baber/WOPTO huggingface dataset:
Patent GB-220024-A (GB)
Title: Improvements relating to carburettors
IPC: F02M69/00
Filed: 1923-04-27
Abstract: 220,024. Holder, F. J. April 27, 1923. Spray carburettors; cylinders receiving liquid fuel.-In a two-stroke engine in which air is compressed in the crank case d and transferred to the cylinder m, the carburetting-apparatus comprises a float chamber i supplying fuel through a non-return valve to a chamber a, from which the fuel is delivered through a pipe e to a nozzle in the transfer passage l, by air pressure transmitted from the crank case to the top of the chamber a by a pipe c. A valve n, operated from the engine shaft, e.g. by a cam o, is provided either on the fuel pipe e, or the compressed air pipe c. The fuel nozzle may be situated at any point in the passage conducting the air from the crank case to the cylinder.
Patent GB-836739-A (GB)
Title: Improvements in pressure vessels
IPC: G21C13/00
Filed: 1957-04-09
Abstract: 836,739. Nuclear reactors. DUNCAN, J. P., MURRAY, N. W., and THOMPSON WATER TUBE BOILERS Ltd., J. April 8, 1958 [April 9, 1957] No. 11456/57. Class 39(4). A pressure vessel has corrugated walls comprising shell members curved in two directions, fastened along their junction with each other to ribs of a supporting structure. The support structure 10 carries loads due to supports for and pipe entry to the vessel. The shell members 20 preferably have the shape which would be taken up by a soap film on the support structure, since they need bear only forces due to the internal pressure, but may be of simpler forms. The vessel may be basically spherical, cylindrical or flattened. Steel shell members may be used which are concave from inside the vessel, Figs. 1, 2, or concrete members which are convex from inside, Fig. 11. In the flattened form of vessel the support structure may need stiffeners and the members inside. The structure may be of rolled steel joist or of structural sections. Closure members for the vessels may be flat plates or curved plates in supporting frames.
Patent GB-938247-A (GB)
Title: Gas turbine engine having cooled turbine blading
Inventor: MALLEY HARRY HARTLEY
IPC: F01D5/18
Filed: 1962-03-26
Abstract: 938,247. Gas turbine plant. ROLLS-ROYCE Ltd. March 26, 1962, No. 11525/62. Class 110(3). A gas turbine engine has at least one fixed hollow aerofoil member spanning a main annular gas duct and means for supplying a cooling fluid radially inwardly across the duct to passages in turbine rotor blades disposed in the duct downstream of the member, which itself is disposed downstream of an additional bladed turbine rotor stage forming part of the same rotor as the first mentioned stage. A fixed hollow aerofoil member is defined as a member which does not rotate about the axis of the engine and may be a pivotable nozzle guide vane. The high pressure turbine 8 of a compound gas turbine comprises stages 14, 15 and nozzle guide vanes 17. A tube 22 extends through each vane 17 having apertures 25 communicating with chamber 23. Cooling air supplied by pipe 34 to annular manifold 31, passes through tubes 32, 22, 39 to annular manifold 38, then through apertures 54 to chamber 44 and into passages 49 in the blades 48. Some air flows through apertures 25, 27 to cool the vanes 17 and thermally insulate them from the tubes 22. In a modification a further annular member 55 having inclined discharge orifices 57 may be mounted on member 36 to direct air into the passages 49 without loss. Vanes 17 may be pivotable about their longitudinal axes. Pipe 34 may contain an automatic shut-off valve and a heat exchanger or cooler may be provided in pipe 34 to cool air tapped from the compressor. Specification 884,409 is referred to.
Patent GB-398940-A (GB)
Title: Improvements in tea and coffee pots
IPC: A47J36/14
Filed: 1932-04-23
Abstract: 398,940. Teapots. SMITH, R. A., 45, Hangingwater Road, Sheffield. April 23, 1932, No. 11691. [Class 129.J A metal or porcelain tea or coffee pot has a spout a which together with a strainer b forms an open topped cavity of rounded internal shape without crevices in which dirt can lodge. The lid f is preferably formed with a lip f<1> which extends over the spout and rests, when the lid is closed, on a flange d on the strainer. The spout may be formed integrally with the strainer and secured in an opening in the pot. The holes c in the strainer may be replaced by slots.
Patent GB-312768-A (GB)
Title: Process for extracting oil from fish liver
IPC: C11B1/02
Filed: 1928-04-20
Abstract: 312,768. Williams, W. P., (Soc. Fran- þaise des Produits Alimentaires Azotes). April 20, 1928. Fatty oils, extracting.-In the extraction of oil from fish livers, fresh or salt livers are pulverized and heated at 42 to 45' C. for 10 to 24 hours, the liver cells being broken down by the autolytic action of the ferments inherently contained. Oil is separated from the residue by decanting, filtering or centrifuging, and by extraction with water. The residue constitutes a degras for leather dressing.
Patent GB-117964-A (GB)
Title: Improvements relating to Room and other Grates, Ranges and Heating Apparatus.
Inventor: PATTERSON THOMAS KENNEDY
IPC: F24B1/18
Filed: 1917-08-16
Abstract: 117,964. Patterson, T. K. Aug. 16, 1917. Open fire-places. - A chamber or dome is provided above the fire, with outlets near its lower parts, so that the hot gases of combustion are retained for some time before passing to the flues. As shown in Figs. 2 and 3, the outlets take the form of depending tubes g, one on' each side of the fire. Fig. 5 shows a modified arrangement with a central depending outlet pipe m. According to the Provisional Specification, removable inclined baffleplates may be provided within the chamber, which also may extend into the room above or at the sides of the fire-place, and the gases after passing through the chamber may be caused to pass again into the fire in order to consume the smoke. Reference has been directed by the Comptroller to Specification 1104/73.
Patent GB-1224262-A (GB)
Title: Improvements relating to photographic exposure control apparatus
IPC: G03B7/083
Filed: 1969-03-05
Abstract: 1,224,262. Photographic Apparatus. POLAROID CORP. March 5, 1969 [March 6, 1968], No.11771/69. Heading G2A. The second embodiment of Specification 1, 223, 448, in which the electromagnetic holding device 97 is responsive to an electric circuit for controlling exposure duration in accordance with scene brightness, is modified in that a further switch, S 5  (switches S 4 , S 5  of the above mentioned second embodiment becoming the switches S 6 , S 4  respectively), is provided so that, when the final flash-bulb 40 of an inserted flash package 25 has been removed from its operative position, the camera will be automatically reset for photography with available light, without first having to remove the flash package. Furthermore since in flash operation the time integral of light falling on a film being exposed is not constant, and thus due to delay in movement of the shutter closing blade 48, more light than is required for proper exposure will fall on the film, a compensating resistor (226) Fig. 6 (not shown) is provided to reduce the time required to generate a signal to operate the closing blade 48. A second additional resistor (227) in parallel with photo-responsive element (224), serving to limit the duration of the exposure interval to a predetermined fixed time under low flash light conditions is also provided. Insertion of a flash package switches over the switch S 4  to bring the resistors (226, 227) into the exposure control circuit. When the last flash-bulb in the package is fixed, automatic indexing due to shutter movement causes the package to trip the switch S 5  thereby breaking the circuit through the resistors (226, 227) and setting up another circuit containing the element (224). The flash package is at that time positioned with all its faces inclined to the plane of the scene to be photographed.
Patent GB-117739-A (GB)
IPC: F16H55/00
Abstract: 117,739. Brown & Sons, D., and Sykes, A. Oct. 4, 1917. Toothed gearing.-In single or multiple helical gearing, the effects of transverse or torsional deflection are neutralized and the pressures on the teeth are equalized, by forming the wheels in sections free to move axially on the shaft, and interconnecting the sections by fluid under pressure. In the form shown, the wheel sections a, a', a<2>, a' are mounted slidably on keys c, and are provided with plungers f engaging passages e, i in collars d fixed on the shaft b. The passages i communicate with a central passage h supplied with fluid under pressure. A relief valve k may be placed on the shaft, and diaphragms may be used instead of the plungers f.
Patent GB-430770-A (GB)
Title: Improvements in machines for perforating kinematographic films
IPC: B26F1/00
Filed: 1934-04-19
Abstract: 430,770. Perforating kinematograph films. VINTEN, W. C., c/o Vinten, Ltd., North Circular Road, Cricklewood, London. April 19, 1934, No. 11782. [Class 31 (ii)] A kinematograph film perforating machine is provided with a stripper plate d extending between film guides k and attached to one arm f of a lever a which is pivoted to the machine frame x by a pin g whereby the arm and stripper plate are easily detachable to provide access to the die plate m for adjustment. The lever a may be rocked by a cam b. The die plate m may be attached to the frame x at one end by a bolt n having a flattened portion which engages in a corresponding slot in the frame and is tightened by a nut r, and at the other end by a screw t which bears upon a plate u held non-rotatably by a lip v engaging a notch w in the frame x.
Patent GB-1516261-A (GB)
Title: Analogue-to-digital converter
IPC: H03M1/46
Filed: 1976-03-24
Abstract: 1516261 Analogue to digital converter INTERNATIONAL BUSINESS MACHINES CORP 24 March 1976 [30 April 1975] 11803/76 Heading H3H An a-to-d converter comprises a high gain differential amplifier 15 which outputs a voltage comprising a drift component and an amplified input component, a comparator 19 arranged to compare this voltage with a locally generated varying voltage and counting means 22 to count from the start of generation until equality. The inputs of the amplifier are then earthed so its output is solely drift and the counter decremented during regeneration of the comparison voltage until equality. The amplifier may have an adjustable offset so the drift component is always of one polarity. For measuring resistances the converter may be provided with a current source and virtual gravel circuit to provide a voltage to be measured (Fig. 4, not shown).
Patent GB-314978-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/02
Filed: 1929-04-17
Abstract: 314,978. Spalding & Bros. (British), Ltd., A. G., (Assignees of Reach, W. F.). July 6, 1928, [Convention date]. Golf clubs.-A sleeve of shock-absorbing material is interposed between the metal shaft and metal socket of a golf club, the bore of the upper end of the socket being restricted to retain the sleeve in place. A rubber sleeve 3, Fig. 3, is vulcanized or cemented to a metal shaft 2. The shaft and sleeve are driven into the socket 1<a> of a club head 1 and the upper reduced end of the socket is contracted to compress the sleeve. The socket and shaft end are preferably cylindrical but either or both may have a slight taper. In a modification. Fig. 4, the socket is contracted to grip the shaft without compressing the sleeve. In a further modification, Fig. 6, the socket is formed in two oppositely tapered halves 1<b>, 1<c> that are connected together by a screw thread 4 or other means.
Patent GB-631692-A (GB)
Title: Improvements in or relating to the exhaust systems of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1947-05-02
Abstract: 631,692. Two-stroke engines. DRAMINSKY, P. May 2, 1947, No. 11924. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 3, 1947.][Class 7 (ii)] In a two-stroke engine, the first portion F1 of the exhaust pipe has constant cross-section and a subsequent portion is divergent, the lengths being calculated by formulae which are given so that the gaseous charge is induced into the cylinder by the returning negative-pressure wave in the exhaust gas. The divergent portion F 2 , F 3 , may be stepped as shown. Alternately the portion F, may have a closed or open-ended branch leading away transversely or annularly and the end of the pipe may be closed by a rapid-acting non-return valve.
Patent GB-666971-A (GB)
Title: Combined blower and suction device for use in cleaning theatres and the like
IPC: A47L7/00
Filed: 1948-04-30
Abstract: 666,971. Portable cleaners. BREUER ELECTRIC MFG. CO. April 30, 1948 [May 1, 1947], No. 11930/48. Class 8 (i) A combined blower and suction device comprises a casing 6, 7 enclosing a motor-driven fan and having an axial air inlet and tangential air outlet 34, the device being supported by an arm 48 clamped to the casing and extending laterally with respect to the outlet and upwardly from the casing, the arm being arranged to suspend the device with the tangential outlet parallel to and adjacent the floor to be cleaned. During normal use, a handle 59 on the arm 48 is vertically above the centre of gravity of the device. The outer end of the air outlet may be of flexible material so as to be movable in response to air flow therethrough. A bar 42 on the air outlet dislodges litter stuck to the floor &c. A dust bag is secured over the outlet when the device is to be used as a vacuum cleaner.
Patent GB-860249-A (GB)
Title: Improvements in textile spinning and other machines
Inventor: SCOWCROFT HECTOR
IPC: D01H13/16
Filed: 1958-04-15
Abstract: 860,249. Stop motions for spinning or winding machines. T. M. M. (RESEARCH) Ltd. April 14, 1959 [April 15, 1958], No. 11970/58. Class 120(2) In a spinning or winding machine a conductor bar 14 is drilled at intervals to receive pivots 151, each carrying a wire feeler 15 which is normally supported by a strand 16 threaded through a loop 152 of the feeler so as to hold a shoe 17 on the pivot 151 out of contact with a contact bar 18, the machine being stopped when the strand tension slackens and causes the shoe to close a circuit through the bars 14, 18. A cover-plate 19 extends the length of the bar 14, which may be mounted on the roller beam of a spinning machine.
Patent GB-267069-A (GB)
Title: Improvements in and relating to driving gear for reciprocating engines
IPC: F16H1/22
Filed: 1926-05-07
Abstract: 267,069. Wach, H. March 8, 1926, [Convention date]. Motor power plant.-In a power transmission system in which a reciprocating engine crank shaft is coupled through gearing with another prime mover or load, the crank shaft or a prolongation thereof is mounted with substantial clearance within an independently supported hollow shaft of the gearing and keyed thereto at its farther end. As shown a pair of gear wheels are mounted on a hollow shaft d to which is keyed, at the farther end, an intermediate shaft member g forming a prolongation of the crank shaft. The hollow shaft d turns in bearings b, c and may have a thrust bearing k. A driving shaft f is connected with the hollow shaft d and is supported in a bearing i. The invention is applicable to a combined reciprocating engine and turbine power plant.
Patent GB-901306-A (GB)
Title: Steroid compounds
IPC: C07J7/00
Filed: 1959-04-09
Abstract: The invention comprises 16a  or 16b -(C1-5 alkyl) - 3a  - hydroxy-11,20-dioxo-21-pregnaneglyoxylic acid, 16a  or 16b -(C1-5 alkyl)-3a ,23-diacetoxy-21-normethyl-11-oxo-17(20), 22-choladieno-24(20)-lactone, 16a  or 16b -(C1-5 alkyl)-17(20) - epoxido - 21 - normethyl - 11 - oxo - 22-choleno-24(20)-lactone and a process which comprises reacting an alkyl oxalate with 3a -acyloxy-11,20-pregnane dione having attached to the 16-position an alkyl group to form an alkyl ester of 3-acyloxy-11,20-dioxo-21-pregnane glyoxylate having attached to the 16-position an alkyl group, hydrolysing the latter compound to form 3a -hydroxy-11,20-dioxo-21-pregnane glyoxylic acid having attached to the 16-position an alkyl group, reacting the latter compound with acyl anhydride in the presence of a strong acid catalyst to form an isomeric mixture of 3a ,23-diacyloxy-21-normethyl-11-oxo-17(20),22-choladieno-24(20) -lactone having attached to the 16-position an alkyl group, reacting the latter mixture with a peracid to form an isomeric p  mixture of 3a ,23-diacyloxy-17(20) - epoxido - 21 - normethyl - 11 - oxo - 22-choleno-24(20)-lactone having attached to the 16-position an alkyl group and hydrolysing the latter mixture to form 3a ,17a -dihydroxy-11,20-pregnane dione having attached to the 16-position an alkyl group.  Illustrative products of the invention are ethyl-3a -acetoxy-16a  and 16b  - methyl-11,20-dioxo-21-pregnane glyoxylate, 3a -hydroxy-16a  and 16b -methyl-11,20-dioxo-21-pregnane glyoxylic acid, 3,23 - diacetoxy-16a  and 16b -methyl-21-normethyl-11-oxo-17(20),22-choladieno-24(20) -lactone, 3a ,23-diacetoxy-17(20)-epoxido-16a  and 16b -methyl-21-normethyl-11-oxo-22-choleno-24(20)-lactone, and 3a ,17a -dihydroxy-16a  and 16b -11,20-dioxo-21-pregnane-glyoxylic acid.
Patent GB-1020043-A (GB)
Title: Cavity resonator apparatus
IPC: H01P7/06
Filed: 1963-03-27
Abstract: 1,020,043. Cavity resonators. VARIAN ASSOCIATES. March 27, 1963 [April 9, 1962], No. 12147/63. Heading H1W. A cavity for operation in the TE 0,1, n modes (n > o) has a hemispherical end wall and a further end wall which is other than symmetrical with the hemispherical wall about a diametral plane through its edges. Such a cavity has a high Q for TE 0,1, n modes and supports no other modes except the TM 1,1, n. These latter, however, are resonant at a frequency different from the resonant frequency of the desired modes. As shown in Fig. 2, the cavity comprises a hemispherical end wall 13, a short cylindrical side wall 12 and a further end wall 14 of ribbed planar form. Frequency adjustment is obtained by screwing the end wall 14 into the cylindrical wall 12 and locking with a ring 17. Waveguides may be coupled to the cavity through apertures 15, 16. If necessary, the cylindrical side wall 12 may be dispensed with. Additional suppression of undesired TM modes may be obtained by providing an annular gap 24, Fig. 2A, partly filled, if desired, with lossy material, between the end wall 14<SP>1</SP> and the side wall 12<SP>1</SP>. A modified method of tuning consists in laterally displacing the axes of the end walls from each other. For this purpose, the walls are respectively provided with interengaging, mutually-rotatable flanges, the flanges being provided with eccentrically arranged shoulders. In a further tuning method, the two axes are angularly displaced by means of interengaging, mutually-rotatable, tilted flanges. Small changes in resonant frequency may be produced by perturbations such as dents or screws extending into the cavity. The cavity may be temperature stabilized by making the side wall and the hemispherical wall out of a material having a low thermal coefficient of expansion and the flat end wall out of a material having a high coefficient.
Patent GB-310008-A (GB)
IPC: A01C7/02
Filed: 1929-04-19
Abstract: 310,008. Dohrn, (nÚe Viethsen), G. S. April 19, 1928, [Convention date]. Planting-tools, hand; forks.-A fork-like tool for transplanting a row of plants at a single step comprises a pair of prongs for piercing the earth with a prong along each side of the row and a prong or prongs for piercing it below the plants. In a tool with three prongs, two side prongs a, c are at the same level with a central prong b below them. The prongs are attached to a long or short handle f. In a tool with four prongs there are two prongs at each level. The prongs may be formed integral with a handle socket. They may be of round or square cross-section.
Patent GB-559859-A (GB)
Title: Improvements in dye compositions
IPC: C09B67/42
Filed: 1942-08-31
Abstract: 559,859. Dye compositions. BRITISH KAUMAGRAPH TRANSFERS, Ltd. Aug. 31, 1942, No. 12221. Convention date, Sept. 17, 1941. [Classes 2 (iii) and 15 (ii)] A dye composition, suitable for application under dry heat and pressure to the indelible marking of nylon or other fibrous materials, comprises a dyestuff, a fixing agent in the form of a non-resinous compound or compounds containing singly or collectively a phenolic and a carboxylic group, together with a resin and/or a wax. Specified dyes are Nigrosine base 2R, Methyl violet base, Rhodamine bases, Victoria blue base and Crystal violet and specified fixing agents are (a) a phenolcarboxylic acid, e.g. salicylic acid, (b) a phenol or a cresol together with a carboxylic acid, e.g. benzoic, acetic, mucic, sebacic or adipic acid. Specified resins are abietic acid, hydrogenated abietic acid, phenol-formaldehyde resins and terpene base resins and specified waxes are carnauba wax and candelilla wax. Plasticizers, e.g. an amyl or other alkyl phenol, and pigments may also be incorporated. In an example, the composition contains Methyl violet base, a hard phenol-formaldehyde resin, salicylic acid, carnauba wax and amyl or other alkyl phenol. Specifications 559,878 and 559,879 are referred to.
Patent GB-1205643-A (GB)
Title: Flexible couplings
Inventor: GOODY EDWARD WALTER
IPC: F16D3/79
Filed: 1967-03-15
Abstract: 1,205,643. Universal joints. TURBOFLEX Ltd. 14 March, 1968 [15 March, 1967], No. 12266/67. Heading F2U. In a flexible coupling comprising a resilient material link means 3 connected by bolts 6 to two components at points on a pitch circle coaxial with said components, the bolts 6 fast on one of the components carry a non-ferrous material element which is received in an opening 12 in a flange of the other component to provide a drive and prevent possible dangerous sparking in the event of link means failure. The non- ferrous elements may be brass, bronze or rubber sleeves or washers. The link means 3 may comprise individual links or may form a frame, and may be connected to each component by any number of bolts. As shown, a double coupling comprises a spacer 10 connected to two outer hubs 1 by two link frames 3. At each end of the spacer a square link frame 3 having a round or square central opening and comprising a number of thin metal laminations is connected at its corners to a pair of spacer arms 2 and a hub flange 11. Each corner connection comprises a bolt 6 passing through one of the arms 2 or the flange 11 and through a hollow rivet 5 which holds the laminations together. The bolts carried by the arms 2 carry metal-lined rubber sleeves 15 received in holes 12 in the flange 11. In Fig. 3 (not shown), the rubber sleeves 15 are a tight fit in the holes 12 so as to act as axial dampers and provide a flexible drive in the event of link failure.