baber/WOPTO huggingface dataset:
Patent GB-684223-A (GB)
Title: An improved device for the mechanical ironing of insulating material on the straightportions of windings and coils of electrical machines and apparatus
IPC: H02K15/10
Filed: 1951-06-22
Abstract: 684,223. Covering cores by winding. MICAFIL, Ltd. June 22, 1951 [June 23, 1950], No. 14917/51. Class 109 [Also in Group XXXV] In a device for hot pressing or "ironing" the insulation on the straight portion 16 of a coil for the winding of an electrical machine, the "ironing" elements being flexible band rings 1, 2 mounted in staggered relationship on the inside of a rotatable drum, provision is made for various lengths of conductor by means of rings 5 which can be added as required to the central part 3 of the drum. The rings 5 can be bolted to either side of the part 3 or to one another and each ring has staggered opposed band rings 1, 2. Both ends of the drum are closed by covers 4. The band rings may be externally heated, e.g. by gas or electricity, or may themselves be electrical heating elements. The coil is supported on arms 15 mounted on a rod 17 carried by a fixed bracket 14. The drum elements 3 and 5 are co-axial and have openings 7 which are in line when they are assembled and form a means for introducing the coil in the drum. The central portion of the drum has gear teeth whereby the drum may be driven from gear wheels 12.
Patent GB-528994-A (GB)
Title: An improved process for the preparation of purified vitamin a ester concentrates
IPC: A61K31/59
Filed: 1939-05-19
Abstract: 528,994. Vitamins, POTTS, H. E. (Distillation Products, Inc.). May 19, 1939, No. 14918. [Class 2 (iii)] Natural or synthetic vitamin A ester is purified especially from vitamin A alcohol by extraction with an aliphatic alcohol such as methyl or ethyl alcohol. In examples (1) a distillate from pollack liver oil is passed in counter-current through ethyl alcohol of 95 per cent. whereby much of the cholesterol, free fatty acid and fish odour are removed together with some of the vitamin A ester which can be recovered subsequently; (2) vitamin A alcohol produced by saponification of a crude fish oil or a concentrate is esterified with acetyl chloride in pyridine, the product being freed from pyridine and volatile matter, by vacuum distillation and then passed in counter-current through ethyl alcohol of 85 per cent. whereby unesterified vitamin A alcohol is removed.
Patent GB-734457-A (GB)
Title: Silthiane polymers and their use in compounding rubber
IPC: C07F7/08
Filed: 1953-05-29
Abstract: A polymeric silthiane is made by reacting a vinylchlorosilane with hydrogen sulphide.  Preferably, as in example I, hydrogen sulphide is passed into a solution of vinyltrichlorosilane and pyridine in benzene heated under refluxing conditions until absorption of hydrogen sulphide ceases, the reaction product which is recovered being a waxy solid at room temperature and having the unit structure CH2 = CH.SiS3/2. Divinyldichloro-and trivinylchloro-silanes may be reacted in a similar manner.  The products are incorporated in elastomer-filler blends in known manner.  Preferably the mixture of elastomer, filler and vinyl silthiane is heated at 250 DEG  to 400 DEG  F. during which the mixture is milled.  On cooling to below 250 DEG  F. other rubber compounding ingredients, including sulphur, vulcanization accelerators and zinc oxide, are added and admixed therewith, and the resulting mixture is shaped and vulcanized in known manner. There are specified: elastomers-natural rubber, polybutadiene and copolymers of butadiene (25 per cent or more) with styrene, acrylonitrile, methyl acrylate, ethyl acrylate, and methyl methacrylate; fillers-precipitated hydrated silicas and calcium silicates, clays, e.g. kaolin, diatomaceous earth, titania, aluminium oxide, carbon black and calcium carbonate.  Other additives are stearic acid, coumarone resin (softener) and Paraflux (hydrocarbon softener).  Tables of physical properties of rubbers made from respective mixes containing vinyl silthianes, vinyltrichlorosilane-glycol reaction products and diethylene glycol, are given.  Specifications 713,396, 714,121, 715,244 and 721,415 are referred to.ALSO:A silthiane is made by reacting a vinyl-chlorosilane with hydrogen sulphide.  Preferably, as in example I, hydrogen sulphide is passed into a solution of vinyltrichlorosilane and pyridine in benzene heated under refluxing conditions until absorption of hydrogen sulphide ceases, the reaction product which is recovered being a waxy solid at room temperature and having the unit structure CH2 = CH.SiS 3/2 . Divinyldichloro- and trivinylchloro-silanes may be reacted in a similar manner.ALSO:Vinyl silthiane polymers (see Group IV (a)) are incorporated in rubber-filler blends, preferably by milling at 250 DEG  to 400 DEG F., e.g. in a Banbury mixer, cooling to below 250 DEG F., adding sulphur and a vulcanizing accelerator thereto, and shaping and vulcanizing the mixture in known manner.  Fillers specified are precipitated hydrated silicas and calcium silicates, clays, e.g. Kaolin, diatomaceous earth, titania, alumina, carbon black and calcium carbonate.  Other additives specified are zinc oxide, stearic acid, coumarone resin (softener), diethylene glycol and Paraflux (hydrocarbon softener).  Specifications 713,396; 714,121, 715,244 and 721,145, [all in Group IV (a)], are referred to.
Patent GB-980053-A (GB)
Title: Extractive distillation process for separating mixtures of esters and alcohols
IPC: C07C31/04
Filed: 1961-04-25
Abstract: Lower alkyl esters of unsaturated aliphatic acids are separated from lower aliphatic alcohols by submitting the mixture to extractive distillation using, as extraction agent, an ester of a b -alkoxycarboxylic acid whereby the alcohol is distilled off leaving a mixture of the unsaturated ester and the extraction agent which is then separated by ordinary distillation.  The process is particularly suitable for separating the mixture of an acrylic ester and alcohol obtained by splitting an ester of a b -alkoxy-carboxylic acid. In Example 1, a mixture of methyl acrylate and methanol, stabilized with hydroquinone, is fed into the bottom portion of a column, which is heated to maintain boiling, while methyl b -methoxy-propionate at 70 DEG  C. is introduced into the head of the column.  Pure methyl acrylate is separated from the sump product by distillation under reduced pressure.  Examples 3, 4 and 5 relate to ethyl acrylate, butyl acrylate and methyl methacrylate, respectively.
Patent GB-708011-A (GB)
Title: Gaseous medium cooler of vortex tube type
IPC: F25B9/04
Filed: 1951-06-25
Abstract: 708,011. Cooling gases; tubular heat-exchangers. GARRETT CORPORATION. June 25, 1951 [June 29, 1950], No. 15000/51. Drawings to Specification. Classes 29 and 64(3) Vortex tubes of the kind described in Specification 405,781 are made of heat conductive material, the heat being dissipated from the tube so that the perssure air fed tangentially into the tube is cooled both by the vortex action and by heat transfer from the surface of the tube. The hot end of the tube may be completely closed. The description and drawings are substantially identical with those of Specification 708,046.
Patent GB-583824-A (GB)
Title: Improvements relating to horticultural frames
IPC: A01G13/04
Filed: 1944-08-07
Abstract: 583,824. Horticultural frames. DUCKWORTH, E. R. Aug. 7, 1944, No. 15013. [Class 20 (i)] Relates to cloches of the type in which glass sheets are held in position by a ridge member D and leg portions A. According to the invention the leg portions are so constructed that their lower ends can be easily bent by hand as at F over the lower edges of the glass sheets. In the form shown, in which the legs are of strip metal, the tops near the handle B may be spring tempered and formed with stiffening ribs while the lower parts are flexible. Members G are threaded on the legs to help retain the glass sheets, and may be stayed apart by a wire strut.
Patent GB-272505-A (GB)
Title: A new method of preparing for sale non-alcoholic drinks derived from fruit
IPC: A23L2/64
Filed: 1927-06-07
Abstract: 272,505. Goodovin, E., (Assignees of Goodovin (nÚe Chartier), M.). June 8, 1926, [Convention date]. Materials for making beverages; fruit extracts. -A fruit-derived non-alcoholic beverage is obtained by preparing its constituents separately from fruit juice and storing them in liquid form in separate containers for subsequent mixture and consumption, the aromatic ingredients mixed with sugar being stored in one container, and the acid constituent of the fruit juice in the other. (Specifications 612/06 and 237,592 are referred to.
Patent GB-1397690-A (GB)
Title: Rotary duplicator
IPC: B41L19/08
Filed: 1973-03-30
Abstract: 1397690 Rotary duplicators G RITZERFELD 30 March 1973 [20 April 1972] 15342/73 Heading B6C In a rotary duplicator for selective line printing a keyboard is used to energize electromagnetic means which through an adjustable stepping mechanism rotate two cams the first of which determines the first line of any particular section to be printed whilst the second determines the last line to be printed. The cams when set cause the structure mounting the swinging impression cylinder to be actuated "on" then "off" and the lines being printed on any one copy are automatically indicated on a lamp board mounted on the duplicator.
Patent GB-763999-A (GB)
Title: Improvements in or relating to a method of and apparatus for removing stubs from mouthpiece cigarettes in the stripping of such cigarettes
IPC: A24C5/36
Filed: 1954-05-25
Abstract: 763,999. Recovering tobacco from cigarettes. MORRIS, J. E., BRIDGER, W. C. H., BYRNE, S., and MOLINS MACHINE CO., Ltd. May 9, 1955 [May 25, 1954], No. 15400/54. Class 130 In an apparatus for removing stubs from defective mouthpiece cigarettes, prior to stripping the cigarettes, a knife 8 moves lengthwise of a cigarette towards the mouthpiece end so as to slit the wrapper and simultaneously engage the stub to eject it endwise from the cigarette. The cigarettes are arranged in a hopper 1 having side walls 2, 3, and are conveyed therefrom in the flutes of an intermittently moving drum.4, a rotating roller 5 serving to sweep back cigarettes not lodged in flutes. The knife 8 comprises a blade mounted on an arm 6 rotated by a shaft 7, so that on each revolution the blade enters one end of a flute in the drum 4, which drum is stationary while the knife passes through a flute. A .cam 14 on the shaft 7 engages an arm 13 of a presser member 10, pivoted at 11, to move the member 10 down to press on a cigarette and hold it in position whilst the knife 8 slits the cigarette wrapper at a short distance from the stub and then engages the stub to eject it endwise from the cigarette. The cam 14 then allows the presser member 10 to be raised clear of the cigarette by spring 12 and the drum '4 rotates one flute pitch to bring another mouthpiece cigarette beneath the knife 8. The cigarettes from which stubs have been removed are transferred to a known stripping means in which the tobacco is recovered. In a modification the knife comprises two blades attached to the rotating arm 6.
Patent GB-372115-A (GB)
Title: Drawing templet and applications thereof
IPC: B43L13/20
Filed: 1931-05-26
Abstract: 372,115. Drawing templets. CRAYONS CONTE, 26, Rue du Renard, Paris. May 26, 1931. No. 15420. Convention date, April 8. [Class 97 (iii).] In a drawing templet, the cut-out portions in the shape of complete geometrical figures include at least one square, other quadrilaterals, polygons of more than four sides, circles of different diameters, and ovals. In the form shown, the transparent templet A has its outer edge cut to various curves a .. e and the cut-out portions include a rectangle 2, two diamonds 26, 29, a pentagon 16, two hexagons 5, 6, an octagon 4, an egg shape 15, and lenticular shapes 7 .. 12. Some of the cut-out portions may have crinkled edges, e.g. 17. The templet may be used for building up artistic designs.
Patent GB-545624-A (GB)
Title: Improvements in centrifugal dust separators
IPC: B04C5/28
Filed: 1941-12-01
Abstract: 545,624. Centrifugal dust separators. DIXON, M. G. (Prat-Daniel Corporation). Dec. 1, 1941, No. 15439. [Class 23] Dust is separated from gases in a centrifugal separator of the multiple-unit type, in which each unit 12 consists of a cylindrical tube 13 open at the bottom and having a closed top through which passes an axial tube 17 forming an outlet for the cleaned gases. Two tangential inlets 19 are provided at diametrically opposite points on the tube 13, and the aggregate width of the inlet openings is greater than the distance between the tubes 13, 17. The length of the inlets is more than one third of the distance from the lower end of the tube 13 to the upper end of the inlets. The units are set in plates 14, 16 and the gas is supplied at the end 11 of the chamber thus formed. The separated dust is expelled from the lower ends of the tubes 13 and collects in the hopper 26 from which it can be discharged when the valve 27 is operated. The clean gas passes from the tubes 17 to the chamber 22. To equalize the gas distribution between the units, the outlet tubes 17 may have caps 23 with central apertures. those nearest the supply having the smallest apertures. In a modification the caps 23 are placed at the lower ends of the outlet tubes 17 and the units may be arranged in short rows in the separator, the rows farther from the supply being placed closer together than those nearer to it.
Patent GB-593879-A (GB)
Title: Improvements in roller adjusting means for printing and like machines
IPC: B41F31/30
Filed: 1945-06-19
Abstract: 593,879. Printing-machines. JONES, K. W. June 19, 1945, No. 15554. [Class 100 (ii)] In printing and like machines a roller 1 such as an ink or water applying roller is adjustable relatively to two other rollers 2, 3, such as a distributing roller 2 and a printing-roller 3 by means which enable the roller 2 to be adjusted radially of the roller 2 and then circumferentially to the roller so as to engage the roller 3 with the required pressure without disturbing the pressure relatively to the roller 2. In one form the roller 1 is mounted in a pair of arms 6 each fitted with a pair of studs 8, 9 which are movable in slots 7 concentric to the roller 2. Each stud 9 is mounted eccentrically in its arm 6 and by rotating its eccentric 99 by means of an arm 10 the roller 1 is adjustable relatively to the roller 2. The arms can then be moved by sliding the pins 8, 9, in the grooves 7, and when the rollers 1, 3, contact, the arms are locked by rotating eccentrics 15 by arms 17 so as to grip the sides of slot 16 in the arms. As shown in Fig. 3 the roller 1 is mounted in lever arms 29 held in the required radial position relatively to roller 2 by means of clamping-screws 34, 35, the arms 29 being carried by slides 26 having slots 27 adjustable relatively to fixed studs 28 on the machine frame. A clamping eccentric 15 holds the slides 26 when adjusted. In a further modification Fig. 5, the roller 1 is mounted in screw-operated slides 39 movable radially relatively to the cylinder 3, and the slides are carried by arms 36 with circumferential slots movable over fixed studs 37 and held in adjusted position by screw clamping-devices. To enable fine adjustments of the roller an eccentric which moves the roller is operated by a worm wheel rotatable by a worm.
Patent GB-1161835-A (GB)
Title: Improvements in or relating to Packing Devices.
Inventor: BERESNEV BORIS IVANOVICH
IPC: F16J15/18
Filed: 1967-04-05
Abstract: 1,161,835. Seals. INSTITUT PHYZIKI METALLOV. 5 April, 1967, No. 15642/67. Heading F2B. Packing for a plunger 10 comprises a bush 1 having external and internal recesses 3, a main packing 4, 5 of right-angled triangular crosssection urged by fluid pressure against an inclined portion of the respective recess, a preliminary packing 6, 7 and support rings 8, 9. The packing 6, 7 may be made of P.T.F.E., lead, aluminium, silicones or graphited asbestos. The packing 4, 5 may be made of metal having plastic properties such as brass, bronze or mild steel. In operation, pressure fluid acts through the preliminary packing 6, 7 to compress the main packing 4, 5 against the inclined surfaces. When the fluid pressure reaches a certain pressure, the packing action of the packing 6, 7 ceases and the pressure directly affects the packing 4, 5. After the packing has been subjected to the maximum working pressure the gaps formed due to the deformation of the packing 4, 5 are closed by a nut 12. At subsequent loads, the packing 4, 5 is no longer subjected to plastic deformation and functions as a resilient body.
Patent GB-543339-A (GB)
Title: Improvements in or relating to internal shoe drum brakes
IPC: F16D65/14
Filed: 1940-10-28
Abstract: 543,339. Internal shoe brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and CHOUINGS, L. C. Oct. 28, 1940, No. 15788. [Class 103 (i)] An internal shoe drum brake comprises a wedgeshaped shoe-spreading device 34 (which may form part of a parking brake) mounted on a fixed supporting plate 37 and in rolling engagement by its inclined surfaces 45, 46 with thrust members 35, 36, pivotally engaged with the shoe webs and provided with rollers 51, 52 running on the back plate 10. In the off position as shown the thrust members engage stop members 54 turned up from the supporting plate 37; tail-pieces on the thrust members engaging the back plate 10 may serve instead of stop members. Alternative spreading means comprise a hydraulic cylinder which has one end closed and a single piston acting upon the free end of one shoe, the other shoe having a free end pivoting on the closed end of the cylinder.
Patent GB-543134-A (GB)
Title: Improvements in the control of electrically operated soot blowers
IPC: B01J31/02
Filed: 1940-10-29
Abstract: 543,134. Control of several motors. BRITISH THOMSON-HOUSTON CO., Ltd., and JEFFERSON, H. F. Oct. 29, 1940, 15807. [Class 38 (iii)] Installations of two or more motor operated soot blowers of the type in which the motors are rotated in opposite directions in a single operation are independently controlled at will by starting switches S each with normally open and normally closed contacts. The motors H1 are connected by line contactors Ml to common reversing contactors F1, Rl. The operation of a starting switch S energizes a line contactor coil Mc whereupon the forward contactor coil Fc is energized through a line contactor interlock M2 reversing contactor interlock R2 and a normally closed control switch ILS. A maintaining circuit for the line contactor is then completed by a normally closed control switch OLS open only in the inoperative position of the blower nozzle and the switch S may be released. At the end of the rotation of the nozzle the'control switch ILS opens and the interlock F2 of the de-energized forward contactor closes a circuit for the reversing contactor coil Rc through the switch S, the control switch OLS, and line contactor interlocks M2, M3 so that the motor reverses and stops when the reverse movement is completed. The interlock M3 prevents the coil Mc of any line contactor being energized from the reverse contactor circuit when another motor is in operation. Indicator lamps L may be provided.
Patent GB-775184-A (GB)
Title: Improvements in and relating to acceleration control means
Inventor: CARTER HOWARD FREDERICK
IPC: B60Q1/44
Filed: 1955-05-28
Abstract: 775,184. Inertia switches; controllers. BRITISH THOMSON-HOUSTON CO., Ltd. May 25, 1955 [May 28, 1954], No. 15888/54. Classes 38(3) and 38(5) [Also in Group XIX]  An acceleration control device comprises an element sensitive to both acceleration of the travelling motion of a vehicle and the gradient of the surface on which the vehicle travels, the sensitive element comprising a pendulum 1 pivoted about an axis below its centre of gravity at right angles to the direction of vehicle motion, stop 4, 5 being provided to limit the swing of the pendulum to a small angle forward of the vertical plane through its pivot axis. In an unaccelerated horizontal travel the pendulum leans against the stop 4. On accelerating the vehicle over a predetermined limit including the gravity effect, the pendulum swings back to stop 5 and operates a switch comprising a pivoted U- member 6, spring 10 and contacts 7, 8.
Patent GB-383214-A (GB)
Title: Improvements in or relating to devices for recording or reproducing combined sound and picture record films
IPC: G03B31/02
Filed: 1932-06-06
Abstract: 383,214. Sound recording or reproducing apparatus associated with kinematographs. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 6, 1932, No. 15975. Convention date, June 6, 1931. [Class 40 (ii).] Comprises sound and picture recording or reproducing apparatus using a combined sound and picture record film wherein the film is driven both through the picture gate and the sound head by a single motor rigidly coupled with the conveying rollers, the speed of the motor being regulated according to any lack of synchronism between the picture and sound. As shown, the combined sound and picture film is fed to a reproducing apparatus from a supply drum 3 by a driven roller 2 and wound up on to a drum 5 by a driven roller 4. The driving motor 2 is geared to the shafts 17, 18 of the driving rollers 2, 4. From the roller 2 the film is drawn with intermittent movement past the picture gate 19 and then over two rollers 21, 22 to a pair of rollers 23, 24. The shaft 25 of the roller 24 drives a centrifugal governor 29, Fig. 2, provided with a brake-disc regulator 30. From the roller 24 the film is led over a soundgate guide 33 through an aperture in which the reproducing light beam is projected on to the photo-electric cell 37. The film is then led over a roller 38 and, in a loop 40, over a tightening roller 39 to the drum 5. The roller 39 is mounted on a lever 42 pivoted at 41, and a spring 44 rigidly clamped at 43 and secured to the lever 42, ensures the correct tension in the loop 40. A rod 45 connected to the lever 42 carries at its free end a contact member 47 while on the governor spindle 28 is mounted eccentrically a cam 48 which imparts a continuous vibratory motion to a pin 49 which carries a contact member 50 adapted to engage with the contact member 47. The contact members 47, 50 are connected by conductors 51, 52 to the circuit of the driving motor 8 and serve periodically to short-circuit a resistance 53 in this circuit. In operation, constant speed of the film past the sound gate is ensured by the operation of the governor 29 but should the speed of the motor 8 vary, the loop 40 will increase or decrease so that the lever 42 is then displaced. This movement alters the duration of contact of the contact members 47, 50 which variation affects the period of short-circuit of the resistance 53 to accelerate or retard the motor 8.
Patent GB-390353-A (GB)
Title: Process for the treatment of phosphatic rocks
IPC: C05B11/06
Filed: 1932-06-06
Abstract: Urea is added to solutions of crude phosphate in nitric acid to precipitate a double salt of calcium nitrate with urea. Precipitation of the double salt may be initiated by seeding, and may be effected during concentration of the solution, and be completed if desired by cooling.  Addition of nitric acid reduces the solubility of the double salt.ALSO:Calcium nitrate is removed from solutions of crude phosphate in nitric acid by precipitation as a double salt, for instance by addition of ammonium nitrate, ammonia and nitric acid, or urea. When excess of nitric acid is used for dissolving the phosphate ammonia only need be added to precipitate the double nitrate. Precipitation of the double salt may be initiated by seeding, and may be effected during concentration of the solution, and be completed if desired by cooling.  The addition of nitric acid reduces the solubility of the double salts.  A part of the iron present is precipitated with the double salt as a complex salt.