baber/WOPTO huggingface dataset:
Patent GB-222656-A (GB)
Title: Improvements in baffles for the internal flues of steam boilers and the like
IPC: F23M9/00
Filed: 1923-09-19
Abstract: 222,656. Lilge, F. Sept. 19, 1923. Baffles. - The flues of steam boilers and the like are provided with baffles consisting, as shown in Figs. 1 and 2, of an imperforate core or body 1 of tapering form with helical ribs 3 the pitch of which decreases towards the rear of the flue. A conical baffle 5 may be suspended in the flue at a suitable distance beyond the baffle 1. When applied to boilers having left-and-right hand furnace flues, the helical ribs on the two baffles may be right and left handed respectively. The core 1 of the baffle may be eccentric or concentric and when arranged concentrically the baffle may be arranged eccentrically in the flue. The baffles may be formed in sections each section being provided with a helical rib.
Patent GB-886220-A (GB)
Title: Photographic image transfer process and materials
Inventor: LEVINOS STEVEN
IPC: G03C8/28
Filed: 1960-07-05
Abstract: 886,220. Silver halide diffusion transfer processes and materials. GENERAL ANILINE & FILM CORPORATION. July 5, 1960 [July 13, 1959], No. 23522/60. Class 98(2). An exposed emulsion layer is developed with simultaneous or subsequent treatment with a silver halide solvent, and then contacted with a receiving material having a coating of zinc oxide, titanium dioxide, zirconium dioxide or silicon dioxide, after which the receiving material is separated and exposed to light to cause the oxide to decompose the transferred silver salt complex and produce a visible image. Three examples describe the process using gelatine coated paper containing the first two of these oxides as receiving materials and hypo as silver salt solvent: the fourth and last example is concerned with a complete material, this being a paper sheet coated with hardened gelatine containing zinc oxide and overcoated with a soft gelatinosilver chloride emulsion, and such is exposed to a document, treated in a metal-hydroquinone developer and then in a bath comprising the sodium salt of naphthalene-1- sulphonic acid with hypo, after which the soft emulsion layer is washed off and the zinc oxide coated layer is exposed to light to produce the image.
Patent GB-235764-A (GB)
Title: Improvements in and relating to display device
IPC: A47F3/022
Filed: 1924-10-06
Abstract: 235,764. Alexander, A. E., (Panay Horizontal Show Jar Co.). Oct. 6, 1924. Stopper hinged' at one side.-A transparent show jar is fitted with a hinged lid 22, the hinge pintle 35 connecting lugs 33, 37 on bands 26, 28 passing respectively round a gasket 27 on the beaded rim of the jar and round a channel in the lid 22. A spring 39 presses the closed lid against the gasket 27, but supports the lid in open position as shown,
Patent GB-1110230-A (GB)
Title: Track switching device for tracked ground effect machines
Inventor: DELASALLE LOUIS MARIE FRANCIS
IPC: E01B25/28
Filed: 1965-06-02
Abstract: 1,110,230. Air-cushion vehicles; switches. SOCIETE D'ETUDES DE L'AEROTRAIN. 2 June, 1965 [4 June, 1964], No. 23579/65. Headings B7K and B7L. In a tracked air-cushion vehicle system, wherein the vehicles are normally guided on the track by means on the vehicle which engage with an upwardly projecting rail on the track, means for switching from one track to another comprises an interconnecting track section formed with a groove which is engaged by a normally retracted guide member extended from the base of the vehicle, the upwardlyprojecting rail being retractable at the point of switch-over. In Fig. 1, a pair of tracks 2a, 2b each carry an upwardly extending guide rail 3a and are connected by a diagonal switchover track 2c, the portions 3d of the rails 3a in this area being retractable by screw or other jacks. The track portion 2c carries a recess 6 which extends on to opposite portions of tracks 2a, 2b to overlap the fixed rails 3a, the extremities of the recess being formed with fixed or retractable ramps 6c, Fig. 6, whereby wheels 8 carried on the vehicle 1 by pivoted levers 9 may be lowered into the groove. The lever 9 also carries smaller wheels 12 which bear on the lateral faces of the groove. Retracting and up-lock means for lever 9 are described.
Patent GB-386275-A (GB)
Title: Improvements relating to the side sheeting and, or, roofing plates of gasholders
IPC: F17B1/00
Filed: 1932-08-24
Abstract: 386,275. Riveted joints. DEMPSTER, Ltd., R. & J. and SCOTT, J. W., Gas Plant Works, Oldham Road, Manchester. Aug. 24, 1932, No. 23664. [Class 83 (iv).] In order to prevent leakage through the lap joints of the side sheeting or roofing plates of gasholders the inner plates are arranged to project downwardly over the outer plates and are provided with undercut lower edges 9, 12 so as to form cavities between the plates.
Patent GB-1146664-A (GB)
Title: Process for the manufacture of organic isocyanates
Inventor: HINCKLIEFF HENRY RUSSELL
IPC: C07C265/12
Filed: 1965-06-03
Abstract: 1,146,664. Preparation of organic isocyanates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 May, 1966 [3 June, 1965; 18 Feb., 1966], Nos. 23741/65 and 7276/66. Heading C2C. A process for the manufacture of organic isocyanates by the phosgenation of an amine hydrochloride comprises forming the amine hydrochloride by treating a solution of said amine in an inert solvent, said solution being in the form of a thin film having a constantly changing surface, with hydrogen chloride and reacting the amine hydrochloride so produced with phosgene. The phosgenation may be effected batchwise or continuously, suitably at a temperature of 75-200‹ C. and the phosgene may also be introduced with the hydrogen chloride during the formation of the amine hydrochloride. In the examples, the following isocyanates are prepared: tolylene diisocyanate, a mixture of 2,4- and 2,6-tolylene diisocyanates, diphenylmethane diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, and m- and p-xylylene diisocyanates. The amine hydrochloride may be prepared as a slurry or suspension in an inert solvent, e.g. an ester, hydrocarbon or halohydrocarbon, by employing a thin film evaporator or processor: the reaction may be effected at 0-100‹ C., optionally at elevated pressure, and the solvent may contain 4 to 16% by weight of the amine starting material.
Patent GB-901204-A (GB)
Title: Improvements in or relating to the treatment of waste liquor or effluent
Inventor: COLES GEORGE
IPC: C02F9/00
Filed: 1957-07-26
Abstract: 901,204. Electrolytic purification of liquids. COAL INDUSTRY (PATENTS) Ltd. Oct. 24, 1958 [July 26, 1957], No. 23769/57. Drawings to Specification. Class 41. Waste liquor is first treated by a biological oxidation process and then subjected to electrolytic treatment. The process is applicable to wastes having a high oxygen demand, e.g. ammoniacal waste from coal carbonization, containing phenols, thiocyanates and thiosulphates. The electrodes for the electrolytic process may be tubes or plates of solid or perforated sheet, e.g. expanded metal or woven wire mesh, of platinum, iron, carbon, or a base metal such as iron or titanium coated with platinum. The voltage may be 3 to 10 volts and the anode current density 10 to 40 mA/sq. cm. Specification 811,162 is referred to.
Patent GB-423716-A (GB)
Title: Improvements in or relating to tie rods and tie rod ends
IPC: F16C11/06
Filed: 1934-08-18
Abstract: 423,716. Ball joints. ALFORD & ALDER (ENGINEERS), Ltd., Winch Place, Deacon Street, Walworth, London, and GLOVER, V. A., Standish, Grange Road, Sutton, Surrey. Aug. 18, 1934, No. 23857. [Class 65 (ii)] In a ball joint of the kind in which the ball is mounted between a pair of bearing members in a housing with an integral spigot or other means for attachment to a rod, one of the bearing members being adjustable and spring- pressed towards the other in a direction transverse to the spigot or rod, the adjustable bearing member has an internal recess to house and locate the spring or other resilient member. In the form shown, a ball stud 12, fixed to a member 25, passes through one end of a cylindrical housing 1 having an integral spigot 29 screwed and clamped into the end of a hollow rod 30, and the head 11 of the stud is supported between two bearing cups 8, 14 fitting in the housing 1. The lower cup 8 rests on a flange at the end of the housing and has an aperture through which the ball stud 12 passes. The upper bearing member 14 is slidable in the housing, and is pressed towards the ball by a spring 19 contained in a recess in the member 14 and bearing at the other end against a plate 20 which closes the end of the housing ; the provision of the recess for the spring allows the member 14 to have a larger external surface for sliding in the housing without a correspondingly longer housing. The recess may be in the form of an annular groove. The spring may be replaced or supplemented by a tubular rubber member. Dirt and wet are excluded from the joint by a moulded rubber washer 22, with dust plate 26, fitting between the member 25 and a partspherical portion of the housing 1. The closure plate 20, which rests on a shoulder in the housing 1 and is fixed by spinning over the edge of the latter, has a central aperture for the introduction of lubricant, which passes to the space between the bearing members 8, 14 by a passage 36 in the ball 11 ; in a modification, the passage 36 is replaced by a groove cut in the surface of the ball 11.
Patent GB-1320290-A (GB)
Title: Protective circuit for an insulated gate field effect transistor
IPC: H01L27/02
Filed: 1972-05-22
Abstract: 1320290 Semi-conductor devices NATIONAL CASH REGISTER CO 22 May 1972 [8 June 1971] 23873/72 Heading H1K The gate insulation of an IGFET 24 is protected by the provision of a further IGFET 16 having an elongate drain region 18 connected at one end 22 to the gate electrode 30 of the protected IGFET 24 and at the other end 19 to an input terminal 21 and to the gate electrode 10 of the protective IGFET 16, which gate electrode 10 overlies a thicker gate insulating layer than that of the protected device. The source region 14 of the protective IGFET is grounded. In the presence of a potentially damaging voltage overload the IGFET 16 switches on, and the gate of the device 24 is protected by the combination of the draining of current to ground through the device 16 and the distributed resistance of the elongate drain region 18. In the event of a higher voltage overload the input end 19 of the drain region 18 can be arranged to operate as an avalanche breakdown diode, shorting the overload directly to the grounded substrate 17. Drain-to-source punch-through of the protective IGFET 16 may also be arranged to occur at a certain voltage level less than that which would damage the IGFET 24.
Patent GB-664504-A (GB)
Title: Improvements in or relating to work supporting devices
IPC: B23Q1/54
Filed: 1948-09-10
Abstract: 664,504. Work-holders. ABBEY, A. (Vogl, H., Vogl, C., Stanley, M., and Vogl, O., (trading as Wilton Tool Manufacturing Co.)). Sept. 10, 1948, No. 23892/48. Class 83 (iii). A work-support comprises a ball 35 carrying a pin 41 on which is mounted a work-holding element 42, a socket for the ball, means for contracting the socket to grip the ball inadjusted position, and a standard 26 to support the socket in axial alignment therewith. Workpieces can be secured in holes in the element 42 or clamped thereto and adjusted universally about the standard 26, which may be bolted to a bench. The ball 35 is supported on a loose bearing 32, Fig. 4, which is prevented from rotating by engagement with a pin 37 secured to a sleeve 28, that is attached by pins 29 to the standard. A rotatable bearing 38, against which the ball 35 is locked in adjusted position by means of a plunger 44 actuating the loose bearing 32, is positioned over the ball and secured by its flange 30 beneath the sleeve 28, a slot 40 being formed in the bearing 38 to permit vertical adjustment of the pin 41. The plunger 44 has a lock-nut 46 and adjusting- screw 45 at the top end thereof and a ball 47 in a seating at the bottom end, the ball engaging a groove in an eccentric spindle 49 formed on the end of a hand-operated shaft 48 so that by operating the shaft the throw of the eccentric spindle actuates the plunger. In a modification, Fig. 11, a piston 65 is actuated hydraulically to bear on the ball 35, the piston being prevented from rotating by co-operation between a slot 71 therein and a pin 72 passing through the standard and sleeve 28. Hydraulic pressure is created behind the piston 65 by turning a screw 61 which advances a plunger 63 in a passage 59 adjoining a main passage 56 provided with a filler-plug 57. The piston 65 is returned by a spring 68 acting between the pin 72 and head 67 of the piston. Cups 64, 73 of resilient material such as rubber or leather, are provided at the head of the plunger 63 and piston 65, respectively. In a further modification, Fig. 19, the loose bearing 32 is prevented from rotating by a pin 37 which also secures the sleeve 28 to the standard 26. An elongated slot 90 receives the pin 72 for securing the piston 38 in its bore, and a hand-lever 37 having an eccentric cam-surface 85 is adapted to actuate the plunger 82 in the passage 59a. A further passage 76 is formed in the standard 26 to receive a screw 79 which bears on a plunger 80 used to adjust the pressure behind the piston 88. Reference has been directed by the Comptroller to Specification 631,690.
Patent GB-151474-A (GB)
Title: An improved automatic fire extinguisher and stop motion for kinematographs
IPC: G03B21/18
Filed: 1919-10-02
Abstract: 151,474. Taylor, W., and Pickard, H. Oct. 2, 1919. Kinematograph apparatus - Relates to fire - extinguishers for kinematographs, of the type in which a valve controlling the discharge of a fire-extinguishing fluid is automatically opened on the burning of an inflammable retaining- thread or connexion; the operation of the releasing-device is also adapted to break the circuit of the electric driving-motor to stop the machine, and to break the circuit of the arc or other lamp. A tank a containing a fire-extinguishing gas or liquid under pressure, or compressed air, is connected by a pipe f to a discharge nozzle g arranged above the film gate and normally closed by a valve disk k carried by a lever m pivoted at n. When a loop or connexion p of cotton strands &c. is burnt, a spring o rotates the lever m to free the valve k from the nozzle g. At the same time, a contact block v is withdrawn from between spring contacts w to break the circuit of the driving-motor. The lever m may also carry a contact pin adapted, when the lever is operated, to make contact with one of the spring contacts w, which is connected to one terminal of an electro-magnet, the other terminal being earthed; when this electro-magnet is energised, its armature releases a switch lever,. which is then operated by a spring to break the lamp circuit.
Patent GB-376994-A (GB)
Title: Improvements relating to taps or cocks
IPC: F16K11/083
Filed: 1931-08-27
Abstract: 376,994. Anµsthetic apparatus. BENTON& STONE, Ltd. and MILNER, C. E., Bracebridge Street, Birmingham. Aug. 27, 1931, No. 24096. [Class 81 (ii).] A plug cock for controlling the supply of air to an ether bottle has a body part provided with an air inlet, an air outlet which leads to a chloroform bottle, and an outlet for ether vapour mixed with air, and a plug in which passages are arranged so that when the air outlet is fully open the passages to and from the ether bottle are completely closed. Air enters by the inlet e, as shown in the Figure, and passes via the passages q, p in the plug h to a tube m which projects downwardly into the ether bottle d. A mixture of ether and air passes up the sleeve b and to the outlet g by a passage r. By turning the plug so that the inlet e and an outlet connection f leading to a chloroform bottle are placed in full communication by the passage n, the passages p, r to and from the bottle d are completely cut off. In an intermediate position of the plug, air passes through both passages n, q.
Patent GB-1399469-A (GB)
Title: Amino derivatives of pyrazolopyridine ketones
IPC: C07D471/04
Filed: 1972-05-23
Abstract: 1399469 Amino derivatives of pyrazolopyridine ketones E R SQUIBB & SONS Inc 23 May 1972 [25 May 1971] 24223/72 Heading C2C Novel compounds of the Formula I wherein R 1  is hydrogen, alkyl, phenyl or phenyl alkylene, R 2  is hydrogen or alkyl, R 3  and R 4  each is hydrogen, alkyl, alkanoyl, haloalkanoyl, R 7 ,R 8 -phenyl, phenylalkylene, dialkylaminoalkylene or R 3  and R 4  together with the nitrogen to which they are attached form R 9 ,R 10 - aziridinyl, -pyrrolidino, -piperidino, -pyrazolyl, -hexahydropyrimidinyl, -hexahydropyridazinyl or -piperazinyl, R 5  is alkyl, C 3-7 -cycloalkyl, phenyl, R 7 ,R 8 -phenyl, R6 is hydrogen, alkyl or phenyl, R 7  and R 8  each is hydrogen, halogen or trifluoromethyl and R 9  and R 10  each is hydrogen, alkyl or hydroxyalkyl where all alkyl, alkylene and alkanoyl radicals have up to 8 carbon atoms and acid addition salts thereof may be prepared by reacting either of the compounds VI or VIII with an amine R 3 R 4 NH, optionally followed where R 3  and/or R 4  is alkanoyl or haloalkanoyl by acylating the product I in which at least one of R 3  and R 4  is hydrogen. Compounds of the Formula VIII are the subject of the divided Specification 1,399,470. 5 - Acetyl - 4 - ethoxy - 1 - ethylpyrazolo[3,4- b]pyridine may be prepared by condensing 1- ethyl-5-aminopyrazole with ethoxymethylene acetoacetic acid ethyl ester to form (1-ethyl-5- pyrazolyl)aminomethylene - acetoacetic acid ethyl ester followed by pyrolysis to 5-acetyl-1-ethyl-4- hydroxypyrazolo[3,4-b]pyridine followed by alkylation of the hydroxy group. 5 - Acetyl - 4 - chloro - 1 - ethylpyrazolo[3,4 - b]- pyridine may be prepared by chlorinating the 4-hydroxy compound above. 5 - Benzoyl - 4 - chloro - 1 - ethylpyrazolo[3,4- b]pyridine may be prepared by reacting 5- amino-1-ethyl pyrazole with ethoxymethylene benzoylacetic acid ethyl ester, and pyrolysing the reaction mixture to form 5-benzoyl-1-ethyl- 4-hydroxpyrazolo[3,4-b]pyridine which gives the required intermediate on treatment with phosphorus oxychloride. Pharmaceutical compositions of the compounds I with the usual excipients show antiinflammatory, and CNS depressant activity and may be used to treat asthma when administered orally or parenterally (and topically for anti-inflammatory activity).
Patent GB-1452941-A (GB)
Title: Thyristor scanning tv circuits
IPC: H04N3/185
Filed: 1973-05-22
Abstract: 1452941 Converting STANDARD TELEPHONES & CABLES Ltd 16 May 1974 [22 May 1973] 24233/73 Heading H2F [Also in Division H3] In a television deflection circuit of the type comprising a trace thyristor TH3, a commutating thyristor TH2, a third thyristor TH1 in series with the supply to provide automatic picture width and EHT regulation and a rectified A.C. supply and smoothing circuit 4, the time constant of discharge of the smoothing circuit is so chosen that if the regulating and commutating thyristors are on together the circuit discharges below the holding current of the third thyristor between two positive half cycles of the supply. As described, if commutation continues to malfunction in this way over a number of cycles, the fuse will blow. The automatic width control voltage is derived from the negative peak of the wave at the line output transformer and is supplemented by EHT current feedback from a capacitor of the focusing voltage multiplier circuit to improve EHT stability. The control may have a time constant small enough to correct for mains ripple. The control signals for the thyristors are derived from two integrated circuits (Fig. 5). The righthand one, MIC, comprises two monostable circuits in cascade the first being driven from the output of circuit TBA fed with the video signal. The trace thyristor triggering pulse is derived by combining in diodes D2, D3 the outputs Q1 and Q2 of the two monostable circuits. The commutating thyristor is triggered from the first monostable circuit and the regulating thyristor is triggered by the second monostable circuit. The regulating signals from the line output circuit are compared with a reference provided by a Zener diode D1, the current through which controls the monostable circuit timing and thus its output pulse delay. Excessive delay is prevented by limiting the diodes D4, D5. A small mains transformer HT (Fig. 3) provides starting current for the drive and CR tube circuits and a diode circuit D2, D3 transfers the circuit to a supply derived from the line output circuit when it comes into operation. Fig. 8 (not shown) includes an arrangement avoiding the use of a mains transformer and including a Zener diode to stabilize the supply to the CRT heater circuit.
Patent GB-518187-A (GB)
Title: Automatic control systems for arc lamps
IPC: H05B31/00
Filed: 1938-08-17
Abstract: 518,187. Automatic control systems. COATES, F. C. Aug. 17, 1938, No. 24265. [Class 38 (iv] Arcs.-In a control arrangement for multi-arc lamps two arcs, A, B, are arranged in series with and separated by a ballast resistance R across mains L1, L2, resistances AR and BR being connected respectively in parallel with arc A and resistance R and with resistance R and arc B and electrode feeding motors A8, B9 being connected by contacts 24, 31 between predetermined, points on the resistances AR, BR and the end of resistance R connected to the associated arc. The motors A8 B, are then energised on variation of the voltage across arc A or B and operate to move the electrodes together or apart until the arc voltage is restored to the value set by the associated contact 24 or 31. Resistances AR, BR are arranged to pass a current which is high compared to the current required to operate the motors. The motor fields A9, B, are energised in series from the mains L1, L2, If the electrodes A1, A. or B1, B. become too short further movement of the electrode carrier A5 or B, is arranged to push bar 41 downwards to open the circuits of the feeding motors A8, B,. These circuits may also be broken by the polarised relay 43 if the apparatus is connected through the plug 49 with incorrect polarity. If more than two arcs are to be controlled the arcs A, B, C, Fig. 3, are' connected across the mains L1, L2 in series with ballast resistance R and a long resistance AR, BR, CR or several equivalent short resistances are arranged in parallel., The feed. motors A8, B8, C, are connected between the arcs and points on the resistance at suitable potentials as shown. The motor fields A9, B9, C9 are supplied in series.
Patent GB-481029-A (GB)
Title: Improvements in ploughshares and shares for root crop raising machines
IPC: A01B15/04
Filed: 1936-09-05
Abstract: 481,029. Implements for working land; digging root crops. LEA, F. J. Sept. 5, 1936, No. 24308. [Classes 6 (i) and 6 (iii)] A share for a plough or for a root-crop raising-machine is provided with separately formed tines extending obliquely of, and downwardly from, its leading edge. Fig. 1 shows a ploughshare provided with an angle-section tine 2 at its leading corner having one flange vertical, and with two other spaced tines 3, 4 extending substantially in the plane of the share plate 1 and in the direction of motion. The share is cast or forged with recesses to receive the tines 2, 3, 4, which may be removably secured by rivets 7 &c. The share plate may be formed with a tapering strengthening rib at the back and with a shoulder to fit against the member carrying it. Fig. 5 shows a share for a potato-digger or a root-crop raising-machine provided with downwardly and forwardly projecting tines 11 secured in recesses by rivets 7.
Patent GB-631054-A (GB)
Title: Improvements relating to electric hand irons
IPC: D06F75/26
Filed: 1947-09-03
Abstract: 631,054. Electric hand-irons. HOOVER, Ltd. Sept. 3, 1947, No. 24321. Convention date, Sept. 7, 1946. [Class 39(iii)] [Also in Group XXXVII] A control dial 35 of a thermostat for an electric hand iron has a diameter which is substantially equal to the width of the upper part of the iron body. A, shallow flange 37 and cooling ribs 45 are moulded round the periphery of the dial which together with enlarged feet 30, 31 of legs 22, 23, protect the user's hand against burning,