baber/WOPTO huggingface dataset:
Patent GB-740397-A (GB)
Title: Organic derivatives of tetravalent tin and compositions containing the same
IPC: C07F7/22
Filed: 1953-05-19
Abstract: Resinous compositions comprise a chlorine containing synthetic resin, e.g. a chlorine containing polyvinyl resin or a copolymer of vinyl chloride with vinyl acetate, vinylidene chloride or styrene, and as a stabilizer an organo-tin compound of the general formula <FORM:0740397/IV(a)/1> wherein R represents an alkyl or aralkyl hydrocarbon radical, <FORM:0740397/IV(a)/2> represents the anion of an alkyl xanthic acid, and n is 1, 2 or 3. In the examples resinous compositions are prepared containing a copolymer of vinyl chloride with vinyl acetate, dioctyl phthalate and di-n-butyl-tin di-(isopropyl xanthate), and containing the same copolymer, commercial tricresyl phosphate and benzyl-tin tri-(n-butyl xanthate) and the composition is dissolved in a mixture of methyl ethyl ketone and toluene.ALSO:The invention comprises organo-tin compounds of the general formula <FORM:0740397/IV(a)/1> wherein R represents an alkyl or aralkyl hydro <FORM:0740397/IV(a)/2> carbon radical, -(SCOR1) represents the anion of an alkyl xanthic acid and n is 1, 2 or 3, and a process for the preparation thereof by reacting preferably by heating the required organo-tin halide with the required amount of an alkali metal salt of an alkyl xanthic acid.  The R radical may be a methyl, ethyl, propyl, butyl, octyl, dodecyl, octadecyl or benzyl radical.  The xanthic acid radical may be derived from methyl, ethyl, propyl, isopropyl, butyl or octyl xanthic acid or a higher substituted xanthic acid containing up to 18 carbon atoms.  In the examples, di - n - butyl - tin di - (isopropylxanthate), benzyl-tin-tri-(n-butylxanthate) and tri - isopropyl - tin n - butylxanthate are prepared.  The organo-tin compounds are suitable for use as antioxidants and are particularly useful for stabilizing chlorine containing organic compounds, e.g. chlorinated paraffins having from 10-40 carbon atoms.  The organo-tin compounds may be present in a quantity from 0.1 to 10 per cent by weight based on the compound to be stabilized.  In an example, a chlorinated paraffin having an average carbon content of 20 carbon atoms and containing 40 per cent chlorine is stabilized with benzyl-tin tri-(n-butyl xanthate).
Patent GB-995173-A (GB)
Title: Improvements in or relating to the production of hydroperoxides
Inventor: FLAVELL WILLIAM
IPC: C08F8/06
Filed: 1963-04-09
Abstract: Hydroperoxides of polymers of 4-methylpentene-1 are produced by reacting the polymer of molecular weight from 400 to 1000, with an oxygen-containing gas (e.g. air and/or oxygen).  In examples, the reaction is effected with cumene as solvent and cobalt naphthenate as catalyst. Specifications 807,204 and 973,907 are referred to.
Patent GB-838011-A (GB)
Title: Improvements in or relating to gas tight seals in electron discharge tubes
IPC: H01J5/26
Filed: 1956-05-07
Abstract: Ceramics for use in making cylinders and rings for electron discharge devices have a percentage composition of more than 50,26 of aluminium oxide, up to 30 of a manganese oxide, from 2,5 to 2,8 of silica, and up to 4 of at least one compound of the group consisting of the oxides of beryllium, magnesium, zinc, calcium, strontium, barium and cadmium.
Patent GB-839195-A (GB)
Title: Improvements relating to the hardening of metallic objects by an electrical induction-heating process
Inventor: FIRMAN REGINALD ARTHUR
IPC: H05B6/02
Filed: 1956-05-07
Abstract: 839,195. Heat treatment. VICKERSARMSTRONGS (AIRCRAFT) Ltd. April 10, 1957 [May 7, 1956], No. 14165/56. Class 72. Hardening a selected part of a metal object by induction heating is assisted by concentrating the heat generated in the desired region by a conductor in physical contact with the sides of the object at opposite ends of the said region. Apparatus is described for hardening the load-engaging surfaces of the jaws of releasable attachments as described in Specification 572,809. One jaw is pivoted on 16 so that the jaw surface to be treated lies within a heating coil 13 and the two sides of the jaw are in contact with fingers 193 of a bent copper strip 19. Concentration of the heat causes rapid heating, reduces the time of heating, and leaves the bulk of the jaw cool tc effect chilling of the heated surface.
Patent GB-962425-A (GB)
Title: Improvements relating to disc brakes
Inventor: HAMBLING STEWART KEVERN
IPC: F16D65/14
Filed: 1959-04-25
Abstract: 962,425. Disc brakes. GIRLING Ltd. July 25, 1960 [April 25, 1959], No. 14199/59. Heading F2E. In a vehicle disc brake having friction pads 13 mounted in a stationary housing or caliper 10 straddling part of the disc 11, the friction pads 13 are supported against circumferential movement with the disc 11 by links 19 pivoted on pins 18 and extending between the friction pads 13 and anchorages, e.g. recesses 22 and abutments 23, on the caliper 10; on application of the brakes, the links 19 take the torque on the friction pads 13 while permitting them to move freely to and from the disc 11. The friction pads 13 are bonded to steel backing plates 14, one end of each of which forms a knuckle 17 hinged by the pin 18 to the link plate 19 of banjo outline to allow passage of operating piston 15 (not shown); link plates 19 are formed at one end with ribs 21 for engagement with the recesses 22 and abutments 23, and they diverge from the backing plates 14, as the friction pads 13 wear down, at an angle such as to produce a servo action when the disc 11 rotates in a direction placing the link plates 19 under compression, see Fig. 2. In a modification, Fig. 5, the caliper is open at one end and has complementary arms 32 at the other end, each arm being coupled by a pivoted link 43 to an extension lug 42 on each hydraulic piston 35 which is keyed to receive a spigot 38 on each backing plate 39 ; the pistons 35 have convex peripheral surfaces provided with sealing rings 36, so that they can rock. Specification 742,338 is referred to.
Patent GB-1216636-A (GB)
Title: Improvements in and relating to automatic particle counting apparatus
IPC: A44B19/36
Filed: 1969-03-18
Abstract: 1,216,636. Counting particles in liquids. CONTRAVES A.G. 18 March, 1969 [19 April, 1968], No. 14250/69. Heading G4D. [Also in Division G1] In apparatus for counting liquid-borne particles by detecting changes in electrical resistance the count starts when the liquid interrupts one photo-electric beam and stops when it interrupts a second beam. As described in Specification 1,216,635 a pump P sucks the test liquid through an aperture 00, suspended particles affecting the resistance between electrodes 12 and 14. 'The liquid rises in glass tube. Initially, light from a source 46 follows the path R R<SP>1</SP>, Fig. 2, .being fully reflected from the inner surface 310 of tube 3 to illuminate a photo-cell. When the liquid level reaches plane A most of the light passes through the liquid along path R R<SP>11</SP> and the photo-cell is darkened to energize bi-stable 41 and start the counter 42. When the level reaches plane B bi-stable 41 stops the counter and reverses pump P to exhaust the liquid into a jar 17. The process may repeat continuously. A circuit (Fig. 4, not shown) provides for resetting the counter between metering cycles and for appropriate scaling of the count.
Patent GB-1181902-A (GB)
Title: Device for Automatically Controlling the Engagement and Disengagement of the Plate Cylinder
Inventor: KASPAR VACLAV
IPC: B41L39/16
Filed: 1967-03-29
Abstract: 1,181,902. Printing machines. ADAMOVSKE STROJIRNY, NARONDI PODNIK. 29 March, 1967 [30 March, 1966], No. 14269/67. Heading B6C. [Also in Division B8] A rotary sheet-fed printing machine includes mechanism which automatically trips an inking unit 2 and the plate cylinder 3 in the event of faulty sheet feed. A rod 13 reciprocates vertically once for each revolution of the impression cylinder 4 through a cam 16 acting on a follower 15 and lever 14, the rod 13 acting to operate gripper fingers 6 on a feed gripper 5. Under normal operation, a second cam 37 rotating with the cam 16 causes a rod 34 to reciprocate idly. When a faulty sheet feed is detected an electromagnet 17 is energized, thereby moving a rod 32 to the left so that a profiled end 43 of the rod 34 engages a roller 45 on a link 46, pivoting the link about a point 81 and tripping both the inking unit 2, through rods 58, 59 and 62, and the plate cylinder 3, through rod 49, lever 50, an adjustable connection to a rod 55, rod 56 and an eccentric 83. The machine is returned to normal by energizing an electromagnet 21 which acts through rod 32 to swing the rod 34 to the right so that the profiled end 43 engages a roller 44 and the link 46 is pivoted back to its normal position. The inking unit can be manually tripped by pivoting a lever 65 which acts through an eccentric 63 to lift the rod 62 and hence the inking unit 2.
Patent GB-813717-A (GB)
Title: Confection and process for producing the same
Inventor: DOUMAK ALEXANDER J
IPC: A23G3/02
Filed: 1957-05-06
Abstract: 813,717. Moulding jellies. NATIONAL DAIRY PRODUCTS CORPORATION. May 6, 1957, No. 14315/57. Class 87(2). [Also in Group VI] Marshmallows are made from a cooled syrup of sugar, starch, gelatin and less than 19 per cent moisture supplied to a cooled closed beater 10 supplied from 8 with air or nitrogen at 200 lbs. p.s.i. The beating mixture of 30 to 65 ozs. per gallon passes through a pressure control valve 21 to a gear pump 26 which delivers it through a row of extrusion nozzles 28 delivering lengths 29 of marshmallow on to a travelling belt 30 where the lengths are severed by reciprocating cutter 41 in a starch containing hopper 40. A starch dispenser 35 coats the belt 30 and another dispenser 36 coats the lengths of marshmallow. The individual pieces 42 are fed to a starch containing tumbler and then to a screener. The original sugar in the machine comprises a ratio of mono saccharide to disaccharide of 0À5 to 1À5. The starch and gelatin is less than 7 per cent. of the mixture. The extrusion temperature is from 105‹-130‹F. The starch and gelatin are in about equal parts in the mixture. The saccharides comprise glucose and sucrose. The starch may be from corn, potato, sago or amicca. This method is quicker than depositing the mixture in starch moulds which retract some of the moisture. U.S.A. Specification 2,196,300 is referred to.
Patent GB-1416424-A (GB)
Title: Flow diverting apparatus
IPC: F16K11/065
Filed: 1974-04-01
Abstract: 1416424 Valves M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 1 April 1974 [13 April 1973] 14335/74 Heading F2V A flow diverter valve, e.g. for use in a system incorporating several flow meter lines (88, 89, 90), Fig. 7 (not shown) or a system for filling and emptying tanks, comprises a body 10, Fig. 1, made up of sections and provided with three axially-spaced flow openings 16, 17, 18. Sleeves 11, 12 are located between the openings and sealingly co-operate with a pair of closure members 28, 29 carried by an actuating rod 23. Each member comprises two resilient cups 31, 32 which are radially contracted when the member enters one of the sleeves 11 and 12. The members 28, 29 are movable from the position shown in which the opening 17 communicates with the opening 16, to a position in which member 28 is instead located within sleeve 11 to communicate the opening 17 with opening 18, or to a position in which the members 28, 29 are located respectively within sleeves 11, 12 to isolate the openings from each other. When members 28, 29 are located in sleeves 11, 12, any leakage across the members is indicated by lamps 55, 56 selectively energized via switches 51 to 54 if the pressure difference in the space between the cups 31, 32 of a member and in a region adjacent the associated sleeve is above or below a predetermined value. The rod 23 may be manually operated or operated by an electric motor 25 controlled remotely via a circuit incorporating a three-position selector switch (60), Fig. 6 (not shown), limit switches (62, 63, 64), indicating lamps (71, 72, 73) and a bi-stable switch (66). In an alternative embodiment, Figs. 8 to 11 (not shown), two closure members (101, 102) are mounted on a hollow actuating rod (104) and a third closure member (103) is mounted on a rod (107) telescoped within the rod (104), each rod being movable via a respective piston (116, 121) of a common hydraulic actuator. Moreover, the leakage indicating means employs pressure gauges instead of lamps.
Patent GB-1252063-A (GB)
Title: Dc-dc converter for a photoflash
IPC: H05B41/282
Filed: 1969-03-19
Abstract: 1,252,063. Transistor blocking oscillator circuits. ATES COMPONENTI ELETTRONICI S.p.A. 19 March, 1969 [5 April, 1968], No. 14362/69. Heading H3T. [Also in Division H2] A D.C.-D.C. converter, for a photoflash tube, comprises a blocking oscillator utilizing a Darlington pair of transistors T1, T2 having feedback viawindings N1, N2 of a transformer and a diode D poled to rectify the output from winding N3 when the transistors are non-conductive. Capacitors C1, C2 reduce the transistor switching time. Inductor L prevents saturation of T2 when T1 is saturated. Resistor R prevents spurious oscillation due to stray L and C in the transformer.
Patent GB-129306-A (GB)
Title: Improvements relating to the Manufacture of Nitro-phosphate Fertilisers.
IPC: C05B11/06
Filed: 1916-08-01
Abstract: 129,306. Cocking, A. T., and Kynoch, Ltd. Aug. 1, 1916. Manures.-A nitrogenous manure is obtained by using the mixture of ammonium sulphate and sulphuric acid obtained in the production of nitric acid from ammonium nitrate by the process described in Specifications 125,444 and 129,305, to treat phosphatic material, either alone or with the addition of water or acid. Waste acid from nitrations is preferably used in the production of the nitric acid and ammonium sulphate. Specifications 872/70 and 8902/93, [Class 1, Acids, alkalies, &c.], are referred to.
Patent GB-561240-A (GB)
Title: Plastics
IPC: C08L1/08
Filed: 1942-10-16
Abstract: A plasticizer is incorporated into a waterinsoluble thermoplastic cellulose derivative by dissolving the cellulose derivative in a hot homogeneous liquid medium comprising the solvent-plasticizer and one or more volatile liquids, this medium being a solvent when hot but a non-solvent when cold, and the volatile part of this medium being a non-solvent even when hot, cooling the solution and then removing the bulk of the volatile liquid from the plasticized cellulose derivative.  Preferably, the proportions of plasticizer, non-solvent and cellulose derivative are such that on cooling the solution solidifies as a whole, instead of separating into a solid phase and a liquid phase, and preferably the proportions are such that by the time the solution has been cooled to about 25 DEG  C. it has solidified in granular form.  The hot solution may be filtered.  The nonsolvent may be a single liquid or a mixture of liquids.  Ethanol, methanol, or propanols, may be used alone or mixed with water. Solutions in which the ratio of cellulose derivative plus plasticizer to non-solvent is between 60 : 40 and 70 : 30 are generally most suitable.  In an example, a solution of cellulose acetate in a mixture of ethanol and dimethyl phthalate is made at 75-80 DEG  C. It is then cooled while being stirred and a powder suitable for compression or injection moulding or extrusion is obtained.  The alcohol is removed by evaporation.  Instead of dimethyl phthalate, tri-(monochlorethyl) phosphate may be used.  In other examples, hot solutions of ethyl cellulose are prepared, using ethanol, water and tricresyl phosphate.  Other plasticizers which may be used are diethyl phthalate and dibutyl phthalate.  Moulding powders are obtained on cooling the solutions.  For cellulose acetate, the plasticizer may be diethyl phthalate, dimethoxy-ethyl phthalate, methyl phthalyl ethyl glycolate, or triacetin.  Small amounts of plasticizers of low or no solvent power, e.g. triphenyl-, tricresyl-, or tributyl-phosphate, in the case of cellulose acetate, may be used. Other cellulose esters or ethers may be treated, e.g. cellulose acetate-stearate or ethyl hexyl cellulose.  Dyes, pigments, ultra-violet ray absorbers, substances which polarize transmitted light, wood flour, asbestos, cellulosic fibres, barium sulphate, or other substances may be incorporated in the compositions.  The plasticized stock may be used in the production of laminated materials, e.g. fabrics for collars, shirt fronts, belts, straps, or sweat bands, fabrics for aircraft, and materials such as plywood and fibre-board.  The plasticized material may be used as a binder for sawdust or wood chips in the production of mouldable constructional materials. Specification 559,468 is referred to.  The Provisional Specification refers also to the use of organic polymers other than cellulose derivatives, e.g. polyvinyl acetate, chloride and acetate-chloride, polystyrene, polymethyl or ethyl-acrylate or methacrylate.
Patent GB-432459-A (GB)
Title: Improvements in sockets for tubular electric light sources
IPC: H01R33/02
Filed: 1934-05-14
Abstract: 432,459. Electric - lamp holders. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent-Treuhand- Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) May 14, 1934, No. 14525. [Class 39 (ii)] A socket adapted to engage the lateral cap of a tubular lamp comprises two parts, namely, a base 4 carrying one or more terminals 12, 13 for the lead or leads and carrying a conductor 9 adapted to contact with the cap contact and a housing 5 detachable from but adapted to be secured to the base and carrying locking means for securing the cap within the housing. The locking means comprises a ball 18 engaging a recess 3 in the cap, such ball being spring pressed at 19 and being fixable relative to the housing by means of a screw 20 having an enlargement 21 to prevent loss when in the retracted position. The conductor 9 is carried by a spring 8 enclosed in a casing 10. The housing and base are held together by screws.
Patent GB-200305-A (GB)
Title: A method of constructing spring mattresses and the like
IPC: A47C23/043
Filed: 1922-05-24
Abstract: 200,305. Mulford, J. G. May 24, 1922. Spring surfaces.-A spring mattress or the like in which the springs act independently comprises a padded top 4 secured by its lower edges to a box frame 1 containing helical springs 3 mounted on transverse battens 2 and having their axes perpendicular to the padded surface. The borders 6 of the padded top are quilted and the upper and lower surfaces are buttoned through, the top coils of the springs being attached to the under surface so that each spring is concentric with a button 7 in each alternate transverse row of buttons. Tarpaulin is used for the bottom 9 of the pad, while a band 10 is arranged around the sides of the mattress into which the bedclothes may be tucked.
Patent GB-709791-A (GB)
Title: Improvements in or relating to reversible disc ploughs and the like
IPC: A01B5/14
Filed: 1952-06-10
Abstract: 709,791. Agricultural implements. CURTIS, N. R. June 10, 1952 [June 14, 1951], No. 14633/52. Class 6 (1) A reversible disc plough comprises a sleeve 14 carrying discs 18 and a depth wheel 19, rotatably mounted on a transverse beam 9 connected to power operated lifting links 2, 6 on a tractor. The discs are reversed by means of an operating lever 24 pivotally mounted on a structure 8 and loosely connected to the link 6 and connected to a rocking lever 23 on the sleeve 14 by means of a pitman 26 which consists of two parts telescopically connected together. When the plough is raised by the lifting links, the operating lever 24 is moved to reverse the discs, the movement being completed when the discs are lowered into the soil. A spring operated rocker may be provided to assist the rocking lever over the dead centre position.
Patent GB-794670-A (GB)
Title: Improvements in or relating to refractor members for lighting fittings
Inventor: BEGGS STANLEY SUTTON
IPC: F21V5/00
Filed: 1955-05-20
Abstract: 794,670. Light refractors. GENERAL ELECTRIC CO., Ltd. May 1, 1956 '[May 20, 1955], No. 14642/55. Class 75(2) In a transparent refractor member of the kind having the form of part or whole of a surface of revolution, carrying light directing elements in radial planes containing the axis of revolution and designed to produce from an azimuthally symmetrical light distribution from a light source S on the axis and emergent light distribution which is azimuthally asymmetrical having a maximum intensity in a preferred radial plane Pl and falling off in intensity on either side thereof without discontinuities, the light directing members consist of elements which spread the light without changing its mean direction and extend over an azimuthal angle of at least sixty degrees on each side of the preferred radial plane P1, the angle of spread being least for the elements near the preferred plane P1 and increasing with increase of azimuthal angle therefrom. The refractor member shown is of bowl shape having frustoconical sides and the light directing elements are flutes arranged in two sets svmmetrical about the diametral plane X-X, each set containing seven groups 1...7 and each group having flutes of the same angle of spread. The angle of spread of the flutes of a group is determined in accordance with the formula D = 2 f# where f is not greater than unit y and # is the azimuth angle for the central flute of the group measured from the preferred plane P1. The angular width of a group does not exceed #/f where # is the angle subtended at the centre of the group by the light source. The flutes may be replaced by prisms positioned so that the incident rays are divided equally on the two working faces of the prisms. The flutes or prisms may be on the inside or the outside of the bowl. The surface opposite the flutes or prisms may have parallel rows of prisms in planes perpendicular to the axis of revolution of the bowl. Specification 424,800 is referred to.
Patent GB-238985-A (GB)
Title: Improvements in apparatus for regulating automatically the supply of feed-water to steam generators and the like
IPC: F22D5/16
Filed: 1924-06-17
Abstract: 238,985. Clark, R. June 17, 1924. Safety-valves.-An apparatus for regulating the supply of feed water by means of a pressure fluid subject to varying temperature due to variations in the boiler water level, is provided with an automatic valve to control the flow of liquid from its closed circuit into the pressure-producing chamber which is in contact with the boiler water and/or steam. A chamber a has passages b communicating with the actuating device of the feed-water regulating valve c with the flow side, and d with the return side of the closed system. The passage d is controlled by a valve e secured to an actuating diaphragm h, and moving over a fixed spindle l. A stop o is provided on the spindle which is threaded into a sleeve n screwed into the casing r. The stop o is adjustable by moving the sleeve n. The adjusting sleeve is protected by a cap t. The valve opens at a predetermined pressure in the chamber a.