baber/WOPTO huggingface dataset:
Patent GB-1487352-A (GB)
Title: Method of chromizing a niobium containing steel substrate
IPC: C23C10/40
Filed: 1974-08-13
Abstract: 1487352 Chromizing Mb-containing steel ALBRIGHT & WILSON Ltd 13 Aug 1974 35575/74 Heading C7A and C7F A process for chromizing at least partially killed sheet steel, containing:- where 1 # Z # 83 and 0À1 # A # 1, in a protective atmosphere in the pressure of a source of chromium and a chromizing energizer is described, see also Specifications 1023224, 1146594, 1184183 and 1319801. The chromized steel is suitable as a cheap replacement material for stainless steels in automative silencers and other corrosion resistant applications where good formability is required. The source of chromium and the energizer may be chromous chloride or ferro chromium and a halide, and an adhesive layer may be formed on the surface of the substrate prior to deposition of the chromium and subsequent diffusion in a protective atmosphere.
Patent GB-849622-A (GB)
Title: Improvements relating to colour and monochrome television transmitters and receivers
Inventor: BILLIN JAMES JOHN
IPC: H04N5/44
Filed: 1955-12-13
Abstract: 849,622. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 12, 1956 [Dec. 13, 1955], No. 35695/55. Drawings to Specification. Class 40(3). The invention relates to a television system for the selective transmission of colour or monochrome signals in which during the transmission of colour signals, which is effected with the aid of a chrominance subcarrier, the frequency difference between the main vision carrier and the chrominance subcarrier is arranged to be a simple fraction (i.e. the ratio of two integers each less than ten) of the difference between the main vision carrier and a sound carrier so that, at a receiver, a homodyning oscillation for detecting the subcarrier may be derived by reference to the latter difference frequency. In accordance with the invention, in such a system, during the transmission of monochrome signals, the frequency difference between the main vision and sound carriers is changed slightly from that which prevails during colour transmission, and in a receiver a device responsive to the difference is employed to disable the chrominance channel by reducing its gain so that noise in the channel does not disturb the monochrome picture. The homodyning oscillation is derived by a regenerative frequency divider supplied with the main vision and sound intermediate frequencies and the device may detect the change in frequency difference as reflected in the output of the divider. Alternatively, the device may be operated from the sound main or intermediate frequency carrier, or from a frequency discriminator circuit to which are applied the main vision and sound carriers. The frequency differences between the subcarrier and the main vision and sound carrier are preferably'each made equal to an odd integral multiple of half line frequency, an example being quoted for the 405 line system.
Patent GB-782405-A (GB)
Title: Improvements relating to electromagnetic relays
IPC: H01H50/04
Filed: 1955-12-14
Abstract: 782,405. Electromagnetic relays ; contactmembers for switches. WESTINGHOUSE AIR BRAKE CO. Dec. 14, 1955 [Dec. 14, 1954], No. 35861/55. Class 38 (5). In a relay including the features disclosed in Specifications 773,852 and 775,421 in which an armature 6 is attracted towards L-shaped polepieces 3, 4 to operate contact springs 44 through a member 15, the moving contact blade supports 54 and the fixed contact blades 43 are mounted in pairs in rectangular apertures 42 in an insulating block 16. Each aperture receives a pair of insulating channel-section blocks 82 having projections 81 engaging an opening 80 in a blade 43 or 54 and the faces 86 of the blocks are inclined to receive a wedge 83, so that when the blocks and blades are inserted into an aperture 42 until the blocks engage a bridge 87 extending thereacross and a bolt 85 is then threaded into the wedge, the blades are clamped between the blocks 82 and opposite walls of the aperture 42. Indexing pins 73 which may be positioned at selected locations co-operate with corresponding holes in the plug-in base (Figs. 1a, 2, not shown) and ensure that only the correct relay may be plugged into the base.
Patent GB-1254840-A (GB)
Title: Improvements in or relating to fail-safe electric motor control systems
IPC: H02H7/09
Filed: 1970-07-24
Abstract: 1,254,840. Controlling D.C. motors. JAMESBURY CORP. 24 July, 1970 [6 Oct., 1969], No. 35960/70. Heading H2J. A motor 54 rotates in one direction to drive a valve 62 into one of its operative positions (i.e. the closed or open position) when the motor is energized from an A.C. source 11 through a transformer 20 and rectifier bridge network 24, 26, 28, 30. It is important that the valve 62 should not be immobilized in this position due to failure of the source 11 and hence an auxiliary power supply is provided to rotate the motor 58 in the reverse direction to drive the valve to its other operative "safe" position. This auxiliary supply comprises capacitors 34, 36 which are charged by the rectifier bridge when the switch 16 is closed to cause operation of the motor by the source 11. The source 11 also energizes a relay 58 from the transformer secondary winding 22 so that relay contacts 38, 40 engage fixed contacts 44, 48 and the motor current flows through a limit switch 52 which opens when the valve reaches the end of its travel. Failure of source 11 de-energizes relay 58 so that the contacts 38, 40 move to the position shown and the capacitors 34, 36 discharge through a circuit including limit switch 50 to drive the motor 54 in the reverse direction. The relay 58 may be replaced by solid state circuitry.
Patent GB-430579-A (GB)
Title: Improvements relating to liquid fuel injection pumps
IPC: F02M59/46
Filed: 1933-12-22
Abstract: 430,579. Fuel-injection pumps. SIMMS MOTOR UNITS, Ltd., Percy Buildings, Gresse Street, Rathbone Place, London, and L'ORANGE, R., 25, Sattlerstrasse, Stuttgart, Germany. Dec. 22, 1933, No. 36158. [Class 102 (i)] In order to prevent drip at the injection nozzle, the delivery valve 8 is provided with a collar 18 arranged with clearance in the bore 19 and acting as a dash pot to delay closing of the valve. Alternatively the valve may have a projection entering a cylinder which is connected to a source of low pressure. In a further modification, the pump plunger 2 has an extension 25 which after the opening of the spill ports projects into the recess 24 in the valve 8 and retards the closing. Several of these valves may be arranged in the delivery pipe. Specification 420,840 is referred to.
Patent GB-361131-A (GB)
Title: Improvements in or relating to the electrical interlocking of flameproof switches with plug and socket fittings
IPC: H01H9/04
Filed: 1930-12-01
Abstract: 361,131. Protective cut-out arrangements and control of motors. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Dec. 1, 1930, No. 36199. Convention date, March 11. [Classes 38 (iii) and 38 (v).] Safety arrangements.-In installations in which a flame-proof electric switch is electrically interlocked with a plug - and - socket power coupling in such a manner that the main circuit is interrupted only at the switch, current for the switch release is taken directly from the mains on the main's side of the switch and is led across only one additional pin of the plug member. As shown in Fig. 1, the main switch 1 has a pair of leading auxiJiary contacts 2, 7 which complete the circuit of a releasing coil 3 through an additional short pin 5 attached to the power plug 4. Thus the switch can only be retained in the closed position if the power plug has been fully inserted and on withdrawal of the plug while carrying the current of the motor 6 the switch is released by the breaking of the coil circuit 3 at the short plug 5 before the main plug members 4 are fully withdrawn. The arrangement according to the invention may be suitably modified, Fig. 2 (not shown), for installations where two or more plugs in series are employed.
Patent GB-629300-A (GB)
Title: Improvements in electrical snap acting switches
IPC: H01H3/60
Filed: 1946-12-07
Abstract: 629,300. Snap-action switches. COOK, F. L. Dec. 7, 1946, No. 36228. Convention date, Dec. 8, 1945. [Class 38(v)] A tumbler switch comprises an insulating base 10 containing bent resilient contact carrying arms 13, 14 secured at one end by terminals 15, 16, and stressed to bear at their free ends against a projection 10<SP>2</SP> on the base. The latter projection, together with a projection 10<SP>1</SP> form bearings for pintles 12<SP>1</SP> of the tumbler 12. A movable contact carrying plate 18 pivoted in a groove 17 in the base and connected by a flexible strip 20 to a terminal 19, Fig. 9, has a slot 18' engaging a telescopic link 29 of a spring toggle pivoted to the underside of the tumbler by a pointed member 29<SP>2</SP>. Movement of the tumbler to either side of the dead-centre causes the plate 18 to make contact with arm 13 or 14 urging it away from the projection 10<SP>2</SP> against an abutment 10<SP>3</SP>, Fig. 4. The contacts on the plate and arms may be of silver, and rubber inserts 22 are provided for arresting the tumbler. Fig. 13 shows a single pole switch in which the movable contact plate 18 has a stop 26 engaging an abutment 10<SP>3</SP>, and a contact arm 13 is held rigid between the projections 10<SP>1</SP>, 10<SP>2</SP> and another abutment 10<SP>3</SP>. In Fig. 17 (not shown), the contact plate is resilient and rigidly secured to the base, alternatively a rigid contact plate may be secured by a flexible element. Fig. 11 shows a flush-mounted switch in which the movable contact plate 18 is pivoted at its upper end 18<SP>2</SP>. In Fig. 12 the movable contact 18 is tubular and pivoted at 24.
Patent GB-1364684-A (GB)
Title: Planar air gap hysteresis motor
IPC: H02K15/02
Filed: 1971-08-02
Abstract: 1364684 Making stators LICENTIA PATENT-VERWALTUNGS-GmbH 2 Aug 1971 [1 Aug 1970] 36260/70 Heading B3A [Also in Division H2] In making the stator of a 3-phase planar air gap hysteresis motor (see Division H2), a plurality of preformed coils 3 are arranged on the circumference of a circle and then an iron strip 11 is wound through the coil windows to build up an annular core occupying the coil windows, the core and coils are then embedded in casting resin 30, Fig. 3 (not shown), leaving spaces [X] on one side of the core between adjacent coils, and then the spaces are filled with an iron powder-casting resin mixture to form core teeth 35, Fig. 4 (not shown).
Patent GB-1028349-A (GB)
Title: Improvements in or relating to the de-watering of the forming wires of paper making machines
Inventor: HILL HARRY WILLIAM
IPC: D21F1/48
Filed: 1963-09-14
Abstract: 1,028,349. Paper-making apparatus. MILLSPAUGH Ltd. Sept. 7, 1964 [Sept. 14, 1963], No. 36262/63. Heading D2A. A de-watering device for the wire 1 of a papermaking machine comprises an element 15 of aerofoil section mounted transversely below the wire so that the headbox end of the element is spaced from the wire with contact being made with the wire towards the other end of the element, there being perforations extending through the element through which water from the wire passes. The element is mounted at one end by stem 14 in pivot hole 11 and at the end by stem 18 which can move vertically in hole 16. The height of the element can be altered by screw 7 and its inclination with respect to the wire by screws 21. A suction chamber may be formed beneath the element to collect the water, Figs. 5 and 6 (not shown). The perforations may be holes or slots, while the element 15 may take various shapes, Fig. 7 and 8 (not shown). The element may be situated between table rolls, or a series of the elements may support the wire themselves.
Patent GB-802022-A (GB)
Title: Dioxolanes
Inventor: WILLIAMS LESLIE
IPC: C07D317/20
Filed: 1955-12-19
Abstract: A 1,3-dioxolane is prepared by reacting a polyhydric alcohol with an aldehyde or ketone in the presence of a carboxylic acid having a dissociation constant not less than 5 X 10-2.  The compound reacted with the polyhydric alcohol may be an aliphatic ketone such as acetone or methyl ethyl ketone, an aromatic ketone such as acetophenone or benzophenone, a cyclic ketone such as cyclohexanone or unsaturated ketone such as methyl vinyl ketone, methylisopropenyl ketone, or mesityl oxide, diacetone alcohol; or a saturated or unsaturated aliphatic or aromatic aldehyde. Preferred alcohols are glycols such as ethylene glycol, propylene glycol, butylene glycols, glycerol, glycerol monoacetin and glycerol a -chlorhydrin.  When glycerol is used the formation of six-membered rings may be suppressed by the addition of copper salts to the reaction mixture. Suitable acids are those which have one or more electrophilic groups adjacent to the carboxyl group, e.g. dichloroacetic acid, trichloroacetic acid and oxalic acid.  The reaction is preferably carried out at a temperature below 80 DEG  C.  When the reaction is complete the catalyst is neutralized, preferably with ammonia.  The reaction may be carried out in the presence of inert dehydrating agents such as anhydrous sodium sulphate or anhydrous magnesium sulphate.  In cases where the higher boiling and less water-soluble carbonyl compounds are used the reaction may be carried out by refluxing in the presence of an azeotropic entrainer such as benzene, toluene, petroleum spirit or methylene dichloride.  In the examples: (a) glycerol is mixed with acetone, oxalic acid and anhydrous cupric sulphate are added and the mixture is heated to 45 DEG  C.; 2,2-dimethyl-4-methylol-1,3-dioxolane is separated from the resulting mixture; and (b) glycerol is mixed with methylethylketone; oxalic acid and cupric sulphate are added with benzene and the mixture is refluxed; 2,2-dimethyl-4-methylol-1,3-dioxolane is separated from the resulting mixture.
Patent GB-920371-A (GB)
Title: Improvements in the manufacture of footwear
IPC: A43B23/16
Filed: 1959-10-27
Abstract: 920,371. Stiffening shoes. BRITISH BATA SHOE CO. Ltd. Oct. 27, 1959 [Nov. 24, 1958], No. 36355/59. Class 17 (2). Shoes &c. are stiffened by impregnating a porous fabric with uncured synthetic resin, cutting out stiffener inserts, applying a chemical hardener, applying uncured synthetic resin to the portions of the footwear to be stiffened, and thereafter, and before the resin has hardened securing the inserts to the portions to be stiffened and moulding to shape the shoe with the stiffener. The fabric may be hessian and be treated with an aqueous dispersion of urea formaldehyde resin incorporating fillers, e.g. cornflour, woodflour, starch, or maize meal, and a plasticizer e.g. rubber latex. The hardener is preferably a salt of a strong acid and a weak base, e.g. the chloride, sulphate, nitrate, thiocyanate, or oxalate of ammonia.
Patent GB-1308722-A (GB)
Title: Apparatus and method for monitoring a fluid pressure system
IPC: G01M3/28
Filed: 1971-08-03
Abstract: 1308722 Testing pipelines for leaks TEXTRON Inc 3 Aug 1971 [17 Aug 1970] 36375/71 Heading G1S [Also in Division G3] In a system for monitoring pressure in a pipeline to detect fracture of the pipeline, an additional drop in pressure occurring during a predetermined time interval after detection of an initial predetermined pressure drop is separately detected to  initiate, e.g. closure of a valve, stoppage of a compressor or sounding of an alarm. In the system shown, selector valve 17 admits the higher of upstream and downstream pressure at valve 10 in pipeline 11 to line 23 connected to accummulators 22, 24 via check valve 28 and valve 43 respectively. When an initial pressure drop occurs in the pipeline, this is applied due to check valve 28 across valve 30 causing the latter to admit fluid from line 18 to valve 32 which in turn admits fluid from line 18 to valve 43 which shifts to disconnect accumulator 24 from line 23 thereby retaining the current line 23 pressure in accumulator 24. Valve 43 also acts to bypass check valve 28 whereby valve 30 is immediately reset and valve 32 resets over a period determined by restrictor 41. Valve 43 meanwhile remains in a position isolating accumulator 24, and valve 44 will thereby respond to any further predetermined drop in line 23 pressure which may occur and will supply fluid from line 18 to motor 12 to close valve 10. If valve 44 does not operate in the time allowed by restrictor 41, the valve 43 resets and the system monitoring cycle can then repeat. Manual control of valve 10 is provided by valves (19, 20).
Patent GB-357026-A (GB)
Title: Improvements in or relating to the preparation of phosphoric anhydride and phosphoric acid
IPC: C01B25/20
Filed: 1930-12-03
Abstract: Phosphoric anhydride is prepared by the combustion of red phosphorus, the finely comminuted red phosphorus being burnt in apparatus customarily used for the combustion of powdery fuels with air, air enriched with oxygen or oxygen.  The phosphoric anhydride may be subsequently treated with water to form phosphoric acid.  The red phosphorus may be introduced into the combustion space through nozzles through which the gases necessary for the combustion are simultaneously introduced or the red phosphorus may be caused to impinge from wide tubes on to a rapidly rotating distributing disc disposed in the combustion chamber.  The phosphorus may be obtained in the red form from the furnace gases in the reduction of phosphates either by adding to these gases before condensation substances such as iodine bromine or nitrogen oxides which accelerate the conversion into the red modification or by subjecting the gases to superheating and excess pressure and thereafter to cooling and expansion.
Patent GB-1449309-A (GB)
Title: Production of propionic acid
IPC: C07C51/00
Filed: 1974-08-20
Abstract: 1449309 Propionic acid MONSANTO CO 20 Aug 1974 [21 Aug 1973] 36539/73 Heading C2C Propionic acid is prepared by reacting ethylene with carbon monoxide and water at 50-300‹ C. and with a partial pressure of carbon monoxide from 1 to 1500 p.s.i.a. in the presence of a catalyst system comprising a cobalt component with an iodide component as promotor, with the atomic ratio of total iodide to cobalt of 2À1 : 1 to 35 : 1. The catalyst may be present in an aqueous carboxylic acid (C 2 -C 20 ) solution containing 0À1 to 25% by weight of water. The cobalt and iodide components may be present as co-ordination compounds containing carbon monoxide or iodide ligands. The promoting component may be iodine or an iodine compound. Examples describe the use of cobalt iodide with ethyl iodide.
Patent GB-1198116-A (GB)
Title: Yarn Detection Systems
IPC: B65H63/06
Filed: 1967-08-09
Abstract: 1,198,116. Yarn cleaner. LEESONA CORP. 9 Aug., 1967 [8 Sept., 1966], No. 36562/67. Heading D1J. A yarn fault detecting system in which the yarn is temporarily removed from the fault sensing zone (e.g. whilst the fault is removed from the yarn) is combined with a delay mechanism which prevents the yarn returning to the fault sensing zone until the movement of a predetermined amount of yarn passing by the delay mechanism causes the delay mechanism to release the yarn for movement back into the sensing zone. As shown, yarn Y from bobbin 12 is drawn over guide 20, 'between tension discs 22, through the fault sensing zone of a yarn inspection device 26, beneath waxing disc 42, over suction slot 46, past yarn cutter 50, under guide 52 and onto the traverse roll-driven winding mandrel 16. When a fault is detected at 26 the cutter 50 severs the yarn and transfer arm 54 swings across the yarn's path. Nozzle 58 on the arm picks up 'the free end of yarn, which carries the fault, by suction. The fault is normally fully drawn into tube 54. When the swinging arm 54 engages cam 60 a knife-jaw unit on the arm operates to out the fault-carrying end portion of the yarn. The end portion is sucked away but the new free yarn end remains clamped to arm 54. On .return movement of swinging arm 54 the cut end is brought near the yarn winding device 62, see Specification 969,776, into engagement with slope 40 and the edge of the delay device 36. The yarn frictionally rotates the delay and the helical groove 38 traverses the yarn upwards and finally over the top of the delay device. The yarn is then drawn into the sensing zone 24. In an alternative embodiment, (Fig. 3) the delay device consists of a cylinder (70) provided with a flat surface sloping at an angle to the longitudinal axis of the cylinder. The cylinder (7) is mounted similarly to device 36 but biased by a spring to present a vertical curved surface to the slope 40. When the yarn causes the cylinder to rotate, the yarn meets the sloping surface, rises up it and slips off the top so as to return to sensing zone 24.
Patent GB-522760-A (GB)
Title: New or improved shock-absorber arrangement for vehicles
IPC: B60G15/06
Filed: 1938-12-15
Abstract: 522,760. Vehicle spring-suspensions. DAIMLERBENZ AKT.-GES. Dec. 15, 1938, No. 36586. Convention date, July 22. [Class 108 (ii)] In a vehicle suspension wherein the wheel is guided by upper and lower links 6, 7, the unguided helical spring 18 being arranged between the link 7 and an abutment 20 on the frame, the shock absorber 22 is mounted on the abutment 20 and actuated by linkage with ball or flexible joints connected to the wheel-carrier 8 or to one of the guide links. The upper guide link 6 is forked to embrace the abutment 20. The quadrangular linkage is mounted on a vertical pin 3 with a fork 16 abutting rubber cushions, and the longitudinal bearer 1 lies within the quadrangle. A cushion 21 limits upward movement of the wheel.
Patent GB-1271508-A (GB)
Title: Window cleaning devices
Inventor: SMITH RONALD FREDERICK
IPC: A47L1/12
Filed: 1968-08-01
Abstract: 1,271,508. Window cleaning devices. R. F. SMITH. June 20, 1969 [Aug. 1, 1968], No. 36640/68. Heading A4F. A device for cleaning both sides of a window simultaneously comprises a pair of tongs the ends of which are respectively provided with pad structures which are resiliently biased towards each other, and are movably mounted on the tongs for presenting alternative surfaces thereof to the surfaces to be cleaned. The bias may be provided by the resilience of the tongs or by compression of springs each mounted between a tong end and the pad structure carried thereby. Each pad structure 11 as illustrated in Fig. 2, comprises a wooden block 12, rotatably mounted on an end 10A of a tong leg 10, and provided on one side with a foam plastics pad 13 and on the other side with a felt pad 14. The pad structures are dipped in cleaning liquid and the pads 13 and 14 are used for washing and polishing the window, respectively.
Patent GB-438167-A (GB)
Title: Improvements relating to the arrangements of fuel sprayers in and combustion chambers of internal combustion engines
IPC: F02B19/04
Filed: 1934-12-21
Abstract: 438,167. Oil engines. FUSIONMOTEURS, Boulevard Gallieni, Malmaison, Rueil, France. Dec. 21, 1934, No. 36710. Addition to 418,876. [Class 7 (iii)] The parent Specification relates to an oil engine in which fuel is injected on to a projection 3 on the piston which enters a toricshaped combustion chamber 4 at top deadcentre. According to the invention the projection is of conical form with a pointed or slightly rounded tip and straight or concave sides which lead tangentially into the generatrices of the peripheral zone 1 at the head of the piston. The outlet 7 of the injector is formed in a member 9 which projects into the combustion chamber and is shaped to preserve its toroidal form.