baber/WOPTO huggingface dataset:
Patent GB-299343-A (GB)
Title: Improvements in the dyeing, printing or stencilling of materials made with or containing cellulose derivatives
IPC: D06P3/34
Filed: 1927-07-19
Abstract: 299,343. British Celanese, Ltd., Ellis, G. H., Olpin, H. C.. and Kirk. E. W. July 19, 1927. Divided on 298,993. Azo dyes.-Materials made of or containing organic substitution derivatives of cellulose are dyed, printed, or stencilled by the application of dyestuffs obtained from naphthylene diamines or their nuclear substitution products. Menoazo dyestuffs for this purpose may be obtained by coupling a diazo compound of the benzene or naphthalene series with a naphthylene diamine, or by coupling a diazotized naphthylene diamine or monoacidyl derivative thereof with a component, e.g. such component may be the same or a different naphthylene diamine. The use of monoazo dyestuffs obtained by coupling a diazotized aminonaphthoic acid with a naphthylene diamine or by coupling a diazotized naphthylene diamine with an aminonaphthoic acid is disclaimed. Disazo dyestuffs for the purpose may be obtained by coupling a tetrazotized diamine, e.g. benzidine, tolidine, dianisidine, diaminostilbene, or diaminodiphenylmethane, with two molecular proportions of a naphthylene diamine, or with one molecular proportion of a naphthylene diamine and another of a different naphthylene diamine or of another component. Secondiary disazo dyestuffs for the purpose may be obtained by coupling a diazotized amino-azo compound, e.g. aminoazobenzene or benzeneazo-naphthylamine or nuclear substitution products thereof, or 4 : 4<1>-diaminoazobenzene, or 4- aminobenzene-azo-4-aminonaphthalene. with a naphthylene diamine, or by coupling a diazo com- Found with a monoacidyl naphthylene diamine, rediazotizing, and coupling with the same of a different naphthylene diamine or another component. The dyestuffs containing a diazotizable amino group may be diazotized and developed on the fibre, and certain of the dyestuffs may be developed on the fibre with diazo compounds. The dyestuffs may be pretreated with solubilizing agents as described in Specifications 219,349, 224,925, 242,393, 242,711 269,960, 273,819, and 273,820. According to examples (1) celluloce acetate fabric is dyed oranged red by the dyestuff p-nitraniline # 1 : 5-naphthylenediamine solubilized with sodium sulphoricinoleate; (2) cellulose acetate fabric is dved red by the dyestuff 5-nitro-2-aminoanisol#monoacetyl-1:5 naphthylene diamine treated with the dispersing agent described in example A of Specification 242 ,:393.
Patent GB-351672-A (GB)
Title: Piloting apparatus operating with compressed air gyroscopes
IPC: G01C19/44
Filed: 1930-05-15
Abstract: 351,672. Gyroscopic apparatus. ETABLISSEMENTS AERA, 29, Avenue de la Grande Armee, Paris. May 15, 1930, No. 15013. Convention date, May 28, 1929. [Class 97 (iii).] Two or more compressed air driven gyroscopes, each indicating the movement of an aircraft about one of its principal axes, and an air compressor are enclosed in a case to form a single unit. In the form shown in Fig. 2, three gyroscopes driven by air jets F directed on to recesses in the rotors R are mounted in frames D pivoted to the casing E in such a manner as to indicate by the precession of the gyros against the damping action of springs or pneumatic shock absorbers, variations in the angle of incidence, variations in the transverse inclination, and changes in azimuth of the aircraft respectively. The air compressor G may be driven by an electric motor, a flexible cable from a motor driving the propellers, or by an airscrew. In a modification, one or more of the gyroscopes are adapted to indicate the angles of inclination instead of their variations. In this case, Fig. 4, the rotor R pivots on axes OÀO<1> in the gimbal D<1>, pivoted on axis H-H<1> in the gimbal D<2> which in turn pivots on axes X-X<1> in the fixed frame. Stops limit the displacement of the gimbals and prevent the rotor from escaping the air jets. The angle of incidence is indicated by the movement of a mark S on the ring D<2> relative to a part fixed to the frame whilst the transverse inclination may be indicated by the relative displacement of the rings D<1>, D<2>. Preferably separate gyros are used for indicating the angle of incidence and the transverse inclination angle. The gyros may have optical indicating devices such as mirrors mounted on the rotors or suspension rings.
Patent GB-1343497-A (GB)
Title: Electron beam tube modulation system
IPC: H05G1/02
Filed: 1971-05-14
Abstract: 1343497 Supply systems for electron beam tubes; protective arrangements MACHLETT LABORATORIES Inc 14 May 1971 [18 May 1970] 15049/71 Headings H2H and H2K [Also in Divisions H1 and H3-H5] A circuit responsive to an input pulse 28 to switch on an electron beam tube 34 comprises terminals C, J between which normally appears a first voltage but between which appears a second voltage during the application of the pulse, an interlock circuit 32 connected to the terminals and responsive to the pulse to detect a condition in which the second voltage is present and the input pulse is absent, and a switch 202 controlled by the interlock circuit to switch off the tube when the condition is detected. The tube 34 may be an X-ray tube or a travelling wave tube and a signal source 26 which supplies the pulse 28 includes an exposure control unit 140 which is manually adjustable to determine the width and frequency of pulses 142. Pulses 28 are derived from the pulses 142 by a system including a light source 150, a light conduit 152 and a gallium arsenide photo-detector 154, the system enabling isolation of the high voltages in the X-ray tube housing. A pulse circuit 71 includes a transistor 72 which supplies a pulse 96 to a transformer 122 and a transistor 74 which supplies a pulse 106 to a valve 68, thereby switching off the valve 68. Current therefore flows from a terminal V3 of a vattery 50 through resistors 58, 60, 62, 64 and a diode 66 to the respective terminal of the battery 50. A forward bias is thus applied between the grid and cathode of the tube 34 thereby switching on the electron beam. On termination of the pulse 106 the valve 68 is switched on thereby switching off the X-ray tube. A valve 70 is supplied by a pulse 124 derived by differentiation of the pulse 96, the pulse 124 switching on the valve 70 to sharpen the switch-on instant of the electron beam. The interlock circuit 32 comprises amplifiers 186, 188 which monitor the potentials across the resistors 60, 62, i.e. the grid-cathode bias potential for the tube 34 and the reverse current through the diode 66 since excessive reverse current through the diode 66 results in an increased potential across the resistor 62. The output voltages from the amplifiers are supplied to a logic circuit 190 which controls a light source 192. If the diode 66 is damaged by shorting due to an arc in the X-ray tube, the increased potential across the resistor 62 causes the output of the logic circuit 190 to extinguish the light source so that an amplifier 200 and a photo-detector 198 do not supply a signal to a logic circuit 201. The logic circuit 201 therefore operates the switch 202 which comprises a relay to disconnect the high voltage supply to the X- ray tube. Since the light source 192 is on when the X-ray tube is inoperative, the absence of light during the absence of a pulse 142 indicates a fault and causes the logic circuit 201 to operate the relay thereby disconnecting the high voltage supply to the X-ray tube.
Patent GB-1272174-A (GB)
Title: Castor assembly for a machine or instrument
Inventor: ORII SHO
IPC: B60B33/04
Filed: 1970-03-31
Abstract: 1,272,174. Elastomeric springs. S. ORII. 31 March, 1970 [21 June, 1969], No. 15077/70. Heading F2S. [Also in Division A4]  An on-off caster assembly, secured to a machine or instrument by a fastening nut 1, includes a wheel 6 rotatably mounted in a frame 5 and a rubber vibration damper 4 mounted in the frame and vertically movable by rotation of an adjustment bolt 21 to contact the floor and raise the wheel therefrom. The damper 4 fits within the frame 5 which is apertured to receive a spindle 14 on which the wheel 6 is rotatable, an adjustment nut 29 being secured to the damper and in threaded engagement with the bolt 21 and movable therealong by rotation of a handle 3, a gear segment 12 on the handle meshing with a pinion gear 22 secured to the bolt 21 and protruding through an aperture in a thrust coverplate 10 which is welded to the frame 5. The body of the damper has communicating recesses 26, 27 in which the bolt 21 and the wheel 6, respectively, are accommodated in positions displaced to opposite sides of the central axis 19 of the frame. The nut 1 has a threaded aperture for engagement with a bolt on a foot or bar of the machine &c. and is rotatable on balls 8, 9 relatively to the plate 10 and frame 5 to provide a swivelling arrangement whereby the machine moves in any direction in which it is pushed.
Patent GB-351673-A (GB)
Title: Improvements in or relating to tea-pots
IPC: A47G19/16
Filed: 1930-05-17
Abstract: 351,673. Teapots. ASHBERRY, G., 21, Bowling Green Street, Sheffield. May 17, 1930, No. 15179. [Class 129.] A stirring device for a teapot has a rod d passing through the lid and carries two perforated pins e, e<1>. The rod is capable of vertical and rotatory movement by the knob f. The lid b is secured by bayonet-joint lugs b<1>.
Patent GB-990308-A (GB)
Title: Improvements in hair curlers
Inventor: WILKES THOMAS WILLIAM
IPC: A45D2/24
Filed: 1963-04-18
Abstract: 990,308. Hair curlers. LAUGHTON & SONS Ltd. April 15, 1964 [April 18, 1963], No. 15249/63. Heading A4V. A hair curler comprises an open coil helical spring 4 and, around the spring, a reticulated sheath 5 of heat-shrinkable, tubular, extruded polypropylene net, the ends of the sheath being closed over the ends of the spring by locally heating the ends of the sheath to cause their material to contract. The spring is inserted by hand into the sheath, which projects at both ends, and the assembly placed on a toothed conveyer, with the ends of the sheath overhanging, and taken past heated metal plates 8 of gas or electrically heated furnaces 7. The surface temperature of the plates increases in the direction of movement of the conveyer and the net is plasticised just before it moves behind an asbestos mask 10. In contracting, the free ends of the net become interwoven and welded, to retain the coil.
Patent GB-413109-A (GB)
Title: Process for producing walls, roofs and floors
IPC: E04B2/84
Filed: 1933-05-26
Abstract: 413,109. Walls, roofs, and floors. WANGEMANN, P., 80, B³lowstrasse, Berlin. May 26, 1933, No. 15251. Convention date, June 11, 1932. [Class 20 (iv).] A method for producing walls, ceilings, floors, and roofs, consists in stretching simultaneously wire nettings 2, 3, Figs. 1 and 2, placed on opposite sides of a grooved upright or joist 7, securing the stretched nettings to the member 7, and covering the nettings with mortar or plaster so as to leave a space between the layers of mortar which may be filled with insulating material. The member 7 is grooved on opposite sides, and provided with a number of apertures 9 connecting the grooves 8. To stretch the nettings 2, 3, simultaneously, rods 11 are forced into the grooves 8 by means of a yoke-like stretching device operated by a screw 13, Figs. 4 and 5, and consisting of members 12 which pass either through the apertures 9, Fig. 5, or round the member 7, as in Fig. 4. Wire strips 14 serve to keep the rods 11 in position on removal of the stretching device. In a modification, Fig. 3, as applied to ceilings, the joist 7 is provided with extensions 7<1> to support boardings 10 or the like.
Patent GB-752077-A (GB)
Title: Improvements in or relating to apparatus for use in water purification treatment or like processes
IPC: C02F1/00
Filed: 1953-06-01
Abstract: 752,077. Purifying liquids. BRISTOW, A. W. April 13, 1954 [June 1, 1953], No. 15254/53. Class 46. Water, with chemicals added to precipitate dissolved matter and to coagulate suspended matter, enters, through pipes 22, Fig. 4, and 23, Figs. 4 and 5, the divergent chamber 25 of a mixing device 24. Further mixing occurs in four convergent chambers each constituted by a wall of a skirt 26 and adjacent portions of two intersecting strips 29 extending diagonally across the skirt and supporting a baffle plate 28. Still further mixing takes place in the lower end of a cell 18 constituted by an inverted square-based pyramidal cavity in a concrete block 13. Coagulation occurs here and the water flows upward, supporting the sludge blanket so formed, in a tank 11. Purified water flows away by troughs 36, Fig. 4, to filters (not shown) while the level of the sludge blanket is controlled by sludge draw-off pipes 34, Fig. 4. The two parts of the mixing device 24 are preferably square based pyramidal and it is then located with its sides parallel to those of its cell by extensions (through the corners of the skirt 26) of the strips 29. The baffle 28 is accordingly square with its sides parallel to the sides of the device 24. In a modification of the device the upper end is completely closed while the inlet pipe penetrates the baffle and discharges towards the upper end. The cells 18 preferably have parallel-sided upward extensions 17.
Patent GB-1127526-A (GB)
Title: Three-pole electric switches
IPC: H01H23/24
Filed: 1966-04-06
Abstract: 1,127,526. Tumbler switches; switch mountings. BASSANI, S.p.A. 6 April, 1966 [12 April, 1965], No. 15274/66. Heading H1N. In a three-pole electric switch actuated by a double-ended lever 2, Fig. 2, moving with snapaction, an arm 18 of the lever engages three pivoted contact carriers 21 with lost-motion. Each carrier 21 is urged by a spring 25 to engage a fixed contact 24 and comprises a resilient contact arm 20 and a rigid arm 23. In operation the arm 20, 23 are struck by the arm 18 for rapid operation but are out of contact with the arm 18 when at rest. A cover-plate 3, Fig. 1, retains the lever 2 in position and is clipped over lugs 5 on the casing. The plate 3 also has projecting tongues 6, 7 by which multiple switch assembles are secured to a supporting frame 8 at slots 10, 11. Projections 12 displaced by a suitable tool provide for the insertion and locking of tongues 6.
Patent GB-969309-A (GB)
Title: Improvements relating to the production and use of a new bis-phthaloyl-pyrrocoline dyestuff
IPC: C07D519/00
Filed: 1963-04-18
Abstract: In examples, the red pigment of the formula: <FORM:0969309/C3/1> is (3) milled with titanium dioxide, a solution of a modified urea-alkyd resin in xylene/butanol, turpentine oil and xylene to give a lacquer; and (4) milled with polyvinyl chloride, dioctyl phthalate and dibutyl tin dilaurate to give a red polyvinyl chloride.  Other resins which it is stated may be coloured with the novel dyestuffs are polyamides and phthalic acid-glycol polyesters.ALSO:The invention comprises a red dye of the formula <FORM:0969309/C4-C5/1> which is made by reacting one mole of 2 : 6-diaminopyridine with two moles of an acid halide of the formula <FORM:0969309/C4-C5/2> where Hal is chlorine or bromine.  The dye is a vat-dye for wool, silk and cotton and may be used as a pigment.  In an example (2) a red varnish is made by mixing together hydrate of alumina, linseed oil varnish, cobalt linoleate and the above pigment.
Patent GB-211398-A (GB)
Title: Improvements in and relating to electrodes for electron discharge devices
IPC: H01J19/28
Filed: 1923-06-12
Abstract: 211,398. British Thomson-Houston Co., Ltd., (General Electric Co.). June 12, 1923. Seamed joints. - An anode or other electrode consists of two similar members 1, 2, Fig. 3, of sheet metal each having edges 3, 4 lying adjacent to and parallel with the edges of the other member, the edges being clamped together by bending over an extension 5 of an edge of each member. Supporting rods 7, Fig. 1, may be clamped between the edges. Holes 10 may be punched through the edges and the punched out parts hammered over to provide additional clamping means.
Patent GB-102137-A (GB)
Title: An Improved Ferrule or Sleeve for Braided Wire Coverings Employed on Cables.
IPC: H01B7/22
Filed: 1915-11-12
Abstract: 102,137. Wilson, F. E., Shepherd, W. A., and Powell & Hanmer. Nov. 12, 1915. Cable sleeves.-The braided wire coverings d of cables are provided with an end ferrule or mount comprising inner and outer sleeve portions a, b forming an integral double sleeve arranged to fit the inside and outside of the braiding and to cap the end thereof. To facilitate the application of the ferrule, the outer sleeve portion is provided with slits. Specification 15986/15, [Class 38 (i), Electric couplings &c.], is referred to.
Patent GB-1279551-A (GB)
Title: Improvements relating to conveyors
Inventor: BOWD GORDON RONALD
IPC: B65G13/00
Filed: 1970-04-01
Abstract: 1279551 Roller conveyers SOVEX Ltd 19 April 1971 [1 April 1970] 15433/70 Heading B8A Articles, e.g. bundles of newspapers, may be directed along a path a, b or c of a T-junction of a roller conveyer by selectively raising in progression some or all of a series of rollers 4a, 4b, 4c, so that their rising appears as a wave or "ripple" which progresses with the article conveyed. Each roller 4 is pivotally supported by a belt-crank lever 14, 18 which is spring-urged so as normally to lower the roller to its brokenline position, Fig. 2. A pneumatic cylinder 8 may raise the roller through a slot 6 in a top-plate 7 (not shown in Fig. 1). Drive for all radially inner rollers 4b, 4c and non-raisable rollers 3b, 3c of the paths b, c is by a lay-shaft 48 chain-driven through a gear-box 44 which is motor-driven via a continuously adjustable expansible pulley 43. In a similar way the motor also drives at a higher speed a lay-shaft 49 for all radially outer rollers of the paths b, c. Drives are transmitted onward by chains 59, 60. Where chain drives would intersect each other additional systems (not shown) are arranged to avoid each other. In path a all rollers 3a, 4a are driven from one motor at the same speed. The rollers 4 have circumferential grooves to receive safety wires 38. Tyres are provided on all wheels. Control of the conveyer may comprise, for each path, an article-sensing switch which energizes a motor-driven cam-shaft having a cam for each raisable roller, the sequence of operation of the cams being such that the rollers are raised in progression and each article rides on a "ripple" of raised rollers in the required path. The path may be selected by information carried on an article or on analogue means. Alternatively the paths may be controlled by a manually operated switch. In place of the T-junction shown, junctions having up to four inlets/outlets may be used. The rollers 4 may be raised or lowered by hydraulic or electromagnetic means and they need not be driven if other article propulsion means is used.
Patent GB-683561-A (GB)
Title: Improvements in or relating to tobacco machines
Inventor: GRANSTEDT KARL ERIK
IPC: A24C1/02
Filed: 1950-06-20
Abstract: 683,561. Tobacco-feeding apparatus. ARENCO AKTIEBOLAG. June 20, 1950, No. 15436/50. Class 130. In a machine wherein the sizes of portions of tobacco delivered from a portioning device, e.g. a carded feed-roller 7 rotated by a ratchet-andpawl mechanism 16, 17, to a receiving device, e.g. a piston 3 slidable in a casing 1, are determined by the angle through which a rocking lever 10 is swung about a pivot 9 by a driving arm 11, and the distance between the pivot and a point 23 at which the lever is connected to the arm, which distance is adjustable in such a manner that the receiving device actuates a motiontransmitting lever 26 connected to the arm so that if the quantity of tobacco in the casing exceeds or falls below the average size the following portion or portions delivered by the roller are automatically diminished or enlarged in a corresponding degree the range of motion of the point is displaced relatively to the pivot by adjustably connecting, as by a link 30, the arm and the lever 26. The piston may be suspended from a yoke 47 supported on rods 48 and the lever 26 may carry a toothed segment 46 engageable by a pawl 39. As the rods are moved downwardly by a lever 50 the pawl is disengaged from the segment, the lever 26 under the influence of a spring 36 turns about the pivot 9, and an arm 25 engages a pivoted lever 61 which presses the piston downwards in the casing to compress together tobacco P and a supplied tobacco portion P'. When the yoke begins the return movement to an upper position the pawl re-engages with the segment and the arm 11 imparts an upward movement to the lever 10 to operate the carded roller so that a new portion of tobacco is introduced into the casing. Specifications 215,388, 230,788 and 234,044, [all in Class 130], are referred to.
Patent GB-1036795-A (GB)
Title: Circuit arrangement with indirectly heated thermistors for control purposes, particularly in the communications art
IPC: H01C7/04
Filed: 1963-04-19
Abstract: 1,036,795. Automatic gain control using thermistors; resistance networks; semiconductor circuits. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT. April 19, 1963 [April 21, 1962; Oct. 10, 1962; Oct. 16, 1962], No. 16533/63. Headings H3T, H3U and H4R. In a control circuit two or more indirectly heated thermistors are connected in cascade so that the resistance of the control thermistor varies in the same sense as the control current. Fig. 1 shows one embodiment in which a control current J1 flows through the heater Rh1 of a thermistor 1 the bead resistance of which is connected in parallel with the heater Rh2 of the control thermistor 2, a constant current Je being applied to the parallel combination of the bead resistance R1 and heater Rh2. More than two thermistors, e.g. four, may be connected in cascade to give effectively amplification of the control current, Figs. 2 and 3 (not shown). As applied to the automatic gain control of repeater amplifier V, Fig. 5, in accordance with the power supply current Jg, and hence the impedance of the line a-b, the heater of the first thermistor is connected in parallel with a resistor Rp in series with the power supply line a-b. A constant current to supply the parallel combination of the bead resistance of thermistor 1 and the heater resistance of thermistor 2 is derived from the voltage developed across Zener diode D which also stabilizes the voltage supply to the amplifier, the amplifier load being represented as Rv, the bead resistance of thermistor 2 being connected in the feedback circuit of the amplifier to control the gain. A method of selecting Zener diode D is also described in which the temperature coefficient of the breakdown voltage is selected to compensate the change in breakdown voltage with variation of line current due to temperature dependent resistance changes in the line. It is suggested that a number of Zener diodes, some forwardly biased, may be connected in series to adjust the characteristics to an optimum.
Patent GB-604117-A (GB)
Title: Improvements in radial pumps or hydraulic motors
IPC: F04B1/20
Filed: 1944-08-15
Abstract: 604,117. Radial and axial cylinder motors. VICKERS-ARMSTRONGS, Ltd., NAYLOR, J. C., and FIELDHOUSE, J. N. Aug. 15, 1944, Nos. 15559. 22610 and 25437. [Class 69 (ii)] [Also in Group XXVIII] Springs 16, Fig. 3, provide an initial loading for the valve 10 of an axial or radial revolving cylinder hydraulic motor which has a sealing, sliding connection with the ends of the inlet and outlet passages 22, 23 and with the cylinder face having inlet and outlet ports 7, the ports on the valve being enlarged on the outer side to enable the liquid to hold the valve in sealing relation with the cylinder block. Additional ports closed either by rams or by the face of the casing may assist the valve loading. The radial motor may have an eccentric driving ring 20, the eccentricity of which is adjustable by rams actuated by liquid against spring supports for the ring. The axial pump shown in Fig. 12 is actuated by a swash-plate connected to the pistons by spherical heads exposed through an axial bore 66 through the pistons to the pressure of the liquid. Pressure relief ports may be formed through the valves. The radial cylinder motor may have an elliptical driving ring. Specification 604,168 is referred to.