baber/WOPTO huggingface dataset:
Patent GB-837558-A (GB)
Title: Fuel controls for gas turbine power plants
IPC: F02C9/16
Filed: 1956-08-10
Abstract: 837,558. Gas-turbine plant. UNITED AIRCRAFT CORPORATION. Aug. 10, 1956 [Aug. 17, 1955 (4)], No. 24542/56. Class 110 (3). [Also in Group XXIX] A fuel control for a gas-turbine power plant comprising a compressor, a combustion section, a first turbine for driving the compressor and a second turbine free from the first turbine, has fuel flow throttle 114 for the combustion section, second turbine speed responsive means 168 producing a first signal, manual speedselecting mechanism 86, 160 connected to the speed responsive means, compressor discharge pressure-responsive means, e.g. bellows 128, producing a second signal and means for combining the signals for controlling the throttle. Fuel supply at 60, connected to sump through a relief valve 64, passes the valve 114 the pressure drop across which is kept constant by pressure-regulating valve 80, a stop valve 84 linked to the manual lever 86 so as to close when the speed is set to zero, and the stop valve 96. The speed of the free turbine, driving main and tail helicopter rotors, actuates the centrifugal governor 168 and piston valve 172 having a follow-up connection 170, 188 with a piston 182 connected to the over-speed shut-off valve 96. state control, the speed being set from lever 86 and cam 160 acting as a fulcrum for lever 158 connected at one end to the piston 182 so that movement of the lever at its other end 154 is proportional to speed error and through lever 148, link 144 and crank 146 adjusts the connection 129 between the compressor discharge responsive lever 120 and a hinged leak-off control valve 110, 112 having a spring follow-up connection 132 with its controlled piston 104 actuating throttle 114. The speed of the compressor is utilized for regulating fuel flow during acceleration limiting. Centrifugal governor 198 responsive to compressor speed actuates hinged leak-off control valve 200, 206 having a spring follow-up connection with its controlled piston 210 for moving the cam 196 axially. Compressor inlet temperature through bellows 228, Fig. 3, actuates control valve 232 having a moving seat follow-up connection with piston 240 for rotating cam 196 by rack and pinion 244, 246. Cam 196 may adjust stator blades via 304 and positions a stop-rod 194 acting through lever 142, to prevent excessive movement of link 122 to the right to prevent excessive fuel supply and speeding during acceleration. For optimum power plant performance and safety, upward movement of cam 196 makes a cam 250 engage a lever 254 which, through lever 148, reduces fuel flow. If the compressor speed becomes dangerously low, cam 196 moves downwardly so that a cam 252 moves a rod 258 and through a lever 320 and rod 284, lowers the fulcrum 150 of lever 148 to gradually increase fuel flow. Should a shoulder 284<1> on rod 258 engage a lever 286, lever 148 is rotated to produce a sharp increase in fuel flow. Throttle 114 may be moved directly via manual rack 370 and pinion 371 in emergency. Specification 753,970 is referred to.
Patent GB-445239-A (GB)
Title: Improvements in and relating to articulated lorries to facilitate the handling of transferable load containers
IPC: B60P1/64
Filed: 1935-09-03
Abstract: 445,239. Handling removable load-containers ; ramps ; mounting pulley-sheaves. CRESCENT, A. P. R., 23, Rue Raynouard, Paris. Sept. 3, 1935, No. 24584. Convention date, Sept. 3, 1934. [Classes 78 (iii), 78 (iv), and 78 (v)] A two-wheeled trailer for dealing with removable load containers can be loaded or unloaded at the end or side while in a horizontal position, but can also be tipped about the rear axle for loading from the ground over one end. Fig. 1 shows the trailer yoked to the tractor for travelling, the load container A being mounted on the wheeled truck D which is secured by wedges at 49 and by having its wheels 11 rotated about vertical pivots so that they face in various directions. The container is fixed by lateral tensioned ropes 51 and by the tensioned winch rope 52. Fig. 12 shows the trailer positioned for supporting a load when unyoked from the tractor, the wheels being chocked at 41 and the weight distributed between the hydraulic jacks 1 and the adjustable screw-struts 2. Figs. 9 and 10 show the trailer lowered for loading a container A and truck D from the ground. By manipulating the jacks 1 the platform B is rotated about the wheel axis until the pivoted feet 4 rest on the ground. Ramps E in two relatively sliding parts are taken from the shelves 60, Fig. 1, adjusted, and positioned as shown at the lower end of the platform. The loaded truck is drawn on to the platform by manipulating the handoperated winch 6 at the rear of the platform, the guided cable 45 from which passes to a fixed point 46 round pulleys 44 temporarily secured to the draw-bar of the truck. Fig. 14 shows the apparatus as used for loading at the side from a railway wagon or from a quay. The ramps E are used to bridge the gap between the side of the trailer and the quay, the trailer meanwhile being supported as shown in Fig. 12. The pulley 44 in this case is attached to the end of the draw-bar 13 and the cable passes from the fixed point 9 round the pulleys 44, 30, 25 to the winch 5 at the front of the platform. The operations of unloading from the side are generally similar but the removable pulleys are attached to different points on the structures as may be found desirable. Mounting pulley sheaves. Fig. 22 shows one means for anchoring a pulley by mounting it on a threaded shaft 32<b> which hooks over a frame member or on to the colt rods 8, Fig. 14. A hand-operated nut 78 operates against the frame member 76 to clamp the shaft in position. The hydraulic jacks may be retracted by springs and centred by other springs. Ramps. Fig. 6 shows a ramp in two parts 17, 18 of which 18 carries a loop 20 passing round 17 so that it can slide relatively thereto. A short chain 21 fixed to the loop can be attached at any points to the tensioned chain 19, thus fixing the members in adjusted position.
Patent GB-743041-A (GB)
Title: Improvements in or relating to thermostatic electric switches
IPC: H01H37/52
Filed: 1953-09-08
Abstract: 743,041. Thermal switches. BISSELL, A G. June 25, 1954 [Sept. 8, 1953], No. 24804/53. Class 38(5) A thermal switch for use with an aquarium comprises a bi-metallic strip which is in the form of a U with a long arm 8 and a short arm 9, the long arm 8 carrying a contact 6 which co-operates with a fixed contact 5 secured to a switch base 1, the bimetallic strip being attached to the switch base 1 at a point in the short arm 9 near the bend in the U by a screw 10 or the like so as to be able to rock bodily about the point. The contacts 5, 6 are normally held closed by means of a magnet 7; adjustment of the switch being made by means of a screw 15, the end of the short arm 9 being held against the point of the screw 15 by means of a leaf spring 13. To facilitate adjustment the switch is housed in a transparent plastic casing 4.
Patent GB-259587-A (GB)
Inventor: JERIKE JULIUS
IPC: H01R13/595
Filed: 1926-10-06
Abstract: 259,587. Jerike, J. Oct, 6, 1926. Couplings.-A device for securing flexible leads to plug-couplings or other fixtures comprises a single screw that acts only to secure the leads, and grips them either directly or by operating one or more gripping or wedging members. If the screw acts directly it has an enlarged end that abuts against the leads, but a member b may be interposed, having an insulated face i and being either loose or held in place by engagement with the end of the screw a or with a pin or projection on the fixture d. The enlarged end g, Fig. 4, of the screw a screws through a narrow opening in the member d until this opening engages loosely with the neck f and prevents direct withdrawal of the screw. Alternatively a sheet metal member b, Fig. 6, may be bent to encircle loosely the enlarged end g of the screw a, the neck f being as long as the threaded part of the screw so that the screw can be released from the screw socket but not detached. Instead of sliding on a pin in the fixture, the member b may be pivoted thereon, and actuated by a screw arranged either as in Fig. 4, or longitudinally to press upon an arm formed on the member b. The movement of the member b towards the leads may be effected by means of inclined surfaces z, Fig. 20, the members being displaced relatively to the surfaces by means of the screw a<2> which is hollow and surrounds the leads. Means q may be provided for locking the device in the gripping position. According to the Specification as open to inspection under Sect. 91 (3) (a) the screw a, Fig. 20 (Cancelled), advances in a fixed socket t and carries a collar u on which a pair of members bare mounted either resiliently or pivotally. The collar may be in screw engagement with the screw a which then turns without advancing axially. Instead of inclined surfaces formed on the fixture a conical surface a<1>, Fig. 25 (Cancelled), formed inside the screw a may act upon the members b, these being mounted upon a fixed ring u. The member b may be formed with a cam b', Fig. 30 (Cancelled), that is moved by a slider o moving on the screw a. Specifications 13274/10 and 78/13 are referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-172101-A (GB)
Title: Improvements in or relating to the treatment of complex sulphide ores
IPC: B03C1/015
Filed: 1920-08-28
Abstract: 172,101. Perkins, W. G. Aug. 28, 1920. Drawings to Specification. Sulphur.-In the treatment of complex sulphide ores containing pyrites in an atmosphere of superheated steam, sulphur is formed and may be collected: and, if the amount of sulphuretted hydrogen in the gases issuing from the furnace is in excess of the amount required to react with the sulphur dioxide for the production of sulphur, air may be introduced to effect the required oxidation.
Patent GB-615060-A (GB)
Title: Improvements in or relating to landing gear for aircraft
IPC: B64C25/38
Filed: 1946-08-21
Abstract: 615,060. Aircraft landing gear. WOOD, R. T. Aug. 21, 1946, No. 24935. [Class 4] At least one landing-wheel 1, shown in front view, Fig. 2, and an endless track assembly 9 are mounted on a single undercarriage leg 3a; as shown, the track comes into contact with the ground upon compression of the wheel 1 during landing; normally, two undercarriage legs, one on each side of an aircraft longitudinal axis are employed. Modifications in the arrangement and number of wheels and endless tracks on each leg are described. The driving-wheel for an endless track may be driven by gearing from the wheel 1, a hydraulic control 12 being provided. As shown in side view, Fig. 1, the track guiding and driving wheels a.re carried on a chassis 6 connected to a pivoted beam 3 resiliently connected to the leg 3a.
Patent GB-1534649-A (GB)
Title: Floating carrier retention for a planetary gearset
IPC: B60K17/04
Filed: 1977-06-15
Abstract: 1534649 Epicyclic gearing CATERPILLAR TRACTOR CO 15 June 1977 [19 Nov 1976] 24989/77 Heading F2Q In a planetary gear system in which the planet carrier 24 is radially floating to equalize the stresses in the gear, the carrier is axially restrained by walls of an annular groove 56 into which projects the inner periphery of the carrier. The groove 56 in the embodiment of Fig. 2 incorporates thrust pins 63 which may be replaced when they wear. The thrust pins may alternatively be on the inner portion 62 of the carrier 24 or thrust bearing rings may be provided. The planet gears 26 are stepped, there is a driving sun 21, a reaction ring 44 releasably held by a brake 47 and an output ring 48 driving a wheel 12. An hydraulic motor drives sun 21.
Patent GB-998870-A (GB)
Title: Metallized azo dyestuffs
Inventor: MOISO UGO
IPC: C09B45/14
Filed: 1963-06-24
Abstract: A process for the preparation of metallized azo dyestuffs comprises treating a compound of the general formula <FORM:0998870/C4-C5/1> in which R is an alkyl radical containing from 1 to 4 carbon atoms or a hydrogen atom with a chromium salt or a cobalt salt and urea, ethylene glycol, an ether of ethylene glycol, formamide, dimethyl formamide or a mixture thereof under anhydrous conditions. In examples: the pure dry dye obtained by coupling diazotized 4-sulphamide-2-aminophenol with 1-carbomethoxyamino - 7 - naphthol, is heated with urea, ethylene glycol and chromium acetate to obtain a dye giving grey-blue shades on wool and polyamide fibres (1) and in a similar process the monoether of ethylene glycol is used (2).
Patent GB-171228-A (GB)
Title: Improvements relating to artificial limbs
IPC: A61F2/64
Filed: 1920-08-31
Abstract: 171,228. Pringle, A., and Kirk, T. S. Aug. 31, 1920. Artificial limbs.-Relates to (a) a full-stroke device with automatic reversing means for the joint of an artificial limb, and (b) positive locking- means for the joint. In one construction limbs (not shown) carry straps A, B pivoted on pins e. The strap A, Fig. 2, terminates in ratchet teeth a with deep notches a<1> on either end which engage a pawl b held by a spring d pivoted to the strap B in such a manner that the direction of motion of one limb relative to the other can only be reversed when the pawl is in one of the deep notches. By means of a handle c the pawl b can be turned to clear the teeth. Positive locking means for the straps, Fig. 4, comprise a locking- bolt f on the strap B engaging notches g on the strap A, a flat on the bolt allowing of an inoperative position. The handle c' of the bolt is locked by a notched spring f<2>. A modification is described in which one limb has holes engaged by one of two pivoted spring-pins, one pin only being effective in one direction, the selection of which is made by a cam-groove. In a further modification, the one-way locking is obtained by the jamming of a sphere between two surfaces of different curvature.
Patent GB-950617-A (GB)
Title: Improvements in or relating to 18,20-oxygenated steroid derivatives
Inventor: GEORGIAN VLASIOS
IPC: C07J41/00
Filed: 1962-09-02
Abstract: The invention comprises steroids of the formulae: <FORM:0950617/C2/1> <FORM:0950617/C2/2> <FORM:0950617/C2/3> <FORM:0950617/C2/4> <FORM:0950617/C2/5> wherein B is keto; X is hydrogen, hydroxy, acyloxy or keto; D, R and R4 are hydrogen, hydroxy or acyloxy; R1 is hydrogen, hydroxy, acyloxy, or methyl; R2 is hydrogen, hydroxy, acyloxy, methyl or fluoro; R3 is hydrogen or methyl; R5 is hydrogen or fluoro; and A is hydroxy or acyloxy; at least one of R, R1, R,2 R4 and R5 in the third general formula (formula XI) above being other than hydrogen.  They may also exist in the 18-hydroxy -20- keto tautomeric forms or, when the 11-substituent is keto, in the 11, 18-epoxide tautomeric forms.  They may be prepared from the corresponding D 20,N-18, 20- imino-pregnenes by treatment with nitric acid.  In the products, hydroxy groups may be acylated, acyloxy groups may be hydrolysed, 6b -substituents may be isomerized to 6a , 3- or 11-hydroxy substituents may be oxidized to keto groups, and similar keto groups may be reduced. The products may also be converted to D 4-3-ketones by bromination and dehydrobromination of the 3-ketones, or, when R4 is hydroxy, by dehydration.  Examples are given.  Reference is also made to the preparation by the above method of steroids of the formula: <FORM:0950617/C2/6> wherein R3 and R5 are as defined above; R6, R7, R8 and R9 have the same values as R, R1, R2 and R4 respectively, V has the same values as X, and T is hydrogen, hydroxy, acyloxy or keto Specifications 930,676, 950,615 and 950,616 also are referred to.
Patent GB-359114-A (GB)
IPC: F02M7/11
Filed: 1930-08-23
Abstract: 359,114. Spray carburetters. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Aug. 23, 1930, No. 25220. Convention date, Sept. 2, 1929. Addition to 254,162, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for]. [Class 7 (iii).] The parent Specification describes a carburetter having an air throttle h, an airtight float-chamber e, a connection d from the latter to the throat of a main choke tube b, and one or more auxiliary choke tubes c in one of which the main fuel nozzle f is situated. According to the invention, an additional throttle k is provided, and connected by a link i to the air throttle so as to be closed when the throttle h is closed, thereby preventing the production of an excessive vacuum in the choketube b and float chamber air space. Fuel for slowrunning is supplied through a tube n which passes through a slot m in the throttle valve k. The nozzle f and tube n are provided with constrictions g, o respectively.
Patent GB-245727-A (GB)
Title: Improvements in or relating to loud-speakers or ear-phones for wireless reception and other applications
IPC: H04R13/02
Filed: 1925-10-10
Abstract: 245,727. Soc. Anon. des Brevets K.ornfeld, (Assignees of Kornfeld, A.). Jan. 9, 1925, [Convention date]. Telephones.-In a loudspeaker or earphone comprising an iron diaphragm 4, a magnet 2 polarized at its centre and periphery, a softiron core 6, and a central rod 7 adjustable so as to vary the air gap between its inner end and the diaphragm, the peripheries of the magnet 2 and the diaphragm 4 are connected by a cylindrical sheet-iron ring 3. The winding 9 is fixed. In a modification the core 6 is flush with the inner side of the magnet 2, but projects slightly beyond its outer side; in this construction the size of the coil 9 may be increased. The parts 2, 3 may be slit to eliminate Foucault currents. The system may be enclosed in a non- magnetic box 1.
Patent GB-278005-A (GB)
Title: Improvements in processes for producing metals in electric furnaces
IPC: C21B13/12
Filed: 1927-09-26
Abstract: 278,005. Gustafsson, E. G. T. Sept. 27, 1926, [Convention date]. Furnace details.-A melting furnace employing a slag bath and provided with adjustable electrodes is operated so that the combined arc and slag resistance per electrode is at least 0.02 ohms. The resistance may be increased to 0.06 ohms. Voltages may be increased as the depth of the slag bath increases by varying the transformer ratio. Alternatively continuous or intermittent tapping of slag may be effected. A drop of 110 -220 volts per electrode may be employed. The electrodes may be intermittently immersed if the temperature falls too low. The composition of the charge may be varied to give a conductive slag to enable long arcs to be used. The furnace may be used for producing iron and iron alloys. aluminium or alloys thereof, or zinc. The charge may be in the form of briquettes.
Patent GB-744947-A (GB)
Title: Improvements in glass compositions
Inventor: STANWORTH JOHN EDWIN
IPC: H01B3/08
Filed: 1953-09-14
Abstract: 744.947. Glass. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 10, 1954 [Sept. 14, 1953], No. 25336/53. Class 56 A glass composition comprises a major oxidic component consisting of at least one glass-forming oxide selected from silica, germanium dioxide, tellurium dioxide, arsenic oxide, antimony oxide, phosphorous pentoxide, boric oxide and vanadium pentoxide, the vanadium pentoxide comprising at least 50 per cent by weight of the major oxidic component, and a minor component consisting of at least one modifying oxide selected from the oxides of lead, the alkali metals and the alkaline earth metals, the minor component being present in an amount of less than 50 per cent by weight of the composition. Specification 744,205 is referred to.
Patent GB-707315-A (GB)
Title: Apparatus for evacuating liquid from a container and replenishing the container withother liquid
IPC: F01M11/04
Filed: 1951-10-30
Abstract: 707,315. Cleaning engine sumps. PILLIN, Ltd., J. B., and EARLY, K. C. Oct. 9, 1952 [Oct. 30, 1951], No. 25381/51. Class 116 Apparatus for withdrawing used liquid from a container such as a car sump and replenishing with clean liquid has a twoway valve biased to communicate between the conduit to the sump and a suction conduit and means, being the pressure of clean liquid supply, to overcome the bias to move the valve to bring the conduit to the pump into communication with the clean liquid supply. The valve casing, Fig. 1, is provided with a suction port 7, a clean liquid supply port 8 and a duct 1 leading to the sump. The casing is closed by end plugs 5, 6 and has a cylindrical passage for a piston 3 biased by a spring 4. A passage 10 connected to a passage 21 is connected to the valve passage by a bleed passage 9 and by a larger passage 11. A bleed passage 12 is also connected to the passage 21, the passages are closed by plugs 14 to 16. The application of suction to the port 7 withdraws liquid from the sump. The application of the pressure of clean liquid to the port 8 moves the piston 3 to the left and uncovers first the passage 9 allowing a little clean liquid to escape and be withdrawn and then the passage 11 is uncovered and the port 7 is covered, any liquid trapped by the piston returning through passage 12 to the sump. The conduit connected to the port 7 is connected to a pump 64 driven by an electric motor 33 and having a flow indicator 65 and sight glass and stop and check valves 70, 71 to a storage tank for used liquid. Clean liquid is conveyed from a storage tank by a pump driven by an electric motor to a union to conduits 32 and filters 75, 76 to preset meter 80 from which it is conveyed to port 8 of valve. Stop valves 22 to 25 isolate the filters for cleaning purposes. The motors are controlled by starters 28, 29 incorporating relays controlled by switch 26. A limit switch 91, Fig. 8, for the pump for supplying liquid is actuated by the meter 80. Hold-in coil 92 of starter 28 is energized when switch 26 is connected between C-D and hold-in coil 93 of starter 29 is energized when switch 26 is connected between A-B and when the limit switch 91 is closed. The limit switch 91 comprises a cam plate mounted adjustably on a spindle so that the quantity of liquid delivered can be varied, the spindle being driven by the meter through a clutch. The cam plate has a projection in the path of a roller on the control arm of the switch. The spindle may have a knob and a disc. The valve may have one conduit instead of two and a single reversible motor' may drive the pumps.
Patent GB-1220368-A (GB)
Title: Improvements in photolytic etching of silicon dioxide
IPC: C04B41/53
Filed: 1968-05-28
Abstract: 1,220,368. Etching. GENERAL ELECTRIC CO. 28 May, 1968 [29 May, 1967], No. 25430/68. Addition to 1,220,365. Heading B6J. A silicon dioxide surface is etched by applying thereto an etchant composed of an inorganic fluoride which is a source of fluoride ions and an N-halosuccinimide which is photolytically decomposable to produce an acidic product which may react with the fluoride ions to produce a chemically reactive species capable of etching silicon dioxide, and exposing the interface between the surface and the etchant to a pattern of radiation to form the reactive species. The fluoride may be an alkali metal (e.g. sodium) or ammonium fluoride. The organic compound may be N-chloro or N-bromosuccinimide. The etchant may be employed as a solution in water or methanol or as a solid film in an alcohol soluble butyrate resin.
Patent GB-190787-A (GB)
Title: Improvements in tooth brushes
IPC: A61C17/24
Filed: 1921-10-17
Abstract: 190,787. Sheridan, R. B. C. Oct. 17, 1921. Converting reciprocating into rotary motion.- A toothbrush is connected to a member H carrying a spur wheel C meshing with a free wheel F, which is rotated through the medium of a pawl K and ratchet L, by inward movement of a rack B engaging a pinion M. In addition a ratchet bar D, shown in Fig. 7, may be provided carrying a spring I, one end of which, during inward movement of the rack, bears against a piece of sheeting H<1> to withdraw the bar D from contact with the wheel C until the spring has passed the sheeting. The spring presses the bar into contact with the wheel during the outward movement of the rack. In another arrangement, the teeth of the wheel C are inclined so that the ratchet bar, which is pressed towards the wheel by a spring, acts to rotate the wheel only as the rack is moved outwardly.