baber/WOPTO huggingface dataset:
Patent GB-528761-A (GB)
Title: Improvements in or relating to the manufacture of ª‡-chloroacrylic acid esters
IPC: C07C69/653
Filed: 1939-05-04
Abstract: 528,761. Esters of α-chlorocrylic acid. CRAWFORD, J. W. C., McLEISH, N., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 4, 1939, No. 13394. Addition to 514,619. [Class 2 (iii)] Alkyl esters of α-chloracrylic acid are made by reacting formaldehyde or a polymer thereof with trichlorethylene in the presence of sulphuric acid of at least 80 per cent. concentration, adjusting the water content of the reaction mixture (if necessary) to between 0.3 and 2.0 mols. per mol. of 100 per cent. H 2 SO 4 , adding an aliphatic alcohol, e.g. methyl, ethyl, propyl, or butyl alcohol, and distilling the alcohol-containing mixture at a temperature of at least 80‹C. under normal or reduced pressure. The reaction mixture may be heated to between 80‹C. and its boiling point before adding the alcohol, and the alcohol-containing mixture may be heated for a time below distillation temperature to promote esterification. An example is given of the preparation of methyl α-chloracrylate; methyl α-#-dichlorpropionate is obtained as a by-product.
Patent GB-586853-A (GB)
Title: Improvements in mincing machines
IPC: B02C18/30
Filed: 1944-07-13
Abstract: 586,853. Electric mincers. RABENSTEIN, M., and ZIKEL, W. July 13, 1944, No. 13426. [Class 28 (ii)] [Also in Group XXXVII] The hopper lid 16 of a mincer can be lifted by depressing a pedal 29 through a lever system 20-27, which pivots the lid about its hinged pin 18. The hinged pin 18 carrying a cam 30 which operates the pin 31 of a switch 48 which causes momentary reverse of the current to drive motor 6 and so stops the mincer thus acting as a safety device. The worm conveyer &c. of the mincer is driven by a belt 8 from the motor 6. The tubular casing 4 containing the screw conveyer 11, cutter disc 13 cutter 14 and apertured mincer plate 15 is mounted in the outer casing plate 34a by a ring 35 and ring nut 36. All the mincer and its drive is cased in by plates 34, 2, and 34a to give a clean outline. Electrical controls and circuits for the automatic stopping and for the running are described (see Group XXXVII).
Patent GB-613469-A (GB)
Title: Improvements in or relating to antibiotic substances
Filed: 1946-05-02
Abstract: In the production of an antibiotic substance by aerobic fermentation of an aqueous medium containing soybean meal, dextrose, sodium chloride and a trace of caustic soda, foaming is inhibited by the dropwise addition of a solution of octadecanol in lard oil.ALSO:A streptomycin-like antibiotic substance is produced by growing Actinomyces griseus in or on a liquid nutrient medium whose substantially sole source of nitrogenous and growth-promoting substances is a meal, flour, meal-infusion or flour-infusion of beans (e.g. soybean, castor bean, jack beans or Lima beans), peanuts, cottonseed or linseed.  Such material advantageously constitutes about 0.5-2.5 per cent of the medium, which must also contain a nutrient salt, e.g. sodium chloride or sulphate (preferred) or a mixture of sodium chloride with magnesium chloride or with sodium sulphate, and a carbohydrate assimable by the organism, e.g. dextrose (preferred, advantageously about 0.5-3.0 per cent of the medium) or potato starch.  The antibiotic substance is present in both the liquid and the solids of the culture, and may be extracted from the latter with aqueous acid by the process of Specification 610,570. The culture liquid and the extract of the culture solids may be used as such or treated, separately or together, to obtain the antibiotic substance in a purified form.  Examples illustrating the various features of the invention are given.
Patent GB-202049-A (GB)
Title: Improvements relating to methods of drawing or illustration
IPC: B05C17/06
Filed: 1922-05-12
Abstract: 202,049. Mitchell, H. C. May 12, 1922. Stencils and stencilling.-In the method oi drawing or illustration in which a dry colour is applied to a surface exposed through the openings in a stencil by means of a rubber or pad, the colour is applied to the face of a stencil, or to a sheet of material which may be secured to the stencil, or to a sheet of material which may be stencil, or alternatively, the stencil or sheet may be formed of a material adapted to serve as a colour, e.g. lead foil. A number of colours may be applied in bands to the stencil or sheet. In order to minimize the application of colour to the face of the stencil during the transfer of the pad from the coloured part to the apertured part, the stencil may be formed of a material having a smooth face, and the colour applied to a sheet of different texture. The pad is preferably a piece of felt treated with a neutral oil, which serves to darken the colour applied.
Patent GB-750557-A (GB)
Title: Improvements relating to bearings
IPC: F16C33/12
Filed: 1954-05-10
Abstract: A lead base alloy consists of 98,5 per cent to 82 per cent lead, 1 per cent to 15 per cent tin and 0,5 per cent to 3 per cent copper. Preferably the alloy consists of 86 per cent lead, 12 per cent tin and 2 per cent copper.  An aluminium base backing consists of 1 per cent-10 per cent silicon, 0,25 per cent to 5 per cent cadmium and the remainder aluminium.  Preferably the silicon content is 3,5 per cent to 4 per cent and the cadmium content 0,75 to 1,40 per cent.
Patent GB-773715-A (GB)
Title: Improvements in electrical distribution boards
IPC: H02B1/04
Filed: 1955-05-10
Abstract: 773,715. Distribution fuse boards. HILFIKER, H., and SCHREIBER, A. May 10, 1955 [May 11, 1954], No. 13507/55. Class 38 (1). A distribution board 11 comprising threephase bus-bars R, S, T has a connection bar 17 on which both terminals 19R, 19S, 19T and switches 18R, 18S, 18T are mounted, the front casings and dimensions of the switches and terminals and their connection arrangements being identical so that they are interchangeable. Some of the switching and actuating mechanism of each switch is arranged in a rear part of the casing such as 18R<SP>1</SP>. Fuses 16R, 16S, 16T are either mounted on three separate connection bars 13, 14, 15 or side-by-side on one bar.
Patent GB-356104-A (GB)
IPC: B60L7/00
Filed: 1930-05-01
Abstract: 356,104. Control of D.C. motors; drum controllers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 1, 1930, No. 13508. Convention date, May 1, 1929. [Class 38 (iii).] Non-regenerative braking.-Rotation of the controller drum 9 from positions 1 to 6 causes the motor 12 to be connected for driving, whereas, rotation from positions 6 to 1 causes the motor to be connected in a rheostatic braking-circuit. This is effected by a device 8 operated by the controller handle and connected to the drum 9 by a lostmotion device. Initial forward movement of the handle causes the device 8 to prepare driving circuits for the motor and then to open switch 11 and close switch 10. Further movement of the handle then causes the drum 9 to rotate and exclude sections of the resistance 16 to 17. Slight backward movement of the handle moves the device 8 to cause opening of switch 10 so that no power circuit is broken on the device 8. The motor now coacts. Further backwards movement of the device 8 causes switch 11 to open, braking-circuits to be prepared and then switch 11 to close to complete these circuits. Continued backward movement of the handle causes the drum 9 to be returned to its initial position with exclusion of section of resistance 17 to 16 from the braking circuit. A separate resistance may be used for braking.
Patent GB-623858-A (GB)
Title: Improvements in or relating to combustion apparatus
IPC: F23R3/60
Filed: 1947-05-20
Abstract: 623,858. Generating combustion products under pressure. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and ASHWOOD, P. F. May 20, 1947, No. 13528. [Class 51 (i)] In order to minimise the length of casing accommodating the combustion chambers in a combustion system particularly for gas turbines, including such chambers in an annular duct, while still enabling the combustion chambers to be readily withdrawn, each chamber is made in interengaging sections, of which one is slidably supported in the duct and another is releasably fixed near one end, the sections being slidably separable, when the fixing referred to is released, so that they can be withdrawn one at a time through an aperture in the casing. In the form shown, the combustion chamber comprises a section 7 releasably fixed in the annular casing 3, 6 at 8 and a section 9 fitting slidably in one end of an outlet member 10 which is mounted at that end in a flanged aperture in an annular member 14 fixed in the casing ; the section 9 has limited longitudinal play between the tapered part of the member 10 and an abutment 11 on the section 7. To remove the chamber through an aperture, closed by a cover 5, in the outer wall 3 of the annular duct, the attachment 8 is released and the section 7 moved to the left sufficiently to clear the section 9 and allow the removal of the latter, after which the section 7 can be removed. Specification 620,343 is referred to.
Patent GB-611766-A (GB)
Title: A device for facilitating the greasing of bread tins, cake tins, pans, and other similar articles
IPC: A21B3/16
Filed: 1946-05-07
Abstract: 611,766. Baking-tin greasers. VANE, W. J. May 7, 1946, No. 13808. [Class 28 (i)] A baking-tin greaser comprises a shaped block B of felt &c. mounted on a stock or backing C provided with a handle D.
Patent GB-683938-A (GB)
Title: Improvements relating to projectiles, bombs, mines, and the like
IPC: F42C15/30
Filed: 1951-06-11
Abstract: 683,938. Fuzes. AKTIEBOLAGET BOFORS. June 11, 1951 [June 14, 1950], No. 13809/51. Class 9(i) A projectile, bomb, or mine has a battery and means whereby at a given pressure of a medium, such as gas developed in the projectile, the battery is connected to an electric circuit for operating the ignition device of a bursting charge. The drawing shows a cylindrical body whose ends 2, 3, are intended to be screwed respectively to the nose and body of a rocket. When the rocket is in flight the gases developed act on a disc 24 to arch it forwardly, the disc by means of a pin 21 and plunger 20 serving to move forwards a cylindrical member 4. The member 4, as shown bears against a flange 11 of a cylinder 11α whose forward end bears against the end wall of a housing 8, and the forward movement of the member 4 causes the flange to rupture at its thin annular part near the cylinder. The. rear end of the cylinder 11a, during this movement, breaks a partition wall of the member 4 and allows electrolyte 7 to pass around storage battery plates 9, and at the same time contact plates 13, 15 on the flange 11 meet fixed contacts 16, 17 on the housing 8 and complete the circuit from the battery to an ignition device for the explosive charge.
Patent GB-846677-A (GB)
Title: Process for the purification of vinylidene fluoride
IPC: C07C17/389
Filed: 1959-04-23
Abstract: Vinylidene fluoride is separated from its admixture with vinyl fluoride, the concentration of the latter in the mixture being below about 30 mole per cent, by passing the gaseous mixture through a synthetic alkali metal alumina silicate defined by a three-dimensional network with mutually connected intra-crystalline voids accessible through openings of at least 5  in diameter (a "molecular sieve"), the process being carried out below 80 DEG C. and at a pressure below 600 p.s.i.g.; vinyl fluoride is preferentially adsorbed.  Preferred molecular sieves have intra-crystalline voids of 10  and 13  diameter.ALSO:Molecular sieves of synthetic alkali metal alumina silicate of pore diameter at least 5  are used to separate gaseous mixtures of vinylidene fluoride and vinyl fluoride containing below about 30 mole per cent of vinyl fluoride, the process being carried out at below 60 DEG C. and below 600 p.s.i.g.  Vinyl fluoride (and acetylene if present) are preferentially adsorbed.
Patent GB-899458-A (GB)
Title: Improvements in or relating to a method of and means for applying a closure cover or cap to a jar or like container
IPC: B65D41/04
Filed: 1960-04-20
Abstract: 899,458. Applying container closures; container Closures. NOFER, P. April 20, 1960 [April 20, 1959; Feb. 1, 1960], No. 13845/60. Classes 125(2) and 125(3). A closure 1 for jars and like containers is formed from a thin, soft, substantially non- elastic sheet metal and includes a skirt having inwardly projecting ribs 4 which, when the closure is applied, are deformed where they abut peripheral projections 8 on the container neck. This deformation provides retaining points 9, 10 holding the closure against the projections 8. The ribs 4 may be of V-shaped or curved cross-section, Figs. 3 and 4, respectively (not shown). The container may be screw-threaded as shown, or have a peripheral bead at its top edge, Fig. 6 (not shown); an angular abutment ring may project from the container wall below the bead 1, Fig. 7 (not shown). The closure is fitted with a packing ring 3. Excess pressure of air in the container may escape past the deformed portions of the lid. An area or areas where the closure seal is weakened by one or more projections 20, Fig. 9, may be formed in the closure during its application to assist in this escape of air. Applying the closure. As shown in Fig. 10, a sealing head has a cylindrical member 23 movable in a housing 22 and carrying a flange 24 in which a disc 26 is movable against a spring 27 by means of a rod 25. The flange 24 is secured to a cup 28 of elastic sheet metal, slotted at 29, for gripping a cap. A rubber ring 34 is surrounded by a leaf spring 35 about which a securing ring 36 may be adjusted. As the cap is applied to a container it is subject to axial and then radial pressure, the mean diameter of the side wall being reduced by a combined drawing and pressing operation in which the ribs 4 are deformed. In order to form the projection(s) 20 the ring 34 may have one or more U-shaped recesses, Figs 11 and 12 (not shown).
Patent GB-697094-A (GB)
Title: Improvements in mills for curd-like substances, such as cheese curd
Inventor: KIDLEY ALICK GORDON
IPC: A01J25/06
Filed: 1950-06-02
Abstract: 697,094. Cheese mills. HIGHBRIDGE BACON CO., Ltd. Nov. 20, 1950 [June 2, 1950], No. 13887/50. Class 84 [Also in Groups II, XXIV and XXX] A mill for curd-like substances e.g. cheese curd comprises a supporting frame 10 carrying an electric motor 17, rotating beaters 14 driven thereby and a feed hopper 15 above the beaters, feed rollers 13 driven by the motor and located immediately below the hopper outlet and above the beaters, the axes of the feed rollers being parallel and in a common horizontal plane with the beaters rotating on axes parallel therewith and below, the hopper outlet being of narrow elongated form and the feed rollers extending for substantially the full length of the outlet, the height of. the hopper and the width of the outlet being such that an operator's hand cannot normally pass down through the outlet, the mill being supported on or adapted to be carried by a wheeled framework 10 whereby the mill can be wheeled to locate the beaters above a curd cooler or other receptacle for the milled substance into which it is discharged directly. As shown the two feed rollers 13, fluted longitudinally, have their axes parallel and in a common horizontal plane and the centre line of the outlet of the hopper 15, supported by readily releasable means on uprights 22 carried by a structure 12 mounted, on the wheeled frame 10, is immediately above the centre line between the rollers. The rollers travel in opposite directions such that the curd is drawn there between on to the beaters 14 spirally mounted on a shaft 16.
Patent GB-772211-A (GB)
Title: Improvements in or relating to magnetic tachometers
IPC: G01P3/495
Filed: 1955-05-13
Abstract: 772,211. Speedometers. SOC. PER AZIONI FRATELLI BORLETTI. May 13, 1955 [May 18, 1954], No. 13946/55. Class 106 (3). An eddy-current speedometer comprises a casing of two separable parts, one part 7, Fig. 2, carrying a sleeve 40, preferably a die pressing, capable of being axially adjusted as in Specification 750,838 and supporting a shaft 3 fixed to an insulating plate 2, e.g. of nylon carrying a permanent magnet 1 and a temperature compensating shunt 4, the plate 2 also having helical teeth 2<SP>1</SP> meshing with a pinion 5, and the other part consisting of a base-plate 14 and a cross member 15 mounted on two side plates 26, 27 and supporting the needle carrying shaft 13 on which is mounted a non-magnetic disc 17 and connected to one end of a return spring 20. The other end of the return spring is fixed to zero adjusting means 22. A stop 25 co-operates with a projection of the disc 17 in its zero position, the shaft 5 drives a shaft 12 in turn driving the common shaft of two gears 11, 10 the latter of which meshes with the total trip counters which are removably supported in inclined open slots in the side plates 26, 27.
Patent GB-401662-A (GB)
Title: Improvements in or relating to means for controlling the supply of fuel and/or air to internal-combustion engines
IPC: F02M1/10
Filed: 1932-05-14
Abstract: 401,662. Regulating ; spray carburetters. GROSE, F. J., 190, Hammersmith Road, and SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., Cricklewood, both in London. May 14, 1932, No. 13955. [Classes 7 (iii) and 7 (vi).] The quality of the mixture is regulated by automatic adjustment of the fuel jet or the air-strangler valve by a thermostatic device subject to the heat produced by the engine and combined with a pressure-responsive device actuated by induction-pipe pressure. Fig. 1 shows a thermostatic bellows 13 attached at one end to a frame 12 near the exhaust pipe 20, and at the other end to a second bellows 14 communicating by a pipe 27 with the induction pipe and connected to the other end of the frame 12. A stirrup 22 connects the inner end of both bellows to a bell crank 24 acting on the adjustable fuel jet 11. The arrangement enriches the mixture when the engine is cold, and also when the throttle is opened. Damage to the bellows due to excessive heat is prevented by apertured slides 28, 29 secured respectively to the frame 12 and stirrup 22, so that the apertures move out of coincidence as the temperature increases. A manual adjustment may consist of an eccentric 72 acting on the bell crank 24 through a spring 71. A lost-motion connection may be provided between the two bellows to ensure a quick thermostatic operation. In a modification, a single bellows arranged in a closed casing serves for both temperature and suction control, and is arranged in the cooling-water circuit. Fig. 5 shows another form having a bi-metallic thermostat 45 near the exhaust pipe 20, and a separate suction-actuated bellows 51. The thermostat consists of several strips, that nearest the exhaust pipe being fixed to a slipper 47, in which the remaining strips slide. The slipper 47 is connected by a spring link 48 to a lever 49, which also has a pin- and-slot connection 56 to the bellows 51. In another modification, the automatic control acts on the air-strangler valve, which also has a lost-motion connection to the accelerator pedal.
Patent GB-334273-A (GB)
Title: Improvements in and relating to stencil duplicating machines
IPC: B41L13/04
Filed: 1929-05-04
Abstract: 334,273. Creed, G. E., and Gestetner, Ltd., D. May 4, 1929. Stencils; stencil - printing apparatus. - In duplicating-machines of the type comprising a stencil secured to a flexible carrier travelling over inking-cylinders 5, 5<a> connected by driving bands or chains 6 and in which the stencil-fastening means is secured to links in the chains, the connection between the stencil-fastening means and the links is such as to permit the stencil heading to move relatively to the links about an axis parallel to the axes of the inking-cylinders. This relative movement takes up at least part of the slack formed in the stencil as its heading changes from a circular to a rectilinear path, and so reduces the degree of buckling of the stencil. As shown, the stencil-fastening means is similar to those described in Specifications 328,194, 328,195, and 328,275, and comprises an upper clamping- member 14 connected by a pivot shaft 13 to a lower member. Links 8 connecting the ends of the chain 6 are provided with lugs 9 in which are holes forming bearings for hinge pins 10 formed by extensions of the shaft 13, whereby the fastening-means may rock relatively to the links 8. Projections 30 on the lower clamping-member engage gaps in the lugs or alternatively between the lugs and the links 8, to limit the pivotal movement. To facilitate inserting the stencil-fastening means, a spring 12 is arranged on one pin 10 and a collar 11 is provided on the other so that, after inserting the first pin and compressing the spring, the other pin may be entered, whereupon the spring presses the fastening-means into correct position. The lugs 9 may also form lateral guides co-operating with flanges on the head of the usual silk carrier to assist in correctly positioning the carrier relatively to the inking-cylinders.
Patent GB-1392579-A (GB)
Title: Resonance vibrating screening machines
IPC: B07B1/42
Filed: 1973-03-22
Abstract: 1392579 Vibratory screens WESTFALISCHE MASCHINENBAU - GmbH 22 March 1973 [1 April 1972] 14013/73 Heading B2H A resonant vibrating screening machine comprises a screen box 1 supported, e.g. on springs 2, for vibration and having side walls 4 that are braced by an I-section girder 9 on the flanges 16 of which are mounted buffers 10, the girder being enclosed by a box-type counter-vibration mass 6 which has a drive located thereon and which is connected to the screen box by means of springs 8 attached to the inside of the side walls 4, the girder being disposed with its web 15 in a direction perpendicular to that of the springs 8 and having one of its flanges 16 welded to additional flanges 17 carrying springs 18, e.g. of rubber, to engage the counter-vibration mass 6. The screen box has a screening bottom 5. The drive- 7 may be an eccentric or a crank which excites the screen box 1 through connecting rods 12, drive springs 11 and cantilevers 19. The box vibrates ina . direction parallel to the line 14 passing through the centre of gravity 13. Buffers 20 cooperating with the buffers 10 are mounted on the mass 6.