baber/WOPTO huggingface dataset:
Patent GB-420963-A (GB)
Title: Plate valves
IPC: F16K15/10
Filed: 1934-07-02
Abstract: 420,963. Non-return valves. MOSS, E. W., 75, Victoria Street, London.-(Inger. soll-Rand Co. ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) July 2, 1934, No. 19471. [Class 135] [See also Group XXXII] A non-return valve particularly adapted for use on air compressors comprises a flat valve plate J guided to work between a valve seat with two concentric series of ports K and a stop plate C provided with similar ports L in staggered relationship with the ports K. The valve is guided by the engagement of its inner periphery with a washer F clamped between the seat and guard plate by a bolt D. The washer is so dimensioned that the overhang of the valve plate is reduced to a minimum, notches P being provided to permit the passage of fluid. The valve is loaded by a flat spring plate R reciprocable between the stop and valve plates and provided with arms U concentric with the spring plate pressing at their free ends against the valve plate. The arms are initially curved out of the plane of the spring plate throughout their length so that during the opening of the valve the area of contact between the spring arms and the stop plate will gradually increase and the springy portions of the arms will correspondingly decrease towards both extremities of each spring arm. In a modification (Fig. 8) the arms have a short curved portion to one side of the plane of the plate and a longer reversely curved portion on the other side of the plane of the plate.
Patent GB-854082-A (GB)
Title: Improved system for sealing hatch covers
IPC: B63B19/26
Filed: 1959-06-08
Abstract: 854,082. Hatch covers. CONSULMAR S.A. June 8, 1959 [Jan. 23, 1959], No. 19477/59. Class 113. In a hatch cover, of the type comprising a plurality of cover sections adapted to be opened forward or aft and to be supported on the coaming by wheels, sealing is provided by a resilient strip which surrounds the hatchway and is located in the angle formed by the cover section sides and the coaming. The strip 10 is contained in channel section members which are retained in sealing engagement along the longitudinal edges by the hook and screw arrangement 11 and 12 and along the transverse edges by tie screw and pivot arrangement 24, 25 and 26. The transverse intersections of the cover sections are sealed by interlocking resilient strips 13 and 14 which are compressed into sealing engagement, when the covers sections are closed, by the follower 15 running on the cam surface 16. The wheels 8 are adapted to run along a track 9 and support the cover sections so that the sides of the sections project below the top of the track 9 to prevent the ingress of water. The covers sections are prevented from opening accidentally by pawls, located at the sides of the sections and rubber shock absorbers. The sealing strips 10, 13 and 14 may be replaced by inflatable tubes.
Patent GB-403152-A (GB)
Title: Valve giving constant rate of flow
IPC: G05D7/01
Filed: 1933-07-07
Abstract: 403,152. Fluid - actuated valves. EASDALE, D., Halfway, Fir Tree Road, Epsom, Surrey. July 7, 1933, No. 19501/32. [Class 135.] A valve device for maintaining a constant rate of flow, particularly adapted for maintaining a constant height of jet in a drinking water fountain of the upward jet type, comprises a piston operated valve housed in a vertical hollow cylinder G with the top connected to the delivery pipe and the bottom closed and having at mid-depth an enlargement of the bore P connected to the supply passage L. The piston N, the upper and lower portions of which are a good sliding fit in the cylinder, has the middle portion slotted or reduced so as to provide a space gradually increasing in crosssectional area from the lower portion up to a circumferential groove R connected by internal passages H, M with the top and bottom faces of the piston. A push knob is acted on by a light spring C resting on a gland E is mounted on a spindle having an eccentric head J adapted to engage a shoulder formed in a recess K in the piston. To open the valve the knob is depressed to cause the head J to engage the bottom of the recess and move the piston to bring the lower end of the recessed part opposite the inlet. Thereafter the valve falls by gravity until the piston reaches a position wherein the difference of the pressures acting on the two sides equals the weight of the piston. On releasing the knob the piston is moved to its upper position with the packing S engaging the seat S<1>.
Patent GB-307476-A (GB)
Title: Improvements in indicators for games
IPC: A63F1/18
Filed: 1928-07-05
Abstract: 307,476. Agrell, G. A. M. March 9, 1928, [Convention date]. Indicators, trump and like.-An indicator for games comprises a number of rotatable indicators adapted to be set by a common operating member journaled co-axially of the indicators. As shown, a declaration indicator for card games comprises a ring 4 mounted on and rotatable with respect to two discs 2, 3 that are carried by a squared portion of a spindle 1 having an operating knob 11. The discs are pressed together by resilient washers 7, 8 and thereby .caused to grip a flange 5 on the inner edge of the ring 4. The indicator is set by a counterclockwise rotation of the knob, followed by a clockwise rotation. During the former rotation the ring rotates with the discs, and during the latter the ring is held by the engagement of ratchet teeth 12 thereon with a spring detent 14. The ring and discs are viewable through apertures 9, 10 in the casing and are adapted to indicate respectively the number of tricks and the trumps of the declaration. In a modification, the ring is provided with a single ratchet tooth to register with each numeral.
Patent GB-1386938-A (GB)
Title: Jet engines
Inventor: BUISSON MARC FRANCOIS BERNARD
IPC: F23R3/18
Filed: 1973-04-25
Abstract: 1386938 Gas turbine jet engines; reheat equipment SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 25 April 1973 [25 April 1972] 19559/73 Heading F1J The invention relates to a gas turbine jet engine of the by-pass type in which the hot gas flow from the turbine is surrounded by an annular flow of relatively cool air, re-heat combustion means being provided downstream of the turbine. In the embodiment, the hot gas flow discharge from the turbine is indicated at 17 and the annular air flow is indicated at 20, the outer boundary of the hot gas flow being indicated at 25 and the inner boundary of the air flow at 26, a mixing zone between the two flows being indicated at 27. The rear bearing 13 of the turbine rotor 1a is supported within the turbine stator casing 3a by means of radial struts 15 extending across the hot gas flow duct 16 and these vanes result in variations in the velocity of the hot gas flow, the velocity being least downstream of the vanes and greatest downstream of the spaces between the vanes. In accordance with the invention, an annular wall 19 which is corrugated progressively increasingly towards its downstream edge 24 is provided, being secured at its upstream edge to the turbine stator casing 3a. The parts of the corrugated wall of greatest radius are aligned with the radial struts 15 as shown in Fig. 3.
Patent GB-693029-A (GB)
Title: Improvements in and relating to the method of regulating temperature of steam
Inventor: KREISINGER HENRY
IPC: F22G5/02
Filed: 1951-08-20
Abstract: 693,029. Water-tube steam boilers; superheaters. COMBUSTION ENGINEERING-SUPERHEATER, Inc. Aug. 20, 1951, No. 19561/51. Addition to 642,671. Classes 123 (ii) and 123 (iii) [Also in Group XII] In a steam boiler comprising a vertical furnace 16 which is lined with steam-generating tubes 20 and terminates at its lower end in a gas outlet 62 locating a convection superheater 13, regulation of the superheat temperature is effected by adjustment of the burners 22 which are mounted at the upper end of the furnace, preferably at the corners thereof to provide tangential firing, and are of a vertically tiltable type, e.g. as described in the parent Specification.
Patent GB-233576-A (GB)
Title: Improvements in and relating to valves
IPC: F16K17/164
Filed: 1924-08-18
Abstract: 233,576. Heath, F. Aug. 18, 1924. Safety cut-off valves.-A valve device particularly applicable for controlling the supply of oil to burners is provided with manually-actuated means for opening the valve and at the opposite end of the casing with an adjustable stop. The valve face co-operates with a seat 6 and is formed on the end of a differential piston 10 arranged in a stepped cylinder 8 so that both ends are exposed to the pressure in the fluid conduit 2. The valve is opened by a spindle 13 pivoted to a hand lever 15 itself pivoted to a swinging link 17. The weight of the spindle 13 and lever 15 normally holds the valve open, but for starting an eccentric 18 pivoted to a yoke 16 on the spindle 13 is rotated to hold the hand lever in its depressed position. The space 12 between the pistons is vented through a passage 19 controlled by a valve 20 carried by the stop spindle 22. This spindle has an operating handle 23 and is screwed through a cover 21 fixed to the casing and locked in position by a pin 28 passed through holes in a plate 24 on the spindle and a plate 27 adjustably mounted on a pillar 25.
Patent GB-703106-A (GB)
Title: Tyre buffing band
IPC: B23D71/02
Filed: 1951-08-20
Abstract: 703,106. Buffing tyres. HAWKINSON, P.E. Aug. 20, 1951 [Oct. 16, 1950], No. 19611/51. Class 31 (1) A sheet metal tyre buffing band comprises alternate rectangular areas A, B of integral cutting teeth of two different types, the teeth 2 of each area A being pressed outwardly from the band on fold lines 4 parallel to the side edges 5 of the band, and the teeth 3 of each area B being pressed outwardly from the band on fold lines 6 inclined to the side edges 5, the teeth 2 projecting outwardly from the band to a greater distance than the teeth 3.
Patent GB-1132465-A (GB)
Title: Nuclear reactors
Inventor: BOOTH DAVID LAWRY
IPC: G21C15/18
Filed: 1965-05-10
Abstract: 1,132,465. Nuclear power plant. ENGLISH ELECTRIC CO. Ltd. 9 May, 1966 [10 May, 1965], No. 19645/65. Heading G6C. In a nuclear power plant having a number of parallel coolant circuits through the fuel tubes 11 in the reactor moderator 10, a circuit which is breached is supplied with coolant from the remaining undamaged circuits so as to maintain fuel cooling for a limited period after the fault. The tubes 11 are arranged in groups each of which supplies heavy water steam to a turbine 15 through a steam drum 13. Water from the condenser 16 and the drum 13 is returned, by the pumps 19, 23, to the lower ends of the fuel tubes. The feedwater vessel 28 is also connected to the outlet of pump 19 and the vessels 28 of each group are interconnected at 42. The fall in pressure in a coolant circuit caused by a breach in that circuit induces a flow of coolant into the associated vessel 28 from the vessels of the undamaged coolant circuits. The cooling of the fuel associated with the breached circuit is thereby maintained for a limited period.
Patent GB-305437-A (GB)
Title: Improvements in or relating to pulverised fuel burners
IPC: F23D1/00
Filed: 1928-07-06
Abstract: 305,437. Yarrow, H. E. July 6, 1928. Pulverulent-fuel burners. -A pulverulent fuel burner comprises an annular chamber B having an inlet A for the fuel and its conveying air and fan annular discharge aperture formed by a fixed sleeve D and a sliding sleeve C adjustable as described in Specification 303,701. The secondary air is supplied through a casing N to an annular discharge aperture formed between sleeves F, G and is regulable by means of a rotatable sleeve or louvre Y surrounding ports E<1>. Additional air may enter through sleeve D past an adjustable coned obturator H, the amount being regulable by means of an adjustable plate K. Inclined vanes may be arranged in the discharge apertures to communicate to the fuel mixture and air gyratory motions which are preferably in opposite directions. The inlet A may be arranged tangentially, radially, or at any angle to the chamber B.
Patent GB-508987-A (GB)
Title: Improvements in building blocks
IPC: E04B2/02
Filed: 1938-07-02
Abstract: 508,987. Building-blocks. ENSOR, C. A. J. July 2, 1938, No. 19673. [Class 87 (i)] A building-block is provided on its upper face with a rib 5 having inclined sides 6 and on its lower face with a complementary groove 7 ; vertical grout-feeding grooves 15 and, if desired, holes 19, and grout-spreading grooves 20 are provided. Complementary tongues 14 and grooves 13 may be provided on the end faces of the block and vertical cavities 16, 17 may be formed in the block. For joining two walls consisting respectively of the two forms of block shown, a block, Fig. 7 (not shown), of the shape of two blocks arranged at right angles is provided.
Patent GB-642672-A (GB)
Title: An improved natural ventilator
IPC: F24F7/02
Filed: 1947-07-23
Abstract: 642,672. Ventilators. ALLSOP, P. G July 23, 1947, No. 19684. Convention date, Dec. 17, 1945. [Class 137] A ventilator for use on buildings and vehicles comprises a shaft 4 in which is arranged an ogee-shaped baffle 6 which in combination with the curved vanes 8 and 9 induces a flow of air upwards through the shaft. The ventilator is provided with a weather-hood 14 and may be of any convenient shape e.g. rectangular or circular.
Patent GB-205222-A (GB)
Title: A spill-maker which can also be used as a paper cutter, envelope opener, rule & measure of length
IPC: B43M7/00
Filed: 1922-07-18
Abstract: 205,222. Shelly, C. E. July 18, 1922. Paper-knives. - The sharp edges 5, 6 of a spill-maker, preferably of metal, serve as a paper cutter and envelope opener respectively.
Patent GB-1435963-A (GB)
Title: Scanning device
IPC: G01N21/89
Filed: 1973-04-26
Abstract: 1435963 Scanning device CIBA-GEIGY AG 11 April 1974 [26 April 1973] 19818/73 Heading G1A A device for scanning sheet material 3 by reflection and/or transmission comprises a light source, a photo-electric light detector 5 and, located to transmit light received from the material 3 to the detector 5, a guide box 4 lined throughout, except for a slot 8 and a transparent end-facing detector 5, with reflecting material, including a curved reflecting surface 10, with its concavity a maximum remote from and a minimum nearest detector 5. Light from mirror drum 2 passes through material 3 and opal strip 9 and is guided to photo-multiplier 5. Slot 8 may be at an angle to the major axis of box 4. The curve of 10 is given by y=H+c(1-e<SP>ax</SP>)-bx where x is as shown, H is the value of y at x=0 and a, b and c are constants. This is to make the light collection efficiency more uniform along the slot. For further uniformity the slot is covered by a compensating variable density wedge or the photomultiplier output may be electronically compensated. Said reflecting material is back-coated mirror glass. Reflecting surface 10 may be one curved mirror or several plane mirrors approximating to the curve.
Patent GB-792003-A (GB)
Title: Improvements in or relating to reflecting rear light attachments for road vehicles
Inventor: CLAYTON STANLEY JAMES
IPC: B60Q1/26
Filed: 1955-07-08
Abstract: 792,003. Rear lights and reflectors for road vehicles. TUDOR ACCESSORIES, Ltd. June 12, 1956 [July 8, 1955], No. 19885/55. Class 75(4) The translucent cover of the rear light of a road vehicle has an ex ternal recess in which a mount carrying a reflector can be locked after adjustment of the mount so that the plane of the reflector is vertical. Preferably, the cover 3 has a part spherical recess 8 in which a hemispherical mount 11 for the reflector is clamped by a screw 12 and dished member 14. The rear lamp assembly comprises a base plate 1 having flanges 2 seated in recesses in a rubber apron 16 interposed between the plate and the body of the vehicle. The cover is secured to the plate 1 by screws 4 passing through a rubber apron 6 to effect a moisture tight seal, and encloses a bulb with two filaments one for a rear light and the other for a warning light when the brakes are applied. The casing is further sealed against moisture by a circular rubber washer 18 fitted between the recess 8 and the mount 11. The Provisional Specification refers to the replacement of the dished member 14 by a resilient spider frame.
Patent GB-1112534-A (GB)
Title: Improved magnetic memory constructions
IPC: G11C11/06
Filed: 1965-05-11
Abstract: 1,112,534. Magnetic storage apparatus. RADIO CORPORATION OF AMERICA. 11 May, 1965 [29 June, 1964], No. 19905/65. Heading H3B. A magnetic store comprises two sheets of magnetic material with their surfaces in physical contact, at least one of the sheets being provided with first and second orthogonal sets of cross-hatched grooves which sets of grooves respectively contain first and second sets of conductors, the sets of conductors extending respectively generally in a direction having a diagonal relation to the cross-hatched grooves. If the sheets of rectangular hysteresis material are rectangular in shape two sets of parallel grooves 18 are out respectively parallel to the diagonals of the bottom sheet 14 so as to define posts 20 of magnetic material, Fig. 3, the tops of the posts being in close physical contact with the surface of a top magnetic sheet. Conductors are provided in the grooves so as to extend generally in the X and Y directions, each straight portion of a zig-zag X conductor extending in closely parallel relation with a straight portion of a Y zig-zag conductor. Each memory element thus includes a portion of the bottom sheet 14, portions of the sides of two adjacent posts 20 and a portion of the top sheet (not shown). Information is stored by sending coincident pulses down selected X and Y conductors and read out is achieved by connecting the Y conductors to a sense amplifier and applying a read pulse to the appropriate X conductor. The stored information is rewritten into the same storage location during the following write portion of the cycle. A non-destructive read-out memory is constructed by employing an upper magnetic sheet 30, Fig. 5, provided with grooves 32 having the same dimensions and pattern as those on the bottom magnetic plate 14, Fig. 3, but displaced in the X direction. Fig. 5 shows the cross-sections of the posts in the upper magnetic sheet and shows the outlines in dashed and solid lines of the posts in the lower magnetic sheet. Interrogation conductors I 1  to I 5  are arranged as shown in the upper sheet so that when the sheets 14, 30 are placed face to face each memory element is provided with an interrogate conductor orthogonal to the X and Y conductors. Fig. 6 (not shown). Information is written into the store by applying simultaneously a write pulse to a selected one of the X conductors and a digit pulse to the Y conductors. Non-destructive read-out is performed by directing an interrogate pulse to the corresponding interrogate conductor I which causes a temporary rotation of the flux inducing sense signals on the Y conductors. In the arrangement of Fig. 7 (not shown) a third intermediate magnetic sheet of soft magnetic material is interposed between the sheets 14, 30. The conductors may be formed by printed-circuit techniques.
Patent GB-392381-A (GB)
Title: Combination lock-switch for use in electrical circuits, and with particular application to motor vehicles
IPC: B60R25/04
Filed: 1932-07-14
Abstract: 392,381. Secret contact-combination switches. DANN, H. C., The Laurels, Ruskington, Lincolnshire, and PALLOT, A. C., Aultone, Barrow Hedges Way, Carshalton Beeches, Surrey. July 14, 1932, No. 19921. [Class 38 (v).] A secret contact - combination switch comprises a series of insulating discs A loosely mounted on a spindle B. Each disc has a contact H passing through it so that when the discs are all in their correct positions, as shown by symbols on the edges of the discs, circuit is made between the fixed contacts J. A further disc C is slidably mounted on a squared part of the spindle and can be moved by a disc D screw-threaded on the spindle to clamp the pile of discs together to make good contact. The symbols may be marked on separate rings which are keyed on to the discs so that the combination may be changed at will.
Patent GB-980997-A (GB)
Title: Preparation and purification of thioamides of isonicotinic acid
Filed: 1963-05-20
Abstract: Thioamides of iso-nicotinic acid and its alkyl-substituted derivatives are produced by treating the corresponding iso-nicotinic acid nitrile in aqueous solution with hydrogen sulphide and/or ammonium, alkali metal, or alkaline earth metal hydrosulphides. Emulsifiers of anionic or cationic types may be added to the aqueous medium in a concentration of 1 to 5% by weight to ensure emulsification of the nitrile.  A catalyst may also be added, and is selected from hydroxides, sulphides or hydrosulphides.  The thioamides are purified by dissolving them in aqueous acid solutions, decolorizing, filtering, and precipitating them by making the solution alkaline.
Patent GB-999242-A (GB)
Title: Esterification of isophthalic acid with alkylene oxides
IPC: B01J31/02
Filed: 1964-05-13
Abstract: Esters of isophthalic acid are made by reacting isophthalic acid with an alkylene oxide in the presence of a quaternary ammonium salt as a catalyst.  The reaction may be effected at 70-120 DEG  C under autogenous pressure, and the molar ratio of alkylene oxide to isophthalic acid may be from 1:1 to 4:1.  An example is given in which isophthalic acid is esterified with 2 mols of propylene oxide in the presence of benzyl trimethyl ammonium chloride.  Other suitable catalysts are also specified. Other specified alkylene oxides are ethylene oxide and butylene oxide.  The products are useful as intermediates for the manufacture of unsaturated polyester resins.
Patent GB-1124851-A (GB)
Title: Improvements in or relating to method and apparatus for use in footwear manufacture
IPC: A43D3/10
Filed: 1966-05-06
Abstract: 1,124,851. Boots &c. BAIN INTERNATIONAL, Inc. 6 May, 1966 [7 May, 1965], No. 19998/66. Heading A3B. A shoe is removed from a last by applying compressed air between the shoe and the last, loss of air between the sides of the shoe and the last being minimised by clamping the sides of the shoe against the last. The last (not shown) is positioned on a hollow last pin 50 through which compressed air is supplied, the compressed air passing through a passage in the last to act between the sole of the shoe and the last. The shoe is clamped against the last by clamping pads 72, 74, 76, 78 which are mounted on arms 68, 70 which are swung about pivots 108, 110 to clamp the shoe by a piston and cylinder 90. The rearmost pads 74, 78 can pivot freely about a transverse axis so that the heel of the shoe can rise when compressed air is supplied to the interior of the shoe. When this operation has been completed the clamping pads are retracted and the last can be broken and the shoe removed in the usual fashion.
Patent GB-730037-A (GB)
Title: Improvements in or relating to process for removing foreign materials from raw wool
IPC: D01C3/00
Filed: 1952-08-08
Abstract: 730,037. Cleansing raw wool. PACIFIC FLUSH TANK CO. Aug. 8, 1952 [Jan. 16, 1952], No. 20014/52. Class 120(1). Foreign materials adhering to raw wool are removed by subjecting the wool to the digesting action of active, methane-producing micro-organisms capable of biologically digesting the organic components of the foreign materials without affecting the wool. The raw wool may be introduced into liquor seeded with active micro-organisms, such as sludge from a sewage digester tank or a prepared bacterial culture, and maintained under anaerobic conditions at about 95‹F. Gentle agitation of the liquor and wool allows evolved gas to escape, which is then collected and may be utilised for heating the tank. When fermentation is complete, the wool is removed from the digester, drained, centrifuged, rinsed and dried. In some cases, a final scouring may be desirable. One form of apparatus comprises a tank 2 with a floating cover 3 and a revoluble reticulate drum 7 with open ends for introducing the wool through an inlet 8 and removing to a sump 10 through an outlet 9.