baber/WOPTO huggingface dataset:
Patent GB-1477067-A (GB)
Title: Scan conversion apparatus
IPC: G01S7/62
Filed: 1975-05-19
Abstract: 1477067 Sonar scan conversion WESTINGHOUSE ELECTRIC CORP 19 May 1975 [10 June 1974] 21151/75 Heading G1G [Also in Division H4] Video information, received at a slow rate, is used to update a store which is continuously read, nondestructively, at a fast rate, for display on an interlaced raster scanned CRT. In a side scan sonar application, Fig. 1, the return signals are sampled, A-D converted and stored in shift registers 15 at the slow rate. Each so stored signal is subsequently D-A converted for storage on a magnetic disc 16 to constitute one line of a video signal to be displayed on a monitor, 14. Succesive signals are recorded alternately on a pair of tracks TK1, TK2 so that each track contains exactly one field of the interlaced display. The apparatus is controlled by a timing circuit described with reference to Fig. 4 (not shown), under the influence of clockpulses read from a clock track CT permanently recorded on the disc. In operation sonar transmissions occur at a frequency of 3 Hz the return signals occupy the intervening intervals. Each return signal is sampled 1000 times. The disc rotates at 3600 r.p.m., providing 60 fields/sec output. During each rotation, a segment of the signal is sampled 50 times. The sample instants are uniformly distributed over the period of the disc rotation. During, the subsequent rotation the samples are read at the fast rate from the shift register store 15 where they were loaded upon sampling. The segment of signal is then loaded into a respective one of 20 "slot segments" SS1 to SS20, Fig. 5, of the respective "slot" of track being used to store that return signal. The "slots" pass beneath read heads at the standard television line frequency. The build-up of the recorded return signal on the disc over a period of 20 rotations thereof is shown in Fig. 3. Each horizontal interval TK1 representing a rotation, and each vertical interval, SS1 to SS20, representing the "slot segments" containing the sampled signal segments. Successive return signals S1 to S9, Fig. 6 loaded on tracks TK1 TK2 in staggered fashion with ¢ a television line period displacement therebetween to provide the interlacing and in a manner enabling a "travelling window" display effect by entering new data into the "slot" representing the top line of the picture, the oldest information leaving the bottom of the picture by virtue of being overwritten. The effect is produced by shifting the vertical synchronized pulse back one line on every disc rotation. Versions of the shift register store are described with reference to Figs. 7 to 9 (not shown) and a feedback servo-control system for maintaining the drive speed constant, with reference to Fig. 10 (not shown). The device may be applied to slow scan television systems for transmission over phone lines.
Patent GB-973622-A (GB)
Title: Flow-control valve
IPC: A61M39/28
Filed: 1963-05-28
Abstract: 973,622. Valves. BAXTER LABORATORIES Inc. May 28, 1963 [Oct. 15, 1962], No. 21206/63. Heading F2V. [Also in Division A5] A valve controlling the flow through resilient tube 12 comprises an encircling member 15 having a tapered wall 16 and a ball or roller 17 between the wall and tube whereby movement of the member relatively to the tube causes the ball 17 to compress or release the tube. The wall 16 may be provided with serrations.
Patent GB-382316-A (GB)
Title: Improvements in thermionic generators
IPC: H03B5/34
Filed: 1931-07-24
Abstract: 382,316. Valve generating circuits. WIRED RADIO, Inc., 60, Broadway, New York, U.S.A.-(Assignees of Dow, J. B.; 37, Oakbridge Boulevard, Oakcrest, Alexandria, Virginia, U.S.A.) July 24, 1931, No. 21241. Convention date, Feb. 11. [Class 40 (v).] An output electrode 1e is shielded from electrodes 1a, 1b, 1c, which generate the oscillations. The frequency generated is controlled by a piezo-crystal 10 between the grid 1b and the central electrode 1c, which is connected through an inductance 18 to a high-tension battery 6. The grid 1b is biased from a battery 19 through an impedance 3. The shielding-grid 1d is given a positive potential by a tapping 12a, and high frequencies are byepassed by a condenser 9. The oscillating valve is coupled to a power amplifier 22 by an inductance 21 and a condenser 25. The inductance may be replaced by a tuned circuit, Fig. 4 (not shown). The crystal may be replaced by a tuned circuit, Fig. 2 (not shown), and the impedance 18 omitted, the central electrode 1c being connected to high tension through a tapping on the inductance of the tuned circuit, Fig. 3 (not shown).
Patent GB-136645-A (GB)
Title: Improvements relating to Trunks, Travelling Cases and the like.
Inventor: FORBES ALEXANDER
IPC: A45C13/36
Filed: 1918-12-19
Abstract: 136,645. Forbes, A. Dec. 19, 1918. Strengthening by corrugating and embossing; bands, strengthening.-A trunk, travelling case, &c. made of vulcanized fibre &c. is moulded or embossed to form strengthening and protecting protuberances 1, Fig. 6, which have a backing or lining 8 and are filled with cork, felt, or other resilient material. After being shaped, the material is dried by hot air or otherwise hardened. The edges of the parts forming the receptacle may be turned up to form flanges 9. The protuberances 1 may be formed in separate pieces of material, which are subsequently secured to the receptacle, as shown in Fig. 4, the edges 4 of the material being folded inwards if desired; in this arrangement, the cork or other filling may be omitted.
Patent GB-1537044-A (GB)
Title: Rail wheel grippers
IPC: B61K7/08
Filed: 1975-05-19
Abstract: 1537044 Railway brakes; linkwork DRG (UK) Ltd 2 Jan 1976 [19 May 1975] 21259/75 Headings F2E and F2K A rail wheel gripper mounted on a track comprises gripper bars 2 displaceable towards each other from an inoperative position (lefthand side of Fig. 1) to an operative position (righthand side of Fig. 1) to grip a wheel W therebetween to retard or to hold stationary the rail vehicle; at least one of the gripper bars 2 is mounted on a carrier arm 6 which itself is pivotally mounted on upper and lower pivot arms 12, 14 pivotally mounted on a frame 4; an hydraulic cam 20 is provided, retraction of which operates a crank arm 28 to thereby cause movement of the gripper bar 2 upwardly and inwardly towards its operative position engaging wheel W. As illustrated in Fig. 1, each gripper bar 2 is secured at its ends to a respective pair of said carrier arms 6. The pivot arms 12, 14 are fixed to rotate with their pivot shafts 8, 10 but have freely rotatable pivot connections 16, 18 with their carrier arms 6, the body of the hydraulic ram 20 is pivoted at 22 to the frame 4 and the piston rod 24 of ram 20 is connected by a pivot pin 26 to the crank arm 28 which is fixed to the shaft 10. A common control is provided for the rams to move in synchronism. Retraction of each ram 20 causes rotation of shaft 10 and with it pivot arm 14 to give upward movement of the carrier arm 6, which swings about pivot connection 16 to give the inward movement. In the latter stage of operation there is a considerable mechanical advantage. In the embodiment of Figs. 2-6 the frame 4 comprises end plates 32 connected by a base plate 34 and three tubular ties 36. The upper and lower pivot shafts 8, 10 extend between the end plates 32 the upper pivot shafts 8 beingmounted on the end plates through eccentrics (40). At the central region of shafts 10 a pair of mounting plates are supported on and extend between the shafts, the plates carrying the respective rams 20. The piston rod 24 of each ram 29 is connected by its pivot pin 26 to a pair of crank arms 28 keyed to shaft 10. To provide a remote indication of engagement an hydraulic pressure switch is provided in the line to the rams, while to indicate retraction electrical limit switches (46) are provided to be actuated by respective strikers 48 on lower shafts 10.
Patent GB-171440-A (GB)
Title: Improvements in railway and like route lever panels
IPC: B61L19/02
Filed: 1920-07-14
Abstract: 171,440. Ducousso, T. July 14, 1920. Addition to 148,396. Hand levers and hand gearing; interlocking hand levers.-Combiner mechanism as claimed in the parent Specification is modified so that the the rollers 6, 7, 8, are operated by hand and serve to move by suitable tappets 15, 16 the parallel reversely-sliding bars which are connected by a link 3 or other means which moves the points-controllingdevices.
Patent GB-441851-A (GB)
Title: Improvements in or relating to wireless receiving or transmission apparatus
IPC: H03J1/22
Filed: 1934-07-20
Abstract: 441,851. Distant - control systems. COHN, E., 111, Prince's Park Avenue, Golders Green, London. July 20, 1934, No. 21306. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 19, 1935.] [Class 40 (i)] The tuning member of a wireless receiver or transmitter is controlled, in response to impulses from a dial or other impulse transmitter, by mechanism which imparts movement to the member through the medium, inter alia, of a rectilinear movement imparted to or derived from a cam. In the arrangements shown diagrammatically in Figs. 2 and 3, a cylinder 15 on a spindle connected to the spindle of a tuning condenser, has inclined or helical teeth 19 which form a ratchet wheel rotated by pawl 20 of magnet 13 to give a coarse adjustment of the spindle. One tooth acts as a cam to a member 22 carried by a rack 21 stepped by a pawl 21a of another magnet to effect a fine adjustment of the spindle, while a further member 25 engaging rack 21 is moved, to obtain a finer adjustment, by a cam 23 moved step-by-step by a further magnet. Final adjustment may be made by manually operated slow-motion mechanism. Distributing mechanism controlled by a dialling relay is provided to direct the impulse trains to the proper magnets, or a single magnet may be provided, the distributer acting through suitable levers and links to operate the requisite pawls. A wave change switch may also be controlled by an impulse train. The distributer shown in Figs. 6 and 7 comprises a ratchet wheel 28 stepped by a relay operated each time the dial is moved off normal so that one of the arms of a member 35 is moved successively over a series of tappets 31 mounted on a fixed member 30 and controlling levers 32 (as shown), for operating the various stepping pawls in turn or making circuits for the various magnets. As shown, all impulse trains operate magnet 13 which reciprocates the spindle 29 of member 35 so that the tappets are reciprocated in turn to operate the pawls. The first tappet may operate a wave change switch and the last tappet controls release whereby the mechanism is permitted to return to normal under spring control. The condenser spindle may be spring driven from the cylinder 15 and may have a hydraulic or governor - controlled brake. A modified distributer comprises a cam member carried by ratchet 28 and completing the circuits of separate stepping magnets in succession.
Patent GB-238910-A (GB)
Title: Improvements in operating sliders for interlocking fasteners
IPC: A44B19/26
Filed: 1925-03-10
Abstract: 238,910. Prentice, G. E. April 28, 1924, [Convention date]. Sliding-clasp fastenings for garments, shoes. &c. of the type in which a series of interlocking members along the opposed edges of an opening are drawn together by a slider as described in Specification 232,927. The slider is bent up from sheet metal to forms wings 22, 23 connected by a narrow neck 21, with flanges 28, 29 forming side channels. The wings are held together by a rivet 30 to which a pull device 32 is pivoted. In a modification, a narrow extension 44, Fig. 4, of one wing 38 is bent back to form an attaching loop for a pull device 46, and its end is passed through holes in the wings and bent over to retain the wings in position.
Patent GB-816463-A (GB)
Title: Improvements in or relating to electric wave filters
Inventor: WALL PETER KENNETH
IPC: H03H7/01
Filed: 1957-07-05
Abstract: 816,463. Band-stop filters. STANDARD TELEPHONES & CABLES Ltd. July 5,1957, No. 21376/57. Class 40 (8). A bandstop filter comprises a network of reactive elements selected and arranged to form an all-pass constant-resistance delay equalizer, having a parallel-resonant circuit or circuits in one or more arms, and further comprises a series-resonant device connected to shunt each of these arms. Figs. 1 and 2 show respectively the lattice and bridged-T forms of the network, the relative values of the elements being indicated. The additional series-resonant circuit comprises elements L 2 , C 2  in Fig. 1 and 2L 2 , <SP>1</SP>/ 2 C 2  in Fig. 2. In order to obtain more convenient values, part of <SP>1</SP>/ 2  C 4  (Fig. 2) may be associated with the series-resonant circuit which then takes the form of a parallel-resonant circuit in series with a capacitor (Fig. 3). A crystal may be used to replace the LC seriesresonant network and may be coupled to the parallel-resonant arm by means of a transformer which provides the inductance 2L 1 . The impedances of 2L 2  and <SP>1</SP>/ 2 C 2  may be transformed in a similar manner. In one form, one of the cut-off frequencies of the filter is chosen to be tne lower of the two frequencies of infinite reactance of Z 1  (the reactance of arm 1-3 or 2-4, Fig. 1) and the upper cut-off is at the frequency of zero reactance. In another form the lower cut-off is chosen to occur at the frequency of zero-reactance of Z 1  and the upper cut-off at the upper frequency of infinite reactance. In both these cases an attenuation pole occurs between the cut-offs where Z 1  is equal to Z 2  (the reactance of arm 1-4: or 2-3, Fig. 1). In a further case, the cut-offs occur at the upper and lower infinite reactance frequencies of Z 1  and the pole at an intermediate frequency chosen such that Z 1 =Z 2 =O. The Specification discusses the image-impedances of these filters and gives numerical examples. The circuits may be used to provide delay equalization and bandstop operation simultaneously.
Patent GB-463377-A (GB)
Title: Improvements in and relating to ships' sterns
IPC: B63B1/08
Filed: 1936-08-04
Abstract: 463,377. Ships' sterns. YOURKEVITCH, V. Aug. 4, 1936, No. 21458. Convention date, Aug. 2, 1935. [Class 113 (ii)] A ship's hull with an overhanging or cruiser stern is framed in the neighbourhood of the stern to provide a bulbous keel section, as shown by the lines 1 ... 5, this keel portion being substantially torpedo shape 22 in the fore and aft direction. The propellers 17 are located at the narrowest part of the groovelike channels 24 located above the bulbous keel. The propeller struts being anchored to the bulbous keel and to the main portion of the hull above the groove-like channels. The stern post 25 is swept down from the stern to the aft end of the bulbous keel, and embraces the rudder 26. The construction is intended to diminish vibration in high speed ships and to provide improved propeller flow.
Patent GB-185096-A (GB)
Title: Improvements in starting devices for internal combustion engines
IPC: F02N7/02
Filed: 1922-08-08
Abstract: 185,096. Soc. de MÚcanique Nouvelle, (Assignees of CorniÞre, P.). Aug. 26, 1921, [Convention date]. Valve-gear.-In a small internal-combustion engine serving as an engine starter and having a piston b returned by a spring b<4> after making its stroke, an exhaust valve b<3> in the piston is opened and closed at the ends of the stroke by a finger g on the cylinder acting upon strikers f, f<1> on the valve stem.
Patent GB-1433925-A (GB)
Title: Air distributing apparatus for air-conditioning or ventilating  installations
IPC: F24F11/76
Filed: 1973-05-07
Abstract: 1433925 Ventilators DANFOSS A/S 7 May 1973 [5 May 1972] 21583/73 Heading F4V An air supply and distributing device for maintaining a constant temperature and air flow pattern in the lining space of a room comprises a horizontal supply duct 2 having an outlet opening 8 in a wall of the room, means for supplying air to opening 8 at a variable temperature or volume flow rate, a baffle 10 adjustable by a device 11 to vary the effective flow area of the opening 8, the air supply means and the device 11 being simultaneously operable in response to a temperature responsive device 4 in the room, and the arrangement being such that the effective flow area is reduced, in use, in dependence upon reduction of the temperature or volume flow rate of the air supplied to opening 8. In the form shown, the device 4 is a pneumatic thermostat controlling both an air mixing unit supplied with relatively hot and cold air and a piston and cylinder 12, 15 which actuate the device 11 against the bias of a spring 13, which may be of a type having a non-linear characteristic curve. The opening 8 and baffle 10 may be rectangular, as shown, or the opening may be circular in which case the radius thereof is adjustable to alter the effective flow area. The devices 4 and 12, 13 may be replaced by a thermostat having an electrical output and an electrically or magnetically driven actuator. In another embodiment (Fig. 3, not shown), a throttle element (16) in the duct 2 is controlled through a capillary tube (17) by a temperature sensor (18) in the room and having a liquidvapour filling. The capillary tube (17) has a branch (19) which communicates with a cylinder space (20) above the piston 12 of device 11. A spring (21) biases the device 11 upwardly.
Patent GB-950337-A (GB)
Title: Improvements in or relating to switching apparatus for inductive circuits
Inventor: HESKETH TRUMAN HILTON
IPC: H01H47/04
Filed: 1961-06-15
Abstract: 950,337. Switching systems for inductive loads. INTERNATIONAL COMPUTERS & TABULATORS Ltd. May 21, 1962 [June 15, 1961], No. 21627/61. Heading H2H. In a switching circuit having at least two inductive loads, such as clutches or relays, energized sequentially, the energy stored in an energized load L1 is transferred on de-energization to the next energized load L2 through a capacitor C which is charged through a diode D3 when the circuit to L1 is broken and reverse biases another diode D2. The voltage across C is added to the supply voltage to give rapid energization of the load L2, which may be a dummy. When C has discharged, the diode D2 is unblocked and passes a normal holding current to L2.
Patent GB-276979-A (GB)
Title: Improvements in or relating to the prevention of burning of the fuel in the fuel containers of furnaces
IPC: F23H11/00
Filed: 1927-08-17
Abstract: 276,979. Roucka, E. Sept. 2, 1926, Convention date]. Fuel, feeding.- In furnaces provided withmechanical grates supplied with fuel from a hopper mounted or. the furnace, combustion of the fuel in the lower part of the hopper is prevented by spraying water into the lower part thereof. As shown in Fig. 1, the hopper 2 is provided with a perforated water sup ply pipe 10 shielded by a plate 12. Water passing through the grate 4 is caught by a trough 14 having an outlet pipe at one end and mounted in such a manner that it may be tilted to discharge any accumulated ashes. A modified form of trough is shown in Fig. 3 having a water channel 26 to which entrance of ash is prevented by a shield 28.
Patent GB-441558-A (GB)
Title: Improvements connected with television and sound reproduction and apparatus for use therewith
IPC: H04N5/84
Filed: 1934-07-25
Abstract: 441,558. Television. HALL, C. P., 64, Palmers Avenue, North Cheam, Surrey, and FLYNN, H., 56, Balcombe Street, Dorset Square, London. July 25, 1934, No. 21794. [Class 40 (iii)] Complementary vision and sound signals are recorded by two correspondingly modulated beams of light directed simultaneously on a moving light-sensitive film 12. The object 1 is scanned by a mirror drum 5 or an apertured disc, Fig. 2 (not shown). The object may be a kinema film, Figs. 3 and 5 (not shown), scanned by a cathode-ray tube, Fig. 4 (not shown). The recording-film is run first in a forward direction, shifted laterally, and run in the reverse direction to provide four recorded tracks, Fig. 6 (not shown). For reproduction, two light beams pass through the vision and sound records respectively and are incident on light-sensitive cells connected to a television receiver and a reproducer of sound, Fig. 7 (not shown).
Patent GB-1043094-A (GB)
Title: Improvements in or relating to methods of finishing aluminium
IPC: C25D11/24
Filed: 1964-05-26
Abstract: A method of finishing an aluminium surface which has had a porous oxide layer formed and sealed, characterized by the step of corroding said sealed oxide layer to produce a finish having a non-metallic appearance.  The corrosion may be effected by strong or weak acids or alkalis. The sealing may be effected by an alkali silicate; an acetate; sodium molybdate, nitrate or dichromate or ferric ammonium oxolate.  The corroding step may be followed by a further sealing step. The method may also include preliminary etching or polishing steps, a dyeing step, and a smut removing step.  The finished surface has a non-metallic appearance.
Patent GB-757269-A (GB)
Title: Method and apparatus for cutting a block of cheese
Inventor: KRAFT GEORGE HOWARD
IPC: B26D3/18
Filed: 1954-07-27
Abstract: 757,269. Cheese cutters. KRAFT FOODS CO. July 27, 1954, No. 21872/54. Class 87(2) To prevent the bowing of wire cutters when cutting a block of cheese, the pressure is applied to the block, in a plane perpendicular to the relative movement of the block and cutters, during the cutting operation. As shown, wire cutters 35 are mounted on a frame 55, which is removably locked by clamping means 65 to a fixed frame 33. The cutters are tensioned by springs 81 between anchors 80 and frame 55, the tension being adjustable by nuts 83, 85. The cheese block is pushed upwardly through the wires on a pneumatically-operated platform 23, the movements of' which are controlled by an electric system (Fig. 15 not shown). The platform 23 has upstanding fixed sides 25 and hinged sides 26, defining a box 27, which may be opened to admit the cheese. The box is of smaller dimensions than the cheese to be cut so that lateral pressure is exterted on it when the sides 26 are locked by a catch in theclosed position shown. In operation the cheese block is slid on a pallet along a fixed table 17 on to the platform 23 and the box 27 locked around it. Air is then admitted to cylinder 141, raising platform 23 via connecting rod 143 and forcing the cheese through the wires 35 which pass through serrations 37 in the walls 25, 26 of the box 27. The cheese and box are then lowered. To prevent the drag of the wires 35 lifting the cheese when the block is lowered, a cover plate 99 having serrations 103 on its lower side corresponding to the wires 35 is secured to box 27.
Patent GB-243476-A (GB)
Title: Improvements in and relating to loom shuttle pegs
IPC: D03J5/08
Filed: 1924-09-16
Abstract: 243,476. Shreiber, N. N., and Riches, F. W. Sept. 16, 1924. Shuttles. - A two part shuttle peg b<1>, b<2>, shown in plan in Fig. 2, is expanded and contracted by means of a member e, which is caused to slide on raising or lowering the peg by means of a pin h on a link i pivoted at j to the shuttle. Projections f on the member are thereby caused to engage recesses &c. g in one or both legs b<1>, b<2> when the peg is raised, so as to allow this to collapse, whilst they expand the peg when this is lowered. The peg members b<1>, b<2> may be joined at their outer ends by welding or by a sleeve or ferrule. One of the peg members may be free at its inner end, its movement away from the other member being limited by a stop. The various parts may be made of prised or stamped metal. According to the Provisional Specification, the sliding member may be a wedge.