baber/WOPTO huggingface dataset:
Patent GB-914120-A (GB)
Title: Apparatus for producing printing master sheets
IPC: G03B27/30
Filed: 1961-03-30
Abstract: 914,120. Photographic apparatus for producing printing master sheets. RITZERFELD, W., and RITZERFELD, G. March 30, 1961 [April 8, 1960; Dec. 1, 1960], No. 11721/61. Class 98 (2). In an apparatus for producing printing master sheets, comprising a treatment device having a treatment bath, feed rollers, guide means and discharge rollers for developing a photographic sheet having a lightsensitive coating such as a gelatinesilver-halide emulsion which has been exposed to an original, the treatment device is combined with a contact pressure device having at least one pair of rollers drivable at a higher peripheral speed than the speed of said feed rollers and said discharge rollers and a device is provided for feeding two sheets to be brought into contact with each other, said feeding device comprising a separate feed guide for each of said two sheets for feeding them when placed thereon to the pair of rollers of said contact pressure device so that the sheets may meet each other between the pair of rollers of the contact pressure device. In a first embodiment (Fig. 1), the treatment device comprises a feed table 24 on which a photographic sheet 6 may be supported, feed rollers 29, 30 (29 of which is drivably connected to a motor 10), guide means 25, 26 for guiding sheets 6 through a developing bath 4 and discharge rollers 31, 32 (31 of which is drivably connected to motor 10). The contact pressure device comprises two rollers 35, 16 (16 of which is connected to the motor 10 to be driven at a higher peripheral speed than the rollers 12 and 13) and the feed device comprises two guides 36 and 38 arranged for guiding two sheets in super-position into the nip of said rollers 35, 16. In use, first a developed sheet 6 and an ink transfer sheet 8 and then said ink transfer sheet and a printing master sheet are pressed into contact with each other by the contact pressure device. Roller 16 is provided with a heating coil 34. A discharge tray is provided at 39 and an exposure device comprising a light source 23, a transparent cylindrical hood 5 and a resilient blind 7 is provided on top of the casing 2 of the main apparatus. In a modified embodiment (Fig. 2), it is arranged that as a photographic sheet 6 emerges from the guide means 25, 26 of the treatment device, it engages a fold 70 in an ink transfer sheet 8 supported in a removable tray 55, and carries this sheet with it into the nip between discharge rollers 35, 16 and out of the apparatus over a plate 39. Two other guide trays, 56 and 58 (56 of which is removable and 58 of which is adjustable about a pivot 53) are provided for respectively supporting the ink transfer sheet 8 and a printing master sheet (such as a sheet of paper 38) before these are fed in superposition between contact pressure rollers 79 and 80 (80 of which is driven from the motor 10). Means as at 46 connected to a storage tank 44 are provided for maintaining the developer in container 3 constant at a chosen level BC. A thermostatically controlled heater may be included in the tank 44.
Patent GB-347859-A (GB)
Title: Improvements relating to oil-fired heating apparatus especially adapted for use with melting pans and the like
IPC: F23D99/00
Filed: 1930-04-14
Abstract: 347,859. Melting stoves. TIGHT, A. J., 16, King's Grove, Maidenhead, Berkshire, and EBNER, F. H., Stewart Street, Cubitt Town, London. April 14, 1930, No. 11737. [Class 126.] An oil stove for heating a melting-pan, particularly for melting pitch, tar, and like inflammable substances, comprises a burner situated at a distance from the fuel reservoir 1 and arranged in a substantially closed receptacle 8 which serves as a support for the pan 12. The receptacle 8 may contain water to extinguish the flames in case of overturning, and may be adapted to contain the reservoir 1 and the disconnected lengths of pipe by which it is, when in use, connected to the burner. An aperture 10 with a door 10a is provided in the side of the vessel 8, and air-holes may be provided round the top.
Patent GB-824412-A (GB)
Title: Improvements in and relating to aircraft hangar doors
Inventor: CUBITT KENNETH HAMILTON
IPC: E06B3/01
Filed: 1957-04-10
Abstract: 824,412. Doors. EDUCATIONAL SUPPLY ASSOCIATION Ltd. May 16, 1957 [April 10, 1957], No. 11753/57. Class 20(3) In a door arrangement for an aircraft hanger of the kind which only partially houses one, or more, aircraft, two panels a, b are mounted to slide in vertical parallel planes immediately behind a normal track supporting a pair of sliding, folding, doors c, d, each panel having a large cutaway portion opening into its leading edge to accommodate a pair of overlapping triangular membranes e, f, made e.g. of canvas, or rubber, and preferably having their leading edges k, m, reinforced by rubber tubing, beading, or moulding. The upper and lower edges of each pair of membranes are attached to metal sector pieces h, r which are hinged at one end to the respective panel and are urged upwardly and downwardly respectively by springs i, j to hold the membranes taut. In operation, with an aircraft fuselage n resting across the threshold of the hanger doorway the panels are moved toward each other to partially overlap, the leading edges of the pairs of membranes engaging around the aircraft fuselage to seal the gap around its surface. A hanger may be adapted to receive two or more aircraft at once, e.g. where two aircraft are to be housed, two pairs of panels are supported on a subsidiary track, the sliding doors proper comprising three sections. Means are preferably provided for locking the panels and the doors in position on their subsidiary and main tracks respectively.
Patent GB-1175157-A (GB)
Title: Improvements in or relating to Steam Condensers
Inventor: KREISELMAIER ERNST
IPC: F28F19/04
Filed: 1967-03-15
Abstract: 1,175,157. Tubular heat exchangers. E. KREISELMAIER. 15 March, 1967 [19 March, 1966], No. 12089/67. Heading F4S. Coolant tubes 14 in a surface condenser have their ends secured in tube plates 11 and on the face of each tube plate adjacent the tube ends is provided a layer 12 of plastics material, said layer having apertures therein corresponding to the tubes and each aperture being shaped to provide a flared entry or exit port 13 for the fluid passing through the tubes. As shown, the plastics layer preferably extends to the inside edge of the tube ends. The arrangement is intended to prevent corrosion or erosion of the tube plate by the tube-side fluid.
Patent GB-1107184-A (GB)
Title: Electronic control for fault detection and stop-motion system
Inventor: TELLERMAN EDWARD MARTIN
IPC: B23Q15/00
Filed: 1965-03-23
Abstract: 1,107,184. Control of motors. STOPMOTION DEVICES CORPORATION. 23 March, 1965, No. 12204/65. Heading H2J. A protective system for a knitting machine which is operated by motor 40 comprises faultdetector switches 10, 12, 14, 16 associated with signal lamps 17, 18, 20, shunted by resistors 22, 24, 26, each having a high value. Closure of any detector switch lights an associated lamp and energizes relays 32 and 43 to stop the motor. The lamp-circuit is supplied with half-wave current through rectifier 34, and, during alternate half-waves, the relay 32 is supplied through rectifier 31 provided that one of the detector switches is closed. A capacitor 33 maintains energization of the relay 32. In another arrangement, a transistor is connected in series with the protective relay and serves as an amplifier. The protective relay may be of the power type for direct control of the motor. Another modification employs an input current which is unidirectional and pulsating. An additional capacitor is discharged through the protective relay and shunt capacitor when a detector switch is closed.
Patent GB-849237-A (GB)
Title: Nitrocyclododecanes and cyclododecanone oxime
Filed: 1958-04-17
Abstract: The invention comprises the production of acinitrocyclododecane (see Group IV (b)), which may be used as a starting-material for making a C12-lactam, and the latter may be used in the production of superpolyamides.  The aci-nitrocyclododecane is converted into cyclododecanone oxime by mild reduction, and the oxime is then converted into the lactam by the Beckmann rearrangement. Specifications 848,951 and 849,236 are referred to.ALSO:The invention comprises nitrocyclododecane, and its production by nitrating cyclododecane.  The invention also comprises the production, in a stable state, of the aci-form of nitrocyclododecane, and the mild reduction of the aci-form whereby the oxime of cyclododecanone is produced.  The mild reduction may be effected by means of (i) methanol containing a small proportion of glacial acetic acid or hydroxylamine hydrochloride, (ii) hydrogen sulphide in hexane or cyclohexane, or (iii) hydrogenation in the presence of a palladium-barium sulphate catalyst in tetrahydrofurane.  In order to obtain the aci-form, it is not necessary to isolate nitrocyclododecane from the product obtained by nitration of cyclododecane.  In example 1, cyclododecane and nitric acid (density 1,2) are heated in an autoclave for 4 hours at 127 DEG -135 DEG  C. The reaction product is dissolved in ether, and the ethereal solution is separated from the aqueous layer.  The ethereal solution is then vigorously stirred with an aqueous solution of potassium hydroxide. The alkaline solution is then saturated with carbon dioxide, and extracted with ether.  The ether-extract is then distilled in vacuo whereby nitro-cyclododecane having a boiling-point of 110 DEG -115 DEG  C. under a pressure of 0,6 mm. is obtained.  In example 5, cyclododecane, nitric acid and potassium nitrate are heated for 10 hours at 110 DEG  C. in a magnetically-stirred autoclave.  The contents of the autoclave are mixed with ether and, after separation of the aqueous layer, the ethersolution is mixed with a solution of potassium hydroxide in methanol.  After 1/2 -hour, the mixture is diluted with water, and the aqueous layer is separated.  The ether-solution is then treated with solid carbon dioxide whereupon the aciform of nitrocyclododecane is precipitated.  Examples 6 to 9 relate to the reduction of acinitrocyclododecane to the oxime using the reducing-agents referred to above.  Small quantities of cyclododecanone are obtained as byproduct in Examples 6 and 7. Specifications 848,951 and 849,236 are referred to.
Patent GB-590546-A (GB)
Title: Improvements in high frequency electrical oscillators
IPC: H01J23/22
Filed: 1942-09-02
Abstract: 590,546. Magnetrons. BOOT, H. A. H., RANDALL, J. T., and WRIGHT, C. S. Sept. , 2, 1942, No. 12354. [Class 39 (i)] In a magnetron of the kind described in Specification 588,916, the reactance of the conductive straps or of the connection of the strap to a selected point on the resonator system is adjusted so that. the phase difference between the alternating .voltages of the connected points has a desired value, preferably zero. In one form, shown in developed view in Fig. 2, alternate anode segments A2, which it is desired to keep in phase with segments A1, are drilled and extension 9 of the strap 7 connected to segments A1, extends into the hole 10, forming a short section of coaxial line, the reactance of which can be selected to give the desired phase difference. The end of wire 9 may be free, or connected to the bottom of hole 10 for support. In another form, the strap 7, Fig. 3, passes very close to the segment A2 and forms an adjustable capacitative connection ; for example strap 7 may be an annular strap passing in shallow, narrow grooves in segments A2 and in deep, wide grooves in out-of-phase segments B. Alternatively, or in addition, the inductance or capacity of the strap itself may be varied by varying its length or shape or by coupling it with variable loops or other external circuits. Specifications 588,185 and 590,547 also are referred to.
Patent GB-316598-A (GB)
Title: Improvements in street traffic controlling or signalling devices
IPC: G08G1/096
Filed: 1928-04-28
Abstract: 316,598. Waterhouse, H. April 28, . 1928. Road signals. - A traffic signalling device for cross roads is arranged so that the proportion of time that has elapsed since the last change of signal and the proportion of time to elapse before the next change can be seen at a glance. A pillar a carries a traffic signalling device of known construction containing three lenses or lamps R, W, G giving red, white and green lights corresponding to the signals " stop," " caution " and " go," and carries a dial B provided with a hand or pointer C and having its circumference numbered 1, 2, 3, 4, 5, 0 at regular intervals. When the pointer reaches the top position 0 the lens R becomes illuminated and continues so whilst the pointer travels round the dial until it arrives at any convenient point, say at the position marked 5, whereby the light R is extinguished and the light W lights up and remains lit until the pointer again reaches the position 0. The light W is then extinguished and the G signal is lit up, the pointer continuing to travel round the dial until it again reaches 5 when the light W again lights up followed by the light R and the cycle is repeated. In another form, Fig. 3, six white or plain lenses are employed with red and green coloured lamps situated behind them, each set of lamps being adapted to be lit up alternately. The arrangement may be modified by having two differently coloured circles of lights for a circle of lights of alternate colour or by having the lights in horizontal or vertical rows. Reference has been directed by the Comptroller to Specification 309,495.
Patent GB-1135518-A (GB)
Title: Flying spot transparency scanner
Inventor: MACLEOD KENNETH CHARLES
IPC: H04N3/34
Filed: 1967-03-16
Abstract: 1,135,518. Television. RANK ORGANISATION Ltd. 22 Nov., 1967 [16 March, 1967], No. 12457/67. Heading H4F. A raster traced upon the screen of a single cathode-ray tube is imaged accurately in position on each of a plurality of transparencies, e.g. T1 and T2, Fig. 1, by means of objective lenses OL1 and OL2 by first setting the raster AB and transparencies effectively in planeparallel relationship and then centring the images in desired position on the transparencies by displacement of the axes P, Q of the lenses in relation to the centres of the image planes to optically align the centres of the desired raster positions C, D, the respective objective lens centres P 1 , Q 1  and the centre of the raster X. Where limitations of lens design render complete correction by the above method impossible, the images may be at least approximately centred in desired position on the transparencies by displacement of the axes of the lenses in relation to the centres of the image planes and then, by moving the mountings of the lenses and transparencies together as a whole relative to the screen of the CRT the centres T 1 (T 2 ), 0L 1 (0L 2 ) and X are optically aligned. Image focus may be optimized by minor rotational adjustment ofthe transparencies about their centres. A folded equivalent of the arrangement of Fig. 1 may be effected by two mirrors each disposed in a plane at an angle to the plane of the transparency which is one half that of the angle between the latter plane and that of the screen of CRT, Fig. 2, not shown. In this arrangement due to design considerations, the final optical alignment may be effected by rotation of the mirrors about their centres, correction of the minor defocusing of the raster image at its extremities being effected by rotation of the transparencies about their centres, Fig. 3, not shown.
Patent GB-202275-A (GB)
Title: Stencil-device for writing characters
IPC: B43L7/00
Filed: 1923-05-09
Abstract: 202,275. Berchtold, A. Aug. 12, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Stencils.-A lettering-stencil comprises a disc 11 which is formed with apertures 14 for guiding a pen, and is revoluble and laterally adjustable on a bar 3, laterally adjustable on a bar 1. Capital and small letters may be formed by adjacent apertures, or separate discs mav be provided for this purpose. The disc is revolubly mounted on a bolt 9 which is supported in a slide 8 arranged in a longitudinal slot 7 in the bar 3. The disc is formed with pits 15 for engaging a locking-spring 16 on the slide. The bar 3 is provided with a Knob 5, a retaining-spring 4, and a pointer 6 arranged over a scale on the bar 1. The head 12 of the bolt 9 may be provided with a pointer arranged over a scale on the bar 3. The bars can be secured by means of drawing-pins passed through lugs 2. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of stencils which can move in the manner of a slide-rule, and can be placed together to form characters &c. This subject-matter does net appear in the Specification as accepted.
Patent GB-1412206-A (GB)
Title: Cathode ray tube display device
IPC: H05B33/00
Filed: 1973-03-15
Abstract: 1412206 Cathode-ray storage tube INTERNATIONAL BUSINESS MACHINES CORP 15 March 1973 [15 June 1972] 12518/73 Heading H1D A cathode-ray tube storage and display device includes a layer capable both of retaining a change pattern written on its inner surface by a writing gun, and of producing a visible change corresponding to the pattern on its outer surface in response to the application of an alternating signal thereto; means for applying the alternating signal across the layer; and an electron flood gun and collector electrode positioned adjacent the layer for clamping the written regions at a fixed potential so that the alternating signal is developed thereacross. The charge retaining and visible-image-producing layer may be constituted by an array of liquid crystal or gas discharge cells, or-as described in detail-by electroluminescent material, the layer in each case being coated on its inner surface with a layer of secondary electron emissive material held in a dielectric binder, which may be dispensed with in the case of an electroluminescent material which is itself secondary emissive. As shown, an electroluminescent and secondary emissive layer 1 is formed on a conductive layer 5 to which an alternating potential V BP  is applied; the high energy writing beam together with the earthed secondary electron collecting mesh 3, drives the written target areas to a positive potential, at which they are stabilized by the flood beams from guns 23 and 25 attracted thereto. The A.C. potential V BP  is therefore developed across the written areas to produce electroluminescence, whereas the unwritten areas do not attract the flood beams, and float with the A.C. variation. The A.C. potential may alternatively be applied to the mesh 3 while the layer 5 is held at constant potential. The intensity of the display may be increased by employing an electroluminescent material which is also cathodoluminescent, e.g. Cu doped ZnS mixed in a glass binder, or by coating the layer 1 with a separate layer of cathodoluminescent material, and the transparent, conductive layer 5 may be a thin metal layer, or the oxide of tin, indium, or copper, or copper iodide. In an arrangement facilitating replacement of the electroluminescent layer, the latter, together with its transparent conductive backing plate 5 is formed on the outer surface of the faceplate 37, and a secondary electron emissive layer is formed on the inner surface, an array of conductive pins passing through the faceplate to provide conductive connection between the two layers.
Patent GB-543001-A (GB)
Title: Improvements in conducting liquid electric switches
IPC: H01H29/18
Filed: 1940-08-02
Abstract: 543,001. Conducting-liquid switches. COLBY, F. Aug. 2, 1940, No. 12525. [Class 38 (v)] A conducting-liquid (mercury) switch comprises a sealed insulating container 1 10 having annular electrodes 2, 3 embedded in its walls midway between the base and cover, and a channel la cut in each side from top to bottom at the point where the electrodes are spaced from one another. A piston 7 has rounded ends so as to provide a mercury reservoir 7c in the closed position, the mercury-level when the piston is raised, being below the electrodes. A bulge 18 on the rod 8 engages corrugations of a spring clip 17 to hold the piston in position. notches 19, 20 prevent the formation of a continuous conductive layer from electrodes to mercury, and the piston may be of insulating or conducting material. If mounted on a vehicle which overturns, the circuit through the switch is broken, but can be reclosed by moving the piston to its opposite position. Circuit is also opened if the vehicle turns on its side. The channels 1a may be replaced by spiral grooves when the device is used on a boat, Fig. 9 (not shown). In a modification, Fig. 3 (not shown) the piston is in two frusto-conical parts, the electrodes and casing being correspondingly tapered. In another form, Fig. 4 (not shown), the whole container can be rotated about a longitudinal axis for correctly positioning the conductors in relation to terminals 4, 5. Either or both electrodes may be sub-divided as shown at 51, 52, 53 and 56, 57, 58, Fig. 7, to adapt the device to a number of circuits such as are used on motor vehicles, for traffic signal lights, or for lighting signs. Two forms of switch employed on a car-battery for connecting adjacent cells are also described.
Patent GB-510282-A (GB)
Title: Improvements in crimping threads, filaments and the like
IPC: D02G1/00
Filed: 1938-04-27
Abstract: 510,282. Crimping; artificial silk. COURTAULDS, Ltd;, and COBB, H. P. April 27, 1938, Nos. 12555 and 12556. [Class 120 (iii)] [Also in Group IV] Threads are crimped by delivering them on to the outer surface 6, Fig. 1, of an endless moving conveyer 3 at a point where the peripheral speed is greater than the linear speed of the inner surface of the conveyer, carrying the thread along until the peripheral speed has been reduced to the lower linear speed, fixing. the crimp and removing the crimped thread, as at 8. The speed of delivery of the thread on to the conveyer may be equal to, or greater than, the peripheral speed of the conveyer. The conveyer may consist of a thick flexible band, as in Fig. 1 with or without transverse cuts, or a series of transverse slats 3, Fig. 12, mounted on a flexible backing; in this embodiment the thread may be forced into the open slots of the conveyer by air or liquid blasts from jets 12. The threads may be subjected to further liquid treatment, e.g., to complete the coagulation of artificial silk threads, by liquid from spraying devices 10. The crimp is fixed, e.g., by liquid or heat treatment, and whilst such fixing is taking place the crimp may be held by mechanical pressure, e.g., by rollers or a travelling belt.