baber/WOPTO huggingface dataset:
Patent GB-1018125-A (GB)
Title: Chemical products
Inventor: MULLINS JOHN DOLAN
IPC: A61K9/00
Filed: 1963-03-05
Abstract: A self-propelling medicament composition comprises a suspension of a solid, substantially anhydrous medicament in a substantially anhydrous liquid carrier consisting essentially of a mixture of a non-toxic propellant having a vapour pressure of from 15 to 70 p.s.i.g. at 70 DEG  F. and ethanol the medicament being substantially insoluble in the carrier and having a particle size from 0.5 to 10 microns and the ethanol being present in an amount of from 0.5% to 5% by weight of the composition. The medicament may be for example insulin, tri-iodothyronine or adrenaline; an anti-inflammatory steroid such as hydrocortisone, prednisolone or dexamethasone; an antibiotic such as penicillin neomycin polymixin, tetracycline, chlortetracycline or oxytetracycline; a broncho-dilator such as isoproterenol, phenisononone, epinephrine, phenylephrine or meterainol; an anti-nauseant such as cyclizine, meclizine, pipamazine, dimenhydrinate, or trimethobenzamide; an analgesic such as ergotamine; an antihistamine such as cyproheptadine; an antitussive such as noscapine, or mixtures thereof.  Two examples are given of mixtures of dexamethasone and isoproterenol and one example of a mixture of neomycin and polymixin.  The propellant may be a halogenated alkane or a mixture of such compounds.ALSO:A self propelling medicament composition comprises a suspension of a solid, substantially anhydrous medicament in a substantially anhydrous liquid carrier consisting essentially of a mixture of a non-toxic propellant having a vapour pressure of from 15 to 70p.s.i.g. at 70 DEG F and ethanol, the medicament being substantially insoluble in the carrier and having a particle size from 0.5 to 10 microns, and the ethanol being present in an amount of from 0.5% to 5% by weight of the composition.  The medicament may be for example insulin, tri-iodothyronine or adrenaline; an anti-inflammatory steroid such as hydrocortisone, prednisolone or dexamethasone; an antibiotic such as penicillin, neomycin, polymixin, tetracycline, chlortetracycline or oxytetracycline; a broncho-dilator such as isoproterenol, phenisonone, epinephrine, phenylephrine or metaraminol; an anti-nauseant such as cyclizine, meclizine, pipamazine, dimenhydrinate, or trimethobenzamide; an analgesic such as ergotamine; an antihistamine such as cyproheptadine; an antitussive such as noscapine, or mixtures thereof.  Two examples are given of mixtures of dexamethasone and isoproterenol and one example of a mixture of neomycin and polymixin.  The propellant may be a halogenated alkane or a mixture of such compounds.
Patent GB-381852-A (GB)
Title: Improvements in or relating to the production of labels suitable for use in hats, caps, and like head coverings
IPC: D06P5/00
Filed: 1932-03-24
Abstract: 381,852. Labels. BERNARD, B., 74, Banner Street, Golden Lane, London. March 24, 1932, No. 8822. Drawings to Specification. [Class 73.] A label for the inside of a hat &c. is made by printing on the back of a sheet of transparent, moisture and greaseproof material, such as oiled silk or gelatine, any desired representation in black and white, or in colours, and subsequently printing an opague background of a nature to display the representation.
Patent GB-726181-A (GB)
Title: Improvements in the drying of natural rubber coagulum
IPC: C08C1/02
Filed: 1949-04-01
Abstract: The drying of natural rubber coagulum is accelerated by adding to the latex prior to coagulation a small proportion of a protein precipitant or tanning agent as a dilute solution and after coagulation of the rubber, drying the coagulum in air or smoke at 50-65 DEG  C.  The precipitant or tanning agent may be formaldehyde, a salt of a heavy metal such as lead, chromium or zinc, or urea or a vegetable or synthetic tanning agent.
Patent GB-905594-A (GB)
Title: Improvements relating to swimming jackets
Inventor: BROWN WILLIAM HENRY
IPC: B63C9/115
Filed: 1960-03-14
Abstract: 905,594. Inflatable life-jackets. PRECISE PLASTICS (TOTTENHAM) Ltd. June 13, 1961 [March 14, 1960], No. 8914/60. Class 141. An inflatable swimming jacket is made from welded laminated polyvinyl-chloride sheet and consists of front sections 1, 2 and a back section 3 each having a plurality of inflatable interconnected pockets 4. Eyelets 7, 10 in stiffened edge strips receive adjustable lacing at the sides and toggle and loop fastenings at the centre opening.
Patent GB-204278-A (GB)
Title: Improvements in paper and like perforators
IPC: B26F1/36
Filed: 1923-03-29
Abstract: 204,278. Shannon, E. F. March 29, 1923. Reciprocating-punch machines.-In a perforator of the type having two sliding punches i pivoted at their upper ends to bearing rings j mounted on a revoluble bar e eccentrically pivoted between uprights d and operated by a handle h, each bearing ring j is made by shaping a flat metal blank to form a rim m<2> and an extended bearing surface m. The bearing-surface is made much longer than the thickness of the sheet in order to minimise wear of the bar e.
Patent GB-561334-A (GB)
Title: Production of an enzyme substance and lecithin from animal glands
IPC: A23J7/00
Filed: 1942-06-30
Abstract: For the extraction of erepsin and lecithin from glandular, intestinal and like matter, the material is treated with a water-miscible solvent or azeotropic mixture of solvents having a boiling point up to about 100 DEG  C., the quantity of solvent being such that the solvent concentration in the mixture is about 60-80 per cent so that the enzyme remains insoluble and the material is broken up, and concentration of solvent in the separated extract is then reduced to about 30-40 per cent to precipitate the lecithin.  The solid residue containing the enzyme is washed with strong solvent and dried at a low temperature not above 20 DEG  C. to remove most of the remaining water and solvent, after which the final drying may be at a higher temperature.  The precipitated lecithin may be purified by suspending in sodium chloride solution, straining the emulsion and precipitating by adding solvent to a concentration above 40 per cent.  Suitable solvents are acetone, methyl ethyl ketone and methyl and ethyl alcohols.  Specifications 561,204, [Group VI], and 561,333 are referred to.
Patent GB-949061-A (GB)
Title: A new or improved bearing unit
Inventor: ALDERTON HOWARD KENNETH
IPC: F16C29/02
Filed: 1959-03-16
Abstract: 949,061. Bearings ; toothed gearing. CAM GEARS Ltd. March 16, 1960 [March 16, 1959], No. 9015/59. Headings F2A and F2Q. A bearing unit for a steering mechanism has an open bearing surface 8 extending over not more than 180 degrees in cross-section and resilient material 7 to urge the bearing surface against the component it supports. A rackbar 3, Fig. 2, is urged by the resilient material 7 into mesh with a pinion 5 mounted on a steering-column 4. The material 7, having a projection 10, is locked thereby to a housing 9 and a screwed plug 11, Fig. 3, allows adjustment of the resilient loading. The bearing surface 8 may be formed on the material 7 or, alternatively, on an inner layer of gun-metal or nylon for example. The inner layer may be formed with locating flanges 8b and may be intercepted at 8a, thus allowing engagement of the material 7 with the rack-bar 3 to effect damping. A pair of diametrically-opposed units may be used to support a shaft.
Patent GB-590247-A (GB)
Title: Improvements in or relating to the manufacture of copolymers of styrene and acrylonitrile
IPC: C08F212/10
Filed: 1945-04-11
Abstract: A mixture of styrene and acrylonitrile containing 20-37.5 per cent by weight of acrylonitrile is polymerized in bulk or in emulsion.  The process in either case may be carried out by boiling under reflux. In bulk reaction, after refluxing, the viscous mass is heated to about 135 DEG  C. to solidify and is mechanically worked to remove volatile solvents.  In emulsion reaction, the mixture is emulsified in water with the addition of Ivory soap and potassium persulphate, boiled and the copolymer precipitated.  The resulting copolymers are soluble in acetone, chloroform, pyridine, dioxane and methyl ethyl ketone and swell in benzene, toluene and ether; and they may be compression or injection moulded.  Specifications 358,534 and 510,961 are referred to.
Patent GB-214434-A (GB)
Title: Improvements in pedestals or blocks and in wheels for roller bearings
IPC: B61F15/12
Filed: 1923-04-03
Abstract: 214,434. MiÚville, A. L. April 3, 1923. Roller bearings; thrust bearings.-A roller bearing for shafts, colliery corve axles, wheels, &c. comprises a smooth sleeve or tube 4, within which the rollers 6 run, associated directly with an unmachined or very roughly machined casting in two or more parts adapted to be secured together. In the pedestal bearing shown in Fig. 1, the steel sleeve 4 is gripped between the halves 2, 2 of the casting, which are secured together by bolts passing through lugs 3. Loose metal washers 5 at the ends of the sleeve serve, when the halves of the casting are tightened together to compress packing rings 7 against the shaft or axle. A washer 9 of soft metal or felt is compressed between the halves of the casting. In the form shown in Fig. 4, a cap 11 has a convex inner face to take the end thrust of the axle, one or more lens-shaped discs 13 being interposed. Alternatively, a thrust cap 20 on the axle may engage a loose thrust pad 21 in the cap, as shown in Fig. 9. Where the parts cannot be threaded on to the axle, a segment 17, Fig. 7, is removed from the sleeve 4 and the pedestal is similarly cut away at 18, so that these parts can be slipped on to the axle. The part 18 is then closed by a filling piece. The washers and packing rings are split, so as to be sprung over the axle. The gap in the sleeve 4 is arranged so that the sleeve presents a smooth surface at the line of maximum pressure, and it is prevented from displacement by interengaging surfaces 19. The application to vehicle wheels is also described.
Patent GB-792185-A (GB)
Title: Improvements in writing instruments particularly ball point pens
IPC: B43K24/08
Filed: 1956-03-23
Abstract: 792,185. Reservoir pens. WAGNER VERWALTUNGSGES, G. March 23, 1956 [March 25, 1955], No. 9095/56. Class 146(3) A writing instrument having a writing medium carrier,.e.g. a ball-point pen unit, displaceable in a barrel by pressing its writing point against a surface to retract or project the writing point within or from the barrel, is characterized by a locking mechanism in co-operation with a fixed abutment wherein the operative stroke of the mechanism is limited both on the projecting and retracting movements; by the abutment. As shown, a ball-point pen unit 6, Fig. 1, carries a tube 4 provided with a locking sleeve 3. Abutments 7 and 8 are spaced apart within a barrel part 2 secured to a part 1 having a compressible part 1<SP>1</SP> surrounding a sleeve 12 slidable in the part 1. The sleeve 3 has teeth 9 of uniform 'depth on its rear face and saw teeth 10 on its front face. In the writing position, the unit 6 is pressed forwardly by a spring 11, such that a space 13, Fig. 2, between the teeth 10 engages the abutment 7. When the writing point is pressed against a surface the unit 6, Fig. 1, is forced inwardly of the barrel until one of the teeth 9 engages the abutment 8, such that a bevel 14, Fig. 2, there on rotates the sleeve 3 in the direction of the arrow 15. Removal of downward pressure causes the spring 11, Fig. 1, to project the tube 4, such that the abutment 7 rotates the sleeve 3 further and engages a space 16, Fig. 2, shallower than the space 13, between the teeth 10 thereby holding the unit 6 in retracted position. In a modification, the tube 4, Fig. 4, has a sleeve 18 provided with a plain front face 19 and teeth 25 on its rear face. The sleeve 18 is urged forward into engagement with a stop 20 in the barrel, not shown, by a spring 23 engaging the rear end of the tube 4. Projections 24 on the rear end of the sleeve 18 carry teeth 25 and are spaced apart by long slots 27. A stop 21 projects from the tube 4, while a similar but shorter stop 22 projects from the inside of the barrel. As shown, the tube is held in projected position by interengagement of the stop 21 with a slot 27. When the writing point is pressed against the writing surface, the sleeve 18 engages the stop 22, while the tube 4 slides within the sleeve 18 and is rotated by a bevelled surface 28 engaging the stop 22, such that the stop 21 engages between the teeth 25 to hold the unit in retracted position. Further pressure of the writing point against the writing surface and release of such pressure causes the tube 4 and sleeve to return to their original position. An extension 30 of the tube 4 engages a blind bore 1 not shown, in the rear barrel portion, not shown, to limit the rearward movement of the tube 4. Alternatively, the extent to which the part 1<SP>1</SP>, Fig. 1, may be compressed may limit the rearward movement of the tube 4.
Patent GB-907390-A (GB)
Title: Differential gas supplying apparatus
Inventor: CUMMINS RICHARD DANIELS
IPC: A62B9/02
Filed: 1960-03-15
Abstract: 907,390. Respiratory appliances. FIREWEL CO. Inc. March 15, 1960, No. 9104/60. Class 81 (2). [Also in Group XXIX] Apparatus for supplying gas pressure to an airator has a diaphragmcontrolled supply regulator, means for maintaining a predetermined, minimum controlling gas pressure on the diaphragm and an injector in the gas delivery line to produce an aspirating effect on that side of the diaphragm which is in communication with the user. For control purposes the minimum pressure is maintained by a regulator 23 which comprises a chamber 26 enclosing an aneroid capsule which, beyond a predetermined low pressure, expands to close an outlet 36. At lower altitudes, the aneroid is compressed and gas, received from the supply through a choke tube 22, is vented to the cockpit through the outlet 36. A connection 52 is made between the regulator 23 and the chamber 48 in the demand regulator 41, so that oxygen is never supplied to the mask 10-and belly bladder 11 below this pressure. When the user inhales, the reduction in pressure is communicated through tube 84 to the lower chamber 46 to cause downward movement of the diaphragm and opening of the valve 70, whereupon gas passes out through tube 66 to the mask and bladder. An extractor device 78 is included in this connection to assist inhalation, but its effect may be varied by an adjustable by-pass valve 90. The stem 69 of the control valve is sealed by a flexible closure 73 so as to prevent the incoming gas from influencing the operation of the diaphragm. At higher altitudes, where the pressure is lower than that set by the regulator 23, the internal pressure, acting on a diaphragm 111, holds a valve 119 closed but, as the aircraft descends below the limiting altitude, ambient air pressure, through vent 122, lifts this diaphragm and any excess oxygen pressure in the breathing circuit is vented. A similar equipment, shown on the righthand half of the Figure, is used to apply pressure to the " suit capstans," which apply constricting pressure to the limbs of the aviator. This pressure is required to be at least four times greater than that supplied to the mask and, to achieve this, a diaphragm 138, enclosing a chamber 142 and of about five times the area of the control diaphragm 132, is spaced slightly above the latter, the intervening space 140 being vented to atmosphere at 141. Below the critical altitude atmospheric pressure in chamber 141 holds diaphragm 138 raised but, above this, diaphragm 138 bears with increasing pressure on the diaphragm 132, causing oxygen to be admitted to the suit capstans 12 until the desired pressure is attained. Release of pressure, as the aircraft descends, is effected through a diaphragm-controlled assembly 105a, similar to the device 105.
Patent GB-1373974-A (GB)
Title: Automatic grader
IPC: A24B3/16
Filed: 1972-02-29
Abstract: 1373974 Photo-electric sorting apparatus AMF Inc 29 Feb 1972 [20 May 1971] 9234/72 Heading G1A In sorting apparatus, particularly suitable for tobacco leaves, the leaves are arranged into single file streams before being propelled in a ballistic path above a coloured background plate 26 having a reference colour against which the leaves are compared by photo-electric means 28 which controls ejection means if the leaves are not of  the required colour. Leaves are conveyed on belt 10 and an adjustable proportion diverted by paddle wheel 12 from falling on to belt 14. The falling stream is divided into four streams by apparatus including rollers 90, 92 (two oppositely rotating rollers), baffles 96, 98, rollers 118-124 and baffles 100-104. Belt 22 conveys the leaves to the photo-electric sorting station. An air jet 30 is used to eject unacceptable leaves to reject conveyer 226 (or chute). The photo-electric sorting arrangement is described and claimed in Specification 1373975. The flow dividing means is described and claimed in Specification 1373977.
Patent GB-179771-A (GB)
Title: Improvements in or relating to electrical distribution fuse-boards fuse-boxes and the like
IPC: H01H85/20
Filed: 1921-03-29
Abstract: 179,771. Midland Electric Manufacturing Co., Ltd., Cox, W. G. H., and Sutherland, H. E. March 29, 1921. Fuse-boards. - Distribution fuse-boards and boxes having a series of fuses mounted upon carriers have provision to enable the carriers to be turned or partially turned in such a manner as to give access to the terminals and the busbar. As applied to an ironclad board sheet-metal carriers c, which may be as described in Specification 162,449, have side members d comprising trunnions g and slotted or perforated cranked ends d<1>. The trunnions engage upwardly directed slots f<2> in members f sliding upon rods e, preferably of square section, fixed to the base of the fuse-box. The carrier with its fuses can therefore be drawn forward and turned so that the upper or lower ends of the fuses are presented outwardly. In the rearmost position of the carrier the slots or perforations in the side members d take over screwed pins e<1> on the rods e where they may be secured by nuts k. The ends of the rods e may be connected by a bar m which may support the insulating partition or partitions n and carry turn buttons t retaining in position a strip u of insulating material as described in Specification 900/15.
Patent GB-395463-A (GB)
Title: Improvements relating to radial arm drilling machines
IPC: B23Q1/30
Filed: 1932-03-31
Abstract: 395,463. Drilling-machines. ARCHDALE & CO., Ltd., J. and JEWSBURY, J., Ledsam Street, Birmingham. March 31, 1932, No. 9257. [Class 83 (iii).] In a radial-arm drilling-machine of the kind in which the radial arm is moved vertically by an electric motor, centrifugally controlled mechanism is provided which, when the motor is started, first releases the clamping means for the arm and then clutches the motor to the raising and lowering mechanism. The radial arm c has a split boss d vertically adjustable on the rotatable pillar-sleeve b by means of a screw n and clamped to the sleeve by bolts g which are actuated by cams h acting on levers i attached to the bolts. The levers have heels i<2> rocking on projections g<2> on the boss d. The cams h are mounted on a shaft j which is rotated to the closing position by a spring l, link k<1> and lever k on the shaft. The spindle r of the electric motor q carries a pinion 7 engaging a gear s capable of being clutched by teeth u to a pinion v meshing with a gear w on the screw n. The centrifugal control is produced by balls 2, Fig. 1, acting on the inner bevelled surfaces of discs y, z, the latter being fixed on the motor spindle r whilst the former is slidable thereon and carries a sleeve x engaging one end of a lever 3 whose other end engages the clutch gear s. A second lever 4 is engaged by the sleeve x and is secured to a shaft 5, Fig. 2, connected by bevel gears 6 to the clamping shaft j. On starting the motor by a pushbutton the sleeve x is depressed, first rocking the shaft 5 and releasing the clamp against the action of the spring l and subsequently rocking the lever 3 to engage the clutch u, v and rotate the screw n for raising or lowering the arm c. On stoppage of the motor, the spring l again clamps the arm and returns the sleeve x and clutch u to the normal position shown in Fig. 1.
Patent GB-943004-A (GB)
Title: Constant speed electric motor system
IPC: H02K17/30
Filed: 1960-03-16
Abstract: 943,004. Automatic speed control. KOLLSMAN INSTRUMENT CORPORATION. March 16, 1960 [April 6,1959], No. 9259/60. Heading G3R. In a constant speed motor system the output shaft 18 of an electric motor 16 is coupled by means of a spiral torque spring 21 to an escapement mechanism which comprises a ratchet 25, an escapement member 26 and a balance wheel 30 and which is supported between plates 28, 29 rotatable about the shaft 18, an edge of the plate 29 bearing on a fixedly mounted pressure-responsive resistance cell 35 connected in circuit with a winding 39 of the motor 16. The motor torque normally presses the plate 29 against the cell 35. An increase in motor speed above the pre-set speed determined by the escapement rate results in a slight angular displacement of the plate assembly 28, 29 whereby less pressure is exerted on the cell 35. In this case the decrease in pressure increases cell resistance whereby the current in winding 39 is reduced so that the speed is correspondingly reduced. Conversely, should the motor output speed decrease,the resistance of cell 35 decreases with increasing pressure from plate 29 and the current in winding 39 increases to maintain the speed at the predetermined rate. In a modification (Figs. 5 and 6, not shown) two output shafts are coupled by gearing to the electric motor and an amplifier is connected in circuit between the pressureresponsive resistance cell and the motor winding.
Patent GB-635138-A (GB)
Title: Improvements in check valves
IPC: F16K15/02
Filed: 1947-04-08
Abstract: 635,138. Check valves. SOC. ANON. DES ATELIERS ET CHANTIERS DE LA LOIRE. April 8, 1947, No. 9311. Convention date, April 13, 1946. [Class 135] A check valve comprises a disc-shaped valve member 1 which controls the outlet from a convergent passage 2, and a co-axial solid buffer member 3 which is of flat shape and has a diameter several times larger than the disc so as to form with the seating surface 4 a divergent annular outlet passage 5. The buffer member has a cavity 6 to accommodate the disc when it is off its seat and the reduced inner end of this cavity may accommodate a spring.
Patent GB-1171546-A (GB)
Title: Tower Reactors
Inventor: BLOOD ALDEN EDWARD
IPC: B01D51/10
Filed: 1967-02-27
Abstract: 1,171,546. Catalytic reactor. EASTMAN KODAK CO. 27 Feb., 1967 [25 Feb., 1966], No. 9317/67. Headings B1F and B1X. A downward flow catalytic reactor Fig. 1 contains adjacent plates 1, la &c., with annular depressed sectors 18, apertures 24 and mating male and female parts 19, 23 which ensure that apertures 24 are staggered to create a spiral path in the downward flow of fluids. The upper part of the reactor may have a packing of silicon carbide chips, and coolant may be introduced from 13. The reactor may comprise steel lined internally with silica or glass, and quench chamber 11 and nozzle 13 may be made of titanium, zirconium or titanium palladium alloy to prevent corrosion from hydrogen iodide hydrate catalyst.