baber/WOPTO huggingface dataset:
Patent GB-332710-A (GB)
Title: Improvements in or relating to incubators and foster mothers
IPC: A01K41/00
Filed: 1929-06-24
Abstract: 332,710. Drake, S. T., Drake, F. J., and Shotter, G. F. June 24, 1929. Hatching and rearing appliances.-An incubator or brooder is provided with electrical heating means with a separate thermal storage device arranged above the heating means. The incubator has double walls 1 packed with heat insulating material 3 and is provided in the front with a double glass door 4 hinged in the usual way. A shallow tray 5 containing water is placed in the bottom and air entering through inlets 7 escapes through coils 8 under a blanket 6 that extends over and dips into the water in the trav. A slide 9 controls the admission of air. A perforated shield 11, preferably of expanded metal, is arranged over the egg tray 10 and above this is fitted a woven electric resistance mat 12 controlled by a thermostat 18 and relay 19. Above the heating means is mounted a flat tank 13 containing oil of high flash point and having several tubes 14 passing through it from top to bottom. An insulating asbestos sheet 15 is arranged a short distance above the tank. Air inlet holes 17 are formed in the sides of the incubator above the tank. A brooder has the heating resistance at the bottom, the thermal storage tank being directly above it and two floors being arranged between the top of the tank and the brooder chamber.
Patent GB-1087013-A (GB)
Title: Vacuum furnace
IPC: F27D99/00
Filed: 1965-05-07
Abstract: 1,087,013. Electric resistance furnaces. McGRAW-EDISON CO. May 7, 1965 [Sept. 25, 1964], No. 19352/65. Heading H5H. A furnace comprises a vacuum chamber 12 containing an electrically energized source of infra-red radiation 32, means for evacuating the chamber and means for conducting metal 17 to be treated into and out of the chamber. In a vacuum furnace for continuously annealing strip titanium 17, the strip enters and leaves through a cylindrical roll housing 10 containing sets of rolls 15 between evacuated ducts 18, passes into a chamber 11 and then up and down a vertical cylindrical metal furnace chamber 12 divided into zones. In the first zone the strip is raised to or near to annealing temperature, in the second the temperature is maintained or varied slightly and lastly it is cooled by passing between water-cooled plates (84), Fig. 3 (not shown) protected from the heaters 32 by a reflector plate (87). Water-cooled reflector plates 36, 37 between the heaters 32 and chamber 12 and side reflective plates (39) extend over both heating zones. Each heater comprises a coiled tungsten filament in a quartz tube and an aluminium parabolic reflector (34). The ends of the heaters are slidably supported within tubes (60), Fig. 5 (not shown), which are mounted in cylindrical sections (45) in apertures (43) in the chamber 12. In another embodiment, Fig. 7 (not shown), each heater is enclosed and supported within a quartz tube (80) through which cooling gas is passed.
Patent GB-1151336-A (GB)
Title: Improvements in or relating to Electric Circuits
Inventor: BROWN MICHAEL
IPC: H02H3/12
Filed: 1966-05-03
Abstract: 1,151,336. Control of motors. ENGLISH ELECTRIC CO. Ltd. 7 March, 1967 [3 May, 1966], No. 19407/66. Heading H2J. In a system in which current is collected by a sliding contact 14 from an A.C. line 13 and supplied to at least one D.C. or A.C. motor 15 via an automatic voltage regulator 16, a switching circuit is provided responsive to loss of contact of the collector. The voltage control comprises unspecified thyristor circuits 16 and the switching circuit has transistors 24 28 and Zener diode 26 arranged so that a voltage on line 32 disappears when the output of a transformer 17 is zero, and this suppresses the thyrister triggering pulses. A delay 31 prevents suppresion at zero points in the A.C. waveform. When contact is restored the triggering pulses are released and advanced to restore normal operation. A tap-changing transformer 10 provides coarse control and the system is normally operated to maintain constant tractive effort. The switching circuit may also operate an indicator.
Patent GB-1325231-A (GB)
Title: Basic substituted alkylidenamino-oxyalkyl-carboxylic-acid esters
IPC: C07D333/28
Filed: 1971-06-08
Abstract: 1325231 Basic substituted alkylideneaminooxyalkyl carboxylates PHILIPS GLOEILAMPENFABRIEKEN NV 8 June 1971 [11 June 1970 2 March 1971] 19416/71 Heading C2C Compounds of Formula (I) and their acid addition salts (wherein A is S or -CH = CH-; R 1  is halogen, CF 3  or CH 3  and R 2  is halogen, whilst R 1  and R 2  may be H; R 3  is H or CH 3 ; R 4  is a straight or branched alkylene of up to 6C optionally substituted by phenyl; Y is a cyclic hydrocarbon radical of 5 or 6C or together with the N atom of the amino group and R 6  and/or R 7  is a monooyclic or bicyclic heterocyclic group containing at most 10 ring atoms and optionally containing an S atom and optionally substituted by CH 3 ; R 6  and R 7  are each H or alkyl of up to 8C which groups do not contain more than 10C and may be substituted by OH 1-4C alkoxy or an acyloxy group of Formula (II) (E=O); R 6  may also be 3-8C cycloalkyl, phenyl, halophenyl, tolyl, phenylalkyl of up to 9C, pyridyl or acyl up to 10C or NR 6 R 7  may be a mono or bicyclic hetsrocyclic group of up to 10 ring atoms and optionally containing additional O and N atoms are prepared by reacting a compound (II) where E is Cl, MeO or OH with a compound (III) where B is OH or halogen (E=OH only) or a compound (IV) with a compound (V) where D is tosyloxy or halogen or a compound (VII) with a compound (VIII) or a compound (IX) with a compound (X) where M is metal or H or a compound (IX) with a compound (XI) where R 4  is 2-5C alkylene, R 4 <SP>1</SP> is 2-5C alkenyl and M is H. Pharmaceutical compositions contain compounds (I) together with a diluent in forms suitable for oral, parenteral and rectal administration.
Patent GB-275220-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/00
Filed: 1927-07-22
Abstract: 275,220. Geigy Akt.-Ges., J. R. July 29, 1926, [Convention date]. Monoazo dyes; lakes. - Monoazo dyes are obtained by diazotizing an aminosulphobenzoic acid having the sulpho group in the o-position to the amino group and coupling with a usual coupling component. The use as components of 1 : 8- naphthylenediamine-3 : 6-disulphonic acid or of compounds containing a cyanuric nucleus is excepted. In examples, (1) 2-chlor-5-amino-4- sulphobenzoic acid is diazotized and coupled with #-naphthol; the product is a fiery red powder giving a calcium or barium lake of more fiery tint and faster to light than Lake red C, and (2) diazotized 2-chlor-5-amino-4-sulphobenzoic acid is coupled in acid solution with 2 : 8 : 6-aminonaphthol sulphonic acid; the product dyes wool in a sulphuric acid bath vivid bluish-red tints fast to light, the fastness can be increased by after-chroming. By using pyrazolones as coupling components, dyestuffs giving greenish or yellow tints, very fast to light, are obtained. 2-Chlor-4-amino-5-sulphobenzoic acid is also specified as a diazo component. 2-Chlor-5-amino-4-sulphobenzoic acid is made by oxidizing o-chlor-p-toluenesulphonic acid, nitrating the carboxylic acid thus produced, and reducing the product. 2-Chlor-4-amino-5-sulphobenzoic acid is made by sulphonating o-chlor-p-nitrotoluene, oxidizing to produce the carboxylic acid, and then reducing the nitro group.
Patent GB-1488776-A (GB)
Title: Sheathed staple fibres
IPC: D01F8/14
Filed: 1976-05-12
Abstract: 1488776 Composite polyester fibres HOECHST AG 12 May 1976 [14 May 1975] 19546/76 Heading B5B The fibres comprise an inner core of a hydrophilic linear polyester and the outer core of a non-hydrophilic linear polyester. Preferably the hydrophilic linear polyester is a block copolymer of from 90-20% by wt. relative to the polyester of polyethylene terephthalate and from 10 to 80% of a polyalkylene glycol. The hydrophilic linear polyester may also contain by incorporation or co-condensation 5-20% by wt. relative to the salt free ester of an alkali metal salt or an alkaline earth metal salt of a sulphonic acid or an acidic phosphoric or phosphonic acid ester.
Patent GB-1084545-A (GB)
Title: Improvements in missile control systems
Inventor: SWIFT NORMAN
IPC: F41G7/00
Filed: 1963-05-16
Abstract: 1, 084, 545. Automatic steering control. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. May 6, 1964 [May 16, 1963], No. 19597/63. Heading G3R. [Also in Division F3] A missile control system has means for measuring dynamic head pressures from static and Pitot pressure instruments and further means responsive to the difference between the dynamic head and a particularly chosen value of dynamic head for controlling the flight path of the missile during gliding so as to tend to eliminate the difference. An air to ground guided missile glides after launching from a carrier aircraft to a specified altitude whereupon a sustainer motor and end-guidance system direct the missile to its target. On launching, a computer 1 on the carrier supplies a store 6 on the missile with the chosen value of dynamic head for comparison with readings of target range, altitude and speed while connections 5, 5', 5" are broken and relay 7 operated to unlock actuators 9 via a time delay 8. Pitot and static pressure readings from an instrument 10 on the missile are fed through a differencing amplifier 13 and the evaluated reading of dynamic head is fed through a filter 15 to another differencing amplifier 16 which receives the chosen dynamic head signal from the store 6 and applies the difference in value between these two dynamic heads to an amplifier 17 whose output is fed to a comparator circuit 28. The static pressure signals are fed through a function generator 23 to a differencing ampliner 25 together with a required altitude varies from a store 22. The output from the differencing amplifier 25 is fed via an amplifier 26 to be compared with the dynamic head signals in the comparator circuit 28. While the altitude signal has a greater magnitude the circuit 28 operates a switch 18 to admit the dynamic head signal until the missile has descended to near its desired height when the switch 18 is changed to admit the altitude signal and maintain the missile at the desired altitude. When the missile is sufficiently close to its target an endcourse guidance system 31 is operated either by a signal from the carrier aircraft or by the altitude signals. The particularly chosen values of dynamic pressure may be varied during the missile's descent by means of a sequencing device 32 so as to modify the flight path. The control system may be applied to re-entry guidance.
Patent GB-308754-A (GB)
IPC: F23M5/08
Filed: 1928-07-06
Abstract: 308,754. Hayn, G. March 29, 1928, [Convention date]. No Parent granted (Seating fee not paid). Pulverulent-fuel furnaces.- In a locomotive provided with a plain or corrugated flue b forming a combustion chamber for burning coal dust, the flue is extended at d and lined with refractorv material l to form an ignition chamber containing a grate f on which solid fuel is burnt. The front of the chamber is formed inclined with burner openings h, an inspection opening i and firing opening k for the grate. In a modification, the wall i is vertical and the firing opening for the grate is arranged in the side wall of the ignition chamber. The flue extension may be integral with the furnace flue or attached thereto. The grate may be replaced by an auxiilary burner the flame from which is directed on to the lining l.
Patent GB-573105-A (GB)
Title: Improvements in or relating to photographic materials
IPC: G03C5/26
Filed: 1943-11-26
Abstract: 5-Mercapto-1 : 3 : 4-triazoles of the general formula <FORM:0573105/IV/1> (or a formula tautomeric therewith), wherein R2 and R3 are the same or different and are H or a hydrocarbon group, which may be unsubstituted or substituted with alkyl (e.g. methyl or ethyl), allyl, benzyl, cycloalkyl (e.g. cyclohexyl), phenyl (e.g. p-aminophenyl, p-diethylaminophenyl, p - hydroxyphenyl, o - methoxy - phenyl, or p-chlorophenyl), or naphthyl groups (e.g. b -naphthyl) are prepared by reacting the appropriate isothiocyanate with hydrazine, acylating the thiosemicarbazide produced by treatment with formic acid or an acid anhydride or chloride, and ring-closing by boiling with caustic soda.  2 - n - Hexyl - 1 - methyl - 5 - mercapto - 1 : 3 : 4 - triazole is prepared by reacting methyl isothiocyanate in ethyl alcohol with ice-cooled ethyl alcoholic hydrazine hydrate to give 4-methylthiosemicarbazide, acylating the latter in pyridine with heptoyl chloride to give 1-heptoyl-4-methylthiosemicarbazide, and ring-closing by boiling with caustic soda solution.  1 : 2-Dimethyl-, 1-methyl-2-ethyl, 2-methyl-1-phenyl-, 1-phenyl-, 1-benzyl-, 1-ethyl-2-methyl, 2-methyl-1-p-hydroxyphenyl-, 2-methyl-1-p-aminophenyl-, 2-phenyl-1-a -naphthyl-, 2-a -naphthyl-, and 1 : 2-diphenyl - 5 - mercapto - 1 : 3 : 4 - triazoles are similarly prepared.
Patent GB-516682-A (GB)
Title: Improvements relating to adjustable seats, especially vehicle seats
IPC: B60N2/16
Filed: 1938-07-04
Abstract: 516,682. Adjustable seats. CHAPMAN, A. W. July 4, 1938, No. 19760. [Class 52 (ii)] A vehicle seat adjustable for inclination comprises a frame 22 pivoted about a transverse axis 21A at or near the front of.the frame to a foundation structure 21, and, at the rear, support means comprising a plurality of pivotally interconnected parts, such as links 25, 26; angularly adjustable relatively to one another to vary the tilt of the seat. means being provided to maintain the selected setting. The links 25 pivoted to the frame 22 at each side may for example be rigidly secured to a transverse tube to the centre of which a lever 24 is rigidly attached, screw mechanism 24B, 24C connecting the lever 24 to the front of the frame. The links 26 are pivoted to the foundation frame 21 and secured to a transverse rod passing through the tube. carrying the links 25. The links 26 may have slots at the lower ends engaging pins on the frame 21 so that the seat frame can be swung forwardly about the axis 21A. Instead of the screw adjusting means, the links 25, 26 may be retained in adjusted position by frictional means, or by a spring pressed pin 92, Fig. 5. The frame 21, Fig. 1, may be mounted to slide in guides 21B.
Patent GB-1002653-A (GB)
Title: Improvements in or relating to sound damping materials
Inventor: FLATAU ARNOLD STANLEY
IPC: E21F5/02
Filed: 1963-05-17
Abstract: A sound-damping pad, capable of fusing on to sheet metal when heated, includes a layer of sound-damping composition comprising a resinous material selected from coumarone, indene, coumarone-indene, and styrene-indene resins, resins derived from homologues of such compounds, a glyceryl ester of hydrogenated abietic acid and mixtures thereof, and/or a bituminous material together with, if desired, filler material, and a coating, on at least that side of the pad intended to be applied to the sheet of metal, of an adhesive layer of acrylic latex formed by aqueous copolymerization of a monomeric material comprising 100-75% by weight of one or more alkyl acrylates, up to 15% by weight of an unsaturated carboxylic acid and up to 10% by weight of other ethylenically unsaturated monomers.  The composition may contain up to 2 parts by volume of filler material for every part of resinous and/or bituminous material.  The filler may be selected from clay, mica, whiting, slate powder, sand, barytes, talc, asbestos, ground granite, carbon black, silica, woodflour and cork, or a mixture of two or more thereof.  The alkyl acrylate may contain between 1 and 8 carbon atoms in the alkyl radical.  The acrylic latex may be plasticized with, for example, alkyl adipates, sebacates or phthalates.  The adhesive layer may take the form of a continuous or discontinuous coating and may be present in an amount of at least three grams dry weight per square foot.  The adhesive latex may be formed by aqueous copolymerization of 100-85% by weight of one or more alkyl acrylates and up to 15% by weight of an unsaturated carboxylic acid.
Patent GB-186475-A (GB)
Title: Improvements in thread controlling mechanism for sewing machines
IPC: D05B47/00
Filed: 1921-07-26
Abstract: 186,475. Thompson, W. P., (Union Special Machine Co.). July 26, 1921. Multiple-needle machines; governing needle-thread; governing under-thread. - In sewing machines for making triple interconnected covering-stitches the pull-off and take-up devices act differentially on several needle-threads. The needle threads a, b, c, pass through tension devices 21, guides 22, a pull-off arm 23, nippers 24, take-up devices 25, 26, through guides 28 and under a tension 29 on the needle-bar 5, to the needles. The pull-off arm 23 is fixed to a bracket 47 on the needle-lever which also carries a plate 46. The plate 46 acts to swing a pivoted lever 43 and so open the nippers 24 against a spring 45. The takeup device for the threads !b, c, of the left-hand and centre needles, Fig. 1, is a light tension 25 mounted on a rod 57 on the needle-lever, on which is also mounted an eyed take-up arm 26 for the thread a. The looped thread i passes through a tension device 30, under a guide-plate 31 to a threadcontrol 32, thence through a tube 33 to the looper. The cross-thread d passes through a tension 34, eyes 35, 37. on an adjustably-fixed arm 36, a nipper 24 and guide-eyes 38, 39, 40 to the thread-laving hook 41. The thread nippers 24 are open when the needle bar is at the upper end of its stroke; when it is descending the nipples grip the thread and the arm 23 pulls differing amounts of thread for each needle; the movement of the arm 23 between the eyes 35, 37 on the arm 36 also acts to pull off enough cross-thread for the next stitch. The downward movement of the thread-eye 39 on the needle-bar pulls the cross-thread snugly round the needles after they have penetrated the work. When the needle-bar begins to rise, the size of the loops thrown by the needles 10, 11 is controlled by the take-up action cf the tension 25. When the needle reaches the upper end of its stroke, the nippers are opened, sufficient slack being given to the needle 11 to complete the stroke. The needles 9, 10 have to pull some thread through the tension 21 to complete their strokes, so tensioning the threads to set the stitch. The lengths of needle-thread pulled off may be independently varied in the modification shown in Fig. 12, in which the threads a, b, c, pass from a pull-off arm 70 through thread-eyes in fingers horizontally adjustable in the standard 74.
Patent GB-841892-A (GB)
Title: Improvements in or relating to baking ovens
Inventor: LAWSON-TANCRED HENRY
IPC: A21B1/48
Filed: 1957-06-25
Abstract: 841,892. Bakers' ovens. TANCRED & LANGLEY Ltd. Sept. 16, 1958 [June 25, 1957], No. 19973/57. Class 51 (2). In a continuous bakers' oven, hot air is discharged towards the conveyer 2 upwardly through transverse slots 15 in heating chambers 10 and 11 and downwardly through transverse slots 18 in an upper heating chamber 17, the air being heated by hot gases continuously recycled through an oil-fired combustion chamber 7 and through ducts 13 disposed longitudinally in the heating chambers 10 and 11. The combustion gases from the chamber 7 pass in turn through a fan 8, through a divided flue 12 leading to the sets of ducts 13, and through return flues 14 opening into the chamber 7 near the burner 6. Air extracted from the baking chamber by a fan 9 is returned by ducts 16 to the chambers 10 and 11 from which ducts 19 lead part of it to the upper heating chamber 17. In a modification, Figs. 4 and 5 (not shown), gases from the cylindrical combustion chamber pass through spaced peripheral flues to a main flue, the chamber and flue construction being totally enclosed by an air heating space.
Patent GB-223681-A (GB)
Title: Improvements in and relating to rhythmic interruption of electric currents
IPC: H01J13/48
Filed: 1923-08-03
Abstract: 223,681. Pearce, G., and Watson & Sons (Electro-Medical), Ltd. Aug. 3, 1923. Actuating and controlling.-Direct current from a source f is rhythmically interrupted by a neon or like lamp a connected in known manner in series with a resistance d shunted by a condenser b. The invention consists in connecting a relay c of the electromagnetic or moving-coil type in the circuit, so as to control stronger currents in a second circuit e. The invention is applicable for operating a flash sign and for other purposes.
Patent GB-596889-A (GB)
Title: Improvements in or relating to arrangements for graduating the scales of electrical instruments
IPC: G01R27/32
Filed: 1945-08-03
Abstract: 596,889. Indicators. STANDARD TELEPHONES & CABLES, Ltd., and DALY, C. T. Aug. 3, 1945, No. 20005. [Class 106 (iv)] [Also in Group XXXVI] An electrical instrument has a photographically sensitive scale which is graduated by recording thereon a linear trace produced on a cathode - ray screen when the instrument response is correct. As applied to a variable oscillator 1, Fig. 1, standard frequencies from a harmonic generator 11 are selected at 12 and applied to a balanced modulator 14 to modulate an oscillation from 15 ; the sum and difference frequencies are applied to a similar modulator 16 to which the variable oscillation is also applied, and the output is passed through a filter 17 tuned to the frequency of the oscillation from 15 so that the cathode ray is deflected when the frequencies of 1 and 12 are identical. The invention is also applicable to a variable oscillator of the heterodyne type, Fig. 2, (not shown). As applied to the calibration of a variable resistance, the resistance is connected in a Wheatstone bridge for comparison with a standard resistance, and the out-ofbalance voltage is applied to deflect the cathode ray off the screen, so that as balance is reached a linear trace is made on the screen for recording on the scale. Specifications 576,192 and 583,246, [Group XXXVI], are referred to.
Patent GB-1012960-A (GB)
Title: 4-methyl-1,3,5(10)-estratrien-17ª-ol derivatives, and the preparation thereof
IPC: C07J1/00
Filed: 1964-02-18
Abstract: The invention comprises 4-methyl-17-acetyloxy -1,3,5(10)-16-estratetraene and 4-methyl-16a  - bromo - 1,3,5(10) - estratriene - 17 - one. These compounds are obtained by treating 4-methyl-1,3,5(10)-estratriene-17-one with isopropenyl acetate and subjecting the resulting 4 - methyl - 17 - acetyloxy - 1,3,5(10),16 - estratetraene to bromination.