baber/WOPTO huggingface dataset:
Patent GB-648956-A (GB)
Title: Improvements relating to machines for filling receptacles with powder, paste or the like
IPC: B65B3/34
Filed: 1946-05-15
Abstract: 648,956. Feeding from hoppers. JACKSON & CROCKATT, Ltd., J. G., and GAIR, D. May 5, 1946, No. 14637. [Class 78 (i)] [Also in Group XVII] A machine for filling receptacles with paste or powder comprising at least one intermittently acting feed worm which forces the paste &c. through a nozzle, and blade means co-operating with the feed worm to positively pack the paste into close contact therewith is characterized in that the blade means is intermittently turned about an axis transverse to the axis of the feed worm in synchronism with the intermittent turning of the feed worm and in that the axes of the blade means and feed nozzle lie in parallel planes. In the machine described, two feed worms 10, the ends of which enter nozzles 11, are driven through a clutch from a mainshaft 25, and are packed with paste from a hopper 12 by paddles 15, the paste in the hopper being urged towards the paddles 15 by an agitating helix 13. The paddles 15 are driven in synchronism with the feed worms 10 from the mainshaft 25 by a mechanism comprising spur wheel 32, 33, worm 34 and a co-operating wheel 35 mounted on a shaft 36 carrying also a sprocket wheel 37 which is connected by a chain to a sprocket 38 upon the paddle shaft 17. The agitating helix 13 is also driven synchronously with the feed worms, the shaft 42 upon which it is mounted carrying a wheel 41 engaging the worm 34. Each paddle 15 comprises blades 16 whose edges 39 are curved to give a working clearance with the feed worms 10. To provide for intermittent rotation of the feed worms and dependent mechanisms, the clutch is periodically disengaged, its male part 20 being connected to a lever 21 rocked against the action of spring 27 by the engagement of followers 28, 29 on the lever with cams 26 carried by a wheel 22 driven from a worm 24 on the main shaft 25. The follower 29 is adjustable to vary the period of disengagement. Parts of the filling machine are constructed to allow ready dismemberment to facilitate cleaning.
Patent GB-528942-A (GB)
Title: Improvements relating to screw-down taps
IPC: F16K1/02
Filed: 1939-05-17
Abstract: 528,942. Valves. UNITED GAS INDUSTRIES, Ltd., and SIMPSON, S. May 17, 1939, No. 14781. [Class 135] A screw-down tap particularly adapted for use on lavatory basins has the tap body provided with a downwardly depending tubular part below that part of the body of the tap that in the position of use is exposed, the depending tubular part serving for the accommodation of the valve member and its seat and being adapted for securing the tap in position of use and for connection to the service pipe. The tubular valve member is held against rotation by a rib h<SP>2</SP> taking between ribs d<SP>5</SP> on the casing and is internally threaded to engage a screwed spindle a. This spindle has a collar held against the underside of a bonnet c screwed into the casing at a boss integral with the casing by a dished spring washer f housed in a recess in the operating handle. The valve member is fitted with a metal, compressed fibre or leather washer held in position by a nut b<SP>1</SP> and adapted to co-operate with a seat formed on the end of the inlet pipe or a union fitting secured to the lower end of the tubular part.
Patent GB-840430-A (GB)
Title: Water-soluble steroids and pharmaceutical compositions containing them
IPC: C07J75/00
Filed: 1957-05-09
Abstract: The invention comprises polycarboxylic acid esters of 3a -hydroxy-11,20-diketo-pregnane and pharmacologically acceptable salts thereof, together a process for their preparation by reacting the parent steroid with a polycarboxylic anhydride in the presence of an organic base, and if required reacting the acid ester produced with a base to form a salt.  In examples: (1) 3a -hydroxy - 11,20 - diketo - pregnane and succinic anhydride are refluxed in pyridine giving the 3-hemi-succinate, which (2) is reacted with aqueous sodium bicarbonate and the solution lyophilized yielding the corresponding sodium salt; (3) and (4) as in (2) using the appropriate bicarbonates to give the potassium and ammonium salts; (5) as in (1) using glutaric anhydride giving the 3-hemiglutarate, which (8) is converted to the ethanolamine salt; (6) as in (1) using maleic anhydride and treating the resulting mixture of 3-hemi-maleate and hemifumarate with KMnO4 in acetone to form the isomeric acid tartrates; (7) as in (1) using tricarballylic anhydride.ALSO:Pharmaceutical compositions useful as central nervous-system depressants comprise an acid ester of 3a -hydroxy-11,20-diketo-pregnane or a pharmacologically acceptable salt thereof, together with a suitable carrier.  Thus the compounds can be administered intravenously in aqueous alcohol or aqueous solutions containing glucose or sodium chloride, or orally in the form of tablets, elixirs or suspensions.  Specified esterifying acids are succinic, glutaric, tartaric, tricarballylic, and citric, preferred salts being those of sodium and ethanolamine.
Patent GB-852213-A (GB)
Title: Improvements relating to means for controlling the operation of spring-closed doors and other angularly-movable spring-loaded parts
IPC: E05F3/10
Filed: 1958-05-09
Abstract: 852,213. Door operating appliances. NEWMAN & SONS Ltd., W., and SHEAD, H. C. May 8, 1959 [May 9, 1958], No. 14847/58. Class 65(1). A spring door closer and fluid check device comprises a rotatable cam 4, which in the embodiment described is carried by the spindle 2 of a floor spring, and a slide member 5 loaded by springs 6 and provided with two cylinders 7 adapted to contain hydraulic fluid and fitted with spring loaded pistons 8 which are normally in engagement with opposite sides of the cam, each cylinder having fluid valve means which enables fluid to be drawn freely into the cylinder during outward movement of the piston but which permits only a controlled escape of fluid during the return movement. As shown fluid contained in the casing 1 enters the cylinders through plate valves 14 and escapes through restricted passages 15 controlled by regulating valves 13 (not shown). Each piston carries a roller 11 to engage the cam, and outward movement of the pistons is limited by stops 16. When the door is moved from its closed position the cam 4 acts on one or other of the pistons 8 so as to operate the slide member 5 to load the springs 6, and during the initial opening movement the other piston moves outwardly and remains in contact with the cam until halted by the stop 16. This piston checks the final stage of the return movement of the door as it is closed by the springs 6. It is stated that the invention may be used to control angularly movable parts other than doors.
Patent GB-1146507-A (GB)
Title: Improvements in or relating to safety devices for washing machines
IPC: D06F37/42
Filed: 1966-04-04
Abstract: 1,146,507. Machinery safety devices. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 4 April, 1966 [7 April, 1965], No. 14855/66. Heading F2J. [Also in Division H2] In a washing machine having a lid P giving access to a washing/drying drum driven by at least one electric motor 31, opening the lid actuates first and second switches 9, 14 which interrupt the motor current during the wash and spin-drying cycles respectively, actuation of the first switch 9 at the end of the wash cycle rendering the motor current interruption dependent on a switch 13 controlled by a stud 12 moving with the drum. As shown, motors 31, 21 drive the drum during the wash and spindrying cycles respectively, each motor having main windings 32, 33 (22, 23 in motor 21) and a phase-shifting starter circuit including an auxiliary winding 6 (4) and a capacitor 11 (16) controlled by a centrifugal switch 10 (15). To start the wash cycle, manual or programme unit actuated switches 7, 8 connect contacts 70, 71 and 80, 81 to energize the motor 31. At the end of the wash cycle, switch 8 is actuated to connect 80, 82 to interrupt the motor current. The switch 13 is controlled to connect contacts 130, 131 when the drum opening is opposite the lid P and connects 130, 132 when it is not. If the drum opening is not opposite the lid when the latter is opened, contacts 90, 92 then being connected, the motor 31 is energized via contacts 82, 132, 92 until the stud 12 actuates the switch 13 to bring the capacitor 11 in series with the windings 32, 33 to stop the drum rapidly with the lid opposite the drum opening. For the drying cycle, contacts 70, 72 and 80, 82 are connected, closure of the lid P connecting 140, 141 to start the motor 21. Stopping and positioning the drum occurs in the same way as in the wash cycle. Alternatively (Fig. 2, not shown), a single motor (40) drives the drum through reduction gearing (61) for washing and this gearing is uncoupled for drying.
Patent GB-202740-A (GB)
Title: Improvements in or relating to valves for pneumatic tyres
IPC: F16K15/20
Filed: 1922-05-26
Abstract: 202,740. Schrader's Son, Inc., A., and Dykes, W. U. May 26, 1922. Tyre valves.-A tyre valve of the type fitted with a self-contained valve unit adapted to be secured within the valve stem has a pear or cone shaped resilient valve member adapted to engage a valve seat on a tubular part secured within the part adapted to receive the inflator connection. In the form shown, the tapered seat f is formed on the end of a tubular member e provided with a conical resilient packing collar j adapted to be pressed on a corresponding shoulder on the casing by a screwed member k rotatably mounted on the member e. The valve cap n has a recess o adapted to engage projections m on the member k to screw it into or out of position. The members e and k may be formed integrally. The member k may be formed with a square projection or recess adapted to be engaged by corresponding parts on the valve cap or the member k may have a knurled manipulating flange. The pin of the valve g is swaged at p to prevent it falling from the member e. The lower end of the seat member may be extended and swaged in or fitted with a screwed plug or a cross pin to prevent the valve falling out. Specifications 15458/14, 17095/14, and 8029/15 are referred to.
Patent GB-673558-A (GB)
Title: Production of a difficultly soluble salt of benzylpenicillin with an organic base
IPC: C07D499/00
Filed: 1950-06-14
Abstract: A difficultly soluble salt of benzyl-penicillin with an organic base such as procaine, is prepared by reacting the organic base with the di-isopropyl etherate of benzylpenicillin in the presence of a common solvent in which the difficultly soluble salt is insoluble.  In the example, three volumes of di-isopropyl ether are added to one volume of an amyl acetate solution of impure penicillin and allowed to stand for 2 hours at 0 DEG  C.  The precipitated etherate is filtered off and dissolved in a mixture of ethyl alcohol and amyl acetate. Procaine dissolved in amyl acetate is added and the precipitated procaine benzyl penicillin filtered off.
Patent GB-544362-A (GB)
Title: Improvements in or relating to freight containers
IPC: B65D90/00
Filed: 1940-10-08
Abstract: 544,362. Vehicle doors. NATIONAL FITCH CORPORATION. Oct. 8, 1940, No. 15026. Convention date, Oct. 13, 1939. [Class 108 (i)] [Also in Group XXV] Hinged doors for vehicle bodies or containers that are demountable for transference from railway to highway trucks are adapted to be raised by means mounted on the floor frame to lock them in the closed position. As shown, a apir of end doors are provided each comprising a pair of panels 30, 50 and 32, 52 hinged together at 60 and to the end wall parts 15 at 42. Each panel comprises a pair of vertical edge frame members 35, 36, 55, 56 to the inner face of which plates 37, 57 are welded, the members 35, 55, 56 being of rail-section and the members 36 of angle-section. The panels comprise also bottom frame members 39 and upper angle plates 37. The passages between the several panels are shielded when closed by strips 120, 121 secured to the bars 36, 56 and that between the panels 30, 32 and the hinges 42 by the flanges of Z-section bars 20 secured to the walls 15. The plates 37, 57 are flush with the walls 15 in the closed position. The doors are adapted to be raised by the engagement of plungers 101 with fork members 95 fixed to the door-bars 39 the plungers being provided with levers 102 each having a helical boss engaging helical surfaces 105, 106 on a casing 100 in which the plunger slides and which is mounted on the floor frame 10. The plunger is thus lifted by turning the lever. When the doors are closed the upper edges abut on the flange 81 of a channel member secured to the upper wall part 16 and when raised these edges enter the channel and at the same time the fork-member 95 engages stirrup members 91 fixed to an angle-bar 90 on the floor frame thus locking the doors. The levers 102 may be locked in the raised position of the doors by a bar 110 pivoted at 108 to the casing 100 and retained by a seal 115.
Patent GB-1515104-A (GB)
Title: Nickel-plated golf club shaft made of fibrereinforced plastics
IPC: A63B102/32
Filed: 1977-04-12
Abstract: 1515104 Golf club shafts AIKOH CO Ltd 12 April 1977 [19 May 1976] 15079/77 Heading A6D A golf club has a fibre-reinforced shaft having a plating 2 of nickel or nickel alloy for improved wear. Fibres may be of glass, asbestos, carbon as thread, cloth, yarn or felt alone or blended. Epoxy, polyester or ABS resins or nylon may be used.
Patent GB-703909-A (GB)
Title: Improvements relating to driving connections for, and to, route, destination and display indicators
Inventor: THOMAS GORDON SINCLAIR
IPC: G09F11/24
Filed: 1950-06-16
Abstract: 703,909. Changing signs. STRAY, Ltd., D. A. Sept. 17, 1951 [June 16, 1950], No. 15119/51. Class 3(1) In a destination and information display indicator of the type in which two or more .separate roller blinds 17 are positioned in side-by-side relationship, each of two sets of rollers 14-16 and 14a-16a around which the ends of the respective blinds are wound being mounted coaxially for rotation about a common rotary driving shaft 6, 7 and each shaft passing through the bores of a set of rollers and being axially moved to make independent driving engagement with one blind roller at a time through pairs of co-operating elements 19, 20-22 one of each pair being associated with the driving shaft and the other with a roller the axial movement of the shafts being simultaneously effected by a preselector mechanism 1, each driven element of each pair 19, 20-22 is within the bore of and carried by a blind roller and one of the elements of each pair 19, 20-22, is depressable towards the shaft, or alternatively towards the roller by engagement with the other element, if the elements contact when the shaft is moved axially, the depressable element being returned by a spring 26. The two shafts 6, 7 are each mounted between a winding mechanism - 2 and the pre-selector mechanism 1 so that it can be moved axially and also rotated, and each carry three rollers 14, 15, 16 and 14a 15a, 16a respectively. The rollers are freely mounted on the shafts and respective pairs carry the indicator blind 17 between them. The shafts are arranged to be independently driven by the mechanism 2 each having a free-wheel or clutch arrangement to permit free rotation when it is not driven. The co-operating elements for driving the rollers each consists of an abutment 19 formed as a depression in the roller body which is engaged by a lever 20-22 on the shaft. The lever is pivoted in a slot in the shaft and is kept protruding from the shaft by the spring 26. The abutment on each roller and the corresponding lever are so positioned that for a given axial position of a shaft only one lever and abutment are in driving engagement. The shafts 6 or 7 are moved axially to drive any desired roller by means of the preselector mechanism 1. This consists of a shaft 11 which is rotated by a knob 12 and which is indexed in one of three positions by a spring-loaded plunger 31 engaging indents 29 in a collar 28. The shaft 11 carries two gear wheels 10, one of which engages a rack 9 on the shaft 6 and the other a similar rack on the shaft 7. These racks consist of a series of annular grooves in the shafts so that the rotation of the shafts are not interfered with. If during the axial movement of a shaft a lever 21 comes into contact with an abutment 19, the spring 26 allows the lever to retract into its slot to pass the abutment.
Patent GB-966911-A (GB)
Title: Improvements in or relating to the manufacture of low pressure mercury vapour fluorescent electric discharge lamps
Inventor: BLACKBURN ALAN PERCIVAL
IPC: H01J9/22
Filed: 1960-04-29
Abstract: <PICT:0966911/C4-C5/1> The manufacture of low-pressure mercury vapour fluorescent electric discharge lamps includes the steps of feeding the output of a hydro-cyclone separator 4, consisting of a water suspension of phosphor particles of sizes lying substantially wholly in a desired range, at a substantially constant rate to the container 13 of an envelope coating machine 14, coating the lamp envelopes 17, internally with the water suspension of phosphor particles from the container, and evaporating off the water, no intermediate drying of the phosphor taking place between the separator and the coating stage. The envelope coating machine 14 is a turret machine constructed in accordance with Specification 917,832.  The output of the separator 4 can be fed first to an intermediate container 11 where additional water and a water-soluble binder, e.g. ammonium polymethacrylate (Vulcastab) are added in controlled amounts through the valves 20, 30 for increasing the viscosity of the suspension. The water suspension of phosphor particles, e.g. alkaline earth halophosphate in a concentration of about 1.25% by weight initially fed to the separator 4 from the reservoir 1 can contain, in addition to particles of sizes lying within said range-e.g. 5-25 microns, a proportion of sizes exceeding 25 microns and another proportion of sizes less than 5 microns, and the separator 4 consists of a two-stage separator, having a first cyclone 5, as described in Specification 927,354, which separates the phosphor suspension into two fractions, one containing particles of sizes exceeding 25 microns and the other containing particles of sizes 25 microns and less, the latter fraction being fed to a second cyclone 6 which separates the suspension into two further fractions, one containing particles of sizes less than 5 microns and the other containing particles of sizes between 5 and 25 microns, the latter fraction being fed to the container 11.  The phosphor before being fed to the reservoir 1 can be milled in a rapidly vibrated milling vessel containing a multiplicity of generally cylindrical milling elements as described in Specification 966,832.
Patent GB-800406-A (GB)
Title: Improvements in the manufacture of two-piece capsules
IPC: B29C41/14
Filed: 1955-05-26
Abstract: 800,406. Moulding gelatine &c. capsules by dipping. OWEN, H. W. W. Aug. 27, 1956 [May 26, 1955], No. 15217/55. Class 87(2). [Also in Group VI] In a process of manufacturing a two-piece capsule from gelatine or like soluble material, a blank is made by dipping a former 1 into a bath of the material and withdrawing it therefrom so that a coating adheres to the former, the coating is stripped from the former while still wet but sufficiently set to withstand the stripping force, the open end of the thus formed cup-like blank is sealed, and the blank is caused to assume a taper over at least a large part of its length such that the internal diameter of the blank near one end is greater than its external diameter near the other end, and the blank is dried and cut so as to provide one of the two parts of the capsule. As shown, an oiled upwardly tapering former 1 suspended from a slide 3 which runs on suspension rails 4 fixed in an air-conditioned tunnel (not shown in Fig. 1) is dipped in a bath of molten gelatine, for a period sufficient to leave the necessary thickness of coating thereon. After a setting period, it is stripped from the former 1 to produce an open-ended blank 5 having a relatively thick-walled base 6 and a relatively thin-walled open upper end having an external diameter at the point 7 less than its internal diameter at a point 9 towards the thick-walled base 6. After stripping, the blanks 5 are stood in drying jigs and the mouths of the blanks are sealed at 12, preferably by the method described in Specification 723,428 [Group VI], air (or other gas if desired) being thus trapped in each blank 5. On drying the thinner wall portion 7 contracts more quickly, so that a slight increase in internal pressure is exerted on the thicker and more moist end 6 so that a tapered blank is naturally formed in addition to the taper intentionally produced by the tapered former 1, the taper being sufficient to permit the larger diameter end 6 cut off from one blank 5 to fit over the smaller diameter end of another blank after the seals 12 have been cut off. The residual ends 5a of the two parted blanks are normally returned to the melt, whilst the assembled capsule is allowed to complete its drying before being filled or sold empty.
Patent GB-1346001-A (GB)
Title: Machine tool slide on a supporting bed
IPC: B23Q11/12
Filed: 1972-03-30
Abstract: 1346001 Beds and frames SCHIESS AG 30 March 1972 [10 April 1971] 15243/72 Heading B3B [Also in Division F2] A machine tool comprises a slide or column 2 displaceable on a bed 1 by means of a rotationally drivable worm engaging a rack 13 fixed in the bed 1, the slide 2 being hydrostatically supported on the bed by grooves 19, 20, 21 facing surfaces 8, 9, 10 of the bed and being laterally guided by a rib in the slide which carries parts 17, 18 providing grooves 23, 24 for hydrostatic guiding relative to surfaces 14, 15 on the bed, a further groove 22 being provided in part 18 which is substantially coextensive with the length of the worm and which supplies pressure medium as a lubricant to bores 37 which are provided along the length of the rack 13 and which supply the lubricant to the flanks of the rack teeth as they engage the rack. The total area of a pair of grooves 23 is equal to the area of an oppositely placed groove 24. Throttle elements are provided in the various bores and passages supplying pressure medium to the hydrostatic bearing grooves and the rack to control the relative distribution of the pressure medium.
Patent GB-235015-A (GB)
Title: Improved manufacture of hexamethylenetetramine
IPC: C07D487/18
Filed: 1924-06-24
Abstract: Hexamethylenetetramine is prepared by the interaction of methylene chloride with aqueous ammonia at elevated temperatures and under pressure, the ammonia being present in at least 100 per cent excess of the proportion theoretically required.  Methylene chloride is heated for some hours at a temperature of 80-120 DEG  C. in an autoclave with a sufficient quantity of aqueous ammonia to give an excess of 300 or 400 per cent above the theoretical proportion.  Less ammonia may originally be present and fresh ammonia forced in from time to time to maintain the excess.  The solution of hexamethylenetetramine and ammonium chloride may be evaporated at ordinary or reduced pressure, with introduction of ammonia to prevent hydrolysis, and the hexamethylenetetramine separated by the aid of a solvent such as chloroform or carbon tetrachloride.  Alternatively, the process may be conducted to give a solution saturated with the products.  The hot solution is then cooled to crystallize out the ammonium chloride and ammonia introduced to precipitate the hexamethylenetetramine.  The mother liquor can be employed for treatment of further methylene chloride in the autoclave.  A flow sheet of the apparatus employed is given.  Specifications 195,602 and 234,192 are referred to.