baber/WOPTO huggingface dataset:
Patent GB-1049643-A (GB)
Title: A process of foaming thermoplastic polymers
IPC: C07D317/36
Filed: 1963-05-21
Abstract: The invention comprises organic 1,2-carbonates of formula <FORM:1049643/C2/1> wherein Z is a polyvalent hydrocarbon radical, M is hydrogen, alkali metal, or alkaline earth metal; and n is an integer of 1 to 4.  Preferred compounds are half esters of poly- or dibasic acids with 1,2-carbonates of alpha, beta or gamma alkane triols, which may be prepared by reacting the polycarboxylic acid anhydride with the alcohol, either by a fusion reaction or better by reaction in an inert solvent; alternatively the polycarboxylic acid itself may be used.  The radical Z may be cycloaliphatic, aliphatic, aromatic, alkaryl or aralkyl, and may be saturated, or ethylenically or acetylenically unsaturated, and interrupted by oxygen, sulphur, or nitrogen.  The residual valencies may be occupied by a large number of the usual substituents for hydrogen in hydrocarbon radicals. Examples are given for the preparation of 4-(1,3-dioxolone-2) methyl hydrogen maleate from maleic anhydride and glyceryl carbonate; homologous maleates from 1,2,6 - hexanetriol-; 1,2,5 - pentanetriol-; and 1,2,4 - butanetriol - 1,2 - carbonates; for the corresponding four itaconates; for phthalyl glyceryl 1,2-carbonate; and succinyl glyceryl 1,2-carbonate by (1) a fusion reaction, and (2) a reaction in inert solvent; esters from glyceryl 1,2-carbonate with allyl succinic anhydride, and with dodecylene succinic anhydride; for the following half esters of glyceryl 1,2-carbonate; 1-chlorosuccinate; 1,2-dichlorosuccinate; methyl mercapto succinate; S-acetylthiomalate; tetrahydrophthalate; hexahydrophthalate; endomethylene tetrahydrophthalate; 3-chloro- and 3-nitro-phthalate; and glutarate; and for 1,2,4,5-benzene-tetracarboxylic acid diester.ALSO:Thermoplastic polymers are foamed or expanded by heating the polymer which contains as part of its molecule, or is admixed with a compound containing, at least one -COOM group where M is hydrogen or alkali or alkaline earth metal, and at least one cyclic 1,2-carbonate group  <FORM:1049643/C3/1> The disclosed subject matter is identical with the disclosure of Specification 1,049,642.
Patent GB-327918-A (GB)
Title: Cinematographic apparatus with continuous travel of the film
IPC: G03B41/10
Filed: 1929-07-01
Abstract: 327,918. Soc. des Etablissements Gaumont. Dec. 28, 1928, [Convention date]. Addition to 312,177. Kinematograph apparatus. - In apparatus according to the parent Specification, the mirror carrier comprises a driving-arm c separate from .and secured to an axle a, two supports for the mirror being provided on the driving-arm, and a contact surface for the mirror being provided on the axle; a smooth roller p, Fig. 6, is interposed between the gate H and the take-up sprocket I, and the film is pressed on to it by a pressure roller q, having rubber bands on its rims, to minimize irregularity in the film feed. As shown, the axle a, of hard metal, has a flange b on which the arm c is fitted, the arm, of light metal, being secured by screws or rivets. The arm has machined ends d, e, on to which, and on to a portion of the axle, the mirror h is pressed by springs f, g. The arm is also provided with knife edges i, i and hooks k, l to carry a removable, hard steel m which contacts with the cam.
Patent GB-809116-A (GB)
Title: Improvements in or relating to electric circuits employing transistors
Inventor: WOLFENDALE ERIC
IPC: H03K3/335
Filed: 1955-06-27
Abstract: 809,116. Transistor circuits. MULLARD RADIO VALVE CO., Ltd. June 29, 1956 [June 27, 1955], No. 20220/56. Divided out of and addition to 809,115. Class 40 (6). In a circuit similar to that described in the parent Specification, in which a load Rc, Fig. 5, is arranged in series with the emittercollector path of a transistor operating in the " punch-through " mode, zero or reverse initial bias is provided in the baseemitter circuit including an impedance Rb which provides a D.C. path. The earthy end of the resistor Rb may be returned to a positive source, Fig. 6 (not shown). Provided the supply potential is sufficiently great the collector. potential reaches the breakdown voltage and relaxation oscillations occur a sawtooth voltage appearing at the collector with a pulsed emitter current. By employing a lower load the circuit may operate as a monostable bi-stable circuit. Other circuits, Figs. 7, 8 and 9 (Comp. Specification), are also described, but are similar to those described in the parent Specification with the added base resistor Rb.
Patent GB-994804-A (GB)
Title: Intaglio rotary printing machine
IPC: B41F13/30
Filed: 1962-05-28
Abstract: 994,804. Rotary printing machines. A. WINDMOLLER, and M. GONMERICH, [trading as WINDMOLLER & HOLSCHER]. May 28, 1962 [June 26, 1961], No. 20437/62. Heading B6C. An intaglio rotary printing machine having a printing cylinder 46 adapted to be tripped so that it is moved out of engagement with an adjustable impression cylinder 52, is characterized in that the bearings 47 and 48 of the cylinder 46 are held by bearing supports B and A respectively in openings 3 and 4 in the side frames 1 and 2 of the machine, said cylinder 46 being removable axially from the machine when in its tripped position. The bearing support A comprises two plate elements 7 and 8 held apart by spacer bolts 9-12 and is movably mounted on bars 21, 24 and 25 fixed to the upper and lower walls of the opening 4. Bearing blocks 14-17 are mounted on the spacer bolts so that they project laterally from the edges of the plate elements and bear on the side walls of the opening 4, blocks 14 and 15 being concentrically mounted on the bolts 9 and 10, and blocks 16, and 17 being eccentrically mounted on the bolts 11 and 12 so that the blocks 16 and 17 can be set flush with the opening 4. The support B is similarly constructed. The flange bearing 47 is mounted in a bore in the support B which is sufficiently large to permit the axial withdrawal of the cylinder 46. Tripping.-The means for moving the supports A and B upwards or downwards comprises pins 26 and 27 which are coupled by members 28 and 29 to eccentrics 32 and 33 mounted on a common shaft 34. The eccentrics are adapted to be rotated through a linkage 41, 42 by a pneumatic piston and cylinder arrangement 43, 44. The cylinder 46 is in its operating position in co-operation with the cylinder 52 when the eccentrics 32, 33 are in the upper dead-centre position. The working pressure may be adjusted by means of screwthreaded spindles 53 and 54 acting on the bearings of the impression cylinder. The cylinder 46 may be moved laterally by a member 49 to effect lateral register adjustment. The tripping of the printing cylinder 46 may be effected mechanically, hydraulically, or pneumatically, preferably electro-pneumatically by means of press-buttons and an electromagnetic valve.
Patent GB-681761-A (GB)
Title: Means for adjustable mounting a plurality of louvre blades in a framework
Inventor: FERRARI FRANCIS JAMES
IPC: F24F13/15
Filed: 1950-08-17
Abstract: 681,761. Ventilation. HALL & CO., Ltd., M. Aug. 10, 1951 [Aug. 17, 1950], No. 20467/50. Class 137 Louvre blades, mounted in a framework which is secured to a ventilating duct or incorporated in a wall or window, are each kept in their position of adjustment by the friction between the ends of the louvre blade and inherently resilient mullion bars in which the blades are pivoted. The frame A, as shown, is provided with four mullion bars 1 to accommodate three sets of louvre blades L', L<SP>2</SP>, L<SP>3</SP>. The bars 1 may be V or U-section and are formed of spring metal strip so that they bear frictionally on the ends of the blades, the frictional area being increased, if desired, by interposed washers 8. The blades are provided with spigots 5 for engaging in holes drilled in the sides of the mullion bars. The bars 1 may each be provided with a locking flange 7, and, for locating the intermediate bars 1, bars 10 are housed within them, the bars 10 being secured to the frame A. In Fig. 5, a gauze or like screen is arranged between louvres L constructed as described above, and a set of vertical blades 12 arranged to be swung in unison about spindles 13 by a coupling bar 15.
Patent GB-848499-A (GB)
Title: Fishing thermometer
IPC: G01K5/02
Filed: 1959-06-15
Abstract: 848,499. Thermometers. CROMTRYCK A. B. June 15, 1959 [July 2, 1958], No. 20481/59. Class 97(3). A device for measuring water temperature at any predetermined depth in a fishing ground comprises an open ended tube 1, a thermometer 3 mounted in the tube and a check valve 5 at the lower end of the tube so that as the device is lowered, water enters and passes through the tube 1, but when it is pulled up the water is retained in the tube. The check valve 5 is formed as a diaphragm either fastened as shown to the centre of a rod 6 extending across the end of tube 1, or having part of its edge fastened to the inner radial surface of a flange 4.
Patent GB-576848-A (GB)
Title: Improvements in or relating to the production of aminoalkyl iodoaryl ketones
Filed: 1943-12-08
Abstract: Aminoalkyl iodoaryl ketones, having anti-tubercle activity, are obtained by treating a monohalogenated alkyl iodoaryl ketone of general formula R.CO.X, wherein R represents an iodinated aryl group which may contain one or more additional nuclear iodine and/or alkyl substituents and X represents a monohalogenated alkyl group, with ammonia or with a primary or secondary amine, e.g. by heating, preferably in an inert solvent such as a liquid hydrocarbon, e.g. benzene or toluene, if necessary under pressure. The iodoaryl ketone may be an omega-monohalogenated iodo-acetophenone, -propiophenone, -butyrophenone, or higher homologue thereof.  The primary or secondary amines may contain normal, iso, secondary or tertiary alkyl substituents, specified amines being methylamine, ethylamine, iso-propylamine, n-propylamine, iso-butylamine, n-butylamine, iso-amylamine, n-decylamine, diethylamine, di-iso-butylamine, di-dodecylamine, tert.-butylamine, aniline, N-methyl aniline, N-ethyl aniline, the isomeric toluidines, benzylamine and diphenylamine.  The ketones of the general formula R.CO.X are obtainable (a) by treating an iodobenzene, e.g. a di-iodobenzene such as m-di-iodobenzene, a tri-iodobenzene or a mono- or di-iodotoluene, with a monohalogenated alkane monocarboxylic halide, e.g. chloracetyl chloride, bromacetyl bromide, a - or b -chloropropionyl chloride, a -, b - or g -chlorobutyryl chloride, a -bromobutyryl bromide or a -chloro-n-valeryl chloride in presence of a Friedel-Crafts catalyst, e.g. aluminium chloride or ferric chloride; (6) by monohalogenating the alkyl group in an alkyl iodoarylketone, e.g. brominating 4-iodoacetophenone in glacial acetic acid solution.  In examples, chloracetyl chloride in carbon bisulphide is added to a cooled solution of iodobenzene in carbon bisulphide, containing anhydrous aluminium chloride, and the reaction-mixture is ultimately refluxed to eliminate hydrogen chloride and treated with iced dilute hydrochloric acid to isolate omega-chloro-p-iodoacetophenone, which is heated with diethylamine in benzene and the product is ground with N-hydrochloric acid to isolate the hydrochloride of omega - diethylamino - p - iodoacetophenone; (2) omega-bromo-p-iodoacetophenone is used instead of the corresponding chloro-derivative.
Patent GB-877354-A (GB)
Title: An automotive vehicle windscreen wiper actuating mechanism
IPC: B60S1/16
Filed: 1959-06-16
Abstract: 877,354. Windscreen wiper actuator systems. SWF-SPEZIALFABRIK FUR AUTOZUBEHOR G. RAU G.m.b.H. June 16, 1959 [July 12, 1958]; No. 20556/59. Class 138(1). In a windscreen wiper actuator system, including mechanism for causing the wipers to move to parking positions beyond the wiping area on stopping the wiper motor, there is fitted in an aperture in a driving disc 4 secured to the drive shaft 3 a rotatable disc 40 secured eccentrically to a bolt 8 surrounded by a bush 7 forming a crank pin to which is attached a drive link (not shown) for actuating one of a pair of wipers, the other being actuated by a drive link attached to a second crank pin 12 secured to a plate 110 in which is fitted a further eccentric disc 41 secured to the bolt 8. The wipers are moved to the parking positions by increasing the crank lengths, viz. the distances between the drive shaft 3 and the crank pins 7, 12. This is effected by withdrawing a pin 2 by means actuated by the operation of switching off the driving motor, to release a catch lever 1 which is then pulled by a tension spring so that a boss 24 thereon engages a shoulder 21 on a cam 22 to lock the latter to the drive plate. Thus as the motor runs down a gear wheel 31 secured to the cam 22 rotates, and through a gear wheel 30, turns the eccentric discs 40, 41 through 180 degrees. The eccentricity of the disc 41 is twice that of the disc 40, so that the rotation of the discs 40, 41 increases by equal amounts the distances of the crank pins 7, 12 from the shaft 3. Alternatively the mechanism may be employed for parking a single wiper connected to the crank pin 12.
Patent GB-868340-A (GB)
Title: Improved clothes washer machine
IPC: D06F34/10
Filed: 1959-06-16
Abstract: 868,340. Washing-machines. GENERAL MOTORS CORPORATION. June 16, 1959 [June 27, 1958], No. 20594/59. Class 138 (2). [Also in Groups XIII and XXXVII] A washing and spin-drying machine having a reciprocable agitator and a spinnable tub, both driven by a single induction motor, has means for controlling the rates of agitation and spin. The agitator control-means is operative, when the motor is driving the agitator, to adjust the impedance of the motor supply leads to a preselected value. Agitator control (Fig. 2).-As the motor 42 accelerates, a centrifugal device 44 operates to cut out a start winding 46 and energize a coil 64. Coil 64 operates switches 68, 70 to connect the motor to the output contacts 76, 78 of a variable inductor 38. If the motor speed is reduced (e.g. due to blockage in the tub) the centrifugal device 44 re-establishes the circuit shown in Fig. 2 to increase the motor torque until its speed increases again. In this example the motor is reversed for spin drying. Spin control (Fig. 5).-For high-speed spin a switch 150 is moved on to a contact H to connect the motor 126 to the supply L1, L2. For low-speed spin the motor is alternately energized and de-energized by means of a hot wire switch 136 comprising a resistor 170, hot wire 168 and two switch blades 164, 166 on a spring support 186. As the wire 168 becomes hot and therefore longer the support 186 moves the blade 164 to cut out the resistor 170 and thereby reduce the motor current. Shortly afterwards the wire 168 becomes even longer and the support 186 moves the blade 166 to disconnect the motor. The motor slows down and the hot wire contracts until the blade 166 recloses the circuit to re-energize the motor and repeat the process. The resistor 170 may be variable and determines the speed at which the motor current is interrupted and therefore the average motor speed for low-speed spin-drying. In Fig. 9 (not shown) the two control circuits of Figs. 2 and 5 are combined.
Patent GB-298721-A (GB)
Title: Improvements in and apparatus for the wet treatment of textile threads
IPC: D01D10/04
Filed: 1927-08-05
Abstract: 298,721. Schoenfeld, M. Aug. 5, 1927. Passing fluids through materials on perforated drums; material wound on re@els or drums, treating with liquids.-Artificial silk or other threads are wound on a perforated drum through the surface of which longitudinal members mayin turn be projected as the drum rotates, so as partially to lift the, threads from the drum-surface and thus to permit penetration of the liquid. The threads are first wound on the drum 1 with the member., 2 projected radially outwards, after which the members 2 are released. The drum 1 is them passed on to a rotarydrum 5 by which it is frictionally rotated, each member 2 as it comes to the uppermost position being, by its contact with the drum 5, pressed outwardly to separate the threads from contact with the drum 1 at that point. Or the drum 1 may be positively rotated, the members 2 contacting in turn at the top with a stationary internal arm. The liquid may be sprayed on from a pipe 14, or the drum may dip into a liquid bath, in which case. the, members 2 are moved outwardly in their lowest position. Specification 296,634, [Class 120 (iiiJ, Yarns &c.], is referred to.
Patent GB-690462-A (GB)
Title: New hydroxy and alkoxy derivatives of phenylbenzamidines and a process for their preparation
Filed: 1951-09-03
Abstract: The invention comprises amidines of the general formula <FORM:0690462/IV (b)/1> where R1 is hydrogen or alkyl R2 is alkyl or R1 and R2 are the two extremities of a cyclic radical, Y, Z and Z2 can be hydrogen, hydroxyl or alkoxyl but are not all hydrogen and their preparation by reacting an imino chloride of the formula <FORM:0690462/IV (b)/2> with an amine NHR1R2, preferably in the presence of a tertiary organic base or in the case where R1 is hydrogen by reacting an imino chloride of the formula <FORM:0690462/IV (b)/3> where R is an alkyl group with an amine of the formula <FORM:0690462/IV (b)/4> which gives the desired product by virtue of the tautomerism of the amidine group.  In examples: (1) p-anisanilide-iminochloride is reacted with methylamine to give N-monomethyl - N1 - phenyl - p - anisamidine; (2) p-benzanisidide-iminochloride is reacted with monomethylamine to give N-monomethyl-N1-paramethoxyphenyl benzamidine; (3) p-benzanisidide-iminochloride is reacted with morpholine to give N-diethyleneoxy-N1-p-methoxyphenyl benzamidine; (4) p-benzanisidide-iminochloride is reacted with diethylamine to give N - diethyl - N1 - p - methoxyphenyl benzamidine; (5) p : p1-dimethoxy benzanilide-iminochloride is reacted with methylamine to give N - monomethyl - N1 - p - methoxyphenyl anisamidine; (6) benzphenetidide-iminochloride is reacted with methylamine to give N-monomethyl - N1 - p - ethoxyphenyl benzamidine, and (7) N-methylbenzamide-imino-chloride is reacted with neratrylamine to give N-monomethyl - N1 - 3 : 4 - dimethoxyphenyl - benzamidine.
Patent GB-413125-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/56
Filed: 1933-07-24
Abstract: 413,125. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) July 24, 1933, No. 20820. Convention date, July 22, 1932. [Class 39 (i).] A gas or vapour filled device comprises an envelope containing a cylindrical control electrode surrounding the whole of the discharge path between anode and cathode, and a "de-ionizing" member having one or more openings for the passage of current is arranged inside the control electrode and extends across the discharge path. In one form, Fig. 1, a metal cylinder 2, which may be perforated, forms the control electrode and surrounds the path between a graphite anode 4 and an indirectly-heated cathode 11. The "de-ionizing" member 3 is a graphite disc with one or more apertures, and may be adjustable in position. The control electrode 2 is supported from pinches 5, 6 by struts 13, 131, 14, 141 secured to clips 7, 10 which respectively form a bayonet joint with a glass stud 15 and are screwed tight at 10 round a glass stud 9. The member 3 may be a cylinder and may be recessed so that transverse walls extend radially outwards from the cylinder 2. The cylinder 2 may be roughened internally and may consist, together with the member 3, of nickel with a coating of graphite or chromic oxide. The filling may consist of a rare gas, such as argon, or a mixture of rare gases, such as argon and helium, or of mercury, with or without either of these gases, at a pressure above 1 mm. or between 1 mm. and 0.001 mm. Reference has been directed by the Comptroller to Specification 396,998.
Patent GB-336560-A (GB)
Title: Improvements in and relating to friction clutches
IPC: F16H61/02
Filed: 1929-07-06
Abstract: 336,560. Maina, J., and Davidson's Patents, Ltd. July 6, 1929. Clutches, friction and ratchet; clutches allowing slip.-In power-transmission mechanism comprising a clutch between a driving or driven shaft and a member permanently geared thereto by helically-toothed wheels, wherein the axial reaction of the gearing automatically engages and disengages friction elements associated with the fast-running shaft or member, there is provided a spring or other axial force which either must be overcome before the clutch can engage or disengage, or acts to press the surfaces into light initial engagement. Fig. 1 shows a modification of the clutch shown in Fig. 7 of Specification 308,451, wherein a light compression spring 50 is interposed between the clutch members 30, 35, rotation of the driving-shaft 31 as shown by the arrow merely turning the member 30 idly by the toothed wheels 32, 33, 37, 38, until, due to the drag of vanes 51 in oil or other means, the reaction of the helical wheels 37, 38 overcomes the spring to clutch the shafts 31, 36 solid. If the spring &c. acts reversely, the clutch disengages on excessive torque, the vanes &c. being unnecessary. In a modification, a motor-vehicle engine flywheel b is formed with a drum a having a clutch surface h and internal helical teeth c, with which mesh planets d on a carrier e on the gearbox shaft #, the sun-wheel g being formed on a loose sleeve j. A clutch plate i, slidable on the sleeve j, is thrust against the surface h by a presser-plate k and springs m with sufficient force to provide for engine-braking, this force being augmented on forward drive by levers n actuated by movement of the sleeve j to the right due to the helical-tooth reaction. On light load, the plate k can be withdrawn by connections (not shown) to the usual pedal. In a further modification, Fig. 3 (not shown), the plate k is normally held out of action by springs, but is engaged by cam-levers so shaped as to thrust it into action on movement of the sleeve j to the right or left, i.e., when the engine drives or is overrun.