baber/WOPTO huggingface dataset:
Patent GB-1304987-A (GB)
Inventor: JURECIC A
IPC: A61K6/884
Filed: 1971-04-19
Abstract: 1304987 Water-soluble acrylic copolymer dental cements PENNWALT CORP 19 April 1971 [10 March 1970] 23321/71 Heading C3P Dental cements comprise (1) zinc oxide and (2) water-soluble acrylic copolymers of molecular weight 20,000 to 75,000 and containing 10 to 90 mole per cent of acrylic acid units, 0 to 5 mole per cent of C 1-8  alkyl acrylate units and the balance of units of glutaconic, aconitic, citraconic, mesaconic, itaconic, fumaric, maleic or tiglic acid. The copolymers may be prepared by copolymerization in aqueous media in the presence of a peroxide or redox catalyst, and solutions of the polymers in water and/or mono- or polyhydric alcohols may be mixed with zinc oxide to give dental cements, which may also contain magnesium, silicon, bismuth, barium, calcium or aluminium oxides, barium sulphate, sodium fluoride, calcium tungstate, sodium chloride, sodium iodide, sodium sulphate or sodium phosphate. In examples acrylic acid is copolymerized with (1) itaconic acid and (2) itaconic and maleic acids in the presence of ammonium persulphate, with (3) citraconic acid in the presence of hydrogen peroxide, ferrous sulphate and ascorbic acid, with (4) itaconic acid in the presence of potassium persulphate and sodium bisulphite, and with (5) glutaconic acid, mesaconic acid, aconitic acid, citraconic acid, tiglic acid, itaconic acid/maleic acid, itaconic acid/butyl acrylate, itaconic acid/ 2-ethylhexyl acrylate, citraconic acid/aconitic acid/maleic acid, glutaconic acid/itaconic acid/ ethyl acrylate and citraconic acid/itaconic acid/ methyl acrylate; the products being converted to dental cements by mixing with 90 : 10 zinc oxide/magnesium oxide containing small amounts of aluminium oxide, barium sulphate and calcium tungstate.
Patent GB-783079-A (GB)
Title: Improvements in or relating to magnetrons
Inventor: BAKER JOHN EDWIN
IPC: H01J25/587
Filed: 1954-08-11
Abstract: 783,079. Magnetrons. M-O VALVE CO., Ltd. Aug. 11, 1955 [Aug. 11, 1954], No. 23371/54. Addition to 744,788. Class 39(1). The frequency of the multi-cavity magnetron of the parent Specification is adjusted during operation, or once and for all during manufacture, by adjusting the position or dimensions of a member or members in, or forming a wall part of, an end space. In Fig. 2 a diaphragm is composed of arcuate strips 20 to form an adjustable opening. The strips are pivoted at one end ; the other ends have pins 201 which ride in radial slots of a ring 18. The size of the opening is adjusted by rotating the ring 18 by means of a cranked yoke 30 and arm 31. In Fig. 4 a plunger 65, with or without an aperture, is moved axially as it is rotated by a similar mechanism. Radial pins 66 engage inclined slots 67. The frequency of the magnetron may be adjusted during manufacture by choosing one of a series of cylinders of different internal diameters to fit into an end space.
Patent GB-282175-A (GB)
Title: Improvements in electric bell indicator systems
IPC: G08B7/06
Filed: 1926-09-22
Abstract: 282,175. Parsons, I. H. Sept. 22, 1926. Indicating origin of call to servants and other attendants.-In an electric bell indicator system for use in buildings, such as hotels, wherein the operation of a press button switch releases an attendant's indicator and rings a bell, a delay acting switch is released simultaneously to operate an alarm unless the indicator is reset within a predetermined time period. In the system shown in Fig. 1, operation of a push I, energizes the corresponding indicator release magnet G and rings the bell J. The electromagnet B of clock-driven switch C is simultaneously energized to release the arm C' which closes at the contacts D, the circuit of a supervisor's bell K, unless reset by the indicator replacement rod F within a predetermined time period. An indicator may be used instead of the bell K. Fig. 3 shows a form of delay acting switch. The arm C<1> which operates the alarm contact D, D<1>, is mounted on the spindle C27 and held against the action of a driving spring C2 by the armature B1 of the electromagnet B. The latch B2 of the armature engages a lever C21 pivoted to the arm C1 and having a limited movement provided by a pin C23 co-operating with a slot C24 in the arm. The lever C21 provides for the rapid disengagement of the switch arm C1 and facilitates replacement. Movement of the arm is controlled by an escapement or fly mechanism through a train of wheels C29, C30, C31.
Patent GB-706022-A (GB)
Title: Improvements in new dialkylaminobenzylidene dyes and in their preparation
IPC: C09B23/10
Filed: 1950-09-25
Abstract: Dyes of the general formula <FORM:0706022/IV(c)/1> wherein D1 and D2 represent p-phenylene groups, which may be substituted, Q represents a divalent hydrocarbon radical containing 2 or 3 carbon atoms or o-arylene group, which may be substituted, and R1 and R2 represent alkyl groups, are prepared by reacting an anhydride of a dicarboxylic acid of the general formula <FORM:0706022/IV(c)/2> with an amino compound of the general formula <FORM:0706022/IV(c)/3> in the presence of a heterocyclic base of the pyridine series, and liberating the dye from its salt with such base by acidifying the reaction mixture.  The reaction mixture may be heated.  The anhydride may be succinic, maleic, glutaric, pyrotartaric, phthalic, 3-chlorophthalic, 4-chlorophthalic, 3-methylphthalic, or 4-methylphthalic anhydride, the amino compound a-(p-aminobenzoyl)-a-(diethyl-aminobenzylidene)-acetonitrile, a-(p-aminobenzoyl)-a-(p-di-n-propylaminobenzylidene)-acetonitrile, a-(p-aminobenzoyl)-a-(p-di-n-butylaminobenzylidene)-acetonitrile, or a-(p-aminobenzoyl)-a-(dimethylaminobenzylidene)-acetonitrile and the pyridine base pyridine, a-, b - or g -picoline, or 2 : 3-, 2 : 4-, 2 : 5-, 2 : 6-, 3 : 4-, or 3 : 5-lutidine.  a-[P-(b -Carboxypropionamido) -benzoyl]-a-(p-diethylaminobenzylidene)-acetonitrile is prepared by refluxing together a-(p-aminobenzoyl)-a-(p-diethylaminobenzylidene - acetonitrile, succinic anhydride, and pyridine, and acidifying with hydrochloric acid. a-[P-(O-Carboxybenzamido)-benzoyl]-a-(p-diethylaminobenzylidene) -acetonitrile, a-[p-(b -carboxypropionamido) -benzoyl]-a-(p-di-n-propylaminobenzylidene)-acetonitrile, a-[p-(b -carboxypropionamido) -benzoyl]-a-(pdinbutylaminbenzlidene)-acetonitrile, and a-[p-(b -carboxyacrylamido) -benzoyl]-a-(p-di-n-butylaminobenzylidine)-acetonitrile are similarly prepared. a(P-Aminobenzoyl)-a-(p-diethylaminobenzylidine)-acetonitrile is prepared by refluxing together p-aminobenzoylacetonitrile, p-diethylaminobenzaldehyde, absolute ethyl alcohol, and piperidine. a-(P-Aminobenzoyl)-a-(p-di-n-propylaminobenzylidene)-acetonitrile, a-(p-aminobenzoyl)-a-(p-dimethyl-aminobenzylidene)-acetonitrile, and a-(p-aminobenzoyl)-a-(p-di-n-butylaminobenzylidene)-acetonitrile are similarly prepared.  Specification 706,084 is referred to.
Patent GB-141605-A (GB)
Title: Improvements in or relating to the firing mechanism of automatic guns
IPC: F41A19/34
Filed: 1914-11-09
Abstract: 141,605. Dawson, Sir A. T., and Buckham, Sir G. T. Nov. 9,1914. Machine guns.-Relates to firing mechanism for Vickers' guns, and consists in an arrangement wherein the trigger sear B<1> engages directly with the firing-pin B, and is subject to the action of a spring D, which also acts as a return spring for the cocking tumbler C. The cocking tumbler has an arm C<2> which engages with a cocking projection C<1> on the firing-pin during the recoil movement, the cocking tumbler being freely returned to the position shown by the spring D after the cocking has been effected. The invention is shown applied to a gun such as is described in Specifications 8783/14 and 6875/15.
Patent GB-501209-A (GB)
Title: Improvements in or relating to electrical voltage regulating arrangements
IPC: G05F3/06
Filed: 1937-08-26
Abstract: 501,209. Automatic regulation. BAGNALL, R. I., and FOSTER ENGINEERING CO., Ltd. Aug. 26, 1937, No. 23418. [Class 38 (iv)] An arrangement for obtaining a substantially constant voltage from a variable voltage supply comprises a saturable choke 5 and two condensers 3, 4 in series across the supply, the choke 5 and the condenser 4 being included in the output circuit. The choke 5 may be provided with a tapping 6 or an extension 7 to enable the desired output voltage to be obtained. Instead of being directly coupled, the condenser 4 may be transformer coupled to the output circuit 2. In a further modification of this, the choke 5 is provided with a secondary winding connected in the output circuit 2.
Patent GB-1419321-A (GB)
Title: Machine tool attachments
IPC: B23C3/32
Filed: 1973-05-16
Abstract: 1419321 Machining halides; milling LEE SONA PLASTICS MACHINERY Ltd 14 May 1974 [16 May 1973] 23424/73 Headings B3D and B3K In a grinding or milling machine having a traversible work table on which a workpiece 1 is supported between centres 2 and 3 an attachment is mounted, on a column 4 of the machine, which is connectable with the workpiece to permit the milling or grinding of a helical groove in the surface of the workpiece by means of a grinding wheel or milling cutter 10 supported on the column 4. The attachment in the form of a mounting plate 5 firmly screwable to the column 4, the plate carrying a pivotable plate 6 which is pivotable about an axis at right angles to the axis of the workpiece centres and intersecting therewith. A track 7 in the form of a rod slidably carries thereon a runner 8 which is connected with the workpiece 1 by way of a collar 9, the track being orientated at an acute angle to the axis of the workpiece by pivoting the plate 6 so that movement of the worktable, with the workpiece, past the column 4 also causes rotation of the workpiece between the centres causing a helical path to be cut in the surface of the workpiece.
Patent GB-1519201-A (GB)
Title: Electrical connector
IPC: H01R4/10
Filed: 1975-05-29
Abstract: 1519201 Electrical connectors RAYCHEM CORP 29 May 1975 [3 June 1974] 23456/75 Heading H2E A cable, for example a coaxial cable 37 may be connected to a printed circuit board 33 by a device comprising a conductive body 30 having a wall at one end, a pluraality of projections 31 and at least one tab 35 for contacting the cable dielectric. As described, the body 30 is provided with a plurality of legs 31 which pass through holes 32 in the board 33 to mechanically attach the cable 37 to the board 33, and electrically terminate the shield 38 of at least one cable 37 to conducting pads 34. The or each cable 37 is mechanically connected to the body 30 by a heat shrinkable sleeve 39, the shield 30 being first exposed so that the cable(s) can be electrically connected to the body 30, e.g. by a solder ring 29. The centre conductor 40 is soldered to pad 42, being within the confines of a pair of tabs 35 which hold the dielectric 36 surrounding conductor 40, the tabs enabling the connection to be effected with a minimum of impedance mismatch.
Patent GB-1105206-A (GB)
Title: Device for changing pressure energy into electric energy
IPC: H01L27/00
Filed: 1966-05-25
Abstract: 1,105,206. Pressure sensitive devices. TELEFONAKTIEBOLAGET L. M. ERICSSON. 25 May, 1966 [25 May, 1965], No. 23491/66. Heading H1K. [Also in Divisions G1 and H4] A pressure-sensitive device comprises an insulated gate field effect transistor the insulated gate region comprising a piezo-electric layer and a normal dielectric layer so that stress on the piezo-electric layer can exert field effect conductivity control on the channel. Fig. 2 shows a high resistivity P-type silicon substrate containing source and drain N-type regions with electrodes S and D; an oxide layer 7 overlies the source-drain channel and a piezo-electric layer 9 of lead-zircon-titanate or barium titanate with electrode G extending over the oxide layer. A pin K is used to apply pressure to piezo-electric layer 8, the resulting electric field exercising field effect control over the source-drain current. The device may be encased in a sealed casing with pin K in contact with a diaphragm either directly or via a spring or " bouncing putty " (i.e. material with time dependent elasticity properties), and may be used as a microphone or pressure transducer. In a further embodiment a resilient arm co-operates with pin K to provide a pressure controlled switch. The piezo-electric layer may be vaporized on to the dielectric layer or a thin tablet of the material may be glued thereto.
Patent GB-1284205-A (GB)
Title: Room temperature vulcanisable silicone rubber with improved cleanability
IPC: C08L83/00
Filed: 1971-04-19
Abstract: 1284205 Silicone rubber compositions DOW CORNING CORP 19 April 1971 [9 April 1970] 23491/71 Heading C3T A composition which cures to a dirt-resistant silicone rubber when exposed to moisture at room temperature comprises (A) 100 parts wt. of a polydiorganosiloxane having the unit formula R 2 SiO having a viscosity of 1000 to 50,000 cs. at 25 C. and being terminated by OH radicals or the radicals R(YO) 2 SiO 0À5 , where R is methyl, ethyl, vinyl or phenyl, at least 75% R being methyl, and YO- is acetoxy or C 1-4  alkoxy; (B) from 0À5-15 parts wt. of R<SP>1</SP>Si(OOCCH 3 ) 3  where R<SP>1</SP> is methyl, ethyl, vinyl, n- or iso-propyl or butyl, amyl, phenyl; and (C) from 0À5-5 parts wt. of tetraethoxysilane and/or ethylpolysilicate, wherein the amount of ethoxy is from 50-75% wt. based on the ethylpolysilicate. The composition may include fillers such as reinforcing silicas, TiO 2 , diatomaceous earth and iron oxide and a curing catalyst such as the metal salts of carboxylic acids many of which are specified. Uses.-As coatings, sealants, encapsulants, and electrical insulation.
Patent GB-1468788-A (GB)
Title: Pile coupling means for pile sections
IPC: E02D5/52
Filed: 1974-05-28
Abstract: 1468788 Joining pile sections PARCA NORRAHAMMAR AB 28 May 1974 [28 May 1973] 23491/74 Heading F2M [Also in Division E1] A joint member 1, Fig. 1, for a pile joint is provided on one surface with male elements 5 and female elements 9, 10 ; each element having a through hole whereby the joint member can be connected to the corresponding joint member of a superimposed pile by lock pins, cotters or bolts inserted through aligned holes therein. The joint member may be of square, polygonal or circular cross-section and is provided with four holes (4) through which extend reinforcing bars embedded in the pile. The male element may be in the form of an apertured plate and the female element in the form of apertured cheeks to receive same or on a modification, see Fig. 10, the male elements may be in the form of apertured lugs and the female member of an apertured recessed member 24 to receive said lug. In a modification a rock shoe is connected to a pile by a connection as set out above, see Figs. 5 and 6 (not shown).
Patent GB-459553-A (GB)
Title: An improved articulated combination of motor vehicle and trailer
IPC: B62D53/08
Filed: 1935-08-22
Abstract: 459,553. Vehicle couplings. SOUTHERN, R., 85, Lightcliffe Road, and BARKER, H. M., Ashville, Armitage Avenue, both in Brighouse. Yorkshire. Aug. 22, 1935, No. 23536. [Class 103 (v)] A motor vehicle of the type having a commercial load carrying body behind the driver's seat or cab carries, behind the rear axle, a transversely pivoted turntable to which a corresponding turntable member at the front end of a two wheeled trailer may be coupled to produce an articulated vehicle possessing two load carrying bodies, the motor vehicle being usable, when desired, without the trailer. The supporting turntable and coupling member may be carried directly by the motor vehicle chassis frame or by a frame hinged or slidably mounted in relation thereto so as to hang down or be retractable when not in use. In the form shown in Figs. 3 and 4, on the motor vehicle a turntable ring J is carried on brackets H, loosely mounted and positioned by collars G<1> on a transverse bar F rotatably mounted in the ends of a pair of bars C secured to the chassis longitudinals D by clips E. A centre bracket K, also rotatably mounted on the cross-bar F, carries an upwardly projecting tapered boss or coupling member k passing through and positioned by a slotted cross-bar L bolted to the ring J. The front end M of the two wheeled trailer carries a fixed turntable ring N and a plate P with a tapered socket p adapted to fit the boss K, the members when conpled being secured by a pin or bolt Q. In the arrangement shown in Fig. 5, the bars C are secured to the chassis longitudinals D in advance of the rear axle, the rear ends of the bars being shaped to leave a clearance T<1>. Either or each vehicle may have a rounded or V-shaped end to allow of close coupling. The motor vehicle may have a hinged tailboard U-apertured to clear the boss when lowered.
Patent GB-1208564-A (GB)
Title: Continuous casting of rod or tube
Inventor: BODIMEADE PETER
IPC: B22D11/00
Filed: 1966-05-27
Abstract: 1,208,564. Continuous casting; casting composite articles. GLACIER METAL CO. Ltd. 24 Aug., 1967 [27 May, 1966], No. 23831/66. Addition to 1,174,764. Heading B3F. [Also in Division F2] By pouring different molten metals simultaneously through a graphite mould 1, one metal around the outside of an annular graphite mandrel 4 and the other through the mandrel, there is produced: (1) a rod or tube with a bonded sleeve or with a sleeve shrunken on to the rod or tube by cooling, or (2) a rod or tube with a separate sleeve around it, the tubes being cast if a central solid mandrel 16 is used. Production of the forms (1) or (2) is determined by the position of the sharp end 17 of the annular mandrel 4 with respect to the solidification front 14, i.e. it may be at the front, downdownstream of it or upstream as shown. A refractory runner 2, in a mould recess 3, controls the metal flowing outside the mandrel 4, while a refractory runner 5 controls the metal flowing through the mandrel. When starting, metal flows from a channel 13, both into the runner 5 through an opening 8 and around the runner, to form a rod of the metal. When this proceeds satisfactorily, the runner 5 is moved forwards and turned through 180 degrees so that the metal flows solely through the runner via an opening 9 and the other metal is applied through a channel 12 and the runner 2 around the mandrel 4. The inner tube or rod may be Al-Cu and the sleeve of Al or Al-Sn. The composite tube produced may be used to make nuclear fuel rods or for shell or split bearings if the inner tube is the softer. Reinforcing whiskers may be supplied with the metal in channel 12 or channel 13 or both. Reference has been directed by the Comptroller to Specifications 1,052,571 and 1,174,764.
Patent GB-1421492-A (GB)
Title: Tool steel
IPC: C22C33/02
Filed: 1973-05-18
Abstract: 1421492 Steel compositions STORA KOPPARBERGS BERGSLAGS AB 18 May 1973 [18 May 1972] 23878/73 Heading C7A A steel prepared by a powder metallurgical method and particularly suited for use in coldworking or chip-cutting tools consists by weight, of:- the balance being iron and contaminants. The steel is powder with a microstructure of fine carbide particles evenly distributed in the matrix, preferably by inert gas atom, zalcon of the prealloyed melt, cooling the resultant particles under inert atmosphere, and hot compacting. The compacts can be hot- or cold-worked, rolled or forged then hardened at 1010-1070‹C quenched and tempered at 100-400‹C.
Patent GB-1035088-A (GB)
Title: Gas mixing apparatus
Inventor: EDDISON CHRISTOPHER RICHARD
IPC: B01F23/10
Filed: 1965-06-04
Abstract: 1,035,088. Gas burners. STANDARD TELEPHONES & CABLES Ltd. June 4, 1965, No. 23888/65. Heading F4T. Apparatus for supplying a burner with gas/ air mixtures in predetermined ratios comprises a plurality of matched jet-Venturi combinations 6, 5, Fig. 1 (not shown), mounted either on a rotatable turret 1 or on a slidable member so that a selected combination can be brought into operation. The turret is rotatably mounted between flanges on a spigot and is sealed therefrom by 0-rings 11. Gas is supplied into the hollow body of the turret by ducts 13, 14 and high pressure air enters through a port 7 in one of the flanges and passes into the jet 6 aligned therewith. The mixture passes through a port 10 in the other flange aligned with the corresponding Venturi 5. The jets 6 and Venturis 5 are adjustably screwed into the the turret. The jet-Venturi combinations may be produced as integral cartridges.
Patent GB-983506-A (GB)
Title: Improvements relating to floor cleaning appliances
IPC: A47L11/32
Filed: 1961-07-03
Abstract: 983,506. Floor cleaning machines. HOOVER Ltd. July 3, 1961 [July 11, 1960 (2)], No. 24022/61. Heading A4F. A floor cleaning machine includes means for sucking up detergent liquid from a floor through a suction nozzle 10 in an air stream and conveying it to an air/liquid separator 13, a reservoir 33 for liquid defoaming agent 53 situated in or adjacent the nozzle 10, and means for dispersing the defoaming agent ino the air/liquid mixture before it reaches the separator 13. The removable reservoir 33, vented by a pipe 48, has porous walls 46, 47 through which the defoament 53 seeps to be dispensed into the liquid sucked through a slit 17 in the nozzle 10 by a motor-fan 11 and carried, via tubes 18, 21, to the separator 13. Alternatively, (Fig. 6, not shown) the reservoir is provided with an open ended tubular passage through which the defoament is sucked into the air/ liquid mixture. A removable tank 12 is provided for supplying detergent liquid to the floor as required. Specification 928,046 is referred to.
Patent GB-207871-A (GB)
Title: Improvements in or relating to spirit levels
IPC: G01C9/30
Filed: 1922-09-06
Abstract: 207,871. Watts & Son, Ltd., E. R., and Weston, S. Sept. 6, 1922. Levels. - To maintain the length of a spiritlevel bubble approximately constant under variations of temperature the cross-sectional shape of the liquid chamber is so modified that a comparatively large bubble, e.g. one of a volume approximately three-sevenths of the volume of the liquid at 60‹ F., and one of substantially greater length than width, may be used. For this purpose a sealed tube or rod B, Figs. 1 and 2, preferably of glass, may be inserted in the liquid, or the body A of the level may, as shown in Fig. 4, be of greater width than depth with the upper wall only slightly curved transversely.
Patent GB-986621-A (GB)
Title: Process for dyeing fibrous materials containing wool and natural and/or artificial cellulose fibre materials
Inventor: SCHNEIDER OTTO
IPC: D06P3/82
Filed: 1961-07-04
Abstract: Fibrous materials containing wool and natural and/or artificial cellulose fibres are dyed in presence of a dye substantive for the cellulose and of a wool resist which is a product of reacting formaldehyde with a sulpho-group containing product of an aromatic hydroxy-compound and an aralkyl halide.  In example (1) a rayon/wool mixture is dyed with a substantive dye in presence of a resist as above.  (11) cotton/wool mixture is dyed in presence of resist as above plus substantive dye and acid dye.  In both cases hexamethylene tetramine is added to improve the resist effect. Specifications 320,056 and 332,960 are referred to.
Patent GB-431742-A (GB)
Title: Improvements in or relating to compressed air containers
IPC: F17C7/00
Filed: 1934-08-22
Abstract: 431,742. Compressed air containers. LAMBERT, M. L. J., 22, Portland Place, LATHAM, C., 3701, Lindell Boulevard, and KELLEY, I. D., 32, Portland Place, all in St. Louis, Missouri, U.S.A. Aug. 22, 1934, No. 24240. [Class 8 (ii)] Compressed air is supplied from a cartridge 6 supported in a container formed in two parts 1, 2 screwed together so that a cutter 15 carried by the upper part pierces the cartridge. The air flow is controlled by an annular valve 24 held against an elastic seat 23 by a spring and opened by pressing its stem down by a knot 40 ; a disc 26 on the stem forms a guide and is loose enough tc allow passage of air An elastic body 4 grips the neck of the cartridge.