baber/WOPTO huggingface dataset:
Patent GB-1024807-A (GB)
Title: Emetine-like compounds, and a process for the preparation of emetine
IPC: C07D455/06
Filed: 1964-06-05
Abstract: The invention comprises racemic and optically active nor-cephaeline and racemic cephaeline, and a process for the preparation of emetine which comprises reducing an ester of formula <FORM:1024807/C2/1> where R represents an alkyl group, with an alkyl aluminium hydride in an atmosphere of an inert gas, condensing the resulting aldehyde with an amine of formula <FORM:1024807/C2/2> where R1 represents hydrogen or a methyl group, and O-methylating the compound of formula <FORM:1024807/C2/3> formed, if desired resolving the products thus obtained, and if desired converting the bases to their salts with mineral or organic acids.  The reduction is preferably carried out in an anhydrous organic solvent, at a temperature below -20 DEG  C. The condensation reaction is preferably carried out in alcoholic solution under a nitrogen atmosphere.  The O-methylation may be effected using diazomethane or a tertiary ammonium compound.  The novel compounds of the invention are intermediates in the process of the invention.
Patent GB-792895-A (GB)
Title: Improvements relating to hydraulic shock absorbers
IPC: B64C25/60
Filed: 1956-07-30
Abstract: 792,895. Hydraulic shock absorbers. BENDIX AVIATION CORPORATION July 30. 1956 [Sept. 26, 1955], No. 23496/56. Class 108(3) A hydraulic shock absorber comprises two relatively movable chambers A, B separated by a partition 28 in which an apertured tubular device 32 is slidable, the chamber A having a fixed volume and filled with fluid to a variable level, the chamber B having a variable volume but completely filled with fluid, the apertures in the device 32 being provided in the ends and sides so that the rate of fluid transfer through the device increases and then subsequently decreases. In the construction shown, the chamber A is defined by a tubular member 20 rigid with an airframe and in telescopic relation with a tubular member 22 defining the chamber B. On compression from the position. shown, liquid is forced from the member 22 through orifices 39 into the tube 32 and initially, through a single orifice 39a at the upper end of the tube 32 into the member 20. As compression proceeds, flow through the orifice 39a is augmented by flow through a progressively increasing number of orifices 39 on the upper side of the partition 28. Minimum restriction to liquid flow occurs when the number of orifices above the partition 28 is equal to the number below. Restriction progressively increases as the number of orifices 39 beneath the partition 28 decreases as the stroke continues.
Patent GB-438018-A (GB)
Title: Improvements in or relating to modulated high frequency circuit arrangements
IPC: H03B9/10
Filed: 1935-08-21
Abstract: 438,018. Valve generating and modulating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Aug. 21, 1935, No. 23515. Convention date, Aug. 21, 1934. [Class 40 (v)] Push-pull modulation is effected across the anodes of two valves, more particularly the split anodes 51, 52 of a magnetron M, by a valve R which is shunted across the anode voltage supply lines + Ea1 + Ea2. The effect of a modulating current applied at Tm varies the impedance of the valve R, and sets up voltages across impedances W1, W2 which, as shown by the arrows, are effectively in push-pull across the two anodes S1, S2 of the magnetron. Voltage-dropping resistances are inserted in the supply leads, either at W3 or W4 to provide the necessary potential difference across the valve R, whilst maintaining the same mean operating voltage on the anodes of the magnetron. The modulated output from the magnetron is tuned by a Lecher-wire bridge B.
Patent GB-201790-A (GB)
Title: Improvement in spring drive mechanism
IPC: F03G1/00
Filed: 1922-08-30
Abstract: 201,790. Zwarich, A. C. Aug. 30, 1922. Spring power-storing mechanism.-A spring motor consists of a fixed shaft 2 carried by a frame 1 and a rotatable frame carrying four spring - rotated drums 18 engaging fixed gears 3 on the shaft 2. The springs are separately tensioned by handles 15 and gears 16, 17 acting on the shafts 11 to which the ends of the springs are secured. Weights 13 are suspended from the winding shafts 10 and carry spring-pressed pawls 14 which as the frame 5, 6 rotates partially rewind the springs. The device transmits power through the gear 22. A brake &c. 21 is provided.
Patent GB-791250-A (GB)
Title: A sofa bed with automatic operation
IPC: E21B33/12
Filed: 1955-08-16
Abstract: 791,250. Bed-settees. UNITED STATES BEDDING CO. Aug. 16, 1955 [Sept. 2, 1954], No. 23612/55. Class 52(2) In a bed-sofa comprising a bed-frame pivoted at 26 to a sofa-frame and consisting of sections 14-17 pivoted end to end. the bed-frame is folded and unfolded by power means e.g. hydraulic cylinders. As shown, to fold the bed-frame from the position of Fig. 1 to that of Fig. 2, a motordriven pump supplies fluid to a manifold 76, from which pressure is transmitted through pipe 80 to the base of a cylinder 60 pivoted to inner intermediate section 16 and provided with a piston rod 63 pivoted to outer section 14. Resulting projection of the rod 63 causes sections 14, 15 to move to the position of Fig. 2, legs 42 being retracted automatically and a pin 47 carried by levers 48, 49 being moved adjacent a notch 55 in a bell-crank 31. Thereafter, pressure fluid is supplied from manifold 76 through pipe 81 to the base of a cylinder 66 to extend the piston rod 69. This swings a link 71 which rotates a lever 27 to move the parts into the position of Fig. 3, the bell crank 31 being rotated anti-clockwise to retract further legs 39 by links 37 and to cause notch 55 to take over pin 47 to hold the frame in folded position. To unfold the bed-frame, pump 72 supplies pressure fluid to manifold 83 from which it flows to the outer ends of cylinders 60, 66 through pipes 87, 85. Because pin 47 is engaged in notch 55, cylinder 66 will be actuated first to move the parts to the position of Fig. 2 and then cylinder 60 will be actuated to establish the article in bed-forming position.
Patent GB-725777-A (GB)
Title: Feed adjusting means for sewing machines
IPC: D05B73/00
Filed: 1953-08-27
Abstract: 725,777. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Aug. 27, 1953, No. 23669/53. Class 112. A feed-advancing lever which extends through a slot 21 in a sewing-machine frame and is pivoted at 19 on the frame about an axis normal to the opposed and parallel side walls of the slot, is frictionally maintained in adjusted position relatively to the slot by means of a U-shaped member 31 having a base 33 provided with an aperture through which the lever extends, and two opposed legs 34 which extend from the base and are arranged substantially parallel to the axis of said aperture for bearing resiliently against the opposed walls of the slot. The lever, which regulates a feed-advance mechanism of the kind described in Specifications 415,987 and 415,988, is mounted in the column 2 of the machine and is connected by a link 17 to a link 9. The latter, which is adapted to rock a feed-advance shaft 7, has a sliding connection with a rod 11 carried by a bracket 13 pivoted at 14 and rocked by means of an eccentric 16 carried by a rotary shaft 3. The front portion of the lever is in the form of a hand piece 20 having a cylindrical shank embraced by a sleeve-like portion 32 extending from the base 33, and a reduced end-portion 28 extending into a longitudinal bore in the main portion of the lever and hold releasably therein by a set screw 26. The latter, together with a set screw 27, also secures upon the lever a block 25 having a V-shaped notch 29 which co-operates with a screw 30, threaded into the column, to limit the movement of the lever.
Patent GB-706938-A (GB)
Title: Improvements in or relating to the hydroforming of hydrocarbons
IPC: C10G35/14
Filed: 1951-10-11
Abstract: <PICT:0706938/IV (b)/1> Naphthas are continuously hydroformed in the presence of a fluidized catalyst circulating between a reaction and a regeneration zone, the reaction product being separated into liquid, and a gas stream, part of which stream is recycled to the reforming zone and the remainder supplied to a light ends recovery zone, the catalyst being stripped with an inert, non-combustible stripping gas in a separate stripping zone prior to its entry to the regeneration zone, a mixture of stripping gas and volatile combustibles being withdrawn and added to the gas stream at a point subsequent to that at which recycle is taken off and prior to the light ends recovery zone.  The inert gas may be flue gas or nitrogen.  Preferably, the spent catalyst is first stripped with part of the recycle gas stream. Naphtha and hydrogen-rich gas is fed to reactor 15, regenerated catalyst in an amount of 0.5-6 lb./lb. naphtha being added from standpipe 11 to form a dense phase fluidized mass.  Reaction conditions may be 900-1000 DEG  F., 100-500 p.s.i.g., and 0.1-1 lb. oil/lb. catalyst/hr.  Gaseous products separated in 29 are in part recycled via lines 46, 50. Part of this stream may be fed by lines 58 to space S of the reactor to strip catalyst which is falling therein. The catalyst then passes by line 60 to stripper 62 and is fluidized by inert gas entering at 66 at 400-1000 DEG  F.  The residence time may be 1-20 minutes.  The gases leaving by line 72 mix with the gases from reactor 15 in line 35.  Catalyst leaves by standpipe 74 and is fluidized in regenerator 78 by air introduced by lines 76, 77. Flue gases leaving at 81 may be used as stripping gas in stripper 62. Where insufficient hydrogen is produced, the gases from reactor 15 are treated to remove more of the heavier hydrocarbons and hence increase the hydrogen concentration.
Patent GB-442886-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/26
Filed: 1934-08-17
Abstract: 442,886. Safety razors. SCHMIDT, A., 71, Jermyn Street, London. Aug. 17, 1934, No. 23766. [Class 30] In razors fitted with rings adapted to receive a ribbon blade, the blade casings 2 are integral with the handle 1 and are located one on each side thereof, they are also integral with the guard 4 over which a presser plate 8 is removably mounted. The ends of the blade 9 are attached to rings 10, 11 adapted to be mounted for rotation on stub shafts 17 on the casings 2, the winding - up ring 11 being held against reverse rotation by a ratchet 25, 26 and the other ring 10 being free. The blade is held down on the guard 4 by a presser plate 8 having ears 8<a>. The rings are mounted in housings 13 having covers 16, 16<a> carrying hollow shafts 15, 24, adapted to engage over the stub shafts 17 on which they are retained by springs 15<b>. The shaft 24 is square and supports the ring 11. A fresh cutting edge is therefore obtained by turning a knob 23<a> pinned to the shaft 24, reverse movement being prevented by the ratchet. A vernier 27 on the winding on housing cover 16<a> in conjunction with studs 28 indicates the amount of blade taken up.
Patent GB-807738-A (GB)
Title: Improvements in or relating to radar systems
IPC: H04B1/66
Filed: 1956-08-01
Abstract: 807,738. Television. SIEMENS & HALSKE A.G. Aug. 1, 1956 [Aug. 2, 1955], No. 23770/56. Class 40 (3). [Also in Group XL (c)] For transmission to a remote indicator a recorded radar screen image is periodically scanned, a signal pulse being produced whenever an image point is scanned the scanning beam thereafter being suppressed for a time after which it continues scanning from a point immediately after the point at which it was suppressed, the image being reconstituted at the remote indicator from the signal pulses. In the embodiment described radar video signals are stored in plan position indicator form on screen S and are read off in a raster of decreasing concentric circles produced by quadraturephase oscillations of frequency f via modulator 3 which steps down the oscillation amplitudes by one line every time step-voltage generator 14 receives a pulse from " north-marking " generator 4, which produces a pulse for every beam rotation, via suppression stage 5. Unit 14 includes a counter which with synchronizing pulse generator 15 provides for frame-synchronizing pulses. When an image point is encountered the signal pulse from amplifier 6 causes generation of a blocking square wave in unit 7 and this wave suppresses the scanning beam for one reduction plus the image time and also disables suppression stage 5 so that no northmarking pulse passes. The blocking wave is differentiated in unit 8 and causes electronic switch 10 to open and pass a pulse, produced from a saw-tooth wave, of frequency #, generated in unit 9 triggered by a north-marking pulse from unit 4, to storage device 11 the amplitude of the pulse passed to the latter thereby being indicative of the image point's azimuth. The stored pulse is scanned by device 12 and passed to mixer 13, and is erased in device 11 when the next north-marking pulse generated passes to device 12. The signal pulses are mixed with the synchronizing pulses which are differentiated therefrom by greater amplitude. The range of an image point is given by the number of line synchronizing pulses between the corresponding image signal and the preceding frame synchronizing pulse. If there are several image points on a circle, blocking voltage generator 7 causes this circle to be repeated until the last image point in it has been transmitted. At the conclusion of a raster, the output voltage of modulator 3 is restored to its maximum amplitude. The output signals are passed before transmission through a low-pass filter. At the receiver the synchronizing pulses, separated by amplitude selection, synchronize a deflection generator. Each signal pulse is stored so that it is available until the receipt of the next one and comparison of the amplitude of the stored pulse with a sawtooth voltage supplies a pulse the distance of which from the north-marking pulse corresponds to the image azimuth and this pulse modulates the recording beam.
Patent GB-480116-A (GB)
Title: Improvements in steam, hydraulic and like packing
IPC: F16J15/32
Filed: 1936-08-31
Abstract: 480,116. Piston packing; stuffing-box packing. TUCK & CO., Ltd., and WEIR, J. S. C. Aug. 31, 1936, No. 23776. [Classes 122 (i) and 122 (v)] A fabric packing b of U- section is provided with a flexible reinforcing strip d of rubber, fabric, &c. having vertical grooves f to admit pressure fluid to force the lip of the packing b against the working surface. The grooves f lead into a, continuous groove in the face of the strip d. Both packing and strip are made in continuous spiral form.
Patent GB-1474264-A (GB)
Title: Direct alpha to x phase conversion of metal containing phthalocyanine
IPC: C09B67/50
Filed: 1974-05-29
Abstract: 1474264 X-polymorph of metal-containing phthalocyanine XEROX CORP 29 May 1974 [4 June 1973] 23804/74 Heading C4P [Also in Division G2C The X-polymorph of a metal-containing phthalocyanine is obtained by at least partly converting the corresponding alpha polymorph by heating at a rate of at least 10 C. per minute to any temperature in the range 220 to 450 C., said alpha polymorph being confined during said heating so as to preclude substantial evaporation thereof and being on a substrate and having an average thickness up to 1400 . The alpha polymorph can be in the form of a substantially continuous layer and can be binderless. The polymorph can be confined between confining surfaces which contact the said polymorph. At least one surface may be a quartz surface. The substrate on which the polymorph is deposited may be a quartz substrate or it may be electrically conductive, e.g. an aluminium, brass, chromium or metallized plastics substrate, or tin oxide coated glass or plastics films, e.g. poly-(N-vinylcarbazole).  The X-form of the metal phthalocyanine can be used as the photoresponsive medium of an electrophotographic imaging member.
Patent GB-421752-A (GB)
Title: Improvements in and relating to a device by which a shaft or body rotating not only about its own axis but also about another axis is so affected that its rotation aboutthe firstmentioned axis is prevented
IPC: F16H33/16
Filed: 1933-08-28
Abstract: 421,752. Utilizing inertia to obtain movements in machinery ; variable-speed gearing. IVERSEN, P. A. SCOTT-, Strandnejen, Snekkersten, Denmark. Aug. 28, 1933, No. 23874. [Classes 80 (ii) and 80 (iv)] [See also Group XXIX] A shaft or body rotating about an axis B is allowed to rotate on its own axis A, or is held fast thereon by two mutually displaceable mass portions m, which are subject to competing centrifugal effects due to their rotations about the axes A, B respectively. As the speed of rotation of the body about the axis B increases, the weights fly out to the position shown in Fig. 2, so that the body L is held stationary on its axis. The inner weight may carry a nose to lock it to a member fixed on the axis A. The masses may be slidably arranged in two arcuate tubes, or in a single tube, where they are pressed apart by a spring. Alternatively, the masses may be connected by pivoted arms to the shaft A. The masses may also comprise liquid or powder in a cylinder b, Fig. 7, divided by a partition V. When the cylinder b is rotating, the liquid or powder is evenly distributed as shown, but when the centrifugal force about the axis B preponderates, it collects at one side of the cylinder. A modified form comprises a drum with internal curved blades. In the arrangement shown in Fig. 15, gears 3, 4 are connected to each other and to a bracket 9 carrying weights m slidable on a rod 10, and the whole is rotatable on a crank 2 connected to the driving shaft 1. The gears 3, 4 engage respectively a gear connected to the driven shaft 6 and a gear 7 on a sleeve 8 which is prevented from rotating backwards by a ratchet and pawl. When the driving shaft 1 is accelerated, while a heavy load is applied to the driven shaft 8, the wheel 4 rolls round the wheel 7, and the wheel 3 drives the wheel 5 and shaft 6 forwardly at a reduced speed. If, as for example in motor vehicles, the shaft 6 may over-run, the velocity of rotation of the weights m about the axis A will then be reduced, so that both weights go to one end of the rod 10 owing to the rotation about the axis B. The gears 3, 4 are thus held rigid on the shaft 2 and the whole gear rotates solid. Increased load on the shaft 6 causes the rotation of the gears 3, 4 to begin again. In a further form, a planetary centrifugal device similar to 1, 2, 4, 9, 10, m, Fig. 15, is arranged between the driving and driven shafts of a F÷ttinger coupling to give a solid drive above a certain speed.
Patent GB-488765-A (GB)
Title: Improvements in regenerative flue structures
IPC: F28D17/02
Filed: 1937-09-01
Abstract: 488,765. Regenerators. CORNING GLASS WORKS. Sept. 1, 1937, No. 23937. Convention date, Oct. 6, 1936. [Class 51 (i)] In a regenerator comprising a number of columns arranged in rows, the columns are spaced apart by bricks the ends of which are in abutting relation to the sides of the columns. Each column comprises bricks 11, Figs. 1 and 3, provided with projections 15 on all four of its sides and bricks 12 which have projections 15 and recesses 16 on two of its sides to receive the ends of the spacing bricks 13, 14. The contacting faces of the bricks are provided with projections and recesses at 17. Fig. 4 shows a modification in which the projections 15<1> on the sides of the bricks are arranged obliquely, the projections on one brick being in alignment with the spaces between the projections of an adjacent brick.
Patent GB-406731-A (GB)
Title: Improvements in moulds for chocolate and like substances
IPC: A23G1/21
Filed: 1932-08-26
Abstract: 406,731. Moulds for chocolate &c. AMESBURY, A. H., 75, Beaufort Road, St. George, POWELL, A. W., 66, Shaftesbury Avenue, Montpelier, and FRY & SONS, Ltd., J. S., 25, Union Street, all in Bristol. Aug. 26, 1932, No. 23954. [Class 87 (ii).] A mould, adapted to produce two separate hollow articles in line with one another and having a common longitudinal axis, comprises two complementary mould parts 1, 2 adapted to be secured together to form a completely closed mould, each part being provided with a knife-edge flange 9, 10 which is located in a plane at right-angles to the longitudinal axis of the mould and serves to separate or aid the separation of the two articles after moulding. The two mould parts 1, 2 may be connected by a hinge 3 and provided with a fastening means comprising a ball 5 and spring loop 6. A quantity of liquid chocolate is first placed in the mould which is then closed and revolved to spread the chocolate and finally cooled to solidify it.
Patent GB-1477854-A (GB)
Title: Stacking apparatus
IPC: B65H29/30
Filed: 1975-05-13
Abstract: 1477854 Sheet stacking EUROPEAN PROFILES Ltd 13 May 1975 [30 May 1974] 23981/74 Heading B8R Sheets 1 containing ferrous material are cut to length by shears 2 and moved by belt 3 adjacent a magnetic rail 5 which supports the sheets 1. When the trailing edge of a sheet 1 passes photo-detector 10, 11 pneumatic cylinder 7 is actuated to push the sheet 1 away from the rail 5 to fall onto a stack 9. Piston 12 levels the stack 9. In another embodiment rail 5 may be electromagnetic and release of the sheet 1 produced by switching the current off.
Patent GB-895575-A (GB)
Title: Improvements in or relating to cutlery and other cases
Inventor: GREAVES CHARLES GEOFFREY TURTO
IPC: A45C3/00
Filed: 1957-07-29
Abstract: 895,575. Cutlery &c., cases. GREAVES & SON (CASEMAKER) Ltd., E. July 28, 1958 [July 29, 1957], No. 24001/57. Class 18. A case for cutlery comprises a body 10 and a lid 11 provided respectively with removable inserts 13, 14 having racks 15, 16 for knives, forks or spoons. The inserts are lined with suitable material and are retained in the case by resilient cushion strips 17, 18. The lining may extend loosely over and conceal the hinges 12 between the box and the lid. The lid may have grooves in which the insert is removably supported.
Patent GB-599571-A (GB)
Title: A sequentially operating electrical switching arrangement
IPC: H01H7/08
Filed: 1945-09-18
Abstract: 599,571. Switches held set and freed mechanically. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., DEELEY, A. R., and PRITCHARD, R. S. Sept. 18, 1945, No. 24156. [Class 38(v)] In a switching-device actuated by impact with water, a pair of contacts A and a clockwork timing-mechanism N controlling a pair of contacts B, are accommodated within a water-tight compartment X of an open-ended tube Y, and are actuated by a rod C which passes through the end of a compressible spring-bellows D to which it is attached with a water-tight joint. The device has guiding-vanes so that when dropped into water, a hinged-plate H moves inwardly against a spring G or a rubber cushion, so as to disengage a projection M from a latch L, which is then withdrawn by a spring-blade J, and thereby allows the bellows D to expand and move the rod C from a stop E, to close the contacts A and release the mechanism N, which after a pre-determined time closes the contacts B. The hinged-plate H may be ejected by the spring G on impact. Accidental operation during handling is avoided by a removable pin, Fig. 3 (not shown), which engages the compressed bellows.