baber/WOPTO huggingface dataset:
Patent GB-660490-A (GB)
Title: Improvements in or relating to phase-shift circuits for grid-controlled gas discharge tubes
IPC: H03H7/20
Filed: 1949-05-20
Abstract: 660,490. Phase shifting. MULLARD RADIO VALVE CO., Ltd., and LUCAS, J. H. May 20, 1949,No. 13532/49. Class 38 (ii). A phase shifting circuit for the grid control of a pair of discharge tubes 13, 13<SP>1</SP> operating in phase opposition from a single-phase supply 3 has a transformer 1 having a single-phase primary winding 2, a first secondary winding 14 supplying phase-opposed voltages to the anodes of the discharge tubes, a second secondary winding 4 providing phase-opposed voltages and a pair of saturable reactors 7, 7<SP>1</SP> connected each in series with a resistor 8, 8<SP>1</SP> to form a closed four - element network having two opposite junctions connected across the second secondary winding 4 and the other two opposite junctions 9, 9<SP>1</SP> connected to supply grid potentials to the pair of discharge tubes, the pair of saturable reactors having direct current windings 10, 10<SP>1</SP> connected in series with each other across a variable direct current supply 11. The inductance 12 is provided to prevent an alternating potential from appearing across the direct current supply and, since the windings 10, 101 are so connected that the alternating potential in them largely cancels out, the inductance 12 may be smaller than is the normal practice. If the direct current supply has a very high internal impedance the inductance 12 may be omitted. The waveform of the voltages appearing at the grids of the discharge tubes exhibit very rapid changes, thus ensuring very precise control of these tubes. The arrangement may be used on a multi-phase supply if more than one pair of tubes are required.
Patent GB-869989-A (GB)
Title: An improved clip
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B2/24
Filed: 1958-04-29
Abstract: 869,989. Spring clips. F.T. PRODUCTS Ltd. April 22, 1959 [April 29, 1958], No. 13594/58. Class 44. A clip is formed from a single strip of metal sheared and bent so as to have a foot 10 of U-shape comprising a web 13 and two limbs 14, 15, a leg 11 directed away from the web of the foot in a direction opposite to the direction of the limbs and extending between the foot and a head 12, the head being of greater width, transversely of the strip, than the leg and bent to substantially V-shape so as to have one arm 20 of the V joined to the leg and one arm 21 of the V free, the finished clip being rendered resilient and rust-proof. The limb 15 is formed with two prongs 1'6, 17, directed towards the web and the arm 21 of the head has a cut-out portion 23 defining two jaws, the outer jaw being bowed to form a spring tongue 26. The clip is used for securing a mains dropping resistor to a metal flange, the head being inserted in a bore of the resistor and the foot engaging the flange. Two clips are used one at each end of the resistor.
Patent GB-915056-A (GB)
Title: Improvements in or relating to water heating installations
IPC: F22D1/12
Filed: 1959-04-21
Abstract: 915,056. Feedwater supply systems for steam boilers. HUET, A. April 21, 1959 [May 16, 1958], No. 13612/59. Class 123 (2). [Also in Group XL (a)] In a nuclear reactor steam raising plant, the steam raising tubing banks c, b are mounted within a duct a, through which flows the reactor coolant in the direction F. The economizer b is supplied by. the pump f with water from a condenser (not shown), which after leaving b flows through the evaporator C. Alternatively, water may pass directly to c through the tube j and by-pass l, thus by-passing the evaporator b. The valves g, m control the proportions flowing through b and c.
Patent GB-311328-A (GB)
Title: Improvements in or relating to centerless grinders
IPC: B24B5/24
Filed: 1929-05-02
Abstract: 311,328. Cincinnati Grinders, Inc., (Assignees of Booth, C.). May 9, 1028, [Convention date]. Centreless grinding; guides and rests. - A centreless grinder for tapered rollers consists of a bed 15 having adjustably mounted thereon a grinding-wheel 18, which is reciprocated axially during grinding, and a regulating-wheel 19. Supported on the bed below the wheels is a cam plate 27, reciprocated parallel to the wheel axes by a lever 29 oscillated by a cam groove 34 in a drum 35 on the shaft of the regulating-wheel. The cam plate has thereon three cams 37, 38, 39, the cams 37, 38 serving, through contact with rollers carried by vertical rods 47, 48, to raise and lower a work rest 50, which in its lowest position carries the work-pieces 69 into the grinding-throat, and in its highest position carries the work-pieces up to a discharging and feeding mechanism. This mechanism consists of a hopper 53 having passages 54, 55, 56 therein along which the work-pieces are fed to starwheels 58 carried by a shaft 57 rotated intermittently by ratchet-gearing 60, 61 actuated, through a member 63, by the cam 39. The arms 59 of the star-wheels discharge the workpieces from the recesses 68 in the work-rest into a shoot 65, and feed new, unground, pieces into the recesses ready for grinding when the rest is lowered; adjustable positioning screws 71 are provided in the rest to engage the ends of the work-pieces. The regulating-wheel is formed with tapered flanges 74, 75, 76, one to engage each work-piece, and the grinding-wheel is cylindrical.
Patent GB-552901-A (GB)
Title: Improvements in or relating to yarn twisting and winding apparatus
IPC: B65H59/38
Filed: 1941-10-24
Abstract: 552,901. Spinning and winding machines. RAMSEY, A. R. J. (U.S. Textile Machine Co.). Oct. 24, 1941, No. 13701. [Class 120 (ii)] In a machine in which yarn is delivered from a twisting spindle rotated at a constant speed and wound up on a roller rotated at constant yarnsurface speed, the yarn passes through a guide disposed substantially in alignment with the twisting spindle and the axial spacing of the guide from the spindle is automatically increased in predetermined and positive relation to the increase in diameter of the yarn mass on the take-up roller. As shown the yarn guide 12 is adjustably mounted on a lever 33 pivoted in and guided by the sides of a bracket 30 and carrying a pivoted cam lever 40 which engage 30 and carrying a pivoted cam.lever 40 which engages a projection 46 in the pivoted lever 18 carrying the roller R driven by the drum 22 and on which the yarn is wound. The lever 40 is adjustable by a set screw 45 and as the yarn builds up on the roller R the lever 18 moves away from the drum 22 against the action of a spring 20 and the projection 46 causes the guide 12 to move away from the spindle 10, thus controlling the yarn balloon and tension. In a modification the lever 40 is replaced by a cam block adjustable in the lever 33 ; the block may have a pair of differently shaped cam surfaces and may be reversed in the lever to give a different movement to the yarn guide.
Patent GB-1149717-A (GB)
Title: Improvements in or relating to packages of glasses
IPC: B65D75/66
Filed: 1967-03-23
Abstract: 1,149,717. Display box for glasses. VERRERIE CRISTALLERIE D'ARQUES J.G. DURAND & CIE. 23 March, 1967 [29 April, 1966; 20 Jan., 1967], No. 13731/67. Heading B8P. In a display box for glasses there are cut-out<SP>s</SP> in the side walls 2, 3 providing tabs 6, 7, 13, 15, which are foldable inwardly for interposition between the upper and lower parts of adjacent glasses. The tabs engaging the lower parts of the glasses may be shaped to conform to glasses, Figs. 4, 7 (not shown). In a further modification, Fig. 11, the tabs 40, 41 between the lower parts of each pair of adjacent glasses bear resiliently against each other. There may be rows of glasses side-by-side.
Patent GB-1132553-A (GB)
Title: Improved mixer tap
IPC: F16K31/60
Filed: 1967-03-23
Abstract: 1,132,553. Valves. R. CHAMPION. 23 March, 1967 [5 April, 1966], No. 13738/67. Heading F2V. A hot and cold water mixing tap includes, within its hollow body, a core 7 which is rotatable and divided into two communicating chambers by a partition with a seal. The lower part of the core is formed with an eccentric groove (Figs. 2 and 6, not shown), the position of which in relation to the two circumferentially spaced water inlets (Fig. 4, not shown), determining the temperature of the mixed water. The mixed water from the lower chamber flows into an outlet via the upper chamber, the rate of flow into which being determined by the position of a valve member 8 in relation to its seat 13. A control knob 1 when just rotated causes rotation of a nut 3 and hence axial movement of the valve member 8 so regulating the volume of flow. When first depressed and then rotated, the knob causes, by engagement of two clutch elements composed of, for example, toothed rings 5 and 10, the rotation of member 7 and hence temperature regulation of the water mixture.
Patent GB-212170-A (GB)
Title: Improvements in or relating to the covers of containers or boxes
IPC: B65D5/52
Filed: 1923-05-24
Abstract: 212,170. Mitchell, H. B., and Planters Products, Ltd., May 24, 1923. Lids; fittings, external. - The cover of a box is formed in two parts, one part or corner b being permanently secured to the box, the other part c being hinged about the part band forming the lid. The lid c may be held in an inclined position for display purposes against a stop e which is secured to the corner b.
Patent GB-169207-A (GB)
Title: Machine for cleaning, grinding and polishing pieces of furniture and similar wood-work
IPC: B24B27/00
Filed: 1920-05-20
Abstract: 169,207. Steingõsser, L. May 20, 1920. Flat extended surfaces, polishing. - A machine for cleaning, grinding and polishing furniture and other woodwork comprises a tool mounted at the lower end of a shaft h which h is driven, through a spring e wound in the direction of rotation, by an electric motor a mounted on rails 3 carried by a carriage, which runs on rails 6 secured to the ceiling. The motor shaft rotatably carries a cross-shaped member c, in the ends of which are pivoted levers k connected at their outer ends by links l to a cross-shaped member g, and at their inner ends by links i to the shaft h. The spring is connected by clips d, f to the motor shaft and the member g respectively, and by its pressure balances the weight of the parts. The links i pass through slots in the arms of the member g. The tool comprises a .casing q, carrying a felt pad t and secured 'by a bayonet-joint to screws z, which are mounted in a hollow member v and extend inwardly thereof into recesses in a hollow ball w secured to the shaft h; springs x are placed between the members v, q. The tool is moved over the work by handles c mounted on bearings m carried by the shaft h, and the handles carry vessels p containing cleaning, grinding, or polishing material, which flows through tubes y into the ball and through this to the tool. The ball has internal partitions z<1>, which cause a suction and draw the polishing material &c. through the tubes. In operation, the tool is pressed on the work by the handles o and is moved over the surface in a loop-shaped path. The downward movement draws the upper end of the shaft h from contact with the member g, and compresses the spring, which causes the motor quickly to follow the movements of the tool.
Patent GB-326088-A (GB)
Title: Improvements relating to apparatus for containing and delivering cigarettes and other articles
IPC: A24F15/04
Filed: 1929-05-07
Abstract: 326,088. Davenport, J., and Davenport, E. J. May 7, 1929. Contents, delivering.-A box for containing and delivering cigarettes comprises a storage chamber 1 having a sloping bottom 3 with its front edge separated from the front wall 4 of the box by a feed slot 15 which allows one article only to fall through at a time into a movable delivery device 7 mounted below the slot, the delivery device having a groove 8 which normally lies below the feed slot and projecting, agitating and positioning members 12, which, when the device 7 is moved to deliver an article, move through slots 17 in the bottom 3 and enter the chamber 1 so as to agitate the articles therein and move a number towards the feed slot into which the members 12 do not enter. As shown the delivery device 7 is in the form of a rotatable roller and the members 12 carry stops 14 which, by engaging the bottom 3, limit the angular movement of the roller and prevent the member 12 from entering the feed slot 15; the parts 12, 14 are formed on a bent plate 16 fixed to the periphery of the roller 7. The delivery device may be slidable.
Patent GB-1530183-A (GB)
Title: Signal level control circuits
IPC: H03G3/20
Filed: 1976-04-07
Abstract: 1530183 Analogue-to-digital conversion; window circuits WESTERN ELECTRIC CO Inc 7 April 1976 [21 April 1975] 14156/76 Headings H3H and H3T A variable gain amplifier 9 is digitally controlled to maintain its output signal within predetermined limits by a reversible counter 39 incremented or decremented according to the output of a window circuit 16 defining said limits and exhibiting hysteresis at both limits. As shown the counter is a 6 bit binary coded decimal counter and is preset to its mid-point count (i.e. 20) when a new signal is input and incremented or decremented to obtain balance. If the loop cannot balance, further counting is inhibited to prevent over- or under-flow of counter 39 and an "out-of-range" indication together with a + or - sign is given. The top 5 bits of the counter address a read only memory in decoder 43, the least significant bit going direct to display 44. The window circuit 16 comprises amplifiers 17, 18 connected to resistors 21, 22; 24, 25 respectively defining upper and lower limits, positive feedback 26, 27 providing the hysteresis. Details of a stage 10 of amplifier 9 and of logic 38, 42, 43, 46 are given, Fig. 3 (not shown).
Patent GB-453571-A (GB)
Title: Improvements in or relating to electrical impulse responsive devices
IPC: G08C19/22
Filed: 1936-05-19
Abstract: 453,571. Electric signalling systems. BRISTOL'S INSTRUMENT CO., Ltd., 144, Pomeroy Street, New Cross, London.-(Bristol Co. ; Waterbury, Connecticut, U.S.A.) May 19, 1936, No. 14195. [Class 40 (i)] In a telemetering system in which the reading is transmitted by the length of a make and a break, the receiver comprises a pair of epicyclic gear trains which are continuously driven, part of one train being held during the break period and part of the other during the make. As shown in Figs. 1-3, the gear trains 15 and 16 are driven continuously by motor 35 through gears 36, 33 and 25. When the line circuit is completed, relay 52 is energized to hold brake 27 against wheel 34 so that the bevel wheel 29 is fixed and shaft 31 is rotated. The shaft 31 is fixed to shaft 18 which carries arm 48 and if the circuit is closed for a sufficient length of time, arm 48 engages arm 57 which is attached to gear 55 so that the gear 59 is turned and carries the pointer 10 clockwise over the scale. When the impulse ceases, wheel 34 is released and shaft 18 is restored to normal by spring 46, the arm 57 and gear 55 being left in their operative position. The brake 27 now engages wheel 26 so that gear 21 is fixed and shafts 23 and 17 are turned. The contact arm 42 carried by 17 co-operates with arm 56 which turns gear 54 and controls the anticlockwise movement of arm 60. If the reading being transmitted remains constant the arms 42 and 48 move up to but do not rotate the arms 56 and 57 so that the pointer 60 remains stationary, but any alteration in the reading varies the lengths of the make-andbreak portions of the impulse and one or other of the arms 57, 56 is rotated to move the indicator pointer. A suitable transmitter is shown in Fig. 6. The pressure in a Bourdon spring turns cam 88. Cam 91 is driven at a constant speed by motor 97 and so long as the roller 93 or the vertically movable arm 83 is in contact with the cam 91 the line circuit remains complete. The cam 91 raises the arm 83 and then lowers it gradually. When the roller engages the cam 88 the line circuit is broken and remains open until the cam 91 has turned sufficiently to again lift the arm. Receivers having other forms of epicyclic gear trains are described in the Specification.
Patent GB-467765-A (GB)
Title: Improvements in motor-driven apparatus for the timed control of a cycle of operations
IPC: H01H43/10
Filed: 1936-05-19
Abstract: 467,765. Electrically - actuated valves. BRISTOL'S INSTRUMENT CO., Ltd. May 19, 1936, No. 14196. Convention date, May 31, 1935. [Class 135] [Also in Group XXXVII] A valve or switch 48 controlling a process is operated by a cam-follower 45 co-operating with a cam 11 which is driven, always in one direction by a reversible motor 21 through one of two trains of gearing, the particular train selected depending on the direction of rotation of the motor, and the gearing being such that one train gives a faster speed to the cam than the other. The motor drives a wheel 24 and this is connected to a wheel 14 fixed to the cam, through gearing 17, 15, and also through gearing 25, 26, 18, 16. Ratchet mechanisms 19, 20 connect wheels 17, 15 and 18, 16 together for one direction of rotation but allow them to slip for the other direction. The cam has a narrow portion 35, a broad portion 36, and an intermediate portion 37, the angular extent of the portion 36 being adjustable by a detachable and turnable sector 38, and in addition to operating the valve 48 it operates switches 46 47 controlling the motor. From the stationary position shown, closure of a switch 49 completes the circuit to the winding 22 of the motor 21 which then rotates in the direction of the arrows. The pawl 19 drives the wheel 15 and cam 11, while the pawl 20 driven counterclockwise slips over the ratchet wheel 16 which is driven clockwise from the wheel 14. The cam is thus driven fast and the cam-follower 45 moving on to the part 36 opens the valve 48, closes a retaining circuit 46 for the motor and operates the switch 47 into its other position in which the winding 23 of the motor is energized and the motor reverses. Pawl 20 now drives and pawl 19 slips with the result that the cam moves slowly till after a time determined by the length of the portion 36, the cam follower 45 drops on to the part 37, closing the valve 48, changing over the switch 47 but keeping the switch 46 closed. The motor reverses again to its original direction and the cam rotates rapidly till the camfollower 45 drops into the notch 35 and the switch 46 opens stopping the motor and bring- ing the parts to their original position ready for the next actuation of the switch 49. Instead of a ratchet-and-pawl, a clutch arrangement, Fig. 4, (not shown) may be used.
Patent GB-1058683-A (GB)
Title: Electrographitic brush
IPC: H01R39/20
Filed: 1964-04-07
Abstract: An electrographitic brush, for use in dynamo-electric machines, comprises a carbon-bonded body of electrically conductive graphitic ma-terial having from 0.5 to 10% by weight of pulverized glassy carbon (defined and described in the Specification) distributed through the body.  The glassy, i.e. vitreous, carbon may be made by carbonizing copolymers of furfural and phenolic resins.  The brush may be made from a batch comprising finely divided carbonaceous material, a carbonaceous temporary binder, and from 0.5 to 10% by weight, based on the batch, of glassy carbon.  The glassy carbon should be finely divided so that at least 50%, and preferably 100%, passes a 100-mesh (Tyler) screen, preferably at least 50% passing a 200-mesh screen.  The finely divided carbonaceous material may be coke, charcoal or graphite, but preferably is lamp black; mixtures of these materials may be used.  The binder may be coal tar and/or pitch.  The batch may also contain sulphur.  The brush may be impregnated by known processes with salts, with waxes or wax-like material, or with phenolic or other synthetic resin.
Patent GB-273463-A (GB)
Title: Improvements in rubber packing rings for stuffing boxes
IPC: F16J15/20
Filed: 1926-06-08
Abstract: 273,463. Spencer, Moulton, & Co., Ltd., G., and Hine, C. W. C. June 8, 1926. Pac7;ing, non-metallic.-In packing for vacuum brakes &c. of the type in which a flanged rubber sleeve 2 has a bead 3 bearing on the rod, the bead is pressed on to the rod by elastic means preferably comprising a constricting ring 1 of more elastic rubber. The ring 1 may be let into a recess in the sleeve, or may extend the full distance between the flanges. The ring may be united with the sleeve during manufacture.
Patent GB-654700-A (GB)
Title: Improvements in and relating to resistance welding apparatus
IPC: B23K11/30
Filed: 1948-05-28
Abstract: 654,700. Electric welding ; making electrodes. MALLORY METALLURGICAL PRODUCTS, Ltd. May 28, 1948, No. 14476. Convention date, June 3, 1947. [Classes 83 (ii) and 83(iv)] A spot-welding electrode comprises a body portion 20 with coolant hole terminating in a rounded end 24. Uniformly spaced longitudinal flutes 26 converge towards the centre of the bottom in a streamlined manner to increase the best exchange between the coolant and the electrode. A depression 28 may be provided at the bottom of the coolant recess. The electrode body 20 terminates in a tapered end fitting a holder 23 with coolant tube 41 located by the splines. Coolant is supplied through a nipple 38 and exhausted from a nipple 39. Specification 591,201, is referred to.
Patent GB-129507-A (GB)
Title: Improved Display Board for Letters, Telegrams and the like.
Inventor: ALLDRITT EDMOND ALBERT
IPC: G09F7/00
Filed: 1918-09-06
Abstract: 129,507. Alldritt, E. A. Sept. 6, 1918. Racks.-A display-board for letters, telegrams, &c. comprises a frame 1 having transparentlycovered spaces 3 at each side for advertisements and a part 4 cross-covered with tapes 10 for securing the letters &c. The advertisements are inserted through the sides of the frame, the openings being covered by panels 19, which have an engaging-pin 20 at the top and a ball lock 21 a.t the bottom, detachment being effected by forcing a rod through holes 23. The advertisements are on cards which slide in grooves formed on shelves 12 separating the spaces 3, and windows are also inserted in these grooves. The part 4 is enclosed by a door 5 provided with a ball fastening 8 and with a lock and key 7. A number or calendar to indicate the date of the month is placed in a space 11 at the top of the board.
Patent GB-514784-A (GB)
Title: Improvements in ambulances
IPC: A61G3/00
Filed: 1938-05-16
Abstract: 514,784. Ambulance vehicles. LOMAS, Ltd., H., and LOMAS, A. May 16, 1938, No. 14501. [Class 108 (i)] A stretcher-carrier or platform A for an ambulance vehicle is hinged at its ends to a supporting frame B carrying a fixed seat b<5>, the hinges being movable on the frame, e.g., by being mounted on slides b' engaging guide rails b thereon, thus enabling the platform, on which a stretcher C is fixed, to be moved towards the forward part of the supporting frame before it is swung about its hinges B' from its horizontal position to a vertical or substantially vertical position in which it forms the back of the seat. The platform is held in the horizontal position by pins a' thereon engaging apertures b<4> on the frame B and is provided with angles a<1> forming guides for the stretcher runners c and with straps &c. to retain the stretcher and bedding therefor in position. The frame may constitute' a locker having a door b<3>
Patent GB-132325-A (GB)
Title: Improvements in or relating to Agricultural Implements for Making Drills for Sowing Seeds.
Inventor: HAMILTON-ADAMS THOMAS
IPC: A01C5/06
Filed: 1918-09-06
Abstract: 132,325. Adams, T. Hamilton-, Sept. 6, 1918. Seed - distributors. - The seed drill for an agricultural implement for sowing seeds operating in turf or other pasture land is cut by two dished cutting- disks C, C<1> operating in succession, the lower edge of each disk lying approximately on the centre line of the channel, and the upper edges of the disks lying away from each other on opposite sides of the centre line. The disks are slightly turned about vertical axes so that the front edge of each disk lies across the centre line of the drill. A seed tube D and a ' moulding-iron E are arranged behind the second disk. The iron E may be omitted or replaced by a follower adapted to throw the loose earth out of the drill. Specification 122,444 is referred to.