baber/WOPTO huggingface dataset:
Patent GB-335555-A (GB)
Title: Manufacture of insoluble azo-dyestuffs
IPC: C09B29/20
Filed: 1929-06-21
Abstract: 335,555. Groves, W. W., (I. G. Farbenindustrie Akt.-Ges.). June 21, 1929. Samples furnished. Azo dyes are made in substance or on a substratum (lakes) by coupling the diazo compound of an amine of the general formula : Aryl-NH-R1- X-R2NH2 where R, and R2 = aromatic nuclei substituted or not, and X = either a direct linkage or an -N=N- group or where -R1-X-R2- together stands for a condensed aromatic system with an arylide of 2: 3-oxynaphthoic acid. Using two molecular parts of nitrite nitrosodiazo compounds are obtained and the corresponding nitrosoazo dyestuffs may be treated with a reducing or saponifying agent to remove the nitroso group. In an example, the nitrosodiazo compound from 4-amino-4<1>-phenylaminodiphenyl is coupled with 2 : 3-oxynaphthoic acid-5<1>-chloro-2<1>-toluidide and the dyestuff reduced with an alkaline solution of sodium sulphite, sulphide or phenylhydrazine-msulphonate. Phenylaminobenzene azoaniline, is also specified as a diazo component and the 4<1>- chloro-2<1>-toluidide, 4<1>- or 5<1>-chloro-2<1>-anisidide, 2' : 5<1>-dimethoxy-1<1>-anilide, 2<1>-anisidide of 2 :3- oxynaphthoic acid as coupling components. Specifications 6379/12; and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to.
Patent GB-1142315-A (GB)
Title: Electrostatic printing machines
IPC: G03G15/16
Filed: 1966-05-02
Abstract: 1,142,315. Printing apparatus. G. RITZERFELD. 2 May, 1966 [26 May, 1965], No. 19156/66. Heading B6C. [Also in Divisions G2 and H5] A developed electrostatic image is fixed on copy material in the case of an electrophotographic apparatus Fig. 1 (not shown), or in apparatus using an electrostatic master, Fig. 2 (not shown), by a field generating device which has a frequency above 400 kc./s. and preferably greater than 1 x 10<SP>7</SP> c/s. In one embodiment, a developed image is transferred by a corona device 13, Fig. 3, to a web 12, and fixed by rod electrodes 17, 18 connected to a high frequency generator 19. In another embodiment, Fig. 5 (not shown), the transfer and fixing steps take place simultaneously by means of a bar electrode (24) connected to a direct voltage source (25) and a high frequency generator (19). A microwave radiation device 29, Fig. 7, having a high frequency radiator 30 has inner and outer conductors 31, 32 within a reflector 34 which forms a beam aperture 28. A metallic reflector 35 concentrates the beam over the width of web 12. The reflector (34), Fig. 8 (not shown), forms a counter electrode for producing a direct current potential to cause image transfer simultaneously with fixing. In modifications reflectors (36), Fig. 9 (not shown) and (45), Fig. 10 (not shown), of dielectric material are used, e.g., phenol or polyester resin with mica. An intermittent feed of web 12, Fig. 11, to reproduce selected lines is under the control of a switch 53 which controls the bias of valves 51, 52. In the position shown, the grid of valve 51 has no bias, thereby producing a voltage at resistor 54, such that a sufficient potential exists between cylinder 2 and roller 58 to prevent the transfer of powder to the web 12. A plate 57 which has a high positive voltage attracts negatively charged web 12 so that the web is held by the plate while the roller 58 rotates. Image transfer and web feeding is resumed when the switch 53 is moved to the left. A particular line may be printed under the control of cams (66, 67, 68), Fig. 12 (not shown), which rotates in synchronism with cylinder 2 to produce pivoting of a microwave radiator 91 and roller 56 towards the cylinder 2 to effect transference and fusing of the power image. Alternatively, an electromagnet (83), Fig. 13 (not shown), controls the pivotal movement of a feed roller 56 towards and away from cylinder 2.
Patent GB-306806-A (GB)
Title: Improvements relating to pneumatic tyres
IPC: B60C11/02
Filed: 1928-07-02
Abstract: 306,806. Jessen, J. B. H. Feb. 25, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Tread bands.-An independent continuous tread-band 2 of vulcanized rubber has undercut recesses 3, 4, Fig. 1, or beads 6, 7, Fig. 4, to retain it in position in the outer cover 1. Transverse ridges 5 may be provided to prevent creeping.
Patent GB-1140059-A (GB)
Title: Improvements in or relating to d.c. pulse signal transmitting circuit arrangement
IPC: G01N30/58
Filed: 1966-05-02
Abstract: 1,140,059. Transistor circuits. SIEMENS A.G. 2 May, 1966 [30 April, 1965],No. 19160/66. Heading H3T. A D.C. pulse transmitting circuit for singlewire transmission in which a complementary pair of output transistors Ts6, Ts7, each connected between one of two supply terminals (of battery TB) and a common output terminal a, are controlled by separate signals produced by a complementary pair of driver transistors Ts3, Ts4 in such a manner that the bases of the output transistors e.g. Ts6, Ts7 are alternately connected to a potential mid-way between those of the two said supply terminals, under the control of a common control signal applied to both driver transistor bases. As shown, the input at a, b determines the state of bi-stable circuit Ts1, Ts2, and hence either transistor Ts3 and transistors Ts5, Ts6, conduct, connecting the positive terminal of the battery to output terminal a, or transistor Ts4 and transistors Ts7, Ts8 conduct, connecting the negative terminal to output a. Any number of transistors, including a single transistor (Fig. 1, not shown) may be included in each of the chains Ts5-Ts6 and Ts7-Ts8. Diodes D3-D6 assist the blocking of their respective transistors when those transistors are non- conductive. Capacitor C prevents both chains Ts5-Ts6 and Ts7-Ts8 conducting simultaneously during switch-over. Diode D1 prevents, when transistors Ts5, Ts6 are blocked, a current flowing from +TB, through the emitter-base of Ts5, base-collector of Ts6. Diode D2 performs the complimentary function to diode D1. A fuse, cut-out lamp or automatic cut-out switch Si protects the circuit against over-current.
Patent GB-440434-A (GB)
Title: Process for the production of high-grade coke from practically non-coking coals
IPC: C10B55/02
Filed: 1934-06-28
Abstract: 440,434. Coke manufacture. FISHER, A., and BRASSERT & CO., Ltd., H. A., Brook House, Walbrook, London. June 28, 1934, No. 19162. [Classes 55 (i) and 55 (ii)] A hard coke having a porous " worm-hole " structure is obtained by coking a mixture of comminuted coal of low coking index and liquid hydrocarbons relatively high in asphaltic constituents in a relatively thin layer in a solefired horizontal oven. Coal of higher coking index may be incorporated with the mixture. A liquid hydrocarbon particularly suitable is a cracked petroleum residue having a gravity of 12‹ (A.P.I.), and usually equal parts of coal and liquid hydrocarbon are used, but this proportion may be varied. In an example, Aberdare coal having 13'9 per cent volatiles is ground so that 80 per cent passes a 200 mesh sieve, and is mixed with an equal amount of the petroleum residue, the suspension being preheated in a coil to about 100‹ C. and discharged through the top of a horizontal oven, the floor of which is heated by flues at a temperature of about 1360‹ C. A layer of coke is allowed to build up to from 6 to 12 inches thick, and is removed by a ram. In another example, 50 per cent of the Aberdare coal is mixed with 25 per cent of a coal of medium coking index and having 22À5 per cent volatiles, and 25 per cent of a coal of high coking index and having 28À9 per cent volatiles, and the mixture is blended with an equal weight of petroleum residue or heavy fuel oil.
Patent GB-264403-A (GB)
Title: Improvements in machines for spinning cored rope yarn
IPC: D02G3/36
Filed: 1926-08-03
Abstract: 264,403. Hirschm³ller, A. Aug. 3, 1926. Sliver conductors and guides.-A machine for spinning cored yarn comprises a delivery shaft c, two co-operating pressing rollers d, g supplying the core a, and the covering material respectively, and an arched plate h for supporting and guiding the materials whilst being united, the roller g being recessed transversely at i to permit the covering material to slip. The plate h is supported on a spring l and is formed with a guiding edge p while the upper half of the end o of the trumpet n is spring-pressed against the core sliver.
Patent GB-259699-A (GB)
Title: Improvements in loud speaking telephones
IPC: H04R13/02
Filed: 1925-07-28
Abstract: 259,699. Lissen, Ltd., and Richardson, R. P. July 28, 1925. Magnetic instruments. -A reed adapted to rest on the edge of a receiver casing, or upon a shoulder within it, and to be connected to a large diaphragm which vibrates as a whole, is formed with short arcuate portions 10 and a central armature portion 11 united by thin radial strips 12. The reed is connected to a large diaphragm by a stem 13. A loud speaker may be fitted at will with a magnetic diaphragm of ordinary form or with a large diaphragm vibrated by the reed.
Patent GB-333996-A (GB)
Title: Improvements in or relating to the control of plunger valves
IPC: F16K1/12
Filed: 1929-06-22
Abstract: 333,996. Blakeborough, R. A., and Klouman, F. A. June 22, 1929. Valves controlled by pilot or relay valves.- Relates to plunger valves of the type in which a plunger b works in a cylindrical valve body a<2> providing an annular waterway, movements of the plunger b being effected by varying the pressure inside the chamber c by means of a pilot valve d which controls an orifice b<1> in the nose of the plunger b. In order to permit of priming the downstream pipe line or a turbine casing, the valve is provided with an external by-pass m controlled by a valve k connecting the upstream pipe line with the chamber c and having an area smaller than that of the orifice b, which, in combination with a secondary bye-pass m' controlled by a valve k<1> affords a greater area of passage-way than the orifice b<1>. When the valve k is open and the valve k<1> closed, the piston valve b follows the movements of the pilot valve d. If, on the other hand, the valves k and k<1> are both opened, fluid enters the chamber c faster than it escapes through the orifice b<1> and hence the opening of the pilot valve d is not followed by the piston valve b, which remains closed, thus priming the downstream pipe line. The bye-pass m<1> may be separate from the bye-pass m and connected by separate pipes and passages to the main valve casing.
Patent GB-1452191-A (GB)
Title: Looms
IPC: D03D5/00
Filed: 1974-05-02
Abstract: 1452191 Knitted selvedges DONAS MACHINE CO Ltd 21 April 1975 [2 May 1974] 19280/ 74 Heading DIE In a needleloom a scalloped selvedge is formed by an additional yarn 9 fed from a guide G to a latch needle 8 and loops are formed around a pin 12 which can be moved in an elliptical path parallel to the fabric direction and also towards and away from the fabric edge so that said loops are of different lengths to produce the scalloped selvedge.
Patent GB-293357-A (GB)
Title: Improvements in means for cooling furnace grates
IPC: F23L1/02
Filed: 1928-07-03
Abstract: 293,357. Lomshakoff, A. S.., and Dmitrevsky, P. July 4, 1927, [Convention date] . Grates, cooling.-To ensure that those parts of furnace grates liable to be burnt away are effectively cooled by air at all loads on the furnace means are provided whereby additional air to that required for combustion is employed for cooling purposes. As shown in Fig. 1, air under pressure is supplied beneath the grate 1 from chambers 6 by way of passages 9 controlled by valves 10 and partitioned chambers 4 at the sides of the grate. Part of the air may be conducted from the ash-pit to the chamber 5 and through the passage 8 controlled by the valve 11 to the chamber 7 wherein the air is of less pressure than that in the chambers 6 but slightly greater than that under the grate. When the grate is working at low loads less air is passed to the grate for combustion and the additional air is admitted to the chamber 7 by opening the valve 11. The valves 10 and 11 are interconnected and the valves 10 may be adjusted independently. In a modification, the space beneath the grate is divided by vertical partitions into three compartments, air being supplied to the two outer compartments and led over the top of the partitions adjacent to the grate bars to the central compartment at low loads for cooling the bars.
Patent GB-1016292-A (GB)
Title: A yielding strut
Inventor: WHITFIELD EDWIN JOHN
IPC: E21D15/18
Filed: 1963-05-15
Abstract: 1,016,292. Pit props. STEWARTS and LLOYDS Ltd. Feb. 6, 1964 [May 15, 1963], No. 19326/63. Heading E1E. The inner member 1 of a yielding telescopic strut 1, 6 for mine roofs is supported by a tapered member 5 of wood, plastics or rubber which, as the strut yields, is forced through a flanged insert 2 removably mounted on the lower end of the member 1. When it has yielded fully the strut is dismantled and the insert 2 refitted with a new member 5. In a modification the deformable member 5 is replaced by a steel or like rod which is a friction fit in the insert 2.
Patent GB-1282248-A (GB)
Title: Electric scissors
IPC: B26B15/00
Filed: 1971-06-08
Abstract: 1282248 Power-operated scissors SINGER CO 8 June 1971 [1 July 1970] 19333/71 Heading B4B An electrically-operated scissors comprises a blade 78 connected to an electric motor 42, 44, 54 for actuation relative to a fixed blade 85, and means 86, 72 for permitting selective movement of the blade 78 relative to the blade 85 independently of the motor in order to effect a controlled snip. The blade 78 is connected to a rod 64 provided with an abutment 66 fixed to the rod and an abutment 70 urged against an end 56 of the motor armature 54 by a spring 72. The motor includes a pair of coils 42, 44 which when a switch 88, 90, 92, Fig. 1, is actuated causes the armature to vibrate and via the abutments 64, 70, the blade 78 to oscillate. The blade can be actuated independently of the motor by pushing the rod 64 downwardly against the action of the spring 72 by means of a knob 86. In modifications a single-coil motor together with a suitable spring may replace the two-coil motor shown and an extension spring may be used in place of the compression spring 72, only one abutment then being required.
Patent GB-968633-A (GB)
Title: Improvements relating to drying machines
Inventor: DAWSON HARRY
IPC: F26B3/08
Filed: 1962-05-21
Abstract: 968,633. Drying apparatus. PETRIE & McNAUGHT Ltd. Aug. 6, 1963 [May 21, 1962], No. 19408/62. Heading F4G. A fluidized bed drier comprises a casing 1 enclosing a vessel 2 having an air permeable bottom 3 for heated, fluidizing air or gas which is withdrawn from the vessel through a filter 4 by a fan 9, air inlet openings normally closed by valves 13, 14 being provided in the top of the casing between the filter and fan whereby suction on the filter can be reduced by opening the inlets and the material collected by the filter can be allowed to return to the vessel.
Patent GB-1534196-A (GB)
Title: Process for producing a pigment
IPC: C01G49/08
Filed: 1976-05-11
Abstract: 1534196 Black iron oxide pigment REDLAND ROOF TILES Ltd 10 May 1977 [11 May 1976] 19435/76 Heading C1A Black iron oxide pigment is made by adding an aqueous solution of an alkali metal hydroxide or ammonia to an aqueous solution of ferrous sulphate which is at a temperature of 64‹ C. or more, maintaining the temperature of the combined solutions above 64‹ C. until the pH is 8À5-10À0 and oxidizing the combined solutions to deposit iron oxide. The ferrous sulphate solution preferably has a starting temperature of 64-100‹ C. and a concentration of at least 35 g/l. The solution added thereto, which is preferably NaOH, is added with continuous stirring to prevent local pH variations and the rate of addition is preferably such that viscosity of the combined solution does not rise above 1000 centipoises. The solutions are suitably oxidized by bubbling air therethrough.
Patent GB-993084-A (GB)
Title: Vacuum bases
Inventor: RUBENSTEIN JOSEPH
IPC: B23Q1/28
Filed: 1963-05-16
Abstract: 993,084. Clamps. GENERAL SLICING MACHINE CO. Inc. May 16, 1963, No. 19450/63. Heading B4W. [Also in Division E2]  A suction device for attaching a kitchen appliance to a surface comprises a rubber pad 16 formed with ribs 20, 20<SP>1</SP> projecting from a central portion to the periphery and embodying a metal stiffener plate 19 attached to a lug 21 movable by means of a handle 22 relatively to a dished member 17. On raising the handle from the position shown in Fig. 2, the plate 19 moves upwardly and pad 16 is moved away from the support surface to create a vacuum. The opposite pairs of side walls 28 are convexly shaped with respect to each other.
Patent GB-903813-A (GB)
Title: Improvements in the molecular sieve separation of hydrocarbons
IPC: B01J20/34
Filed: 1959-06-08
Abstract: In the separation of hydrocarbons by selective adsorption on a molecular sieve at 200 DEG -500 DEG F. followed by desorption of adsorbed hydrocarbons, accumulated, non-desorbable, carbonaceous deposits are periodically removed by freeing the sieve of desorbable hydrocarbons and heating to 500 DEG -1,00 DEG F. in the presence of an oxygencontaining gas containing not more than 3% oxygen, 2% water and 0,7% sulphur dioxide.  In a preferred embodiment hydrocarbon is adsorbed on the sieve then desorption effected by purging with an inert gas at 600 DEG -700 DEG F., by vacuum at 600 DEG -700 DEG F., by displacement, e.g. with propylene at 250 DEG -300 DEG F., by heating, e.g. from 300 DEG  F. to 700 DEG  F. or preferably by heating with a circulating stream of desorbate or an inert gas to 600 DEG -700 DEG F. followed by purging and pressure reduction by attaching a condenser, e.g. to 50 to 400 mm. mercury absolute.  The sieve is then cooled, e.g. by circulating unadsorbed effluent from the adsorption step and adsorption recommenced.  Before oxidative regeneration the sieve is purged by steaming at 600 DEG -700 DEG F. or with a heated inert gas.  The oxidizing gas causes a burning wave front to pass through the gas, the burning being initiated by (a) preheating the oxygen-containing gas, (b) adding a promoter such as nitrogen oxides, (c) adding promoters to the sieve, e.g. Cu, Mn, Cr, or Fe, by impregnation or in exchange.  Finally, heated air is passed through the sieve.
Patent GB-1111136-A (GB)
Title: Improvements in or relating to vibratory conveyors
Inventor: WHITE ROBERT CHARLES
IPC: B65G27/00
Filed: 1965-05-05
Abstract: The subject matter relating to Figs. 1-9 of this Specification is substantially the same as that described in the parent Specification but the claims are concerned with the perforate portions of the spiral track.  In Figs. 10, 11, a track plate 110 has drainage slots 120 produced by die cutting, the slots being below leading edges 116.
Patent GB-308131-A (GB)
Title: An improved process and mould for casting accumulator grids
IPC: B22D25/04
Filed: 1928-07-06
Abstract: 308,131. Petri, W. July 6, 1928. Galvanic-battery plates.-Accumulator grids, of the type having a frame d with thinner crossbars e, f provided at their intersections with pins g protruding to the plane of the frame surface, are cast in a two-part mould with the vertical rib spaces in one part of enlarged section producing full ribs l which provide easy access for the metal to the thinner parts of the grid. The parts m are afterwards removed mechanically as by a gang milling-cutter with spacing collars corresponding to the pins g.
Patent GB-473788-A (GB)
Title: Improvements relating to punching balls
IPC: A63B69/00
Filed: 1936-07-16
Abstract: 473,788. Punching- balls. BOSSINI, A., and GHERARDI, G. G. July 16, 1936, No. 19708. [Class 132 (i)] An inflatable punching- ball a has two elastic cords e secured to an eye b, each cord being provided at its free end with a handle g. Both handles are grasped by the user, the ball being then punched by either hand. A single rubber cord e may be looped and secured at its midlength to the eye b.
Patent GB-1502200-A (GB)
Title: Loom shuttles
IPC: D03J5/16
Filed: 1976-05-13
Abstract: 1502200 Shuttles LEDER & CO AG 13 May 1976 [17 May 1975 4 Feb 1976] 19730/76 Heading D1E A shuttle 1 has a bobbin clip 2 with spring loaded dogs 11 to grip the neck 8 of the bobbin and a spring loaded spigot 17 to engage and centre the end 7 of the bobbin.
Patent GB-144140-A (GB)
Title: Improvements in machines for cutting moving material into lengths
IPC: B23D25/00
Filed: 1919-08-12
Abstract: 144,140. O'Donnell, J. P., (Arnold, E. F., and Arnold, F. F., (trading as Arnold Machine Co.)). Aug. 12, 1919. Shearing; metal-sheet feeds.- Strip metal 3 is cut into lengths by transverse cutters 22, 23 on a slide 20 operated by a cam 26 so that it moves at the same speed as the strip 3 during the cutting, the blade 23 being reciprocated by a cam 30 and raised by springs when released by the cam. The cam 30 is preferably in the form of a ratchet-wheel, and is normally held in inoperative position, as shown, by a spring-actuated double-ended pawl, but is set to operate the blade 23 at given intervals by pins 35 on a chain 36 engaging teeth 33 on a star-wheel mounted on a shaft 32 carrying another star-wheel, the teeth 34 of which operate the cam-wheel 30 to shift it forward half a tooth. The knife 23 on its return movement engages the cam 30 and resets it in inoperative position. The strip 3 is fed to the cutters by rolls 5, and from them by rolls 6, 7. When the strip 3 is used up, a feeler 49, dropping into a recess 50, releases a lever 52 on a shaft 62 actuated by a spring 54 to slide the shaft 32 so that the teeth 33 are not engaged by the pins 35. To reset this stop-mechanism, a handlever 43 is moved into the position shown, thus setting the shaft 62 by the lever 66 acting on the lug 44, lifting the feeler 49 by a cam-shaped extension 67, 68, and also raising the upper feedroll 5 by a cam 74 and lever 59, so that a fresh strip may be inserted. The hand-lever 43 is then shifted to its working position to allow these parts to operate normally, a spring connexion allowing the shaft 32 to move into working position later than the other parts should one of the teeth 33 foul one of the pins 35 during resetting.
Patent GB-926745-A (GB)
Title: New anthraquinone dyestuffs and their manufacture and use
IPC: C09B62/06
Filed: 1961-06-01
Abstract: The invention comprises water-soluble dyes of the formula <FORM:0926745/IV(a)/1> where A is hydrogen or a sulphonic acid group, R is an unsubstituted or substituted naphthylene or phenylene group and Z is an unsubstituted or substituted alkoxy or phenoxy group, an amino group or the residue of an amine.  The dyes are made by condensing together a dye of the formula <FORM:0926745/IV(a)/2> cyanuric chloride and ammonia, a primary or secondary amine an alcohol or a phenol.  Examples are given.  The dyes, dye or print nitrogenous textile materials from a weakly acid, neutral or weakly alkaline bath in red-blue shades.
Patent GB-244675-A (GB)
Title: An improved window stay and fastener
IPC: E05C17/18
Filed: 1925-08-07
Abstract: 244,675. Eustege, T. P. Aug. 7,1925. Stays.-In order to secure the window in the closed position the stay-bar 1 is pivoted to a link 2 so that, when it is turned down, its end 6 projects above the link, as shown, and into the space between the end 16 and the face of the bracket E a tapered tongue 12 of a lever 10, pivoted to the bracket, is adapted to engage to draw the sash inwardly against the frame of the window. The link 2 is mounted in a pivot 4 carried by a bracket on the sash, and the staybar 1 has notches 14 which engage with the edge of a slot' 29 of the bracket 7 carried by the framing to secure the sash in any adjusted position when open. In a modification, the stay may be pivoted to an inner member provided with notches 14, and the lever secures the sash firmly in the open position by engaging in the recess between the projecting end of the outer stay-bar and the member 7, in addition to engaging behind the inner stay-bar to secure the sash in the closed position. In this construction, the lever has also a projecting piece engaging behind the slot 29. The notches 14 are formed at an angle, so that as the sash swings out radially the notches will be parallel with the edge of the bracket.