baber/WOPTO huggingface dataset:
Patent GB-782831-A (GB)
Title: Improvements relating to apparatus for measuring small movements
Inventor: DYSON JAMES
IPC: G01D5/38
Filed: 1954-07-08
Abstract: 782,831. Photo-electric measuring. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. July 6, 1955 [July 8, 1954], No. 20050/54. Drawings to Specification. Class 40 (3). [Also in Group XX] The image of one diffraction grating is projected on to the same or another grating so that the grating lines are slightly mutually inclined to produce moirÚ fringes. The emergent light may fall on a photo-cell so that the movement of the fringes varies the output of the cell. Non- cyclical variation of the output may be used to measure or control the relative movement of the grating and grating image and the cyclical variation may be used to measure the relative movement by fringe counting by means of an electronic counting arrangement. Optical arrangements (see Group XX) for measuring linear and angular movements are described.
Patent GB-318344-A (GB)
Title: An improved sanitary cleansing agent
IPC: C01D5/00
Filed: 1928-07-11
Abstract: 318,344. Pickup, H., and Claringbold, W. E. July 11, 1928. Disinfectants.-A cleansing agent for waterclosets, urinals and the like comprises powdered sodium bisulphate and a quantity of powdered anhydrous sodium sulphate preferably amounting to 20-50 per cent of the mixture.
Patent GB-148335-A (GB)
Title: Improvements in padlocks
IPC: E05B67/14
Filed: 1920-07-09
Abstract: 148,335. Press-und Stanzwerk Neviges Comm.-Ges. Lohe & Hacklõnder., (Assignees of Press-und Stunzwerk Neviges, Lohe, & Hacklõnder). Dec. 21, 1918, [Convention date]. Padlocks. - The shackle b is pivoted on a disk c which is rotated by a key to open and close the shackle, and is locked in extreme positions by one or more spring-controlled locking levers h actuated by the key, pivoted on the disk, and arranged to engage pins f, g extending across the casing through slots d, e in the disk. The edges of an aperture in the casing through which the shackle passes act to rock the shackle in its opening and closing movements. Fig. 1 shows the shackle locked in closed position by the end k of the lever h engaging the pin g under the action of a spring i. To unlock, the key first disengages the lever, then turns the disk, and finally allows the end l of the lever h to engage the pin f to lock the shackle open.
Patent GB-712914-A (GB)
Title: Improvements in or relating to television and like transmitters
Inventor: SUTTON JOSEPH
IPC: H04N5/38
Filed: 1952-05-01
Abstract: 712,914. Valve supply circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 1, 1952 [Aug. 28, 1951], No. 20299/51. Class 40 (6) In a television or like transmitter the grid bias of a linear amplifier is varied in dependence upon the anode voltage so as to maintain the amplifier output substantially constant. A potential divider 9, 10 connected to the anode supply of a linear amplifier (not shown) causes a fraction of the variations in the H.T. supply to be applied to the resistor 12, the grid bias supply for the linear amplifier being derived from the junction of resistors 12, 7. Any variation in potential of the tapping on resistor 12 is fed through amplifier 1 to an absorber valve 3 cathode follower connected so as to vary the grid bias of the line or amplifier. The resistor 10 may be adjusted so that with the desired anode and grid potentials on the linear amplifier no voltage appears across resistor 12.
Patent GB-1293499-A (GB)
Title: Motor vehicle instrument panel element
Inventor: BYER LAWRENCE CHESTER
IPC: B60R21/2165
Filed: 1971-04-19
Abstract: 1293499 Safety bags FORD MOTOR CO Ltd 19 April 1971 [5 Feb 1970] 20434/71 Heading B7B In a motor vehicle passenger compartment a decorative panel is placed between a passenger and an inflatable bag and is made of deformable material having a plurality of lines of reduced thickness to allow an aperture to be formed through the panel due to inflation of the bag. The panel has a plurality of V-shaped grooves 36, 34 preferably in an H-shaped parting configuration along which rupture occurs to cause upper and lower flaps 38 and 40 to be deformed outwardly into the passenger compartment. In a modification, Fig. 6, a pair of grooves 44, 46 of rounded cross-section are provided on the panel to promote easy deformation of the flaps upon rupture of the panel.
Patent GB-152473-A (GB)
Title: A detachable grip for use in connection with beams of bulb and like section
IPC: B63B19/24
Filed: 1919-08-20
Abstract: 152,473. Gray, W. R. Aug. 20, 1919. Hooks.-A gripping-device for securing articles to beams of bulb and like section, particularly in refrigerating-chambers, consists of a hook member A fitting round the swelling of the beam C, and formed with an horizontal portion a, through a hole in which is passed a headed stem d. The beam is gripped between the parts b, c as shown, under the weight of the article suspended from a holder screwed upon the stem d.
Patent GB-294122-A (GB)
Title: Improvements in or relating to clutches or couplings to be engaged and disengaged while in operation
IPC: F16D47/06
Filed: 1928-07-16
Abstract: 294,122. Voith, W., Voith, H., and Voith, H., (trading as Voith, J. M. [Firm of]). July 14, 1927, [Convention date]. Clutches, friction.-In a combined hydraulic and hydraulically-actuated friction clutch, the spaces i between the driving-member g and driven members d of the hvdraulic clutch and the spaces e between the frictionclutch driving-discs c and the members d are so arranged that liquid can pass to and from any space without passing through another. The discs d, which are splined to the driven member f, and the driving-member g are provided on adjacent faces with vanes forming cells h, and, when a hollow piston valve n<1>, Fig. 1, is open, oil supplied from a pipe to a ring l passes through passages m and fills and flows through the clutch spaces q, e, i, expelling air through passages o, p and starting the hydraulic drive. On closing valve n<1>, centrifugal pressure is generated in all the spaces, and when a valve n<2> is opened, the oil is expelled through passages r from the spaces e, q, and the friction clutch is engaged, as shown in Fig. 2. The pressure in the spaces h, i may then be augmented by an auxiliary pressure supply through passages j<1>, j<2>. To declutch, valva n<2> is closed and a hollow equalising-valve n<3> opened, which puts the spaces q into communication with the central spaces h, i, thus relieving the friction-clutch pressure. On closing valve n<3> and opening a valve n<4>, the oil is discharged from the central spaces, the residual oil in the spaces q then moving the discs d from the driving-discs c. More than one valve of each type may be provided. The valves may be controlled by electromagnets, Fig. 4 (not shown), or by fluid means, as shown. Oil is supplied by pipes w<1> - - w' to channels v<1> - - v<4>, whence it flows centrifugally by passages x<1> - - x<4> to chambers y<1> - - y<4> having leak-passages z<1> - - z<4>. While the. coil flow is maintained, the valves are held displaced against their springs, which actuate them when the supply is shut off.
Patent GB-151449-A (GB)
Title: An improved press for cheese, meat and other food stuffs
IPC: A47J27/20
Filed: 1919-08-23
Abstract: 151,449. Davies, D. R. Aug. 23, 1919. Cheese.-In a press for meat, cheese, and other food stuffs, the pressure screw f operates on the pressure disk j through the medium of a spring l mounted in a tube h telescoping in the tubular head d. A projection on the tube h working in a slot serves to prevent rotation of the tube and may also serve as an indicator.
Patent GB-755064-A (GB)
Title: Circuit arrangement for coupling pulse sources to variable loads
IPC: H02M9/04
Filed: 1954-07-16
Abstract: 755,064. Pulse circuits. STANDARD TELEPHONES & CABLES, Ltd. July 16, 1954 [July 21, 1953], No. 20750/54. Class 40 (6). A circuit in which a pulse source is connected via an output transformer to a load the other side of which is connected to a variable potential, comprises means for preventing current flow through the transformer in the interval between pulses from the source, Fig. 1 shows a coincidence-gate circuit of the type described in Specification 682,985, [Group XXXIX], in which positive pulses from an input source es are passed to output O1 only wnen positive control pulses from sources, such as G, are applied via output transformers, such as T1, to all of the inputs m1 n1 p1 simultaneously. In the interval between pulses from source G a pulse from source es will cause a current flow through the secondary of transformer T1 and thence through other output transformers ; thus the load seen from T varies between pulses and the inter-pulse current flow may cause saturation of the transformer. Fig. 2 shows a circuit in which this current flow is prevented by means of a clamping rectifier G1, a shunt resistor R1 and possibly a decoupling rectifier G2. The variable load impedance at input m1 is represented by the variable impedance and source Zx and ex respectively, cs being the effective pulse source acting on the secondary winding of the transformer. Point m1 is also connected via a resistor R1 to fixed source E1 and to a clamping rectifier G1 which has its anode connected to a fixed source E2. It is shown by analysis that resistor R1 and voltage sources E1 and E2 can be given appropriate valves such that no current flows through Zp in the inter-pulse period and that the output impedance for transformer T1, Fig. 1, is constant during pulses. If the pulse from sources G and es are of negative polarity rectifiers G1 and G2 are reversed. Rectifier G2 is only essential when a number of pulse sources are connected in parallel it then provides the necessary decoupling between the sources.
Patent GB-1010181-A (GB)
Title: Improvements in radio communication systems
IPC: H04B7/02
Filed: 1962-05-30
Abstract: 1,010,181. Transmission system. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 30, 1962 [June 9, 1961], No. 20762/62. Heading H4L. A long range communication system operating in the microwave band comprises a transmitter radiating information carrying signals, a receiver, spaced from the transmitter a distance greater than the line of sight distance, which receives the signals after reflection from a region above the terrestrial globe and a second transmitter operating at a frequency different from that of the first transmitter which directs energy towards said region whereby the reception of the signals by the receiver is improved. The second transmitter may be pulse modulated at a frequency which is 3 Î 10<SP>6</SP> times the magnetic field strength of the region in gauss. The second transmitter may be equidistant between the first transmitter and the receiver.
Patent GB-411312-A (GB)
Title: Improvements relating to the emission or reception of radio or like signals by a submerged craft
IPC: H01Q1/34
Filed: 1933-07-24
Abstract: 411,312. Wireless signalling; aerials. URIZIO, G., 28, Via Francia, Pola, Italy. July 24, 1933, No. 20846. Convention date, July 23, 1932. [Class 40 (v).] Wireless communication from a submerged submarine is effected by means of a float a housing the radio-frequency circuits The float is launched to the surface, and the top or cap d removed by suitable clockwork. This releases a small balloon g to elevate the aerial e above sea-level. The lower part of the float contains a spark-transmitter r which is keyed by low-frequency currents from the submarine through leads f, which may be incorporated in the anchoring-wire h. The balloon may be coated with phosporescent material to render it visible at night.
Patent GB-675915-A (GB)
Title: Combined writing-table and drawing-table
IPC: A47B85/02
Filed: 1950-08-23
Abstract: 675,915. Tables. KANN, H. Aug. 23, 1950. No. 20860/50. Class 52 (iii). The top 6 of a table has guides sliding through holes in a hinged block 8 so that it can be tilted about its rear edge and slidably stowed behind the underframe, a lug 23 on the block 8 serving to raise for use a drawing-board 17 normally housed below the table top. Folding stays 19, 20 enable the drawing board to be angularly adjusted about the front links 13.
Patent GB-864163-A (GB)
Title: Improvements in impact tools operated by compressible pressure fluid
IPC: B25C1/04
Filed: 1959-06-18
Abstract: 864,163. Percussive tools. KENNEDY, H. T. June 18, 1959, No. 20953/59. Class 124. A pneumatically operated percussive tool has recuperative springs mounted for compression by a piston during at least a part of its return stroke and a control to admit the pneumatic medium to produce the return stroke and then to produce the working stroke which is assisted by the expanding springs. As shown, a piston 16 movable in a cylinder 17À has a rod 19 to which may be attached weights 20. Compressed air is admitted through a handle 14 and a control valve 43 to raise the piston and compress springs 31, 32, adjustably mounted on rods 25, 26, the control valve then being changed over to admit air to the opposite side of the piston and produce a working stroke which is assisted by the stored energy of the springs. The control valve 43 may be manually operated or may be itself controlled by a servo mechanism 52 and pilot valve 57 arranged in such a manner that the change from return stroke to working stroke is rapidly achieved. Automatic operation of the tool may be obtained by the use of a rod 69 against which a projection 70 on the weight 20 strikes and causes upward movement of a valve member 59 and movement of the vlave 43 to give a working stroke. A thumbpiece 67 on the valve member 59 may be depressed by a spring, the downward movement of the valve 57 being controlled by a dash pot 76. The air for operating the tool may pass through a device in which it becomes loaded with oil for lubrication purposes. Specification 611,042 is referred to.
Patent GB-1386724-A (GB)
Title: Appliance for punching cutting and splicing information carrying  materials
IPC: G06K21/08
Filed: 1973-05-02
Abstract: 1386724 Punching and cutting apparatus PERFORAG Ltd and ELTEBA AG 2 May 1973 [2 Feb 1973] 20969/73 Addition to 1345104 Heading B4B [Also in Division G5] The appliance for punching and cutting information carrying materials as claimed in the Specification 1,345,104 is modified by the addition of pins 30 on the clamping plate 18 for locating a splicing element such that when the plate is moved to its operative position, the element is pressed into contact with the information carrying material located on the base-plate 11 by pins 15. The pins 30 are adapted to enter holes 32 in the base-plate.
Patent GB-1017208-A (GB)
Title: Power change-over switch for tap changers of regulating transformers
Inventor: BRUER WOLFGANG
IPC: H01F29/04
Filed: 1963-05-27
Abstract: 1,017,208. Transformers. E. SCHEUBECK, [trading as MASCHINENFABRIK REINHAUSEN GEBRUDER SCHEUBECK KOMMGES]. May 27, 1963, No. 21069/63. HeadingH1T. In an on-load tap changing system the main load switch parts 1, 2 and 5, 6 each have a closed core choke coil La or Lb connected in series, a resistance R 1  or R 2  being connected as shown so that the chokes La, Lb are connected through them across the diverter resistances Ra 1 , Rb 1 . The chokes La, Lb saturate at very low current values and resistances of R 1 , R 2  are high while the diverter resistances Ra 1 , Rb 1  may be subdivided as shown. On changing from tap A to tap B (selector switches not shown) load switch 1 is opened followed by load switch 2 as diverter switch 3 closes. An arc burns at 2 until current zero is reached. As the current direction reverses La offers initially a high impedance, the arc is extinguished and the load current flows through Ra 1 , the voltage drop across La after it becomes saturated being limited by the drop across Ra 1  and R 1  so that if the choke is suitably chosen restriking of the arc at 2 is precluded. Diverter switch 4 is then closed followed by load switches 5 and 6.
Patent GB-967537-A (GB)
Title: Compressor casing
Inventor: SPENCER PETER JAMES PATRICK
IPC: F04D29/02
Filed: 1963-05-27
Abstract: 967,537. Axial-flow compressors; gas turbine plant. ROLLS-ROYCE Ltd. May 27, 1963, No. 21137/63. Headings FIC and FIG. A compressor casing is formed in at least two sections from synthetic resin material, the sections being connected together by at least one synthetic resin member which overlaps and is bonded to adjacent edges of the sections, and at least one wire is disposed beneath each synthetic resin member so that by pulling the wire or wires, the synthetic resin member or members may be broken to separate the sections of the compressor casing. The term "wire" covers any thin strip of material capable of cutting through the synthetic resin member. In a gas turbine engine 10, Fig. 1, the compressor casing 12 is formed from two substantially semi-cylindrical sections 16, 17 of synthetic resin material. The sections 16, 17 are joined together by strips 22, 23 of synthetic resin material extending over substantially the whole length of the compressor casing and bonded to the sections and extending across gaps 20, 21. The compressor casing 12 is joined to a cylindrical portion 14 of an air inlet casing 11 and to a cylindrical portion 15 of a combustion equipment casing 13 by means of strips 32, 33 of synthetic resin material bonded to the casings and extending around the entire circumference of gaps 30, 31. The portions 14, 15 may be of synthetic resin material to facilitate the bonding. Wires 34, 35, Figs. 1 and 2, and wires 36, 37 are disposed within the gaps 30, 31. Wires 24 and 25 are disposed within the gaps 20, 21 respectively, and lie above the other wires where they cross them. To dismantle the compressor casing 12, wires 24, 25 are pulled to break the strips 22, 23 and then wires 34, 35, 36, 37 are pulled to break the strips 32, 33. The parts of the strips 22, 23, 32, 33 which remain bonded to the casings may be machined away to allow re-assembly of the casings with further strips. Specification 947,795 is referred to.
Patent GB-149271-A (GB)
Title: Improvements in and relating to fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1920-07-14
Abstract: 149,271. Dapron, J. M. July 15, 1919, [Convention date]. Fluid-pressure.-Valve mechanism for effecting an automatic application of vehicle brakes upon release of the controller handle is rendered in- . operative if an effective straight air applicaticn has been made. The automatic operation can be temporarily prevented by a pedal-actuated valve. The system comprises an emergency valve 1 of which the chamber 7 is connected to the automatic train-pipe 8, the chamber 10 to the main reservoir pipe 18 by the pipe 11 and a cavity 26 in the slide 12 which normally connects the brake cylinder 2 to the straight-air pipe 25 so that, upon the pipes 18, 25 being connected by the driver's valve, a straight air application of the brakes is effected. For venting the train-pipe 8 upon release of the controller handle 16, there is provided a relay valve 13 normally disconnecting the train-pipe passage 14 from an exhaust port 15 and subject on its under surface to the train-pipe pressure and on its upper surface normally to the main reservoir pressure by way of passage 21, pipe 19 past a double check valve 24, the pilot valve 17 and pipe 18. Fluid supplied to the pipe 25, when a straight air application of the brakes is made, flows to the side of the check valve 24 by the connexion 25', but the main reservoir pressure on the other side of the valve prevents movement thereof. If, however, the motorman removes his hand from the controller handle 16, the pilot valve 17 is raised and vents the pipe 19 to an exhaust port, whereupon the straight air pressure moves the valve 24 to the left to connect the upper chamber of the relay valve 13 to the straight air pipe 25. An automatic application of the brakes is thus prevented unless the pressure in the straight air pipe is insufficient to hold the valve 13 closed against the pressure in the trainpipe 8. To enable the motorman to release the controller handle without effecting an automatic application of the brakes even if a straight air application has not been made, a pedal-actuated valve 22 may be moved to cut off the communication between the pilot valve 17 and the relay valve 13.
Patent GB-126253-A (GB)
Title: Improvements relating to Switches for Electric Starting Motors.
Inventor: LUCAS HARRY
IPC: H02P1/02
Filed: 1918-12-19
Abstract: 126,253. Lucas, H., and Ireland, H. W. F. Dec. 19, 1918. Turning-gear. - A pair of switches are employed for controlling an electric starting-motor of the kind in which the axial movement of a toothed pinion on a screwed armature shaft into mesh with teeth on the engine fly-wheel is controlled by a solenoid, which may be in parallel or in series with the motor. The switches c, d control the current supply from the battery c to the motor b and the solenoid a respectively, and are each provided with a solenoid g, h, these solenoids being connected in a circuit controlled by a handactuated switch i. The solenoids may close the switches simultaneously or successively, and the switch c, on closing, engages a contact j and breaks the circuit of the solenoid h. The switch d is then opened by its spring, after an interval depending on the time-constant of the solenoid h and allowing time for the pinion-meshing operation.
Patent GB-298219-A (GB)
IPC: H01R13/02
Filed: 1928-07-23
Abstract: 298,219. Schnell, K. Oct. 6, 1927, [Convention date]. Two - part couplings.-A plug a and the corresponding socket d have contact-surfaces of spiral cross section so that one of the members may be turned to bring the surfaces into engagement, one member being mounted on an insulating support and the other attached to a flexible lead. The plug may have a fluted insulating handle. The socket may be externally screw-threaded and formed with a recess h so that it can be fixed by nuts and a key, or by insertion in a moulded plastic mass.
Patent GB-369123-A (GB)
Title: Improvements in anti-skid devices for motor vehicles
IPC: B60B39/00
Filed: 1931-07-27
Abstract: 369,123. Preventing slipping of wheels. HEROLD, O., Georgenthal, Post Untersachsenberg, and HARTL, A., Sachsenberg, both in Vogtland, Germany. July 27, 1931, No. 21377. [Class 108 (ii).] A device for preventing side-slip of a vehicle includes a frame a pivoted to the rear-axle and provided with outwardly directed toothed rollers h at its lower corners. The frame is brought into operative position against the action of a spring d by means of a cable f connected thereto and controlled by means of a ' foot lever situated near the driver's seat.