baber/WOPTO huggingface dataset:
Patent GB-818067-A (GB)
Title: Fuel controls for the afterburners of a turbine-type power plants
IPC: F02K3/10
Filed: 1955-11-30
Abstract: 818,067. Gas turbine plant. UNITED AIRCRAFT CORPORATION. Nov. 30, 1955 [Dec. 3, 1954], No. 34273/55. Class 110 (3). [Also in Group XXIX] The gas-turbine power plant 10, Fig. 1, embodies the compressor 12, combustion chamber 14 and an after burner 16 with means 18 actuated by a mechanism 20 for varying the area of the exhaust nozzle. A main fuel control 24 is provided which is responsive to air inlet temperature, compressor discharge pressure, and speed; pressurized fuel is obtained from a pump 32 discharging into lines 34, 36, the former line leading to the fuel control 24 where the fuel is metered before entering the combustion chamber 14 whilst line 36 supplies fuel to an afterburner control 50 which receives a compressor discharge pressure signal via a conduit 54 and has a drain line 58 opening into the pump inlet. A switch 56 is provided to turn the afterburner fuel control on or off. From the line 36 the fuel flows through a main metering orifice 68, Fig. 2, the area of which is varied by the contoured portion 70 of a valve stem 72, and an orifice 74 whose area is controlled by a valve 66 which maintains a predetermined pressure drop across the main orifice 68. The valve 66 includes a movable wall 78 subjected on the upper and lower sides, respectively, to fuel pressure on the upstream and downstream sides of the main orifice, the pressure differential being opposed by an adjustable spring 82 that enables the pressure drop across the main orifice 68 to be regulated. The stem 72 is urged in an opening direction by fuel pressure from the line 36, which force is opposed by a spring 88 in a chamber 92 and the pressure of inlet fuel admitted to the latter via a passage 90 in which there is a pressure drop ; outflow from the chamber 92 takes place by way of passages 96, 98 that lead to an opening, the area of which is determined by a valve 102 comprising a pivoted arm 106 to which two bellows 112, 114 are connected, the former being responsive to the compressor discharge pressure and the latter being evacuated. When a solenoid-actuated valve 120, at the junction of passages 96 and 98, is moved to the closed position, upon actuating switch 56, the after-burner fuel control is rendered inoperative since the pressure will rise in the chamber 92 until it moves the valve stem 72 to its extreme downward position in which the fuel is completely cut off by a lip 130 engaging a resilient seat 132. The lower end of the stem 72 is threaded and co-operates with a nut 142 embodying pins 144 engaging slots 146 in a U-shaped rotatable member 148 to enable the tension of a spring 150 to be varied, which spring loads the free end of the arm 106 and constitutes the means whereby motion of the stem 72 is fed back to the arm 106.
Patent GB-755710-A (GB)
Title: Decorative electric lamp fittings
IPC: F21S8/00
Filed: 1954-11-26
Abstract: 755,710. Electric lamp decorations. BRANCH, R. F. Nov. 26, 1954, No. 34281/54. Classes 75(2) and 75(4). [Also in Group XV] In an electric light assembly in which an electric bulb 18 is provided with a plug engaged in a socket 14 a pointed and centrally apertured star assembly 10 of translucent material is mounted by an aperture 32, provided with projections 38, on the bulb 18 between the zone of maximum diameter of the bulb 18 and the plug so that light rays will pass to the interior of pointed portions 24 of the star which are bevelled at 40, 42 for reflecting the light. A smaller translucent star 22 provided with points 44 bevelled at 56, 58 may be fitted into a complementary recess 60 in the front face of a larger star 20 and the stars 20, 22 may be of different colours. The smaller star 22 is held in position by a peg 62 engaging a hole 64 in the larger star 20. In an alternative arrangement, Fig. 4 (not shown) the smaller star is arranged to fit a recess in the rear face of the large star. In the arrangement shown in Fig. 5 the star has bevelled edges 240, 242 only forming the points 224 the rest of the star is cut away at 232 and the star is held in position on the bulb by pro. jections 238.
Patent GB-647745-A (GB)
Title: Improvements in or connected with mechanical or power-actuated hammers
IPC: B21J7/12
Filed: 1947-12-27
Abstract: 647,745. Power hammers. BLACKER FORGE & HAMMER CO., Ltd., and BLACKER, J. Dec. 27, 1947, No. 34314. [Class 83 (iv)] In a mechanical hammer in which the tup is located at the end of parallel arms pivoted in a bracket adapted to be traversed by a screw across the width of the machine frame and in which a treadle-controlled mechanism effects the blow-striking movements of. the hammer, the traversing screw is provided with locking means rendered operative or inoperative by the said treadle mechanism in order to avoid any creep of the tup-carrying bracket when the hammer is in operation, and comprising a toothed disc engageable by a pawl operably connected with the treadle-controlled mechanism. The traversing screw a extending between the side frames c of the machine may be driven in either direction by means of a double bevel pinion d, d<SP>1</SP>, slidable along an extension of the screw shaft to engage either pinion with a driven bevel gear (not shown). Keyed to the screw extension beyond the bevel gears is an indented disc e which may be locked by a pawl h<SP>1</SP> carried by an arm h pivotally mounted on a stud #<SP>1</SP>. One end of the arm is weighted and normally rests on a stud #, in which position the pawl is out of engagement with the disc e and the screw a is free to rotate. The other end of the arm is attached through a tension spring i to the treadle mechanism so that on depressing the treadle to start the hammer blows, the arm is moved about its pivot so that the pawl locks the disc e and the screw is held against rotation.
Patent GB-933877-A (GB)
Title: Triggering circuits for use with controlled rectifiers
Inventor: PAICE DEREK ALBERT
IPC: G05F1/44
Filed: 1960-10-11
Abstract: 933,877. Rectifying. ROTAX Ltd. Sept. 27, 1961 [Oct. 11, 1960], No. 34822/60. Class 38 (2). In order to control the point in the positive half cycle at which a semi-conductor controlled rectifier supplied with alternating current is fired a Zener diode is connected across the gatecathode circuit and is caused to be conductive normally during the non-conductive portion of the cycle and to break down in its reverse sense at desired instant in the positive half cycle to fire the rectifier. As shown a semi-conductor controlled rectifier 1 is supplied from an alternator 2 which also feeds a transformer 3 whose secondary winding 5 feeds a series circuit of saturable reactor 10, diode 9, resistor 8, resistor 7 and diode 6. A tapping on the transformer is connected through a Zener diode 12 to the junction of resistors 7 and 8 the diode 12 being connected across the cathode-gate circuit of the rectifier. During the negative half cycle no current flows through the secondary winding due to the presence of diodes 6 and 9, but a current flows through the diode 12 in the normal sense and through the resistor 7, due to the discharge of a previously charged capacitor 11, this current maintaining a negative potential on the gate. During the positive half cycle the reactor 10 is initially unsaturated and provides an effective high impedance. At the instant of saturation the potential at the junction of 7 and 8 rises causing the Zener diode to break down reversely and provide a positive gate potential to fire the rectifier. The saturation of the reactor 10 may be controlled by a winding 13 and a supply 14.
Patent GB-968590-A (GB)
Title: Process for the manufacture of very pure crystalline carbides, nitrides or borides
IPC: C01B21/06
Filed: 1960-10-06
Abstract: Very pure crystalline carbides, nitrides and borides of elements of Group III to VI of the Periodic System are obtained by subliming the compound from a carrier to a condensation element, in an inert gas atmosphere, and maintaining a definite fall in temperature of 1 DEG to 2000 DEG  C. from the carrier to the condensation element.  The inert gas atmosphere can be static or flowing and comprises one or more of the rare gases, hydrogen, carbon dioxide, carbon monoxide or nitrogen, and is at a pressure within the range of 0.01 to 100 atmospheres.  The carrier may be heated by the direct passage of an electric current, by high-frequency electricity, or by neutrons from a nuclear reaction.  The condensation element may also be heated by one of these methods, or it may be unheated, or cooled.  The inert gas or gases may contain an element and/or compound for doping the carbide nitride or boride.  These doping substances may be one or more halides, hydrides, carbonyls, carbides (other than that being purified) oxides and sulphides.  Alternatively, these may be present in the carrier or in the substance to be sublimed.  The carrier and condensation element may be graphite or the substance to be sublimed. In examples, boron nitride and silicon carbide are purified.
Patent GB-450807-A (GB)
Title: Improvements in or relating to spacers for twin detachable rims for vehicle wheels
IPC: B60B11/06
Filed: 1935-12-12
Abstract: 450,807. Vehicle wheels. FIRESTONE TYRE & RUBBER CO., Ltd., Great West Road, Brentford, Middlesex.-(Assignees of Brink, W. S.) Dec. 12, 1935, No. 34477. Convention date, Dec. 24, 1934. [Class 144 (ii)] A spacing-ring for effecting correct lateral spacing of a pair of side-by-side tyre rims 11, 12, comprises an annular metal band 13, having its marginal portions corrugated radially outwardly as shown in Fig. 2, such that its lateral edges engage the tyre rims at points approximately midway between the extremities of the corrugations.
Patent GB-926609-A (GB)
Title: Improvements in hinges
IPC: E05D11/10
Filed: 1961-09-27
Abstract: 926,609. Hinges. CHRYSLER CORPORATION. Sept. 27, 1961 [Oct. 6, 1960], No. 34635/61. Class 65 (2). A hinge, particularly for a motor vehicle door, comprises a pair of hinge members 14, 22, pivotally connected at 44, the member 22 being provided with a cam surface 26 which is engaged by a follower 66 on the end of an arm 62 integral with a torsion rod 54 the other end of which is anchored to the member 14. Preferably the follower 66 is a roller, the cam surface being formed with a number of shoulders 28, 30 which co-operate with the roller to hold the hinge in various open positions. Cooperating stops 34, 48 on the members limit the opening of the hinge.
Patent GB-819068-A (GB)
Title: Improved method and device for viewing light-sensitive photographic material
IPC: G03D17/00
Filed: 1955-12-02
Abstract: 819,068. Viewing or testing light sensitive photographic materials and apparatus therefor. HARRIS, E. S. I. March 4, 1957 [Dec. 2, 1955; Jan. 4 1956], Nos. 34645/55 and 335/56. Class 98(2) The material is illuminated with infrared light and an image in visible light is produced in a viewing agency on the receiving screen of an infra-red image converter tube disposed between the material and the viewing agency and the density of the material is tested by passing the light output from a densitometer operating with infra-red light on to the screen of the infra-red image converter tube and: comparing the visible output with a selected portion or portions of the material image. As shown, particularly in Fig. 2, radiation from filament lamp 17 collected by condenser lens 18 passes as a parallel beam successively through infra-red filter 19 and light-sensitive negative 13 accommodated in a slot of a holder or stand 12 for that purpose; the transmitted infrared beam reaches convex reversing lens 20 to form an inverted aerial image in plane 21, the rays from which are received by doublet objective 22 adapted to bring the infra-red image to erect focus in plane 23, where lies the infra-red converter tube indicated generally at 24. This latter has receiving window 25, the inner surface of which is treated as with silver caesium oxide to form infra-red sensitive receiving screen or cathode 26, and parallel therewith is transparent anode plate 27 coated with a fluorescent material such as zinc orthosilicate. A high D.C. voltage as of 6,000 volts is applied by wires 28, 29 between cathode and anode to cause electron discharge, which is increased wherever an infra-red beam strikes the receiving screen 26, to energize the fluorescent coating of anode plate 27 at the corresponding place and cause emission of visible green light for viewing as through convex lens 31 mounted in the upper end of barrel 11 with provision for focusing, user's eye being placed at 32. An infra-red screen 22a is placed between converter tube 24 and the doublet 22 to prevent the fluorescent light passing back to negative 13. For densitometer comparison lamp bulb 33 fed from battery 34, through variable resistor 35 operated by knob 15 which is used only for initial calibration, projects light through condenser lens 33a, regulating wire gauge 39 operated by pointer 16 of Fig. 1 (or through an adjustable optical wedge for the same purpose), and then through infra-red filter 38 and aperture 36 to provide pencil of rays 37 which strike inclined mirror 42 at image plane 21 to result in a small visible spot in the middle of the image from the negative appearing on anode plate 27; and the negative may be adjusted in position to bring the part where density is to be measured adjacent to the axis 41, pointer 16 may then be adjusted to make the intensity of the visible, central spot match that of the contiguous part of the negative image, the final position of the pointer 16 then indicating the density.
Patent GB-509289-A (GB)
Title: Improvements in plate-stack heat exchangers
IPC: F28D9/04
Filed: 1938-11-29
Abstract: 509,289. Plate heat - exchangers. AKTIEBOLAGET ROSENBLADS PATENTER. Nov. 29, 1938, No. 34697. Convention date, Nov. 30, 1937. [Class 64 (iii)] A plate heatexchanger comprises superposed discs formed with spiral &c. fluid grooves 2, 3 in the opposite faces thereof, the open sides of the grooves in each disc being closed by adjacent discs. The fluids may pass through their respective grooves in adjacent discs either in series or parallel, or even in series-parallel. Thus, one fluid entering the apparatus through the port 20 in the lower-cover plate passes in parallel through its grooves in the two lower discs, and thence in series through those in the two upper discs to the outlet port 22 in the upper cover plate. The other flows in countercurrent to the first fluid from a port 30 in the upper cover plate to an outlet port 33 in the lower one. In a modification, the plates are formed with rectilinear grooves, and the fluids flow through laterally displaced grooves in adjacent discs.
Patent GB-410883-A (GB)
Title: Improvements relating to the manufacture of mobile fuel from coal and oil
IPC: C10L1/32
Filed: 1932-12-08
Abstract: <PICT:0410883/III/1> Composite fuel without added stabilizer is made by passing a mixture of ground coal and oil through a mill comprising coacting rollers positively driven in opposite directions at different peripheral speeds, i.e. the peripheries at the line of coaction move in the same direction at different speeds.  The mixture may be passed through a series of pairs of rollers or repeatedly through the one pair, whereby part of the coal is reduced to a colloidal or quasi-colloidal state; coal and oil may be added to the fuel and passed through the mill therewith whereby the percentage of coal in the final product is increased.  Suitable coal is washed and dried to less than 2 per cent of water, conveyed to a mill A in which it is pulverized so that 80 per cent passes a 100 mesh per linear inch sieve, and then passed through one of the valves E to the corresponding mixer F containing oil. The mixture is then passed through a tube G or H to the superfine grinding mill I, through a comb mill J or other agitating device to break up any agglomerations, and through a pipe L to a storage tank.  In examples: (1) 60 lb. of ground bituminous coal is mixed with 40 lb. of fuel oil, and passed 40 times through pairs of rollers as above with agitation in a comb mill after the first pass.  The product is permanently stable, and may be used as a fuel for internal-combustion engines, it may be de-aerated, and may be thinned with less than 5 per cent of gas oil; (2) 40 lb. of the product of Ex. 1, 20 lb. of oil, and 40 lb. of coal are mixed and passed 8 times through the rollers; the addition of oil and coal and the superfine grinding are repeated until a product is obtained containing 27 per cent of oil and 73 per cent of coal, 13 per cent of coal being in colloidal or quasi-colloidal condition. According to the first Provisional Specification a solid stabilizer of M.P. not below 130 DEG  F. is used; according to the second Provisional Specification the stabilizer may or may not be used.
Patent GB-1062537-A (GB)
Title: Novel compound and herbicidal compositions
IPC: A01N37/22
Filed: 1965-08-13
Abstract: The invention relates to 31-chloro-41-methylcrotonanilide. The compound may be prepared by reacting the desired aniline with crotonic acid chloride or anhydride.ALSO:Herbicidal compositions comprises active ingredient a crotonanilide of the general formula: <FORM:1062537/A5-A6/1> wherein X is hydrogen or halogen and Y is hydrogen, halogen or alkyl having 1-7 carbon atoms and at least one of X and Y being halogen atom and a major amount of a solid or liquid innert carrier.  X and Y may also be F or I.  Specified active ingredients are: 3\sv-chloro-crotonanilide, 4\sv-chlorocrotonanilide, 3\sv,4\sv-dich-lorocrotonanilide, 3\sv-chloro-4\sv-methylcroton-anilide, 3\sv-bromocrotonanilide. Many solid and liquid carriers and emulsifying and dispering agents are specified.
Patent GB-1352447-A (GB)
Title: Rock boring machinery
IPC: E21D9/10
Filed: 1971-07-26
Abstract: 1352447 Rock-tunnelling or heading machines ANGLO - TRANSVAAL CONSOLIDATED INVESTMENT CO Ltd 26 July 1971 [31 July 1970] 34892/71 Heading E1 A rock-tunnelling or heading machine has a cutter head 6, which is mounted on a driven shaft 11 rotatably supported by the chassis 1 of the machine, and one or more cutting rotors 15, 26, the or each rotor being supported on the cutter head for rotation relative to the head about an axis 21 that is inclined a 80‹ or less to either the forward or rearward direction of the axis 16 of the shaft and pivotally carries rock-cutting hammers that swing freely between spaced stops on the rotor when the hammers are shattering rock from a face. Preferably one or a pair of oppositely disposed rotors are so mounted on the head that the axis of the rotor, or the axis of either or both rotors is offset from the axis of the shaft 11. The rotors, which may have different numbers of hammers mounted thereon, are driven by hydraulic motors that are mounted on the head and have a power supply passing through the shaft 11, which is driven by a further motor. Reaming rotors can be mounted on the head radially outwardly of and rearwardly of the or each cutting rotor. To the rear of the head a shield is positioned about the shaft 11, the shield having a flexible, peripheral rim engaging the wall of the excavation made by the head. A dust extractor is provided to draw off through the shield dust formed about the head. The chassis is supported in the excavation by driven wheels 2, 3 and the free running wheel 7 on a stabiliser boom. Rock is collected by rotor-mounted scoops 23 and fed to a conveyer 35.
Patent GB-835772-A (GB)
Title: Process for the production of metallizable monoazo dyestuffs of the benzene-azo-naphthalene series and metal-complex compounds thereof
IPC: C09B45/00
Filed: 1956-11-15
Abstract: Copper complex compounds of monoazo dyes of formula <FORM:0835772/IV(c)/1> wherein R1 is a benzene radial, R2 is a naphthalene radical and R3 is an aliphatic or aromatic radical and each of the radicals may be further substituted, and Z is the group -O-, -NH- or -NR4- wherein R4 is an organic radical, are prepared by treating in aqueous-alkaline medium a monoazo compound of formula <FORM:0835772/IV(c)/2> wherein R1 and R2 are as defined above, x is a halogen atom in ortho-position to the azo group, y is a hydroxyl or primary or secondary amino group in ortho-position to the azo group and at least one of the radicals R1 and R2 contains not less than one water-solubilizing group, preferably a carboxylic or sulphonic acid, alkylsulphonyl or sulphonamide group, with a sulphonamide of formula R3-SO2-NH2 wherein R3 is as defined above and a copper compound together with an organic compound capable of forming with it an alkali-soluble complex.  The copper compound acts both as a catalyst for the reaction and as a metallizing agent on the monoazo dye formed thereby.  The copper complex so obtained may be used as a dyestuff for wool, silk and polyamide fibres, or may be demetallized, or demetallized and subsequently converted into a chromiferous or cobaltiferous azo dyestuff.  The metallized dyestuffs dye nitrogenous fibres in grey shades.  In examples the monoazo dye 2-amino - 1 - chlorobenzene - 4 - sulphonamide --> 1 - acetylamino - 7 - naphthol is treated in aqueous sodium hydroxide with 4-methyl-benzene-1-sulphonamide, copper sulphate and glycerine to give the copper complex, which is demetallized with sodium sulphide and the chromium and cobalt complexes of the monoazo dye so obtained are prepared by treatment with chromium formate and formamide or alkaline cobaltous acetate.  Further examples specify the following additional reactants: monoazo dyes: 2-amino-1-chloro-4-methylsulfonylbenzene-->2-naphthol or 2-aminonaphthalene or 1-acetylamino-7-naphthol, 2-amino-1 - chlorobenzene - 4 - sulphonic acid--> 1 - naphthol-4-sulphonic acid or 2-naphthol, 2 : 5-dichloraniline-->2 - naphthol - 6 - sulphonic acid and 2-bromo-5-nitroaniline-->2-naphthol-6-sulphonic acid; sulphonamides: methane sulphonamide and 2-carboxybenzene-1-sulphonamide.
Patent GB-780414-A (GB)
Title: Improvements in or relating to the winding of thread
Inventor: SMITH FREDERICK ARTHUR
IPC: D01H1/40
Filed: 1954-12-03
Abstract: 780,414. Winding thread. BRITISH NYLON SPINNERS, Ltd. Dec. 1, 1955 [Dec. 3, 1954], No. 35006/54. Class 120(2) In a process for the winding of a thread co-incidently with the performance of another operation on it, that length of thread which is initially wound and on which the further operation may not have been fully performed is wound upon an auxiliary tube co-axial with a spindle which bears a main receiving tube for the thread, which auxliary tube is adapted to encompass and to be capable of being driven in company with the main tube provision being made for relative movement to take place between the main tube and the auxiliary tube, the thread being wound upon the main tube and traversed therealong by a traveller free to rotate about a ring mounted on a reciprocating ring rail. As shown, apparatus for carrying . out the above process comprises an auxiliary tube 15 which rests on the whorl 11 of the spindle 9 such that the upper portion of the auxiliary tube encompasses the lower end portion of the main yarn receiving tube 13. An auxiliary traverse mechanism 21 is provided to co-operate with the auxiliary tube and comprises a horizontal rocker shaft 23 having a series of arms each having a hook shape portion 25 at its free end. When a winding operation is to commence on a freshly inserted tube the first leading portion of yarn 19 is wound on the auxiliary tube 15 by the auxiliary traverse mechanism 21. After the non-processed yarn has been wound on the auxiliary tube 15. the winding proper starts on the main tube 13 by the traveller 7 on the ring 1 carried by ring rail 5 in the usual manner. In a second embodiment arrangements are made for the auxiliary tube 15 to be held initially within the ring.1 so that the first few windings are wound thereon. Subsequently the auxiliary ring is released from this position and the winding proper takes place on the main tube. The thread between the package and the auxiliary tube is cut so as to provide Sufficient length of "transfer tail. Specifications 543,466 and 780,417 are referred to.