baber/WOPTO huggingface dataset:
Patent GB-897174-A (GB)
Title: Improvements in or relating to mounting arrangements for electrical equipment
Inventor: BAKER ALFRED
IPC: H05K7/14
Filed: 1959-01-28
Abstract: 897,174. Rack-mounted electrical equipment. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd., and BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Dec. 21, 1959 [Jan. 28, 1958], No. 3021/59. Class 37. A mounting arrangement for printed-circuit cards comprises substantially parallel side members held in spaced relationship, shelf-like card supports extending between the side members and each card support being channelled parallel with the front face of the arrangement to form recesses in the upper and lower surfaces thereof, guide members located in recesses of selected adjacent pairs of card supports and arranged to support side edges of cards inserted therebetween and electrical connectors positioned to engage one side edge of all or selected supported cards to effect electrical connections to the printed wiring thereon. The two side members 1, 2 between which shelves 3, 4 are suspended accommodate the printed cards, the side members being separated by spacer plates 25, 26 upon which are mounted multi-point sockets 5, 6, 7. Each shelf is located horizontally by square holes such as 12, 14, 16, 18 and slides into channels 20, 21 screwed to folded brackets 10, 11 welded to side members 1, 2. The corrugations of the corrugated sheet metal shelves form recesses and serve to accommodate guide members such as 31, 32, 33, 34, 35 screwed thereto, each guide member being of moulded resin and slotted on its outer face, the front and rear ends of the projections between the slots being chamfered as at 36, 37. Those slots which are not to be used on a particular shelf are closed by blocking pieces 51, 52, 53. Connections between the bay-to-bay wiring and the equipment on an individual rack are made on terminal blocks mounted at the front of each upright member 1, 2, on a strip 58 attached to channel 21 and carrying a bracket 59. This bracket is slotted at intervals to engage corresponding projections, such as 60, on a series of individual moulded connector elements such as 61, 62. Bay-to-bay cabling is accommodated in the channels formed by side members and their welded brackets. Apart from single cards such as 40, multiple units made up of two or more cards 79, 80, 82, 83 which may contain a screen 81 can be formed.
Patent GB-210288-A (GB)
Title: Improvements in the construction of the rotors of elastic fluid turbines
IPC: F01D5/22
Filed: 1923-02-01
Abstract: 210,288. English Electric Co., Ltd., and Chittenden, J. P. Feb. 1, 1923. Blades.-In turbine rotors of the kind in which the blades are attached by the engagement of their roots with undercut grooves in the rim of the rotor the grooves are formed at an appreciable inclination to the plane through the axis of the rotor. The blades may be formed so that their roots are parallel with the line joining the edges 4, 5 of the blade. Flanges 2, 6 are provided at their outer and inner ends and these form a locking device tending to check endwise movement of the blades.
Patent GB-1365922-A (GB)
Title: Circuits for supplying power to fluorescent lamps
IPC: H05B41/232
Filed: 1972-01-25
Abstract: 1365922 Supply circuits for discharge lamps; intrinsically safe circuits VICTOR PRODUCTS (WALLSEND) Ltd 25 Jan 1972 [25 Jan 1971 18 Nov 1971] 3094/71 and 53633/71 Heading H2H A circuit for supplying power to a discharge lamp 17 comprises parallel branches 12, 13 containing capacitive and inductive reactances 14 and 18 respectively and a third branch 21 containing a reactance 22 which forms with the reactance 18 a circuit which is at least approximately tuned to the frequency of a supply 24. The supply has a high frequency and the lamp has a low thermal capacity heater 25 connected across a resistor 20. When the source 24 is switched on there is only a small damping of the series resonant circuit 18, 22 since resistors 19, 23 are small and since the resistor 20 is shunted by the heater 25. When the lamp strikes, its low impedance shunts a high resistance 16 and damps the tuned circuit causing the voltage to fall. A power factor correcting capacitor 14 limits the lamp current and a second heater 26 may be supplied by a transformer 28. The circuit is designed so that short circuits or breakage of the lamp heater cause de-tuning of the resonant circuit with a consequential reduction in the voltage. High energy sparks are therefore not produced so that the circuit is intrinsically safe and may be used in a hazardous atmosphere.
Patent GB-1338332-A (GB)
Title: Manufacture of electrical contact members
IPC: H01H1/023
Filed: 1972-01-21
Abstract: 1338332 Powder metallurgy SIEMENS AG 21 Jan 1972 [22 Jan 1971] 3109/72 Heading C7D [Also in Division H1] A process for the manufacture of a double layer sintered electrical contact member, which comprises superimposing a first layer of powder 1 comprising silver and a metal oxide, and a second layer of powder 2 comprising copper or a copper alloy, compressing the superimposed layers, and sintering the compressed layers in an oxygen-free atmosphere at a temperature below the eutectic temperature of silver and copper or of silver and the alloy of copper. The metal oxide  used may be CdO, ZNO, SNO 2 , TiO 2 , Al 2 O 3 , NiO or CuO and the copper alloy may have between 0À1 and 6 per cent by weight of Ag. Sintering is effected at a temperature of from 750 to 770‹C. in a nitrogen atmosphere.
Patent GB-925652-A (GB)
Title: Improvements in or relating to vacuum brake installations for rail vehicles
IPC: B60T13/46
Filed: 1960-01-28
Abstract: 925,652. Vacuum braking systems. KNORRBREMSE G.m.b.H. Jan. 28, 1960 [Jan. 30, 1959], No. 3191/60. Class 103 (1). A vacuum brake installation has a pressureresponsive piston 19 controlling a valve device 31 in such a manner that when pressure in train pipe 1 is increased to initiate a braking action, air from a reservoir 35 charged to atmospheric pressure, enters the train pipe to accelerate the increase in train pipe pressure and the braking action. The stem 25 of diaphragm piston 19 has a slide valve portion 27 and an end-plate 29 co-operating with seat 33 to control the connection of reservoir 35 with train pipe 1. With the brakes released, vacuum exists in pipe 1, chambers 5 and 7 of brake cylinder 11, and chambers 15 and 21 of valve 15, the chambers 11 and 21 communicating with pipe 1 via non-return valve 9. The resilience of piston 19 maintains plate 29 against seat 33 to connect reservoir 35 to atmosphere. When the pressure in pipe 1 rises for brake application, piston 19 is raised to cut-off reservoir 35 from atmosphere and connect it to pipe I via valve 29, 33 to accelerate the pressure rise in pipe I and accelerate the brake application. Reservoir 35 ensures a predetermined pressure in train pipe 1 independently of how long valve 29, 33 is opened.
Patent GB-1399806-A (GB)
Title: Speed detection means
IPC: B65H63/028
Filed: 1973-01-22
Abstract: 1399806 Speedometers G A BLACK 27 Feb 1974 [22 Jan 1973] 3214/73 Heading G1K [Also in Division G3] Apparatus for detecting the speed of a moving rope, belt, or web comprises a shaft 8 rotatable by the rope and having a mechanism, e.g. an eccentric 9, for reciprocating an actuating member 10, 16, a coupling member 6 automatically adjustable, in a direction transverse to the direction of reciprocation of the actuating member 16, in dependence on the rope speed, and means 7 providing an output signal dependent on oscillation of the coupling member 6 by the actuating member 16, the apparatus being such that either the actuating member 16 normally oscillates the coupling member but in a predetermined position of the coupling member there is lost motion between it and the actuating member so that oscillation of the coupling member does not occur, or there is lost motion between the actuating member 16 and the coupling member 6 in all positions of the latter except one predetermined position in which the actuating member will oscillate the coupling member. As shown, a centrifugal governor 4 driven from the shaft 8 via a gear-box 5 acts via a lever 21, fulcrummed at 22, to adjust the position of the coupling member 6 in accordance with the rope speed. When the slot 11 in the member 6 is aligned with the actuating member 16, lost motion occurs. Oscillation of the coupling member 6 displaces a plunger 7 of an electric switch or an hydraulic valve to produce a visible or  audible signal indicating that the rope speed is off its predetermined value, or to initiate a control action to restore the rope speed to the predetermined value. The governor 4 has weights 14 hung on a platform 13 by pins 26, rollers 15 on the weights 14 co-operating with cam surfaces 17 on a crosshead 18 so that as the rotary speed increases the platform 13 is moved downwards against a spring 25. The rope passes over a pulley or roller (not shown) on the shaft 8, and this pulley may be The fixed axis guide pulley of a rope tension measuring device.
Patent GB-812222-A (GB)
Title: Improvements in or relating to containers comprising receptacles (for example bottles) provided with closure members
IPC: B65D41/62
Filed: 1957-01-30
Abstract: 812,222. Bottle labels. UNILEVER Ltd. Jan. 30, 1957 Feb. 15, 1956], No. 3263/57. Class 73 [Also in Group XVII] A label for a bottle 1 comprises a frustoconical paper sleeve 3, held in position between a cap 2 and a tapering portion of the bottle.
Patent GB-433676-A (GB)
Title: Process for condensing sulphuric acid from moist gases containing sulphur trioxide
IPC: C01B17/74
Filed: 1935-02-01
Abstract: In the production of highly concentrated sulphuric acid by the condensation of gaseous mixtures of sulphur trioxide and water vapour, the gases, at a temperature above 300 DEG  C. are passed upwardly through an irrigation tower, whereby a portion of their sulphuric acid content is condensed, and are then subjected to electrical precipitation to remove their residual sulphuric acid content, the acid recovered by the precipitation being employed for irrigating the tower.  In an example, a metallurgical gas containing SO2, O2 and H2O was catalyzed to SO3 by passage over a catalyst comprising vanadium oxide, potassium oxide and silica, and admitted at a temperature of 350 DEG  C. to the irrigation tower wherein the gases were cooled to 100 DEG  C.  Two-thirds of the SO3 was precipitated in the tower, the remaining gases passing to the electrical precipitator in which the whole of the acid mist was precipitated.  Sulphuric acid of 97,5 per cent concentration was obtained.
Patent GB-453228-A (GB)
Title: Method of producing polyhydric alcohol-polybasic acid type resins
IPC: C08G63/48
Filed: 1935-02-01
Abstract: Clear, homogeneous, oil-soluble polyhydric alcohol-polybasic acid resins, in which the polybasic acid content is mainly or entirely aliphatic, are manufactured by reacting glycerol with an acid or mixture of acids obtainable by hydrolysis of a fatty oil or fat, in an amount sufficient to convert substantially all of the glycerol at least to the mono-ester but insufficient completely to esterify all of the hydroxyl groups of the glycerol, and then reacting the partially esterified glycerol with a polybasic aliphatic acid or anhydride of the group consisting of maleic, succinic, malic, fumaric and tartaric acids or anhydrides, alone or together with phthalic acid or anhydride in the proportion of one mol or less to three mols of the polybasic aliphatic acid.  The reaction may be carried out in the presence of a substantially neutral extending agent which does not take part in the reaction, e.g. drying and non-drying oils, such as linseed, china wood, soya bean, castor, cottonseed or menhaden oil, substantially neutral glycerol esters of fresh or fossil resins, or substantially neutral mixed glycerol esters of fatty oil acids and natural resin acids.  In examples: (1) glycerol monolinoleic ester is prepared and reacted with \ba1/4\be mol of phthalic anhydride and \ba3/4\be mol. of maleic acid; the product is miscible with other resins and varnishes to form enamels, with or without pigments; (2) as in (1) but using more phthalic anhydride and maleic acid, while keeping their relative proportions the same; (3) and (4) the maleic acid in (1) and (2) is replaced by succinic acid; the product of (4) is stated to be compatible with other resins, natural or synthetic, and suitable for use alone or with oils, resins and varnishes, as clear coatings or pigmented as enamels; (5) soya bean oil fatty acids are heated with glycerol to form a diester, which is heated with maleic acid or anhydride; the product may be mixed with basic or other pigments for making enamels and paints; (6) the soya bean oil acids in (5) are replaced by wood oil or linseed oil acids, or mixtures thereof, or by the fatty acids of cotton seed, perilla, corn, sunflower, castor, olive, rapeseed, rubber seed or fish oil; (7) glycerol and linoleic acid are heated to form the monoester, which is heated with succinic acid; (8) glycerol dilinoleic ester is prepared and heated with succinic acid; (9) instead of the mono- and dilinoleic esters in (7) and (8) there may be employed other mono- and di-esters, e.g. those of the fatty acids of wood, soya bean, olive, sesame, rapeseed, rubber seed or fish oil, or mixtures of mono- and di-esters, or mixtures of partial esters of different fatty oil or fat acids.  Specifications 316,914 and p  337,199, [both in Class 2 (iii)], are referred to.  Reference has been directed by the Comptroller to Specification 316,914 and 337,199.
Patent GB-1249227-A (GB)
Title: A coating substrate
IPC: D06N7/00
Filed: 1969-01-21
Abstract: 1,249,227. Coating substrate. J. P. STEVENS & CO. Inc. 21 Jan., 1969 [23 Jan., 1968], No. 3328/69. Heading B5N. [Also in Division B2] A coating substrate comprises an open mesh screen 13, a non-woven fibrous web 11 engaging one side thereof and a mass of binder 15 dispersed at various positions or on the whole area on both sides of the scrim. The scrim may be woven, laid or knitted fibres of viscose rayon, polyamide, polyester or acrylic resins having a denier of 20-1260 and has as a thread count of 4 x 4-60 x 60 per inch. The non-woven web weighs 0À8-2 oz./sq. yd. and may comprise randomly disposed staple fibres, a layer of carded continuous fibres, paper or a felt of fibres having a denier of 0À75-150. Wool, hair, cotton, flax, sisal, hemp, viscose or acetate rayon, nylon, polyesters, polyurethanes and acrylic fibres are suitable. Specified binders are polyvinyl chloride, polyvinyl acetate, melamine or resorcinol formaldehyde, neoprene and thioureas.
Patent GB-230242-A (GB)
Title: An improved rotary scraping device for cleaning conveyor belts
IPC: B65G45/20
Filed: 1924-02-08
Abstract: 230,242. General Electric Co., Ltd. and Dermott, T. H. Feb. 8, 1924. Cleaning apparatus fitted to.-A scraper for cleaning conveyer belts comprises a number of strips e of rubber or other flexible material which are secured in slots in arms c projecting from bosses b secured to a rotary shaft a. Angle strips of steel may be used to support the strips e.
Patent GB-845736-A (GB)
Title: Improved brake mechanism for incorporation in monorail vehicles
Inventor: RUSTON LEONARD EDGAR
IPC: F16D49/16
Filed: 1958-02-01
Abstract: 845,736. Spring-applied brakes. ROAD MACHINES (DRAYTON) Ltd. Jan. 28, 1959 [Feb. 1, 1958], No. 3387/58. Class 103 (1). In a brake mechanism for an hydraulicallydriven monorail vehicle of the type in which the wheels of the vehicle are driven by means of an hydraulic motor or motors in the circuit of an hydraulic pump or pumps driven by a prime mover, a, brake drum is fixed to the driving-shaft coupled to a driving-wheel of the monorail vehicle, and a pair of arcuate brake shoes are adapted to be applied by helical tension-springs when the fluid pressure in the hydraulic circuit falls below a predetermined amount. In the embodiment illustrated a wheel a is provided at each end of the vehicle, each wheel having a driving-connection through chain-and-sprocket gearing a<SP>1</SP>, a<SP>2</SP> with a shaft b carrying a brakedrum e and having direct connection with an hydraulically-powered motor (not shown). The brake drum e is normally engaged frictionally by brake shoes e<SP>1</SP> under the influence of springs e<SP>4</SP>. When the pressure in the hydraulic circuit h, which connects the cylinder g<SP>1</SP> with the hydraulically-powered motor (not shown), rises above a certain pressure, the piston g is moved to the right, as shown in Fig. 1 and through toggle members g<SP>2</SP>, f<SP>1</SP>, f moves brake shoes e<SP>1</SP> to their inoperative positions. When the vehicle is stationary no pressure will be present in the hydraulic circuit h and the brake shoes e<SP>1</SP> will be applied by the spring-bias e<SP>4</SP> to prevent movement of the vehicle. Further, when the vehicle traverses down an incline the tendency for the vehicle to over-run the motors will result in a decrease in the pressure obtaining in the hydraulic circuit hand if this pressure falls below a predetermined figure the brakes e<SP>1</SP> will be automatically applied.
Patent GB-372349-A (GB)
Title: Improvements in chairs
IPC: A47C7/64
Filed: 1931-02-03
Abstract: 372,349. Chairs ; bedsteads; garment hangers. PAGET, SIR R. A. S., 1, Devonshire Terrace, London. Feb. 3, 1931, No. 3398. [Classes 52 (ii) and 52 (v).] A chair, or " other article of bedroom furniture having an upstanding portion comparable to that of the back of a chair," e.g. a bedstead, comprises a curved member b, forming the top part of the chair back and operating as a coathanger, and a superposed straight horizontal member a operating as a trouser hanger, said horizontal member being made either integral with or rigidly attached to the curved member of the chair back so as not to interfere with its normal use.
Patent GB-250537-A (GB)
IPC: C03B13/12
Filed: 1926-02-06
Abstract: 250,537. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St. Gobain, Chauny, et Cirey. April 11, 1925, [Convention date]. Rolling.-Relates to a method of making wire glass in which molten glass is rolled into a continuous sheet and wire netting, supplied continuously, is introduced into the sheet while it is being formed. In the construction shown in Fig. 1, glass issuing from a slot a in the wall of a tank or forehearth b is formed into a sheet Z by rollers c, c<1>, as described in Specification 241,206. Wire netting m, unwound from a roll q, is pressed into the sheet by a grooved roller e<1> acting in opposition to a roller e. The furrows formed in the sheet by the roller e<1> are pressed down and closed by a roller f<1>, and the finished sheet is fed into a leer. In a modification, the rolls c, c<1> are omitted, the rolls e, e<1> being placed close against the slot a so that the netting is fed into the sheet while it is being formed. In another construction, shown in Fig. 3, two sheets X, X<1> are formed from two separate tanks and these sheets are rolled together by rollers k, k<1> to form the finished sheet, the wire netting m being sandwiched between the two sheets as they pass between the rollers. The two slots a, a<1> may be formed in the bottom of a tank or forehearth, instead of in separatetanks b, b'. Rollers may be used to impress a pattern on the finished sheet if desired. The construction shown in Fig. 3 also enables the finished sheet to be made of two layers of different colours.
Patent GB-695490-A (GB)
Title: Improvements relating to housings for x-ray tubes
Inventor: CORDINGLY NORMAN CHARLES
IPC: H05G1/04
Filed: 1951-02-13
Abstract: 695,490. X-ray apparatus. NEWTON VICTOR, Ltd. Dec. 6, 1951 [Feb. 13, 1951], No. 3507/51. Class 98 (i). A housing for an X-ray tube comprises a generating tubular casing formed with a bulged portion extending longitudinally along one side of the casing and housing the auxiliary equipment associated with the tube, domed caps secured one to each end of the casing and having substantially radially directed bushings for high voltage supply leads, which domed caps are rotatable about the longitudinal axis of the housing to adjust the position of the supply leads, together with means for fixing the domed caps in the desired positions; Preferably the easing has a second longitudinal bulged portion opposite the first and housing a blower for directing air round the container, the bulged portions projecting substantially at right-angles to the direction of the X-ray beam. As shown in Fig. 1, a container 1 for an X-ray tube has oppositely placed longitudinal bulged portions 2, 3, and an X-ray transmitting window 4. Domed caps 5, 51 have bushings 6, 6<SP>1</SP> for supply cables 7, 71, and are rotatable on bearings 9, 9<SP>1</SP> at the ends of container 1. The caps may be fixed in position by clamping means such as set screws 10. Portion 2 accommodates auxiliary apparatus 11, which, if caps 5, 51 were not rotatable, would usually be housed in the ends of container 1. Portion 3 houses a blower 15 which blows air round the casing, e.g. between an inner and an outer casing. When portion 3 and motor 15 are omitted, a cover-plate may be placed over portion 2 to promote convection of air. In the casing shown in Fig. 5, an X-ray tube 17 having a rotating anode 19 driven by a motor 26 is supported in an inner casing 14. The rotatable domed caps 5, 51 for cables 7, 71 are filled with oil, the joints being sealed at 25. A motor 16 in a longitudinal bulge houses a blower 15, blowing air through the chamber containing motor 26 and out through an opening 22, and a blower 151 blows air through the chamber for the X-ray tube and out through an opening 221.
Patent GB-214029-A (GB)
Title: Improvements in hoisting winches, lifting tackle and the like
IPC: B66D1/16
Filed: 1923-02-07
Abstract: 214,029. Paterson, D. C. Feb. 7, 1923. Winches; driving- gear; self-sustaining gear; brakes.-Comprises a special arrangement and combination of parts forming a compact geared winch of the type employing selfsustaining gears in which band brakes are associated with one-way roller clutches so as to be non-effective during hoisting but which come into action automatically on the ceasing of the winding effort, the lowering of the load being effected by a slight backward movement of the winding handle which does not rotate beyond this movement while lowering is taking place. One feature of the present arrangement comprises particular means for relieving the brake band for lowering. In Figs. 1 and 2 the turning of the handle 1 in the direction for hoisting expands clutch members so that the shaft 2 is connected to a flange 7 fixed to the pinion 8 which is connected bv double-reduction spur gearing to the toothed flange 11 on the loosely-mounted drum. The flange 7 has a one-way roller clutch connection with a surrounding brake drum 15 so that the band brake on the latter becomes effective to sustain the load immediately the handle 1 is released. To lower, the handle is pressed in the reverse direction, thereby rotating ratchet wheel 21 to operate a spring pawl 22 to relieve the brake by compressing the spring 17 until the load runs down by gravity.