baber/WOPTO huggingface dataset:
Patent GB-740010-A (GB)
Title: Electrical phase-shift testing equipment
Inventor: COOPER CHARLES WILLIAM
IPC: G05D3/14
Filed: 1953-02-26
Abstract: 740,010. Phase shift and frequency response measurements. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 24, 1954 [Feb. 26, 1953], No. 5437/53. Class 37. Apparatus for testing an electrical system for phase shift comprises a carrier frequency oscillator 1 exciting the rotors of modulating biphase synchronous generators 2, 3 and 4 (wherein 2, 3 denotes a single machine with quadrature stator windings), which rotors are driven by a known displacement - velocity servomecha- .nism 5 to energize demodulators 6, 7, 8 producing a quadrature signal energizing windings BB of dynamometer phasemeter 9 over linear push-pull amplifier 10, and reference signals respectively energizing phasemeter windings AA perpendicular to BB over linear push-pull amplifier 11 and a low output impedance amplifier 14 exciting the system 15 (e.g. a servosystem) under test, whose output is fed through amplifier 13 of variable calibrated frequency response to a linear push-pull amplifier 12 energizing the phasemeter moving coil C; the amplifier 13 enabling the gain/frequency characteristic of the test system to be determined and a signal remaining constant with frequency to be fed to the moving coil, which is suspended without restoring torque in the field of fixed coils AA, BB and is shown to assume an angular position indicating a phase shift of the test system at the fundamental operating frequency irrespective of frequency distortion.
Patent GB-724687-A (GB)
Title: Improvements in or relating to luggage bag
IPC: B60R9/055
Filed: 1953-02-27
Abstract: 724,687. Luggage holders for vehicles. HANSEN AKTIESELSKAP, H. I. Feb. 27, 1953 [Feb. 27, 1952], No. 5522/53. Class 103 (2). A luggage bag for use in a frame 2 on top of a motor car comprises a tarpaulin bag 3 having folds 3a in its top surface to allow enlargement and closed along two or three sides by sliding clasp fasteners 4, 5. The bag is secured to the frame by straps 8 and may be locked by padlocking the latches of the sliding clasp fasteners together and to the rail 9 at the corner 10. A waterproof cover 6 is sewn to one end of the bag and is secured over the bag by straps 7. When not in use the bag is rolled inside the cover 6 and stowed away.
Patent GB-862686-A (GB)
Title: A bench-type multi-purpose machine tool
IPC: B23Q37/00
Filed: 1958-02-20
Abstract: 862,686. Multi-purpose machine-tools. FORSTER, E., and JAKOBLITS, S. Feb. 20, 1958 [Feb. 20, 1957], No. 5577/58. Class 83 (3). A lathe adapted for boring, milling, &c., comprises a base plate 1, a fixed bed 2 on the plate 1, a pivoted bed 3 having a pivot pin 4 adapted to be inserted in the plate, and a saddle 8, the top surface of parts 2, 3 being at the same level. A headstock 5 supporting a motor (not shown) for driving its spindle 7 is movable along the part 3 by a screw 6. A tailstock 11 is provided, and a screw 10 for traversing the saddle, which supports a cross-slide 9. For taper turning work (Fig. 4, not shown), held in a chuck on the spindle 7, the headstock is swivelled to the angle of taper (Fig. 3, not shown), and the tool traversed by movement of the saddle. The end of the work may be faced by feeding the slide. A parallel portion may be turned by traversing the headstock. To adapt the lathe for vertical turning, the headstock is attached to a vertical web 13 on the plate 1, Fig. 5, and used as a driving-unit for a turntable 28, which replaces the bed 3. A stub shaft on the table drivingly engages a hollow shaft 16 which formed the bearing for pin 4, and carries a pulley 15 connected by a belt 32 to a shaft 17. A shaft 18 is coupled, by gears 29, 30, to shaft 17, and the headstock positioned to drive either shaft, through a slotted and screw-threaded sleeve engaging pins on the shaft, depending on the direction of rotation desired for the table. An attachment 21, 22, 24 is mounted on the crossslide, and the bed 3, adapted to support a tool 27, is mounted by its pin 4 in an opening 25 in the adjustable block 24. Boring and milling.-For this use the pin 4 of the bed 3 supporting the headstock is clamped in the opening 25 of the attachment, which is mounted (not shown) by its end 23, in an opening 12 in the plate 1. The tool is carried by the spindle 7, and the work mounted on the slide 9. Milling gears.-A support for the blank 35, Fig. 6, and an index plate 34 replace the turntable 28, Fig. 5, in the shaft 16, and the headstock 5 replaces the tool mounting on the bed 3. The top part of the headstock is pivoted through 90 degrees to bring the spindle 7 into the horizontal plane, but the bed 3 may be inclined to the vertical, offsetting the cutter 38 for use in milling helical gears. A handle (Fig. 7, not shown), rotates the shafts 17, 18 for indexing the blank.
Patent GB-549676-A (GB)
Title: Improvements in or relating to electric oscillation generators and amplifiers
IPC: H03B9/01
Filed: 1941-04-30
Abstract: 549,676. Valve generating circuits ; electron multipliers. STANDARD TELEPHONES & CABLES, Ltd., BARNARD, R. M., and COOPER, A. April 30, 1941, No. 5601. [Classes 39 (i) and 40 (v)] In an ultra high frequency generator means are provided to stabilize the amplitude of the oscillations generated and an electron multiplier valve is used with the oscillating circuit connected to one of the multiplying or secondary emitting electrodes. The multiplying electrodes may be spaced apart from the source of electrons to reduce the heating and so permit the interelectrode capacities to be reduced by the use of electrodes of small physical dimensions. The dimensions of the multiplying electrodes may progressively increase with their distance from the cathode. Fig. 8 shows a valve construction in which an extra collector 11 and a tubular focusing electrode 10 are provided to permit spacing from the cathode. Fig. 3 shows an arrangement in which a rectifier W associated with the output controls the bias of an auxiliary valve V1 and thus the voltage applied to electrode 3 to stabilize the amplitude. Alternatively amplitude control may be effected by applying the rectified output voltage as bias to the control grid 2, Fig. 6 (not shown). A central aperture in plate 3 serves to concentrate the electron stream which strikes a coated perforated plate 3a to produce secondary emission. Feedback is taken from the electrode 3a through blocking condenser K and resistance RIO an impedance Z producing appropriate phase difference between electrodes 3 and 3a. Alternatively a phase reversing valve may be used to feed voltage from the electrode 3a to the control grid 2, Fig. 4 (not shown). Fig. 5 shows an arrangement where electrodes 3, 3a, 4, 4a are brought out separately so that tuned circuit L2, C2, L3 is connected at three points as in a triode oscillator electrodes 3a and 4 being connected by blocking condenser K and acting as cathode. This arrangement is particularly adapted for very high frequencies when the inductances: L2, L3, may be replaced by transmission lines which are short-circuited at the remote end and of= appropriate length. Amplitude control is effected by the: valve V1 in parallel with the blocking condenser K. In a modification, Fig. 6 (not shown), a tuned circuit may be connected in series with the multiplying electrode and an impedance in series with the collector electrode to produce appropriate phase between these etectrodes to give a dynatron oscillator. In this arrangement the stabilizing valve is connected in parallel with the collector electrode-cathode. circuit.
Patent GB-803344-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J23/24
Filed: 1955-02-24
Abstract: 803,344. Travelling-wave tubes. SIEMENS & HALSKE A.G. Feb. 24, 1955 [Feb. 24, 1954], No. 5606/55. Class 39(1). The delay line, preferably a helix, of a travelling wave tube has associated therewith a body composed of at least two different solid materials or at least two different forms of the same solid material having different electrical and/or magnetic properties wherein the composition of the body and hence at least one of its electrical and/or magnetic properties. Varies periodically in a direction parallel to the axis of the slow wave structure in such a way as to impart band pass filter characteristics to the slow wave structure. The variation in composition can be continuous or discontinuous. The variations may be in the values of dielectric constant, electrical conductivity or density. The body if of dielectric material is preferably of ceramic or quartz to which one or more conductive substances can be added, and if electrically conductive is preferably of high conductivity material such as copper or silver. Alternatively the body may be of semi-conducting material. The periodic variations in composition may be such that the characteristic impedance varies periodically along the axis, e.g., if ferromagnetic material is used for the body. In addition to periodic variations in composition the magnitude of a dimension perpendicular to the axis and also therefore the distance from the axis may vary periodically either continuously or discontinuously. The helix can be between the electron beam and body and in this case the body preferably supports the helix. The helix can be cylindrical or flat; if flat the body is on one side of the helix and the electron beam passes along the other side. If the body is of dielectric material it can be coated or mixed with lossy material, e.g. carbon. In the drawing the cylindrical body 5 is made up of rings of alternately different materials, the characteristic impedance varying periodically. The delay lines are suitable for use in travelling tubes for frequency modulation systems. A prior art dispersive helix having periodic variations in pitch is referred to.
Patent GB-415433-A (GB)
Title: Improvements in or relating to the conveyance of goods through furnaces and the like
IPC: F27B9/20
Filed: 1933-02-24
Abstract: 415,433. Conveying furnace charges. SMALLWOOD, A., and FALLON, J., British Mills, Cornwall Road, Smethwick, near Birmingham. Feb. 24, 1933, No. 5640. [Class 51 (ii).] In a step-by-step conveyer for furnaces comprising two sets of alternating moving beams a, a<1>, the beams rest freely on sector-shaped supports f, f which are oscillated by rocking-shafts g, g<1> in accordance with the forward and backward movements of the beams and are adapted to impart rising and falling movements alternately to the respective sets of beams. Arms h, h<1>, secured to the shafts g, g<1>, are oscillated through connections d, o<2>, p, and e, o, o<1>, p<1> from the rods c, c<1> which effect reciprocation of the beams, while the shafts g, g<1> themselves are mounted in balanced pairs at the ends of rocker-arms i oscillated about fixed shafts by a rod k through connections l, l<1>, m. The beams a, a<1> are cooled by internal water tubes q and are formed, as shown, with projecting ribs for engagement in co-operating grooves in the supporting sectors f, f<1>. Specification 403,976 is referred to.
Patent GB-271941-A (GB)
Title: Improvements in or relating to the conveyance of powdered or pulverulent substances
IPC: F23K3/00
Filed: 1926-03-02
Abstract: 271,941. Procter, H. A. March 2. 1926. Pneumatic conveyers.-In means for conveying powdered or pulverulent substances of the kind in which the substance after being aerated and stirred or agitated is pumped through a pipe, air or other gas under pressure is admitted at one or more points to the pipe leading from the delivery side of the pump and into the delivery side of the pump casing. The rotary pump c is preferably of the type in which slidable blades c<1> are maintained in contact with the casing by centrifugal force. Material passes from a hopper a to the pump c through a pipe b near the inlet of which is arranged an agitator f and the mouth of a pipe e through which air is admitted to aerate the material. A pipe d conveys the material from the pump to a storage receptacle or to a mixing box d<1> from which it is conveyed by air under pressure delivered through the pipe B<1> to a burner B. Air from a compressor J is admitted to the pipe d by pipes g, h. The supply through the pipe g is controlled by a valve k and may be intermittent. A pipe l connects the pipe g to the delivery side of the pump casing. A pipe n leads from the pipe d to the hopper and permits the cleaning of the pipe d when the pump is stopped.
Patent GB-646911-A (GB)
Title: Improvements in and relating to insecticidal compositions
IPC: A01N29/06
Filed: 1945-03-09
Abstract: An insecticidal and soil sterilizing composition comprises, in association with a non-solvent diluent, benzene hexachloride made by treating benzene with chlorine in the presence of a catalyst which either forms a compound with chlorine or is a compound of chlorine such compound being one which does not liberate chlorine under the conditions of the reaction; or benzene hexachloride which is in a very finely divided form having a melting point of substantially 120 DEG C and which is soluble in benzene.  The diluent may be talcum, infusional earth, precipitated sulphur, or a liquid in which benzene hexachloride or a solution thereof, e.g. in a hydrocarbon, is dispersed.  An emulsifying agent such as a fatty alcohol or soapy water may be used.  Specification 646,917, [Group IV (b)], is referred to.
Patent GB-452512-A (GB)
Title: Improvements in or relating to preheating carbonaceous materials prior to destructive hydrogenation and like conversion processes
IPC: C10G1/06
Filed: 1935-02-25
Abstract: In processes for the thermal treatment of carbonaceous materials, e.g. destructive hydrogenation, cracking, destructive distillation, the initial materials are preheated by supplying to the hot reaction products which have left <PICT:0452512/III/1> the reaction chamber further heat by mixing therewith a heated normally-liquid medium having a high heat of vaporization and then bringing the products thus further heated into indirect heat exchange with the initial materials.  Twenty tons per hour of a tar are pumped together with 30,000 cubic metres per hour of hydrogen through two heat regenerators in series and thus heated to 425 DEG  C. and are introduced into two reaction vessels in series. The products at 425 DEG  C. pass to a separator where 2 tons per hour high - boiling constituents are removed.  To the vapours and gases leaving the separator is added 1 ton steam superheated to 450 DEG  C. and maintained at a pressure above atmospheric and the mixture is used to preheat the initial materials to 425 DEG  C.  Carbonaceous materials and hydrogen supplied through lines H1, H2 are preheated in heat-exchangers A1, A2 and then flow through reaction chambers B1, B2 to a separator C.  The hot vaporous products pass along a line E where they are mixed with the extraneous heating medium supplied through a line G, the heated mixture then flowing in the line K through the preheaters A1, A2 in heat exchange with the initial materials.
Patent GB-1165133-A (GB)
Title: Container Dispensing Fitting
Inventor: WAKEFIELD SIDNEY
IPC: G01F11/08
Filed: 1966-02-11
Abstract: 1,165,133. Resilient-walled containers; delivering measured quantities of liquids. BAKELITE XYLONITE Ltd. 9 Dec., 1966 [11 Feb., 1966], No. 5994/66. Headings B8D and B8N. A controlled amount of liquid is dispensed from a resilient container 1 by squeezing the container to raise the level of the liquid in an inner tube 7 to the required level, through an aperture 11 in the tube base, and by tilting the container while maintaining the squeezing action, thereby raising the aperture 11 above the liquid level in the container as the liquid pours from the tube mouth 8. The container may be blow moulded from polyethylene, and the tube, of the same material, may be a sliding fit in the container neck or be screw-threaded or adhered to the neck, or a rib and groove fastening may be used. In a modification, the tube is shortened and a capillary tube extends down from it. The tube 7 may be calibrated and the container 1 of transparent or translucent material. A non-return valve may be fitted at the mouth of the tube 7.
Patent GB-381074-A (GB)
Title: Improvements relating to woven fabrics containing mohair
IPC: D03D15/00
Filed: 1932-02-29
Abstract: 381,074. Woven fabrics containing specially twisted yarns. GOOD ALL WORSTED CO., Sanford, Maine, U.S.A. Feb. 29, 1932, No. 6040. Convention date, June 9, 1931. [Classes 120 (iii) and 142 (iv).] A fabric is woven from threads 1 wholly or partly of mohair including the kemp fibres of the Angora fleece and multiple threads, each comprising a light yarn 6 corresponding in colour to that of the kemp fibres, and dark yarns 3, 5. The yarns 5, 6 are first doubled together to form a " two-ply strand " the light yarn 6 being fed quicker than the yarn 5 so as to have the appearance of being loosely twisted around the yarn 5, as shown in Fig. 1, and the product is then twisted with the yarn 3, both being under the same tension. When the weft is beaten up, the light-coloured yarns 6 are forced to the surface of the fabric and break up the streaky appearance thereof due to the kemp fibres in the threads 1. In spinning the threads 1, fibres of a darker colour than the natural mohair such as wool, cotton or silk, or printed or dyed mohair fibres, may be mixed with the natural mohair fibres, so as to vary the colour of the fabric woven therefrom accordingly. Preferably the threads 1 constitute the weft and the multiple threads 3, 5, 6 the warp of the fabric.
Patent GB-101765-A (GB)
Title: Improvements in Aviators' Belts and the like.
Inventor: ROE ALLIOTT VERDON
IPC: B64D25/06
Filed: 1916-04-27
Abstract: 101,765. Roe, A. V. April 27, 1916. Eyes and loops; coupling.--A rope for securing an aviator in an aeroplane has in its terminal eye a tubular bend r connected to a screwed boss p which houses an eye-bolt o.
Patent GB-861436-A (GB)
Title: Improvements in and relating to devices responsive to angular movements
IPC: G01C19/56
Filed: 1956-02-27
Abstract: 861,436. Turn sensitive devices employing vibrating masses. KAROLUS, A. Feb. 20, 1957 [Feb. 27, 1956], No. 6077/56. Class 97(3) A device responsive to angular movements comprises two tuning forks having the extremities of their stems mounted on a common support, means for exciting the forks to vibrate at the same frequency and in opposite phase, electro-mechanical transducer means arranged to generate electrical outputs dependent upon the torsions in the two stems respectively, and a circuit for combining the two outputs additively, the two forks being so mounted that the torsional moments exerted by the two forks on the base are in opposition to one another. In the arrangement shown in Fig. 1 two identical tuning forks are fixed on opposite sides of a thin supporting plate 12. Vanes 17, 18 of magnetic material are fixed to the stems of the tuning forks and constitute the armatures of tranducers so that when torsion of the stems occurs, electromotive forces are generated in the coils 21, 22. The actuating coils 13, 14 of the tuning forks are connected in pushpull to a tunable oscillator 15, Fig. 2, in such a manner that the forks vibrate in phase opposition. The outputs of coils 21, 22 are added and fed through an amplifier 23, Fig. 2, to a phase comparator 24 which is supplied also with a reference oscillation from oscillator 15; the outputs of the comparator 24 lead or lag with respect to each other according to the sense of the rotation of the plate 12 and are fed to a motor 27 which drives the plate 12 through a worm drive so that the plate 12 acts as a heading indicator, and a suitable scale may be provided on it to co-operate with an index fixed in relation to the aircraft or other vehicle in which the device is mounted. In another circuit arrangement, Fig. 3 (not shown), the phase comparator 24 is replaced by a phase sensitive detector the output of which is fed to a meter of the centre zero type. The deflections of the meter on opposite sides of zero indicate turns in opposite directions and the magnitude of the deflection indicates the rate of turn. The tuning forks need not be on opposite sides of a supporting plate but may be mounted side by side. The forks need not be electromagnetic but may be of quartz driven electrostatically, and the transducers may be piezo-electric.
Patent GB-339563-A (GB)
Title: Improvements in methods of and apparatus for drying agricultural produce
IPC: F26B21/00
Filed: 1930-02-24
Abstract: 339,563. Pettersson, V. I. Feb. 22. 1929, [Convention date]. Drying unstacked hay &c.-Cut grass, stalked cereals, or the like for drying is formed into hollow cylinders and passed on a guiding track through a chamber swept by air. Cylinders l, Fig. 1, rest on an inclined track c with lateral angle supports v and are intermittently discharged under gravity through a door e, additional cylinders replacing them through a door d. Fans g, radiators k, air inlets h, Fig. 2, and adjustable excess air outlets i are provided. The cylinders may be held in shape by cords or encased in perforated metal drums. Air for drying may be cold or hot, and may be supplied in counter-current to the material from a separate heating device outside the chamber and passed in a zig-zag manner through successive cylinders. In a modification the cylinders are pushed in axial alignment on a cylindrical or semi-circular track q, Fig. 3, made of perforated metallic sheet or of a system of rods, spaced rods t forming top guiding means. Hot or cold air is admitted at the discharging end of the chamber and passes out at the charging end through an opening s. The cylinders may be rotated during drying.
Patent GB-864680-A (GB)
Title: Improvements in apparatus for the storage of powdered materials
Inventor: RATCLIFFE ALFRED
IPC: B65G3/04
Filed: 1958-02-26
Abstract: 864,680. Storing granular materials. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 26, 1958, No. 6187/58. Class 20(1) Storage apparatus for minimising the caking of powdered material comprises a container 1 divided by partitions 2 which are disposed at an angle to the horizontal greater than the angle of repose of the material and means for transferring the material from the lower compartment to the upper compartment. The partitions are constructed either from two plane surfaces intersecting within the container to form a ridge 3 or from two similar portions of two inverted conically shaped surfaces intersecting within the container. An overflow duct 4 connects the two compartments which are further connected by valve controlled openings 5. The material passes from the lower compartment through openings 7 to conveyer troughs 8, 9 which feed into an elevator 12 which may be arranged to discharge on to the conveyer 18 to suitable handling equipment or to discharge on to the transverse conveyer 14 at the top of the apparatus in order to circulate the material. The internal surfaces of the apparatus may be heated. Specification 771,937 is referred to.