baber/WOPTO huggingface dataset:
Patent GB-561177-A (GB)
Title: Improvements in and relating to the construction and manufacture of cathodes for electric discharge devices
IPC: H01J61/067
Filed: 1942-07-28
Abstract: 561,177. Discharge lamps; thermionic cathodes. BRITISH THOMSON-HOUSTON CO., Ltd. July 28, 1942, No. 10560. Convention date, July 29, 1941. [Class 39 (i)] [Also in Group XXII] A cathode for an electric discharge device, more particularly a fluorescent lamp, comprises a conductive core wire 15, Fig. 2, surrounded by a fine wire helix 11, the cross-section of which is larger than that of the core wire and which is bounded by curved portions of wire connected by straighter portions. The core wire serves as a heat reservoir to prevent the formation of hot spots at the points where the discharge strikes the wire helix. The points of contact between the helix and the core wire may be spot welded. The helix may be coated with activating material which may also fill the spaces between it and the core wire. A cathode in which the helix is of flattened oval form may be formed by winding a tungsten wire 11 around larger wires 15, 17, of tungsten and molybdenum respectively, as shown in Fig. 5, and then winding the composite structure about a mandrel 18, Fig. 7. After heat-treatment, to set the tungsten wires in their coiled configuration, the wire 17 is dissolved out by treating the structure with a mixture of nitric and sulphuric acids. The mandrel 18 is preferably also of molybdenum so that it may be removed in the same process. In a modified construction the helix is of triangular section, the corners of the triangle being rounded.
Patent GB-591038-A (GB)
Title: Improvements in or relating to spring feeding means
IPC: F23Q2/48
Filed: 1945-04-26
Abstract: 591,038. Frictional igniters. PUCKERT, E. W. April 26, 1945, No. 10566. [Class 75 (iii)] [Also in Groups XXXII and XXXV] Spring means, e.g., flint-feeding means of pocket lighters, for imparting a rectilinear feeding movement to a member, e.g., a flint push-rod 5, comprise two coiled springs 3, 4 which intermesh concentrically, the first spring 3 being rotatable but not slidable and secured to an actuating member, e.g., a knurled operating head 2, and the second spring 4 being slidable but not rotatable and secured to the member to be fed. e.g., the push-rod 5. As shown, the springs 3, 4 are contained in a tubular housing 1 and through the push-rod 5 urge the flint 7 into contact with the flint wheel 8.
Patent GB-180508-A (GB)
Title: Egg testing device
IPC: G01N33/08
Filed: 1921-04-11
Abstract: 180,508. Scruby, R. April 11, 1921. Eggs, testing.-In an eggtesting device, flexible upstanding contact members f, g, h, k are so arranged that the members f, h project through the egg - receiving aperture m in the cover n, and either or both of the members are pressed outwardly by direct contact with the egg to contact with the members g, k respectively, thus completing the lamp circuit. A battery c is positioned by upstanding pins b on the base a, two of the pins serving to connect the lamp d with the battery. Recesses o, adjacent to the aperture m, may contain radium paint to facilitate use in darkness. One pair of flexible contacts only may be used. According to the Provisional Specification the flexible members are pressed downwardly to complete the circuit.
Patent GB-107092-A (GB)
IPC: B65D65/40
Abstract: 107,092. Gunn, A. L., and Lawson, E. D. July 10, 1916. Packing - materials. - A packing-material is formed of corrugated paper A having secured to it a sheet of straw board B on which is mounted a glazed and printed show card C.
Patent GB-184537-A (GB)
Title: Improvements in and in connection with shuttles of smallware looms
IPC: D03D35/00
Filed: 1921-04-13
Abstract: 184,537. Jackson, T. T. April 13, 1921. Smallware looms.- In looms for weaving single or multiple webs, each shuttle comprises a rear part b of wood &c. carrying a body part a of metal, alloy, &c., which is deeply dished at e to accommodate a pirn, cheese, or bobbin d of large diameter, there being no passage down through the bottom of the shuttle. The sides i increase in depth to the rear and are of inclined form in cross-section. The front f is thin and is curved in plan, and the eye g is vertical. The bobbin d may be supported in a hole in one side i and in a slot in the other, and it has a brake such as k. Ears en the part a are secured by screws to the part b, which moves in grooves in the usual bars p. The picking-rod s moves in a groove in the lay, and on it is an antifriction bowl v, which supports the front part of the shuttle. The picking may be effected by the usual arms on the rod s or by rack-and-pinion devices &c.
Patent GB-956035-A (GB)
Title: Improvements in or relating to automatic gain control in television receivers
IPC: H04N5/52
Filed: 1961-03-24
Abstract: 956,035. Automatic gain control. E. K. COLE Ltd., and P. A. TINGEY. March 15, 1962 [March 24, 1961], No. 10794/61. Heading H3Q. In a television receiver the gain of the video channel is normally controlled by an automatic gain control voltage derived from the sound channel, but if. this falls below a predetermined value, the gain control voltage is derived from the video signal. Sound I.F. signals are rectified by a voltage-doubler rectifier comprising diodes V1, V2, the sound channel automatic gain control being derived from diode V1 via resistor R1, and the audio signal taken off over resistor R3. The vision channel gain control voltage is developed across resistor R2 and applied to vision I.F. stages via resistor R4 and smoothing resistor R8 and capacitor C4. Delay is applied by means of a shunt diode V3, the anode of which is given an adjustable positive potential derived via resistor R5 from the contrast control potentiometer VR1. In addition, the video signal is applied over capacitor C3 to the grid of a sync. separator V5, developing a negative potential across resistors R6, R7, the potential across resistor R7 being applied to the vision I.F. stages via diode V4. The arrangement is such that in the presence of a sound channel derived gain control voltage, the anode of diode V4 is biased negatively, so that this diode is non-conductive. If this gain control voltage is, however, absent, the vision channel derived gain control voltage across resistor R7 is applied via diode V4, which is then conductive, to the vision I.F. stages.
Patent GB-954185-A (GB)
Title: Improvements in or relating to gearboxes for vehicles
IPC: F16H63/30
Filed: 1963-03-19
Abstract: 954,185. Change-speed control. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. March 19, 1963 [March 22, 1962], No. 10843/63. Heading F2D. An hydromechanical transmission for a forklift truck comprises a two-speed gear with forward and reverse friction clutches which are automatically disengaged during gearshift. As shown, the torque converter turbine T is coupled by a shaft 1 to a bevel pinion 2 meshing with forward and reverse pinions 3, 4, connected to the clutches 6, 7, the common driven shaft 5 of which is coupled to the twospeed gear 8, 11 and 9, 12 incorporating a synchronizer 14, the output shaft 10 being coupled by pinions 15, 16 to a differential 17 driving the half shafts 18, 19. The control system may be hydraulic or pneumatic, but is shown as hydraulic with a pump 34 supplying liquid through pressure lines 35, 36 to a reversing valve 30 with outlets 37, 38 to the clutches 6, 7 and through a pressure line 39 to a gear-shift valve 31. The outlets 40, 41 from the latter are connected to the ends of a cylinder housing a piston 32 connected to the shift fork 13 and with end ports 32a, 32b which may be put into communication with a pipe 42 connected to one end of a spring-loaded valve 33 between pipes 35, 36. With gear engaged pressure liquid is supplied through one of the outlets 37, 38 to the appropriate clutch and through one of the outlets 40, 41 to hold piston 32 in one of its end positions and thus hold valve 33 open against its loading spring 33a, but upon operating shift valve 31 the pressure to piston 32 is cut off and outlet 40 or 41 vented to exhaust, the pressure in line 42 thereby falling to allow spring 33a to close valve 33 and cut off pressure to reverse valve inlet 36 to release the engaged clutch. When piston 32 reaches its other end position pressure in line 42 is restored to re-open valve 33 and thus restore pressure to inlet 36 and re-engage the clutch.
Patent GB-307648-A (GB)
Title: Method of and apparatus for electric resistance welding
IPC: B23K11/31
Filed: 1928-04-13
Abstract: 307,648. Burgess, A. F., (Gravell, J. H.). April 13, 1928. Heating by electricity. - In resistance welding the opposed electrodes A, C are arranged in independent circuits furnishing currents which coalesce at the joint B and return to the transformers F, G through contacts D, E. The electrodes and contacts may be in the form of rollers. The primaries F, G may be connected in series. The electrodes may be shaped to concentrate the currents or this may be effected by buttons applied over the place of heating.
Patent GB-451170-A (GB)
Title: Apparatus for generating oxygen, especially for breathing purposes
IPC: A62B21/00
Filed: 1936-04-16
Abstract: <PICT:0451170/III/1> In oxygen - generating apparatus, the chemical mixture is moulded by pressure in the form of a rod A, provided with a recess for an igniter A<1>.  The rod is inserted in a container B and is firmly housed and protected against shock by means of a heat-insulating and filtering sheath C, of kieselguhr, magnesia, lime, asbestos or sea sand, which completely fills the space between the rod and the container.  The liberated gases are filtered and cooled by passage through the sheath C, and are then passed through a shallow filtering layer D in the neck F of the container, thence to outlet E.  The generation of oxygen is initiated by a striking pin F which acts on a primer G.
Patent GB-1085833-A (GB)
Title: Improvements in and relating to the combination of papers and paper boards
Inventor: POTTER JOHN HUBERT
IPC: C09J103/00
Filed: 1963-03-20
Abstract: An adhesive comprises a latex dispersion of a rubbery copolymer of styrene and butadiene having active polar groups, a carbohydrate or proteinaceous substance and a cross-linking agent to link chemically the copolymer with the carbohydrate or proteinaceous substance. The polar groups may be carboxyl groups, e.g. those derived from itaconic acid while the carbohydrate may be starch, a dextrin, e.g. ungelatinized starch suspended in an aqueous alkaline solution of gelatinized starch, gums or a mono-or di-saccharide, and the proteinaceous substance, casein, soya-bean protein or bone or hide glue.  The cross-linking agent may be an A-stage urea-formaldehyde resin or melamine-formaldehyde resin, e.g. dimethylol-urea, or a complexed di- or tri-valent metal which will decompose on drying into the hydroxide of the metal, e.g. ammonium zincate.
Patent GB-1501296-A (GB)
Title: Thermally crystallizable glasses possessing controlled crystallization and flow properties and process of producing same
IPC: C03C8/24
Filed: 1975-03-18
Abstract: 1501296 Crystallizable compositions OWENSILLINOIS Inc 18 March 1975 11137/75 Heading C1M A thermally crystallizable composition is composed of a uniform blend of finely comminuted, crystallized and uncrystallized particles of thermally crystallizable glass, there being 100-225 parts by weight of crystallized particles per million parts by weight of uncrystallized particles, and the particles being of size such that substantially all will pass a 100 mesh U.S. Screen, and 65-78% by weight pass a 325 mesh U.S. Screen. The inclusion of crystallized particles is said to modify the crystallization and flow rates. The thermally crystallizable glass may consist of, by weight: PbO 70-82%, B 2 O 3  5-15%, ZnO 7-20%, SiO 2  1-10%, Al 2 O 3  0-5% and other constituents 0-17% (with no other constituent exceeding 10%). Other constituents used in examples are; BaO 0-1%, SnO 2  0-1%, CuO 0-1%, Na 2 O 0-1%, Li 2 O, 0-1%, CdO 0-1%, Fe 2 O 3  0-1%, K 2 O 0-0À5% and CaO 0-1%. The above composition may be admixed with further uncrystallized glass to produce a blend comprising 1-10 parts by weight of crystallized glass per million parts of uncrystallized glass.
Patent GB-741103-A (GB)
Title: Snap acting thermostat
Inventor: BLETZ EDWARD
IPC: H01H37/60
Filed: 1953-04-23
Abstract: 741,103. Thermal switches; snap-action switches. STEVENS MANUFACTURING CO., Inc. April 23, 1953, No. 11241/53. Class 38(5) [Also in Group XXIX] A switch comprises a moving contact mounted on a flexible snap-acting member having tension and compression elements, the compression element being in engagement with two axially-aligned abutments, one of which is adjustable, the movable contact being actuated by a bimetal strip. In one form, Fig. 1, a contact 40 is carried by a trifurcated blade spring 24, the central, compression member 32 of which bears against an adjustable member 23 and a spring abutment 37. A bimetal strip 26 has an insulating button 46 which bears against a downwardly biased spring arm 25 carrying the co-operating contact 41 and having a bent-over end 42 with an insulating stop 45. When the bimetal bendsup on heating, the arm 25 moves the spring 24 upwards also, until the latter snaps over-centre to open the contacts. When the bimetal cools, it bends down again and arm 25 follows it, this movement causing the stop 45 to push the spring 24 over-centre again to reclose the contacts. Movement of member 23 varies the operating temperature. In a modification (Fig. 6, not shown), the abutment 37 is replaced by an insulating stud arranged between the arm 25 and spring 24. In a further modification (Fig. 9, not shown), a further contact-carrying arm is arranged above the spring 24 so that the switch acts as a changeover switch. In a further arrangement, Fig. 10, the adjustable member 23 is replaced by a screw 64 acting on a spring arm 62 and the part 42 of arm 25 is omitted, so that the switch has to be reclosed by depression of a push-button 68.
Patent GB-113704-A (GB)
IPC: F01D11/00
Abstract: 113,704. Cory, F. G. April 5, 1917. Jet - wheels; c a s i n g s; cooling parts; working-fluid supply. - Relates to internal combustion turbines of the kind described in Specification 105,384, wherein combustion chambers are formed by pockets 16 in the rotor registering with stator chambers 19, and consists mainly in a device for regulating the pressure of the spring-pressed packing - plates 24, which ' closely surround the chambers 19 and bear on the rotor. To the side ribs 26 of the plates 24 are pivoted rods 32, which are secured at the other end to bowsprings 33 fastened to projections 35 on rings 36, which are loosely mounted on nut-sleeves 37. By screwing the nuts 37 towards or from the rotor, the tension of the springs 33 is adjusted, the degree of adjustment being indicated by suitable graduations. The contacting edges of the ribs of the plates 24 may be grooved to receive lubricant, which serves also for packing. The fuel or gas mixture is supplied by pipes 41 through ports 22 in the plates 24 when these ports register with the lateral enlargement of the pockets 16, Fig. 3, and flows by way of the pockets 16 to the chambers 19, where it is ignited by plugs 23, exhaust taking place through ports 29 in extensions of the chambers 19. The shaft 11 carries fan blades 50, 55 to deliver air for cooling the turbine, and vanes 52 in the rotor deliver a scavenging-charge of air into the combustion chambers.
Patent GB-1206676-A (GB)
Title: Device for obtaining ground samples or cores
Inventor: TIRASPOLSKY WLADIMIR
IPC: G01N1/08
Filed: 1968-03-08
Abstract: 1,206,676. Boring earth &c. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 8 March, 1968 [9 March, 1967], No. 11444/68. Heading E1F. In coring apparatus comprising a body 1, a core barrel 8, and a plug 9 within the barrel and having cutters 30, the plug is fixed to the barrel during normal drilling and released from the barrel during coring by a series of operations at least one of which consists in varying the pressure of the flushing fluid which is supplied to the apparatus. The apparatus of Fig. 1 as suitable to be attached to a downthe-hole electric motor and is lowered to the drilling position with parts set as shown. The apparatus is first rotated to move the balls 22 in a piston 15 on a barrel support stem 14 outwardly and the hole is then drilled by continuing the rotation whilst supplying flushing fluid to the apparatus, the fluid passing through apertures 23, 18, 7, 28, 29 into the hole. To set the apparatus for coring the rotation and fluid supply are stopped, the balls returning to their central positions. Fluid is then supplied to move the barrel support stem and a depending connecting member 31 downwardly against springs 16, 33 and to free pawls 46 mounted on the stem from the body. A piston 43 is then moved downwardly to release the pawls, the supply of fluid then being stopped so that the springs raise the stem and member to raise the barrel slightly and close its apertures 28. The raising of the barrel removes balls 10 from grooves 13 to free the plug from the barrel and permit relative rotation between barrel and body. Coring is commenced by resuming rotation and supply of fluid, the fluid passing around the piston through apertures 18 and about the barrel to the hole. In a modification (Fig. 3 not shown) which may be driven from the surface, or by a down the hole motor such as a turbine, the piston is modified so that a set number of pressure pulses must first be given to the fluid to restrict flow through the piston so that an additional pulse will set the apparatus for coring. When the apparatus is set for coring some of the flushing fluid does not pass through the apparatus but is by-passed to the hole. In a further modification the piston has the combined constructions of Figs. 1 and 3.
Patent GB-768430-A (GB)
Title: Purification of acrylonitrile
Filed: 1955-04-20
Abstract: Acrylonitrile is purified by treating with sufficient nitrogen tetroxide to destroy dienic impurities contained therein, whereafter the purified acrylonitrile is separated out by distillation, preferably with the aid of steam.  The nitrogen tetroxide may be introduced in gaseous or liquid state below the surface of the acrylonitrile, the treatment being effected batchwise in a tank provided with an agitator or in a continuous manner by introducing the nitrogen tetroxide into a flow of acrylonitrile.  It is preferable to allow a reaction time of 15 to 60 minutes before distillation.  To prevent corrosion, the acidity produced by the reaction may be neutralized before distillation.  Detailed examples are given of the batchwise treatment of acrylonitrile with nitrogen tetroxide, the acrylonitrile being carried away with steam.
Patent GB-164929-A (GB)
Title: Improvements in and relating to accident preventing devices for cranes and the like
IPC: B66C15/00
Filed: 1920-04-26
Abstract: 164,929. Arrol & Co., Ltd., Sir W., and Shepherd, R. G. April 26, 1920. Overhead travellers.-The trollies or bridges of travelling-cranes are fitted with emergency power cut-off gear operable by individuals prevented from escaping from the track. Platforms a, fitted with hand-rails b, are pivoted near the ends of each wheel axle and are maintained normally in the position shown by springs c. The weight of a man stepping on to any one of the platforms, depresses it and thereby through a cable j opens a switch controlling the locking-means of the main power switch. Upon the opening of this auxiliary switch the main switch opens automatically and a brake is applied to stop the bridge. The operator cannot re-start the bridge by manipulating the controlling-handle, until the main switch is relocked by the restoration of the electromagnetic locking-means. In some instances the apparatus may be used for stopping the bridge at predetermined points, by operating the platforms through the medium of stops on the track.
Patent GB-866855-A (GB)
Title: Bag structure for garment finishing machines
IPC: D06F73/00
Filed: 1959-04-06
Abstract: 866,855. Drying and finishing garments. WICHITA PRECISION TOOL CO. Inc. April 6, 1959 [May 1, 1958], No. 11523/59. Class 34(1) The shape of a garment finisher bag structure 10, Fig. 3, of flexible and steam and/or air permeable material may be varied by actuating drawstring arrangements 40, 42, attached to the inner surface of the bag at the waist and the hem. The waist arrangement 40 comprises two loops 44, 46, Figs 2, 4, held in slidable contact with the bag by piping 48 and eyelets 54 and connected by hooks 56, a cable 58, a pulley 60 and a cable 62 to an operating knob 64, Fig. 1, which is located at the front of the finishing machine adjacent pressing clamps 36. The arrangement 42 at the hem comprises four loops 82, 84, 86, 88, Figs. 3, 5, held in slidable contact with the bag by piping and eyelets such as 90, 92 and 76, 80, and connected to an operating knob 102 at the front of the machine by shackles 94, cables 96, 100, and pulleys 98, 103. The loops 82, 84, 86, 88, pass through eyelets 91, 95, secured to the base 14 of the machine and the cable 96, and pulley 98 are attached to a beam 39 forming part of the machine. The free end of the cable 58, Fig. 2, is fixed to this-beam. The hem of the bag 10, which carries a drawstring 32 for securing the bag to an annulus 28 at the top of the machine base 14, is gathered up at the front and rear by loop members 66, 68, Fig. 3, and to prevent garments riding up' on inflation of the bag. rough surfaced strips 106 are provided thereon. The bag has openings, 22' closable by slide fasteners 24 and an elastic loop element 104. which embraces the neck element 18. of the machine and holds a zone 108 of the bag relatively flat upon inflation thereof. Specification 774,732 is referred to.
Patent GB-1246911-A (GB)
Title: Improvements in or relating to mechanical systems for the remote control of davit winch hand brakes
Inventor: OBLIEGHT RODOLFO
IPC: B63B23/52
Filed: 1969-03-04
Abstract: 1,246,911. Winches. ING. U. & M. FLLI BERETTA. 4 March, 1969, No. 11532/69. Heading B8B. [Also in Division F2] A cable 15 for mechanically remote-controlling a davit winch brake 7 is wound at one end on a drum 16 positioned in the davit suspension system, between a suspension block 9 thereof and the davit winch 4, 5, 104, the drum 16 being driven by one of the boat suspension cables 10 through guide pulleys 11, 12 such that the control cable 15 is paid out and wound in at the same speed as the boat is lowered or raised. The winch brake 7 which may be disengaged by direct manual lifting of a weighted lever 8, is remotely disengaged by the cable 15 passing over a free pulley 18 on a weighted lever 21 which upon manual pulling of the end 24 of cable 15 is caused to lift and a pin 26 thereon engages the lever 8 to lift it. The drum 16 is mounted on the axis of the guide pulleys 11 and 12 and is driven through an epicyclic gear immersed in an oil bath within the drum. The planet carrier 216 is formed integrally inside the drum and carries shafts 40 having planet gears 41, 42 at each end, the gears 41 meshing with a sun gear 35 driven by the guide pulley 11 and the gears 42 meshing with a ring gear 34 driven by the guide pulley 12. The gear ratios are such that the drum pays out cable 15 at a linear speed equal to that of the suspension block 9 supported by a twin line arrangement of the cable. A ratchet wheel 54 and associated adjustable spring-pressed ball pawls 56 facilitate disengagement of the drive between the pulley 11 and the sun gear 35. Spring-biased rollers 44 and 49, 50 keep the cables 10 and 15 in grooves of the pulleys 11, 12 and drum 16 respectively.