baber/WOPTO huggingface dataset:
Patent GB-654327-A (GB)
Title: Improvements in or relating to processes for the production of streptomycin
IPC: C07H15/238
Filed: 1948-11-04
Abstract: Substantially anhydrous streptomycin salts are prepared by adding to an aqueous solution, suspension or paste of a streptomycin salt an organic solvent having a substantial solubility for water (at least 5 per cent, preferably at least 10 per cent) and capable of forming a low-boiling azeotrope with water, and heating the mixture to remove all the water present in vaporous admixture with the organic solvent. Suitable organic solvents are aliphatic alcohols of at least 2 carbon atoms per molecule, aliphatic ketones of at least 4 carbon atoms, aliphatic carboxylic acid esters, and mixtures thereof.  The heating may be effected by flash distillation, simple distillation, spray-drying or especially by supplying the mixture of aqueous streptomycin salt and organic solvent to a heated surface drier, preferably a drum drier, two forms of the latter apparatus being described with drawings.  The process is particularly applicable to the drying of a precipitate obtained by adding to an aqueous solution of streptomycin sulphate or hydrochloride a water-miscible organic solvent in which the streptomycin salt is insoluble (e.g. acetone, or also methyl alcohol in the case of the sulphate).  Other salts which may be dried include those of carboxylic and sulphonic acids, e.g. streptomycin acetate, propionate and helianthate.  In examples, the following organic solvents are employed: ethyl, n-propyl, n- and iso-butyl and amyl alcohols, ethyl acetate and lactate, and methyl isobutyl ketone.  Isopropyl alcohol, methyl ethyl ketone and amyl acetate are also specified.ALSO:Substantially anhydrous streptomycin salts are prepared by adding to an aqueous solution, suspension or paste of a streptomycin salt an organic solvent having a substantial solubility for water (at least 5 per cent, preferably at least 10 per cent) and capable of forming a low boiling azeotrope with water, and heating the mixture to remove all the water present in vaporous admixture with the organic solvent.  Suitable organic solvents are aliphatic alcohols of at least 2 carbon atoms per molecule (e.g. ethyl, n- or iso-propyl, n- or isobutyl or amyl alcohol), aliphatic ketones of at least 4 carbon atoms (e.g. methyl ethyl or isobutyl ketone), aliphatic carboxylic acid esters (e.g. ethyl or amyl acetate or ethyl lactate), or mixtures thereof.  The heating is preferably effected by spray drying or especially by supplying the mixture of aqueous streptomycin salt and organic solvent to a heated surface drier, preferably a drum drier, two forms of the latter apparatus being described with drawings.
Patent GB-298244-A (GB)
IPC: F42C1/06
Filed: 1928-10-06
Abstract: 298,244. Soc. Italiana E. Breda, (Assignees of Scaglia, G.). Oct. 7, 1927, [Convention date]. Addition to 272,221. Projectiles; fuzes.-Relates to bombs intended to be thrown by hand or by firearms and comprising an explosive bursting charge 8<1> mounted against a concave seat in the end of the outer shell 27 and a firing pin 6 mounted by a universal joint at the other end of the shell, these two parts being kept apart, until impact by a spring 10<1>, and impact being adapted to cause the firing pin to fire a percussion cap 9 and explode a detonator 21, as described in the parent Specification. According to the invention, the firing pin 6 is so mounted that it can move longitudinally relatively to the universal joint. In Fig. 1, the firing pin 6 is secured in a tube 31, which slides in a sleeve 29 provided with a pair of spherical flanges 30 forming a universal joint with the spherical end 28 of the shell. This joint is covered by a hood 33 and the upward movement of the tube 31 is limited by its abutment against that hood or by the abutment of a flange 32 on the tube against the sleeve 29. The parts are held in safety position by a transverse bolt 22 hinged to a cap 23 adapted to become detached during flight, but locked in place before use by a safety-pin 24 provided with a finger ring for its removal. In a modification, the end 28 of the shell is closed, and the universal joint consists of a spherical surface on the tube 31 abutting against a spherical surface in the closed end 28 of the casing.
Patent GB-279894-A (GB)
Title: Method of protecting electric motors
IPC: H02K3/44
Filed: 1927-10-28
Abstract: 279,894. Zwicky, G. Nov. 1, 1926, [Convention date]. Insulation. - The windings of electric motors exposed to the action of acid vapours, for example the motors of refrigerating machines, are protected, in addition to having normal insulation, by being coated with a layer of double water glass (i.e. a silicate of great viscosity and containing very little water), dusted, while wet, with powdered glass and dried by heat.
Patent GB-483665-A (GB)
Title: Improvements in or relating to printing mechanism, applicable to statistical and like machines
Filed: 1936-10-23
Abstract: 483,665. Statistical machines. BRITISH TABULATING MACHINE CO., Ltd. Oct. 23, 1936, No. 28842. Convention date, Oct. 25, 1935. [Class 106 (i)] [Also in Group XVI] Relates to a machine for printing on a perforated record card the information represented by the perforations. The cards are fed from a stack by a picker 23, Fig. 1, operated from a driven main shaft 12. Worm gear on the shaft 12 drives a shaft 17 which through a crank 19 and lever 21 operates the picker. The cards pass between driven feed rollers 25 and operate a feeler lever 29 which closes contacts 31, thus initiating the card-reading circuit. Feed rollers 34 then press the card into contact with the drum 33 and as it passes over the drum it is read by brushes 32. Brushes 32 and rollers 34 are mounted on a latched frame 36 and may be swung out of the way. The card is gripped to the drum 33 by fingers 40, Fig, 3, pressed into action by spring plungers 42, and cammed into and out of action by cam faces 43 secured to the machine frame. The drum is rotated by a gear 45, Fig. 2, which is loosely mounted on the axle 44 of the drum and carries a spring-pressed pawl 51 adapted to engage any of three notches in a disc 52 fast to the axle 44. The gear is rotated by a slidably mounted rack 46, reciprocated by a cam 48 on the axle 17. If it is desired to give an extra feed to the card to present the second, rather than the first line for printing, an auxiliary cam 48a is protruded by the action of a cam 54 which has two positions of adjustment on the axle 17. A fixed guide plate 82, Fig. 1, and a moving plate 83 are provided. The plate 83 is carried by a bell-crank and is swung back to leave a gap, through which impression may take place, through a gear 87, Fig. 2, by a cam-operated toothed bell-crank 89. The shaft 44 drives, through gearing, feed rollers 67, Fig. 1, which pass the card from the drum 33 to a stacker, comprising a cam-reciprocated pusher plate 71, and a backing plate 72, urged to the left by a wire 73 and weight 74. When the stacker is full contacts 76 in the motor circuit are opened by a projection 75. A cam-operated brake arm is arranged to arrest the drum 33 at the end of its movement.
Patent GB-818598-A (GB)
Title: Dispenser
IPC: A46B11/00
Filed: 1956-09-21
Abstract: 818,598. Brushes. FARRELL, J. Dec. 12, 1957 [Sept. 21, 1956], No. 28889/56. Class 19. [Also in Group XVII] A dispenser for applying haircream comprises two pressure plates 1, 2 pivoted to one another to receive between them two collapsible tubes 5 and to serve as the dispenser handle, a brush for brushing the hair while the tubes are squeezed and means for conveying cream from the tubes to the brush. The plate 1 has an end 3 and ears 4, and the tubes 5 each have a nozzle assembly 6 which is connected to a flexible pipe 7 leading to holes 8 respectively in the back of the brush 9 mounted by its handle on the plate 1 by screws 10. Extensions 11 and 12 of plates 1 and 2 respectively have ears 13 pivoted together by a pin 14. The plate 2 has stiffening bars 16 and a rolled end 17. The nozzle assembly 6 comprises a member 18, a flanged member 19 receiving a pipe 7, and a screw cap 20. The member 19 is reversible to fit partially inside the member 18, when it may be sealed by a gasket, Fig. 3 (not shown). Alternatively the end of pipe 7 may be flanged to replace the member 19, or the pipe 7 may fit directly over the member 18 which may be smooth-walled externally. The tubes 5 may be of plastic, e.g. polythene, and the pipes of resilient plastic, e.g. polyvinylchloride. The dispenser may be used for dyeing or bleaching hair.
Patent GB-909018-A (GB)
Title: Improvements in or relating to the tuning of radio receivers
IPC: H03D7/16
Filed: 1960-08-20
Abstract: 909,018. Radio receiving circuits; frequencychanging circuits. COLE Ltd., E. K., and WOODHALL, N. M. Aug. 14, 1961 [Aug. 20, 1960], No. 28909/60. Classes 40 (5) and 40 (6). A radio receiver for three V.H.F. signals which bear the relationship x-n, x, x+n consists of a double heterodyne system which comprises a first oscillator which will provide, with x a beat frequency f and with the other, signal frequencies f+n and f - n, a second oscillator tuned to frequency n and selective connecting means between the output of the first mixer circuit and the second mixer, whereby any one of the three intermediate frequency signals can be fed to the second mixer. In the embodiment the three V.H.F. signals are the Home, Light and Third programmes of the B.B.C. Sutton Coldfield station, the spacing n between the signals being 2.2 mc/s. The incoming signals are amplified by wideband amplifier 2 and then passed to an oscillator mixer 3, the oscillator section of which is tuned to 79.8 mc/s. This mixer produces three intermediate frequencies of 8.5, 10.7 and 12.9 mc/s. The required frequency is selected by the tuned circuit 5 and passed to a second mixer where if the I.F. frequency 10.7 mc/s. is selected the oscillator 7 may be switched off to avoid interference but if the 8.5 or the 12.9 mc/s. signals are selected the mixer beats the incoming signal with the 2.2 mc/s. oscillator 7 and the resultant 10.7 mc/s. signal is taken from the output to the I.F. stage of the receiver. The oscillators may be crystal controlled. In areas where the stated frequency relationships does not hold the frequency of the second oscillator may be changed to produce the required I.F. when the station selection means is actuated.
Patent GB-904794-A (GB)
Title: New azo colouring matters containing 2-hydroxyquinoline residues
Inventor: BUCKLEY DONALD
IPC: C09B29/033
Filed: 1959-08-24
Abstract: Acetoacet-2:5-dimethylanilide is cyclised with sulphuric acid to give 2-hydroxy-4:5:8-trimethylquinoline which is nitrated to give 6-nitro-2-hydroxy-4:5:8-trimethylquinoline, the nitro-compound being reduced to 6-amino-2-hydroxy-4:5:8-trimethylquinoline: 6-amino-7-chloro - 2 - hydroxy-4-methylquinoline and 6-amino - 5 - chloro-2hydroxy-4:8-dimethylquinoline are prepared similarly the intermediate nitroquinoline being described in the first case, first case  3 - Methoxy-4-acetamidoaniline is reacted with diketene to give 3-methoxy-4-acetamido-acetoacetanilide which is treated with sulphuric acid to give 6-amino-7-methoxy-2-hydroxy-4-methylquinoline. 2-Hydroxy-5:8-dimethoxy-4-methylquinoline is nitrated to give to the 6-nitro compound which is reduced to give 6-amino-2-hydroxy-5:8 - dimethoxy - 4 - methylquinoline.  U.S.A. Specification 2,754,293 is referred to.ALSO:The invention comprises monoazo dyes which is one of their tautomeric forms are of formula <FORM:0904794/IV (b)/1> wherein A may be substituted by one or two methyl or alkoxy groups or chlorine atoms, X is hydrogen, chlorine, methyl or alkoxy, one of the groups Y and Z is hydrogen, chlorine, methyl or alkoxy, the other being hydrogen or alkoxy provided that not more than two of X, Y and Z are methyl or alkoxy and also provided that when X is hydrogen, Z is also hydrogen.  They are prepared in substance or on the fibre by diazotising a 6-amino-2-hydroxy-4-methyl-quino-line and coupling with a suitable acetoacetanilide.  They are used to colour paints and polymeric materials and in printing papers and textiles in yellow to orange shades.  Many dyes of the above formula are specified in examples.  U.S.A.  Specification 2,754,293 is referred to.
Patent GB-1000156-A (GB)
Title: Gripping devices for lifting articles
Inventor: WILLIAMSON DAVID THEODORE NELS
IPC: B65G47/91
Filed: 1962-07-27
Abstract: 1,000,156. Gripping articles. MOLLINS ORGANIZATION Ltd., D. T. N. WILLIAMSON, and G. ORLOFF. July 26, 1963 [July 27, 1962], No. 28960/62. Heading B8H. The jaws 1, Fig. 1, of a gripping device have inserts 8 of titanium alloy which has a high coefficient of friction. The jaws are held against a load 11 by suction through conduits 3, 4 and bores 7, sealing being effected by a rubber ring 9. In a second embodiment, Fig. 2, as a flexible band 20, supporting titanium pads 21, is urged towards an irregularly shaped load, it folds round it and arms 13, 14 fold about a pivot 15 against the controlling action of a ram 16, 18. Rubber inserts 22 provide resilience. Other arrangements are possible, e.g. titanium studs embedded in rubber or plain titanium surfaces may be used. Specification 966,609 is referred to.
Patent GB-1358246-A (GB)
Title: Material handlding and blending system
IPC: B01F15/02
Filed: 1972-06-21
Abstract: 1358246 Mixing apparatus R J RICCIARDI 21 June 1972 [20 Aug 1971] 28960/72 Heading B1C Apparatus for blending particulate material especially plastics pellets with colour concentrating and other additives comprises a main feed hopper 12, an open coil metering screw 24, and a coaxial separately driven open coil mixing screw 50 having an inlet 32 to which additives are fed by metering devices (38, 40, Fig. 1, not shown), The screw 50 may have mixing bars 53 and is driven by a container speed motor 66 while the screw 24 is driven by a variable speed motor (86, Fig. 4, not shown). The screws are mounted on coaxial shafts 52, 68 and have threaded connections to enable them to be detached. The blending chamber 28 is mounted with quick-release clamps (31, Fig. 3, not shown).
Patent GB-1520426-A (GB)
Title: Polyester compositions
IPC: C08G73/16
Filed: 1975-07-10
Abstract: 1520426 Curable polyester compositions TEIJIN Ltd 10 July 1975 [11 July 1974 30 Sept 1974] 29120/75 Headings C3R and C3K A heat-curable solvent-soluble ester-groupcontaining polymer composition may be made by (1) either (i) reacting a high linear aromatic polyester (I) with a diaryl carbonate (II) to depolymerize it to a polyester (A), or (ii) performing (i) in the presence of (III) a compound ccntaining #2 functional groups (G), to yield a modified polyester (A<1>); and (2) either (i) mixing, or (ii) partially reacting, (A) or (A<1>) with a component (B) containing #2 reactive groups being -OH, -NH2, or -NH-. In step (1), 5-95% mole (II) are used based on moles dibasic acid contained in (I). In (A) and (A<1>), #30% moles of the terminal groups are aryl carboxylate groups. In (III), groups (G) are (a) COOH or derivative, (b) cyclic carboxylic anhydride or precursor; (c) -NH2 or -NH-; (d) -NCO or stabilized -NCO or precursor; (e) iminoacetic group or precursor; or (f) -OH. (B) is a monomeric or solvent-soluble polymeric compound, and may be formed by reacting 2 compounds of type (III) ; in (B) there may be amide, imide hydantoin, or ester bonds. Additional steps employing a component (C) being another reactive monomer or polymer containing amide, imide hydantoin, or ester linkages, may be performed between steps (1) and (2); or (C) and (A) or (A<1>) may be prepared in the same reactor simultaneously or successively in any order. The reaction(s) may be performed in solution and/or in the presence of an esterinterchange catalyst. A solution of the composition which may contain a curing catalyst, may be used as an insulating coating, e.g. for Cu wire or plates, or for impregnating glasscloth for mouldings or for laminate prepregs, or the composition may be used, powdered, as paint, hot-melt sealant, or moulding powder.
Patent GB-342709-A (GB)
Title: Improvements in or relating to fastenings for securing boxes, packing cases, skips and the like
IPC: B65D55/10
Filed: 1929-09-26
Abstract: 342,709. Box &c. fastenings. SWEENEY, R., 35, Russell Road, Whalley Range, Manchester. Sept. 26, 1929, No. 29134. [Class 44.] A cornice member 4 is pivotally and slidable mounted on opposite ends of the body 6 of the box &c. by studs 5 passing through slots in end-pieces 4a so that it can be moved clear of, or into engagement over, the edge of the lid 8. Staples 9 on the lid pass through apertures 4e in member 4 and receive a securing rod which may be removable, but is preferably permanently mounted on the box by eyes 12, the rod 11 having its ends 11a bent so that they may be engaged in the eyes 9 as shown. A wire with a seal 13 may be passed through the end 11a to secure the fastening. Member 4 may be bent up from sheet metal with the ends 4a integral with the parts 4c and secured by welding to the part 4d.
Patent GB-305557-A (GB)
Title: Improvements in and relating to a method or system for testing the relative swimmingor retrieving abilities of dogs
IPC: A01K15/02
Filed: 1927-11-02
Abstract: 305,557. Fraser, J. B., and Swinburne, H. P. Nov. 2, 1927. Dog-racing apparatus. - For testing the swimming and retrieving powers of dogs a water course is provided with a mechanical bird and means for traversing it over the water as a lure for the dogs to follow. A mast e has an arm u<2> with a hook on which an artificial duck is suspended until drawn off by a cable attached to an hook t on the duck. The cable is wound in at the opposite end of the course by a motor driven drum c arranged in a housing w into which the duck can be towed and having a door to be closed automatically by any suitable trip mechanism when engaged by the duck. A second cable s wound on a drum i inside the duck passes between guide pulleys through a hole in the back of the duck for attachment to a drum s<4> mounted on the mast so that when the duck is drawn off the hook and towed along the drum i is rotated so as to operate a crank and, through a pair of links o, o<1>, flap a pair of pivoted wings f. The drum carries a spring-pressed pawl n to drive a ratchet wheel m fast on a part j of the axle of the drum which carries the crank, the other part k of which is fast to the drum and is extended to carry a pin k<1> adapted to engage the notched sleeve, p of a shaft q adapted to be engaged by a removable crank r which is used to rewind the cable on the drum i. A switch v controls the speed of the motor c and the duck, and the drum s<4> may be rotated to control the flapping of the wings for realistic effect. A switch in the housing w may be provided for engagement by the duck so as to cut off current to the motor drum c. Sounding means to give a cry may be fitted to the duck. Several ducks may be simultaneously operated and a gun may be fired at the fall of the duck so as to similate real conditions. The duck may be traversed by electrical or mechanical means above or below the water or driven by a motor inside if controlled wirelessly.
Patent GB-1374638-A (GB)
Title: Oscillation generators
IPC: H03L7/12
Filed: 1972-06-22
Abstract: 1374638 Automatic frequency control MARCONI INSTRUMENTS Ltd 17 May 1973 [22 June 1972] 29226/72 Heading H3A A signal generator in which, the output from a VFO 1 and a reference signal 4 are applied to a mixer 3, the output from which is compared with a relatively low frequency "off-set" signal 7 in a phase comparator circuit 6, 12, is characterized in that means are provided to sweep the oscillator 1 until phase lock is achieved and for ensuring that the oscillator locks to either the sum or difference of the frequencies of the signals 4, 7 as desired with a phase quadrature relation of predetermined sense between the ouput from mixer 3 and the "offset" signal 7. The signal 7 is applied in directly to comparactor 6 and via a #/2 phase shift to comparator 12, the output from the latter starting a sweep generator 10 when synchronization is lost. The outputs from comparator 6 and the sweep generator are combined in adder 14. The polarity of the output from comparator 12 will depend on whether oscillator 1 is tuned to the sum or difference frequency of signals 4 and 7 and the circuit 10 is arranged to stop the sweep only if this output has a predetermined polarity. A threshold circuit 15 may be included so that the sweep will not be stopped if the oscillator locks to lower level harmonics of the required signal.
Patent GB-1136425-A (GB)
Title: Apparatus for knitting selvages on narrow webs
IPC: D03D35/00
Filed: 1966-06-29
Abstract: 1,136,425. Smallware looms; knitting selvedges. D. J. RIORDAN and G. C. LIBBY. 29 June, 1966 [9 July, 1965], No. 29266/66. Heading DIE. At each selvedge a smallware loom has a rigid open ended hook 42 that is oscillated about its axis by a rack 46 and also moved longitudinally by a cam-operated lever 62 so that it knits one leg F<SP>1</SP> of a weft loop inserted from its own selvedge and the loop end F just inserted from the other selvedge through previously held selvedge loops which are then cast off. The weft inserting needles 24, 26 pass through pivotable blocks 30 and are moved longitudinally by cranks 32, 36. A presser 69 is vertically reciprocated by a cam to press the leg F<SP>1</SP> into the path of the hook 42.
Patent GB-1292199-A (GB)
Title: Method and device for the production of an ion beam having a large cross-sectional area
Inventor: GUERNET GEORGES
IPC: H01J27/02
Filed: 1970-06-17
Abstract: 1292199 Ion beam apparatus; transit time tubes COMMISSARIAT A L'ENERGIE ATOMIQUE 17 June 1970 [26 June 1969] 29286/70 Heading H1D An incident ion beam is expanded into a substantially parallel beam of large cross-sectional area by double deflection in each of two planes at right-angles to each other by at least two alternating fields having different periods. The expanded beam may be used for implanting ions in the crystal lattice of a semi-conductor. A parallel ion beam emitted by a source 1 is doubly deflected in one plane by two pairs of plates 3, 4 and 5, 6, and is doubly deflected in an orthogonal plane by a pair of plates 7, 8. Plates 4 and 5 are earthed and a voltage applied to plates 3 and 6 has a period of 100 Ásec., which is much larger than the transit time of the ions, and a half-period shape of an isosceles triangle. If the transit time of the ions is not negligible compared with the period of the oscillations, the signal applied to plate 6 may be delayed to ensure that the ions are subjected to an identical deflecting voltage at each pair of plates. Plate 7 is earthed, and a voltage applied to plate 8 is sinusoidal with a period of 1 Ásec. which for optimum conditions is also the transit time of the ions. Alternatively, the deflections in the two planes may be effected successively in two separate zones, and may be effected electromagnetically.
Patent GB-159571-A (GB)
Title: Improvements in gas burners
IPC: F23D14/04
Filed: 1919-11-25
Abstract: 159,571. Bapty, S. L. Nov. 25, 1919. Gas burners, solid-flame.-In gas burners yielding a hot flame, the base of the flame is located by and the flame burns upon means carried by the burner and disposed above and beyond the burner jet nozzle, the intervening space through which the unignited stream of gas passes being unenclosed. In one form, a pilot jet nozzle d<1> arranged with its flame at right-angles to the main stream of gas serves to locate the base of the main flame. The burner nozzle b is formed with a very small aperture. In a second form, a ring of wire or like annular device, large enough to allow the stream of gas to pass through, replaces the pilot jet for locating the flame. Any number of such burners mav be mounted together and used for gas stoves &c.