baber/WOPTO huggingface dataset:
Patent GB-666416-A (GB)
Title: Gas turbine power plant for jet propulsion
IPC: F02C3/14
Filed: 1949-02-08
Abstract: 666,416. Gas turbine jet propulsion plant. LYSHOLM, A. Feb. 8, 1949 [Feb. 9, 1948], No. 3456/49. Class 110(iii). In a gas turbine jet propulsion engine comprising an air compressor 2, 3 and an axial flow turbine 17, 18 mounted on a common shaft with a single combustion chamber extending rearwardly of the compressor, the discharge end of the combustion chamber being located between the compressor and the turbine while the main portion thereof lies rearwardly of the turbine, the compressor is of the single-stage, single-entry centrifugal type and the turbine is overhung and is mounted so close to the compressor that the common shaft is mounted in only two bearings 31, 32 which are carried by the compressor housing 1, 36, one in front of the compressor and the other between the compressor and turbine The turbine is preferably of the single-stage type. Air bled off from the air jacket surrounding the flame tube 10 through the deflectors 22 forms a cooling layer against the front wall at the discharge end of the flame tube and also serves to cool the root portions of the turbine blades 18. Air entering as shown by the arrows 24, 26 serves to cool the inner wall of the flame tube. Air is bled off from the diffuser into the space 27 to cool the outer surface of the front wall of the flame tube and is then led into the turbine. Air is also bled from the diffuser through the conduit 28 into the hollow shaft connecting the compressor and turbine and serves to cool and seal the bearings 31, 32 being finally led back to the compressor suction at 34 and to either side of the turbine disc at 40, 41 and also to the space 37 at the rearward side of the compressor rotor where it serves to balance the axial thrust of the gases on the turbine. The guide vanes 8, 9 in the diffuser may be hollow and have openings on their convex surfaces for boundary layer suction. The bearing 31 is a combined radial and thrust bearing. Specification 617,977 is referred to.
Patent GB-1069724-A (GB)
Title: Sealing machine for packages in the form of evacuated or gas-filled bags
Inventor: ROTH WALTER
IPC: B65B31/02
Filed: 1966-01-26
Abstract: 1,069,724. Sealing bags. TRANSVAC MASCHINEN A.G. Jan. 26, 1966, No. 3475/66. Addition to 1,069,723. Heading B8C. In a sealing machine for evacuated or gasfilled bags according to the parent Specification, the unloading station II (Fig. 2) is the station immediately after the loading station I in the direction of rotation of the rotatable carriage 3. The capacity of these two stations is thus doubled relative to the embodiment described in the parent Specification, since in station I a bag 14 is fed into the lower half (9), (Fig. 1, not shown) of the evacuating or gasifying chamber while an already sealed bag is still suspended between sealing jaws in the upper half (8) of the chamber, and in station II the stripper and sliding device (31, 32) removes a sealed bag from the upper half while an unsealed bag is held in the lower half.
Patent GB-895571-A (GB)
Title: Cooking apparatus
IPC: A47J37/12
Filed: 1961-01-30
Abstract: 895,571. Cooking apparatus. HOWES, R. W., and HOWES, A. Jan. 30, 1961, No. 3483/61. Class 28 (1). A rotor 1 fast on a spit 6 has channels 2 passing through oil or water in a basting tray 10, and under a heating element 17, the tray 10 being pivotable about an axis parallel to or, as shown, coincident with that of the rotor so that a lip 12 over which sausages are fed into the channels 2 can take up a position 20 for sausage discharge thereover.
Patent GB-1476881-A (GB)
Title: Process for the production of penicillins
IPC: C07D499/04
Filed: 1975-01-27
Abstract: 1476881 Penicillins BRISTOL MYERS CO 27 Jan 1975 [28 Jan 1974] 3540/75 Heading C2C Synthetic penicillins are prepared from penicillin G or penicillin V by (a) forming solutions of silyl esters of said penicillin G or penicillin V in anhydrous unreactive solvents in the presence of weak tertiary amines, (b) adding halogenating agents at temperatures below 0‹ C. to form solutions of the imino-halides, (c) mixing said solutions with alcohols at below - 20‹ C. to form solutions of the iminoethers, (d) adding to said solutions of the iminoethers at - 50‹ C. volumes of water no greater than 10% by volume of the imino-ether solutions to produce 6-aminopenicillanic acid in a single phase system, and (e) after the addition of weak tertiary amines acylating said 6-aminopenicillanic acid in the same solutions at about - 40‹ C. with carboxylic acid chlorides.
Patent GB-384128-A (GB)
Title: Improvements in electric clocks
IPC: G04B21/14
Filed: 1932-02-06
Abstract: 384,128. Electric clocks. STOCKALL, MARPLES, & CO., Ltd. and STOCKALL, J. J., 6, Clerkenwell Road, London. Feb. 6, 1932, No. 3592. [Class 139.] Overwinding, preventing.-In a synchronousmotor clock, the motor a drives the clock hands directly, and the hands are geared to the winding wheel c of a spring d for striking, chiming, or alarm mechanism ; there being a free-wheel clutch between the hand gearing and the motor. The motor, through gearing b, l, k, i, drives a wheel c one revolution an hour. Wheel c is rigid with a shaft which also has fixed to it one end of the spring d; the latter being in a barrel g rigid with the cam wheel h controlling the striking hammer. Wheel c is also geared to drive the minute arbor e. To enable the hands to be set forward the drive between motor a and wheel c includes a pawl k on wheel l, which engages a ratchet i rigid with wheel c. When the hands are set forward wheel i moves ahead of pawl k and the spring d is wound up : to prevent overwinding, however, the spring is frictionally connected to the barrel g by means of an outer convolution d<1>. To reduce backlash of the minute hand, the shaft e has a ratchet m with fine teeth which coact with a pawl n on the frame. Additional spring drums may be geared to wheel c for operating different striking or chiming movements. Cam wheel h may be replaced by a chiming barrel.
Patent GB-906834-A (GB)
Title: Photoflash lamp
IPC: F21K5/08
Filed: 1960-02-02
Abstract: 906,834. Lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Feb. 2, 1960 [March 30, 1959], No. 3720/60. Class 9 (2). A photoflash lamp comprises a sealed light transmitting envelope 2 containing a combustion - supporting gas, e.g. oxygen, a filling of shredded combustible foil 4, and a pair of lead-in wires 10 with a transverse tungsten filament 8 across them and extended beyond them by an amount on each side equal to at least twice the length of filament between the wires 10 and in frictional engagement with several shreds of the foil 4. The ends of the wires 10 carry ignition paste 14, e.g. zirconium metal powder, and a suitable oxidizing agent such as potassium perchlorate.
Patent GB-722704-A (GB)
Title: Improvements in or relating to the production of meso-substituted aza-acridines
Inventor: GOLDBERG ALAN AUGUST
Filed: 1951-02-15
Abstract: The invention comprises aza-acridines of the general formula <FORM:0722704/IV (b)/1> (wherein R represents an alkoxy or aryloxy group, Y represents chlorine, bromine or iodine, and X represents hydrogen, an aryl or aralkyl hydrocarbon group or a group Z.CnH2n-where n is a positive integer greater than one and Z represents hydrogen, a hydroxy or alkoxy group, or a group having one of the general formul  R1R2N-, R1R2N. CmH2mO- or <FORM:0722704/IV (b)/2 where R1 and R2 are alkyl groups of 1-4 carbon atoms, m is a positive integer greater than one, and A is -CH2 or -O-), and the manufacture thereof by heating the corresponding 9-halogen compounds (in the presence or absence of an inert solvent) or the corresponding 9-phenoxy or alkylphenoxy compounds with an ammonium salt of a weak acid or with a primary aralkyl or aryl amine or an amine Z.CnH2n.NH2. The 9-phenoxy or alkylphenoxy compounds may be prepared by heating the 9-halogen compound with phenol or an alkylated phenol and may be further reacted with or without isolation, or the 9-halogen compound may simply be heated with the ammonium salt or amine in the presence of phenol or an alkylated phenol.  The products are useful pharmaceutically, especially against plasmodia.  In examples, (1) 2-methoxy-6 : 9-dichloro-1-aza-acridine is heated with phenol and the product with 5-diethylamino-2-aminopentane; (2) 2 n - butoxy - 6 : 9 - dichloro - 1 - aza - acridine is heated with phenol and the product with b -diethylaminoethylamine; (3) the amine in (2) is replaced by 5-diethylamino-2-aminopentane, (4) by ammonium carbonate, (6) by ethanolamine, (7) by b -ethoxyethylamine, and (8) by b  - diethylaminoethoxyethylamine; (5) the amine in (1) is replaced by ammonium carbonate, (10) by b -morpholinoethylamine, (11) by b -piperidinoethylamine, (12) by n-dodecylamine, and (13) by p-toluidine; (9) 2-methoxy-6 : 9 - dichloro - 1 - aza - acridine is heated with benzylamine; (14) 2-phenoxy-6 : 9-dichloro-1-aza-acridine is heated with phenol and the product with ammonium carbonate.  A list of additional amines is given. Specification 704,238 is referred to.  In the Provisional Specification, the formula of the products shows the halogen atom Y as occupying any position in the Bz ring, and the substituent in the 9-position is defined as an amino or substituted amino group.
Patent GB-1120119-A (GB)
Title: Vehicle heating system
IPC: B60H1/03
Filed: 1965-08-17
Abstract: 1,120,119. Heating vehicles. STEWARTWARNER CORP. 17 Aug., 1965 [17 Aug., 1964; 9 March, 1965], No. 3760/68. Divided out of 1,120,118. Heading F4V. In a motor vehicle heating system air supplied to the vehicle cab is normally heated by engine exhaust gases but may be heated instead or in addition by a burner. As illustrated, an enginedriven fan 302 passes air to two chambers 308, 310 which are heated by exhaust gases. According to the setting of valves 316, 318 the air is ejected to atmosphere or passed through a chamber 328 heated by a burner 360 to be supplied to the vehicle cab 342. A motor 354, when energized, powers a fuel pump 357 and an air blower 362 to operate the burner 360, and also powers a blower 352 to supply additional air to the chamber 328 via a duct 356. A valve 358 in the duct 356 opens when the pressure at the outlet of chamber 308 falls to a predetermined level. The system is controlled by a thermostat 344 which comprises a bimetallic helix 374 connected between a spindle 368 and a sleeve 371 surrounding the spindle and carrying two cams 376 and 378 for actuating switches 380 and 382. The spindle carries a cam 366 and its position is determined by the setting of a manual control 373. The heating system is rendered operative by turning the spindle 368 so that cam 366 allows switch 370 to close thereby energizing the motor 354 and a thermal time switch 408 which subsequently causes the power supply to the motor 354 to by-pass the switch 370. Closing the switch 370 also operates a relay 413 to close contacts 417 so that a solenoid valve 415 in the fuel line to the burner is ready for operation. A required air temperature is set by appropriately positioning the spindle 368 and, under the control of the bimetal helix 374 increasing temperature demand is met first by the closing of switch 380 by cam 374 and second by closing of switch 382 by cam 378. Closing of switch 380 actuates a valve 350 in a vacuum line to move valves 316 and 318 so that air heated by exhaust gases passes to the vehicle cab. Closing of switch 382 opens the fuel valve 415 and energizes a burner igniter 488 so that additional heat is provided to the chamber 328. When insufficient air is passed by the fan 302 air will be admitted from the blower 352 and if the vehicle engine is not operating the vehicle will be heated solely by air from the blower 352 which has been heated by the burner 360. The heating system may be energized prior to use of the vehicle by means of a time switch 388 which by-passes the vehicle ignition switch 394. In a modified system, Figs. 4 and 5 (not shown), air from the engine-driven blower may by-pass the exhaust gas heating chambers and the auxiliary motor is actuated by the lower temperature cam on the spindle 371.
Patent GB-1224591-A (GB)
Title: Improvements in or relating to phosphonic acid anhydrides
Inventor: RANDALL DAVID IRWIN
IPC: C07F9/40
Filed: 1969-01-23
Abstract: 1,224,591. Plant growth regulants. GAF CORP. 23 Jan., 1969 [26 Jan., 1968], No. 3789/69. Heading C1B. [Also in Division C2] A plant growth regulating composition comprises a mixture of bis-(beta-chloro-ethanephosphonic acid) anhydride of the formula and the corresponding phosphonic acid- ClCH 2 CH 2 P(O)(OH) 2 . The anhydride may also be used above as a plant growth regulator.
Patent GB-810661-A (GB)
Title: Improvements in or relating to vacuum jackets for metal vapour electric discharge lamps
Inventor: WESTON ROBERT FREDERICK
IPC: H01J61/26
Filed: 1956-02-07
Abstract: 810,661. Vacuum-jacketed vessels. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 7. 1957 [Feb. 7, 1956], No. 3818/56. Class 64(2) [Also in Group XL(a)] A vacuum jacket for enclosing a metal vapour discharge lamp has vitreous coaxial inner and outer walls 1, 2 joined together at one end 3 to form a sealed enclosure, the inner wall 1 at its end remote from the joint, being centred with respect to the outer wall 2 by a metal wire frame 4 which engages the opposing walls 1, 2 and to which is secured at least one frame member 9 carrying, or which is in part formed of, getter material and located so as to confine the getter material when vaporized, e.g. by induction, to the end portions of the walls of the jacket remote ' from the joint. A metal cap 11 can be cemented to the end of the jacket to protect the sealedoff exhaust tubulation 10. According to the Provisional Specification the member 9 can be a rectangular frame or plate containing barium and/or aluminium getter material.
Patent GB-1125255-A (GB)
Title: Improvements in or relating to fasteners
IPC: A41F1/00
Filed: 1967-01-26
Abstract: 1,125,255. Hook and eye fastenings. H. KAMPER. 26 Jan., 1967 [2 Feb., 1966], No. 3856/67. Heading A3H. [Also in Division E2] A fastener of resilient material comprises a neck portion 10 having a hammer head shaped member 2 the hammer head engaging by twisting and lateral displacement a complementarily shaped opening 3 in an eyelet member 1. The hammer head has bearing faces 15-18, which engage complementary bearing faces on the eyelet member 1, and three ribs 19 to 21 which enter spaces between the bearing faces. The eyelet member 1 has a reduced thickness bridge piece 6 with a projecting lip 22 which engages a cut out in the hammer head. The eyelet member 1 has four sewing holes 7 and the member 2 has thin sewing zones 9.
Patent GB-686354-A (GB)
Title: Process for fractionating commercial hexachlorocyclohexane especially to obtain the ª†-isomer
IPC: C07C17/38
Filed: 1951-02-16
Abstract: Crude hexachlorocyclohexane is mixed with methanol to form a paste and to dissolve the d - and e -isomers, the liquid extract is expressed from the paste by filtration with pressure, and the solid residue is extracted with methanol to dissolve the g -isomer and leave the a - and b -isomers substantially undissolved, the g -isomer being recovered by crystallization after concentrating the extract. The methanol used in the pasting operation may be at a low temperature, e.g. ice-cold, in order to enhance the difference in solubilities between the d - and e -isomers and the g -isomer.  The pasting operation may also be performed in two or more steps, extract from the preceding stage being reactivated with fresh methanol and used to re-extract the solid residue of that stage.  The mother liquor from the recovery of the g -isomer may be evaporated to dryness to give a residue containing 60 per cent of the g -isomer.  A graph is provided which indicates the points in the process when all the a - and e -isomers have been removed and when only d - and b -isomers remain the portion in between these points representing the extraction of the g -isomer. In an example methanol 150 c.c.s. is mixed at 0 DEG  C. with crude hexachlorocyclohexane (500 gms.), stood for 20 minutes, filtered, methanol 50 c.c.s. added to the extract and the resulting liquid used to re-extract the solid residue, methanol (800 c.c.s.) is added at ordinary temperature to the solid residue from the second extraction, the mixture stirred for 50 minutes, filtered, and the filtrate concentrated by the removal of one quarter of its volume to yield pure g -isomer (35 gms.) on cooling, the mother liquor yielding an isomeric mixture containing 60 per cent of the g -isomer on evaporation to dryness.
Patent GB-197042-A (GB)
Title: Improvements in rope measuring apparatus
IPC: G01B5/04
Filed: 1922-02-09
Abstract: 197,042. Morgan, H. L., and Pearson, F. Feb. 9, 1922. Measuring. - Portable apparatus for measuring the length of wire or other rope, such as that paid off a winding drum in mine-sweeping operations, comprises a frame 2 carrying a serrated wheel 1 which is pressed against the rope by means of a handle 8. The rope passes between deep flanges 3 and the wheel is geared to a pointer 6 which travels over a measuring dial 7.
Patent GB-556280-A (GB)
Title: Method of locating electrodes within an envelope
IPC: H01J19/52
Filed: 1942-03-24
Abstract: 556,280. Discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and DYSON, G. N. March 24, 1942, No. 3918. [Class 39 (i)] In electric discharge devices such as a voltage stabilizer the electrodes are supported by winding round the outer cylindrical electrode E a serrated strip of mica M the teeth T formed by the serrations being flexed when the electrodes are pushed against the domed end of the envelope. The mica strip is long enough to be wound, say, three times round the electrode E and is held thereon by clips C.
Patent GB-1384236-A (GB)
Title: Printing apparatus
IPC: G06M3/06
Filed: 1971-02-04
Abstract: 1384236 Selective printing SMITHS INDUSTRIES Ltd 4 Feb 1972 [4 Feb 1971] 3983/71 Heading B6F Hammer impression.-A plurality of hammers 26 are mounted in a support 27. Each hammer includes a body 28 of steel faced with a strip 29 of hard rubber secured by adhesive in a groove (Fig. 3). A layer 30 of resilient material such as neoprene sponge provides a resilient mounting of the hammers 26, so that when they strike respective type discs (18, Fig. 1) a constant density of print is achieved. The complete hammer assembly is mounted to a pair of pivoted arms (24, Fig. 1), the power for impression being derived from a solenoid (25).
Patent GB-803355-A (GB)
Title: Apparatus for a board game
IPC: A63F3/02
Filed: 1957-02-06
Abstract: 803,355. Board games. BRUNOT, J., and BRUNOT, H., [trading as PRODUCTION & MARKETING CO.]. Feb. 6, 1957 [Aug. 24, 1956], No. 4167/57. Class 132(2) In a board game of the kind in which a player moves his pieces over a board 15 marked with a network of playing positions and lines preferably in the form of a cross from his base 25 in order to occupy the base of his opposite opponent, each piece consists of three nesting parts 20, 21, 22 which can be moved together or separately. The pieces may be round, triangular or square in cross-section.
Patent GB-363216-A (GB)
Title: Improvements in or relating to screw-stocks
IPC: B23G5/08
Filed: 1931-02-10
Abstract: 363,216. Screwing. DEUTSCHE WERKZEUG-UND MASCHINENFABRIK KIRCHHOFF & CO., 6, Hainstrasse, Bliedinghausen, Remscheid, Germany. Feb. 10, 1931, No. 4182. Convention date, Feb. 10, 1930. [Class 83 (iii).] Screwing-dies and die-heads ; stocks and dies.- In a taper-threading screwing die-head the chasers b are radially adjustable in the body a by means of a rotary cam-plate d. An extension e of the body is screwed at f with the same pitch as that to be produced on the work, to engage a work-support h. An exchangeable bush g serves as a work guide and is secured to the support h by screws k which also secure the work. A ring l is rotatable on the support but is slidably keyed at l<1>, Fig. 4, to the extension e and carries a lug m in which a block n is adjustably secured by a screw n<1>. An inclined cam-bar d<1> formed integral with the cam-plate d slides through the block n and thereby causes the cam-plate to be rotated during screwing for producing a taper thread. Adjustment of the block n in the lug m varies the diameter of the thread produced, a scale m<1> being provided for facilitating the adjustment. Parallel threads may be cut by leaving the block n loose on the lug m or the screws k loose on the work. The ring l is attached to the support h by means of a semicircular dove-tailed portion thereon engaging an annular recess h<1> in the support, and the body a may be rotated by a ratchet or by the usual handles.
Patent GB-470343-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B33/18
Filed: 1936-02-12
Abstract: The manufacture of azo-dyestuffs by the processes described in the parent Specifications is modified by the use of 1 : 2-dioxybenzene instead of 1 : 2 : 3-trioxybenzene.  In examples: (1) the dyestuff 4-nitro-1-aminobenzene --> 1 : 2 - dioxybenzene \sM 4<1>-nitro - 4 - aminodiphenylamine-2<1>-sulphonic acid is prepared, with or without blowing with air before isolation, and is treated in alkaline solution with a cupric salt; the product dyes chrome or vegetable-tanned leather Havana tints with a greenish olive shade; the chromium compound may be similarly prepared; (2) the order of coupling in (1) is reversed, the product yielding somewhat more covered and browner shades; the 4-nitro-1-aminobenzene may be replaced by aniline, 1-aminobenzene-2-sulphonic acid, a 1-naphthylaminesulphonic acid or 4-aminoazobenzene-4<1>-sulphonic acid; (3) the dyestuff 4<1>-nitro-4-aminodiphenylamine-2<1>-sulphonic acid --> 1 : 2-dioxybenzene is prepared, treated with air and then coupled with diazotized 1-oxy-2-amino-4 : 6-dinitrobenzene and the product is treated with a copper or chromium salt; the product dyes leather greenish - yellow Havana tints; the second diazo component may be replaced by aniline, 4-nitro-1-aminobenzene, 4-nitro-1-aminobenzene-2-sulphonic acid or 4<1>-nitro-4-aminodiphenylamine-2<1>-sulphonic acid. Specifications 297,003, [Class 2 (iii)], 415,924, 445,378, and 468,840 are referred to.
Patent GB-1215842-A (GB)
Title: Reproduction objective
IPC: G02B13/24
Filed: 1968-01-26
Abstract: 1,215,842. 842. Optical objectives. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan.26, 1968 [Jan.30, 1967], No.4267/68. Heading G2J. A reproduction objective, e.g. for use in making printed circuits, consists of four groups I-IV wherein group I is a ringlet A of high refractive index whose focal length is of the order of ten times that of the complete objective; group II has a focal length at least five times that of lens A and corrects aberrations introduced by group III which has a focal length of the same order as that of the complete objective and is formed by a ringlet J or by two lenses having a refractive index greater than 1À75; and group IV which is formed by a negative ringlet K whose refractive index is less than 1À55 for correcting curvature of field and Petzural curvature. Since the focal length of lens A determines the magnification of the reproduction, which is always less than unity and may be 0À1 for instance, it may be replaceable by different lenses for different magnification. Optical data are given for the example shown.  (For Figure see next page)