baber/WOPTO huggingface dataset:
Patent GB-663479-A (GB)
Title: Improvements relating to heating and cooling metal moulds
IPC: B22D27/04
Filed: 1949-05-23
Abstract: 663,479. Foundry moulds. HOWARD, Ltd., H. A., and HOWARD, H. A. May 23, 1950 [May 23, 1949], No. 13721/49. Class 83 (i). [Also in Group XIII] A metal mould a is heated and cooled by different fluids, e.g. hot water or steam and cooled trichlorethylene, flowing alternately through the same passages near the mould cavity, the residual fluid of the previous flow being displaced from the passages by the flowing fluid, by which it is vaporized or frozen and separated either by allowing the vapour to escape or by screening off the frozen material. Water is maintained at 100‹ C. or more by means of pressure, in a tank b by a heater c, pump d and a thermostatic control. With valves g closed and valves f open, a pump e circulates the water through the heat exchange passages of the mould a, residual trichlorethylene being collected as vapour in the tank b where it opens a relief valve o to return to a tank j by way of a condenser p. Excess pressure is released by a safety valve q. If steam is used instead of hot water, the used steam in condensing heats water fed to the steam generator, trichlorethylene separated from the condensate being vented through a relief valve. For cooling, valves f are closed and valves g opened for a pump m to circulate, through the mould, trichlorethylene from the tank j where it is kept at - 40 ‹ C. by a pump k and a refrigerator l. Residual water collects as ice sludge in a screen n to be removed by an archimedean screw.
Patent GB-491549-A (GB)
Title: Improvements relating to aircraft controls
IPC: B64C13/00
Filed: 1937-05-18
Abstract: 491,549. Controlling aircraft. PHILLIPS & POWIS AIRCRAFT, Ltd., and EMERY, G. A. ST.-C. May 18, 1937, No. 13849. [Class 4] Means for operating an angularly-movable aircraft control-surface 4 include a link 7 pivoted at one end directly to a horn 5 and supported between its ends by guide means allowing combined sliding and angular swinging motion, the link carries a cam follower 15 co-operating with a cam on a member rotatably-mounted on a part relative to which the surface 4 is angularly movable. As shown, a trimming tab 4 is pivoted near the trailing edge of the elevator 1 and is operated by the link 7 selectively positioned on the horn 5 and guided on the journal of a pulley 1. The pulley 11 is rotated by a cable passing through flexible sheaths and moves the link through an anti-friction roller engaging a cam slot 14 in the pulley. The slot may be of evolute form and be designed such that the control is irreversible. The link 7 may be forked and rollers on the link may engage grooves on both sides of the pulley. The control system may be applied to the control of flaps, main control-surfaces, trimmable tailplanes and servo-surfaces. In the case of a balancing tab, the control may be arranged such that the tab is moved concurrently with displacement of the control-surface.
Patent GB-551564-A (GB)
Title: Improvements in the control of electric motors through grid controlled rectifiers
IPC: B23K9/12
Filed: 1941-10-29
Abstract: 551,564. Automatic control system for arcs. BRITISH THOMSON-HOUSTON CO.; Ltd. Oct. 29, 1941, No. 13910. Convention date, Oct. 31, 1940. [Class 38 (iv)] [Also in Group XXXVII] In the control of a reversible D.C. motor 1 through reversely connected grid controlled rectifying valves 4, 5 preferably containing an ionizable medium, by shifting the phase of alternating grid voltages to render one or other valve conducting, complete cut-off of the non-conducting valve is assured notwithstanding the effect of the back e.m.f. of the motor by means of a negative bias which is varied with the phase shift. For this purpose each grid exciting circuit contains, in addition to static phase shifting means 11, 12 comprising a D.C. saturable inductance 23, a resistance 29 in. series with a grid controlled auxiliary valve 30 in which the phase relation of anode and grid volts is varied as phase shifting circuit is operated. The invention is described as applied to the automatic control of the speed and direction of a motor adjusting an arc welding electrode 37 to maintain constant arc voltage as in Specification 516,837.
Patent GB-611822-A (GB)
Title: Improvements in or relating to cutting tools
IPC: H02G1/12
Filed: 1946-05-09
Abstract: 611,822. Tools for stripping cables. STAINS, Ltd., G., and STAINS, G. C. May 9, 1946, No. 14056. [Class 36] A cable-stripping tool comprises a pair of interengaging members a, b which together form an aperture k through which the cable to be stripped is inserted, the internal perimeter of the aperture k being formed of cutting edges h, i. The member a is provided with legs c which fit into recesses d in member b. Compression springs e normally separate members a, b. Movement of member a either inwardly or outwardly is limited by screws f working in grooves g. The device is operated by one hand and the cutting aperture may be circular, oval or angular.
Patent GB-203752-A (GB)
Title: Improvements in the manufacture of metal washers
IPC: B21D53/20
Filed: 1922-05-18
Abstract: 203,752. Smith, A. H. May 18, 1922. Nuts and washers.- Washers or nut blanks are punched out from strip metal 5, pierced, and bevelled by dies in a single operation. The dies, which are operated by a machine such as described in Specification 186,395, comprise an annular die 20 secured in the reciprocating head 2, a stationary die 3 with a bevelled shoulder 7 and a punch 8 mounted on a cross-bar 12 secured in slots in an annular extension 17 of the die holder 1. The washer &c. is ejected by a stepped cylindrical ejector 9 which is operated by a fork 19 passing between the bar 12 and extension 17. The die parts and ejector can be interchanged for others of different size or shape.
Patent GB-1043373-A (GB)
Title: Improvements in or relating to structural elements
IPC: E04C2/36
Filed: 1962-05-12
Abstract: 1,043,373. Girders, corrugated sheets, mine arches. J. HILL. Aug. 9, 1963 [May 12, 1962], No. 14107/62. Headings E1E and E1K. A structure such as a girder or panel comprises a metal sheet web 10 having transverse parallel folds or ribs 11 of greater depth than width and spaced apart a distance greater than the width of a fold and having parallel metal strips 12 welded to its longitudinal edges. The ends are completed by plates 13. The structure may have two parallel sheets with the folds directed in opposite directions Fig. 4 (not shown). The sheet may have alternate folds directed in opposite directions Fig. 6 (not shown). An arch, Fig. 7, for mine roofs is made by first welding the inside strip 12 to the edge of the sheet 10 and after bending, welding the outside strip in position. The strips 12 may be of U, L or H section.
Patent GB-1424195-A (GB)
Title: Spark ignition systems
IPC: F02C7/266
Filed: 1972-03-25
Abstract: 1424195 Ignition systems LUCAS INDUSTRIES Ltd 21 March 1973 [25 March 1972] 14117/72 Heading FIB  A condenser discharge ignition system employing a control gap 13 has an adjustable power supply to vary the charging rate of the condenser 12 and hence the spark discharge rate of the device 10 e.g. a surface discharge plug. As shown the condenser is charged via a transformer 22 and a rectifier formed by a pair of diodes 23 from a D.C. source in a circuit including a primary winding 24 and feedback winding 27 of the transformer. The current in the primary winding 24 is controlled by a transistor 26 which is switched by the feedback winding 27. The transistor 26 has two supply circuits to its base controlled by switches 25, 35. One circuit provides a higher peak voltage than the other. Eack circuit includes a Zener diode 31, a diode 33 and a pair of resistors 32, 34. The feedback winding 27 and diode 28 act first to allow saturation of the transistor 26, then to switch off the transistor and hold it off until the transformer secondary current ceases. The system provides a high spark discharge rate for starting and a low spark discharge rate for normal running.
Patent GB-560717-A (GB)
Title: Improvements in or relating to methods of making hermetic glass-to-metal seals
IPC: C03C27/04
Filed: 1942-10-08
Abstract: 560,717. Glass manufacture. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 8, 1942, No. 14125. Convention date, Oct. 8, 1941. [Class 56] [Also in Group XXXVI] Oxidizable metals such as iron or steel are sealed into glass by coating them with silver, the thickness of the coating and the time of heating during sealing being such as to permit only such a small oxidation of the metals as to make a better seal than that provided by the uncoated metals. The silver film is preferably between .00004 and .00025 inches thick and an overcoating of black silver sulphide may be provided. The iron is degreased with sodium carbonate, etched and rinsed, and then plated in a striking solution containing silver and potassium cyanide and potassium carbonate. It is then transferred to a plating bath containing in addition sodium thiosulphate and ammonia. The glass consists of two parts silica and one part lead oxide with small proportions of aluminium, potassium and sodium oxides. The process is preferably carried out in a machine of the kind described in U.S.A. Specification 2,195,483 and consisting of a mould 20 and plunger 24. The mould supports the iron ring 2 and the silver-plated iron wires 5 which pass through a glass button and through the plunger. The plunger carries an exhaust tube 6 welded to the button and flared by a plunger 32. Pins 22 raise the ring above the mould so that the gas flames can play upon the ring without unduly heating the mould. To avoid cracking the glass upon cooling, the ring is cooled by streams of cold air at a quicker rate than the glass until they are both at the same temperature. The metal is then mildly heated to reduce its rate of cooling until the glass solidifies, when both metal and glass are allowed to complete their cooling at the same rate.
Patent GB-551061-A (GB)
Title: Improvements in, or relating to, hoists, cranes, lifts, news-reel stands and other apparatus requiring quick braking
IPC: B66D5/12
Filed: 1941-11-03
Abstract: 551,061. Self-sustaining gear. ASEA ELECTRIC, Ltd., and BAYNES, S. Nov. 3, 1941, No. 14136. [Class 78 (v)] [Also in Group XXXIV] In braking mechanism of the type comprising friction surfaces located between a driving shaft and a driven shaft arranged in axial alignment, the brake being automatically applied immediately the power is removed from the driving shaft, means are provided for axially adjusting the driven shaft to compensate for wear of the braking surfaces. The Figure shows the application of the invention to an electric hoist in which a driven shaft 5 is geared to a drum 4 winding a cable 2 passing round a load pulley 1. Co-axial with the shaft 5 is a driving shaft 6 carrying a frustro-conical rotor 7 of an electric motor 12. The shaft 6 engages the shaft 5 at 14, 15 slidably but non- rotatably, and a spring 13 bears on the outer end of the shaft 6 to tend to force it toward the shaft 5. The shaft 5 carries a friction disc 19 and the shaft 6 a disc 21 held by pins 18 non- rotatably in respect to the said shafts. Between these discs is located a disc 20 held stationary with the frame by pins 22, and under the influence of the spring 13 the discs 19, 20, 21 are pressed together to brake the shafts 5, 6 when the motor is not energized. As soon as current is turned on, however, the rotor 7 is drawn toward the spring 13 by the conical fieldmagnet surrounding it and so releases the brake. The adjustment comprising the invention consists of a threaded sleeve 36 in which is fixedly located by spacers 30, 31 a ball or roller bearing 27 held on to the end of the shaft 5 by a shoulder 28 and 'nut 29. The sleeve 36 can be threaded into and out of the frame bearing block 32 and held in position by a nut 33. The inner bearings 23, 24 are slidable laterally in their frame supports 25, 26, so that the discs 19, 21 can be brought nearer together when wear takes place. A lever 10 is lifted by the pulley 1 at the top of the wind to shut off the motor. The device is stated to be particularly applicable to hoists, cranes, lifts, news-reel stands and other apparatus requiring quick braking. Specification 551,062 is referred to.
Patent GB-700296-A (GB)
Title: Improvements in or relating to lubricant distributing systems
Inventor: CLARK REGINALD GEORGE EDMUND
IPC: F16N25/00
Filed: 1950-06-06
Abstract: 700,296. Lubricating. WAKEFIELD & CO., Ltd., C. C. June 5, 1951 [June 6, 1950], No. 14144/50. Class 12(3) A lubricant distributer comprises a body part 10, Fig. 1, housing a conically-shaped spring pressed valve 12, ducts 18 extending radially from the valve seat to cylindrical chambers 19 in which tell-tale plungers 20 are mounted on tension springs 21, and hollow delivery plugs 25 which incorporate metering jets 26. The plungers 20 have small holes 22, and the ends of the chambers 19 are closed by plugs 23 having visible feed windows 24. In operation, a reciprocating piston pump forces a pulsating supply of oil through the passage 13 to periodically lift the valve 12 and pass oil through the passages 18 to the chambers 19, the pressure of the oil lifting the plungers 20 to displace the oil above them through the passages 33. When the pressure impulse dies away the plungers are drawn down by their springs 21 displacing oil beneath through holes 22. The jets may be associated with the passages 18 instead of the plugs 25, or the plugs may be elbow-shaped as in Fig. 3, and provided with an internally threaded bore 34 engaged by a screw having a reduced portion 36 leaving an adjustable annular passage 37 communicating with a passage 39 in the limb 40. The compression of spring 30 may be adjusted by turning the screw cap 31, and the delivery passages may be provided with calibrated orifices.
Patent GB-353558-A (GB)
Title: An improved winding for dynamo electric machines
IPC: H02K3/34
Filed: 1930-05-08
Abstract: 353,558. Insulation for dynamo-electric machines. MœLLER, R. E., 2, G³ntzelstrasse, Berlin. May 8, 1930, No. 14160. Convention date, May 8, 1929. [Class 35.] Windings are made of aluminium wire covered with a layer of oxide toughened by the process described in Specification 287,503, [Class 36, Electricity, Conducting &c.]. Reference has been directed by tke Comptroller to Specification 287,503.
Patent GB-475505-A (GB)
Title: Manufacture of 2-hydroxynaphthalene-dicarboxylic acids
IPC: C07C51/15
Filed: 1936-05-19
Abstract: 2 - Hydroxynaphthalene - dicarboxylic acids are made by heating under pressure with carbon dioxide an alkali salt of a 2-hydroxynaphthalenemonocarboxylic acid containing the carboxyl group in the non-hydroxylated nucleus, the second carboxyl group entering the 3-position.  The products are dyestuff intermediates. In examples, the dipotassium salts of 2-hydroxy-naphthalene-5-, 6-, and 7-carboxylic acids, and the disodium salt of 2-hydroxynaphthalene-5-carboxylic acid are each heated to a temperature of about 250 DEG  C. with carbon dioxide under a pressure of 120 atmospheres.  Specification 257,815, [Class 2 (iii)], is referred to.
Patent GB-1065784-A (GB)
Title: Improvements in or relating to method and apparatus for pulsed well logging
Inventor: YOUMANS ARTHUR HOMER
IPC: G01V5/10
Filed: 1964-04-07
Abstract: 1,065,784. Detecting neutrons. DRESSER INDUSTRIES Inc. April 7, 1964, No. 14367/64. Heading G6P. [Also in Divisions G1 and H1] Neutron detectors.-A detector for slow or epithermal neutrons comprises a proportional counter 105, Fig. 12, surrounded by paraffin or other moderator 112 and a thermal neutron shield 111. An alternative detector comprises a scintillator in the form of lithium iodide slabs pasted about a core of paraffin moderator, the whole being encased in a thermal neutron shield. Neutron sources.-A source of high energy neutron pulses comprises an oscillator 38, Fig. 2 (not shown), producing a 2 kv. square wave which is applied between a housing 23 and a grid 39. This periodically ionises deuterium gas in the space between insulators 40,41. The deuterium ions are accelerated towards a target 43 containing tritium by a 200 kv. supply 42 where they react to form 14À4 Mev. neutron pulses.
Patent GB-730928-A (GB)
Title: Improvements relating to primary electric batteries
IPC: H01M50/502
Filed: 1953-05-21
Abstract: 730,928. Batteries; couplings. RAY-O-VAC CO. May 21, 1953 [June 19, 1952], No. 14372/53. Classes 38 ( 1) and 53. The elements of a dry cell comprising a negative electrode k of zinc, magnesium, aluminium or iron, an electrolyte carrier h of absorbent material such as paper, a cake of depolarizing material g and a conductive sheet f which may consist of plastic material containing carbon are enclosed in an envelope consisting of two plastic sheets a, a<1> coated with adhesive b. Contact with an adjacent cell is made by a metal collector plate c coated with adhesive e and in contact with the sheet f which is stuck round its edges to the inner surface of the envelope a to form a closed pocket for the plate c. The plate c is provided with points d which puncture the envelope a when pressure is applied to enable adjacent cells to be joined in series as shown in Fig. 2, the points d piercing the envelope of the adjacent cell and making contact with its negative electrode. Several ways of providing the plate c with points d are described. The envelope a may be made by placing the elements of the cell in order on a plastic sheet over the whole and securing the edges of the sheets to one another. Alternatively the elements may be enclosed in the fold of a single sheet the edges of which are then secured together. The plate c may be placed on the outer surface of the cell with one of its points passing through its envelope and making contact with the negative electrode. A second cell is connected in series by being pressed against the plate c to cause a second point on the plate to pierce the envelope. Another method of making a battery of cells in series is shown in Figs. 8 and 9 in which the electrodes k, f, depolarizer g, electrolyte h and contact plates c having points d are arranged between two plastic strips a, a<1 >having loops p to enable them to be folded after the edges have been stuck together to form individual cells as shown in Fig. 9. The points d pierce the strips a, a<1> to join the cells in series when they are pressed one against another. A battery of cells in parallel may be made by employing pointed collector plates between adjacent cells arranged in a stack, the collector plates having tongues projecting alternately at both sides of the stack, the tongues of plates of like polarity being connected together. Specification 720,069 is referred to.
Patent GB-548161-A (GB)
Title: Method of drying pipe lines such as water pipes and mains preparatory to coating the same
IPC: F26B21/00
Filed: 1941-11-08
Abstract: 548,161. Coating pipes. WEBB, L. W. Nov. 8, 1941, No. 14430. [Class 95] [Also in Group XIII] The interior surface of a pipe line such as a water main is dried preparatory to painting by spraying by passing through the line air from which moisture has been removed by precipitation. Compressed air expands into a cooled heat exchanger in which moisture is deposited, and .the dried air is then passed by a blower through a heater and into the pipe line.
Patent GB-1492519-A (GB)
Title: Web-fed rotary printing press
IPC: B41F5/04
Filed: 1976-04-08
Abstract: 1492519 Printing presses KOENIG & BAUER AG 8 April 1976 [13 May 1975] 14444/76 Heading B6C A web-fed rotary printing press comprises two press sections 11 and 12, each comprising a printing unit and a folder, the drives of which are interrelated so that, in operation, the circumferential speeds of the forme cylinders are different in a predetermined ratio; and a device 5 for collating the products of the two press sections to form a final product, e.g. a newspaper. The drive may be, as shown, by a shaft having an adjustable gearbox 13 between the sections. Alternatively, one section could produce a signal indicative of the speed thereof which is used to control the speed of the second section. The first and second sections may comprise a number of printing units, and the units are preferably arranged to perfect the webs passing therethrough. The folder may be arranged to deliver the product in various alternative ways to the collators, which again may be used in alternative ways to achieve different final products.
Patent GB-197207-A (GB)
Title: Improvements in apparatus for locking the hand ropes of lifts
IPC: B66B13/24
Filed: 1922-05-24
Abstract: 197,207. Etchells, Congdon, & Muir, Ltd., and Muir, F. May 24, 1922. Lift cages, locking and unlocking.- In means for automatically locking the handing ropes of lifts when the well doors are open of the kind in which a pivoted gripping cam is actuated bv an electric solenoid connected to the several contact breakers in the well of the lift, the cam D<1> is mounted between a pair of rocking arms D and is moved towards the handing rope B by a spring e. The core of the solenoid G is connected to the bracket D<3> to which the arms D are pivoted at e'. The cam is held in central position by the engagement of an arm E' mounted on the bracket D<3> with a projection d<1> on the cam.