baber/WOPTO huggingface dataset:
Patent GB-790728-A (GB)
Title: Improvements in the production of dyestuffs of the anthraquinone series
IPC: C09B1/22
Filed: 1956-03-23
Abstract: The invention comprises dyes of the formula: <FORM:0790728/IV (b)/1> wherein Y is amino, arylamino, or hydroxy, R is alkyl, aralkyl, or cycloalkyl, and n is 1 or 2.  They are made by esterification of the corresponding acids, or of acids which contain in 1,4-positions nitro groups or halogen atoms followed by replacement of such by amino.  To esterify, the acid chlorides may be heated with excess alcohol, or the acids themselves may be heated with the sulphuric esters of the alcohols.  The products dye polyesters, nylon, polyurethanes, and cellulose esters and ethers blue or violet shades.  In examples: (1) 1-amino - 4 - nitroanthraquinone - 2 - carboxylic acid chloride is boiled with excess cyclohexanol, isobutyl alcohol, or ethanol, followed by reduction with stannous chloride or sodium hyposulphite; (2) 1-amino-4-bromanthraquin-one-2-carboxylic acid chloride is heated with cyclohexanol, and the bromine is replaced by amino using p-toluenesulphonamide in the usual way, or with ethanol, followed by condensation with aniline to replace the bromine; (3) 1,4 - dichloranthraquinone - 5 - or - 6 - carboxylic acid chloride is boiled with ethanol, followed by replacement of both chlorine atoms with amino, using p-toluenesulphonamide in the usual way; (4) 1,4-diaminoanthraquinone-2,4-dicarboxylic acid and 1-amino-4-hydroxy-anthraquinone-2-carboxylic acid are each heated with methylsulphuric acid.  Other alcohols specified are methanol isopropanol, hexanol, octanol, dimethyl cyclohexanol, benzyl alcohol, phenyl ethyl alcohol.
Patent GB-841192-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: GABOR DENNIS
IPC: H01J31/12
Filed: 1956-03-23
Abstract: 841,192. Cathode-ray tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 13, 1957 [March 23, 1956], No. 9192/56. Class 39(1). In a "flat" cathode-ray tube such as described in Specification 739,496 in which the tip of the beam is deflected in one dimension into impact with the screen by a voltage wave running down the conductors of an array 3, Fig. 1, situated in a plane parallel to the screen 2, the array is discharged by electron bombardment in one zone 6<SP>1</SP> to set up the voltage wave and recharged by electron bombardment in another zone 6. The two zones 6, 6<SP>1</SP> are formed by U-shaped sections at the ends of the array and may be bombarded by the main beam itself or by separate beams. In discharging zone 6<SP>1</SP> the conductors are staggered with respect to the main section of the array so that the main beam is deflected progressively on to the conductors by a transverse electrostatic field. In recharging zone 6 the beam is deflected by grid 127 which also acts as a collector of secondary electrons, the conductors rising by secondary emission to the potential of grid 127. The conductors are also staggered in zone 6 in the same sense as in zone 6<SP>1</SP> where the recharging is effected at the end of each line scan or in the opposite sense where the recharging is effected during the frame flyback. A residual region at the bottom of the array may be recharged by causing the beam to fall on the whole of this region. This may be done by applying a deflecting potential to the repeller electrode 15, Fig. 2, of the reversing lens 13, 15 below the array. Grid 127 may be replaced as collector of secondary electrons by an electrode situated to one side of the zone and the deflection of the beam or to the conductors effected by the transverse electrostatic field set up by the staggered conductors. The discharging or recharging may be effected by temporarily connecting the conductors of the array to a source of potential, the beam C, Fig. 11a falling on a luminescent layer 119 to excite a photo-conductive layer 121 inserted between the conductors 3 and a terminal 117, Fig. 12(a), illustrates a gun in which the grid electrode 139 has apertures R, G, B, backed by individually modulated cathodes, Fig. 12c, for use in colour television and larger apertures 140, 140 backed by further individually modulated cathodes 141, Fig. 12(b), for producing beams for use in the discharging and recharging processes. The colour tube employs a shadow mask and sideways displacement of the beam to vary the angles of incidence, as in Specification 734,496. Electrode 114, Fig. 1, capacitively coupled to the array conductors 3 provides an output signal which may be used to control the speed of the discharging or recharging process e.g. by variation of the beam intensity or the time of "dwell" of the beam in the discharging or recharging zone. The amplitudes of the line and frame sweeps sawtooths are adjusted to correct for trapezium distortion by reference to the signal picked up by electrode 114.
Patent GB-736895-A (GB)
Title: Improvements in apparatus for feeding fluids to a body of liquid
IPC: C02F1/68
Filed: 1953-04-02
Abstract: 736,895. Mixing-appliances. WALLACE & TIERNAN, Inc. April 2, 1953 [April 4, 1952], No. 9222/53. Class 86 [Also in Group I] In apparatus for feeding a fluid, for example a liquid slurry of a filter aid or a similar suspention to a body of liquid, a quantity of the fluid is drawn at separated intervals from a reservoir into a chamber by increasing the volume of the chamber while a valve between the reservoir and the chamber is open, and at times between these intervals the valve is closed and a liquid flow is created from a source of flushing liquid through the chamber to the said body of liquid so that the liquid mixes with the fluid and the mixture then flows into the said body of liquid. A diaphragm 30a, which is reciprocated by means of a cam 30b on a rotating shaft 19, draws a measured volume of slurry or suspension from the reservoir 10 into the dilution chamber 20 through a port 12 having a valve 21 which is opened only for the duration of the suction stroke of the diaphragm 30a by a cam 28 on the shaft 19. Water, to which slurry is to be added, flows along a pipe 35 having a restricted orifice 44 from each side of which pipes 36, 43 connect with the ends of the dilution chamber 20 through valves 38, 46. The valves 38, 46 are opened by cams 41, 49 on the shaft 19 when the diaphragm 30a has completed its suction stroke and when the valve 21 is closed, and water then flows from the pipe 35 through the branch 36 and into the chamber 20 where it dilutes the slurry previously there introduced, and carries the diluted slurry through the branch 43 into the pipe 35. The valves 21, 38 and 46 are moved into open and closed position only when the diaphragm 30a is stationary. The diaphragm 30a is of adjustable stroke. The slurry in the reservoir 10 is kept in even suspension by agitating air supplied through a rubber check valve 13 from an air compresser 14.
Patent GB-236997-A (GB)
Title: Improvements in and relating to the construction of reinforced concrete ships
IPC: B63B3/06
Filed: 1924-04-14
Abstract: 236,997. Robinson, R. H. April 14, 1924. Concrete vessels; frames and framing.-Pre-cast hull panels each of which comprise a marginal metallic frame and a wall of concrete cast iron and having its surface raised above the frame are adapted to be set in openings formed by precast longitudinal frames and spaced transverse girder frames connecting the same. In the form shown in Fig. 3, the main tubular longitudinal members 1, 2, are of approximately 90‹ segments in cross section and constitute the corners of the ship section. Each longitudinal comprises three, radially-disposed main reinforcements 3, 4, 5, and barlike reinforcements 6, 7. The reinforcements 3 terminate in the case' of the upper longitudinals, in rails 10 which serve as tracks for a travelling crane. The transverse members 11, 15 and the main and sub-longitudinals 18, 17 are of lattice structure. The precast plates which are inserted in the spaces formed by the intersecting main frame members comprise a metal lic marginal frame 20, Fig. 12, with sets of reinforcing-rods attached thereto concrete being cast in the interstices in a mould which leaves a flange like extension on the finished plate. An outer layer of bituminous concrete is applied after the concrete proper has been screeded and hardened. Various forms of these panel plates are described: some are of lenticular cross-section and cellular in structure. The panel plates are united to the main frame members in various ways so as to produce a rigid metal to metal union as, for example, in Fig. 11, where the vertical web of the marginal angle and the plate is riveted to a similar angle in the frame and concrete poured in the closed space 26 so formed. The form and disposition of the reinforcement members in the frame members is susceptible of considerable modifications and in some cases the longitudinals are solid instead of hollow. In certain forms the sides and bottom of the hull are bulged outwards and the longitudinal members are multiplied but made lighter. Hulls of this character may be supported by a central cross-section pillar. The methods of construction employed include means in which the use of a slipway is eliminated, three main longitudinals being floated into position and secured by transverse girders; the bottom panel plates are then secured in place and their joints with the main frames closed. The bottom may then be turned right side up and the sides of the hull fabricated.
Patent GB-871999-A (GB)
Title: Improvements in or relating to the control of electrical machines
Inventor: WOODWARD WILLIAM HENRY
IPC: H02P7/34
Filed: 1958-03-24
Abstract: 871,999. Automatic speed-control systems. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Dec. 11, 1958 [March 24, 1958], No. 9431/58. Class 38 (4). The field excitation of a Ward-Leonard generator is controlled by variable width current pulses from a transistor amplifier which is controlled by a switching saw-tooth waveform and a D.C. control signal. The field 1 of the generator G is energized by transistors T5, T6 controlled via an amplifier T3, T4, by a bi-stable pair of transistors T1, T2, to which are applied a control current and a switching saw-tooth. The control current is the difference between a speed reference voltage generated at 30 and a voltage proportional to the back E.M.F. of the motor M applied over lead 4. The saw-tooth signal is obtained by integrating the output of transistors T5, T6 in an R.C. network 3.
Patent GB-162511-A (GB)
Title: Apparatus for preventing the theft of upper garments and the like
IPC: E05B69/00
Filed: 1920-04-01
Abstract: 162,511. Hansen, R. April 1, 1920. Portable locks. - A device for preventing the theft of upper garments has a lock casing a, fitted with a toothed plate b, in which works a vertically movable toothed jaw c. The sleeves of the garment can be placed between the teeth, and the jaw c pressed tightly down, securing them. The tumblers e engage in the vertical teeth d of the member c and hold it in the closed position, being kept in engagement by the springs i. When the tumblers are released from their engagement in the teeth of the member c, by a key working in the slot g, the spring h causes the jaws to spring open.
Patent GB-856513-A (GB)
Title: Casement window fastenings
Inventor: JOYNSON HERBERT FRANCIS
IPC: E05B13/00
Filed: 1958-03-25
Abstract: 856,513. Turnbuttons; key locks. YALE & TOWNE MANUFACTURING CO. March 17, 1959 [March 25, 1958], No. 9505/58. Class 44. A casement window fastening comprises in combination a body part 7 adapted to be mounted adjacent the free edge of the window, a handle 9 angularly movable on the body part 7, a catch piece 10 angularly movable relative to the handle 9, a pin 11 spring-loaded in a direction to clutch the catch piece 10 to the handle 9 for angular movement therewith, a spring-loaded bolt 13 movable by its spring 14 in a direction to disengage the pin 11 and to lock the catch piece 10 in an operative position, a key operable lock 16 for moving the bolt in opposition to its spring-loading, and a manually releasable press button 17 for retaining the bolt 13 against the action of its spring 14. The lower portion of the body part 7 is bifurcated to provide limbs 7a in which is rotatably mounted a spindle 8, the latter having fixed to the outer end thereof the handle 9 and having rotatably mounted, on the portion thereof disposed between the limbs 7a, the catch piece 10; the latter portion of the spindle 8 has slidably mounted therein the pin 11 which is spring- loaded to project radially from the spindle 8 into a recess 12 in the catch piece 10. When the catch piece 10 is in the operative position in which it engages a fixed part of the window surround a part 12a of the recess 12 is disposed opposite the lower end of the bolt 13; the latter is normally retained in the retracted position by the button 17 which is spring-loaded to engage a notch 13b in the bolt 13 and upon the button being depressed, the bolt is urged by its spring 14 to enter the part 12a to lock the catch piece 10 and to overcome the spring-loading of the pin 11 so disengaging the latter from the catch piece 10. The lock 16 is provided with a barrel having an eccentrically mounted peg 16a at its inner end, the peg 16a, when the lock is operated, engaging a notch 13a in the bolt 13 to retract the latter which is then automatically retained in this positon by the button 17. The body part 7 has secured thereto by screws 21 a detachable cover 20 which is undercut at 20a for slidably receiving in engagement therewith a mounting member 22, the latter member and the cover 20 being subsequently secured together by a transversely extending-pin 24. The member 22 is adapted to be secured to the window by screws 23 and when the member is so secured and the cover 20 is engaged therewith the screws 21 and 23 are inaccessible. When the button 17 is depressed to release the bolt 13 the button projects through a hole in the cover 20 into a recess 26 in the member 22 thus ensuring against relative sliding movement between the cover 20 and the member 22.
Patent GB-812010-A (GB)
Title: Improvements in activation of clay by acid treatment, oil aging and calcination
IPC: B01J21/16
Filed: 1956-03-27
Abstract: Kaolin is modified in a manner similar to that described in the parent Specification by mixing raw clay with sulphuric acid and calcining after ageing without any washing treatment.  The ageing is conducted in a hydrocarbon oil which is substantially unreactive to H2SO4, e.g. white mineral oil or kerosine.  Preferably up to 10 per cent by weight of the total mix of a combustible filler is mixed with the clay and sulphuric acid, preferred fillers being wood flour, sawdust, corn meal or activated carbon.  In the preferred embodiment, clay is mixed with a dosage of 20 to 125 weight per cent of 50-100 per cent sulphuric acid, formed into pellets and is aged in a white mineral oil for a period of 1 to 24 hours within a temperature range of 220 DEG  to 400 DEG  F. and subsequently calcined at 900 DEG  to 1600 DEG  F. for 1 to 24 hours.
Patent GB-1094840-A (GB)
Title: Improvements in or relating to silk screen printing machines
IPC: B41F15/08
Filed: 1965-03-05
Abstract: 1,094,840. Stencilling-apparatus. F. BROCKMANN. March 5, 1965 [March 6, 1964], No. 9517/65. Heading B6C. A screen printing machine suitable for printing on curved articles such as bottles comprises a screen mounted in a frame 5 and adapted to be reciprocated in its own plane, and a feeding and mounting device 6 of turret construction rotatably mounted on an intermittently rotated shaft 7 and arranged to rotate each bottle into a registered position and to present it to the underside of the screen. The base of each bottle is located in a retaining ring such as 19 which is rotatably mounted in a disc on an annular member 10, the neck of the bottle being engaged by an element 22. This element is spring-loaded and is retracted in its lowermost position by cam means 33, 34 to allow the printed bottle to be removed. A device 30 allows adjustment of the elements to facilitate the printing of bottles of different size. At the indexed position of each bottle prior to the printing station, the bottle is rotated by an axially-movable adjusting device, Fig. 5 (not shown), including a rotatable shell which engages the ring 19. The bottle is rotated until an axial pin on the device engages a groove in the base of the bottle. In the printing position the ring 19 is engaged by a further axially movable shell, Fig. 4 (not shown). Said shell is mounted on a shaft which is geared to a rack mounted on the screen frame and moved by the main drive of the machine so that the bottle rotates as the screen is reciprocated.
Patent GB-1246257-A (GB)
Title: Magnetic tape cartridges
IPC: G11B15/61
Filed: 1970-02-27
Abstract: 1,246,257. Tape cassettes. SONY CORP. 27 Feb., 1970 [28 Feb., 1969; 23 April, 1969], No. 9548/70. Heading G5R. A magnetic tape cassette includes guides movable between positions in which the tape is formed into a loop held against a cavity designed to receive a rotary magnetic head, and in which the tape is released so as to be engaged by the rotary head. The cassette contains coaxial reels 37a, 37b and a cavity defined by a wall 46 having slits 48, 49 for passage of the tape, and containing rotatable guides 55a, 55b having helical edges 53a, 53b and slots 52a, 52b with guide posts 54a, 54b continuous with the shorter sides of the slots 52a, 52b. Each guide has a toothed portion 56a, 56b engageable with pinions 57a, 57b on shafts 58a, 58b carrying meshed pinions 59a, 59b, so that upon manual rotation of guide 55a through 180 degrees, guide 55b rotates 180 degrees in the opposite sense. The tape extends from the lower reel 37b, through slot 48, around the guides 55a, 55b, in a loop inside the posts 54a, 54b, out through slot 49 and on to upper reel 37a. Rotation of the guides is limited by engagement of studs (77, 78, Fig. 9, not shown) on the upper guide and wall 46, and by a detent roller (25, Figs. 1, 10, 11, not shown) in a cam slot 71 in the lower guide 55b, this also locking the cassette to the machine and closing a switch to energize the capstan and head motor. Other safety features include a pawl 67a normally engaging the teeth on guide 55a and disengaged by a guide-pin 29a, spool brakes 43a, 43b disengaged by guide pin 29b, and guides 64a, 64b, 64c on levers 63a, 63b, 63c co-operating with cam surfaces on the guides 55a, 55b to guide the tape around erase head 9, and audio and control head 10 once properly loaded. In a modification the pawl 67a may prevent engagement of the pinch roller and may co-operate with a manual control knob (13, Fig. 13, not shown) to allow the cassette to be loaded and unloaded only with the control in the STOP position.
Patent GB-636034-A (GB)
Title: Improvements in or relating to acrylonitrile
Filed: 1947-04-10
Abstract: Acrylonitrile is prepared by contacting acetylene and hydrocyanic acid at elevated temperature with an aqueous acid-reacting solution of a cuprous salt, zinc chloride and a solubilizer for the cuprous salt, e.g. a soluble salt of ammonium, an amine or an alkali metal. Metallic copper may be added.  The temperature is 60-100 DEG  C., preferably 80-95 DEG  C.  Cuprous salts specified are the chloride, bromide, iodide, cyanide, formate and acetate.  The acid reaction is obtained by adding a halogen acid to a pH of 1-4.  A typical catalyst comprises cuprous chloride 164, ammonium chloride 103, concentrated hydrochloric acid 2, and water 175 parts by weight, with .05-.2 mol. of zinc chloride per mol. of cuprous chloride.  The partial pressure of the acetylene over the catalyst preferably exceeds that of the hydrocyanic acid as disclosed in U.S. Specification 2,385,469. Examples illustrate the effect of additions of zinc chloride to the cuprous chloride catalyst.  Temperature is 86 DEG  C. and partial pressure of hydrocyanic acid 100 mm.  The Specification as open to inspection under Sect. 91 comprises the use of bismuth chloride instead of or in addition to zinc chloride.  This subject-matter does not appear in the Specification as accepted.
Patent GB-622878-A (GB)
Title: Improvements in or relating to electric lighting fittings
IPC: F21S4/00
Filed: 1947-04-10
Abstract: 622,878. Imitation candle lamps. GENERAL ELECTRIC CO., Ltd., FREEMAN, A. A. H., and COLEMAN, A. S. April 10, 1947, No. 9583. [Classes 75(iii) and 75(iv)] In an electric light fitting including a tube 11 similar in appearance to a candle, the means for attaching one end of the tube 11 to a supporting bracket 1, socket, sconce or like support comprises a plurality of inclined surfaces 12 spaced around the inside of the tube and engaged by a plurality of fixed lugs 10 carried by the bracket 1. The tube 11 may be of white or cream translucent material, and the surfaces 12 are preferably two in number for co-operating with a pair of lugs 10 formed by bending the ends of a U-shaped member 6 secured by a screw in a recess 8. The lampholder 14 may be provided with spring tongues 17 which engage the inside of the tube. The bracket 1 may be of channel section providing a space for an electric supply lead.
Patent GB-471214-A (GB)
Title: Dry cells and processes for making the same
IPC: H01M6/08
Filed: 1936-04-01
Abstract: 471,214. Batteries. NATIONAL CARBON CO., Inc. April 1, 1936, No. 9614. Convention date, March 18. [Class 53] A dry cell having a metal cover and a container forming one electrode is provided with a protective layer which covers the joint between the cover and one or both of the electrodes. The protective layer consists of a thermoplastic or polymerizable material and may be applied to the joint after the cover has been secured in position. Fig. 1 shows the upper part of a cell having a metal cover A secured to the container Z and resting on an insulating washer W carried by the metal cap B on the carbon electrode C. The latter is treated to render it non-porous to liquids but permeable to gases which can escape through a perforation B<11> in the cap B. The cell cover is provided with a protective layer of material P which may be applied by placing a disc of the material on a partition K and then securing the cover in position, inverting the cell to cause the disc of material to drop on to the cover and then heating the cover to melt the disc. A smaller disc of material may be used so that when melted it covers only the joint between the cover and the carbon electrode as shown in Fig. 4, or it may be made to cover only the joint between the cover and the container Z. The material P may consist of various mixtures comprising asphalt, montan wax, talc, paraffin, tung oil, bituminous substances, chlorinated paraffin, rosin, rubber, stearic acid, tallow, &c., and it may be heated electrically, and instead of being introduced into the cell in the form of a disc it may be in the form of pellets placed on the partition K. Alternatively, the material may be poured in molten condition on to the partition K and the cover then placed in position and the cell inverted before the material has solidified. In a further method, the material is at first liquid but polymerizes into the solid form. For this purpose a mixture of tung oil, ferric chloride and acetone may be used. One of the constituents may be applied to the cover, the others being placed on the partition K so that the reaction is delayed till the cell has been inverted. Specification 356,271 is referred to.
Patent GB-142279-A (GB)
Title: Improvements in rocking horses and like amusement devices or toys
IPC: A63G15/00
Filed: 1919-04-17
Abstract: 142,279. Kendrick, R. April 17, 1919. Horse and like velocipedes for children.-A seat 7 and horse's head 8 are mounted on a board 3, which is hinged at 5 to a carriage 1 and supported by springs 6. Stirrups 19 are fixed to the carriage J. or hung from the board 3. Movement of the rider's body makes the board 3 rise and fall. A connecting-rod 13 and chain driving-gear may be provided, as shown, to propel the carriage 1. For steering purposes, the front wheels may be suitably pivoted and connected by cords C with steering-handles 10.