baber/WOPTO huggingface dataset:
Patent GB-689025-A (GB)
Title: Merocyanine dyes and methods of making them and photographic silver halide emulsions containing them
IPC: C09B23/10
Filed: 1951-12-24
Abstract: 2-Acetamino-5-thiazolone hydrobromide is prepared by adding phosphorus tribromide to a solution of acetylthiohydantoic acid in dioxane and diethyl ether.  2-Benzamino-5-thiazolone hydrobromide, 2 - n - butyramino - 5 - thiazolone hydrobromide, and the corresponding propionyl, isobutyryl, o-, m-, and p-toluyl derivatives are similarly prepared.  N-n-Butyrylthiohydantoic acid is prepared by refluxing together ethyl N-n-butyryldithiocarbamate, potassium hydroxide, glycine, water and ethanol.  Ethyl N-n-butyryldithiocarbamate is prepared by heating together ethyl dithiocarbamate and n-butyric anhydride.ALSO:Merocyanine dyes of the general formula <FORM:0689025/IV (c)/1> wherein R is alkyl or substituted alkyl, R1 is acyl, L is unsubstituted or substituted methine, n is 1 or 2, d is 1, 2, or 3, and Z represents the non-metallic atoms necessary to complete a heterocyclic radical having 5 or 6 atoms in the heterocyclic ring, are prepared by condensing an acid-addition salt of a 2-acylamido-5-thiazolone with a cyclammonium quaternary salt containing in a - or g -position an alkylmercapto, arylmercapto, b -arylaminovinyl, or d  - arylamino - 1 : 3 - butadienyl group. [2 - (1 - Etyylquinoline)] - [4 - (2 - acetamino - 5 - thiazolone)] - dimethinemerocyanine is prepared by refluxing together 2 - acetamino - 5 - thiazolone hydrobromide, 2 - b  - acetanilidovinylquinoline ethiodide, ethanol, and triethylamine. [4-(1-Ethylquinoline)] - [4 - (2 - acetamino - 5 - thiazolone)] - dimethinemerocyanine, [2 - (3 - ethylbenzoxazole)] - [4 - (2 - acetamino - 5 - thiazolone)] - dimethinemerocyanine, [2 - (3 - methylthiazolone)] - [4 - (2 - acetamino - 5 - thiazolone) - dimethinemerocyanine, [2 - (3 - ethylbenzthiazole)] - [4 - (2 - acetamino - 5 - thiazolone] - dimethinemerocyanine, [2 - (3 - etyllthiazoline)] - [4 - (2 - acetamino - 5 - thiazolone)] - dimethinemerocyanine, [2 - (3 - ethylbenzselenazole)] - [4 - (2 - acetamino - 5 - thiazolone] - dimethinemerocyanine, [2 - (3 - methylbenzthiazole)] - [4 - (2 - acetamino - 5 - thiazolone)]-merocyanine, [2 - (3 - ethylbenzoxazole)] - [4 - (2 - n - butyramino - 5 - thiazolone)] - tetramethinemerocyanine, [2 - (3 - ethylbenzoxazole)] - tetramethinemerocyanine, [2 - (3 - ethylbenzoxazole)] - [4 - (2 - benzamino - 5 - thiazolone)] - dimethinemerocyanine, [2 - (3 - methylthiazoline)] - [4 - (2 - benzamino - 5 - thiazolone)] - dimethinemerocyanine, [2 - (3 - ethylbenzoxazole)] - [4 - (2 - n - butyramino-5 - thiazolone)] - dimethinemerocyanine, and [2 - (3 - methylthiazoline] - [4 - (2 - butyramino - 5 - thiazolone)] - dimethinemerocyanine are similarly prepared.
Patent GB-533691-A (GB)
Title: Improvements in electric circuit interrupters
IPC: H01H29/30
Filed: 1939-11-15
Abstract: 533,691. Mercury switches. GENERAL MOTORS CORPORATION. Nov. 15, 1939, No. 30111. Convention date, Nov. 19, 1938. [Class 38 (v)] A device adapted to provide continuous interruption of a low voltage D.C. circuit comprises twc masses of mercury connected with each other through a narrow neck 8 so that when current flows through, the mercury in the neck vaporizes, breaks the circuit and then condenses to restart the cycle. To make the device operate at a smaller voltage, the mercury in the neck may receive additional heat either from an external heating coil, Fig. 2 (not shown), or by causing the current to enter the lower mercury chamber through an insulated conductor 28 of high resistance passing through the neck, Fig. 3.
Patent GB-917253-A (GB)
Title: Herbicidal compounds and compositions and process for preparing same
IPC: C07D295/06
Filed: 1961-08-21
Abstract: The invention comprises substituted dinitro anilines of the general formula:-  <FORM:0917253/IV (b)/1> wherein R is ethyl, n-propyl, n-butyl, or allyl; R1, R2, and R3 are methyl, ethyl, n-propyl, n-butyl, or allyl; or R and R1, or R2 and R3 may form with the nitrogen atom a piperidino or pyrrolidino radical; and R4 is halogen (fluorine, chlorine, or bromine), halo-alkyl, or alkyl of 1-4 carbon atoms.  Specified compounds of the above formula include N,N-di-n - propyl-4-trifluoromethyl-2.6-dinitro-aniline, N.N-di-n-propyl-2.6-dinitro-p-toluidine, N.N-diallyl-2.6-dinitro-aniline, 2.6-dinitro-1-piperidinobenzene, and 2.6 - dinitro-1-pyrrolidinobenzene.  These compounds may be obtained by reacting 2.6-dinitrochlorobenzene or a substituted 2.6 - dinitrochlorobenzene with a secondary amine in an inert solvent such as benzene or ethanol.  They may be used as herbicides.ALSO:Herbicidal compositions comprise as active ingredients substituted dinitro anilines of the general formula <FORM:0917253/VI/1> <FORM:0917253/VI/2> wherein R is ethyl, n-propyl, n-butyl or allyl; R1, R2 and R3 are methyl, ethyl, n-propyl, n-butyl, or allyl; or R and R1, or R2 and R3 may form with the nitrogen atom a piperidino or pyrrolidino radical; and R4 is halogen (fluorine, chlorine, or bromine), halo-alkyl, or alkyl of 1-4 carbon atoms. These compounds may be used as selective herbicides for killing germinating grasses in the presence of established grasses and most broad-leaf plants.  They may be applied in the form of sprays, or as granules, or upon carriers such as vermiculite or peat.  Preferred compounds of the above formul  are those with two n-propyl groups attached to the amino nitrogen e.g. N.N-di-n-propyl - 2.6 - dinitro - aniline, and N.N - di - n-propyl - 4 - trifluoromethyl - 2.6 - dinitro - aniline.
Patent GB-1456326-A (GB)
Title: Memory cells
IPC: G11C11/405
Filed: 1974-07-08
Abstract: 1456326 Transistor stores WESTERN ELECTRIC CO Inc 8 July 1974 [11 July 1973] 30121/74 Heading H3T A memory cell includes a read transistor 60 having its controlled path connected between storage means 70 and a read data line 21, a write transistor 50 having its controlled path connected between a write data line 22 and the storage means 70, and a single select line 10 connected in common to the control electrodes of both transistors 50 and 60, said write transistor 50 having a greater threshold voltage than the read transistor 60 to improve discrimination between read and write signals. In the " off " state a high level V OFF  signal is applied to line 10 to turn off both transistors 50 and 60 so that data line 20 is at an indeterminate state. To write, a write data signal V R  is applied on line 20 and a signal V W #V SS -V T60 -V T50  is applied on line 10, where V SS  is the voltage on line 30, V T60  is the threshold voltage of transistor 60, V T50  is the threshold voltage of transistor 50. These two signals turn on transistors 50, 60 and the data is applied to node 75. To read out the stored data, a read data signal is applied to line 10 turning on transistor 60, and the line 20 is precharged to a logical " 1 " state. If a " 0 " is stored, the level at node 75 holds transistor 70 off, and the line 20 remains at the " 1 " level. If a " 1 " is stored, this turns transistor 70 on, and the line 20 discharges through transistors 60, 70 to a " 0 " level. Readout is thus in an inverted form, and an inverter may be connected to line 21 to return it to the correct sense. In order to prevent transistor 50 from becoming conductive during readout the voltage on line 10 must be precisely controlled.
Patent GB-192791-A (GB)
Title: An improved process for the fixation of atmospheric nitrogen
IPC: C01C3/00
Filed: 1921-11-11
Abstract: Alkali cyanides are made by granulating a mixture such as equal weights of sodium carbonate, carbon, and iron oxide (or a mixture of iron oxide with one-tenth of its weight of nickel oxide) by the help of an emulsion of a sulphur-free oil which may be emulsified by means of sodium resinate, and heating the granules in a retort (preferably a vertical tube) in a current of nitrogen at 900-1050 DEG  C.  From time to time hydrogen is generated in contact with the granular charge by shutting off the nitrogen and introducing superheated steam a little above the cyaniding zone. The Provisional Specification describes a vertical retort of square, rectangular, or circular cross-section, having fixed gratings extending horizontally across it upon which movable gratings or plates and scrapers move either backwards and forwards or, in the circular form, rotating backwards and forwards on a shaft.
Patent GB-241852-A (GB)
Title: A process for joining together coated objects made of cement
IPC: B29C65/00
Filed: 1924-12-15
Abstract: 241,852. Ligonnet, E. Oct. 21, 1924, [Convention date]. Addition to 230,015. Moulding pipes and tubes.- The linings i of adjoining cylindrical or conical objects g, h, made according to the invention of the parent Specification, are joined by juxtaposing the ends of the linings, softening them by heat, and welding them together by compression and subsequently applying similar plastic material in the depressions k, l caused by these operations.. The joint may be strengthened by means of rings of metal or reinforced cement applied to the outside of the objects g, h.
Patent GB-1386268-A (GB)
Title: Electrical contact structure
IPC: H01L23/532
Filed: 1972-06-28
Abstract: 1386268 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 28 June 1972 [30 June 1971] 30201/72 Heading H1K A contact structure to a region 12 of a semiconductor body 10 comprises a layer 26 of an intermetallic compound of aluminium and copper, chromium or iron, and a second layer 28 of pure aluminium or the element of layer 26 in a solid solution of aluminium. The constituents of layer 26, which is preferably the compound Al2Cu, may be deposited separately and brought to equilibrium by heating, or deposited simultaneously in stoichiometric ratio. Layer 28 may include sufficient copper, in the above case, to bring the total copper content of the contact to 15% by weight, to counter electro-migration in the contact. The metal layers may be covered by a sputtered glass layer 18. In a further embodiment, the layer 26 may be heated, during the glassing step, to cause it to aggregate into spheroids situated at the surface of the semi-conductor body, the layer 28 contacting the body between the spheroids. The body may be of silicon, and have an oxide passivating layer 14.
Patent GB-533724-A (GB)
Title: Method of casting iron rolls
IPC: B22D19/16
Filed: 1939-11-16
Abstract: 533,724. Iron alloys. DANIELS, F. C. T. Nov. 16, 1939, No. 30211. Convention date, May 13. [Class 82 (i)] [Also in Group XXII] In making iron rolls having a hard body surface and a relatively soft and strong body ane necks, a vertical mould. having a central chill ring 1, is filled to a level slightly above thi: ring and, after a shell of iron has solidified in this ring. slowly introducing at the bottom of the moulc a different metal s( as to permeate the still molten meta and increase it strength. The iron first poured may contain, in addition to carbon, silicon and manganese, from 1.04 to 4.49 per cent. of nickel, 0.32 to 1.95 of chromium, and with the smaller percentages of chromium, 0.26 to 0.45 or molybdenum and should not tend to thicken rapidly in the mould. The iron poured in the second place may contain a larger percentage of silicon and manganese than that first poured and should take from 4 to 20 minutes to pour according to the size of the roll and the fluidity of the iron first poured. All the metal may be poured through a runner 5 and the sink head 4 should be so large that no metal overflows.
Patent GB-364677-A (GB)
Title: Improvements in or relating to rotary earth-boring apparatus
IPC: E21B21/00
Filed: 1930-10-09
Abstract: 364,677. Boring earth. MACDONALD, W. R., of Resonant Fast Drilling Corporation, Hamble, Southampton. Oct. 9, 1930, Nos. 30291/30 and 15185/31. [Class 85.] Apparatus for core-drilling in soft earth comprises an annular bit at the lower end of a sleeve which receives the core, or contains an inner sleeve which receives the core, and means for supplying air which is discharged close to the cutting edges of the bit and drives the bulk of the core material into the sleeve which is of relatively limited length. The upper end of the bore-hole may be closed and air supplied from outside to escape through the sleeve, or the air :flow may be induced by suction. In Figs. 1 and 2, a crown cutter 17 is threaded to a sleeve 3 containing an inner sleeve 15 which may be corrugated or helical internally, both sleeves being threaded to a nipple 4 threaded to a drive stem 1 through which air is supplied to pass between the sleeves and through passages 18 leading to the roots of the cutter teeth. Water may be sprayed into the air for lubrication. Plugs 19, with passages 28, allow escape of air from the inner sleeve; a plug may be removed for supply of compressed air to remove the core from the sleeve 15. An upper sleeve 2 is also threaded to the nipple to collect cuttings driven outwardly and has a toothed upper end 20 to remove obstructions. The cutter 17 may be replaced by a shot drill or by an auger 33, Fig. 4, with a trap 34. The drill is driven by a turntable 6 on a truck 7 from an engine on a second truck, and is raised by a winch 10 on a truck 12 attached to shear legs. Strainers 14 hold the trucks rigid. In Fig. 5, the drill is driven by an air engine 21 fixed in the bore-hole by rubberfaced jaws 24 expanded by compressed air supplied by a flexible air pipe 22 and retracted by a spring 26. The engine 21 may comprise a feathered reciprocating piston meshing with a helically grooved rod secured to the tool to rotate or oscillate the latter, and the exhaust forms the air supply to the tool.
Patent GB-1513519-A (GB)
Title: Carbon friction disc
IPC: F16D55/40
Filed: 1976-07-21
Abstract: 1513519 Brake discs BENDIX CORP 21 July 1976 [29 Sept 1975] 30369/76 Addition to 1475237 Heading F2E The sheaths 64 of the parent Specification are protected from abrasion by screens 80. The latter are formed from wire mesh bonded to the sheaths and graphite pins, not shown, extend through corner reinforcing plates 74 as well as the covers, sheaths and disc periphery. The sheath and its cover may be formed unitarily during the process of manufacture of the sheath under substantially the same conditions as described in the parent Specification. If the sheaths and covers are located on the inner disc periphery, plates 74 are omitted and a single centrally placed rivet is employed to secure each sheath to the disc (Figs. 10 and 11 not shown).
Patent GB-409362-A (GB)
Title: Improvements in or relating to waterproofing compositions and their application
IPC: D06M13/02
Filed: 1932-10-31
Abstract: 409,362. Waterproofing-compositions. DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Oct. 31, 1932, No. 30512. Convention date, Nov. 6, 1931. [Class 140.] A waterproofing composition for use on fabrics, paper, &c. comprises, as non-volatile ingredients, a cellulose derivative, a substantial proportion of a water-repellent wax, a non- volatile oil, and, if desired, a plasticizer, dissolved in a suitable solvent mixture, the weight of the oil being equal to or greater than that of the wax, and the combined weight of the oil and the wax being from 2 to 15 times the weight of the cellulose derivative. The total weight of non-volatile ingredients is preferably between 1 and 20 per cent of the total weight of the composition. The cellulose derivative is preferably cellulose nitrate, but cellulose acetate, benzyl or ethyl cellulose or other derivatives may be used. The wax may be Japan wax, hydrogenated sperm oil, ceresin, candelilla, Chinese insect, Bay berry or montan waxes, glyceryl stearate, or glycol stearate. The oil is preferably a non-volatile naphthene base oil such as Petrolatum, but other oils such as neatsfoot, olive, cottonseed, castor, boiled linseed, paraffin or heavy petroleum oils may be used. The plasticizer for the cellulose derivative is preferably a stearate such as butyl stearate or ethoxy ethyl stearate, but dibutyl or tricresyl phthalate may be used. The composition is preferably applied to the fabric or paper by immersion followed by pressure or centrifuging, at room temperature or a higher temperature. On account of the low non- volatile content of the composition, it penetrates easily into fabrics and coats the fibres without affecting the texture of the fabric. In examples, the composition contains : (1) Nitrocotton, high melting paraffin wax, petrolatum, butyl stearate, butyl acetate, ethyl acetate, gasoline, toluol and ethanol ; (2) Nitrocotton, Japan wax, petrolatum, toluol, ethyl acetate and butyl acetate.
Patent GB-603001-A (GB)
Title: Improvements in or relating to tyre pump barrels
IPC: F04B33/00
Filed: 1945-11-15
Abstract: 603,001. Spinning. STADIUM, Ltd., WISEMAN, S., and HEFFORD, C. G. Nov. 15, 1945, No. 30661. [Class 83 (iv)] [Also in Group XXVIII] A tyre pump barrel 1, Fig. 1 (see Group XXVIII) is closed by a tapped connection disc 3 seated against a resilient washer 4 in turn backed by an inwardly projecting bead 2 and the inturned end of the barrel which is spun over to the disc 3. In a modification, Fig. 2, the end of a reduced diameter extension of the disc 3 projecting through the spun-over end of the barrel 1 is riveted over the said end.
Patent GB-446509-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C27/46
Filed: 1934-10-25
Abstract: 446,509. Aircraft with rotary - wing systems. BILLING, N. P., Royal Court Chambers, Sloane Square, London. Oct. 25, 1934, Nos. 30670 and 34102. [Class 4] An aircraft comprises a bladed rotor having two or more radial blades, each of which is combined with a supplementary aerofol spaced outwardly from the axis of rotation and adjustable about a substantially vertical axis. As shown, the aircraft body houses a seat 21 and an engine unit 22 adjustable through screw gear 47 in an arcuate guide 46. Arms 23 extend laterally from the body to support rotors 24. Landing-wheels 27 are carried in fairings 28 and are supported in arms 25. Cruciform stabilizing-fins, to one pair of which a rudder is articulated are provided on the body. The arms 23 terminate in a cup 31 carrying pylons 33. A boss 36 having sockets 37 to receive the root of each rotor blade 24 rotates on anti-friction bearings 80, 81, 82 and is driven through a worm 40 and worm-wheel 39. The blade roots are mounted on pivots 51, 56 for horizontal and vertical movement, controlled by laminated springs 57, the pivots 56 being carried by members 55 free to turn in the sockets 37. The members 55 are provided with crank-arms 61 provided with rollers 62 which engage a sleeve 63. The sleeve is adjustable on the pylon 33 to vary the incidence of the rotor blades. A cam 68 is slidably mounted on the pylon and is engaged by a cam follower 73 to which is connected rods 78 having flexible portions 79. The rods pass through the rotor blades and are connected at their outer ends to cranks 91 which control feathering movement of the auxiliary surfaces 90 axial adjustment of the cam 68 causes to a greater or less degree feathering of the auxiliary surfaces. Upward or downward movement of the cam causes respectively rearward or forward motion of the craft. The cams 68 are adjusted by cables 69, Fig. 16, connected to a lever 100 movable about a pivot 101. The sleeves 64 are adjusted from a hand-wheel 102, Fig. 18 through bevel-wheels 114, 115, worm 118 and worm-wheel 119, lever 112 and an endless cable 65 connected to the sleeves. Two rotors may be superimposed. The fuselage may be provided with air inlets and outlets 105, 106 into passages connecting which, the exhaust of a radial cylinder power unit is delivered. The exhaust impinges on turbine vanes 107 to rotate a wheel and suck air into the inlet ports. The incidence of the two rotor blades may be adjusted differentially. According to the first Provisional Specification a rotor may be disposed at the rear of the aircraft and according to the second Provisional Specification, two superposed rotors may be driven in reverse directions and a free-wheel may be interposed in the rotor drive.
Patent GB-210877-A (GB)
Title: Improvements in and relating to printers' composing sticks
IPC: B41B1/26
Filed: 1922-11-09
Abstract: 210,877. Simpson, P. Nov. 9, 1922. Composing-sticks.-The edge of the baseplate a, Fig. 1, of a composing-stick, which is remote from the back flange m, is folded under the plate and is provided with notches c, Fig. 2, which are engaged by a toothed extension g, Fig. 3, on the head of a bolt e, which slides in the cross-member d of the knee or slide of the stick. The bolt is pressed by a spring h into engagement with the notches c, and can be released by pressure on the head f of the bolt. The knee or slide is held against the back flange m by a clamp n provided with a set-screw p.
Patent GB-1471677-A (GB)
Title: Collabpsible shelving
IPC: A47B31/04
Filed: 1974-07-11
Abstract: 1471677 Folding tables W ZARGES 11 July 1974 [12 July 1973] 30818/74 Heading A4H A folding trolley comprises two frame parts 1, 2 or 57, 58 pivoted together at 6 or 59, two table plates 5, 4 pivoted to one of the frame parts at 7, 10 and resting on stops such as 9, 12 on the other frame part, the plates 4, 5 having locking means such that the frame parts 1, 2 and 57, 58 cannot be collapsed until plate 5 has been pivoted upwardly. As shown, plate 5 is connected to frame part 2, 57 by articulated links 11, and pins 9 on frame part 1, may slide in a guide 8 on plate 4 or plate 4 may be connected to frame part 57 by articulated links 47. Pins 9 may be carried by links (15), Fig. 3 (not shown) pivoted on frame part 1. Further pivoted table plates may be provided (see Figs. 4, 5, 8, 9), (not shown). The plates 4, 5 may carry retaining frames 61, 61' that pivot therewith.
Patent GB-915088-A (GB)
Title: A device for securing a metal strap, wire or like flexible binder, around a container, box, package or the like
IPC: B65B13/06
Filed: 1960-09-07
Abstract: 915,088. Bundling-machines. VEREENIGDE METAALVERPAKKING MAATSCHAPPIJ N. V. Sept. 7, 1960 [Oct. 29, 1959], No. 30862/60. Class 94(1). A machine for binding articles 2 with metal wire or strap 5 and of the kind having a fixed guide track, has strap &c. retaining means 10 which is pivoted by the strap into a recess 9 in the side of the track to release the strap when tensioned. The means 10 consists of a plate having a scroll-shaped upstanding rim 11 and pivoted at an angle to the track on the bottom of the recess 9. It is biased into its active full line position by a spring 13, but is pulled down to the dotted position 11<SP>1</SP> by the tensioned strap. The device enables the strap to bridge the gap between halves 3, 4 of the track. A switch 14 is operated by the strap to stop the roller feed 6, 7.
Patent GB-1520277-A (GB)
Title: Apparatus for purifying liquids by flotation or settling
IPC: B01D21/24
Filed: 1975-07-24
Abstract: 1520277 Flotation and settling tanks VERBIESE SA 24 July 1975 [31 July 1974] 30921/75 Heading BID A settling or flotation tank has means for controlling the distribution of flow in the tank. The apparatus (Fig. 2) comprises a settling or flotation chamber defined on one side by a weir plate 9 which has on the chamber side of it a further plate 23 with apertures at different levels 20 and 21 communicating with the settling or flotation chamber, the flow through some apertures being separated from the flow through others by vertical plates 24 and 25. Baffle plates 32 to 35 optionally direct the flow approaching the apertures as required. In the tank of Fig. 4 there is provided shaped plates 32 and 26 between which extend transverse plates (not shown). One leg 28 of one U shaped partition acts as an outlet and the other leg is provided with aperture 31.