baber/WOPTO huggingface dataset:
Patent GB-265181-A (GB)
Title: Improvements in ultra-audible piezo-electric projectors
IPC: B06B1/06
Filed: 1927-01-19
Abstract: 265,181. Langevin, P. Jan. 27, 1926, [Convention date]. Piezo-electro units.-Piezo-electric devices for producing ultra-audible vibrations as described in Specification 145,691, [Class 40 (iv), Telephones &c.], are designed to have a high power factor by suitably choosing the thicknesses of the crystal plate and the metallic coatings. Such dimensions may undesirably reduce the capacity of the condenser formed by the crystal and its coatings and, for this reason, a number of crystal plates b, Fig. 1, separated by thin metallic plates c. may be employed, the direction of the piezoelectric axis varying by 180‹ between one plate and the next. In another construction, the outer metallic plate a<2> may have a thickness equal to an odd multiple of a quarter wave-length of the vibrations in the metal. An increase in the power factor may also be obtained by disposing between the outer plate a<2> and the surrounding medium a quarter-wave plate a<3>, Fig. 13, of a material, such as a light organic liquid or a gas under pressure, for which the product of density and speed of propagations is less than for the external medium. A further external metallic plate a<4> completes the structure. Elastic continuity between the crystal and metal plates is obtained by the interposition of a solid or pasty cement or a layer of insulating liquid. Specification 125,122, [Class 40 (iv), Telephones &c.], also is referred to.
Patent GB-505286-A (GB)
Title: Improvements in and relating to vehicle-actuated means for operating doors or gates
IPC: E05F13/02
Filed: 1938-01-18
Abstract: 505,286. Door &c. operating-appliances. AUSTIN, W. Jan. 18, 1938, No. 1658. [Class 65(i)] In a vehicle-actuated apparatus for operating gates &c. having an actuating member adapted to be pulled or pushed by the vehicle in the direction of travel and connected to the gate-operating mechanism, the actuating member consists of a longitudinally slidable horizontal bar 21 carrying a vertical arm 22 for engagement by the vehicle, and sliding in two guide tubes 31, 33 which limit the movement of the bar by engaging the arm 22. The distance of the arm 22 from the ends of the bar is greater than the total travel of the arm, so that neither end of the bar can emerge from its tube. The bar is guided in the tubes by a channel member 28, 29, and is connected at its ends to ropes 25, 26 one for opening, the other for closing the gates. The rope 26 passes round an adjustable fixed pulley 27 and through a tube 30 arranged under the bar 21. Two sets of the above apparatus may be combined, one being outside, the other inside the gates. When used for operating sliding doors, roller type flexible shutters, and lazy-tongs gates, the ropes are passed round suitably arranged pulleys.
Patent GB-1169568-A (GB)
Title: Manual Control Device for Road Motor Vehicles
Inventor: LEWTHWAITE ROY WILLIAM
IPC: B60W30/18
Filed: 1967-01-12
Abstract: 1,169,568. Motor vehicle controls. R. W. LEWTHWAITE. 16 April 1968 [12 Jan., 1967], No. 1678/67. Heading B7H. Motor vehicle controls for manual actuation by a disabled driver include a hand control member positioned adjacent the steering wheel and coupled to the brake and accelerator pedals through means including lost motion connections, downward movement of the member depressing the brake pedal and upward movement depressing the accelerator pedal, each without influencing the other of the two pedals. The manual control member comprises an arm 16 which has a curved end portion extending beneath the steering wheel rim and is pivotally mounted by a spindle 15 on a bracket 11 clamped to the steering column 7. A tubular thrust rod 19 linking the arm 16 and brake pedal 23 is pivotally connected at its lower end to an attachment 24 on the brake pedal arm 22 and at its upper end to the arm 16 through a screwed adjuster which fits loosely in the end of the rod to provide the requisite lost motion. A flexible cable 31 extends between the arm 16 and a member 44 connected by a clamp 43 to a rod 38 in the accelerator pedal linkage 32. The bracket 11 is extended to form a panel 12 for mounting headlamp flasher and dip switches 13, 14. Actuation of the steering wheel 6 may be facilitated by a knob 47 on the wheel rim, and a detachable extension member 17 may be fitted to the arm 16 for use by an instructor during driver training. If the vehicle includes a pedal-actuated clutch, an additional control lever operable by one finger may be arranged to control a servo device for actuating the clutch.
Patent GB-177626-A (GB)
Title: Improvements in rollers and cylinders for printing machines
IPC: B41F13/18
Filed: 1921-01-12
Abstract: 177,626. Rawsthorne, J. T. Jan. 12, 1921. Addition to 119,503. Rollers.-An engraved metal printing roller or cylinder for calico and other printing machines is constructed with a sleeve or ring of strips C of rubber interposed between the shell B and the mandrel A to form a buffer. The sleeve is preferably vulcanized to the mandrel, which with a keyway prevents creeping. The mandrel may taper slightly from one end to the other or from the centre to both ends. A number of rings, with or without distance-guides or longitudinal strips applied to grooves in the mandrel,. may be used instead of the continuous sleeve.
Patent GB-691053-A (GB)
Title: Improvements in or relating to the stabilization against rapid gelation of acidic, aqueous, colloidal solutions of partially polymerized unalkylated and alkylated melamine-formaldehyde condensation products
IPC: C08G12/38
Filed: 1950-01-24
Abstract: An acidic, aqueous, colloidal solution of partially polymerized unalkylated or alkylated melamine-formaldehyde condensation product or partially polymerized melamine-urea-formaldehyde co-condensation product initially containing between 12 and 40 per cent by weight of the condensation product is stabilized against gelation by adding thereto urea or thiourea in amount in excess of that required to combine with any free formaldehyde present in the solution.  The solution gradually liberates formaldehyde and the period of stabilization depends upon the quantity of urea or thiourea added. From 5 to 50 per cent, preferably 20-40 per cent by weight, of the initial solution of urea or thiourea is added.  To reduce the quantity of acid required and to assist the stabilization and prevent the formation of cloudiness a polyhydric alcohol may be added e.g. from 5-50 per cent, preferably 10-40 per cent, by weight of the total solution may be added.  Alcohols specified are ethylene, propylene and butylene glycols, amyl and diethyl glycerol, pentitol and mannitol.  Alternatively aromatic polyhydric compounds such as resorcinol, orcinol and tetra-hydroxy-benzene may be used.  The acid present may vary from 2-3 per cent by weight of the entire solution. The condensation products may be prepared as described in Specifications 623,355 and 623,361.  A large number of examples are given of colloidal solutions of various condensation products stabilized to various extents and gel times of various unstabilized solutions are also given. Specification 623,362 also is referred to.
Patent GB-468571-A (GB)
Title: Improvements in and relating to windows
IPC: E06B7/26
Filed: 1936-01-21
Abstract: 468,571. Weather-excluding means for fanlights. AYNSCOUGH, F. R. Jan. 21, 1936, No. 1923. [Class 20 (iii)] An outwardly opening transome light 1 hinged along its top front edge is provided with a rib 13 along the rear of its upper edge which engages in a correspondingly shaped recess 14 in the underside of the head rail 5 of the window frame, and a lip 2 is formed around its periphery which bears against the outer face of the frame or engages in a rabbet formed therein Weather grooves 6 are formed in the top and side frame members of the light and a space is provided betweer the lower rail 10 of the light and the transome 8 for the reception of any water which may be driven past the lip 2, while weather beads 24 with grooves 25 in their undersurfaces are formed separate from or integral with the head rail 5 and transome 8 According to the Provisional Specification, the co-operating rib and recess may be provided at one side of the sash and frames of a window hinged at the side.
Patent GB-1089652-A (GB)
Title: Improvements in or relating to ammunition igniters
IPC: F42C19/08
Filed: 1966-01-14
Abstract: 1,089,652. Cartridge primers. DYNAMIT NOBEL A.G. Jan. 14, 1966 [Jan. 15, 1965], No. 1961/66. Heading F3A. A cartridge primer 4 is held in the base of cartridge case 1 by a cap 10 which bears against a rim 5 of the primer and has a flange 11 secured against the cartridge base by a lip 12, which may be formed by cold-working. The primer may be inserted in a threaded sleeve,. which in turn is screwed into the cartridge case before attaching the cap 10 By varying. the thickness of the cap 10, the ignition sensitivity of the primer may be varied. The primer 4 is aligned with   a<SP> </SP>flash passage 3 which, may contain a booster charge. Lacquer may be applied to-flange 11 to provide a moisture-tight closure;
Patent GB-130377-A (GB)
Title: Improvements in Lubricating Oils.
Inventor: WELLS HENRY MATTHEW
Filed: 1918-02-05
Abstract: 130,377. Wells, H. M., and Southcombe, J. E. Feb. 5, 1918. Lubricants for machinery.-Lubricating-oils are prepared by adding to a hydrocarbon lubricating- oil a minute amount, e.g. 1-2 per cent, of a substance other than soap which lowers the interfacial tension between oil and water. Where it is desired to prevent the product from forming an emulsion with water, acids of lower molecular weight, such as butyric or other volatile fatty acids, cinnamic acid, or water-soluble naphthenic acids, are added to the mineral lubricating-oil. A product which is emulsifiable with water and suitable for marine-engine lubrication, is obtained by the use of higher fatty acids, such as those obtained from rape oil, wool grease, or whale oil. Olein and other commercial fatty acids are preferably employed, the products so obtained being very similar to those obtained by compounding the corresponding animal and vegetable oils with mineral oils. The hydrocarbon oil may be derived from petroleum, coal, coal-tar, shale, colophony, etc.; petroleum jelly is also used.
Patent GB-723331-A (GB)
Title: Improvements in or relating to pulse generating circuits
Inventor: WELLS FRANK HERBERT
IPC: H03K3/10
Filed: 1952-01-25
Abstract: 723,331. Pulse-generating circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION, and HOWELLS, G.A. April 27, 1953 [Jan. 25, 1952], No. 2085/52. Class 40 (6). A pulse generator comprising a multi-grid secondary-emission valve having a trigger input applied to the control grid, feedback from anode to cathode, means for permitting substantial grid current flow and an output pulse derived from the dynode. The Figure shows a pulse generator comprising a secondary-emission valve V in which the valve is rendered conductive by a positive triggering pulse applied to the control grid at input TRIGGER. The resulting fall in anode potential is fed back to the cathode so that considerable grid current flows via germanium rectifier XR, the negative pulse at the anode is also transmitted down the delay line DL where it is reflected from the short-circuited distant end with reverse polarity. The resultant positive pulse at the anode is fed back to the cathode to cut-off the valve and complete the cycle. The change in dynode current flow during the cycle produces an output pulse across the dynode load resistor R5 at terminal OUT.
Patent GB-1480654-A (GB)
Title: Outpulser arrangement for telephone subset
IPC: H04M1/31
Filed: 1975-01-17
Abstract: 1480654 Impulse transmitter STANDARD TELEPHONES & CABLES Ltd 17 Jan 1975 2089/75 Heading H4K The conventional full wave rectifier bridge connected between a line and a substation includes SCR's in two of its arms for the purpose of transmitting D.C. impulses over the line. In response to depression of a button on a subscriber's key set, a control circuit produces a voltage signal in respect of every impulse of the required train, which signal is applied to the anode or cathode of that SCR D3 or D4 which is conductive, in such a manner as to turn it off. At the end of each impulse the control circuit applies a signal to the gate of the relevant SCR in order to turn it back on. The SCR thus follows the signals in order to break and make the loop in the required manner.
Patent GB-574699-A (GB)
Title: Improvements in and relating to electrical contacts and method of making the same
IPC: H01H1/0233
Filed: 1944-02-05
Abstract: 574,699. Contacts. MALLORY META LLURGICAL PRODUCTS, Ltd. Feb. 5, 1914, No. 2144. Convention date, Feb. 5, 1943. [Class 38 (v)] An electrical contact consisting of a mixture of a refractory constituent and a more fusible constituent is treated chemically so as to remove the latter from the contact face so as to leave a face consisting substantially entirely of the refractory constituent. The refractory constituent may be tungsten, molybdenum, or the carbide of these metals, iron nickel or cobalt or the carbides, borides and nitrides of the 4th, 5th and 6th groups of the Periodic Classification, or cadmium oxide and the more fusible constituent may be silver, copper or an alloy of silver or copper. The mixture of the refractory and fusible constituents, after treatment by sintering, &c., is subjected to an etching solution which may consist of sulphuric acid and potassium dichromate or nitric acid when the fusible constituent is silver or of hydrogen peroxide and ammonium hydroxide when the fusible constituent is copper.
Patent GB-524109-A (GB)
Title: Improvements in and relating to transmission systems for automobiles
Filed: 1939-01-23
Abstract: 524,109. Motor-vehicle driving-gear. PORSCHE, F. Jan. 23, 1939, No. 2239. Convention date, Feb. 19, 1938. [Class 79 (ii)] The driving wheels 1, 1<SP>1</SP> of a vehicle are driven without differential gear through clutches 2, 2<SP>1</SP>, the inner wheel on a curve being automatically de-clutched by the centrifugal force acting on the vehicle. The shaft 4 is mounted in bearings 10 in the chassis so as to be prevented from axial movement relatively thereto and is driven through gearing 5. The driving clutch members 3, 3<SP>1</SP> are slidably splined on the shaft and are controlled by springs 9, 9<SP>1</SP>. The driven clutch members 2, 2<SP>1</SP> are secured to the road wheels and are slidably and rotatably mounted on the clutch members 3, 3<SP>1</SP> under the control of springs 7, 7<SP>1</SP> weaker than the springs 9, 9<SP>1</SP>. Normally both clutches are engaged but when the vehicle is rounding a curve to the right (say) the chassis and the shaft 4 move bodily to the left, the inner or right-hand clutch is disengaged and the outer clutch is more firmly engaged to correspond with the greater load thereon. The clutches may be cone or single or multiple plate clutches, and the invention may be applied to independently-sprung driving wheels.
Patent GB-839507-A (GB)
Title: Improvements relating to hypodermic equipment
Inventor: EVERETT SAMUEL JAMES
IPC: B29C65/00
Filed: 1958-01-23
Abstract: 839,507. Hypodermic needles. EVERETT & CO. Ltd., S. & R. J. Jan. 21, 1959 [Jan. 23, 1958], No. 2337/58. Class 81 (2). [Also in Group XXVIII] A hypodermic needle 5 is joined to a thermoplastic tube 6 by holding the ends of the needle and tube in engagement on an internal mandrel 7 and moulding a synthetic plastic connector-piece 14 round the joint, the tube being deformed during the moulding process to conform with the shape of the mandrel. The ends of the needle and tube, which may be notched, are arranged on the mandrel so that they abut or overlap. The connector-piece may be moulded with apertured wings 16 by which the assembly may be secured to a patient's arm. Alternatively, a serrated circular flange (not shown) may be formed on the connector-piece. The tube is made of polyvinyl chloride, polythene or styrene.
Patent GB-706318-A (GB)
Title: A method for the heat-treatment of materials in vertical shaft furnaces
IPC: B01J3/04
Filed: 1950-01-30
Abstract: In operating vertical shaft furnaces wherein a mixture of raw material, e.g. cement forming material, limestone or ore, solid fuel and inert material is charged from the top and passes down in counter-current to an ascending air blast through a reaction zone and cooling zone, and the treated material is removed at the bottom, the ratio between the fuel on the one hand and the treated material and inert material on the other hand is determined such that the heat capacity of the total amount of material is substantially equal to the heat capacity of the amount of air necessary for the complete combustion of the fuel, and the ratio between the material to be treated and the inert material is chosen such that the heat produced by the complete combustion of the solid fuel corresponds to the net heat requirement of the material to be treated.  Already treated material is suitably used as inert material.  The kilns disclosed in Specification 694,430, [Group V], may be used.ALSO:In operating vertical shaft furnaces wherein a mixture of raw material, e.g. cement-forming material, solid fuel and inert material is charged from the top and passes down in counter-current to an ascending air blast through a reaction zone and cooling zone, and the treated material is removed at the bottom, the ratio between the fuel on the one hand and the treated material and inert material on the other hand is determined such that the heat capacity of the total amount of material is substantially equal to the heat capacity of the amount of air necessary for the complete combustion of the fuel, and the ratio between the material to be treated and the inert material is chosen such that the heat produced by the complete combustion of the solid fuel corresponds to the net heat requirement of the material to be treated.  Already treated material is suitably used as inert material.  The kilns disclosed in Specification 694,430, may be used.
Patent GB-138979-A (GB)
Title: Building block ties
IPC: E04B2/02
Filed: 1919-01-30
Abstract: 138,979. Thomas, A. O. Jan. 30, 1919. Walls-ties.-Walls comprised of two-part tiles or blocks are bonded by means of ties consisting of two bars 1 pivoted together at 2 and having their outer ends engaged in loops 8 fixed in the tiles &c. The inner ends of the bars are provided with flanges 3, so that when the bars are pulled out of alinement to cause a tensional stress in the tie, the flanges 3 snap over the edges of the adjacent bars and so prevent the bars from returning to alinement. When the openings 7 are filled with concrete, tongues 12 are provided on the tie-members to engage reinforcement rods.
Patent GB-616251-A (GB)
Title: Electrical welding of articles of glass or other vitreous material
IPC: H01J5/24
Filed: 1945-01-30
Abstract: 616,251. Dielectric heating; making electric lamps. DESCARSIN, M. Jan 30, 1945, No. 2376. Convention date, May 15, 1941. Drawings to Specification. [Classes 39 (ii) and 39 (iii)] A method of electric welding of glass articles, such as a bulb to a lamp base, by a preliminary heating other than by dielectric losses followed by heating by dielectric losses in an electric field of very high frequency, is characterised by the feature that the first heat source continues to act simultaneously with the second, that the heat is concentrated in the region of the weld and is there uniformly distributed and that the parts are placed close enough together to be able to come into contact without the application of external pressure when the glass is softened by the heat. The Specification as open to inspection under Sect 91 comprises also the method and apparatus for heating glass articles by dielectric loss, the field being concentrated by suitably shaped metal members within the articles opposite the electrodes. This subject-matter does not appear in the Specification as accepted.
Patent GB-240118-A (GB)
Title: Improvements in and relating to dry cells
IPC: H01M6/38
Filed: 1925-01-27
Abstract: 240,118. Mannesmann - Motoren- Werke. Sept. 17, 1924, [Convention date]. Cells; electrodes.-A dry cell of the kind in which the electrolyte is contained in a receptacle h which is broken when the cell is required for use, is provided with a member s completely enclosed within the cell and which is pressed upon the receptacle h to break the same by a second member introduced from the outside of the cell. The member s may be located in the bore of a tubular carbon electrode and may be surrounded by pitch or ozokerite which with the member s forms a seal preventing the escape of electrolyte when the receptacle h is broken. The cell is also sealed at e and provided with a cardboard &c. cover s having detents t to indicate where the external member is to be introduced when the cell is to be activated. Specification 231,135 is referred to.
Patent GB-104704-A (GB)
Title: Improvements in or relating to Steam Condensers and Methods of Supporting them in Position.
Inventor: BAUMANN KARL
IPC: F01K11/02
Filed: 1916-02-19
Abstract: 104,704. Baumann, K. Feb. 19, 1916. Tube supports.-Relates to condensers arranged immediately below the outlet of the exhaust casing of a steam turbine. The sagging plates 14 supporting the tubes, only one of which is shown, are secured to the shell by lugs 15 at their lower edges only, the upper parts having a sliding support 16.
Patent GB-707488-A (GB)
Title: Manufacture of new disazo-dyestuffs
IPC: C09B43/16
Filed: 1952-01-31
Abstract: The invention comprises disazo dyestuffs of the formula <FORM:0707488/IV(c)/1> where R1 and R3 are salicylic acid residues (which may be substituted and may be the same or different) and R2 and R4 are p-phenylene residues (same or different).  These are made by condensing cyanuric chloride or bromide with 1 mol of 2-naphthylamine-4:8-disulphonic acid and 2 mols of the same or different aminoazo compounds R1-N= N-R2-NH2. The latter are obtainable from (1) diazotized R1-NH2 and a p-coupling amine of the benzene series (which may be in the form of its N-sulphomethyl derivative), or (2) a diazotized p-substituted aniline coupled with a salicylic acid followed by conversion of the p-substituent (e.g. nitro or acetylamino) into an amino group.  Preferably the residues R1-R4 are free from sulphonic acid groups.  The products are suitable for dyeing and printing wool, silk, cotton, linen and regenerated cellulose in yellow shades which are dischargeable by neutral or alkaline reducing agents.  The dyestuffs may be metallized (e.g. coppered) in substance or on the fibre.  In the examples, (1) cyanuric chloride is condensed first with 1 mol of 2 - naphthylamine - 4:8 - disulphonic acid and then with 2 mols in succession of 4-aminobenzene-azosalicylic acid; (2) as in (1) using for the second step (and optionally the third step also) the dyestuff 5-aminosalicylic acid-->cresidine; (3) as in (1) using for the second step the dyestuff 5-amino-3-sulphosalicylic acid --> cresidine; (4) cotton is dyed greenish-yellow with the product of (1) in an alkaline bath; the dyeing is discharged white by an alkaline printing paste containing sodium formaldehyde sulphoxylate.  Other suitable aminoazo compounds for the condensation are mentioned, together with components for their preparation.
Patent GB-347599-A (GB)
Title: An improved inductance for motor control
IPC: H01F29/10
Filed: 1930-01-25
Abstract: 347,599. Inductances; induction controllers. GEDDES, J. W., Katu, Bodley Road, New Malden, and HOOK, G. R., 41, Ruskin Drive, Worcester Park, both in Surrey. Jan. 25, 1930, No. 2653. [Class 37.] A variable reactor comprises a U- shape member g having a laminated core f secured thereto, the side legs of the member g straddling the coil a, and the core f sliding within the coil, on relative movement between the coil and core. The coil is mounted on an iron baseplate c, and the member g is prevented from making contact therewith by insulation d. The reactor may be employed with coil-winding machines driven by alternating-current motors.