baber/WOPTO huggingface dataset:
Patent GB-526483-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04L5/06
Filed: 1939-03-17
Abstract: 526,483. Diplex transmission. STANDARD TELEPHONES & CABLES, Ltd., MEERS, R. A., and PROBERT, G. O. March 17,1939, No. 8562. [Class 40 (iv)] Speech or music from two sources modulates respectively two carrier waves of the same comparatively low frequency, the upper side band being selected for transmission in one case and the lower in the other so that both channels are in the audible range and can be transmitted and received over circuits originally designed to handle only one channel. As shown, speech currents from line L1 after passing a volume range compressor and a low pass filter LP1 passing frequencies up to 12750 modulate a carrier of 3,000 cycles and the lower of the resulting side-bands is selected for transmission. Speech from line L3 is similarly treated but the upper side-band is selected. Both selected sidebands then pass to a telephone line or modulate a common carrier in a wireless transmitter T. Conversely, signals detected by a wireless receiver R2 are divided by filters into separate audio frequency channels which are converted by demodulation into intelligible speech signals which are fed to the respective lines via volume range expanders.
Patent GB-203633-A (GB)
Title: Improvements in or relating to grinding tools
IPC: B24B33/08
Filed: 1923-03-26
Abstract: 203,633. Hall, E. A. March 26, 1923. Rotating-tool apparatus; wheels and other tools.-A grinding-tool for trueing the interior surface of a motor cylinder comprises a body to which are hinged, on pins 6 parallel to the axis of the tool, 'holders 2 for bars 3 of abrasive material. The holders are pressed outwardly bv bell-crank levers 11 located in recesses in the body 1 and moved about fulcrums 12 by a slidable disc 14 which is pressed by a spring 8. The tension of the spring may be varied by adjustment of a screw 9 threaded into the body 1.
Patent GB-164878-A (GB)
Title: Improvements in railway, tramway and like rail joints
IPC: E01B11/32
Filed: 1920-12-24
Abstract: 164,878. Woodington, C. H. Dec. 24, 1920. Rail joints.-A rail joint comprises a tee filling- piece 2 disposed between the ends of the rails and connected thereto by the usual fish-plates, the head 4 of the filling-piece being elongated and shaped to over-lie each associated end of the rails and to present a curved bridge thereover.
Patent GB-1186071-A (GB)
Title: Apparatus for Installation of Cathode Dome with Diaphragm in Electrolytic Cell
Inventor: ADAEV EVGENY IVANOVICH
IPC: C25C7/00
Filed: 1967-02-23
Abstract: 1,186,071. Installing diaphragms in electrolytic cells. E.I. ADAEV, A.V. BLINOV, G.M. KAMARIAN, V.A. NOVOSELOV, V. N. SUCHKOV AND L. M. JAKIMENKO. Feb. 23, 1967, No. 8707/67. Heading C7B. Apparatus for the installation of a cathode dome 9 and cylindrical diaphragm 11 in an electrolytic cell, e. g. for the production of sodium by the electrolysis of sodium chloride in a fused halide bath, includes a stand for assembling the dome, diaphragm and a dome supporting frame; an electrolytic cell in which the assembly is to be used; and a transferable hoisting and setting means for transference of the assembly from the assembly stand to the electrolytic cell; the assembly stand and the cell each being provided with a similar locating means which mate with a locating means on the hoisting and setting means, and by means of which the relative positions which will be occupied by the diaphragm and the electrodes when the diaphragm is mounted in the cell, can be determined during assembly of the diaphragm, dome and dome supporting frame with reference to the assembly stand. In the embodiment shown the assembly stand comprises a cylinder 1 mounted on base 2, and a plate 5 mounted on supports 4, the plate 5 being provided with centreing pins 6. Mounted above the electrolytic cell is a similar plate (5<SP>1</SP>) provided with centreing pins (6<SP>1</SP>), see Fig. 3 (not shown), the pins 6<SP>1</SP> having a similar relationship to the electrodes in the electrolytic cell, as the pins 6 do to the cylinder 1 of the assembly stand shown. The hoisting and setting means shown in position above the plate 5 includes a cylinder 13 provided with flanges 20 in which recesses are formed to accommodate the pins 6 or 6<SP>1</SP> when positioned above the assembly stand or cell, respectively. Mounting of a diaphragm 11 and cathode dome 9 into the cell comprises assembling the diaphragm 11 and dome 9, and connecting them to the carrying frame 10 via bolts 12, such that the diaphragm/dome assembly is concentric with respect to the cylinder 1, winching the assembly up into the cylinder 13, transfering the cylinder 13 and associated structures to the electrolytic cell by means of, for instance, a gantry crane, engaging the recesses in the flanges 20 of cylinder 13 with the pins (6<SP>1</SP>) of the (5<SP>1</SP>) which is mounted above the cell, and lowering the diaphragm and dome down into the cell and between the electrodes which are arranged concentrically one about the other.
Patent GB-405475-A (GB)
Title: A new or improved apparatus for use in playing an indoor or outdoor game
IPC: A63B67/08
Filed: 1933-03-23
Abstract: 405,475. Toys. PERRY, E. S., 44, Green Bank Avenue, Hall Green, Birmingham. March 23, 1933, No. 8739. [Class 132 (iii).] An indoor or outdoor game apparatus comprises an irregularly shaped board a around the periphery of which a grooved spool b is moved by manipulating the board. The spool comprises dished metal discs b, grooved at e, weighted at their rims by wires f, and secured together by a pin c which carries a friction sleeve d, for example, of rubber. The sleeve d may be dispensed with, when a rubber edge may be provided on the board a. A number of differently shaped boards are provided, some having gaps across which the spool is adapted to jump. Alternatively, the spool may be made of wood or of the material known under the Registered Trade Mark "Bakelite," and the boards, of three ply wood, sheet metal, papier machÚ or composition.
Patent GB-226719-A (GB)
Title: An improved piston ring
IPC: F16J9/08
Filed: 1924-04-07
Abstract: 226,719. Petrie, D. April 7, 1924. Piston packing.-Piston packing consists of two interlocking split rings a, d of L-section, the flange c of the ring d engaging a groove in the flange of the ring a. In order to assist expansion, the gases are admitted to the backs of the rings a, d through grooves i in their lower and upper surfaces respectively. The ends of the rings have overlapping joints, and the joints are arranged out of register.
Patent GB-159767-A (GB)
Title: Improvements in key mechanism for wood-wind instruments
IPC: G10D9/04
Filed: 1920-03-25
Abstract: 159,767. Loomis, A. March 25, 1920. Wood and like wind instruments. - A system of operating, by rings, keys, and stoppers, in which two or more operating-members are arranged, to operate a carrier to which a floating member is pivoted, and the motion of which is determined by the motion of one or more of the carrier-operating members, also the operation of the floating member independently may control the motion of one or more of the carrier operating members. Further, two or more of the carrieroperating members may be arranged to act on two or more floating members, and the motion of the latter may be simple, differential, or compounded. The invention is described in relation to flute, oboe, and clarinet, but is stated to be applicable to any wind instrument having lateral openings, the various combinations of parts and movements being varied to suit the various notes to be operated and the various parts of the scale. Fig. 1 shows two forms in which carriers 5 or 25 are each operable by two rings and have floats 13, 33 pivoted thereto, so that when the rings on the carrier are depressed the stopper on the float closes, but can be raised by independent motion of the float even though the carrier is depressed. Fig. 5 shows an arrangement for operating the octave stoppers for an oboe in which a key 92 is attached to a carrier sleeve 91, the float 89 being in the form of a spring-raised centrally-pivoted lever pivoted to stopper arms at each end. One stopper arm 95 is rigidly connected through rod 88 with ring 94, the other stopper arm being carried by sleeve 87. Various modifications of these methods are shown in connection with a the notes of an octave in a clarinet, but are stated to be applicable to any similar wind instrument.
Patent GB-241799-A (GB)
Title: Fuel supply systems for internal combustion engines
IPC: F02M1/00
Filed: 1925-04-03
Abstract: 241,799. Ristau, W. M. April 3, 1925. Spray carburettors. - Two carburettors 4, 5, adapted to be used alternatively, open through branches 3, 2 into a common induction pipe 1, and are provided with normally-closed throttle valves 21, 30 operated independently by a common rod 38, and also with normally-closed air valves 41, 42 operated independently by a common rod 49. The throttle valves 21, 30 are carried by shafts 20, 29, Fig. 4, are held closed by springs 23, 32 attached to crank arms 22, 31 on the shafts, and are independently opened by the rod 38 which is provided with a cross-piece 39 adapted to engage, according to its direction of motion, either the forked end 28 of an arm 27 on the shaft 20, or the forked end 37 of an arm 36 on the shaft 29. The air valves 41, 42 are each carried by a spindle 43, Fig. 5, provided at the top with an arm 44 carrying a spring- loaded vertical member 45 provided with a groove 46. The valves 41, 42 are independently opened by the rod 49 which is provided with a cross-piece 50 adapted to engage, according to its direction of motion, with the groove 46 of one of the members 45. The float chambers are fed from a common tank 15 through valve controlled pipes 1G, 18. The carburettors are removably secured to. the branches 2, 3 of the induction pipe and to the arms 10 of a T-shaped air inlet 13. When one of the carburettors is removed for repair, a closure plate is secured over the mouth of the corresponding branch 2 or 3.
Patent GB-498791-A (GB)
Title: Improvements in alloys and in methods of manufacturing them
IPC: C22C1/03
Filed: 1938-03-23
Abstract: An alloy which is homogeneous in the sense that every portion having a volume as great as 1 cubic mm. is of substantially the same composition is made by mixing two different molten masses which contain between them all the constituents of the alloy and rapidly chilling the mixture, the temperature of neither of the molten masses being as high as the lowest temperature at which the resulting alloy would be completely molten.  The alloy may be composed of three metals, of which the first, for example tungsten, has a much higher melting point than either the second, for example nickel, or the third, for example copper, and is much more soluble in the second than in a mixture of the second and third, one of the molten masses being a solution of the first metal in the second and the other being the third metal.  The molten masses may be poured together through a funnel into a chill mould.  A specific example consists of 36 per cent of tungsten, 46 per cent of nickel, and 18 per cent of copper.
Patent GB-658560-A (GB)
Title: Process for the preparation of pyrrocolinocarbocyanine dyes
IPC: C09B23/00
Filed: 1949-04-01
Abstract: 2 : 3-Diphenylpyrrocoline is prepared by adding a hot aqueous solution of sodium carbonate to a hot aqueous solution of a-picoline desobromide.  2 - p - Carboxyphenyl - 3 - methylpyrrocoline is prepared by hydrolysing 2-p-cyanophenyl-3-methylpyrrocoline by heating with concentrated hydrochloric acid in a sealed tube.  2 - p - Cyanophenyl - 3 - methylpyrrocoline is prepared by boiling an aqueous solution of a -picoline-p-cyano-a -methylphenacyl bromide and sodium carbonate.  a -Picoline desobromide is prepared by heating together a -picoline and desyl bromide.  a -Picoline-p-cyano-a -methylphenacyl bromide is prepared by heating together a -picoline and a -bromo-p-cyanopropiophenone.  a -Bromo-p-cyanopropiophenone is prepared by adding anhydrous aluminium chloride and then bromine (dropwise) to a chilled ether solution of p-cyanopropiophenone. p-Cyanopropiophenone is prepared by diazotizing p-aminopropiophenone hydrochloride, neutralizing, and adding slowly to a cold suspension of cuprous cyanide mixed with benzene.ALSO:A pyrrocolino-carbocyanine dye is prepared by condensing a 1 : 3-trialkoxypropene with a pyrrocoline of the general formula <FORM:0658560/IV (c)/1> wherein R1 and R2 are each a hydrogen atom or an alkyl or aryl group, and Z represents the atoms to complete a heterocyclic ring of the pyridine series, in the presence of a substantially anhydrous carboxylic acid and a metal salt of an acid which is stronger than the carboxylic acid.  2 : 3 : 21 : 31 - Tetraphenyl - 1 : 11 - pyrrocolinocarbocyanine bromide is prepared by refluxing together 2 : 3-diphenylpyrrocoline, 1 : 3 : 3-trimethoxypropene, potassium bromide, and glacial acetic acid.  2 : 21-Di-p-carboxyphenyl - 3 : 31 - dimethyl - 1 : 11 - pyrrocolinocarbocyanine perchlorate, 2 : 3 : 21 : 31 - tetramethyl - 1 : 11 - pyrrocolinocarbocyanine bromide, 2 : 21 - diphenyl - 1 : 11 - pyrrocolinocarbocyanine bromide and perchlorate, and 2 : 21-dimethyl-1 : 11 - pyrrocolinocarbocyanine bromide and perchlorate are similarly prepared.  The dye bromides may be converted to the dye iodides, and the latter to acetates, thiocyanates, or sulphamates.  Specification 533,238 is referred to.
Patent GB-552115-A (GB)
Title: Improvements in and relating to the manufacture of aromatic hydrocarbons
IPC: C07C2/76
Filed: 1940-07-12
Abstract: 552,115. Aromatic hydrocarbons. WEIZMANN, C. July 12, 1940, No. 8963. Convention date, Jan. 17. [Class 2 (iii)] Aromatic hydrocarbons having eight carbon atoms particularly styrene and ethyl benzene are prepared by passing butylene over a metallic hydrogenation and dehydrogenation catalyst at a temperature between 500‹-600‹C. preferably at atmospheric pressure. In an example butylene is passed through a steel tube containing reduced copper gauze heated to 700‹C. with a space velocity of between 0.1 and 0.05 litres of liquid butylene in the form of its vapour per hour per litre catalyst volume. The products consisted of ethyl benzene, and styrene, with some benzene and naphthalene. Specifications 291,137, [Class 2 (iii)], 343,116, 364,043, 369,351 and 412,933 are referred to.
Patent GB-1247645-A (GB)
Title: Bow substructures for launching of ships' hulls
IPC: B63B9/00
Filed: 1970-02-25
Abstract: 1,247,645. Launching cradles. STOCZNIA SZCZECINSKA IM. ADOLFA WARSKIEGO. 25 Feb., 1970 [27 Feb., 1969], No. 8969/70. Heading B7S. A buoyant launching cradle for supporting a ship's bow comprises a pontoon 4 with lateral arms 5 provided with cylindrical surfaces engaging corresponding cylindrical surfaces of sliding cradles 2 supported, in use, on launching ways 1. The pontoon upper surface is flat and has guides 7 for props 8, which are adjustable to fit various bows and are secured by turnbuckles 11. Cradles 2 are adjusted to the launching way widths and spacings by distance pieces 16. Stay ropes 17 and 20 secure the cradle to the ship. Rope 21 is used for removing the cradle after launching.
Patent GB-567916-A (GB)
Title: Improvements in or relating to rotary electric switches
IPC: H01H19/24
Filed: 1943-06-04
Abstract: 567,916. Snap - action switches. BROOKHIRST SWITCHGEAR, Ltd., MORREY, C., and THORNE, A. R. H. June 4, 1943, No. 8980. [Class 38 (v)] An operating member, actuated by a turnbutton, carries depending lugs 34 which, on rotation, compress leaf spring 38, the spring carrier 36 with associated moving contactor, being prevented from similar rotary movement as by engagement of one or other of the detents 39 with stops 43 on the casing, until released by action of a further lug 35 on the operating member. In a modification, the lugs 34 are replaced by studs of circular section and two oppositely-mounted leaf springs are provided. Several contactors may be provided on an extension of the central shaft to coact with further fixed contacts. Positive action is ensured if the spring breaks, by engagement of lug 35 in a recess of the spring carrier 36.
Patent GB-1391437-A (GB)
Title: Preparation of antibiotic compounds
IPC: C07D/
Filed: 1971-04-07
Abstract: 1391437 #-Amino-cephalosporins GLAXO LABORATORIES Ltd 17 March 1972 [7 April 1971] 8988/71 Heading C2C A process for 7-amino-cephalosporins comprises reacting a 7-acylamido cephalosporin acid with a phosphorus trihalide, e.g. phosphorus trichloride, in an inert organic solvent under substantially anhydrous conditions, contacting the resultant solution with an imide halide forming reagent, commingling the resultant reaction mixture with an imino ether forming compound and recovering the 7-amino-cephalosporin formed. The reaction with the phosphorus trihalide may be carried out at a temperature of between - 50 and + 65 C., preferably - 50 to 0 C. and may be carried out in the presence of an organic tertiary base, e.g. N,N-dimethylaniline or N,N-diethylaniline. The base may be used in an amount of up to 4 molar equivalents excess with respect to the cephalosporin. The imide halide forming compound may be phosphorus pentachloride and the temperature of the imide halide forming reaction is - 50 to + 25 C., preferably - 40 to -10 C. The reaction with the imide halide forming compound may be carried out in the presence of an organic tertiary base, e.g. N,N-dimethylaniline or N,N-diethylaniline. The molar ratio of the cephalosporin compound to the phosphorus pentachloride may be from 1 : 1 to 1 : 3. The imino ether forming compound may be an alcohol having 1 to 6 carbon atoms or an alkane diol having 2 to 4 carbon atoms. The imino ether forming reaction may be carried out at a temperature of - 50 to + 10 C., preferably - 40 C. The solvent may be a chlorinated hydrocarbon such as methylene chloride. The 7#-acylamido cephalosporin acid may be 3- acetoxy - methoxy - methyl - 7# - (5 - amino - 5- carboxypentanamido)ceph - 3 - em - 4 - carboxylic acid having the amino group protected, or a salt thereof or a 3-methyl-7#-phenylacetamidoceph-3-em-4-carboxylic acid or a salt thereof. The phosphorus trihalide may be used in an amount of 0-20 to 2-5 moles for each carboxyl group in a mole of the cephalosporin compound, preferably 0-4 to 1-2 moles.
Patent GB-346139-A (GB)
Title: Improvements in brakes for the wheels of aeroplanes
IPC: B64C25/48
Filed: 1930-03-21
Abstract: 346,139. Brakes. MESSIER, G. L. R. J., 29, Avenue LÚon Gambetta, Montrouge, Seine, France. March 21, 1930, No. 9058. Convention date, April 23, 1929. [Class 103 (i).] Fluid-pressure; shoes acting on drums.-B r a k e mechanism of the kind described in Specification 341,007, [Group XXXIII], for effecting differential braking of the wheels of an aeroplane for steering comprises a slotted beam K pivoted to the rods of pistons A, A<1> which transmit the pressure to the brakes hydraulically, the pressure being applied to the pistons by a lever I which passes through the slot in the beam and has a universal pivot at its lower end whereby the point of engagement of the lever with the beam may be varied to vary the ratio of the pressures on the pistons. The lever may be operated manually or by the skid as described in Specification 297,429, [Class 4, Aeronautics]. When the pistons are in the retracted position, orifices in the cylinders are uncovered by which liquid is supplied from the reservoir R. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modified construction in which the pressure is transmitted to the pistons through a roller which is adjustable by a separate member and is disposed between a beam connecting the piston rods and a second beam connected to the pressure applying lever. Further, expanding shoe brakes are described in which the operated end of one shoe is adjacent the pivoted end of another shoe whereby the frictional reaction on each shoe tends to increase the application of the shoe. As shown in Fig. 5 (Cancelled), shoes S<1>, S<2>, pivoted respectively at A<1>, A<2> on the fixed anchor plate are applied by hydraulic cylinders C<1>, C<2> carried by the plate. The pivoted ends of the shoes embrace the plate or are socketed therein to avoid twisting efforts on the plate. A similar arrangement of three shoes is also shown. This subject-matter does not appear in the Specification as accepted.
Patent GB-726588-A (GB)
Title: Improvements relating to recording in electric communication systems
Inventor: READ CHARLES BRUCE
IPC: B66B19/06
Filed: 1953-04-02
Abstract: 726,588. Recording-apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 4, 1954 [April 2, 1953], No. 9171/53. Class 106 (4). Recording-apparatus for an electric code communication system in which signal pulses are recorded on a continuously moving chart, comprises a stylus recurrently movable forwards and backwards along a path transverse to the direction of movement of the chart and arranged to be moved in steps along the path in response to successive signal pulses, whereby the overall transverse movement of the stylus occasioned by the sending of a code is a function of the number of pulses in the code. Such systems are used on board ship and in mines, and in the latter case the record may be superimposed on the chart of apparatus continuously recording the speed and direction of winding of the cage. As shown, a stylus 10 is carried by a pivoted member 9, whose shorter arm is urged to follow a cam 1 preferably through a roller 12. The cam 1 is rotated in steps through pawl-andratchet means 7, 3 each time a signal pulse causes energization of a solenoid 4 and the contour of the cam is such that the tip of the stylus moves a step along an arcuate path for each pulse. The time interval between the pulses of one code is very short compared with the interval between codes and the speed of chart movement may be chosen to ensure a space between the record of each code and need not be fast enough to leave any apparent space between the pulses of a code, the number of which is readily determined by the transverse length of the trace, being equal to the length of trace between the positions immediately before and after the receipt of the code plus twice the length of any extension beyond such positions. The chart may be marked with longitudinal lines to facilitate reading transverse lengths. Preferably the cam is in the form of a groove in a disc followed by means of a pin carried by the arm 9<1>. The cam may be so shaped that ten pulses cause a complete to-and-fro transverse movement of the stylus.