baber/WOPTO huggingface dataset:
Patent GB-842043-A (GB)
Title: Safety electric primers for mines, protected against lgnition by extraneous electric currents
IPC: B01J2/24
Filed: 1956-11-08
Abstract: 842,043. Electric blasting fuzes. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Nov. 8, 1956 [Nov. 10, 1955], No. 34150/56. Class 9(1). An electric primer 1 for blasting charges is provided with a safety device to prevent accidental ignition by stray currents, which device when set forms a short circuit for the primer leads and can be operated by remote control to break the short-circuit. The leads 8 and a conductor 9 electrically connected to the primer casing are connected to contact blades 4 mounted on a carrier 5 surrounding a slidable core 2 held in position by a spring 10. The core has a flared head contacting the blades 4 to form a shortcircuit between the leads and the primer casing. Immediately before firing the primer an electro-magnet 3 is energized through a circuit independent of the firing circuit and moves the core 2 so that the short-circuit is destroyed. The carrier 5 together with the core 2 and electro-magnet 3 are sealed in a casing 7 by plugs 6 through which extend the leads. In a modification the blades 4 are electrically connected by the head of a pin which is urged out of contact by a spring but maintained in the short-circuiting position by fuzible insulating material, e.g. sulphur, in which a heating coil is embedded. The coil is in a circuit independent of the firing circuit and on passage of a current fuses the insulating material, whereupon the pin moves to destroy the shortcircuit. In a third form, the short-circuit pin is moved by pneumatic means which may be a tube led through a closure plug 6 to a compressed air supply or a vacuum chamber.
Patent GB-646952-A (GB)
Title: Stabilised mineral oils
IPC: C11D9/04
Filed: 1947-12-24
Abstract: 3.5.31.51 - Tetra - alkyl - 4.41 - dihydroxy di-phenyls, in which at least one of the alkyl radicles on each phenyl ring is a primary or secondary radicle and in which the radicles may be identical or different, may be prepared by oxidation of one or more alkylated phenols having alkyl groups attached to the two carbon atoms adjacent to that linking the phenolic hydroxyl group.  A large number of symmetrical and unsymmetrical compounds are listed.  According to the Specification as open to inspection under Sect. 91 such compounds are effective in very small proportions as stabilizing agents for organic compounds in general.  This subject-matter does not appear in the Specification as accepted.ALSO:Mineral oils, particularly cracked gasoline, are stabilized by the addition of a minor proportion of a 3.5.31.51-tetra-alkyl-4.41-dihydroxy-diphenyl (see Group IV (b)), in which at least one of the alkyl radicles on each phenyl ring is a primary or secondary alkyl radicle.  The radicles may be identical or different and in general may have from 1 to 12 carbon atoms.  About 0.001 to 0.1 per cent of inhibitor may be used.  Examples are given showing the effectiveness of the 3.31.5.51-tetramethyl, the 3.31-dimethyl-5.51-di-tert.-butyl, and the 3.31-di-ethyl-5.51-di-tert.-butyl compounds.
Patent GB-755403-A (GB)
Title: Mechanism for simultaneous transverse adjustment of bottom back roll bearings in a textile drafting machine
IPC: D01H5/44
Filed: 1954-11-25
Abstract: 755,403. Fibre drafting mechanism. WHITIN MACHINE WORKS. Nov. 25, 1954 [March 19, 1954], No. 34226/54. Class 120 (2). Drafting mechanism has means for simultaneously moving all the back roller bearing blocks transversely of the roller axis, the means comprising interengaging rack bars. Back rollers 20 are mounted in bearing blocks 21 slidable on the top member 22 of a bracket 10 slotted at 23 to receive rack bars 25 secured by bolts 27 to the bearing blocks 21. On the lower face of each rack bar 25 are inclined teeth 33 that mesh with teeth 32 of an operating bar 31 which is preferably given a mechanical advantage over the other rack bars of two to one and extends along the full length of the drawing frame. At an end of the frame, a manually rotatable screwed shaft is arranged to transmit longitudinal movement to the operating bar 31.
Patent GB-991119-A (GB)
Title: Radiometers with linearized final output
IPC: G01J5/0805
Filed: 1961-09-25
Abstract: 991,119. Temperature measurement. BARNES ENGINEERING CO. Sept. 25, 1961 [Sept. 26, 1960], No.34259/61. Heading G1A. A device for indicating and recording the temperature of the sea surface when carried over it by an aircraft includes an arrangement for translating the non-linear electrical output of a detector into a series of substantially linear outputs of narrower range all having the same slope. The detector may consist of a thermistor 1 with its active junction at the apex of a conical black-body reference cavity 2. The walls of the cavity are maintained at 50C. by a heater winding 3 and thermostat control 4, 6. A resistance thermometer 5 connected to meter 7 enables the temperature of the cavity walls to be checked. A two part germanium lens closes the wider end of the cavity and the lens parts are apertured centrally to form bearings for a shaft 11 carrying a rotating chopper 9 with blades in the form of two diametrically opposed quadrants. The chopper co-operates with a fixed mask 10 having open quadrants similar in shape and disposition to the chopper blades. The surfaces of the blades facing the detector are gold-plated so as to reflect infra-red energy. On rotation of shaft 11 by means of a motor and belt the detector thus sees alternately the sea and the reference cavity interior. A square reference waveform at the chopper frequency is produced by disc 14 on the motor shaft, light source 15 and detector 16. The output from detector 1 is fed through pre-amplifier 18, synchronous rectifier 19 and switched gain control 24 to meter 21 and recorder 23. Supposing the curve relating detector output and sea temperature is the solid curve shown in Fig. 3 for the range -2C to +36C. This range is divided up into four overlapping ranges of 10 degrees over each of which the curve may be regarded as substantially linear. A two-bank four position selection switch is provided the contacts on one bank of which control the device 24 to render the slope of all four sections of the curve the same. The other band of contacts selects different points on a potential divider connected across the reference signal output from detector 16 and the potential chosen is introduced in opposition to the detector output in the pre-amplifier so that each 10C. sub-range commences with zero output being fed to the meter and recorder. The variation in circuit gain may be obtained in any conventional way and the reference potentials for bringing the beginning of each range to zero may be provided by any convenient D.C. or A.C. source.
Patent GB-647797-A (GB)
Title: Process for heat treating ferrous metals and products obtained therefrom
IPC: C21D8/00
Filed: 1947-12-24
Abstract: 647,797. Working at specified temperatures. LEVITSKY, L. Dec. 24, 1947, No. 34269. Convention date, Sept. 37, 1946. Drawings to Specification. [Class 83 (iv)] In a process of hot working, the metal is cooled intensively so as to pass as quickly as possible the A1. point of the iron-carbon diagram, and the deformation is proceeded with immediately thereafter and continued until a temperature higher than the recrystallization point of the metal is reached. The metal is first heated to a relatively high temperature and deformed in the normal way to obtain a blank which is larger than the desired finished dimensions, and then reheated to a temperature above the A3 point of the iron-carbon diagram and preferably below the temperature at which the initial deformation was commenced. The deformation preferably does not exceed 40 per cent.
Patent GB-1073976-A (GB)
Title: New biologically active derivatives of pyrrolidine and the manufacture thereof
IPC: C07D405/12
Filed: 1964-08-21
Abstract: New compounds of formula <FORM:1073976/C2/1> wherein R is a substituted or non-substituted aromatic or heterocyclic radical, are prepared from the primary amine and aldehydes RCHO.  Pharmaceutical compositions of the new compounds with carriers are described as oral, rectal and parenteral forms.
Patent GB-458212-A (GB)
Title: Improvements relating to relays and like devices having a three-position operating element
IPC: B61L5/18
Filed: 1935-12-11
Abstract: 458,212. Railway signals. GENERAL RAILWAY SIGNAL CO., Rochester, New York, U.S.A.-(Assignees of Field, O. S. ; 473, Seneca Parkway, Rochester, New York, U.S.A.) Dec. 11, 1935, No. 34404. Convention date, Feb. 1. [Class 105] [See also Groups XXXVII and XXXII] In relays, instruments, railway colour-light signals, &c. of the kind having an operating element capable of movement in opposite directions from a mean position, damping means for the operating element comprise a member carried thereon and arranged to be out of engagement with a stationary member when said operating element is in the mean position and to be engaged with said stationary member only during movement of the operating element towards its means position. As shown in Fig. 1 applied to an induction relay, the shaft 4 of the operating vane 5 carries a T-shaped member 6 which is normally biassed to a mid-position by weights 7, 8 secured thereto by slotted links 13, 14. The upper end of the member 6 carries pivotally at 34 a weighted pendulum-like member 35, 36 and in returning to the mid-position from either energized position the inertia of this pendulum causes it to swing aside as shown in Fig. 3 so that its upper face engages one of the inclined faces of a fixed projection 37. This action effectively arrests the movement of the relay mechanism as it approaches its mid-position, preventing the mechanism from swinging beyond the vertical position. The pendulum does not, however, have any retarding effect on the relay during its initial movement from the mid-position in either direction, being only effectively operated during acceleration towards the mid-position. Links 27, 28 connect the member 6 to the rocking bar 25 carrying the movable contacts 24.
Patent GB-907827-A (GB)
Title: Improvements in or relating to magnetic core structures for use in electrical inductive apparatus
IPC: H01F27/245
Filed: 1959-10-12
Abstract: 907,827. Transformers. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 12, 1959 [Oct. 15, 1958], No. 34458/59. Class 38 (2). A magnetic core formed of grain oriented strip laminations has the lamination layers stacked in groups of three or more with their edges overlapping the edges of adjacent laminations so that the joints are staggered. Figs. 1 and 2 show a core formed with yoke strips 58, 78 arranged in stepped groups. The strips are located in their correct positions when positioning holes 72, 74, 76 or notches 82, 84, 86 in the leg laminations are in alignment and the yoke laminations are in place. The projecting edges of the groups of yoke laminations shown in Fig. 2 assist cooling but instead of the repeating arrangement shown the slope of the joints in alternate groups of lamination layers may be in opposite directions. In an alternative arrangement, the laminations may be square ended and have two preferred directions of orientation (Fig. 4, not shown). In other arrangements overlapping of the joints is achieved by shaping the strips as shown in Figs. 8 or 10. The partly squared ends of the strips shown in Figs. 8 and 10 enable pressure to be applied to them, mechanically or manually, during assembly. Fig. 14 shows the arrangement of a three-phase shell type core in which the joints between the limbs 304, 306, 324, 326 and the intermediate yoke members 312, 314, 332, 334 are stepped by shaping the V-ends of the latter as shown in Fig. 20. The groups of laminations may have their joints in repeating order or the second group may be reversed to form a continuous stepped arrangement as shown in Fig. 21. The yokes may be wider than the limbs and the overlap between joints in adjacent layers is normally at least six times the lamination thickness. There may be slight air gaps at the joints but the arrangements described are said to reduce both the effective air gaps at the joints and the noise level. The core may be clamped in a frame after assembly. Specification 554,000 is referred to.
Patent GB-822897-A (GB)
Title: Manufacture of liquid hardenable xylenol-aldehyde condensates and products therefrom
IPC: C08G8/24
Filed: 1955-12-01
Abstract: A resin made from 1-hydroxy-3 : 5-dimethyl benzene, 1-hydroxy-2 : 4-dimethyl benzene, a bifunctional xylenol and formaldehyde is agitated with methanol-methyl acetate, epichlorohydrin and a polyvinyl alcohol solution to form an emulsion which is mixed with hydrochloric acid, applied to glass plates and dried. Specification 757,202, [Group IV (a)], is referred to.ALSO:Liquid resins capable of being hardened are made by condensing an aldehyde, with a mixture of monohydric mononuclear phenols comprising 30% to 90% by weight of 1-hydroxy-3 : 5-dimethylbenzene, 5% to 25% by weight of a monofunctional xylenol and 5% to 65% by weight of o- or p-cresol or a bi-functional xylenol.  Specified aldehydes are formaldehyde and acetaldehyde. The resins may be modified by reaction with chlorinated organic compounds containing oxygen, e.g. 1 : 2 or 1 : 3 dichloropropanol, monochloropropanol, glycol chlorhydrin, epichlorohydrin, dichlorotertiary isobutanol, chloral hydrate, b -dichloropropionaldehyde hydrate, chlorobenzaldehyde and chlorinated phenol, cresol, naphthol or xylenol or with phosphoric acid esters containing up to six carbon atoms, e.g. trimethyl phosphate and methyl phosphate and mixtures thereof with furfural. The resins may also be worked up with hardening agents, e.g. 1 : 5-naphthalene disulphonic acid, p-toluene-sulphonic acid, p-toluene-sulphochloride, maleic acid anhydride, hydrochloric acid, phosphoric acid, sulphuric acid, benzotrichloride and lead oxide.  The resins may be mixed with fillers, e.g. silicon, silicon carbide, graphite, silica, quartz, titanium dioxide, barium sulphate, phenol-aldehyde resins, polyvinyl chloride, polytetrafluorethylene, polytrifluorochlorethylene or partially acetalized polyvinyl alcohol or may be emulsified by introduction into an aqueous solution of polyvinyl alcohol.  In examples: (1) and (2) resins are made from 1-hydroxy-3 : 5-dimethyl benzene, a bi-functional xylenol 1-hydroxy-2 : 6-dimethyl-benzene and formaldehyde; (3) the product of Example (1) is cured with chlorobenzene and ethylene chlorohydrin in the presence of quartz powder and polyvinyl chloride and optionally p-toluene sulphonic acid; (4) the product of Example (1) is agitated with methanol-methyl acetate, epichlorohydrin and a polyvinyl alcohol solution to form an emulsion which is mixed with hydrochloric acid, applied to glass plates and dried; (5) the product of Example (2) is mixed with graphite and moulded.  Specification 757,202 is referred to.
Patent GB-393660-A (GB)
Title: Improvements in or relating to means for drawing curtains and the like
IPC: A47H5/04
Filed: 1931-12-12
Abstract: 393,660. Suspending curtains. KIMBER, W. E., 12, Tachbrook Road, Feltham, Middlesex. Dec. 12, 1931, No. 34509. [Class 52 (v).] In means for drawing curtains as described in Specification 300,602, [Class 52 (v), Window, stair and like furniture &c.], wherein runners n are raised from and lowered on a track a during folding and opening by a carrier e on the operating cord f of the device the runners are of inverted J-or L-shape and the curtain l is attached to the runners n above the level of the lower edge of the track a. The track a is of H-section, the upper channel housing the carrier e, and the runners are provided with pockets o into which hooks on the curtain fit. The tops of the runners may be concave or provided with rollers and a stop s is provided at one end of the track to limit the movement of the runners but to permit the passage of the carrier e, which projects above the upper edge of the track. The fixed end of the curtain fits into a pocket on the stop s or on the track or part of the bracket h supporting the track. The carrier may be of the form described in the prior Specification or may be composed of articulated links, Fig. 4, the trailing link m having a cam surface and the leading link k having a lug k<1> engaged by the leading runner of the curtain. Alternatively the leading runner may be formed integral with the leading link.
Patent GB-936462-A (GB)
Title: Improvements in or relating to industrial furnaces with arched roofs
Inventor: ARCHIBALD WILLIAM ANDERSON
IPC: F23M5/06
Filed: 1958-10-28
Abstract: 936,462. Furnace roofs. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Oct. 28, 1959 [Oct. 28, 1958], No. 34555/58. Class 51(2). Supporting means for the arched roof of an industrial furnace comprises pivot means operatively coupled with opposite ends of the arch such that, during cycling, the ash may rise and fall, the span of the arch may vary and opposite ends of the arch may rotate, and self-adjusting compression means operable automatically and continuously during cycling with varying effect between opposite ends of the arch to maintain the line of pressure of the arch at any transverse cross-section thereof within the central third of that cross-section. As shown in Fig. 7 the arch 1 is supported between skewback channels 6 and 7, skewback channel 6 at the front of the furnace being pivoted at 8 to the vertical stays 9, and skewback channel 7 at the rear of the furnace engaging the projection 19 on a lever 10 pivoted at 11 to vertical stays 12 an adjustable tension spring 15 being pivotally connected to the lever at 16 and to a cross-tie 17. It has been found that with an arch in the form of an incomplete circular annulus having an included angle 0, a weight W and a hot face temperature T with a force remaining substantially normal to the end of the arch, the magnitude of the   force is substantially #/2 cosec ¢ ¢ # T . Where the force remains horizontal, the corresponding expression is #/2 cot ¢ # T . In a modification,   Fig. 1, the arch 1 is suspended between a pair of spring-loaded bell-cranks 42 and 43 pivoted at 45 and 46, respectively, to the furnace framework 44 and pivotally engaging the arch skewback channels at 47 and 48, respectively. The springs may be compression springs 51 and 52 or tension springs 53 and 54. Further modifications show an arch supported at one end by a pivot and pivoted at the other end to the furnace framework by a mechanical link incorporating a spring, Figs. 3 and 9 (not shown), and also supported by cranked arms incorporating adjustable weights, Figs. 4 and 5 (not shown). A final modification, Fig. 6 (not shown), has the spring connected horizontally between the furnace framework and the arch pivot, the latter forming the top of a vertical arm riding on a lower roller running horizontally on a platform connected to the said framework.
Patent GB-927682-A (GB)
Title: A new and improved mixing valve for hot and cold water
IPC: F16K11/20
Filed: 1959-10-13
Abstract: 927,682. Valves. H. G. FREDLINE & CO. PTY Ltd. Oct. 13, 1959 [Oct. 16, 1958], No. 34603/59. Class 135. A mixing valve is provided with a mixing chamber 24, Fig. 1, having an outlet 13 and hot and cold water inlets, each controlled by a valve 26 with a disc of plastic that co-operates with a seat 25, the latter being extended to form a guide 20 that is slotted to enable water to enter the chamber 24 as soon as the valve is unseated. The opposite and rounded ends of the valves 26 are contacted by a disc 29 embodying pins 30, Fig. 8, that engage arcuate cam lugs 32 in a plate 33 which is rotatable by a temperature regulating member 38, Fig. 1, having spaced green and red buttons 42, the rotation being limited by a lug 43 on the disc 29, which lug engages the rounded ends of the valves. A volume control spindle 44 threaded into the stem 35 of the plate 33 is bored to house the shank 45 of an actuating plate 46 which abuts the disc 29 and is provided with a pair of recesses also registering with the cam lugs 32 and engaged by the pin 30 so that the disc 29, the actuating plate 46, and plate 33 rotate in unison. With the member 38 disposed so that the buttons 42 are horizontal and the lug 43 vertical the valves 26 are opened together and to the same extent by the water pressure in the inlets upon rotating the spindle 44 so that it moves axially outwardly, the disc 29 adopting the position shown in Fig. 8; to vary the degree of opening of each valve, and hence to allow different quantities of hot and cold water into the chamber 24, the member 38 is rotated the desired amount in one direction to move the disc 29 obliquely in the manner of a swash-plate. Each valve 26 may embody a stem 54 of sufficient length passing through its seat 25, the longer stem offering a greater restriction to water flow in the partly closed valve position. The plate 33 is rotatably retained between a valve cover 16 and valve body 10 connected by screws 15, the whole device being mounted in a wall 50 with a contact sheet 52 interposed between the latter and the member 38, which member is spring-loaded against the sheet 52 to cater for different wall thicknesses and mounting positions.
Patent GB-1223122-A (GB)
Title: Fluid pressure governors
Inventor: CHARLES JOHN ARTHUR
IPC: F16K1/42
Filed: 1967-07-27
Abstract: 1,223,122. Valves. UNITED GAS INDUSTRIES Ltd. 24 April, 1968 [27 July, 1967], No. 34661/67. Heading F2V. A fluid pressure governor 1, comprises a chamber 5 formed between an inlet 2 and an outlet 3, a compressible seat 6 retained against the outlet end 10 of the chamber by means of an annular sleeve 11, which sleeve is apertured at 12 for communication with the inlet 2 and is non-rotatably maintained and secured within the chamber by means of a key 13 and key way 14 and a plate 16 and screws 17 respectively, and a valve member 7 which is biased to its open position by a spring 24 acting on a main diaphragm 19 connected to the valve member stem 8, and which is subjected to an oppositely directed force by the outlet pressure acting, via lines 22, 23, on the underside of the main diaphragm. A compensating diaphragm 15 is secured to the governor and to the stem and is acted upon both by the inlet and by the outlet pressure. The seat member 6 is formed from an annular metallic disc covered by rubber or plastics material.
Patent GB-301092-A (GB)
Title: Double or triple expansion, triple crank steam engine, provided with two long low-pressure uniflow cylinders
IPC: F01B17/04
Filed: 1928-11-24
Abstract: 301,092. Brouwer, G. Nov. 25, 1927, [Convention date]. Compound &c. engines ; engines with two or more parallel cylinders perpendicular to main shaft; tandem-cylinder engines.-An engine is provided with cylinders working on three cranks arranged at 120‹. There are two low-pressure, unidirectional-flow cylinders and one high-pressure, alternating-flow or, alternatively, high and intermediate counterflow single-acting cylinders arranged tandemwise act on one crank. Steam is supplied to the high-pressure cylinder 1 from an inlet 2 under the control of a piston valve 3 which controls the outlet to passages 6, 7, 8, 9 of the low pressure valve chamber 10, 11 which act as receivers. The admission to the low-pressure cylinders is controlled by valves 12, 13 which may also control an auxiliary exhaust. The valves 3, 12, 13 are of equal diameter. A modification is described wherein Van der Kerkhove piston valves are used. In a further modification, tandem single-acting, piston-valve controlled, high and intermediate pressure cylinders with a receiver between the pistons, operate on one crank. The low-pressure cylinders may have auxiliary outlet ports. The cylinders may be controlled by lift valves.