baber/WOPTO huggingface dataset:
Patent GB-470429-A (GB)
Title: Improvements in and relating to apparatus for obtaining high tension alternating current from low tension direct current
IPC: H02M1/22
Filed: 1936-02-26
Abstract: 470,429. Converting. JONES, R. J. ELSOME-. Feb. 26, 1936, No. 5749. [Class 38 (ii)] An arrangement for obtaining high voltage current for supplying for example a neon tube 29 from a low voltage source such as a car battery 5 comprises a transformer 1, the primary circuit of which includes an interrupter 6 actuated by a motor comprising a rotor 15 disposed between polepieces 14 projecting from the core 12 of the transformer. The interrupter may comprise cam-actuated contacts or, as shown, may be a rotary commutator co-operating with a brush 7, slip-ring 9 and brush 8. The brush 7 is mounted on an arm 40 and is adjusted angularly so that polepieces 27 on the rotor receive impulses when the primary circuit is completed which maintain rotation. To ensure self-starting an auxiliary coil which is momentarily energized through an additional contact on a starting switch may be provided to bring the polepieces 27 into starting position. Auxiliary high resistance brushes such as 37 may be associated with the main brush 7. The transformer primary may be centre-tapped and its ends brought to slip-rings co-operating with two sets of segments on the commutator so that symmetrical A.C. may be produced in the secondary. A second transformer feeding a separate load circuit may be associated electrically with the combined transformer and interrupter.
Patent GB-124820-A (GB)
Title: Improvements in connection with a System of Laying Pipes and the like Underground.
Inventor: ALLEY STEPHEN EVANS
IPC: F16L1/028
Filed: 1916-04-25
Abstract: 124,820. Alley, S. E. April 25, 1916. No Patent granted (Sealing fee not paid). Bore-hole apparatus. - In a system oi' laying pipes underground from a trench or cutting by forcing them forward by a machine, means are provided for lubricating the soil. In the arrangement shown, the guiding-head II described in Specification 13709/15 is employed, and the first length of pipe A is closed at each end by disks C, D. In the disk D is fitted a non-return valve E, and a discharge valve G in the front disk. The pipe is partly filled with water or other liquid, and air is pumped in through the valve E. In operation, the liquid escapes slowly through the valve G.
Patent GB-111426-A (GB)
Title: Improvements in Metal Connexions for Joining Wooden Parts of Bedsteads, Settees and other Articles of Furniture.
Inventor: HARRIS MARKS
IPC: F16B12/58
Filed: 1917-04-27
Abstract: 111,426. Harris, M., and Hart, E. April 27, 1917. Joints and connexions.-A joint for wooden parts of furniture such as bedsteads, settees, &c. comprises a plate 4 having a transverse pin 5 for engagement with a bracket 3, and an enlargement 6 by which it is retained in a slot cut in a rail or in a member secured thereto. The bracket 3 has a cross-slot 12 through which the pin 5 is introduced, a slot to receive the plate 4, and inclined surfaces 13 which engage the pin 5 and cause the parts to become wedged together.
Patent GB-329054-A (GB)
Title: Machine for hardening the tooth flanks of spur wheels
IPC: C21D9/32
Filed: 1929-02-25
Abstract: 329,054. Klopp, F. Feb. 25, 1929. Hardening.-In an apparatus for hardening the teeth of spur wheels of the kind described in Specification 303,196, the wheel d is rotated periodically, one tooth gap at a time, by a spring-controlled pawl m mounted on one end of a rod h, the roller k at the other end of which is pressed by a spring i against an eccentric l on an axle f. The rod h is slidably mounted on an arm g mounted on an extension of the bearing t of the axle f. The burner p is mounted on an ajustable carriage o and is provided with a @ling device v which depends into the cooling liquid in the tank a.
Patent GB-962356-A (GB)
Title: Pipette assembly
IPC: G01N1/14
Filed: 1962-02-16
Abstract: 962,356. Pipette assemblies. H. W. GERARDE. Feb. 16, 1962, No. 6103/62. Heading SIX. A pipette assembly for preparing blood count solutions comprises a capillary tube 15 held in a tubular mounting 16 and a reservoir 17 having an opening and a flexible and resilient part, the reservoir containing a volume of diluent 24, and the mounting being arranged to fit in and seal the reservoir with the tube extending into the reservoir, whereby in operation the capillary tube is filled with blood by capillary action, the flexible and resilient part of the reservoir is squeezed and the tube is inserted into the reservoir so that the mounting closes the opening and the blood is sucked into the diluent. In a preferred embodiment the other end of the mounting tube is then connected to the reservoir to discharge the sample through the capillary tube. As shown in Fig. 2, to which the above numerals refer, the reservoir may be sealed by plug 26 with enlarged head portion 25 displaceable into the reservoir to form a mixing head. Or alternatively, as shown in Fig. 10, the reservoir may be sealed by adaptor unit 10 mounting a lancet 41 to prick the skin.
Patent GB-1146081-A (GB)
Title: Foundry moulds and cores
Inventor: BEANEY PETER AUSTIN
IPC: B22C1/18
Filed: 1966-02-11
Abstract: 1,146,081. Foundry-mould compositions. FOSECO INTERNATIONAL Ltd. 18 Jan., 1967 [11 Feb., 1966], No. 6140/66. Heading C3N. Foundry moulds or cores are made by mixing (a) particulate refractory material with aqueous (b) alkali-metal silicate and (c) a Ca or Zn salt of boric acid; shaping; and allowing to harden. (a) may be sand. (b) may be Na silicate, with SiO 2 /Na 2 O ratio of from 2 to 3. The wt. ratio (c)/(b) may be from 0À05 to 1. Also present may be 0À01-1% wt. based on the mixture, of (d) a foaming agent, e.g. non-ionic ethylene oxide condensate with alcohols, phenols, or amines; anionic sulphates of long-chain fatty alcohols or alkyl aromatic compounds; or cationic quaternary ammonium salts; exemplified is triethanolamine alkyl sulphate. Also present may be e.g. 0À1-5% based on (d), of (e) a defrothing agent, e.g. a silicone or an alcohol, e.g. octanol. Hardening may be delayed by including a small proportion of dextrose or glucose.
Patent GB-1014256-A (GB)
Title: Improvements in or relating to the hermetic packing of articles in non-permeable containers
Inventor: COOPER GRAHAM BAPTIE
IPC: B65B25/00
Filed: 1964-02-13
Abstract: Oxidation of articles contained in a hermetically sealed container is prevented by including in the container a catalyst, a compound which in the presence of the catalyst reacts with oxygen in the container to produce water vapour, and a desiccant to absorb the water vapour; the quantities of catalyst, compound and desiccant are selected so that substantially all the oxygen in the container is converted to water and all this water is then absorbed by the desiccant.  In a preferred embodiment of the invention the desiccant is placed as close as possible to the source of production of water vapour so that temporary condensation on the articles in the container is avoided, e.g. the catalyst and desiccant are mixed together and contained in a single porous container, or a plastics sachet.  In the case of ferrous articles a corrosion preventing or corrosion reducing agent may also be introduced into the compound.  Suitable catalysts are platinized carbon, or palladium or rhodium carried by alumina, silica or calcium carbonate.  The compound may be p  methyl alcohol or methyl formate, and this may be introduced into the porous container containing the catalyst and desiccant by means of a burette, a syringe or as a spray.  Any suitable desiccant may be employed, e.g. calcium sulphate, silica gel, or activated charcoal.
Patent GB-1440192-A (GB)
Title: Microporous film
IPC: C08J9/30
Filed: 1973-02-08
Abstract: 1440192 Laminates JOHNSON & JOHNSON 5 Dec 1973 [5 Sept 1972 8 Feb 1973] 41128/72 Heading B5N [Also in Divisions A5 and C3] A flexible porous film comprises a foamed plasticized polyvinyl chloride in which at least a major proportion by weight of the plasticizer is a polymeric plasticizer of molecular weight of at least 600, the film having open cells which have a diameter less than the thickness of the film. The film may be made by mixing a liquid, which volatilizes without decomposition with a plastisol comprising polyvinyl chloride and preferably the above plasticizer, casting the mixture in the form of a film and heating the film to volatilize the liquid and gel the plastisol. The porous film may form a surgical dressing by being used as a backing on an absorbent pad for wound exudate, the other surface of the pad having a pervious facing. The film may also be used to protect stainless steel surfaces by being adhered thereto.
Patent GB-368968-A (GB)
Title: Improvements in or relating to electrical capacity measuring devices with direct reading
IPC: G01R27/26
Filed: 1931-02-27
Abstract: 368,968. Capacitance measurements. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Feb. 27, 1931, No. 6193. Convention date, March 15, 1930. [Class 37.] In measurements of capacity, a diode rectifier 7 shunted by a resistance 6 is connected in series in an alternating- current circuit with the capacity to be measured, a continuous current instrument 8 being included in the circuit of the diode and resistance. The impedance of the diode and shunt is smaller than that of the capacity to be measured at the frequency employed for the measurement. A resistance 5 is connected in series with the measuring voltage which may be given a pure sine wave form or may be deformed by passage through a glow discharge tube, the resistance functioning to prevent excessive rise of current if the measuring terminals 3, 4 are short-circuited. A screen 9, preferably earthed, is located between the measuring terminals to eliminate mutual capacity errors. A differential connection of two such measuring systems may be employed for measuring differences of capacities.
Patent GB-395079-A (GB)
Title: Improvements in hydraulic clutches
IPC: F16D31/06
Filed: 1932-03-01
Abstract: 395,079. Rotary pumps. PAGE, W. R., 78, High Street, Epsom, Surrey. March 1, 1932, No. 6200. [Class 110 (ii).] In a hydraulic coupling having a rotary pump of the crescent-chamber type mounted in an outer chamber a, Fig. 1, serving as a reservoir for the liquid, the circulation is regulated by controlling the movement of the sliding vane or vanes g upon the pump-rotor, whilst the resistance to the circulation is established at the outlet from the chamber. The vanes are provided with apertures g<2>, Fig. 5, engaged by spiral projections h upon a spindle i fitted within the driving-shaft c and having a pin k<1> working in arcuate slots c<1>, in the shaft c and in helical slots k<2> in a collar k. When the latter is moved along a keyway, the spindle i is rotated relatively to the shaft and the projections h are caused to pass into or out of the apertures g<2>. Liquid enters the pump chamber by an aperture l and leaves by an outlet m which may consist of a number of small holes m<1>, Fig. 3, controlled by a rotary ported plug-valve m<2>, the position of which may be governed by a pair of weighted bell-cranks n<1>, Fig. 6, mounted upon a cap b<1> bolted to the pump-body and pivoted to a rotatable ring p connected to an arm r secured to the plug m<2>, springs o tending to turn the bell-cranks so that the passages m<1> are open. The rotary plug valve may be replaced by a sliding or piston valve controlled by a collar upon the exterior of the shaft b. Three vanes may be employed, and the pump-chamber may be closed by a plate j recessed at j<1> to accommodate the rotor, or by a flat plate ; in the latter case the member b<1> is recessed to accommodate the weights n and the ring p.
Patent GB-869587-A (GB)
Title: Improvements in or relating to jet lift gas turbine engines
Inventor: GRIFFITH ALAN ARNOLD
IPC: F02K1/38
Filed: 1959-02-23
Abstract: 869,587. Jet propulsion plant. ROLLSROYCE Ltd. Feb. 12, 1960 [Feb. 23, 1959], No. 6243/59. Class 110 (3). In a gas turbine jet lift engine, a substantial proportion of the output from the compressor of the engine is used to cause ambient air to now through a conduit having an outlet surrounding the propulsion jet nozzle. A jet lift gas turbine engine 10 comprises a compressor 12 supplying combustion air to combustion equipment 14 feeding a turbine 16 driving the compressor. The compressor 12 comprises a lowpressure part 18 and a high-pressure part 20 connected to low and high-pressure stages 22, 24, respectively, of the turbine 16. The engine 10 is arranged in a cylindrical casing 28 to form an annular passage 30. Guide vanes 31 are provided at the passage inlet to reduce swirl. Part of the air from the low-pressure compressor 18 passes through ducts 33 and tubes 35 to the passage 30. Each tube 35 is of uniform cross-sectional area and has its outlet directed towards the downstream end of the engine. A further series of guide vanes 36 are arranged to eliminate any swirl in the air passing into the straight portion of the casing 28. The air from the tubes 35 which may be 60% of the compressor output acts as an ejector and causes ambient air to be drawn into the passage 30. The noise of the jet is silenced by the annulus of air from the passage 30 surrounding the stream of exhaust gases. The engine may have a single compressor.
Patent GB-1074604-A (GB)
Title: Automatic telephone equipment
IPC: H04Q3/42
Filed: 1966-02-11
Abstract: 1,074,604. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 11, 1966 [March 26, 1965], No. 6250/66. Heading H4K. When a called subscriber fails to reply after prolonged ringing, the call is automatically answered, an indication is given at the called sub-station and the calling and called numbers are registered so that the call may be set up at the instance of the called subscriber when he becomes available. A calling subscriber who desires this service dials first an instruction digit which results in the application of continuous instead of interrupted ringing current, and the sub-stations, or some of them, are provided with a relay R, Fig. 1, shunted by a capacitor C2 which responds in the former case, trips the ringing and operates an indicator K. A call between subscribers A1, A2, for example, or between an incoming line FL and a subscriber, is set up under the control of a register REG with the aid of markers MD, MG. The instruction digit, if dialled, results in the operation of a relay in the link CR to provide continuous ringing. Upon the automatic reply at the called sub-station, and hanging up by the caller the information relating to the call is stored in one of a number of stores RO1 ... ROn. When the called subscriber becomes available and dials a particular digit, his number is compared with the contents of the stores RO1 ... ROn, and if agreement is found the original call is re-established. The stores may be made inoperative at certain times, for example at night time. If a caller is able to set up a number of waiting connections, announcing equipment may be provided to tell him which connection is eventually established.
Patent GB-105968-A (GB)
Title: Improvements in Rotary Engines.
Inventor: CONNOLLY THOMAS ANTHONY
IPC: F01B13/04
Filed: 1916-05-03
Abstract: 105,968. Connolly, T. A., and Connolly, J. B. May 3, 1916. Movable-abutment type; working-fluid supply; reversing details. -Two cylinders 1, 1<1> acting as intermittent abutments for their own pistons 2, 2<1> are each connected to the piston of the other cylinder by arms 4, 4<1> having sleeves mounted to rotate independently on a stationary shaft 6. Each arm carries a double-ended dog 10<1>, Fig. 5, engaging a ratchet-wheel 9 mounted loosely on one of the said sleeves and rigidly connected to a pulley wheel 11 which transmits the power. The cylinders are alternatively locked against backward rotation by pawls engaging toothed wheels rigidly connected to the cylinders. In a two-stroke internal-combustion engine, the charge is drawn through passages in the fixed shaft 6 and the said sleeves into alternately registering ducts 15, 15<1> leading to the inlet passages 14, 14<1> of the cylinders 1, 1<1> where the charge is ignited by sparking-plugs 20, 20<1> and finally exhausted through ports 23, 23'. By reversing the positions of the locking-pawls, the engine is reversed. A modification is described having straight cylinders and pin-and-slot connexions for the ends of the piston-rods 3, 3<1>.
Patent GB-260839-A (GB)
Title: Improvements in or relating to internal fittings for boxes & like containers for carrying articles of clothing
IPC: B65D81/07
Filed: 1926-03-08
Abstract: 260,839. Navarre, L. E. Patrix-. March 8, 1926. No Patent granted (Sealing fee not paid). Fittings, internal.-Dresses or articles of delicate material are suspended within a box upon rollers 1 mounted within the box by elastic strands 3, springs 7 or like resilient or flexible means. The strands, springs or like may be secured to the side walls of the box or to frames insertable into the box. A spring clip 8 or other resilient means may be provided for retaining the loose ends of the material wound upon the roller.
Patent GB-159416-A (GB)
Title: Pneumatic tyre pressure gauge
IPC: G01L17/00
Filed: 1920-03-03
Abstract: 159,416. Lees, K. F. March 3, 1920. Pneumatic-tyre pressure gauges. -In a gauge adapted to be secured to the valve nipple, no movement of the pressure-sensitive member can take place while the pressure is below the safe minimum. The cylindrical casing 12 contains a piston 17, the stem of which is surrounded by a spiral spring 19 and is bored to receive a spring- controlled plunger pin 23 adapted when manually depressed to unseat the tyre valve. The spring 19 is under compression between the piston and the cylinder head so that no movement occurs until the tyre pressure is sufficient to overcome the resistance of the spring. The downward movement of the piston is limited by a disc 28 secured to the piston stem, and pressure above the safe minimum is indicated by graduating the plunger pin 23 or the piston stem. A red mark may be placed upon the scale to denote the maximum safety pressure. The casing 12 is screwed into position on the tyre-valve nipple 16 and is locked by means of a sleeve-nut 13, with the interposition if necessary of a screwed extension piece 14. The pump connection is made at 31.
Patent GB-267525-A (GB)
Title: Improvements in and relating to continuous current dynamo electric machines
IPC: H02K23/46
Filed: 1927-03-09
Abstract: 267,525. British Thomson-Houston Co., Ltd., (Assignees of Compagnie Francaise pour l'Exploitation des Procedes Thomson-Houston). March 12, 1926, [Convention date]. Commutating-poles. -In continuous-current machines liable to variations in the electromotive force due to load changes or to internal causes, such as teeth harmonics, number of commutator segments &c., these variations are reduced by providing the commutating-poles with leakage paths and using them as inductances. In the form shown in Fig. 1, the commutating-pole consists of a central core 1 having a machined projecting part 10, for the normal commutating flux, and two leakage extensions 2, 3 the circuits of which are completed through gaps 6, adjustable by means of packing strips 9, and the main yoke 5. The inductance of the leakage path is so calculated that the magnetic effects of abrupt changes of load or of parasitic pulsations are deadened. The damping action is aided by making the pole of cast steel and mounting the windings 4 on a brass support 11. The air gaps 6 may alternatively be adjusted by forming the leakage poles with two bevelled parts 15, 16, Fig. 4, one of which 16 is movable; an equivalent effect may be obtained by the use of a constant air gap and a movable chamfered pole-piece. Fig. 3 shows an arrangement in which a magnetic leakage path 14 for the commutating poles 13 consists of an independent magnetic circuit arranged between the commutating poles around the main pole 12.
Patent GB-404488-A (GB)
Title: Improvements in or relating to machines for charging or topping up barrels with liquids
IPC: B67C3/30
Filed: 1933-03-04
Abstract: 404,488. Filling casks. TETLEY & SON, Ltd., J., and COOPER, G., The Brewery, Hunslet Road, Leeds. March 4, 1933, No. 6596. [Class 21.] Relates to apparatus for filling casks &c. of the type in which the charging head is associated with a plunger for driving home a bung &c. According to the invention the bung &c. is brought into axial alignment with the cask &c. by means of a rotary valve member 10. The member 10 has a recess 23 for corks &c. 3, which are expressed by the tubular plunger 13, through which liquid is delivered. A resilient gasket 2 forms an airtight joint at the bung hole. One annular space between the plunger 13 and the pipe 8 permits the overflow to reach the outlet 14. The plunger 13 is lever operated in a suitable frame and can be connected to a number of sources of liquid supply through a multi-way valve. The filling head is lowered or raised by a screw and nut mechanism.
Patent GB-692962-A (GB)
Title: Manufacture of oxythionaphthenes and symmetrical thioindigoid vat dyestuffs
IPC: C09B7/10
Filed: 1951-03-21
Abstract: Oxythionaphthenes and thioindigoid dyes are made by chlorinating 2,5-dimethylbenzene-1-thioglycollic acid or 3,5-dimethyl-6-chlorobenzene-1-thioglycollic acid in a solvent which is indifferent to chlorsulphonic acid and, without separation, treating the reaction mixture with chlorsulphonic acid under such temperature conditions that the final product is either the corresponding oxythionaphthene or the corresponding thioindigoid dyestuff (see Group IV (c)).  The starting material may be moist with water which is removed by distillation before chlorinating.  Solvents specified are tetrachlorethane, chloroform, carbon tetrachloride, nitrobenzene, trichlorbenzene, dichlorbenzene, dichlorethane, and acetic acid, and antimony pentachloride or ferric chloride as halogen carriers.  In examples, each of the above starting materials is reacted with sulphuryl chloride in any of the above solvents to give 2,5 - dimethyl - 4 - chlorobenzene - 1 - thioglycollic acid or 3,5-dimethyl-4,6-dichlorobenzene-1-thioglycollic acid, which are each reacted without separation with chlorsulphonic acid at 0 DEG  C. or below to give 4,7-dimethyl-5-chloro - oxythionaphthene and 4,6 - dimethyl-5,7 - dichloro - 3 - oxythionaphthene.ALSO:Oxythionaphthenes and thioindigoid dyes are made by chlorinating 2,5-dimethylbenzene-1-thioglycollic acid or 3,5-dimethyl-6-chlorobenzene-1-thioglycollic acid in a solvent which is indifferent to chlorsulphonic acid and, without separation, treating the reaction mixture with chlorsulphonic acid under such temperature conditions that the final product is either the corresponding oxythionaphthene (see Group IV (b)) or the corresponding thioindigoid dye-stuff.  The starting material may be moist with water which is removed by distillation before chlorinating.  Solvents specified are tetrachlorethane, chloroform, carbon tetrachloride, nitrobenzene, trichlorbenzene, dichlorbenzene, dichlorethane, and acetic acid, and antimony pentachloride or ferric chloride as halogen carriers.  In examples, 2,5-dimethylbenzene - 1 - thioglycollic acid is reacted with sulphuryl chloride in any of the above solvents to give 2,5-dimethyl-4-chlorobenzene - 1 - thioglycollic acid, which is reacted without separation with chlorsulphonic acid at 30 DEG  C. to give 4,41 - 7,71 - tetramethyl - 5,51 - dichlorothio-indigo.  Specification 414,952 is referred to.