baber/WOPTO huggingface dataset:
Patent GB-670430-A (GB)
Title: Improvements relating to the manufacture of cathode ray tubes
Inventor: COLBORNE RONALD HENRY
IPC: H01J29/92
Filed: 1946-06-20
Abstract: 670,430. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 1, 1947 [June 20, 1946], No. 4747/49. Divided out of 670,411. Class 39 (i). A cathode-ray tube has at least a substantial part of its envelope formed of borosilicate glass having a coefficient of expansion of 33- 35 x 10<SP>-7</SP> approximately, and metal leads having a coefficient of expansion of the order of 49Î10<SP>-7</SP>connected to electrodes sealed in a disc-like glass seal formed of glass having a coefficient of expansion of approximately 47 x 10<SP>-7</SP> or higher, the seal being sealed in the first glass-part by means of at least one additional part of glass having an intermediate coefficient of expansion. In an example the metal and glasses used are identical with those used in the example described in Specification 670,411 which is referred to. Reference has been directed by the Comptroller to Specification 420,634 and to the document " Technical Data on Chance Sealing Glasses (Chance Bros., Ltd., Smethwick, 1944)."
Patent GB-944638-A (GB)
Title: New salts of 1,5-bis(4-amidinophenoxy)-pentane
IPC: C07F9/70
Filed: 1962-02-07
Abstract: The invention comprises the meso and racemic forms (forms A and B respectively) of 1, 5-bis (4-amidinophenoxy) - pentane 2 - (4 - melaminylphenyl)-1, 3, 2-dithioarsolane dicarboxylates of formula: <FORM:0944638/C2/1> They may be prepared by reacting in a liquid medium (preferably water) a salt of 2-(4-melaminylphenyl) - 4, 5 - dicarboxy - 1, 3, 2-dithioarsolane form A or form B (e.g. an alkali metal salt) and a salt of 1, 5-bis (4-amidinophenoxy) pentane, or by reacting the free compounds with each other in an organic solvent such as dimethylsulphoxide.  The above compounds possess chemotherapeutic properties and may be used as trypanocidal preparations together with a pharmaceutical carrier.  Parenteral preparations may be made as sterile aqueous or non-aqueous solutions, suspensions or emulsions.  Specified carrier media include propylene glycol, polyethylene glycol, vegetable oils such as olive oil and injectable esters such as ethyl oleate.  Other adjuvants such as wetting, emulsifying and dispersing agents may be present.
Patent GB-1470021-A (GB)
Title: Concrete weight for submarine pipe-lines
IPC: F16L1/24
Filed: 1975-02-05
Abstract: 1470021 Concrete weights for submarine pipe-lines LILLA EDETS CEMENTGJUTERI BRODERNA ANDERSSON 5 Feb 1975 [12 Feb 1974] 4868/75 Heading F2P A concrete weight for submarine pipe-lines comprises two parts 10A, 10B having complementary recesses 11 to receive a pipe-line 12 between them. A resiliently compressible lining 13 is disposed between the pipe-line and the weight parts to protect the pipe line from damage and also to urge the parts into locking engagement with two U-shaped clamps 17, having webs 18 and legs 19, which hold the parts 10A, 10B together around the pipe-line. The clamps may be made of reinforced concrete and the lining may be of rubber of plastics.
Patent GB-212391-A (GB)
Title: Switch-gear and switch-board to interpose into any direct electric current light or power circuit, electric accumulators to be charged
IPC: H02J7/14
Filed: 1923-02-20
Abstract: 212,391. Price, W., and Price, M. Feb. 20, 1923. switchboards for charging storage batteries from lighting circuits comprise three switches c, d, e and an ammeter g. The switches are simultaneously operated by a common handle f so that the battery j is included in or excluded from the lighting circuit without interrupting the current through the lamps.
Patent GB-271820-A (GB)
Title: Improvements in sheet piling
IPC: E02D5/08
Filed: 1927-02-22
Abstract: 271,820. Soc. Anon. d'OugrÚe Marihaye. May 31, 1926, [Convention date]. Piling.-A sheet piling element of Z shape comprises two simple sections placed alternately on one side and the other of the neutral axis and assembled by means of an intermediate assembling section. The sections 1 are U-shaped as shown, with the branches sloping slightly out. ward. The edges 3 of the section may be thickened or claw shaped and adapted to slide in channels in the assembly section 2 or otherwise engage therewith. Sheet piling elements are formed by assembling together two such simple sections by means of an assembling section and attaching a second assembling section to the free edge of one section. The assembling sections 2 may be secured by compression, riveting or keying.
Patent GB-721295-A (GB)
Title: Pyridine carboxylic acid derivatives
IPC: C07D213/80
Filed: 1952-02-26
Abstract: The invention comprises 2-methyl-3-acetyl-4 : 5 : 6-pyridinetricarboxylic acid and tri-esters, especially the lower alkyl, e.g. ethyl, esters thereof.  It also comprises the processes of preparing these esters and acids and converting them to 2-methyl-3-acetyl-4 : 5-pyridine dicarboxylic acid by reacting an ester of a -keto-g -alkoxyaconitic acid (which may be obtained by condensing an ester of oxalacetic acid with an ester of an a -trialkoxyacetic acid in the presence of a lower aliphatic acid anhydride) with iminoacetylacetone CH3.C: (NH).CH2.CO.CH3 to give an ester of 2-methyl-3-acetyl-4 : 5 : 6-pyridine-tricarboxylic acid which may be hydrolysed to the free acid and, if desired, heated to give the 4 : 5-pyridine di-acid.  In examples: (1) ethyl triethoxy acetate is reacted with diethyl oxalacetate in the presence of acetic anhydride and the resulting ethyl a -keto-g -ethoxyaconitate is treated with iminoacetylacetone to give triethyl 2-methyl-3-acetyl-4 : 5 : 6-pyridine tricarboxylate; and (2) the product of (1) is hydrolysed to 2-methyl-3-acetyl-4 : 5 : 6-pyridine tricarboxylic acid which is dissolved in diethylene glycol diethyl ether and heated to give 2 - methyl - 3 - acetyl - 4 : 5 - pyridinedicarboxylic acid. Specifications 629,450, 712,511 and 721,299 are referred to.
Patent GB-248371-A (GB)
Title: Improvements in or relating to spraying nozzles
IPC: B05B15/74
Filed: 1926-02-22
Abstract: 248,371. Elder, D. Feb. 28, 1925, [Convention date]. Jet nozzles; nozzles with cut-off devices.-A spray-producer for giving an even distribution of water over an area of semicircular or quadrant shape so that it may be used at the edge or corner of a lawn to spray the surface missed by a circular sprayer, comprises a closed cylindrical tube 1, Fig. 3, having a V-shaped gap 3 in the side the upper wall 4 of the gap being curved towards its side edges. If a semicircular distribution is required the end of the gap terminates just clear of the bore; if however a quadrant shaped area is to be sprayed the depth of the gap is correspondingly shortened. The gap may first be cut by a rotary cutter into the form shown in Fig. 3 and the corner filled in by metal wedges 6, Fig. 4. The nozzle may be fitted to a ground level valvular spraying device controlled by the water pressure, in which case it extends through a cylindrical casing 7, Fig. 1, screwed in a T piece 8 and has at the top a mushroom valve 19 fitting a seating 9 formed in the casing 7. The inner end of the nozzle screws into a cylindrical nut 10 against which bears a spring 11. The nozzle may also be mounted in a nut to screw on a fixed or rotary standard sprayer.
Patent GB-1330265-A (GB)
Title: Process for the preparation of nitriles from organic carboxylic  acids and organosilylamines or silazanes
IPC: C07D213/84
Filed: 1972-02-03
Abstract: 1330265 Preparation of nitriles RHONEPOULENC SA 3 Feb 1972 [4 Feb 1971] 5141/72 Heading C2C [Also in Division C3] Nitriles are prepared from carboxylic acids by reacting the latter with a primary silylamine or linear or cyclic silazane containing a group in the presence of a Lewis acid as catalyst. Preferably the silylamine or silazane is one having the general formulµ in which R, which may be the same or different, represents an alkyl, alkylphenyl or phenylalkyl group where the alkyl group or portion is straight or branched and contains 1 to 12 carbon atoms or a cycloalkyl group of 5 to 6 ring carbon atoms or a phenyl group, n=0 or an integer of 1 to 100 and m = 3, 4 or 5. Examples are given of the preparation of acetonitrile, phenylacetonitrile, o-, and p-hydroxy-benzonitrile, 4-cyanopyridine and terephthalonitrile.
Patent GB-1180553-A (GB)
Title: Improvements in or relating to Door Catches
Inventor: JAMES MICHAEL JOSEPH
IPC: E05B15/04
Filed: 1966-02-05
Abstract: 1,180,553. Catches. MICRO & PRECISION MOULDINGS (CHELTENHAM) Ltd. 3 Feb., 1967 [5 Feb., 1966], No. 5163/66. Heading E2A. A roller door catch comprises a housing 1 in which a plunger 3 is slidably mounted, the plunger being spring loaded to a position in which a roller 4 at the outer end of the plunger projects from the housing for engagement with a keeper mounted on the door frame, the plunger is mounted in the housing with a degree of free angular play about its longitudinal axis and is screw-threaded for engagement by a stop member 10 formed with a clutch face 13 for frictional engagement with a fixed clutch face, such engagement acting to limit outward movement of the plunger under the spring loading thereof, a fixed stop face 23 in the housing being engageable by the stop member on inward movement of the plunger to prevent further inward movement of the stop member, and the frictional engagement of the clutch faces under the spring loading being such that the clutch slips at a lower torque than that necessary to screw the stop member up the thread, i.e. in a direction to withdraw the plunger into the housing against the spring loading, but at a torque greater than that applied to the stop member as a result of the plunger turning in a direction to increase the projection from the housing. In the construction shown the clutch faces are of mating frusto-conical shape to provide a cone clutch arrangement, the plunger has a hollow stem formed with an internal screw thread and the stop member is in the form of a headed stud which screws into the stem with the undersurface of the stem providing the clutch face 12. The fixed stop face 23 is provided by an inner end wall of the housing and the head of the stop member has a central domed projection which engages the end wall. The fixed clutch face is provided at the inner end portion of a tubular abutment member 8 which fits in the housing and has lateral locating projections which snap into locating apertures 20 in the housing to retain the abutment member in position during assembly, the abutment member being inserted through the outer open end of the housing. The abutment member is provided with limiting abutments 16 and the plunger is provided with diametrically opposed projections 17 to provide a limit for the maximum outward projection of the roller.
Patent GB-464366-A (GB)
Title: Improvements in television systems
IPC: H04N3/08
Filed: 1936-02-20
Abstract: 464,366. Television. MAGUIRE, I. L. Feb. 20, 1936, No. 5169. Convention date, Feb. 20, 1935. [Class 40 (iii)] In a television-scanning system the light from a single source L<1> is divided, e.g. by reflectors A, B, C, Fig. 10, to yield a number of beams a, b, c, which are directed towards the axis of rotation of reflectors K, L, M, N, and which have imparted to them dissimilar angular velocities in two directions, preferably at right-angles, with the result that a screen or subject of transmission S is scanned by the beams in cyclic order in a series of substantially parallel lines. In the arrangement shown the reflectors A, B, C are given an oscillatory movement at a uniform angular velocity, while the reflectors K ... N are rotated uniformly in one direction, both sets of reflectors being mounted upon a common base 12, Fig. 2. The rotary reflector RD comprises an apertured metal or glass casing 47, fitted with a series of double -sided reflectors 52 and mounted upon a base 48, which is rotated by a shaft 51. Each of the mirrors 13 is adjustably supported upon a plate 19, and all the plates 19 are adjustably mounted in a cranked carrier 31, which is pivotally supported in bearings 32 and is connected at its lower end to an arm 45. This arm 45 is pivotally connected to a suspended frame 41, which is given an oscillating movement of uniform angular velocity by a rotating cam 40, a spring 41a maintaining the cam 40 and frame 41 in contact. For the purpose of adjusting the mirror 13 relative to its plate 19, the mirror is secured by clips 15 to a back-plate 16, which is mounted on the plate 19 by means of a ball joint 17. Tilting of the reflector 13 about the ball 17 is effected by a ball-headed rod 21 co-operating with an adjusting cam 27 and a control spring 25.
Patent GB-1222978-A (GB)
Title: High temperature lubrication by polymer gels
Inventor: LUBOWITZ HYMAN RALPH
Filed: 1968-02-01
Abstract: 1,222,978. Poly(metal acrylate) lubricants. TRW Inc. 1 Feb., 1968, No. 5194/68. Heading C3P. [Also in Divisions C2 and C5] Aqueous gels of homopolymers or interpolymers of a metal acrylate or acrylates selected from calcium, barium, magnesium and manganese acrylates are used as lubricants in hightemperature metal working (see Division C5). The diluent medium of the gel may be water alone or aqueous polyvinyl alcohol. The preparation of polycalcium acrylate is described by polymerizing the monomeric salt in aqueous medium using t.-butyl perbenzoate catalyst. The product obtained is then converted into an aqueous gel. (Polymers of copper, cobalt and tin acrylates are also disclosed as comparison lubricants.)
Patent GB-475952-A (GB)
Title: Improvements in and relating to telephone systems
IPC: H04M9/00
Filed: 1936-02-20
Abstract: 475,952. Exchange systems. AUTOPHON AKT.-GES. Feb. 20, 1936, No. 5215. Void. Convention date, Feb. 20, 1935. [Class 40 (iv)] A local battery switchboard, such as a field switchboard, is associated with certain lines at the main frame of an automatic or other exchange by means of an auxiliary device comprising two position keys OB, Wand D, V, push-button keys M, drop indicators FKl and indicators SZ as shown in Fig. 3, so that they may communicate via the automatic apparatus if it is still working or via the local battery switchboard and so that lines connected to the local battery switchboard can be extended via the automatic apparatus. The auxiliary device is connected in by means of plugs of the type in common use for associating test apparatus. In a simplified arrangement, Fig. 2 (not shown), certain lines are automatically connected to the emergency switchboard when the exchange is destroyed. The description is imperfect. Circuit arrangements. (1) Calls originated by automatic subscriber. With the keys in the normal position as shown, the looping of the line Zt energizes A which energizes C. As a result, the indicator Sz is operated and an impulse is given over the wires zKS to operate one of the drop indicators in the local battery switchboard (not shown). The attendant may then (a) extend the call over the local battery switchboard or (b) operate the key D to give the subscriber control of the automatic switches in the ordinary way in which case the relapse of A, C puts the indicator Sz into the line to give supervisory signals to the operator of the auxiliary device who can also listen-in with the aid of the key M, or (c) operate the key to associate the dial AAG with the automatic exchange apparatus, establish a connection over such apparatus and hold it by throwing key V while the calling subscriber is recalled if necessary. (2) Calls originated by local battery sets connected to automatic exchange lines. In this case key OB is thrown and the line appears in the local battery switchboard in the ordinary way. The call can be extended over the automatic switches as described under 1 (c) above. (3) Calls originated by lines on the local battery switchboard are established over the automatic apparatus as described under (2) above. (4) Calls from the automatic apparatus operate the drop indicator FKL and can be extended by the key V to the line ZT, a further contact of V operating the ring-trip relay.
Patent GB-694105-A (GB)
Title: Improvements in or relating to power transmission friction couplings
IPC: F16D13/75
Filed: 1950-03-02
Abstract: 694,105. Clutches. BINDER, R. March 2, 1950, No. 5251/50. Class 80 (ii). Automatic adjustment for wear in a friction clutch is effected by means of co-operating wedge members 5, 7, Fig. la, between the pressure plate 1 and the operating levers 4. When the clutch is disengaged against the usual springs the wedge 7 under the action of a spring 8 locks the member 5 in a hole 20 of the plate 1 to enable the member 5 to withdraw the plate. On engagement of the clutch the wedge 7 is released by an abutment 9 thereon coming up against a stop 10 so that relative movement between the plate 1 and the member 5 is allowed to take up any wear. In a modified arrangement, Fig. 2a, a locking ring 13 co-operates with a bolt 14 secured to the pressure plate 1 to lock thereon when engaged by the operating lever 4 for clutch disengagement and to be released when the clutch is engaged by coming up against an abutment 17. Specification 694,106 is referred to.
Patent GB-129946-A (GB)
Title: Improvements in Cinematograph Projectors.
Inventor: ROYLE THOMAS
IPC: G03B9/10
Filed: 1918-11-06
Abstract: 129,946. Royle, T., and Whitehead, W. Nov. 6, 1918. Kinematograph apparatus.-For the purpose of correctly adjusting the shutter blades b in relation to the film feed, the blades are mounted on one part d of a ratchet clutch which is held by a spring e in engagement with the other part c secured to the rotating shaft a.
Patent GB-1467021-A (GB)
Title: Synthetic paper
IPC: C08J5/18
Filed: 1976-05-18
Abstract: 1467021 Polystyrene films L S MACLEOD 18 May 1976 5485/73 Heading C3P Synthetic paper is made by applying a solvent to both faces of an expanded polystyrene sheet, steam heating the sheet and compressing it into a film. The solvent may be a mixture of equal parts by volume of acetic acid and ethyl alcohol or of malt vinegar and methylated spirit or may be a solvent of the type used in spray-on polishes. It may be applied to the expanded sheet by spraying.
Patent GB-778321-A (GB)
Title: Improvements in suction hoods
Inventor: PALMER JAMES MORRIS
IPC: B28B17/04
Filed: 1955-02-24
Abstract: 778,321. Confining dust generated in industrial processes. BRITISH CERAMIC RESEARCH ASSOCIATION. Feb. 23. 1956 [Feb. 24, 1955], No. 5513/55. Class 8(2) A suction hood suitable for use in fettling ceramic ware comprises a grid 12 located above a drawer 11 into which heavy particles from the workpiece (not shown), fall, a rear plate 16 of transparent material e.g. glass having a forwardly extending roof 17 -through which the operator can view the workpiece from above, and an exhaust mouth 20 forming one side of the hood. the opposite side and the front being open to allow the operator to gain access to the workpiece. The grid 12 is surrounded by a flange 18 serving to deflect large particles into the drawer 11, and the suction mouth 20 has a plurality of flow equalizing baffles 23, Fig. 2 (not shown).
Patent GB-563003-A (GB)
Title: Improvements in or relating to grip-and-release devices
IPC: B64D1/06
Filed: 1943-04-08
Abstract: 563,003. Fastenings; hooks. GOODE, J. A. R., and WORTMAN, B. April 8, 1943, No. 5653. Addition to 534,331. [Classes 44 and 89 (ii)] In a device as in the parent Specification, the slide member 3a or the upper part thereof is divided into two separate parts by afixedweb 15 between the plates 12, 13 and the member may be in in two parts 3, 3a connected by springs 17. The actuating lever 5 may be replaced by a plunger moving in a cylinder separate from the device, and the slide may work on the outer sides of the levers.
Patent GB-170793-A (GB)
Title: Improvements in and relating to convertible domestic fireplaces and cooking stoves
IPC: F24B1/182
Filed: 1921-02-18
Abstract: 170,793. Flavel, P. W. Feb 18, 1921. Combined or convertible open fire-places and cooking-stoves; combined solid and other fuel stoves; dampers; grates; boilers.-In a combined open fireplace and cooking-stove with oven above the fireplace, the hot-plate 1, which is raised about trunnions 7 in order to give the open-fire position, is provided with horns 3 engaging a sliding back plate 2, which, in the open-fire position, thus closes the flue 4 at the back of the fire and opens an outlet 6 at the top and in the close-fire position reverses these arrangements. As shown in Fig. 2, the horns 3 are outside the flue and thus clear of the smoke &c. An L-boiler 9 has a front wall sloping forwardly so as to be in contact throughout its whole height with the hot gases, and has a toe projecting into the fire. To facilitate removal, pipe unions 10 are fitted outside the flue and exposed by removing the side front plates. The side hobs 14 contain gas burners, the left-hand hob being shown for boiling and the right-hand hob arranged as an oven. Covers 12 may be swung forward to serve as trivets. Removable fire-cheeks 19 have vertical slots 21 receiving air from horizontal grooves at the back of the cheek.
Patent GB-1483445-A (GB)
Title: Electroconductive coating colour formulations
IPC: G03G5/10
Filed: 1976-02-13
Abstract: 1483445 Electroconducting compositions CALGON CORP 13 Feb 1976 05824/76 Headings C3P and C3R Electroconductive coating compositions comprise (1) 15 to 50 weight per cent of a watersoluble electroconductive polymer, (2) 30 to 70 weight per cent of a water-soluble non- conductive film-forming polymer binder, (3) 10 to 60 weight per cent of a pigment and (4) 0À5 to 10 weight per cent of a phosphate ester (C m F 2m+1 C n H 2n-p X p O) y PO(OM) 3-y  where m is 4 to 10, n is 1 to 11, y is 1 or 2, M is a watersolubilizing cation, e.g. an alkali metal, ammonium or substituted ammonium cation, X is a polar group and p is 0 or 1. The binder may be a vinyl alcohol or vinyl acetate polymer, styrene/ butadiene copolymer latex, starch, modified starch or protein. The conductive polymer may be an ammonium, phosphonium or sulphonium polymer, polysulphostyrene, polyallyl sulphonic acid, sulphonated urea/formaldehyde resin or sulphonated polymethylol acrylamide. When the binder comprises polyvinyl alcohol melamine is preferably included as cross linking agent. The phosphates increase the holdout properties of the compositions which may be used to prepare electroconductive substrates for electrophotographic reproduction papers. Examples describe compositions comprising polydimethyl diallyl ammonium chloride, polyvinylbenzyl trimethyl ammonium chloride or polyepichlorohydrin quaternized with trimethylamine, together with polyvinyl acetate, polyvinyl alcohol, melamine, calcium carbonate and diethanolamine salts of mono- and di-C 8-18  fluoroalkyl phosphates.
Patent GB-1107671-A (GB)
Title: Improved agricultural product distributor
IPC: A01C7/08
Filed: 1966-02-10
Abstract: 1,107,671. Seed or granulated material distributer. SOCIETE D'ETUDES ET DE CONSTRUCTIONS MECANIQUES DE CORBEIL. 10 Feb., 1966 [5 March, 1965], No. 5829/66. Heading A1D. A distributer for seeds or granulated material comprises an endless conveyer belt 10 situated below a hopper 1 which is provided with a slot 3 and a slide 4 for regulating the flow of material to the belt the slide being adjusted by means of a screw 6 and being fixed in an adjusted position by screws 7, 8.