baber/WOPTO huggingface dataset:
Patent GB-147815-A (GB)
Title: Improvements in and relating to enclosed electric arc devices
IPC: H01J19/68
Filed: 1920-07-09
Abstract: 147,815. British Thomson - Houston Co., (Assignees of Mackay, G. M. J.). Oct. 30, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Arc lamps; vacuum tubes.-An inert gas in an enclosed arc device having an incandescent cathode is kept free by a substance which combines with foreign gases such as nitrogen, hydrogen, and water vapour, evolved by the electrodes and walls of the envelope during use. The resulting compounds have a negligible vapour pressure. Lower electric pressures are then sufficient. Phosphorus pentoxide may be employed as the purifying agent when the bulb is filled with nitrogen. For the monatomic gases argon, neon, krypton, xenon, and helium, magnesium, calcium, or a similar metal is suitable, but phosphorus pentoxide, it is stated, also appears to combine with hydrogen and nitrogen to some extent. Carbon dioxide may also be used for filling the bulb. The gas, which suppresses electrical disintegration of the cathode, may have a pressure varying from several mm. of mercury to about an atmosphere. For a, low-voltage rectifier, argon at 5-12 cm. of mercury is suitable. In a neon tube, the pressure may be half an atmosphere. The purifying substance, in the form of wire or strip, may be wrapped around a leading-in wire near the hot cathode, so as to become vaporized; or the substance may be enclosed in a sealed capsule 10 which is placed in an open tube 11 and broken by shaking after the bulb is sealed. The incandescent cathode 2 may be of material fusing above about 2000‹ C., such as tungsten, tantalum, or carbon. The anode 3 may be of tungsten, carbon, mercury, or the like. An envelope of sodiummagnesium boro-silicate glass may be used.
Patent GB-199966-A (GB)
Title: An improved flexible connection for gas and other fittings
IPC: F16L27/107
Filed: 1922-07-20
Abstract: 199,966. Yeomans, E. S. July 20, 1922. Elastic-grip joints.-A flexible connection for gas and other fittings comprises a tubular member of rubber or other expansible material, provided at both ends with an annular flange b to retain in position a closely coiled spring c of steel or other wire with its ends free, which, while permitting the connections to expand when fitted over a nipple or the like, prevents it from splitting.
Patent GB-991172-A (GB)
Title: Improvements in or relating to screwed joints, particularly in electric resistance heating elements composed of graphite rods
IPC: H05B7/101
Filed: 1961-06-02
Abstract: To avoid anisotropic thermal expansion in the region of engagement of a graphite rod 1 with axial grain direction (produced by drawing) set in an aperture of a graphite ring 6 (for supporting a plurality of rods) with orthogonal grain direction, an extension piece 2 of graphite with grain directions lying uniformly in a plane parallel to that of the ring (produced by pressing) is joined to the rod 1 by means of a joint comprising a threaded 90 degrees conical male portion (Fig. 2) and a threaded 90 degrees conical recess.  The threads have horizontal and 45 degrees flanks so that differential expansion causes sliding movement of the 45 degrees faces along each other (see Fig. 3). The horizontal faces separate, or, if the male and female are reversed, move towards each other in which case suitable initial clearance must be provided. <PICT:0991172/C1/1> <PICT:0991172/C1/2> <PICT:0991172/C1/3> To maintain good electrical connection between the ring 6 and the extension piece 2 (which will have axial movement on heating) the latter is tapered and a split collet 3 mounted on it can be expanded against the aperture walls by means of nuts 4 and 5. Specification 922,891 is referred to.
Patent GB-1339055-A (GB)
Title: Ultrasonic bonding device
IPC: B23K20/10
Filed: 1971-04-19
Abstract: 1339055 Welding by pressure INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [12 Feb 1970] 20017/71 Heading B3R [Also in Division H4] An ultrasonic bonding device comprises a vibratable member 12 including a one-piece component extending over the whole length of the member in the direction of vibration, a means 14 for inducing longitudinal vibrations in the member 12, a working arm 18 having a bonding tip at one end and directly attached rigidly at the other end to the member 12 so that the arm vibrates transversely of its length and a means 17 for supporting the member 12 only at a nodal point or points. The member 12 is formed of a stack of nickel plates and the means 14 comprises an energizing coil 14. The support means 17 comprises a solid member terminating in a threaded shank which passes through a slot 16 in the stack of plates and is secured to clamping straps 19, 21. The arm 18 which is brazed to the stack 12 may be sintered carbide material and its tip may be used to bond a wire 27 to a circuit board 26. Another arm may be mounted at the other end of the stack. Gold coated copper wire may be bonded to gold connectors on a circuit board.
Patent GB-433985-A (GB)
Title: Improvements in massage apparatus
IPC: A61H15/00
Filed: 1934-07-09
Abstract: 433,985. Massage apparatus. PELLI, M. RUTTGER-, 42, Habsburgstrasse, Lucerne, Switzerland. July 9, 1934, No. 20085. Convention date, Aug. 15, 1933. [Class 81 (ii)] A massaging-apparatus, of the kind described in Specifications 259,867 and 328,532, [both in Class 81 (ii)], is provided with means for facilitating replacement of the massaging balls in their holders, means for imparting swinging movements to the holders, and means for lubricating the bearings of the holders. The device comprises a casing 1, Fig. 2, containing a frame 2 having a hub 5 in which a bushing 6 is fixed. A hollow shaft 7 is journalled in the bushing, and the shaft 8 of a rotary disc 9 extends through the shaft 7. A nut 11, which screws on to one end of the shaft 8, enables this shaft to be clamped to the bushing 6 when required. A number of ball holders 14 are journalled in the rotary disc 9, and a ball 16 is retained by a cap screw 42 in a recess in the head of each holder. The head is eccentrically placed on its stem 17, and a planet pinion 18, fixed on each stem 17, meshes with a spur wheel 20 secured to the hollow shaft 7. The stems 17 are free to slide longitudinally in the disc 9 and are normally pressed outwards by springs 21. The shaft 7 is rotated by gear wheels 25, 27 driven by a worm secured to a shaft 4 which is housed in the handle 3 of the device and is driven by any suitable means. In use, the shaft 8 may be locked to the bushing 6 by the nut 11, or it may be allowed to rotate. In the first case, each of the ball holders rotates on its own axis, each ball then being rotated in a circle of small diameter. In the second case, the ball holder is also rotated about the axis of the disc 9 as the disc is also free to rotate. The ball holders may also be made to oscillate as the disc rotates, and for this purpose, each of the stems 17 carries on its inward end a lever 44, Fig. 4, the free end of which engages in a cam groove 46 formed on a plate 47 secured to the frame of the device. The shaft 8 has an axial bore 33, Fig. 2, which is continued by branches 34 within the disc 9. Lubricant is supplied through these passages to the bushing 6 and the bearings of the ball holders.
Patent GB-189486-A (GB)
Title: Improvements in spring seating surfaces mattresses and the like
IPC: A47C27/06
Filed: 1921-07-27
Abstract: 189,486. Marshall, J. E. L. July 27, 1921. Grant of Patent refused. Spring surfaces for mattresses &c. The coils A of each row of springs B overlap each other without interlacing, and are fabric covered to prevent metallic contact between. the coils when depressed. The upper and lower ends of the springs are connected by open wire coils C, and the coils of each row may also overlap those of adjacent rows in order to increase the number of springs employed.
Patent GB-667574-A (GB)
Title: Improvements in or relating to control devices for compressors and the like
IPC: F04B49/02
Filed: 1949-08-02
Abstract: 667,574. Fluid-pressure servomotor-control systems; fluid-actuated valves. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Aug 2, 1949 [Aug. 13, 1948], No. 20132/49. Class 135. A valve device controlling a compressor unloader and allowing, under normal conditions, the unloading device to be vented to atmosphere, incorporates two connected pressure-responsive members, one permanently subject to the pressure in the air reservoir and the other subject to the same pressure only after the valve has moved to connect the unloader to the reservoir. As shown, the valve device comprises a spring-loaded dumb-bell member presenting an inlet valve closure member 40 and a seat 42 for a vent or outlet valve closure member constituted by a tube 58 which is spring-loaded into contact with a diaphragm 20. The latter is always subject to the pressure in a chamber 26 which is connected to the reservoir via a passage 30 and a strainer 36, and the reservoir connection also leads via a passage 48 to a chamber 44 containing the inlet valve. Diaphragm 20 also carries a piston 64 subject to the pressure in a chamber 69, the latter being connected by passages (not shown) to the chamber 50 and to the conduit leading to the unloader. In normal operation of the compressor, the valve device is positioned as shown, and the unloader and chamber 69 are vented to atmosphere via ports 60 in tube 58 and an opening 28. When the reservoir pressure rises sufficiently, diaphragm 20 will be forced upwards, tube 58 will close on its seat to disconnect the unloader from atmosphere and the subsequent upward movement will unseat the inlet valve to allow reservoir pressure to flow to the unloader. The initial part of this last movement will allow reservoir pressure to flow to chamber 69 and act on piston 64 against the action of loading spring 68, and the combined pressures on the diaphragm and piston will cause the inlet valve to snap over.
Patent GB-875154-A (GB)
Title: An improved device for operating the windscreen cleaning equipment of motor vehicles
Inventor: FORSTER HANS
IPC: B60S1/48
Filed: 1960-06-08
Abstract: 875,154. Switches held set and freed mechanically. VDO TACHOMETER WERKE A. SCHINDLING G.m.b.H. June 8, 1960, No. 20197/60. Class 38 (5). [Also in Group XXIII] In a pedal-operated, windscreen-wiper drive switch, depression of the pedal 9 between positions I and II closes the switch while foot pressure is maintained. Depression of the pedal beyond position II operates a catch 8 to hold the pedal in switch-closed position, a pin 16 mounted on a lug 15 engaging under a spring-loaded pawl 17. Further depression of the pedal to position III results in its release from the catch and subsequent return to switch-open position I, the pin 16 engaging a bent portion 21 of the pawl 17 and rocking it laterally on a pin 19.
Patent GB-691613-A (GB)
Title: Improvements in and relating to davits
IPC: B63B23/04
Filed: 1950-08-15
Abstract: 691,613. Davits. THOMSON. W. G. Aug. 9, 1951. [Aug. 15, 1950] No. 20205/50. Class 115. In a ship's davit, wherein luffing movement is effected by the weight of the boat, having a movable pivotal mounting for the davit arm at or near the foot thereof, the mounting being movable downwards during initial luffing movement of the arm, an extensible and collapsable or free link connection between the davit arm and a point of attachment inboard of said pivotal mounting is freely movable initially to control and finally limit the luffing movement of the arm. In the embodiment of Fig. 1 the davit arm has a pivotal mounting 2 movable in a guideway 10 and links 5, 6 connected at 4 to a fixed bracket S. When the davit is released the pivot 2 moves to position 2a with the link 6 in compression, thereafter the links move to positions 5a. 6b, in which they prevent further luffing movement of the arm. The links may be replaced by a telescopic member e.g. an hydraulic cylinder, or as shown in Fig. 2 by a rod 16 on which a block 18 slides between collars 19 and 20. the block being pivoted to the davit arm at 3. The link 5 of Fig. 1 may be dispensed with. in which case the pivot 3a carries a roller movable in a guideway, or instead of moving in the guideway 10 the pivot 2 may be on the end of a link the other end of which is also pivoted at 4. In other embodiments the link 5 is dispensed with, the link 6 being pivoted at one end to the davit arm and at the other end to a fixed point. The davit arm may be mounted on a tilting base 33 which is pivoted at 34 on a fixed bracket 35, in which case the foot 31 of the arm may be pivoted to the tilting base or, as shown in Fig. 6, may be movable along a guideway 32 therein. The link 36 is pivoted at 37 to the link 6a which is pivoted to the tilting base.
Patent GB-209127-A (GB)
Title: Improvements in spring frames for motor-cycles and the like
IPC: B62K25/28
Filed: 1922-07-25
Abstract: 209,127. Bale, J. S. July 25, 1922. Spring devices; buffers.-In a spring frame for cycles &c. wherein a rear-wheel frame is pivoted low down on the main frame and is connected to the upper part of the main frame by a rod H and spring S extending into the top tube A, the abutment L is adjustable by a sleeve K which screws into a collar j<3> carried by a sleeve J which is fixed in the tube A by a flanged nut j<2>. A recoil spring S<2> may be interposed between the collar j<3> and a collar L<2> on an extension H<1> of the rod H. The rod is fixed to a sleeve G which rotates on a pin g<2>, the pin being connected by two arms g<1> to a sleeve mounted on a pin b<6> of the rear wheel frame. As modified in Fig. 4, a spring S<3> is mounted in a tube A<1> fixed to the main frame and has an abutment L<3> fixed to the tube and an abutment L<4> which abuts against a nut h<4> on the rod H'. but is slidable in a sleeve K<1> screwed into the tube A<1>. Adjustable amounts of play l<3>, l<4> allow the spring to act in both directions. Two tubes A<1> may be mounted parallel to the top bar of the main cycle frame.
Patent GB-934160-A (GB)
Title: Improvements in and relating to writing instruments
Inventor: HARE RONALD WILLIAM
IPC: B43K24/06
Filed: 1961-06-06
Abstract: 934,160. Writing instruments. JOHNSON, MATTHEY & CO. Ltd. May 24, 1962 [June 6, 1961], No. 20363/61. Class 146 (3). Mechanism for retracting or projecting a writing instrument 4, such as a ball pen or a pencil, with respect to an outer casing 15, comprises a cylindrical writing-instrument carrier 2, a sleeve 7 slidably but non-rotatably mounted on the carrier and shorter than the carrier, and an operating member 11 rotatable but axially immovable with respect to the sleeve 7, the member 11 having a part 11a extending into a space between the sleeve 7 and corner 2 and formed with an operating cam 12 so that relative rotation between the parts 7, 11 causes projection of the instrument against the action of a retracting spring 13 situated between the inner end 3 of the carrier 2 and the member 11. The cam 12 acts on a pin 6 which is attached to the carrier 2 and engages a slot 8 in the sleeve 7 to prevent relative rotation between the parts 2, 7. Relative axial movement between the parts 7, 11 is prevented by crimping the sleeve 7 slightly into engagement with the member 11. The end 2b of the carrier 2 is hollow and split to receive the end 4 of the writing instrument 5. The outer casing 15 is attached to the mechanism by means of a threaded sleeve 14 on the casing and a threaded part 9 on the sleeve 7. An operating cap 16 can be pressed over a knurled part of the member 11. Specification 849,460 is referred to.
Patent GB-634815-A (GB)
Title: Improvements relating to the dynamic braking of induction motors
IPC: H02P3/20
Filed: 1947-07-29
Abstract: 634,815. Control of A.C. motors. CARR, L. H. A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 29, 1947, No. 20439. [Class 38 (iii)] In order to brake an induction motor 5, one winding, for example the stator, is disconnected from the three-phase supply and is excited with direct-current, while the other motor winding is connected to a load resistance 1. The induction motor drives a tachometer generator 4 which supplies direct-current to a control motor 2 acting against the action of a spring 3 to adjust the setting of the resistance 1 so that the value thereof is varied in proportion to the speed of the induction motor and the braking torque is maintained at a constant value throughout the working speedrange. Maintenance of the maximum braking torque is afforded by suitable adjustment of the field excitation of the generator 4. In order to maintain the braking torque at a reduced value the excitation of the tachometer generator is increased so that, for a given speed of the induction motor, the input to the motor 2 and the value of the load resistance are increased. When the induction motor is, stationary and the generator 4 has no output, the resistance 1 is adjusted to have zero value, the value increasing as the induction motorspeed rises. The output of the tachometer generator may be applied across a voltage divider from which the control motor is supplied with an adjustable fraction of the generator voltage. When the load resistance is used during both braking and motoring operation the output of the tachometer generator is opposed by a fixed voltage so that there is no input to the control motor under maximum speed and minimum braking torque conditions and the load resistance is held at'its maximum value. As the induction motor-speed falls, the control motor is adjusted to decrease the load resistance. The polarity of the voltage applied to the control motor is reversed during motoring operation or reversed braking operation. Specification 632,831 is referred to.
Patent GB-1038223-A (GB)
Title: Catalysts for the oxidation of exhaust gases
IPC: B01D53/94
Filed: 1963-05-22
Abstract: Oxidation catalysts which have been made by the process described in the parent Specification and comprising 5-30% CuO and 0.0025-0.4% Pd on a support having a surface area of at least 100 sq. m/gm. are modified by the inclusion of 2-18% MnO2, and 1-20% Cr2O3 while the amount of copper oxide is restricted to 2-12%.  The support may be Al2O3, SiO2/Al2O3, SiO2/MgO, ZrO2, Al2O3/ZrO2, ZrO2/MgO or an acid treated clay; a - and g -aluminas are especially suitable.  The catalysts may be prepared by the usual impregnation with soluble decomposable salt techniques.  The impregnated supports may be dried at 49-127 DEG C. for 4-48 hours followed by calcining at 540-760 DEG C. for 1-16 hours.
Patent GB-458913-A (GB)
Title: Improved means for removing oil from air or other gaseous fluids
IPC: F22B37/26
Filed: 1936-07-24
Abstract: 458,913. Separating oil from air &c. AKTIEBOLAGET SEPARATOR, 8, Fleming- gatan, Stockholm. July 24, 1936, No. 20529. Convention date, Nov. 5, 1935. [Class 123 (iii)] Compressed air, &c. carrying oil is forced through a coiled wire spring 4, which opens out under the pressure-forming slits ; the air &c. which has passed through the slits deposits the oil in a pocket 8 and a passage 9 closed by a plate spring 11 allows the oil to pass back when the flow of air &c. is stopped. The end of the spring is closed by a plate 5, or the spring may be of conical form. As the surfaces of the slits become coated, the air &c. pressure causes the coils to separate more widely.
Patent GB-853384-A (GB)
Title: Improvements in or relating to polyurethane lacquers
Inventor: BUIST JACK MITCHELL
IPC: C09D175/04
Filed: 1957-07-01
Abstract: Polyurethane coatings are produced in situ on substrates such as metal, rubber, paper, leather and fabrics by applying consecutively thereto at least one polyester or polyesteramide component and at least one polyisocyanate, the polyester or polyesteramide component being applied in the form of an aqueous dispersion free from any soap or dispersing agent other than alkali.  The dispersion may also contain a pigment, e.g. titanium dioxide, carbon black or an organic pigment.  The polyester or polyesteramide may be partially pre-reacted with a polyisocyanate.  The coatings may be cured by immersion in di-isocyanate solutions followed by heating to 100 DEG C; curing can also take place at room temperature.  In examples a diisocyanate -modified polyester amide is prepared from the reaction product of adipic acid, ethylene glycol and monoethanolamine, and hexamethylene diisocyanate; this is applied in an aqueous dispersion to rubber strips and followed by diphenylmethane-4, 41-di-isocyanate.ALSO:Substrates are coated with polyurethanes by applying consecutively at least one polyester or polyesteramide and at least one polyisocyanate, the polyester or polyesteramide being applied in the form of an aqueous dispersion free from any soap or dispersing agent, exceptting alkali.  The polyester or polyesteramide may be partially pre-reacted with a polyisocyanate.  The aqueous dispersion may be applied by spreading, dipping or spraying.  The polyisocyanate may be applied in a similar fashion as a solution or dispersion in an inert organic solvent.  The substrate may finally be heated or may be left to cure at room temperature.  Substrates which may be coated include natural and synthetic rubber, fabrics including polyethylene terephthalate and nylon, leather, paper, and metals.
Patent GB-592524-A (GB)
Title: Method for cold working annular or tubular material
IPC: B21D37/18
Filed: 1945-08-13
Abstract: 592,524. Altering physical structure. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 13, 1945, No. 20729. Convention date, Sept. 7, 1944. [Class 83 (iv)] Expanding rings.-Retaining rings for turbogenerators are expanded cold to raise the yield point of the material. A ring 6 is expanded by the passage of a punch 3 actuated by a press. Lubricant is applied to the ring by manual rotation of a screw piston 13 which forces lubricant from a container 10 to passages 7.
Patent GB-320425-A (GB)
Title: Improvements in or relating to aerials for use in wireless telegraphy and telephony
IPC: H01Q21/10
Filed: 1928-07-17
Abstract: 320,425. Franklin, C. S., and Green, E. July 17, 1928. Aerials ; directive signalling. - In directive aerials of the type described in Specifications 242,342 and 285,106, the intermediate folded portions of the wire are now so arranged that they radiate effectively in the same direction as the straight portions. As shown in Fig. 2, a straight half-wave portion A is followed by a reversed or folded half-wave porton B, and then by a straight length C, a reversed length D, and so on. The phase relation of the currents in successive half-wave lengths is indicated by the dotted lines, the reversed sections B, D, F adding to the effective fieldstrength due to the straight wire sections A, C. E. Reflection from the upper end Y of the aerial may be prevented by employing the method described in Specification 281,762, [Class 118 (ii), Signals]. A series of such radiators may form a beam aerial system arranged vertically, horizontally. or otherwise, and backed by reflectors. By varying the distances between the centres of adjacent half-wave sections, the direction of the predominat radiation may be changed angularly. In Fig. 4, the amount of reversed wire is increased so as to give a greater field strength than in Fig. 2 for the same input. In Fig. 6 the straightwire portions A, C, E are paralleled. In another arrangement the wires are arranged along the edges of a vertical hexagonal prism.
Patent GB-851346-A (GB)
Title: Process of nitriding hardenable steel
IPC: C23C8/80
Filed: 1959-06-17
Abstract: A process for nitriding steel objects comprises austenizing the objects, cooling them directly to the nitriding temperature, and then nitriding.  The cooling may be carried out by an inert or non-oxidizing gas and the austenizing and nitriding may be performed in a glow-discharge furnace.  After nitriding the objects may be cooled to produce a martensitic or bainite structure which may then be tempered.