baber/WOPTO huggingface dataset:
Patent GB-932701-A (GB)
Title: Flexural oscillator of electrostrictive material
IPC: H03H9/17
Filed: 1961-03-07
Abstract: 932,701. Piezo-electric elements; electromechanical filters. SIEMENS & HALSKE A.G. March 7, 1961 [March 7, 1960], No. 8379/61. Class 40 (8). A flexural oscillator comprises a plate of electrostrictive material, e.g. barium titanate, having on one or both surfaces an array of electrodes which divides the plate up into zones alternately polarized in opposite directions along the bending axis. Thus the rectangular plate of Fig. 2 is provided on one surface with two interdigitated electrodes 4, 6 to which a polarizing voltage, of e.g. 600 V/mm., may be applied, whereby transverse zones alternately polarized in opposite longitudinal directions are created in the plate. The polarization may be carried out at an elevated temperature above the Curie point. Application of a signal voltage to the electrodes causes flexural oscillations in a plane containing the longitudinal axis. In a modification (Fig. 5, not shown), both surfaces of the plate bear identical electrode patterns and this results in superimposed zones of polarization in the thickness of the plate. The superimposed zones may be polarized in the same or in opposite directions. In the first ease, immediately opposite electrode strips are connected to opposite poles and, in the second case, to the same pole. The disc oscillator of Fig. 3 bears concentric electrode strips 8 alternately connected through radial strips 9, 11 to poles 10, 12. Concentric zones alternately polarized in opposite radial directions are established in the disc whereby it responds to an applied signal by flexure in the radial planes. The electrode pattern may be in the form of two interpenetrating spirals (Fig. 4, not shown). If the disc is constrained at its edges, flexure is confined to the central portion and the electrodes are likewise confined to this central portion. Fig. 7 shows an electromechanical quadripole filter using two sets (input and output) of electrodes 23, 26 disposed on the surface of the same electrostrictive bar. The mode of operation is the same as that of the oscillator shown in Fig. 2. In the various embodiments, better polarization can be obtained by sinking the electrodes into the surface of the element.
Patent GB-677579-A (GB)
Title: Improvements in or relating to heaters for liquids
Inventor: WATTS DONALD EDWARD CHARLES
IPC: C12C13/02
Filed: 1950-04-04
Abstract: 677,579. Heating liquids in bulk. A.P.V. CO., Ltd. March 8, 1951. [April-4, 1950], No. 8425/50. Class 64(iii) A heater for mounting within a liquid containing vessel 10, e.g. a brewing copper, comprises axially spaced frusto-conical members 21 having their. larger diameter ends lowermost, at least one .of said members being jacketed to receive a heating medium, e.g. steam for the liquid. Preferably the members 21 are arranged coaxially to provide therebetween one or more frusto-conical flow paths 22 for the liquid, leading upwardly to a central vertical channel through the heater. In Fig. 2, the members 21 are all jacketed and are supported from the bottom of the vessel 10, on tubular supports 30, 31 arranged in two series viz. inwardly and outwardly of the members 21 and carrying brackets 32, 34 to which are attached short hollow struts 33, 35 these latter being secured respectively to the inner and outer walls of the members 21. Ports, aligned with the struts 33, 35 are provided in the walls of the members 21, in the brackets 32, 34 and in the tubular supports 30, 31. Steam is passed upwardly through one or more of the tubular supports 30 and flows through the hollow struts 33 to the space within the jacketed frusto-conical members 21, the condensate from the steam flowing through the hollow struts 35 to one or more of the tubular supports 31. Fig. 5, shows a modification in which only one series of tubular supports is required these being located generally outwardly of the members 21 passing through their larger diameter ends and being welded thereto. Some of the tubular supports are provided with ports 50 for the admission of steam to the interior of the members 21, the other tubular supports being provided with ports 51 for the discharge of condensate. The tubular supports may comprise detachable sections (e.g. 30a, Fig. 5), so that the capacity of the heater may be varied by removing or inserting one or more frusto-conical members 21. In the application to a brewing copper described Fig. 1 (not shown), and Fig. 2, the uppermost frusto-conical member comprises a hood 26 carrying a duct 27 and surmounted by a cowl 28. Boiling liquid passes upwardly through the frusto-conical passages 22 and through the duct 27 and is showered by the cowl on to the surface of the wort within the copper. The copper may contain a plurality of heaters.
Patent GB-1156442-A (GB)
Title: Improvements in or relating to Continuous Stationery Feed Devices
Inventor: LABOURIAUX CLAUDE
IPC: B41L5/06
Filed: 1966-02-25
Abstract: 1,156,442. Selective printers; carbon transferpaper mechanisms. LAMSON PARAGON Ltd. 16 Feb., 1967 [25 Feb., 1966], No. 8460/66. Heading B6F. A device for feeding continuous stationery record webs which are interleaved with carbon transfer webs drawn off supply rolls at a slower rate than the record webs as described in the Specification 1,057,236 is modified in that the stationary guide 20, therein, disposed above the printer on the outfeed side of the continuous stationery, is replaced by a guide 7, Fig. 1, which includes a pair of transversely spaced pin feed tractors 12, Fig. 2, so as to facilitate the withdrawal and tension the continuous stationery delivered by the outfeed tractors 2, Fig. 1. The guide 7 comprises a pair of arcuate side plates 9 supporting a number of pairs of leading and trailing end, guide rods 10 between which extends a pair of rods 13, 22 mounting a pair of transversely spaced and adjustable pin feed tractors 12 which are driven by a shaft 22 coupled through gears 23 to an electric motor 24. The motor is provided with a friction clutch (not shown) to drive the tractors 12 when the tractors 2 release a length of the stationery webs the friction clutch also serving for maintenance of tension in the length of the stationery webs disposed between the respective tractors 2, 12. The tractors 12 are mounted for transverse adjustment on the rod 13 to which they are fixed by screws 21, the transverse adjustment being effected by knurled nuts 20.
Patent GB-940177-A (GB)
Title: Method of crosslinking in the production of polymeric products
IPC: C08F8/42
Filed: 1962-03-05
Abstract: 940,177. Cross-linking synthetic polymers. W. R. GRACE & CO. March 5, 1962 [March 7, 1961], No. 8465/62. Headings C3P and C3R. A process for cross-linking synthetic polymers containing ketone or aldehyde groups comprises subjecting the polymer to the action of a crosslinking agent M(OR) x-y Cly, wherein M is Al or Ti, OR is alkoxy, X is the valency of M, Y has a value between 0 and 2 and X-Y is at least 2. Specified polymers are polyethylene or polypropylene which have been oxidized to contain carbonyl groups, copolymers of styrene or an olefin with methyl vinyl ketone, acrolein or carbon monoxide, and condensation polymers of acetone dicarboxylic acid with hexamethylene diamine. The cross-linking agent may be aluminium isopropoxide, tetraisopropyl or tetra-nbutyl titanate, aluminium n-butoxide, tetracyclohexyl titanate, chloroaluminium diisopropoxide or mixtures such as Ti(OR 3 ) Cl + Ti(OR 2 )Cl 2 .
Patent GB-1101430-A (GB)
Title: Dry cleaning machine
IPC: D06F43/08
Filed: 1966-02-25
Abstract: 1,101,430. Vacuum pumps. ENGLEHARD HANOVIA, Inc. Feb.25, 1966 [Feb. 26, 1965], No.8525/66. Heading F1N. [Also in Division D1] In a dry-cleaning machine (see Division D1) two vacuum pumps are provided each comprising a pump casing 101 having inlet and outlet chambers 102, 103 and a piston 104, the casing being partly filled with oil to splash lubricate piston driving means 106. The pump exit line 107 comprises a trap 108 from which oil separated from the exhaust gases drains into inlet chamber 102. Casing 101 is supplied with oil from reservoir 111 through oil feed chamber 114 and valve 117, excess oil over-flowing into reservoir 111. When pump operation stops and air is admitted to chamber 102 to bring casing 101 to atmospheric pressure, valve 117 prevents loss of vacuum in chamber 114 and oil is sucked into it from reservoir 111.
Patent GB-847582-A (GB)
Title: Improvements in or relating to spinning lathes
IPC: B21D22/18
Filed: 1959-03-12
Abstract: 847,582. Spinning. BOHNER & KOHLE KOMM.-GES. March 12, 1959 [March 15, 1958 (3)], No. 8575/59. Class 83 (4). In a spinning-machine the spinning roller 6 is pressed against the blank by hydraulic power-transmitting means and has a compound slide with a top slide 8 thereof carrying the spinning- roller and an intermediate slide 9 carrying the top slide and slidable on a longitudinal slide 10 swivelmounted on the machine bed, and the hydraulic power means is controlled by a tracer-controlled profiling mechanism comprising a tracer slide 18 likewise mounted on said intermediate slide and positively connected to said top slide, a movable tracer 16 engaging a master template 12, the hydraulic power means connecting said tracer to the tracer slide and thus to the top slide and the spinning roller. The hydraulic force is controlled by a slide-valve 19 which communicates with an hydraulic cylinder 20 operating the tracer slide 18 and the latter is connected through a manually-adjustable spindle 15 to the top slide carrying the spinning-roller. The tracer mechanism comprises a pivoted arm 17 on which the tracer finger 16 is mounted and the template is removably mounted on a support 11 secured to the slide 10. The free end of tracer arm 17 engages an adjustable stop 49 on a spindle 14 mounted in the intermediate slide 9. The spindle 14 may be used for manual adjustment of the spinning-roller when carrying out a stepby-step spinning operation. An electricallydriven pump delivers pressure fluid via a control valve 53 to the cylinder 20, the spring-loaded piston 54 of which can be manually operated, if desired, by means of a rod 57. An electromagnetically operated valve 58 is provided for disengaging the tracer finger from the template. A control-valve 59 and a slide-valve 60 control the feed of the longitudinal slide 10. A universally movable tracer pin 46 (Fig. 6) is used if the template is of highly irregular contour and the template is set in an adjustable slide 43 slidable in a support 11. The longitudinal slide 10 can be locked in any desired position by means of tension bolts 37 (Fig. 3) each having an integral worm-wheel 40 engaging a worm 41 arranged in pairs on shafts 42 mounted in the slide 10. The worms and worm-wheels on each shaft are threaded in opposite directions so that rotation of the shafts 42 in one direction locks the worms and worm-wheels together and a reverse rotation unlocks them. To prevent the slides tilting relative to each other the top and intermediate slides 8 and 9 are provided with inclined horizontal and vertically-disposed guide surfaces 22, 23, 25, 29, 26, 31 and 32 (Fig. 4) and the axis 35 of the roller support 7 and the feeding axis 36 of the intermediate slide 9 are disposed at the same level.
Patent GB-510208-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/28
Filed: 1938-03-21
Abstract: 510,208. Tobacco pipes &c. McKAY, J. V. March 21, 1938, No. 8576. [Class 130] The bowl of a tobacco pipe is coaxial with the mouthpiece 7 and formed by successive sections 1, 2, 3 which are detachably secured to one another. An enlarged section may be fitted to the end section 3. A filter of cotton wool or tobacco may be placed in the mouthpiece or the adjacent section. The pipe may be used as a cigar &c. holder by placing the whole of the cigar &c. in the bowl.
Patent GB-307941-A (GB)
Title: Improvements in and relating to sparking plug electrodes
IPC: H01T13/39
Filed: 1929-03-16
Abstract: 307,941. Soc. de Constructions d'Appareils MÚcaniques et Electriques pour Automobiles. March 16, 1928, [Convention date]. Spark-gap apparatus.-According to the Specification as open to inspection under Sect. 91 (3) (a) a coating of chromium or other metal which is not readily volatilizable is given to electrodes for sparking devices for obtaining oscillating currents as used in wireless telegraphy and for high frequency inductive heating currents. These applications do not appear in the Specification as accepted.
Patent GB-948083-A (GB)
Title: Improvements in or relating to terminal block assemblies
Inventor: BERRY ALBERT WILLIAM JAMES
IPC: H01R9/26
Filed: 1961-03-09
Abstract: 948,083. Terminal blocks. ALLEN WEST & CO. Ltd. Feb. 21, 1962 [March 9, 1961], No. 8652/61. Heading H2E. In a terminal block assembly in which each block has projections 21 which slidably engage slots in an insulating mounting base (Fig. 1, not shown), a bridge member 30 for locking each block to the base is provided having legs 28 which project through grooves in the block and engage fingers 26 therein and then extend through the base of the block to engage holes in the mounting base. In Fig. 3 (not shown), square section brass terminals are held in the block by spring circlips engaging terminal grooves. Cable markers may be mounted on the cylindrical bridge-piece.
Patent GB-1452930-A (GB)
Title: Electrical switches
IPC: H01H13/10
Filed: 1973-02-22
Abstract: 1452930 Retractive switches LUCAS ELECTKICAL Ltd 30 Jan 1974 [22 Feb 1973] 8663/73 Heading H1N A switch comprises first and second contact members 15 and 16 engaging opposite faces of an element 19 formed of resilient insulating material containing discrete particles of conductive material and resilient means urges the members 15, 16 towards one another such that the element 19 is compressed to form a conductive path therethrough, movement of the members 15, 16 away from one another being limited such that at this limit the members 15, 16 remain engaged with the respective faces of element 19 but the compression thereof is then insufficient to establish said conductive path. As shown the switch is for door-operation. A spring 24 urges the head 23 of an operating plunger 22 against movable contact 16 and compresses element 19 against fixed contact 15 with sufficient force to establish a connection between the contacts. If plunger 22 is depressed, as in the upper part of the Figure, contact 16 is released and the circuit broken but abutment of contact 16 on shoulder 14 keeps contact 16 against element 19.
Patent GB-830152-A (GB)
Title: An improved automatic cigarette lighter for automobiles
IPC: F23Q7/00
Filed: 1957-03-18
Abstract: 830.152. Electric cigarette lighters. FUHRMAN, G., and SCHEUFFELE, R., [trading as SCHEUFFELE & CO., R.]. March 18, 1957 [March 22, 1956], No. 8754/57. Class 75(3) An electric cigarette lighter for use in automobiles comprises a casing having an opening for inserting and holding a cigarette, a heater disposed within the casing in line with and at right angles to the opening axis, a pair of contacts for plugging the lighter into a socket and a manually operated control for connecting the heater to the contacts and for automatically disconnecting the heater from at least one of the contacts after having been connected for a certain length of time. The casing is formed in two halves aligned by means of pegs 17, 18 and held together by a metal sleeve 4 slipped over a plug portion 3 and having an edge 5 inwardly turned into a groove 6, a metal cap 7 fitted over the end of the plug 3 and having an inwardly turned edge 8, a metal cup 10 provided with an aperture for a pushbutton 9 and finally a metal sleeve 11 provided with ian opening 13 for holding a cigarette and an edge 15 turned over the end 16 of the casing halves. Air, to aid ignition, passes through an opening 19 in the bottom of the casing over the heater 31 and out through an opening 20 at the top of the casing. To operate the lighter the button 9, attached to the end of a rod 21, is depressed to compress a spring 23 and to place a flange 25, mounted on the rod 21, into contact with a contact spring 27 thus completing an electric circuit through the cap 7, spring 23, sleeve 24, flange 25, contact spring 27, wire 28. heater 31 and contact spring 32 to the metal contact sleeve 4. The free end 35 of a bimetallic spring 34 drops behind a shoulder 36 of an insulating member 26 to maintain contact between the flange 25 and the spring 27. The bimetallic spring 34 on being heated by the heater 31 bends upwards to release shoulder 36 to allow the spring 23 to move the rod 21 breaking contact between the flange 25 and the contact spring 27. The coil of the heater 31 is wound on a ceramic member 30 which is mounted on a bridge member 29. The opening 13 in the sleeve 11 may be large enough to receive cigars and a reducing sleeve may be inserted therein to hold cigarettes.
Patent GB-1098883-A (GB)
Title: Sewage treatment system
Inventor: MEYER FREDERICK WILLIAM ALBERT
IPC: C02F9/00
Filed: 1964-03-02
Abstract: <FORM:1098883/C1/1> In a sewage handling system, sewage receivers are flushed with a solution containing caustic alkali in germicidal concentration which is passed through a comminutor and a settling tank from which it is recycled to the flushing inlets of the receivers, the concentration of the alkali being maintained by addition thereof as required, and the total quantity of liquid in the system being maintained approximately constant.  The preferred alkali is caustic soda. Bleaching agents such as sodium hypochlorite may be used.  In Fig. 1, sewage from the receivers 2 is flushed with caustic alkali under pressure from tank 34 and passes by pipe 6 and valve 20 to tank 22 in which the caustic alkali effects initial sterilization and disintegration of the sewage.  It then passes through the comminutor 24 to tank 26 where additional caustic soda and hypochlorite are supplied from tanks 38 and 40. From tank 26, a proportion of the effluent is recirculated by pump 60 to tank 22. The resulting solution from tank 26 passes into settling tank 30 from which part of the solution is periodically drawn by pump 32 to replenish tank 34, the remainder being either drawn off to the storage tanks 74 or discharged directly through valve 66.  The system is particularly applicable to ships in enclosed waters.
Patent GB-211364-A (GB)
Title: Improvements in change speed gear mechanism for mechanically propelled vehicles
IPC: G05G9/10
Filed: 1923-03-28
Abstract: 211,364. Royce, F. H. March 28, 1923. Controlling variable-speed gearing.-Selector bars d, d<1> are operated alternatively by an arm e the lower end of which passes through a gap c<2> in a gate c between the bars in passing from one to the other. This gate c is supported on a bar c<1> longitudinally slidable for adjustment.
Patent GB-122574-A (GB)
Title: Hand-lever Driving Device for Vehicles.
Inventor: PITBLADO ROBERT
IPC: B62M1/14
Filed: 1918-05-29
Abstract: 122,574. Pitblado, R. May 29, 1918. Hand driving- mechanism. - For propelling, or assisting in the propulsion of, invalid's carriages and other vehicles, a lever pivoted to a roadwheel hub has pivoted thereto a handle, which is formed with a dog or clutch element engaging with the wheel rim. As shown, the handle 4 is provided with a hinge-piece 6 whereby it is connected adjustably to the cross-bar 13 of a bifurcated lever 1 pivoted to the wheel hub. According to the Provisional Specification, the clutch member is pivoted to the handle.
Patent GB-162163-A (GB)
Title: Improvements in sound box diaphragms
IPC: H04R7/00
Filed: 1920-03-26
Abstract: 162,163. Butow, P. E. March 26, 1920. Diaphragms, construction and shape of. The diaphragm of a sound-box is of spun aluminium and has a uniform thickness of about 0.002 in. The central portion, with a radius approximately 3/5 of the whole, may be formed with corrugations 14, 15, 16, and reinforced by either one or two discs 21, 22 of celluloid, spun aluminium, or other material having together the same thickness as the diaphragm. These discs are attached by flexible cement such as gum arabic, and reach as far as the second corrugation 15.
Patent GB-609790-A (GB)
Title: Improvements in the production of cellulose esters
IPC: C08B3/16
Filed: 1946-03-22
Abstract: Mixed cellulose esters are prepared by esterifying cellulose in the presence of an esterification catalyst with a mixture of the anhydrides of a saturated aliphatic acid and an unsaturated aliphatic acid, each of which acids contains at least four carbon atoms in the molecule.  The conditions of esterification are such that the ester contains a relatively small proportion of unsaturated acid groups, about 0.2 to 0.3 per glucose residue. The most useful of these esters is cellulose butyrate crotonate, which may be moulded with or without a plasticiser at temperatures up to 200 DEG  C., the moulded articles possessing both toughness and flexibility.  Preferably, the catalyst is sulphuric acid, though phosphoric acid may be used, and only about 50-75 per cent of the catalyst should be present at the commencement of the reaction.  The reaction temperature should not exceed 15 DEG C. The ester may be bleached prior to precipitation or following precipitation, in preference the bleaching being carried out both while the ester is in solution and again when it is in the fibrous form.  The preferred bleaching agent is hydrogen peroxide, but sodium hypochlorite, bleaching powder and sodium sulphite may be employed. The ester may be stabilized by refluxing with alcohol and water containing 0.01-0.05 per cent sulphuric acid, by kneading with acetone or methyl ethyl ketone and adding magnesium carbonate until the pH of the supernatant liquid is between 6.9 and 7.1, or by heating with 6-10 times its volume of 0.02-0.05 per cent aqueous sulphuric acid under pressure at 120-130 DEG  C. for 2-4 hours.  In an example (all parts being by weight), 150 parts of cotton linters are agitated for one hour in a mixture of 450 parts butyric acid and 30 parts formic acid, and allowed to stand for about 58 hours.  The cotton and pretreatment mixture are cooled to -10 DEG  C. and added to 360 parts butyric anhydride and 180 parts crotonic anhydride to which is added 8.6 parts of sulphuric acid dissolved in 120 parts butyric anhydride.  After 5-6 hours, the temperature rises to 15 DEG C. at which level it is maintained. 2.9 parts of sulphuric acid in 16 parts of butyric anhydride are added when the mixture clears.  After 20 hours, water (25 per cent of cotton weight) is added, the sulphates hydrolysed out.  The ester in solution is bleached by 750 parts glacial acetic acid containing 4.9 parts 30 per cent aqueous hydrogen peroxide, and then the acid catalyst neutralized with magnesium carbonate and the ester precipitated by excess water.  If desired, it may be redissolved in glacial acetic acid and reprecipitated to obtain a fibrous compound.  Stabilization is effected by heating under pressure with dilute sulphuric acid.  The butyrate-crotonate so obtained is fully esterified and has a butyryl value of 71.6 per cent and a crotonyl value of 4.9 per cent, both calculated as the corresponding acids.