baber/WOPTO huggingface dataset:
Patent GB-981547-A (GB)
Title: Stable highly concentrated solutions of basic dyes
Inventor: FINKENAUER HELMUT
IPC: C09B11/02
Filed: 1963-03-26
Abstract: Concentrated solutions of basic dyes comprise a salt of a basic dye with a water-soluble carboxylic acid and an anhydrous or water-containing solvent miscible in all proportions with water and selected from polyhydric alcohols and esters and ethers thereof, polyethers, amides, lactones, nitriles, dimethyl sulphoxide, tetrahydrofuran and dioxan.  The dye solutions may be used to make non-drying inks by dilution with, e.g. ethylene glycol, for use in self-recording instruments, stamp-pads and typewriter ribbons. The dye solutions may contain excess, e.g. 1.5 to 2 times the stoichiometric equivalent, of water-soluble acid and may also contain water up to 50% by weight of the solvent. The solutions may contain 20-80% by weight of basic dye, the preferred dyes being from the diarylmethane, triarylmethane and diazapolymethine series.  Specified acids are fromic, acetic, propionic, maleic and lactic acids. Numerous solvents are specified the preferred ones being ethylene glycol, diethylene glycol monoethyl ether, propylene glycol, dipropylene glycol, formamide and dimethylformamide.  The preferred method of preparing the dye solutions comprises dissolving the carbinol base of the basic dye, which may still be water-wet, in a mixture of water-soluble acid and said solvent. Specifications 808,308 and 865,965 are referred to.ALSO:Concentrated solutions of basic dyes comprise a salt of a basic dye with a water-soluble carboxylic acid and an anhydrous or water-containing solvent miscible in all proportions with water and selected from polyhydric alcohols and esters and ethers thereof, polyethers, amides, lactones, nitriles, dimethyl sulphoxide, tetrahydrofuran and dioxan.  The dye solutions may be employed to dye paper, leather and textiles including polyacrylonitrile fibres.  The dye solutions may be used to make non-drying inks by dilution with, e.g. ethylene glycol, for use in self-recording instruments, stamp-pads and typewriter ribbons. The dye solutions may contain excess, e.g. 1.5 to 2 times the stoichiometric equivalent, of water-soluble acid and may also contain water up to 50% by weight of the solvent.  The solutions may contain 20-80% by weight of basic dye, the preferred dyes being from the diarylmethane, triarylemethane and diazapolymethine series. Specified acids are formic, acetic, propionic, maleic and lactic acids.  Numerous solvents are specified the preferred ones being ethylene glycol, diethylene glycol monoethyl ether, propylene glycol, dipropylene glycol, formamide and dimethylformamide.  The preferred method of preparing the dye solutions comprises dissolving the carbinol base of the basic dye, which may still be water-wet, in a mixture of water-soluble acid and said solvent.  Specifications 808,308 and 865,965 are referred to.
Patent GB-1146776-A (GB)
Title: Improvements in electrical control units
IPC: H05B39/06
Filed: 1967-08-28
Abstract: 1,146,776. Control systems for consumption apparatus. R. L. GODFREY. 27 Aug., 1968 [28 Aug., 1967], No. 11942/67. Heading H2H. A unit for controlling the current flowing in a load-such as an incandescent lamp 9-comprises a unitary structure having two manually operable switches 1, 2 and a bidirectionally conductive device 8 secured to a support 3, the interconnections between the components and to an alternating current supply being so arranged that closure of the switch 1 causes full energization of the load whereas closure of switch 2 causes partial energization only thereof, the amount of the partial energization being determined by the breakdown voltage of the device 8. The device 8 may be an element such as a DIAC or a TRIAC in which latter case the gate electrodes are not used. Alternatively a pair of back-to-back Zener diodes may be used.
Patent GB-421438-A (GB)
Title: Improvements in and relating to planetary reduction gearing for radial aeroplane engines
IPC: F16H1/46
Filed: 1934-04-20
Abstract: 421,438. Valve gear. COMPAGNIA NAZIONALE AERONAUTICA, 23, Via Sistina, Rome. April 20, 1934, No. 11984. Convention date, April 20, 1933. [Class 7 (vi)] [See also Group XXXIII] In an epicyclic reduction gear for use between a radial aeroplane engine and the propeller shaft, each planet wheel has a second coaxial ring of teeth which gears with a second internally or externally toothed wheel for actuating the valve mechanism. A crank shaft 15, Fig. 3, has a sun wheel 4 engaging planet wheels 6 on a carrier 7 mounted on the propeller shaft 8, the wheels 6 also engaging an internally toothed ring 5 fixed to the engine casing. Other pinions 9 mounted on the same shafts as the planet wheels 6 engage an internally or externally toothed ring 1 having bevel teeth 13 for driving radial shafts 10 for actuating the valve gear. Fig. 6 shows a modification in which the planet pinions have two sets of teeth 11, 12 respectively engaging the fixed ring 5 and sun pinion 4. The teeth 11 also drive a ring 2 geared to the radial shafts 10, or drive a cam ring for actuating radial pushrods.
Patent GB-761449-A (GB)
Title: Improvements in electric generating equipment
Inventor: ROSS WILLIAM SCRYMGEOUR
IPC: H02K7/18
Filed: 1954-04-26
Abstract: 761,449. Generating arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. April 26, 1955 [April 26, 1954], No. 12019/54. Class 38 (4). An alternating current generating system comprises an induction generator 1, 3 driven by a turbine or other prime-mover 5, the supply of working fluid to which is controlled by a main valve 7 by-passed by an auxiliary valve 16 which allows the supply of sufficient fluid to start the turbine and bring the generator up to and beyond " synchronous " speed. A tachometer generator 18, 19, also driven by the turbine, energizes, over trip contacts 29, the operating coil of a circuit-breaker 14, 21, the coil excitation reaching a value sufficient to actuate the circuit breaker (and thus connect the main generator to the load circuit) when synchronous speed is reached. The main machine now commences to generate and, over conductors 12, energizes the motor of an electro-hydraulic actuator 11 which opens the main valve 7 and so causes the generator to take on load. The initial opening of the auxiliary valve 16 may be effected by a solenoid 17 energized from a source 24 upon operation of a push-button 25. The circuit-breaker may be opened and the set shut down by operating a push-button 27 which energizes a solenoid 26 to open the trip contacts 29. These contacts may also be caused to open if the set races as, for instance, by arranging for the output of a second tachometer generator to be applied to the solenoid 26 over a rectifier 23 which isolates this generator from the source 24. Specifications 363,137 and 708,863, [both in Group XXIX], are referred to.
Patent GB-594252-A (GB)
Title: Improvements in furniture
IPC: A47B31/00
Filed: 1945-05-14
Abstract: 594,252. Collapsable tables. COMPACTOM, Ltd., and PINTO, E. H. May 14, 1945, No. 12045. [Class 52(iii)] A table or trolley comprises flaps hinged or linked to a central top part so that they may either rest on this part or be opened out to form an extension of it, the legs being formed as parts of a folding X-frame having vertical pivots. As shown, the flaps 2, 3 are hinged by short links to the edges of the central part 1 and have a rim 4 so that they form a tray in the folded position shown. Legs 5-8 form parts of a pair of vertical rectangular frames 9, 10 pivoted together and to the central part 1 at 14. The frames 9, 10 are held in the folded position shown against the action of a spring 25 by the engagement therewith of catches, 21, 22 formed on a bar 20 which is carried by a bar 17 pivoted to the top 1 at 16. With the end of the bar 17 in the lower position plates 18, 19 pivoted on the bar assume the position shown in Fig. 7 by reason of the engagement of slots 26, 28 in the plates with pins on the top 1. When the bar 17 is moved upwards to disengage the catches, 21, 22, the leg frames open out and the plates 18,19, then engage shoulders 30 on the flaps as shown in Fig. 13 thus preventing the flaps from being opened out until the legs have been opened by the spring 25. In a simpler form the spring 25 and the catch devices are dispensed with. The leg frames 9, 10 in this case may be held in the closed position by a removable tray attached by dowels to the lower horizontal members of the frames. The tray may have folding legs. The flaps may be coupled to the central part of the top by parallel linkage.
Patent GB-592415-A (GB)
Title: Improvements in or relating to frequency discriminator circuits
IPC: H03D3/10
Filed: 1944-06-24
Abstract: 592,415. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 24, 1944, No. 12059. Convention date, Oct. 29, 1942. [Class 40 (v)] A discriminator arrangement for a wide frequency deviation comprises a pair of tuned circuits, each including an inductance, a capacitance and a resistance, and a pair of rectifiers of which the one is connected across the inductance of the one circuit and the other across the capacitance of the other circuit. The tuned circuits comprising inductances 24, 30, capacitances 26, 32 and resistances 28, 34, respectively, derive energy by coupling to a primary circuit 18, 20 and are respectively connected to the anode 40 of the diode 36 and the cathode 42 of the diode 38. The cathode 44 of the diode 36 is connected by resistances 48, 49 to the anode 46 of the diode 38, audio signals being taken over condensers 54 to terminals 56. The join of the resistances 48, 49 is taken to ground through resistance 50 and the shunting condenser 52, the resistance 50 serving to compensate for any unbalance occurring at the input to the discriminator.
Patent GB-785479-A (GB)
Title: Improvements in or relating to teflon hermetic seal
IPC: H01B17/30
Filed: 1955-04-28
Abstract: 785,479. Stuffing-box substitutes. CONNECTICUT HARD RUBBER CO. April 28, 1955 [May 3, 1954], No. 12328/55. Class 122 (5). [Also in Group XXXVI] A hollow metal fitting 10, having an external flange 11 for attachment to a sealed housing and also inwardly-directed flanges 15 and 16, is sealed by a cylindrical body 17 of polytetrafluoroethylene, a gasket 25 made of a silicone rubber elastomer being also provided in the interior of the fitting. The cylinder 17 is first made of a diameter slightly greater than the inside diameter of the flanges 15, 16 and is drawn or extruded until its diameter is reduced to less than the inside diameter of the flanges and the fitting, with the cylinder 17 and gasket 25 inserted, is heated to between 400‹ and 600‹ F., which causes the cylinder to tend to revert towards its former shape and expand into sealing engagement with the flanges. One or more bores 18 may be provided for electrically-conducting rods 12 having clamping nuts 13, 14 and the bores, after heat treatment of the assembly, have smaller diameters than the rods so that the sealing effect is augmented by the rods causing expansion of the cylinders 17 into sealing engagement with the gaskets 25. The compressive effect of the clamping nuts also augments the sealing effect.
Patent GB-510102-A (GB)
Title: Improvements in and relating to compression struts for electrical apparatus
IPC: H01B17/20
Filed: 1938-04-25
Abstract: 510,102. Reactors; struts adapted to be jammed between opposed surfaces. BRITISH THOMSON-HOUSTON CO., Ltd., and ADAMS, W. S. April 25, 1938, No. 12356. [Class 38 (ii)] An adjustable strut for electrical apparatus, particularly for holding cast-in-concrete reactors in position in their cubicle, comprises an insulator 1 carrying an internally threaded socket 4 co-operating with an internally and externally threaded member 6 which carries a screwed stud 5 and is adapted to be rotated under the influence of a coiled spring 7 so as to urge the stud outwardly with respect to the insulator. The latter is normally prevented from rotating by a pin 3 projecting radially from a spherical end-piece 2 and engaging a groove in a bearing plate 15. The screwed stud 5, after being adjusted to engage its bearing plate 15, is prevented from rotating by reason of its chiselpointed end engaging a corresponding slot. Supporting pressure is then applied by rotating the housing 8 to which the outer end of the spring 7 is attached, thus rotating the member 6 in a direction to cause outward movement of the stud. Backward rotation of the housing is prevented by the wedging action of a ball 10, Fig. 3, between the housing and the fixed socket 4. The torsion of the spring, tending to cause further forward rotation of the member 6, ensures that the strut will follow up any subsequent movement of the parts to be supported. To ensure that a sufficient length of screwed stud is always available for this purpose after initial setting, the forward end of the housing carries a ball 13 which, by dropping into a slot 11 in the stud, prevents undue extension of the strut by rotation of the stud during initial setting.
Patent GB-224856-A (GB)
Title: Improvements in talking machines
IPC: H04R7/14
Filed: 1924-05-20
Abstract: 224,856. Lumiere, L. Nov. 16, 1923, [Convention date]. Reproducers, arranging and supporting; tool-arms and mountings. -Relates to sound-reproducing machines, particularly those of the kind having a large diaphragm in place of an ordinary sound-box and horn, and consists in special means for mounting the 'diaphragm so that it can occupy a vertical position when in use or be folded down substantiallv horizontallv and parallel to the turntable when out of action. In the machine shown in Figs. 1, 2, 4, and 6. the diaphragm d, which is formed of pleated paper, as described in Specification 11015/09, is held by one or a pair of rings r, mounted by radial arms c on a carrying arm p, the securing means comprising a knob b, Fig. 6, which allows the diaphragm to be rotated in its own plane, when required. The arm p is pivoted on an horizontal axis a at the end of a member e, rigidly mounted on a tube g which is capable of turning about a vertical rod f. This is secured to a plate h<1>. hinged to a second plate h which can slide on a guide k. A leaf spring m, attached to the arm p and, by means of a threaded rod and nut n, n<1>, to an arm q extending from the tube g, enables the pressure of the needle on the record to be regulated. When the machine is in use. the plate h<1> lies folded flat on the plate h, being held thus by a turnbutton &c. s. The diaphragm is then in the position shown in Figs. 1 and 2. It is brought to the folded position, Fig. 4, by first sliding the plates h, h<1> to the outer end of the guide k and then turning the plate h<1> up vertically. Alternative methods of mounting the diaphragm are shown in Figs. 8 and 10. Fig. 8 shows grooved rollers 2, provided on the end of the arm p, and engaging with an annular rail 1 on the central boss c<1>. In the modification shown in Fig. 10, the carrying arm p<1>. has three rollers 4<1>, 4 engaging with a rail 3 on the diaphragm ring. The star support is not shown in this Figure. A spiral compensating spring 5 is provided instead of the leaf spring and rod m, n shown in Fig. 1. Fig. 6 shows the means for transmitting the vibrations of the stylus to the diaphragm, which mechanism includes bell-crank levers v<1>, z mounted respectively on springs o, o<1> and connected by a rod y. This is preferably of wood, bamboo, or light metal such as magnesium.
Patent GB-780924-A (GB)
Title: Improvements in massage appliances
IPC: A61H7/00
Filed: 1956-04-24
Abstract: 780,924. Massage appliances. ORTHWINE, R. April 24, 1956, No. 12453/56. Class 81 (2). A frame for fixing over a table &c. has a longitudinally adjustable carriage carrying a transversely adjustable second carriage to which a motor-driven massaging element is attached by a pivotal mounting. The main frame has channelled side members 9 in which the wheels 11 of the first carriage run and the second carriage, comprising angled side members 19, 20 is slidable transversely on rods 15, 16,- carried by this and is adjustable by a screwed rod 25. A parallel link assembly 23, 24 maintains the motor mounting 21 vertical and the motor 34 is carried on this in an adjustable ball and socket mounting 36. The motor reciprocates a massage pad 48 which, after being suitably positioned, bears against the patient who lies on the base platform 38.
Patent GB-514108-A (GB)
Title: Improvements in high-speed spindles and their bearings
IPC: F16C35/10
Filed: 1938-04-27
Abstract: 514,108. Bearings. ATKINS, H. F. April 27, 1938, No. 12515. [Class 12 (i)] In a high speed spindle bearing, the spindle 1 and bearing member have numerous concentric ribs 3 with opposed inclined faces to take radial and end thrust, the ribs extending for a length at least equal to the spindle diameter. As shown, a grinding spindle is mounted in a pair of bearings 5, 6. Each bearing is in three sections, one of which is adjustable radially by the action of a spring 20 which acts on wedge pieces 18, 19 and on a bar 16. A ball 23 is arranged between the segment 12 and the bar 16. The curvature of the grooves and ribs of the bearing segments is less than that of the corresponding parts of the spindle. The bearings are housed in a carrier 8 bolted to a support 11. One of the bearings 5, 6 may be a plain bearing.
Patent GB-1261496-A (GB)
Title: Pulse generator
Inventor: PROUD JOSEPH M JR
IPC: H03K3/80
Filed: 1970-03-16
Abstract: 1,261,496. Cold-cathode tubes. IKOR Inc. 16 March, 1970, No. 12588/70. Heading H1D. A pulse generator comprises an elongated envelope 20 with an oxygen-containing filling at superatmospheric pressure enclosing axial conductors 28, 40, 34 providing a discharge gap 42 and a charge-storage section 40 immediately adjoining said gap, a resistive impedance 38 being coupled between the charge-storage section 40 and conductor 34. The envelope 20, which may be of copper or stainless steel or alternatively of glass or ceramic surrounded by an electrically conductive shield, has a sealable port 22 for introducing the filling, e.g. air at a pressure of 50 p.s.i. Conductors 28 and 34 are insulated from the envelope by bushings 30, 36 of glass or P.T.F.E. and the end faces of conductors 28 and 40 forming the gap 42 may be of tungsten. Charge-storage section 40 is supported by microwave energy absorbing material 44, e.g. an epoxy resinous filler, which may be slotted to allow uniform gas pressure distribution. Alternatively the material 44 may be omitted.
Patent GB-899116-A (GB)
Title: Improvements in or relating to ear ornaments
Inventor: OLDER EDWARD
IPC: A44C7/00
Filed: 1960-04-08
Abstract: 899,116. Ear rings. COROCRAFT Ltd. March 10, 1961 [April 8, 1960], No. 12628/60. Class 43 An ear ornament comprises an ornamental member 15 attached to a permanent magnet 18 which co-operates with a non-magnetized armature 19 to grip the ear. The member 15 may be attached to magnet 18 by magnetic force.
Patent GB-672456-A (GB)
Title: Circular saw for long pieces of timber
IPC: B27B25/00
Filed: 1950-05-20
Abstract: 672,456. Circular saws. JRION, W. May 20, 1950, No. 12681/50. Class 145 (ii). A saw for long lengths of timber, of the type comprising a motor driving a circular saw, and a work-carrying carriage which travels in a direction parallel to the saw blade, has the driving motor and saw mounted on a. carriage guided to travel parallel to, and in the opposite direction from, the work carriage. The motor f carrying circular saw g runs on rails d. The work carriage c moves on rails b and the two carriages are moved in opposite directions by an edless cable i' running round pulleys i, one run of which cable is secured to one carriage, the other to the other carriage. By this means the overall length of the sawing machine is reduced.
Patent GB-673270-A (GB)
Title: Retractable strake device for use on, or in connection with, vehicle wheels
IPC: B60C27/04
Filed: 1950-05-22
Abstract: 673,270. Vehicle wheels. COLLIN, L. May 22, 1950 [May 23, 1949; May 4, 1950], No. 12700/50. Class 144 (i). Retractable strakes 11 for tractor and like wheels fitted with pneumatic or solid rubber tyres 21 are pivoted on a circumferentiallymovable ring 5 and connected by links 14 to a fixed ring 1 on the wheel-rim. In the form shown in Figs. 1 and 2, the movable ring 5 is of channel-section and is adjustable on the fixed ring 1 by means of a screw 8 passing through a fork 6 on the ring 1 and threaded through a nut 8a pivoted on the ring 5. The strakes 11 are formed by angleirons connected at their outer ends by plates 12 which, as shown, are fitted with rubber shoes 23 secured by bolts 24. In the modification shown in Fig. 3, adjustment of the ring 5 is effected by the selective actuation of a pair of hydraulic cylinders 29a, 29b, the pistons 31a, 31b of which are pivoted to forks 34a, 34b on the ring, the cylinders being mounted for rocking movement on a fixed pivot 7. As shown in Fig. 7, the cylinders are fitted with sockets 35a, 35b having passages 36a, 36b leading to the cylinders 29a, 29b respectively, and enclosing spring-loaded valves 37a, 37b. In either adjusted position of the ring 5, the sockets are closed by screw-plugs. For actuating the ring 5, to move the strakes into or out of operative position, the closureplugs are removed and the sockets 35a, 35b of the appropriate cylinders are connected to pressure-supply and exhaust pipes 45, 50 respectively. Oil is then pumped from a tank 40 past valves 44, 47, 37a into the operative cylinder 29a and exhausted from the cylinder 29b past the valves 37b, 52 for return to the tank. In all forms, one ring 5 may be lccked in either position of adjustment by bolts 22.
Patent GB-276284-A (GB)
Title: Improvements in anti-dazzle devices for the head lamps of mechanically propelled vehicles
IPC: F21V11/00
Filed: 1927-05-12
Abstract: 276,284. Spencer, J. A. May 12, 1927. Gratings mounted on lantern fronts.-In an anti-dazzle device for a vehicle lamp, nuts N, with or without elastic washers P, are screwed upon screws J which pass through holes L in the lens or front. glass D and which are provided with saw-cuts for engaging the edge of a horizontal strip or plate F, a pin, cotter, or the like K passing through both the screw J and the plate P. The plate F has slots H adapted to form half-lap joints by means of corresponding slots formed in vertical plates E, which latter are connected in a similar manner to a plurality of horizontal plates located above and below the plate F. Instead of being horizontal the plates may be inclined, they may be arranged on the inside or outside of the front glass, their corners may be bevelled, they may be made of aluminium finished a dull black or other colour, and when they are fitted to a lamp the latter is preferably tilted slightly downwards.
Patent GB-1405066-A (GB)
Title: Handle locating means for twistlocks
IPC: B65D90/00
Filed: 1973-03-16
Abstract: 1405066 Twisflocks COUBRO & SCRUTTON (M & I) Ltd 4 March 1974 [16 March 1973] 12740/73 Heading E2B Means 10 for locating an arcuately-movable radial handle 8 of a twist-lock comprises an elongate body defining a slot aperture formed with seatings 12 which can receive the handle without deformation, the seatings reducing in width at a portion 13a, 13b thereof to be of lesser width than the handle such that at least one portion of the body, made of resilient deformable material tends to restrain movement of the handle from the seatings. The means are secured to the twist lock body 1 by screws and may be a one piece moulding of rubber-like material, or a synthetic resinous plastics material faced with rubber at the abutment area or carrying discrete portions of resiliently compressible material to constitute the abutment.  The twistlock comprises a shank 3 with chamfered T-heads 4, 6 which engage in similarly shaped openings in a fitting. The heads are angularly offset so that shank 3 must be rotated into two different positions through 85‹ to lock them.