baber/WOPTO huggingface dataset:
Patent GB-579337-A (GB)
Title: Improvements relating to electrical measuring apparatus
IPC: G01R17/16
Filed: 1942-11-30
Abstract: 579,337. Electric meters. COSSOR, Ltd., A. C., BEDFORD, L. H., BELL, J., and LANGHAM, E. M. Nov. 30,1942, No. 20009/43. Divided out of 579,325, [Group XIX]. [Class 37] A null-voltage indicating circuit comprises a pair of similar thermionic valves 1, 2 having similar anode loads 3, 4, a direct current null indicating meter 11 connected between the anodes of said valves, a common cathode load consisting of two resistance potentiometers in parallel with each other and with a smoothing condenser 13, means to excite the anode circuit with alternating voltage, means to connect the grid of valve 2 to a tapping on one of said potentiometers 5 and means to inject the voltage to be nulled between the grid of valve 1 and a tapping on the other of said potentiometers, so selected that when said voltage is zero a null indication is obtained on the meter 11. To adjust the circuit for inequalities, switch 9 connects the grid of valve 1 to the mid point of resistance 6 and the tapping of the potentiometer 5 is adjusted until the meter 11 reads zero. A direct voltage to be measured is applied to terminals 10, put into circuit by the switch, and the movement of tapping 8 from mid position, to give a null indication, is a measure of the voltage. The tapping may be graduated or may be mechanically coupled to another instrument which it is desired to set according to the measured voltage. Another voltage applied at terminals 14 can be measured in a similar manner on potentiometer 7. An alternating voltage in phase with the source 16, can be measured by being put into series with a potentiometer connected across the secondary of a transformer supplied by the source 16, the total output being applied to terminals 15. The adjustment of the potentiometer when a null reading is obtained is an indicating of the alternating voltage.
Patent GB-358883-A (GB)
Title: Improved means for joining lengths of conduit rods, drain rods, sweeps brush rods and the like
IPC: H02G3/06
Filed: 1930-07-02
Abstract: 358,883. Rod joints. HOROBIN, J. D. and HOROBIN, A., 112, Compton Road, Wolverhampton. July 2, 1930, No. 20029. [Class 99 (i).] In a joint for drain rods, sweeps' rods, &c., the end of the rod A has a projection a of square or other non-circular section which engages a corresponding bore in the rod B, and a spring-pressed detent C, pivoted on the rod B, engages a notch a<1> in the rod A. Reference has been directed by the Comptroller to Specification 11203/85, [Class 48, Fish &c.].
Patent GB-238253-A (GB)
Title: An improved process for the manufacture of celluloid-like masses from the esters or ethers of cellulose
IPC: C08L1/08
Filed: 1925-08-10
Abstract: 238,253. Romahn, A. Aug. 9, 1924, [Convention date]. Plastic compositions containing cellulose esters, ethers.-Esters or ethers of cellulose are kneaded with a volatile solvent and a non-volatile gelatinizing agent, and the mass is worked up at a temperature at which the volatile solvent evaporates quickly. According to an example, 75 kg. of nitro cellulose containing 25 per cent alcohol, is kneaded with 25 kg. of acetanilide in 60 litres of alcohol, and the plastic mass is passed through rolls heated to about 90‹ C. for about 20 minutes. The mass is then worked as usual.
Patent GB-750169-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/12
Filed: 1953-07-20
Abstract: 750,169. Draught excluders. F. T. PRODUCTS, Ltd. July 2, 1954 [July 20, 1953], No. 20100/53. Class 20(3). A rubber or like draught excluder 31, Fig. 7, is secured to a member such as a panel 28 of an automobile door, by means of a plurality of fasteners each of which is formed from a single strip of metal and has its central portion bent to the shape of a snap-engaging U-stud 17, Fig. 1, and its two ends bent to form opposed inwardly directed hooks 13A, 14A, which engage the strip 31. The draught excluder 31 has an effective portion 32 and a rib 33 which is engaged by spaced fasteners, the studs of the latter entering apertures 34 in the panel 28. The limb 19 of the stud 17 is straight and the limb 20 is bent to form an elbow 21, the axis of the stud being oblique at an angle of 70‹-75‹ to the axis of the base 18 so as to clear the portion 35 of inner panel 29. Each limb 19, 20 has sloping shoulders such as 15A, 16A, and the hook 14A may be longer than hook 13A. In a modification sloping shoulders are provided on one limb only and in a further modification, Fig. 9, the fastener is symmetrical about axis 43.
Patent GB-796350-A (GB)
Title: Improvements relating to metallisable monoazo dyestuffs, complex heavy metal compounds thereof, and their use
IPC: C09B45/14
Filed: 1955-07-12
Abstract: The invention comprises dyestuffs of formula <FORM:0796350/IV (b)/1> where A is a benzene residue bound to -N = N- in o-position to OH and containing no water-solubilizing groups which dissociate acid in neutral water and complex metal compounds of formula (F-M1-F1)M2 where M1 is Cr or Co, M2 is an alkali metal cation, F is F1 or a coordinated o,o1-dihydroxy monazo dyestuff containing no water-solubilizing groups which dissociate acid in neutral water and F1 is a coordinated dyestuff of the above formula.  The metal free dyestuffs are made by coupling o-aminophenols with 1-carbamylamino-7-naphthol advantageously in aqueous-alkaline solution and optionally in the presence of tert. nitrogen bases. The phenols may contain halogen, alkyl, nitro, acylamino, acyl, alkyl or aryl sulphone, cyano, carboxylic acid amide, or sulphonamide substituents the latter especially when derived from secondary aliphatic, araliphatic or heterocyclic amines and particularly carboxylic acid anilide groups.  Specified diazo components are 4-, 5- and 6-nitro-, 4- and 5-chloro-, 4,5- and 4,6-dichloro-, 3,4,6-trichloro-, 4-methyl-, tert. and n-butyl-, tert. amyl-, acetyl-, benzoyl-, cyano-, phenyl-, p-toluylsulphonyl-, 4-methyl- and chloro-5-nitro-, 4-methyl-, tert. butyl-, tert. amyl acetylamino- and chloro-6-nitro-, 6-acetylamino- and chloro-4-nitro -, 6 - acetylamino - 4 - acetyl -, chloro-and butylsulphonyl - and 4,6 - dinitro - 2-aminophenols, 2 - aminophenol - 4 - sulphonic acid - dimethyl - and diethyl - amides, anilide, N-methyl - and ethyl - anilides, piperidide and morpholide.  Metallization is effected in conventional fashion either in substance or on substrata.  Mixed metal complexes are preferred where F1 is derived from a dyestuff which yields blue to green metal complexes and F is derived from a dyestuff having no SO3H groups and which produces yellow to orange metal complexes as obtainable, e.g. from diazotized o-amino-phenols or benzene carboxylic acids and acyl acetic acid arylamides and 5-pyrazolones. The resulting mixed metal complexes have brown to green or grey shades.  The metal dyestuffs dye natural and synthetic polypeptide fibres such as wool, silk, polyamide and polyurethane fibres from weakly alkaline to weakly acid dyebaths.  When dyeing textiles it is preferred that the complexes are used as their alkali metal salts. Examples and a Table are provided illustrating the preparation of the dyestuffs and their metal complexes and the use of the latter in dyeing wool, the components used are chosen from those listed above with the addition of 2-aminophenol-4-phenyl sulphone, for single dyestuffs the components used corresponding to F when not F1 are 2-aminophenol-4-ethyl sulphone and acetoacetic acid o-chloranilide and 1-(31-chlorophenyl)-3-methyl-5-pyrazolone.  Reference has been directed by the Comptroller to Specification 637,404.
Patent GB-264087-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C13/00
Filed: 1926-08-16
Abstract: 264,087. Jones, L. M. Aug, 16, 19-26. Extincteurs. - In a fireextinguisher of the type having separate receptacles for gas producing liquids, one receptacle is sealed by a valve carried by a spindle which closes the outlet passage for the liquid, when the valve is closed, and opens it when the valve is open. The extinguisher comprises receptacles 1, 5, connected by a screwed cap 3. The inner receptacle has ports 6 and a valve seat 7 closed by a lift valve 8. The valve is opened by a spindle 10 and handle 11 against a spring 9. The valve is maintained open by a pin 12 rotated above a collar 13. The liquids can then mix through the ports 6. The outlet passage 14 is normally closed by the spindle 10 which is preferably of greater diameter than the passage. The spindle 10 is, however, provided with a narrow neck 16 or a corresponding perforation or passage which opens the passage 14 when the valve 8 is raised. The valve 8 may have a strainer 21.
Patent GB-1140812-A (GB)
Title: Large scale flash distillation plant
IPC: B01D3/06
Filed: 1967-05-02
Abstract: 1,140,812. Evaporators, flash type; desalination of water. BALDWIN-LIMA-HAMILTON CORP. 2 May, 1967 [1 June, 1966], No. 20236/67. Heading B1B. A distillation plant, suitable for the desalination of sea water, is made up of a plurality of sections 12 each comprising a series of flash evaporator stages 26 separated by partitions 28 traversed by condenser tubes 46; the side walls of each section have openings and flanges 56, 62 which are welded to the corresponding flanges of the adjacent section(s) so that the vapour-space of the each stage of each section is in communication with the vapour-space of the corresponding stage of the adjacent section(s). Partitions 28 extend through these openings and terminate in edges coplanar with the outer edges of flanges 56. Sea water is passed through the tubes 46 of each section and, after further heating, is introduced into the first flash stage of the section. The sea water rises between walls 30 and a portion flashes into steam. A mixture of steam and sea water particles strikes baffles 36, 38. The separated sea water flows down sloping walls 34 and through orifices, in partition 28, into the following flash stage, where a lower pressure is maintained than in the preceding stage so that further flashing occurs. The steam separated in the first stage flows through demisters 48 and condenses on tubes 46. The condensate (desalinated water) collects in tray 40 and then flows through a liquidseal into the portion of tray 40 in the following stage.
Patent GB-677007-A (GB)
Title: Seed planter
IPC: A01C7/00
Filed: 1949-08-03
Abstract: 677,007. Seed-sowers. STACKHOUSE, LAURENCE & CO. Inc. Aug. 3, 1949 [Aug. 28, 1948], No. 20248/49. Class 6(i) An apparatus tor sowing seeds having a magnetizable coating comprises a hopper 7 through which passes a wheel 13 having magnets mounted radially in it, each magnet being adapted to pick up a single seed which is subsequently released by an ejector 36 adjacent to the furrow. The wheel rotates in a casing 4 provided with arms 5 and 6 for attachment directly to a tractor. Furrowopeners (not shown) may be provided, and furrow-closing tools 48 are adjustably secured to the casing 4. Each magnet is surrounded at its outer end by a non-magnetic cap pierced by a hole 32 small enough to accommodate one single seed. A circumferential groove 23 intersects all the holes 32, and in it rides the ejector 36 located at the lowest point on the wheel. The wheel is driven, from the tractor. through a belt 52, oppositely to the direction of motion and at such a speed that the seeds only fall vertically. An adjustable scraper 43 prevents more than one seed being retained in each cavity 32, and a brush 57 removes other foreign matter. In a modification, Fig. 11, electromagnets are used, each circuit being broken at a predetermined point to release the seeds. The solenoids 114 are each connected at their upper ends to the metal disc 101 and thence to the electrical connection 147, and at their lower ends to the electrical connection 135 through a spring 142 and a contact button 123 sliding on a fixed metal cam 129. The cam is stepped at a point corresponding to the lowest point of the wheel and the connection to the inner end of the solenoid is interrupted at this point, to release the seed. Specification 621,242 is referred to.
Patent GB-355886-A (GB)
Title: An improved ruler
IPC: B43L7/00
Filed: 1930-07-03
Abstract: 355,886. Rulers. DAVIS, W., No. 2 Road, Te Puke, New Zealand. July 3, 1930, No. 20250. [Class 97 (iii).] A ruler for ruling a number of parallel lines without shifting the ruler is provided with one or more narrow slots B, as shown in the Figure, extending throughout the major portion of its length, and arranged parallel with respect to each other and to the edges of the ruler, the centre lines of the slot or slots being so disposed in relation to the edges of the ruler as to divide the width into equal divisions. Each slot is preferably made with its sides tapering inwardly to each other to a narrow width at the middle.
Patent GB-148371-A (GB)
Title: Improvements in and relating to hooks designed especially for handling oil well casings and the like
IPC: E21B19/04
Filed: 1920-07-09
Abstract: 148,371. Wigle, W. B. May 19, 1915, [Convention date]. Bore-hole apparatus. - A hook for handling oil - well casings is provided with an antifriction bearing to permit the casing to be readily rotated, and with means to eliminate strain on the threads of casing sections. The hook comprises a yoke 9, Fig. 2, having a pivoted cross-bar 10 to receive the shank 17 of a hook 16 in a hole 13. A sleeve 15 is secured to the crossbar by a threaded flange 14 and serves as a housing for a spring 19 encircling the shank 17 and engaging at its upper end a disk 20. Between this disk and a similar disk 21 balls are provided, a nut 18 being secured to the end of the shank. The hook supports an elevator 5, Fig. 1, having a coupling supporting a section 6 of the well-casing. A threaded coupling 7 secures section 6 to section 8. The yoke 9 is supported from a derrick. In pulling a well-casing, the weight of the casing causes the disk 20 to rest on the sleeve 15, and the spring is such that as a coupling is unscrewed, the spring extends and lifts the section, while the lower section 8 is supported by independent means.
Patent GB-137770-A (GB)
Title: Improvements in means for completing or promoting the combustion of gases in boiler furnace flues or tubes
IPC: F23M9/00
Filed: 1919-08-18
Abstract: 137,770. Hassall, W. Aug. 18, 1919. Addition to 128,325. Baffles. - Consists in making the baffle-block B described in the parent Specification of slightly tapering form so as to provide an annular passage E around the 'block of gradually decreasing area in cross-section.
Patent GB-183358-A (GB)
Title: Improvements in carburettors for use in internal combustion engines
IPC: F02M9/02
Filed: 1921-07-29
Abstract: 183,358. Veulle, F. H. de. July 29, 1921. Spray carburettors of the type in which rich mixture is admitted to the main air stream where it is usually controlled by the throttle valve have, in combination with the rich mixture passage, a by-pass around the throttle valve, an air vent and a sliding valve independent of the throttle valve adapted (1) to open or close the by-pass, (2) to place the air vent in variable communication with the rich mixture passage, (3) to open or close the passage. The rich mixture passage B is traversed by a ported sleeve C enclosing a spring-loaded valve D of dumb-bell shape actuated by a Bowden wire K. Ports C' in the lower end of the sleeve lead to an annular chamber E from which the by-pass F is supplied. In the lowest position of the valve, the by-pass and passage B are open; as the valve is raised, the by-pass is cut off and subsequently, as shown in Fig. 3, an air vent G is put into communication with the passage B. Further movement cuts off all the passages and air alone may then be admitted to the engine through the main throttle valve.
Patent GB-1314475-A (GB)
Title: Electrical socket connector with releasable retained spring contacts
IPC: H01R13/415
Filed: 1971-04-19
Abstract: 1314475 Two-part couplings ITT INDUSTRIES Inc 19 April 1971 [4 Feb 1970] 20531/71 Heading H2E An electrical socket connector comprises an insulated body provided with chambers of rectangular cross-section releasably accommodating spring contacts formed from a sheetmetal blank and comprising a box-shaped body of substantially U-shaped cross-section with extensions which are folded to lie inside the box-shaped body to form resilient contact blades, each of which contacts is also provided with a latching tongue which engages the lip of an aperture provided in a side wall of each chamber. The contact may also be provided with lugs which can be bent as shown to facilitate the stacking of more than one connector on to corresponding long contact pins.
Patent GB-818964-A (GB)
Title: Fluid-mechanical transmission
Inventor: SURI MAN MOHAN
IPC: F16H47/08
Filed: 1956-07-04
Abstract: 818,964. Variable-speed gearing. INDIA, PRESIDENT OF THE REPUBLIC OF. Nov. 7, 1956 [July 4, 1956], No. 20667/56. Class 80 (2). In a motor vehicle, a driving-shaft K is connected either through gears 1, 2, a fluid coupling or torque converter B and gears 3 ... 5 to a driven shaft N by filling the coupling &c., or alternatively a reaction ring 9 carrying idle gears 7a is braked while the coupling is emptied, so that a direct mechanical drive between gears 6, 8 on the two shafts is obtained. In the form shown, the gears 6 ... 8 are bevel gears, but alternatively epicyclic gearing may be used. A pump D is driven from the shaft K and supplies oil to a three-position control valve E.. In the position of the valve shown, no oil is supplied to the converter B or to a servomotor actuating the brake mechanism C which can be applied to station the reaction ring 9. By raising a control handle F to a second position, oil is supplied..through the valve E to the converter B so that it transmits drive. On raising the handle F to a third position, oil under pressure is supplied to the servomotor controlling the brake mechanism C, which is thereby conditioned to station the reaction ring 9, the valve E simultaneously venting the coupling B to exhaust. The brake C, Fig. II (not shown), comprises reciprocating pistons in cylinders con-. nected by pipes, incorporating valves actuated by the servomotor so that either the valves are opened and the cylinders freely interconnected, in order that the pistons can be reciprocated to pump into each other by an eccentric which rotates with a shaft P and a gear 10 driven from the reaction ring 9, or alternatively the valves are closed and the pistons prevented from pumping so that the shaft P &c. and reaction ring 9 are held stationary. As modifications, the brake C may be controlled electrically or mechanically, or the handle F may be moved automatically in response to change of the speed or load of the vehicle. The device may be extended to comprise more than one fluid transmission line in parallel with more than one mechanical transmission line.
Patent GB-281579-A (GB)
Title: Process and apparatus for treating hot metal sheets
IPC: C21D9/46
Filed: 1926-06-16
Abstract: 281,579. Davies, J. C., (Watkins, W. E.). June 16, 1926. C o o l i ng discharged materials. - The hot sheets from the furnace described in Specification 281,578 are passed through a cooling chamber, the rate of the discharge of the gases therefrom being positively controlled and so coordinated with the rate of travel of the sheets through the chamber that the cooled sheets will not oxidize readily when exposed to the air. The sheets are fed by rollers on to a conveyer 282 into a cooling chamber 276 and inert gases from the furnace are fed in through an opening 276a. The chamber 276 is provided at each end with stacks 277, 278 having dampers 279, 280 for controlling the discharge of the gases and also with cooling pipes 281 through which water is circulated. The conveyer 282 comprises side chains connected by cross-rods 283, each rod being provided with members 284 which are movably mounted in slots in the rods 283 and provided with rollers which contact with guides 285, 286 arranged so that the sheets are fed forward in alignment with the centre of the apparatus. The guides 285 286 are adjustably mounted so that their positions may be varied and are provided with a bent portion 287 so that the sheets may travel forward a short distance even though they are not in their proper alignment. During the return movement of the conveyer the rollers on the members 284 contact with cams which return those members to the wide-apart position shown in Fig. 3. Specification 281,349 also is referred to.
Patent GB-1223377-A (GB)
Title: Iso-enol phosphates and derivatives thereof
Inventor: TIEMAN CHARLES HENRY
IPC: D06M13/295
Filed: 1969-04-23
Abstract: 1,223,377. Vinyl phosphate derivatives. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 23 April, 1969 [25 April, 1968 (2)], No. 20694/69. Heading C2C. [Also in Division A5] Phosphate derivatives of the formula where R is C 1-4  alkyl or C 2-8  alkyl containing 1 or 2 oxygen atoms as linking atoms, X is oxygen or sulphur, and R<SP>1</SP> is C 1-4  alkyl, C 2-4  alkenyl, C 3-4  alkynyl, aryl, or aralkyl, where the aryl groups may be substituted by one or more C 1-4  alkyl, halogen, C 1-3  alkoxy, alkylthio, C 1-3  alkyl sulphinyl or alkyl sulphonyl, sulphonamido, C 1-4  N-alkyl sulphonamido or N,N-dialkyl sulphonamido where each alkyl is C 1-4 , are prepared (a) by reacting 4-chloroacetoacetyl chloride with an alcohol R<SP>1</SP>OH or mercaptan R<SP>1</SP>SH to form the ester and reacting the ester with an appropriate trialkyl phosphite, or (b) by reacting a 3-dialkoxy (phosphinyloxy) crotonyl chloride with a compound R<SP>1</SP>XH in the presence of a base. Compounds of the formula are prepared by subjecting the above described phosphate to the action of a strong base, and compounds of the formula where R<SP>2</SP> is C 1-4  alkylene, n is 0, 1 or 2, and R<SP>3</SP> is C 1-3  alkyl, or when n=2, R<SP>3</SP> can be amino, alkylamino or dialkylamino in which each alkyl is C 1-4 . The phosphate derivatives have pesticidal properties.
Patent GB-681553-A (GB)
Title: Improvements in or relating to pipe stills
Inventor: BRADLEY ARTHUR
IPC: B01D3/04
Filed: 1949-08-09
Abstract: <PICT:0681553/III/1> A pipe still for distilling tar or oil wherein the distillation coil 8 is separated from a wall of the main uptake 2 by a jacket wall 3, and wherein furnace gases pass upwardly through the main uptake 1, downwardly over the distillation coil 8, and then pass through openings 5 at the foot of the jacket wall 3 into the jacket 4 and upwardly through the jacket 4 when they rejoin the furnace gases from the main uptake.  If desired (1) a further quantity of flue gases may be injected into the jacket, (2) openings may be provided in the uptake wall to allow some of the furnace hot gases to pass into the jacket.  In a modification (not illustrated) the uptake is external to the coil.
Patent GB-981299-A (GB)
Title: Duplexer
IPC: H01J17/04
Filed: 1961-06-08
Abstract: 981,299. Waveguide couplers. COMPAGNIE FRANCAISE THOMSON-HOUSTON. June 8, 1961 [June 9, 1960], No. 20719/61. Heading H1W. [Also in Division H4] A waveguide duplexer comprises an endless waveguide including a non-linear element in the form of a directional coupler in the apertures of which discharge tubes are arranged. In the T.R. system shown, a transmitter 2 is directly connected to an antenna 4 and the antenna is connected to a receiver 3 through a pair 8, 10 of waveguide loops. The loops are respectively coupled to the transmitter and receiver waveguides by 3 db. couplers 9, 11. The loops are intercoupled by a directional coupler 7 having a coupling coefficient of unity and having discharge tubes in the coupling apertures. Such a coupler is described in Specification 843,634. The discharge tubes fire when the transmitter is in operation and isolate the loop 10 from the loop 8, the system of loops thereby becoming anti-resonant.