baber/WOPTO huggingface dataset:
Patent GB-618085-A (GB)
Title: Improvements in the production of stretched artificial yarns and textile materials made therefrom
IPC: D01F2/28
Filed: 1946-10-17
Abstract: The amount of volatile solvent or swelling agent remaining in artificial yarns after their production is maintained substantially constant from the time they are wound up at the spinning frame to the time that they enter a stretching machine in which they are stretched while in a softened condition. Uniformity of stretching is thus ensured.  The process is particularly applicable to cellulose acetate yarns obtained by dry-spinning.  Stretching may be effected in the presence of wet steam.  As soon as the bobbins have been filled at the spinning frame, they may be transferred to containers which are then closed.  The bobbins are kept in the containers until they are required for the stretching operation.  The bobbins may then be removed but preferably they are left in the containers and the yarns are passed through narrow orifices in the containers as they are fed from the bobbins to the stretching machine.  The bobbins may be kept in a container consisting of a rectangular box provided with pegs for the bobbins and with a removable lid which can be closed tightly, e.g. by bolts and wing-nuts, to give a substantially air-tight seal. The box may be provided, in the lid or sides, with orifices preferably of cross-section equal to or slightly greater than that of the yarn and preferably in line with the axes of the pegs.  The orifices may be formed in small members which can be screwed into tapped holes in the side or lid of the box and which may be interchanged with members containing orifices of different size.  The container may be large enough to hold a complete reel of bobbins. After stretching, the yarns may be shrunk to improve the extensibility.  Cellulose ester yarns may be saponified.  The process may be applied to yarns of other cellulose esters or ethers or of vinyl copolymers, or of polyacrylonitrile.  Yarns consisting of single continuous filaments of large denier may be treated.
Patent GB-451472-A (GB)
Title: Process for the protection of cast iron and steel against oxidation at high temperatures
IPC: C23C28/02
Filed: 1935-11-09
Abstract: A protective case is formed on cast iron or steel by subjecting the metal to sand-blasting, coating with a thin layer of aluminium, e.g. by spraying, covering the aluminium layer with a very thin layer of a metal such as copper, mild steel, or rustless steel, and then subjecting the metal to heat to cause the aluminium to alloy with the base.  The thin layer of copper, mild steel, &c. prevents oxidation of the aluminium during the heating and subsequent cooling.  The heating may be effected in a furnace or when the article is in use. If desired, the thin layer of copper, mild steel, &c. may be subsequently removed, e.g. by sand-blasting.  The treatment of mechanical parts, furnace, boiler, and stove fittings, vats and troughs, and annealing boxes is referred to.
Patent GB-150665-A (GB)
Title: Process for the treatment of vegetable fibres
IPC: D06M15/15
Filed: 1919-12-12
Abstract: 150,665. Gillet et fils. Sept. 2, 1919, [Convention date]. Printing-processes.-Vegetable fibres of all kinds and in any stage of manufacture are, treated by fixing thereon the products of the hydrolysis of proteic substances as a preparation for the usual printing processes. The fibres, whether in the mass, or in the state of lap, cops, card-ends, twistings, yarns, or fabrics are treated with the liquid obtained by the action of strong acids, alkalis, or other hydrolyzing-agents on proteic substances to which oxidizing-agents may be added, and are then washed with water with, if desired, a preliminary washing with a dilute acid or alkali, or a saline solution. The fibres may finally he treated with formaldehyde, alone or with ammonia, or with phosphoric acid. In a modification of the process, the fibres are impregnated with a proteic solution, the deposit being treated, if desired, with formaldehyde and tannin. The fibres may then be dried and are subsequently treated with a hydrolyzing-agent, with or without the addition of an oxidizing-agent, and are finally washed with water, after the preliminary washing if desired. Casein, egg albumen, serum albumen, and gelatine are mentioned as suitable proteic substances, and nitric, sulphuric, hydrochloric, phosphoric, and formic acids, zinc chloride, and caustic soda are given as examples of suitable hydrolyzing- agents.
Patent GB-1516907-A (GB)
Title: Batteries
IPC: H01M50/673
Filed: 1976-07-27
Abstract: 1516907 Battery filler DAIMLER-BENZ AG 27 July 1976 [26 Aug 1975] 31275/76 Heading H1B An electric battery is supplied with a filler neck 12 the internal space of which defines a topping-up chamber 13 separated from a gassing space. 16 in the battery by a bottom wall 15. The bottom wall is provided with a monitoring opening (17) (Fig. 2, not shown) and further openings 19 through which liquid flows during topping up, all openings being so dimensioned that under the influence of the excess pressure generated in the space 16 and with continued topping up, a liquid seal is formed over both (17) and 19, and thereby preventing battery overfill. The opening (17), which is preferably arranged centrally to the axis of the filler neck 12 and is of a star-shaped slit-form construction, is resiliently distendable to allow introduction of a battery testing device (e.g., siphonic hydrometer).
Patent GB-1075819-A (GB)
Title: Improvements in devices for handling radio-active charges
Inventor: LORIOT PIERRE
IPC: G21F7/06
Filed: 1965-07-22
Abstract: 1,075,819. Handling radio-active material. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 22, 1965 [July 28, 1964], No. 31306/65. Heading B4Q. A pair of shielded cells 1, 2, shown in plan view in Fig. 2, are interconnected by a passage 4 which may be closed by a vertically-movable door 55 (Fig. 1, not shown). Each cell has a gantry 6 movable on rails 5 by chains 25 driven by a motor 8 and each gantry has tracks 10 on which a self-propelled hoist carriage 9 may move. The lower end of the door 55 carries tracks 53 whereby when the door is in its raised open position the tracks 10 may be aligned with the tracks 53 and the carriage 9 may move from the gantry 6 in one cell, through the passage 4 and on to the gantry in the other cell.
Patent GB-280969-A (GB)
Title: Improved process for the purification of lactic acid
IPC: C07C51/48
Filed: 1927-11-22
Abstract: 280,969. Klapproth, W. Nov. 22, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 23, 1927]. Lactic acid is purified by extraction with a solvent such as ether or a higher alcohol in the presence of a strong acid and excess of a salt of the strong acid; for instance sulphuric phosphoric, or oxalic acid and a salt of such acid. In an example 1000 parts of raw acid is treated with 80 parts of concentrated sulphuric acid and 120 parts dry sodium sulphate and is extracted with ether. The extract is washed with concentrated solution of a neutral or acid lactate, for instance of sodium, calcium or barium, and the lactic acid extract is then freed from ether which is used again. The lactic acid may be freed from colouring matter by decolorizing charcoal. If the raw acid is inferior and a very pure product is required, the acid obtained as above is mixed with 5-10 per cent of concentrated sulphuric acid and heated to 80-100‹ to destroy impurities. Sodium sulphate is then added and the extraction with ether is again effected as described above. A prior process is referred to in which the raw acid is first converted into a salt, for instance a calcium, zinc, or magnesium salt, the salt is recrystallized, tha acid liberated and freed from heavy metals such a; iron, lead and copper by precipitation treat. ments after which the sulphuric acid present is carefully neutralized and the lactic acid extracted with ether or other suitable agent.
Patent GB-418258-A (GB)
Title: Improvements in or relating to locking devices for boards or similar structural elements
IPC: B65D8/00
Filed: 1933-11-10
Abstract: 418,258. Barrels &c. AKTIEBOLAGET BATPATENT, Upsala, and ENGMAN, K. V., 45, B÷rjegatan, Upsala, both in Sweden. Nov. 10, 1933, No. 31349. [Class 21.] A wire, strip, &c., which is employed in securing together boards &c. to form a barrel, vat, churn, boat, pontoon, mast, wash-tub pipe, air-craft body &c. and which passes laterally through holes in the boards &c. which are arranged edge to edge, is secured and tensioned by arranging that the ends emerge at the inner or outer face of the structure, preferably at a recess therein and are there tensioned by a screw and nut, wedge, eccentric &c. The wire &c. may be secured to the nut, wedge, &c. by providing it with a threaded end or a loop. The thread may be provided on a brass &c. bolt 11, Fig. 6, having a conical hole 10 engaging over a conical thread 12 on the wire, the two being secured together by pressure. The ends may be disposed as shown in Figs. 2, 3, 4 and 5.
Patent GB-808340-A (GB)
Title: Pneumatic unloading equipment for pulverulent material
Inventor: PRUSSING CURT
IPC: B65G53/42
Filed: 1957-10-07
Abstract: 808,340. Pneumatic conveyers. POLYSIUS G.m.b.H. Oct. 7, 1957, No. 31359/57. Class 78 (1). Powdered material surrounding the inlet 2 of the suction pipe 1 is loosened by air supplied through the hollow drive-shaft 5 of a motor 3 attached to the pipe 1 and through the permeable walls of a disc-like casing 6 made of sintered metal fixed to the shaft. The periphery of the casing extends at least to the centre of the pipe 1 and may have serrations 8. Paddles 7 may be mounted on its top and bottom edges and it may be enclosed by a protective lattice cage. The bottom of the pipe 1 is inclined.
Patent GB-1392396-A (GB)
Title: Method of chip forming during cutting operations and tool for the same
IPC: B23B27/04
Filed: 1972-07-05
Abstract: 1392396 Cutting-tools SANDCO Ltd 5 July 1972 [7 July 1971] 31423/72 Headings B3K and B3B The tip of a milling cutter or parting-off tool has a groove 12 in each cutting edge so that the swarf 15 is formed with a crease 16, and it is said that the swarf therefore passes more easily through the tool.
Patent GB-1070410-A (GB)
Title: A mechanism for feeding pairs of articles into a machine
IPC: B65B35/46
Filed: 1964-08-04
Abstract: 1,070,410. Packaging apparatus; feeding articles; endless conveyers. E. SERAGNOLI, and A. SERAGNOLI, [trading as " G.D." SOCIETA IN ACCOMANDITA SEMPLICE DI ENZO SERAGNOLI e ARIOSTO SERAGNOLI]. Aug. 4, 1964 [Aug. 3, 1963], No. 31452/64. Headings B8A, B8C and B8S. Articles are fed in pairs to a machine, e.g. for wrapping, by means of an elevator (54), Fig. 5, fed by reciprocating fingers 46, 46<SP>1</SP>, Fig. 1, the articles being supplied from a hopper 30 down vibrated shoots 31, 31<SP>1</SP> to a pair of intermittently rotated discs 20, 20<SP>1</SP> having apertures 21, 21<SP>1</SP> respectively through which those articles not rejected are pushed downwards on to a conveyer belt 41 within channels 52, 52<SP>1</SP> where their presence is sensed by elements 43, 431. Should the flow of articles past one of the elements 43, 43<SP>1</SP> fail, a switch is opened to break the drive to the machine being fed and at the same time the supply of articles to the other channel 52 or 52<SP>1</SP> is stopped by means of a control tongue (42, 42<SP>1</SP>) until both channels are again supplied. Articles lying in the apertures 21, 21<SP>1</SP> on a stationary support (29), Fig. 8, pass under brushes 28, 28<SP>1</SP> and out into an unenclosed segment of travel of the discs 20, 20<SP>1</SP>, the brushes returning any unplaced articles towards the centre of the discs. At station I each aperture 21, 21<SP>1</SP> is halted over an opening (32) in the support (29), Figs. 2 and 4, normally closed by a shutter (35) which is removed as each aperture comes into line. Articles of correct size remain suspended on the projecting edges (33, 33A) of the opening (32), defective articles falling through. After being indexed through stations II-IV, the accepted articles are pushed down on to the belt 41 by resilient plungers (49, 49<SP>1</SP>), Fig. 3, passing through a second opening in the support (29). This opening is closed by the control tongue (42, 42<SP>1</SP>) if the element 43, 43<SP>1</SP> in the opposite channel 52, 52<SP>1</SP> senses that articles are absent, in which ease the articles remain in the discs 20, 20<SP>1</SP> and are carried round for a full circle. Pushers (46, 46<SP>1</SP>) are movable in a closed path, Fig. 7, to supply articles, held by stops 45, 45<SP>1</SP> at the end of the channels 52, 52<SP>1</SP>, to a position where they are carried to the wrapping machine by the elevator (54).
Patent GB-190344-A (GB)
Title: Selective electric signalling systems
IPC: H04Q5/22
Filed: 1921-11-24
Abstract: 190,344. Western Electric Co., Ltd., (Western Electric Co., Inc.). Nov. 24, 1921. Party-line systems and apparatus. - Electric signalling systems, such as train-despatching systems, for selectively signalling to a series of stations on a single line, are provided with an alternating- current source and a rectifier for supplying the signalling-current, and the rectifier, preferably a two-electrode thermionic valve, is rendered operative only when the signal impulses are being sent. The supply transformer 10 has two secondaries 11, 12 of which 12 serves for heating the filament 15 of the thermionic rectifier 14, and 11 sends direct current to the line 4, 5 through the rectifier 14, a smoothing-condenser 36 being connected as shown. Each code-wheel transmitter 17, 18 normally has its brush 24 out of contact with its rim, but when a code-wheel is operated, the brush 24 makes contact with the wheel and energizes the relays 16, 20, one for closing the filament circuit of the rectifier and the other for connecting the rectifier output terminals to the line 4, 5. As each tooth passes under the brush, it closes contacts 24, 25, energizes relay 19 and reverses the line connections. When the code sequence is finished. the brush 24 again breaks contact with the wheel and so renders the rectifier ineffective and disconnects the line. Sparking at the contacts 24, 25 is prevented by a resistance 27 and condenser 28 in shunt. At the stations B, C along the line, selectors 6 are arranged across the line in series with choke coils 7, 8, each selector being responsive to a different code sequence. At the central station, telephone apparatus 35 is connected across the line, and thumping of the receiver during the sending of signal impulses is prevented by the provision in the line of series inductances 29, and shunt condensers 33. The rectifying-valve 14 may be replaced by two valves connected in series or in parallel and arranged for full-wave or half-wave rectification. A single valve having a central filament and two oppositely-disposed anodes may be employed. The anode of the rectifier may be of volatizable material, such as mercury.
Patent GB-620778-A (GB)
Title: Manufacture of salts of acylated sulphonamides
Filed: 1945-10-24
Abstract: Salts of acylated sulphonamides of the formula R1SO2NHCOR2 (where R1 is an araliphatic or aromatic radical which may be unsubstituted or substituted by non-saltforming groups, and R2 is an aliphatic, alicyclic, araliphatic, aromatic or heterocyclic radical) are prepared by treating them with aliphatic or heterocyclic amines which may contain hydroxyl groups.  The preparation may be carried out in alcoholic or aqueous medium and the salt separated by filtering or by evaporating the solvent.  In examples: (1) N-(a -naphthoyl)-b -naphthalene sulphonamide in methyl alcohol is mixed with monoethanolamine in methyl alcohol and the solution evaporated to dryness; (2) N-(a -naphthoyl)-2,3,5,6-tetramethylbenzene sulphonamide in ethyl alcohol is mixed with a solution of ethylenediamine and the solution obtained is evaporated; and (3) N-(21,51-dichlorobenzoyl) - 4 - methylbenzene sulphonamide in methyl alcohol is mixed with morpholine and the solution evaporated.  Other amines specified are dimethyl-, diethyl-, and trimethyl-amines, di- and tri-ethanolamines, as.-N-dimethyl-ethylenediamine, as.-N-diethylethylenediamine, piperidine, morpholinoethyl amine and piperidinoethyl amine.  Many other acylated sulphonamides for use in the invention are specified, and also many examples of the radicals R1 and R2 are given.ALSO:Salts of acylated sulphonamides of the formula R1SO2NHCOR2 (where R1 is an araliphatic or aromatic radical which may be unsubstituted or substituted by non-salt-forming groups and R2 is an aliphatic, alicyclic, araliphatic, aromatic or heterocyclic radical) are employed as disinfectants either alone or together with phenols, alcohols, chloramine compounds, quaternary ammonium compounds or soaps.  The Provisional Specification describes also the use of the free suphonamides instead of their salts.
Patent GB-845675-A (GB)
Title: Bearing structure
Inventor: WISE RALPH HARVEY
IPC: A47H15/02
Filed: 1957-10-10
Abstract: 845,675. Rectilinear - motion bearings. ANDERSON CO. Oct. 10, 1957, No. 31706/57. Class 12 (1). A rectilinear-motion bearing for a shaft 12 comprises an outer casing 10 in which channel-shaped members 13, 14 are located, the members 13, 14 carrying rollers 17 which are adapted to engage the shaft 12. The ends of the rollers 17 are formed with rounded trunnions 17a which are received in dimples in the members 13, 14. Two diametrically opposed rollers 17 are mounted adjacent one end of the casing 10 and the other two rollers 17 are mounted adjacent the other end of the casing. The shaft 12 has axially-extending grooves 12a which are engaged by the toroidalshaped surfaces 17b of the rollers 17. In a modification, rollers 22, Fig. 6, are of concave curvature for close-fitting rolling engagement with a shaft 23 of circular cross-section. In a further modification, the rollers are cylindrical.
Patent GB-929437-A (GB)
Title: Improvements relating to rotary ironing machines
IPC: D06F65/06
Filed: 1960-09-14
Abstract: 929,437. Ironing-machines. E. G. OPPERMAN. Sept. 13, 1961 [Sept. 14, 1960], No. 31722/60. Class 138 (2). [Also in Group XXIV] In an ironing-machine a clutch 31 couples a motor 3 to mechanism for moving a heated shoe 9 into and out of engagement with a roller 1 driven by the same motor 3, and means are provided for switching the motor on and off which also automatically control the clutch. The shoe is carried by an arm 11 mounted on a shaft 12 which is supported by a bracket 4 and rotated by toggle mechanism 15, 16 acting upon a spring-loaded arm 19 and a lever 21, 22 attached to the shaft, the arm 19 having pivots at 18, 19a. The toggle mechanism is similarly loaded by a spring 24 and has a disc 25 pivoted at 24 which engages with a cam or eccentric 30. Rotation of the cam, or movement of a handoperated lever 28 from the position shown, moves the shoe on to the roller against the action of a counterpoise spring 21a attached to the arm 21. The cam 30 is driven by the motor 3 through gearing 7, 8 (Fig. 1) and the clutch 31, details of which are illustrated in Figs. 5, 6, 7 (not shown). A lug 47 (Fig. 3) on a rockable member 42 which rotates with and actuates the clutch, engages with a part 48 on a rocker 50 pivoted at 51 on framework 4a attached to the bracket 4. The rocker 50 is moved by an inflatable capsule in a chamber 53 acting on a plunger 54 and a part of the rocker 55, the capsule being coupled by a flexible tube 57 to a footoperated bulb. The rocker is loaded by a spring 58 to restore it to the position shown. The part 48 has a pivot 61 and actuates a plunger 62 of a switch 52 which is in the circuit of the motor 3 and is open when the-part 48 is depressed by the lug 47. When the rocker 50 is in the position shown (Fig. 3) the motor is stationary and the clutch is disengaged. When the foot-operated bulb is compressed the part 48 is released from engagement with the lug 47 and the motor 3 is switched on, causing the roller 1 to rotate; release of the lug 47 also engages the clutch and causes the cam 30 to rotate as well. A half revolution of the cam brings the shoe 9 into engagement with the roller 1 and the lug 47 into contact with a part 56 of the rocker 50, thereby causing the clutch to disengage whilst the shoe is left in contact with the roller, which continues to rotate. When the foot-operated bulb is released the cam turns through a further halfrevolution, causing the shoe to retract from the roller and the motor to be switched off. The cam 30 is prevented from over-running by a brake shoe 63 acting upon a part of the clutch, the shoe being pivoted at 64 and loaded by a spring 65. The lever 28 can be used to free the shoe from the roller at any time in the cycle of operations. A thermostatic device 10 is provided to control the temperature of the shoe which is maintained by electric means.
Patent GB-872992-A (GB)
Title: Hull structure for freighters
IPC: B63B3/00
Filed: 1957-10-10
Abstract: 872,992. Cargo vessels. PRAN, N. B. Oct. 10, 1957 [Oct. 10, 1956], No. 31744/57. Drawings to Specification. Class 113. To improve the trimming of a freighter with full homogeneous load, the hull is shaped so that the height of the deckline above the keel and thus the height the hold space increases towards the stern so that the freighter will float with an even keel when fully loaded with homogeneous cargo of such specific gravity that the midship draft corresponding to full load is attained. As described, the height of the deck and the draught with respect to the design load line increase towards the stern.
Patent GB-1111195-A (GB)
Title: Improvements in convergent-divergent plug nozzle
IPC: F02K1/12
Filed: 1966-07-15
Abstract: 1,111,195. Jet propulsion nozzles. GENERAL ELECTRIC CO. July 15, 1966 [Dec.8, 1965], No.31827/66. Heading F1J. The invention relates to an annular convergentdivergent nozzle for a jet engine comprising a duct within which is disposed a central plug so as to define a convergent-divergent gas flow duct. Flap means are pivotally mounted radially outwardly of the throat so as to form the divergent nozzle portion, the flap members being freely mounted so that they take up a position in dependence on the pressure difference thereacross. In a first embodiment as applied to a gas turbine jet engine comprising an exhaust gas flow duct 14 and an air flow duct 17, the nozzle comprises a central plug member 20 having a double conical surface 36. A series of adjustable flap members 22 are mounted at the downstream end of the jet pipe and define with the plug member an annular convergent duct and an annular throat 28, the flap members 22 being movable by means of an actuator 26. The annular divergent portion is provided by a series of flap members 32 which are pivotally mounted at their downstream ends 34 to a further series of flap members 30 which are pivotally mounted at their upstream ends 31 to the outer wall 18 of the air flow duct 17. The flap members 32 and 30 are freely mounted although the flaps 32 are connected by links 44 to the flaps 22 so as to maintain an annular air flow passage 42 therebetween. The flap members 30, 32 are thus free to take up positions dependent on the pressures prevailing within the nozzle and externally thereof, Fig. 2 being the position taken up during non-reheat or subsonic operation while Fig. 3 is that taken up during reheat, supersonic operation. In Fig. 4 the central plug member may be adjusted so as to vary the diameter thereof, as indicated at 50. The outer wall 48 comprises a frusto-conical portion 54 which together with the plug member defines the nozzle throat. At the downstream end of the frusto-conical portion 54 a series of flap members 56 are freely mounted at 58 and take up position dependent on the pressure difference thereacross.