baber/WOPTO huggingface dataset:
Patent GB-381963-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic anhydrides
Filed: 1931-07-15
Abstract: Aliphatic anhydrides are produced by heating salts of the corresponding acids such as acetates of metals of low basicity such as copper, tin, nickel, silver, chromium, and mercury, the acetates of which normally yield no acetone or not substantial quantities of acetone, on heating; cupric and chromic acetates are especially suitable.  The salts may be heated alone or in admixture with normal salts of strong mineral acids such as sulphates or chlorides, preferably such salts of the metals of low basicity.  The salts are preferably heated in the anhydrous form, and any water may be removed by heating preferably over sulphuric acid or in a current of gas or vapour or under reduced pressure. The acetates are preferably dried at temperatures not exceeding 200 DEG  C., and when the mineral acid salt requires a higher temperature (such as 240 DEG  C. for copper sulphate) it is dried before mixing with the acetate.  For the decomposition, the acetates with or without the mineral acid salts, may be simply heated, or heated in a current of air, nitrogen, carbon dioxide, or other indifferent gas or in a current of an indifferent vapour such as benzene, petroleum ether or acetic acid.  The temperature range is about 200-450 DEG  C., and normal, increased, or reduced pressure may be employed.  The residue may be treated with acetic acid to form more acetate, but preferably any metal present is first oxidized by heating in a stream of air or by exposing it to the air after the decomposition, while still at about the decomposition temperature.  Other aliphatic acid salts such as propionates, butyrates, or methoxy-acetates may be used in the same way as acetates to produce the corresponding anhydrides.  In an example crystals of cupric acetate are dried by heating at 140 DEG  C. and then under vacuum at 105 DEG  C. and then mixed with anhydrous copper sulphate and heated to 250-270 DEG  C. at an absolute pressure of 10-15 mm.  The anhydride vapours are condensed and the condensate may be fractionally distilled.
Patent GB-499336-A (GB)
Title: Manufacture of azo dyestuffs on the fibre
IPC: C09B33/10
Filed: 1937-07-22
Abstract: Azo dyes are made on the fibre by coupling a diazo compound with a component of the formula <FORM:0499336/IV/1> (Ar=phenyl or naphthyl which may be substituted and Ac=acyl), the diazo compound being generated from a stabilized diazo compound such as a diazoamino compound, azosulphonate or a nitrosamine. The dyestuff components must be free from SO3H and COOH groups.  The term diazo compound includes tetrazo compounds. Compositions comprising the stabilized diazo compound and the coupling component may be applied to the fibre and developed by acid treatment.  Dark brown and black shades are obtained on cotton, regenerated cellulose and cellulose esters and ethers. According to examples, cotton piece goods are printed with a paste containing 3-nitrobenzene-azo-41-acetylamino-61-naphthol, the diazoamino compound from 4-chlor-2-aminoanisole and methylglucamine, cellosolve, caustic soda and starch tragacanth, dried and treated with steam containing acetic acid vapour; other components specified are dianisidine, aniline, 2 : 5-dichloraniline, 4-chlor-2-aminoanisole, 4-chlor-2-aminotoluene, o-chloraniline, 4-chlor-2-aminophenetol, o-anisidine, 4-chlor-2 : 5-dimethylaniline, 4-benzoylamino-2 : 5-dimethoxyaniline, 5-nitro-2-aminoanisole, 1-methoxy-2-naphthylamine, 4-chlor-2-aminodiphenylether, m-aminobenzotrifluoride, o-aminoazotoluene, 4 : 41-diamino-diphenylamine; piperidine - a  - carboxylic acid, sarcosine, 1-methylaminoethane - 2 - sulphonic acid, 1-naphthylamine - 2 : 4 : 8 - trisulphonic acid, 2 - ethylamino - 4 - sulphobenzoic acid, proline, nipecotinic acid, benzyleneimine - p - sulphonic acid; 4-nitro-2-methoxybenzeneazo-41-acetylamino - 61 - naphthol, 3 - nitrobenzeneazo - 41-acetylamino - 71 - naphthol, 3 - nitrobenzeneazo-21 - acetylamino - 61 - naphthol, 2 : 5 - dichlorbenzeneazo - 41 - benzoylamino - 61 - naphthol, 3-amino- or 3-acetylaminobenzeneazo-41-acetylamino - 61 - naphthol; the azo dyes aniline, 3 - nitro - 4 - aminotoluene, 4 - chlor - 2 - aminotoluene, 4- or 5-nitro-2-aminoanisole, 4-chlor-2-aminoanisole, o- or p-phenetidine, m-nitroaniline --> 1 : 7-, 2 : 6-, or 1 : 5-aminonaphthol acylated with acetic anhydride, benzoyl chloride, a -furoyl chloride, hexahydrobenzoyl chloride or methylchlorocarbonate. The Specification as open to inspection under Sect. 91 comprises the coupling on the fibre of diazo or tetrazo compounds derived from amino or diamino compounds with components of the formula <FORM:0499336/IV/2> In a further example cotton is padded with 2 : 5 - dichlorobenzeneazo - 41 - acetylamino - 61-naphthol and developed with diazotized 2 : 5-dichloraniline.  Ar in the above formula may also be the residue of a -aminoanthraquinone. 3-Aminocarbazole is specified as a diazo component.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1245219-A (GB)
Title: Amino acid derivatives
IPC: A41B3/00
Filed: 1970-04-28
Abstract: 1,245,219. Amino-acid derivatives. BOEHRINGER MANNHEIM G.m.b.H. 28 April, 1970 [30 April, 1969], No. 20421/70. Heading C2C. Novel compounds of Formula I wherein R 1  is a naphthalene or indene radical, which may be hydrogenated, or an aryl radical, which may be substituted by halogen atoms or hydroxyl, alkoxy, alkenyl, alkenyloxy, alkyl, alkoxyalkyl, trifluoroalkyl, alkylmercapto, alkenylmercapto, amino, alkylsulphonylamino or acylamino radicals, R 2  is a hydrogen atom or an alkyl radical containing up to 3 carbon atoms or an aralkyl radical, R 3  is a hydroxyl or amino group or an alkoxy, alkylamino or dialkylamino radical or an N-piperazyl radical, which may be N<SP>1</SP>-Substituted, and A is an optionally alkylated or arylated alkylene chain containing up to 3 carbon atoms, which can also carry a further carboxyl or carbalkoxy radical; and the physiologically compatible salts thereof are prepared by one of the following methods: (a) a compound of formula is reacted with a compound of formula (b) a compound of formula R 1 -O-CH 2 -CH(OH)-CH 2 Z, where Z is a reactive ester group is reacted with a compound of formula R 2 HNACOR 3 ; (c) a compound is reacted with a compound of formula Z-A-CO-R 3 ; and (d) an intermediate of Formula VII is reacted with a compound of formula H-R 3 ; and when R 2  in the product obtained is H this is, if desired, N-alkylated in known manner or, when R 2  is a benzyl radical, this is, if desired, debenzylated in known manner and the grouping -CO-R 3  in the product obtained is, if desired, changed by saponification, esterification, transesterification or amidation and free bases or acids of general Formula (I) are, if desired, converted into pharmacologically compatible salts by reaction with acids and bases, respectively. Intermediates of Formula VII above are obtained by reaction of a compound of formula with a compound of formula Br-A-COR 3  and a base or by reaction of a compound of Formula II above with a compound of formula R 2 NHACOR 3  and a strong base. N - 1 - (α - naphthyloxy - 2 - hydroxypropylamine is prepared by reaction of hydrazine hydrate and alkali on N-1-(α-naphthyloxy-2- hydroxypropyl) phthalimide obtained by reaction of α-naphthyl glycide ether and phthalimide. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having adrenergic activity comprise an above novel compound and a carrier therefor.
Patent GB-1534818-A (GB)
Title: Drive shafts
IPC: F16C3/035
Filed: 1977-05-16
Abstract: 1534818 Telescopic drive shafts; bearings EBERHARD HOECKLE GmbH 16 May 1977 [20 July 1976] 20441/77 Headings F2U and F2A A telescopic drive shaft comprises an insert 9 between the shafts 1, 2 and circulating rolling elements 13 which, when transmitting torque, run in axial grooves 3 provided in the inner shaft and the recesses formed by adjacent guide cylinders 15 in a ring of such cylinders held under compression and seated in wavelike depressions 16 in the insert. The insert 9 may be made of plastics or aluminium and provided with four axial splits 13a to provide a return circuit for the four rows of balls 13 shown.
Patent GB-723780-A (GB)
Title: Improvements in and relating to apparatus for the liquid treatment of artificial textile threads
Inventor: EDGINGTON ALEXANDER GEORGE
IPC: D01D10/04
Filed: 1951-08-31
Abstract: In apparatus for the aqueous liquid treatment of artificial textile threads comprising a pair of identical rollers over and along which the thread can pass in a number of spaced convolutions, the rollers are divided into two or more treatment zones, each roller has a single circumferential continuous groove between each pair of zones, the rollers are arranged with the grooves opposite to one another and substantially in the same plane, and an external thread guide is provided between each pair of zones to locate the thread on either side of the <PICT:0723780/IV (a)/1> grooves and thus prevent it from entering the grooves.  Preferably the edges of each groove are straight and each groove is at right angles to the axis of the roller.  In order to assist the initial threading-up of the rollers, one part of the rollers may be axially movable, in order that the groove can be closed temporarily, or one part of the rollers may have a sleeve which can be moved axially to close the groove.  As shown, a thread 3 travels over and along two canted cantilever rollers 1 and 2 having initial stepped portions 4 and 5 from which the thread 3 is led on to the main parts of rollers 1 and 2 by a thread guide 6. The main parts of rollers 1 and 2 are divided longitudinally into two treatment zones by continuous circumferential grooves 7.  A thread guide 8 locates the thread on either side of the grooves 7. The rollers 1 and 2 are mounted on shafts 9 driven through gearing 10 by a motor (not shown).  The lower roller 2 is tilted slightly downwards to the thread entrance end.  A pipe 11 supplies a liquid to the lower roller 2.  The liquid separates from the rollers 1 and 2 in the region of the grooves 7 and collects in the drip-pan 12.  Surplus liquid carried over by the thread 3 from the coagulation bath collects in a drippan 13.  Specification 723,779 is referred to.
Patent GB-459924-A (GB)
Title: Improvements in or relating to rocket engines
IPC: F02K9/64
Filed: 1935-07-19
Abstract: 459,924. Making heat-interchangers. SANGER, E., 66, Penzigerstrasse, Vienna. July 19, 1935, No. 20584. Convention date, Feb. 9. [Class 83 (ii)] [See also Group XII] Pipes or passages, for a cooling medium, surround the walls of the combustion space of a continuous - combustion rocket - engine and may be formed, as shown in the Figure, by closing grooves, cut or cast in the walls, by shrinking or fastening a shell on to the grooves or by soldering, welding or casting. The combustion chamber may be formed of pipes welded, soldered or cast together and may be lined, e.g. with silver, chrome, enamel or aluminium oxide.
Patent GB-612503-A (GB)
Title: A process of preparing egg products more particularly products made of duck's eggs
IPC: A23B5/14
Filed: 1939-07-15
Abstract: The contents of eggs, particularly ducks' eggs, or the whites and yolks separately, are sterilized without sweetening by diluting with water, or mixing with a salt having the property of raising the coagulation temperature of the albuminous substance, e.g., sodium citrate or tartrate, and heating to a temperature between 50 DEG C. and 70 DEG C. sufficient to kill paratyphoid germs without coagulation.  The whites are heated with about 5 per cent of water at 53 DEG C., the yolks with about 15 per cent of water at 60 DEG C., and the mixed whites and yolks with about 5 per cent of water at 55 DEG C., for 15 minutes.  The salt may be dissolved in, but is preferably added as an aqueous solution to the egg material and the mixture heated to 65 DEG C. or even as high as 70 DEG C., e.g. 100c.c.s./litre of a 10 per cent sodium citrate solution may be added and the mixture heated to 65 DEG C. for 10 minutes.  The products may be refrigerated, preferably in cans which may be stored below -10 DEG C.
Patent GB-186311-A (GB)
Title: An improved surveying transit
IPC: G01C5/00
Filed: 1922-07-28
Abstract: 186,311. Kourkene, H. July 28, 1922. Tacheometers. - In a surveying-transit for measuring the distance of a stadia rod of the kind in which the image of a fixed length on the rod is intercepted between a fixed and a movable cross-hair, and the distance is read on a rotatable disc mounted on the instrument, provision is made for focusing the telescope automatically in accordance with the rotation of the disc. The disc A, rotatable about the pivotal axis O of the telescope, carries a gear wheel engaging two wheels d fixed on screwed shafts c, Fig. 2, which serve to move a carriage b on which is mounted the movable cross-hair a. The amount of rotation of the disc is thus a measure of the. displacement of the cross-hair. Displacement of the objective G in accordance with the rotation of the disc A for automatic focusing is effected as follows. A plate T, fixed to the side of the disc is formed with a spiral slot S, and a plate F pivoting with the telescope about the axis 0 is formed with a slot V disposed perpendicular to the longitudinal axis of the telescope. A pin W engages the slots S, V and also a slot B in the longer arm of a bell-crank lever L pivoted at P to an arm M pivoted to the telescope at O<1>, and the shorter arm of the lever is formed with a slot in which slides a pin E on an arm secured to the casing of the objective G. The point O<1> is at the centre of a circle passing through 0 and P. To enable the position of the pivot P to be varied in accordance with the different fixed lengths in use on the stadia rod, a pin on the arm M is adjustable along an arc N. The procedure adopted for graduating the disc A and the conditions to be fulfilled by the spiral of the slot S are set out in the Specification. Levelling-staves. - The stadia rod, which may be used either horizontally or vertically according as the cross-hairs are vertical or horizontal, has different fixed lengths painted in contrasting colours, and a line is painted close to one edge for use in sighting tn determine the altitude when the rod is used horizontally.
Patent GB-1536872-A (GB)
Title: Electrical inter-connection method and apparatus
IPC: H01L21/60
Filed: 1975-05-15
Abstract: 1536872 Welding by pressure; connecting wires to components; spark erosion WELDING INSTITUTE 13 May 1976 [15 May 1975] 20701/75 Headings B3R B3V and B3A In thermocompression or, as shown, ultrasonic bonding the end of an aluminium or aluminium alloy wire to a component or terminal, e.g. in the wire connection of an IC silicon chip to a substrate circuit, by forming a ball on the wire end by spark discharge and thereafter positioning the ball on, and bonding it to, the component or terminal, the spark discharge is formed, in a gas shield, by applying a voltage not greater than 200 v (and preferably less than 50 v) between the wire end and an electrode (preferably carbon) and bringing the wire end and electrode into a temporary contact to fuse the wire end and break said contact, the resulting spark discharge forming the ball. The wire end may be of either polarity but is preferably negative with respect to the electrode. As shown, wire 1 extends from a reel 2 through a conductive clamp 3 and through a capillary nozzle 4 formed on a horn 5 of an ultrasonic welding transducer 6. The clamp 3, horn 5 and transducer 6 are mounted on a spring-biased lever 32 pivotable by a cam 30. The spark discharge electrode 9, is mounted in a holder 10 provided with a transparent hood 11 which is slotted at 15 to accept entry of the nozzle tip and wire. The holder 11 is mounted on an arm 12 pivotable by a cam 13. Shielding gas is supplied at 24 to flow through the holder 10 and out through the hood slot 15. The cams 30, 13 are driven by a common driving means 14. A capacitor 20, across a power supply 23, is connected, in series with a switch 21 and a variable resistance 22, between the clamp 3 and the electrode 9. A base 8 supports a microcircuit 7 to which the wire is to be bonded. In operation, after formation of the ball on the wire end with the cams in the positions shown the electrode 9 is withdrawn and the lever 32 is pivoted clockwise to bring the ball into contact with the microcircuit (Fig. 2, not shown). The transducer 6 is then energized to effect the ultrasonic bond. Subsequent bonding of the wire to an adjacent lead-out terminal (35) may be effected by wedge bonding, as by use of the nozzle 4. Reference has been directed by the Comptroller to Specification 1,341,259.
Patent GB-148901-A (GB)
Title: Improvements relating to the transport of heavy loads
IPC: B60P3/40
Filed: 1920-07-10
Abstract: 148,901. Brõuer, R. April 21, 1915, [Convention date]. Addition to 148,899. No Patent granted (Sealing fee not paid). Field carriages.-A coupling in the form of a jib or cantilever is adapted to transfer the weight or part of the weight of a vehicle to an adjacent vehicle. A gun carriage 1 is provided at its front end with a jib-like braced frame 5 which couples the carnage to the tractor 14 and transfers some of the load thereto. The point of connexion to the tractor is adjustable longitudinally to vary the distribution of load between the two axles. A similar frame 6 may be fitted to the front of the tractor 14 and provided with a screw adjustment 13 by which it is connected to an additional tractor. The frames may be fitted to both ends of the gun-carriage.
Patent GB-337767-A (GB)
Title: Process for the production of iron-chromium alloys which are stable on heating
IPC: C22C38/28
Filed: 1929-07-05
Abstract: 337,767. Skodo Works, Plzen. April 18, 1929, [Convention date]. Drawings to Specification. Alloys.-Iron. chromium alloys containing 20- 40 per cent of chromium and 0.2-3 per cent of carbon contain also 1-15 per cent of titanium and up to 15 per cent of aluminium, preferably 1-5 per cent of titanium and up to 5 per cent of aluminium.
Patent GB-148943-A (GB)
Title: Improvements in or relating to vertical retorts and gas-producers
IPC: C10B1/04
Filed: 1920-07-10
Abstract: 148,943. Hennebutte, H. G. March 12, 1918, [Convention date]. Retors and methods of working; producers.-In a continuous retort, the gases are withdrawn from the successive zones of increasing temperature through central superposed outlet pipes P2, P3, P4. The retort is heated by circular flues E, F in communication with each other. A cooling extension G is provided at the base together with a discharging- means C. In a modi. fication, the extension G is replaced by a combustion chamber to enable the apparatus to be as a producer.
Patent GB-1312332-A (GB)
Title: Method of and apparatus for applying pattern or fastening threads to a fabric during weaving
IPC: D03C1/26
Filed: 1970-04-30
Abstract: 1312332 Inserting figuring threads J MULLER 30 April 1970 [5 May 1969] 20803/70 Headings D1E and D1K A figuring or fastening thread 8 is inserted into a fabric 1 during weaving by a feed member 9 which passes downwardly through the warps to form a loop 11 of figuring thread through which weft 5 is inserted whereby the figuring thread is secured in the fabric. The feed member 9 reciprocates verticaly, and may also be shogged weftwise when out of the warps. A plurality of feed members may be used to insert a number of figuring or fastening threads. Weft 5 is inserted in loops by a needle 6, the loops being retained on the opposite side of the fabric by a latch selvedge needle 7. Non textile objects such as wire (12), Fig. 5 (not shown), or rows of beads or zip fastener claws may be fastened to the fabric by the thread 8.
Patent GB-1387854-A (GB)
Title: Electronic apparatus for measuring reflex actions
IPC: A61B5/11
Filed: 1972-05-04
Abstract: 1387854 Electro-physical measurement-reflexaction C J BIRTLES 20 July 1973 [4 May 1972] 20830/72 Heading G1N [Also in Division H3]  The invention relates to the automatic measurement of animal reflexes, particularly human Achilles reflexes for thyroid diagnosis, using a photo-electric detector responsive to light reflected from the ball of the foot. The measurement is made as the time for the reflex response signal to reach a fraction e.g. half of its peak value. The time may be expressed as a clock pulse count, Fig.3, or a ramp signal from an integrator, Fig.4. A typical response curve is illustrated in Fig.1 with the point 1 indicating the hammer stimulus, and 6 the half peak height (arrived at in time t). FIG.3 OPERATION: The reflex signal is applied through a buffer amplifier T 1 , T, and to a pre-amplifier 12, and thence to a threshold (Schmidt trigger) 13 to actuate bi-stable 16 opening AND-gate 17 to pass clock pulses from 18 to counter 19 and printer 20. The output of the preamplifier is also applied via diodes D1, D2, to a memory/divided by two circuit 14 including capacitor C2 and resistors R7, R8 to provide a reference input to comparator 15 which switches bi-stable 16 to close the gate when the direct signal via D3 falls below the half-peak reference. FIG.4 OPERATION: The input is applied to terminals R, Y of amplifier OA1 feeding a halfpeak memory OA2 and comparator OA3, to reset at half-peak a bi-stable TR 2 , TR 3  which is initially triggered by the hammer switch. When triggered this bi-stable applies a reference voltage to an integrator TR 4 , OA5. The ramp output indicated by M, is also applied to a "threshold" comparator OA4 controlling a clamp transistor TR 1  to supress the hammer-stimulus-pulse, at the half-peak memory. (For Figures see next page)
Patent GB-208451-A (GB)
Abstract: 208,451. Petter, G. B. Sept. 14, 1922. Transfer-mechanism particularly for key set and operated machines such as that described in Specification 208,232, is so devised that consequent transfers are deferred until the succeeding operation of the machine or the transfer-clearing action necessary at the end of a summation. The transfer pin 23 carried by a numeral wheel 6 effects at transfer a quarter rotation of a compound block comprising an oblong piece 22 adapted to be engaged by the transfer pin, a square piece 24 against which rests a pivoted justifying weight 27 and a diagonally set blade 25. The block having been turned by the pin, as stated above, during the down stroke of the actuating lever 8, the blade is now in a position to be engaged and turned a second 90‹ on the up stroke by upstanding arms 26 carried by a lever 19 moved in synchronism with the lever 8, and in the further rotation the blade drives the next higher numeral wheel through one step. At the end of a complete summation, the lever 19 may be depressed a number of times independently of the actuating levers 8 in order to clear the machine of any consequent transfers remaining from the last actuation. Specification 192,532 also is referred to.