baber/WOPTO huggingface dataset:
Patent GB-913686-A (GB)
Title: Improvements relating to horn loud speakers
IPC: G10K11/02
Filed: 1958-12-29
Abstract: 913,686. Horns. BEYER, E. Dec. 29, 1958 [Dec. 27, 1957], No. 41949/58. Class 13. [Also in Group XXXIX] An exponential loud-speaker horn is formed over at least a part of its length by one or more plane walls 21, Figs. 3, 4, or 33, 34, Figs. 5, 6, and a portion 20 or 30 formed as a surface of revolution. The axis of the surface of revolution coincides with the plane wall 21 or with the intersection of the walls 33, 34. The plane walls extend beyond the mouth of the horn for at least a quarter of a wavelength at the lowest frequency the horn is designed to transmit. The transducer 10 may be electrodynamic, electromagnetic, electrostatic, piezo - electric, thermic or ionic. In one embodiment, Figs. 7, 9, the axes of horn portion 30 falls on the intersection of walls 33, 34. A horn portion L is offset to permit connection of the transducer 38. In Fig. 11, the horn 45 is re-entrant and has a horizontal axis. In Fig. 12, the reentrant horn 45 has a vertical axis. In Fig. 14 a guide member 72 deflects the woven into a horizontal pattern.
Patent GB-962352-A (GB)
Title: Control circuit for transmission lines
Inventor: RICHARDSON JOHN BERNARD
IPC: H04L5/16
Filed: 1961-11-24
Abstract: 962,352. Two-way transmission systems; telegraphy. PYE Ltd. Nov. 14, 1962 [Nov. 24, 1961], No. 42130/61. Headings H4P and H4R. In a circuit for controlling the transmission and reception of signals over a transmission line, a first transistor presents a high impedance to the line in the receive condition and applies the signals to the line in the transmit condition while a second transistor prevents the receiver amplifier from operating during the transmission of signals. As shown, incoming signals from the line L are fed to amplifier A over primary P and secondary S2 of a transformer and resistor R3. Cold cathode tubes V1, V2, V3 are cut-off and TR1 is therefore cut-off presenting a high impedance to the line, while TR2 is conducting so that the current through R2 applies a power supply voltage to amplifier A. When signals are to be transmitted one of the tubes V1, V2, V3 is fired. This applies a positive voltage to the emitter of TR1 and the base of TR2 so that TR1 conducts presenting a low impedance to the line, and TR2 is cut-off so that the power supply to amplifier A is removed. If V2 conducts, for example, TONE 1 is applied to the base of TR1 where it is amplified and applied to line L over winding S1. It is stated that the cold cathode tubes may be replaced by other electronic switches, for example triggered transistor types, and control of the amplifier may be effected by variation of the bias to the first stage.
Patent GB-422983-A (GB)
Abstract: 422,983. Reproducing lenticular picture films. OPTICOLOR AKT.-GES., Glarus, Switzerland. Jan. 8, 1934, No. 688. Convention date, July 5, 1933. Addition to 421,084. [Class 98 (ii)] The device of the parent Specification is modified by arranging the optical means for producing virtual images of the reproducing system at distances from the optical axis such that they project the virtual images of the system at places situated eccentrically to the corresponding filter zones. When plane mirrors are used as the optical means, these may be arranged at greater distances from the axis than the distances of the separating edges of the filter zones from the centre of the central zone, or may be arranged at different distances from the optical axis. To modify the image parts corresponding to different zones, neutral screens may be placed in front of one or both mirrors or, alternatively, the mirrors may be surface mirrors having different reflecting properties for different colours, e.g. mirrors plated with copper, silver, or gold. The Figure shows the arrangement in which the mirrors 5 .. 8 are at different distances from the axis of the objective 3, 4<1>1 and 4<11>1 being the positions of the images of the objective viewed from the film 1 in the mirrors 5 and 6 and 4<1>2, 4<11>2 the corresponding images viewed from the film 2 in the mirrors 7 and 8.
Patent GB-1129199-A (GB)
Title: Improved hydraulic turbine rotor
Inventor: SWIECICKI IGNACY
IPC: F03B15/18
Filed: 1967-09-18
Abstract: 1,129,199. Hydraulic turbines. ALLIS CHALMERS MFG. CO. Sept. 18, 1967 [March 17, 1967], No.42333/67. Heading F1T. A hydraulic turbine rotor comprising blades 7 pivotally mounted on a hub 6 and extending outwardly from it comprises a flap 8 pivotally connected to at least one of the blades, and an abutment 12 on the adjacent blade which is adapted to engage the flap when the blades are in the closed position so as to move the flap into a position in which it lies at an angle to the blade. In this position, the flap creates a drag on the rotor to prevent it from exceeding the synchronous speed of the generator device by the turbine under noload conditions.
Patent GB-1536650-A (GB)
Title: Infusion cannula assemblies
IPC: A61M25/06
Filed: 1977-10-11
Abstract: 1536650 Infusion cannula and puncture needle assembly VIGGO AB 11 Oct 1977 [26 Oct 1976] 42342/77 Heading A5R An infusion cannula and puncture needle assembly comprises a tubular adaptor 1, Fig. 5, having a flexible cannula tube 8 retained at one end and the head 11, Fig. 3, of a puncture needle unit releasably and partly accommodated at the other end 10. The puncture needle head 11 has a bore 13 communicating with an obliquely pointed needle 14 that projects through the adaptor 1 and cannula tube 8 to slightly beyond the latter. The head 11 is provided with diametrically opposed, flexible, finger grip wings 18 which can be urged against the adaptor during the puncturing operation in such a manner that the correct orientation and extension of the needle tip is ensured and relative rotation of the needle and cannula is prevented. The wings 18 may be caused to cam into position against an optional injection syringe connection port 4, Fig. 5, or against a frustoconical surface of the adaptor. Alternatively the wings and adaptor may be releasably secured by press stud engagement. Once assembled the head is moved forward to cause puncture whereafter it is withdrawn and an infusion tube fitted to the end 10 of the adaptor.
Patent GB-1057179-A (GB)
Title: Improvements in or relating to the connection of ferrules to pipes under pressure
Inventor: GLEDHILL ERIC GUY BRIAN
IPC: F16L41/06
Filed: 1964-10-16
Abstract: 1,057,179. Drilling under pressure. F. W. TALBOT & CO. Ltd. Oct. 15, 1965 [Oct. 16, 1964], No. 42434/64. Heading B3C. [Also in Division F2] A device for connecting the bore of a ferrule 8, attached to a pipe 10 under pressure, to the interior of the pipe, comprises a cylindrical casing 3, having a boss 7 adapted to be secured to the ferrule, and a cylindrical block 2 rotatably mounted in the casing, said block having a first chamber accommodating a boring tool 4 and a second chamber for housing a plug valve 5. The ferrule is clamped at 9 to the pipe 10 and the device secured to the ferrule. The block is rotated in the casing until the boring tool is coaxially arranged above the ferrule. The hollow cutter 13 of the tool is then screwed down by rotation of its threaded shaft 15 on to the pipe wall and further rotated to bore a hole therein, the use of a hollow cutter permitting the retention of the cut-out disc on subsequent withdrawal of the tool. The block is then rotated in the casing until the plug valve is axially aligned over the bored hole, the axes of the boring tool and the plug being arranged on a common diameter of the block. The plug valve is screwed down into the ferrule and on to a seat 24 therein by rotation of a square-bored bush 16 threaded to the block and coupled to the plug by a corresponding square section key 18. A compensating device, comprising a spring 22 interposed between the key and the bush endcap 20, allows axial movement of the key relative to the ferrule necessary to bring the leads of their respective threads coincident is not prevented by the axial travel of the bush inherent on rotation of the bush necessary to screw the plug into the ferrule. In a modification, Fig. 2 (not shown), the plug is formed with an integral spindle 30 which terminates in a square-section end 31 for connection to a shortened key 32.
Patent GB-1010725-A (GB)
Title: Cutting tool
IPC: B23C5/24
Filed: 1964-10-21
Abstract: 1,010,725. Milling-cutters. O.K. TOOL CO. Inc. Oct. 21, 1964 [Dec. 18, 1963], No. 42901/64. Heading B3K. A milling-cutter comprises a tapered slot in a body for an inserted blade 6, the slot having an inner portion 5 of less inclination but such that the whole recess may be cut by a milling- cutter of the cross-section of the slot. The blade and slot are serrated to prevent axial movement.
Patent GB-1325059-A (GB)
Title: Method for inhibiting metal oxide growth
IPC: C01G23/07
Filed: 1970-09-09
Abstract: 1325059 Vapour phase oxidation PPG INDUSTRIES Inc 9 Sept 1970 [10 Sept 1969] 43060/70 Headings C1A and C1N In a process for making a pigmentary oxide by vapour phase oxidation of the corresponding halide, the reactants are introduced through an inlet nozzle which is vibrated to prevent deposition of oxide. The nozzle may vibrate continuously or intermittently, e.g. for 5-45 sees. per minute, and may have a vibration frequency of 800-8000 cycles/min. It may comprise 3 concentric tubes, fed with, e.g., O 2 , Cl 2  and TiCl 4 , respectively. Preferably TiO 2  is produced from TiCl 4 , TiBr 4  or TiI 4 . The oxidizing gas may be O 2 , air, O 2 -enriched air, or O 2  mixed with the combustion products of, e.g., C or CO. The inert gas may be Cl 2 , N 2 , CO 2 , He or Ne. Other products mentioned are Fe, Si, Al, Zr, As, Be, B, P, Sr, Ta, Th, Sn, Zn, Sb, Pb, and Hg oxides.
Patent GB-874868-A (GB)
Title: Process for preparing esters of epoxidized hydrocarbon drying oils, and resulting products
IPC: C08G59/16
Filed: 1959-12-21
Abstract: A hydrocarbon copolymer drying oil, prepared by sodium polymerization of 60%-90% of a 4-6 carbon conjugated diolefin with 40%-10% of styrene or a methyl or ethyl ring-alkylated homologue, and then epoxidized to an oxirane oxygen content of at least 0,25%, is reacted with a monocarboxylic hydrocarbyl acid of 7-20 carbon atoms under esterifying conditions (a) with enough acid to give a range of 1-2 mols acid per mol oxirane oxygen in the oil and (b) until an acid number below 40 is reached, the acid being selected from the group consisting of straight chain aliphatic acids of 8-20 carbon atoms, unsubstituted aromatic acids containing at least 7 carbon atoms, and alkyl substituted derivatives of these acids, rosin acids, and mixtures thereof. It is preferred that the oxirane oxygen content is from 1%-8% and the acid number is reduced to below 12.
Patent GB-923932-A (GB)
Title: Improvements in or relating to billet inspection apparatus
IPC: G01V3/04
Filed: 1959-12-22
Abstract: In a magnetic testing system (see Group XXXVI), a billet 189 arrives at a processing position where it is magnetized by the passage of a heavy current through it and is coated with magnetic particles suspended in a fluid applied by an applicator 108.  At the same time or slightly later, a valve is opened to supply inspection fluid to pipe 105, having perforations 106, so that the inspection fluid can flow down an inclined plane 107 on to billet 189.  An air cylinder 111 is provided so that surplus inspection fluid in pipe 105 can be drained into a trough 115 and via ports 115a and a screen 121 into a reservoir 122 from which it may be pumped via a pipe 123 back to pipe 105.  Air cylinder 111 also moves a shield 110 out of the path of movement of billet 189. <PICT:0923932/III/1>
Patent GB-1087226-A (GB)
Title: Tensiometers
Inventor: GREENWOOD DAVID
IPC: G01L5/04
Filed: 1963-11-05
Abstract: 1,087,226. Measuring tension electrically. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan.21, 1965 [Nov.5, 1963], No. 43566/63. Headings G1N and G1W. A tensiometer comprises a material engaging member 15 arranged to extend tranversely across the material, resilient means supporting the member and allowing movement of the member in a plane perpendicular to the surface of the material and means associated with the member 15 responsive to movement of the member 15 to indicate and or control tension in the material. As shown in Fig. 1, the guide bar 15 is suspended from a support bar 16 by a spring 17 and movement of the material dependent on the tension, is indicated on a dial gauge 19. In an alternative embodiment (see Fig.4 not shown) the material is engaged by a bar 35 supported on rubber bushtype springs 36 through link 37 and shaft 38. In the first embodiment, the dial gauge may be replaced by an electrical transducer, the output signal of which is either used to actuate a stop motion or control the motor speed. In the second embodiment, electrical strain gauges, incorporated in a Wheatstone bridge circuit, are provided on the torsion bar.
Patent GB-995793-A (GB)
IPC: C09B62/36
Filed: 1962-02-07
Abstract: The invention comprises dyes of formula <FORM:0995793/C4-C5/1> wherein F is the radical of a coupling component and W is an azo bridge member or F is the radical of a metal-free mono- or dis-azo dye and W is an azo, ureido or -NHOCCH2N(CH3)CO-bridge member, X is a hydrogen atom or an alkyl radical, m is 1 or 2 and n is 1, 2 or 3. The dyes may be prepared by reacting a mono- or dis-azo dye or a diazo or coupling component containing an acylatable amino or amide group with a 2,3-dichloroquinoxaline containing in the benzene ring a group such as an isocyanate group which forms the bridge W and completing the formation of an azo dye by the coupling reaction if necessary.  Alternatively a 2,3-dichloroquinoxaline containing an -NH2 group in the benzene ring may be diazotized and coupled with an azo component.  The dyes may be used to colour hydroxyl and amide group-containing materials, particularly cellulose, by the usual reactive dye processes.  The preparation of mono- and dis-azo dyes is described in examples.  Specification 995,796 also is referred to.
Patent GB-879639-A (GB)
Title: Improvements in and relating to roofings
Inventor: HOYAS AIME
IPC: E04D3/366
Filed: 1959-12-31
Abstract: 879,639. Roofing. UNION DES LAMINEURS BELGES DE ZINC. Dec. 31, 1959, No. 44366/59. Addition to 844,080. Class 20(4) Roofing comprises adjacent metal, e.g. zinc sheets overlapping or mutually spaced along their adjacent edges, along which edges there is adhesively applied a sealing strip comprising an elastic, e.g. synthetic rubber band coated on one side with adhesive over which, along the central portion of the band, a substance such as a strip of polyethylene is applied to render the central portion of the band non-adhesive, whereby the band will not adhere to the extreme edges of the sheets thereby permitting their free movement as the sheets expand. Where one sealing strip crosses above another, the adhesive is left uncovered for the whole width of the band.
Patent GB-1260343-A (GB)
Title: Process and apparatus for producing glass
IPC: C03B5/20
Filed: 1969-09-09
Abstract: 1,260,343. Glass melting furnace. P.P.G. INDUSTRIES Inc. 9 Sept., 1969 [10 Sept., 1968], No. 44508/69. Heading F4B. [Also in Division C1] A glass melting tank heated by side positioned burners 19 has a cooled skimmer 24 extending at an angle to the side walls of the tank which serves to deflect surface scum and foam towards one or both of side positioned skim kilns 20. The skimmer 24 may be V-shaped in plan and comprise two U-shaped refractory metal pipes, one extending from each side wall, cooling water passing into an upper arm of the U and emerging from the lower arm which in use is immersed in the molten glass. In use, a mass of glass will solidify around the skimmers. Each skim kiln 20 has an aperture 32 in its wall through which the surface material flows into a drain 36. In a modification (Fig. 3, not shown) the skimmer is constructed of two concentric tubes the cooling water being introduced along the central pipe and discharged through the outer jacket.
Patent GB-1102625-A (GB)
Title: Stabilisation and guidance device for sounding rockets and rocket-propelled ballistic vehicles
Inventor: FERAUD ROGER ADRIEN
IPC: F41G7/36
Filed: 1965-10-21
Abstract: 1,102,625. Controlling rocket propelled missiles. SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. 21 Oct., 1965 [22 Oct., 1964], No. 44580/65. Heading B7G. A sounding rocket is propelled by liquid propellant and oxidant forced into a rocket motor from tanks (2, 3, Fig. 1, not shown) by gas pressure, e.g. from a gas reservoir (4). During powered flight the attitude of the rocket in pitch and yaw is controlled by propellant or oxidant forced by gas pressure through inwardly directed nozzles 10, 11 in the walls of the jet pipe 9, thus deflecting the propulsive jet. Roll control is effected by supplying gas from the reservoir (4) to tangentially directed nozzles 12 outside the rocket. During unpowered flight, roll, pitch and yaw control are all effected by externally directed nozzles supplied with gas from the reservoir, and different roll control nozzles, smaller than those for powered flight are used. The changeover to these nozzles is made either by a timer set to the duration of the powered flight, or by a pressure switch responsive to combustion chamber pressure. The attitude is controlled by gyroscopes 13 and rate gyros 15 and by an attitude reference 17, the signals from which are summed and used to control valves such as 19.
Patent GB-1208358-A (GB)
Title: Blower wheels and a method of making them
IPC: F04D29/28
Filed: 1968-09-23
Abstract: 1,208,358. Stamping; making compressors. TORIN CORP. 23 Sept., 1968 [30 Oct., 1967], 45009/68. Headings B3A and B3Q. [Also in Division F1] A method of making a blower wheel comprises the steps of providing a rotatable support member (a disc 14a, Fig. 7) having a circumferentially spaced series of blade-holding means (slots 22a) for securing blades 12a against displacement in one radial direction, providing blades equal in number to the blade-holding means and each having a generally axially disposed portion including a radially exposed side edge 40a, engaging the axially disposed portion of each blade with one of the blade holding means with the side edge exposed in a direction generally opposite the said one radial direction, positioning an annular member (a band 18a) adjacent the exposed side edges, and applying force to the entire peripheral surface of the annular member in a direction to deform the interblade portions of the annular member to bring the annular member into engagement with each exposed side edge. End discs 14a of the blower wheel, preferably connected temporarily by a shaft 68, are supported in a semicylindrical recess 60 of a jig 50 and are turned in the direction of the arrow to bring successive pairs of slots 22a into alignment with a surface 62, when a blade 12a is then transferred from the surface into the pair of slots. When all the blades are in place the blower wheel is moved to the right to bring the discs 14a into alignment with respective bands 18a which are held in grooves 64, 64a in lower and upper parts 52, 54 of the jig (the upper part being in its closed position), and tools 66, 66a are moved radially inwardly to crimp each band at one or more places. After the upper part 54 has been opened again, the blower wheel is removed to permit the bands 18a to be fully deformed magnetically, Fig. 9 (not shown), or by use of the fixture shown in Fig. 10 in which a ram 92 compresses a ring 90 of, e.g., rubber to deform each band 18b as shown in Fig. 11. A positioner 94 moves the blower wheel upwardly to bring each band 18b in succession into position within the ring 90. Switches 98 in the path of the positioner 94 may be provided to control the positioning in conjunction with cycle timers in a circuit 99.
Patent GB-1527127-A (GB)
Title: Elbow joint for pipe-type gas-pressure cables
IPC: B32B5/32
Filed: 1975-10-31
Abstract: 1527127 Electrical couplings BCC BROWN BOVERI & CO Ltd 31 Oct 1975 [10 Jan 1975] 45157/75 Heading H2E A jointing member for interconnecting non- colinear three phase pipe type gas pressure cables 1, 2 whose conductors 4, 5, 6 and 4<SP>1</SP>, 5<SP>1</SP>, 6<SP>1</SP> form apices of triangles, comprises an enclosure 3 formed by a sphere with branches 3a, 3b projecting therefrom for connection to the cables and within the enclosure, three curved conductors 4<SP>11</SP>, 5<SP>11</SP>, 6<SP>11</SP> for connection to the cable conductors. The curved conductors are, in the embodiment, supported from the enclosure by insulators 7 and are connected at their ends to the conductors of the cables, the axes of which latter are at 90 degrees. The pipes of the cables are welded to the branches 3a, 3b in a gas tight manner to prevent leakage of the SF 6  gas contained therein.
Patent GB-1356538-A (GB)
Title: Rivet
IPC: F16B19/10
Filed: 1972-10-02
Abstract: 1356538 Rivets J TAKAHASHI 2 Oct 1972 45295/72 Heading F2H A two part rivet comprises a sleeve 12<SP>1</SP> having longitudinal slits thereby allowing splaying of legs 151 by a pin 101 whose head 17<SP>1</SP> is provided with an annular recess 19<SP>1</SP> of the same size and shape as that of the sleeve head 13<SP>1</SP> which it closely receives. The pin shank may be provided with a circumferential groove to lock the pin in position.
Patent GB-1241183-A (GB)
Title: Diverter valve construction
Inventor: GENBAUFFE FRANCIS SIMON
IPC: F16K31/68
Filed: 1968-09-24
Abstract: 1,241,183. Burner controls. ROBERTSHAW CONTROLS CO. 25 Sept., 1968 [26 Sept., 1967], No. 45602/68. Heading F4T. In a diverter valve assembly 10 with fuel outlets 16 and 18 for a bake burner 17 and a broil burner 19, when a control 12 is turned from " bake " to " boil," in addition to fuel being supplied to an inlet 15 a pilot burner 21 is ignited and a flame sensor 66 thereat causes a lever 38 to pivot at 46, 47 on a plate 48 in the valve housing 10 from its rest position, Fig. 1, when a valve 25, 26 supplies fuel to the bake burner, and a similar valve 27, 28 for the broil burner is shut, through a position with both valves shut and then to a position where only valve 27, 28 is open, Figs. 3 and 4 (not shown). Each valve closure member 26, 28 is urged to close by a spring 36, 37 respectively, acting between the housing and a shoulder end of the stem 30 of each closure member. The end of the lever 38 remote from the pivot is bifurcated and engages the stems 30 of the closure members so that when the lever pivots there is lost motion the closure of one valve and the opening of the other. A spring 58 between tangs on the lever 38 and the plate 48 biases the lever to its rest position and is disposed to give an " over dead centre" operation, wherein the valves close slowly but open with a snap action. The effective pivotal point of the lever is adjusted by a screw 55 in the housing bearing on a tang 53 of plate 48. The flame sensor is a fluid containing bulb serving when heated to displace a wall 67 carrying a ball 69 which bears on a flat end portion 41 of the lever 38 to the right of the pivot 46, 47 as seen in Fig. 1. The valve members are guided in the housing by guide stems 34 having free ball ends 33 to allow rocking and permit seating of the valve member.