baber/WOPTO huggingface dataset:
Patent GB-545001-A (GB)
Title: Active contact masses
IPC: B01J37/03
Filed: 1941-03-26
Abstract: 545,001. Catalytic gels. HOUDRY PROCESS CORPORATION. March 26, 1941, No. 4067. Convention date, April 10, 1940. [Classes 1 (i), 1 (ii) and 1 (iii)] Gels for use as contact masses are prepared by mixing a solution of a metallic compound with an inhibited co-agulant which releases the co-agulant within the mixture to produce a colloidal precipitate. The inhibited co-agulant is an unionizable complex which slowly dissociates to yield the co-agulant. In the preparation of gels consisting of oxides of chromium, titanium, zirconium, molybdenum, or beryllium the co-agulant may be ammonia, ethylene diamine, pyridine, dimethyl amine, or quinoline inhibited by being combined with formaldehyde. In the production of acidic gels such as tungstic, stannic, or silicic acid, the co-agulant may be an ester or other unionizable compound of an organic or inorganic acid, e.g. methyl or ethyl oxalate, formate, or borate, oxamide, and aromatic or acyl sulphonates.
Patent GB-725434-A (GB)
Title: Improvements in and relating to the preparation of mica
IPC: C04B14/20
Filed: 1953-02-13
Abstract: Moistened pieces of mica, preferably permeated with water, are split into flakes by freezing.  A mechanical treatment may precede and/or follow the freezing.  The pretreatment may also be heating to a temperature not above 300 DEG C.  The freezing may be repeatedly applied.  Insulating parts can be obtained by pressing the flakes, or by the use of a binder therewith.
Patent GB-157654-A (GB)
Title: Improvements in or relating to piston pumps
IPC: F04B53/10
Filed: 1920-02-10
Abstract: 157,654. Swainson, R. A. Feb. 10, 1920. Indicating action of; strainers; valves and valve seats, arrangement of; valves, facilitating removal of.-In a double-acting pump, suction and delivery valves k, k<1>, j, j<1> are arranged in a removable cylindrical casing housed in the side of the pump. The frame may contain hinged flap valves, or ball or beat valves. The hinged door m may have transparent inspection portions p. The passages d, e connecting the valve chamber to the cylindrical ends are provided with pockets r to collect grit. The suction and discharge are shown at g, f. The piston of the pump is made of two cast-iron flanged plates supporting a bronze packing carrier with rubber rings interposed to permit self-aligning.
Patent GB-852454-A (GB)
Title: Moulding apparatus for hollow construction elements
IPC: B28B7/28
Filed: 1959-02-05
Abstract: 852,454. Moulding hollow concrete elements. PAKOZDI, J., and SABO, B. Feb. 5, 1959, No. 4092/59. Class 87(2). A mould comprises a base, a pair of side walls and a pair of end walls removably secured to the base and cone which are carried by the end walls without penetrating them. The base 12 is recessed at 14 to receive lugs on the bottoms of side posts 18 to which the sides 20 and ends 22 of the mould are fixed. Strips 22, 25 on the inner faces of the end walls form cradles for hollow cores 28. To mould a hollow concrete element 40, a layer of concrete is poured on the base, the cores are fitted, and strips 32 are nailed across the ends of the cone to prevent them from floating on the concrete, the remainder of which is then poured in. To facilitate their removal the cores are covered with rubber sheeting 36.
Patent GB-238470-A (GB)
Title: Improvements in and relating to perambulators and the like
IPC: B62B9/18
Filed: 1925-02-14
Abstract: 238,470. Boyd, J. H. C. Feb. 14, 1925. Strip and thin plate springs; indiarubber springs.-In an undercarriage for a perambulator, invalid chair, trolly, or similar vehicle, the longitudinal springs 15 secured to the wheel axles have their ends scrolled into double C-form the two portions 19, 20 of which are relatively reversed. The ends of the springs are connected to the frame 6 by annular indiarubber shackles 23, preferably reinforced by embedded fabric 24, and connected to the springs and frame by bolts 22, 28 and curved plates 25, 29. Specification 238,469, [Class 108 (i), Road vehicles, Body details &c. of], is referred to.
Patent GB-630959-A (GB)
Title: Improvements in or relating to motor pumps
IPC: F04D13/06
Filed: 1946-02-12
Abstract: 630,959. Stuffing-box substitutes. BYRON JACKSON CO. Feb. 12, 1946, No. 4321. Convention date, Feb. 13, 1945. [Class 122 (v)] A motor-driven pump comprises a housing 18 filled with dielectric liquid in which the motor is immersed and the shaft 7 extends through a liquid seal 11 and drives an impeller 8. The shaft is sealed at the walls of the liquid seal 11 by rubbing collar devices 23, 24 as described in Specification 631,022, and the bellows 25 equalizes the pressure between the motor housing and the liquid seal as described in Specification 630,958. The delivery pressure of the pump acts through pipe 28 which is connected to the chamber 27 surrounding a chamber 26 and connected thereto by ports 32. The lower part of both chambers contains an inert liquid and this transmits the pump delivery pressure to the dielectric liquid contained in the upper part of the chamber 26 which is in communication with the motor housing. The chambers 26, 27 may be arranged as separate cylinders connected at their lower ends. Instead of using an inert fluid, the dielectric liquid and the pumped fluid may be separated by diaphragms.
Patent GB-621302-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K21/20
Filed: 1947-02-14
Abstract: 621,302. Propelling pencils. MAHLER, D. Feb. 14, 1947, No. 4397. [Class 146 (iii)] In a propelling pencil of the kind in which an internal lead-carrying tube is adapted to be pressed forwardly by hand and returned by spring pressure, a clamping device carried by the tube being adapted to be closed to grip the lead during its forward movement by a slidable clamping sleeve adapted to engage abutments at each end of its travel, the clamping sleeve is permanently housed within the nose portion 12 of the pencil. The clamping sleeve 25 has a part 30 which co-operates with a clamping device 20 formed on the end of a lead-carrying tube 17, and is movable between two abutments 27 and 28 formed in the nose 12. Depression of the button 19 causes the device 20 and sleeve 25 to advance until the sleeve 25 is arrested by the abutment 27, after which the lead 29 is released by the clamping device 20 and is gripped lightly by a bore 33 while on release of the button 19 the sleeve 25 and device 20 are retracted by a spring 21 until the sleeve 25 is arrested by the abutment 28, after which the sleeve 25 closes the device 20 to grip the lead again The push button assembly 15 and the body portion are connected by a connector 14 provided with a flange 34 which ensures that the connector 14 is correctly positioned in the casing.
Patent GB-855713-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H3/10
Filed: 1957-02-08
Abstract: 855,713. Electrophonic musical instruments. DEREUX, J. A. Feb. 8, 1957 [Feb. 16, 1956], No. 4452/57. Class 88 (2). In an instrument of the type in which the tones are produced by the rotation of scanning discs in proximity to stators carrying annular waveform electrodes, each generator consists of one scanning disc 1 (Figs. 1, 5), rotating between two stators 2 (Figs. 1, 3), parallel to the disc and equidistant therefrom, the waveform electrodes 3 (Fig. 3), on the inner surface of one of the stators being the mirror images of those on the inner surface of the other. The disc and stators are formed of insulating material, such as that known under the Registered Trade Mark " Plexiglass," which is metallized with a film of a few microns thickness, the waveform electrodes 3 and the scanning electrodes 4 (Fig. 5) being defined and insulated from the remainder of the metallic coating by thread-like grooves which pass through the coating and lay bare the insulating material. The electrodes 3 are connected to metallic strips 7 on the outer surface of the stator by means of holes 8 (Fig. 4), the strips being formed in the same manner as the electrodes, and the walls of the holes 8 being metallized. The strips 7 terminate in terminals 9 riveted to the periphery of the stator. The radial electrodes 4 of the disc are inter-connected at the periphery by a circular strip 11, the whole of the electrodes of the two faces of the disc being connected together by a hole 12 similar to holes 8. Those parts of the metallic coating of the two faces which do not form electrodes 4 are connected by a similar hole 13. The electrodes 4 are connected to the extremity 15 of the hub (Fig. 1), and the rest of the coating to the extremity 14, these extremities being metallized. The disc shaft 16, having a keyedon flywheel 19, is driven via a spiral spring 20, by a pulley 21 freely mounted on the shaft. The contact 22 is connected to ground, and contact 23 to the amplifiers and loud-speakers of the instrument. A transparent adhesive strip (not shown) is applied around the casing to prevent the ingress of dust. Four notches 30 spaced at 90 degree intervals round the stator provide reference axes to facilitate the accurate production of the waveform electrodes by printed circuit techniques.
Patent GB-1114013-A (GB)
Title: Improvements in or relating to transformers
IPC: F42C19/06
Filed: 1967-01-30
Abstract: 1,114,013. Transformers. SKODA OBOROVY PODNIK. 30 Jan., 1967 [16 March, 1966], No. 4458/67. Heading H1T. [Also in Division H2] An A.C. traction system is fed by way of two transformers 3, 4 which may be wound on a common magnetic core 5, the transformer 3 being formed as a tapped autotransformer and interconnected with the transformer 4 of a fixed turns ratio, the two transformers being constructed to give the transformer 3 a seriescapacity at least ten times that of the primary winding 2 of the transformer 4. The coils 1 of transformer 3 are disc-like in form andare wound in pairs which are interleaved and interconnected. The coils are arranged in two groups 6, 7 each group having coils provided on each limb of the core 5, the pairs of coils on one limb being connected' in parallel with the pairs on the other limb. The windings of transformer 3 are tapped for interconnection with the primary winding of the transformer 4. This winding is formed of pairs of disc-shaped coils 2 interposed between the coils 8 of the secondary winding of the transformer 4.
Patent GB-433213-A (GB)
Title: Improvements in or relating to knitted fabrics and to methods of producing them
IPC: D04B1/00
Filed: 1934-02-10
Abstract: 433,213. Knitted fabrics. BONSER, F., Brookside, and REYNOLDS, W., Renola Works, both in Watnall Road, Hucknall, Nottinghamshire, and WILDT & CO., Ltd., Adelaide Works, Leicester. Feb. 10, 1934, No. 4468. [Class 74 (ii)] An interlock fabric produced by weft knitting is formed of at least two separately laid yarns A, B, one face being formed wholly of the yarn A while the other face is composed mainly of the yarn B. Each yarn may be replaced by a set of yarns. The sinker loops of the yarn A may cross as shown, or, if the alternate long loops are held up, a fabric the sinker loops of which do not cross is produced.
Patent GB-413235-A (GB)
Title: Safety latch for electric switch boxes
IPC: H01H21/06
Filed: 1934-02-10
Abstract: 413,235. Switch cases. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, POOLEY, A. M., Riverdale, Tixall, and HEATH, A. A., Lydstep, Rowley Park, both in Staffordshire. Feb. 10, 1934, No. 4484. [Class 38 (v).] An enclosed switch is interlocked with the cover so that normally the switch cannot be closed when the cover is raised, but the latch is adapted to be moved manually to permit closing of the switch for test while the cover is raised. A latching pawl 3 pivoted to the casing is biassed in a clockwise direction by gravity and when the cover is closed a lug 4 on the cover engages the pawl to turn it anti-clockwise to move the left-hand end of the pawl out of the path of a pin 2 on the switch operating member 1 to allow it to turn anti-clockwise to close the switch as in Fig. 1. Known means (not shown) are provided for preventing the cover from being raised while the switch is closed.
Patent GB-942522-A (GB)
Title: Blast yield meter
IPC: G21J5/00
Filed: 1962-02-06
Abstract: 942,522. Regulating fluid flow. UNITED STATES ATOMIC ENERGY COMMISSION. Feb. 6. 1962 [Feb. 24, 1961], No. 4577/62. Heading G3H. [Also in Division H4] A pressure transducer used in blast yield measuring apparatus (see Division H4) includes a pressure equalizing plug comprising a cylindrical block 94 of sponge rubber compressed inside threaded plug 92 by screw 93 so as to regulate the rate of flow of air through holes 95 and 96.
Patent GB-621319-A (GB)
Title: Improved display figure
IPC: A41H5/00
Filed: 1947-02-18
Abstract: 621,319. Lay figures. WILKEN, J. H. Feb. 18, 1947, Nos. 4621 and 4622. Convention dates, March 7, 1946 and May 21, 1946. [Class 52 (v)] A lay figure has the trunk in two parts, the lower part 8 being set inwardly at the hip line 9 and the upper part 11 being shaped to overlap and fit slidably upon the top portion of the lower part, the parts being held together by tension springs 14, 15 within the parts. The springs are anchored between bars 13, 16 fixed within the parts and a compression spring 18 is also connected to the bars by wires or rods 19. An inward projection 12 on the upper part limits the sliding movement. In a modification the lower ends of the springs are anchored to a floating bar adjustably connected to the bar 16 by a screw.
Patent GB-866342-A (GB)
Title: Improvements in steam turbine power plants
IPC: F01K7/44
Filed: 1960-02-10
Abstract: 866,342. Heating air for combustion. BABCOCK & WILCOX Ltd. Feb. 10, 1960 [Feb. 13, 1959; April 30, 1959], No. 4679/60. Class 51 (1). [Also in Group XIII] Combustion air for the steam generator of a turbine power plant is heated by superheated steam bled from a low-pressure turbine 6 in air heaters 40, 42, 44, and the desuperheated steam is used to heat feed water from a condenser 7 in series heaters 11, 12, 13. Before passing to the heaters 40, 42, 44 the air is preheated in one or more heaters 32, 34, 36. Part of the combustion air delivered by a fan 20 is heated by the flue gases from the steam generator at 4, the remainder passing to the air heater 32. The air from each of heaters 32, 34, 36 is divided, part passing to the heaters 40, 42, 44 receiving superheated steam bled from the turbine 6, and part passing through the remaining heaters 34 and/or 36, or direct to the furnace. The desuperheated steam from each of the heaters 40, 42, 44 is divided, part passing to the feed water heaters 11, 12, 13 respectively and part passing to the air preheaters 32, 34, 36. The air from the heaters 40, 42, 44 and 36 and from the heater 4 may be mixed before passing into the furnace, the temperature being controlled by regulating the proportion of air passing through each path. In a modification, Fig. 2, not shown, combustion air preheated in part of a section of an air heater in the flue gas path is heated first by desuperheated steam and then by superheated steam bled from the lower pressure stage of a turbine, while air which has passed through one or both sections of the two-stage air heater in the flue gas path is first heated by superheated steam from the low-pressure turbine stage and then by steam from the highpressure stage. The desuperheated steam from the air heaters is passed to the series-arranged feed water heaters.
Patent GB-349113-A (GB)
Title: Improvements in or relating to traffic control signalling devices
IPC: G08G1/095
Filed: 1930-02-12
Abstract: 349,113. Signalling lamps. WALKER, C. B., 38, South Bar, Banbury, Oxford. Feb. 12, 1930, No. 4696. [Class 75 (iv).] Lantern screens.-In a road traffic control signalling standard the light for each signal is passed downwards through one of a set of coloured screens, mounted in a frame rotatable about a vertical axis, and then reflected substantially horizontally, the frame being intermittently rotated to give the red, amber, green and amber signals. The illumination may be by electric lamp or daylight, the period of each signal being displayed by a pointer moving over a dial. The apparatus comprises a casing A having a glass cover B, Fig. 1, through which illumination is obtained during daylight. At night time the light from lamps C, C carried at the ends of the four-armed bracket D rotatably mounted in a bracket E is reflected by four equally spaced mirrors F<1> in a substantially horizontal direction along the roads at a crossing, a rotatable disc F carrying coloured screens giving the coloured signals red, amber, green, amber, red in succession from each dial K, opposite dials giving a red signal when the other two give a green signal. A continuously rotating shaft M, Fig. 4, drives, through gearing e, d, f, g, h, j, k, Fig. 3, a bevel wheel m loosely mounted on the shaft G which drives three other bevel wheels k<1> .. , the four bevel wheels meshing with m driving pointers q which make one revolution round their respective dials K for each lamp signal and therefore indicate the time to elapse before a signal change will occur. The shaft M also drives through bevel wheels N, P, Fig. 4, a sleeve Q, splined shaft T, worm V, worm wheel J, the shaft G to which the screening disc F is attached. The shaft G is held in position to give a definite signal by a finger b engaging a stop a on the top of a disc W, Fig. 6, integral with the shaft G during which time the shaft T will move axially against the spring C the drive between the bevel wheels N, P being ultimately broken by the nut T<1> abutting against the sleeve Q. When the signal is to be changed the finger b is released by external electric means, the spring C causes rotation of the worm J and shaft G in a direction reverse to the drive of the shaft M until a stop a<1> is held by a finger b<1>. The bevel wheel m carries integral therewith a disc b<4> having pegs b<3>. When the pointers q reach their top position one of these pegs will rotate slightly the detent b<2> mounted on the same spindle as the finger b<1>, the latter being turned out to release the peg a<1> when the shaft G will rotate until the second peg a is held by the second finger when the operation is the same. Each mechanical release of the shaft G corresponding to the end of the yellow signal will thus take place when the pointers q point vertically upwards.
Patent GB-820553-A (GB)
Title: Process for the production of anhydrous formic acid and nitrates from calcium formate
IPC: C07C51/02
Filed: 1956-02-16
Abstract: In a process for the preparation of anhydrous formic acid by reacting calcium formate with aqueous nitric acid in the presence of urea, extracting the formic acid from the resulting reaction mixture by means of an inert water-immiscible organic solvent and subjecting the extract obtained to fractional distillation to give anhydrous formic acid, an excess of calcium formate is used in the reaction and the reaction mixture obtained is submitted to an extraction treatment in counter-current with the solvent, an amount of nitric acid which is equivalent to the excess of calcium formate is introduced into the extraction system at a point near where the fresh organic solvent is introduced, and the resulting formic acid extract containing a small proportion of nitric acid is made entirely free from nitric acid by washing with a solution of alkali metal formate in aqueous formic acid, the formic acid content of the solution being in equilibrium with that of the extract.  The extract is then fractionally distilled to remove water and solvent and recover anhydrous formic acid. Preferably, the reaction mixture subjected to the extraction contains a 13-15% molar equivalent excess of calcium formate and only sufficient water to maintain a liquid-liquid system during the process and the washing of the extract is effected in stages suitably in such a manner that not more than half of the alkali metal formate is converted into nitrate.  62-63% nitric acid may be used in the reaction and extraction stages.  Graphs are given providing data relating to distribution coefficients in three formic acid-nitric acid systems containing sodium or potassium formate, calcium nitrate, and calcium formate respectively, the solvent being di-isopropyl ether.  German Specification 831,240 and Swiss Specification 162,631 are referred to.
Patent GB-932299-A (GB)
Title: Magnetic deflection systems for deflecting charged particles
Inventor: HUNT STANLEY ERNEST
IPC: H01J33/00
Filed: 1961-02-09
Abstract: 932,299. Discharge-apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 2, 1962 [Feb. 9, 1961], No. 4905/61. Class 39 (1). A magnetic deflection system for deflecting a vertical beam of charged particles emerging from a D.C. accelerator, e.g. of the Van de Graaff type, into a horizontal direction comprises two 45 degree deflection magnets 15 whose distance apart can be adjusted to ensure that the final beam is parallel sided. Particles of heavier mass are diverted through a side tube 22 to a target 23 where an electrical signal is derived and utilized to stabilize the voltage of the accelerator.
Patent GB-327092-A (GB)
Title: Improvements in or relating to gas pendants and like fittings
IPC: F23D14/30
Filed: 1929-07-12
Abstract: 327,092. Pain, W. F., and Pain, W. H. July 12, 1929. Divided on 326,119. No Patent granted (Sealing fee not paid). Smut catchers.-In a gas pendant adapted to support an inverted burner a smut-catcher 7 of heat resisting and preferably vitreous material with holes for the passage of tap-chains 11, is supported on a member 6 screwed on a burner downtake pipe 2 which screws into a sleeve 5 on the gas pipe 1. Loosely mounted on the pipe 1 is an ornamental member 8 which rests on the smutcatcher and encloses the sleeve 5, packing 10 and clamping nut 9.
Patent GB-113182-A (GB)
Title: Improvements in and relating to Gas Producers.
Inventor: STEWART JOHN
IPC: C10J3/34
Filed: 1917-04-10
Abstract: 113,182. Stewart, J. April 10, 1917. Charges, agitating.-In connexion with the rotary conical base of a gas-producer, fixed watercooled stirrers 19 are provided, having arms extending over and under the pocket-shaped grates 14 The rotary base may also carry upwardlyprojecting stirrers as indicated by dotted lines at 25.
Patent GB-251573-A (GB)
Title: Temperature alarm apparatus for machines with enclosed moving bearings
IPC: F16C17/24
Filed: 1926-02-22
Abstract: 251,573. Naamlooze Vermootschap Kromhout Motoren Fabriek D. Goedkoop, and Goedkoop, J. Feb. 22,1926. Alarms for bearings; alarms operated by expansion of liquids.-In a temperature alarm for bearings of the kind embodying an expansible liquid-filled capsule, the capsule 2, Fig. 3, acts on a pin 4 which pushes outwardly a lever 5 which is counter - balanced by a weight 13 so that it shall not operate prematurely owing to centrifugal force or momentum. The lever 5 carries a roller 6 adapted to engage a rod 9 when the capsule is expanded and as the bearing 1 rotates or reciprocates with its shaft. The rod 9 normally holds from rotation a rod 10 mounted in the cover 7 of the crank-case 8 and acted on by a torsional spring 12. Thus, when the rod 9 is lifted bv the roller 6 the rod 10 is rotated so that a pointer 11 on it operates a whistle or closes an electrical contact in an alarm circuit.