baber/WOPTO huggingface dataset:
Patent GB-526641-A (GB)
Title: Improvements in and relating to vibrators of the magneto-striction type
IPC: G10K13/00
Filed: 1939-03-23
Abstract: 526,641. Magnetostrictive vibrators. FLO. RISSON, C. L., DUBRULLE, L., and SOC. DE CONDENSATION ET D'APPLICATIONS MECANIQUES. March 23, 1939, No. 9227. Convention date, March 23, 1938. [Class 40s(iv) In a magneto-strictive vibrator in which a circular diaphragm is connected to a tubular magneto-strictive member, the diameter of the piston relative to the mean diameter d of the tubular member is such that the circle of diameter d forms the " equimoment " line for the pressures exerted on the diaphragm on the surface within the circle of diameter d and on the annular surface between this circle and the circumference of the diaphragm. As shown in Fig. 1, the magneto-strictive member 1 of laminated form and provided with an axial slot 2 is surrounded by a magnetic body 5 formed of wires arranged vertically and held by transversely arranged hoops of non-conducting wire. The body S is enamelled or varnished and is shaped to provide narrow slots 8, 9 and to be spaced from the inner surface of the piston 3. The actuating coil 10 is wound to have minimum distributed capacity, successive turns being in different planes, and is spaced from the bar 1 by an annular member 37. The diaphragm 3 is connected to the member 1 by welding, soldering or brazing and in the case of a subaqueous vibrator, Fig. 5, the diaphragm forms a part of the wall 11 of a casing 16 from which it is insulated acoustically by a groove 12. The single groove may be replaced by a plurality of grooves, Fig. 4 (not shown), and in an alternative arrangement, Fig. 6 (not shown), the peripheral portion is clamped between fluid-tight rings mounted between a flange on the casing and a threaded ring. In a modified construction, Fig. 8, the outer magnetic member is formed by a second tubular magnetostrictive member 23 and the coil 28 is mounted between piles of thin metal rings 25, 26 which are slotted radially as indicated at 27. In a further modification, Fig. 9 (not shown), the coil is mounted on a magnetic member in the shape of a dumb-bell disposed within the magneto-strictive tube which is supported at its nodal plane in a casing. Diaphragms may be provided at each end of the magneto-strictive member, and a battery of vibrators may be mounted within a single casing having a cover plate divided to provide the requisite diaphragms.
Patent GB-720208-A (GB)
Title: An improved temple for weaving looms
Filed: 1952-04-10
Abstract: 720,208. Weaving loom temptes. DEWAS, R. April 10, 1952 [April 19, 1951], No. 9248/52. Class 142 (2). A temple of the trough and rollers type more particularly for shuttleless looms comprises a plate 6 having an opening 7 beneath the rollers. Part 6a of the plate facing the reed is of trapezoidal section, while part 6b facing the cloth beam is of varying thickness over its length and breadth and formed with lateral " saw tooth" ridges 9. The fore-table 6c connecting parts 6a, 6b may be suitably profiled and ridged. The upper parts of part 6b of the table is interchangeable to permit the alteration of its profile. A projection 12 and a finger 13 guide the edge of the cloth.
Patent GB-1244455-A (GB)
Title: Plate shears
Inventor: ARX PAUL VON
IPC: G02B21/00
Filed: 1970-02-26
Abstract: 1,244,455. Observation apparatus. P. VON ARX. Feb.26, 1970[Feb.26, 1969; Jan. 19, 1970], No. 9348/70. Heading G2J. [Also in Division B3] To enable an operator of plate shears to observe the cutting zone continuously from the feed side of the blades a source of light such as lamps 9 illuminates the material M in the zone between a movable blade 5 and a hold down 4, a mirror 10 is adjustably mounted on the shear frame and at the front of the frame there is a viewer tube 11 with a convex lens 12. By means of a vertical tensioned thread 13 or two vertically-spaced, horizontallytensioned threads, the operator can locate the cutting edge 5<SP>1</SP> of blade 5. Screens 7 and 8 are provided. In an alternative arrangement Fig. 2, (not shown) a lighting unit (15) comprises high power lamps (16) reflector (17) and a condenser lens (18). Light rays reflected from the material between hold down 4 and blade 5 are picked up by a biconvex lens (19) and projected via a mirror (20) on to a ground glass screen (21) in a light proof tube (22). In a further arrangement Fig. 3, (not shown) using the lighting unit (15), light reflected from the material M passes through a lens system (19<SP>1</SP>) to a mirror (20<SP>1</SP>) which deflects it on to mirror (20<SP>11</SP>) and thence to screen (21<SP>1</SP>). A prism may be substituted for the mirrors.
Patent GB-256894-A (GB)
Title: Improvements relating to the attachment of lateral mud guards for vehicles
IPC: B62D25/18
Filed: 1926-04-09
Abstract: 256,894. Hare, J. C. April 9, 1926. Lateral splash-guards.- Relates to lateral splashguards which are carried on an extension of a non- rotating wheel-axle projecting through the hub-cap. A packing ring to exclude dust, is located around the extension within the cap and is arranged between a flange on the axle and the cap. The nut 1 on the end of the axle is formed with an extension 3, a felt &c. packing ring 8 being located' between the end of the nut and the hub-cap 2. The extension is formed, externally to the hub-cap, with flats 4 which engage a slot 10 in a bar 9 carrying the guard. The bar 9, after adjustment on the extension, is secured thereto by a nut 5.
Patent GB-828899-A (GB)
Title: Improvements relating to the production of foam rubber
Inventor: NEWNHAM JOHN LEATHAM MATTHEW
IPC: C08J9/30
Filed: 1955-03-31
Abstract: A foamable heat-gellable vulcanizable compounded rubber latex contains as its essential foaming agent a surface active agent which is constituted by one or more acyclic organic compounds, and which in a 0,1% aqueous solution has a surface tension below 38 dynes per cm. and a cloud point not greater than 80 DEG C, e.g. a polyalkylene glycol in which one or both of the terminal hydroxyl groups have been etherified, such as a condensation product of propylene oxide and ethylene oxide, or a polyethylene-glycol alkyl ebler.  In an Example 100 parts by weight of a 60% concentrated natural rubber latex containing ammonia and vulcanizing and other ingredients is foamed with 0,5 parts of a non-ionic surface-active compound of the polyoxypropylene ethylene oxide condensate type.  2 parts of a gelling agent of the polyoxypropylene type, 3 parts of zinc oxide, and 1 part of a vulcanization acceleration are added, and the foam is gelled and vulcanized by steam heating in moulds.
Patent GB-417068-A (GB)
Title: Improvements in and relating to variable-ratio toothed gearing
IPC: G07F15/00
Filed: 1933-03-28
Abstract: 417,068. Variable - ratio gearing. FERRANTI, Ltd., and PRINCE, J., Hollinwood, Lancashire. March 28, 1933, No. 9373. [Class 80 (i).] Variable-ratio gearing comprises a wheel a which is continuously driven, a pin b on this wheel engaging a pin c on a wheel d which moves axially under the driving force by reason of the screw thread e. The wheel d drives a pinion k against the resistance of a spring n and the pinion k drives through a oneway device, such as a pawl r, a wheel q. For each revolution of the wheel a the drive is taken through the gears d and k until the pins band c disengage by reason of the axial movement of the wheel d and the spring n then returns the pinion k and wheel d to their original positions the operation being repeated when the pins band c engage again. The initial position of the wheel d is adjusted by the nut g to vary the amount of lost motion per revolution of the wheel a and therefore the ratio of the gearing.
Patent GB-585407-A (GB)
Title: Resistor bulb
IPC: H01C7/04
Filed: 1944-05-16
Abstract: 585,407. Temperature variable resistors. EDISON, Inc., T.A. May 16, 1944, No. 9374. Convention date, July 8, 1943. [Class 37] The resistor element of a resistance bulb (thermometer) extends lengthwise of its casing, has a cross-sectional shape such that a considerable portion of its surface is at a relatively substantial distance from the casing wall, and is secured to heat conducting means thermally associated therewith and adapted to contact the casing wall and slide against this wall on insertion or removal of the element from the casing. As shown the resistor element comprises a flat strip core 8 preferably of laminated mica on which the resistance wire 10 e.g. of pure nickel is wound under tension, so that it indents and becomes embedded in the edges of the core. A rivet 11 secures to the lower ends of the core laminations, preferably two in number, electrically insulating strips 26, e.g., of mica and resilient heat conducting members 25, e.g., of silver. The members 25 have a flat central portion 25a, and arcuate side fins 25b so dimensioned that when the resistance element is slid into the metal casing 6 the fins 25b are strained so that the members 25 resiliently hold the resistance strip in position Fig. 6 (not shown). The casing 6 is also made of high conductivity metal, e.g., stainless steel containing 18 per cent chromium and 8 per cent. nickel so that heat is readily conducted through the case 6 and metal members 25 to the resistance unit. The core 8 is secured at its top end to cylindrical plug 13 made, e.g. of " Isolantite " (Registered Trade Mark) by lugs 15a of two metal members 15 welded to the lower ends of terminal pins 14 glass-sealed into the plug 13. The lead 10a of the resistance wire 10 passes, between the laminations of core 8 and through a hole 17 to a lug 15b of one of the members 15. The other lead 10b passes through a hole 19 in the core 8, to a terminal 20, the usual adjusting coil 18 of glass fibre insulated wire of substantially zero resistance temperature coefficient, e.g. of constantin being connected in series with terminal 20 and the other member 15. The coil 18 may be bent to U form having its ends projecting through holes 22 in the core 8. The resistance unit is held within the casing 6, secured, e.g. by silver soldering to a base member 1, by a sleeve 23, soft metal washers 24 being interposed between the flange 13a on the plug 13 and the engaging surfaces of the base 1 and sleeve 23 to seal the bulb hermetically. The Specification gives dimensions and conductivities for the resistance wire 10, resilient members 25 and the casing 6. U.S.A. Specification 2,307,626 is referred to.
Patent GB-399216-A (GB)
Title: Improvements in or relating to telephone and like signalling systems
IPC: H04B3/20
Filed: 1932-04-01
Abstract: 399,216. Two-way transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Mathes, R. C. ; 171, Sagamore Road, Wyoming, New Jersey, U.S.A.) April 1, 1932, No. 9429. Convention date, April 25, 1931. [Class 40 (iv).] In a cable transmission system in which, on the arrival of speech at either terminal station, a courier current is transmitted to condition the circuits at the distant station for reception, the condition is maintained by a second control current of comparatively small amplitude which flows as long as the speech continues. The courier currents for the two directions of transmission comprise different single frequencies or bands of frepuencies f1, f3 which may be within or outside the speech range, while the control currents comprise different single frequencies or bands of frequencies f2, f4 which are preferably outside the speech range. In certain cases it may be advantageous' to employ combinations of frequencies. In the terminal station shown, speech in the path TA effects operation of relays 11, 12, 13 through an amplifier-rectifier 10. Relay 12 pulls up before relay 11 and courier current from a source 24 is applied to the cable in the interval, while relay 13 opens the receiving path RA. The application of speech currents to the cable is delayed for a suitable time t by the circuit 2. Further, after a time T + t (T being the transmission time of the cable) imposed by the circuit 14, relay 16 operates through an amplifier-rectifier 15 to open the control circuit 17. The control current from a source 25 flows as long as speech in the path TA continues. On the initiation of speech at the distant terminal station, courier current flows through a filter 18 passing the frequencies f3, f4 and effects operation of relays 20 .. 23 through an amplifier-rectifier 19, thus completing the receiving path RA and disabling the transmitting path TA and the control circuit 7, this condition being maintained by the control current. A delay circuit 5 is inserted in the path RA. The filters 1, 6 are designed to suppress the frequencies f3, f4. The relays may control the circuits by means of short-circuits or loss networks, or thermionic .relays may be employed in place of mechanical relays.
Patent GB-130113-A (GB)
Title: Improvements in Spray Nozzles.
Inventor: BINKS HARRY DEACON
IPC: B05B1/34
Filed: 1918-06-08
Abstract: 130,113. Binks, H. D. June 8, 1918. Nozzles for producing whirling sprays. - A spray having a tapered spray - producing chamber 1 is provided with a solid imperforate core 5 having vanes 6 on the exterior so shaped that it first subdivides the stream into different parts, then imparts variouslydirected motions to different portions of each of these parts, and then allows the streams to unite in the chamber 1. For this purpose, the vanes are provided with recesses 8, 9, Fig. 3, near the forward end and corresponding recesses 11, 12 at the backward end of the vanes. The tendency will thus be to produce on either side one non- rotating and two rotating jets of liquid, the commingling of which in the chamber 1 forms a spray.
Patent GB-550856-A (GB)
Title: Improvements in or relating to closure members for vacuum tubes
IPC: H01J5/40
Filed: 1941-07-25
Abstract: 550,856. Electron discharge tubes. BOSCH. F. I. G. VAN DEN, and VACUUM-SCIENCE PRODUCTS, Ltd. July 25, 1941, No. 9490. [Class 39 (i)] The end of the glass envelope of a vacuum tube is closed by a steatite or porcelain base 10 having a flange 11, to which a coating of a metal such as copper or platinum is applied to facilitate jointing to the envelope wall ; when the latter is of lead or soda glass the metal coating is treated with borax. The base is moulded (i) with projections 12 to receive electrode supports and (ii) around eyelets 13 for the leads. It is coated internally by shellac or a glaze 19 to make it vacuum tight. Such a closure may be used in electron multipliers, thermionic valves, cathode ray tubes, gas discharge apparatus and lamps.
Patent GB-735300-A (GB)
Title: Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof
Inventor: JONES DAVID GWYN
IPC: C07C1/207
Filed: 1952-04-16
Abstract: Aromatic hydrocarbons or substituted derivatives thereof are produced by continuously contacting benzoic acid or a substituted benzoic acid in vapour phase with a catalyst comprising one or more oxides of Cd, Cu, Zn, Cr and Fe at 320-450 DEG  C.  The substituted benzoic acid used may contain alkyl, halogen, amine, hydroxy, nitro or acyl groups.  Examples are salicyclic acid and p-bromo, o-amino-, p-nitro-, and o-benzoyl-benzoic acids. Preferred catalysts are cadmium oxide, cadmium, zinc, zinc-cadmium and zinc-iron chromites, copper oxide-zinc oxide, and cadmium oxide-zinc oxide.  The acid may be dissolved in an inert solvent such as the product of the reaction and the solution vaporized and fed at a rate of 1.55-20.8 mols. per hour per 1. of catalyst space.  An inert carrier gas such as nitrogen, hydrogen or carbon dioxide, which may be recycled exit gas, is generally used.  Pressure is suitably about atmospheric.  In examples (1) benzoic acid in toluene is vaporized and passed in a stream of nitrogen over cadmium oxide, zinc-iron chromite or cadmium chromite at 400 DEG  C.; (2) zinc-iron chromite is used to convert o-toluic acid to toluene, salicylic acid to phenol, o-amino- and p-nitro-benzoic acids to aniline, and p-brom-, o-chlor-, and o-benzoyl-benzoic acids to benzene.  The Provisional Specification refers to naphthoic acids and cinnamic acid as suitable starting materials.ALSO:Zinc-iron chromite catalyst having an atomic ratio Zn : Fe : Cr of 80 : 20 : 100 is made by treating with ammonia an aqueous solution of zinc nitrate, ferric nitrate and chromium trioxide, drying the precipitate, calcining at 350 DEG  C., granulating, and pelleting after adding graphite.  Before use it is reduced in hydrogen at 400 DEG  C.  Cadmium chromite, atomic ratio Cd : Cr of 1 : 1, is made by treating the aqueous nitrates with aqueous sodium bicarbonate, calcining the precipitate at 400 DEG  C., and pelleting with graphite.
Patent GB-804806-A (GB)
Title: Improvements in or relating to electrostatic coating installations
IPC: B05B5/08
Filed: 1956-10-31
Abstract: 804,806. Spray producers. GENERAL MOTORS CORPORATION. Oct. 31, 1956 [Nov. 3, 1955], No. 9534/58. Divided out of 804,805. Class 69 (3). An atomizer for an electrostatic coating installation in which liquid is atomized by a high-potential electrostatic field established between the atomizer and an oppositely charged article to be coated comprises a cylindrical inner member 12 within a cylindrical cavity in a spherical outer member 11, and an annular discharge passage 32, with oppositely sloping walls leading to a discharge orifice 30, is provided between the lips of the members 11 and 12. A stem 22 of the member 12 screws into a bore 24 so that the member can be axially adjusted to provide a variation in the width of the discharge orifice. Liquid is fed to a passage 38 and passes from an annulus 34 to the discharge passage 32, and is atomized at the sharp discharge edges of the orifice 30. A liquid seal 40 is provided. In order that the members may have relative rotation, the inner member has a ring gear 64 which meshes with a pinion 66 of a drive shaft 68. The stem of the inner member is in two parts joined by a split bearing 62. A gas manifold 52 surrounds the member 11 and a gas is fed thereto via a line 54, and flows from an annulus 56 in the form of a sheath which surrounds the issuing spray.
Patent GB-818826-A (GB)
Title: Method of processing hydrocarbon polymers
IPC: C08L23/22
Filed: 1957-03-25
Abstract: In a process for preparing a rubbery isoolefinic polymer at low temperature in the presence of a Friedel-Crafts catalyst in a nonaqueous diluent agglomeration of the polymer is avoided by mixing the slurry with an aqueous solution of 0.01 to 1 per cent by weight of an oxygenated hydrocarbon of the general formula A(O(CH2)x)yB, where A is hydrogen or an alkyl, aryl, aralkyl, alkaryl or an alkyl, aryl, aralkyl or alkaryl carboxyl radical containing 2 to 50 carbon atoms and B is a hydroxy radical or an acyloxy radical containing 2 to 50 carbon atoms and X and Y are integers between 2 and 50, and 4 and 30 respectively, and the rubbery polymer is then separated and dried. Polyisobutylene or copolymers of C4-C14 olefines with multi-olefines such as isoprene, butadiene, dimethallyl, myrcene and allo-ocymene and aromatic mono-olefinic compounds such as styrene, a - methylstyrene, p - methylstyrene, indene, p-chlorostyrene or dichloro styrene and divinyl benzene and mixtures thereof may be prepared and examples describe the polymerization of isobutylene, isobutylene-isoprene, and styrene-isobutylene.  Oxygenated hydrocarbons mentioned are mono-carboxylic fatty or rosin acid esters of polyethylene glycol, e.g. the condensation product of ethylene oxide and abietic acid; alkyl phenoxy polyoxyethylene glycols, e.g. the condensation product of nonyl phenol and ethylene oxides; and aliphatic polyoxyethylene ethers e.g. the condensation product of tridecyl alcohol and ethylene oxide and they may be retained in the polymer in amounts in the range 0.005 to 0.5 per cent of polymer.  An oxidation stabilizer such as n-lauroyl-paminophenol, ditertiary butyl p-cresol, phenyl b -naphthylamine or mixtures thereof may be added to the slurry, in an amount from 0.05 to 1.0 per cent based on the polymer.
Patent GB-631755-A (GB)
Title: Alkyl and di-alkylaminoalkyl and analogous pyridazones
IPC: C07D237/14
Filed: 1947-04-11
Abstract: 2-Alkylated pyridazones of the type Py.R where Py is pyridazone or substituted pyridazone, R is alkyl of 3-16 carbon atoms or an unsaturated hydrocarbon group, or of the type <FORM:0631755/IV (b)/1> where R1 is alkyl of the series CH3-C4H9 and n is 1-5, or of the type Py.(CH2)n.Py, where n is not greater than 12 and where the -(CH2)ngroup is attached to the 2-position of the pyridazone nucleus, are prepared by treating a 3-pyridazone or a 6-methyl-3-pyridazone with <FORM:0631755/IV (b)/2> where X is halogen, in the presence of sodium alkoxide and a solvent.  In the examples: (1) 6-methyl-3-pyridazone is refluxed with n-amyl bromide in methanolic sodium methoxide to give 2-amyl-6-methyl-3-pyridazone; (2, 3, 5 and 6) 2-heptyl-6-methyl, 2-allyl-6-methyl, 2 - lauryl - 6 - methyl and 2 - cetyl - 6 - methyl-3-pyridazone are similarly prepared; (4) 6-methyl-3-pyridazone is similarly reacted with diethylaminoethyl bromide to give 2-(diethylaminoethyl) - 6 - methyl - 3 - pyridazone; (7) 6-methyl-3-pyridazone is similarly treated with methylene dibromide to give di-(6-methylpyridaz - 3 - on - 2 - yl) - methane, and (8) di - (6 - methylpyridaz - 3 - on - 2 - yl) - ethane is similarly prepared.  3-Pyridazone may be employed in place of 6-methyl-3-pyridazone.
Patent GB-408330-A (GB)
Title: Improvements in vacuum electric tube devices or valves for use in particular gain control circuits
IPC: H03G1/04
Filed: 1932-07-04
Abstract: 408,330. Thermionic valves. ROBINSON, E. Y., Garvary, Dryden Road, Bush Hill Park, Enfield, Middlesex, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. July 4, 1932, Nos. 9747/34 and 9748/34. Divided on 408,256. Drawings to Specification. [Class 39 (i).] For use in the gain-control method and circuits described in Specification 408,256, a thermionic valve having a cathode surrounded by four or five successive grids and an anode is provided with means additional to the intervening grids for reducing the stray field between the input grid and the anode. The input grid is the first or third from the cathode in a fourgrid valve and the first or fourth in a five-grid valve. In each case, a further grid connected to the cathode may be inserted between the outer grid and the anode. To reduce the stray field, the lead-wires to the input grid and anode may lead out through remote parts of the bulb and screens or extensions may be provided on the screening or other intervening grid. The input grid next to the cathode and the gaincontrol grid are operated independently and may be non-uniform. When the valve is used as a frequency changer in supersonic heterodyne reception, reduction of stray field reduce the tendency to locking of circuits and radiation of the heterodyne signal. The details described are identical with those in Specification 408,256. Specifications 303,082, [Class 39 (i)], 380,429, 385,968, 407,317, and 408,328 also are referred to.
Patent GB-249337-A (GB)
Title: Improvements in spiked or toothed lags applicable for use in opening and feeding fibrous material
IPC: D01G9/06
Filed: 1925-04-16
Abstract: 249,337. Young, J., Young, R M., and Young, W., (trading as Young & Sons, J.). April 16, 1925. Openers, etc.; feeding openers &c. - Lags for application to the conveyers of hopper bale breakers, hopper feeders, &c. or to the cylinders of openers &c. are formed of a metal strip A, Fig. 1, with teeth a formed integral therewith and projecting in a forward direction. The teeth may be stamped or pressed out of the metal strip, or out of a blank, or may be forged or cast integral with a flat bar A, Fig. 10. Additional teeth a<1>, Fig. 5, may be formed on the rear edge of the strip and may be staggered in relation to the teeth a.