baber/WOPTO huggingface dataset:
Patent GB-540990-A (GB)
Title: Improvements in and relating to pistons
IPC: F16J9/22
Filed: 1940-07-12
Abstract: 540,990. Making pistons. AUTOMOTIVE ENGINEERING CO., Ltd., WHITE, P., DENNIS, E., and NICOLLE, A. V. July 12, 1940, No. 11641. [Classes 83 (i) and 83 (ii)] [Also in Group XXVI] . Casting composite articles.-In an aluminium or other light metal or alloy piston, a wear-resisting bearing surface for a piston ring is provided by a number of inserts 3 which are separated circumferentially by the metal of the piston and are made of iron, steel, or other material harder than that of the piston body 2. The inserts may comprise similar flat strips or stampings disposed edgewise around the piston and used separately or in small groups, or a fewer number of cast segments. To improve the interlocking of the inserts with the piston body, the former are provided with transverse openings or with lugs 4. To secure their proper location, the inserts may be threaded on a thin flat steel strip by means of openings, lugs, or projections on the outer edges of the inserts, this strip being subsequently removed and the lugs or projections removed during machining of the piston. Alternatively, the inserts may be formed integrally on their outer edge with a narrow lug 6 which locates the assembly in the mould and prevents relative radial displacement, and with a wider lug 5 which is welded to one or a pair of wires 7. The inserts rest in a groove in the mould to prevent axial displacement.
Patent GB-218783-A (GB)
Title: Improvements in sound boxes for sound recording and sound reproducing machines
IPC: G11B3/46
Filed: 1923-05-01
Abstract: 218,783. Marks, E. C. R., (Columbia Graphophone Manufacturing Co.). May 1, 1923. Tool-arms and mountings; sound-box cases.- Relates to gramophones and like sound-boxes of the kind having a needle-arm with a crossbar pivotally mounted between upper and lower knife-edge supports. According to the invention, the cross-bar on its upper side pivotally engages the casing by means of knife-edges and grooves, and at its lower side is formed with knife-edges which are supported by adjustable screws carried upon a resilient support. Fig. 1 shows a complete sound box, Fig. 2, show the parts thereof separated, and Fig. 4 is a detailed sectional view. The casing, which is preferably a die casting, has a flange 12 cut away at 13, 14 to provide flat portions; these, together with the part 16 of the back, form a seating for a member 26 - - 28 which carries downwardly-projecting knifeedges 33. The latter engage with grooves in the upper side of the cross-bar 45, to which the needlearm is attached. The underside of the bar 45 has knife-edges 72, Fig. 4, engaging with supporting screws, adjustably mounted in a resilient flange 25 which is integral with a ring 18. The ring is notched to allow the needle-arm 58 to pass through it, and is screwed to the front of the casing, serving to clamp the diaphragm between its gaskets. The socket 54 which receives the needle has triangulated grooves 55, Fig. 7.
Patent GB-824182-A (GB)
Title: Improvements in or relating to maleic anhydride
Filed: 1956-04-18
Abstract: <PICT:0824182/IV (b)/1> Maleic anhydride is prepared from an aqueous solution of maleic acid by a continuous process comprising incorporating into an aqueous maleic acid solution containing a minor amount by weight relative to the acid of alkali metal cations, a minor proportion relative to the maleic acid of a water-soluble oxy-acid of phosphorus sufficient to avoid appreciable decomposition of maleic anhydride by the alkali metal cations, continuously introducing the resulting maleic acid solution into contact with the vapours of a water-immiscible inert organic liquid, a major proportion by volume of which possesses a B.P. in the range of 110-185 DEG  C., in a distillation zone, while maintaining the inert organic liquid at a temperature above the co-distillation temperature of the liquid with water and at which maleic acid is dehydrated, distilling from the maleic acid solution the gross and combined water of hydration as a codistillation mixture with the inert organic liquid-and recovering the resultant maleic anhydride as bottoms separate from the body of inert organic liquid.  The oxy-acid of phosphorus, e.g. phosphoric acid, is preferably used in an amount in excess of that required to form an acid phosphate with the alkali metal cations.  As shown, an aqueous maleic acid solution containing minor amounts of alkali metal and other cations, obtained by catalytic vapour phase oxidation of o-xylene after removal of phthalic acid and phthalic anhydride, is fed from tank 21 together with controlled amounts of phosphoric acid from tank 22 through pipe 24 into column 23 at a point A, B or C corresponding to the equilibrium concentration point for the feed used.  Xylene is used as water-entrainer and distils over with water, is condensed, separated from water and recycled.  The distilland, mainly maleic anhydride, is maintained at 200-230 DEG  C. by reboiler 27, part being removed intermittently or continuously for further purification, e.g. filtration at 50-60 DEG  C., followed by distillation.  In a comparative experiment, the addition of the phosphoric acid is omitted with consequent decomposition of the maleic anhydride.  Other experiments show the inhibiting effect of phosphoric acid on the decomposition of refluxing maleic anhydride.  Specification 633,814 is referred to.
Patent GB-658733-A (GB)
Title: Improvements in powder sprayers or blowers
IPC: B05B11/04
Filed: 1946-04-17
Abstract: 658,733. Powder blowers. NICOLLE, C. April 17, 1946, Nos. 11835, 11836, 11837 and 11838. Convention dates, May 24, 1943, Dec. 14, 1943, Jan. 18, 1944 and March 15, 1944. [Class 18] A powder blower or sprayer, operated by exerting pressure on its flexible walls, has a discharge tube 2 that is open at both ends to permit an upward discharge of powder and is provided with one or more apertures 3 in its wall, near the discharge end, to permit a downward discharge when the container is inverted. Fig. 1 shows a powder container, made from two shaped sections of resilient plastic material secured together and provided with a discharge tube. 2 that is slidable axially to uncover the inner end of the tube or the aperture 3 for an upward or downward discharge, the inner end of the tube in the latter case being caused to bear against a closure plug 4 which also serves as a base or support for the container. Alternatively, the blower may comprise a stationary discharge tube 2, Fig. 5, carried by a closure cap and provided with an aperture 3 within a compartment 9 which, when filled with powder, partially retards the flow of powder through aperture 3 during an upward discharge but is fed with powder through side wall ports 10 when the container is inverted. In a modification, Fig. 8, (not shown), the compartment is formed by a closure plug, the neck of the container and an apertured disc, whilst in a further modification, Fig. 10 (not shown), the disc has an enlarged central aperture and spaced trays are provided on the tube 2 or in the walls of the container to prevent packing of the powder. Alternatively, the fixed tube may have a cup-like member 12, Fig. 6, located adjacent the aperture 3, and adapted to be closed by a freely movable cover plate 13 when the container is positioned for upward discharge. The aperture 3 may be obliquely disposed to minimize clogging. Specification 452,399 is referred to. The Specification as open to inspection under Sect. 91 also describes a powder blower having a fixed tube terminating within a compartment that is open to atmosphere and to the inside of the container through apertures in the walls of the compartment. It also describes a blower with an internally recessed cork having an integral outwardly directed discharge tube with which a fixed main tube is aligned the recess in the cork forming a chamber that is open to the container through an apertured ring and communicates with the aligned bores of the two tubes through an aperture in the main tube wall or in the cork. This subject-matter does not appear in the Specification as accepted.
Patent GB-393734-A (GB)
Title: Improvements in materials for use in making textile fabrics
IPC: D04B1/14
Filed: 1932-04-25
Abstract: 393,734. Knitted fabrics. MEIWALD, F., Schloss Schonbrunn, Vienna. April 25, 1932, No. 11850. Convention date, Oct. 15, 1931. [Class 74 (ii).] Greater elasticity is produced in knitted fabrics by using knitted tubes or knitted threads instead of twisted or like constructed yarns, the tubes or threads being provided, if desired., with a core. The wales may be at an angle to the axes of the tubes or the loops of consecutive wales may be staggered. Reference has been directed by the Comptroller to Specifications 7315/86, [Class 142, Weaving &c.], 3704/92, 14605/08, [both in Class 74, Lace-making &c.], and 374,606.
Patent GB-1412349-A (GB)
Title: Radioactive halogen monitoring system
IPC: G21C17/07
Filed: 1973-03-13
Abstract: 1412349 Radio-active halogen measurement GENERAL ELECTRIC CO 13 March 1973 [15 March 1972] 11986/73 Heading G1A A system for detecting radio-active halogen in a sample stream containing other radio-active substances, comprises a plurality of filters each capable of collecting and retaining the halogen and allowing other substances to be flushed away by a purge stream, the filters being subjected in turn to the sample stream during successive collecting periods and to a purge stream during flushing periods following the collecting periods, and the radioactive material collected in each filter being measured during successive monitoring periods which start after the beginning of the flushing period and end no later than the beginning of the next successive collecting period of each filter. As shown, Fig. 1, a gas stream containing radioactive iodine and radio-active krypton or xenon, e.g. from a nuclear reactor, and a purge gas, which may be clean air or steam, are passed alternately through a pair of activated charcoal filters 10(1) and 10(2) by valves 11(1), (2) under control of a timer 18. The filters are provided with separate detectors 13(1), (2) the outputs of which are selected alternately by a switch 14 and applied to a ratemeter 16. The timing cycle is such that the radio-activity of each filter is measured while it is being purged after a short time interval for the removal of noble gases which are not accumulated by the filters. The radio-active iodine is absorbed and accumulated so that the radio-activity measurements increase until an equilibrium between the accumulation of gas and the radioactive decay is reached.  The sample gas may be heated before passing to the filters and this assists in the removal of noble gases from the filters. A differentiating circuit may be used in place of or in addition to the ratemeter to indicate the rate of change of the radio-activity. A three filter arrangement is also described, Fig. 5 (not shown), this providing a longer purging interval before the measurement is made. The detectors may utilize Nal crystals.
Patent GB-1104160-A (GB)
Title: Purification of impure cyclohexanone-cyclohexanol mixtures
Inventor: LIDOV REX E
IPC: C07C55/14
Filed: 1965-03-22
Abstract: A cyclohexanone-cyclohexanol mixture is recovered from a mixture containing them and obtained by the partial oxidation of cyclohexane, by recovering by distillation from the product a cyclohexanone-cyclohexanol fraction containing less than 10% by weight higher boiling material and less than 5% by weight lower boiling material, mixing the fraction with an aqueous alkali solution, agitating the mixture, allowing the mixture to separate into an organic phase containing the cyclohexanol and cyclohexanone and an aqueous phase, and separating the organic phase.  The organic phase may be distilled to give pure cyclohexanone overhead and a bottoms fraction containing cyclohexanol.
Patent GB-1483993-A (GB)
Title: Surface acoustic wave devices
IPC: H03F13/00
Filed: 1976-03-25
Abstract: 1483993 Surface wave amplification STANDARD TELEPHONES & CABLES Ltd 25 March 1976 12012/76 Heading H3U Surface waves propagating between an input and an output transducer or a piezoelectric body are amplified by a semi-conductor diode connected to an intermediate transducer. In the embodiment of Fig. 1, tunnel diodes 16 are connected to a plurality of intermediate transducers 15, with respective D.C. biases being applied at points A. Each diode may be provided with an RC damping network. The transducers 15 are spaced to give a mutual phase delay of (2r+ 1)#/2. Fig. 3, not shown, depicts an alternative shunt connection of a diode between two arbitrarily-spaced transducers. In the embodiment of Fig. 4, a pumping frequency signal, e.g. at twice the signal frequency, is applied at X to a varactor diode 46 terminated in an idler frequency transducer 47. Absorber material 48 is provided between adjacent transducers 47. In a modification, Fig. 5, the pumping signal is applied to the diodes by transducer 57a transmitting surface waves to transducers 57 which are connected to respective varactor diodes 56.
Patent GB-355217-A (GB)
Title: Improvements in methods of and means for making tubes of celluloid and the like
IPC: B31C1/00
Filed: 1930-04-16
Abstract: <PICT:0355217/III/1> Tubes of cellulosic material are formed by winding a sheet 4 thereof into a roll whilst immersed in a bath 2 of solvent of the material.  The solvent is purified by passing it through a still 20 and aircooled condenser 28, the solute being removed from the still through outlet 24.  The circulating and air-cooling pumps 29, 32 are operated by one motor controlled by a switch 35.
Patent GB-138243-A (GB)
Title: Improvements in or relating to padlocks for bracelets and such like articles
IPC: A44C5/20
Filed: 1919-05-14
Abstract: 138,243. Day, B. May 14 1919. Jewellery padlocks.-In a pad.ock of the kind in which a notch in the end of the shackle is engaged by a spring bolt, the engaging member 2 is shaped to form a part of the rim 10 of the case. The member 2 may be carried by a tube 5 sliding on the pin 6 and actuated by the push-piece 8. The spring 11 is inserted after the padlock has been put together and soldered.
Patent GB-197185-A (GB)
Title: Improvements in selecting switches
IPC: H01H67/26
Filed: 1922-04-29
Abstract: 197,185. Western Electric Co., Ltd., (Western Electric Co., Inc.). April 29, 1922. Automobile exchange selectors.-In a cross-bar switch wherein a connection is made by the partial rotation of a horizontal bar 18 carrying springs 21 and of a vertical bar 14 carrying guide members 17, the operating spring 21 is bent laterally by the co-operating member 17 and guided into a slot 22 in the card 11, so that the connection is maintained independently of the vertical bar 14, which is freed mechanically and may be operated to effect further connections.
Patent GB-116196-A (GB)
Title: Improvements in Dies for Making Earthenware Rings or Supports for Incandescent Mantles.
Inventor: WARD WILLIAM ARTHUR
IPC: B28B7/18
Filed: 1917-08-23
Abstract: 116,196. Ward, W. A. Aug. 23, 1917. Moulds; pressing- dies; moulding incandescent-mantle rings.- In apparatus for moulding mantle rings, the projections G for forming the gaps in the supporting-bags are arranged in the top of the die F or on the plunger D. In the former case, the projections may form a butt joint with the top of the plunger, or enter recesses H therein. In the latter case, the lugs on the plunger are sufficiently long to enter recesses or holes in the top of the die.
Patent GB-556515-A (GB)
Title: Improvements in or relating to garment-supporting devices
IPC: A41F3/04
Filed: 1942-08-28
Abstract: 556,515. Springs. GEMINDER, M. Aug. 28, 1942, No. 12135. [Class 108 (iii)] [Also in Group VII] A tensioning means for straps, belts, such as for supporting goggles, eye shades &c. and for garment supporting means, such as hose suspenders and shoulder straps and tab ends of braces, comprises a coiled tension spring 5 accommodated within a sheath 1 of non-extensible flexible material, normally puckered when the spring is not extended, the ends of the spring being anchored at 2, 2a directly to the sheath. The sheath may be formed with pockets to receive a number of such springs.
Patent GB-142514-A (GB)
Title: Smoke-consuming device for fire boxes
IPC: F23L1/00
Filed: 1920-05-01
Abstract: 142,514. Boyce, W. D. Jan. 22, 1917, [Convention date]. Air and steam, supplying.-To consume smoke in the fire-boxes of steam-boilers using solid, liquid, or gaseous fuel, the front of the fire-box is provided with hollow stay-bolts on each side of the firing-opening, some of which are used for the admission of air and others for the admission of .steam. In the locomotive fire-box shown in Fig. 2, hoods C attached to the front of the fire-box convey air to the hollow stay-bolts 5. Exhaust or live steam is supplied by pipes 3 to nozzles 4, which are mounted on elbows 9, Fig. 4, each connected by a coupling 8, nipple 7, and an elbow 6 to the steam pipe 3. The connexions between the nozzles 4 and steam pipes 3 pass through hollow stay-bolts 5<1>. By rotating the elbow 9 and the nozzle 4 on the nipple 10 the direction in which steam is supplied to the fire-box through the slit s may be varied. One or more enlargements such as o may be made in the slit s to prevent spreading of the jet and to cause the jet to extend further in the line of projection. Specification 18269/13 is referred to.
Patent GB-636795-A (GB)
Title: An improvements in or relating to electric couplings
IPC: H01R13/453
Filed: 1948-05-04
Abstract: 636,795. Two-part couplings. ELLISON, J. R. May 4, 1948, No. 12164. [Class 38 (i)] A plug is made adaptable to different sized sockets by making the pins tapered or with steps a<1>, a<2>, a<3> of different diameters. In the embodiment shown in Fig. 1, step a3 on each pin is prolonged and screw-threaded into a sleeve e rotatably mounted in the plug body f. This screw-threaded part receives the cable end c and is shrouded by the sleeve e. Rotation of the latter causes the pin to be retracted or projected therefrom so that the part not received in the socket can also be shrouded. Fig. 3 shows a modification wherein the sleeves e are slidable on the pins under pressure of springs g so that they automatically take up their shrouding positions. The pins may comprise coiled wire. A two-part adapter, for coupling the plug to a bayonet socket is also described.
Patent GB-695538-A (GB)
Title: An improvement in centralised lubrication
Inventor: ANDREN CLAES
IPC: F16N7/12
Filed: 1952-05-14
Abstract: 695,538. Lubricating. AKTIEBOLAGET E. FLERON. May 14, 1952, No. 12241/52. Class 12 (iii). A lubrication device for machines having a high-placed transmission enclosed in a case 1 with an oil bath 4 for splash lubrication, comprises a pipe 7 connected to the case 1 above the oil level, the pipe being provided with a wick 8 projecting into the case to pick up lubricant when the transmission operates. The case shown encloses a chain transmission between the engine shaft of a motor-driven lawn-mower and an intermediate shaft 2, which drives the rotary cutter drum and traction roll or wheels of the machine through gearing which inchides a sprocket 5. The sprocket is lubricated by the oil dripping from the pipe 7. A number of pipes may be connected to the case 1 and one pipe may be forked to supply lubricant to more than one point of lubrication.
Patent GB-1026752-A (GB)
Title: Improvements in and relating to electrical coupling devices
Inventor: BUCKLAND ERNEST CLIFFORD
IPC: H01R13/533
Filed: 1962-03-30
Abstract: 1,026,752. Two-part couplings. M.B. METALS Ltd. April 1, 1963 [April 1, 1962], No. 12274/62. Heading H2E. [Also in Division G6] The socket half 1 of a two-part thermocouple connector of the kind described in Specification 1,026,751, is mounted on a fuel element casing 11 by means of a split sleeve 16 having an interrupted end flange 20 which engages a shoulder on the casing 11, a clamping ring 17 which screws over the parts of sleeve 16 and engages an annular member 13 screwed and then welded on to body 1, and a seating block 15 located between the casing 11 and body 1. The body 1 and member 13 are made of stainless steel, and the casing 11 and seating block 15 are of a refractory metal. The thermocouple leads 8, which pass out of a rear body cup 2, are fixed to the sleeve 16 at 22.
Patent GB-750865-A (GB)
Title: Improvements in or relating to stable salts of protoveratrine alkaloids and process of preparing the same
Filed: 1954-04-28
Abstract: The invention comprises the maleate salts of protoveratrine and oxyprotoveratrine (also known as protoveratrine A and B respectively).  They are made by reacting the alkaloids with maleic acid in water and evaporating to dryness, or by reacting the components in organic solvents such that the desired salt crystallizes on standing.  Examples show the reaction of (1) the alkaloid in ethylene dichloride with maleic acid in acetone; and (2) the alkaloid in chloroform with maleic acid in ether.  The above alkaloids can be obtained from the roots and rhizomes of Veratrum album by moistening with alkali, percolating with benzene, extracting with acid, making the extract alkaline and treating it with ethylene dichloride.  The latter solution is evaporated to dryness giving a crude mixture of the various alkaloidal constituents of the plant. The residue is dissolved in ether and allowed to stand when protoveratrine and oxyprotoveratrine separate out preferentially to the other alkaloids.  They can be purified by recrystallization.
Patent GB-567443-A (GB)
Title: An improved sole for boots and shoes
IPC: A43B13/14
Filed: 1943-07-30
Abstract: 567,443. Boots and shoes. PULLUM & METCALFE, Ltd., E. V., and PULLUM, E. V. July 30,1943, No. 12387. [Class 17 (ii)] A sole 2 for a boot or shoe has front and rear sections 1, 4 of wood connected by a flexible jointing strip 5 let into recesses in the two sections 1, 4, flush with the underside of the sole, and backed, to be flush with the top face of the sole, by a flexible filler of balata belting or other material 11. The filler 11 and strip 5 are cut to the contour of the sole at the edges, and may be fastened in place in the sole sections by adhesive or rivets. Lateral slits 12 may be made in the filler 11 to increase the flexibility.