baber/WOPTO huggingface dataset:
Patent GB-145084-A (GB)
Title: Process and apparatus for the production of rontgen rays
IPC: H05G1/68
Filed: 1920-06-17
Abstract: 145,084. Lilienfeld, J. E. April 9, 1918, [Convention date]. R÷ntgen-ray tubes.-In a high-vacuum tube, a field oscillating with a high frequency controls the'cathode-ray discharge either in the part of the tube between an incandescent filament and a cathode, or in the part of the tube in which the discharge is accelerated between the cathode and an anticathode, so that sudden variations of the density of the cathode-ray discharge, in phase with the oscillations, are produced. As shown in Fig .1, the filament G is heated by current from a transformer H, and oscillations between the filament and a cathode K are produced by means of a transformer T<z>, the secondary of which is in series with an oscillatory circuit, comprising a condenser C<1> and an inductance J' coupled with an inductance J<2>, which is connected through a condenser C<2> with a grid N and the filament. An alternating potential is applied between the cathode K and the anticathode by means of a transformer T<R> or a continuous or unidirectional potential may be used. In the arrangement shown in Fig. 2, the cathode-ray discharge pass ing through an opening in the cathode K to the anticathode and through an aperture in an interposed screen B, is deflected by means of an oscillating potential applied to two plates P<1>, P<2>, thereby causing the discharge to impinge on the screen, the resulting charge on which is absorbed in a resistance (not shown), or in a part W of the winding of the transformer T<R>. A continuous, alternating or unidirectional potential is applied between the screen and the anticathode. The plates P<1>, P<2> are connected with an oscillating circuit comprising condensers C<1>, C<2> and inductance J<2> which is connected at the point S with the screen B and with the transformer T<R>. The arrangement may be such that the discharge passes through the screen when the potential between the plates is zero, or a predetermined value. The plates P<1>, P<2> may be dispensed with, in which case the screen B and the anticathode are connected with a high frequency oscillation circuit. Specifications 23169/12, 14892/13 and 4097/15 are referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the frequency of the oscillations exceeds 125 periods a second, and variations in the velocity of the discharge are produced. In the arrangement shown in Fig. 1 (Cancelled), the condenser C<1> and inductance J<1> are connected in series. This subject-matter does not appear in the Specification as accepted.
Patent GB-577381-A (GB)
Title: Improvements in radio direction-finding systems
IPC: G01S3/06
Filed: 1937-06-14
Abstract: 577,381. Directive wireless systems. DEWHURST, H., and EASTWOOD, W. S. June 14, 1937, No. 16438. [Class 40 (v)] The sense aerial in a direction finder is off-set in plan view from the D.F. aerial by #/4 and for sense determination the outputs from the two aerials are combined in phase or antiphase according to the sense of the direction of the incoming signal. As shown in the Figure, direction is determined by the elevated crossed dipoles 1 and 2 which are connected to a goniometer, a lower crossed pair 4 and 5 being provided for use in conjunction with the upper pair for determining the angle of elevation of the incoming signals. The sense dipoles 6 and 7 are mounted between the two sets of D.F. dipoles and are spaced from them by a distance equal to or greater than #/2, each sense dipole 6 and 7 being parallel to the associated D.F. dipole 1 and 2, but off-set in the horizontal plane by #-4 from the vertical axis of the system. If the dipole 1 is in the E-W direction and the sense dipole 6 is displaced to the N, the sense of signals in the NS quadrants is determined by combining the outputs from dipoles 1 and 6 in parallel, the signal from the sense aerial being delayed by #/4 by the insertion of an extra #/4 length in the associated feeder when the goniometer pointer is in the N quadrant. The resultant response for signals from the N is then greater than for signals from the S. When the goniometer pointer is swung into the S quadrant, the signal from the sense dipole 6 is phase reversed so that the resultant response for S signals exceeds N signals. A similar arrangement is provided for the E-W working aerials and the switches for effecting the circuit changes as the goniometer pointer is moved from one quadrant to another are operated by cams on the goniometer shaft, Fig. 4 (not shown). Two dummy balancing aerials 8 and 9 are provided for symmetry to minimise interaction of the sense aerials with the D.F. aerials.
Patent GB-1309645-A (GB)
Title: Lead screw and nut-type actuator with braking device to prevent rotation induced by axial loading
IPC: F16H25/24
Filed: 1970-04-07
Abstract: 1309645 Screw and nut actuators ABEX INDUSTRIES OF CANADA Ltd 7 April 1970 16507/70 Heading B8J A screw and nut actuator is provided with a braking device 50 comprising two unidirectional friction clutches 53, 54 of opposite hand with friction discs 51, 52 attached to a flange 11 on screw 10. In the static position with ball nut 20 unloaded there is a small clearance between both friction plates 51, 52 and their associated clutches 53, 54. If the nut 20 is now loaded in the direction of the single-headed arrow plate 52 contacts clutch 54 which locks the screw 10. Conversely, if nut 20 is loaded in the other direction the other clutch 53 locks the screw 10. In the dynamic condition, if the screw 10 is rotated counter-clockwise (CCW) to drive the nut 20 against a compressive load the plate 52 engages the clutch 54 which free-wheels. If, on the other hand, the screw 10 is rotated counter-clockwise with a tensile load acting on the nut 20 the plate 51 engages the clutch 53 which locks, the plate 51 and clutch 53 slip relatively, acting as a brake to dissipate the energy of the load as heat conducted away by an oil flow (not shown). The device 50 operates similarly for compressive and tensile loads when the screw 10 is rotated clockwise (CW). The screw 10 is dualized by incorporating an internal coaxial torsion-tension tube (14), Fig. 1 (not shown), capable of carrying the ultimate load should a crack develop in the screw 10.
Patent GB-332005-A (GB)
Title: Improved slot release mechanism
IPC: G07F17/14
Filed: 1929-05-29
Abstract: 332,005. Marjason, S. May 29, 1929. Coin action, thrust and mechanical-connection; tokens of special f o r m ; delivery of articles stored in compartments; turnstiles.- Slotted movable and fixed members are normally retained in a position in which the slots are out of alignment but on the insertion of a purchased key or token the movable member may be turned until the slots are in alignment, thereby allowing the passage of the key or token into the apparatus to effect a desired operation such as the release of a drawer containing a vendible article or, according to the Provisional Specification, the freeing of a turnstile. In the apparatus shown the inner barrel 11 of a lock 16 of the pin-and-tumbler type is secured to a slotted plate 8 and may be turned to a limited extent in the outer barrel on a key 10 being inserted in the plate 8 until a projection 45 on the key contacts with a plate 13 which is arranged between the plate 8 and barrel 11 and is fixed to the supporting plate 6. When the barrel has been turned withdrawal of the key is prevented by a tongue 22 on the plate 13 and the slots 9, 18, 20 in the plates 8, 13 and barrel 11 respectively are in alignment. The key 10 may now be further inserted until the hook 44 at its end is engaged by a spring-pressed pawl 40 on an arm 37 carried by a horizontally slidable rod 34. On pressing the rod 34 against the resistance of a spring 36 the key 10 is drawn into the apparatus as shown in Fig. 6, and during its passage it moves outwardly plates 24, 25 arranged radially in opposite slots 20, 20 in the outer lock barrel. The movement of the plate 25 depresses a lever 27 into engagement with a spring catch 48 and in so doing withdraws a catch bar 29 from engagement with a drawer 2 containing the vendible article. When the drawer is opened, a projection on the drawer engages an arm 61 of a bell-crank lever 49 secured to the barrel 11. The barrel 11 is thereby returned to its original position and a bar 53 is moved to release the catch 48 and allow the bar 29 to be moved by a spring 31 to re-engage the aperture 32 in the drawer when the drawer is again closed.
Patent GB-169248-A (GB)
Title: Improvements in or relating to singeing or heating plates or rollers
IPC: D06C9/00
Filed: 1920-06-19
Abstract: 169,248. Selas-Turner Co., Ltd., and Turner, E. June 19, 1920. Feeding webs.-Cloth-singeing plates or rollers having a perforated and corrugated surface have ribs c arranged spirally in opposite directions at each end, so as to act as a scrimp rail to stretch the cloth being treated.
Patent GB-680164-A (GB)
Title: Improvements in inductance coils
Inventor: SPENCER JOHN GORDON
IPC: H01F37/00
Filed: 1950-07-04
Abstract: 680,164. Inductors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 4, 1950, No. 16695/50. Class 38 (ii). The inductance of a coil is over-, under- or wholly-compensated for temperature change by the combination of the difference in areas of two gaps in its magnetic circuit, and the sense of change, influenced by a non-magnetic spacer member, in the gap lengths. Fig. 1 shows a winding 1 on a cylindrical shell type core comprising parts 5, 3, 8, 6, 4, 2 cemented together, the part 6 being the spacer member of, e.g., synthetic resin bonded paper board, and the rest of, e.g. material known by the trade name Ferrexcube III. Due to the greater coefficient of expansion of the spacer member, temperature rise decreases the length of the gap of smaller area between parts 2 and 5, and increases that of the gap of larger area between parts 4 and 8. This embodiment yields a highly positive temperature coefficient of inductance due to the negative effect of the greater area gap, the higher positive effect of the smaller area gap, and the positive temperature coefficient of permeability of the material. In modifications, the winding leg comprises two cylinders of two different diameters disposed end to end and supported at their junction by a tubular spacer member carried by one yoke. A rubber ring may be disposed in the unspaced gap.
Patent GB-1249394-A (GB)
Title: Power presses
Inventor: WILKINS EDWARD WALTER
IPC: B21D43/05
Filed: 1969-03-07
Abstract: 1,249,394. Metal working press line; stamping. WILKINS & MITCHELL Ltd. 14 April, 1970 [7 March, 1969; 1 April, 1969], Nos. 12079/69 and 16918/69. Headings B3H and B3Q. A press line 10-12 has transfer devices 33, 34 between the presses and control means for the presses to change the speed or stop or start the press in dependence on the number of workpieces in the transfer device. One press (the master press) 12 is driven at a fixed speed and the other presses are each controlled by the succeeding transfer device. Each transfer device has a set of arms 35-40 with workpiece holders 42. The arms are driven by an electric motor through a clutch and have abutments 44 to prevent overtaking. Each press has pairs of grippers 14, 15 moved in synchronism with the press to transfer workpieces through the press. The presses have locking means (not further described) to hold the arms in position to receive or discharge a workpiece. The press 10 is stopped or started in dependence on the workpieces in the transfer device 33. In the embodiment the press is stopped when there are three workpieces in the arms of the device between the presses and started when there is only one Alternatively the presses 10, 11 can be run continuously and their speeds varied by an eddy current coupling between an A.C. drive motor and its press or by a regulatable D.C. motor. In a second embodiment, Figs. 3 and 4 (not shown), the master press (60) precedes the variable speed or discontinuous presses (61)- (63). The transfer device (64) between the first press (60) and the press (61) is similar to those of the first embodiment and also inverts the work-pieces. The other transfer devices (65)- (67) are in the form of carriages on conveyers (110). Each press can have its bottom bolster (68)- (71) replaced by moving it along guide rails (72)-(76) to a magazine, Fig. 4 (not shown).
Patent GB-915743-A (GB)
Title: Improvements relating to domestic laundry machines
Inventor: SIBBALD FREDERICK ROY
IPC: D06F39/08
Filed: 1958-05-27
Abstract: 915,743. Washing-machines. HOOVER Ltd. April 9, 1959 [May 27, 1958], No. 16942/58. Class 138 (2). [Also in Group XIII] An outlet pipe from a washing and/or spindrying machine includes a lower flexible portion 22 connected to an emptying pump, a middle rigid vertical portion 29 extending through a guide 30, and an upper horizontal portion 31, the upper and middle portions being raisable, and turnable about a vertical axis. The upper portion 31 has a downwardlydirected outlet 35 and lies in a trough 32 in its retracted position. When the portion 31 is raised a twist in the flexible portion 22 biases the portion 31 to the laterally-extending position shown in chain lines.
Patent GB-806570-A (GB)
Title: Temperature control in the fixed bed catalytic chlorination of hydrocarbons
IPC: C07C17/156
Filed: 1957-05-28
Abstract: A process for the chlorination of hydrocarbons by passing a mixture of hydrocarbon, hydrogen chloride and elemental oxygen through a fixed bed of a copper chloride supported on particles of an inert carrier, comprises diluting the copper chloride particles in the bed by intimately mixing them with from 3 to 20 volumes of silicon carbide particles per volume of copper chloride bearing particles. Specified inert carriers are alumina, silica gel, pumice and diatomaceous earth.  The ratio of silicon carbide particles to copper chloride bearing particles is greater near the inlet end of the reaction zone than near the outlet.  Specified hydrocarbons which can be chlorinated are benzene, ethylene and methane.  In examples alumina particles carrying cupric chloride and mixed with silicon carbide particles are filled into a heated vertical nickel tube, hydrocarbon, hydrogen chloride and air are admitted at the top of the reactor, the gaseous effluent being removed at the bottom, condensed and recovered in known manner. Ethylene and methane are chlorinated to give 1:2-dichloroethane and methyl chloride respectively.  The results are compared with those wherein no silicon carbide diluent is used.
Patent GB-692158-A (GB)
Title: Improvements in or relating to the synthesis of hydrocarbons
IPC: C07C1/04
Filed: 1950-07-06
Abstract: The synthesis of hydrocarbons comprising olefins of gasoline boiling range from a gas containing CO and H2 using an iron-containing catalyst is effected with the addition, in amount sufficient to inhibit the formation of CO2, of a halogen or compound containing only halogen and one or more of the atoms H, C, and O which is volatile under the synthesis conditions.  The H2/CO consumption ratio is increased.  Hydrogen chloride, methyl chloride, chlorine, and chlorbenzene are effective in amounts of about 0.001-0.5 mol. per cent of synthesis gas. Corresponding bromine, fluorine or iodine compounds may also be used.  They may be added with the feed gases or used to pretreat the catalyst.  This is preferably fluidized and may be pyrites ash, mill scale, reduced iron on active carbon, suitably promoted with alkali metal salt, or mixed cobalt-iron, promoted, if desired, with thoria, and supported, e.g. on silica, or not. Total iron + cobalt may be 5-50 per cent.  A suitable catalyst is 1-25 per cent iron, 2-45 per cent cobalt, 0.1-5 per cent thorium, and 50-95 per cent silica.  Reaction conditions may be 450-750 DEG  F. and 50-600 p.s.i.g.  Natural gas may be oxidized with air at 50-100 p.s.i.g. and 2000-2500 DEG  F. to give a 2 : 1 H2 : CO ratio synthesis gas which is treated in a once-through operation with fluidized synthesis catalyst.  A series of reactors may be used in such a once through operation. If the synthesis gas is prepared from coal by the water gas reaction, the halogen or halide addition is advantageous at this stage also.  The additive may be recovered from the synthesis product and recycled.  It may also remain to improve the anti-knock properties of the gasoline obtained in the finishing treatment with alumina.  In examples: (1), (2) comparative figures for H2/CO consumption ratio and olefinicity are given using pyrites ash + 1 per cent KCl as catalyst in runs with and without chlorbenzene addition; (3) the same catalyst is pretreated with HCl; (4) methyl chloride is added with the feed; (5) the catalyst is cobalt-iron-thoria-silica and methyl chloride is added.ALSO:Catalysts for hydrocarbon synthesis comprise iron and cobalt, if desired promoted with thoria and supported on carriers such as silica gel, magnesia, silica-magnesia or alumina-silica.  Total iron and cobalt-content may be 5-50 per cent.  Examples are 1-25 per cent iron, 2-45 cobalt, 1-5 thoria, 50-95 silica or, more specifically, iron 7 or 2.8, cobalt 21 or 25.2, thorium 4.4, and silica hydrogel 67.6 per cent.  Such catalysts may be prepared by mixing the nitrates with silica, drying, heating at 420 to 500 DEG F, grinding, and reducing with hydrogen at 700 DEG F.  Reduced oxides of iron and cobalt or mixtures of pyrites ash with cobalt on silica may also be used of fluidizable particle size.
Patent GB-438463-A (GB)
Title: Improvements relating to invalids' and like tables
IPC: A47B23/04
Filed: 1934-06-08
Abstract: 438,463. Invalids' tables. JACKSON, H., 6, Regent Villas, Gosforth, and MARSDEN, G. R., 42, East Avenue, Benton, both in Northumberland. June 8, 1934, No. 17081. [Class 52 (iii)] An invalid's or like table comprises, on a base a, a main standard d, f, supporting a table p<1>, and a secondary standard e with a jack or like lifting-means enabling the part w to engage with and partly support the rail x of the bedstead. The parts d, f are telescopic, and are set by a spring bolt g. The table is rotatable in the tube f, and is set by a pinch screw j ; it is supported by means of an angle-iron n on collars q on the tube m, and is set angularly by the spring r pressing the notches q<1> into engagement with the pins m<1>. The jack-like device comprises a screw-and-nut lifting-device u, v for a clamp y, which is stayed by a saddle y<1> bearing against the tube d. A quick adjustment is afforded by the tube t telescoping into the part e, in which it is set by a spring catch device t. When adapted to a chair or settee, the part w is suitably modified.
Patent GB-590987-A (GB)
Title: Fuel and air supply systems of carburetting apparatus
IPC: F02M69/00
Filed: 1945-07-04
Abstract: 590,987. Carburetting-apparatus. BENDIX AVIATION CORPORATION. July 4, 1945, No. 17081. Convention date, Oct. 16, 1944. Addition to 590,960. [Classes 7 (iii) and 7 (vi)] The chamber 78 behind the diaphragm 142 of the fuel-supply valve 80, forming part of the fuel and air supply system described in the parent Specification, is subject to the difference between the pressures derived from an impact tube 150 and a suction tube 130 in the air conduit 32. In the construction shown in Fig. 1, the chamber 78 is connected by a passage 132 containing a constriction 154 and controlled by a valve 160 carried by a diaphragm 142 with a passage 140 which terminates in-the suction tube 130. This tube is disposed in front of the vane 36 controlling the fuel-metering valve. A chamber 146 is connected with a passage 152 containing a restriction 156 and with a passage 148 terminating in the impact tube 150. As the engine speed increases the suction acting on the diaphragm 142 increases, closing the valve 160 against the action of a spring 162 thereby closing the passage 132 and enabling the pressure in the chamber 78 to rise and increase the pressure of fuel supplied to the nozzle 28. In modified constructions the suction in the tube 130 and the pressure in the impact tube 150 act on opposite sides of a spring-pressed diaphragm carrying a rod having an adjustable end which, either directly engages a plunger to vary the tension of the spring 112, or makes or breaks a switch which controls a circuit including a solenoid actuating the plunger.
Patent GB-837034-A (GB)
Title: Improvements in or relating to duplicating machines
Inventor: FRANCIS FREDERICK GEORGE
IPC: B41L11/00
Filed: 1957-05-29
Abstract: 837,034. Copying documents. CARIBONUM Ltd. May 9, 1958 [May 29, 1957], No. 17086/57. Class 100(2) A duplicating machine comprises a rotatable cylinder for supporting a mirrorscript master sheet carrying a pressuretransferable coating which comprises a colourless acid-sensitive dyestuff derivative, a pressure roller arranged to be driven by contact with the rotatable cylinder and thereby to subject a copy sheet carrying an acid fixing substance for the dyestuff derivative and fed between the cylinder and the roller to pressure contact with the master sheet; and a source of heat disposed beyond the rotatable cylinder in the direction of advance of the copy sheet for raising the temperature of the copy sheet almost immediately after its pressure contact with the master sheet so as to cause a colour-forming reaction to occur thereon. After passing between the cylinder 10, Fig. 1, and roller 14, the copy sheet passes between a roller 15 driven from the roller 14 and a roller 16 driven by friction from the roller 15 and heated by an electric coil 17. A housing 18 comprises a hinged portion 20 to allow access to the cylinder, a baffle plate 32 to lessen the passage of heat to the master sheet, openings 27, 30 for entry and exit of the copy sheet, and openings 21 to dissipate heat from the machine. In another form, Fig. 2, the copy sheet is carried by a conveyer comprising tapes or a belt 41 under infra-red lamps or heaters 47 and over a heating element 47a. The lamps or heaters 47 may be replaced by one or more hot air jets directed by a fan, ducts and heaters on to the copy sheet, the air being at 200-350‹C., or by an open coiled wire heater, in which case the papercarrying base and the inside upper surfaces of the housing are covered with polished aluminium foil to intensify the heating effect, the heater and sheet-transporting surfaces being enclosed in a separate cover lower than the housing. The roller 14 can be moved away from the cylinder 10 during attachment of the master sheet, its spindle 14a being mounted on a pivoted lever. In another form, the source of heat is a hot plate containing an electric heating element mounted above the conveyer, and the cylinder 10 is arranged below the roller 14, the lower right-hand part of the casing being hinged. Specification 835,930 is referred to.
Patent GB-813040-A (GB)
Title: Improvements in or relating to transducers of ultrasonic waves
IPC: G01B17/02
Filed: 1956-03-20
Abstract: 813,040. Ultrasonic inspection devices. SPERRY PRODUCTS Inc. March 20, 1956 [March 21, 1955], No.' 17106/57. Divided out of 813,039. Class 118 (2). In an ultrasonic pulse-echo system for measuring the thickness of a workpiece 10 or locating a defect therein, the wave pulse output from an electrical generator 12 is connected to a piezo-electric crystal 17 coupled by a soundconductive element 19 to another piezo-electric crystal 18 in contact with the workpiece 10 and connected through an amplifier 22 to the Y plates of a cathode-ray oscilloscope 23 whose timebase 24 is synchronized by the pulse generator 12. The natural frequencies of crystals 17 and 18 are respectively equal to and higher than the wave frequency of the pulses from generator 12 so that the crystal 18 is critically damped and the propagation time of the coupling element 19 is greater than that of the workpiece 10 so that the amplifier 22 is not shock excited by the transmitted pulse and the echo pulses are not stretched by the receiving crystal 18. The two crystals are electrostatically shielded from each other. Reference has been directed by the Comptroller to Specifications 715,143 and 774,675.