baber/WOPTO huggingface dataset:
Patent GB-1012680-A (GB)
Title: Apparatus for the treatment of elongated generally rod-like articles
Inventor: HEBARD HUGH CHARLES
IPC: B23K35/40
Filed: 1961-01-20
Abstract: 1,012,680. Conveyers. BRITISH OXYGEN CO. Ltd. Jan. 22, 1962 [Jan. 20, 1961], No. 2489/61. Heading B8A. [Also in Division F4] Welding rods coated with flux for drying arrive randomly spaced on an endless conveyer 11 and are fed singly into the compartments of a second endless conveyer 14 by a worm device 12 engaging the ends of the rods. Co-operating endless belts 15, 16 feed the rods into compartments on trays 17 carried on a closed path by a sequence of endless conveyers. After being loaded while moving horizontally at a relatively high speed the trays 17 swing into a vertical position about projecting bars 51, the rear of the tray being guided by a skid plate 20. The trays are then transferred (see Fig. 4) from the fast conveyer 19 to a relatively slower conveyer 23 by a decelerating device comprising a claw 50 carried by a slider 53 driven by a crank 56 and arm 57. When the crank 56 is at topdead-centre and the velocity of the slider 53 is a maximum a cam 54 depresses a slotted member 59, which carries the slider 53, about pivot points 63, so that the claw 50 engages the projecting bar 51 of one of the trays 17. The crank 56 has uniform angular velocity so that as it rotates the slider 53 decelerates till, at about 80 degrees from top-dead-centre (Fig. 5, not shown), the slider is moving at the same speed as the slower conveyer 23. After passing through the oven 24 the trays are accelerated by a similar device used in reverse, the rear ends of the trays are raised by a second skid plate 27 and the rods unloaded at position 28, the trays being returned for reloading with rods via conveyers 26, 33.
Patent GB-799501-A (GB)
Title: Separation of ketals
Filed: 1957-01-23
Abstract: Lower ketals are recovered from mixtures containing water, a primary alkanol having 1 to 3 carbon atoms, an alkanone having not more than 2 carbon atoms in either of its alkyl radicals and the corresponding lower ketal in an amount greater than 5 per cent by weight, by a process comprising contacting the mixture with one or more portions of an aqueous solution containing 10-30 per cent by weight of sodium hydroxide or potassium hydroxide, or a mixture of both, in amounts such that the volume ratio of the total hydroxide solution to the ketal-containing mixture is in the range from 1/2 to 20 to extract the major part of the other constituents from the ketal and recovering the ketal.  The process may be effected batchwise, preferably in a multi-stage contact extraction or continuously; ordinary temperatures are normally used.  The recovered ketal may be further purified by vacuum distillation or by drying and then distilling under atmospheric pressure.  In typical examples: (1) 80 gm. of a mixture of 73.8 parts methanol, 9.8 parts acetone, 14 parts of 2,2-dimethoxy propane and 2.4 parts of water are agitated with 525 gm. of 15 per cent sodium hydroxide solution and thereafter an 89 per cent pure ketal layer is separated; (3) a similar ketal mixture comprising ethanol, acetone, water and 22.4 per cent of 2,2-diethoxy propane is treated as in (1); (4) an 11.3 per cent 2,2-dimethoxy propane mixture analogous to (1) is fed continuously up a column counter-current to a 16.7 per cent caustic soda solution and a 97 per cent pure ketal is recovered.  Specification 799,502 is referred to.
Patent GB-1134282-A (GB)
Title: 2,4-disubstituted carbohydrazides
IPC: D06M15/423
Filed: 1967-01-17
Abstract: 1,134,282. 2,4-Disubstituted carbohydrazides. OLIN MATHIESON CHEMICAL CORP. 17 Jan., 1967 [2 March, 1966], No. 2504/67. Heading C2C. [Also in Division A5] Novel 2,4-disubstituted carbohydrazides of the formula where R is alkyl, aryl or substituted aryl or the R groups taken together represent an alkylene moiety, are prepared (a) by reacting phosgene with an N-monosubstituted hydrazone at a temperature in the range - 50‹ C. to 10‹ C. and reacting the resulting N-chlorocarbonyl-N-monosubstituted hydrazone with a monosubstituted hydrazine at a temperature to 10‹ C. to 100‹ C., hydrolysing the resulting 2,4-disubstituted carbohydrazine monoazine in acidic medium and neutralizing the salt obtained; or (b) by reacting phosgene with either an N-mono substituted hydrazone or an N,N<SP>1</SP>-di-substituted α - # - dihydrazino alkane bis (azine) at a temperature in the range of 10‹ C. to 100‹ C., hydrolysing the resulting 2,4-disubstituted carbohydrazide bis (azine) and neutralizing the salt obtained. The compounds are useful as pesticides and herbicides, as crease-proofing agents in cellulosic fibres and fabrics, and as chain extending agents in the preparation of long chain polyurethanes. They may be reacted with formaldehyde under alkaline conditions whereby the terminal hydrogen atoms are substituted by -CH 2 OH groups.
Patent GB-138343-A (GB)
Title: Improvements in irrigation systems and in apparatus for use in connection therewith
IPC: A01G25/00
Filed: 1920-01-27
Abstract: 138,343. Krause, W. Aug. 13, 1917, [Convention date]. Addition to 138,339. Crop sprinklers.-In order to minimize the time required in transporting the sprinkler pipes described in the parent Specification, they are provided with legs at each end and quickly-detachable couplings. In the form shown in Fig. 6, a pipe 28 butts against a pipe 26, being supported on an arm 30 by means of a claw 29, and the legs 25, 27 being made unequal for use on inclined ground. In Fig. 9 is shown a pipe discon. nectible by rotation by means of a handle 42 for use in connexion with a claw coupling for example. To prevent the adjacent pipe from rotating, locking means are provided consisting of a bolt 46 adapted to engage the top of the support 40. A coupling for use on ground sloping in a longitudinal direction consists of a flexible tube 49, Fig. 10, which overlaps the pipe 48 and an angle-iron connected to a band 50 on the tube 49 by bolts 51, 52 and to the pipe by a bolt 59. The vertical part 54 of the angle-iron passes through a slot 55 in a ring 56. The slots 53, 58 allow of angular and longitudinal movement respectively.
Patent GB-368922-A (GB)
Title: Improvements in or relating to closures for milk churns
IPC: B65D45/34
Filed: 1931-01-26
Abstract: 368,922. Closures for milk churns. CAIRNS, J. B., Brimpsfield Park, Gloucester. Jan. 26, 1931, No. 2566. [Class 125 (iii).] A milk churn is fitted with a closure of a type hitherto known for use on bottles and consisting of a lid with a resilient skirt which is contracted on the mouth of the churn by a cam lever fastened to the ends of a wire ring passing through said skirt. The wire ring 3 is connected to the skirt 2 through springs 8 housed in chambers in the skirt. The closure may have an annular bead 9 engaging with a groove on the lip of the churn 7. The lid may consist of two discs 10, 11 enclosing an annular resilient washer 12.
Patent GB-691589-A (GB)
Title: Improvement in slotted waveguide antenna array
IPC: H01Q21/00
Filed: 1952-01-31
Abstract: 691,589. Aerials; aerial coupling arrangements. MARTIN CO., G. L. Jan. 31, 1952 [May 1, 1951], No. 2603/52. Classes 40 (v) and 40 (vii). A slotted wave-guide aerial array comprises a plurality of longitudinal slots 3 spaced along the narrow wall of a rectangular wave-guide 2, the centre - to - centre spacings of the slots being equal to one spacewavelength at the operating frequency and the guide including a longitudinally - extending block 17 of dielectric material, e.g. polystyrene, which is so dimensioned that the wavelength in the guide at the operating frequency is the same as that in free space. The guide is fed from one end by energy applied thereto by a coaxial transmission line 10, the other end of the guide being closed by a short-circuiting element 5 which is spaced three-quarters of a wavelength beyond the final slot. It will be seen that the slots, each of which is a half-wavelength long, all radiate in phase, thus resulting in a beam which is narrow in the vertical plane but which is broad in the horizontal plane. In order to excite the wave-guide symmetrically from the asymmetrically energized coaxial line 10, the line is terminated by a balance converter constructed by making two quarter-wavelength slits 12 in the outer conductor of the line and connecting the inner conductor to one of the portions of the outer conductor thus formed at its extreme end, as shown at 14, Fig. 2. Further metal blocks 7 attached to the broad faces of the guide one half wavelength below the first slot provide an impedance-matching  transformer for coupling the line to the waveguide. The vertical array thus formed may, on account of its narrowness, be fitted in an aerofoil of an aircraft.
Patent GB-304788-A (GB)
Title: Improvements in or relating to machines for printing from stencils
IPC: B41L13/04
Filed: 1929-01-25
Abstract: 304,788. Beauregard, E. Heuze-. Jan. 27, 1928, [Convention date]. Delivery apparatus. - Sheets printed in a stencil duplicator are guided by a curved plate 45, Fig. 1, on to a series of endless threads 22, which deliver them into a receiver 58. The threads 22 pass over grooved rollers 23, 24, the roller 23 being rotated by a chain 27 driven from a sprocket 29 rotated by the chain 10. A blade may be provided for stripping the printed sheet off the apron when it tends to adhere thereto. A collar is fixed on each end of the roller 23 to support the edges of the sheets and so bend them inwardly that, as the sheets are delivered, their edges do not scrape against the sheets already in the receiver. The plate 45 is connected by a rod 47, Fig. 5, to a lever 48 for tripping an impression roller 31 so that when a crank 53 is turned to raise the roller 31, the plate 45 is turned about a pivot 46 into the position shown.
Patent GB-926162-A (GB)
Title: Improvements in or relating to the preservation of rubber latices
IPC: C08K5/15
Filed: 1961-01-23
Abstract: Natural rubber latex is preserved by the addition to the field latex or the concentrate of at least 0,05% by volume of ethylene oxide. Ammonia may also be added but is not essential.  To improve the mechanical stability a small amount of surface active agent such as ammonium laurate or oleate may be added.
Patent GB-976213-A (GB)
Title: Natural and synthetic rubber latices
Inventor: BENNETT DONALD ALFRED
IPC: C08J3/215
Filed: 1961-01-23
Abstract: The particle size of a latex of natural or synthetic rubber is increased by mixing the latex with a slurry of finely divided reinforcing agent and passing the blend through a constriction at a pressure of greater than 1,000 p.s.i.g. Reinforcing agents specified are polystyrene and carbon black.  The products may be made into a foam or gelled and vulcanized.  Specification 976,212 is referred to.
Patent GB-327489-A (GB)
Title: Improvements in or relating to hydraulic pump mechanisms
IPC: F04F7/02
Filed: 1929-01-26
Abstract: 327,489. Tonks, G. Jan. 26, 1929. Addition to 305,829. Eccentric and lever-actuated pumps; stroke, varying.-In order to prevent jarring of the mechanism described in the parent Specification, the auxiliary control ram is arranged in a separate cylinder 4 which is connected with the pressure side of the pump by a pipe 7 containing an adjustable check valve 8 so that a sudden fall of the ram is prevented. In order to prevent oscillation of the linkage at or near maximum pressure, the stroke-control lever 10 is free to move without spring control to a limiting position determined by a stop 21 which is only withdrawn (to permit minimum stroke) by the action of an accumulator ram 17, as it rises to its highest position, through levers 18, 20. The accumulator 17 is put into communication with the pipe line by the opening of a valve (not shown), which opening is effected by a lever 13 connected to a rod 12 carrying an adjustable stop 12a adapted to be raised by a sleeve 10<a> on the control lever 10.
Patent GB-814912-A (GB)
Title: Method and machine for the production of packed coils of wire and the like
IPC: B65B25/24
Filed: 1957-01-25
Abstract: 814,912. Coiling and wrapping wire. GEOFFROY-DELORE S. A. Jan. 25, 1957 [May 30, 1956], No. 2773/57. Class 94(1). In a machine for coiling and wrapping wire, the wire 1, Fig. 1, is fed from a supply container 2 by a grooved pulley 3 co-operating with an endless belt 4, the pulley 3 being rotated intermittently by pawl and ratchet gearing 6 driven by a rack 5 which is operated by an air cylinder 7. The wire passes downwardly through a laterally-movable guide 8 to a winding mandrel 26 and the required length is cut off by a knife 9 controlled by a counter 10 which counts the number of rotations of the pulley 3. The mandrel 26 is slidable on a driven shaft 23, Fig. 2, and is formed with teeth at one end engageable with notches in the end of a coaxial driven shaft 24. Each shaft carries a series of pivoted arms 29 which may be swung from or retracted to radial positions by links 32 operated by a slidable rod 31, the arms terminating in coil springs 30 which may be swung from radial positions to positions in which they are parallel to the shaft axis by links 33 operated by a slidable tube 34. The wrapping material 11, Fig. 1, is fed from a roll 12 by wheels 13 which form transverse pleats, the wheels being driven by a rack 21 when a pivoted support 18 is swung downwardly by an air cylinder 22. The pleated material is fed downwardly towards the mandrel 26 by a roller 14 co-operating with a guide 17 and cut to the the required length by a knife 15. As the wire is fed to the mandrel, the latter is moved to the left so that the free end of the wire is gripped between the teeth and notches. The wrapper 11 is gripped between the wire and the mandrel and rolled under the first turn as shown in Fig. 7. After a layer of wire has been coiled, see Fig. 9, the arms 29 are swung out to fold the extending portions of the wrapper so that they form radial flanges. Plates 37 are then swung downwardly to protect the wrapper flanges while the winding of the coil is completed at a faster rate. The guide 8 is then located in a central position while the springs 30 are swung inwardly as shown in Fig. 11 to fold the edges of the wrapper over the external periphery of the coil. A moistened strip of adhesive tape is then fed towards the mandrel and applied to the edges of the wrapper by mechanism D, Fig. 1, the mandrel is moved to the right and the completed package falls into a shoot 61.
Patent GB-122928-A (GB)
Title: Improvements in or relating to Heating Furnaces with Removable Hearth.
IPC: C21D9/00
Filed: 1918-02-16
Abstract: 122,928. Marks, E. C. R., (Soc. Anon. Italiana G. Ansaldo, & Co.). Feb. 16, 1918. Hearths. - A removable hearth for a heating furnace is provided with openings A and transverse passages C for the escape of the heating gases, and with two seals B, B, between its sides and the side walls of the furnace, one above and another below the passages.
Patent GB-131825-A (GB)
Title: Improvements in or relating to Dynamo Electric Machines and the like.
Inventor: IVAMY WILLIAM GEORGE
IPC: F21L13/06
Filed: 1919-02-05
Abstract: 131,825. Ivamy, W. G. Feb. 5, 1919. Dynamo lamps.-In an electric torch supplied with current from a hand-operated magneto, the rotor comprises a number of permanent magnets G, and the armatures a number of coils A on a laminated spider core C. A cord or chain N provided with a finger ring 0 is wound on a spring drum P provided with a pinion adapted to rotate a pawl-carrying plate loose on the rotor shaft H, and the pawl engages with a ratchet-wheel fast on the rotor shaft. The pawl is slotted for engagement with a pin projecting from a disk loose on the rotor shaft, whereby the pin serves to press the pawl into engagement with the ratchet-wheel when the pawl plate is rotated. The mechanism is placed in a casing S closed by a cover S<1>, and the lamp lens T is carried by a screw-cap U which assists in securing the cover S' in place.
Patent GB-144343-A (GB)
Title: Improvements in and connected with screw union fittings for high pressure fluid systems
IPC: F16L19/02
Filed: 1919-02-05
Abstract: 144,343. Dorman & Co., W. H., and Hanson, J. Feb. 5, 1919. Tapered spigot-and-socket joints.-A pipe connexion for high-pressure fluid pipes comprises a screwed mem. her a with a spigot member e which engages a screwed socket member b which is drawn towards the member a by a flanged union nut c. The spigot member is formed with an included angle, for example, of 12 degrees, which is greater than the corresponding angle of the socket; this is preferably two degrees less. When the joint is tightened, the edge of the socket jams into the spigot and so forms a tight joint. The nut c is grooved at j to prevent jamming of the thread g of the spigot member a.
Patent GB-800157-A (GB)
Title: Improvements in or relating to imparting a flame-proof, weather resistant finish to cellulosic textile materials
Inventor: WARD FRANK
IPC: D06M15/423
Filed: 1956-01-30
Abstract: 800,157. Proofing cellulosic materials. COURTAULDS, Ltd. Jan. 29, 1957 [Jan. 30, 1956], No. 2862/56. Class 140. Cellulosic textile material is rendered flameproof and weather-resistant by treatment with antimony oxide or a mixture of antimony oxide with another metallic oxide, a chlorine-containing synthetic resin and an aminoplast, and drying and baking the treated material. The treatment may be in a single stage or the material may be first treated with the aminoplast and then with the other components. Zinc oxide may be used with the antimony oxide and suitable chlorinated resins are polyvinyl or polyvinylidene chlorides or interpolymers thereof or copolymers of vinyl chloride and an acrylic ester or an alkyl acrylate. Suitable aminoplasts are urea-, thiourea- or melamineformaldehydes or mixtures of these and resin precondensates or resin-forming ingredients may also be used. The cellulosic material may be of cotton, linen, regenerated cellulose or mixtures of these. A plasticizer such as tricresyl phosphate or a chlorinated hydrocarbon, a coloured pigment or ammonium thiocyanate may also be added. The mixtures may be used in aqueous dispersion.
Patent GB-590803-A (GB)
Title: Improvements in or relating to percussion musical instruments such as drums and tympani
IPC: G10D13/02
Filed: 1945-02-05
Abstract: 590,803. Musical drums. DALLAS & SONS, Ltd., J. E., and PERCY, C. W. Feb. 5, 1945, No. 2882. [Class 88 (ii)] In a percussion musical instrument in which pedal-operated mechamism is provided for adjusting the tension of the vellum 13, Fig. 6, the motion-transmitting means operated by the pedal 10 includes a locking device having two slide members 24, Fig. 2, between which a wedge member 22 is disposed, arranged between parallel guides 26 secured to the casing 9. When a pull is exerted on the wedge 22 by the vellum tension, by means of the hoop 49 (Fig. 6), rods 51 and 53, spindle 14 (Fig. 1) and chain 15, the wedge locks the slide members 24 against the guides 26 and the tension is maintained. A pull on the wedge exerted by the foot tread 10 loosens the wedge between the slide members and moves the wedge and slide members as a whole to increase the tension, sudden removal of the prossure on the foot tread serving to effect locking under the control of the vellum tension, while gradual release allows the slides to move in the other direction under the control of the vellum tension to reduce the tension. A modified form of locking device is described (Fig. 5, not shown) which includes pawls to effect release after locking.
Patent GB-271930-A (GB)
Title: Improvements in pneumatic despatch apparatus
IPC: B65G51/16
Filed: 1926-02-01
Abstract: 271,930. Sturtevant Engineering Co., Ltd., and Backhouse, E. Feb. 1, 1926. Pneumatic dispatch apparatus. - Means for automatically reducing or stopping the flow of air through, a pneumatic dispatch system when no transmission is being effected comprise a cylinder 5 communicating with the dispatch tube 4 through a port 9, and fitted at its lower end with a hinged valve 6 adapted to be opened by gravity when no carrier is in the tube 4. A valve 11. sleeved on an axial tube 12 in the cylinder 5. carries a disc 10 at its lower end, and when air admitted by the opened valve 6 raises the disc 10, the valve 11 is adapted to cover ports 13 in the tube 12 and shut off communication between the tube 4 and the upper side of an annular piston 14 fitting in the cylinder 5. The upper part of the cylinder 5 is connected through an adjustable bleed-valve 17 with a suction-pipe 19, so that when the parts 13 are closed the piston 14 rises at a. rate determined by the setting of the valve 17. Near the top of its stroke, the piston 14 engages a cross-bar 20 fixed on a rod in the tube. 12 and attached to the valve 6, which is thus closed. The sleeve valve 11 then falls to open the ports 13 and allow the piston 14 to fall. A disc 31 on the sleeve 11 fits in an inverted dash-pot 30, so that the sleeve. 11 shall not fall during the time for which the flow of air is interrupted in the tube. 4 by the discharge of a carrier, although the longer time required for inserting another carrier in the tube 4 allows the sleeve 11 to fall and reset the control mechanism. In pneumatic tubes of great length, the time during which the piston 14 rises may be extended by an auxiliary piston attached to the lower end of the control cylinder valve rod and working in an oil dash-pot. In a modified construction, adapted to link up two tubes 4 and admit air to the tube in use, the open end of the control cylinder is connected to the tubes by a two-way box, on the underside of which are arranged side by side the inlets for the carriers. Ports inside the box connect the tubes with the air supply, and a swing flap valve, operated by a forked lever carried on a vertical spindle, is adapted to close one or other of the ports, the forked lever being actuated by projections on the hinged closing doors of the tubes. The flap valve is biassed to either side of the centre line so that it will remain on its seat when thrown over.
Patent GB-218592-A (GB)
Title: Improvements in or relating to valve actuating means
IPC: F16K35/02
Filed: 1924-02-04
Abstract: 218,592. Johnson, W. L. Feb. 4, 1924. Actuating-mechanism; locking. - A fitting adapted to be attached to a gas cock of ordinary construction is provided with loading springs to ensure the closing of the valve and with a catch to hold the cock in its open position. An arouate frame 11<1> is secured to the cock body by a clamp 13 and supported at each end by hooklike members 10 engaging the gas pipe 11. A wire frame 16 surrounding the actuating handle 17 is connected by crossed springs 15 to the ends of the member 11<1> and has a locking bolt 19 slidably mounted in eyes 20 and adapted to engage one or other of a series of radial arms 12 mounted on the arcuate member.