baber/WOPTO huggingface dataset:
Patent GB-215769-A (GB)
IPC: C09B35/26
Filed: 1924-05-07
Abstract: Disazo dyes are prepared by coupling tetrazotized 4 : 41-diaminodiphenylurea-3 : 31-dicarboxylic acid with azo dye components: or 5-nitro-or 5-acidylamino-2-aminobenzoic acid may be diazotized and coupled with an azo dye component, the nitro-group reduced or the acidylamino group saponified, and the aminoazo dye treated with phosgene.  Dyeings made with the products may be after-treated with a metallic salt.  In an example the tetrazo compound is coupled with 1-m-aminophenyl-3-methyl-5-pyrazolone; the product dyes cotton yellowish-red shades changed into fast orange shades by after-treatment with copper sulphate; the mixed dyestuffs from the tetrazo component 1-phenyl-5-pyrazolone-3-carboxylic acid and acetoacetic-o-anisidide, or from the tetrazo component, acetoacetic anilide-p-carboxylic acid, and acetoacetic-o-anisidide yield on cotton yellowish-red and yellow shades respectively, changed to brown and greenish-yellow respectively by after-coppering.  4 : 41-Diaminodiphenylurea - 3 : 31 - dicarboxylic acid is obtained by treating m-aminobenzoic acid with phosgene, nitrating, and reducing.
Patent GB-551759-A (GB)
Title: Improvements in or relating to apparatus for the control of the ignition of an internal combustion engine
IPC: F02P5/00
Filed: 1941-09-05
Abstract: 551,759. Timing ignition ; regulating. NAPIER & SON, Ltd., D., HALFORD, F. B., and CATFORD, A. L. Sept. 5, 1941, No. 11346. [Classes 7 (iv) and 7 (vi)] [Also in Group XXIX] Variations in the ignition timing are effected either bv movement of a hand lever or automatically by movements derived from a capsule sensitive to fluid pressure, the change-over taking place automatically when and continuing while the throttle is fully opened. As shown, a hand lever A is mounted on a rotatable shaft A<SP>1</SP> connected by an arm B and link C to an arm D on the shaft of the throttle D <SP>2</SP>. An arm B<SP>1</SP> on the shaft A<SP>1</SP> is connected by a link E to a bell-crank F pivoted on the rod G of a piston G<SP>1</SP> movable in a cylinder G<SP>2</SP>. The arm F<SP>2</SP> of the bell-crank F acts on the spindle M of a capsule K, a pin M<SP>1</SP> on the spindle engaging a Z-shaped slot N in a lever N<SP>1</SP> pivoted at N2. The lever actuates the valve of a servo device O acting through a shaft P, quadrants P\ Q and a lever and link Q<SP>2</SP> on the cage Q<SP>3</SP> of a bevel pinion Q<SP>4</SP> meshing with bevel wheels R2, Sl through which is driven the shaft S of a distributor T and magneto U. Normally the handle A acts through the mechanism described to adjust the timing of the shaft S. When the throttle D <SP>2</SP> is fully opened, the arm D moves a valve J whereby pressure liquid is admitted through a pipe H to depress the piston G<SP>1</SP> against a spring G<SP>3</SP>. The arm F<SP>2</SP> ceases to act on the spindle M, which is then actuated by the capsule K in dependence on changes of atmospheric pressure, the pin M<SP>1</SP> acting in the lower part of the slot N. Modifications in the details of construction are indicated in the Provisional Specification.
Patent GB-975533-A (GB)
Title: Improvements in percussion drills
IPC: E21B17/04
Filed: 1962-03-26
Abstract: 975,533. Percussive drills. UDDEHOLMS A.B. March 26, 1962 [May 15, 1961; Dec. 22, 1961], No. 11379/62. Heading B4C. A tool bit comprises a non-circular shank 3 having a conical portion 5 merging into a collar 2 at a radiused surface 8. The length of the conical portion is prerefably not more than one half of the length of the shank. The shank fits into a chuck sleeve 4 having a correspondingly shaped conical portion 6.
Patent GB-591372-A (GB)
Title: Adhesive sheets
IPC: C09J7/21
Filed: 1945-05-04
Abstract: In adhesive sheets, synthetic rubber compositions are used as "barrier" coats between the porous backing and the adhesive, as described in Group VIII.  The compositions specified are: (1) butadiene-styrene copolymer Mooney value 85 to 90, calcium carbonate, coumarone-indene resin, unsaturated hydrocarbon of fluid consistency which is omitted where coumarone-indene resin is used with a melting point below 150 DEG  C.; (2) butadienestyrene copolymer Mooney value approximately 50, zinc oxide, hydrogenated rosin glyceride, petroleum hydrocarbon oil, largely alicyclic, pentamethylene thiuram tetrasulphide, butyl zimate; butyl rubber, ester gum, calcium carbonate, petroleum hydrocarbon oil, largely alicyclic, beeswax, p-quinone dioxime, lead dioxide.  The last two compositions may be cured on a mill by steam for 20 to 40 minutes.ALSO:In adhesive sheets, synthetic rubber compositions are used as "barrier" coats between the porous backing and the adhesive, as described in Group VIII.  The compositions specified are Example 1, Polychloroprene of extra high molecular weight and Mooney value of 75-100, 57 per cent., magnesium oxide, 14 per cent, clay 29 per cent; Example 2, Butadienestyrene copolymer, Mooney value 85 to 90, 30 per cent, calcium carbonate 60 per cent., coumarone-indene resin (Nevillite No. 123), 5 per cent, unsaturated hydrocarbon of fluid consistency (Naftolen R-100), 5 per cent, the Naftolen may be omitted where coumaroneindene resin is used with a melting point below 150 DEG C; Example 3, Butadiene-styrene copolymer Mooney value approximately 50, 47.58 per cent., zinc oxide 32 per cent, hydrogenated rosin glyceride (Staybelite Ester No. 10), 12.5 per cent., petroleum hydrocarbon oil, largely alicyclic (Arco-Lite oil), 8 per cent., Pentamethylene thiuram tetrasulphide (Tetrone A), 0.21 per cent., Butyl zimate (Butasan), 0.21 per cent., and Example 4, Butyl rubber 36.5 per cent, Ester gum, 14.5 per cent., Calcium carbonate, 36.5 per cent., Petroleum hydrocarbon oil, largely alicyclic, 9.5 per cent., Beeswax 1.5 per cent., p-quinone dioxime 0.6 per cent., Lead dioxide 0.9 per cent.  Examples 3 and 4 may be cured on a mill by steam for 20 to 40 minutes.
Patent GB-1170336-A (GB)
Title: Lincomycin Derivatives
IPC: C07H15/16
Filed: 1967-03-10
Abstract: 1,170,336. Lincomycin-2-acylates and intermediates therefor. UPJOHN CO. 10 March, 1967 [1 April, 1966; 27 July, 1966], No. 11440/67. Heading C2C. Lincomycin-2-acylates (claimed as novel when the acyl group is derived from a C 14-18  aliphatic carboxylic acid) are prepared by condensing lincomycin with an aromatic aldehyde or a vinylog thereof to produce a novel 3,4-O- aralkylidene -, - aralkenylidene - or - heterocyclyl - methylene - lincomycin, tritylating with a trityl halide or substituted trityl halide to form the corresponding novel 7-O-trityl compound, acylating to give the corresponding novel 2-acylate, and removing the protecting groups by mild acid hydrolysis or hydrogenolysis. Acid-addition salts of the intermediates and final products are described. The acylates are derived from hydrocarbon carboxylic acids optionally substituted by halogen, NO 2 , NH 2 , CN, CNS or C 1-8  alkoxy. The novel lincomycin-2-acylates may be made up into anti-bacterial compositions with suitable carriers.
Patent GB-142460-A (GB)
Title: Improvements in carburetters
IPC: F02M19/035
Filed: 1920-04-24
Abstract: 142,460. Schaefer, J. April 25, 1919, [Convention date]. Spray carburettors.-The fuel passage 4 is provided with a metering orifice k<1> and terminates in a nozzle i situated in a mixing- chamber 9 formed in the under surface of a choke-tube h, the outlet h<1> from the chamber being approximately equal in size to the orifice k<1> and leading to a flared conduit provided with flared ports 8 for the admission of secondary air. Primary air reaches the chamber 9 through sectorshaped ports 7 and apertures 2. Air is supplied to the ports 8 through ports 1 is the casing t and an annular passage 3 formed around the choke tube, the ports 1 being controlled by a sleeve d which is set by hand but is pushed down by cams on the throttle spindle b to close the ports 1 as the throttle is closed. Fuel is supplied to the passage 4 through inclined passages 5, 6 leading from a float chamber r, the supply of fuel to which is controlled by a conical valve p, which may be grooved, carried by a float f. The rozzle, i, washer k, and choke-tube h may be replaced by others with different sized bores. According to the Specification as open to inspection under Sect. 91 (3) (a) a choke-tube constructed as shown on the drawing may be arranged between the throttle and the upper part of the choke-tube of an ordinary carburettor. This subject-matter does not appear in the Specification as accepted..
Patent GB-749910-A (GB)
Title: Improvements in motors actuated by gaseous fluid pressure
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: B60S1/10
Filed: 1953-04-27
Abstract: 749,910. Gaseous-pressure engines; valve gear. LAYCOCK ENGINEERING, Ltd. Feb. 12, 1954 [April 27, 1953], No. 11519/53. Classes 122(2) and 122(3) In a gaseous-pressure fluid motor for a windscreen wiper in which a drive unit adapted to carry the wiper blade is oscillated in a housing 4 by opposed pistons reciprocated in a cylinder 3 in the housing to and from which fluid is admitted and exhausted by a secondary valve positioned by fluid pressure controlled by a primary valve actuated mechanically from the drive unit, the primary and secondary valves are contained in a reversing valve unit 26 having a flat face 33 jointed to a corresponding flat face 5 on the housing 4 by a gasket 34 having therein two slots 35, for the passage of fluid, each extending from one of two spaced ports 32 in the valve unit face controlled by the secondary valve' to one of two more widely spaced ports 36 in the housing face which communicate with passages 37 leading to each end of the housing Piston leathers 19 are secured by junk plates 20 to the ends 2 of the motor body 1 which has teeth 7 engaging a pinion 8 on a wiper blade carrying spindle 11 and is cushioned at each end of its stroke by cork discs 21 in recesses in the cylinder ends 22 beneath rubber gaskets 23. The reversing valve unit 26 is actuated by a control rod 25 which projects therefrom through a slot 34A in the gasket 34 and a slot 27 in the housing 4 into a registering groove 28 in the body 1 and is engaged toward each end of the stroke of the body by adjustable stops 24 secured to the body by grub screws 31 and located in an undercut portion 29 of the groove 28 which is widened at each end 30 for insertion of the stops 24. Compressed air is directed alternately, by the valve unit, to either end of the housing 4 through ports 32 and passages 37 in the housing, each gasket 23 having a notch 39 therein to connect the ends of the passages 37 to the interior of the cylinder 3. Exhaust air from the cylinder ends flows via the valve unit, slots 27 and 28, and the clearance 41 around the body 1 to an exhaust port in the central portion of the housing. Compressed air is supplied to the valve unit at 31 for normal running and at 45 for parking. The motor may be steam driven. Specifications 687,974, 749,911 and 749.912 are referred to.
Patent GB-289030-A (GB)
Title: Improvements in electric resistances
IPC: H01C13/02
Filed: 1928-04-20
Abstract: 289,030. British Thomson-Houston Co., Ltd., (Assignees of Jones, H. A.). April 20, 1927, [Convention date]. Drawings to Specification. Wire resistances, enclosed.-A ballast resistance of the type comprising a wire in an enclosure containing a gas such as hydrogen or helium at a low pressure is provided with two or more wires of different materials, such as iron and nickel, connected in series, the temperature ranges over which the two wires have a ballast action continuing each other.
Patent GB-542581-A (GB)
Title: An improved amphibious armoured vehicle
IPC: F41H7/02
Filed: 1940-07-13
Abstract: 542,581. Vehicle body mountings. GIBBS, G. M., and TUSTING, T. R. July 13, 1940, Nos. 11687/40, 12535/40 and 4019/41. [Class 108 (ii)] [Also in Groups XXXIII and XXXI] A self-propelled amphibian vehicle is fitted with wheels 3 for the normal propulsion of the vehicle either on land or in water and with a series of endlees tracks 20, 21 adapted to propel the vehicle over soft terrain on which the wheels 3 would not function. As shown the wheels 3 are accommodated in recesses R on each side of the body 1 and are fitted with vanes or paddles 16 for water propulsion, while the body is preferably pivotally supported with respect to the wheels by means of rollers 5 on a frame 6 engaging internally with an annulus 4 on each wheel. The annuli are furnished with teeth so that they may be driven from a motor 7 through gearing 10, 11, 12, 14, clutches being interposed so that the wheels can be independently driven for steering purposes. The frames 6 are preferably vertically adjustable on guides 24 so that they may be raised prior to bringing the endless tracks 20, 21 into use. These tracks 20, 21 preferably extend across substantially the entire width. of the vehicle and comprise a number of tracks 20 of almost the same length as the body 1 and a number of shorter tracks 21 located in line with the recesses R. For balancing purposes when running on land a retractable auxiliary supporting wheel 17 may be mounted at one end of the body 1. An additional propeller 15 may also be fitted for propelling the vehicle in water. In a modification each side wheel 3 is replaced by a pair of wheels mounted on a frame in tandem.
Patent GB-1411282-A (GB)
Title: Capacitor assembly
IPC: H01G4/06
Filed: 1972-03-14
Abstract: 1411282 Capacitors LUCAS ELECTRICAL CO Ltd 28 Feb 1973 [14 March 1972] 11718/72 Heading H1M A capacitor comprises an insulating body 11 carrying a conductor assembly consisting of terminals 14, 16 accessible at different ends of the body and electrically linked by conductor 15, terminals 14, 16 being constructed so as to releasably engage respective mating counterparts, the capacitor being constituted by adjacent portions of terminal 14 and a conductive ring 18 on the exterior surface of body 11. As shown, terminals 14, 16 are of complementary form, so that the capacitor can be interposed between a pair of similar terminal members, e.g. in the output circuit of an ignition coil for making voltage measurements &c. Body 11 may be polycarbonate, polypropylene, glass-filled nylon or polyethylene terephthalate. An outer casing 21 is moulded about body 11, being formed so as to retain the complementary arrangement of the terminals and may be of flexible material, e.g. polyurethane. As shown conductive link 15 is a rivet. Alternatively (Fig. 2, not shown) it may have a threaded portion and carry a nut in a cavity in body 11, the nut being prevented from rotating so that it may move axially along the threaded portion to adjust the capacitance value. In another embodiment (Fig. 3, not shown) the axes of the terminal members 14, 16 are at right angles.
Patent GB-1417773-A (GB)
Title: Fixing device for a component of a system
IPC: B64G1/66
Filed: 1973-03-12
Abstract: 1417773 Resilient mountings ENGINS MATRA 12 March 1973 [14 April 1972] 11726/73 Heading F2S [Also in Division G2] An assembly comprises a support 11 and a component 10 connected to the support 11 by at least three strip like springs 12 having parallel longitudinal axes and each having one end with a rigid connection and the other end with a swivelling connection, the springs being so distributed and angularly positioned that they allow for differential contraction and expansion of the component 10 and the support 11. The assembly may have three springs 12, equispaced around and tangential to a reference circle. The springs 12 may be rectangular or trapezoidal. In the embodiment described, the component 10 is a primary mirror in a telescope and the support 11 is a structural element of a satellite.
Patent GB-256323-A (GB)
Title: Improvements in or relating to holders for thermionic valves
IPC: H01R33/76
Filed: 1925-05-06
Abstract: 256,323. Igranic Electric Co., Ltd., and Dandridge, G. F. May 6, 1925. Vacuum tubes. - A valve-holder comprises tubular sockets mounted on an insulating body which is supported from a base by cantilever springs. As shown, an insulating disc 2 has sockets 1, each formed with a shoulder for clamping one end of a flat spring 4 of elbow shape, the other end of which is secured on a projection 6 on a base 3 by a bolt 7, which also serves to secure a cover 10, and carries a lead 13. An annular rim 19 limits the movement of the disc. In a modification the bolts pass through the panel 18, and the leads are secured to the bolts behind the panel. The springs may be formed with a U-shaped bend at the elbows to increase their resiliency. According to the Provisional Specification a stiff wire may be used instead of a flat spring, or the sockets may be mounted in a rubber disc clamped at the edge between parts of a casing. Reference has been directed by the Comptroller to Specifications 222,086 and 240,918.
Patent GB-811817-A (GB)
Title: Improvements in or relating to electrical delay lines
IPC: H01P9/02
Filed: 1957-04-11
Abstract: 811,817. Delay lines. INTERNATIONAL RESISTANCE CO. April 11, 1957 [April 12, 1956], No. 11909/57. Class 40 (8). A delay line comprises an elongated core 10 carrying at least one strip 12 of conductive material which bears an integral layer 14 of dielectric material, the core and the strip being surrounded by a helical winding 16 of insulated wire. The core may consist of a fibrous material impregnated with an artificial resin. The dielectric layer 14 may be a thin film of polyethylene or polytetrafluorethylene bonded to the strip 12. Leads are attached to either end of the strips and the winding. The whole may be surrounded by a protective tube 22 of e.g. glass or plastic. The core and the protective tube may contain magnetically permeable material.
Patent GB-1205693-A (GB)
Title: Voltage sharing or absorbing networks for rectifier circuits
Inventor: KING KENNETH GORDON
IPC: H02M1/088
Filed: 1968-03-12
Abstract: 1,205,693. Converting systems. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. 25 Feb., 1969 [12 March, 1968], No. 11970/68. Heading H2F. A series chain of rectifiers, e.g. semi-conductor controllable rectifiers TRI, TR2, &c. (Fig. 1) is provided with a voltage sharing or absorption network comprising a saturable reactor SR1, SR2 &c., in series with a capacitor C1, C2 &c., across each rectifier. The saturable inductors may have single turn additional windings in series with the rectifiers. The inductors are saturated in such a way that they present low impedance to capacitor currents which assist in voltage absorption, and a high impedance for capacitor discharge currents through the rectifiers when the rectifiers are fired, thereby to limit the discharge current and protect the respective rectifiers. Following turn ON of TR1 for example, SR1 becomes saturated in the opposite direction by the discharge of C1 and this condition is maintained during conduction of TR1 by the additional winding on SR1. Hence the inductor always provides low impedance to reverse voltage steps which may occur at the end of the conducting period of TR1. To assist in reducing reverse voltage transients each inductor may be shunted by a respective resistor of sufficiently high value. Externally applied transients may additionally be suppressed by means, not described, across the entire chain of rectifiers. Reference has been directed by the Comptroller to Specification 1,179,605.
Patent GB-638961-A (GB)
Title: Improvements connected with hinges for doors or the like
IPC: E05D7/06
Filed: 1948-05-01
Abstract: 638,961. Hinges. DAWTREY, C. R. May 1, 1948, No. 11979. [Class 65 (ii)] In a hinge for a door or the like of the kind comprising plates 1 and 2 adapted to lie substantially in the same plane when the door is closed and carrying overlapping members 5 and 7 provided respectively with a ball ended pin 6 and a recess of corresponding form, said members are carried by webs 3 and 4, each of which extends at substantially right angles from the surface of its hinge plate.
Patent GB-1010431-A (GB)
Title: Improvements in or relating to conveying systems
Inventor: JEPSON MICHAEL DENIS
IPC: B65G17/20
Filed: 1962-03-29
Abstract: 1,010,431. Endless conveyers. SPOONER DRYER & ENGINEERING CO. Ltd. June 20, 1963 [March 29, 1962], No. 12010/62. Heading B8A. In a conveyer system having trays 11 swingably connected between a pair of endless chains 10 there is provided at one turn of the conveyer at least, a tray steadying wheel 30 coaxial with a pair of sprocket wheels 18 to positively drive the tray at an angular velocity relative to the wheels 18 such that each tray 11 is maintained in a predetermined attitude as the conveyer changes direction. A plurality of rollers 36 at the periphery of the traysteadying wheel 30 mesh with a sprocket wheel 38 secured to one end of each tray 11. The wheel 30 secured to a gear-wheel 52 is roller mounted on a shaft 32 keyed to the chain sprocket wheels 18. A gear-wheel 44 also keyed to the shaft 32 transmits the drive through keyed gear-wheels 46, 50 to the gear-wheel 52. A single pair of pins 60 eccentrically disposed on the wheel 38, co-operate with suitable guides, e.g. 62, Fig. 2, to control the attitude of the trays 11 on the straight runs of the system. These guides may be used just upstream of the tray steadying wheel 30 to correct the angle of the tray before engagement with the wheel 30. The conveyer may run through a treatment zone 12 in which hot gases are ejected from nozzles 70 to dry-moulded pulp articles being conveyed on the trays 11.
Patent GB-316339-A (GB)
Title: Improvements in the production of kinematograph film positives
IPC: G03B33/00
Filed: 1928-04-25
Abstract: 316,339. Thornton, J. E. April 25, 1928. Kinematograph picture-films; colour photography.-An unperforated blank film, with an adhesive surface on both sides, has superimposed on these sides, simultaneously and in accurate register, two exposed but undeveloped images in sensitized colloid and on temporary porous bases, the triple combination being subjected to baths to develop the two images with removal of the porous bases, the film with the two finished images being subsequently perforated. For a stereoscopic picture of the non-registering type one image may be red and the other green. Monochrome pictures on one side only of the film support may be transferred and treated in the same way. Two undeveloped colloid images for transfer may be on double-width paper positive strip, which is printed by contact-printing or projection from two negatives, one of which is reversed. The two negatives may be on a double-width negative strip. The exposed paper positive is subsequently cut into two sections, and the simultaneous transfer with accurate registration may be effected by apparatus according to Specification 316,388. Subsequent perforation of the final film may also be effected by this apparatus, or alternatively by the method and apparatus of Specification 12230/12, [Class 31 (ii), Punching and perforating machines &c.], involving visual control. The development and after-treatment of the film with the exposed positives thereon may be done with apparatus according to Specification 303,262. For the photographic images on the porous bases, bichromated colloid or gelatin silver emulsion may be used and developed to obtain colloid relief images. The colouring-matter may be incorporated in the colloid or emulsion originally, or colourless images may be produced and coloured subsequently. When printing the sensitized porous strip the margins are given a separate or supplementary exposure to produce insoluble solid relief margins, as described in Specifications 272,986 and 273,056. To assist the adhesion on transfer, the film blank may be preliminarily moistened with water acidulated with acetic acid. Specifications 9324/12; and 14340/12, [Class 97 (i), Optical systems &c.], also are referred to.