baber/WOPTO huggingface dataset:
Patent GB-575036-A (GB)
Title: Improvements in electrical signalling systems
IPC: H02J13/00
Filed: 1944-02-18
Abstract: 575,036. Signalling over power circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., MACKENZIE, J. F., and JONES, S. B. Feb. 18, 1944, No. 3018. [Class 40 (iv)] In a 3-phase 4-wire network on which high - frequency signal currents are superimposed for operating responding devices R1 ... R3 connected between the phase wires and the neutral wire, the signal currents being applied by way of the power transformer TR, two phases of the signal currents are fed into the neutral wire through tuning condensers QD, QE and a transformer CT of the kind described in Specification 526,039 in which the neutral wire N constitutes a single-turn secondary. To meet special requirements, however, the secondary may be given a number of turns, and an air-gap is preferably provided in the iron circuit. As an alternative, the signal currents may be reapplied across the neutral wire and the phase wires in parallel. A typical 3-phase power load LA ... LC provided with power factor improvement condensers QA ... QC is shown. According to the Provisional Specification, all three phases of the signal currents may be injected into the neutral wire in single-phase form by means of a Scott connection.
Patent GB-931200-A (GB)
Title: Tamper prevention closure of bottles and other containers
IPC: B65D41/48
Filed: 1961-01-26
Abstract: 931,200. Bottle &c. closures. J. KROKER, J. FOX, S. KROKER, and H. REICHEL. Jan. 26, 1961 [Jan. 26, 1960], No. 3102/61. Class 125(3). A tamper proof closure 4 has at least one integral web 9, and a ring 10 adapted to fit a groove in the container neck. The device is preferably of a plastics material, and the ring 10 is inserted in the groove 11 by pressing, shrinking, or elastic contraction. The web(s) has a weakened port 12, and the tab 7 facilitates removal of the cap. Loss of the closure may be prevented by a web which acts like a hinge. In another embodiment, a single web is used in conjunction with a plug or stopper.
Patent GB-1014389-A (GB)
Title: An injector for doses of powder
IPC: G01F13/00
Filed: 1964-08-04
Abstract: 1,014,389. Delivering measured quantities of powder. L. M. D. SABOT. Aug. 4, 1964 [July 25, 1963], No. 31032/64. Heading B8N. A device for dispensing measured quantities of powder, such as magnesium oxide, wherein the powder is adapted to be forced through one or more distribution orifices 5, comprises a rigid stationary blade 7 adapted to rub against a rotatable distribution member 3 in which the orifice or orifices are provided. The distribution member 3 is in the form of a tube mounted in hopper 1, the tube being rotated via a reduction gear 9 by means of motor-driven blower 12; agitator blades 4 are connected to the tube for rotation therewith. The blade 7 is secured to the hopper so that as the tube rotates, the small quantity of powdered trapped in the orifice is forced through the bore of the tube by the pressure of the blade; an adjustable tapered needle 6 is adapted to vary the size of the orifice. As the powder falls out of the end of the tube it mixes with air fed by the blower into a chamber 11. The hopper is also pressurized by the blower via a pipe 15.
Patent GB-1301702-A (GB)
IPC: H01L29/78
Filed: 1970-01-22
Abstract: 1301702 Semi-conductor devices KOGYO GIJUTSUIN 22 Jan 1970 [27 Jan 1969 (2) 1 Dec 1969] 3179/70 Heading H1K An I.G.F.E.T. is formed from a wafer 7 by producing regions 8 and 9 by double diffusion to form an NPN structure, etching a recess into the wafer, growing an insulating film 4 on the walls of the recess, and forming a conductive layer, 5, on the film 4. The layer 5 forms the gate electrode, region 9 the source region, region 8 adjacent the film 4 the channel region, and 7 the drain region. The length of the channel, L, is determined by the thickness of region 8 and the etching angle of the recess. The thickness of region 8 may be accurately controlled by the diffusion processes to be less than 1 Á. A further, thicker insulating film 6 may be formed on the region 9 surface, prior to etching, in order to reduce the gate to source capacitance.
Patent GB-151522-A (GB)
Title: Improvement in internal combustion engines
IPC: F01L5/06
Filed: 1920-02-03
Abstract: 151,522. Dewdney, G. F. Feb. 3, 1920. No Patent granted (Sealing fee not paid). Valves.-In a four-stroke-cycle engine having opposing pistons d, e of two diameters in each cylinder a, the two co-axial combustion chambers s, t are controlled respectively by piston valves l, r driven from a half-speed cam shaft o, and having multiple ports co-operating with inlet and cutlet ports m, n respectively in a removable valve casing p.
Patent GB-498372-A (GB)
Title: Improvements in or relating to the production of agents containing magnesium oxide and calcium carbonate from magnesiumcontaining substances
IPC: C04B2/10
Filed: 1938-02-03
Abstract: <PICT:0498372/III/1> A reagent for softening and de-acidifying water and consisting of magnesia and calcium carbonate is obtained by heating dolomite or mixtures containing magnesium and calcium compounds in an atmosphere containing carbon dioxide, the relation between the temperature and the part pressure due to carbon dioxide being such as to correspond to a point on the diagram lying within the area A B C D, and preferably within the area E F G H.  Heat treatment under the specified condition may follow a period of heat treatment at higher temperature.  A rotary furnace through which gas containing carbon dioxide is passed in the same direction as the material under treatment may be used.
Patent GB-993105-A (GB)
Title: Decoder-encoder for beacon system utilizing a single delay line
IPC: G01S13/78
Filed: 1964-01-27
Abstract: 993,105. Transponder apparatus. BENDIX CORPORATION. Jan. 27, 1964 [Feb. 8, 19631. No. 3405/64. Heading H4L. A transponder is provided with a single tapped delay line which decodes a group of interrogating pulses of one polarity and also provides a different coded group of reply pulses of the opposite polarity. As shown in Fig. 2, in an air traffic control system, the interrogating pulses 31, 32 after detection in the transponder are supplied via a video amplifier 16 to a delay line driver 33 which provides an additional negative pulse 35 derived from the output of the tapped delay line 34 when an interrogating signal is recognized. The output of device 33 is also supplied to a coincidence gate 37 and when the correct interrogating signal as determined by the setting of a selector switch 38 is received the pulses 31, 32 coincide at gate 37 and a pulse is supplied via a delay 41 to a trigger a pulse generator 43 and supply the negative pulse 35. Application of the negative pulse 35 to the delay line 34 provides coded negative output pulses in accordance with the setting of reply code selector switch 44, the two output circuits of the delay line being isolated from each other by oppositely poled diodes, and the coded pulses are supplied via a limiter 45 to a coincidence gate 47. Pulse 35 also triggers a generator 29 to operate an oscillator 46 which generates shaped pulses which are passed by the gate 47 to a modulator in accordance with the reply code. The generator 29 also supplies a signal blocking the amplifier 16 when the reply signal is being transmitted. Provision may be made, Fig. 3 (not shown), for automatically switching the reply from an identification signal to a p.c.m. signal representing the altitude of the aircraft in accordance with the type of interrogation signal received.
Patent GB-575988-A (GB)
Title: Improvements in or relating to vibration suppressing mountings
IPC: F02B77/14
Filed: 1943-03-02
Abstract: 575,988. Mounting carburetters and engine starters. UNITED AIRCRAFT CORPORATION. March 2, 1943, No. 3416. Convention date, Nov. 13, 1941. [Classes 7 (iii) and 7 (v)] [Also in Group XXXII] A vibration-suppressing mounting for securing a supported body to a supporting body and particularly for securing, on an aircraft engine, accessories such as the generator, magneto and carburetter, comprises substantially parallel convex and concave surfaces on one body, an annular resilient cushion between the concave surface and a convex surface on the other body and friction means secured to the other body and bearing on the convex surface of the first body. Fig. 3 shows an engine starter 30 having a pedestal 84 formed with a curved annular flange 90 and a boss 92 which receives the outer race 94 of the starter end bearing. An aperture 96 in the engine crank-case through which the starter projects, is engaged by an annular pad 102 having a convex surface opposed to the concave surface of the flange 90 and separated therefrom by a rubber or like cushion 106. A frusto-conical friction member 108 of spring steel &c., having a lining 110 of friction material, engages the other side of the flange 90 and the parts are clamped together by cylindrical nuts 112 threaded on studs 100 screwed into the crank-case. The recesses in which the nuts 112 engage are larger than the nuts to permit slight rotational movement of the flange 90. Tubular spacer members 118 having diagonal ends are interposed between the heads 116 of the studs and the member 108 to press the latter firmly against the flange 90. Fig. 5 shows a mounting for a carburetter 26, a flange 128 on which is secured by screws 130 to a flange 126 on one part 122 of an adaptor which is formed also with a curved annular flange 132, while the other adaptor part 124 has a flange 134 adapted to be screw connected to the engine crank-case. A resilient cushion 140 is interposed between the flange 132 and a convex boss 138 on the adaptor part 124, and a metallic friction member 142, secured to the flange 134 by screws 136, has a lining 144 of friction material in contact with the other side of the flange 132. The member 142 is so shaped that on tightening the screws 136, the necessary pressure is applied to the friction material. A mounting for a generator is also described (see Group XXXII).
Patent GB-179593-A (GB)
Title: Process and means for producing stencils for copying documents, printed matter, drawings, photographs and the like
IPC: G03F7/12
Filed: 1921-01-28
Abstract: 179,593. Sterck, L., and Roneo, Ltd. Jan. 28, 1921. Stencils.-A stencil for use on a rotary or flat frame duplicator is produced photographically from a sheet of metal. A sheet of brass, copper, zinc, or other metal, coated with a sensitizer such as albumen, bitumen, or enamel, is exposed under a photographic positive of the matter to be reproduced and is subsequently developed and acid etched to form a stencil. If enamel is used, the plate is heated until the enamel turns dark brown unless a cold enamel etcher is used, in which case no heating is required. If parts of the metal sheet are etched through more quickly than others, the sheet is removed from the acid bath and the etched-through parts protected before proceeding. The stencil, if too thin, may be strengthened by applying flannelette, felt, or velvet thereto. Reference has been directed by the Comptroller to Specifications 5402/96, 10073/99, 14374/99 and 3988/11,
Patent GB-395057-A (GB)
Title: Improvements in and relating to aeroplanes
IPC: F02B75/28
Filed: 1932-02-05
Abstract: 395,057. Speed governors. DAIMLER-BENZ AKT.-GES., Untertiirkheim, Stuttgart, Germany. Feb. 5, 1932, No. 3463. Convention date, Feb. 6, 1931. [Class 57.] A centrifugal governor for use on aeroplane engines, preferably Diesel engines, to prevent speed from falling below a predetermined limit consists of a governor b the sleeve d of which is connected by a lever e, adjustable in a notched plate g, to the regulating rod f. For no load running the lever e is in position g<2> and for full load in position g. Specification 355,325 is referred to.
Patent GB-915575-A (GB)
Title: Making resinous particles
IPC: C08L63/00
Filed: 1959-01-30
Abstract: A method of making a resinous powder which is stable at room temperature and has an initial flowout at 300 DEG F. of 1,5 to 5 inches comprises mixing a 1:2-epoxy resin averaging more than one 1:2-epoxy group per molecule and a room-temperature-solid latent heat activatible epoxy reactive hardener in inter-reactive proportions, the mixing being conducted at a temperature for a time just sufficient to provide a homogeneous fusible mixture without converting the mixture to a thermoset infusible state, cooling the mixture to room temperature, and then converting the solid product to particles having a size within the range of 40 to 325 mesh U.S. standard sieve.  The mixture may also contain amine type catalytic hardeners and flow inhibiting fillers.  The examples describe the manufacture of powder from an epoxide resin derived from bisphenol-A and epichlorhydrin and:- (1) chlorendic anhydride and dimethyl dioctadecyl ammonium bentonite; (2) isophthalyl dihydrazide, a boron trifluoride-ethylamine complex, dimethyldioctadecyl ammonium bentonite, iron oxide and mica and (3) phthalic anhydride, the resultant particles being coated with 2:4:6-tri(dimethylaminomethyl) phenol.
Patent GB-553219-A (GB)
Title: Improved device for feeding greasy or viscous material
IPC: F16N9/04
Filed: 1942-03-17
Abstract: 553,219. Insecticide &c. distributers; hoppers &c. RICHMAN, W. D. W. March 17, 1942, No. 3535. [Class 6 (i)] [Also in Group XXX] Greasy powders or viscous liquids such as insecticides or fungicides contained in a hopper or storage vessel e are fed through a passage b in the base a of the hopper by a rotating barrel c<SP>1</SP> formed with radial slots fitted with one or more blades d which are protruded and retracted into the annular space between the barrel and the walls of the passage b by engagement with a cam f mounted on an angularly adjustable shaft g. The shaft g carries a shroud h to regulate the feed within maximum and minimum limits and is secured in its adjusted position by a nut k on a stud k<SP>1</SP> passing through a slot in a graduated quadrant i. The hopper e is preferably connected to the base a by a flexible diaphragm l and is pivoted at l<SP>1</SP> to arms o<SP>1</SP> carried by a plate o secured to the base a. The lower part of the hopper is pressed against a buffer p on the plate o by a spring n. The hopper is shaken to cause the material to settle in the feed opening by the engagement of a cam on the shaft c with a projection l<SP>2</SP> carried by the hopper. The apparatus may be mounted over a belt conveying seed grain to a sacking point.
Patent GB-328918-A (GB)
Title: Improvements in instruments for recording operation of electric devices
IPC: G07C1/08
Filed: 1929-02-02
Abstract: 328,918. Cool, H. R. Feb. 2, 1929. Particular operation recorders.-In apparatus of the type comprising a clock driven chart and a magnetically actuated stylus for recording the operation of electrical devices such as the electric motor of a refrigerating system operating under automatic control a substantially O-shaped magnet is provided which occupies the major portion of the casing. Separate styluses are employed to record the time the motor is in operation and the total time during which system may be set in operation. In the form shown, Figs. 1 and 2, the recording apparatus is contained within a casing 16 mounted on an upstanding plate 12 secured to a base member 10. The casing 16 has a pivoted cover in which is arranged a clockwork mechanism 22 driving a serrated disc 23 on which is held a record-disc 20 with an aperture passing over the central hub 24 and adapted to be pressed against the disc by spring arms 26, 27. The casing 16 contains a flat rectangular O-shaped electromagnet 35 of laminated construction with pole pieces 37, 38 and adjustably secured to the casing by a brass plate 44. The plate 44 carries an auxiliary plate 53 with perforated lugs 56, 57 forming bearings for an armature 49 under the control of a spring 60 and carrying a stylus 50 co-operating with a portion of the record-disc behind which is arranged a spring backing member 64, Fig. 6. Adjacent the stylus 50 is a second stylus 61 on a. spring arm 62 adjustably secured to the plate 53. The pole pieces of the electromagnet carry coils 39, 40 electrically connected through conductors 73, 74 and resistance coils 77, 78 to the main supply lines. The coils 77, 78, which are mounted in a housing 83 on a platform 80 carried by the base member 10, prevent the coils 39, 40 being subjected to the full main voltage, one or both coils respectively being in circuit when the voltage is 110 or 220 volts. The record produced by the styluses 50, 61 is shown by the thick and thin line records 92, 93, Fig. 2.
Patent GB-1012937-A (GB)
Title: Device for cooling and muffling hot gas jets
IPC: B64F1/26
Filed: 1964-01-28
Abstract: 1,012,937. Exhaust silencer. K. SEIFERT. Jan. 28, 1964, No. 3584/64. Heading FIB. A silencer for the jet from a jet engine or rocket 43 comprises a rotatable tube 2 with means for maintaining an annular layer of liquid on the inner surface thereof. The tube 2, which may be of flexible material, is supported by tubular members 5, 6, engaging rollers 9 in a frame 8 and is rotated by a motor 3 through gearing 4, 5<SP>1</SP>. The end of the tube 2 is provided with liquid seals 14, 17, and a supply of liquid coolant is fed by a pump 15 through the seal 14 on to the interior surface of tube 2, the liquid being removed by a pump 18 and passed through a cooler 19. The device is sealed to the jet outlet 43 by a flexible double walled jacket 24 and a blade 23 carrying radial projections may be provided inside tube 2. In a modification, Fig. 4, the rotating tube 52 is arranged vertically and the cooling liquid, fed on to the inner surface through pipes 44, 35, is retained on the surface by a helical baffle 36. The tube is supported on a rail 38 by rollers 37 and is rotated by a motor 53 driving gears 54, 51. The gas stream from the tube 52 passes into a rotating bowl 39 which is partially filled with liquid.
Patent GB-406467-A (GB)
Title: Improvements in reed and lay controlling mechanism for looms for weaving
IPC: D03D49/20
Filed: 1933-02-06
Abstract: 406,467. Reed and lay controlling mechanism for looms. DUPLAN SILK CORPORATION, 1450, Broadway, New York, U.S.A. Feb. 6, 1933, No. 3592. Convention date, July 30, 1932. [Class 142 (iii).] To permit adjustment of the reed or the lay, whilst the loom is inoperative, after an alteration in position of the fell of the cloth due to lost picks, pick-outs or shrinkage or stretching of the warp, the crank connecting rod 22 is connected to a pin 25 having two eccentric portions 26 rotatably mounted in the lay sword. Rotation of the pin 25 by means of a lever 27 causes the reed or the lay to be moved through a predetermined number of picks or a fraction of a pick, the lever 27 being provided with a spring pressed pin 35 for engagement with any one of a plurality of holes 31 in an indicating plate 30 which may be provided with a scale to indicate the number of picks or the fraction of a pick corresponding to the distance between two holes 31.
Patent GB-811225-A (GB)
Title: Improvements relating to the sealing of stems of valves
IPC: F16K41/00
Filed: 1956-02-06
Abstract: 811,225. Stuffing-box substitutes: BUTLER, G. A. Feb. 6, 1956 [Aug. 22, 1955], No. 3677/56. Class 122 (5). [Also in Group XXIX] Sealing means for the stem 14 of a valve comprises a ring 33 slidingly engaging the valve stem and the walls of the chamber 15 enclosing the stem so that one side of the ring is exposed to the pressure in the valve chamber and the other side is in contact with a sealant injected at 53 into the space 34 above the ring. The sealant may be a plastic medium, e.g. finelydivided mica or asbestos in a polymerized castor oil carrier. A conical rim 63 may be provided on the stem 14 to engage a seating 24 formed adjacent to an annular passage 22 to enable the pressure on the underside of the ring 33 to be cut off so that, while the valve is in its open position, the packing may be inspected, after the removal of the stem support 25. In place of the conical seatings 63, 24, the passage-closing portion of the stem may be flat to engage with a resilient seating face, or, in a further modification (Figs. 3 and 4, not shown), it may be omitted, the ring 33 being limited in its downward movement by a splitring carried in a groove formed at the bottom of the chamber 35.
Patent GB-620942-A (GB)
Title: A machine for the manufacture of hair slides of the type commonly known as "bobby pins," hair pins and the like
IPC: A45D8/00
Filed: 1947-02-07
Abstract: 620,942. Making hair pins. WELSFORD, W. M. Feb. 7, 1947, No. 3694. Convention date, Feb. 15, 1946. [Classes 83 (ii) and 83 (iv)] Shearing; rolling; angular bending; corrugating.-Hair fastenings known as " bobbypins " are made from wire which is crimped between rollers ; doubled into vee by a pivoted arm; sheared to length by blades on the crimp rolls, and sized between rollers. A machine, Fig. 1, has a smooth, resilient, upper feed-roll 13 coacting with a grooved, lower roll, to feed the wire along a grooved support plate 19 and under a retaining bar 21 to the crimping and shearing rolls 29, 22. The upper roll 29, Fig. 8, carries a radial shear blade 33 and a corrugated inset 35 and co-operates with the double diameter lower roll 22 geared to run at half-speed and carrying pairs of blades 37 and corrugated inserts 39. Between oppositely inclined upper and lower grooved guide plates 44, 42 and the rolls 29, 22 a pivoted arm 64 is cam-driven to reciprocate in synchronism. A small clinching roll 48 coacts with the lower roll 22, and carries a clinching recess 53 and a sizing projection 55. In operation four or more half-round or flattened wires 65 are simultaneously crimped by the rolls 29, 22 and curved upwards to engage the upper plate 44. The arm 64 descends to form a vee between the roller 22 and the plate 44 and wire feed continues until the vee apex engages the clinching recess 53 when the uncrimped limb is sheared and the rolls 48, 22 co-operate to size the pin and discharge it for grinding, heattreating, rust-proofing, carding, &c. The heel 34, Fig. 5, of the blade 33, bends a " lead in " on the entering wire end in co-operation with recesses 38 adjacent the blades 37. In a modification round wires are used and reduced to half-round or flattened section by the feed rolls.
Patent GB-908801-A (GB)
Title: Improvements in apparatus for washing bed-pans and like vessels
Inventor: GODDARD ALFRED THOMAS JAMES
IPC: A61G9/02
Filed: 1959-02-03
Abstract: 908,801. Bed-pan washing apparatus. DENT & HELLYER Ltd. Feb. 2, 1960 [Feb. 3, 1959], No. 3743/59. Class 26. A bed-pan washing apparatus of the kind having a hopper with an opening which is normally closed by a cover 2 mounted on a substantially horizontal hinging axis, means for supporting a vessel to be washed in the hopper 5 and means for supplying fluid to the interior thereof to wash a vessel therein, comprises a bed-pan supporting cradle 10 which, when the cover 2 is open, supports a bed-pan substantially-horizontally and spaced from the inner surface of the cover 2. The cradle 10 is hinged at or adjacent one end to a substantially-vertical pillar 9 secured to the hopper 5 and is pivotally connected by a lug 12 and rod 11 to the inner surface of the cover 2. The cradle 10 is a framework providing a base 14 and sides 15, 16 for accommodating the bed-pan. Specifications 344,593 and 803,817 are referred to.