baber/WOPTO huggingface dataset:
Patent GB-1059785-A (GB)
Title: Device for dissipating the heat of a human body lying on a resting means
IPC: A61G10/00
Filed: 1964-05-29
Abstract: 1,059,785. Cooling apparatus. CONSTRUCOES CONTINENTAL, L'DA. May 29, 1964 [May 29, 1963; March 13, 1964], No. 22435/ 64. Heading A5R. An apparatus for absorbing heat radiated from a person lying on a support, comprises a vaulted plate having on its concave side a heat absorbing surface arranged to be cooled by at least conduction by a cooling system, a surface on said concave side serving to obstruct downflow of air from which heat has been absorbed by the heat absorbing surface. In Fig. 1 the upper surface of plate 3 supported on bed 1 has cooling tubes 6 connected to cooler 7 by conduits in bed posts 4. The channels 5 obstruct the downflow of cooled air. The plate 3 may be made of aluminium or copper electrolytically or chemically treated on its lower side to produce a dark surface. A cold air blower may be additionally used to cool the plate. In other embodiments the plate may comprise a lower porous layer and an upper heat insulating layer separated by a chamber which is connected to a vacuum pump and is supplied with water. The plates may have permeable cover plates arranged on its concave side to provide one or more chambers between the plate and the outermost cover plate, the chambers being evacuated or having air at room temperaure circulated therein. The cover plates may have sealing and spacing elements therebetween, which elements contain calcium chloride for drying purposes. The concave side of the vaulted plate may be provided with a heat insulating layer. The vaulted plate may be suspended from the ceiling or one or more vaulted plates may incorporated in, or used to form, a ceiling or wall.
Patent GB-533029-A (GB)
Title: Improvements in and relating to timing apparatus for controlling resistance welding and other circuits
IPC: B23K11/24
Filed: 1939-08-03
Abstract: 533,029. Mechanical make and break switches; control systems for resistance welding, BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 3, 1939, No. 22501. Convention date, Aug. 5, 1938.. [Class 38 (v)] [Also in Group XXXV] In a control system such as for resistance welding the timing of the operations is effected by a switch or other device consisting of a motor driven belt or chain 15 carrying members of varying nature which co-operate with a fixed member 218 arranged adjacent the chain so as to vary the excitation of a control circuit. The member 28 may be a contact as shown and may engage buttons 22 which are removably attached to the link pins 16, some of the buttons being conducting and some insulating. Current to the control circuit only flows when the brush engages a conducting button and the speed of the motor may be so adjusted that each button corresponds to one or more half-cycles of alternating current. The chain may carry auxiliary members 33, Fig. 6, at one or both sides to co-operate with additional contacts to control additional circuits. Fig. 9 shows the invention applied to control a welding circuit 51. The source of A.C. power 50 supplies current to the primary 54 of the welding transformer only when the two reversely-connected valves 53 are excited by control valves 60 which only become conducting when their grids 63 are at a suitable potential. Each grid 63 is normally given a negative bias by a condenser 70 which is charged from the power lines 50 by means of a transformer 66 and rectifier 69. When the brush 218 rests on a conducting segment on the chain 15 a circuit is completed to a transformer 71 which gives an alternating potential to the grid 63. A further " peak voltage is applied to the grid circuit through a peaking transformer 81 and only when this voltage coincides with the positive portion of the alternating potential is the negative bias of the grid overcome and the valve 60 made conducting. At precisely selected times. therefore the valves 60 become conducting and the welding circuit is energized. The auxiliary members 33 on the chain may connect a D.C. circuit to the grids of other valves, making them conducting and energizing other circuits, Fig. 10 (not shown). Instead of a contact 28 cooperating with a button 22 to control the potential of the grid, a metal disc may be arranged near the buttons, arranged to form a condenser with the buttons when these are conducting. Or a magnetic pick-up may be used, a coil and a core being mounted near the buttons which are either permeable or impermeable. Or a photoelectric pick-up may be formed by letting obstructions on the belt cut off a light beam.
Patent GB-1133753-A (GB)
Title: Improvements in or relating to the manufacture of compression rings
Inventor: PRASSE HERBERT FREDERICK
IPC: F16J9/26
Filed: 1966-05-20
Abstract: 1,133,753. Piston rings. RAMSEY CORP. 20 May, 1966, No. 22693/66. Heading F2T. [Also in Division B3] A piston ring 55, Fig. 5, has a peripheral groove 37 filled with wear-resistant metal. The ring may be of cast iron and the wear resistant metal may be molybdenum, tungsten, tantalum or osmium. During manufacture, Figs. 1-4 (not shown), pairs of cast-iron rings are clamped together on a rotatable arbor (20) and grooved with a grinding wheel (35) or cutting tool (41) before being sprayed with the wear-resistant metal through a spray-gun (45), any metal deposited on a land (52) on each ring being removed by a grinding wheel (50) or cutting tool (51). The cast iron rings may be precoated with phosphate (e.g. manganese or zinc) so as to provide a rust preventing and oilretaining coating and to ensure that the sprayed wear-resistant metal will only adhere to the machined grooves. If desired, the ring may be provided with a grooved upper end face or bevelled inner face as illustrated in Figs. 6-9 (not shown), so as to cause the ring to dish in operation. The piston ring 112, Fig. 13, has a stepped peripheral surface and may be manufactured as illustrated in Figs. 14-18 (not shown) by clamping several cast iron rings together on a rotatable arbor (131), machining the grooves with tools (148-150), (152-154), spraying with one or more spray-guns (164) and removing any deposit on the land 123 on each ring by a grinding wheel (167); during this manufacture, the or each spray-gun is inclined to the direction of its travel so that the stepped portions of the rings will shield the line of spray from the parting line between adjacent rings. In another method of manufacture, Fig. 19 (not shown), pre-grooved cast iron rings may be lined-up and clamped together before spraying.
Patent GB-382342-A (GB)
Title: Improvements in or relating to mechanical presses
IPC: B30B1/26
Filed: 1931-08-11
Abstract: 382,342. Mechanical presses. GENERAL MACHINERY CORPORATION, Hamilton, Ohio, U.S.A.-(Assignees of Byerlein, A. A.; 8316, Woodward Avenue, Detroit, Michigan, U.S.A.) Aug. 11, 1931, No. 22714. Convention date, Aug. 20, 1930. [Class 87 (ii).] A single acting press, e.g. for stamping sheet metal has the tool-carrying slide 19, Fig. 1, reciprocated by members which exert pressure at spaced points of the slide so that tendency of the slide to tilt during working, is minimized. The slide works in guides 20 and may have projections 21 to prevent lateral displacement. A motor 22 drives, through spur reduction gearing, a two-throw crank shaft 25 located in the central longitudinal plane of the upper frame of the press. Parallel rock shafts 23, 24, Fig. 3, are driven at their mid-points by split sleeves 59 keyed at one end to the rock shaft and provided at the other end with arms 58 which are linked to the crank pins. Arms on the rock shafts reciprocate the slide by links 32, 33 crushing washers 41 being placed below the bearings 37 to prevent overstrain. The lower press member 15 may be vertically adjusted by power driven toothed and screw gearing.
Patent GB-690678-A (GB)
Title: Improvements in registering apparatus
IPC: G01D5/245
Filed: 1951-09-28
Abstract: 690,678. Photo-electric indicating apparatus. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Sept. 28, 1951 [Oct. 4, 1950], No. 22729/51. Class 40 (iii). The deflection of a mirror 1 carried on an instrument movement is determined by allowing it to traverse a light beam from a source 2 over a series of alternately absorbent and reflecting zones 5. The reflected light impulses are received by a fixed mirror 10 which directs them on to a photo-cell (not shown), to an electronic impulse counting device. The zones are formed on a spherical surface which may be constituted as a portion of a spherical mirror engraved with lines subsequently filled with black varnish, or the mirror may be of metal formed with slots. A cylindrical surface may be used instead of a spherical one. The reflecting mirror 1 may be curved so as to assist in focusing the beam on to the spherical surface. The light source may be constituted by an illuminated aperture or a slit parallel to the rotational axis of the mirror.
Patent GB-1440263-A (GB)
Title: Slack adjusters
IPC: F16D65/60
Filed: 1973-05-12
Abstract: 1440263 Brake transmitting-mechanism slack-adjusters BENDIX WESTINGHOUSE Ltd 10 April 1974 [12 May 1973] 22729/73 Heading F2E A slack-adjuster for a vehicle brake-operating linkage includes an angularly-movable input member 5 (or 11), Fig. 2, and an angularlymovable output member 11 (or 5), one member being mounted eccentrically with respect to the other member, and one member having external gear teeth 11a mutually intermeshing with internal gear teeth 5a of the other member, and adjustment means 18, 17, 12 for moving the centre of one member in relation to the centre of the other member to reduce slack in a connected linkage. As shown, the member 11 having external gear teeth 11a is the output member, and has an output shaft 2 splined within it. As shown, input member 5 is housed in a lever arm 1 with provision for small angular rotation relative thereto when required. The output member 11 is journalled at its ends in eccentric bushes 12 each having external gear teeth 13 meshing with a pinion 17 journalled in a projection 6 of input member 5. An arm 19 is pivoted on a spigot extending from pinion 17 carries a pawl 18 engaging with pinion 17, and is connected at its outer end via a resilient linkage 20 with a back plate of the brake mechanism or a point on the vehicle chassis. A stop part 22 mounted on the lever arm 1 is engageable with a position 23 or a notch 21 on arm 19 as circumstances require. In operation, when adjustment is required, and lever arm 1 is moved leftwards by an actuator rod 3 to apply the brake, Belleville washers 9 do not yield and input member 5 is moved with lever arm 1. Rotation is transmitted via teeth 5a, 11a to output member 11 and shaft 2. Pinion 17 is also moved bodily to the left. This initial movement represents slack to be taken up, and pinion 17 moves under pawl 18 by one tooth space, the pawl position being held both by linkage 20 and stop part 22 engaging notch 21. At a certain brake load determined by the loading of washers 9, these washers yield, and lever arm 1 moves relative to input member 5. On release the eccentric bushes 12 are rotated slightly clockwise by pawl 18 through pinion 17. Consequently, the centre of output member 11 suffers a slight clockwise orbiting motion about the centre of input member 5, and this in turn results in a small counter-clockwise rotation of member 11 because of the intermeshing teeth 11a 5a.
Patent GB-1453556-A (GB)
Title: Process for making acetamide derivatives
IPC: C07F9/165
Filed: 1975-05-23
Abstract: 1453556 Acetamide derivatives E I DU PONT DE NEMOURS & CO 23 May 1975 [13 June 1974] 22800/75 Headings C2C and C2P 2 - Cyano - 2 - hydroxyiminoacetamide salts of the formula wherein M is sodium, lithium or potassium, and R 1  is a hydrogen atom or a -CO-N(CH 3 ) 2  or -CO-NHR 2  group, R 2  being a hydrogen atom or a C 1-4  alkyl or allyl radical, are obtained by contacting alkali metal nitrites (MNO 2 ) with cyanoacetamides of the formula in the presence of acids and aqueous solvents at from 10 to 80 C., the molar ratio of 2-cyanoacetamide to nitrite being from 1 : 1 to 1 : 1À1, the molar ratio of nitrite to acid being from 1 : 0À1 to 1 : 0À5 and the aqueous solvent being from 5 to 100% by weight water and from 0 to 95% by weight of water-miscible organic solvent. The reaction mixture may be acidified to precipitate free oximes having the above formula but in which M is a hydrogen atom or it may be treated with alkali to convert any free oxime to the salt form. 2 - Cyano - 2 - hydroxyiminoacetamide derivatives of the formula wherein R is an optionally substituted alkyl, cycloalkyl, aralkyl or acyl group, may be obtained by alkylating, cycloalkylating, aralkylating or acylating the mixture produced by the above reaction without isolating the salt therefrom.
Patent GB-301946-A (GB)
Title: An improved process for the recovery of soluble products from coal and the like
IPC: C10G1/00
Filed: 1927-09-01
Abstract: 301,946. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 1, 1927. Mineral and tar oils, and paraffin and mineral waxes, extracting.-In the extraction of soluble bodies from coal and the like carbonaceous material, the coal is preheated under pressure in a closed vessel, and then heated under pressure with the solvent. The pressure in either or both stages may be increased by gases or vapours more or less inert under the conditions, e.g. hydrogen, steam, carbon monoxide, and nitrogen. Pressures specified are 2-20-200 or more atmospheres. Preheating is preferably at over 100-600‹ C. for several hours, and under such conditions as do not cause caking. Solvents specified are benzene and its homologues, hydrogenated naphthalenes, alcohols, ketones, petroleum, and mineral and tar oils; cyclo-hexanol and cyclo-hexanone are especially suitable. Carbonaceous materials specified are lignite, peat, coal, oil-shale, and carbonaceous-shale. In an example, brown coal is maintained at 300‹ C. for 10 hours, thus producing a pressure of 100 atmospheres, and is then extracted for 10 hours at 300‹ C. and 100 atmospheres with benzene in a closed vessel. Gver 60 per cent of the coal is dissolved. After separation of the undissolved coal and removal of the solvent the soluble products may be treated with ether to extract resinous matter, and then with cyclohexane to extract wax-like matters. Alternatively the soluble products, alone or in solution or with the undissolved coal, may be destructively hydrogenated, or be cracked in presence of activated aluminium and hydrogen chloride.
Patent GB-462647-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/36
Filed: 1936-08-21
Abstract: 462,647. Pipe joints. STANDARD TELEPHONES & CABLES, Ltd. Aug. 21, 1936, No. 23068. Convention date, Oct. 31, 1935. [Class 99 (i)] [Also in Group XL] A cooling-jacket for an electron-discharge device with an outer cylindrical anode 1 consists of an external wall 12 and flanges 6, 7 on the anode, these flanges having outwardly turned edges 8, 9 and the joint between these edges and the wall 12 being made by rings 20, 21 enclosing plastic packing material 25, 26. The edges of the wall 12 and the flanges 8, 9 are bevelled as shown, and the rings 20, 21 are pressed down on them by screws 27, 28 passing through flanges 13, 14 in the wall 12.
Patent GB-836846-A (GB)
Title: Method and installation for the desilicizing of feeding water for steamboilers
IPC: C02F5/02
Filed: 1957-07-22
Abstract: Water is desilicized, to render it suitable for use as boiler feed in connection with high pressure steam turbines, by adding milk of lime to the raw water so as to produce a solution which has a pH of 10-14, subjecting the solution to a mechanical friction treatment so that crystallization nuclei are formed therein, separating the solid phase from the mechanically treated solution, so as to produce a liquor still containing silica-calcium compounds in the colloidally dissolved or super-saturated state, recycling a part of the liquor to the limed raw water corbonating the other part of the liquor by contact with a gas comprising carbon dioxide and separating the solid phase present in the carbonated liquid.  The solid phase which is formed during the carbonation is a precipitate of CaCO3.  This precipitate may be removed by settling and decanting, but preferably by filtering through a filter precoated by the CaCO3 precipitate formed during the carbonation.  The liquid may also be filtered immediately before carbonation, preferably through a precoated filter of the type described above.  The carbonation, which may be affected with an oxygen-free gas and may be repeated, may be conducted under pressure, provided the liquid is degasified after carbonation.  The desilicized water may be passed through a cationic and/or an aniomic exchanger.  The mechanical friction treatment may consist in the circulation of the limed water by means of a centrifugal pump around a closed system of pipelines.
Patent GB-1030320-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D55/28
Filed: 1963-06-11
Abstract: 1,030,320. Disc brakes. L. TAYLOR. May 27, 1964 [June 11, 1963], No. 23138/63. Heading F2E. In a disc brake in which a U-shaped brake caliper housing 13 is pivotally mounted adjacent the periphery of the disc for motions about a fixed axis disposed in the plane of the disc and transverse to the axis of the latter, a movable brake pad assembly 17 is moved into frictional engagement with the disc by means of helical springs 23 (Fig. 3, not shown), the reaction on the caliper housing forcing the opposite friction pad 32 which is secured to the caliper housing against the opposite face of the rotating disc to apply braking pressure to the disc. The brake is released by fluid pressure supplied to the space 26 which forces a piston 22 outwardly of the cylinder 25 against the action of the springs 23 to draw the brake pad assembly 17 away from the disc. Dowel pins 29 (Fig. 3, not shown) are provided in holes 30 in the pivotal brake caliper housing 13 to maintain the alignment of the brake pad assembly 17 and prevent rotation of the latter. The brake caliper housing 13 is capable of slight pivotal motion about the spindle 14 to equalize the applied pressure at the two faces of the disc and to take account of any maladjustment consequent upon lining wear. An adjustable stop screw 28 in a cover 27 limits the amount by which the brake pad assembly is moved away from the disc.
Patent GB-1104875-A (GB)
Title: Method of ultrasonic material testing for analysis of the flaw shape
IPC: G01N29/11
Filed: 1966-05-24
Abstract: 1,104,875. Ultrasonic flaw detectors. DR. J. U. H. KRAUTKRAMER GESELLSCHAFT FUR ELEKTROPHYSIK. 24 May, 1966 [18 Oct., 1965], No. 23169/66. Heading H4D. In a method of ultrasonic pulse-echo flaw testing a measure of the departure of the configuration of a flaw from a smooth, plane shape is derived as the ratio of the amplitudes of the electrical pulse outputs of two amplifiers of identical gain but different bandwidths each having as input the electrical pulse corresponding to an ultrasonic echo pulse. The invention utilizes the fact that an amplifier of large bandwidth has a shorter rise and decay time than one of narrower band-width so that echo pulses due to smooth plane flaws, which closely resemble the transmitted pulses, i.e. narrow pulses, produce output pulses of lower amplitude from the amplifier of narrower band-width than from the larger band-width amplifier whereas echoes due to fissured &c. flaws have flattened wave fronts and are transmitted through the amplifier of narrower band-width with less amplitude attenuation than are the narrow pulses. Thus, when the amplifier of larger band-width is arranged to produce pulses of equal amplitude for both broad and narrow input pulses the ratio between such amplitude and that of the output pulses from the narrow band amplifier gives a measure of the departure of the flaw from a smooth plane configuration. In carrying out the invention the received echoes may be supplied to the two amplifiers either sequentially (Fig. 1, not shown) or simultaneously (Fig. 4, not shown) rectifier means being incorporated in the amplifier or in associated display means which, in the case of the Fig. 1, arrangement, may comprise an oscilloscope and/or a gated peak voltage indicator-the display means being connected to the amplifiers in correspondence with the sequential inputs whilst, in the Fig. 4 arrangement, the display device may be an electromechanical, or equivalent electronic quotient meter yielding the required ratio directly on a measuring instrument. The input voltages to the display devices may be recorded.
Patent GB-317228-A (GB)
Title: Improvements in arrangements for measuring electrical quantities
IPC: G01R27/02
Filed: 1928-08-11
Abstract: 317,228. Siemens Bros. & Co., Ltd., and Rosen. A. Aug. 11, 1928. Measuring the unbalance of telephone and like lines.-In a known arrangement for measuring the outoi balance capacities of telephone cables, the two wires A, B, of one pair are connected to a source S of alternating current, the two wires C, D of the other pair are connected to a telephone or other detecting-instrument T, and two condensers KA, KB in series are bridged across the pair A, B, their junction being connected to one wire C of the other pair. According to the invention this last connection is made through a condenser K of known capacity, the effect being to increase the difference reading between the condensers KA, KB necessary to obtain no sound in the telephone, this difference being proportional to the out-of-balance capacity between the two pairs. To obtain the true difference required for balance, the reading of the differential condenser is divided by a constant obtained by dividing the sum of the capacities of the condensers K, KA, KB by the capacity of the condenser K. In order to obtain greater consistency in the measurements when the cable circuits are interchanged, pairs of equal impedances ao, bo, co, do are connected either, as shown, between each line and a central point O, or in mesh connection between the lines. The impedances, which may be resistances, condensers, choking-coils, or combinations thereof, are of such value that the admittance between the wire of the separate circuits is great compared with the out-of-balance admittance. The impedances associated with each pair of lines, together with their switching arrangements, are enclosed in separate earthed metal cases M for shielding the apparatus connected to the source of alternating current from that connected to the detector.
Patent GB-208752-A (GB)
Title: Improvements in overhead rope-ways and the like
IPC: B61B12/02
Filed: 1922-08-30
Abstract: 208,752. White, J. W., and Valberg, C. O. Aug. 30, 1922. Terminals and stations for overhead and suspended ways.-Relates to overhead ropeways of the kind in which carriers 3 are hauled along a track rope 4 by a haulage cable 5 which is automatically disengaged from the carrier by a ramp rail 7 at the in-bound side of the terminal station and re-engaged by a ramp rail 17 at the outbound side. An open cage 2 is suspended from the carrier and mine tubs or rail wagons are loaded into and unloaded from the cage automatically at the terminal station. Figs. 1 and 2 show the in-bound and out-bound side of the station respectively. When the incoming loaded carrier reaches C the weight of the cage is taken by the rail 6, at D the haulage rope is released from the carrier, at E the tub is supported on the rails 8, at F the cage is held by a stop 10 adjacent to the track and the tub runs out. The tub then engages a lever 11 so as to release the stop 10, and the cage and carrier run, preferably by gravity, round the curve of the track 9 to the out-bound side of the station. On reaching the position G. Fig. 2, the empty cage is held back by a stop 19 until another tub from the track 14 enters the cage and engages a lever 16 releasing the stop. The carrier then moves by gravity along the rail 9 until picked up by the haulage rope 5.