baber/WOPTO huggingface dataset:
Patent GB-824536-A (GB)
Title: Improvements in or relating to new phenthiazine derivatives and processes for their preparation
IPC: C07D279/28
Filed: 1958-01-24
Abstract: The invention comprises compounds of the general formula <FORM:0824536/IV (b)/1> and their acid addition and quaternary ammonium salts (wherein R is a hydrogen atom or an acyl group containing not more than four carbon atoms, R1 is a hydrogen atom or a methyl group, n is 2 or 3 and m is 1, 2 or 3, the individual groups (CnH2nO) being the same or different when m is 2 or 3), and the preparation thereof by (1) reacting a phenthiazine of the general formula <FORM:0824536/IV (b)/2> (wherein X is the acid residue of a reactive ester) with a piperazine derivative of the general formula <FORM:0824536/IV (b)/3> (2) reacting a phenthiazine of the general formula <FORM:0824536/IV (b)/4> with a reactive ester of the general formula .X-(CnH2nO)m-R; (3) when R is an acyl group, acylating the corresponding phenthiazine compound in which R is a hydrogen atom. Other general methods for preparing the compounds of the invention are described.
Patent GB-160055-A (GB)
Title: Improvements in devices to prevent rattling of windows and the like
IPC: E05F11/00
Filed: 1920-01-27
Abstract: 160,055. Hartridge, F. Jan. 27, 1920. Holders for sliding windows.-A. device to prevent rattling of window sashes &c. consists of a plate a secured to the lower sash &c. having upturned slotted parts e, f in which slides a spindle with rubber buffer i pressing against the top sash. Rack teeth j are preferably provided to engage the guide e and hold the spindle against the sash, a leaf spring g secured to or integral with the plate holding the rack against the guide. In a modification, the spindle has a rack on its under surface engaging with a rack on the base-plate by means of a leaf spring, one of the upright guides being slotted to permit disengagement.
Patent GB-102647-A (GB)
Title: Improvements in Projector Arc Lamps.
IPC: H05B31/00
Filed: 1916-02-22
Abstract: 102,647. Brockie, J., and Johnson & Phillips. Feb. 22, 1916. Arc lamps.-In a projection lamp, automatic mechanism regulates the arc and also rotates both electrodes alternately in opposite directions through equal angles, say 360 degrees or a little more. Handoperated means for the same purposes may also be provided. Electric connexion with each electrode may be made bv a flexible helical conductor 12, 'Fig. 4, or partly by such a conductor and partly by light rubbing contacts near the arc. As shown, the electrode 3 is coarsely threaded at its end to screw into the holder 2. A tube 1, guiding the holder and enclosing the conductor 12 and part of the electrode, is secured to the lamp frame by clamps 42, 43, which can readily be opened for removal of the tube. A spur-wheel 7 on the holder gears with a pinion 6, splined on a long shaft 5 and embraced by a carriage 8. This is fed by a screw 9 and extends between collars 11 on the holder. The tube 1 is slotted to accommodate the carriage and pinion. The electrodes, of which the negative may be below and at an angle of 135- 150 degrees with the positive, are arranged above a box 14, Fig. 6, containing the regulating- mechanism. Shafts driving the screws 9, Fig. 4, through worm gear 46, and other shafts driving the splined shafts 5 through skew or other gear 47, pass into the box 14. The two feed-shafts are driven by bevel-wheels 37, 39 on co-axial shafts 34, 33 provided with hand-wheels 35, 36, which can be coupled by a screw 48. A friction coupling 41 connects the inner shaft 34 to a shaft 23 driven by an electric motor 18 through reduction gear. Another shaft 25, similarly driven through a friction clutch 32, and provided with a handle 31, bears bevel-wheels 26, 27 toothed only over opposite halves of their perimeters. A bevelwheel on the transmission shaft driving the splined shaft 5, Fig. 4, of the positive electrode is thus rotated alternately in opposite directions. The transmission shaft for rotating the negative carbon is driven by bevel-gearing from the first transmission shaft. Near their burning ends, the electrodes may be cooled by water jackets 13, or, according to the Provisional Specification, by coiled narrow tubes, or by jets of alcoholic or other vapour.
Patent GB-171961-A (GB)
Title: Signalling arrangement for preventing accidents on electrically worked rail roads where the electric locomotive is attended by one single man
IPC: B61L3/18
Filed: 1921-01-20
Abstract: 171,961. Gr³nig, F. Nov. 25, 1920, [Convention date]. Track apparatus actuating signals on trains.- In a signalling system for electrically driven trains, two circuit-breakers are connected at the home and distant signals and are operated with the signals; a voltmeter on the train controls audible and visible signals and another signal is brought into operation if the circuit-breakers are open or if the driver is not alert. The arms 14 of the circuit-breakers are supported by the cross beams 3, 4 on the columns 11, 12 and they are connected to the linkwork which operates the distant signal 6 and the home signal 5. The levers 18 at the foot of each column are connected bv wire ropes 19, and the ends of a wire rope 28, which passes round the hand-wheel 26 of a locking-frame 27 are connected to the ends of a lever 25 as shown. The locomotive carries the apparatus shown in Fig. 4. The high tension voltmeter 32 and circuit-breaker 38 close their circuit when the line voltage disappears and cause the three red lamps 30 to glow and the bell 39 to ring to give indication to the driver. An electrically worked siren 43 is included in circuit with a contact hand 41 rotated by clockwork and periodically engaging a contact strip 42. The same circuit includes the switch 44 which can be opened by the driver to prevent the siren from sounding, and a hand switch 53 which when open, as it must be when the train is stopping, locks the annular disc 57 in its " line clear " position by means of the bolt 56. The disc 57 is on the spindle of the switch controlling the transformer which supplies power to the motor. With the train running, the switch 53 is closed and the disc 57 is free. The siren will therefore be sounded, as a signal to the train staff, unless the driver opens the switch 44 whenever the hand 41 is on the contact 42. If the signals are at stop the circuit-breakers 14 are open and the voltmeter 42 drops to zero. The lamps 30 will glow and the bell 39 will sound. If the train stops between the signals it cannot start again until the signals and circuit-breakers are operated and the lamps 30 will continue to glow until the circuit-breakers are closed, although the driver may stop the bell by means of the switch 37.
Patent GB-314556-A (GB)
Title: Improvements in automatic motion reversing mechanism
IPC: B60S1/18
Filed: 1928-01-30
Abstract: 314,556. Rooke, T., and Wildy, D. W. Jan. 30, 1928. Windows and the like, cleaning.-Means for producing uniform linear motion automatically reversed at the ends of its stroke is described as applied to driving the wiper 30, Fig. 1, of the wind-screen 10 of a vehicle from a windmill 18, or other motor. Disconnectible friction gearing 17, 16 drives one of a pair of sprockets 13 connected by a continuously-moving chain 14. The wiper 30 is supported at 28 on a carriage 12, which slides in guides 11 and in which a rotary drum 20, Fig. 3, is journaled. The drum 20 has a single finger 21 adapted to engage alternatively the upper and lower spans of chain 14, which constantly rubs against the smooth surface of the drum. Within carriage 12 is a plate 25, which has a limited relative sliding displacement and carries two stops 27, 27a adapted to be advanced alternatively into the way of a tooth 24 on a wheel 23 which turns with drum 20. In Fig. 3, the carriage 12 is drawn to the left by the upper span of the chain until plate 25 is arrested by a fixed stop 27<b>. Drum 20 moves on, and tooth 24 slips clear of stop 27. Drum 20 is turned by the chain until it is stopped by tooth 24 coming on top of stop 27<a> with finger 21 in full engagement with the lower span of the chain. Reversal at the other end is similar. The wiper 30, when operative is in an inclined position with the lower end lagging behind. To effect this the holder rod 28 is free to move in a slotted bridge 29a. In a modified form of reversing device shown in Fig. 4, the slider plate mechanism is omitted. The finger 21 upon the drums 20 projects through the chain 14 and scrapes along inside the guide 34, which is gapped at 38. When the finger 21 comes to gap 38, it slips round until, passing through the lower span, it stubs against the lower guide 35, whereupon the return stroke begins.
Patent GB-610512-A (GB)
Title: Improvements in roller appliances for loading or handling goods
IPC: B65G13/10
Filed: 1945-02-06
Abstract: 610,512. Roller conveyers. DAVIES, G. V. Feb. 6, 1945, No. 3009. [Classes 78 (i) and 78 (iv)] A conveyer device comprises a unit metal plate 1 with or without downwardly turned side flanges, rails or feet 5, a plurality of rollers or sets of rollers 3 mounted in and projecting from parallel slots 2 in the plate and spaced apart to give a foothold, with or without means 7 at either end of the plate for connecting the unit to a platform, vehicle or other unit. The unit may be a plate of inverted-channel shape and several units may be bolted side-by-side, or they may be bolted or hinged together lengthwise and side handles 6 may be fitted. A unit may form the tailboard of a lorry, or the door of a railway wagon, or may be carried by a hand truck. Spikes may be fitted to the underneath for use in soft ground.
Patent GB-625300-A (GB)
Title: Improvements in or relating to handles for electric suction cleaners
IPC: A47L9/32
Filed: 1947-01-31
Abstract: 625,300. Hand-tool handles. MORPHY-RICHARDS, Ltd., and RUTTER, F.G. Jan. 31, 1947, No. 3025. [Class 61(i)] [Also in Group XXVIII] An electric suction cleaner of the pivoted handle type comprises a tubular handle A yoke B with tubular arms and a tubular pivot pin D the ends of which are welded to bosses B<SP>1</SP> on the arms, the electric leads C which supply the motor being carried down through the handle, yoke arms and pivot pin and out at C<SP>1</SP> through an insulating bush D<SP>1</SP>. E, E<SP>1</SP> are parts of the handle latching device as described in Specification 624,894.
Patent GB-178414-A (GB)
Title: Improvements in variable speed gears
IPC: F16H3/08
Filed: 1922-02-02
Abstract: 178,414. Baird, J. April 11, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Variable-speed and reversing gearing comprises parallel driving and driven shafts 3, 4 carrying toothed, chain, or friction gear pairs which are rendered operative selectively by coupled pinclutch members 5, 6 sliding on both shafts. Of the gears 3<a>, 15, 17 upon the shaft 3, the one on the right, 3<a>, is secured to the shaft, the others being loose. The left-hand gear 4a is secured to the shaft 4 and the others 16, 14, are loose. These fixed gears serve to carry clutch pins 5<a>, 6<a> round with the shafts, these pins passing through holes in the gears and being secured to the discs 5, 6. The discs 5, 6 are coupled by levers and a link 9<a> so as to be moved together by a handlever 10. The ends of the pins 5a, 6<a> are set so as to bring in gear pairs in sequence with neutral intermediate positions as the discs 5, 6 move from end to end. The clutch pins may be medially supported by discs 23 secured to the shafts. For reversed driving, the gear 14 when clear of the pins 6a is connected to its shaft by a nested train 18, 19, 20 brought into action by sliding the central gear 20 into mesh. In a modification, a separate idler train is provided for reversing. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement in which the clutch pins are replaced by keys sliding in grooves in the shafts. This subject-matter does not appear in the Specification as accepted.
Patent GB-186572-A (GB)
Title: A process for the manufacture of butyric acid and other fatty acids with recovery ofthe gases of fermentation
IPC: C12P7/52
Filed: 1922-02-02
Abstract: Waste cellulosic materials such as wood waste are hydrolyzed to impure sugary worts, which, after purification, are subjected to symbiotic bacterial fermentation to produce fatty acids, mainly butyric acid.  The hydrolysis of the disintegrated wood waste is effected by means of dilute sulphuric acid and superheated steam; the acid liquors are then neutralized with lime or chalk, the sugar solution extracted from the product by exhaustion, and purified from gums, resins, mucilages &c. by adding excess of milk of lime, followed if necessary by passage of the decanted solution through animal charcoal.  The purified wood wort is then treated in a closed vessel with the ferments obtained by inoculating sugar solutions containing mineral salts with bacilli of the intestinal digestion of herbivora or contained in garden earth; by this means, all the reducible sugars of the wood wort are converted into acids, viz. butyric, acetic, propionic, valeric and caproic acids.  The fermented wort is concentrated to a syrup preferably in vacuo and treated in a still with sulphuric or hydrochloric acid or preferably sodium bisulphate to liberate the free organic acids which distil off and are fractionally separated.  The carbon dioxide of the fermentation is recovered by absorption in sodium carbonate, from which it is freed by boiling; the hydrogen also may be collected.ALSO:Waste cellulosic materials such as wood waste are hydrolyzed to impure sugary worts, which, after purification, are subjected to symbiotic bacterial fermentation to produce fatty acids, mainly butyric acid. The fermentation takes place in a closed vessel and the gases produced are sucked out by a fan, the carbon dioxide absorbed in a hot solution of sodium carbonate, freed by boiling the resulting sodium bicarbonate solution and then collected.
Patent GB-363206-A (GB)
Title: Improvements in or relating to tins, canisters and like metal containers
IPC: B65D25/20
Filed: 1931-02-02
Abstract: 363,206. Tins &c. ROBINSON, F. G., Canister Works, Southcoates Lane, Hull. Feb. 2, 1931, No. 3203. [Class 66.] A tin, canister, or like metal container is provided with a label holder which, as shown in Fig. 1, consists of a metal plate soldered to the tin and having three edges 4 turned over to form grooves for receiving the label 3, the fourth edge 5 or a tongue provided thereon being adapted to be subsequently turned over to retain the label in place. In the form shown in Fig. 3 the plate is formed with a window opening and has three edges 6 bent down and soldered to the tin, the fourth edge 5 or a tongue provided thereon serving as before for retaining the label in place.
Patent GB-813712-A (GB)
Title: Improvements in or relating to railway bogies
IPC: B25B13/10
Filed: 1957-01-30
Abstract: 813,712. Mounting roller bearings. BUDD CO. Jan. 30, 1957 [Jan. 30, 1956], No. 3231/57. Class 12 (1). [Also in Group XXXII] In a bogie for a railway vehicle (see Group XXXII), two rigid side frames 20 are connected at their ends to axles 23 by universal joints 22. Each universal joint, Fig. 11, comprises a layer of rubber 79 disposed between the side frames 20 and the outer race 80 of a doublethrust roller bearing.
Patent GB-636454-A (GB)
Title: Improvements relating to the regulation of alternators
IPC: H02P9/38
Filed: 1946-08-01
Abstract: 636,454. Automatic control systems. STONE & CO., Ltd., J., and CHAPMAN, E. E. Aug. 1, 1946, No. 3243. [Class 38 (iv)] In an arrangement for regulating alternators, having an electromagnetically actuated moving system, such as a carbon pile regulator, the regulator is inherently astatic and is influenced by currents proportional to the voltage and also the load current of the alternator which tend to produce a static voltage/load characteristic which characteristic is corrected to provide a constant voltage output at a given power factor by introducing a third current which is dependent upon the power factor of the load current. The characteristics of static and astatic regulators are discussed. The arrangement is especially applicable to systems of alternators connected in parallel. In Fig. 1, the main winding W of a carbon pile regulator is connected between two of the three lines A, B, C from the alternator through a rectifying bridge D1. A transformer T1 connected in line C applies an additional rectified current through bridge D2 to winding W, which is proportional to the load current. In order to avoid the resulting droop of the alternator load characteristic, an additional transformer T2 is used to supply a voltage which depends on the power factor, to the A.C. side of bridge D1. The variable resistors R1, R2 and R3 are adjusted to provide a constant voltage characteristic at a given power factor, and the arrangement is then such that a rising (or falling) characteristic is provided at other power factors by the action of the regulator. When applied to a number of alternators connected in parallel, the arrangement provides for the various power factors to be equal. Alternative arrangements in which bridge D2 is arranged to supply an additional coil for the regulator, or for both voltages to be obtained from one transformer are also described. In the case of single phase alternators, or two phase three-wire alternators, phase adjusting means may be provided in the transformer secondary circuit.
Patent GB-307825-A (GB)
Title: An improved device for abrading or polishing wood flooring or like surfaces
IPC: A47L11/08
Filed: 1929-01-31
Abstract: 307,825. Soc. de Paris et du Rhone. March 14, 1928, [Convention date]. Addition to 306,937. Wheels.-In a drum for abrading or polishing wood floors &c. the abrasive &c. discs employed in the parent Specification are replaced by abrasive &c. material 1 shaped into helicoidal form, the spirals being spaced by a metallic band 2. Two symmetrical abrasive portions may be provided having opposite pitches to avoid the tendency for lateral displacement of the drum.
Patent GB-1388120-A (GB)
Title: Electric machine having a stator and a rotor
IPC: H02K3/26
Filed: 1972-01-25
Abstract: 1388120 Electric machines having printed discordal rotor windings MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Jan 1972 [27 Jan 1971] 3514/72 Heading H2A An an electric machine having a stator and, mounted on a shaft 1 together with a commutator 2 consisting of a plurality of segments, a discordal rotor 3 comprising a plurality of elements each constituting one round of a wave winding and having the same printed circuit ion pattern, the elements 12, 12<SP>1</SP> are stacked one upon another with an interposed insulating film 11 between adjacent elements and mutually displaced circumferentially by an angle equal to that subtended by one commutated segment, the pattern on each side of any element consists of a plurality of spiral coils whose number p equalls that of the magnetic poles of the staor, and the coil pitches of p-1 coils on each side of any element are all the same whilst those of the remaining coil 4 is different so as to provide a concentrically asymmetrical winding pattern. To counteract the non-uniform mass distribution which results from this asymmetry, the rotor is stated to be balanced by broadening a portion 13 of the coil 4. The winding may be progressive or retrogressive.
Patent GB-602592-A (GB)
Title: Modified sweep circuit for cathode ray tubes
IPC: G01R13/32
Filed: 1945-02-12
Abstract: 602,592. Cathode-ray oscillographs, MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 12, 1945, No. 3522. Convention date, Sept. 10, 1943. [Class 37] [Also in Group XL (c)] An arrangement for expanding a short duration pulse for examination on a cathode-ray oscillograph, so that it may cover the entire screen width, comprises means for reshaping the pulse and applying the reshaped pulse to control the sweep circuit so as to give a forward trace of the same order of duration as the pulse. Pulses from the line L are applied to the triggershaping circuit comprising the valves V1, V2, which are cross-coupled by resistances RL1, RL2; Rd1, Rd2, RH1 and the condensers CH1, CH2. In the stable state the valve V1 is rendered non-concluctive by the biassing means - Ec, and the valve V2 is conductive. The application of a negative pulse to the cathode of the valve V1 causes it to become conductive, and the valve V2 non-conductive for period mainly determined by the condenser CH2 and resistance Rd2. The diode D provides a low resistance shunt path to the cathode resistance R when the valve V1 is conductive, rendering the operating period of the trigger circuit independent of the duration of the triggering pulse. Reshaped pulses from the anode of the valve V1 are applied over the condensers C4, C3 and resistance R3 to the grids of the valves V3, V4. The valves V3, V4 are conductive in the stable state, being biassed by the resistance R5 connected to the positive source +Eb, and become non-conductive for the duration of application of the negative reshaped pulses to their grids. When the valve V4 is non- conductive, the condenser C5 charges through a resistance R4, the sweep voltage so produced being applied over an amplifier AMP to one pair of the deflecting plates of the tube CRO. The rendering of the valve V3 non-conductive causes a positive pulse to be transferred from the anode circuit to the grid of the tube CRO, making visible the trace, which is normally suppressed by biassing potentials applied over the resistance R7. The pulse to be examined may be applied over a delay network TL to the second pair of deflecting plates of the tube CRO. The system may alternatively be oper. ated synchronously with a source of periodically recurring pulses, by provision of a sinusoidal source, a phase-shifter and a clipper amplifier (not shown) supplying sharp pulses to the line L. Specification 602,267, [Group XL (c)], is referred to.
Patent GB-305238-A (GB)
Title: Improvements in and relating to processes for producing plastic masses
IPC: C08B5/10
Filed: 1929-02-02
Abstract: 305,238. Compagnie Franþaise d'Exploitation des ProcÚdÚs Plinatus, (Assignees of Plinatus, W.). Feb. 2, 1928, [Convention date]. 'Plastic compositions containing cellulose esters. -Plastic masses are produced by mixing cellulose esters, for example, nitrocellulose or acetyl cellulose, of low viscosity constants with solid solvents or gelatinizing agents of high boiling point in the absence of volatile organic solvents. The cellulose ester is in a semi-moist state and the substances are worked together in roller apparatus or the like with application of heat. Cellulose esters of high or medium viscosity may be mixed with the esters of low viscosity either before, during or after gelatinization. In the case of nitrocellulose, the water content is preferably about 30 per cent, and in the case of acetyl cellulose from 10 per cent to 120 per cent. Suitable gelatinizing agents are diethyl phthalate, and high boiling point esters of polyhydric alcohols, for example tributyrin. Fillers and colouring matter may be incorporated. To measure the viscosity constants, 4 grms. of the ester are dissolved in 25 cc. of alcohol and 75 cc. nf ether, and the viscosity of this solution is determined by the time taken for an air bubble to rise in the tube of a Cochins viscosimeter. Solutions are regarded as having a low viscosity when the air bubble takes 75 secs. to rise. Specification 247,174 is referred to.