baber/WOPTO huggingface dataset:
Patent GB-862825-A (GB)
Title: Improvements in or relating to cyanine and merocyanine dyes
Inventor: KENDALL JOHN DAVID
IPC: C09B23/10
Filed: 1957-02-06
Abstract: Compounds of the general formula:-  <FORM:0862825/IV (b)/1> wherein Rc is an alkyl or aryl group and A is O, are prepared in the enolic form by treating a compound of the formula:-  <FORM:0862825/IV (b)/2> with acetic anhydride and a strong acid catalyst such as phosphoric or sulphuric acid.  Examples are given of the preparation of 2-methyl- and 2-phenyl-4-hydroxy-7-methyl-1; 5; 6-triazaindolizines. Compounds of the general formula VIII wherein A is S are prepared by treating the corresponding oxygen compounds with phosphorus pentasulphide.  2; 7-Dimethyl-4-mercapto- 1:5:6-triazaindolizine and 2-phenyl-4-mercapto-7-methyl-1:5:6-triazaindolizine are produced in this way.  By treating the 4-mercapto compounds with an alkyl or aralkyl salt, 4-alkylthio- or 4-aralkylthio-triazaindolizines are produced.  Examples are given of the preparation of the 4-methylthio, 4-ethylthio- and 4-benzylthio- 2:7-dimethyl 1; 5; 6-triazaindolizines and 2-phenyl-4-methylthio-7-methyl- 1; 5; 6- triazaindolizine.  The corresponding 4-alkoxy or 4-aralkoxy compounds are prepared by treating the compounds of formula VIII (A=O), e.g. with POCl3, to give the 4-chloro compound, with is then reacted with the sodium salt of an alcohol, NaORa (Ra=alkyl or aralkyl).  By this method 4-methoxy-2:7-dimethyl-1:5:6-triazaindolizine is prepared from the corresponding 4-chloro-compound.  Quaternary salts of the general formula:-  <FORM:0862825/IV (b)/3> wherein R and Ra are alkyl or aralkyl, Rc is alkyl or aryl, A is O or S and X is an anion, are prepared by treating the bases, prepared as described above, with a compound RX, such as methyl iodide or ethyl iodide. 3-Methylpyrazole-5-carbohydrazide is prepared from ethyl acetopyruvate and hydrazine hydrate.  The corresponding 3-phenylcompound is similarly prepared from ethyl benzoylpyruvate.ALSO:Methine dyes having one of the general formulae:-  <FORM:0862825/IV(c)/1> wherein R, Ra and Rb are alkyl or aralkyl groups, Rc is alkyl or aryl, A is O or S, n is 0 or 1, X is an anion and Da and Db complete 5- or 6-membered heterocyclic nuclei, are prepared by reacting a 2; 4-substituted-7-methyl-1; 5; 6-triazaindolizinium quaternary salt with a cyclammonium quaternary salt having a reactive a -thioether, thioethervinyl or acetanilidovinyl group, or with a compound of the formula:- <FORM:0862825/IV(c)/2> The latter compound may be replaced by a cyclic ketomethylene compound and ethyl orthoformate.  Symmetrical trimethine dyes may be prepared from 2 mols of the triazaindolizinium acid and one mol of an alkyl orthoformate.  Examples are given of the preparation of dyes wherein R and Rb are methyl or ethyl, Ra is methyl, ethyl or benzyl, Rc is methyl or phenyl, Da completes a benzthiazole, 5-chlorobenzthiazole, a -naphthathiazole, benzoxazole, 5-phenyl-benzoxazole, 6-ethoxybenzoxazole, 5; 6-dimethyl-benzoxazole, thiazoline, pyrroline, 3; 3-dimethyl-indolenine or 1; 5; 6-triazaindolizine nucleus, and Db is 3-ethyl-rhodanine.
Patent GB-1121423-A (GB)
Title: Magneto-optical current-measuring apparatus and method
Inventor: PEARSON RONALD FERGUSON
IPC: G01R15/24
Filed: 1967-01-02
Abstract: 1,121,423. Light modulators. MULLARD Ltd. 27 Jan., 1967, No. 4182/67. Heading H4F. [Also in Divisions G1 and H1] A Faraday effect device in the form of a disc of undoped or indium-doped yttrium-irongarnet is used in photo-electric current measurement apparatus.
Patent GB-275830-A (GB)
Title: Improvements in and relating to hand torches, and other nonmissile incendiary, smoke, lachrymatory or like devices for military or other purposes
IPC: F42B12/50
Filed: 1926-02-13
Abstract: 275,830. Ranken, F., and Nobel Industries, Ltd. Feb. 13, 1926. Pyrotechnic devices.-Incendiary, smoke, and lachrymatory torches of a non-missile character comprise a casing a, Fig. 3, provided with a lever lid at the bottom or the top or both bottom and top d, e. Cover lids b, c may be provided ir addition. A primer i in a serrated washer j of the kind described in Specification 270,811 is placed beneath the top lever lid e against an igniter l in a thimble k covered by a lid k<1>. The upper side of the primer has a match face h covered by a metal disc f, which is torn off by means of a ring g to expose the match face for use. The casing a contains a smoke-producing charge m, within which may be embedded tubes n containing a lachrymatory composition. In a modification, Fig. 8, a tube s extends above the the top lid e and is provided with tin-foil covered lateral outlets r and with an end push-in plug t to which an electric igniter w may be fitted The tubular extension s may be surrounded by a hood p, Fig. 6, provided with a lever-lid top q. When the hood is in position, and its top lid removed, the gases discharged by the lateral outlets r are baffled and directed upwards through the hood.
Patent GB-179619-A (GB)
Title: Improvements in and relating to baby carriages
IPC: B62B9/12
Filed: 1921-02-05
Abstract: 179,619. Baby Carriages, Ltd., and Hill, H. C. Feb. 5, 1921. No Patent granted (Sealing fee not paid). Push-bars.-Handle-bars for baby-carriages are detachably connected to either end thereof by lower brackets secured on the body and formed with eyes or hooks which engage hooks or eyes on the depending portions of the handle-bars, and' upper brackets or sockets on the body which engage slip-rings or sliding members on the handlebars. As shown in Figs. 1 and 5, the lower ends of the bars 5 are hooked at 4 to engage eyes 3, 12 in flanged brackets 1, 10 secured to the body, shoulders 13 being preferably formed on the bars 5. The upper brackets 2, 11 are grooved to receive the bars 5, which are secured thereto by slip-rings 8. In a modification of the upper fittings shown in Fig. 7, sliding members 14 on the bars 5 engage sockets 15 on the body of the carriage. According to the Provisional Specification,. the lower brackets may be in the form of hooked bands, the lower ends of the handle-bars being bent and sprung into or otherwise engaged with the brackets; or, the lower ends of the bars may be secured by wing nuts to the brackets.
Patent GB-1502631-A (GB)
Title: Wash programme selection and control apparatus
IPC: H01H43/10
Filed: 1975-01-31
Abstract: 1502631 Time switches ECONOMICS LABORATORY Inc 31 Jan 1975 [22 March 1974] 4307/75 Heading H1N [Also in Division G3] A wash programme controller comprises a continuous programme surface, such as 38, encoded with information representing district wash programmes and which can be driven at a first speed by a timer motor (174, Fig. 5, not shown) to actuate control means, such as cam followers 46 of switches (44, Fig. 3, not shown), to produce programme steps in time dependent sequence; and a continuous indexing surface 36 movable in positional correlation with the programme surface and having a plurality of laterally spaced tracks 34 each corresponding to a respective one of said wash programmes, and a plurality of respective sensing means, such as further switches (44), for sensing index points corresponding to the beginnings of respective programmes; and programme selection means, such as push-buttons 60, for enabling a respective sensing means corresponding to a selected programme and initiating a drive to the programme surface at a second, higher, speed until the appropriate index point is sensed by the enabled sensing means which then disconnects the fast indexing drive, powers the timer motor for drive at the first speed, and enables control means so that the selected programme may be performed. Circuitry using relays and separate drive motors for the two speeds is described with reference to Figs. 4 and 5 (not shown). Cam tracks 34 may be cut in a solid drum or provided by individually cut discs. Alternatively a movable band may be used. Instead of camming switches the indexing tracks may provide conductive portions defining the extent of a programme.
Patent GB-1179641-A (GB)
Title: Buckle for Seat Belts
IPC: A44B11/25
Filed: 1967-01-30
Abstract: 1,179,641. Buckles; latches. JIM ROBBINS SEAT BELT CO. 30 Jan., 1967 [28 Jan., 1966], No. 4366/67. Heading E2A. A buckle comprises a box member 28 having side walls supporting a sliding roller 36 round which one end of a belt is adjustably wound and a pivoting latch member 44 spring urged so that a downwardly turned tab 60 thereon engages in an aperture in a tongue member 16 to which one end of a belt is attached. A press button 86 in an aperture in a cover 70 engages a section 108 of an arm 106 of a release lever pivoting on the base member, a projecting arm 104 on the lever engages beneath a tab 62 on the latch member. Pressing the button rotates the lever to release the tab 60 from the tongue member and so free the tongue member for withdrawal from the base member.
Patent GB-746184-A (GB)
Title: Improvements in or relating to electromagnetic mercury relays
IPC: H01H50/72
Filed: 1953-02-17
Abstract: 746,184. Electromagnetic relays. BESSON & ROBINSON, Ltd., and BESSON, A. P. Feb. 17, 1954 [Feb. 17, 1953], No. 4420/53. Class 38(5) A relay comprises mercury tubes 16 mounted side-by-side in a cradle 18 pivoted at 19 between the sides of a frame 10 and biased by a spring 29. A curved strip 28 fixed to the base of the cradle 18 is engaged by a member 27 fixed to an armature 23 pivoted at 24. When the relay coil 21 is energized to attract the armature the point of contact between the members 27 and strip 28 moves upwards whereby the cradle 18 is tilted at a substantially constant speed and not at continually increasing speed in response to the increasing force acting on the armature as it approaches the core 20. The return of the cradle by the spring 29 is damped by a dashpot 30 connected between the cradle and a pivot 32 on the frame 10. The armature embodies a shading 25 co-operating with a stepped pole of the core 20 as disclosed in Specification 744,905.
Patent GB-884278-A (GB)
Title: Improvements in ball and socket joints
Inventor: PARKER ROBERT WILLIAM
IPC: F16C11/08
Filed: 1959-02-09
Abstract: 884,278. Ball-and-socket joints. ENGINEERING PRODUCTIONS (CLEVEDON) Ltd. Dec. 17, 1959 [Feb. 9, 1958], No. 4480/59. Class 65(2); In a joint having a lining socket 5, 6 of synthetic plastic material such as nylon the socket has an integral projection 6a at the end opposite that from which the ball stud projects which is sized, after the socket and ball have been positioned in the housing and before the closure member 7 is applied, to minimise axial play in the joint. Preferably the socket is made of heat-responsive material and the sizing is performed under heat and pressure conditions; alternatively, material can be removed from the projection in any manner. The socket is formed in two parts, of which the part 6 may be split in an axial plane and the part 5 may have a radius of curvature greater than the radius of the ball. A dust seal may be provided.
Patent GB-1128177-A (GB)
Title: Improvements in tubular insulating jackets for pipes
IPC: F16L59/14
Filed: 1966-02-02
Abstract: 1,128,177. Pipe insulators. GRUNZWEIG & HARTMANN A.G. 2 Feb., 1966 [3 Feb., 1965], No. 4529/66. Heading F2P. [Also in Division B5] A foamed plastics extruded tubular insulating jacket 5 for a pipe is provided with non-visible zones or planes of weakness 6 extending longitudinally of the jacket along which the jacket may be easily divided. Preferably, said zones or planes of weakness do not extend across the complete diameter of the jacket, the embodiment of Fig. 1b (not shown) illustrating zones 6 extending to different radial depths whereby peripheral thin and thick connecting edge portions 7 and 8 respectively are defined, the thick portion forming a hinge on division of the jacket along the zones of weakness and fracture of the thin edge portion. Further embodiments, Figs. 1c, 1d and 1e (not shown), illustrate zones which are of stepped, V-shaped, or staggered configuration in cross-section. The jacket is formed by extrusion through the mouthpiece of a screw extruder, Fig. 2, blades 3 on either the mandrel, the mouth-piece end face 9, or slightly downstream thereof, causing separation of the expanding plastics material. The plastics material subsequently recombines downstream of the blades thereby giving rise to the zones or planes of weakness. The blades may be radially adjustable, together or independently. The mandrel 2 of the extruder may be asymmetrically positioned so that a curved jacket is produced thereby providing insulation for pipe bends.
Patent GB-220243-A (GB)
Title: An improved nut lock
IPC: F16B39/32
Filed: 1924-02-22
Abstract: 220,243. Martin, R. W., and Martin Co., R. W. Feb. 22, 1924. Locking nuts. - Relates to nut-locks of the type in which a transverse locking-pin is disposed in a recess in the nut tangentially to the bolthole and in which the pin is pressed to its work by a coiled spring located within the recess. According to the invention, the locking-pin 17 is provided with a series of longitudinally disposed arcuate ridges 22 which engage between the bolt threads. Transverse serrations 23 are also provided to increase the locking effect. The pin 17 is held within the recess 14 in the nut 13 by a stop 19, Fig. 3, formed by swaging the edge of the recess.
Patent GB-1212261-A (GB)
Title: Windscreen washer cleaner
Inventor: FATHERS DONALD CHARLES
IPC: B60S3/00
Filed: 1968-01-30
Abstract: 1,212,261. Nozzle cleaner. PRODUCTION TOOLS (OXFORD) Ltd. 29 April, 1969 [30 Jan., 1968], No. 4647/68. Heading A2M. A nozzle cleaner comprises a pin 6 within a housing 7 and capable of being caused to project from an opening 11 in the housing 7 for cleaning a nozzle, e.g. the nozzle of a windscreen washer a tip of which is shown on the left of the drawing, the housing 7 being shaped to centre the cleaner on a nozzle so that when it is placed on the nozzle the pin 6 is aligned for insertion into the nozzle. The pin 6 is rigidly fixed to a rod 5 extending from an outer casing 1 and the housing 7 is reciprocable with respect to the pin 6 and the casing 1 against a compression spring 10. The exposed end of the housing 7 may be of frusto-conical or concave dished form as shown at 12, 13 respectively. The casing 1 may carry a pocket clip.
Patent GB-490300-A (GB)
Title: A new or improved manually operated electric switch
IPC: H01H25/06
Filed: 1937-02-16
Abstract: 490,300. Push and - - turn switches. HARLEY, F. B. Feb. 16, 1937, No. 4651. [Class 38 (v)] In a push-and-turn switch, the push removes a cross-pin from a locking recess, and in the turning movement a contact Sweeps over stationary blade contacts with holding recesses. A cylindrical operating member 12 is journalled in the base 2 of an insulating casing 1 fitted with a cover-plate 3. In the open position of the switch, a pin 17 which passes through the operating member 12 is held located in a recess 18 in the base 2 by the pressure of a spring 15. To close the switch, depression on a head 13 of the rod 12 moves it longitudinally, until the pin 17 becoming disengaged from the recess 18 is free to be rotated with the operating member 12, and to engage in depressions 4<1>, 5<1>, in the contact plates 4, 5 to which leads are connected by the connection sockets 8, 9. If desired angular spring retraction of the operating member is arranged by fixing to it one end of the spring 15 which is anchored at the other end to cover-plate 3, while in another modification, more than two contact plates may be employed to form a multiway switch.
Patent GB-923699-A (GB)
Title: Hair styling appliance
Inventor: FEARNLEY RENEE
IPC: A45D24/36
Filed: 1961-02-08
Abstract: 923,699. Hair-waving appliances. RENEE PEZARO ORGANIZATION Ltd. April 19, 1961 [Feb. 8, 1961], No. 4709/61. Class 131. A hairnet or cap made of plastic, paper or cotton, or nylon gauze, has a chart impressed or printed on it for use in checking the position of curlers on which hair has been wound so that a particular style of hairdressing is maintained. The cap is made in three parts, a central part 2 and two sidepieces 5, the adjacent edges of the parts being joined by adhesive, sewing or welding. The sidepiece has a pleat 6 to improve fit, and a guide 7 which is orientated to lie over the ear, and the side edges of the central part may be pinked to assist bending of these edges to fit the corresponding edges of the sidepieces. The edge of the cap may be bound or elasticated or have a draw string. The device may be sold as a kit of parts for assembly by the user and may be made waterproof for use as a shower cap.
Patent GB-1197861-A (GB)
Title: Polymers Containing Sulphur and Phosphorus and Processes for Producing same
IPC: C08C19/24
Filed: 1969-01-29
Abstract: 1,197,861. Laminates. DOVERSTAND Ltd. 29 Jan., 1969 [30 Jan., 1968], No. 5002/69. Heading B5N. [Also in Divisions B1-B2 and C3] A laminate is prepared by coating a polyethylene terephthalate film with a toluene solution of a polyisoprene-diphenylphosphino-dithioic acid adduct and contacting the coated film with a sulphur-vulcanizable butadiene styrene rubber sheet. The laminate is then cured by heat.
Patent GB-1008266-A (GB)
Title: 3-substituted benzoxazine-(1,4)-one-(2) derivatives
IPC: C07F9/6533
Filed: 1963-02-07
Abstract: The invention comprises compounds of the general formula <FORM:1008266/C2/1> wherein R is a chlorine atom or a C1-C4 alkyl radical, n represents O or an integer of 1 to 4 and X represents an ammonium, cyclimmonium or phosphonium radical or a -SH, -O-CO-R1, -S-CO-R1, -O-CS-R1, -S-CS-R1, -S-CS-OR1, -NR211, -O-CO-NR211, -O-CS-NR211 or -S-CS-NR211, wherein R1 is an alkyl, aryl, aralkyl or cycloalkyl radical and R11 is a hydrogen atom or an alkyl, aryl, aralkyl or cycloalkyl radical or an aryl radical containing 1-3 chlorine atoms or NR211 represents a heterocyclic radical.  These 3-substituted benzoxazine-(1,4)-one-(2) derivative may be produced by reacting a 3-chloro-benzoxazine - (1,4) - one - (2) of the formula <FORM:1008266/C2/2> with ammonia, an amine, phosphine, hydrogen sulphide, or an alkali metal, alkaline earth metal or ammonium salt of a carboxylic, thiocarboxylic, xanthogenic, carbamic or thiocarbamic acid.  The reaction is expediently performed in an inert organic solvent or diluent at - 30 DEG  to + 200 DEG  C., preferably - 20 DEG  to + 60 DEG  C., and, when employing ammonia or an amine as reactant, an excess thereof may be used as an acid-binding agent. Benzoxazole-2-carboxylic acid amides, formed as by-products in the above reaction when ammonia or a strongly basic primary or secondary amine is employed, may be separated from the compounds of the invention by, for example, fractional crystallisation or preparative chromatography.  Some of said amides are described and claimed in Specification 1,008,267.ALSO:Herbicidal compositions contain one or more compounds of the general formula <FORM:1008266/A5-A6/1> wherein R is a chloric atom or a C1-C4 alkyl radical, n is 0 or an integer of 1 to 4 and X represents an ammonium, cyclimmonium or phosphonium radical or a -SH, -O-CO-R1, -S-CO-R1, -O-CS-R1, -S-CS-R1, -S-CS-OR1, -NR112, -OCONR112, -O-CS-NR112 or -S-CS-NR112 radical wherein R1 is an alkyl, aryl, aralkyl or cycloalkyl radical and R11 is a hydrogen atom or an alkyl, aryl, aralkyl, or cycloalkyl radical or an aryl radical containing 1 to 3 chlorine atoms or R112 may represent a heterocyclic radical, and a solid or liquid diluent or carrier.  The compositions may also contain, as active ingredients, known herbicides or benzoxazole-2-carboxylic acid amides of the formula <FORM:1008266/A5-A6/2> which amides may be formed as by-products in the preparation of the 3-substituted benzoxazine-(1,4)-one-(2) derivatives. Emulsifying and dispersing agents may also be present and the compositions may be applied as emulsifiable concentrates, spray powders, pastes, soluble powders, dusts and granulates.  Said formulations contain the benzoxazine-(1, 4)-ones in amounts between 0.1 and 95% by weight.  Specification 1,008,267 is referred to.
Patent GB-953046-A (GB)
Title: An improved athlete's hurdle
Inventor: LODGE GUY BRYAN
IPC: A63K3/04
Filed: 1963-02-07
Abstract: 953,046. Athletes' hurdles. LODGE (EQUIPMENT) Ltd. Feb. 7, 1963, No. 5053/63. Heading E1B. An athlete's hurdle comprises a flight rail 10 rigidly connected at respective ends to a pair of legs 13, 14 having elongate feet 20 hinged at the bottom ends thereto. The feet have interior hairpin springs with the ends extending slightly from holes 29 to engage holes 28 in the legs when the feet are in the down position. The feet 20 are provided with adjustable weights 22, 23, and the legs have telescopic ends for adjusting the height of the flight bar 10.
Patent GB-592932-A (GB)
Title: Improvements in systems for launching or towing objects such as aircraft
IPC: D07B1/02
Filed: 1944-03-17
Abstract: 592,932. Ropes. ALL AMERICAN AVIATION, Inc. March 17, 1944, No. 5056. Convention date, April 5, 1943. Drawings to Specification. [Class 109] [Also in Groups XXXII and XXXIII] A shock absorbing rope for use in towing aircraft has at least part of its length made of material such as nylon having a substantial elasticity as well as an ability to absorb part of the energy of elongation. Other materials stated to have this property are rubber hydrochloride, vinyl chloride and vinylidene chloride. The elasticity permits of a recoverable elongation of at least ten per cent from full load to no load, and the absorption of energy is not less than twenty per cent of the energy corresponding to full load in a loading time of one second and unloading time of one second. The rope may be tapered or may be in sections of varying diameter coupled together. Specification 574,741, [Group XXX], is referred to.
Patent GB-473754-A (GB)
Title: Improved propellent cartridge
IPC: F42B12/42
Filed: 1936-02-19
Abstract: 473,754. Cartridges. FEDERAL LABORATORIES. Feb. 19, 1936, No. 5069. Convention date, Dec. 11, 1935. [Class 9 (i)] A propellent cartridge specially intended for discharging a projectile 10 of the kind described in Specifications 473,805 and 473,819, comprises a tubular body 50, containing a detonator 52, a propellent charge 54, and a wad device leaving an axial passage between the propellent charge and the projectile. The wad device comprises a cardboard disc 56 formed with an axial hole sealed with cellulose tape 60, an axially perforated felt disc 62, and an axially perforated metal washer 66, which serves to transmit the propelling thrust to the projectile.
Patent GB-871715-A (GB)
Title: Arc furnace for melting reactive refractory metals
IPC: F27D11/08
Filed: 1956-08-17
Abstract: 871,715. Arc melting furnaces. FLETCHER. R. J. Nov. 15, 1957 [Aug. 17, 1956], No. 5095/56. Class 39(3). An arc furnace for obtaining reactive refractory metals in the molten state, e.g. titanium, zirconium, nickel &c. includes a vacuum chamber 1, a liquid cooled crucible or mould 3, and a non-consumable axially adjustable liquid-cooled electrode 12 through the bore of which a compound of the metal in a liquid, powdered or gaseous state is fed. The electrode consists of a hollow elongated cylinder, e.g. of copper, and has an annular tip 11 with a central passage 17 through which the metal compound is fed. A liquid cooling jacket 19 surrounds the electrode bore, and a reversible motor 10 drives rollers 14 which effect axial adjustment of the electrode. The tip 11 is of the same composition as the metal obtained, and the arc may be revolved about the tip axis by means of a rotating magnetic field. A filter of metal powder, or a porous sponge may be located in the electrode bore to assist in controlling the rate at which the metal compound flows through the tip. When the compound is in powder form it may be forced through the tip by a feed screw. The outlet 22 of the chamber 1 leads through a valve 24, Fig. 2, to a trap 25 for. the reception of reaction products which are continuously removed during the process, and the trap is connected through a valve 27 with a vacuum diffusion pump 28 which, in turn, is connected through a valve 29 with a rotary vacuum pump 30. Instead of maintaining a vacuum or low pressure in the chamber 1 during operation, an inert gas under pressure may be fed to it.