baber/WOPTO huggingface dataset:
Patent GB-1313667-A (GB)
Title: Scanning circuit arrangements
IPC: H04N3/237
Filed: 1970-07-14
Abstract: 1313667 Cathode-ray tube circuits; triangular wave generators LICENTIA PATENT-VERWALTUNGS-GmbH 14 July 1970 [26 July 1969 7 Nov 1969] 34006/70 Headings H3T and H4T In a scanning circuit arrangement for cathoderay tubes in which in order to correct for barrel or pincushion distortion in the line direction, the variably inductive " working " winding of a transductor is connected in parallel with the line scanning coils and the " control " winding supplied with a current of frame repetition frequency, the " working " winding of a second transductor is connected in series with the line scanning coils and its " control " winding is also supplied with a current of frame repetition frequency. With this arrangement the total inductance loading of the line scanning transformer is maintained constant so that variation in fly-back derived EHT, which gives rise to geometric distortions, is prevented. Fig. 1 shows one embodiment in which the " working " winding 8 of the first transductor is connected effectively in parallel with the line scanning coils 4 (supplied from windings 2, 3 on the line scan transformer 1) and the " control " winding 9 connected in series with the frame scanning coils 10, the " working " winding 13 of the second transducter 14 being connected in series with the line scanning coils 4 and its "control" winding 15 supplied with a frame frequency current 15a derived from a winding 16 on the frame scan transformer 12. The current 15a, which has an approximately triangular waveform, is produced by the action of the diodes 21, 22 on the opposite polarity sawtooth voltages 18, 19 a further diode 24 being utilized to clip the peaks 25. Other circuit arrangements for producing the current for the " control " winding 15 are shown in Figs. 2, 3 and 4. In a second embodiment the two " control " windings 9 and 15 are connected in series and the circuit for producing the current 15a includes means for adjusting the magnitude thereof (Fig. 5, not shown). In a modification of the latter circuit the voltage derived from the winding on the frame scan transformer (similar to winding 17, Fig. 1) is pre-distorted so that the triangular current 15a flowing in the " control " winding 15 retains its symmetry despite variation with frequency of the control windings. (Fig. 6, not shown.)
Patent GB-348624-A (GB)
Title: Improvements in driving gear for cycles and the like
IPC: B62M11/00
Filed: 1929-11-09
Abstract: 348,624. Cycle driving transmissions. BUUREN, T. VAN, 9, Hoogeweg, Amsterdam. Nov. 9, 1929, No. 34255. Convention date, Nov. 21, 1928. Void [Published under Sect. 91 of the Acts]. [Class 136 (ii).] In pedal-crank driving-mechanism for cycles &c. the pedal crank 2 is connected by a rod 4 to mechanism driving the axle 11 of the rear wheel and comprising, for example, an endless chain 5 and toothed gearing 9, 10, the rod 4 being provided with a pivot 12, which is movable forwards and backwards around an elongated guide-path 13 in such a way that, during most of the effective part of the stroke, the rod 4 acts as a long and short armed lever, and not merely as a connecting-rod. The rear end 16 of the rod 4 is pivotally connected to, and follows the movement of, the endless chain 5. The guide 13 is carried by a yoke 17 mounted on the lower rear fork 14.
Patent GB-521633-A (GB)
Title: Improvements in armour piercing projectiles
IPC: F42B12/06
Filed: 1938-11-24
Abstract: 521,633. Projectiles. JANECEK, F., and JANECEK F. K. Nov. 24, 1938, No. 34272. Convention date, Oct. 10. Addition to 521,345. [Class 9 (i)]  A projectile for use with a gun having a converging bore and as described and claimed in the parent Specification comprises a hard core 1 surrounded by a soft jacket 6 which contacts with the core at its front and rear ends 2, 8, its intermediate portion being enlarged and spaced away from the core and its rearward edge being bent inwardly and forwardly to engage the reduced or tapered rear end 3 of the core. The formation enables the jacket to collapse on the core during passage of the projectile through the converging bore, the projectile assuming the form shown in Fig. 2 on leaving the gun. The jacket may be provided with one or more driving bands 7.
Patent GB-1518103-A (GB)
Title: Signal receiving and transmitting systems
IPC: G01S7/38
Filed: 1975-08-29
Abstract: 1518103 Radar systems EMI Ltd 29 Aug 1975 [3 Aug 1974] 34302/74 Heading H4D A receiving and transmitting system comprises means for receiving a within pulse, frequency modulated radar interrogating signal, and, in response thereto, radiating towards the interrogating signal source, a frequency shifted signal, to degrade the target nature, and range, data received. The frequency shift may be accomplished by a balanced mixer producing a pair, of up, and down shifted signals Y, or an image rejection mixer producing a single shifted signal. The signals Y are transmitted after a delay # with respect to the unshifted signal X. The system is particularly applicable to a chirp radar system, wherein a transmitted pulse has a frequency sweep characteristic, Fig. 1 (a) (not shown). The receiver frequency characteristic, as a function of time, has the characteristic of Fig. 2 (b) (not shown), traces for display being derived from the received signal, by convolution.
Patent GB-880578-A (GB)
Title: Mechanism for locating and positioning of aircraft
IPC: B64F1/24
Filed: 1958-10-27
Abstract: 880,578. Handling aircraft. BOLTON, P. D. Oct. 27, 1958 [Oct. 28, 1957], No. 34329/58. Class 4. [Also in Groups XXX, XXXII and XXXVIII] Aircraft, after landing, are towed so that the main landing wheels are located on a turntable 52 (see Group XXX) and the nosewheels 60 on a vehicle 64 movable along an arcuate track 54, the turntable 52 being flush with the runway and the vehicle 64 raised thereabove when it is desired to position the aircraft for subsequent towing to a parking position 198 on the airfield.
Patent GB-1324092-A (GB)
Title: Lining and support structure for underground openings
IPC: E21D11/08
Filed: 1970-07-15
Abstract: 1324092 Tunnel lining blocks COMMERCIAL SHEARING & STAMPING CO 15 July 1970 [22 Jan 1970] 34356/70 Headings E1B and E1F An interlocking boltless lining and support structure for underground openings comprises segments 10, Fig. 5, or segments 25, Fig. 3, having interlocked logs and recesses, at least some of the segments being formed from two pieces 34, Fig. 6, connected by a resilient elastomeric member 35. The ends of each segment, in the circumferential direction, may not be parallel to one another and may be radially chamferred to avoid the use of a key piece to complete the ring. The sides of the segments may be grooved so that abutting segments form channels into which grout may be pumped. Grout may also be pumped into the space behind the lining.
Patent GB-1062077-A (GB)
Title: Solidification control device
IPC: F27D27/00
Filed: 1964-08-21
Abstract: 1,062,77. Automatic viscosity control. CALUMET & HECLA Inc. Aug. 21, 1964 [Oct. 14, 1963], No. 34422/64. Heading G3R. The degree of fluidity of molten material is maintained between predetermined limits in a furnace by automatically controlling the heating in dependence on the time taken to move a body through the material. As described, a test rod attached to one end of a lever pivoted horizontally to a framework attached to the outer wall of an induction furnace containing molten metal is normally held out of the metal by a weight attached to the other end of the lever, but is moved down into the molten metal periodically by a solenoid acting on the lever. The solenoid is energized by a periodically operating time switch, and further time switches and relays are arranged so that if the test rod descends far enough to operate a limit switch in a given time, indicating a degree of fluidity above a predetermined value, the energization of the furnace is maintained at a low level. If the limit switch is not operated in the given time, a relay operates to increase heating by changing furnace energization to a higher tapping on a supply transformer and an audible and visual alarm is operated intermittently to indicate this condition. The frequency of operation of the test rod is also increased until fluidity is restored. Should extra heating persist beyond a predetermined period, the heating is automatically reduced and the alarms operated continuously to indicate a fault.
Patent GB-926907-A (GB)
Title: Tip for shoe heels
IPC: A43B21/36
Filed: 1959-10-12
Abstract: 926,907. Heel protectors. E. VAUX. Oct. 12, 1959 [July 1, 1959], No. 34475/59. Class 17 (3). A reinforcing plate 1 in a heel protector is provided with a cavity 2 of polygonal crosssection for receiving the mating part of the means securing the protector to the heel. The plate 1a which is preferably of metal, may be formed as in Fig. 1 and moulded in a protector of plastic material, or the cavity 2 may be formed by struck-out tongues 7b and the plate sandwiched between two layers of leather 14, 15, Fig. 4, or like material, and secured to them by driving in tongues 6a, 7a, 7b, and bending over tongues 6a, 7a. The protector is secured to the heel by a nail 11 having a polygonal head 10 engaging the cavity 2, and supplementary nails may engage the holes 5, Fig. 1.
Patent GB-1380536-A (GB)
Title: Armoured fighting vehicle having an automatic gun loading device
IPC: F41A9/04
Filed: 1973-07-19
Abstract: 1380536 Armoured fighting vehicle DR-ING HCF PORSCHE AG 19 July 1973 [21 July 1972] 34509/73 Heading F3C  An armoured fighting vehicle has an automatic loading device for the main gun 1, the latter being adjustable in elevation and in azimuth and automatically loaded from two conveyer magazines 3, 4 positioned one above the other in a chamber, and extending transversely of the vehicle. Each magazine contains a different type of munition and has a rotatable endless belt 5, the inner loop 8 of each belt lying in a common vertical plane with the breech block 2 of the gun 1. The loading device serves both conveyer magazines and is positioned in a loading chamber 16 of the vehicle. The conveyer magazines 3, 4 are positioned behind the breech block 2 a distance corresponding to the length of a projectile. The loading device comprises a vertical guide member 9 which extends over the whole height of the loading chamber 16 and a motor-driven loading rocker arm 11 which is movable on the guide member 9 and is provided with a differential gear 12 so that the rocker arm can be rotated about a vertical axis and a horizontal axis and be positioned in alignment with the breech block 2, even when the gun is displaced in azimuth and/or in elevation. The conveyer magazine 3 is suspended from a displaceable flap 15, this facilitating the replenishing of both projectiles 6 and 7. In order to fire a projectile 6, it is initially brought by the conveyer magazine 3 into a preparation unit (not shown) which is in alignment with the gun 1. The projectile 6 is then grasped by the rocker arm 11 of the loading device and after partial rotation, if such is necessary due to angular displacement of the gun from the position shown in Fig. 2, is pushed into the breech block 2 of the gun 1. Similarly a projectile 7 may be loaded into the gun.
Patent GB-283546-A (GB)
Title: Improvements in or relating to yarn or like winding machines
IPC: B65H54/42
Filed: 1927-12-21
Abstract: 283,546. Universal Winding Co., (Assignees of Swanson, E. R.). Jan. 13, 1927, [Convention date]. Winding - machines; stopmotions; thread-guides.- In a drum winding-machine a controlling member 30, Figs. 2, 3 and 4, is moved with the winding-mandrel away from the driving-drum as the yarn package Y grows, a dogging member 35 engaging the member 30 so as to resist movement of the winding- mandrel to a greater extent when the latter moves towards the driving-drum than when moving away therefrom. the member 35 being released when the member 30 has moved a predetermined distance to actuate a stopping-mechanism. The member 35 on passing free from the controlling-members 30 releases a detent 59 whereupon the package Y is lifted off the drum 2 and the yarn y is lifted out of the guide 28 which continues to reciprocate. The member 30 comprises a quadrant, adjustable in position, and eccentrically mounted relatively to the pivot 11 of the cop-holder support 10, wherebv the frictional resistance to movement of the member 30 across the end 43 of the slide 35 decreases as the package grows. The cop-holder 3 is lifted away from the driving-drum 2 by a pawl 50 on a swinging lever 52, Fig. 5, engaging a rack 49 on the member 30, a spring 67 rocking the lever 52 to lift the cop-holder when the detent 59 at the end of the rod 56 is released. A manually operated starting-handle 105 is provided and when depressed against its spring 111 to start the winding, actuates means to render the lifting means 49, 50 inoperative and reset the detent 59. Depression of the lever 105 serves firstly to draw back the slide 35 against its spring 45 to the position shown in Fig. 4, the dog 42 being clear of the quadrant 30, and secondly, through the extension 108, to turn the cranked end 58 of the rod 56, raise the lever 52 against its spring 67 and, through a pin 47, to remove the pawl 50 from the teeth 49 and permit the cop-holder 3 to lower on to the drum 2. Depression of the handle 105 also serves to move a lever 120 to hold the arm 86 of the knock-off lever 87 out of the path of the toothed-wheel 95 to prevent arrest of the winding operation at starting. On release of the handle 105 the slide 35 is moved forward to engage the dog 42 with the member 30. On completion of winding the quadrant 30 releases the slide 35 which moves to the right, Fig. 3, and through a lever 78 lifts the arm 86 into the path of the wheel 95 whereby the lever 90 is rocked to tilt the lever 65 and withdraw the yarn from the guide 28. The movement of the member 65 releases the detent 59 whereupon the package is raised off the drum 2. The passing yarn normally supports a member 125. On breakage, the member 125 falls and through the arm 85 raises the member 86 into the path of the wheel 95. Specification 275,543 is referred to.
Patent GB-429948-A (GB)
Title: Improvement in aeroplanes
IPC: B64D5/00
Filed: 1933-12-11
Abstract: 429,948. Aircraft carrying other aircraft. BOULTON & PAUL, Ltd., Riverside Works, and NORTH, J. D., Hill House, Eaton, both in Norwich. Dec. 11, 1933, No. 34787. [Class 4] A compound aeroplane comprises a main aircraft element and an auxiliary aircraft element adapted to contribute lift in excess of its own weight and rigidly but releasably attached above the main aircraft so that they both assist in enabling the compound aeroplane to take off and climb and thereafter by merely releasing the attachments the elements become separated as a result of the air forces acting thereon. As shown, the main aeroplane 1 is designed for long range flight at high speeds with a large load and the auxiliary aeroplane 9 which carries only a light load is a biplane of normal single engine design suitable for carrying large loads with a moderate wing loading. The two components are releasably connected together at points 17, 20, the points 17 being on the undercarriages of the aeroplane 9 and above the undercarriage of the aeroplane 1, and the point 20 being situated on the longitudinal centre of the elements and approximately midway between their wings and tails. The compound aeroplane can be controlled by one of the pilots of the two elements : (a) by interconnecting the controls of the two machines ; (b) by connections released simultaneously with the main connections ; or (c) by locking the controls of one machine in a neutral position, or leaving the control surfaces free to float, the other machine being provided with abnormally large control surfaces to control the compound machine. Either component may be a monoplane, biplane, or multiplane machine and wing slots and flaps may be provided for increasing lift. The engines of the aeroplane 1 may be of supercharged to give their maximum power at a desired altitude. Guide members may be provided at the tail or both the tail and wing tips to control the initial separation, on release of the attachments. The compound aeroplane may take off from a driven and guided trolley.
Patent GB-213323-A (GB)
Title: Improvements relating to dies for making hot metal stampings
IPC: B21J13/02
Filed: 1922-12-22
Abstract: 213,323. Brookes & Adams, Ltd., and Brookes, A. E. Dec. 22, 1922. Forging helical grooves; forging-machines; dies. -A divided die which co-operates with another die to form hot metal stampings is provided with an incline 3, on each part 11, adapted to engage a corresponding abutment so that when the two dies are brought together the parts of the divided die are forced into contact. The die may be divided into two or four parts by axial or inclined planes 12 and inclines 3 together form a cone engaging a corresponding recess 24 in a bed 23. Tapered recesses 21 are formed between the parts and these are engaged by screws 22 so that when the parts are pushed out by an ejector rod 20 they are also separated. When the dividing planes are inclined, as in dies for forging articles with helical grooves, a separate die member 16 to close the bottom of the die cavity is necessary.
Patent GB-419488-A (GB)
Title: Improvements in or relating to electric cables or conductors
IPC: H01B7/29
Filed: 1933-12-12
Abstract: 419,488. Electric cables. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Dec. 12, 1933, No. 34950. Convention date, July 11. [Class 36.] The rubber, guttapercha, or other insulation of a cable or conductor is protected from the effects of light or heat rays by means of an external polished light or white layer, preferably by means of a layer of varnish which contains aluminium powder as the pigment. An aerial lead comprises a conductor 1, a rubber sheath 2 constricted at intervals to position the conductor centrally thereof, a metallic screen 4 of strip tinfoil windings, high conductivity wires 5, a fibrous braiding 6 and an outer coating 7 of aluminium varnish. The outer coating is applied by drawing the conductor through the liquid varnish. Reference has been directed by the Comptroller to Specification, 339,375, [Class 36].
Patent GB-504656-A (GB)
Title: Improvements in or relating to film sound recording systems
IPC: G11B7/00
Filed: 1937-12-17
Abstract: 504,656. Optical sound - recording. WESTERN ELECTRIC CO., Ltd. (Electrical Research Products, Inc.) Dec. 17, 1937, No. 34968. [Class 40 (ii)] Relates to methods of producing " noiseless " double-hump sound-records. Accordng to the invention, a double-hump track is formed by passing the recording light beam through a single triangular aperture 7 in a screen 6 on to an oscillograph mirror 3 by which it is reflected on to a slit 11, the mirror being vibrated about an axis at right. angles to the direction of travel of the film so as to cause the triangular beam to vibrate transversely with respect to the slit ; and a central envelope trace b, Fig. 1, is produced by means of a wedge-shaped mask 15 which is caused to project into the central portion of the beam to an extent varying with the intensity of the sound. Specifications 444,015 and 498,394 are referred to. Reference has been directed by the Comptroller to Specification 422,543.
Patent GB-299231-A (GB)
Title: Improvements in methodical connection of the telephone cable circuits with pupin coils
IPC: H01B11/16
Filed: 1927-12-28
Abstract: 299,231. Viard, G. Dec. 28, 1927. Induction, preventing and minimizing. - At each loading point on a cable, pairs of the cable having substantially the same value of mutual capacity are selected and connected to coils in the loading unit having substantially the same inductance values, the circuits of high capacity being connected to coils of high inductance values. The loading units are preferably distributed between the loading points having regard to the mutual capacities of the cable sections, while in the factory coils may be selected for the loading units on the basis of measurements of the capacities of the cable sections to be used.
Patent GB-1516108-A (GB)
Title: Device for the magnetic orientation of magnetic recording media
IPC: G11B5/845
Filed: 1975-08-26
Abstract: 1516108 Making magnetic recording media BASF AG 26 Aug 1975 [27 Aug 1974] 35149/75 Heading G5R A magnetically oriented magnetic recording medium, comprising a non-magnetic base 4 and an anisotropic magnetic coating 3 containing magnetic particles dispersed in a solidified non-magnetic organic binder is produced by a device comprising a magnetic circuit 1 on each side of the coated base, wherein the edges of the poles 5 are so shaped that the spacing between each pole and the coated base increases in the direction away from the air gap 2. The effect of this is to increase the magnetic anisotropy, i.e. the ratio of remanent magnetic flux in the tangential direction to that in the radial direction in the case of a magnetic disc. The profiles of the poles may follow arcuate or rectilinear paths or a combination of both (Figs. 2a to 2d, not shown). The magnetic circuits are made from pure spheroidized iron or from an iron alloy containing 50% cobalt.
Patent GB-619250-A (GB)
Title: Improvements relating to apparatus for studying fluid flow
IPC: G01M9/04
Filed: 1946-11-27
Abstract: 619,250. Wind tunnels. MURRAY, F. R. Nov. 27, 1946, No. 35229. [Class 4] Apparatus for studying the effect of pressure gradient on fluid flow at a fluid-solid boundary comprises a closed channel, means to induce a flow of fluid therethrough and means to modify the flow conditions in the channel by inducing fluid flow through a permeable portion of the channel wall. In the form shown, the apparatus consists of a wind tunnel of rectangular section, one wall 13 of which forms the test wall and is provided with static-pressure heads 14 and traversing pitot heads 15, 16, the opposite wall having an air-permeable portion 18 in communication with a branch channel 20. Flow through the main and branch channels is controlled by blowers 12, 21 and flap valves 22. The permeable portion 18 of the channel wall may be formed from fin-and-tube radiator matrix, or by a honeycomb structure which may be used to support wire gauze. The apparatus may be employed in connection with diffuser design, airflow in engine duct entries, or boundary-layer flow conditions over aerofoils, the test wall of the channel being shaped to correspond with that of the surface to be investigated.
Patent GB-606539-A (GB)
Title: An improved device for imparting an intermittent rotary motion
IPC: G09F19/16
Filed: 1945-12-31
Abstract: 606,539. Gearing for conveying oscillating motion; ratchet gearing. HARTLEY, G. E. Dec. 31, 1945, No. 35267. [Classes 80 (i) and 80 (iii)] [Also in Group XVIII] Mechanism for oscillating the reflecting shutters of an illuminated advertising sign comprises an electro-magnetic device 17 which oscillates an armature 18 carrying a spring- finger 19. This finger 19 has a tapered end 20 which engages in a corresponding groove 21 of a disc 22 so that in one direction of its oscillation it frictionally drives the disc but not in the other, thereby imparting a step-by-step rotation to it. An eccentric pin 25 on the disc 22 operates through a link 26 and lever 14 a reciprocating member 13 which is provided with slots 12 engaging arms 11 projecting from the lower ends of vertically arranged reflecting shutters 10 pivoted at each end. The spring-finger 19 may be oscillated by other means such as a cam driven by clockwork mechanism.