baber/WOPTO huggingface dataset:
Patent GB-274249-A (GB)
Title: Improvements relating to telephone jacks and jack switches particularly for use in wireless signalling apparatus and telephone switching
IPC: H01H19/62
Filed: 1926-06-04
Abstract: 274,249. General Radio Co., Ltd., and Walton, G. W. June 4, 1926 Plug and two-part electric couplings, combined with electric switches. A jack for use in telephone systems or in wireless signalling apparatus comprises two or more contact strips a, b, e, concentrically mounted upon an insulating plate g which carries a plug-receiving bush o. The plug forces outwards a straight strip a, which co-operates with a lateral projection on a strip b through an insulating block f to force the projection into contact with a similar projection on a strip e. A metal reinforcing plate c may be fixed to the plate g by eyelets k, one of which also clamps a soldering tag q, for connecting through the plate c to the bush o. The contact. strips are fixed in holes j in the plate g, six of which are shown; the remaining three may be used to carry three more strips similarly arranged, or several straight strips may be used having their plug-contacting bends v, Fig. 3, at different heights. The strips carry soldering tags u. The plate c has clearance holes n so that the contact strips are insulated. The bush o has a hexagonal head fitting into a hole in the plate g and a screwed cylindrical extensions which passes through the reinforcing plate and is used for mounting the jack on a panel. Screw terminals may be mounted in the eyelet holes of the contact-strips, which may be held from rotation by tongues or serrations thereon engaging holes in the plate g.
Patent GB-583164-A (GB)
Title: Improvements in and relating to the production of sodium and potassium salts of aminomethionic acid
IPC: C07C309/14
Filed: 1941-11-07
Abstract: The sodium or potassium salt of aminomethionic acid is precipitated by passing sulphur dioxide into the reaction products obtained by reacting sodium or potassium bisulphite with sodium or potassium cyanide in the presence of water.  After removal of the precipitated aminomethionate, the residual liquor may be used as a source of bisulphite after addition of sulphur dioxide.  The mono sodium or potassium salt is obtained when the pH value of the solution is 3 or less and the disodium or potassium salt when the pH value is between 3 and 7.  Increased yields of the disodium or potassium salt are obtained by the addition of caustic soda or potash.  In examples, sodium cyanide is reacted with a solution of sodium metabisulphite and the sodium aminomethionate precipitated by passing in sulphur dioxide.
Patent GB-478989-A (GB)
Title: Improvements in and relating to colour forming developers and processes of colour development
IPC: G03C7/34
Filed: 1936-04-23
Abstract: 2 - (o - Hydroxystyryl) - pyridine is prepared by heating a mixture of equimolecular quantities of a -picoline and salicylaldehyde with a half molecular quantity of zinc chloride at 150--155 DEG  C., for two and a half hours.  2 - (o - Hydroxystyryl) - thiazoline, 1 - (o-hydroxybenzal) - benzthiazole, and 3-phenyl-5 - (o - hydroxybenzal) - 2 : 4 - thiazolidione are similarly prepared.
Patent GB-254291-A (GB)
Title: Improvements in or relating to electric safety lamps for miners
IPC: F21V25/06
Filed: 1926-06-07
Abstract: 254,291. Daloz, J. G. June 24, 1925, [Convention date]. Cut-outs. - In lamps for use in mines &c. and adapted to contain a gas under pressure, the release of which upon fracture of the lamp class causes the electric circuit of the lamp bulb to be broken, the cutout 3 comprises a casing 8, Fig. 2, closed at its inner end by a flexible diaphragm 9 which is normally pressed inwards by the compressed air against the action of a spring 10. The diaphragm supports a rod 12 having a perforation for the passage of a delicate wire interposed in the electric circuit. This wire breaks under the force of the spring when the gas pressure is released, thereby breaking the circuit. The cut-out is fitted in a casing 2 adapted to be inflated by a valve 4.
Patent GB-674286-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/10
Filed: 1950-06-09
Abstract: 674,286. Photographic shutters. KODAK, Ltd. June 9, 1950 [June 10, 1949; June 10, 1949], No. 14496/50. Class 98 (i). The shutter comprises a member having an exposure slot and pivotally mounted on an apertured support across which it is moved by a pivotally-mounted trigger to effect an exposure, the trigger being connected by a spring to a toggle mechanism composed of a pair of links pivoted together and pivoted at their free ends to the exposure member and support respectively whereby movement of the trigger tensions the spring to enable it to move the toggle links and effect an exposure. As shown in Fig. 1, the trigger is pivoted at 18 and bears one end of a hairpin spring 14, the other end of which is secured to the joint 8 of a toggle comprising a link 9 pivoted at 10 and a link 7 connected to a pivoted shutter blade 3, so that upon each movement of the trigger in one direction, effecting movement of the joint 8 from against one stop, as to the other stop, as 12, the reniform slot 4 in the blade 3 moves back and forth across the exposure aperture 2. In an alternative form, Fig. 4, the shutter blade moves in one direction only to effect each exposure and the trigger has a spring blade 83 with an upwardlybent nose which engages the bent-over tip of an extension 80 on the pivoted link 62 of the toggle whose movement is limited by stops 76, 77, movement of the trigger moving the blade 83 clear of the extension 80 and thus permitting movement of the toggle to effect an exposure, the blade 83 arresting the toggle again on completion of the exposure, so preventing rebound of the shutter blade. A manually-rotatable catch 93 is provided so that bulb exposures may be made when this is turned 90 degrees from the Fig. 4 position when one of the lugs 94, 95 on the shutter blade engage it on operating the trigger, the parts returning to their initial position on releasing the trigger.
Patent GB-1172197-A (GB)
Title: Method of and means for Keeping a Welding Unit Stationary with Respect to the Work
Inventor: PULS JUERGEN SIEGFRIED
IPC: B23K9/028
Filed: 1968-03-27
Abstract: 1,172,197. Welding by fusion. ESAB Ltd. 27 March, 1968 [28 March, 1967], No. 14685/68. Heading B3R. In welding tubes to tube plates the welding unit is kept stationary with respect to the work by the use of a plate of magnetic material covering part of the surface of the tube plate, the magnetic material being attached to the work, and the welding unit being attached to the plate of magnetic material by a permanent- or electro-magnet. The plate 1 of oblong shape has an expansible plug 3 attached thereto adjacent one end and a further similar plug is mounted on a slide 11 adjacent the other end in such a way that by moving the slide the distance between the plugs is altered. Each plug has three radially displaceable wedges 4 which can be thrust outwards, by a screw 8 co-operating with a conical sleeve 7, against the action of an annular spring 9, into engagement with an inner wall of a tube end inserted in the tube plate. The spacing of the magnetic plate from the tube plate, which may be austenitic stainless steel, is determined by a flange, e.g. flange 21, on each plug, but separate spacers can be used.
Patent GB-844907-A (GB)
Title: Improvements in or relating to pulse generating circuits
Inventor: MORRIS IAN GLYNN
IPC: G11B20/16
Filed: 1958-05-08
Abstract: 844,907. Transistor blocking oscillator and amplifier circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. April 17, 1959 [May 8, 1958], No. 14740/58. Class 40(6). A circuit for generating and distributing pulses to a number of outlets comprises a blocking oscillator controlled by a series of trigger pulses the pulse output from which is applied in parallel to the input of a number of pre-amplifying stages each of which feeds in parallel the inputs to associated final amplifying stages from which the pulses are applied to the required outlet. The Figure shows the application to distributing clock pulses derived from a series of distorted clock pulses applied to the lead IL. The input pulses are applied via transistor emitter follower stage TX1 to the amplifier stage TX2 connected in common emitter configuration. The output from TX2 is applied via a differentiating circuit to trigger blocking oscillator TX3 at each positive peak of the output signal from the differentiating circuit. The blocking oscillator in addition to positive feedback between collector and emitter has negative feedback produced by a series resistor R2 in the emitter circuit. The diode D1 shunts the emitter coil so as to ensure a clean trailing edge to the generated pulse. The output from the blocking oscillator is connected via twisted pairs of leads to the input circuits of a number of pre-amplifier stages TX4 connected in parallel, the output from which is applied via a coupling transformer to the input circuit connected in parallel of final amplifier stages TX5 from which the output pulse is applied via lead OL to the requisite points of the system. Diode D3 functions as diode D1 and diodes D2, D4 eliminates ringing on the trailing edge of the input pulse to stages TX4, TX5. The amplitude of the output pulse at lead OL is limited by biased diode D5.
Patent GB-457113-A (GB)
Title: Improvements in or relating to connector pins for electrical plug and socket connections
IPC: H01R13/05
Filed: 1935-05-20
Abstract: 457,113. Making electric couplings. COOK, C. R., Chesworth, Horsham, Sussex. May 20, 1935, No. 14754. [Classes 83 (ii) and 83 (iv)] [See also Group XXXVI] Forging.-Relates to connector pins for plug-and-socket connections of the type wherein the pin comprises two resilient prongs connected at one end by an eye or loop, for instance, as described in Specification 403,448, [Group XXXVI], and comprises a method of forming a supporting lug or extension on the external face of the eye or loop by displacing outwardly by means of a die, a relatively small portion of the material of the eye, while retaining the major portion undeformed. As shown in Figs. 1 and 3, the connector pin has resilient prongs 1 connected by an eye 2 with lugs 3 extending from each side thereof. The lugs are formed by supporting the pin on a mandrel 4 passing through the eye, and pressing a die 5 downwards. The die has a recess 6 to accommodate the major part of the top of the eye, and two cutting members 7 terminating short of the face of the die. When the die is pressed down, the members 7 displace some of the material downwardly and outwardly into the recesses 9 to form the lugs 3.
Patent GB-275373-A (GB)
Title: Process for dyeing cellulose esters and ethers
IPC: D06P3/34
Filed: 1926-06-11
Abstract: 275,373. British Dyestuffs Corporation, Ltd., Horsfall, R. S., Lawrie, L. G., and Hill, J. June 11, 1926. Azo dyes for cellulose esters and ethers are prepared by coupling diazotized sulphonarylides of amines of the benzene or naphthalene series with amines of the benzene or naphthalene series or their substitution products. In examples, acetyl cellulose is dyed in orange or yellow shades by means of the dyestuffs m-aminobenzenesulphonanilide -> a-naphthylamine, m-aminobenzene-sulphon-m-nitranilide ->. cresidine, and 1-naphthylamine-5-sulphonanilide -> cresidine or dimethylaniline. Sulphonarylides of the kind described above may be made by condensing a nitroarylsulphonyl chloride with an aromatic amine and reducing the product. Thus, 1-naphthylamine-5-sulphonanilide is obtained by reducing the condensation product of 1-nitronaphtbalene-5-sulphonyl chloride and aniline. m-Aminobenzene-sulphonm-nitranilide is obtained by condensing acetanilide-m-sulphonyl chloride with m-nitraniline and hydrolysing the product.
Patent GB-710949-A (GB)
Title: Improvements in or relating to water tube boilers
IPC: F22B37/22
Filed: 1951-06-21
Abstract: 710,949. Hot-water boilers. PAYNE, S. July 7, 1952 [June 21,. 1951], No. 14757/51. Class 64(1) In a hot-water boiler comprising parallel horizontal water tubes arranged in layers and having above that top layer a flue space extending horizontally the length of the boiler, staggered vertical baffle plates 1. 2 of less width than the flue space are arranged across the latter, to give the flue gases a sinuous path. The baffle plates are slidably mounted in slots in transverse bars 3, 4, and rest on the top layer of tubes. The slotted bars have lateral flanges to support fireclay tiles forming the roof of the flue space. A pair of spaced angle-irons may replace each slotted bar.
Patent GB-475813-A (GB)
Title: Compounds of the anthraquinone series and their manufacture
Filed: 1936-05-25
Abstract: Tetrahalogenanthraquinones are prepared by halogenating 1 : 5-, 1 : 8-, 2 : 6-, or 2.7-diaminoanthraquinones, diazotizing, and eliminating the diazonium groups.  The halogenation may be effected in hydrochloric or sulphuric acid, e.g. by elementary or nascent chlorine.  In examples, the following compounds are diazotized and boiled with alcohol and cuprous oxide: (1) 1.3.5.7-tetrabromo (or tetrachloro)-2 : 6-diaminoanthraquinone; (2) 2.4.5.7-tetrachloro-1.8-diaminoanthraquinone; (3) 2.4.6.8-tetrachloro (or tetrabromo) - 1 : 5 - diaminoanthraquinone; (4) 1.3.6.8 - tetrachloro (or tetrabromo) - 2.7 - diaminoanthraquinone; (5) 1.5-dichloro - 2.6 - diamino - 3.7 - dibromoanthraquinones.
Patent GB-637771-A (GB)
Title: Improvements in or relating to elastic-fluid turbines
IPC: F01D9/06
Filed: 1948-06-01
Abstract: 637,771. Steam turbines. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. June 1, 1948, No. 14795. Convention date, June 2, 1947. [Class 110(iii)] Segmental nozzle boxes 22, Fig. 1. are formed with tubular inlet necks 33 and are each secured to the casing by a conical collar 46 of which one end is welded at 47 to the neck 33 and the other end is welded at 48 to the casing. In the structure of Fig. 1 there are five segments with parallel necks. Two are secured to one casing half and three to the other. The segments in each group have interengaging radial tongues and grooves and are positioned in the casing by circumferential tongues and grooves 50. Fig. 3 shows a structure with six segments carried by an inner casing 58. The tubular necks 33 are secured to the inner casing by collars 46 and have pistonlike ends, fitted with packing rings 74, which lie in bushes 73 in tubular continuations 68 welded in place in the outer casing 56. The nozzle boxes have peripheral tongue and groove connections 50 with'the inner casing and radial connections 53 between the boxes of each set of three. Fig. 6 shows a form of a continuation 68 having a bell skirt 76b welded to the outer casing at 77a. The skirt may be replaced by collar similarly situated and welded to the continuation.
Patent GB-110367-A (GB)
Title: Speed Indicator.
Inventor: HUBER ALBERT
IPC: G01P3/36
Filed: 1917-10-12
Abstract: 110,367. Huber, A., and Muller, E. Oct. 13, 1916, [Convention date]. Fluid speed indicators of the fluiddrag type are given an even scale by providing a series of springs brought successively into action, and means are provided for equalizing the friction on the indicator spindle due to any departure from the vertical. A pin 14 on a sleeve 9, which bears the first spring 10 and is secured to the indicator spindle 6, is adapted to engage a second spring-controlled sleeve 15 loose on the spindle 6. A third loose spring-controlled sleeve 23 is provided, a shoulder 22 thereon being engaged by a pin 21 on the sleeve 15. The rotating container is divided by a partition and a disk, secured to a sleeve, is situated on each side thereof. To equalize the friction due to departure from the vertical, the bush of the sleeve is of such dimensions that the friction in the vertical position caused by the pressure of the bush against the bearing due to the mercury which fills the container is equal to that of the spindle 6 in its bearing in the horizontal position. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification wherein the disks are replaced by an inverted cup and this member 33 may be shaped as shown in Fig. 4 (cancelled) and provided with angular slots 35 and vanes 34, Fig. 5 (cancelled), so that, as the speed increases and the liquid assumes the position shown in dotted lines, less surface is exposed to the fluid drag, thus producing the same effect as the spring relays which are dispensed with. The vanes may be replaced by ribs, grooves &c. Transmission mechanism. - To admit of the spindle 6 assuming a vertical position whatever the inclination of the driving shaft may be, the shaft is provided with a cupped bearing 26, Fig. 6 (cancelled), in which rests a ball 27 secured to the container 25. Connexion between the parts is effected by balls 30 engaging grooves 29 therein. This subject-matter does not appear in the Specification as accepted.
Patent GB-159227-A (GB)
Title: Improvements in or relating to valve gear for internal combustion engines having rotating cylinders
IPC: F02F1/24
Filed: 1917-10-12
Abstract: 159,227. Clerget, Blin, et Cie. April 4, 1917, [Convention date]. Valves; valve-gear.-In a rotating radialcylinder engine having a single inlet valve c and a pair of exhaust valves, one of which is shown at b in Fig. 1, in the cylinder head, the stems of the valves are guided in the ends of rocking levers f, d which turn about axes located in a plane containing the seats of the valves. The upper face of the valve c engages a cup-shaped recess m in the end of the balanced lever f. The lever is actuated through a rod having a ball end, as at e, and its movement is limited by a stop x which engages a detachable section j of the inlet pipe in which the lever is mounted. The two exhaust valves are actuated by a common lever d which in its closing movement shuts against a stop u. The valves are provided with closing-springs o. The arm d<1> of the lever d is connected to its actuating-rod by a ball-andsocket joint the cap x<1> of which is adjustable.
Patent GB-673374-A (GB)
Title: Improvements in or relating to hydraulic power units
IPC: B64C13/24
Filed: 1949-06-02
Abstract: 673,374. Fluid-pressure servomotor-control systems. HOBSON, Ltd., H. M., and MOTT, L. F. May 24, 1950 [June 2, 1949], No. 14843/49. Class 135. In a hydraulic servomotor system of the kind in which an output member 13 is normally operated by a hydraulic actuator, such as the jack 1, under the control of a manually operated input member 19 linked to a control device such as the valve 18 or a variable stroke hydraulic pump. whereby the position of the output member is determined by the position of the input member, a normally inoperative emergency hydraulic or other actuating gear, such as the screw jack 12, is provided in association with the actuator and manually operable mechanism disables the normally operative actuator in case of failure and renders the emergency actuating gear effective to position the output member 13 under the control of the input member 19. The system shown is applied to the actuation of an aircraft control surface and is generally similar to that shown in Fig. 1 of Specification 673,373. The hydraulic jack 1 and the screw jack 12 have parts 2, 15 respectively connected to the aircraft structure and movable parts 5, 11 connected to the output member 13 through a differential lever 9, and their respective control valves 18, 25 are connected to the input member 19 through a differential lever 21. The valve 25 is normally locked in the neutral position by a spring- loaded locking plunger 37 engaging a groove 36 and holding a trip member 30 pivoted on the valve casing 39 against a manually-operated sliding catch 41. The latter is normally maintained in its latching position by a spring loaded plunger 42 engaging a groove 44. The trip member 30 holds open a valve 28 in the fluid pressure conduit 27 to the valve 18. When closed on release of the trip member 30, the valve 28 also cuts off the hydraulic supply to a jamming roller type of lock 51 which thereupon engages to prevent the screw jack 12 driving the jack 1 in reverse. On release of the catch 41 by an emergency lever in the cockpit, the trip member 30 and the locking plunger 37 are released and a plunger 45 closes contacts 46 in the circuit of an electric motor driving a stand-by pump supplying through the control valve 25 a hydraulic motor 26 driving the screw jack 12. The screw jack may be driven by an electric motor as described in Specification 673,373. The screw jack may be associated with duplicated main actuators as described in Specification 673,373. Specification 673,371 also is referred to.
Patent GB-588238-A (GB)
Title: Improvements in or relating to apparatus for controlling electronic streams in thermionic valves or the like
IPC: H01J19/38
Filed: 1941-11-19
Abstract: 588,238. Thermionic valves ; velocitymodulated tubes. REITH, A. M., and WRIGHT, C. S. Nov. 19, 1941-, No. 14851. [Class 39 (i)] A grid for controlling the electron stream in thermionic valves, particularly for insertion in the aperture of the resonators in velocity modulation devices, is formed from a tape 2, half of which is crinkled and the other half plane; the tape is doubled and then wound into a coil so as to assume an open-work formation. The coil is made of a size to fit the aperture of the resonator, in which it is soldered, preferably by being plated previously with the soldering metal. The tape may be copper, and the soldering metal silver or gold. Alternatively, the tape may be nickel or molybdenum, in which case a copper or platinum solder may be used.
Patent GB-637775-A (GB)
Title: Improvements in screens
IPC: A47G5/04
Filed: 1948-06-02
Abstract: 637,775. Firescreens. WILSON, A., (legal representative of WILSON, C. H.). June 2, 1948, No. 14923. [Class 126] [Also in Group XIV] A fireplace screen comprises a rectangular sheet A of material sufficiently stiff to be self-supporting secured to a horizontal base H the bottom edge having a forwardly convex curvature which diminishes towards the top of the screen. A straight or slightly curved cross bar C is secured to the top of the screen. In modifications upright bracing members are secured to the side edges, or the screen is made of pre-shaped plastic material secured to a base member in which notches are cut to receive the legs of a gratebottom, the horizontal section at the base being polygonal,
Patent GB-964260-A (GB)
Title: Phenolic resin intermediates and cured products obtained from them
IPC: C08G59/08
Filed: 1961-04-25
Abstract: Resin intermediates or precursors are produced by reacting in aqueous medium, one or more of, (1) 2,4-dimethylol-6-methyl phenol; 2,6-dimethylol-4-methyl phenol; 4,6-dimethylol-2,5-dimethyl phenol; 2,6-dimethylol-3,4-dimethyl phenol; 4,6-dimethylol-2,3-dimethyl phenol; or alkaline, alkaline earth or zinc salts thereof, with, (2) phenol; m-cresol; 1,3,5-xylenol; methylol derivatives of phenol, m-cresol or 1,3,5-xylenol; diphenylol propane or a methylol derivative thereof; dihydroxydiaryl methane; quebracho; mimosa; tanain or cutch.  The reaction may be catalysed by acid. A further difunctional phenolic material may be included in the reaction mixture. The intermediates may be cured by heat, if desired with the aid of hexamethylene tetramine.  The products may be used as binders in a moulding powder or for a moulding sand.  The intermediates may be transformed to their glycidyl ethers which may be cured as epoxy resins. In examples, (1) Phenol is reacted with sodium 2,6-dimethylol-4-methyl phenolate in presence of water and sulphuric acid.  The product is washed, dried and powdered and can be cured with hexamethylene tetramine.  Dissolved with hexamine in alcohol it can be sprayed on to sand in a rotating tumbler to give, after evaporation of alcohol, a moulding sand. (2) Phenol and p-cresol were reacted in presence of water and oxalic acid with 2,6-dimethylol-o-cresol.  The resin intermediate so formed may be mixed with wood flour and hexamethylene tetramine to give a moulding powder, or may be reacted with epichlorhydrin and caustic soda to form an epoxy resin which may be cured, e.g. with diethylene triamine or a polyamide.