baber/WOPTO huggingface dataset:
Patent GB-725875-A (GB)
Title: Process for the manufacture of n-methyl-ª-cyclohexen-(1)-yl-ethylamine and intermediates for the preparation thereof
Filed: 1953-05-21
Abstract: The invention comprises compounds of the general formula <FORM:0725875/IV (b)/1> wherein R is an aryl or lower alkyl radical. It also comprises a process for the manufacture of N-methyl-b -cyclohexen-(1)-yl-ethylamine by reacting b -cyclohexen-(1)-yl-ethylamine in the presence of a condensing agent with a ketone of the general formula C6H5COR where R is an aryl or lower alkyl radical, to form the corresponding Schiff base, reacting the latter with a methylating agent and treating the condensation product formed with an alkaline agent so as to produce N-methyl-b -cyclohexen-(1)-yl-ethylamine.  In an example, b -cyclohexen-(1)-yl-ethylamine and benzophenone are refluxed in xylene with the complex salt of b -cyclohexen-(1) - yl - ethylamine with zinc chloride.  The product obtained, after separation of the zinc chloride is methylated by reaction with dimethyl sulphate and the methylation product is decomposed with sodium hydroxide to give N - methyl - b  - cyclohexen - (1) - yl - ethylamine.  Specification 685,747 is referred to.
Patent GB-892315-A (GB)
Title: Apparatus for the removal of finest particles from a slurry particularly from coal
IPC: B03B5/62
Filed: 1958-05-05
Abstract: 892,315. Washing granular material. SCHUCHTERMANN & KREMER-BAUM AKTIENGESELLSCHAFT FURAUFBEREITUNG. May 5, 1958. [May 3, 1957; June 8, 1957; June 27, 1957; Jan. 17,1958], No.14374/58. Class 82(2). A sink and float apparatus comprises a settling tank 14, a central slurry feed pipe 11 with its outlet below the surface of the separating liquid in the tank and a deflector 15 mounted in front of the feed pipe outlet to deflect the slurry feed through 90 degrees, the floats overflowing at a weir 19 and the sinks collecting in the tank sump and being removed by a bucket conveyer 3. A coaxial sleeve 12 movably mounted on pipe 11 supports the concave deflector 15 and the position of the sleeve 12 determines the size of the slurry discharge outlet. A further coaxial sleeve 18 may form the deflector support. A rinsing filter pipe 20 and a baffle plate 17 which is more concave than deflector 15 produces an upwardly directed rinsing spray which crosses the deflected slurry stream. The filter, mounted internally or externally and movable coaxially with the feed pipe is positioned with its outlet below the deflector 15, the particle size of the sinks being regulated by the amount and speed of the rinsing stream. In a modification (Fig. 3) the feed pipe 21 enters an open cylinder 23 which is beneath the level of the liquid in the tank and is provided with a weir 27 at a lower level than the tank overflow 29. A rinsing filter 30 forms an annular spray 22 below a deflector plate 5, the fines overflowing at 29 and intermediate size particles at 27. The tank overflow may be telescopically adjustable to adjust the size of the particles in the sinks and floats and instead of the cylinder 23 the feed pipe may be surrounded by two truncated cones joined together and varying in diameter over the entire length, the largest diameter being above the feed pipe outlet. The apparatus is particularly suited to the separation of fine coal from a slurry.
Patent GB-560788-A (GB)
Title: Improvements in or relating to fluid flow-control cocks
IPC: F16K41/12
Filed: 1942-10-14
Abstract: 560,788. Valves. SWAIN, C. D., and TILLING, Ltd., T. Oct. 14, 1942, No. 14389. [Class 135] A valve 15 carried by a diaphragm 11 and urged towards closed position by a spring 21 is opened by a turnable face cam 23. Balls 26 provide snap action locating means, and an extension 33 may engage one of a pair of ' projections 32.
Patent GB-129043-A (GB)
Title: Improvements in and relating to Range-finding and the like Instruments.
Inventor: TAYLOR ALFRED
IPC: G01C3/12
Filed: 1917-10-05
Abstract: 129,043. Taylor, A., and Taylor, H. D. Oct. 5, 1917. Range-finders ; opticol systems .-A range-finder having a single telescope system has two prisms, one for each end, moving equally and simultaneously about axes parallel to their refracting edges for variably deflecting for rangemeasuring purposes the rays of light. In the construction shown in Fig. 1, the achromatic prisms 18, 19 swing in the same direction, being con. nected together by parallel rods 29, the prism 19 being turned directly by means of a head on a shaft 22, worm and worm-wheel 23, 24, pinion 25, and a toothed sector 26. which is attached to the cell 27 carrying the prism. Adjustment to obtain the correct infinity position is effected by means of slightly prismatic windows 5, 6 rotatable in their own plane, the use of a duplicate prism as described in Specification 12735/04 not being possible in the present construction. The swinging are so arranged that in the infinity position the outer surfaces are normal to the incident light. Light from the end-reflectors 1, 2, 3, 4 is reflected by means of the crossed reflectors 7, 8, and a reflector 9 into the telescope-system shown, comprising a halving prism 12, which may he a female prism as shown in Fig. 3, or a compound one consisting of a male halving prism of low index or prismatic lens 16, Fig. 4, cemented into a ferrule halving prism 17 of high index. The Provisional Specification describes the use in a system having a female halving prism of a central longitudinal screen. In the construction shown in Fig. 5, the prisms 36, 37 swing in opposite directions, the connecting rods for moving the prism 36 being connected to a gear 56 gearing with a wheel 55 attached to the mounting of the prism 37, the swinging- movement being imparted hy means of a head actuating a gearing similar to that used in the construction shown in Fig. 1. Another arrangement, shown in Fig. 7, has the prisms 65, 66 swinging in the same direction and is designed to avoid errors due to expansion. The rod 71 connecting the parallel levers 69, 70 attached to the prism mountings is of the same length between pivots as the distance between the prism mountings pivots and is preferably of the same material as the range-finder body. In Fig. 8 is shown a range-finder in which light from the end refleetors is directed by the reflectors 78, 79 into the telescope objective 80. Optical data are given for the achromatic prisms. Specification 7392/10 also is referred to.
Patent GB-1047682-A (GB)
Title: Haze-free photographic film
IPC: C08L69/00
Filed: 1963-04-10
Abstract: Copolyesters contain the residues of (1) carbonic acid, (2) bisphenol A, and (3) isophthalic and/or terephthalic acid in an amount of from 0.1 to 6 mole per cent based on (b).  The copolyester may be made by reacting (a) phosgene, bisphenol A and the dicarboxylic acid either in the presence of a tertiary amine (with or without an inert solvent) or by the interfacial process; (b) phosgene, a suspension of an alkali metal salt of bisphenol A in an inert solvent and an alkali metal salt of the dicarboxylic acid or (c) a diester of carbonic acid, bisphenol A and the dicarboxylic acid.  The copolyesters are soluble in methylene chloride, 1:2-dichloroethylene and chloroform and may be cast from these solvents into films (see Division B5]. Reference has been directed by the Comptroller to Specification 870,095.
Patent GB-543991-A (GB)
Title: Improvements in or relating to variable-pitch airscrews
IPC: B64C11/42
Filed: 1940-09-20
Abstract: 543,991. Screw propellers. FAIRHURST, L. G., and NEWPORT, H. Sept. 20, 1940, No. 14409. [Class 114] A variable-pitch airscrew of the kind comprising an adjusting-ram 10, 12 controlled by a governor is prevented from automatically assuming fine-pitch position when control is lost, by providing the ramchamber 14 from which liquid is delivered during the self-adjusting movement with a valve 24, Fig. 2, loaded to a pressure which is greater than can be exerted during the self-adjusting movement but is less than the working pressure. During controlled working, liquid is supplied through a hollow shaft 16 and valves 22, Fig. 2, to the chamber 14 to move the cylinder towards the left and thereby moves the blades towards coarse-pitch position, liquid from the chamber 15 escaping through a space 18. When liquid is supplied to the chamber 15, the cylinder moves towards the right, the blades are moved towards fine-pitch position, the working pressure overcomes the valve 24, and liquid from the chamber 14 escapes through the valve 24 and shaft 16. To permit movement of the blades into the medium-pitch position when control is lost, the shaft 16 may be provided with a lightly loaded valve 25 which permits liquid from the chamber 14 to escape through the shaft 16 until the medium-pitch position is reached, whereupon the cylinder closes the valve. During normal working, the valve and a mounting tube 27 therefor are moved in opposition to a spring 29 when the blades are being adjusted from medium to fine-pitch position.
Patent GB-621959-A (GB)
Title: Improved non-skid and adjusting means for use on ladders and the like
IPC: E06C7/44
Filed: 1946-05-13
Abstract: 621,959. Ladders. WISE, F. B., SHINE, P., and BELL, E. W. D. May 13, 1946, No. 14432. Convention date, April 3. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 19, 1947] [Class 20(ii)] In a non-slip extension 2 for a ladder having a serrated engagement with a plate 6 fixed to the ladder and secured by a bolt 3 in a slot 7 and having a serrated foot 1, the foot 1 is wider than the extension 2 which is formed with a recess housing the serrations on the plate 6.
Patent GB-586632-A (GB)
Title: Improvements relating to the amplification of power in a train of duration-modulatedpulses
IPC: H03K7/00
Filed: 1943-09-03
Abstract: 586,632. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and SCULLY, C. T. Sept. 3, 1943, No. 14453. [Class 40 (v)] In a duration-modulated pulse signalling system, both the power level and the degree of modulation are increased by interpolating replicas of the original modulated pulses in the gaps between them. As shown in Fig. 7, the modulated pulses are fed through an amplifier 32 to a delay circuit, and are reflected at its open terminals 34 so as to add delayed pulses to the input of the further amplifier 27. As the delayed pulses are weaker than the original, the amplifier 27 may operate as a limiter supplying pulses all of the same amplitude to the output terminals 33. By using several delay circuits, connected in parallel and with progressive delay periods, further pulses may be interpolated. Alternatively the delay circuits may operate in series with interposedisolating amplifiers (Fig. 8, not shown). In the modified arrangement of Fig. 5, the modulated pulses are used to synchronize a saw-tooth generator 21 operating only during the pulse gaps, the saw-tooth period being slightly longer than the maximum width of the modulated pulses. The input pulses are also applied to a storage or integrating circuit 22 including a condenser which is charged to a level dependent on the duration of the applied pulse. This condenser is discharged just before the arrival of the succeeding pulse bya discharge circuit 26 operated by the control circuit 25 which is synchronized by the incoming pulses. The saw-tooth wave and the voltage on the storage condenser 22 are applied to an amplifier limiter 23 which passes pulses corresponding to the tips of the saw-tooth wave to a further amplifier 24 which is also fed with the original pulses. Detailed circuits operating according to Fig. 5 are described in the Specification (Fig. 9, not shown). Specifications 579,118, [Group XXXVIII], and 582,324 are referred to.
Patent GB-506098-A (GB)
Title: A revolving cylinder internal combustion engine
IPC: F02B57/00
Filed: 1938-05-16
Abstract: 506,098. Revolving-cylinder engines. O'LEARY, P., and SHARKEY, W. May 16, 1938, No. 14494. [Class 7 (ii)] In an engine with cylinders parallel to and arranged around a central axis about which they rotate, and a piston in each cylinder connected to an inclined plate 25, a disc 5 carrying the cylinders and the inlet and exhaust valve mechanism for the cylinders has an extension 4 located coaxially with the central axis, which carries a rotating pipe 6 through which mixture is drawn into the engine cylinders, and in the outer periphery of which are formed grooves 7, 8 which act as cams for operating the inlet and exhaust valve mechanism. The pipe having the cam grooves is rotated at half-speed in the same direction as the engine by gearing 14, 17, 18, 19 so that a tappet rod for each valve, carried in an enlargement 9 of the extension 4, is operated by the cam groove 7 or 8. The valve mecharusm may be provided with weights to counterbalance the centrifugal force acting thereon. Specification 491,481, [Group XXVI], is referred to.
Patent GB-580940-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D31/02
Filed: 1944-07-29
Abstract: 580,940. Road - vehicle frames. METROPOLITANCAMMELL CARRIAGE & WAGON CO., Ltd., RAYER, F. H., BIRMINGHAM & MIDLAND MOTOR OMNIBUS CO., Ltd., and SINCLAIR, D. M. July 29, 1944, No. 14530. [Class 108(i)] A combined chassis and body frame for a motor coach or omnibus comprises at each side a deep rigid girder of which the base is formed by a longitudinally extending box or channel 10, the web by spaced uprights 11, and the upper member by horizontally aligned sheet metal pressings 14 which form part of outer panelling. Each pressing is inturned at 15 to meet the window mountings and at 16 to engage the upper edges of the panels 21. An angle-section strip 17 is welded to the pressing, supporting the waist rail 18 and securing the pressing to the pillar. Where the bottom members of the girders are gapped to accommodate the wheels, vertical pressings are rigidly secured between upper and lower members on each side of the gap..
Patent GB-539140-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/20
Filed: 1940-09-27
Abstract: 539,140. Centrifugal separators. JAHN, A. R., and JAHN, R. C. Sept. 27, 1940, No. 14627. [Class 23] A centrifugal separator for separating fine particles of substances, such as starch, chalk, china clay, or coal, from water, consists of an outer tapered drum 15 with an inner cage 28 carying a helical member 33 and rotated slightly faster than the drum. The cage on the shaft 7 is driven by the pulley 9, while the drum 15 is attached to the annular plate 12 and end plate 10 and is driven by the pulley 8. The outside of the drum 15 carries a cylindrical surface 16 which is supported between three rollers 17, 18, 19. The end of the cage 28 is secured to a conical feed tube 30 to which material to be treated is supplied by the tube 31. The material flows through the machine and is thrown out to the periphery of the drum; it reaches a depth determined by the plate 12 which acts as a weir. The water flows over this plate into the collector 13 from which it is drawn off. The suspended particles lie against the wall of the drum 15 and are carried to the small end by the member 33 which consists of rubber strip held in brackets 32. The particles reach the casing 35 from which they are removed by the conveyer 36. Holes are made in the brackets 32 and the rubber oozes into them to hold the strip in position.
Patent GB-135789-A (GB)
Title: A New or Improved Chain or like Adjustment for Motor Cars, Motor Cycles and the like.
Inventor: MORGAN HENRY FREDERICK STANLEY
IPC: F16H7/14
Filed: 1918-11-28
Abstract: 135,789. Morgan, H. F. S. Nov. 28, 1918. Chain and like adjusters.-A chain or belt adjustment is provided by mounting the axle in bearings carried by members 15 pivoted to the frame members 7 and adjusted by means of a screw 18. A cover-plate 17 is provided for the bearing.
Patent GB-1084382-A (GB)
Title: Telecommunication pulse repeater
Inventor: HUSBANDS KEITH RONALD FREDERIC
IPC: H04Q1/36
Filed: 1965-04-07
Abstract: 1,084,382. Automatic exchange systems. ERICSSON TELEPHONES Ltd. April 6, 1966 [April 7, 1965], No. 14767/65. Heading H4K. A pulse repeater, for repeating and correcting pulses which have been distorted through transmission along long lines, comprises a first line relay A having two aiding windings, connected respectively in series with the two wires of an incoming line l, and a third opposing winding connected in series with a contact R1 of a pulse repeating relay R. When loop current flows, A comes up followed by R whereby the outgoing loop 2 is closed and an opposing field, which is insufficient to have any effect as yet, is produced in relay A. When the loop l is broken, A falls back quickly due to the opposing field and is followed by R. The capacitor C tends to maintain A released since it is charged via A's third winding whenever contact R1 is open. Diodes D2 and D3 serve to suppress transients on the line.
Patent GB-940926-A (GB)
Title: Screw press for extruding synthetic thermoplastic material
IPC: B29C48/67
Filed: 1962-04-17
Abstract: 940,926. Extrusion machines. S.A.S. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) DI M.I. COLOMBO & C. April 17, 1962 [July 7, 1961], No. 14817/62. Heading B5A. In an extrusion machine for thermoplastic material having a pair of intermeshing screws rotating in the same direction, the core of each screw 15, 16 has at least two smooth cylindrical bosses 35/35a and 36/36a separated by a screwthreaded section, and each boss 35, 35a is transversely aligned and substantially in contact with the corresponding boss 36, 36a on the other screw, the ends of each boss merging into their respective cores and the cylindrical portion having a length at least equal to its diameter. The cylindrical portion should preferably be less than twice its diameter in length. The barrel 10 has a heating jacket 14.
Patent GB-946553-A (GB)
Title: Improvements relating to the crimping of artificial filaments by the compression process
IPC: B65H59/38
Filed: 1960-04-28
Abstract: 946,553. Automatic quantity control. BARMER MASCHINENFABRIK A.G. April 28, 1960 [April 30, 1959], No. 14980/60. Heading G3R. In apparatus for crimping artificial filaments by compression the withdrawal of filament from a crimping chamber is automatically controlled by electrical means a movable operating part of which exerts the crimping pressure on the filament in the chamber. In Fig. 1 a filament 1 is fed by rollers 2, 3 into a crimping chamber 4 the lower part of which is heated and the upper part of which is cooled. Balls 6 supply the necessary back pressure and the crimped filament is drawn off through them and wound on a tube 26, free to move along a rod 28, to form a package 27 which is frictionally rotated by a laying cylinder 17 driven by a motor 22. When the quantity of crimped filament in chamber 4 reaches a predetermined value, balls 6 influence the inductance of a coil 9 so that an A.C. bridge circuit is unbalanced to operate relays 15, 16 thereby increasing the speed of motor 22 by connecting it to a source R, S, T of higher frequency. Thereafter the relays operate intermittently to maintain the quantity of filament in the chamber at the predetermined value by controlling the average speed of withdrawal from the chamber. In one modification relay 16 switches between different tappings on a transformer supplying motor 22 and in another it intermittently short circuits an inductance in series with the motor to control motor speed by varying the applied voltage. Direct operation of a switch and replacement of relay 15 by a transistor operating as a switch are referred to. Specification 888,786 is referred to.
Patent GB-869354-A (GB)
Title: Improvements in or relating to screwthread-cutting apparatuses having self-opening die heads
IPC: B23G5/12
Filed: 1958-05-09
Abstract: 869,354. Screwing die-heads. FISCHER A.G., G. May 9, 1958 [May 9, 1957], No. 15025/58. Class 83 (3). In a screwing-machine wherein a self-opening die-head A, Fig. 1, is carried by a shank 3 axially-movable within a bush 5 by a leadscrew and nut 7, 8, the head and its cam-plate 57 are drawn axially during screwing, until a pin 35 on the cam-plate depresses a latch 33 to release it from a slot 67 to allow a spring 63 to rotate the cam-plate and open the head. The cam-plate carries a bolt 42 attached to a block 52 engaging a helical slot 25 in a sleeve 56, in which the slot 67 is formed, the sleeve 56 being rotatable on a sleeve 50 and connected thereto by the spring 63, Fig. 3. Sleeve 50 is secured to the bush 5 by screws 54, Fig. 1, the bush being axially-restrained in a body 48 and rotated, for screwing, by a handle 17, Fig. 2, attachable to one of the spindles 7, 21, or 24, to give respectively a direct drive, or a geared-up drive by pinions 19 or 22. To set the diameter of cut, the bolt 42 is released and the camplate rotated on sleeve 56 with the aid of a scale 65 and to set the head for screwing the cam-plate is rotated, carrying with it sleeve 56 until the latch 33, Fig. 1, snaps into the slot .67. During screwing the shank 3, which is splined within the bush 5, is advanced by the lead-screw 8, and the block 52 moving along the helical-slot 25 rotates the cam-plate to produce a taper-thread. After the required length of thread has been cut, the pin 35 on block 52 depresses the latch 33 to allow spring 63 to open the head. The length of thread produced is determined by the axial setting of the block 52 along a slot 41 in the cam-plate, as indicated by a scale 66, Fig. 2, Nut 9, Fig. 1, is retained axially by a latch 12, and closes 60 are prevented from falling out of the head, when the cam-plate is disengaged, by a ball 37 and spring 38, Fig. 6 (not shown).
Patent GB-677336-A (GB)
Title: Improvements in or relating to closures for bottles and the like
IPC: B65D47/24
Filed: 1949-06-03
Abstract: 677,336. Stoppers ; collapsable tubes. WEISS, A., and MUSIC, L. Aug. 30, 1950 [June 3, 1949; Aug. 3, 19491, Nos. 15026/49 and 20251/49. Classes 66 and 125(iii) A closure for a bottle &c. comprises a rubber &c. stopper which has a passage through it, in combination with a cap having a seating to engage the stopper so that as the cap is screwed &c. on to the bottle &c. the pressure of the seating deforms the stopper and closes its passage wholly or partially. As shown the rubber stopper 15 fits into the neck 16 of the bottle and is provided with a nozzle 18 and a central passage. A cap 13 adapted to be screwed on the neck 11 of the bottle has tapered &c. seating 22 formed on the end piece 14 which may be of metal or plastic and screwed into or moulded in the end of the cap 13. An end opening 23 may be provided. When the cap 13 is screwed home the seating 22 deforms the nozzle 18 and closes the passage wholly or partially whereby the flow of liquid from the bottle may be stopped or regulated. In a modification the end of the nozzle may be provided with slits while in another modification the end of the nozzle may be solid and the passage terminate in cross passages. The aperture 23 may be omitted, in which case the cap 13 has to be removed to enable the contents of the bottle to be discharged.