baber/WOPTO huggingface dataset:
Patent GB-723384-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01B1/00
Filed: 1952-08-22
Abstract: A metal layer consisting of an alloy or mixture of nickel and chromium in proportion of 80 to 90 per cent of nickel to 20 to 10 per cent of chromium, is deposited on the inner surface of the glass envelope of a cathode-ray tube by vaporization from a heated filament in a gaseous atmosphere at a pressure below 50 x 10-5 millimetres of mercury.  The layer is deposited to a thickness of 40 to 100 Angstrom units and absorbs 20 to 40 per cent of incident light.
Patent GB-1335915-A (GB)
Title: Process and apparatus for casting metal plates
IPC: B22D5/00
Filed: 1971-04-19
Abstract: 1335915 Casting machines DEMAG AG 19 April 1971 [12 March 1970] 21191/71 Heading B3F [Also in Division F4] Apparatus for casting anode plates comprises a melt supply 1, moulds 12 and 13, and vessels 5, 8 and 9 located between the melt supply and the moulds, each vessel having a pouring spout 6, 7 and 24 and being supported on means for indicating the weight of each vessel and its contents. The smaller vessels 8 and 9 are each supported by a column 25 whose base rests on a force analyser 38. Pivoting of the vessels about a pivot 27 is brought about by operation of a piston and cylinder unit 33. The larger vessel 5 is supported by a frame 21 which rests on a frame 56 which in turn rests on several force analysers 57, 58 located at the corners of the frame. It may be tilted about journals 54 so that molten metal contained therein is discharged either through spout 6 into vessel 8 or through spout 7 into vessel 9. The moulds 12 and 13 are located on casting wheels 10 and 11 respectively. The force analysers 38 enable the amount of metal supplied to each mould from the vessels 8 and 9 to be accurately measured, pouring being stopped when a given weight loss is registered.
Patent GB-618590-A (GB)
Title: Methods and apparatus for automatically processing film
IPC: G03D3/13
Filed: 1945-08-20
Abstract: 618,590. Coating webs. TRIGGS, W. W. (Diebold. Inc.). Aug. 20, 1945. No. 21234. [Class 140] [Also in Group XX] Film processing apparatus comprises a duct adapted to surround and enclose the film, rollers for feeding the film into and out of the duct, and means for circulating liquid in the duct and maintaining the liquid at constant level. As shown in Fig. 5, the film 34 is driven by rubber-covered rollers 24, 24a, 24b and 24c in co-operation with idling rubber-covered rollers 35, 36, 35a, 36a, 35b and 36b through synthetic resin ducts 50, 51 and 52 of the cross-section shown in Fig. 7 and through which the appropriate developing, hardening, or washing liquid pumped from auxiliary tanks (containing stirrers in the case of processing solutions), is circulated from the bottom to overflow arrangements maintaining a constant head of liquid in the ducts and indicated at 84a, 84b, 90a, 90b, 95a and 95b. On leaving duct 52 the film passes through the drier 55 through which air is circulated by a blower. The pressure between the rubber-covered rollers is varied by manual adjustment of the position of rollers 35, 36 &c., to increase the zone of contact in order to control the feed of the film and to allow for expansion and shrinkage thereof. On operation of a main switch, a motor-driven cam-operated set of switches under control of a film-controlled auxiliary switch effects the successive operations of (a) dumping used processing solutions from the auxiliary tanks; (b) admission of heated water to wash out the auxiliary tanks and the feed rollers; (c) dumping of wash-water; and (d) filling of the auxiliary tanks from storage tanks. On insertion of the film between the first pair of rollers into the duct 50, the film-controlled switch is operated to open the circuit to the motor-operated switch and close a circuit energizing the water heater, a valve admitting water to duct 52, a pump pumping liquid from the sump tank to waste, the film-driving motor, the blower motors, and the stirrer motors. In a modification, the auxiliary tanks are filled by hand through filter spouts.
Patent GB-687464-A (GB)
Title: High-tension and extra high-tension electric cables
IPC: H02G15/26
Filed: 1951-09-10
Abstract: 687,464. Cables. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Sept. 10, 1951 [Oct. 19, 1950], No. 21258/51. Class 36. A high-tension fluid-filled cable is provided with an internal pressure compensating device comprising a flexible tubular core formed from short rigid sections placed end-to-end which are provided with openings for the circulation of the fluid and which enclose and give complete protection to, fluid-tight, gas-filled elastic compensators. The sections 12 may each have end walls 13, 14, one or both of which has a convex external surface. Bellows 15, having one end closed, are secured at the other end in a fluid-tight manner to wall 14, in which a valve 17 is provided for filling the bellows with gas. The end wall 13 acts as an axial stop for the closed end of bellows 15, and is provided with holes 19 for the passage of the insulating fluid. One of the end walls of each section 12 may be provided with a central boss 22 which fits into a complementary orifice in the end wall of the adjacent section. The sections may lie within the stranded tubular conductor of a single core cable, or they may be assembled within a flexible pervious pipe 23 which is laid up together with the cable cores.
Patent GB-1475434-A (GB)
Title: Beverage filter
IPC: A47J31/06
Filed: 1975-05-19
Abstract: 1475434 Beverage filter R O WINBERG 19 May 1975 21357/75 Heading A4E [Also in Divisions B1-2] A filter for preparing a beverage e.g. tea comprises a top plate 1 having a circular opening with an edge 2 and a member glued or welded to the plate around edge 2 and lying within the opening in a storage position of the filter and being adapted to be pressed open to a position of use to form a receptacle, the member comprising a polyester plastics sheet 4, 5, 6 which has a number of cuts in either a spiral or circular array of lines, the cuts producing a net-like side wall 9 when the member is pressed to the position for use, Fig. 3. A disc 3 of material similar to that of the plate 1, i.e. cardboard or plastics, may be provided to form the bottom wall of the receptacle.
Patent GB-125344-A (GB)
Title: Improvements in Separators for the Treatment of Coal, Clays, Ores and the like.
Inventor: DRAPER JOHN MARRIOTT
IPC: B03B5/62
Filed: 1918-12-23
Abstract: 125,344. Draper, J. M. Dec. 23, 1918. Upward-current classifiers.-In an upwardcurrent classifier in which the material to be treated is supplied to an inner inverted conical chamber having a downward extension, the material is fed through a hopper 2 having a telescopic extension 6, 9 whereby the point of delivery of the material to the conical chamber 15 and tube 18 may be varied. Water for the upward current is admitted to the outer vessel, preferably tangentially, through an opening 5, and the light material is carried off through a circular overflow 3 the size of which is varied by means of a conical member 21 vertically adjustable on the tube 9. The outer vessel 1, from the bottom of which the heavier material is discharged, is preferably connected through a pipe 7 with a balancing column of liquid which may be arranged as described in Specifications 1849/15 or 111,826. In some cases, a screw conveyer 12 may be provided to assist the feed of the material.
Patent GB-696342-A (GB)
Title: Improvements in electrical distribution boards
IPC: H02B1/056
Filed: 1951-09-14
Abstract: 696,342. Switchboards. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 14, 1951 [Sept. 14, 1950], No. 21652/51. Class 38 (v) [Also in Group XXXVI] A distribution board for mounting circuit-breakers, adapted to be connected to the branch circuits comprises busbars 1, 2, 3, insulated by coatings 6a and mounted in a stack. Each busbar has at least one contact element extending therefrom to the front of the stack. The busbars have pairs of socket contacts 24, 19, 22, respectively, the sockets 19 passing freely through holes 20, 21 in the busbars 1, 2 and the sockets 22 through holes 23 in the busbar 1. The upper ends of the busbars are supported in an insulating housing 17 on an insulating support 6 in a tray 4, the lower terminal ends 8, 9, 10, being clamped by a screw 13 between the base of an insulating housing 12 and a shoulder on a terminal 14, the latter having an opening 14<SP>1</SP> for receiving a wire which is clamped by a grub screw. Lugs 16 on the tray 4 clamp the housings 12 against an insulating support 5. A circuit-breaker 26 to be mounted on the board has a pin 28 for engaging a socket, e.g. 24, and a recess 30 whereby it is secured to the tray 4 by a clip 29 and screw 31. In a modification Fig. 8 (not shown) the busbar contacts comprise blades bent up integrally from the busbars to engage jaw contacts on the circuitbreakers. In another arrangement Fig. 6 (not shown) the contact sockets are internally threaded and co-operate with screws. The busbars may alternatively be embedded in a body of insulating material as disclosed in Specification 696,340.
Patent GB-780724-A (GB)
Title: A method of manufacturing electric asymmetrically conductive systems
IPC: H01L29/00
Filed: 1953-08-24
Abstract: 780,724. Semi-conductor devices.LICENTIA PATENT-VERWALTUNGS-GES. Aug. 24, 1953 [Aug. 18, 1952], No. 21704/55. Divided out of 780,723. Class 37. A method of making an asymmetrically conducting device comprises imparting to at least one region of a semi-conductor body, e.g. Ge or Si of one conductivity type conductivity of the opposite type by passing a thermal forming current into the region through an electrode in contact therewith and then removing a surface layer at least of the converted region. The surface layer may be removed by chemical etching, e.g. using a mixture of HF,HN0 3 ,CU(N0 3 ) 2  and water as etchant for Ge, or by electrochemical etching using as electrolyte e.g. a 10-70 per cent aqueous solution of H 3 PO 4  on Ge, the treatment being preferably effective over the entire surface of the body and being carried on longer on the unconverted regions. After etching the body is subjected to heat, preferably in vacuum or a protective atmosphere. In the embodiment two converted regions 8, 9 are formed which overlap, the etching being carried on until the overlapping region is removed and the nearest parts of the converted zones are a few Á or a few 10Á apart. Pointed electrodes 12, 13, at least the contact surfaces of which consist of nickel, nickel alloy or a noble metal or alloy thereof, particularly gold, are inserted into the respective cavities produced by the electro forming. Additional electrodes may also be placed on the unconverted regions adjacent the cavities.
Patent GB-1286058-A (GB)
Title: Improvements in or relating to looms
IPC: B65G17/20
Filed: 1971-04-19
Abstract: 1286058 Travelling wave shedding loom RUTI MACHINERY WORKS Ltd 19 April 1971 [13 Feb 1970] 21755/71 Addition to 1154115 Heading DIE In a travelling wave shedding loom wherein shuttles 18 are propelled by oscillating blades 19 and guided by slots 11 in guide members 38, exits 15 leading from the slots 11 to further slots 14 are provided such that if the shuttle jams it will be pushed by the member 19 into the further slot 14. When the shuttle arrives in the further slot 14 it pushes an electrically conductive member 17 against the metallic guide member 38 to complete a circuit which actuates a relay 24 to stop the loom and give a warning. Both the shuttle and the guide members 38 may be of plastics material, or the guide members may be metal.
Patent GB-765652-A (GB)
Title: Implement connection for tractors
IPC: A01B63/118
Filed: 1954-07-26
Abstract: 765,652. Agricultural implements. ALLISCHALMERS MANUFACTURING CO. July 26, 1954 [Aug. 13, 1953], No. 21792/54. Class 6(1). A hitch device for connecting an implement 33 having a hitch tongue 13 with a tractor provided with lift arms 4 comprises self-latching and manually releasable coupling means on the tractor co-operating with a coupling loop 44 on the tongue 13 and separable connecting means connecting the lift arms with the implement. As shown in Fig. 1, the loop 44 is engaged by a pivoted latch member 19 having a hook portion situated in a bell-shaped housing 12 mounted on a hitch yoke 2. The latch is so shaped that when the tractor is backed up to the implement the loop 44 is engaged by the latch and is released by means of a foot pedal 29 connected to the latch by a chain 32. The lift arms 4 are connected to lift links 39 mounted on the implement by means of sockets 41 which are fitted in the ends of the lift arms and retained in position by a withdrawable pin 42. In a modification means are provided for automatically separating the lift arms from the lift links when the loop 44 is disengaged from the latch 19. A box-shaped body 49 is mounted on each lift arm and is formed with a jaw 58 for receiving a cross pin 59 mounted on the end of the lift link. A spring-urged latch 64 is pivoted on the body 49 and holds the pin 59 in position and is provided with a pin 69 which abuts against the forked end of the lift link to raise the latch and release the lift arm and lift link when the two are in alignment which occurs when the loop 44 has been disengaged from the latch 19. Specification 765,653 is referred to.
Patent GB-241170-A (GB)
Title: Improvements in reels for cables
IPC: B65H75/14
Filed: 1925-09-01
Abstract: 241,170. Decombe, G. Oct. 7, 1924, [Convention date]. Reels. - A dismountable metallic reel for metallic, electric, or telephone cables or the like consists of two stamped sheet metal discs b, g, Fig. 1, a cylindrical rolled sheet drum h the edges of which do not quite meet and an axial tube a on which the discs are mounted. The discs are secured in place at one end by a nut e shrunk or screwed on the tube and carry a locking pin d, and at the other end by a nut f screwed into the tube a by means of fingers k or by means of holes m, Fig. 5 serving for the engagement of a lever. A groove r may be provided on the nut f to take a driving belt for rotating the drum. By using tubes a and drums h of suitable length a drum of any required size may be obtained. The discs have flanges to form a rolling rim and slots p held in position by iron hoops q are arranged to protect the cable &c.
Patent GB-244520-A (GB)
Title: Improvements in or relating to flying and other boats or vessels
IPC: B64C35/00
Filed: 1924-09-17
Abstract: 244,520. Saunders, S. E. Sept. 17,1924. Hulls.-The hulls of high speed craft having hydroplane surfaces on the bottom have corrugations c formed on the bottom with stepped sections d, e comprising a substantially vertical portion j with horizontal portions k, l extending in opposite directions an upward inclined section m connecting the two horizontal sections. The plates forming the bottom are riveted or screwed together at o and are also similarly secured to stringers g which are themselves carried on transverse frames. The corrugations on opposite sides of the keel may be relatively staggered. The invention may be applied to the hulls of light craftt other than hydroplanes .and also to aircraft, and in particular to planes, rudders, tail planes and elevators.
Patent GB-736833-A (GB)
Title: Improvements in pneumatic conveying systems
Inventor: BURTON HENRY
IPC: B65G53/66
Filed: 1953-08-10
Abstract: 736,833. Pneumatic conveyers. SIMON HANDLING ENGINEERS, Ltd. Aug. 6, 1954 [Aug. 10, 1953], No. 21998/53. Class 78 (1). Air is allowed to escape from a conveying system at a controlled rate without carrying any conveyed material with it through an insertion comprising a number of spaced rings b, each in the form of a frustum of a cone, so disposed that the air escaping between them has its direction of motion substantially reversed. The rings are secured to bars a. The space around the rings is divided into compartments c, d, e, each of which has an outlet f controlled by a valve g.
Patent GB-640777-A (GB)
Title: Improvements in the bobbins of ground ropes for trawling gear
IPC: A01K75/06
Filed: 1948-08-20
Abstract: 640,777. Fishing. MOWATT, J. Aug. 20, 1948, No. 22004. [Class 48] A trawl - gear ground-rope bobbin comprises a rubber tyre 1 clamped between two metal discs 2 fitted upon the central metal tube 3 through which the ground rope passes, resilient or rubber ring 4 being inserted' between the tyre and the metal tube. The discs may be secured to the tyre by pins 6.
Patent GB-678996-A (GB)
Title: Crankshafts for multi-cylinder engines
IPC: F16C3/20
Filed: 1950-09-08
Abstract: 678,996. Crank shafts. TRIUMPH ENGINEERING CO., Ltd., and TURNER, E. April 19, 1951 [Sept. 8, 1950], No. 22152/50. Class 80 (ii). A crank shaft for an internal-combustion engine with two in-line cylinders comprises two cast-iron parts 11, 12, each having a main shaft portion 13, a crank pin 14 and a flywheel portion 15, the two portions 15, which spigotally engage each other, being secured together by bolts 20 passing through their rims 16. The portions 15 have webs 17, with balancing portions 18, so that, when bolted together, they provide a closed chamber 23 for oil which has access through passages 25 to the bearing surfaces. In the case of a four-cylinder in-line engine, the two parts 11, 12 are connected by an intermediate part having a central main shaft portion, two crank pins and end flywheel portions.
Patent GB-743290-A (GB)
Title: Improvements in damp-proof courses or trays for cavity parapet walls
IPC: E04B1/70
Filed: 1953-08-12
Abstract: 743,290. Walls. SHILLABEER, E. R. Aug. 12, 1954 [Aug. 12, 1953], No. 22269/53. Class 20(4). A rigid tray 5 formed from flat metal strip, and adapted to extend horizontally between courses across the cavity 3 of a parapet wall 1, 2 to form a damp proof course, has edges projecting outside the wall which are turned down to form water deflecting flanges 6, the ends of the trays being bent up to form flanges 7 so that abutting flanges of adjacent trays can be secured by a capping 8. At the corners of the wall the trays are made substantially L-shape in plan. The trays are treated to render them resistant to corrosion.
Patent GB-1466546-A (GB)
Title: Process for the preparation of tricyclo 5-3-1-0-3,8- undecane
IPC: C09K23/00
Filed: 1975-05-22
Abstract: 1466546 Tricyclo[5,3,1,0<SP>3,8</SP>]undecane KAO SOAP CO Ltd 22 May 1975 [31 May 1974] 22275/75 Heading C5E [Also in Division C2] Tricyclo[5,3,1,0<SP>3,8</SP>]undecane is prepared by isomerizing 6,7-exo-trimethylene bicyclo(3,2,1)- octane at - 30 to +100 C. in the presence of one or more Br°nsted acids in amount 0À1-100 moles and/or one or more Lewis acids in amount 0À01-0À5 moles per mole starting material, and terminating the isomerization when the content of tricyclo[5,3,1,0<SP>3,8</SP>]undecane in the reaction mixture is at least 30 wt. per cent. Suitable Br°nsted acids are H 2 SO 4 , fluorosulphonic, chlorosulphonic, methanesulphonic, trifluoromethanesulphonic, ethanesulphonic, benzenesulphonic and p-toluenesulphonic. The Lewis acid may be BF 3 , an aluminium halide or antimony pentahalide.
Patent GB-917037-A (GB)
Title: Opaque glass and semi-conductive device made therefrom
IPC: C03C27/02
Filed: 1960-06-24
Abstract: 917,037. Semi-conductor devices. CORNING GLASS WORKS. June 24, 1960 [July 1, 1959], No. 22295/60. Drawings to Specification. Class 37. [Also in Group XXIII] A glass consisting essentially of is opaque to radiation of wavelength 0.2-2 microns and is suitable for the envelope of a semi-conductor device. It is suitable for fusing to electrode leads of molybdenum or ironnickel-cobalt alloy.
Patent GB-989114-A (GB)
Title: An attachment for harvesting maize
IPC: A01D45/02
Filed: 1962-06-08
Abstract: 989,114. Maize harvesters. ETABLISSEMENTS BRAUD S.A. June 8, 1962 [June 12, 1961], No. 22329/62. Addition to 984,356. Heading A1F. A maize harvester comprises two gatherers 9 which are pivotally linked by pivot 10 and links 11 to a transverse shaft 13 secured to the casing 14 of conveyers 1, 3 which are supported on a combine harvester by clamps 5 and struts 7. Jacks 15 are arranged to raise the gatherers and springs 21 associated with the jacks tend to urge the gatherers upwards to that the skids 20 ride easily over rough ground. The spacing of the gatherers may be varied as determined by holes 19 in the horizontal bar 16 to which they are secured.
Patent GB-1431015-A (GB)
Title: Disposable mixing syringe assembly
IPC: B01F15/02
Filed: 1973-05-10
Abstract: 1431015 Mixing apparatus DENTIPRESSIONS INC 10 May 1973 [18 May 1972] 22351/73 Heading B1C [Also in Divisions A5, A6 and F1] A disposable mixing syringe assembly comprises a syringe barrel 10 containing a first component of a mixture to be formed, a sealed insert package 20 formed of puncturable material and containing a second component of the mixture sealed therein, the insert package 20 having a flanged portion 21 and a portion 22 depending therefrom in which the second component is present, flanged portion 21 serving for mounting the insert package 20 in a fixed position at an opening at one end of the barrel 10 with portion 22 within the opening, the insert package being accesible for puncturing in this position by means applied from outside the 'barrel 10 to provide for the passage of the second component into contact with and for mixing with the first component, and an outlet 11 at the opposite end of barrel 10 for egress of the mixture when formed in the barrel. The barrel 10 may be made of artificial resin, and the outlet 11 may comprise a flexible nozzle with a small orifice 12 and a removable cap 16. At its upper end, barrel 10 is formed with an elongated flange 13. The flanged portion 21 of insert 20 can be sealed and held in place on the flat top 15 of flange 13 and is made of a puncturable foil or sheet of e.g. styrene in which is formed, as by vacuum forming, a cup 22 with an annular ridge. Cup 22 is sealed, as by heat sealing with an adhesive, by a puncturable overlapping sheet 24 of e.g. aluminium or paper-backed aluminium, upon which instructions may be printed. The barrel 10 and the insert 20 is placed in an envelope ready for use. In use, a paddle-like tool (30) (Fig. 3, not shown) is pushed through the insert 20 into the barrel so that the second component flows into the barrel, the components are mixed on rotation of the tool (30). A plunger is used to expel the mixture through orifice 12, cap 16 being removed. Alternatively, the plunger may be replaced by a floating piston operated by pressure of air admitted through a control valve fixed to the end 25 of the barrel. The syringe may be used for applying a layer of dental impression material to the teeth, a layer of backing material being afterwards applied.
Patent GB-857355-A (GB)
Title: Improvements in metal bending devices
IPC: B21D7/08
Filed: 1958-07-14
Abstract: 857,355. Making fish plates for mine roof supports; curving. THYSSEN-HUTTE A.G., A. July 14, 1958 [July 12, 1957], No. 22554/58. Classes 83 (2) and 83 (4). A profiled bar is curved by being pushed through a curved die of the cross-section of the bar. To make curved fish plates 1, Figs. 1, 2, for mine roof support structures, bars 12 are rolled to the required cross-section, cut to size, stacked in a magazine 11 and pushed, by an hydraulic piston-rod 10, in succession from the base thereof through a curved die 4 of the cross-section of the bar. Each bar 12 bent by passage through the die 4 is pushed therefrom by the succeeding bar to a position below punch means 13 which punch four holes 2 in the curved bar. The die 4, which is in two halves and has a lubricating recess at a neutral bending area thereof, is shaped to have a rectilinear input guide zone I with rounded entry edges, a bending zone II of gradually increasing curvature, and a curved exit guide zone III. The bars may be bent hot or cold.