baber/WOPTO huggingface dataset:
Patent GB-948860-A (GB)
Title: ªÏ-amino-2-aryl-2-pyridylalkanamide derivatives
IPC: C07D213/56
Filed: 1962-05-16
Abstract: The invention comprises pyridyl-aminoalkanoic amides of the formula: <FORM:0948860/C2/1> wherein X is hydrogen or chlorine, Ar is a phenyl tolyl, xylyl, naphthyl, halophenyl, (e.g. chloro-fluoro-or iodo-phenyl) anisyl, dimethoxyphenyl or pyridyl radical, Alk is an ethylene or trimethylene radical and R1R2N- is a tertiary amino radical (alkyl)2 N-, wherein the alkyl group contains 3 carbon atoms, or a cyclic amino radical of the formula: <FORM:0948860/C2/2> m being 1 to 3 and n being 1 to 4; including acid addition and quaternary ammonium salts of these compounds such as the hydrohalide, sulphate, phosphate, sulphamate, citrate, lactate, maleate, malate, succinate, tartrate, cinnamate, acetate, benzoate, gluconate and ascorbate and the quaternary ammonium alkyl halide, aralkyl halide, alkyl sulphate, arylsulphonate, ethylene chlorohydrin, propylene chlorohydrin and alkenyl halide derivatives. The amides are prepared by hydration of the corresponding nitriles either with acids or bases. Pyridyl-aminoalkyl-nitriles of the formula: <FORM:0948860/C2/3> used as starting materials, are made by condensing the alkali-metal derivative of a nitrile Ar.CH2.CN with a halopyridine (optionally bearing a further chlorine substituent) and treating the resulting a -aryl-a -pyridyl-acetonitrile with an aminoalkyl halide R1R2N-alk-halogen.
Patent GB-267782-A (GB)
Title: Improvements relating to braces for personal wear
IPC: A41F3/02
Filed: 1926-07-29
Abstract: 267,782. Holdsworth, H. July 29, 1926. Braces.-Braces adapted to be worn under or over a shirt consist of cross-over straps 41 each provided at the back with two fabric loops 43 into which are inserted wire loops, Fig. 5, provided with a lower portion 22 to receive the shank of the button, a wider portion 24, through which the button is passed, and inturned hook ends 23 adapted to engage the loops 43. The front ends of the braces are left plain and are connected to claw fasteners consisting of a wire 45 bent at the centre to form a button engaging loop 46 and at the ends into hooks 47 which engage in the socketed ends of a claw plate 48, the ends of the loop being held together by the inturned ends 49 of a cross-bar 50 provided with a depending prong 51. To secure the fastener to a brace strap 41, the end of the strap is passed through the gap 52 between the claw edge 53 and the cross-bar 50, downwards between the wires 45, upwards and between the bar 50 and the first portion 41a of the strap, and is then impaled on the spike 51, the plate 48 being afterwards depressed. The prong may be dispensed with. When the straps are not of the cross-over type, a loop 43 is secured at their junction and the device shown in Fig. 6 secured thereto by means of hooked ends 27 of a wire member 28.
Patent GB-928187-A (GB)
Title: Improvements in or relating to thermionic valves
Inventor: ALDOUS WILLIAM HERBERT
IPC: H01J19/34
Filed: 1961-07-03
Abstract: 928,187. Thermionic valves. M.O. VALVE CO. Ltd. July 3, 1961 [May 30, 1960], No. 19035/60. Class 39 (1). In a thermionic valve, the anode 3 forms part of the envelope, and the grid 5 is spaced from the anode by a ceramic member 9, which does not form part of the valve envelope, and which has a thermal conductivity at least 0.1 watt/cm. ‹ C., so that cooling of the anode during operation cools the grid sufficiently to prevent thermionic emission therefrom. As shown, the anode is cooled by blowing air over a corrugated metal sheet 17 secured thereto. The grid 5 comprises a gold-plated copper sheet formed with parallel slots 7, and is brazed to two bars 9 of alumina-, magnesia-, or berylliabased ceramic. The bars 9 extend beyond the ends of the grid so that tags 13 extending from the corners of cathode 11 may be secured thereto, Fig. 2 (not shown). One end of heater 14 is secured to one of the tags 13. Grid 5 is provided with two leads 15 to reduce the inductance of the electrical connection thereto.
Patent GB-258234-A (GB)
Title: Improvements in or relating to arc-rupturing devices for electric circuit interrupters
IPC: H01H9/36
Filed: 1926-07-30
Abstract: 258,234. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Slepian, J.). Sept. 8, 1925, [Convention date]. Sparking, preventing. - Relates to means for extinguishing the arc in A.C. circuit-breakers, involving the provision of devices which so increase the de-ionization of the arc path that the arc cannot be supported. In the typical example shown, lifting the handle 28 opens circuit by toggle action, circuit being first broken at 1 and 2 then, with a wiping action, at 33, 34 and finally between the moving contact 19 and the spring- pressed stationary contact 20, which is connected to one bottom wall 41 of the arc shoot 40, while the contact 19, when fully open, abuts against the other wall 42. Any arc drawn between these contacts is blown by the coils 24 up into the shoot, which is divided by partitions 45, 46 into three sections. Perforated metal grids 51 extend from side to side of each section but leave room for the arc to play Fig. 2. The theoretical considerations involved are discussed at length, but. shortly, the effect is to cause each grid to become the centre of an non-ionized space. As shown in Fig. 4, the effect is heightened by putting a shunting resistance 85 across the first section, and a higher resistance 86 across the second, so as to increase the quenching effect of the arc which, by the partitioning of the shoot is in three consecutive parts. Numerous modifications in detail are described having for object, for instance (1) the prevention of the hanging of the arc in the shoot month, (2) ensuring slow travel along the grids, (3) restriction of the arc path to the grids. The pole shoes 55, 56, Fig. 2, diminish in thickness, as shown, or the upper parts are perforated to reduce the magnetic effect. Again, individual grids may be shunted by a high resistance, or successive grids joined in pairs by resistors. The space between the grids may be filled with hydrogen or, again, may be evacuated. In other modifications the moving contact passes through a space in the body of the grids themselves and in a further modification the arc is moved into the shoot by an air blast. It is expected that these means will obviate the necessity for immersing the breaker in oil, but such immersion is not precluded. Mercury switches.-In one form, the grids or barriers are shown applied to a reversible mercury switch.
Patent GB-400147-A (GB)
Title: Improvements in or relating to a method and apparatus for the manufacture of rubber strips
IPC: B29D99/00
Filed: 1933-07-05
Abstract: 400,147. Rubber strips. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter's Port, Guernsey.-(Assignees of Gammeter, J. R. ; 68, North Portage Path, Akron, Ohio, U.S.A.) July 5, 1933, No. 19052. Convention date, Aug. 6, 1932. [Class 70.] Rubber strip is made by depositing a film of a rubber-containing liquid such as an aqueous dispersion, on to a moving surface from between two walls at an angle to and substantially touching the moving surface. Rubber-containing liquid 11, Fig. 1, is picked up by a roller 12, and deposited on a travelling belt 18. The roll 12 has a peripheral groove 15, Fig. 2, with side walls 16, 17, which contact with the belt 18. Wipers 19 clean the sides of the roll and ensure a sharp edge to the strip. The film is carried through a chamber 23 where it is dried, and if desired vulcanized, and is led to a batch-up roll 32. A buffing roll 21 cleans the belt 18 before another layer is deposited. In a modification, liquid is fed to the groove 15 by a shoot.
Patent GB-687916-A (GB)
Title: Drilling machine
Inventor: WALES GEORGE FREDERICK
IPC: B23Q1/01
Filed: 1951-08-14
Abstract: 687,916. Drilling. WALES-STRIPPIT CORPORATION. Aug. 14, 1951, No. 19103/51. Class 83 (iii). A drilling machine comprises a table 22, a work-slide 23, and a tool-slide 26 mounted on a bridge 25, the slides being rectilinearly movable in directions at right-angles to one another. The work-slide is traversed by rack-and-pinion 50, Fig. 19, operated by hand wheels 24. The tool-slide 26 is traversed by a screw 44 with which half-nuts 43 are engaged by a handle 43, and is locked in adjusted position by clamps 42 when the half-nuts 43 have been released. The motor-driven drill is vertically-adjustable on a post 28. Exchangeable drill bushings 66 are also vertically-adjustable on the slide 26. To position a template for drilling when the co-ordinates of the holes are known, zero stops 40, 34 are first secured in V-grooves in the cutter and work-slides. The work-slide is then adjusted and clamped by employing micrometer length gauges 32 co-operating with a dial gauge 35. The second co-ordinate is marked out by adjusting the cutter-slide by similar means. For drilling holes in work from a template or a finished workpiece, the drill is first positioned correctly for drilling one hole in the work and an adjustable sighting head 56 is positioned and clamped over the corresponding point on the template. Thereafter, the head is positioned in turn over the other points. For drilling long narrow work, the work and template may first be bolted to a mounting plate which is then attached to the slide 23. Workpieces 77, 78, Figs. 14 and 15, having portions of a standardized pattern drilled therein may be mounted above a standardized pattern 90 and the remaining holes drilled therein. The workpieces 77, 78 are spaced by collars 76 and bushes 73 and secured by screws 80, 81. Alternatively, the work-slide 93, Fig. 19, may have pegs 91 representing part of a standardized pattern and the work be positioned by bushes 92. Two hardened and sharpened strips 63, Fig. 3, beneath the drill bush 66 remove the burr from the lower edge of each drilled hole as the work is slid along the table 22. U.S.A. Specifications 2,275,706 and 2,381,062 are referred to.
Patent GB-588618-A (GB)
Title: Method of and means for continuous casting of solid or hollow sections in ferrous metals
IPC: B22D11/047
Filed: 1944-10-05
Abstract: 588,618. Continuous casting-machines; casting processes ; moulds. ANDREWS, H., and JAMES & CO. (BIRMINGHAM), Ltd. Oct. 5, 1944, Nos. 19148 and 22760. [Class 83 (i)] Electricity, heating by.-A continuous-casting machine for producing cast - iron of predetermined properties comprises a hollow graphite die 16 to which molten iron is fed and means for heating the inlet end A and cooling the outlet end B of the die, and for continuously withdrawing the solid metal at such a rate, in relation to the temperature gradient of the metal along the die, that the metal is cooled at the required rate. The molten metal is supplied to a crucible 10, set in graphite or other refractory material 11 in a box, fed from cupola or mixer. The end A of the die is also set in the material 11. The crucible may be heated by a water-cooled highfrequency coil 17 and the end A by a coil 18 or by gas or oil. The end B is surrounded by a water jacket 19. The bar 22 may be withdrawn by rollers or draw chains 25 driven by a variable speed motor 31. Two or more dies may be arranged in the material 11 and be fed from one reservoir. The die may be long enough to support the solid metal until it has sufficient strength. The rate of cooling, particularly of molybdenum iron, after leaving the die, may be retarded by arranging a still-air chamber or one heated by flue gases from the gas or oil heaters. For malleable white iron, which may contain titanium, the casting leaving the die may be continuously annealed. The crosssection of the die may increase to correspond to the expansion of the iron on solidification. Travelling saws &c. may be used to cut the bar into lengths. By using a core hollow sections may be produced. In other modifications, the die is arranged with its axis vertical or inclined, the lower end being immersed in molten iron while the bar is withdrawn from the upper end. The method may also be used to form grey cast-iron with a low silicon content. austenitic iron free from cementite and containing chromium, molybdenum, tin, or other hardening element.
Patent GB-599859-A (GB)
Title: Improvements in shock absorbers
IPC: B64C25/60
Filed: 1945-07-26
Abstract: 599,859. Hydro-pneumatic shock-absorbers. KATZ, M. July 26, 1945, No. 19193. Convention date, April 14, 1942. [Class 108 (iii)] In - a hydraulic shockabsorber for aircraft comprising a hydraulic damping device and an elastic device, a member controls liquid flow into and from the chamber containing the elastic device by varying the total area of suitable openings so that liquid damping is maintained during the whole period of the landing impact, but is removed at the end of that period, while preserving the whole oscillatory movement of the shock absorber. In the construction shown, the shock absorber comprises telescopic tubes 1, 3 and a tube or mandrel 5 which forms an extension of the tube. 3 passing through a partition 18 which divides the tube 1 into a liquid space 12 and an air space 25. Grooves 33 provide a damping resistance to liquid flow between the tube 5 and the partition 18, which is proportional to the degree of shortening of the shock absorber. A sheath or sleeve 21, Fig. 2, is slidable between abutments 23, 23' on the partition 18, against the action of a spring 24 to uncover ports 30 to permit undamped flow from the space 12 to the space 25. An annular valve 14 damps flow from an annular space 11 between the tubes 1, 3 to the space 12. Operation.-Following takeoff of the aircraft, the tube 3 fully extends, and projections 28 on the tube 5 drag down the sleeve 21 into its lower' position, Fig. 2, to close the ports 30. Under the landing impact the tubes 3, 5 are forced inwards and damping occurs through the grooves 33 and ports' 32 in the partition 18. The sleeve 21 is maintained in its lower position against the spring 24 by the liquid pressure of the chamber 12 acting on a flange 31 of the sleeve 21. When the impact has been absorbed the sleeve 21 rises and opens the ports 30 to permit relatively free oscillatory movement on taxying of the aircraft.
Patent GB-478137-A (GB)
Title: Improvements in and relating to apparatus for automatic compression and expansion of volume range in electro-acoustic systems
IPC: H03G7/00
Filed: 1936-07-10
Abstract: 478,137. Automatic volume control. PAWLEY, E. L. E. July 10, 1936, No. 19234. [Class 40 (iv)] A system in which the volume range is compressed during transmission makes use of impedances which vary in non-linear fashion in accordance with the direct current flowing through them, an impedance of this kind being in shunt across the transmission path in the compressor and in series in the path in the expander, and the control currents being derived from the signal currents through a rectifier which is such that uniform compression and expansion is obtained. In the compressor, Fig. 1, one of the secondary windings of the output transformer 13 feeds through an amplifier 16 giving uniform amplification a bridge rectifier 17-20 which supplies direct current to a reservoir condenser 21. The latter is connected through an adjustable resistance 22 to a pair of shunt rectifiers 7, 8 and to a tapping on a balancing resistance 5 interposed between the secondary windings of the input transformer 1. If the bridge rectifier is such that the direct current is proportional to the square of the voltage applied thereto it is found that the output voltage of the compressor is proportional to the input voltage in decibels, the compression factor being one half, provided the resistance pads 6, 9, 10. 11 and the transformer ratios are suitably chosen. In general the compression factor is dependent on the gain of the amplifier 16 and on the non-linear law of the rectifier. In the expander, Fig. 2, the control is obtained from the input to the transformer 23 and the rectifiers 36, 37 controlled by the reservoir condenser 32 are in series in the transmission path and are in balanced circuits joined by tappings on balancing resistances 26, 30 associated with the input and output transformers. Additional resistance pads may be employed if desired. Since the effect of the compressor is to raise the relative level of the weaker signals, background noise tends to increase. The modification of Fig. 3 avoids this effect by the addition of a pair of rectifiers 38, 39 in series in the transmission path to attenuate the signals below a certain level. If one side of the path is earthed, the variable impedance may be constituted by a single shunt or series rectifier.
Patent GB-987271-A (GB)
Title: Breakwater for coast protection
IPC: E02B3/06
Filed: 1962-05-18
Abstract: 987,271. Breakwaters. S. A. S. ING GIANFRANCESCO FERRARIS & CO. May 18, 1962 [May 20, 1961], No. 19246/62. Heading E1H. A breakwater for coast protection comprises a submerged stepped structure on the sea bottom having at least one step spaced from the shore which has a riser 1 extending lengthwise of the shore and being 3 to 5 metres high and submerged so that the average depth of water above the riser at mean high tide level is at least twice the height of the riser. In the embodiment described the risers are built in prefabricated hollow blocks 3 of reinforced concrete which are coated with a water-proof layer. Each block is provided with manholes 4, vents 5 and a compressed air admission hose 5<SP>1</SP> together with a water opening 7 controlled by a manually or automatically operated valve 7<SP>1</SP> connected to a tube 6. The blocks may be sunk into position by filling with water or raised by evacuating water by compressed air. A tie 8 can be used to connect the blocks in an aligned relationship. Once a riser has been built the tread 2 is allowed to be filled in by the sea. The tread may be formed by the stagnant water behind the riser. The blocks 3 may be of trapezoidal cross-section. The face of the risers 1 may be divided into two or more differently inclined sections.
Patent GB-530771-A (GB)
Title: Improvements in automatic altimetric controls for internal combustion engines
IPC: F02D9/00
Filed: 1939-07-03
Abstract: 530,771. Fluid-pressure servomotor systems. SOC. GENERALE DES CARBURATEURS ZENITH. July 3, 1939, No. 19340. Convention date, July 5 1938. [Class 135] [Also in Group XXXVIII] In an altitude control for regulating the richness of the supply of combustible mixture to an internal-combustion engine through a servomotor, a follow-up connection is provided between the servomotor piston 6 and the loading-spring 15 of the barometric capsule 1, comprising a lever 18 acting at 22 on a lever 20 bearing at 24 on the spring. The piston 6 is connected by a rod 34 to a needle valve controlling the fuel supply to the carburetter nozzle, or to a valve controlling the action of the engine suction on the front chamber. A hand-operated connection to these valves is also provided. In a modification, an electric servomotor may be used wherein an electric motor operates the control through an endless screw, and is itself controlled by a switch or commutator actuated by the barometric capsule. Specification 495,307 is referred to.
Patent GB-1499766-A (GB)
Title: Manufacture of isonitrosoacetanilides
IPC: C07C239/00
Filed: 1975-05-08
Abstract: 1499766 Process for the preparation of isonitroacetanilides BASF AG 8 May 1975 [20 May 1974] 19368/75 Heading C2C The invention comprises a process for the preparation of isonitrosoacetanilides of the general Formula I wherein R<SP>1</SP> and R<SP>2</SP> are independently a hydrogen or halogen atom or a nitro, carboxyl or alkoxy group or an aliphatic hydrocarbon radical optionally substituted by one or more substituents which are inert under the reaction conditions in which an aniline of Formula II wherein R<SP>1</SP> or R<SP>2</SP> are as defined above, is reacted with chloral and hydroxylamine at a pH of 0À2 to 2À0 while adding a base. In the examples R<SP>2</SP> is a hydrogen atom and R<SP>1</SP> is either hydrogen or a 4-chloro or 4-methyl substitutent whilst suitable starting materials disclosed have Formula II wherein R<SP>1</SP>-R<SP>2</SP> are C 1-4  alkyl, nitro, C 1-4  alkoxy, CO 2 H groups, Cl or Br.
Patent GB-1183864-A (GB)
Title: Filters
IPC: B01D29/00
Filed: 1967-04-27
Abstract: 1,183,864. Filters. SOC. FIVES LILLECAIL. 27 April, 1967 [29 April, 1966], No. 19382/67. Heading B1D. An inward-flow filter element comprises a cloth bag 54 stretched over a perforate tubular support 20 and a movable end disc 32, which is moved away from support 20, against the compression of spring 42, to stretch and/or shake the bag, by reverse flow cleaning fluid from pump 12. The fluid is pulsed by a rotary valve 18 if the cloth is elastic or by a vibrating valve, at higher frequency, for inelastic cloth. In Fig. 1, support 20 is a metal tube and disc 32 is fast with a hollow piston 36 slidable on a cylinder 38 which is fixed to conduit 28. A valve 48 comprises a movable member 52 with a small central, orifice, which lifts to allow filtrate to flow through hollow stem 44 and conduit 28 to outlet 14 but falls to build up sufficient pressure difference in reverse-flow fluid passing through the orifice to extend piston 36 repeatedly. Tube 22 forms an empty space with conduit 28 to reduce the internal volume. In Fig. 2 (not shown) the bag is supported by perforate polypropylene washers (64), and end disc (32<SP>1</SP>) is moved by inflation of a flexible tube (76), in parallel with a valve (48<SP>1</SP>) similar to valve (48). A filtrate pump is located downstream of valve 14. In either embodiment, valve 14 could communicate with the downstream side of support 20 directly.
Patent GB-290071-A (GB)
Title: A process for transforming the fibres of the corchorus capsularis and such like products and derivatives into a product resembling wool
IPC: D01C1/02
Filed: 1927-07-21
Abstract: 290,071. Celli, P. July 21, 1927. Fibres, treating.-To produce fibres resembling wool, jute (corchorus capsularis) and like fibres are carded and then treated in a bath of concentrated caustic soda, e.g. at 30‹ BÚ. and at 25‹- 35‹ C., the reaction producing a gradual increase in temperature until there is a formation of water vapour. The fibres are subsequently passed through a bath of soap, rinsed, bleached and dried.