baber/WOPTO huggingface dataset:
Patent GB-736711-A (GB)
Title: Improvements in or relating to thermostatically controlled valves
Inventor: STEADMAN CLIFFORD STUART
IPC: G05D23/12
Filed: 1953-02-18
Abstract: 736,711. Valves. SMITH & SONS (ENGLAND), Ltd., S. May 14, 1954 [Feb. 18, 1953], No; 4578/53. Class 135. [Also in Group XIII] A thermostaticallycontrolled valve for incorporation in a liquid flow system such as the cooling system of an internal-combustion engine has associated therewith a bypass passage which is adapted to permit the flow of air when the valve is closed and which is closed by the action of a float member when the valve is surrounded by liquid. This arrangement enables air to escape whilst the system is being filled. with liquid and obviates any leak across the valve when the system is full. As shown, the by-pass passage is formed in the valve closure member and comprises ports 9 in a frusto-conical head portion 8 and a central hole 11 in a cylindrical portion 10 attached to the head portion. The hole 11 is closed by a conical part 14 on a cork float 12 weighted by a part 13. The float 12 and the part 13 are of square section and are guided in the cylindrical portion 10. The valve head 8 co-operates with a seat 3 on a housing 1 adapted to be inserted in a part of the cooling system. The housing has flow ports 5 and carries at its lower end a liquid-filled bellows 6 connected to the valve head 8 by a stem 7.
Patent GB-422307-A (GB)
Title: Improvements in or relating to paper pulp beaters
IPC: D21D1/02
Filed: 1934-02-12
Abstract: 422,307. Paper-pulp beaters. SCHMIDT, E., Dolni Polubny, Czecho-Slovakia. Feb. 12, 1934, No. 4664. Convention date, Feb. 10, 1933. [Class 96] In a beating-engine for half-stuff, waste paper &c., pulp is drawn from the trough &c. and forced by a pump through spaces between the bed-plate bars 4 and against the beater roll. The bars 2 of the roll 1 have teeth extending between similar teeth on the bed-plate bars 4 the effective grinding surface of the bars being thus increased. The wood spacers 10 are partly removed to provide the passage-way for the pulp, the flow of which prevents clogging and forces air from the cells 6, 7 between the bars. The beater may be run at high speed, and may render Jordaning unnecessary.
Patent GB-1166811-A (GB)
Title: Improvements in or relating to Brake Control Valve Mounting Structures
Inventor: NEWSTEAD CHARLES
IPC: B60T8/18
Filed: 1967-02-08
Abstract: 1,166,811. Fluid-pressure brakes. GIRLING Ltd. 8 Feb., 1967, No. 46/66. Heading F2F. In a brake control valve mounting structure the body 2 of a brake control valve is mounted on a sprung part of the road vehicle and a lever 3 and an arm 4 are jointly pivoted at 5 to a lug 1 on the body 2 of the brake control valve, a spring 13 being provided to act between the arm 4 and the lever 3 and means for adjusting the loading of the spring. A link 17 is provided at the other end of the arm 4 and is connected to the differential housing or other unsprung part of the vehicle. Any increase in the vehicle loading will cause the arm 4 to pivot clockwise to compress the spring 13 thereby to load the lever 3 which in turn acts on a piston-rod 6 of the control valve. A nut 16 may be adjusted to take up lost-motion and to apply any desired preloading to the valve. Alternative holes 7 enable different lever arm lengths to be selected in order to adjust the loading applied to the valve for a given loading of the spring 13. In an alternative embodiment (Fig. 2, not shown) the link 17 is replaced by a screw threaded adjuster member to constitute a link on variable effective lengths. In a further embodiment (Fig. 3, not shown) the spring member is enclosed in a telescopic guide tube.
Patent GB-525405-A (GB)
Title: Tuning device for radio receivers
IPC: H03J5/12
Filed: 1939-02-13
Abstract: 525,405. Adjusting wireless apparatus. HANSEN, N. Feb. 13, 1939, No. 4738. Convention date, July 25, 1938. [Class 37] Relates to switch-tuned sets of the kind in which the station-selecting levers make direct contact with the vanes of the rotary condenser, and are operated from the front of the set. As shown, for instance, in Figs. 1 and 4, the condenser vanes 21 are rotated by station-selecting levers 24 which are moved from left to right against a spring 32, when tuning, and are held in the latter position by a catch 31 ; the tuning movement can be calibrated by a screw 28, and a screw-driver for this purpose is provided at 37. Or, as shown in Fig. 2, the condensers are moved by press-buttons 25 of normal type, and calibration is effected by a screw 28 which passes through the centre of the push-button. According to the invention, a control lever 34, similar to the station-selecting levers but having no limit catch or spring return, is provided for ordinary manual tuning of the set. The Specification, as open to inspection under Sect. 91, also includes a description of various known forms of switch tuning, including one in which a number of heart-shaped discs are fitted to the shaft of the tuning condenser and are actuated by corresponding control-buttons. This subject-matter does not appear in the Specification as accepted.
Patent GB-753366-A (GB)
Title: Improvements in or relating to drilling machines
IPC: B23B41/00
Filed: 1954-02-18
Abstract: 753,366. Drilling-machines; chucks. ASPLUND, A. J. A., [trading as MASKINFIRMA, R. L., CARLSTEDT.]. Feb. 18, 1954 [Feb. 18, 1953; Aug. 1, 1953], No. 4754/54. Class 83 (3). A drilling or boring machine for producing through bores and operating with a highpressure liquid cooling-medium, comprises a holding device for retaining the work on the machine spindle and an open-ended member to establish a seal against the work around that part from which the drill emerges on completion of drilling, the open-ended member being capable of limited axial displacement against the pressure of a spring. A hollowspindle 22 rotatable in roller bearings in the machine housing 10 carries at one end a work-supporting and driving member 12. The latter is bell-mouthed and has ribs 20 for engaging and gripping work 14 (broken lines). A driving-pulley 23 is keyed to the rear end of the spindle. Two sleeve members 62, 64 are within the bore of the spindle 22, a spring 66 pressing the sleeve 64 to the right in the drawing. This sleeve rotates with the spindle and carries a rod 94 drawn to the left by a spring 98. A disc 104 on the right-hand end of the rod 94, holds a member 90 against a part-spherical seating 82 on the sleeve 64 through the spring 98. The member 90 has a sealing ring 112 which bears on the end of the work and since this member forms a closure for the end of the hole being drilled upon completion of drilling, the high-pressure coolant is contained and caused to return through the tool. A modification in the arrangement of the member 90 comprises a sealing sleeve within the member 90 which is pressed against the work by the pressure of the coolant. The spring 66 may then be of reduced strength. In each case this spring also serves to eject the work from the holder 12.
Patent GB-1018012-A (GB)
Title: Method of determining the negative reactivity of subcritical nuclear multiplying systems
IPC: G21C17/10
Filed: 1964-02-04
Abstract: 1,018,012. Detecting neutrons. UNITED STATES ATOMIC ENERGY COMMISSION. Feb. 4, 1964 [March 5, 1963], No. 4778/64. Heading G6P. To measure the negative reactivity of a nuclear reactor the noise spectrum density as a function of frequency, in the neutron flux, is measured at both critical and sub-critical conditions. The curves of spectral density plotted against frequency are stated to have the same shape for both reactor conditions and the coordinates of selected points on the curves are applied in formulµ to give the reactivity. Three different methods of computing the reactivity are given. The neutron fluctuations are measured by a neutron sensitive chamber coupled to a network of fixed frequency filters through a wide band amplifier. Each filter feeds into squaring and averaging devices. A knowledge of the degree of negative reactivity of a reactor permits the insertion of fuel without the danger of the inadvertent production of criticality and a power excursion.
Patent GB-490538-A (GB)
Title: Improvements in or relating to boxes and like containers
IPC: B65D5/18
Filed: 1937-02-17
Abstract: 490,538. Boxes for shirts &c. ROBINSON, Ltd., E. S. & A., ROBINSON, H. G., and BOND, R. H. Feb. 17, 1937, No. 4799. [Class 18] The end closure d, c2, g<x>, x of a box for shirts &c. made from the blank shown in the Figure, is rendered readily accessible for inspection of contents by providing a folding line a<2> on the top which permits a lid portion a<1> to be folded back. Panels a4, a<5> embrace panel a<6> to form a flange, folding lines a3 permitting this flange to fold flat. Hooks e<2> interengage to secure an end. In another form, these hooks are omitted, the outer tongues g<x> are replaced by square corners and tongues on the edges of panels g engage slits in panels c. In a further form, panel a<5> has tongues at its edge taking into slots at the base of panel a<4>, panel g has one tongue g<x> at its end and is continued up to panel c forming a square panel e, and panels c2 are replaced by triangular corner pieces which fold across the middle when panel d is raised.
Patent GB-776349-A (GB)
Title: Improvements relating to rotary gas burners
IPC: F23D14/00
Filed: 1954-02-18
Abstract: 776,349. Gas burners. GENERAL ELECTRIC CO. Feb. 18, 1954 [Feb. 19, 1953], No. 4830/54. Class 75(1)  A rotary gas burner comprises a burner ring 1 rotatably supported in a surrounding stationary annular race 2 the ring having a circumferential gap 6 and the race having also a circumferential gap of equal length bridged by a gate 30, the ring further having openings 7 at its inner periphery communicating with a groove  8 in the ring terminating at each end short of the gap and covered by a surface of the race in all angular positions of the ring, a pair of gas ports 21 in the race communicating with the groove and spaced circumferentially a distance greater than the gap in the ring, self closing valves 25 in the ports arranged to be opened by engagement with the ring and means for continuously rotating the ring. The ring is rotated by two spur gears 13, 16 which mesh with an annular gear 14 fastened to the ring and having a gap 15 co-extensive with the gap 6 in the ring. The spur gears are spaced apart a distance greater than the gap 15 so that one at least of the gears always engages the annular gear 14. The gear 13 is mounted on a shaft 12 driven by an electric motor 11 and the other gear 16 is connected to the first gear 13 by a chain and sprocket drive. The ring is held within the stationary race 2 oy rollers 10 on the ring engaging a flange 9 on the race. Each gas port 21 in the race consists of a circumferential slot extending through the race and communicating on the outer surface of the race with a bore 22 in a bracket 4 supporting the race. Each valve 25 is slidable and tiltable in the bore 22 and is urged by a spring against the outer surface of the race to cover the slot therein. The stem 26 of each valve extends loosely through the slot to project inwardly of the race in the closed position of the valve. Engagement of the end of the stem with the ring therefore opens the valve. The gate 30 in the race is pivoted on a pin 31 and is held in closed position by a screw 32; its arcuate length is less than that between the ends of the groove 8 in the burner ring.
Patent GB-1047911-A (GB)
Title: Glutamine salts
IPC: A61K31/195
Filed: 1965-02-04
Abstract: The invention comprises dihydroxyaluminium glutaminate and monohydroxyaluminium diglutaminate of formulae <FORM:1047911/C2/1> <FORM:1047911/C2/2> and their preparation by reaction of glutamine and aluminium isopropoxide.  The compounds of the invention may be used to treat gastric ulcers, as pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral administration.
Patent GB-422308-A (GB)
Title: Improvements in or relating to rubber vulcanisation
IPC: C08K5/00
Filed: 1934-02-14
Abstract: Acid phthalates of primary monoamines are prepared for use as agents for preventing scorching in the vulcanization of rubber. Suitable acid phthalates are those of aniline, cyclohexylamine, and b -naphthylamine; the preparation of these acid phthalates from the amine and phthalic acid or phthalic anhydride is described; p-aminophenol acid phthalate is also suitable.ALSO:In vulcanizing indiarubber with the aid of an organic accelerator, the tendency to scorch is reduced by adding to the mix an acid phthalate of a primary monoamine.  Suitable acid phthalates are those of aniline, cyclo hexylamine, and b -naphthylamine; the preparation of these acid phthalates from the amine and phthalic acid or phthalic anhydride is described; p-aminophenol acid phthalate is also suitable.  In the examples, particulars are given of the physical properties of the products obtained by vulcanizing mixtures containing: (1) pale cr<\>zepe rubber, zinc oxide, sulphur, stearic acid, the reaction product of mercaptobenzothiazole with a mixture of eyclohexylamine and dicyclohexylamine, and the acid phthalate of aniline, cyclohexylamine, or p-naphthylamine; (2) pale cr<\>zepe rubber, sulphur, zinc oxide, stearic acid, the crotonaldehyde derivative of the reaction product of hexamethylenetetramine with mercaptobenzothiazole, and aniline acid phthalate; (3) pale cr<\>zepe rubber, zinc oxide, sulphur, stearic acid, the reaction product of piperidine with mercaptobenzothiazole, and aniline acid phthalate. In each example, the absence of scorching is shown by comparing the plasticity of the product with that of a product obtained from a mixture not containing the acid phthalate but otherwise identical. The plasticity is determined by means of a press having a moveable upper weighted plate connected to a gauge for measuring the distance between the upper and lower plates of the press.  A cylinder of 1 cm. height cut from the uncured rubber stock is preheated and then kept in the press for three minutes at 70 DEG  C., the gauge reading at the end of that time being taken as the plasticity figure of the stock; the less is the tendency to scorch, the lower is the plasticity figure.  Other organic accelerators in association with which the acid phthalates may be used are the reaction products of organic bases with aminomercaptobenzothiazoles, chloromercaptobenzothiazoles, p  mercaptotolylthiazoles, mercaptoxylylthiazoles, and mercaptonaphthothiazoles, and the reaction product of cyclohexylamine with mercaptobenzothiazole.
Patent GB-765193-A (GB)
Title: Improvements in or relating to vacuum cleaners
Inventor: MEYERHOEFER CARL E
IPC: A47L5/36
Filed: 1955-02-18
Abstract: 765,193. Suction cleaners. LEWYT CORPORATION. Feb. 18, 1955, No. 4990/55. Class 8(1) A trolley for a vacuum cleaner comprises a member 18 attachable to the body of the cleaner by means of a tongue 19 which engages behind a plate 20 on the body 5 and spring clips 21 which engage in air outlet ports 11, and provided with a caster wheel 32 and fittings 23, 24, 25, 26 to carry the cleaning accessories; the electric cable may be wound round the top of the member 18 which is provided with flanges 41. Specification 760,275 is referred to.
Patent GB-490751-A (GB)
Title: Improvements in the production of staple fibre
IPC: D01D10/04
Filed: 1937-02-19
Abstract: A coherent band of torn artificial staple fibres of substantially unimpaired extensibility is obtained by subjecting a band of torn fibres to the action of one or more of the usual after-treatment liquids after the tearing operation and with retention of the coherent structure of the band.  The after-treatment liquid may be applied by sprinkling the band of fibres or by immersing it in the liquid, or the liquid may be forced or sucked through the band while the latter is in cans or bags or while cross wound.
Patent GB-376375-A (GB)
Title: Improvements in and relating to blowpipes for welding and cutting metals
IPC: F23D14/46
Filed: 1931-02-17
Abstract: 376,375. Blowpipe burners. CAMPBELL, L., 2828, Washington Avenue, Cleveland, Ohio, U.S.A. Feb. 17, 1931, No. 5034. [Class 75 (i).] In a welding or cutting blowpipe burner of the type comprising two detachable elements and an injector nozzle removably mounted in one element and having seating engagement with the other element, the elements are so formed as to give protection to the seating surfaces when the elements are taken apart. The Figure shows a tubular body 10 having a central passage for the mixed gases and formed with a flange 21 which is a sliding fit in a tubular extension 11a in a block 11 provided with a central oxygen passage 12 and a number of acetylene passages 13. The nozzle 14 is formed with an enlarged cylindrical portion 16 seated against a shoulder 15 in the member 10 so as to leave an annular passage between a cylindrical portion 17 and a truncated conical portion 18 of the nozzle and the member 10. The part 10 is secured to the block 11 by a union nut 23, a resilient mouldable fireproof packing ring 24 and a metal collar 25 being interposed between the nut and the flange 21. The pressure of the nut 23 forces the rear end of the nozzle into engagement with a recess 22 in the block 11. When the nut 23 is unscrewed it engages a split ring 26 seated in the body 10, detachment of the body 10 being thereby facilitated and the nut 23 being maintained in such a position as to guard the nozzle and its seating surfaces. The conical seating 22 is similarly protected by the extension 11a. The oxygen issues from a small central hole in the nozzle 14 and entrains the acetylene which enters the annular passage' from the holes 13 through a number of holes 20 provided in the body 10 opposite a neck in the nozzle between the cylindrical portions 16, 17.
Patent GB-608196-A (GB)
Title: Apparatus for separating resin and other impurities from producer gas
IPC: C10K1/04
Filed: 1946-02-18
Abstract: 608,196. Air filters. PRAT, E. Feb. 18, 1946, Nos. 5036 and 5037. Convention dates, Aug. 24, 1942, and Sept. [17, 1942. [Class 8 (ii)] In a dust filter of the type comprising a brush with bristles of archimedian screw form, the bristles form two screws o, o<1>, separated by half the pitch of each screw. The bristle concentration ,may be increased, hence the screw blades thickened along the direction of gas flow to assist filtration, and the bristles are of highly conductive wire to assist cooling of hot producer gas being cleaned. The gyratory motion imparted to the dust particles assists deposition on the sides of a supporting cylinder j.
Patent GB-590770-A (GB)
Title: Improvements in or relating to brush-holder arrangements for dynamo-electric machines
IPC: H01R39/38
Filed: 1941-04-21
Abstract: 590,770. Brush-holders for dynamoelectric machines. GENERAL ELECTRIC CO., Ltd., and DAVIES, E.C. April 21, 1941, No. 5128. [Class 35] In a direct-current generator of the heavy current type, a plurality of metal brush-boxes 4 are mounted side by side, and are insulated from. a common support 1, as by insulation 9 and insulated bolt 13. Electrical connection to a common point is made by leads 8. The flow of current through the contact surface between brush and holder, which may lead to unequal brush loading, is thereby avoided. If the support is an arm or spindle, this may be covered or wrapped with insulation, over which the holders for the boxes are clamped; a similar result may be obtained by making the support itself of insulating material. A spring- loaded arm 6 exerts pressure on the brush. In a modification in which each of the boxes contains two brushes, an insulating partition is placed between the brushes and the box is lined with insulation.
Patent GB-1534754-A (GB)
Title: Dvor station monitoring arrangements
IPC: G01S1/40
Filed: 1976-02-10
Abstract: 1534754 Radio navigation INTERNATIONAL STANDARD ELECTRIC CORP 10 Feb 1976 [12 Feb 1975] 05133/76 Heading H4D In the monitoring of side-band signals and carrier frequency signal radiated by a DVOR ground station (the side-band signals being radiated in sequence by a plurality of radiators 5, Fig. 1, under the control of a commutator 4 and the carrier frequency signal being radiated by a further radiator 6) by means of a monitor antenna 9 and a monitoring circuit 10 which provides a signal when limit values are exceeded and which is designed on the assumption that the antenna 9 is at such a distance from the plurality of radiators that the paths between each of the radiators and the antenna are substantially parallel, the monitor antenna is sited so close to the plurality of radiators that said paths depart significantly from being parallel, the variation in the lengths of said paths as the side-bands are radiated in sequence by the radiators also departing significantly from that which would obtain if the monitor antenna were situated at said distance. The carrier signal is eliminated from the signal received by the monitor antenna by subtraction (11), whereby only sideband signals remain; and the remaining side-band signals are passed through a variable phase shifter 13 controlled (14) in dependence on the sequence of radiation such that the effect of significant departure of path length variation on the phase of the remaining side-band signals is counterbalanced. The carrier signal is then recombined 12 with the so phase-shifted side-band signals; and the resultant combined signal passed to the monitoring circuit 10. In a second embodiment, Fig. 2, the central, further radiator 6, also acts as the monitoring antenna (9), with the monitored side-bands from coupler 17 being phase modulated at 30 Hz in 18 to produce the counterbalancing. The invention is stated to be applicable to close-up monitoring of the radiation from a linear array microwave Doppler landing system.
Patent GB-551395-A (GB)
Title: Improvements in grinding wheel dressers
IPC: B24B53/04
Filed: 1942-04-12
Abstract: 551,395. Grinding wheel dressers. WARREN, S. F. (Dumore Co.). April 17, 1942, No. 5153. [Class 60] A grinding wheel dresser for mounting on a lathe comprises a longitudinal member clamped at one end to the tailstock and a dressing device adjustably mounted thereon, the device comprising an adjustable plate with slots in V formation in which manually operated diamond &c. holders slide. The longitudinal member 37 is supported by a bracket 33 clamped to the tailstock and by a vertically adjustable member 38 resting on the bed of the lathe. The diamonds are mounted in plates 48, 49 having lugs sliding in slots 51 formed in a horizontal plate 47 having a vertical extension 43 pivoted at 44 to a plate 42 integral with the mounting block 40 carried by the member 37. The plate 47 can be adjusted to the same helical angle as the grinding wheel about the pivot 44, and the dressing holders 48, 49 are connected by links 53 to a hand-operated lever 54.
Patent GB-286264-A (GB)
Title: Process for the manufacture of electrical conductors in light aluminium alloys
IPC: C22F1/05
Filed: 1928-02-18
Abstract: 286,264. Compagnie de Produits Chimiques et Electro-Metallurgiques Alais, Froges, et Camargue. March 2, 1927, [Convention date]. Wire for use as an uninsulated electric conductor is made by mechanically and heat treating light aluminium alloys, e.g. aluminium-copper, aluminium-lithium, aluminium-magnesium silicide, aluminium-beryllium or ternary or quaternary alloys of these metals with additions of nickel, cadmium or manganese. A billet of the alloy is first rolled or drawn to a diameter greater than that finally required and the coiled wire thus formed is tempered and then reheated for several hours at a temperature ranging generally from 125‹ C. to 175‹ C. but possibly rising to about 250‹ C. The wire is then mechanically hardened as by cold-drawing to final size and finally annealed at a temperature of from 125‹ C. to 250‹. Two examples of the process, with numerical data, are given in the Specification. The process is stated to increase the strength and improve the electrical qualities of the wire.