baber/WOPTO huggingface dataset:
Patent GB-498527-A (GB)
Title: Improvements in and relating to applicator electrodes for electro-therapeutic purposes
IPC: A61N1/04
Filed: 1937-07-16
Abstract: 498,527. Electro - therapeutic apparatus; buckles. SCHOLL MANUFACTURING CO., Ltd., and NORRIS, G. THORNTON-. July 16, 1937, No. 19765. [Class 81 (ii)] [Also in Group VII] An electrode for electrotherapeutic treatment comprises a plate 1, preferably of tin, having secured thereto, preferably by solder of lower melting point than that of the plate, one element 2 of a plug and socket connection 6 for a lead 7, the connection being rendered self-cleaning as by forming the plug or the socket with sharp-edged grooves 6a. The plate 1 also has an absorbent covering 8 detachably secured by engagement of a stud 4 on the plate with a hole 9 in the covering. Preferably the covering is in the form of a bag, the two sides of which may be of different thicknesses, or which may have several layers 8a, 8b, 8c forming two or more pockets whereby according to the pocket chosen, a single or a multilayer cover may be interposed between the plate and the patient. An aperture 9 may be formed in each layer permitting reversal of the cover. The stud 4 is formed on a domed base 5 soldered to the rear side of the plate. The electrode may be secured to the body by a rubber or other strap 11, Fig. 2, having holes 12 engageable over the stud 4 and fastened by a quick-release buckle comprising two bails 13, 14, hinged together at 15, one end of the strap being passed through both bails and around the free side of one in a loop secured by a stud 16 passed through two of the holes 12, the other end of the strap being passed through the other bail and being held by friction with the first end until released by lifting the upper bail.
Patent GB-710560-A (GB)
Title: Improvements relating to control systems for electric heaters
Inventor: PANISSET DENIS SYDNEY
IPC: G05D23/24
Filed: 1950-06-26
Abstract: 710,560. Automatic temperature control. SIMPLEX ELECTRIC CO., Ltd. June 21, 1951 [June 26, 1950], No. 19830/53. Divided out of 710,491. Class 38(4) A heating element 9 is controlled by a thermally acuated bimetal switch 12, 15 having its actuating (heater) coil 16 energized from the voltage drop across a temperature - sensitiveresistor 13 associated with the heater and connected in series with a ballast resistor 10 which may act as a heater as shown, or be external to the heating element. The actuating coil circuit is also interrupted by the switch contacts so that the system cycles providing variable "On"/"Off" type of control. Modifications: (i) in the temperature-sensitive-resistor may form one arm of a bridge circuit, Fig. 2 (not shown); (ii) a second temperature-sensitive resistor may be arranged to control the heater of a second bimetallic element to provide purely thermostatic control, i.e. not connected over the switch contactor, when a predetermined maximum temperature is reached, Fig. 3 (not shown).
Patent GB-979800-A (GB)
Title: Improvements relating to snap-acting electric switches
IPC: H01H37/60
Filed: 1961-06-01
Abstract: 979,800. Snap action switches; thermal switches. HOOVER Ltd. June 1, 1961 [June 7, 1960], No. 19866/61. Heading H2B. A switch comprises a pair of superimposed, spaced spring blades each having inner and outer prongs, the free ends of the inner prongs being pivoted together and the free ends of the outer prongs also being pivoted together. As shown, the switch is used to control an electric iron and is actuated by a bimetal strip 19 which may be mounted in a stack 15, or separately mounted in a well in the sole plate of the iron (Figs. 8, 9, not shown). One of the blades 11 is mounted in the stack 15 and its inner prong 33 engages the inner prong 42 of the other blade 12 at 52. The outer prongs 32, 49 interengage at a point 53, a cross-piece 46 of blade 12 carrying a contact 47 normally engaging a fixed contact 23. The bimetal 19 carries an insulating button 37 bearing on the end 36 of blade 11, the operating temperature being set by a screw 44 engaging a part 43 of blade 11.
Patent GB-1032355-A (GB)
Title: Concentrating solutions of hydrazine, hydrazones and azines
IPC: C01B21/16
Filed: 1962-05-24
Abstract: Aqueous solutions of hydrazine are changed in concentration by introducing mixtures thereof with an aldehyde or ketone or by introducing the aqueous solution of hydrazone or azine resulting from the reaction of said hydrazine with said aldehyde or ketone into the feed zone of a permeation apparatus comprising a feed zone separated from a permeate zone by a membrane, recovering from said feed zone a mixture enriched in the hydrazone or azine, recovering from said permeate zone a mixture depleted in the hydrazone or azine, and hydrolysing the hydrazone or azine solution recovered from the feed zone to obtain a solution of hydrazine of increased concentration. Before hydrolysis the mixture recovered from the feed zone may be fed to the feed zones of one or more further permeation apparatus.  The permeate zone is preferably maintained at a pressure less than the vapour pressure of the permeate vapour.  Suitable membranes are made from cellulose acetate, regenerated cellulose, polyvinyl chloride and polyacrylonitrile, preferably pretreated with aqueous hydrazine. Suitable hydrazones and azines are those derived from acetone, methyl ethyl ketone, sulpholanyl ketones, acetaldehyde, propionaldehyde and benzaldehyde.ALSO:Aqueous solutions of hydrazones or azimes are changed in concentration by introducing them into the feed zone of a permeation apparatus comprising a feed zone separated from a permeate zone by a membrane, recovering from said feed zone a mixture enriched in the hydrazone or azime and recovering from said permeate zone a mixture depleted in the hydrazone or azine. The mixture recovered from the feed zone may be fed to the feed zones of one or more further permeation apparatus. The permeate zone is preferably maintained at pressure less than the vapour pressure of the permeate vapour.  Suitable membranes are made from cellulose acetate, regenerated cellulose, polyvinyl chloride and polyacrylonitrile, preferably pre-treated with aqueous hydrazine. Suitable hydrazones and azines are those derived from acetone, methyl ethyl ketone, sulpholanyl ketones, acetaldehyde, propionaldehyde and benzaldehyde.
Patent GB-778437-A (GB)
Title: Process for preparing aromatic diamines
Filed: 1955-07-11
Abstract: Aromatic diamines are prepared by reducing a nitroso compound of formula <FORM:0778437/IV(b)/1> wherein R is an alkyl group having one to four carbon atoms, R1 is an alkyl group having one to four carbon atoms or an alkylsulphonylamidoethyl group whose alkyl group has from one to four carbon atoms and R2 is a hydrogen atom or methyl group, the reduction being effected by hydrogen either in the presence of nickel, palladium or platinum while the nitroso compound is in a molten condition or in the presence of palladium while the nitroso compound is in solution.  Specified values of the groups in the formula are R, methyl or ethyl and R1, methyl or ethyl or p-(methyl- or ethyl-sulphonamido) ethyl.  Hydrogenation in the molten state is preferred.  The preferred catalyst is five per cent palladium on an inert carrier.  In the molten state hydrogenation the temperature used is sufficient to keep the nitrosoaniline molten but not to cause decomposition.  In the solution hydrogenation the temperature may vary between about 25 DEG  C. and the boiling-point of the solvent. Specified solvents are methanol, ethanol and propanols.  The hydrogen pressure may vary from about 100 pounds/square inch to about 1500 pounds/square inch or higher.  In examples: (1) 4-nitroso-N:N-diethylaniline was reduced in the molten state using a palladium on alumina catalyst to give 4-amino-N:N-diethylaniline; (2) 2-nitroso-5-diethylaminotoluene was hydrogenated in the molten state using palladium on alumina or carbon as catalyst to give 2-amino-5-diethylaminotoluene, the hydrochloride also being formed; (3) N-ethyl-N-b -(methylsulphonamido) ethyl-4-nitroso-3-methylaniline was dissolved in isopropanol and hydrogenated using a palladium on alumina catalyst, the product being obtained as N-ethyl-N-b -(methylsulphonamido) ethyl-3-methyl - 4 - aminoaniline hydrochloride.  4-Nitroso-N:N-diethylaniline was obtained by adding diethylaniline to cold concentrated hydrochloric acid followed by the addition of an aqueous solution of sodium nitrite with cooling, and converting the hydrochloride of the nitroso derivative to the base by the addition of aqueous ammonia.  2-Nitroso-5-diethylaminotoluene was prepared from N:N-diethylmetatoluidine in a similar manner to that described above but using aqueous sulphuric acid and sodium hydroxide solution.  N-Ethyl-N-b -(methylsulphonamido) ethyl - 4 - nitroso - 3 - methylaniline was prepared by reacting N-ethyl-m-toluidine with formaldehyde, sodium bisulphite, sodium cyanide and water to give N - ethyl - N - b  - cyanomethyl - m - toluidine which was hydrogenated in the presence of Raney nickel and liquid ammonia to give N-ethyl - N - b  - aminoethyl - m - toluidine which was reacted with methanesulphonyl chloride to give N - ethyl - N - b  - (methylsulphonamido) - ethyl-m-toluidine which was finally nitrosated as described under 4-nitroso-N:N-diethylaniline above. Specification 536,577, [Group IV], is referred to.
Patent GB-659884-A (GB)
Title: Improvements in and relating to bituminous compositions
IPC: C08K5/3462
Filed: 1949-07-29
Abstract: 2 - Hepta-decyl - 4,6,6 - trimethyl - 1,3 - diaza-1-cyclohexene is prepared by refluxing a mixture of stearic acid 2-methyl-2,4-pentane diamine, and a trace of concentrated sulphuric acid and xylene for 116 hours at 175-195 DEG  C.  Sodium carbonate is added and refluxing continued for 20 hours.  Residue is distilled and the cyclohexane derivative is obtained at 184-200 DEG  C. at 2 mm. pressure.ALSO:A bituminous composition incorporates 0.1 to 5 per cent by weight of a tetrahydro-pyrimidine derivative wherein at least one substituent is an alkyl group having at least 10 carbon atoms. Specified derivatives are 2-heptadecyl-4,6,6-tri-methyl - 1,3 - diaza - 1 - cyclohexene, 2 - octadecyl - 6,6 - dipropyl - 1,3 - diaza - 1 - cyclohexene, 2 - carnaubyl - 4,6 - diamyl - 1,3 - diaza-1 - cyclohexene, 2 - heptadecyl - 4,5,6,6 - tetramethyl-1,3-diaza-1-cyclohexene.  The alkyl group containing at least 10 carbon atoms may be decyl, dodecyl, tetradecyl, cetyl, ceryl or carnaubyl.  The derivative may be added as such or in solution to the melted bitumen, or it may be sprayed as a priming coat on the aggregate or surface to be subsequently coated with bitumen.  Bituminous materials specified are pyrogenous residues, e.g. asphaltic bitumen and pitches and natural asphaltic bitumens and tars, e.g. coal tar.
Patent GB-1316684-A (GB)
Title: Spindle and box coupling combination for a rolling mill
IPC: B21B35/14
Filed: 1971-04-19
Abstract: 1316684 Rolling mill couplings ACHENBACH BUSCHHUTTEN GmbH 19 April 1971 [6 June 1970] 20046/71 Heading B3M The driving spindles 1 and 2 for the rolls of a rolling mill are provided with spindle heads 18 which can be set at a desired angle to the respective roll necks to facilitate roll changing. Each spindle is supported by a vertically adjustable roller 3 and carries a sleeve 11 which cooperates with the head. The sleeve is spring- loaded towards the head but is movable in the opposite direction by rollers 13 carried on pivoted arms 14. When the sleeve is moved by the rollers it contacts an inwardly directed flange 20 on the head. The contact between the sleeve and an adjustable screw 21 in the flange determines the amount to which the head is deflected from the axis of the spindle. A part-spherical face 24 on the end of the spindle co-operates with a face 23 of the head to accommodate tilting of the head. Teeth 26 and 27 provide a driving connection between the head and spindle.
Patent GB-153685-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02F7/00
Filed: 1919-08-15
Abstract: 153,685. McHardy, R. H. Aug. 15, 1919. No Patent being granted (Sealing fee not paid). Valve-gear.-A cylinder a is formed in one piece with a crank chamber a<1> from which the crank shaft may be withdrawn through an opening provided with a cover plate a <2> A second cover-plate a<4> is mounted upon the base of the chamber. A cam-shaft f is driven from the crank-shaft through gearing f<1>, b<2>, and the cams act upon balls h<1>, h<2> mounted in a cap h screwed into the chamber housing the cam-shaft.
Patent GB-700002-A (GB)
Title: Improvements in means for assembling supporting beams
IPC: E21D17/086
Filed: 1949-08-02
Abstract: 700,002. Mine roof supports. PROGRES CHARBONNIER PROCHAR SOC. COOPERATIVE. Aug. 2, 1949 [Jan. 31, 1949], No. 20126/49. Class 20 (2) A beam which forms part of a pit support and which is adapted to be pivotally attached at one end to one end of a similar beam supported against the roof of the working and which is then raised about the pivot and locked into position against the roof, comprises a beam formed by spaced longitudinals a, Figs. 1 and 2, between which are secured a jaw-forming end member b and a similar but bifurcated jaw-forming end member b<SP>1</SP> the members, b, b<SP>1</SP> having, respectively, holes c, c' and hooks d, d'. The bifurcated member b' of one beam is engaged with the member b of the adjacent beam and a pivot pin e is passed through the holes c, c<SP>1</SP>, the unsupported beam then being raised about the pivot e until it engages the roof in which position it is locked by a key f, Fig. 3, driven between the opposed hooks d, d<SP>1</SP>. The cheeks of the key and the co-operating faces of the hooks have the form of a helicoid or other ruled surface adapted to ensure contact over the entire extent of said surfaces whatever the relative angular positions of the beams and the degree of engagement of the key. Specification 652,701 is referred to.
Patent GB-929942-A (GB)
Title: Fluid mixing valves and control systems employing the same
Inventor: GIBBONS RICHARD THOMAS
IPC: G05D23/13
Filed: 1959-06-12
Abstract: 929,942. Fluid-pressure servomotor control systems; valves. GLOSTER AIRCRAFT CO. Ltd. June 13, 1960 [June 12, 1959], No. 20195/59. Class 135. An air supply system for an aircraft cabin, comprises a high pressure hot-air inlet 5 and a low pressure cold-air inlet 3, a proportioning valve 11, a mixing chamber 10 and an outlet 7 leading to the cabin. The valve member 11 is connected to a diaphragm 16, by a stem 12, and is normally controlled by air tapped from the high pressure inlet 5 through conduits 22, 19 to a chamber 18, the pressure of the tapped air in chamber 18 being controlled by a temperature-controlled vent valve 37, the setting of which is manuallycontrolled. A pressure controller 23 is provided comprising a valve member 27 connected to a diaphragm subjected on one side to the outlet pressure through conduits 32, 31, and on the other side to the cabin pressure through line 34. The valve 27 is normally open and connects a conduit 51 from a second tapping of high-pressure air through a normally open valve 49, conduit 52 to atmosphere. In the event of the outlet pressure exceeding the cabin pressure by a predetermined value, such as 0.2 p.s.i., the valve 27 closes, whereby the high pressure flows from conduit 51 through conduit 43 to a chamber 42 and acts on a diaphragm 41. This diaphragm is forced downward and contacts an abutment 44 of the valve stem 12 and moves the valve member 11 to reduce the proportion of high-pressure air from the inlet 5. In the event of adjustment by the knob 39 to reduce the temperature without response from the system, final adjustment of the knob to its lowest temperature setting acts on a microswitch 45 to energize a coil 47 of a valve 46 which causes closure of the valve member 49, whereby the pressure is fed to chamber 42 as in the closing of valve 47, with subsequent reduction of the proportion of hot high-pressure air. In a modification, the diaphragm 41 is omitted and the pressure controller 23 is located in the conduit 22 between the branch line 19 and the temperature control valve 37. In this case the solenoid control valve is not provided and the diaphragm 16 can be actuated mechanically in the event of failure of the control system. The valve member 11 is connected to the stem 12 by a balljoint, the valve member first contacts an edge of the ends 8, 9 of the inlets and then hinges about these edges when varying the proportions.
Patent GB-854842-A (GB)
Title: Improvements in or relating to liquid-fuel lamp burners
IPC: F23D3/00
Filed: 1959-06-12
Abstract: 854,842. Wick burners. DIETZ CO., R. E. June 12, 1959 [Dec. 2, 1958], No. 20232/59. Class 75(1). A burner for an oil lamp includes an inner wick tube 12, an outer wick tube 30 telescopically mounted on but not in thermal contact with the upper end of the inner wick tube 12 and a radiation plate 32 secured in heat conducting relation to the outer wick tube 30. A minute clearance exists between the outer and inner wick tubes. The radiation plate 32 is perforated and its outer edge engages a shoulder 34 of the burner body. A perforated flame plate 36 is secured to the upper end of the outer wick tube 30.
Patent GB-247095-A (GB)
Title: Improvements in devices for transferring thermo-electric power effects to the skin
IPC: A61N1/28
Filed: 1925-08-12
Abstract: 247,095. Graefe, W. Aug. 12, 1925. Electric appliances. - A device adapted to be placed in contact with the skin 4 to administer electricity thereto comprises alternate pieces 1, 2 of two different metals, e.g. steel and silver..soldered together to produce a zigzag strip, the adjacent joints of the strip being respectively heated by contact with the skin and cooled by the atmosphere. The device may take the form of a hair-pin, bangle, or belt, or may be inserted in articles of clothing.
Patent GB-571376-A (GB)
Title: Improvements in or relating to milling machine control gear
IPC: B23C9/00
Filed: 1943-12-03
Abstract: 571,376. Motor control systems. FRYE, J. Dec. 3, 1943, No. 20257. [Class 38 (iii)] [Also in Group XXII] Driving and control gear for a milling machine is operated electrically through the circuit shown in Fig. 4. Current is supplied to an autotransformer and from which a braking current may be passed through a rectifier ¢R to the windings of the spindle motor and feed motor under the control of' switches 1BC, 2BC respectively operated by coils 1bc1 and 2bc1. A further supply of direct current from a rectifier 4R is passed to a slugged relay 1sr1 under the control of a switch 1C5 of the forward spindle motor contactor 1C and to a slugged relay 2sr1 through either of two switches 2fc5 and 2rc5 of the contactors 2FC and 2RC of the feed motor. The coil 1bc1 is controlled by a switch 1SR adapted to be closed by the slugged relay 1sr1 and by a switch 1C6 which energizes the coil when the contactor 1C opens. Similarly the coil 2bc1 is energized through a switch 2SR closed. by the slugged relay 2sr1 upon the closure of switches 2fc6 and 2rc6 when contactors 2FC and 2RC are opened.
Patent GB-962418-A (GB)
Title: Improvements in and relating to fluid pressure measuring apparatus
Inventor: ROBB DUGALD NICHOLSON
IPC: G01L7/16
Filed: 1962-05-25
Abstract: 962,418. Pressure gauges. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 24,1963 [May 25, 1962 ], No. 20296/62. Heading G1L. In an apparatus in which the pressure of a fluid 15, supplied to a chamber 12 through a port 16, is to be measured, the fluid passes through a port 19 into a cylinder 17 and acts against a differential piston 18 which is coarsely balanced by weights suspended from a frame 25 supported from the lower end of the piston 18 by a universal joint 24; the final balance is obtained by water pressure being read off a manometer 41. The chamber 12 is supported on a bracket 13 attached to a pillar 11 and the piston 18 is rotated by a motor 36 through a belt 35, spinner 34 and pins 37 driving a tray 28 attached to the piston 18. The pins 37 drive the tray 28 through ball races 38. A conical oil spreader 22 on the lower end of the piston 18 and located in a transparent cylinder 21 serves to throw fluid, leaking between the cylinder 17 and piston 18, on to the wall of the cylinder 21 from whence it drains into an annular reservoir 23.
Patent GB-136230-A (GB)
Title: Improvements in Spring Hooks and in or relating to the Manufacture of the same.
IPC: F16B45/02
Filed: 1918-12-07
Abstract: 136,230. Wheway & Son, J., and Hunter, A. R. Dec. 7, 1918. Hooks, spring.-In spring hooks of the kind known as spring billets and snaps, the body portion of a hook is formed from wire, and the short side from a blank of spring steel. Figs. 1 and 2 show a spring billet. The body portion is made from a closed wire loop, which is pressed together over part of its length, leaving a ring or eye a. A spring steel blank of T-shape has the wide portion bent over the wire body a<2>, as at b<2>, and the stem b threaded through the eye and then bent down. The body portion a<2> is then bent at the end into hook shape to overlap the spring stem b. In the case of a spring snap, shown at Figs. 10 and 11, the body is made from a folded piece of wire a<3>, which is pressed together through part of its length. The spring or short side is made from a T-shaped blank, the wide part of which is bent over to grip the body, the stem b being brought round between the separated parts of the body to close the hook bent up from the end of the body.
Patent GB-248636-A (GB)
Title: Improvements in or relating to sprays for toilet and like purposes
IPC: B05B1/18
Filed: 1925-08-13
Abstract: 248,636. Morrison, A. F. Aug. 13, 1925. Joints with longitudinal pressure and with yielding outer part compressed.-The outer end of a rubber tube 15 may be connected with a water supply by a screwed thimble 12 secured thereto by a union nut and sleeve 13.
Patent GB-695700-A (GB)
Title: Improvements in or relating to bonded magnetic cores and processes for producing them
IPC: H01F27/25
Filed: 1952-08-13
Abstract: 695,700. Inductances and transformers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 13, 1952 [Sept. 6, 1951], No. 20360/52. Drawings to Specification. Class 38 (ii). The laminations or other elements of a magnetic core are bonded together by first impregnating the core with a solution containing less than 18 per cent by weight of a curable resin, and then heating first to evaporate the solvent and then to cure the resin, and subsequently wrapping a non-conducting fibrous material round the core which is thereby covered to at least 50 per cent, and coating the core with a viscous curable resin which penetrates the wrapping but not the core interstices, and is afterwards cured. Such a core combines low loss with high physical durability, the laminations being joined by spot adhesion. Various examples arc given of the interstitial resins, preferably thermosetting and of the coating resins, e.g. epoxides. The fibrous material may be of glass fibre, cotton cord, asbestos tape, or tapes of synthetic resin fibres such as nylon. The core may be of wound strip cut across into two U-shaped parts with bare abutting ends. Specification 553,864 is referred to.
Patent GB-238707-A (GB)
Title: Improvements in cases for treasury notes, cards or other articles
IPC: A45C1/06
Filed: 1924-08-29
Abstract: 238,707. Gaunt, C. F. Aug. 29,1924. Fittings, internal; contents, facilitating access to; fittings, external.-A case for cigarettes, treasury notes, cards, &c., is provided with spring clips or plates 4, 5, pivotally mounted, to retain the contents in position and with finger holes 9. 10 in one or both halves 1, 2 for facilitating the removal of the contents. The plates 4, 5 which may be staggered as shown, are preferably controlled by springs 6, 7. A ring or hook for attaching a chain may be incorporated in the snap fastenings 8 of the case.