baber/WOPTO huggingface dataset:
Patent GB-769285-A (GB)
Title: Process for the production of 4-substituted 1,2-diphenyl-3.5-dioxo-pyrazolidines
IPC: C07D231/36
Filed: 1955-05-17
Abstract: The invention comprises 4-substituted 1 : 2-diphenyl-3:5-dioxopyrazolidines of the general formula <FORM:0769285/IV(b)/1> (wherein R represents a heterocyclic radical and n is 2, 3 or 4), and the preparation thereof by (a) condensing, preferably in the presence of an alkaline condensing agent, a substituted malonic acid diester of the general formula <FORM:0769285/IV(b)/2> (wherein X represents a lower alkyl radical) with hydrazobenzene or a monoacyl derivative thereof from which the acyl group is easily split off; or (b) condensing, preferably in the presence of an acid binding agent, a substituted malonic acid derivative of the general formula <FORM:0769285/IV(b)/3> (wherein Y represents chlorine, bromine or an acyloxy radical) with hydrazobenzene; or (c) first condensing, as in (b), a substituted malonic acid derivative of the general formula <FORM:0769285/IV(b)/4> with hydrazobenzene and then condensing the resulting substituted malonic acid monoester monohydrazide as in (a), followed in each case, if desired, by conversion of the products into their salts with inorganic or organic bases.  The products are useful as antipyretic, antiphlogistic and analgesic agents.  Examples describe the preparation by method (a), using sodium ethoxide as condensing agent, of compounds in which the 4-substituent is g -benzthiazolyl - (2) - mercapto - n - propyl, g  - pyridyl - (2) - mercapto - n - propyl and b  - thienyl-(3) - mercaptoethyl.  Reference is also made to compounds in which the 4-substituent is g -(4-methylthiazolyl - 2 - mercapto) - n - propyl and b  - (2 : 6 - lutidyl - 4 - mercapto) - ethyl, and a list is given of heterocyclic mercaptans (some containing chloro-substituents) from which the starting materials for the process can be prepared.  Starting materials.  Substituted malonic acid diesters of the second general formula above are produced by condensing sodium malonic acid diesters with heterocyclic halogen alkyl-mercapto compounds of the general formula R-S-(CH2)n-Halogen, or by reacting halogen alkyl malonic acid diesters of the general formula <FORM:0769285/IV(b)/5> (wherein n1 is 3 or 4) with alkali metal sals of heterocyclic mercaptans R-SH. Heterocyclic halogen alkyl-mercapto compounds used in the former of these methods are obtainable by reacting the aforesaid alkali metal salts of heterocyclic mercaptans with dihaloalkanes having 2-4 carbon atoms in the molecule (e.g 1 : 2 - dibromoethane, 1 : 3 - dibromopropane, 1 : 4 - dibromobutane or the corresponding chloro-bromo or dichloro compounds), or with the corresponding haloalkanols with subsequent treatment with inorganic halides such as SOCl2 or PBr3.
Patent GB-971010-A (GB)
Title: Improvements in or relating to multiple band-pass filters for h.f. apparatus
IPC: H01P5/00
Filed: 1962-04-12
Abstract: 971,010. Circuit assemblies; filters. HANS KOLBE, and HANS KOHLER, [trading as ANTENNENWERKE HANS KOLBE & CO.]. April 12, 1962 [April 15, 1961], No. 14233/62. Headings H1R and H1W. A high-frequency network comprising bandpass filters in parallel for combining two or more signals, is provided with inductances in the form of lamellar members 12, 13. The members form part of a conducting base-plate 3 and are formed either by punching the plate or by etching portions of the conductive coating of an insulating base-plate. The capacitors are formed by printing electrodes on either side of a dielectric member 18, some of these electrodes being connected to the ends of the inductive members 12, 13. The network shown is provided also with a filter in which the inductances are in the form of loops 4, 5. The inner conductors of connecting cables 7, 10, 15 are connected to terminals 6, 9, 14 and the outer conductors are conductively clipped to the base plate.
Patent GB-1488503-A (GB)
Title: Headlamp tilting system in a motor vehicle
IPC: B60Q1/105
Filed: 1974-03-30
Abstract: 1488503 Adjusting vehicle headlamps LUCAS ELECTRICAL Ltd 17 March 1975 [30 March 1974] 14233/74 Heading F4R In an arrangement for tilting vehicle headlamps about horizontal axes in response to changes in attitude of a suspended part of the vehicle, the mechanical output 26 of transducer 25 responding to such changers acts on an articulated rod 18, slidably mounted in bushings 23, to effect axial movement transverse to the vehicle body, the end portions of rod 18 being connected by ball-and-socket joints 19 to cranked levers 15 hinged at 17, the other ends of levers 15 being linked to the headlamps to effect the tilting.
Patent GB-1484986-A (GB)
Title: Salts of the dimethylaminoethyl ester of p-chloro-phenoxy acetic acid
IPC: A61K31/22
Filed: 1976-04-08
Abstract: Novel salts of dimethylaminoethyl p-chlorophenoxyacetate of the general formula I <IMAGE> in which R represents a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxy group, are more stable than free esters and taste pleasant in contrast to the free esters. The novel salts are prepared by reaction of dimethylaminoethyl p-chlorophenoxyacetate with the appropriate 2-(p-hydroxybenzoyl)benzoic acid. The novel salts can be used as psychopharmaceuticals.
Patent GB-1466013-A (GB)
Title: Multiple chamber chemiluminescent analyzer
IPC: G01N31/00
Filed: 1975-04-08
Abstract: 1466013 Detecting atmospheric polution THERMO-ELECTRON CORP 8 April 1975 [17 May 1974] 14401/75 Heading G1A In a device for detecting atmospheric polution &c. in a sample gas 28 by chemi-luminescence, the sample is directed via a valve 48 along two paths 30, 32. One path 30 contains a "NO x  to NO" converter, NO x  is a mixture of NO and NO 2 ; NO 2  does not readily react with ozone to produce chemi-luminescence. The resulting two gas streams are then passed via concentric nozzles 36, 38 with ozone from a generator 24 into reaction chambers 16 and 18. The chambers have reflective internal surfaces 17, 19 and optical filters 42. The chemiluminescence is alternatively viewed by a photomultiplier 14 positioned behind a chopper 44, or an electrostatic or electromagnetic beam diverter, which only allows radiation from one chamber at a time to reach the photo-multiplier 14. The time related multi-plexed signal output of the photomultiplier is fed to a signal processor 46 which demultiplexes the signal to provide read-out signals proportional to the NO, NO X , NO 2  concentration. It is suggested that the apparatus may be converted to detect other atmospheric impurities.
Patent GB-543989-A (GB)
Title: Improvement in brake mechanism
IPC: B60T13/68
Filed: 1940-09-20
Abstract: 543,989. Valves. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Sept. 20, 1940, No. 14404. Convention date, Nov. 1, 1939. [Class 135] [Also in Groups XXXIV and XXXVII] A fluid motor control system with means for controlling the flow of fluid pressure to the motor comprises a self-lapping valve mechanism having a pair of chambers subjected to differential pressure during the brake application or release which differential pressure is utilized to operate auxiliary valve mechanism, capable for example of use in expediting the supply and exhaust of fluid pressure to motors for actuating vehicle brakes. In the example shown in the Figure, a valve 4 of the general type described in Specification 488,208 having intake and exhaust valves, 14, 15a connected by a stem 16 and a valve-operating element 17 secured to a flexible diaphragm 18 and which has the seat for the exhaust valve at its lower end comprises an outlet chamber 6 connected to a fluid motor 7 and provided with a choked passage 21 in its wall leading into a chamber 19 below the diaphragm, the differential pressure in the chambers 6 and 19 caused when the brake is applied or released being employed to actuate an electric switch 30 to operate either an electromagnetically controlled valve 46 to connect the fluid motor 7 directly to the supply cylinder 10 or the valve 51a to connect the motor 7 to exhaust. The switch 30 comprises a chamber divided into two parts by a flexible diaphragm carrying members 37, 40 for closing the circuits of electromagnets for operating the valves 46, 51a under the differential pressure from chambers 6, 19 communicated to the two chambers of the switch.
Patent GB-796456-A (GB)
Title: Hydroxyalkylcyclopolysiloxanes
IPC: C08G77/16
Filed: 1956-05-09
Abstract: A lubricant comprises octamethylcyclotetrasiloxane and, as a polymerization inhibitor, a minor amount of hydroxymethylheptamethylcyclotetrasiloxane.  Specification 631,049 is referred to.ALSO:The invention comprises hydroxyalkylheptamethyltetrasiloxanes of the formula <FORM:0796456/IV (a)/1> where R is a -(CH2)n-radical, where n is 1 to 4, or the radical <FORM:0796456/IV (a)/2> where R1 is hydrogen or alkyl of 1 to 4 carbon atoms and R11 is alkyl of 1 to 4 carbon atoms.  Examples of ROH are hydroxymethyl, b -hydroxyethyl, b - and o -hydroxypropyl, b - and o  - hydroxybutyl, b  - methyl - b  - hydroxypropyl and b -butyl-b -hydroxypentyl.  The compounds may be prepared from the Grignard reagent of chloromethylheptamethyl cyclotetrasiloxane.  The hydroxymethyl compound is prepared by oxidizing this reagent with oxygen and hydrolysing the resulting product.  The b -hydroxy-ethyl compound is prepared by reacting formaldehyde with the reagent and hydrolysing.  For higher omega-hydroxy compounds, the formaldehyde is replaced by an epoxide, e.g. ethylene or 1,2-propylene oxide.  If the OH is to be attached to a secondary carbon atom, a higher aldehyde is substituted for the formaldehyde.  The reaction of a ketone with the reagent results in the hydroxy group being attached to a tertiary carbon atom.  The hydroxymethyl compound is useful as a polymerization inhibitor for octamethylcyclotetrasiloxane and thus finds a use in hydraulic fluids and lubricants. Hydroxymethyl- and b -hydroxyethyl - heptamethylcyclotetrasiloxanes may be polymerized alone with the usual catalysts, e.g. KOH, CsOH, ferric chloride, fuming sulphuric acid, tetramethyl ammonium hydroxide and tetra-n-butyl phosphonium hydroxide, to form gels.  The b -hydroxyethyl compound is also a useful cross-linking agent for cyclic siloxanes, particularly octamethylcyclotetrasiloxane, with which, in minor amounts and in the presence of a catalyst, it forms a cross-linked gum which may contain a carbon black filler.  These gums may be used for potting electrical apparatus.  Specification 631,049 is referred to.
Patent GB-557031-A (GB)
Title: Power-operated loading gear for vehicles
IPC: B66C23/36
Filed: 1942-10-19
Abstract: 557,031. Jib cranes. THWAITES, L. B. Oct. 19, 1942, Nos. 14584 and 16154. [Class 78 (iv)] A slueing jib crane and its winch bare mounted on a trailer vehicle a adapted to be connected to a motor vehicle or tractor having a power take-off from which the winch is driven. In the construction shown the winch b is driven through a clutch i, shaft d, gearing e, and a universally-jointed shaft f coupled to the power take-off (not shown) of the tractor. The clutch is controlled by means of a lever k and a rope k<SP>1</SP>, so that one man can handle the load hook h<SP>1</SP> and operate the clutch, a pull on the rope k<SP>1</SP> causing the clutch to be engaged to raise the rope. The jib c slues about a post m and can be locked, when the trailer is being towed, by means of a pin t locking together a fixed bracket o and a plate u swivelling with the jib.
Patent GB-1246577-A (GB)
Title: Hygienic cleaner for lavatory use
Inventor: JORDAN GEORGE GADSBY
IPC: E03D9/08
Filed: 1969-02-27
Abstract: 1,246,577. Closet attachment. G. G. JORDAN. 1 Aug., 1969 [27 Feb., 1969], No. 14602/ 69. Heading E1C. Body cleaning apparatus consists of the combination of a tubular cranked handle B and a tube C which can slide longitudinally within the handle and which carries a cleaning member D, e.g. a foam rubber block, the combination being attached to a lavatory basin using guide blocks F in which the handle can rotate. In the embodiment, the block D has a central hole and a lever embedded in the block and extending across the hole. The lever co-operates with slots in the handle and in the tube to locate the block on the tube where it can be moved longitudinally with respect to the handle. Other spacing blocks G and H are also provided. <SP>:</SP>
Patent GB-743686-A (GB)
Title: Improvements in or relating to electric arc welding
Inventor: PRIDMORE ROYSTON WALTER
IPC: B23K9/12
Filed: 1953-05-26
Abstract: 743,686. Control of A.C. motors. BRITISH OXYGEN CO., Ltd. May 14, 1954 [May 26. 1953], No. 14650/53. Class 38(3) [Also in Group XXII] In direct current electric arc welding, e.g. inert gas shielded welding, in which a consumable wire electrode is fed by an alternating current motor, overruning of the feed motor is reduced by applying a direct current voltage to the field windings thereof for a short time e.g. 1 or 2 seconds, after interruption of the alternating current supply. The field windings act as an electromagnet to brake the motor. A 115 volt A.C. supply is connected across the motor 12 and supplies a relay 13 directly and a relay 14 through a resistance 15 and a rectifier 16. A relay 18 is supplied from a separate A.C. source through a normally closed contact 19 operated by relay 13 and a normally open contact 20 operated by relay 14. The relay 18 operates a normally closed contact 21 in the motor supply and normally open contacts 22, 23 in the supply from the D.C. generator or other welding current source to the field 11 of the motor 12. In operation the 115 volt A.C. supply is switched on to operate the motor and to energize the relay 13, and sluggishly, because of a large condenser 17 connected across it, the relay 14. The contact 19 is opened and ' contact 20 is closed, relay 18 remaining unenergized. When the 115 volt supply is interrupted relay 13 de-energizes and contact 19 closes but contact 20 remains closed since the relay 14 does not at once de-energize due to the charge in condenser 17. The relay 18 is energized to open contact 21 and close contacts 22, 23 to supply D C. to the field 11 to brake the motor. When the condenser 17 is discharged the contacts return to normal position. To maintain the D.C. field supply at or below a low value, a relay 26, Fig. 2, is connected across the source, to be energized when a predetermined voltage is exceeded, to open its normally closed contact 27 to insert resistance 28 in series with the source. The normally closed contact 29 is opened to insert resistance 30 in series with the relay to allow it to drop out at a predetermined minimum voltage.
Patent GB-687503-A (GB)
Title: Improved textile drawing mechanism
IPC: D01H5/56
Filed: 1950-06-12
Abstract: 687,503. Textile drawing mechanism. ZELLWOLLE-LEHRSPINNEREI GES. June 12, 1950 [Feb. 17, 1950], No. 14658/50. Class 120(ii) A weighing saddle for the upper rollers of a double-apron drawing device is guided by means mounted on the deflecting rail for the lower apron in such manner that the saddle is maintained parallel to the roller axes. The guiding means may consist of a U-shaped member 10 fixed to the deflecting rail 12 by a screw 11 and located by lugs 13 integral with the member 10. One leg 21 of the guiding means has ledges 22, on which the walls of the pressure saddle 9 rest when the front pressure roll 6 is removed. The other leg 14 of the guiding means has two forked ends 15 which extend up the outer sides of the saddle 9 and have inwardly projecting ledges with rear outer surfaces exactly parallel to the deflecting rail 12 and parallel to the axis of the bottom rollers 1, 5. These ledges enter into a slot 17 in the saddle 9 and bear against the rear wall of the slot, which is also aligned so that the axes of the top rollers will be parallel to those of the bottom rollers
Patent GB-143929-A (GB)
Title: Improvements in or relating to the rectification of high tension alternating currents
IPC: H02M3/28
Filed: 1920-05-29
Abstract: 143,929. Soc. Anon. des Etablissements H. Pilon. April 9, 1919, [Convention date]. Vacuum apparatus, arrangements of.-In rectifying high-tension alternating current to high-tension continuous current by means of thermionic valves, the valve c, Fig. 2, is placed at the midpoint of the transformer secondary b, which is at zero potential instead of being connected at one end of the secondary. The filament is heated by a small coil f acting as a secondary to the main transformer primary a. Three electrode valves may be used for the rectification. The Specification as open to inspection under Sect. 91 (3) (a) also describes an arrangement in which both half waves of the alternating current are used; two valves c<1>, c<2>, Fig. 3 (Cancelled), are connected to one end of the secondary b, two condensers g, g' being connected across the two valves. The other end of the secondary is connected between the two condensers. The alternate discharge of the condensers supplies the continuous current in the leads i, i<1>. For wireless telegraphy, the condensers g, g<1> could be used in the oscillation circuit by arranging a spark gap and self-induction coil between the leads i and i<1>, or by combining this connexion with plistrons for obtaining a un-damped oscillating current. This subject-matter does not appear in the Specification as accepted.
Patent GB-661349-A (GB)
Title: Improvements in and relating to holders for electron valves
IPC: H01R33/76
Filed: 1948-06-04
Abstract: 661,349. Holders for discharge tubes. CINCH MANUFACTURING CORPORATION. June 4, 1948 [June 7, 1947], No. 14799/50. Divided out of 661,279. Class 38 (i). A valve holder comprises a body 1 having apertures 4 which merge into bores 5 containing prong-engaging contacts 6 of the kind described in Specification 661,352, and some bores are provided with slots 11 having contact-strips 12 of which the portions 17 extend out of the slots to engage contacts 6 or a condenser surrounding a contact and the other portions 14 project through apertures 15 aligned with the slots 11 from the body to extend outwardly thereof parallel to the bore so that the strip ends 14 are engaged by a conducting mounting-member 16 surrounding the body. The slots are provided with axially extending grooves into which the wings 13 on the contact strips 12 are fitted and the strip portions 17 are bent at an angle to the strip axis. Tubular condensers may be inserted in the bores so that their inner conducting surfaces surround the contacts 6 when the strip portions 17 contact the outer condenser conducting surfaces and the strip portion 14 may extend from the body without engaging the member 16, Figs. 4, 5 (not shown).
Patent GB-554127-A (GB)
Title: Improvements in and relating to the production of hydrofluoric acid and other gaseous fluorine compounds from fluorspar
IPC: C01B7/19
Filed: 1941-11-18
Abstract: 554,127. Fluorine compounds. SIEGEL, W. Nov. 18 1941, No. 14819. [Class 1 (ii)] Hydrofluoric acid and other gaseous fluorine compounds are obtained by mixing fluorspar with calcium sulphate of sandy or gravelly consistency, agitating and heating the mixture and simultaneously or subsequently introducing sulphuric acid. The amount of calcium sulphate is always substantially greater than the amount of fluorspar and sulphuric acid. In order to obtain hydrofluoric acid free from hydrofluorsilicic acid from fluorspar containing silica a quantity of sulphuric acid is added to the mixture less than is equivalent to the fluorspar and the silica is then all volatilized in the form of silico-fluorine compounds; the remainder of the sulphuric acid is then added and the temperature raised to cause evolution of hydrofluoric acid.
Patent GB-960770-A (GB)
Title: Improvements relating to mangling machines
Inventor: WILFORD ERNEST
IPC: D21G1/00
Filed: 1962-04-17
Abstract: 960,770. Rolling machines. BRADFORD DYERS' ASSOCIATION Ltd. May 3, 1963 [April 17, 1962], No. 14879/62. Heading B5A. [Also in Division D1] A mangle has at least two rollers 3, 4 on shafts which are carried in bearings 9, 10, 11, 12 at the ends of the rollers, one roller being urged towards the other by means which act on the bearings, and the shafts have cantilever extensions 17, 18, 22, 23 which project beyond the bearings, the extension 17, 18 being fitted with a wheel having a pneumatic tyre 20, 21, the periphery of which exerts a force on the other extensions, this force being variable by adjusting the air pressure within the tyre. Preferably the extensions 22, 23 have drums 24, 25 rotatably mounted thereon, for contact with the respective tyres. The roller bearings are mounted in end frames 1, 2 the upper bearings being fixed and the lower ones slightly movable and acted upon by pneumatic rams 15, 16 through piston rods 13, 14. The upper roller 3 is driven by worm gearing 27 the worm of which is driven through a pneumatic tyre 29 from wheel 30 which in turn is driven by an electric motor (not shown). In operation the required loading is exerted by pneumatic rams 15, 16 and the air pressure in tyres 20, 21 is adjusted so as to even out the pressure distribution along the length of the rollers. In an embodiment having three rollers, wheels fitted with pneumatic tyres are fitted on the extensions of the two outside rollers whilst a rotatable drum is fitted on the extension of the middle roller. Specification 916,796 is referred to.
Patent GB-397985-A (GB)
Title: Improvements in or relating to tropical helmets or other head coverings
IPC: A42C5/04
Filed: 1932-05-25
Abstract: 397,985. Hats. CROWDEN, G. P., 7, Heather Walk, Edgware, Middlesex. May 25, 1932, No. 14895. [Class 63.] A helmet, silk hat, single or double felt hat, straw hat, or other like head-covering is provided with a fixed lining 2 of polished metal foil or other bright metallic material, and a drop lining 3 which is spaced from the interior of the helmet and from the wearer's head. The drop lining 3 consists of fabric or like material provided on each side with a surface of bright metallic surface, such as metal foil, and is secured to the helmet crown by a ventilater 8 and at its lower edge 9 by the fabric lining 10 of the helmet brim.
Patent GB-558608-A (GB)
Title: A device for use in the sharpening of razor blades
IPC: B24D15/10
Filed: 1942-10-26
Abstract: 558,608. Razor-blade sharpeners. McGLOIN F. J. Oct. 26, 1942, Nos. 14989 and 16787. [Class 60] A device for sharpening blades against a curved surface comprises a rigid base a of greater width than the blade, and having a raised flat platform b provided with studs b<SP>2</SP> for positioning the blade, the width of the platform being less than that of the blade. The back of the device has a rib or depression arranged obliquely to the centre line.
Patent GB-463152-A (GB)
Title: Improvements in the manufacture of patterned fabrics on circular knitting machines which are adapted to produce interlock fabrics and in means therefor
IPC: D04B9/06
Filed: 1936-05-28
Abstract: 463,152. Knitting - machines ; knitted fabrics. BLACKBURN & SONS, Ltd., G., and JARVIS, F. J. May 28, 1936, No. 15041. [Class 74 (ii)] Each course of a patterned interlock fabric is knitted from four threads, alternate cylinder needle wales in the pattern from one thread d, the other alternate cylinder needle wales of the pattern from a second thread c, alternate cylinder needle wales in the ground from a third thread b and the other cylinder needle wales in the ground from a fourth thread a, each at a separate thread feeder, while alternate threads in the four which form the patterned face are knitted on alternate rib needles G and the remainder on the other rib needles, there being twice as many courses knitted in the rib needle wales as in the cylinder needle wales. A device A is fitted which can make a selection from alternate cylinder needles D and cause such selected needles to tuck or to clear their loops for patterning purposes. The ground and pattern threads are of different colours, and the two ground threads and/or the two pattern threads may also be of different colours. The machine may have feeders and selectors in multiples of four.