1973 [22 Aug 1972] 5162/73 Heading E2B A flat metal fastener 1 for securing a conduit 5 into a plastics junction box 4 has a down-turned lug 6 which may be forced through the wall of the box and bent over, to secure it, at hole 7, barbs 2, 3 securing the conduit. The fasteners may be supplied in a continuous strip (Fig. 2, not shown).
Patent GB-266737-A (GB)
Title: Improvements in or relating to registering mechanism for telephone call meters
IPC: H04M15/10
Filed: 1927-02-24
Abstract: 266,737. Telefonaktiebolaget L. M. Ericsson, (Assignees of Olson, A. H.). Feb. 27, 1926, [Convention date]. Zeroizing-mechanism.-In registering mechanism of the telephone call meter type the numeral wheels are mounted in a movable frame and a resetting of the wheels to zero is effected by a movement of the frame causing cam members carried by the wheels to engage stationary resetting members. As shown in Figs. 1, 2 and 4 the numeral wheels are mounted on a shaft 1 and the units wheel 2 is actuated in a step by step manner by a pawl 9 carried by the armature 7 of an electromagnet 6. Each complete rotation of the units wheel 2 is transmitted to the next higher wheel and so on by a set of transfer pinions 14 with alternately long and short teeth that co-operate with a tooth 20 and tooth space 21 on the numeral wheels in known manner, each tooth 20 being formed on an eccentric or heartshaped cam disc 19. The shaft 1 of the numeral wheels is mounted in the arms 26, 27 of a frame 22 pivoted on a shaft 25 and a second shaft 33 carries a. plurality of discs 32. The frame 22 is provided with a sleeve 30 for the reception of an operating pin the insertion of which causes a rocking of the frame to disengage the numeral wheels from the transfer pinions and the ratchet wheel of the units wheel 2 from the actuating pawl 9, and retaining pawl 13. The pawl 9 then bears against the pawl 13 which in turn bears against a fixed pin 29 to hold them in position. On continued movement of the frame the discs 19 are pressed against the stationary discs 22 and are rotated thereby until the recesses 34 engage the discs 32.
Patent GB-245308-A (GB)
Title: Improvements in or relating to dobbies for looms for weaving
IPC: D03C1/04
Filed: 1925-02-26
Abstract: 245,308. Place, J. H. Feb. 26, 1925. Dobbies.-An open shed dobby has double armed peg levers b<1>, b<2> with hubs loosely mounted on an eccentrically-mounted barrel a driven by chain gearing &c. from the crank shaft. The arms b<1> of the peg levers are controlled by a chain of pegged lags d, e on a barrel c, whilst the arms b<2> are formed with daggers b<3> and with projections b<4>, which engage notches f<2> on jack levers f<1> mounted on a fixed shaft &c. g when the corresponding arms b<1> are lowered, whereby as the barrel a rotates the jack levers are rocked and the corresponding healds are raised. Spring controlled locking-levers i then engage the notches f<3> of these jack levers and retain them in their raised positions until the arms b<1> of corresponding peg levers are raised, whereupon the daggers b<3> on the lowered arms b<2> engage beneath projections i' on the locking-levers ! i and disengage these levers from the notches f<3>, thus enabling the jack levers to move to their lowered position. This movement may be aided by springs m. The levers i engage notches f<4> in the lowered jack levers, a fixed stop bar l being also provided for these lowered levers. A roll k acts as a stop for the arms b<2>. The barrel c may be provided with a ratchet wheel engaged by a pawl, the hub of which is mounted on the barrel a, or the barrels a, c may be so geared together that if the loom is turned back the correct lag will always be in position. The jack levers may be connected to the shafts or cords by cords passing over pulleys &c., or they may be connected by hook joints &c. to streamers connecting them to pairs of co-operating levers for giving a straight lift to the healds, or the jack levers may be bent and connected directly to the healds.
Patent GB-122960-A (GB)
Title: Improvements in or connected with the Manufacture of Containers or Boxes of Cardboard, Paper, Woven Fabric or other suitable Material.
Inventor: DRYSDALE HENRY
IPC: B65D3/20
Filed: 1918-03-27
Abstract: 122,960. Drysdale, H. March 27, 1918. Boxes &c. made from special blanks; lined boxes etc.; lids and covers; apparatus f o r making boxes.. A box or container for jam, coffee, &c., is made from a strip 1, Fig. 1, nf cardboard, paper, woven fabric, &c., which is cut to form a number of tabs, as shown, score lines 20, 21 being provided, which terminate on a line A-B. The strip is wound on a mandrel with the tab part projecting beyond the mandrel, cement being applied to its inner face before or during the winding except on the part forming the first convolution; this part may be coated on its outside. During the winding, the tabs are folded down or inwards, by hand or otherwise, about the line A-B, their creased corners being doubled over on themselves and the tabs overlapping each other to form a bottom. When the winding is sufficient the mandrel and receptacle are placed in a mould, and the layers of the bottom are compressed against the mandrel by a plunger, which is shaped to form a projecting rim 15, Fig. 5, with recesses or air channels 17. The bottom 13 thus made may be of a bulging form, as shown, but this may be prevented hy first cutting off portions of the tabs as indicated by the dotted lines at the lower part of Fig. 1. A disk 23 may be connected over the bottom, and the whole receptacle may be waterproofed. For a large box, the tabs may merely form a flange 25, Fig. 6, leaving a hole to be covered by a cemented disk 28. The top may be similar y formed and be closed by a disk-lid 29 or a hinged lid; or an ordinary top may be closed by a flanged lid of metal, paper, &c. Cylindrical, oval, hexagonal, and other boxes may be thus produced, the slits between the tabs being, in some cases cut along inclined lines. A disk of wood &c. may be inserted within the rim 15 for stiffening purposes. The top may. be formed like the bottom, and the box mav be lined with parchment paper. &c., which is first wound on the mandrel. Specification 120,408 is referred to.
Patent GB-470831-A (GB)
Title: Improvements in or relating to fabric ironing appliances
IPC: D06F75/26
Filed: 1936-02-22
Abstract: 470,831. Automatic control systems. BRITISH LAUNDERERS' RESEARCH ASSOCIATION, and RICHARDS, H. W. Feb. 22, 1936, No. 5376. [Class 38 (iv)] [Also in Groups VIII and XIII] Temperature.- In a thermostatically-controlled electric iron the heat-regulating mechanism is constructed or provided with means which compensate wholly or partially, or in certain circumstances over compensate, for the difference between the temperature to which the heat-regulating means is subjected and that existing at the working face of the iron, such compensation operating with a time lag considerably greater than that of the heat-regulating mechanism unprovided with such compensation. This is particularly of value in ironing very wet fabrics when considerable heat is taken from the working face of the iron and the normal heat-regulating mechanism responds to the temperature of the internal mass of the iron rather than to that of the working face. In the iron shown the heat regulating mechanism comprises two elements, one being the sole plate of the iron itself which is formed of an aluminium alloy having a comparatively high coefficient of thermal expansion and the other comprising a bar of material having a much smaller, but not negligible coefficient, such as a bar 1 of " Invar " (Registered Trade Mark) anchored at one end in a recess in the sole plate. A fulcrum 3 for a lever 2 is carried by the sole plate and the short arm of the lever is acted on by the free end of the bar 1 through a knife edge. The other arm is acted on by a spring 4 and, when the bar 1 expands relatively to the sole plate as when a great amount of heat is taken from the sole plate, bears on a spring arm 21 to separate a pair of adjustable contacts 22, 23 and open a relay 6 to close the heating circuit. In another form the main heat-regulating mechanism consists of two elements of different materials of which one has a considerably greater coefficient of thermal expansion than the other and a subsidiary thermostatic element of bimetallic or other known type is positioned not in close proximity to the working face, and the subsidiary element is coupled to a small auxiliary heater in circuit with the main heating element. Specification 397,501, [Group VIII], is referred to.
Patent GB-506940-A (GB)
Title: Improvements in and relating to fitting index for shoes or like articles of footwear
IPC: A43D1/02
Filed: 1938-02-21
Abstract: 506,940. Fitting shoes. MOTT, H. VAN S. Feb. 21, 1938, No. 5378. [Class 17 (iii)] Means for ensuring the fit of shoes &c consist of member: 17, 18 opaque to X rays placed in the upper at the points o greatest width, which when viewed on a fluorescent screen coincide with fixed members 20, provided preferably in the sole, when the fit is good. The members 20 may be replaced by a strip extending across the sole, the ends of the strip forming the gauge marks. The tip of the toe may also be indicated by a member in the cap, or on the sole.
Patent GB-608384-A (GB)
Title: Improvements relating to extensible side supports for sliding drawers and the like
IPC: A47B88/493
Filed: 1946-02-21
Abstract: 608,384. Drawer mountings. HARVEY & CO. (LONDON), Ltd.. G. A., and SHAND, H. Feb. 21, 1946, No. 5472. [Class 52(i)] Arms 8 are pivoted to the sides of a drawer 1 and have rollers 9 on their ends moving in guide channels 2 with upturned inner ends. Stops 10 at the rear of the drawer bear against the arms 8 to support the drawer when withdrawn.