baber/WOPTO huggingface dataset:
Patent GB-1521344-A (GB)
Title: Polyurethanes produced from diaminodiphenyldithioethers
IPC: C08G18/38
Filed: 1976-03-02
Abstract: 1521344 Polyurethanes BAYER AG 2 March 1976 [4 March 1975 18 April 1975] 8257/76 Heading C3R [Also in Division C2] A polyurethane containing structural units of the general formula:- wherein R<1> and R<11>, each represent hydrogen a C1-6 alkyl radical, a C6-15 aryl radical, a C4-12 cycloalkyl radical, halogen, -NO2, -CN, -OR<111> or -COOR<111>, where Roll is a C1-6 alkyl radical, and R represents a linear or branched C1-25 alkylene radical which may optionally contain from 1-12 atoms of N and/or O and/or S in the form of secondary or tertiary amino groups, urea or acid amide groups, ether, urethane or ester groups, thioether, thiourethane or thioester groups, a C4-12 cycloalkylene radical, a C8-15 aralkylene radical, -CH2COCH2-, -CO-CO- or -COCH2CH2CO-, may be prepared by reacting a polyhydroxyl compound having a M.wt. of from 400-10,000, a polyisocyanate and an aromatic diamine of the formula The amino groups are preferably in the ortho, ortho<1> or para, para<1> positions with respect to, the -S-R-S- group. The polyurethanes may be cellular or non-cellular. The polyhydroxyl compounds may be polyesters, polyester-amides, polyethers, polythioethers, polyacetals, polycarbonates or polyamides, many examples of which are given. The polyisocyanates may be aliphatic, cyclo-aliphatic, araliphatic, aromatic or heterocyclic polyisocyanates, examples of which are given. Optional ingredients include foaming agents, e.g. water and/or volatile organic substances; catalysts, e.g. tertiary amines, organotin compounds, silaamines, hexalhydrotriazines, alkali metal hydroxides, phenolates or alcoholates, and tetraalkyl ammonium hydroxides; emulsifiers; foam stabilizers; cell regulators; flame-proofing agents; fillers, plasticizers; fungicides and bacteriocides. The polyurethane may be prepared by the single stage, prepolymer or semi-prepolymer process. Suitable aromatic diamines have the formula where R is -C2H4-O-C2H4-; -(CH2)4-O- (CH2)4-; -C2H4-O-CH2-O-C2H4- -CH2COCH2-; -COCO-; -CH2C6H4- CH2-; -COC2H4CO-; [(CH2)6NHCONCH3]2- (CH2)2; [-(CH2)6NH]2CO; -(CH2)nwhere n = 1-4; -(CH2)2-S-(CH2)2-; and [-(CH2)2OCONH]2(CH2)6. In the Examples polyurethanes are prepared by reacting a prepolymer prepared from a mixture of 2,4- and 2,6-tolylene diisocyanate, or 2,4-tolylene diisocyanate alone, and either a polytetrahydrofuran of M.wt. 1,700 or 2,000, or a polyester of adipic acid, ethylene glycol and butylene glycol (OH number 56), with any one of the following diamines:- 2,21-butylene dithiodianiline; 2,2<1> ethylene dithiodianiline; 2,2<1>-methylene-dithiodianiline; 2,21-xylylene dithiodianine; 4,4<1>- ethylene dithiodianiline; 2,21-diethylene ether dithiodianiline; 2,2<1>-N,N<1>-hexamethylene urea dithiodianiline; and 2,2<1>-acetonylene dithiodianiline. The reacting mixture is introduced into a preheated mould. The casting is subsequently removed from the mould and tempered at elevated temperature.
Patent GB-666214-A (GB)
Title: Improved oil fuels
IPC: C10L1/20
Filed: 1948-03-19
Abstract: A fuel oil composition comprises a heavy fuel oil which has a viscosity at 100 DEG F. of at least 450 seconds Redwood I, and which contains solid carbonaceous matter, and 0.1 to 0.5 per cent by weight of one or more pure or commercially pure oil-soluble homologues of phenol, which may carry one or more substituents. Phenols specified are cresols, nitrocresols, chlorocresols, cresotinic acid, xylenols, nitroxylenols, chloroxylinols, carvacrol and thymol; tricresol is particularly mentioned. Difficulties due to the presence of solid matter in the oil are reduced by the addition of the phenol. Specification 470,072 is referred to.  Reference has been directed by the Comptroller to Specification 576,089.
Patent GB-906828-A (GB)
Title: Fluid control valve actuating device
Inventor: OSBURN RONALD FRANCIS
IPC: F16K31/44
Filed: 1960-03-09
Abstract: 906,828. Valves. BRITISH OXYGEN CO. Ltd. March 9, 1961 [March 9, 1960], No. 8287/60. Class 135. A valve-actuating mechanism comprises an annular pulley 1 rotatable within a housing 2 and threadedly mounted upon a core 11 which is constrained-eg. by a splined engagement 13, 14 with the housing- to move axially to actuate the valve on rotation of the pulley, the reaction on the pulley being taken by a pair of co-operating annular bearing surfaces 21, 22 of anti-friction material such as polytetrafluoroethylene. A pull cord 16 wrapped on the pulley extends out of the housing through a conduit 18. The body 2 is rotatable in a nut 5 adapted to be fixed to the valve body so that the cord 16 can be operated at any angle. The pull cord 16 has a ball at its extremity fixed thereto which occupies a slot in the pulley so that, on operation of the device, the cord becomes detached from the mechanism, rotation of the pulley being restricted to slightly under one complete revolution by a stop. Specification 818,265 is referred to.
Patent GB-1216903-A (GB)
Title: Laser rod for an amplifying chain
IPC: H01S3/02
Filed: 1968-02-20
Abstract: 1,216,903. Lasers. COMPAGNIE GENERALE D'ELECTRICITE. 20 Feb., 1968 [22 Feb., 1967], No. 8288/68. Heading H1C. An optically-pumped solid state laser rod has one end tapered to a point so as to obtain uniform gain throughout the cross-section despite the non-uniform radial penetration of pumping intensity inherent to the arrangement. A 5% neodymium-doped glass rod 1, Fig. 1, which is pumped by a helical flash tube 2, forms one stage of plural cascaded laser amplifiers, one end of the rod being conical. A cylindrical silica casing 3 containing a silicone oil 4, both being transparent to the pumping and laser radiations, is fitted to the pointed end of the rod so as to provide a plane light-emitting face. The casing may alternatively be of undoped glass containing tetrachloroethylene. In a modification, Fig. 2, the pointed end of the laser rod has a curved profile. The arrangement may be used in a laser amplifying chain. A ruby active medium with a sapphire casing may be used.
Patent GB-403611-A (GB)
Title: Improvements in and relating to fluid fuel burning apparatus
Filed: 1932-03-21
Abstract: 403,611. Liquid-fuel furnaces. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Moss, S. A.; 36, Sachem Street, Lynn, Puffer, S. R. ; 28, Prospect Street, Snugus, and Reeves, W. A.; 12, Sutcliffe Road, Lynn, both in Massachusetts, U.S.A.) March 21, 1932, No. 8371. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 21, 1932]. [Class 51 (i).] In a liquid-fuel water-heating furnace 11 having a refractory combustion bed 12 on to which a mixture of fuel and air is directed from a burner 14 at a velocity exceeding that of the propagation of the flame, the fuel and air are supplied in proper proportions for complete combustion by a single blower 15 having an outlet pipe 16 delivering air to the burner and a branch 27 which serves to apply the air pressure to the reservoir 23 and thus force fuel along the pipe 24 to the burner jet 25. The latter is disposed at a slightly higher level than the normal level in the reservoir so that the fuel supply ceases on stopping the blower. The blower is driven by an electric motor 20 which also operates a pump 21 serving to supply fuel from the main tank 22 to the reservoir 23. For heating up the refractory bed 12, there is provided an auxiliary burner 30 fitted with an igniter 36 and supplied with fuel and air through branches 31, 33 from the pipes 16, 24 feeding the main burner. Valves 32, 34 in the branches 31, 33 are connected to be operated simultaneously by an electromagnet 35 which, together with the igniting device 36 and the motor 20, is controlled by an apparatus 38 in conjunction with a thermostat 39 and a flameresponsive safety relay 40. A valve 19 in the inlet 17 to the blower is connected to a crank 43 driven at a very low speed by a small electric motor disposed within the control apparatus 38, the direction of rotation of this motor being controlled by the thermostat 39 so that the supply of fuel and air is increased or decreased as the temperature falls below or rises above a predetermined value.
Patent GB-313227-A (GB)
Title: Improvements in or relating to electrical circuit breakers
IPC: B60L3/06
Filed: 1928-03-19
Abstract: 313,227. Brooks, R., and Associated Electrical Industries, Ltd. March 19, 1928. Master control systems.-A circuit-breaker to control the supply to the motors in a traction system is brought to the closed position by opening (by electromagnetic, means controlled from any point, on the train) a valve 25 which supplies compressed air to a piston rod so that the tappet 12 engages the end 13 of the contact-arm pivoted at 14 and drives it into the closed position where it is retained by the engagement of the armature 19 with the permanently-energized electromagnet 21. When the valve-operating coil is de-energized the supply to the piston is cut off and the exhaust port opened so that the actuating piston returns to its initial position leaving the con. tact-arm free to move rapidly, unimpeded by the mass of the actuating parts, to the off position on overload. The release is effected on overload by a fixed tripping bar which is strap-connected at 22 to the moving contact-member and carries the main current in such a direction as to reduce the flux of the holding magnet and finally cause release of the armature 19. In use, according to the invention in association with a motor controller the reclosure of the circuit-breaker is electrically interlocked with the controller and with an auxiliary series main switch so that the circuit-breaker must be closed and left free to trip unimpeded before the auxiliary switch can be closed. In the form shown in Fig. 3, the operating circuit of the valve coil 36 (under control of the push-button 38) includes contacts 39 on the controller which are closed only when the controller is in the off position. The circuit-breaker in closing closes auxiliary contacts 56 which prepare a closing circuit for the auxiliary switchactuating coil 53 which is completed only when (i) contacts 58 on the controller have been closed (that is, the controller moved from the off position and, in consequence, the valve-operating coil de-energized) and (ii) the piston returns to the initial position closing contacts 57 (and leaving the circuit-breaker free to come back unimpeded).
Patent GB-166213-A (GB)
Title: Improvements in or relating to electro-magnetic devices for use with alternating currents
IPC: H01H47/04
Filed: 1919-04-03
Abstract: 166,213. Switchgear & Cowans, Ltd., Ogley, D. H., and Neep, G. H. April 3, 1919. Electromagnets.-An electromagnet excited by an alternating current for operating electric switches and the like is arranged in series with a non-inductive resistance and is provided with a core or armature which makes direct contact with the pole or poles without the intervention of non-magnetic material. In the arrangement shown in Fig. 2 the armature h is pivoted and comes directly in contact with the poles d' and d<2> from which it is withdrawn by a spring f when the current falls below a certain value. A non- inductive resistance, e.g. a lamp e is arranged in series with the magnet coil a and can be automatically short-circuited when the armature leaves the magnet so that on the current again rising to its normal value the armature may be attracted. For this purpose a switch j is provided, operated by a member k on the armature. In a modification the resistance is short-circuited by hand. Reference has been directed by the Comptroller to Specifications 11429/00, 23831/10, and 28864/12.
Patent GB-1092431-A (GB)
Title: Improvements in and relating to geiger-muller tubes
Inventor: MACKINTOSH IAN WILLIAM
IPC: H01J47/08
Filed: 1964-08-28
Abstract: 1,092,431. Ionization counters; photo-electric detectors. MULLARD Ltd. Nov. 23, 1965 [Aug. 28, 1964], No. 8407/64. Heading H1D. A Geiger-M³ller tube comprises an envelope 3 containing a working gas filling and so constructed that part of the envelope is opaque to radiation at a low energy capable of directly ionizing the gas filling whilst being transparent to radiation at a higher energy incapable of directly ionizing the gas filling, and another part of the envelope forms a window 4 transparent to energy at said low energy, an anode 1 within the envelope, and a cathode formed at least partly by the envelope 3, some only of the cathode consisting of metal 5 of sufficiently high atomic number to provide higher sensitivity to radiation at the lower end of the range of said higher energy than the remainder of the cathode provides. The tube may contain rare gas and a halogen, envelope 3 being of chrome iron and having a tungsten helix 5 around its inner surface for direct emission of electrons caused by higher-energy radiation. The helix 5 has a larger pitch in the region of window portion 4, or separate closely-wound helices are used at each end of envelope 3. The ratio of the length of window portion 4 to the total envelope length may be 1: 7 so that the tube gives a fairly level response to low and higher energy ranges. The thickness of the main part of envelope 3 may be as much as 5 mm., while the window 4 may be as thin as 0À05 mm.
Patent GB-883666-A (GB)
Title: Rotary pumps or motors of the outwardly sliding vane type
Inventor: ADAMS CECIL EDWIN
IPC: F01C21/08
Filed: 1958-03-17
Abstract: 883,666. Rotary pumps or motors. AMERICAN BRAKE SHOE CO. March 17, 1958, No. 8518/58. Class 110 (2). A pump or motor of the outwardly-sliding vane-type is provided with recesses 35, 43 which respectively communicate with the inlet and outlet conduits 38, 41 by means of passages formed in the stator 23, additional passages and recesses 54, 52, 55, 56, 57, 58 being provided as shown for supplying pressure fluid to the undersides of the vanes and the bearings 28, 30. Recesses 51 establish communication between the inlet port 38 and the undersides of the vanes.
Patent GB-164875-A (GB)
Title: Improvements in soles and heels of foot-wear
IPC: A43C13/04
Filed: 1920-12-03
Abstract: 164,875. Cudmore, A. A. Dec. 3, 1920. Protectors, construction of. - Soles, heels, or revoluble pads are loaded before attachment with headed wearing nails 3 the points of which are overturned in clinching so that they re-enter the back of the sole &c., as shown. Reference has been directed by the Comptroller to Specifications 22477/91, 122,728, [Class 17 (ii), Boots and shoes, Construction of], and 139,905.
Patent GB-891677-A (GB)
Title: An agricultural spreader machine attachment
IPC: A01C3/06
Filed: 1960-03-11
Abstract: 891,677. Manure spreaders. JACKSON, R. Feb. 22, 1961 [March 11, 1960], No. 8589/60. Class 6(1). An agricultural spreader of the type comprising a hopper 12 provided with a feed means consisting of bars 14 connected at each end to endless chains 13 and a rotatable spinner 17 is provided with an attachment comprising two resilient sheets 19, 28 arranged so that the bars of the feed means forces a passage between the adjacent longitudinal edges of the sheets which immediately return to their original position. The sheets prevent semi-liquid manure from dropping over the end of the hopper and ensure that it is carried to the spinner 17.
Patent GB-1383813-A (GB)
Title: Polyamideimides
IPC: C08G73/14
Filed: 1972-02-25
Abstract: 1383813 Polyamide-imides DR BECK & CO AG 25 Feb 1972 [2 March 1971] 8753/72 Heading C3R A 2-stage process for manufacturing linear polyamide-imides comprise (1) in a first stage reacting an aromatic or alicyclic tricarboxy reactant with one or more aromatic or alicyclic diamines or a mixture thereof with one or more aromatic alicyclic aminoacids and thereafter (2) reacting the first stage reaction product with one or more aromatic or alicyclic diisocyanates, and is characterized in that: (a) the tricarboxy reactant is present in the first stage in an amount of 2 mols. per mol. of diamine and 1 mol. per mol. of amino acid; (b) the diamine and/or the diisocyanate reactant is a mixture of at least 2 different compounds; (c) the product of (1) is freed from water before reaction (2); and (d) the resulting polyamide-imide contains at least 4 aromatic and/or alicyclic rings for every 3 of the total amide and imide links. 0À1 to 0À4 mol. per mol. of reaction product (1) may be included in the reaction (2). Various reactants and solvents are specified and it is prepared that at least <SP>2</SP>/ 3  of the amines and isocyanates are para-dinuclear aromatic compounds. Reference is made to Specification 1,181,446.
Patent GB-510373-A (GB)
Title: Improvements in motor operated electric switches
IPC: H01H3/26
Filed: 1938-08-02
Abstract: 510,373. Motor-operated switches. JONES, R. Aug. 2, 1938, No. 8870. [Class 38 (v)] Upon the circuit for motor M being completed, solenoids C<1>, in series with the motor, lift armature G' to bring the rack B' into engagement with spindle S whereby the crossbar N raises the spindle B carrying the contact A<1>, to complete the main circuit over contacts A. As the spindle B reaches its final postion, insulated projections E<1> open and close respectively contacts A', A<2> to break the circuit of motor M and solenoids C' so that the rack B' is retracted by springs T and falls until the crossbar rests on stops Y', contacts A<2> completing the circuit for holding magnets C.
Patent GB-125530-A (GB)
Title: Inclinometers for Aircraft.
Inventor: ELLIS JAMES
IPC: G01C9/12
Filed: 1918-05-30
Abstract: 125,530. Ellis, J. May 30, 1918. Clinometers for use on aircraft and stated to be free from centrifugal action comprise a counterbalanced needle 6 'detachably secured to a spindle 7 by a screw 13. The spindle 7 rotates in bearings in a face plate 9 screwed to the case 1 and in an angle standard 8 screwed to the face-plate, and provided with positioning pegs 12. A cylindrical cover 2 is secured to the case by screws 3 and a glass face is held in position by the ring 4. A graduated dial 5 is provided for reading against the needle point.
Patent GB-776819-A (GB)
Title: Improvements in and relating to machines for printing and packaging
Inventor: RIGG ERNEST WILLIAM DUNDAS
IPC: B41F17/24
Filed: 1952-04-08
Abstract: 776,819. Packaging-machines. LOBEN, Ltd. July 8, 1953 [April 8, 1952], No. 8950/52. Class 94(1). A machine for producing a package of the type comprising an open-ended sleeve in which an article, e.g. an electric lamp, is held by a platform which fits within the sleeve and has a central hole through which the base of the article passes, comprises means for feeding platforms in succession through a printing mechanism to a series of movable holders, each holder being adapted to hold a platform securely with its hole over an opening therein, whereby an article may be inserted in the platform and a sleeve fitted over the lamp and platform. A strip of interconnected platforms P is fed intermittently over tables 10 and 15 by a reciprocating pusher 12 carrying fingers 13 and 57 which engage in the holes thereof, and each platform is printed on the underside with particulars of the lamp &c. by a drum 58 which is reciprocated by cranks 61 to press the platforms against a pad 59. The type on the drum is inked by conventional rollers 64. Successive platforms are severed from the strip by a knife 22, secured to an adjustable member 20 reciprocated by a crank 69, and are pressed downwardly by a spring-loaded member 22 also secured to the member 20 so as to be impaled on pins 19 projecting from one of a series of interconnected blocks 17 forming an endless conveyer 16. The blocks are formed with recesses 18 and are interconnected by pivot pins 73, the ends of which are received in notches in two pairs of sprockets 74, 75 mounted on shafts 76, 77, the shaft 77 being rotated intermittently by pawl and ratchet mechanism 88, 89. To ensure that the conveyer remains stationary during the return strokes of the pawl 88, a lever 92 is oscillated by a cam 97 to cause a pin 94 to enter notches in a wheel 91 on the shaft 76. Articles are inserted in the platforms by the operator as the blocks travel along the upper run of the conveyer, and as each block and platform comes to rest at the end of the upper run a collapsed sleeve S is removed from a magazine 29 and erected by a suction head 24 and then lowered over the article and platform. The head 24 is carried by a piston in a cylinder 26 which is mounted on columns 34 for vertical reciprocation under the action of a cam 35 operating through linkage 36, 38, the head being moved towards the magazine by compressed air admitted to the cylinder under the control of a valve 30 operated by a cam 31 and being returned to a position above the conveyer by a spring 28, encircling the piston rod, when the cylinder is exhausted. Suction is applied to the head by a valve 32 operated by a cam 33. The sleeves are erected on the return stroke of the piston by a member 124, Fig. 1 (not shown), carried by an arm 125 on the cylinder 26. The stack of sleeves in the magazine is moved forwardly by endless bands 120 driven by a motor 121. The various cams and cranks are driven in synchronism by a single electric motor through chain and sprocket gearing.
Patent GB-729800-A (GB)
Title: Improvements in or relating to timing devices for use with a potato or the like planter
Inventor: PAYNE LEONARD RIDGES
IPC: A01C9/00
Filed: 1948-12-10
Abstract: 729,800. Potato-planting machines. MASSEY-HARRIS-FERGUSON (SALES), Ltd. Dec. 12, 1949 [Dec. 10, 1948], No. 9000/53. Divided out of 729,731. Class 6 (1). A timing device for use with the -planter shown in Specification 729,731 comprises an arm 38 having a keyhole slot 39 at its forward end for attachment to one of the ridging ploughs forming part of the planter, the rear end of the arm carrying a ground-wheel 43 formed with spaced series of projections 44A, 44B, 44C, which contact a bell-crank lever 48 during rotation and thereby sound a bell 45 at regular intervals. The bell is carried on a bracket 46 which is slidable along a slot 52 in the arm to determine the series of projections to be used. The bell-crank 48 is pivoted on the bracket and carries a roller, such as 49; at each end, one roller being adapted to contact the studs on the wheel and the other to strike the bell 45. The operators sit upon seats on the ridger frame and release the potatoes in time with the bell impacts. Specifications 470,069 and 471,801 also are referred to.
Patent GB-278260-A (GB)
Title: Improved means for supplying liquid fuel to vapour burners
IPC: F23D11/44
Filed: 1927-04-01
Abstract: 278,260. Fetter, J. April 1, 1927. Vaporizing-apparatus.-Burner nozzles o, p are carried by two feed pipes m, n leading respectively from chambers j, k which communicate through valves f, g with a fuel chamber d. The chamber d communicates through a non-return valve e with a chamber below it connected to a liquid fuel reservoir a. The valves f, g engage a lever h so pivoted as to cause one valve to open when the other is closed. The feed pipe n is heated initially by burning methylated spirit in a cup r until vapour issues from the nozzle p. This vapour is then ignited and the flame plays on the feed pipe m thus causing an increased pressure in the chamber j and effecting a closure of the valve f and an opening of the valve g. Vapour then issues from the nozzle o and on this becoming ignited the flame plays on the feed pipe n thus effecting a closure of the valve f and an opening of the valve g. The burner then continues in action the valves f, being opened and closed and the fuel being drawn from the chambers j, k alternately. The burner nozzles are arranged below a domed cover sand are regulable by means of a cock q.