baber/WOPTO huggingface dataset:
Patent GB-1078575-A (GB)
Title: Improvements in or relating to flexible waveguides
Inventor: SAWADA SUMIO
IPC: H01P3/14
Filed: 1964-08-19
Abstract: <PICT:1078575/C6-C7/1> To produce a bellows-type flexible waveguide a metal mandrel 11 is electroplated with copper or copper alloy 12 to the required thickness, jointing end flanges 13 are soldered at 15 to the electrodeposit, a rubber or similar material protective covering 14 is moulded on to the waveguide, and the mandrel is then removed, e.g. with hot caustic soda solution or hydrochloric acid for aluminium or zinc respectively or by immersion in an oil bath heated above the melting point of the mandrel for low melting alloys.  As described, after cleaning, the mandrel is electroplated with not more than 0.02 inch layer of the copper or copper alloy, e.g. Cu-Zn, Cu-Sn, and after removal of the mandrel the waveguide is subsequently electroplated internally with a 0.1 mil layer of silver using an internal silver anode rod or plate located by insulating spacers. Typically cyanide baths are used for the electroplating steps and brighteners (unspecified) may be included in the baths.  For smooth, uniform deposition of the copper or copper alloy the mandrel may be rotated during plating and air agitation of the bath and periodic reverse current with a 15 secs. cathodic and 2 secs. anodic period may be employed.  The copper-zinc alloy bath may include Rochelle salt.  The mandrels may be initially degreased with trichlorethylene and then freed of oxide with tartaric acid before plating.
Patent GB-316351-A (GB)
Title: Improvements in and connected with coupling devices for rail vehicles
IPC: B61G5/02
Filed: 1928-04-27
Abstract: 316,351. Saccaggio, P. C. April 27, 1928. Divided on 301,339, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of]. Couplings, non-automatic; drawgear.-In a coupling device for railway vehicles of the kind comprising a rigid rod or draw-bar pivotally connected to the ends of adjacent vehicles, the rigid or substantially rigid rod 1, 1a is vertically pivoted .at its ends to the vehicle frames or bogies at points or axes arranged as near as possible to the swivel axes of the bogies, the coupling being particularly adapted for use with the long coaches of railway trains as described in Specification 301,339, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of]. In the construction shown the coupling-rod is formed in two parts 1, 1a connected by a union 4, and each part has fitted at its inner end a hollow sleeve 5 accommodating two sets of rubber cushions or springs 9, 10 between which is disposed the flange 11 of a sleeve 12 keyed to a rod 7, the latter rod being slidable in an extension 6 of the sleeve 5 and being pivoted at 2 to the bogie frame or, as shown, to a cross-bar 3 connected to the vehicle underframe.
Patent GB-1516196-A (GB)
Title: Electrode assemblies and electrolytic cells containing them
IPC: C25B9/19
Filed: 1975-08-15
Abstract: 1516196 Diaphragm cells BASF WYANDOTTE CORP 15 Aug 1975 [16 Aug 1974] 34015/75 Heading C7B Electrodes 24, 26 are separated by an endless belt diaphragm 36 supported at its edges by polymeric (surfaced) supports 32, 30 such as to form a separate electrode space within the diaphragm. In the vertical chlor-alkali cell shown the anodes 24 extend into such spaces and a wire screen or perforated cathode 26 has vertical compartments joined by upper and lower sheets. Alternatively the cathode may comprise fingers which extend down between the anodes which are then themselves totally encased by the diaphragm/support arrangement; in this case the openings in upper and lower supports 30, 32 are staggered and the cathode may be lifted independently from the cell, Fig. 4 (not shown). The diaphragm may be of polyolefin, a fluorocarbon or ABS resin, optionally filled with asbestos,.glass fibres, mica, kaolin or carbon black. The supports may be made of or coated with (e.g. metal substrate) the same polymers and joined to the diaphragm by friction welding, heat sealing or mechanical fit. An inert screen may be placed between the diaphragm and the cathode and/or anode.
Patent GB-1242417-A (GB)
Title: Production of fibrous sheet components
Inventor: RINGE WERNER
IPC: D04H1/70
Filed: 1968-07-17
Abstract: 1,242,417. Edge zone thinning of glass fibre sheets. HAUNI-WERKE KORBER & CO. K.G. 17 July, 1968 [28 Oct., 1967], No. 34064/68. Heading B5K. [Also in Division D1] Glass fibres are removed mechanically from a glass fibre sheet. In the embodiment shown in Fig. 2, a glass fibre mat 2 is thinned out at its edge zone 2a by means of a pin 4 having a point 3 which moves continuously along the path 71. The mat 2 is moved progressively stepwise along the bench 1 by means of the driving roller 54 and counter roller 68. When the mat 2 is stationary the point 3 enters the edge zone 2a and is then extracted so that it removes glass fibres essentially perpendicularly to the margin line 72 of the edge zone 2a. The driving means and extracting means are mechanically coupled together so that the process is repeated at regular intervals to obtain a uniform thinning of the edge zone 2a. The method may also be carried out on the apparatus of Figs. 3 and 4 (not shown), the mat 2 being moved continuously past the fibre extractor means which consists of a continuously rotating roller having pins or needles arranged on its periphery.
Patent GB-605154-A (GB)
Title: Improvements in the treatment of ground, masonry or the like for consolidating, sealing or filling the same
IPC: C09K17/12
Filed: 1945-12-17
Abstract: Ground, masonry and the like is consolidated, sealed or filled by forcing into it two different salt solutions one after the other which on encountering each other form voluminous sticky and practically water-insoluble compounds, the first solution being a mixture of water-glass with a solution of an alkali phosphate, preferably trisodium phosphate and/or alkali soap and may also include concentrated alkali carbonate solution, e.g., sodium carbonate solution.  The second solution may be of a soluble salt, preferably the chloride of calcium (in particular), magnesium, barium, beryllium, zinc, cadmium, aluminium, lead or iron.  The salt solutions employed may be dilute, saturated or super-saturated, and the waterglass solution should have an Na2O:SiO2 ratio of 1: at least 3.2 by molecular proportion.  The first solution preferably contains not more than 0.6 part by volume of saturated alkali phosphate or alkali soap solution or solution mixture to 1 part by volume of concentrated water-glass solution.  The soap solution used may be resin soap prepared by dissolving common rosin in a dilute solution of caustic soda and decanting when clear.  Specification 484,275, [Group XXI], is referred to.
Patent GB-413562-A (GB)
Title: Improvements in and relating to indicators for showing failure of electric lamps
IPC: H05B39/10
Filed: 1933-12-06
Abstract: 413,562. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Helmbright, H. H. ; 2542, Queenstown Road, Cleveland Heights, Ohio, U.S.A.) Dec. 6, 1933, No. 34330. Convention date, Dec. 9, 1932. [Class 39 (i).] A device for indicating the failure of electric incandescent lamps and forming part of the lamp or its sockets, or an adapter therefor, comprises a gaseous discharge lamp mounted within an annular member provided with apertures through which the lamp is visible, a resistance carried by the annular member being connected in series with the discharge lamp across the contacts of the incandescent lamp to which the device is applied. As shown in Figs. 2 and 3 the gaseous discharge lamp 12, such as a neon lamp, is mounted within a transverse opening 10 in an insulating ring 8 surrounding the lower part 2 of a metal adapter socket 1, a resistance 11 being mounted within a parallel opening 9. The resistance and discharge lamp, together with conductors 16-18 which connect them in series across the adapter socket 1 and centre contact 6, may be secured in position by a sealing- compound 13. The lamp 12 is visible through openings 14, 15 provided in the insulating-ring 8. The inner centre contact plate of the adapter is connected to the outer centre contact 7 by a screw 5 passing through, and securing, two insulating members 4, 4<a> at the upper end of the socket 1.
Patent GB-414642-A (GB)
Title: Improvements in or relating to the braking of rotatable members
IPC: F16D57/00
Filed: 1932-12-05
Abstract: 414,642. Brakes; friction clutches. UHLMANN, A., 101, Unter den Eichen, Lichterfelde, Berlin. Dec. 5, 1932, No. 34378. Convention date, Sept. 2. [Class 80 (ii).] A braking effect between a rotating bushed wheel a and a fixed shaft c is produced by forming the bush b of porous metal made by fritting together metal powders or metal powder mixtures in a high-frequency field, and supplying lubricant under a pressure exceeding five atmospheres through passages d, e in the shaft to the bush. The end faces and the outer surface of the bush are sealed. German Specification 405,880 is referred to. According to the Specification as open to inspection under Sect. 91, fluids other than lubricating oil, or a mixture of air and oil, may be used, and it is stated that a clutching effect between two rotatable members may be produced by supplying fluid under pressure to porous metal bushes or discs, and that capillary membranes, separated by thin mica rings, may be stacked in the oil supply pipe for the purpose of transmitting pressure without flow. This subject-matter does not appear in the Speoification as accepted.
Patent GB-173240-A (GB)
Title: Improvements in electro-magnetic control devices for electric arcs
IPC: H01H9/44
Filed: 1921-12-21
Abstract: 173,240. Le Tall, F. W., (Westinghouse Electric & Manufacturing Co.). Dec. 21, 1921. Sparking, preventing, and arc-rupturing devices; automatic circuit-breakers.-Electromagnetic arc control devices particularly for use with electric circuit interrupters are arranged to control and definitely limit the path of travel of the arc and to permit it to be formed or manipulated in any shape or length. A circuit interrupter comprises fixed and movable contact members 1, 2 with horn arcing tips 3, 4, and a series-connected coil 9 consisting of two laterally spaced layers 10, 11. The arcing tip 4 is pivoted at 17 to the main contact 19, which is secured to a rod 18 comprising at its lower fixed end resilient laminations 23 which bias the rod 18 in a clockwise direction, the arm 18 carrying an armature 26 adapted to be attracted by the electromagnet 27. The arcing tips 3, 4 are disposed between the sections 10, 11 of the coil 9, their ends 35 extending beyond the coil perimeter, and arc barriers 13 are inserted between the coil sections to lengthen the arc, which is confined laterally between asbestos barriers 12. When an overload occurs in the circuit 7, 8 the reactance voltage across the coil 9 produces a current in the coil 32 of the electromagnet 27 which diverts the flux produced by the holding coil 31 across the auxiliary air gap and releases the switch arm 18. The arc between contacts 1, 2 travels to the perimeter of the coil 9, the current in this coil producing a reverse flux beyond the perimeter of the coil past which the arc cannot travel, and the arc stream may be stabilized to form a stationary incandescent stream; the resistance of the arc dissipating the stored energy of the system so that the current quickly decreases to such a value that interruption of the current may be readily effected. In an alternative form the sections 10, 11 of the coil 9, Fig. 12, which is shaped to give the greatest flux density adjacent to the contacts 1, 2, are arranged so that the arc is confined in the angle between the coil sections, where the magnetic force due to the coil is practically zero. The coil 9 may be of a concentric or eccentric spiral form and may be supplied by a separate source of electricity.
Patent GB-432338-A (GB)
Title: Improvements in liquid oxygen explosives
IPC: C06B43/00
Filed: 1934-11-30
Abstract: 432,338. Blasting - cartridges ; explosives. LIGETFOOT REFRIGERATION CO., Ltd., and LANCE, A. E., Bush House, Aldwych, London. Nov. 30, 1934, No. 34468. Drawings to Specification. [Classes 9 (i) and 9 (ii)] An absorbent for liquid oxygen for blasting- cartridges comprises cellulosic materials, such as sawdust, cork, and peat, graded to pass through a 36-mesh screen but not through a 60-mesh screen. Metallic ingredients such as aluminium and ferro-silicon, when included, are similarly graded. Other ingredients such as magnesium carbonate and kieselguhr may also be used to the extent of 10 to 15 per cent. The absorbent is packed to a density of 0À3 to 0À5 in a cartridge case, which may consist of three wrappings of paper, plain or waterproofed by impregnation with magnesium carbonate or coating with asbestos paint. The cartridge is fired by an electric detonator inserted in one end. Specification 432,308, is referred to for similar blasting cartridges in which hydrocarbons of high boiling-points and of pasty consistency at ordinary temperatures are added to absorbent cellulosic materials.
Patent GB-430318-A (GB)
Title: Improvements in connection with anti-dazzle lamps for motor vehicles
IPC: B60Q1/24
Filed: 1933-12-08
Abstract: 430,318. Vehicle lamps. CONNOLLY, T. R., Main Street, Castlerea, Co. Roscommon, Irish Free State. Dec. 8, 1933, No. 34520. [Class 75 (iv)] A lamp 2, mounted on the offside mudguard 1 or other position on a motor vehicle, has one reflector 3 facing rearwardly and adapted to direct light onto the road beside and behind the car, and another reflector 4 directing light diagonally forward and to the near side, each reflector having a coloured disc, e.g. a red disc 5 on the rearward reflector 3 and a green disc 6 on the forward reflector, or discs partly coloured and partly frosted or clear. Alternatively, two separate lamps with coloured or frosted discs may be used, one facing rearwardly to the offside and the other facing forwardly to the near side. Reference has been directed by the Comptroller to Specifications 281,317, [Class 75 (iv)], 372,280, and 382,231.
Patent GB-808868-A (GB)
Title: Fading electrical circuit
IPC: G05D3/12
Filed: 1956-11-13
Abstract: 808,868. Automatic control systems. COLLINS RADIO CO. Nov. 13, 1956 [March 30, 1956], No. 34712/56. Class 38 (4). In an arrangement for fading in one signal and fading out another, a selected signal is applied to a unit producing a D.C. output across a condenser in series with reversely connected rectifiers, the condenser being connected in series with a resistor across the input of a D.C. amplifier and bias to render the diodes conductive being removed when the signal selector is operated and slowly re-applied afterwards. In Fig. 1 any one of three A.C. or D.C. signals applied to terminals 10, 11, 12, e.g. from a gyroscope, omni-range radio receiver and a glide-path radio receiver of an automatic pilot, may be selected by manual operation of a remote switch 21 to energize the appropriate relay A, B or C applying the chosen signal to an amplifier or converter 13 producing a corresponding D.C. output signal which is applied through reversely connected rectifiers 62, 63 to a condenser 60. This D.C. output signal is applied to a further amplifier 56 the output of which is utilized to control a servo system (not shown). Rectifiers 62, 63 are normally biased to be conductive by a D.C. source 73 as shown, but operation of switch 21 to select a different signal temporarily disconnects a D.C. source 23 and de-energizes a relay 36 so that rectifiers 62, 63 are rendered non-conductive by disconnecting source 73. The original signal stored by condenser 60 then begins to fade out by discharge through a resistor 61. When switch 21 reaches its new position a condenser 52 charges from source 23 through a resistor 53 until its voltage is sufficient to energize relay 36 again. A condenser 71 then begins to charge from source 73 through a resistor 74 so that the bias on rectifiers 62, 63 steadily rises to fade in the new signal by progressive raising of the amplitude limit. A circuit 31 prevents the energization of relay 36 during noise bursts.
Patent GB-1223649-A (GB)
Title: PROCESS FOR THE PREPARATION OF 2-(1'-H-HALOGENOALKYL-delta<2>-OXAZOLINES
Inventor: SCHERER OTTO
IPC: C07D263/16
Filed: 1969-07-10
Abstract: 1,223,649. 2 - (1<SP>1</SP> - H - halogenoalkyl) - #<SP>2</SP>- oxazolines. FARBWERKE HOECHST A.G. 10 July, 1969, No. 34773/69. Heading C2C. 2 - (1<SP>1</SP> - H - halogenoalkyl) - #<SP>2</SP> - oxazolines of the general formula wherein R is a hydrogen, fluorine or chlorine atom or a group of the formula F 3 C(CF 2 ) n -, in which n is 0 or an integer from 1 to 10 inclusive, and X is a fluorine or chlorine atom, are prepared by reaction of an olefine of the general formula R-CX=CF 2  with ethanolamine.
Patent GB-915231-A (GB)
Title: Improved hydraulic motor
IPC: F03C1/04
Filed: 1960-10-11
Abstract: 915,231. Liquid - pressure engines. ATELIERS DE POCLAIN-BATAILLE ET FILS. Oct. 11, 1960 [Nov. 13, 1959], No. 34783/60. Class 69 (2). Speed-varying means in an hydraulic, radialcylinder motor comprise hydraulically-actuated piston valves, within the cylinder block, which are controllable to cut-off the hydraulic supply to selected working cylinders. A rotatable cylinder block 2 houses working cylinders 2b which are supplied by a fixed distributer 4. Pistons 3 in cylinders 2b engage cam tracks 6 through followers 7 and are urged inwardly by an elastic strip 11. Distributer 4 has alternating inlet and outlet ports on its cylinder block-engaging face (Figs. 7 and 8, not shown). Pressure fluid enters and leaves cylinders 2b through passages 2a alignable with the distributer ports and controlled by piston valves 16. Grooves 16a on valves 16 may be positioned to connect cylinders 2b either to passages 2a or to the casing 1. Cylinder 2b 1  has no piston valve and serves as a pressure-fluid reservoir for the piston valves. A control valve member 12, axially slidable within a bore 2e by a rod 13, serves to connect cylinder 2b 1  to one or more valve cylinders 2d, the valve cylinder inlets 2f opening at selected points along the bore 21 so that one or more of the piston valves may be actuated according to the position of member 12. Locating means for member 12 comprise grooves 12a and a spring-loaded ball 18. Member 12 rotates with the cylinder block and is connected to operating rod 13 through a bearing 14. Piston valves 16 are urged inwardly by an elastic strip 20, their outward movement being limited by stops 17. An exhaust port 1e is provided in the casing 1.
Patent GB-1081486-A (GB)
Title: Improvements in or relating to electronic circuits
Inventor: EAGLES ANTHONY JOHN
IPC: H01L35/00
Filed: 1963-09-03
Abstract: 1, 081, 486. Automatic temperature control. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug.14, 1964 [Sept. 3, 1963], No.34833/63. Heading G3R. An automatic temperature control system whereby the temperature of a body 1 of semiconductor material is maintained constant during operation comprises a thermocouple 7 and an electric heating element 9 associated with the semi-conductor body 1, the output of the thermocouple 7 being fed to a control unit 11 so as to control the flow of current to the heating element 9. The thermocouple 7 may be replaced by another type of temperature sensor and the heating element 9 with other types of heating or, if necessary, a refrigerating element, possibly of the dissimilar junction type.
Patent GB-618243-A (GB)
Title: Improvements relating to electro-pneumatic brake apparatus
IPC: B60T13/68
Filed: 1945-12-22
Abstract: 618,243. Fluid-pressure-operated brakes. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. Dec. 22, 1945, No. 34841. [Class 103 (i)] [Also in Group XXXVII] The fluid-pressure in a brake-operating chamber is regulated in accordance with the setting of a control member, by means of electromagnetically operated supply and exhaust valves the circuits of which are controlled by contacts movable by the control member in co-operation with a piston subject to the pressure in the chamber acting against a spring. The system shown is suitable for the landing wheel brakes of aircraft and comprises a relay valve device 7 as described in Specification 560,201, supplying brake operating means 22. The windings of supply and exhaust valves 8, 9 are connected to contacts 12a, 12b carried by a block 15 slidable in a casing 13 and connected by a link 16 to a lever 17 actuated by the operator. A conducting disc 14 is acted on by an eccentrically arranged spring 19 which serves also to connect the disc to the current source 19. A piston 13c in the casing 13 subject by pipe 21a to the pressure in the operating chamber of the brake 22 is urged downwards by a spring 25 and carries a rod 24 engaging the disc 14. Normally the disc 14 being separated from the contacts 12a, 12b, as in Fig. 1, so that the valves 8, 9 are deenergized, the valve 9 is open and the valve 8 is closed. The supply and exhaust valves 7d, 7e are thus respectively closed and open. If the block 15 is moved upwards to a limited extent by lever 17 both valves 8, 9 are energized by the disc 14 seating on the inturned ends of the contacts 12a, 12b and are thus opened and closed respectively. Pressure fluid is supplied from the reservoir 5 by pipes 6a, 11 to the chamber 7b of the relay valve, whereby the valve 7d is opened to supply the brake-operating chamber 22 the pressure in which acting on the piston 13c moves the piston upwards to engage the disc 14. Due to the eccentric arrangement of the spring 18 the disc tilts as shown in Fig. 4, thus de-energizing the valve 8 . and cutting-off the fluid supply to the brake-operating chamber 22 and the piston 13c. To release the brake the block 15 is moved downwards to return the plate to the horizontal position so that the valve 9 as well as the valve 8 is de-energized. The block 15 may be arranged for operation by the steering gear of an aircraft or vehicle for differential braking.
Patent GB-302276-A (GB)
IPC: F02M35/08
Filed: 1928-11-26
Abstract: 302,276. Tecalemits Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Dec. 13, 1927, [Convention date]. Density separators; filtering.-An air cleaner for use with internal - combustion engines, has a filter through which the air normally passes, and an alternative curvilinear path of greater resistance than the filter which the air follows when the filter path becomes obstructed. The filter consists of felt 4 fixed in the rim 3<1> of a circular diaphragm 3 carried by a plate 1 which forms one side of the casing of the apparatus and is provided with the outlet 2 leading to the carburettor. The other side 6 of the casing has the inlet 7 and is secured to the plate 1 by hook fastenings 8. The diaphragm 3 has an opening 3<2> in its upper part. The outlet 2 has a shutter 9 normally held in the open position by a spring 12 on its pivot, but which can be operated by the lever 11 to the closed position for starting. During working the air enters the inlet 7, passes through the filter 4 and emerges by the outlet 2. Most of the separated dust passes through the outlet 13. As the filter becomes choked a part of the air stream passes through the space 14 and opening 3<2> to the outlet 2. Owing to the curved path, the dust is thrown outwards by centrifugal force and passes behind the diaphragm 3 into the chamber 16. The deposition and discharge of the dust are facilitated by the openings 17, 18.