baber/WOPTO huggingface dataset:
Patent GB-1417871-A (GB)
Title: Liquid crystal display arrangements
IPC: G09G3/36
Filed: 1972-07-01
Abstract: 1417871 Matrix displays MARCONI CO Ltd 14 June 1973 [1 July 1972 21 Sept 1972] 30912/72 and 43675/72 Heading G5C Display apparatus comprises a liquid crystal panel with crossed conductor arrays la, 1b, lc, 2a, 2b, 2c means for applying between the arrays a first potential V 0 /3 which changes the optical state of the liquid crystal material and means for applying to selected conductors a second potential V 0  which returns the liquid crystal to its normal state. The shorter the application time and the faster the rise time of a pulse V 0 , the lower the amplitude of V 0  needs to be. A constant potential ŒV 0 /6 is applied to all conductors, then lines la, 1b, 1c are scanned with a pulse -V 0 /2 and selected columns 2a, 2b, 2c energized with a pulse +V 0 /2. Optionally, after a scanning cycle, pulses V 0 /2 may be applied to non-selected columns so that each column receives the same number of V 0 /2 pulses during a full cycle. The conductors 1 are at potential V 0 /6 and no visible effect is produced. This second scan may be interlaced with the first. Alternatively there may be a time interval lag with respect to the pulse duration, between scanning cycles. These methods allow greater conductor arrays to be used.
Patent GB-653228-A (GB)
Title: Improved means for the suspension of bobbins in the creels of textile spinning and analogous machines
IPC: D01H1/18
Filed: 1948-11-29
Abstract: 653,228. Bobbin supporting means for creels &c. HOWARD & BULLOUGH, Ltd., and HAYTHORNTHWAITE, J. J. Nov. 29, 1948, No. 30914. [Class 120(ii)] A bobbin supporting device comprises a telescopic ferrule including two relatively slidable tubular members 12 and 13, one such member 12 having means for its rotatable and universally oscillatable attachment to a creel and the other member 13 housing a catch plate 15 mounted on the first member, said catch being capable of rotation through a small arc between a position in which it is entirely shrouded by member 13 and a position in which parts 155 and 156 of the catch project beyond said member to constitute detents for engaging a bobbin 20 passed over the same, and catch being operable to select its position by the action of telescoping the ferrule, springs being provided respectively for urging the telescopic members apart and for retaining the catch in either of its positions. As shown the catch is rotatable by a resilient finger 21 which' engages notch 157 or 158 when the member is telescoped over member 12; and the means for attaching the support to the creel comprises a bolt 10 bearing a spherical member 11 from which the member 12 is suspended by a cup 14. Specification 456,425 is referred to.
Patent GB-175011-A (GB)
Title: Improvements in or relating to supporting brackets suitable for supporting a mirror upon a motor vehicle wind screen, or the frame thereof
IPC: B60R1/02
Filed: 1920-11-02
Abstract: 175,011. Oldfield, Ltd., J. & R., and Oldfield, R. A. Nov. 2, 1920. Brackets, adjusting and securing.-A bracket for supporting a mirror &c. is clamped on a motor-vehicle wind-screen &c. bv two pivoted jaws a pressed apart by a spring k and closed by the action of a ring h on conical shoulders on the pivoted jaws. The ring h is operated and clamped by nuts g, j.
Patent GB-433285-A (GB)
Title: Sound control method and means for practising same
IPC: G03B31/00
Filed: 1933-11-07
Abstract: 433,285. Gramophone recording and reproducing circuits. JENKINS, J. E., and ADAIR, S. E., Chicago, U.S.A. Nov. 7, 1933, No. 30982. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 10, 1934]. [Class 40 (iv)] [See also Group XXXVIII] Apparatus is controlled by means of an alternating - current signal received from the same transmission circuit (wireless receiver or line circuit) or sound record as speech or music. The invention may be applied to the control of a colour organ, to the changing of magic lantern &c. pictures, the illumination of pictures in an art gallery or the condition of mechanism being demonstrated at appropriate points in recorded lectures and to the control of the lights or the loud-speaker volume in a talking-picture theatre. In the last mentioned application the volume is preferably increased and reduced in steps under control of impulses of two frequencies. The invention may also be used for signalling to a cinematograph operator that the end of a reel is approaching or for starting up auxiliary projectors. The record may be photographic, mechanical or magnetic and the auxiliary signals may be recorded simultaneously with the main record by connecting a source of signal currents (e.g. a phonographic pick up), to the main recording circuits by a key or by directing sounds corresponding to the signal towards the recording circuit microphone. Alternatively, the control record may be applied to the sound record after the latter has been completed or separate negatives may be used to make a composite positive. The signal currents may be above or below the range to be reproduced. Where they are within that range the arrival of a signal may cause the loud-speaker 19, Fig. 4, to be effectively short-circuited at the signal frequency. Alternatively, a filter may be permanently connected in the path 89 to the loud-speaker for cutting out the signal frequency or frequencies. The signals may selectively actuate tuned relays directly as shown in Fig. 6 or may be rectified and control D.C. relays. Filter circuits 91, 93 are provided in the signal channels. The relay responsive to the control current may repeat impulses to a more sluggish relay which repeats them to a step-by-step switch so that momentary impulses of control frequency are ineffective.
Patent GB-288355-A (GB)
Title: Improved press for shaping covers of teapots and the like
IPC: B28B7/20
Filed: 1926-12-08
Abstract: 288,355. Handley, A. Dec. 8, 1926. Moulding hollow-ware; pressing dies; moulds. -Apparatus for moulding teapot lids &c. comprises a one-piece female die adapted to form the major portion of the cover and a pair of split dies adapted to form the neck and locating- flange. As shown, the female die f is supported upon a block e on which are slidably mounted a pair of carriers e<1> carrying upper and lower dies g, h. The carriers e<1> are forced together by cams d mounted upon the press columns a<1> and interconnected through levers d<1> and an adjustable link d<2>. Springs e<2> force the carriers apart upon release of the cams. A central die i forms the knob and is operable by treadle gear i<2> to eject the moulded lid. The die i slides upon a stationary perforating-rod adapted to enter an aperture in the pressing-die c. In operation the cams d are operated by a handle d<4> to close the mould, after which a charge of material is introduced and the die c lowered by a screw to press the material; the die c is then withdrawn and the mould opened, after which the lid is ejected by the die i. According to the Provisional Specification the split dies are operated by eccentrics and the pressing-die is fitted with a spring air valve.
Patent GB-1261145-A (GB)
Title: Improvements in or relating to gramophone record manufacture
IPC: B29C43/02
Filed: 1970-06-26
Abstract: 1,261,145. Trimming moulded gramophone records. DEUTSCHE GRAMMOPHON G.m.b.H. 26 June, 1970 [19 Sept., 1969], No. 31106/70. Heading B5A. Moulding flash 18 is removed from a gramophone record held by a suction plate 16, by a cutting stylus 10 rotated concentrically around the record on an arm 11. The arm is secured to a spindle 12 in a housing and the spindle is attached to a gear-wheel 14 engaging a toothed rack 17, so that when the housing is moved rectilinearly relative to the rack the arm is rotated and the removed flash falls into a container 19. In a modification the housing is stationary and the stylus arm is attached to the armature shaft of an electric motor in the housing.
Patent GB-361532-A (GB)
Title: Brake
IPC: B60T11/32
Filed: 1930-10-17
Abstract: 361,532. Fluid-pressure brakes. ACME BRAKE CORPORATION, 12801, Jefferson Avenue, East, Detroit, Michigan, U.S.A. Oct. 17, 1930, No. 31164. Convention date, Oct. 28, 1929. [Class 103 (i).] To prevent failure of a hydraulic brake system in the event of breakage of a pipe in the system, two pipes are provided and are separated by a diaphragm valve which automatically cuts off a broken pipe from the pressure supply. Pipes 23, 24 leading respectively to, for example, the front and rear brakes of a vehicle are connected to chambers 25, 26 in a casing D, separated by a rubber &c. diaphragm 37 formed with valve members 38. The chambers 25, 26 are connected by passages 27, 28 to the cylinder C in which is a pedal-operated piston adapted to force liquid through the pipes 23, 24 to apply the brakes. Thus if one of the pipes should break the pressure difference set up on the two sides of the diaphragm causes one or other of the valve members 38 to seat and cut off the defective pipe. The diaphragm 37 is disposed in an annular channel member 34 secured in the casing by the screwed plug 32.
Patent GB-373541-A (GB)
Title: Improvements in and relating to spades. shovels, forks and like implements
IPC: B25G3/02
Filed: 1931-11-10
Abstract: 373,541. Spade &c. handles. EWERHARD, P., 2, Mittelstrasse, Gevelsberg, Germany. Nov. 10, 1931, No. 31186. [Class 61 (i).] D-handles for hand implements, such as spades &c., are provided with automatic tensioning devices to prevent splitting of the grips through shrinkage of the wood, the devices comprising tension springs held stretched inside the grips between two pressure plates which exert pressure on the ends of the grips, The grip b, Fig. 1, has a chamber c, housing a spring d, and pressure plates f are joined to the ends e of the spring so as to press against the ends of the grip. A number of ways of securing the spring between the plates f are described. The circular spring end e may be passed through a slot k in the plate f, Fig. 3, and then turned through 90‹, or it may be affixed to a hook or loop in the plate. The plates f have two or more hollow points m punched in them, which are forced into the end faces of the grip to prevent rotation of the plates. The spring chamber c may be lined with a sleeve h, Fig. 17, screwed in or otherwise secured in position. In a modification the sleeve h, Fig. 19, guides pins i to the inner ends of which the spring is fastened, the heads of the pins bearing against the ends of the grip. A grip roller may be secured as shown in Fig. 20, in which the sleeve h extends at both ends beyond the grip b<1>, the ends being received in the parts a<1>. The spring d is secured between the pressure plates as before.
Patent GB-905209-A (GB)
Title: Improvements in or relating to signal gating circuit arrangements
Inventor: MARTINEZ ANTONIO
IPC: H03K17/54
Filed: 1960-09-12
Abstract: 905,209. Thermionic valve distributers. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. June 29, 1961 [Sept. 12, 1960], No. 31312/60. Class 40 (3). Any numbers of signals, such as A, B, C, Fig. 5, are applied in sequence to output terminals O1, 02, where they appear in push-pull fashion, by means of gate stages A1- A2, B1-B2, C1-C2, which are rendered conducting in sequence by means of flip-flop circuits in the form of long-tailed pairs AS1-AS2, BS2-BS3, CS3-CS4, the circuits being triggered by controlling signals 1-4, Fig. 6, of which signals, such as 2, are effective to change the state of a circuit whilst simultaneously changing back the state of the preceding circuit. D.C. restoring diodes DA1, DA2, DB2, DB3, DC3, DC4 are associated with each control grid in the flipflop circuits. The pedestal introduced in the output signal train due to the interval preceding time t 1 , when all the gates are inoperative, may be avoided by including an additional gate stage which is operative in the interval but does not receive a signal.
Patent GB-222723-A (GB)
Title: Improvements in and connected with magneto electric machines
IPC: F02P1/00
Filed: 1923-12-13
Abstract: 222,723. North, R. B., and Allen, A. Massey-. Dec. 13, 1923. Addition to 210,529. Rotary distributors. - In magnetos having brush-holders comprising a vertical portion d provided with binding-screws or terminals o and lateral nipples at the bottom to accommodate the brushes e<1>, the holders have horizontal seatings upon the casing, as shown in Fig. 3, and are pressed downwardly upon them by a screw i<1> acting through a spring i. The brushes at opposite sides of the magneto may be located as shown in plan in Fig. 2 whereby they make different tracks on the rotary member of the distributor, although engaging the same contacts c', c<2> thereon.
Patent GB-1240642-A (GB)
Title: Improvements in or relating to a convector heater
Inventor: BROWN WILLIAM GORDON
IPC: F24D13/02
Filed: 1967-07-07
Abstract: 1,240,642. Ventilators. W. G. BROWN. 15 July, 1968 [7 July, 1967], No. 31520/67. Heading F4V. [Also in Division H5] A convector heater 10, in a door comprising a framework 12 mounting opposed panels 11, heats cool air entrained by a duct 13 from the bottom of the door and the heated air is exhausted via a duct 19 through an opening 23 near the top of the door. The inside faces of the panels 11 are covered with aluminium foil or a metallic based spray. An automatic thermostatic control (not shown) is provided to control the temperature in the room. The heater 10 includes an electrically heated plate 25, in a metal trunking 26, controlled by a switch 28 with an indicator light 29. The metal parts of the heater are earthed. A metal trunking 22 in duct 19 minimizes loss of heat by radiation from the heated air.
Patent GB-664839-A (GB)
Title: Manufacture of anthraquinone derivatives
IPC: C09B1/24
Filed: 1948-12-06
Abstract: 1 - Aminoanthraquinone - 2 - sulphonic acids are made by heating the corresponding 1-aminoanthraquinones unsubstituted in the 2-position with a mixture of a sulphonating agent and a tertiary nitrogen base which is substantially not sulphonated under the reaction conditions, the whole or a part of the mixture being in the form of a labile addition product of the sulphonating agent and the tertiary base, and the said base being used in less than three molecular proportions per mol. of sulphonating agent. Examples describe the heating of the following substances with chlorsulphonic acid and pyridine, alone and in the presence of nitrobenzene, tetrachlorethane, or o - dicchlorbenzene; (1) 1 - aminoanthraquinone, (2) 1 - amino - 5 - methoxy - nitro -, sulpho-, or carboxyanthraquinone, (3) 1-amino-6 or 8-chloranthraquinone, (4) 1 - amino - 6,7 - dichloranthraquinone, (5) 1,5- or 1,8-diaminoanthraquinone.  Also in examples, 1-amino-anthraquinone is heated in tetrachlorethane with pyridine and oleum or sulphur trioxide, and with quinoline and oleum. Dimethylamino-cyclohexane is specified as a base.  The sulphonic acid may be brominated without isolation.  A sample has been furnished under Sect. 2 (5) of the Acts of a product prepared by heating 1-aminoanthraquinone with triethylamine and oleum in tetrachlorethane.ALSO:1-Aminoanthraquinone-2-sulphonic acids are made by heating the corresponding 1-amino-anthraquinones unsubstituted in the 2-position with a mixture of a sulphonating agent and a tertiary nitrogen base which is substantially not sulphonated under the reaction conditions, the whole or a part of the mixture being in the form of a labile addition product of the sulphonating agent and the tertiary base, and the said base being used in less than three molecular proportions per mol. of sulphonating agent. Examples describe the heating of the following substances with chlorosulphonic acid and pyridine, alone and in the presence of nitrobenzene, tetrachlorethane, or o-dichlorbenzene; (1) 1-aminoanthraquinone; (2) 1-amino-5-methoxy-nitro-, sulpho- or carboxy-anthraquinone; (3) 1-amino-6 or 8-chloranthraquinone; (4) 1-amino-6,7-dichloranthraquinone; (5) 1.5- or 1.8-diamino-anthraquinone.  Also in examples, 1-aminoanthraquinone is heated in tetrachlorethane with pyridine and oleum or sulphur trioxide, and with quinoline and oleum. Dimethylamino-cyclohexane is specified as a base.  The sulphonic acid may be brominated without isolation.  A sample has been furnished under Sect. 2 (5) of a product prepared by heating 1-amino-anthraquinone with triethylamine and oleum in tetrachlorethane.
Patent GB-206709-A (GB)
Title: Improvements in and relating to dish washing machines
IPC: A47L15/06
Filed: 1922-11-20
Abstract: 206,709. Doble, C. F. Nov. 20, 1922. Plates, dishes, and the like, washing. - In a machine of the type having vertically rotating blades which throw liquid upwards against the dishes and also rotate in a horizontal plane, a screen is mounted to rotate horizontally with the blades and separate solid particles from the used liquid. The blades 5 are mounted on a horizontal shaft 3 journaled in a rotary support 4 at the base of a cylindrical tank 1 containing a basket 2 for the dishes. A motor 7 drives the shaft 3 through gearing 11, 12 and the resistance of the liquid in the tank causes the.support 4 to rotate on its bearing 10. Fixed to the support is a curved apron 6 to prevent water being thrown laterally by the blades and a meshwork basket 17 carried by this apron catches the drippings from the dishes and retains the solid particles. The basket may conform to the shape of the tank and is readily removable; it may have a hinged bottom to facilitate cleaning. In a modification, Fig. 7, the screen 30 is farmed as an extension of the apron 6 so as to partially enclose the blades and prevent solid particles reaching them.
Patent GB-1397964-A (GB)
Title: Photographic silver halide material containing dye-releasing compound
IPC: G03C8/10
Filed: 1972-07-06
Abstract: 1397964 Dyes containing hydroquinone sulphone radicals EASTMAN KODAK CO 6 July 1972 [6 July 1971] 31697/72 Heading C4P [Also in Divisions G2 and C2] 3 - [4 - (4 - Phenylazobenzamido)phenylsulphonyl] - 5 - pentadecylhydroquinone is prepared by reducing over palladium on carbon at 2 atmospheres hydrogen pressure in tetrahydrofuran 3 - (4 - nitrophenylsulphonyl) - 5 - pentadecylhydroquinone, removing the solvent in vacuo, dissolving the resulting gum in dry dioxane and adding 4-phenylazobenzoyl chloride and quinoline. 3-[4-(1-Hydroxy-4-isopropoxy-2- naphthylazo)phenylsulphonyl]- 5 - pentadecylhydroquinone diacetate is prepared by reducing in tetrahydrofuran over palladium on carbon 3 - (4 - nitrophenylsulphonyl) - 5 - pentadecylhydroquinone diacetate, filtering off the catalyst, removing the solvent in vacuo, dissolving the resulting gum in acetic acid, H 2 SO 4  and NaNO 2  and thus diazotizing and adding the solution to 4-isopropoxynaphthol in pyridine and methanol at 0‹ C. The corresponding hydroquinone is prepared by hydrolysing under nitrogen the hydroquinone diacetate in ethanol, water and 50% NaOH. 3 - [4 - (1 - Phenyl - 3 - methylcarbamyl- 4 - pyrazolin - 5 - onylazo)phenylsulphonyl] - 5- pentadecylhydroquinone is prepared by diazotizing 3 - (4 - aminophenylsulphonyl) - 5 - penta decylhydroquinone and adding the diazotized mixture to a solution of 1-phenyl-3-methylcarbamyl-5-pyrazolone in pyridine and methanol at 0‹C. 2 - Chloro - 3 - {4 - [4 - (1 - phenyl - 3 - methylcarbamyl - 4 - pyrazolin - 5 - onylazo)phenylsulphonamido]phenylsulphonyl} - 5 - pentadecylhydroquinone is prepared by mixing 2-chloro-3- (4 - aminophenylsulphonyl) - 5 - pentadecylhydroquinone, 4 - (1 - phenyl - 3 - methylcarbamyl - 4 - pyrazolin - 5 - onylazo)phenylsulphonyl chloride and pyridine, refluxing and pouring into cold water. 3-{3-[3-Oxo-4-benzamido-6- (4 - hydroxy - 3,5 - dichlorophenylimino)cyclohexadienylcarbamyl]- phenylsulphonyl} - 5- pentadecylhydroquinone benzylcarbonate is prepared by mixing 3-[3-(3-hydroxy-4-benzamidophenylcarbamyl)phenylsulphonyl]- 5 - pentadecylhydroquinone benzylcarbonate and 2,6- dichloro - 4 - N - chloroquinoneimine in tetrahydrofuran at room temperature.
Patent GB-845953-A (GB)
Title: A method of producing accurate graduations in annular glass rings or discs
IPC: B44B3/00
Filed: 1958-10-03
Abstract: 845,953. Indicating-apparatus. KERN & CO. A.G. Oct. 3, 1958 [Oct. 15, 1957], No. 31715/58. Class 106 (4). [Also in Group XX] An annular glass ring or disc 1, Fig. 4a, which is to be accurately graduated, is permanently secured to a metallic ring support 2 before being secured by the support 2 in the dividing machine, the support 2 also forming the means whereby the glass ring is secured to the geodetic measuring instrument or other instrument on which it is used. The disc 1 is clamped by ring 3 to the support 2 a layer of putty being provided between the flange of ring 3 and disc 1. The bore in support 2 accurately fits the spindle 5 of the dividing machine and is held thereon by plate 6 and screw 7. After graduation the whole unit 1, 2, 3 is mounted on the geodetic or other instrument, the bore of support 2 accurately fitting the shaft of the instrument. In a modification, Fig. 4b, the glass ring 11 is secured by putty to a support 12.
Patent GB-1184195-A (GB)
Title: Resilient Seat Support
Inventor: SWENSON RICHARD F
IPC: B60N2/50
Filed: 1967-07-11
Abstract: 1,184,195. Resiliently mounted seats. SWENSON CORP. 11 July, 1967, No. 31764/67. Heading A4U. In a tractor seat mounting, the point at which the force of gas spring 64 is applied to link 50 is variable along the link, by moving slide 72 therealong. The slide may be moved by screw-threaded spindle 84 and knob 90, or, alternatively, a handoperated nut (82, Fig. 6, not shown) may be provided on bolt 74. In a modification, the gas spring (114, Fig. 7, not shown) extends from the seat frame (100) to a slide (120) movable along a lower link (103). The gas spring is of known type, in which the piston may be formed with damping orifices or valves, to give a low degree of damping when the piston rod is moved into the cylinder, and a high degree of damping when it is moved in the opposite direction.
Patent GB-537125-A (GB)
Title: Improvements in and relating to sockets for thermionic valves and the like
IPC: H01R33/76
Filed: 1939-12-08
Abstract: 537,125. Thermionic valve holders ; twopart couplings. CINCH MANUFACTURING CORPORATION. Dec. 8, 1939, No. 31801. Convention date, Dec. 17, 1938. [Class 38 (i)] A socket-member for thermionic valves &c. having a number of contacts is fitted with an earthed metal shield arranged between certain of the contacts and connected to one of them. The shield may take the form of a plate 28, Fig. 2, riveted at 14 to the insulating base 2 and made integral with an earthing socket 38. This socket is formed as a bifurcated clip, one arm that is connected to the shield 28 lying against the side of the hole 19 in the base 2. the other arm being free but guided by a slot fitting over the edge of the flat part 29 of the plate 28. The pin that enters the socket 38 is connected to the metal envelope or other part of the valve to be earthed. In another form, the shield is the central metal guide tube 86, Fig. 19, which is in contact with a strip 94 associated with the earthing-socket 92. The strip may also lie in contact with a dished metal body 78 by which insulating base 75, 76 is mounted on a metal panel 82. If the dished metal body is not used, the earthing socket is formed with a tag bent up for soldering to the panel. Specification 530,701 is referred to.