baber/WOPTO huggingface dataset:
Patent GB-416926-A (GB)
Title: Improvements in devices for delivering measured quantities of liquids
IPC: G01F11/32
Filed: 1933-02-25
Abstract: 416,926. Delivering measured quantities of liquid. BUDD, H., Floyds, Charlton Road, Old Charlton, London. Feb. 25, 1933, No. 5758. [Class 106 (v).] A device for delivering measured quantities of liquid comprises in combination, a delivery tube 6 adapted to be fitted to the outlet of the supply container (not shown) a measuring chamber 18 having a limited vertical sliding movement on the tube, means for forming an air tight joint between said delivery tube and the chamber, a spring-controlled valve within the measuring chamber coaxial with the delivery tube and means carried by the valve adapted to close the inner end of the delivery tube. In one form, Fig. 2, the measuring chamber is formed by a glass cylinder 3 clamped between two end plates 1 and 2. The lower plate 2 is provided with a central double coneshaped aperture 10 the lower part of which forms a seating for a valve 11 having a stem supported in a spider 13 and carrying at its upper end an adjustable stop or closure means 15. A spring 16 normally urges the valve on to its seating. In operation, liquid enters and fills the chamber to the level of the lower end of the tube 6. A receiving vessel is pressed up against the plate 2 and the chamber slides upwardly, the stop member 15 closes the outlet of the tube 6, an air inlet is opened by way of vent 19 and slot 20 and further movement unseats the valve and allows the discharge of the measured quantity. In a modification, Fig. 3, the measuring chamber slides on a sleeve 23 adjustably screwed on the tube 6 so as to vary the amount of liquid delivered by an adjustment of the position of the lower end of the tube relative to the chamber. The stop member 30 is slidable on the valve stem and when it engages the lower end of the tube 6, actuates the valve through a lazy-tongs device comprising links 32 mounted on the stop and at the other end pivotally connected at 36 to links 33 mounted on the valve and links 37 mounted on the lower plate 2.
Patent GB-597892-A (GB)
Title: Improvements in or relating to adjustable sleeves for use in conjunction with tubes,rods and the like
IPC: F21V21/26
Filed: 1945-03-08
Abstract: 597,892. Friction grips. HINTON, T. H. and MIDDLETON & CO., Ltd., J. W. March 8,1945, No. 5798. [Class 44] An adjustable support for lamps or other articles of the kind comprising a sleevelike casing 3 with an internal friction-grip wovenwire or rubber tube 8 adapted on slight extension to grip an upstanding support rod 2 peripherally, the load being applied to the lower end of the frictiongrip tube to ensure such slight extension and the friction grip being releasable by operation of a bush 10 slidable on the rod to shorten the friction grip tube and so expand it peripherally, has the releasing bush 10 extended upwardly beyond the sleeve-like casing 3 so that it can be directly hand-actuated as by a flange thereon. The flanged bush 10 is retained in an end cap 4 by a circumferential rib 11 and is adapted on depression to engage a soldered-ring end 9 of the woven-wire tube 8. The sleeve-like casing 3 is supported from a collar 7 at the lower end of the friction-grip tube through a spring 6 which bears against the upper end cap 4. The sleeve may support an electric light fitting, a music stand, a display stand or a microphone. Specification. 427,401 is referred to.
Patent GB-773076-A (GB)
Title: Improvements in or relating to apparatus for storing information in electronic tubes
IPC: H01J31/58
Filed: 1954-02-26
Abstract: 773,076. Electric digital-data-storage apparatus. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 26, 1954 [Feb. 27, 1953], No. 5822/54. Class 106 (1). In the arrangement described in Specification 773,075 wherein data stored in a secondary emission multi-anode thermionic tube is continually being read and maintained by applying a train of positive pulses to the control grid of the tube, the data is introduced into the tube by applying suitably timed negative pulses to the control grid and to the cathode, by means of a bi-stable gas discharge tube, Fig. 5. In the preferred embodiment, two marking procedures are used, one for causing the anodes to assume their " high " or " low " conditions in dependence upon the values V<SP>0</SP>0 and V<SP>1</SP>0, Fig. 4, of the marking potential Vo applied to them, and one to cause every anode to assume its " low " condition irrespective of the applied marking potentials. To mark the anodes " high " or " low " in correspondence with the applied marking potentials, the marking potentials are applied, and the gas-discharge tube is caused to fire on its right-hand side, thereby temporarily lowering both 'the grid bias potential Vg, Fig. 7, and the cathode potential Vk (chain-line), the result being that when the tube current Jk (which is pulsed because of positive pulses applied via a transformer P) returns, the effective characteristic curve for each anode is as shown dotted in Fig. 4, and thus each anode immediately assumes its " high " or " low " condition on this dotted characteristic in accordance with the applied marking potential of either V<SP>0</SP>0 or V<SP>1</SP>0 respectively ; also as the cathode potential gradually rises to its normal zero level with the grid bias always an amount Vgk below it (this being achieved by a diode combination D1, D2) the dotted characteristic tends to the full-line normal characteristic, and thus the anodes have been marked in accordance with the applied potentials. In order to cause every anode to assume its " low " condition irrespective of the applied marking potentials, the gas discharge tube is caused to fire on its left-hand side, thereby temporarily lowering the potential Vg, Fig. 6, of the control grid and resulting in each anode assuming its " low " condition because the storage condensers C will each have discharged. Other marking procedures are discussed including the procedure of making the cathode so negative that every anode is set in its " high " condition irrespective of the applied marking potential.
Patent GB-1215912-A (GB)
Title: A demodulator circuit arrangement
IPC: H04J3/04
Filed: 1969-02-04
Abstract: 1,215,912. Pulse modulation circuits; transistor gate and store circuits. TELEFONBAU UND NORMALZEIT G.m.b.H. 4 Feb., 1969 [6 March, 1968], No. 5871/69. Headings H3T and H4L. In a demodulator for amplitude-modulated pulses, a gating circuit comprising a diode in series with the emitter-collector path of a transistor is connected between the signal input and a storage capacitor and means connected to the base of the transistor render it conductive at predetermined time intervals. As shown, time division multiplex signals are applied at SS and negative gating pulses are applied at T during the channel time slot. Each gating pulse blocks transistor T2 so that transistor T1 conducts and the storage capacitor CS is connected to input SS via transistor T1 and diode D. If the capacitor is charged to a potential higher than the signal voltage the capacitor will discharge via T1 and D until the two potentials are equal. Similarly, if the capacitor is charged to a lower potential than the signal voltage it will receive a charge until the two potentials are equalized. The potential across the capacitor CS is supplied via a high input impedance amplifier T3, T4 to a low-pass filter (not shown). A field effect transistor or thermionic valve may replace amplifier T3, T4.
Patent GB-1385396-A (GB)
Title: Production of indole
IPC: C07C17/02
Filed: 1974-02-08
Abstract: 1385396 Indole RUTGERSWERKE AG 8 Feb 1974 [10 Jan 1974] 05931/74 Addition to 1362510 Heading C2C Indole is prepared by heating o-ethylaniline in the gaseous phase and in the presence of water vapour and of a silica catalyst containing chromium dioxide, at least 15% by weight of copper and at least 8% by weight of a chromate of a metal from Group IIa of the Periodic Table. The preferred catalyst comprises 55-65% by weight of silica, 18-24% of copper, 8-10% of barium chromate and 2-4% of chromium dioxide. Any o-aminostyrene produced may be recycled.
Patent GB-342920-A (GB)
Title: Improvements in change-speed gears for use in motor driven vehicles and the like
IPC: F16H3/08
Filed: 1930-02-24
Abstract: 342,920. Variable-speed gearing. EDWARDS, J. L., 76, Warwards Lane, Selly Park, Birmingham. Feb. 24, 1930, No. 6017. [Class 80 (ii).] To facilitate changing speed in variable-speed gearing for motor vehicles, of the type comprising aligned driving and driven shafts with a parallel layshaft 5, Fig. 1, and sliding wheels 2 on the driven shaft 1, a free-wheel clutch of the ratchet, roller, slipper, or pivoted pawl type is provided between a boss 6 on the constant mesh layshaft wheel 4 and a boss 11 on the coaxial layshaft reduction gear unit 10. A sleeve 7, Fig. 1, is splined on the boss 6 and has facial ratchet teeth coacting with teeth on the boss 11. The sleeve is pressed into engagement by a spring 12 or by a series of springs carried in axial recesses in the sleeve 7 and pressing against the wheel 4. The sleeve 7 may be splined on the gear unit boss and engage teeth on the wheel 4. The modification shown in Fig. 5 uses a roller clutch having spring- pressed rollers 18 to wedge in recesses between a boss 6b and a boss 16. In further modifications these rollers are replaced by tapered slippers, or the boss 16 carries spring-pressed pivoted pawls engaging internal ratchet teeth in the boss 6b. Bosses 6b and 16 may be carried on either element.
Patent GB-781071-A (GB)
Title: Improvements in or relating to deck-chairs
IPC: A47C4/40
Filed: 1954-03-02
Abstract: 781,071. Folding chairs. ANSTEAD, C. D. R. April 6, 1955 [March 2, 1954; May 11, 1954], Nos. 6073/54 and 13689/54. Class 52(2) A deck chair with frames forming front and rear leg members 10, 12 connected by cross-bars 11, 13 and pivoted at 14 and having a supporting strut member 15 consisting of side elements 16 pivotally connected at 17 to the front leg members and connected by a cross bar 18 the legs 12 being notched, has the strut member provided with brackets 24 having projections .25 which move beneath flanges of guide members 22 having a downwardly inclined ,portion 23 to urge the crossbar into the lowermost notches 19 and prevent collapse of chair if the bar 18 becomes disengaged from other notches. In a modification brackets 24 are replaced by grooves in the rear legs.
Patent GB-1405025-A (GB)
Title: Tubular protoscope or sigmoidoscope instrument
IPC: A61B1/31
Filed: 1973-02-07
Abstract: 1405025 Endoscopes etc; liquid-injecting and liquid-drainage devices J R BROWN 7 Feb 1973 6124/73 Heading A5R A proctoscope or sigmoidoscope A comprises a longitudinally extending tubular body 14 having a central passage P extending therethrough, a plurality of conduits such as 20 extending longitudinally externally of said body, each with a part annular opening adjacent one end of said body and provided with means 41 controlling the flow of injection fluid under pressure through said conduits, a further plurality of conduits such as 21 extending longitudinally externally of said body and each having a part-annular opening adjacent said one end, means being provided for applying suction to said second conduits, and means 31 controlling the flow of fluid through said second conduits. The conduits 20, 21 are located alternately around the body 14, the conduits being defined by the body 14, an outer tube 15, and radial members (18), Fig. 2 (not shown). The conduits 21 are connected to a common suction manifold S and the conduits 20 to a common injection manifold M through which the water &c is supplied. A light may be inserted into the passage P to facilitate visual examination. Insertion of the instrument may be facilitated using a tube (I), Fig. 3 (not shown) having a rounded tip (T').
Patent GB-124220-A (GB)
Title: Improvements in Processes for Recovering Oils and Fats from Soap-free Waste-water.
IPC: C11B13/00
Filed: 1919-03-12
Abstract: 124,220. Naamlooze Vennootschap Anton Jurgens Vereenigde Fabriekin. March 9, 1918, [Convention date]. Recovering fats and oils from waste waters.- A minute quantity, such as .01-.02 per cent, of an electrolyte is added to the soap-free water to be treated. This causes the very fine globules to coalesce. The oil or fat is then amenable to treatment with solvents or in a fat-separator.
Patent GB-638070-A (GB)
Title: Improvements in or relating to combustion systems for operation in high velocity airstreams
Inventor: WALKER DANIEL NORMAN
IPC: F23R3/46
Filed: 1947-03-04
Abstract: 638,070. Generating combustion products under pressure. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. March 4, 1947, No. 6172. [Class 51 (i)] In a combustion apparatus for gaseous and liquid fuels in which combustion has to be supported by a fast-moving ducted gas flow, e.g. as in gas turbines or other jet-propulsion power units, a zone of at least initial combustion is defined by a combustion chamber 15 within the duct 13 and a diffusion system, comprising diffusing nozzles 22a, 22b, structurally distinct from the chamber 15 and the duct 13, which is arranged to receive gas, e.g. air, from the supply and to deliver a controlled diffused flow into the duct 13 downstream of the upstream limit of the combustion zone. The diffusing nozzles are arranged in pairs 22a, 22b, each pair being supplied from the air compressor through a pair of ducts bolted to the wall of the compressor and merging in V-form to a single outlet-which may be subdivided by splitters. The gas is diffused gradually in the nozzles 22a, 22b, which change smoothly in cross-section from rectangular to circular, and are disposed between the annularly arranged combustion chambers 15 into which air passes through axially-spaced rows of ports 22. The fuel is injected through a nozzle 17 in an upstream direction against a conical baffle 26 provided with air ports 27. Specification 599,257 is referred to.
Patent GB-932249-A (GB)
Title: 17ª -alkoxy-3-keto-19-nor-testosterones and a process for their manufacture
IPC: C07J1/00
Filed: 1960-02-22
Abstract: The invention comprises steroids of the general formula <FORM:0932249/IV(a)/1> wherein R1 represents an alkyl group containing 1 to 3 carbon atoms and Z represents the group <FORM:0932249/IV(a)/2> and the preparation thereof by etherifying the corresponding 17b -hydroxy steroid compounds, for example by reacting the required alkyl halides with the alcoholates of the 17b -hydroxy steroid compounds (prepared by reaction with sodium in liquid ammonia in the presence of a trace of ferric nitrate)-in this process it is preferable to convert the reactant into a 3-enol ether, etherify at the 17b -position and regenerate the 3-keto group from the resulting 3-enol ether of a 17b -alkyl-ether 19-nor-testosterone, and by treating the required 17b -hydroxy steroid compounds with diazo-alkane.
Patent GB-607958-A (GB)
Title: Improvements in or relating to treatment of latex and like aqueous dispersions of rubber
IPC: C08C1/02
Filed: 1945-03-13
Abstract: 607,958. Electrolytic treatment of aqueous dispersions of rubber. BOIRY, J. F. March 13, 1945, No. 6229. Convention date, Feb. 26, 1944. [Class 41] Latex or natural or artificial aqueous dispersions of rubber are subjected to electrolysis in the presence of one or more substances which favour a depolymerizing action of oxygen on rubber, precautions being taken to interfere with deposition of rubber on the anode, as e.g. by imparting a motion to the dispersion. Substances which favour a depolymerizing action of oxygen on rubber may be substances which are capable of disengaging oxygen or oxidation catalysts or peptizing agents, examples all of which are given in the Specification. One or more stabilizing agents may be added to the dispersion to prevent its coagulation. Any peptizing agent remaining at the end of the electrolysing operation may be removed, e.g. by means of oxidising agents to avoid any detrimental influence they may have. Any of these oxidising agents remaining or any of the other substances which favour the depolymerizing action are destroyed at the end of the electrolysing operation, preferably by reduction as by reversing the electric current and if need be, or alternatively by adding reducing agents. Several specific examples are given. The Specification states that anodes of a material, e.g. lead, which give rise to the production of one or more substances, e.g. lead peroxide, which favour a depolymerising action of oxygen on rubber may be employed. The deposit of rubber found on the anode, in spite of the precautions taken to prevent this, may be used as softened rubber.
Patent GB-797358-A (GB)
Title: Improvements in or relating to the application of soldering material to an assembly of component leads and conducting members
Inventor: WILLIAMS HILARY FRANCIS CLAUDE
IPC: H05K3/34
Filed: 1955-03-02
Abstract: 797,358. Soldering; making printed circuits. COSSOR, Ltd., A. C. Feb. 28, 1956 [March 2, 1955], No. 6230/55. Classes 83 (2) and 83 (4). In soldering an assembly of component leads and terminations on a support body, the assembly is located on one side of a movable band, non-wettable by solder and being apertured such that the terminations are exposed on the other side of the band, and the assembly is moved with the band through a region in which solder is brought into contact with the assembly. In an embodiment a stainless steel, chromium plated or aluminium endless belt driven by four sets of rollers arranged at the corners of a rectangle is provided with a number of patterns of apertures and with locating devices for co-operation with locating apertures or fixtures on the support body. A flux container with jet spray, a heater and a solder container with jet spray, above which a non- oxidizing atmosphere, e.g. of CP 2  may be provided, are located beneath the upper horizontal portion of the belt. A support body, e.g. a printed circuit with component leads located in terminations and arranged in the belt apertures is moved by the belt to be flux sprayed, heated and sprayed with solder. A cutting device, e.g. a series of axially rotating blades nip off excess lengths of leads. The presence of an assembly on the belt may actuate switches to start spraying when required. The terminations are electrically conducting members on the support body, e.g. eyelets or apertured conducting surfaces.
Patent GB-491513-A (GB)
Title: Toothed gearing
IPC: F16H1/22
Filed: 1937-03-03
Abstract: 491,513. Securing wheels on shafts ; toothed gearing. BAILEY, R. W. H. March 3, 1937, No. 6341. [Classes 80 (i) and so (ii)] Relates to gearing in which a central wheel meshes with surrounding planets or idler wheels and consists in means for mounting the central wheel that it may move in a plane normal to the shaft. As applied to a reduction gearing for driving an airscrew, the crankshaft A has an extension A<1> and drives a series of four double idlers B, B<1> through a central wheel C, the idlers B<1> meshing with an annulus D on the airscrew shaft D<1>. At the end of the shaft A<1> are external splines E which engage internal splines on a sleeve E<1> which is prevented from moving towards the airscrew by a split ring E<2>. At the other end, the sleeve carries external splines which engage internal splines in the central wheel C. A shoulder E4 on sleeve E<1> limits movement of the latter away from the airscrew. The flange portion of the shaft A<1> has, bolted to it, a split ring F<2> a projecting annular flange F<3> on which enters a groove in the boss of the central wheel to prevent it from moving axially and to limit its radial movement. The groove and flange may be interchanged.
Patent GB-549462-A (GB)
Title: Improvements in or relating to electrical engine-starting systems
IPC: F02N11/08
Filed: 1941-05-20
Abstract: 549,462. Starting prime movers. BENDIX AVIATION CORPORATION. May 20, 1941, No. 6477. Convention date, May 15, 1940. [Class 38 (iv)] [Also in Group XXXVII] Closure of a starting switch 4 energizes a starter motor 8 for an internal combustion engine and also a holding winding 16 of a contactor 15, the latter through a resistance 19. When the motor takes load by engaging a pinion 13 with the engine flywheel gear 14 the potential developed across a resistance 6 energizes a coil 26 causing a temporary short circuit of the resistance 19 and the closure of the contactor 15.
Patent GB-196764-A (GB)
Title: Improvements in and relating to machines for filling and closing tubes for medicated and other semi-liquid substances
IPC: B65B7/14
Filed: 1922-03-06
Abstract: 196,764. Day, W. H. March 6, 1922. Tubes or containers, collapsable.-Relates to a machine for filling tubes with medicated pastes and like semi-liquids and closing them, and of the type in which the open tubes are carried in succession beneath a supply pipe and filled, then passed to a position between the cam-operated members where the open end is closed and folded over. According to the invention the filling mechanism comprises a pump coacting with means for lifting the tube into a position encircling the feed pipe, and a shutter valve in the pump controlling the flow from the reservoir into the tube. The closing mechanism comprises too or more opposite pairs of cam-actuated horizontally moving plates, and means are provided for clinching a clip over the closed end of the tube. The tubes are carried through the machine in carriers 6, Figs. 1 and 7, on an endless chain 7 passing around sprocket wheels 8, 9 and through a guiding channel 10. The chain is actuated intermittently by Geneva-stop mechanism to bring each tube beneath a hopper 30. The carriers 6 are fitted with adapters 84 so that varying sizes of tubes can be accommodated, grooves 89 providing a space for the tube when fiattened by closing. The adapters are secured in position by spring catches 85. On arrival beneath the hopper 30, Figs. 1 and 11, a camoperated member 40 lifts the tube against a bellmouthed guide 322 and over a feed pipe 32. A pump 31 withdraws material from the hopper 30 through a valve 34, and, on the valve being turned by levers 37, 38, forces it into the. tube with sufficient pressure to push the tube off the feed pipe and back into the carrier 6. The pump is adjustable and the guide 322 and feed pipe 32 are interchangeable. The filled tube is next brought beneath closing mechanism operated by cams 49 on a shaft 17, Figs. 1 and 15. The mechanism comprises three pairs of sliding plates 45, 46, 47 and a vertically reciprocating member 51. The three plates first move together in unison and flatten the end of the tube. The plates 47, Fig. 17, then slightly separate and move to the left folding over the top of the flattened part. The plates then assume the positions shown in Fig. 18 and the member 51 descends to bend down the fold. The left hand plate 46 moves to the right as shown in Fig. 19 and doubles the fold. The fold is redoubled bv similar operations by the plates 45, supporting plates 56 remaining in the engaging position until the closing is complete. The filled tube next arrives beneath devices 71, Figs. 1 and 24, for applying a clip on the closed end. The clips are fed by a plate on an arm 61 and are clinched by levers 71 operated by rollers 73 working in cam-slots 74 in a disc 68. A rod 75, Fig. 1, on a lever 76 pushes the completed tubes from the carriers 6 into a channel 82.
Patent GB-788349-A (GB)
Title: Process for the synthesis of 1-bromo-4-chlorobutane
IPC: C07C29/64
Filed: 1956-03-02
Abstract: 1-Bromo-4-chlorobutane is prepared by the addition of bromine to a mixture of phosphorus and d -chlorobutanol, the temperature of the mixture being held, during the addition of bromine, to a value close to 0 DEG  C.  The 1-bromo-4-chlorobutane is preferably separated from the reaction mixture by steam distillation, dried by azeotropic distillation and redistilled in presence of an organic base such as diethanolamine.  The d -chlorobutanol is preferably prepared either by the action of gaseous hydrochloric acid on boiling tetrahydrofuran or by heating tetrahydrofuran under reflux with aqueous hydrochloric acid; the raw product from the first method being sufficiently pure to be mixed directly with the phosphorus.  Specification 758,895 is referred to.