baber/WOPTO huggingface dataset:
Patent GB-1179852-A (GB)
Title: Contact Materials for Vacuum Switches
Inventor: NAKAJIMA YOZO
IPC: H01H1/02
Filed: 1967-02-01
Abstract: 1,179,852. Vacuum switch contacts. MITSUBISHI DENKI K.K. 1 Feb., 1967, No. 4894/67. Heading H1N. [Also in Division C7] To reduce contact welding the contacts of a vacuum switch are made of an alloy of nickel with from 1-10% by weight of bismuth or tellurium or a mixture of these two elements or an alloy of nickel with from 25-50% by weight of copper and from À05 to 5% by weight of bismuth or tellurium or a mixture thereof. In making these alloys the nickel is first refined using carbon; when the other metals are added to the melt some of the carbon is precipitated and removed but the final alloys may contain from 1-2À2% and from 0À2 to 1% of carbon, respectively.
Patent GB-401545-A (GB)
Title: Improvements in or relating to electrically driven screw-drivers
IPC: B25B21/00
Filed: 1933-02-17
Abstract: 401,545. Screwing-up screws. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. Feb. 17, 1933, No. 4896. Convention date, Feb. 29, 1932. [Class 83 (iii).] Electrically driven screwdriver having a motor built in the handle driving the spindle of the screw-driver through gearing is characterised by the screw-driver spindle and motor shaft being arranged coaxially. An electric motor b carried by the handle a has a shaft c carrying a flywheel e and pinion f, the latter drives through further gearing the screw-driver spindle m the axial thrust of which is taken by the rounded end of the armature shaft. Reference has been directed by the Comptroller to Specifications 318,623 and 335,853 [both in Class 83 (iii), Metals, Cutting].
Patent GB-177661-A (GB)
Title: Improvements in swash plate driving mechanism for internal-combustion engines
IPC: F16H23/06
Filed: 1921-02-11
Abstract: 177,661. Almen, J. O. Feb. 11, 1921. Driving-gear.-A number of pairs of cylinders are arranged around the shaft 5, the pistons of each pair are rigidly connected together, and between them projects an annular swash-plate 10. The plate has in each surface an annular groove 14 in which fit ribs 21 on the half balls 20 of ball and socket joints; the cups 18 have ribs 17 which slide in radial guides 22 on the pistons.
Patent GB-273396-A (GB)
Title: Improvements in and relating to club or association insignia devices, or badges for use with motor cars and like vehicles
IPC: G09F7/18
Filed: 1927-02-22
Abstract: 273,396. Collins, D. G. Feb. 22, 1927. Badge holders. - In order that a club &c. badge device for motor cars may be attached to any part of the car it is formed with a flange b, the badge being secured to a flat surface of the car by screws passing through the flange b. To secure the badge to a radiator cap or calorimeter, Fig. 4, the fitment d shown in Fig. 3 is screwed to the flange b. To secure the badge to a bar, such as a transverse bar connecting headlights, the fitment g shown in Fig. 5 is screwed to the flange b.
Patent GB-415705-A (GB)
Title: Improvements in and relating to road vehicles, rail vehicles and the like, applicable also to conveyors
IPC: B60P1/36
Filed: 1933-02-20
Abstract: 415,705. Conveyers. FISHER, G. L., 561, Old Kent Road, and BRIGHT & GALBRAITH, Ltd., 7, Martin's Lane, both in London. Feb. 20, 1933, No. 5198. [Classes 78 (i) and 78 (iv).] A conveyer is built up of a plurality of parallel slats a which are hinged together at their ends and, by separate hinges, intermediate their ends, the hinge rods b extending the full length of the slots. The rods b have their lengths between hinges surrounded by tubes e which serve to fill the gaps. The hinge eyes are staggered to bring the hinges into line, or, alternatively, the intermediate hinges may be bodily staggered. The hinges c are attached to the slats by rivets c<1> or by welding. Fig. 4 shows a lighter form of slat consisting of a wooden core f surrounded by a metal sheath g. The core has a channel f<1> into which the middle of a binding section h is pressed after it has been slipped into place. Specification 351,410 is referred to.
Patent GB-1587375-A (GB)
Title: Partly transparent reflector for liquid crystal displays and a method of producing it
IPC: G02F1/1335
Filed: 1978-02-09
Abstract: Liquid-crystal display (1) having an illuminating element (2) and a partially transparent reflector arranged between the liquid-crystal cell and the illuminating element (2). The reflector consists of a translucent aluminium foil (3) whose surface has a scattering effect and which has holes or pores (4) in such an extent that the transmittance is 10 to 30%. This results in achievement of effective scattering in daylight and in effective illumination during night time operation, and at the same time a depolarization of the incident light is avoided. <IMAGE>
Patent GB-534593-A (GB)
Title: An improved method and apparatus for forming half-tone screen images in transparent sensitive photographic material
IPC: G03B27/66
Filed: 1940-03-21
Abstract: 534,593. Photo-mechanical printing-surfaces. KODAK, Ltd. March 21, 1940, No. 5282. Convention date, June 1, 1939. [Class 98 (ii)] A method of forming a half-tone screen image on transparent sensitive material, e.g. as described in Specification 474,911, comprises moving the material parallel to a stationary half-tone screen at a distance D1 in front of the material and moving one or a series of light sources, disposed at a distance D2 in front of the screen, in the opposite direction at a speed D2/D1 times that of the material. The diameter or width of a light source may be (D2+D1)/D1 times the width of a dark element of the screen, and when several sources are used, their centres may be separated by (D2+D1)/D1 times the screen interval. If the screen opening is a fraction F of the screen interval, the diameter or width of each source may be (I-F) times the separation of adjacent light source centres. Apparatus for carrying out the method comprises a stationary half-tone screen 12, Fig. 1, a strip of light-sensitive material 10 driven parallel to the screen by rollers 11 in an upward direction, and a strip 14 having a series of apertures 20 and driven by rollers 29 parallel to the screen in a downward direction in front of a diffusing screen 15 illuminated by a lamp 16. The apertures 20 constitute the light sources, and gearing 21 ... 28 connects the rollers 11, 29 so that the above-stated speedratio between the strips 10, 14 is obtained. Masks 13, 17 are disposed near the strips. between them and the screen 12, the width of the aperture in the screen 13 being greater than the width or diameter of a light source, and less than twice the interval between successive light source centres. The strip 14 may have two or more juxtaposed series of apertures 20. The emulsion on the strip 10 may be exposed directly or through its support. Preferably D1 is between 20 and 200 times the screen interval, and D2 is between 10 and 500 times D1. A small amount of distortion may be produced in the copied screen pattern as by moving the strips in paths not quite parallel, by making the relative speed of the strips slightly different from the above-stated value, or by varying slightly the size or separation of the light sources: and recurrent distortion may be introduced by using successive light sources having different widths or diameters. Instead of the apertured strip 14, there may be used an apertured rotatable drum enclosing the lamp 16 and screen 15, or a rotatable disc with apertures round its periphery, or an octagonal rotatable drum 32, Fig. 5, having alternate opaque faces 33 and translucent faces 34. The distribution of density in the dots of the copied screen pattern when using light sources of various sizes or shapes is discussed in the Specification.
Patent GB-585565-A (GB)
Title: Improvements in and relating to sun blinds
IPC: E04F10/06
Filed: 1945-03-02
Abstract: 585,565. Sun blinds. LISLE, U. L. O. March 2, 1945, No. 5320. [Class 20 (iii)] For sun blinds mounted outside the window and comprising material attached at one end to a roller and at the other to the transverse rail of a U-shaped frame pivoted at its ends 2 to the window frame &c., the brackets 6 in which the frame ends are pivoted have an upwardly directed slot 5 curving towards the window at its lower end within which the pivot shaft 4 moves. When the blind is lowered and the pivots fall in the slots an abutment 6<3> at the top of the brackets causes the frame to rock outwardly and open the blind. When the blind is raised the rise of the pivots in the slots causes the frame and blind to enter a box head over the window.
Patent GB-142237-A (GB)
Title: Improvements in or relating to brick kilns
IPC: F27B13/02
Filed: 1919-03-04
Abstract: 142,237. Sharratt, A. March 4, 1919. Brick-kilns.-The heating-gases are filtered through coke, which is afterwards burnt. As shown in connexion with a continuous kiln, the coke is packed into chambers f in front of the opening b in the partition walls a between the kiln chambers. A paper seal h is placed over the coke, and when this is broken at the required stage of operation, communication between the adjacent chambers is established through the body of coke in the chambers f. As the fire travels through the kiln, the coke is ignited and is allowed to burn down, so that excess air passes through the opening b and prevents overheating of the bricks until they are thoroughly dried. When the drying has been effected, the fire is built up by coke fed from the floor above in the usual manner. Secondary air may be supplied through apertures a<x> above the fires. When small coke is used, it is supported and the opening b is screened by laths i. Coke may also be packed into chambers g between the chambers f, and communicating therewith through openings f<1>, and with the kiln chamber through openings e<2>.
Patent GB-249097-A (GB)
Title: Improvements in refrigerating processes
IPC: F25B9/00
Filed: 1926-02-25
Abstract: 249,097. Davenport, R. W. March 12, 1925, [Convention date]. Refrigerating, compression processes for.-A working fluid composed of a mixture of a condensible medium, for example carbon tetrachloride, and a non-condensible medium, such as air, undergoes the cycle compression, cooling and condensation, expansion of the non-condensible medium, and evaporation of the condensible medium. The vapour-gas mixture withdrawn from the evaporator or low-temperature boiler 1 is compressed by the compressor 3, and is cooled in a condenser 4 by a counter-current of water or air. The gaseous medium expands while doing work in a device 5, for example a turbine, cooling the condensed medium before the mixture enters the evaporator. The presence of gas in the evaporator promotes normal boiling, and thereby prevents superheating of the vapour passing to the compressor. The total higher pressure may be about one atmosphere, while the total lower pressure in the evaporator may be about 6 inches of mercury. The partial pressure of the non-condensible medium preferably bears the same relation to the total pressure in the evaporator and in the condenser.
Patent GB-537725-A (GB)
Title: A process for sticking labels or the like on waxed paper
IPC: B31D1/00
Filed: 1940-03-26
Abstract: 537,725. Packing; labelling. RADO, L. March 26, 1940, No. 5381. Convention date, March 25, 1939. [Class 94 (i)] A method of sticking a wrapper, label, or the like to a wrapping made of waxed paper, consists in coating the label on one side with a water soluble adhesive, alowing the coating to dry, then moistening the coating and applying the label to the waxed paper and attaching it by the pressure of a heated tool. Specification 308,177, [Class 94 (i)], is referred to.
Patent GB-1190855-A (GB)
Title: Photographic Colour Processing
Inventor: COHEN DAVID LIONEL
IPC: G03C7/42
Filed: 1968-02-02
Abstract: 1,190,855. Photographic colour processing. ILFORD Ltd. Jan. 31, 1969 [Feb.2, 1968], No.5472/68. Heading G2C. An exposed colour photographic silver halide material is subjected successively to treatment with (i) a colour developer containing N-ethyl-N- #-hydroxy-ethyl-p-phenylene diamine as developing agent - and (ii) a bleaching-fixing bath of pH between 6 and 7 and containing a water-soluble hydrazine or hydroxylamine salt. A colour image having lower colour stain and fog is obtained. A washing step may be given after each of the above successive steps. The specified salt is hydrazine sulphate and the bleach-fix bath may also contain a fluorescent whitening agent.
Patent GB-1132891-A (GB)
Title: Improvements in or relating to analogue-to-digital converters
IPC: H03M1/00
Filed: 1966-02-08
Abstract: 1,132,891. Selective signalling. SOC. NATIONALE DES PETROLES D'AQUITAINE. 8 Feb., 1966 [16 Feb., 1965], No. 5483/66. Heading G4H. Selective voltage peaks from a mass spectrometer are individually digitized and stored by an automatic self-balancing loop which counts clock-pulses while the input is higher than a feedback voltage and which, after each peak has been digitized, this being determined by detecting when the input signal begins to fall, transfers the count to a store, there being one for each peak, zeroizes the counter and switches a different input attenuator into circuit for the next peak. The system also has the feature that if the counter overflows the whole system is reset to await the start of another cycle of the mass spectrometer.
Patent GB-894765-A (GB)
Title: Liquid applicator
IPC: B65D47/42
Filed: 1961-02-14
Abstract: 894,765. Liquid applicators; pads. COLGATEPALMOLIVE CO. Feb. 14, 1961 [March 9, 1960], No. 5499/61. Class 19. A liquid applicator comprises a container 11, Fig. 1, for liquid to be applied, a resilient flanged cup 23 fitting in the container through a walled opening 17 with the flanged open end facing upwardly and with the flange 25 above the wall 15, the cup bottom having an opening 31, Fig. 4, for passage of liquid to the cup from the container, an absorbent material 35 in the cup, a cover 37 through which liquid may pass to a surface to which it is to be applied, and a removable closure 45 including means, e.g. an annular bend 49 for pressing the flange 25 tightly against the top of the wall 15 and for holding the flange 25 against the container and the closure in liquidtight engagement when the applicator is not in use. The applicator pad, Fig. 4, is formed by the cup 23 of resilient plastic, e.g. polyethylene, inside of which is the absorbent material 35 of resilient open-celled plastic foam sponge, e.g. polyurethane foam. On top of the sponge 35 is the cover 37 of synthetic thermoplastic filaments, e.g. polyethylene, having a multiplicity of openings 39 and held in place by the sponge pressing the cover outwardly against the sides of the cup. In another embodiment the cover is heat-sealed to the flange 25 of the cup.
Patent GB-953297-A (GB)
Title: Handling machine for a nuclear reactor
Inventor: LEMESLE GEORGES
IPC: G21C19/18
Filed: 1963-02-11
Abstract: 953, 297. Fuelling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 11, 1963 [Feb. 20, 1962], No. 5520/63. Heading G6C. A reactor fuelling machine includes a magazine having compartments into which are loaded the contents of a reactor channel by means of a grab, the magazine remaining stationary and the grab being movable so as to be alignable with any one of the magazine compartments. As shown, Fig. 1, a reactor 14 within a concrete pressure vessel 12 has vertical fuel channels (not shown) served through charge tubes 24 by means of a machine 32. The machine 32 is movable in a chamber 18 along a rail 34 rotatable about a central pivot, the gas pressure in chamber 18 being maintained higher than that in reactor compartment 16. The machine 32, Fig. 2, includes a frame 36 having rollers 38 engaging the rail 34, the frame supporting a turntable 42 by means of ball bearings 44. The turntable is rotated step-wise by a motor 48 through a Geneva drive, the several steps corresponding to the compartments of the magazine 87, Figs. 4, 5. A central member on the frame 36 has a bore 52 receiving a grab 54 and a nose 64 of frusto-pyramidal form. The magazine 87 has a central member 88 with a recess 91 complementary to the nose 64 and a groove 92 engageable by the grab 54. In use the magazine loaded with sufficient fuel elements for two channels is introduced into the chamber 18 and the machine 32 is positioned above the magazine so as to be in predetermined angular relation thereto, the grab 54 being operated by a hoist 56 to lift the magazine so that it is locked against rotation relatively to the frame 36 by the engagement of the nose 64 in recess 91. The turntable 42 has upright sides forming radial guideways 70 for rollers 68 of a carriage 66 having a guide channel 76 for a grab 74 controlled by a winch 72 mounted on the carriage. A pin 82 projecting upwardly from the carriage 66 engages a guide groove 84 in the underside of the frame 36, this groove having the shape denoted by dash lines 106, Fig. 5, and comprising a figure 8 with the smaller loop folded over into the larger loop. Thus, by rotating the turntable 42 the grab 74 is brought sequentially over the magazine compartments 98 which are arranged in two concentric circles. The cross-over point of the two loops occurs at a through passage 96 of the magazine, this passage being in alignment with the charge tube 24 which is to be served. Thus in a fuelling operation the grab 74 lifts the spent elements oneby-one through the passage 96 and places them in successive empty compartments 98 by appropriate rotation of the turntable, the new elements then being similarly removed from other magazine compartments and loaded into the channel. Overlapping magazine compartments 102,104 serve to accommodate plugs. Specification 953,298 is referred to.
Patent GB-383132-A (GB)
Title: Improved arrangements for the charging of electric batteries
IPC: F41F3/10
Filed: 1932-02-24
Abstract: 383,132. Charging batteries. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Feb. 24, 1932, No. 5536. Convention date, Feb. 24, 1931. [Class 38 (iv).]. In a battery-charging arrangement involving rectifying means R a resonating circuit is arranged to affect the impedance of the C.A. side to stop the charging current at a given battery voltage. As shown in the Figure, an adjustable portion of the charging current passes through one winding of a choke CK2, which has a second winding in the A.C. circuit. The choke may be saturated less than full charging current. A condenser C in parallel with the second winding causes resonance at the supply frequency when the battery voltage has risen so much that the reduced charging current shall have sufficiently increased the inductance of the choke. In a modification a resonating circuit is arranged in the local circuit including the winding CK2 and the resistance W.
Patent GB-209977-A (GB)
Title: Improvements in fire extinguishing appliances for automobile vehicles
IPC: A62C3/07
Filed: 1923-02-27
Abstract: 209,977. Schall, H. Feb. 27, 1923. Fire-extinguishing by solutions.-For extinguishing fire at automobile carburettors a funnelshaped flame guard a disposed over the carburettor is supplied with fire-extinguishing fluid from a container b by a tube c. The guard is held in a bracket g horizontally adjustable in a slot in the arm of a holder d which is adjustably secured by a bracket f to an upright support.
Patent GB-679578-A (GB)
Title: Improvements in inflatable life-jackets
IPC: B63C9/125
Filed: 1950-03-07
Abstract: 679,578. Life-jackets. R. F. D. CO., Ltd., and MITCHELL, S. Feb. 6, 1951. [March 7, 1950] No. 5753/50. Class 77. In an inflatable life-jacket of the type comprising a buoyancy chamber and securing straps adapted to be fastened around the wearer's body, the inner side of the chamber is provided with an attachment for the straps which incorporates a spacing member which, when the jacket is inflated, automatically supports the buoyancy chamber in a position spaced outwardly from the wearer's body. As shown applied to a life-jacket (Fig. 1) similar to that disclosed in Specification 679,610, the spacing member is a rigid, semi-rigid or stiff flap-like member 13 which consists of two pieces of rubberized fabric stuck together and attached to the buoyancy chamber by means of a patch 15, the straps 11, 12 being attached to the free edge of the member 13 by sealing them between the two pieces of fabric. As applied to a lifejacket (Fig. 4) similar to that disclosed in Specification 648,308 the strap buckles 24, 25 are secured to the buoyancy chamber by spacing members 28, 29 which are attached to the chamber by means similar to that used for the member 13.
Patent GB-1484440-A (GB)
Title: Method and apparatus for making a high strength open bottom packaging tray
IPC: B29C43/00
Filed: 1975-03-03
Abstract: 1484440 Moulding packaging trays DIAMOND INTERNATIONAL CORP 3 March 1975 [21 June 1974] 5763/76 Divided out of 1484439 Heading B5A A method of making a packaging tray (such as that of the parent Specification-see Division B8) from moulded pulp or the like, the tray having a base comprising an open grid-like array of ribs having substantially vertical side walls, comprises forming a wet preform (e.g. in a suction mould) to have generally the same form as the finished product but with inverted V- shaped ribs, transferring said wet preform to a suitable die and reshaping the ribs to the desired shape by application of pressure. In the illustrated embodiment, the blank is placed in a lower die 104 made of a resilient material (e.g. silicone rubber) and the sloping wall portions 106 are deformed and made vertical on insertion of the rigid (e.g. aluminium) upper die member 150. In another embodiment (Figs. 9-16, not shown) the lower die member is rigid and the channels into which the ribs are placed have vertical walls at the bottom and the walls diverge towards the top. The upper die is made of resilient material and deforms on engagement with the lower die so as to force the pulp into the lower, vertically-walled, part of the channel.
Patent GB-1104621-A (GB)
Title: Manufacture of hydrogen peroxide
IPC: C01B15/023
Filed: 1965-02-25
Abstract: A process for the manufacture of hydrogen peroxide as in the parent Specification 1,070,911, wherein the molar ratio of anthraquinone disulphonate to hydrosulphide ion is at least 2.3 : 1 and the pH is in the range 7.0 to 8.5. The pH is controlled by a buffer consisting of a mixture of boric acid and sodium tetraborate, or by the addition of sodium hydroxide, calcium hydroxide, or hydrogen sulphide.  The hydrogen peroxide is recovered from the solution as calcium peroxide by adding calcium hydroxide to the solution after reduction and prior to oxidation and maintaining a pH of 10 to 12.6 during oxidation. The process is carried out at 20 DEG  to 30 DEG  C. and the salts of the anthraquinone disulphonic acids purified by passage through a cation exchange resin before use.