baber/WOPTO huggingface dataset:
Patent GB-933365-A (GB)
Title: Production of haloalkyltin(iv) halides
Inventor: POLSTER RUDOLF
IPC: C07F7/22
Filed: 1961-10-03
Abstract: The invention comprises organotin compounds of formula <FORM:0933365/IV(a)/1> in which R1 is a C1-C4 radical, X is halogen, and when R3 is halogen R2 is <FORM:0933365/IV(a)/2> and when R2 and R3 are taken together they form the radical <FORM:0933365/IV(a)/3> The invention also comprises organotin compounds of formula <FORM:0933365/IV(a)/4> in which R1 is a C1-C4 radical.  They may be prepared by reacting a 3-R1-3methyl-dipentadiene-1-4 with an aluminium compound of formula AlY2Y1 where Y is C2-C4 alkyl and Y1 is C2-C4 alkyl or hydrogen, and reacting the product with a tin tetrahalide to give a compound of formula B, which in its turn is reacted with a halogen to give compounds of general formula A. Preferred tin tetrahalides are the tetrachloride and the tetrabromide, and the reaction is carried out between 0 and 160 DEG C. preferably in the presence of benzene toluene or xylene.  Ethers, tertiary amines or alkali metal halides may be added to complex with the aluminium halide produced.  The product, a 3,9-dimethyl-6-stanna-spiro-[5,5]-undecane compound (formula B) may be distilled off under vacuum.  Specified compounds of the formula are 3,9-tetramethyl-6-stanna-spiro[5,5]undecane and 3,9-dimethyl- 3,9-diethyl- 6-stannaspiro[5,5] undecane.  Reaction with halogen (preferably chlorine, bromine and iodine) may be carried out by adding the halogen to the 6-stanna-spiro[5,5]-undecane compound at a temperature between -70 DEG C. and 100 DEG C., preferably in the presence of an inert solvent, e.g. chloroform, carbon tetrachloride or ethyl acetate. The halogen may be entrained in a carrier gas, e.g. nitrogen, carbon dioxide or argon.  Using the tin compound and halogen in the molar ratio 1 : 1, the product is of formula: <FORM:0933365/IV(a)/5> [1-halo- 1-(31-R1-31- methyl- 51 -halopentyl)-4-R1-4-methyl-stannacyclohexane] and in the molar ratio 1:2, of formula:  <FORM:0933365/IV(a)/6> [bis(3-R1-3-methyl-5-halopentyl) tin dihalide].  The products may be used as fungicides (see Group VI).  Specification 933,364 is referred to.ALSO:Fungicidal compositions comprise talc and as an active ingredient an organotin compound of formula <FORM:0933365/VI/1> in which R1 is a C1-C4 radical, X is halogen, and when R3 is halogen R2 is <FORM:0933365/VI/2> and when R2 and R3 are taken together they form the radical <FORM:0933365/VI/3> Specified organotin compounds comprise 1-bromo - 1 - (31 - dimethyl - 51 - bromopentyl) 4 - dimethyl - stannacyclohexane:  <FORM:0933365/VI/4> the corresponding iodo-compound, and bis-(3-dimethyl-5-bromopentyl) tin dibromide <FORM:0933365/VI/5>
Patent GB-1482780-A (GB)
Title: Radioactive waste disposal process
IPC: G21F9/14
Filed: 1974-08-13
Abstract: 1482780 Processing radioactive waste AEROJET-GENERAL CORP 13 August 1974 35656/74 Heading G6R Dilute solutions of radioactive waste are evaporated to the form of solid particles which are introduced into a container together with a solidifying agent which sets to form a solid body suitable for storage; the solid particles have a bulk volume equal to the capacity of the container. Evaporation of the solution may take place in a fluidized bed apparatus. The solidifying agent may be a liquefied mixture of polyethylene and paraffin wax or a mixture of styrene copolymer and polyester resin. The particulate solids may be compressed, sintered, or fused before contact with the solidifying agent. In the process described, the gas phase leaving the fluidized bed is passed to a dust separator and a gas scrubbing system. The liquid waste treated may arise from the regeneration or back-washing of ion exchange and filter material used for removing radioactive contamination from primary water coolant of a light water nuclear reactor.
Patent GB-990534-A (GB)
Title: Improvements in systems for reproducing signals recorded on magnetic medium
IPC: H04N5/911
Filed: 1962-09-20
Abstract: 990,534. Television recorders; playback processes. SONY CORPORATION. Sept. 20, 1962 [Sept. 22, 1961], No. 25855/62. Heading G5R. Where television vertical flanking signals and other signals are separately recorded on tape on two magnetic oblique tracks A and B (Fig. 1), such as described in Specification 959,623, magnetic playback heads of different sensitivity (or having amplifier circuits of different sensitivity) are used for each track so that when the signals are later combined, the level of one of the played back signals is substantially different from the other. The amplitude of the vertical blanking signal is preferably reduced to between 1/2 and 1/10 of the other signals, to eliminate beats in positions where the signals overlap, (waveforms, Fig. 2, not shown).
Patent GB-1085647-A (GB)
Title: Photographic processing solutions
Inventor: BARD CHARLETON CORDERY
IPC: G03C7/413
Filed: 1964-09-02
Abstract: N-ethyl methane sulphonamide is prepared by reacting methane sulphonyl chloride with ethylamine. N - (b -Hydroxyethyl)methane sulphonamide is prepared similarly.  p-Carboxy-benzene sulphonamide is prepared by reacting p-cyanobenzene sulphonyl chloride with ammonia and hydrolysing.  The p-cyanobenzene sulphonyl chloride is prepared by reacting cyanobenzene with sulphuryl chloride.
Patent GB-1526953-A (GB)
Title: One-coat adhesive systems
IPC: C09J175/04
Filed: 1975-09-01
Abstract: An adhesive having an improved shelf life contains the following constituents: from 2.5 to 100 parts by weight of at least one isocyanatosilane of the formula <IMAGE> in which R<1> is a monovalent, aliphatic, cycloaliphatic or aromatic radical having 1 to 20 carbon atoms, R<2> is a monovalent, aliphatic, cycloaliphatic or aromatic radical having 1 to 8 carbon atoms, a is zero or 1, and Z is a divalent organic radical which is bonded to the silicon atom via a carbon-silicon bond, and from 5 to 200 parts by weight of an aromatic nitroso compound. The adhesive may additionally contain film-forming additives and inert fillers.
Patent GB-455411-A (GB)
Title: Improvements in or relating to methods of and devices for cooling dental tools, such as drills or the like
IPC: A61C1/05
Filed: 1935-12-30
Abstract: 455,411. Dental hand - pieces. ROOS, W., 16, Leonhardstrasse, Basle, Switzerland. Dec. 30, 1935, Nos. 35989 and 35990. Convention dates, Dec. 31, 1934 and Dec. 13, 1935. [Class 81 (ii)] Dental tools are strongly cooled, so as indirectly to cool the tooth operated on, by means of compressed or liquid carbon dioxide which is allowed to expand in a chamber surrounding the shank of the tool within a dental hand-piece. In the construction shown in Figs. 1 and la a hand-piece, otherwise of known form, is connected to a pipe 3 supplying the compressed or liquefied gas and is formed with a conduit 1a leading to a space 8 in an insulating plug 6 surrounding the shank of the drill 9. A tube 1b of insulating material discharges the expanded gas. The plug 6 is capable of limited rotation so as to serve as a valve. An insulating sheath 13 surrounds the usual chuck member 12. Similar provisions for cooling may be applied to an angle handpiece. In a modification, Figs. 7 and 7a, the drill shank 9 is not reduced in diameter towards the cutting head but is tapered at 9a to engage frictionally in a corresponding bore in the driving element 15 formed of insulating material. The drill may be released by movement of a pin 16 passing through the element 15 and spindle 17. The pin 16 is actuated by a member 18 working in a slot in the spindle 17 and carrying a sleeve 19 which is accessible through slots in the casing of the handpiece or that it may be slid by hand along the spindle.
Patent GB-873707-A (GB)
Title: Improvements in or relating to conveying and agitating mechanisms
Inventor: CARRICK GORDON STEWART
IPC: A23C3/027
Filed: 1958-11-10
Abstract: 873,707. Conveyers. MITCHELL ENGINEERING Ltd. Oct. 30, 1959 [Nov. 10, 1958], No. 6031/58. Class 78 (1). In apparatus for conveying and agitating cylindrical containers 4 in sterilizing or preserving equipment comprising one or more helical runways 2, 3 disposed within a casing 1 along which the containers 4 roll and a rotor device for mechanically propelling and controlling the movement of the containers, the rotor comprises a series of bar-like members 8, 9 disposed around the circumference of a circle in spaced parallel relationship and extending through a gap 5 or 6 in each helical runway. Each runway comprises a pair of spaced-apart oppositely disposed rail members. A spring-controlled arm directs the containers in succession to a rotary compartmented discharge valve.
Patent GB-1519601-A (GB)
Title: Dehydrogenation catalysts
IPC: C07C5/56
Filed: 1975-09-02
Abstract: 1519601 Dehydrogenation catalysts PETRO TEX CHEMICAL CORP 2 Sept 1975 [3 Sept 1974] 36043/75 Heading BIE [Also in Division C5] Catalysts for the dehydrogenation of organic compounds in the presence of oxygen comprise a preformed zinc ferrite composition of empirical formula Zn x Fe y O z , wherein x=0.1-2, y=0.3-12 and z=3-18, which has been modified by the addtion of zinc oxide or another zinc compound in an amount of 0.1-25 wt.% based on the weight of the preformed zinc ferrite composition. The use of the catalyst to dehydrogenate butene-2 to butadiene is described.
Patent GB-947350-A (GB)
Title: Improvements in or relating to stock supply means for paper making machines
IPC: D21F1/02
Filed: 1961-10-06
Abstract: 947,350. Paper-making machines. DOMINION ENGINEERING WORKS Ltd. Oct. 6, 1961 [Oct. 7, 1960], No. 36073/61. Heading D2A. Apparatus similar to that described in Specification 841, 427 is provided with hollow radial spokes 20 for discharging stock from a rotary hub or duct 17 into a casing 1 having a tangential outlet 3 forming a slice. Stock is fed axially to the duct 17 at a rate greater than the rate of discharge through outlet 3, the excess passing out of the casing 1 through an annular weir. Pressure is maintained at such a level in a stationary duct supplying the rotary duct 17 that there is leakage of stock at the gap between the two ducts; this arrangement is stated to preclude the admission of air at this gap.
Patent GB-361633-A (GB)
Title: Improvements in or relating to stapling machines
IPC: B25C5/08
Filed: 1930-12-01
Abstract: 361,633. Stapling-machines. VICKERS-ARMSTRONGS, Ltd., Vickers House, Broadway, Westminster, and NASMITH, J. I., 12, Glenshiel Road, Eltham, London. Dec. 1, 1930, No. 36217. [Class 89 (iii).] In a stapling-machine comprising a two-armed wire-feed lever 14 that is oscillated by a revolving cam 11, the latter also operates the driver 12 by a crank link 13, and is secured in front of, or is integral with, a cam plate 7 having a cam path 8 for operating the former 10. By this arrangement, the revolving cam and the two arms of the feed lever lie and move in the same plane as the driver and former, and the cam path 8 for operating the former is entirely exterior to the periphery of the feed cam 11.
Patent GB-170521-A (GB)
Title: Improvements in or relating to trays or containers
IPC: G11B33/04
Filed: 1920-12-24
Abstract: 170,521. Jones, A. J. Dec. 24, 1920. Packing gramoph ne record, documents. -A tray for holding a gramophone record or documents, &c., comprises a bottom having three framed edges, the open edge being provided with a hinged flap e capable of being folded inwardly over the record, &c. A detachable flanged cover i is provided, which when inverted and turned through a right angle as shown serves as an inner tray for holding the record. The frames are provided with dowel pins or like means p adapted to engage holes q in the covers when the latter are employed as such, or to take into holes on the underside of a second frame, thus enabling the trays to be stacked superposed one upon another.
Patent GB-853900-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: F16B19/00
Filed: 1957-11-27
Abstract: 853,900. Clips. F.T. PRODUCTS Ltd. Nov. 22, 1957 [Nov. 27; 1956; March 28, 1957], Nos. 36284/56 and 10191/57. Class 44. A fastener comprises a single strip of spring material bent about lines transverse to the length of the strip into the form of a loop open at one end and having two limbs joined by the closed end of the loop, the closed end of the loop forming a nose 16 for the fastener, a limb 17 being bent outwardly to form an upper leg and then inwardly to form a snap-engaging knee 19 end and a lower leg 22 with a section sheared out of at least one lateral edge of the limb to form a prong 14 at the knee, and both limbs then being bent outwardly to leave a heel 23a, 24a and a foot 23, 24 at the end of each limb. As shown, the fastener consists of a sheet metal blank bent to provide a substantially diamond shape stud having the pairs of feet 23, 24 and pairs of prongs 11, 12 (not shown) and 13, 14 struck from the edges of the blank. The fastener is used to secure a beading to a panel the stud portion being engaged in a rectangular slot in the panel. In another construction, Figs. 6-9 (not shown), the lower legs of the stud portion are of constant width, the feet 23, 24 are wider at their outer ends than at their inner ends and the prongs lie in the plane of the upper legs which may be tapered towards the nose of the fastener. In a simiar construction, Figs. 10, 11 (not shown), each upper leg is formed with only one prong.
Patent GB-1516218-A (GB)
Title: Asynchronous electrical machines
IPC: H02K17/16
Filed: 1975-09-04
Abstract: 1516218 Asynchronous electrical machines HSEA AB 4 Sept 1975 [6 Sept 1974] 36434/75 Heading H2A An asynchronous electrical machine with a rated power of at least 1 MVA has a laminated stator core 1 supporting a multiphase AC winding and surrounding a rotor 3, winding slots running axially along the entire rotor magnetic core, each slot being provided with confronting wall portions which converge towards each other in the radially outwards direction, the slots containing winding rods 6 included in a squirrel-cage winding and shaped to conform to the slot walls, the rotor rods 6 being short-circuited by means of a respective annular winding portion at each rotor end, and each said annular winding portion lying axially inside the corresponding axial end surface of the rotor core and axially outside the corresponding end surface of the stator core (Fig. 1, not shown). The rods 6 may be formed by U-shaped copper beams, each rotor slot containing a respective leg 9 of two beams, the webs 14 of which form at least 20% of the cross-sectional area of the beams. The U-shaped beams are in electrical contact with one another along the whole rotor length or at least for the greater part of their length axially outside the stator ends, at least these parts being welded together to form the short-circuiting annular winding portions. Beams 6 may each have insulation axially along the middle portion of the rotor. In alternative forms each rotor slot contains a respective correspondingly sectioned bar (8) or (12), Figs. 3, 4 (not shown), which bars have parts projecting radially outwardly of the rotor core airgap surface 10, the projecting parts engaging one another directly or via intermediate further conductor bars (11) on the radially outer surfaces of the rotor teeth 7. Each rotor winding rod may be formed by a plurality of axially end-to-end conductor units (13), Fig. 5 (not shown), corresponding units of adjacent rods being axially staggered. The rotor winding rods may have a smaller radial dimension between the stator ends than outside thereof, and the difference between the axial length of the active part of the rotor core and the stator core length should be greater than the rotor core diameter.
Patent GB-156146-A (GB)
Title: Process for the oxidation of acetaldehyde to acetic acid
IPC: C07C51/235
Filed: 1920-12-31
Abstract: In the catalytic oxidation of liquid acetaldehyde to acetic acid, the formation of peracetic acid is inhibited by using as catalysts considerable quantities of solid salts containing water of crystallization, e.g. hydrated salts, particularly the acetates, of nickel, cobalt, manganese, chromium or copper, alkali and alkaline earth hydrated salts, and alums.  Salts specifically mentioned are ferrous sulphate, sodium acetate, potassium cobalt sulphate, potassium ferri-sulphate, and manganous sulphate. According to the example, oxygen or air is passed into 100 parts of acetaldehyde containing 40 parts of finely-divided ferrous sulphate (Fe SO4.7H2O), the resulting acetic acid separated from the salt and then distilled, preferably in vacuo. The remaining ferric sulphate can be used afresh after it has been reduced and crystallized.  The reaction may take place under increased pressure.
Patent GB-412581-A (GB)
Title: Carburettors for internal combustion engines
IPC: F02M1/10
Filed: 1932-12-28
Abstract: 412,581. Spray carburetters. CARTER CARBURETOR CORPORATION, 2834, North Spring Avenue, St. Louis, Missouri, U.S.A. Dec. 28, 1932, No. 36708. Convention date, Jan. 4. [Class 7 (iii).] A choke valve in the air inlet is controlled by a thermally-responsive device, which moves it to a closed position when the temperature is low and holds it fully open when the normal operating temperature is reached, the air choke being connected to the mixture throttle so that it will be partly open whenever the mixture throttle is fully open. As shown in Fig. 6, the choke valve 8 is made in two parts, one 10 rigidly attached to the shaft 9, and the other 11 hinged thereon, a spring 12 normally holding the two parts in line. When the valve is closed, one end 15 of a lever 14 carried by the part 10 contacts with the wall of the air inlet and moves the other end 16 of the lever into contact with a projection 13 on the part 11 to limit its movement by the engine suction. As the temperature rises, the valve 8 is opened by a bimetallic coil 41, Fig. 1, enclosed in a shroud 44, one end of the coil being connected to the shaft 9 by a link 45 and an arm 46, whilst the other end is secured to a shaft 42 mounted on a mixture heater 43, the mixture passing around an exhaust pipe 51, which contains a valve 49 normally held open against a stop 56 by a slotted weighted arm 52. After the valve 8 has been opened fully, a stop 57 prevents further motion of the shaft 9, and a cylinder 58 in which the link 45 is mounted provides for further movement of the coil against the compression of a light spring 59, during which movement a roller 55 enters the slotted arm 52 to close the valve 49 and cut off the heating of the mixture. The choke valve is connected to the mixture throttle 22 by a link 60 pivotally and slidably mounted in the arm 46 and pivoted to an arm 61 on the shaft 23. The sliding movement, which is limited by a stop 63, allows the throttle to be opened slightly without opening the choke, and a movement of the throttle from this position either towards the open or closed position opens the choke valve. The throttle also controls an accelerating-pump and a needle valve 32 operating in a calibrated opening 30, Fig. 2, in the float chamber, from which fuel is supplied through passages 29, 31 to a main nozzle 17 disposed in the smallest of a series of Venturi tubes 19, 20, 21, or through passages 29, 31, 26, 27 to a slowrunning part 24 at the edge of the throttle.
Patent GB-880759-A (GB)
Title: Improvements relating to fluid pressure operated vehicle braking apparatus
IPC: B64C25/46
Filed: 1959-10-29
Abstract: 880,759. Fluid pressure brakes. WESTING- HOUSE AIR BRAKE CO. Oct. 29, 1959 [Oct. 29, 1958], No. 36723/59. Class 103 (1). A fluid pressure operated vehicle braking apparatus includes an antiskid device and a by-pass valve device which retains open a brake cylinder supply path additional to, and by passing, the supply conduit through the antiskid device, only whilst pressure in the supply conduit is below a predetermined value. On brake application, a manually-operated, self-lapping valve device 1 supplies compressed fluid from reservoir 1 to brake cylinders 7 via conduit 3, release valve device 4 and conduit 6, and also through pipe 10, port 38, passage 39, chamber 26 and outlet 25, 24 of a by-pass valve device 9, and conduits 11 and 6. The pressure fluid in device 9 passes through passages 35, 36 in piston 15 and screw 21 to a chamber 34 to, at a predetermined pressure, overcome a spring 27 and move piston 15 to close a valve 20, 22, further flow to the brake cylinders via device 9 being thereby prevented. The brakes are then under the control of a wheel slip responsive device and release valve device 4. The valve 20, 22 is reopened by spring 27 when brake cylinder pressure has been reduced below the predetermined value on complete brake release; the device 9 ensures rapid initial communication of fluid to the brake cylinders.
Patent GB-1023092-A (GB)
Title: Moisture ejector valve
Inventor: MASTIS VICTOR
IPC: F16T1/14
Filed: 1962-09-27
Abstract: 1,023,092. Fluid traps for compressed air systems. BERG AIRLECTRO PRODUCTS CO. Sept. 27, 1962, No. 36755/62. Heading F4U. A moisture ejection valve, e.g. for the pneumatic braking system of a vehicle comprises a hollow main piston 40 slidable within a chamber 28 and an inner piston 64 slidable within the hollow piston, the two pistons defining a liquid collecting space 62. In the moisture collecting position shown in Fig. 1, moisture runs from an air brake reservoir (not shown) which is connected to a coupling extension 14, through bore 22, port 26 into space 44 and hence into collecting space 62 via ports 60. The main piston is held in this normal position by differential pressures created within space 44. In the direction of end 30, the air under pressure in the space 44 operates on a piston area indicated by the radial distance 59, in the opposite direction the air pressure operates on a piston area indicated by the radial distance 61. As the pressure throughout space 44 is uniform this causes the piston 40 to stay in the position shown in Fig. 1. The pressure in collecting space 62 which is the same as in space 44 causes the inner piston 64 to be held firmly against split ring 66. When the driver of the vehicle operates the brakes, a blast of air under pressure is sent through port 38. This air is of less than or equal pressure to the pressure in the collecting chamber 62 so that piston 64 is not moved. This pressure is enough however to overcome the pressure differentials created within space 44. The main piston is therefore moved towards opening 30 until shoulders 50, 52 on the chamber and piston respectively meet. In this position (see Fig. 2, not shown), ports 60 connect collecting space 62 to atmosphere and thus the air pressure from port 38 moves piston 64 forward in the space 64 forcing any collected moisture out into the atmosphere. When the brake is released, air ceases to flow through port 38 and due to differential air pressures (Fig. 3, not shown) the main piston moves back to its original position and similarly when air from the reservoir again enters collecting space 62, piston 64 is also moved to its original position. At all times throughout the cycle the air reservoir is sealed from the atmosphere and from port 38. The valve can also be operated manually by handle 70 to remove moisture from the collecting space 62.