baber/WOPTO huggingface dataset:
Patent GB-880030-A (GB)
Title: Thiocarbamates
Inventor: MCKAY ARTHUR FERGUSON
IPC: C07C333/02
Filed: 1959-01-16
Abstract: The invention comprises compounds of the formula <FORM:0880030/IV (b)/1> wherein R represents, when n is 0, 1, 2, or 3, a phenyl group or a phenyl group substituted with one or more halogen atoms, such as chlorine or fluorine, or alkyl, alkoxy, or nitro groups, or, when n is 1, 2, or 3, R represents a group of general formula <FORM:0880030/IV (b)/2> and the preparation of compounds of the formula <FORM:0880030/IV (b)/3> wherein R1 represents a phenyl group or a phenyl group substituted with one or more halogen atoms or alkyl, alkoxy, or nitro groups, and n=0, 1, 2 or 3, by reacting a phenol R1OH with thiophosgene and reacting the resulting phenyl chlorothioformate with a compound of the formula <FORM:0880030/IV (b)/4> and by reacting a phenol R1OH with a compound of the formula <FORM:0880030/IV (b)/5> and a process for the preparation of a compound of the formula <FORM:0880030/IV (b)/6> where n is 1, 2, or 3, by heating hydroquinone with a compound of general formula <FORM:0880030/IV (b)/7> where n is 1, 2, or 3 in the presence as catalyst of 1-5 moles per cent of triethylamine in a closed vessel at a temperature from 25 degrees to 150 degrees.  Detailed examples are given.  The Provisional Specifications also refer to compounds of the general formula <FORM:0880030/IV (b)/8> in which X and Y can be H, F, Cl, Br, OCH3, OC2H5, NO2 or CN but must not both be H, and of the general formula <FORM:0880030/IV (b)/9> wherein R represents hydrogen or one or more nuclear substituents, e.g. halogen, nitro, cyano, alkyl and alkoxy groups, n is 0 or 1, and Ar represents an aryl group, e.g. a phenyl group or a substituted phenyl group particularly substituted by halogen, alkyl, alkoxy or nitro groups, and the preparation thereof by the methods outlined above.ALSO:Bacteriostatic compositions comprise compounds of the formula <FORM:0880030/VI/1> wherein R represents, when n is 0, 1, 2, or 3, a phenyl group or a phenyl group substituted with one or more halogen atoms, such as chlorine or fluorine, or alkyl, alkoxy, or nitro groups, or, when n is 1, 2, or 3, R represents a group of general formula <FORM:0880030/VI/2> with a carrier.  The Provisional Specifications also refer to compounds of general formula <FORM:0880030/VI/3> in which X and Y can be H, F, Cl, Br, OCH3, OC2H5, NO2, or CN but must not both be H and of the general formula <FORM:0880030/VI/4> wherein R represents hydrogen or one or more nuclear substituents e.g. halogen, nitro, cyano, alkyl and alkoxy groups, n is 0 or 1, and Ar represents an aryl group e.g. a phenyl group or a substituted phenyl group in which the substituents may be halogen, alkyl, alkoxy or nitro groups as active ingredients in the above compositions.  The compositions are used as industrial preservatives, as general disinfectants and as therapeutic topical preparations.
Patent GB-577216-A (GB)
Title: Improvements in or relating to electric circuits for producing currents of sawtooth wave form
IPC: H03K4/39
Filed: 1944-02-01
Abstract: 577,216. Sawtooth generators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 1, 1944, No. 1824. Convention date, Sept. 25,1941. [Class 40 (v)] In a sawtooth current generator, an output valve, feeding the deflecting coil through a path in which the flow of D.C. is prevented, is connected through a high impedance valve to the supply, the anode current of the latter being decreased in response to an increase in current in the deflecting coil, Output tube 11 is supplied from a D.C. source B through a pentode 12, the grid 22 being biassed by the voltage drop over resistance 21. The control grid of tube 11 is fed with sawtooth voltage waveform from generator 13, resulting in a sawtooth current being fed through deflecting coils 10 and blocking condenser 17. An increase in anode current of tube 11 results in increased negative bias on tube 12 thereby decreasing the current passed by tube 12. To ensure operation of tube 12 over linear portion of its characteristic a further biassing resistance 27 and decoupling condenser 28 may be employed. In a modification Fig. 2 (not shown), the output tube is a triode and in order to obtain a sawtooth current waveform, the control grid is fed with a sawtooth voltage plus a pulse lasting for the duration of the sweep.
Patent GB-1492112-A (GB)
Title: Teleprinters
IPC: H04L17/30
Filed: 1975-01-16
Abstract: 1492112 Teleprinter arrangements SIEMENS AG 16 Jan 1975 [18 March 1974] 1859/75 Heading H4P A teleprinter arrangement utilizing a 5 bit code necessitating a level (or case) shift i.e. figures/letters is provided with a memory to store, both on transmission and reception, an indication of previous (print) character case which is compared with that following. If different, a case shift symbol is automatically transmitted, or case shift effected on reception as appropriate. The printer is connected to the memory to provide prior indication of case shift when receiving. It is stated that punched tapes do not therefore need additional symbols where corrections are made, also tapes can be factory punched with carriage return symbols. An interconnected keyboard A, receiver and printer B, and transmitter C have a memory 29 which stores previously transmitted case which is compared at 31 with the next case signal on terminal 2. On commencement of operation, receiver B gives an output on terminal 14 to set a trigger circuit 16 hence through OR 17 a priming input is provided to AND 18, two other inputs from which are connected to outputs 1, 5 of keyboard A. The output from 18 is connected parallely to AND's 19, 20 to control trigger circuits 21, 22. Dependent on case change symbol to be inserted, circuit 22 (figures) or 21 (letters) via OR 24 primes gates 57 to connect terminals 6-10 to transmitter C. From case output 2 gate 20 is connected directly and gate 19 invertedly together with OR 32 hence through gates 33-35 memory 29 receives the previous case signal when it is compared in 31 with the case of a signal ready for transmission; through OR 17 a signal is passed to AND 18 as before. By means of figures/letters shift key outputs 3, 4 a signal can be similarly passed through OR 26 and a one character delay 27 and OR 28 to memory 29 for comparison as above.
Patent GB-805666-A (GB)
Title: Improvements in or relating to engine starters
IPC: F02C7/277
Filed: 1956-01-19
Abstract: 805,666. Engine turning gear. BENDIX AVIATION CORPORATION. Jan. 19, 1956 [March 7, 1955], No. 1881/56. Class 7(5) In an advancing mechanism for the jaw means of an engine starter including a screw shaft driven by power means, a travel nut threadedly engaged upon the screw shaft and operatively connected to the starter jaw means so that the latter is advanced axially by axial movemen of the nut and is adapted to rotate therewith and a device for imposing a drag upon the jaw means as the latter is rotated by the screw shaft, the device includes a heavy member connected to the travel nut by means including helical splines and movable axially relatively to the nut when the latter is initially rotated to engage a fixed member and exert a restraining torque on the nut whereby the latter is caused to move axially along the screw shaft. The starter is particularly for high speed engines such as jet engines. As shown a turbine 2 driven by compressed air supplied through a scroll 4 and nozzles 5 drives a screw member 24 through a pinion 8 gears 16 and annulus 19. The annulus comprises a hollow hub 21 which is connected to the screw member 24 by the slip clutch 20. The jaw member 27 is carried by a spline nut member 26. Suitable means is provided to apply a restraining torque to the spline nut 26. This torque is provided by a thickened heavy ring 44 engaged upon the outer surface of the spline nut by internal threads or helical splines. Initial rotation of the spline nut will cause the heavy ring to move axially to the right. When this happens a conical surface 46 on the ring will engage a complementary surface 47 of another ring 48 fixed to the housing. A restraining torque is communicated to the spline nut 26 whereupon the latter moves axially leftward. As it moves it axially advances the jaw member 27 into positive engagement with the jaws of the associated engine. Completion of the travel of the spline nut to its leftmost position will result in lock ring 52 carried at the right end of the spline nut engaging a shoulder of the ring 44 and moving the latter out of contact with the housing ring 48. As the speed increases with consequent starting of the engine automatic switch means is centrifugally openable to cut off the supply of air to the turbine. Upon disengagement of the starter jaw from the engine jaw the starter jaw is apt to be kicked back against the ring 48. To avoid this a number of plugs 55 which fit loosely in the spline nut 26 will with the increased speed of the starter mechanism in starting the associated engine be thrown out centrifugally to contact the inner cylindrical surface of the ring 44. The resulting friction will prevent the latter from being kicked back during disengagement of the starter jaw from the engine. The spring 39 is described in Specification 791,665 which is referred to.
Patent GB-524061-A (GB)
Title: Improvements in induction type electric supply meters
IPC: G01R11/36
Filed: 1939-01-20
Abstract: 524,061. Supply meters. ENGLISH ELECTRIC CO., Ltd., and TILSTONE, G. Jan. 20, 1939, No. 2082. [Class 37] The quadrature loop 1 of an induction meter is in the form of a hollow rectangle stamped out of flat sheet metal with a U-shaped projection 2, between the limbs of which is a screw and nut 3 which can be adjusted ir position to vary the resistance of the loop. The projection 2 may be in the same plane as the loop or may be bent so that it lies at an angle thereto.
Patent GB-257487-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H43/08
Filed: 1926-01-25
Abstract: 257,487. Franklin, W. H. Jan. 25, 1926. Receiving sets, construction of; thermionic amplifiers and detectors.- A device whereby the components of a wireless set may be readily connected up in different ways to correspond to different circuits, comprises two beds of contacts 6, 2, arranged one above the other, longitudinal rows of the contacts of the upper bed and lateral rows of the contacts of the lower bed being respectively connected together. Selected contacts only of the two beds can engage each other, the selection being determined either by a perforated sheet 12. which lies between the two beds Fig. 2 or which has projections 30, Fig. 6, forcing certain of the contacts 6 into engagement with the corresponding contacts 2. The components of the wireless set are connected to the rows of contacts as shown in Fig. 4 and any component is then connected to any other component by making suitable apertures or projections 30 in the sheet 12. A succession of sheets 12 having differently arranged apertures 30, can be passed successively between the beds of contacts by means of rollers 13, Fig. 2. so that different circuits can be used in quick succession.
Patent GB-596795-A (GB)
Title: Process for the production of hard rubber
IPC: C08J3/24
Filed: 1945-01-29
Abstract: In making hard rubber, a mix consisting of rubber or of rubber-like material, e.g., a copolymer of butadiene and acrylonitrile or styrene, or polymerised b -chlorobutadiene, suitably compounded with vulcanizing ingredients for the formation of hard rubber is vulcanized to the soft rubber stage under conditions precluding penetration of the mix by the medium with which it is surrounded during such vulcanization, before being converted into an ebonite product by heating in a chemically inert fluid surrounding medium, at a temperature sufficiently high for such conversion, under a pressure of at least 1000 lb./sq. in. to inhibit the formation of bubbles of gaseous reaction products.  According to an example, slabs of a calendered mix of GR-S, sulphur, ebonite dust, cotton seed oil and an accelerator, e.g., di-phenylguanidine, are moulded between steam heated platens and there vulcanized for one hour, the steam pressure being 40 lb./sq. in.  The slabs are then transferred in trays to a steam jacketted autoclave and subjected therein to a pressure of nitrogen gas of 3000 lb./sq. in.  Steam is introduced into the jacket to give increase in steam pressure to 100 lb./sq. in. in 2 hrs., the nitrogen pressure rising to 4000 lb./sq. in., and steam pressure in the jacket is maintained at 100 lb./sq. in. for 2 hrs.  Specification 352,829 is referred to.
Patent GB-102369-A (GB)
Title: Method for Tubing and Retubing the Barrels of Fire Arms.
Inventor: SALERNO GIUSEPPE
IPC: B21C37/15
Filed: 1916-02-17
Abstract: 102,369. Salerno, G. Nov. 22, 1915, [Convention date]. Ordnance and small-arms.-Relates to processes for tubing or re-tubing the barrels of firearms with liner tubes having external and internal portions of different diameters. According to the invention, the bore is first enlarged by drilling, or by the removal of a previous tube, to form a bore having cylindrical portions k, l, h, Fig. 1, of different diameters; a lining-tube n is then inserted having external diameters slightly less than the corresponding parts of the barrel bore, and an internal bore of uniform diameter; the tube is next expanded to form a perfect fit by forcing through it a steel rod a, Fig. 4, having an enlarged head b; finally, the chamber is drilled out and the bore rifled.
Patent GB-1357712-A (GB)
Title: Aircraft gas turbine jet engines
IPC: F02C7/047
Filed: 1973-01-17
Abstract: 1357712 Gas turbine engines - de-icing arrangements SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 17 Jan 1973 [27 Jan 1972] 2458/73 Heading F1G [Also in Division F2] The invention relates to a gas turbine jet engine in which a compressor is mounted in overhung manner on a shaft comprising two sections which are held together by a screwed sleeve, the sleeve being secured against rotation by means of a tube mounted within the shaft and serving to convey fluid for de-icing a fairing disposed at the front face of the compressor. The engine shown is a ducted fan engine comprising an LP compressor 1a which is carried by a shaft 7 comprising two sections 7a, 7b, the LP turbine (not shown) being mounted at the downstream end of the shaft; the upstream end of the shaft is supported in a bearing 9, the LP compressor rotor being overhung. The shaft sections 7a, 7b engage by means of splines 14 and are held together by means of a screwed sleeve 15 which is in screwed engagement at 16 with the shaft section 7b and has a shoulder 15a which abuts against a shoulder 17 on the shaft section 7a. A fairing member 11 is disposed at the front face of the compressor being supported on a member 21 which is secured by bolts 26 to the compressor first stage disc, the two members being spaced apart to define a chamber 23 to which de-icing fluid such as air tapped from the engine compressor is supplied through inlet ports 24 and from which it is discharged through outlet ports 25. The air is supplied to the fairing through a duct 18 which extends through the shaft 7, the duct being connected to the member 21 by a connecting piece 18d which is in splined engagement at 18e, 20a with the member 21. The duct 18 is connected at its downstream end to a connector 18a into which a further duct 19 extends. The connector 18a is formed externally with splines 18c which engage splines 15b formed on the internal face of the screwed connector sleeve 15. By this means the screwed connector sleeve 15 is locked against rotational movement.
Patent GB-304698-A (GB)
Title: Improvements in packing cases
IPC: B65D6/00
Filed: 1929-01-24
Abstract: 304,698. La Riboisiere, J. F. P. de. Jan. 24, 1929. A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 25, 1929. Corner joints; lids.-The sides and bottom of a packing case are connected by strips of woven fabric stuck on with adhesive. As shown, strips 1, 2 are stuck on both the inside and outside and the edges 3 of the strips are preferably serrated. The case is made of thin plywood or other wood and the lid may have ribs which engage within the case and reinforce the side walls.
Patent GB-740261-A (GB)
Title: Improvements in and relating to holders for electric lighting tubes
IPC: H01R33/965
Filed: 1953-01-28
Abstract: 740,261. Lampholders. HEYBROEKZELANDER N.V. Jan. 28, 1953 [Feb. 4, 1952], No. 2515/53. Class 38 (1). A watertight holder for tubular fluorescent lamps comprises a plate 12 with integral projections 13, 14 through which are pressed contacts 21, 22 having terminals 15, 16, the plate being attached to the front wall 4 of a connecting box by a pressed-in bolt 17 with a flange 19 on the plate pressing against a resilient ring 18 (e.g. of rubber). Contact springs 23, 24 are mounted on the front of the plate 12, one end of each spring being looped round pegs 25, 26, and the other end abutting a projection 27 on the plate. On insertion of the lamp, the lamp pins engage bent parts 28 of the springs and deflect the latter so that contacts 30 thereon engage contacts 21, 22. A cover 31 fitting closely round, and secured to, the part 12 has merging slots 33 for the insertion of the lamp pins. A rubber sleeve 35 surrounds the holder and part of the lamp. In another embodiment (Fig. 7, not shown) the cover is flat and riveted to the plate, semi-circular flanges merging into the circular flange 19 providing a seal round the rivet holes. In yet another embodiment (Fig. 8), a sleeve 50 with a screwed-in cover 52, a metal ring 49 and a resilient ring 53 are slipped over the lamp, and the lamp pins are then inserted into the part 12 which has helicallyshaped projections 48 so that when the lamp is turned through 90 degrees an edge 51 of the sleeve 50 passes through a groove 46, and a flange 54 on the sleeve 50 is pressed against the resilient disc 18. The cover 52 may be screwed further into the sleeve to further compress the ring 53. Fig. 1 shows holders of the invention mounted on connecting boxes 45, a box 1 containing a sealed switch.
Patent GB-563367-A (GB)
Title: Electric alarm arrangements for clocks
IPC: G04C21/20
Filed: 1943-02-16
Abstract: 563,367. Actuation of switches. OLIVER, G., and OLIVER, B. M. Feb. 16, 1943, No. 2549. [Class 38 (v)] A clock is adapted to serve as an alarm clock by providing on its face a series of hourcontacts 2 co-operating with the hour hand 3 and contacts 4 co-operating with the minute hand 5 to mark the quarter-hours, contacts 2, 4 being connected to sockets 7<1>, 7<11> adapted to receive wanderplugs 17, 14 from the alarm device 10 and source for pro-selecting the alarm-setting. Alternatively, the contacts may be led to a rotary switch device having two adjustable arms moving over circles of contacts, the setting means being preferably assembled on the clock itself. The contacts 2 may be simple studs and the hour hand carry an arcuate wiper, the arrangement in both cases being such that no two contacts 2 are bridged when the minute hand is in an operative position.
Patent GB-231275-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M17/28
Filed: 1924-01-31
Abstract: 231,275. Jennings, E. Jan. 31, 1924. Surface carburettors.-In a carburettor provided with inner and outer containers and an absorbent medium through which the fuel passes, the carburetted air passes through a space which is in communication with the air and is provided with a diaphragm adjustable parallel to itself. The fuel is contained between inner and outer vessels b, a, the vessel b being porous. Air passes through the space k formed between the vessels and the lower side of a diaphragm m down the annular passage g and the carburetted air passes up the inside of a tube n and is mixed in the hood i with additional air which enters on the upper side of the diaphragm m; adjustment of the air supply is obtained by movement of the tube n supporting the diaphragm m by a cam o. In a modification, the space between the vessels 2, 3, Fig. 3, is filled with porous material 7 and the fuel is contained within the inner vessel 3, which is provided with perforated sides. An iris diaphragm 16<1> controls the surface of porous material open to the air, while the movable diaphragm 16 is adjusted. by rack and pinion gearing 17, 19. The rack 17 is formed with a projection 37 which presses on the arm 35 of a valve 34 controlling the supply of fuel.
Patent GB-226693-A (GB)
Title: Improvements in the manufacture of artificial stoneware
IPC: C04B28/36
Filed: 1924-02-01
Abstract: 226,693. Bercott, S. Feb. 1, 1924. Plastic compositions containing sulphur and iron.-Artificial stoneware is produced by mixing sand, sulphur, iron and alabaster in a powdered condition with water, heating the mixture to 120‹ R., and casting it. A typical composition consists of 350 lbs. of iron sand (from the sandblasting of iron &c.), 4 cwts. of sulphur, and 40 ibs. of albaster. A colouring agent, e.g. 18 lbs. of powdered charcoal, may be added.
Patent GB-1124862-A (GB)
Title: Process for preparing glycol esters
IPC: C07C69/16
Filed: 1967-01-18
Abstract: Esters of glycols are prepared by contacting a mono-olefine with an organic monocarboxylic acid solution containing a palladous salt and a nitrate or nitrite of a metal of Group I, II or VIII of the Mendeleef Periodic Table.  Oxygen and nitric or nitrous acid, or a nitrogen oxide may be present and the palladous salt may be a chloride, acetate or nitrate which may be formed in situ by the addition of palladium. The proportions of mono- and di-esters may be varied by adjusting the conditions and byproducts are acetaldehyde, vinyl acetate, ethylidine diacetate. Examples describe the preparation of ethylene and propylene glycol mono- and di-esters.
Patent GB-174645-A (GB)
Title: Apparatus for forming articles of glass
IPC: C03B9/195
Filed: 1920-09-24
Abstract: 174,645. Miller, W. J. Oct. 16, 1919, [Convention date]. Blowing.-A device for transferring the parisons to the finishing moulds in a double-table automatic machine comprises coacting jaws for gripping a parison and means operated by fluid pressure for raising and lowering the jaws and moving them transversely. The transfer mechanism consists of a pair of jaws 204, carried by an arm projecting from a slide 197 which is raised and lowered by a pneumatic cylinder R and is swung round in a horizontal direction by a second cylinder Q. The jaws descend on and grip the parison as it is raised out of the parison mould H, lift it, and then swing it over the finishing- mould I. The slide 197 then descends and a lever 206, striking a. stop, opens the jaws and allows the parison to drop into the mould. The jaws, while still in the lowered positions, are then swung back into position to grip another parison.