baber/WOPTO huggingface dataset:
Patent GB-761568-A (GB)
Title: New organo-tin compounds and resinous compositions containing the same
Inventor: BARKER REUBEN LLOYD
IPC: C07F7/22
Filed: 1953-11-20
Abstract: A resinous composition contains a vinyl chloride polymer or copolymer and an organotin compound of the general formula <FORM:0761568/IV(a)/1> wherein R and R1 represent the same or different alkyl groups having from 3 to 8 carbon atoms, X represents the acyl residue of an aliphatic saturated monocarboxylic acid (preferably having from 10 to 18 carbon atoms), Y represents the acyl residue of an a -unsaturated aliphatic monocarboxylic acid and Z is the diacyl residue of an a -unsaturated aliphatic dicarboxylic acid. Suitable copolymers mentioned are those derived from vinyl chloride and vinyl acetate or propionate, ethyl acrylate, dibutyl maleate, vinyl fluoride or ethylene.  The organo-tin compounds referred to above may be used in the resinous compositions described in Specifications 759,775 and 759,776, replacing wholly or in part the organo-tin compounds specified in these Specifications.ALSO:The invention comprises organo-tin compounds of the general formul <FORM:0761568/IV(b)/1> <FORM:0761568/IV(b)/2> wherein R and R1 represent the same or different alkyl groups each having from 3 to 8 carbon atoms, X represents the acyl residue of an aliphatic saturated monocarboxylic acid (preferably having from 10 to 18 carbon atoms), Y represents the acyl residue of an aliphatic a -unsaturated monocarboxylic acid, and Z represents the diacyl residue of an a -unsaturated dicarboxylic acid, and a process for the preparation thereof by heating a dialkyl-tin oxide of the formula <FORM:0761568/IV(b)/3> a dialkyl-tin salt of the formula <FORM:0761568/IV(b)/4> and an acid YOH or Z(OH)2 or the corresponding anhydride, R, R1, X, Y and Z having the above significance.  The group X may be derived from butyric, lauric, stearic or palmitic acid, the group Y may be derived from acrylic, methacrylic or crotonic acid, and the group Z may be derived from maleic, fumaric or citraconic acid.  R and R1 are preferably butyl, iso-butyl, t-butyl or amyl groups.  The above process may be modified in that the unsaturated acid Z(OH)2 or its anhydride is formed in situ wholly or in part by substituting for the unsaturated acid or anhydride an appropriate amount of the corresponding a -hydroxy saturated acid, e.g. malic acid in place of maleic acid or anhydride.  In the examples, compounds of the formul  <FORM:0761568/IV(b)/5> <FORM:0761568/IV(b)/6> are prepared.  Specifications 759,775 and 759,776, [both in Group IV (a)], are referred to.
Patent GB-312945-A (GB)
Title: Improvements in electric heating more particularly intended for use with mercury vapour lamps
IPC: H05B3/58
Filed: 1927-12-02
Abstract: 312,945. Reynolds, F., and Sample, L. Dec. 2, 1927. Electric stoves.-An apparatus for use in electrically heating tubes, rods, &c., particularly the preliminary heating of mercury vapour lamps, consists of a series of parallel steatite &c. insulating-tubes 1 through which a resistance wire or ribbon 2 is threaded, the tubes, when bound together, forming a self-contained flexible mat which will wrap round the object to be heated. The binding material may take the form of a thin metal strip 3 to which the tubes are secured by a thin wire or thread 4, the thread being burnt on the first passage of the current. When m position round the tube 5, the ends of the strip are secured by a clip 3a and bent outwards. Alternatively, the thread may be looped round the curved portions of the wire 2. In other modifications, the tubes are secured together by a strip of adhesive paper over which a clip is placed when the device is in position, or a fine metal wire may be interlaced between the tubes; or twin holes may be formed in the tubes, one set carrying the heating wire and the other the binding wire. When the tubes are even in number, one of the end tubes may be made longer or shorter than the remainder to avoid the risk of a short circuit when the device is wrapped round the object to be heated. Specification 9375/04 is referred to.
Patent GB-1017211-A (GB)
Title: A process for making electro-corundum
IPC: C01F7/38
Filed: 1962-08-24
Abstract: Electro corundum is made by a process of reduction of an alumina containing mineral, in which the ratio R of the percentage by weight of oxygen combined in the form of iron, silicon and titanium oxides to the percentage by weight of alumina in the mineral is at least 19: 100 in which, in a first stage, the mineral is reduced in a combustion furnace at 1100 DEG  to 1300 DEG  C. with at least the amount of a reducing agent, which may be a solid carbonaceous material, e.g. coke, charcoal, or a gaseous hydrocarbon, e.g. coal gas, methane, natural gas, or hydrogen, carbon monoxide, or a mixtures of gases, which is required for the reduction of the radio R to below 19: 100 and, in a second stage, the product of the first stage is subjected to electro-carbo-thermal reduction in an electric arc furnace at at least 2000 DEG  C. with at least the amount of carbon required to reduce the oxide impurities in the product of the first stage. The examples describe the use of coke as reducing agent for both stages.
Patent GB-1025148-A (GB)
Title: A diagnostic radiology apparatus
IPC: H05G1/36
Filed: 1963-08-16
Abstract: 1,025,148. X-ray systems. SIEMENS-REINIGER-WERKE A.G. Aug. 16,1963 [Aug. 17, 1962], No. 32595/63. Heading H2H. An X-ray system has a synchronous motor driven timer 20-22, which at determined times reduces the X-ray tube filament current and voltage to follow approximately the tube load diagram by a sectorial switch 23-25, the lower current and voltage ranges being adjustable. At a determined exposure an automatic device 27, 27 cuts off the tube supply and stops the motor, a screw and nut arrangement 32-35 indicating the elapsed time. A circuit (not shown) returns the timer to its starting position. In an alternative arrangement (Fig. 2, not shown), an additional switch controlling a series of lamps indicates in which time band the exposure is completed.
Patent GB-1450847-A (GB)
Title: Device for imaging digital data at a margin of a camera film
IPC: A61B3/14
Filed: 1974-07-24
Abstract: 1450847 Forming additional images CARL ZEISS-STIFTUNG [trading as CARL ZEISS] 24 July 1974 [1 Aug 1973] 32663/74 Heading G2A Digital data is projected on to either side of a film frame in a camera from two light-emitting diode display devices 25 and 26 in a camera back attachment 10 using two semi-transparent mirrors 27 and 28, optional filter 45, focusing lens 24 and two slits, each formed in the camera back, pressure plate 23 and film support 17, light from each device passing through the adjacent mirror, filter (if present), lens and remote slit, with reflection by the remote mirror. The film support window may be slightly reduced by opaque masking tape 50. Device 25 may be operated by a digital clock having zero-setting means 34 and device 26 may be operated by a frame counter having zero-setting means 37. Exposure time may be adjusted by means 40. Operation of the displays may be manual or automatic.
Patent GB-1137787-A (GB)
Title: An electric switch for direction indication in vehicles
IPC: B60Q1/42
Filed: 1967-07-17
Abstract: 1,137,787. Turn indicator switches. SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. 17 July, 1967 [10 Dec., 1966], No. 32712/67. Heading G4Q. [Also in Division H1] A turn-indicator switch for road vehicles comprises an operating lever 24 pivoted at 23 and provided with forked ends which extend round the steering column 13 and engage a switch member 34 provided with a return mechanism comprising a single cam 43 adapted to co-operate with an operating pin 14 attached to the steering column. The switch member 34 carries on its lower side a contact bridge (60, Fig. 3, not shown), adapted to bridge fixed contacts (20) in the base of the switch when the member is moved to either of its operative positions, and is maintained in one of its three positions by a spring - loaded ball co-operating with recesses in an extension 15. The lever 24 can also pivot in the vertical plane about the points where the ends 32 of the arms engage recesses 33 in the switch member, thereby operating a further switch comprising the bridging member 30 and fixed contacts (not shown in Fig. 2). Switch return mechanism.-The cam 43 is biased radially inwards by a spring 45 and is restrained by a pin (44, Fig. 1, not shown), bearing on the shaped surface 42 of the switch member 34. When the latter is displaced the cam moves radially until restrained by the pin 14, and when the steering column is rotated the cam moves into the path of the pin, and one side of the cam engages one or other of two stop members (not shown in Fig. 1), disposed in apertures 36 in the switch member. When the steering column is returned the pin 14 engages the cam 43 which applies pressure to the stop member to return the switch to the neutral position. The stop members are held in position by one or more springs so that if the switch is held on they can yield and the switch is not damaged. In one arrangement (Fig. 3, not shown), the two stop members are connected together by a tension spring (41), and in another arrangement (Fig. 8, not shown) each stop member is biased by a compression spring disposed in the aperture 36.
Patent GB-654829-A (GB)
Title: Improvements in or relating to switch-controlling devices for motor operated gramophone record playing units
IPC: G11B17/02
Filed: 1948-12-18
Abstract: 654,829. Snap-action switches. HUTCHINGS, E. L. Dec. 18, 1948, No. 32771. [Class 38(v)] [Also in Group XXXVIII] A switch controlling the electric motor of a gramophone is operated by movement of the tone arm. A slidable member A, to which is attached a movable element of the switch H, is connected at one end tc a'spring B which is offset to assist in holding it against the pawl J, and it has two openings through which extend locating studs that restrict its movement. The ratchet arm K is pivoted to an arm L which is fixed relatively to the tone arm and moves with it when the record is played, carrying the ratchet arm K across the end of the member A. When the tone arm reaches the end of the record and reciprocates because of the usual eccentric run-off groove the ratchet arm K moves the member A out of engagement with the pawl J and thus allows it to be pulled by the spring B so that it opens the switch. The device may re-set manually by means of a lip S, or a knob, on the member A; or by the movement of the tone arm, by means of a lever W actuated thereby.
Patent GB-1476324-A (GB)
Title: Elongate structural members
IPC: E04C3/07
Filed: 1974-07-17
Abstract: 1476324 Composite elongate structural members WARD BROS (SHERBURN) Ltd 17 July 1974 [17 July 1973 27 Nov 1973 22 March 1974] 32847/74 32848/74 and 32849/74 Divided out of 1476323 Headings E1K and EIW  A composite elongate member comprises two component parts 211, 212 which interlock together. Each part may be identical with the other and be formed of cold rolled steel. The composite member may be an I-beam. For Figure see next column
Patent GB-1003145-A (GB)
Title: Improvements in and relating to coke ovens
IPC: C10B5/12
Filed: 1962-08-28
Abstract: 1,003,145. Coke ovens. SIMON-CARVES Ltd. Aug. 28, 1962 [Sept. 29, 1961], No. 32905/62. Heading F4B. Gas flow between the regenerator sole channel and the regenerator cells of a coke oven is controlled by a distribution member comprising a number of apertured plates detachably connected end-to-end, which rest on supports formed near the upper edge of the sole channel, the sizes of the apertures in the plates being different and the length of each plate being less than the available working space available at the level of the sole channel. The distributing member 28 rests on shoulders 29 to form the base of a channel 30 extending above the sole channel 19, Fig. 3. Each member 28 is formed of a series of plates 28a, 28b, Fig. 4, which carry at one end plates 36, 37 which form a socket in which the end of the next adjacent plate is secured by a pin 38. At one or both ends of the channel 30 a box with a removable cover 31, Fig. 2, has a mark on its wall to assist in correctly positioning the member 28. The holes in 40 in the plates 28a, 28d, Fig. 5, at the ends of the oven are larger than those in plates 28b, 28c at the middle part and the holes become progressively larger towards the coke side of the oven.
Patent GB-864221-A (GB)
Title: Improvements in and relating to guide rails for rigid sliding roofs for vehicles
IPC: B60J7/04
Filed: 1959-09-29
Abstract: 864,221. Vehicle sliding roofs. WEBASTOWERK G.m.b.H. Sept. 29, 1959 [Oct. 18, 1958], No. 33075/59. Class 108(1). The stationary roof guide 5 for a sliding roof is adjustable in.,a.., vertical direction by means of screws 10 which engage threaded bosses secured to the member 2 which is attached to the roof. Access to the screw head is obtained through the aperture 11 and the screw head may be stepped to fit in the aperture. Another embodiment describes a cam engaging the underside of the guide 5 to adjust its height.
Patent GB-829969-A (GB)
Title: Improvements relating to electric discharge devices
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01J17/04
Filed: 1957-10-23
Abstract: 829,969. T.R. switches. BRITISH THOMSON-HOUSTON CO. Ltd. Oct. 9, 1958 [Oct. 23, 1957], No. 33113/57. Class 39(1). Silica or glass wool is confined in the vicinity of the resonant rest of a T.B. device by a container the wall of which is collapsed after assembly of the device in order to compress the wool. In the arrangement shown the wool 4 is confined in a container 10 the rim of which is soldered to the broad-walls of a section 1 of rectangular-waveguide. A transverse wall 2 containing the resonant slot 3 sealed by glass or other suitable vitreous material is secured to the waveguide by a soldered joint 9, and during this operation the wool is kept away to prevent particles thereof interfering with the making of the joint. The wall of the container 10 is then permanently deformed to compress the wool and simultaneously tune the device to the desired frequency by means of a rod inserted through a tubulation 8 and screwed into a bar 13 secured to the wall of the container, or by any other suitable means. The rod is then removed and the device evacuated and filled with a gas such as argon through the tubulation 8 which is finally sealed off.
Patent GB-883937-A (GB)
Title: Improvements in or relating to potentiometers and variable resistors
Inventor: BROWN JOHN KENNETH
IPC: H01C10/20
Filed: 1960-09-27
Abstract: 883,937. Variable resistors. A.B. METAL PRODUCTS Ltd. Sept. 27, 1960, No. 33114/60. Addition to 846,258. Drawings to Specification. Class 37. A double potentiometer as described in the parent Specification, is modified in that the operating controls for the two potentiometers are non-rotatably mounted with respect to one another, for ganged rotation together. A modified control knob, Fig. 2 (not shown) which dispenses with the extension is also described.
Patent GB-942824-A (GB)
Title: Light sensitive material for stencil production
IPC: G03F7/12
Filed: 1960-09-27
Abstract: 942,824. Light-sensitized materials for stencil production. KALLE A. G. Sept. 27,1960 [Oct. 2, 1959], No. 33169/60. Headings G2C and G2M. A porous support is provided with a coating including an N-alkoxy-methylated partially depolymerized polycondensate of an #,#<SP>1</SP>-diamine with an #,#<SP>1</SP>-dicarboxylic acid which is soluble in aqueous alcohol or in aliphatic alcohols, and is sensitized as with a bichromate, diazonium compound or an azido-styryl compound. Procedure therewith is exposure as under a diapositive and treatment with aqueous alcohol to leave a stencil. In Example 1 4, 4<SP>1</SP>-diazidostilbene-2, 2<SP>1</SP>-disulphonic acid sodium salt in aqueous ethylene glycol monomethyl ether is added to a commercial polyadipic acid hexamethylene diamine type polyamide, which had been partially depolymerized by strong acid and subsequently methylated with paraformaldehyde, in aqueous alcohol and the mixture is coated by immersion and draining or spraying on to a support as of Japanese-fibre paper, polyamide, polyester, silk, glass or metal fabric, exposed and developed with aqueous methyl, ethyl or propyl alcohol to make a stencil suitable for very prolonged use. Example 2 uses, similarly, ammonium bichromate as sensitizer; Example 3 a polysebacic acid type polyamide in the manner of Example 1; Example 4 the tetrazoborofluoride from 4, 4<SP>1</SP>- diaminostilbene as sensitizer with the polyamide material of Example 1 and describes prolonged exposure to produce cross-linking and provide a stencil resistant to hydrofluoric acid for the etching of glass, and Example 5 eleven further azido compounds for replacement of the sensitizers of Examples 1-3.
Patent GB-1452738-A (GB)
Title: Binding ring epicyclic change speed gear hubs
IPC: B42F13/16
Filed: 1972-07-15
Abstract: 1452738 Binding rings GRASTELLA Ltd 15 Oct 1973 [15 July 1972 19 Jan 1973] 33211/72 and 2852/73 Heading B6E A binding ring has two spaced post members connected together at their lower ends by a web 14 and securable to the cover of a loose leaf binder, and a substantially arcuate member pivotably connected to one of the post members so as to be pivotable about a single axis which is not parallel to the plane of the web 14, and connectible to the other post member to close the ring. In a first embodiment the post members are hollow cylinders 12, 13 secured to the cover 16 by pins 22 mounted on a member 18. The arcuate member 32 has an extension 34 pivotably held in the cylinder 12. Locking means comprising cylindrical or wedge-shaped snap fasteners 36 on the arcuate member 32 and cylinder 13 hold the ring, which may be of plastics material, in the closed position. The pins 22 may be held by vacuum in the cylinders 12, 13. In a second embodiment, the pivotable connection is formed by a thinned down portion (52), Fig. 6 (not shown), constituting a hinge between one of the cylinders (42) and an integral arcuate member (48). The cylindrical members and connecting web may be adhered or sonically welded to the cover. The binding rings may be of the fold away type in which case the cylinders are either removably secured on studs attached to the cover or attached to a web (62), Fig. 9 (not shown), hingeably connected to a member (68) attached to the cover.
Patent GB-430415-A (GB)
Title: Improvements in or appertaining to automatic volume control for radio receivers
IPC: H03G3/26
Filed: 1933-11-28
Abstract: 430,415. Valve circuits for wireless reception. COLE, Ltd., E. K., Priory Crescent, Southend-on-Sea, and MARTIN, A. W., 1, Thames Close, Leigh-on-Sea. Nov. 28, 1933, No. 33254. [Class 40 (v)] A carrier frequency amplifier is rendered inefficient by causing it to take grid current until the reception of a signal of over a predetermined magnitude, the grid current being arrested by the increased impedance of a subsequent valve due to A.V.C. potentials applied thereto on the reception of such a signal. In one embodiment, a combined detector - oscillator valve 4 feeds an I.F. amplifier 6 the output from which is demodulated by a diode rectifier 8 feeding L.F. amplifiers 11, 13. A portion of the output from valve 6 is fed through condenser 14 to a gain control diode 9 the circuit of which includes the resistances 16, 18 and part of the cathode resistance 19 of valve 6. The latter provides a delay bias for the diode 9 and the A.V.C. bias for valve 6 is taken from the junction of the resistances 16, 18. The control potentials amplified by valve 6 appear in the resistance 19 and are fed from a point Y thereon to the signal grid of valve 4 through resistance 20. In the absence of signals the signal grid of valve 4 is positively biassed to reduce its amplification by connecting the cathode to a suitable tapping XI on a current-carrying potentiometer 21. In order to limit the positive bias on the grid of valve 4 a diode 23 may be connected between said grid and a tapping Z on the potentiometer 21, which becomes conducting when the predetermined voltage is exceeded. In other embodiments the positive muting bias is variable.
Patent GB-1088549-A (GB)
Title: Monoazo dyestuffs
Inventor: WOLFRUM GERHARD
IPC: C09B29/033
Filed: 1966-07-25
Abstract: The invention comprises water-insoluble monoazo dyes of formula <FORM:1088549/C4-C5/1> wherein X is OCH3, OC2H5, OC3H7, OC4H9, Cl, Br, CH3, C2H5, CF3, COOCH3, COOC2H5, COOC3H7, COOC4H9, SCH3, SC2H5 or CH2CH2OH, Y is OCH3, OC2H5, OC3H7, Cl, Br, CH3 or C2H5 and n is 0 or 1. The dyes are prepared by diazotizing an appropriate aminobenzthiazole and coupling the diazonium compound with 5-hydroxyacenaphthene. The dyes may be used to colour metal-containing polypropylene fibres in blue shades.
Patent GB-339742-A (GB)
Title: Improvements in or relating to vehicle wheels and tyres therefor, and their manufacture
IPC: B60C19/00
Filed: 1929-11-02
Abstract: 339,742. Dunlop Rubber Co., Ltd., Fellowes, F., and Nicholas, F. A. Nov. 2, 1929. Tyre attachments to rim s.-pneumatic tyres, particularly of the large-section type which are mounted directly on a hub element of the wheel as used on aircraft, have their rim-seating portions formed with one or more flat surfaces to engage corresponding surfaces on the hub or rim member. In the construction shown, the tyre beads 2 and the seatings 4, 5 of the hub member are of polygonal form. The bead cores may be of flattened or polygonal form, or the flat surfaces may be provided by pieces of fabric, rubber, &c., or light metal, incorporated in the beads. The tyre seating portion of the hub comprises a sleeve 3 which is formed with a fixed tyre-retaining flange 4 and is threaded to receive a detachable flange 5.
Patent GB-288512-A (GB)
Title: Improvements in boiler cleaners
IPC: F28G3/16
Filed: 1927-12-13
Abstract: 288,512. Fairweather, H. G. C., (Whittemore, Hulbert, Whittemore, & Belknap). Dec. 13, 1927. Cleaning, fluid - pressure processes for. -A supporting clip for the blower tube of a steam blower of which the general arrangement is shown in Fig. 1 comprises two parts shown respectively in Figs. 2a and 3a, in which a tang 19a engages a recess 20, and a tang 19 a recess 20<a>. A bolt 16, Fig. 1, consolidates the whole.
Patent GB-768742-A (GB)
Title: Prism binocular with carrying strap
IPC: G02B23/18
Filed: 1954-11-22
Abstract: 768,742. Binoculars. ZEISS-STIFTUNG C., [trading as ZEISS, C. [Firm of]]. Nov. 22, 1954 [Dec. 10, 1953], No. 33672/54. Class 97(1) To ensure that prism binoculars shall rest against the wearer when suspended from the neck, the carrying strap is attached to the binocular at two points such that when the binoculars are suspended from the neck the centre of gravity thereof lies between the wearer and a plane through the second two points parallel to the plane passing through the optical axes of the binoculars. As shown the strap d', d<SP>2</SP> is attached to the binoculars by pas sage of the ends c<SP>1</SP>, c<SP>2</SP> thereof through slots b<SP>1</SP>, b<SP>2</SP> in a cross bar a'. The slots b<SP>1</SP>, b<SP>2</SP> are displaced from the centre of gravity s of the binoculars in a direction away from the observer, Fig. 2. Further the bar a' is preferably arranged below a horizontal plane through the centre of gravity when the optical axes of the binoculars are vertical so as to increase the tendency of the binoculars to rest against the wearer. The strap d', d<SP>2</SP> may be threaded through a rain guard extending over the oculars e<SP>1</SP>, e<SP>2</SP>.
Patent GB-1459335-A (GB)
Title: Catalyst composition for the production of y-butyrolactone from maleic anhydride
IPC: C07D307/33
Filed: 1974-07-31
Abstract: 1459335 γ-Butyrolactone DEUTSCHE TEXACO AG 31 July 1974 [3 Aug 1973] 33861/74 Heading C2C [Also in Division B1] γ-Butyrolactone is made by the hydrogenation of maleic anhydride dissolved in, for example, γ-butyrolactone at 100-250 C. and 100-150 kp./cm.<SP>2</SP> in the presence of a catalyst comprising a mixture of palladium on activated carbon and nickel copper chromite on alumina.