baber/WOPTO huggingface dataset:
Patent GB-1104266-A (GB)
Title: Improvements in or relating to electrical illuminated message display signs
IPC: G09G3/24
Filed: 1966-04-18
Abstract: 1,104,266. Illuminated display sign. GENERAL ELECTRIC CO. 18 April, 1966 [19 April, 1965], No. 16857/66. Heading GSC. An electrical illuminated message display sign has a plurality of serially connected display lamp panel sections 21, 20 . . . each panel having a plurality of rows of lamps; a plurality of serially connected logic transfer circuits (37), Fig. 8 (not shown), each controlling the pattern of illumination in a row of lamps; a plurality of electrical conductors interconnecting in series the logic transfer circuits associated with adjacent display sections; and switching means connected in selected conductors for producing predetermined optical effects, for example recirculation, inversion, tunnelling or negative writing of characters within the sign. With switch 88 in the N position, logic output V lo  of display panel section 21 continues through the remainder of the sign. With switch 88 in the C (circulate) position, the input of display panel 20 is connected to the output of the circulation loop, for example the output of panel section 20, causing recirculation of any message present in the loop. Switching circuit 92 enables the circulation of an optional input to the circulation loop. The message not being circulated can be caused to reappear beyond the circulation loop by means of switching circuit 94. In the tunnel position T of the switches the output V lo  of panel section 21 is connected to the input V li  to panel section 19. Switching circuit 90 in the I (invert) position operates to invert the characters comprising the message on the display sign. Negative writing on the sign i.e. non-illuminated lamps on an illuminated background may be obtained by inserting between panel sections (21), (20) a switching circuit (104) for inverting the logic being transmitted to panel section (20) (Fig. 7, not shown).
Patent GB-1107317-A (GB)
Title: J-k flip-flop
Inventor: FOSTER PHILIP BRANNON
IPC: H03K3/286
Filed: 1967-04-13
Abstract: 1,107,317. Transistor J.K. bi-stable circuits. MOTOROLA Inc. 13 April, 1967 [23 June, 1966], No. 16915/67. Heading H3T. A cross-coupled type transistor bi-stable circuit which operates in the " JK " mode, that is in which coincident pulses applied to the " SET " and " RESET " terminals cause the state to change over, has a capacitor in series with each input terminal and respective transistors for rapidly discharging it as the circuit changes over. The circuit shown comprises a basic bi-stable circuit consisting of two main transistors 12 and 13 having a common emitter current source 30, 31 and cross-coupled via emitter followers 10, 11, output emitter followers 95, 96 also being provided. The circuit is symmetrical and the left-hand side will only be described (reference being made to the waveforms of Fig. 2, not shown). Setting to the state in which transistor 12 is conducting is effected by either of two transistors 22, 26, each in parallel with the main transistor 12 and which are lightly back biased at their emitters by a resistor 31 to provide noise immunity. Rendering either of these transistors conducting diverts the bi-stable circuit current from transistor 12 to resistor 17 so changing over the circuit, the Current transferring to transistor 12 when 22 and 26 become both non-conducting. Conduction of 22 is controlled by a logic and steering gate comprising parallel transistors 41, 42 and 56 of which 41 receives the " J " input (Fig. 2a) 42 the clock pulses (Fig. 2b) and 56 a steering control signal. When main transistor 12 is non-conducting, transistor 58 receives only a small base voltage and concurrent reduction of the " J " and clock voltages towards the same voltage lowers the potential of the common emitter point 43. This is not appreciably transmitted to point S through the capacitor 65 since a clamp transistor 70 rapidly charges the capacitor (t1 Fig. 2c). At the end of clock or " J " pulse, point 43 rises negatively carrying with it point S (t2, Fig. 2c) making transistor 32 conduct and so changing the circuit to the state in which 12 conducts. Capacitor 65 is then rapidly discharged through a transistor 67 which becomes conductive on the change over. Had transistor already been conducting the clock and " J " input would have been ineffective since point S would be locked to the negative potential at the base of 56 (t3, Fig. 2c). The right-hand side of the circuit would not have been so inhibited and concurrent clock and " K " signals even if also concurrent with a " J " signal would have caused change over to 13 conducting. The clamp transistors 70 and 74 have a temperature responsive bias circuit to compensate for changes with temperature of the bias and the common emitter point 34.
Patent GB-613010-A (GB)
Title: Improvements in or relating to aircraft navigating and training apparatus
IPC: G09B9/32
Filed: 1944-09-05
Abstract: 613,010. Training aviators. DEHMEL, R. C. Sept. 5, 1944, No. 16941. Convention date, Aug. 14, 1943. [Class 4] Apparatus for use in operational aircraft and in grounded aircraft training devices contains an optical projection apparatus by which an image of terrain (or of a simulation thereof) which may include moving objects such as aeroplanes is projected into the view of the operating personnel of the aircraft or training device, the image varying in scale factor, speed and direction of motion in accordance with the manipulation of the controls by the personnel. In Fig. 1 (which shows the application of the invention to a trainer of the type disclosed in Specification 611,304) the table 24 supports the course-charting device of an aireraft trainer comprising a driving head 20, controlled as to its speed and direction of movement over the table by motors operated by the user and mounted in a main pantagraph linkage with a stationary pivot 5, the optical projection apparatus 45 having the movement of the driving head 20 reproduced in it to scale by the secondary linkage including the links 16, 17. The optical projection apparatus 45, shown by Fig. 2 over the table 24 as projecting an image 94 from a picture 19 to be viewed by means of sight 90, has its casing 46 oriented to correspond with the driving head 20; the gear-connected prisms shown are rotated from the motors driving the head 20 to maintain the image unreversed relative to the picture 19. The picture 19 may be traversed by a motor-driven cord 38 and has upon it a picture 100 which can be separately traversed by a cord 101 running over pulleys mounted so as to adjust the direction of movement of the picture 100. The pivot-pin 13 of the pantagraph moves in correspondence with the head 20 and is used for varying radio signals, the effects of wind drift on these being introduced by cord 38 moving the controller 35 in guides 36 and 37. In a modified form of projection apparatus the prism system presents a reversed image.
Patent GB-356704-A (GB)
Title: Production of stereoscopic pictures
IPC: F24C15/02
Filed: 1930-06-02
Abstract: 356,704. Stereoscopic photography and kinematography. KANOLT, C. W., 450, 4th Avenue, New York, U.S.A. June 2, 1930, No. 17029. Convention date, June 14, 1929. [Classes 97 (i) and 98 (i).] Stereoscopic still or motion pictures are produced by exposing a sensitive surface in a camera to light from successively changing points of view of the object, means for exposing a number of restricted areas only of the sensitive surface, e.g. a line screen, being located in front of the sensitive surface and moved across it in synchronism with the movement of the image. In one form for the production of still pictures a mirror 4, Fig. 1, of ellipsoidal form is mounted above the camera 1 and a mirror 3 rotated by means of an electric motor 14 through gearing 10 .. 13 reflects light from different points of the mirror 4 to the lens 2 of the camera. A line screen is moved across the sensitive surface by the means described in Specification 117,342, [Class 97 (i), Optical systems &c.], being driven through the flexible shaft 15 from the gear 12. In a modification for kinematography the mirror 3 is replaced by a polygonal reflector as shown in Fig. 4, and the line screen is operated from the camera shutter through a system of levers. In a further modification the ellipsoidal mirror is replaced by a series of plane mirrors, the rotating mirror being then moved in steps, and an additional shutter being provided to screen the sensitive surface each time the rotating mirror is moved. The mirror 4 may be replaced by a convex lens and the mirror 3 by a rotating prism.
Patent GB-1401138-A (GB)
Title: Food storage and dispensing assembly
IPC: A47J39/02
Filed: 1973-04-10
Abstract: 1401138 Heated food carriers R GRANDI 10 April 1973 [14 April 1972] 17041/73 Heading A4D A food storage and dispensing unit includes a tray body, in the form of a rectangular casing 6 containing a heat insulating mass 1, having recesses 3, 4 which are intended to contain cold foodstuffs. The tray body also has a further recess enclosing a bowl-shaped receptacle 7, the upper peripheral edge portion 8 of which projects slightly above the mass 1. The receptacle 7 contains an electrical resistence heating element 14 immersed in a heat storage liquid 15, e.g. oil, for keeping dishes (not shown) of foodstuffs placed in the receptacle in a hot condition. A stacking cover 10 having a recess for receiving the edge portion 8, forms with the mass 1 a thermal barrier for preventing heat from the receptacle 7 from being transferred to the cold recesses. A plurality of trays and covers may be carried on a wheeled trolley.
Patent GB-964374-A (GB)
Title: Apparatus for collecting,digging and transporting loose materials (sand,gravel,coal and the like)
IPC: E02F3/54
Filed: 1962-05-03
Abstract: 964,374. Drag scrapers. C. DOMENIGHETTI. May 3, 1962 [May 3, 1961], No. 17055/62. Heading B8E. [Also in Division E1] Mounted beneath for movement to and fro along a guide beam is a drag scoop that is caused by suitable means associated with the beam to be automatically emptied at a given point in the passage of the scoop along the structure. The boom is preferably so pivoted at one end that it may be swung vertically and horizontally. The scoop is supported from a carriage that is movable along a guide track on the underside of the beam by ropes 1, 15, and 3, the ropes 1 and 3 going to a winch or winches mounted on the beam adjacent the pivoted end thereof. The rope I to which is secured the rope 15 draws the carriage towards said end and the rope 3 away from said end. Emptying of the scoop is caused by the engage-. ment of hook couplings 13, 14 and tensioning the rope 3 whilst slackening off the rope 1. The scoop is tipped up and emptied until it contacts a plate 4 on the rope 3 to cause a spring-biased lever pivoted on the carriage 6 to free the couplings 13, 14 to allow of the carriage being drawn back along the guide beam.
Patent GB-293192-A (GB)
Title: Improvements relating to knobs and handles for doors, cupboards and the like
IPC: E05B3/04
Filed: 1927-06-28
Abstract: 293,192. Hargreaves, W. June 28, 1927. Knobs and handles, attaching.-The knob A of a door &c. handle is secured to the square spindle B by means of a plate C having a slot c through which the spindle passes, the plate being urged by a spring c<1> so that the edge c<3> of the slot engages one or other of a number of serrations provided on one face of the spindle. The plate is housed in a flanged fitting D secured to the knob by screws d<1> or by spinning the flange of the portion E of the knob, and release is effected by inserting a suitable implement through an aperture d<3> to depress the plate against the action of the spring and disengage the edge c<3> from the serration. A further flanged fitting F may be secured to the door and surrounding the fitting D, fitting F having an aperture (not shown) normally out of register with aperture d<3>, but through which the releasing implement can be inserted when the two apertures are brought into register.
Patent GB-1431679-A (GB)
Title: Impellers for cross-flow fans
IPC: F04D29/28
Filed: 1973-04-10
Abstract: 1431679 Transverse-flow fans K O L WALLMAN 10 April 1973 [12 April 1972] 17226/73 Heading F1C In a transverse-flow fan impeller comprising blades extending in the axial direction of the impeller and fitted into inwardly extending slots formed in the periphery of each of two or more support discs, the blades are formed at the locations whereat they are fitted into the slots so as to have transverse portions of less curvature than the blade adjacent these locations and of a longitudinal extent equal to the disc thickness. Each such portion is in the form of a crease formed by pressing the blade 6, Figs. 7 and 8, inwardly from the convex side 9 so as to form an intermediate wall 10 flanked by side walls 11, the spacing between the walls 11 being substantially equal to the thickness of the disc 3 so that when the blade is slid into a slot 7 in the disc, the walls 11engage around one edge 12 of the slot. The slot 7 is straight and the wall 10 is slightly curved, or vice versa, whereby the blade becomes clamped into the slot with the centre of one surface of the wall 10 engaging the slot edge 12 and the two ends of the other surface engaging the other slot edge 14. As shown, the length of the crease may be less than the blade chord, the blade being notched for this purpose at each end of the crease before or after the crease is formed. Instead, the blade may be without notches, and in this case the crease has, in addition to walls 11 engaging the slot edge 12, further walls 18, Fig. 11, at one or both ends of the crease to engage the slot edge 14. In the case shown, in which the walls 18 are provided at one end only of the crease, the edge 14 of the slot 7 is curved at 19 to follow the blade contour. After insertion of the blade into the slot, a projecting part 21 is deformed into the position 20 to close the slot.
Patent GB-1283152-A (GB)
Title: Metal halide discharge lamp
Inventor: SPEROS DIMITRIOS MANDAMADIOTIS
IPC: H01J61/20
Filed: 1970-04-10
Abstract: 1283152 Metal-halide lamps GENERAL ELECTRIC CO 10 April 1970 [19 May 1969] 17261/70 Heading HiD The filling of a metal-halide lamp contains an inert gas e.g. 25 torr of argon, SnCl 2 , Sn and/or SnI 2 , such that the reactivity of free chlorine produced in the discharge is reduced by an excess concentration of tin. Excess tin getters free Cl 2  and 0 2  which are present and also combines with the C1 2  released by dissociation of the SnCl 2 . SnI 2  combines with C1 2  to release less reactive I 2  and aids regeneration of tungsten electrodes. The lamp envelope 2 is of fused silica and the tungsten electrodes 5, 6 are welded to molybdenum leads 9, 10. The spectral emission of the lamp is stated to be similar to that of a black body at 5500‹ K.
Patent GB-409148-A (GB)
Title: Thread supply device for shoe stitchers
IPC: D05B15/04
Filed: 1933-06-17
Abstract: 409,148. Sewing-machines. ROWLEY, H. E. G., 9, Warwick Court, Gray's Inn, London.-(Landis Machine Co. ; 201, Gano Avenue, St. Louis, Missouri, U.S.A.) June 17, 1933, No. 17323. [Class 112.] In a lock-stitching machine of the McKay type in which the shoe-supporting horn has a thread passing upwardly therethrough, a takeup lever is pivoted in the horn and the horn also houses a thread lock device, the take-up lever during a portion of its movement releasing the thread lock. The horn 5 rotates freely on the tubular shaft 7. The horn thread L passes upwardly from a spool through a wax pot 8, stripper 9, about a tension wheel 10, over guide rolls 11, between which it is engaged by a measuring hook 12 and enters a hollow tube 13 in the horn shaft. The thread then passes over a locking roller 14, tension roller 16, guide roller 15, upper roller 17, downwardly over the take-up roller 18 and upwardly to the usual whirl in the tip of the horn, the whirl laying the thread over the barb of the needle 19. A locking lever 20 is pivoted in the horn at 21 and its upper tip 22 is thrust against the locking roller 14 by a spring 23 which thrusts outwardly on a collar 24 adjustably on a rod 25 attached to the lower end of the lever 20 so locking the thread. The thread locking lever 20 is moved to lift its tip 22 from the thread by movement of a cam 26 on the take-up lever 27 pivoted at P. The face of the cam 26 is eccentric as regards the pivot P. The cam 26 engages the roller 28 on the locking lever and moves the lever 20 to release the thread nipped between the tip 22 and roller 14. The take-up lever 27 is operated through a cam on the main shaft 30. Specifications 402,005 and 409,149 are referred to.
Patent GB-545199-A (GB)
Title: An improved means for separating the sections of masts or poles
Filed: 1940-12-05
Abstract: 545,199. Extensible posts; handtools. POLES (1938), Ltd., and SCRIVENER, W. C. Dec. 5, 1940, No. 17346. [Class 20 (i)] [Also in Group XXIII] A handtool for use in moving relatively movable parts of tubular posts, comprises an outer member 7 and an inner member 6, the inner member having a fixed pin 5 on which is rotatably mounted a snail cam 9 fixed to a lever 10, and the outer member carrying a detachable pin 8. The end 13 of the outer member which acts as an abutment to the cam is made of hardened steel. The pins are adapted to be inserted into apertures in the relatively movable members of the post.
Patent GB-1130728-A (GB)
Title: Bistable fluid amplifier
IPC: F15C1/10
Filed: 1966-04-20
Abstract: 1,130,728. Fluid amplifier. CORNING GLASS WORKS. April 20, 1966 [April 29, 1965], No. 17346/66. Heading G3H. When pressurised fluid i.e. gas or liquid, is connected to an aperture 26 of a bistable fluid amplifier, a power stream issues from an orifice 28, and 'locks-on' to one of the outlets 32, 34 e.g. outlet 32, and flows to an outlet 40, part of this stream flows through an auxiliary control orifice 44 and passes to an exhaust port 54. A signal at one or other apertures 60, 62 will impinge on the stream from orifice 44 causing it to be deflected to a power stream control-orifice 36 where it deflects the power stream to the other outlet 34 at which control is effected by an identical set of outlets apertures and orifices. The amplifier provides high pressure and flow gains. The amplifier is formed by two or three plates of metal, glass, ceramic or plastics material bolted, sealed or bonded together. The outlets 40, 42 are connected to digital or analogue circuit elements or to visual indicators, transducers, diaphragms or pistons. The signal apertures 60, 62, 68, 70 are connected to transducers, other fluid amplifiers, output gating devices, AND and NOR devices or valves.
Patent GB-175223-A (GB)
Title: Improvements in or relating to baking tins or the like
IPC: A21B3/13
Filed: 1921-06-24
Abstract: 175,223. Lynen, P. D., and Barttett, r. June 24, 1921. No Patent granted (Sealing fee not paid). Baking-tins; handles.-To remove the contents from a baking-tin, cake tin, &c., a cutter c, pivoted at the centre of the bottom, and lying close to the bottom and side, is rotated by means of a handle E, which may be of non-conducting material, operated from the side of the tin. In a modification, the cutter extends up both sides of the tin, and the ends are connected by a detachable handle, which spans the tin.
Patent GB-957474-A (GB)
Title: Improvements in or relating to belt buckles
Inventor: MOORE RODNEY ALEXANDER
IPC: A44B11/25
Filed: 1961-05-12
Abstract: 957,474. Buckles. CONWAY CAR ACCESSORIES Ltd. May 11, 1962 [May 12, 1961], No. 17443/61. Headings E2A and E2B. A buckle comprises male and female parts 20, 2, part 2 being formed with flanged walls 8 for slidably supporting a latch plate 4, and the part 20 having tongues 22 bearing projections 24 engageable with apertures 10 of the part 2. The latch plate 4 is spring-biased to the fastened position where a step 34 abuts the edge of the projections 24 to prevent displacement. A hand grip 36 is provided to assist release of the device by axial displacement of latch plate 4. In a modification the abutting parts of the projections and the step are chamfered.
Patent GB-313518-A (GB)
Title: Improvements in brake mechanism for vehicles
IPC: B60T13/50
Filed: 1929-06-07
Abstract: 313,518. Bosch Akt.-Ges., R. June 13, 1928, [Convention date]. Fluid-pressure. - In a fluid-pressure brake system for a train of vehicles the brakes on the tractor are applied by pressure or vacuum and. those on the trailers are applied by springs or other energy storing device and released by fluid pressure or vacuum under the control of a common valve mechanism. A lever or other mechanical means provided for releasing the brakes on a detached trailer and adapted to be locked in the release position is arranged to be unlocked by the fluid-pressure or vacuum to ensure the operation of the brakes when the vehicle is coupled up. A vacuum system in which the vacuum is produced by the suction of the engine of the tractor vehicle is shown. The tractor brake cylinder 20 is connected to the valve chamber 2<1> and the trailer brake cylinder 7 to the valve, chamber 2<11> by the pipe 1<1>. The pipe 1 from the engine suction pipe is connected directly to the chamber 2<1> and through a reservoir 5 provided with a non-return valve 4 to the chamber 2". The chamber 2<1> contains suction and atmosphere valves 23, 26 seated by a spring 27, the stem 25 of the one valve being slidable on that 24 of the other. The chamber 2<11> contains similar valves 28, 31. In the normal position of the pedal 38 the valves 26, 28 are unseated by the engagement of levers 35, 36 with their respective stems, and the valves 23, 31 are seated so that the tractor cylinder 20 is open to atmosphere and the trailer cylinder 7 is exhausted to hold the trailer brakes off against the action of the spring 10. By depression of the pedal the valves 26, 28 are seated and the valves 23, 31 are unseated, thus effecting the application of both sets of brakes. If the trailer breaks away the brakes thereof are applied by the breakage of the pipe 1<1>. The brakes on a detached trailer can be released by a hand lever 13 shown as engaging a pin 14 on the piston rod and locked in the release position by a detent 13<1>. To ensure that the brakes are not locked in the released position when the vehicle is coupled up, the detent 13<1> is connected to the piston of a cylinder 17 communicating with the system whereby the lever is unlocked when the vacuum is established in the pipe P.