baber/WOPTO huggingface dataset:
Patent GB-790193-A (GB)
Title: Improvements in or relating to aircraft
Inventor: DAVIDSON IVOR MACAULAY
IPC: B64C9/38
Filed: 1953-08-12
Abstract: 790,193. Aircraft. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. July 30, 1954 [Aug. 12, 1953], No. 22267/53. Class 4. An aircraft comprises a pair of wings having lift control means extending along the trailing edge of each wing, and such that the aircraft can be sustained with the wings at substantially zero incidence, and the product of the tailplane area and its distance from the aerodynamic centre C of the aircraft being such that this centre is located rearwardly of the mid-chord point X of the wings. The lift control means may be wing flaps, or a long shallow jet stream issuing from the trailing edge of the wings. In this latter case, the jet stream can be deflected upwardly or downwardly by small chord trailing edge flaps 4. The pilots' control is shown in Fig. 4. The yoke 19 is held fast, and forms a bearing for pivots 13 on the column 12. A rod 10 supporting the wheel 11 extends through the column and bears at its lower end a beam 14 connected to rods 15 attached to the servo-motors operating the flaps 4. Thus fore- and-aft movement of the wheel 11 moves rods 15 for pitch control whereas rotation of the wheel moves rods 15 differentially for roll control. Alternatively, a yoke 24 may be held fast, fore-and-aft movement of the wheel then actuating yoke 19 and rod 20 to adjust elevators 3b or all moving tailplanes, control in roll being again by differential movement of rods 15. Specifications 787,012 and 790,194 are referred to.
Patent GB-724372-A (GB)
Title: Improvements relating to convertible settee furniture
IPC: A47C17/16
Filed: 1953-08-13
Abstract: 724,372. Bed-settees. DOUBE, G. J. Aug. 13, 1953 [Aug. 13, 1952], No. 22389/53. Class 52 (2). A bed-settee is arranged and constructed so that the back rest comprises a unit which is detachably secured to the seat frame to form a settee or a double bed and alternatively to be removed and, with the seat section be used as single beds. The seat frame 12 comprises upstanding ends 12<SP>3</SP> and front 12' to confine the cushion 10 and transverse members 12<SP>6</SP> which project rearwardly and serve as supports for the back rest 13 in settee position. For this purpose the ends of the transverse members 12<SP>6</SP> are provided with a sloping upper surface which is intended to be normal to the slope of the back rest, a projection 12<SP>9</SP> serving as a retainer. The back rest in settee position is held by end stays 15 and by detachable flexible straps 16, the cushion 11 of the back rest extending downwardly behind the cushion 10. To arrange as a double bed the stays 15 and straps 16 are released and the side member 13<SP>2</SP> of the back rest closed up to the side member 12<SP>2</SP> of the seat section in which position, when the back rest is brought to the horizontal position, nibs 19 engage notches 20 and the feet 13<SP>4</SP> are brought into operative position. When the back rest is removed altogether to serve as a single bed, the other feet 13<SP>5</SP> are also lowered.
Patent GB-206929-A (GB)
Title: Improvements in roads or the like and in blocks therefor
IPC: E01C3/00
Filed: 1922-08-17
Abstract: 206,929. Bateman, F. Aug. 17,1922. Paving blocks. - Hexagonal or octagonal cement or concrete blocks a forming a road foundation have holes b, c to receive a diamond-shaped reinforcement d which preferably runs from kerb to kerb. Each block is provided with a groove f, slots g and a central hole h leading to the hole b. Cement grout introduced through the holes h passes into the slots and grooves and keys the blocks together. Square filling-blocks are employed with the octagonal blocks.
Patent GB-868173-A (GB)
Title: Gas burners
Inventor: STOHRER CHARLES EMIL
IPC: F23D14/58
Filed: 1959-06-30
Abstract: 868,173. Gas burners. HARPER-WYMAN CO. June 30, 1959, No. 22458/59. Class 75(1). A gas burner comprises a ring of narrow elongated discharge slots 40 and a second ring of discharge ports, parts of which are disposed below the slots 40. As shown the second ring of discharge ports comprises circular apertures 44 and slots 42 arranged alternately. In a modification the second ring of discharge ports comprises slots disposed between but lower than the slots 40. The discharge apertures are formed in an aluminium cap 14 detachably secured to a steel base 12 having an inner wall 24 which slidably receives the inner wall 26 of the cap 14.
Patent GB-1153607-A (GB)
Title: Self-Levelling Lifting Frames for Containers
Inventor: LEHTONEN KEIJO
IPC: B66C13/50
Filed: 1968-05-13
Abstract: 1,153,607. Self-levelling lifting frames for containers. KONE OSAKEYHTIO. 13 May, 1968, No. 22552/68. Heading B8H. A self-levelling lifting frame comprises a lower part 2 which engages a container and is moved by a ram 20, 21 with respect to an upper part I to centralize the centre of gravity of the loaded container. The lower part 2 is suspended by a trolley 5 and links 4 from the upper part 1 and wheels 7 of the trolley, which run on the underside of rails 8, are eccentrically mounted on axles 6. Thus, if the container is unbalanced, the axles 6 rotate and one or other of spring-loaded arms 12, 15, which are fixed to the axles, operates one or other of limit switches 18, 19. The latter control the operation of the ram and when the ram has moved the centre of gravity of the container to a central position the forces tending to rotate the axles 6 balance and the arms 12, 15 return to their inoperative positions.
Patent GB-656583-A (GB)
Title: Improvements in or relating to interchangeable price ticket or like display devices
IPC: G09F7/08
Filed: 1948-08-27
Abstract: 656,583. Signs. MIDGLEY, G. Aug. 27, 1948, Nos. 22576 and 29552. [Class 3(ii)] A display or price ticket device comprises a frame adapted to be held substantially upright by tongue and groove or equivalent engagement with a support in the form of a pedestal, tag or stem, interchangeable information carrying tablets fitting edge to edge into the frame. The frame 21 is supported on one or more pedestals 23 as shown in Figs. 2, 9 by means of a tongue 22 engaging a groove in the frame. The frame mounts, in grooves 26, interchangeable tablets 27 of transparent plastic having contrasting symbols. the width of the tablets causing it to bow outwardly. An auxiliary frame 36 may be mounted in a groove 24 at the top of the frame 21 and this frame mounts a tablet 39 in grooves similar to that in the frame 21 but arranged vertically. Two or more frames 21 may be positioned side by side, being held together by a strip which enters grooves on the rear of the frame, of similar construction to the label holding grooves 26. The base member 23 may have a groove on its underside to take a triangular spike and this spike may have a keyhole slot to enable the sign to be used inverted hanging from a projection. When a long spike is needed the back of the frame may have a dovetail-shaped groove to take it. In a modification, Fig. 14, a pedestal 53 supports two uprights 50, 51 by means of a tongue and groove connection. One upright has a side groove 58 and the other a side tongue 59, and both have top grooves. These uprights mount between them a plurality of tablets 54 each having a tongue on the base and one side and grooves on the other two sides so that the tablets interlock with the pedestal 53, the side uprights 50, 51 and an auxiliary tablet 61 having a tongue 62 which is positioned over the uprights 50, 51. The Provisional Specification describes a frame to which symbol-carrying tablets are attached by rubber suckers. Specification 656,600 is referred to.
Patent GB-142381-A (GB)
Title: An improved device for use in centering and marking the centre of work
IPC: B25H7/00
Filed: 1919-09-13
Abstract: 142,381. Wilson, H. Sept. 13, 1919. Centre punches.-A centring-device for shafts and the like comprises a quadrilateral frame of equal links a pivoted together by pins b adapted to slide in perpendicular slots e of a cruciform member c having a central aperture for a centre punch d. The tool is placed over the end of a shaft, and the links a pressed against the shaft, the centre punch then registering the centre. One of the slots e may be dispensed with, leaving one of the pivots b free.
Patent GB-707852-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: A61B6/02
Filed: 1952-09-09
Abstract: 707,852. X-ray apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 9, 1952 [Oct. 16. 1951], No. 22602/52. Class 98(1) Stereoscopic fluoroscopy apparatus comprises two spaced sources of penetrating radiations positioned to project their beams alternately through an object on to a fluorescent screen for producing two light images of the object, means for producing electron images which are replicas of the light images, means for projecting the electron images on to an electron phosphor screen to produce replicas of the light images thereon which are substantially brighter than the light images generated on the fluorescent screen, and an optical system which allows an observer to see the succeeding light image replicas with alternate eyes only. As shown, X-ray tubes '3, 4 are energized alternately by alternate half-cycles of an A.C. supply 25. Each tube forms an image of the body 7 of the patient on the fluorescent screen 9 of an image intensifier 12, and resultant intensified but contracted images are formed on the output screen 13. These images are viewed through a binocular system 15, 16 and polarizing screens 18, 23, 24. Screen 18 is rotated about the axis of the tube 12 by a synchronous motor so that it rotates through 90 degrees during each half-cycle of the A.C. supply 25. Screens 23, 24 are coupled so as to rotate together, their planes of polarization being always at right-angles. When the apparatus is in use, they are adjusted for the brightest stereoscopic image. This occurs when one screen, say 23, has its plane of polarization parallel to that of screen 18 when tube 3 gives maximum emission. Screens 23, 24 are arranged with their centres at the same distance from the axis of screen 18 and separated by 90 degrees with respect thereto, so that the plane of polarization of screen 24 is at right angles to that of screen 18 and no transmission occurs. The image formed by tube 3 is thus seen by the observer with the left eye only. One half-cycle later tube 4 is emitting, screen 18 has rotated through 90 degrees so that screen 24 transmits and screen 23 does not, so that the observer sees the image with the right eye only. The rapid succession of images produces the effect of a continuous stereoscopic image.
Patent GB-704480-A (GB)
Title: Improvements in and relating to apparatus for severing a ribbon from sheet metal stock
IPC: B23D19/04
Filed: 1951-09-28
Abstract: 704,480. Shearing. AEROFIN CORPORATION. Sept. 28, 1951 [Oct. 12, 1950], No. 22686/51. Class 83 (4) In a machine for slitting a narrow ribbon from a wide strip means is provided for winding reversibly the strip on to two spools. Two spools 4, 5 are mounted on a shaft 9 rotated by an electromotor 12 and selectively coupled thereto by a claw clutch 19 operated by a rod 18. To feed the stock 3 from spool 4 to spool 5 it is passed round guide rolls 23, 25, 33, 26, 26<SP>1</SP> and through a guide 24 and the spool 5 is coupled to the shaft 9. The stock passes between cooperating disc cutters 21, 22 and a ribbon 2 is severed and guided by rolls to a looping device 35 and thence to a finning or other machine. The looping device 35 actuates a wire 47 connected to a lever 45 controlling a clutch in the drive train. The roll 23 is carried by a spring retracted brake lever 67 hinged on a pin 68. During winding the tension of the stock swings roll 23 inwards to force a wedge between spring urged friction pads 56 contacting the spool to release the brake from the spool 4. At the end of the winding operation the brake is applied to the spool 4 to prevent overrun of the driven spool when the driving spool 5 is stopped. The machine is then reversed and the remaining width of stock is fed from spool 5 to spool 4 and the severed ribbon passed through the looping mechanism. For this operation the roll 23 is idle and the stock is passed about a similar roll 23<SP>1</SP> controlling the brake of the other spool. The spools may be made with an adjustable side plate, Fig. 7 (not shown), to said stock of different widths, and the spools may be arranged horizontally or vertically. The stock may be fed through a lubricant tank, Fig. 5 (not shown).
Patent GB-626595-A (GB)
Title: Improvements in or relating to frequency modulation systems
IPC: H03C3/00
Filed: 1947-08-15
Abstract: 626,595. Automatic frequency control systems. STANDARD TELEPHONES & CABLES, Ltd., and GARFIELD, W. L. Aug. 15, 1947, No. 22688. [Class 38 (iv)] [Also in Group XL (c)] Frequency or phase modulation is effected by applying the signal directly or indirectly to the grids of a free-running multivibrator and deriving the modulated carrier wave from the output; and the carrier is maintained at a desired mean frequency by feeding back the output voltage of a frequency discriminator to the control grids of the multivibrator. Fig. 3 shows one form of the system, and Fig. 4 the multivibrator circuit. The signal originating at 19 is applied as a variable bias to the multivibrator 21, the pulse output of which is mixed at 22 with the output of an oscillator 23. The upper side-band, resulting from the mixing of the oscillations from 23 with a harmonic from the multivibrator 21, is selected by a filter 24, multiplied in frequency at 25, again selected by a filter 26, and passed through an amplifier 27 to the radio transmitter. The mean frequency of the multivibrator is maintained steady by feeding back the D.C. output of a discriminator 29 connected to the output of the last filter 26. The multivibrator circuit, Fig. 4, includes condensers 32, 33 for manually adjusting the pulse frequency, and a slider on a resistor 37 in the screen grid circuits for equalizing the mutual conductance of the valves 30, 31. The signal is applied at terminals 48, 49 through a blocking condenser 51 and highfrequency choke 52 to the valve control grids. The frequency-correcting voltage is applied to the grids at terminals 45, 46 through a highfrequency choke 44, and a resistance or impedance 43 for preventing the signal from reaching the discriminator circuits. The pulse output is taken from one of the valve anodes.
Patent GB-605048-A (GB)
Title: Improvements in radio-navigational aids
IPC: G01S1/02
Filed: 1944-11-16
Abstract: 605,048. Radio navigation. PHILLIPS BALHAM WORKS, Ltd., (formerly RADIO TRANSMISSION EQUIPMENT, Ltd.), and BAILEY, C. E. G. Nov. 16, 1944, No. 22762. [Class 40 (vii)] A radio beacon system defining a glide path comprises an aerial system, the radiation pattern of which extends above and below the glide path and a further aerial system, the radiation pattern of which exhibits a minimum at the path and a phase reversal along the line thereof, the radiations from the two aerial systems being modulated by trains of pulses of the same length but different shapes. A radio beacon defining a glide path according to this invention together with a navigational aid according to Specification 580,985 comprises a receiver 1 receiving pulses transmitted by the aircraft. The output triggers pulse generator 2 connected to artificial line 3, short-circuited at its remote end, and from this line a long pulse is derived at 4 and a shorter pulse wholly within the long pulse at 5. These pulses modulate the output of carrier generator 6 at 7 and 8 respectively and the resultant pulses are applied to centre aerial 9 and side aerials 10 to define an approach path as in the above-mentioned Specification. The output from generator 2 is also supplied to saw-tooth generator 11 whose output is a saw-tooth pulse equal in time and duration to the long pulse at 4. The sawtooth pulse is applied to modulator 12, also fed from generator 6, and the output pulses fed in phase opposition to dipoles 13 and 14 equally spaced above and below aerial 9. The pattern of aerial 9 extending all round the desired course is thus used both to define the approach path and the glide path. The whole assembly may be surrounded by a corner reflector and tilted to the angle of the glide path. Alternatively, an attenuator may be introduced into the feed to upper aerial 13 to control the angle of the glide path, the aerial system being erected vertical. Adjustment of glide path angle may be controlled by the length of the pulses transmitted by the aircraft. Reflectors such as paraboloidal mirrors can be used to minimize radiation below a certain angle and consequent ground reflection. For longer wavelengths, however, it may be necessary to use, ground reflection to assist in forming the patterns, the height of the aerials being adjusted to correctly locate the lobes of the pattern. The receiver may be identical with that described in Specification 580,985, the cathode-ray tube pattern for the system described taking the form of an arrow head pointing towards the glide path.
Patent GB-425087-A (GB)
Title: Improvements in nozzles for vacuum cleaners
IPC: A47L9/02
Filed: 1934-08-07
Abstract: 425,087. Vacuum cleaners. FORSALJNINGS AKTIEBOLAGET VOLTA, 2, Norrmalmstorg, Stockholm.-(Assignees of Elektriska Aktiebolaget Volta; Stockholm) Aug. 7, 1934, Nos. 22858 and 22859. Convention dates, Aug. 5, 1933 and Oct. 16, 1933. [Class 8 (i)] A vacuum cleaner has at least two suction mouths 11 and 12, either of which can be put in communication with the suction conduit or hollow handle 18 by a coaxial hollow rotary valve 17 which has openings 20, 21 adapted to coincide with the suction openings 11 and 12 respectively. The suction conduit 18 may be fixed to the valve 17 so that rotation of the said conduit also rotates the valve or alternatively the conduit 18 may be fixed to the casing 10 and the valve operated independently by an external knurled sleeve. The face of the suction mouth 12 may be at an angle to that of the suction mouth 11 and the suction conduit or handle 18 slightly cranked so that on rotation of the handle through 180 the suction mouth 12 lies along the surface to be cleaned.
Patent GB-389728-A (GB)
Title: Improved sound record for reproduction by magnetic or electrical means
IPC: G11B5/78
Filed: 1932-08-15
Abstract: 389,728. Electric and magnetic soundrecords and reproducing - apparatus. VOGT, H., 10, Garystrasse, Dahlem, Berlin. Aug. 15, 1932, No. 22862. Convention date, Aug. 14, 1931. [Class 40 (ii).] A sound-record for reproduction by magnetic or electric means is made on a strip which is then coiled on a central boss to form a disc ; reproduction is effected by a magnetic or electric pick - up from the coil as the disc is rotated, the convolutions of the coil being spaced to admit the pick-up. A narrow spacing strip m, Fig. 5, is secured centrally to the record strip b, which may be of magnetic material recorded by varying magnetization, or, as shown, of insulating material such as enamelled paper, celluloid, cellulose hydrate, &c. on which the sound is recorded in the form of markings pl, p<2> &c. extending from the edges and formed, for example, by intaglio printing with a conductive printing substance. The record strip is coiled on a central perforated boss r, Fig. 1, and the spacing strip is omitted from the outer convolutions which are thus wound close together to stiffen the disc. The pick-up enters between the turns of the coil, to which flexibility is imparted by making inclined slots s, Fig. 5, adjacent to the spacing strip m. Fig. 6 shows an electric condenser pick-up engaging between flexed convolutions of the coil and comprising a thin metal element f with recesses to receive blocks of insulating material i enclosing wire ormetal strip elements g<1>, g<2>. To avoid interference in reproduction between the record markings on opposite sides of the carrier strip, this may be formed of two thin strips with an intermediate protecting layer formed for example of gum mixed with colloidal graphite. The central portion of the record strip may be embossed at intervals in opposite directions in position for these embossed portions to contact and be cemented together in the coiled strip, thus rendering a spacing strip unnecessary.
Patent GB-598615-A (GB)
Title: Improvements in welt turning mechanism for straight-bar knitting machines
IPC: D04B11/32
Filed: 1945-09-06
Abstract: 598,615. Knitting-machines. BLACKBURN & SONS, Ltd., G., START, H. W., and START, E. Sept. 6, 1945, No. 22919. [Class 74 (ii)] In a welt-turning mechanism for straight-bar machines, the welt bar 1, carrying hooks la, is pushed towards the needles 3 to receive the initial course by a slide 4 operated by a cam 25 through a rack 9, pinion 10 and rack 11. Prior to insertion of a welt wire 20 (coupled to the normal take-up mechanism 21) the welt bar is withdrawn by an auxiliary take-up mechanism 13, the slide 4 having been meanwhile retracted by a spring 12. When the welt is knitted, the slide 4 again pushes the welt bar forwards to restore the initial course to the needles. For this movement, a lever 17 is raised by a cam 18 to tilt a hook 14 on the slide 4 into engagement with the welt bar ; the welt bar is thus withdrawn rapidly by the spring 12 to clear the loops from the welt hooks la, which are of the form disclosed in Specification 559,434. The cams 25, 18 may be brought into operation at the required times by the pattern chain.
Patent GB-277007-A (GB)
Title: Improvements in or relating to means for converting the pitching movements of a ship or other floating body into effective energy
IPC: B63H19/02
Filed: 1927-09-01
Abstract: 277,007. Bunk, P. Sept. 1, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 7; 1927]. Wave energy, utilizing.-A ship or other floating body is provided with a number of casings 1, Fig. 3, in which are floats 7 adapted to drive shafts 14 through rope or rack gearing. The shafts 14 drive a shaft 28 continuously in the same. direction, through clutches and spur and sprocket gearing. Each casing may have a contracted mouth 32, and branch pipes 33 provided with valves 34, or a rectangular casing may be provided with plates 42, 43, Fig. 10, the plates 43 being pivoted to strips 44 and to the casing at 45, and the plates 42 being pivoted to the strips 44 and to vertically-adjustable members 47. In order to prevent the passage of a great volume of water past the floats, each is provided with plates 36, 37, Fig. 8, the upper plate being provided with large openings 38 fitted with disc valves 39, and the lower plate having small perforations.
Patent GB-661343-A (GB)
Title: Improvements in or relating to window constructions
IPC: E06B3/44
Filed: 1947-01-30
Abstract: 661,343. Windows. GENERAL BRONZE CORPORATION. Jan. 30, 1947 [Feb. 14, 1946], No. 23057/49. Divided out of 661,265. Class 20(iii) The spaces between vertically sliding window sashes 21 and the vertical guides in the jambs 25 are sealed against weather by a resilient stainless steel strip 83 which is sprung into position and is trapped between the bottom of the channel formed by side flanges 87, 90 of the sash, and a longitudinal bead 86 on the flange 87, the strip extending around the edge of the flange 87 to the other side thereof from which it is spaced. The strip 83 thus presses resiliently against the flange 89 of the jamb and forces the flange 90 of the sash into contact with an insert 91 of selflubricating metal held in the parting strip of the jamb. The upper and lower rails of the lower sash are of rectilinear tubular section and have extension flanges which accommodate and retain resilient metal strips adapted to seal against a flange extending from the lower rail of the upper sash and against the sill part of the frame. The upper rail of the upper sash has a similar sealing strip which engages the upper rail of the frame.