baber/WOPTO huggingface dataset:
Patent GB-1096446-A (GB)
Title: Improvements in or relating to supply circuits for synchros
Inventor: PARROTT EDWARD JAMES
IPC: H03H11/22
Filed: 1966-01-18
Abstract: 1,096,446. Synchros. MUIRHEAD & CO. Ltd. Oct. 18, 1966 [Jan. 18, 1966], No.2365/66. Heading G1N. A two phase synchro has its windings W1, W2 energized by a system comprising a square wave source G, and an active bandpass filter ABF, the output of which is fed both to one winding W1, and also to an integrating amplifier IA which introduces a 90 phase shift and energizes the second winding W2. The currents to the windings are supplied through resistors R1, R2, to provide a substantially constant current supply, thereby reducing temperature-induced variations in impedance, and consequently in phase, within the synchro.
Patent GB-191294-A (GB)
Title: An improved device for filling grease guns or pumps
IPC: F16N37/02
Filed: 1922-01-27
Abstract: 191,294. Kent, H. C. Jan. 27, 1922. Piston apparatus for discharging receptacles.-Apparatus for filling grease guns &c. comprises a container 1 fitted with a piston 2 having an orifice 3 in which the open end of the grease gun 5 is mounted. The piston is then depressed and the grease is forced into the gun. Adapter rings of various sizes may be fitted in the orifice 3 to take grease guns &c. of various sizes.
Patent GB-158269-A (GB)
Title: Improvements in or relating to rotary valves
IPC: F01L7/08
Filed: 1921-01-18
Abstract: 158,269. Dennison, F. R. Jan. 21, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Rotary valves; toothed gears.-An internalcombustion engine or a steam engine is provided with a rotary valve for controlling the admission and exhaust, which is balanced against lateral pressures. A cylindrical or tapered valve plug 1 is mounted in a water-cooled cylinder head and is rotated from the engine by gearing. The valve has two passages 7, 7<A> separated by a partition 8, and the casing has one admission port 11, two exhaust ports 12, 12A, and two ports 13, 13<A>, leading to the combustion chamber. An additional admission port may be provided if desired, and oil grooves 10 are provided in the casing parallel to the axis of the valve. In an alternative form. Fig. 3, the valve may be mounted vertically in the casing, and the spindle 2<A> is provided with a member 20 which forms a bearing in a bracket 21. The position of the valve is adjusted by nuts 23, 23<A>. The ports are arranged in the same manner as before, but in addition, water conduits may be provided in the valve plug. The valve may be actuated from a driving shaft 32 so as to provide a quick opening and closing, by means of elliptical gear wheels 31, 31<A>. circular gear wheels 34, 34<A>, and a connecting chain 33.
Patent GB-812289-A (GB)
Title: Improvements in and relating to formwork
Inventor: MELTON FRANCIS JOSEPH
IPC: E04G11/28
Filed: 1956-01-25
Abstract: 812,289. Wall shuttering. ACROW (ENGINEERS) Ltd. Jan. 4, 1957 [Jan. 25, 1956], No. 2544/56. Class 20(2) Formwork panel soldiers comprise two hinged parts, one 16 attachable to a panel, the other 17 to an existing structure 10 both provided near the hinge 18 outwardly extending members 20, 24 and with means 26 between the outer ends of the members to adjust the angle between the two parts 16, 17. Soldiers consist of upper and lower parts 16, 17 each formed of two channel sections arranged back to back with a space between the backs. A loose bolt 18 acts as a hinge between a flat end plate on the channel of the upper part 16 and a curved end plate on the channels of the lower part 17. A steel shuttering panel 14 (strengthened by horizontal channels 44) is attached to the top part 16 and the lower part 17 is fixed to the wall 10 by bolts 34 passing between the channel sections comprising the parts 16 and 17 of the soldiers to engage in sockets 32 cast in the wall. Angles 38 also engage in holding plates 38a. Frame 20, 21, 22 is separated from frame 24, 25 by a screw coupling 26 which can vary the plane of the casting face by 4 degrees. Three soldiers may be used for each panel, the horizontal distance between the bolts being substantially the height of the panel. Bars 20 or 24 may serve as bases for platform planks and bars 21 for the attachment of handrails.
Patent GB-192693-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02F1/24
Filed: 1923-01-27
Abstract: 192,693. Durand, E. H. M. E. Feb. 2, 1922, [Convention date]. Regulating.-Two or four stroke engines are constructed so that they can function with two additional strokes to the cycle, whereby, in the case of aircraft engines for example, reduction in atmospheric pressure is compensated for. The two extra strokes are used to draw in a supplementary charge and compress it into a reservoir, from which it is admitted to the cylinder as an extra charge at the end of the normal suction stroke; or the supplementary charge may be compressed directly into another cylinder working at about one stroke in advance. In the case of a fourstroke engine, there may be four additional strokes permitting two supplementary charges. The four-stroke engine described comprises a number of cylinders which is a prime number with respect to the numbers 2 and 3, and is provided with two overhead cam shafts g, h, the latter of which rotates at half-speed and is used for the four-stroke cycle, whereas the former rotates at one-third speed and is used for the six-stroke cycle. Each cylinder has a normal inlet valve d actuated by a lever d', two exhaust valves e actuated by a forked lever e<1>, and a supplementary valve f which is actuated by a lever f<1> and controls the delivery and compression of the supplementary charge and its re-introduction at the end of the normal suction stroke. The levers d<1>, e<1>, f<1> are pivoted on a shaft j which is eccentrically mounted so that it can be moved to bring the levers into engagement with either of the cam shafts, by means of a lever j<2>. Ignition timing devices on one end of the cam shafts are so arranged that, when the shaft j is adjusted, the ignition current which is not required is conveyed to earth. Turbo-compressors or other compression devices may be used in addition, for compensating for rarefaction of the atmosphere.
Patent GB-410276-A (GB)
Title: Improvements in or relating to radio and other high frequency receiving systems
IPC: H03D11/02
Filed: 1933-01-30
Abstract: 410,276. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of George, R. W. ; Riverhead, Long Island, New York, U.S.A.) Jan. 30, 1933, No. 2912. Convention date, Jan. 29, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 29, 1933.] [Class 40 (v).] A super-regenerative receiving circuit comprises a pair of valves 114, 115 with a divided input circuit connected in push-pull relation and tuned both to the signal frequency and to a lower quenching-frequency, the back-coupling coil 117 for regenerating the signal being included in both anode circuits, whilst the backcoupling coil 125 for the quenching frequency is connected in one anode circuit only. The signal is applied by the coil 111 to the coils 112, 113, tuned to signal frequency by the condenser 116, and separated from each other by a condenser 121. This condenser forms with a coil 122 a circuit tuned to the quenching- frequency. The mid-point of these circuits is connected to the cathodes by a centre tapping on the coil 122 or on a parallel resistance 127. The valve anodes are connected to each other by a condenser 126 which has negligible reactance at the signal frequency, and their joint circuit includes the reaction coil 117 and phones 119. The coil 117 assists oscillation at signal frequency in one valve and damps it in the other. The condenser 126 is shunted by a coil 125 which is back-coupled to the grid coil 122 and maintains oscillation at the quenching- frequency. The quenching oscillation in coil 122, by rendering each valve predominantly active in turn, alternately renders the signal circuit self - oscillatory and non - oscillatory. Screen-grid valves may be employed ; and a band-pass filter may be inductively coupled between the reaction coil 117 and the input coils 112, 113. The phones 119 and supply battery 118 may be connected to the plate of valve 114 through a choke coil, and the reaction of the coil 117 controlled by a series variable condenser. The plate of valve 114 may be connected to earth through a coil and condenser in series, tuned to the quenching frequency, (Fig. 2, not shown). In another modification, (Fig. 3, not shown), the aerial input is applied to an auxiliary grid shielded from the other electrodes in the valve 114 ; the corresponding grid in the valve 115 being held at a fixed voltage. The condenser 121 may have an earthed intermediate plate. The Specification disclaims the arrangements referred to in Specifications 385,525 and 394,267.
Patent GB-177642-A (GB)
Title: Improvements in axle bearings for colliery and like trams or wagons
IPC: B61F17/06
Filed: 1921-01-24
Abstract: 177,642. Poole, P. W., and Pattison, W. Jan. 24, 1921. Corve-axle bearings.-An axle bearing for colliery and like trams or wagons comprises a foot or pedestal A with a hollow downward extension having a bearing partition B forming an oil-chamber E above the axle D and an enclosed space F beneath same. An oil-feed duct C extends across the partition and has upwardly projecting side walls C<1> forming an oil well, wicks G feeding the oil to felt &c. tightly packed in the duct C; the space F is also packed with felt &c. to prevent oil from escaping from the bearing too freely. The chamber E may be filled with oil from time to time through an opening H normally closed by a spring-actuated plunger II<1>. In a modification for use with axle journals disposed on the inner sides of the wheels, the bearing partition, oil-duct, and chamber E are formed by a removable box or casing which is dropped into a space provided for it in the pedestal A and is retained therein by side flanges.
Patent GB-718178-A (GB)
Title: Projection lens-system
IPC: G02B13/00
Filed: 1951-02-06
Abstract: 718,178. Optical systems. CYCLOPTIC ANSTALT FUR OPTIK & MECHANIK. Feb. 6, 1951 [March 8, 1950], No. 2943/51. Class 97(1) A projection lens system is composed of two airseparated members, the front member on the long conjugate side comprising at least two lenses and the rear member consisting of a chromatically-corrected triplet-like system of a negative component between two positive components both members contributing in common to the image correction of the system. the total constructional length of the system being at least 0.7 of and at most twice the total focal length of the system, the focal length of the rear member differing by not more than 20 per cent from the focal length of the system and the focal length of the front member being greater than that of the whole system. The rear principal plane of the front member coincides at least approximately with the front focal plane of the rear member. Numerical data are given for an example of the objective shown the front member consisting of a simple positive lens followed by a doublet.
Patent GB-674871-A (GB)
Title: Improvements relating to apparatus for controlling the supply of liquid fuel to the combustion chamber of a prime mover
Inventor: LAWRENCE OWEN NAPIER
IPC: F02C7/22
Filed: 1949-02-03
Abstract: 674,871. Gas turbine plant. LUCAS, Ltd., J. Feb. 2, 1950 [Feb. 3, 1949; April 4, 1949], Nos. 2979/49 and 9063/49. Class 110(iii) [Also in Group XXIX] A liquid fuel supply system fo r a jet propulsion engine, gas turbine &c. comprises a throttle which sets up a pressure difference in the fuel supply system and is regulated by means responsive to blower pressure, and means responsive to said pressure difference and to a pressure related to the speed of the engine for controlling a servo mechanism which controls the rate of fuel supply to the engine. As shown, blower pressure acts on an evacuated bellows m which adjusts a leakoff valve j controlling the position of a spring-loaded piston f to which is fixed a throttle d in the fuel conduit c, b, c. The pressure difference thus set up is applied to a piston 7 which adjusts a leak-off valve 8 controlling a servo-piston 11 which adjusts the output of a fuel pump 10, e.g. a variable swashplate pump. The piston 7 is also subjected to a variable load due to a spring q having an abutment p which consists of an orificed piston whose position is determined by a leak-off valve t adjusted by a diaphragm u which is subjected to the pressure developed by a governor pump w driven by the engine. An adjustable byepass valve may be provided between the diaphragm u and the governor pump. The leak-off valve t may alternatively be actuated by a mechanical governor. In a modified system, the leak-off valve controlling the servo-piston 11 is carried at one end of an intermediately pivoted lever, the other end of which is subjected to the opposed actions of two diaphragms responsive respectively to the pressure difference across the throttle d and to a pressure related to the speed of the engine. Instead of the servo-piston 11 controlling a pump it may operate a valve in the fuel supply system. Specification 577,016, [Group XXIX], is referred to.
Patent GB-853359-A (GB)
Title: Centrifugal electric switch
Inventor: EVANS LOWELL DEWITT
IPC: H01H35/10
Filed: 1958-01-29
Abstract: 853,359. Centrifugal switches. GLOBE INDUSTRIES Inc. Jan. 29, 1958, No. 3007/58. Class 38 (5). [Also in Group XXVI] A rotational speed governor for an electric motor comprises two semi-circular discs 25, 26 insulated the one from the other and each carrying a flexible contact arm 32, 34. On being rotated at the critical speed the contacts 36, 38 break to insert resistance into the motor circuit. A twopole commutator may be provided as part of the governor or the rear ends of the semi-circular discs 25, 26 may also function as a face commutator. The screw 42 provides for varying the critical speed of the device and may be substituted by a movable contact 38.
Patent GB-474820-A (GB)
Title: Cosmetic make-up base and method of manufacture
Filed: 1936-01-31
Abstract: A "make-up base" comprises a powdered solid ingredient (such as zinc and aluminium stearates, talc, kaolin and oxides of titanium zinc and magnesium), and if desired a pigment, an unguentous ingredient (such as fats, waxes or higher alcohols, cetyl alcohol, lanolin, cholesterol, isocholesterol), and an emulsifying ingredient (such as soap or triethanolamine).  The unguentous and emulsifying substances are melted together and the powdered solid added, the proportions being such that the final product is a firm solid.
Patent GB-797113-A (GB)
Title: Organotin compounds and compositions containing same
IPC: C07F7/22
Filed: 1956-01-31
Abstract: The invention comprises dibutyl tin-S,S1-bis-(2-ethyl hexyl mercaptoacetate) and dibutyl tin - S,S1 - bis - (iso - octylmercaptoacetate).  They may be prepared by the process disclosed in the parent Specification by reacting dibutyl tin oxide with ethyl hexyl mercaptoacetate and iso-octylmercaptoacetate respectively.ALSO:Halogen containing synthetic resin compositions which include plasticizers may be stabilized against deterioration by light and heat by the incorporation therein of dibutyl tin - s,s1 - bis - (2 - ethyl hexyl mercaptoacetate) or dibutyl tin - S,S1 - bis - (isooctyl mercaptoacetate).  A long list of resins is specified.  The examples describe compositions comprising: 1 (a) polyvinyl chloride, dioctyl phthalate and dibutyl tin-s,s1-bis-(2-ethyl hexyl mercaptoacetate), 1(b) polyvinyl chloride-polyvinyl acetate copolymer, dioctyl phthalate and dibutyl tin-S,S1-bis-(2-ethyl hexyl phthalate) and (2) polyvinyl chloride, dioctyl phthalate and dibutyl tin-s,s1-bis-(isooctyl phthalate).ALSO:Rubber hydrochloride, chlorinated rubber and chlorinated rubber hydrochloride may be stabilized against deterioration by light and heat by addition of dibutyltin-S,S1-bis (ethyl hexyl mercaptoacetate) or dibutyltin-S,S1-bis (isooctyl mercaptoacetate).
Patent GB-825843-A (GB)
Title: Batch loader
IPC: B28C7/06
Filed: 1956-01-31
Abstract: 825,843. Lever load handling machines. SIMS, R. W. Jan. 31, 1956 [Feb. 10, 1955], No. 3106/56. Class 78 (3). [Also in Group XVIII] A device for loading batches of dry-mix concrete into transit mixers comprises a container 20 on a frame 21 pivoted to a base frame 10 by arms 22, 25, the arms 25 being connected by a cross member 25a passing through slots 29 in the frame 21. The container is raised by cables 40 passing from winch drums 32 over pulleys on uprights 11 on the frame 10 and pulleys on the arms 22, 25 to anchorages on the uprights 11. The arms 22, 25 rise until arms 22 engage the uprights when further movement of the arms 25 moves the member 25a along the slot 29 so tipping the container to discharge its contents through an hydraulically controlled door 30. The arms 22 engage a lever 75 in their raised position to close the throttle of the winch motor. Means are provided for weighing the contents of the container (see Group XVIII). In a modification, a single cable 40 is used instead of two separate cables. Wheels 14 are provided to be lowered to raise the frame 10 from the ground for transit.
Patent GB-924221-A (GB)
Title: Improvements in or relating to means for measuring displacement
Inventor: KENMIR CHARLES VIVIAN
IPC: G01B13/02
Filed: 1960-01-28
Abstract: 924,221. Fluid-pressure servomotor control systems. BOULTON PAUL AIRCRAFT Ltd. Jan. 30, 1961 [Jan. 28, 1960], No. 3147/60. Class 135. Deflection of a member 17 is indicated by a fluid pressure gauge 1 through means consisting of a chamber 5 connected through a restriction 7 to a source of pressure fluid and having a vent 9 controlled by a plunger 11 between which and the member 17 is a spring 13. Any deflection of the member 17 causes the plunger 11 to adjust the vent to vary the pressure in the chamber 5 until the pressure and the spring force are in balance. The apparatus may be used to give a remote indication of the setting of discharge valve in an oil tanker.
Patent GB-1045602-A (GB)
Title: Method of reducing fine iron ore in a fluidized-solids reactor
Inventor: MARSHALL WILLIAM EDWIN
IPC: C21B13/00
Filed: 1964-01-24
Abstract: <PICT:1045602/C6-C7/1> A process of reducing finely divided iron ore by fluidized solids reduction comprises:-(a) reducing fluidized, finely divided iron ore, in the fluidized solids reactor 1, by means of a reducing gaseous mixture at an elevated temperature, (b) introducing all gases derived from the reduction into a circulatory system, via the conduit 2, wherein the moisture content of the gases is lowered by passage through a gas washer and cooler 3, and a certain amount of the gases is withdrawn from the system via the conduit 4, the remainder being returned by the pump 6, via the conduit 7, and the carbon dioxide absorber 8 or the bi-pass conduit 9, as required, to the reactor, (c) partially burning a fluid fuel with oxygen in the burner 11, the products of combustion, which are at a temp. of 2000 DEG -3500 DEG F, passing through the passageway 14 in the partition 13, and intermixing with the cooled and dried circulated gases, which enter the passage 14 from the passage 15, in such proportion that temperature of the mixture is 1500-1700 DEG F. A supplementary burner 17 may be placed in the upper part of the reactor. Oxygen for use in the combustion chamber is produced in the oxygen plant 10: the waste gas fuel leaving the system at 4 may be burnt to operate this plant, or may be used for the protection of reduced material taken out of the reactor.
Patent GB-289952-A (GB)
Title: Improvements in or relating to lids for use with boxes or containers
IPC: B65D45/20
Filed: 1927-02-04
Abstract: 289,952. Marris's, Ltd., and Kirby, H. Feb. 4, 1927. Hook fastenings.-A lid 6 for earthenware luncheon cases &c. is made from earthenware or metal and is of suitable dimensions to cover a range of cases. A resilient metallic strap 7 is riveted to the lid 6 and carries hinged members 8 the cranked ends 8<a> of which are turned into engagement with the underside of the case to secure the lid. The strap 7 is of greater width than the lid and the outer ends thereof tend to spring away from the lid when the parts 8<a> are engaging the box.
Patent GB-264668-A (GB)
Title: Improvements in line-spacing mechanism for typewriters
IPC: B41J19/84
Filed: 1926-02-04
Abstract: 264,668. Jardine, Ltd., J., and Cohen, I. Feb. 4, 1926. Line-spacing mechanism.-A pawl co-operating with a ratchet-wheel is adjusted to vary the line spacing by a finger-lever mounted on the pawl-carrying lever on the same pivot as the pawl; the pawl-carrying lever may have a tappet for forcing a detent into engagement with the ratchet-wheel. A lever A pivoted on a stud B on the carriage R and connected by a link D to the line-spacing lever E, carries a pawl G which co-operates with a ratchet-wheel C and is adjusted for single, double, or treble spacing by a finger-lever J pivoted on the pivot H of the pawl. A spring K retains the pawl in contact with a projection J<1> on the finger-lever. The fingerlever is retained by a notched plate L on the lever A; or a spring-plunger on the finger-lever may engage notches in the lever A. A lever M mounted on the stud B carries a detent roller N which is forced into engagement with the ratchetwheel by an adjustable tappet 0 on the lever A. The detent roller can be released by means of a finger-lever P engaging the tail M<1> of the lever M. The line-spacing mechanism is so arranged as to permit removal of the platen from the carriage.
Patent GB-110690-A (GB)
Title: A New or Improved Attachable and Detachable Bar for Fire-grates.
Inventor: CASS GEORGE WILLIAM
IPC: F23H13/00
Filed: 1917-03-05
Abstract: 110,690. Cass, G. W. March 5, 1917. Fuel-economizers; trivets.-A supplementary bar A is secured between the permanent ordinary bars H, K of a fire-place to prevent coal from falling through them, by means of overlapping or crossing plates B', B<2>, C<1>, C<2>, one or both of which in each pair may be turned about the ends of the bar A, so that their edges engage with the bars H, K. The crossing plates are then secured by pins in apertures f<1>, f<2>. or by other means. The bars may carry outwardly extending trivets or brackets.