baber/WOPTO huggingface dataset:
Patent GB-1143362-A (GB)
Title: Information recording
IPC: B07C3/18
Filed: 1966-03-08
Abstract: 1,143,362. Luminescent coding. AMERICAN CYANAMID CO. 8 March, 1966 [8 March, 1965], No. 10198/66. Heading G4M. [Also in Division C4] At least two luminescent substances capable of emitting radiation in discrete, predetermined and mutually different bands when illuminated with short wavelength radiation, at least one of said substances being a complex of a rare earth metal ion having an atomic number greater than 57, are applied to a substrate in a process of recording information. Preferably the active materials absorb radiation in the U.V. region and emit over different narrow regions of the visible spectrum although X-ray fluorescent materials may be used. The substances may be applied as a coating to form marks. The coated area may be pigmented or clear and may be formed or shapeless. The marks may comprise a sequence of patches (e.g. squares) in a line or a sequence of concentric circles or polygons. They may comprise a clear fluorescent coating in combination with a pigmented character. Each mark may be formed by a single coating with a substance comprising a plurality of active fluorescent materials mixed together or by successive coatings of substances comprising single active materials. In an example, each mark represents a decimal digit according to which of four possible different active materials are present. Other examples refer to the use of six and ten active materials. The ternary rather than the binary system of coding may be adapted if used with a reading device which can distinguish two levels of presence. The marks may be applied for example to cheques, price tags or sacks. The single figure (not shown) illustrates a reading device comprising a quartz U.V. lamp (2), focusing and collimating lenses (3, 5, 7), aperture (4), dispersing element (6) and photomultiplier tubes (8-11) for detecting the presence or absence of four characteristic emitted wavelengths. The reader may be fixed and the documents (12) movable or vice versa or both may be stationary if the reader includes a scanning arrangement such as a movable lamp or pivoted mirror. The dispersing element may comprise a prism or diffraction grating or may be replaced by dichroic mirrors or narrow bandpass filters. The photomultiplier tubes may be replaced by suitable solid state photo-conductive or photo-voltaic devices. Materials referred to as being most suitable are rare earth complexes involving organic chelating ligands (preferably beta-diketones, ortho-hydroxy aromatic ketones or 2,21-bipyridine) with or without synergic agents such as a trialkyl phosphine oxide. Diphenylanthracene is also a suitable material. Rare earths mentioned, together with characteristic wavelengths, are as follows: Pr (0À65Á or 1À047Á), Nd (1À06Á), Sm (0À645Á), Eu (0À613Á), Tb (0À543Á), Dy (0À576Á), Yb (0À971Á), Er (1À54Á) and Tm (1À8Á). Examples are given of suitable film forming compositions including fluorescent materials.
Patent GB-1081744-A (GB)
Title: Improvements in or relating to the preparation of cyclic organic carboxylic acid hydrazides
Inventor: JANKOWSKI ALFONS
IPC: A01N43/52
Filed: 1965-03-10
Abstract: Cyclic carboxylic acid hydrazides are made by reacting a diazacyclopropane of the formula <FORM:1081744/C2/1> wherein R1 and R2 represent a C1- 6 alkyl group or a phenyl group at 30-200 DEG  C. with an aqueous solution of a saturated or unsaturated aliphatic 1,2-dicarboxylic acid or a mono- or poly-nuclear aromatic di- or poly-basic carboxylic acid having at least 2 ortho carboxylic groups and/or the anhydride of any such acid. The diazacyclopropane can be used in solution in a ketone, as obtained in a method of making the diazacyclopropane; on treatment with the aqueous solution of the diacid a salt of the diazacyclopropane is formed which can be extracted and heated to form the hydrazide. In example 5, the diazacyclopropane is extracted from a ketone solution by passing the solution over a weakly acidic ion-exchange resin and the ion-exchange resin then treated with an aqueous diacid solution to form the salt with the retained diazacyclopropane.  Examples relate to the cyclic acid hydrazides of maleic, phtalic and pyromellitic acids.
Patent GB-312343-A (GB)
Title: Improvements in synthetic resinous materials and processes for hardening and moldingthem
IPC: C08L61/24
Filed: 1929-04-03
Abstract: 312,343. Toledo Scale Manufacturing Co., (Assignees of Howald, A. M.). May 26, 1928, [Convention date]. Moulding synthetic resins.-A fusible alkaline condensation product of urea, thiourea, guanidine, &c. and an aldehyde is mixed with a substance capable of rendering the mass neutral or acid on heating and the mass is moulded under pressure and heat to obtain an insoluble, infusible article. In an example, urea and formaldehyde are mixed with ammonia, and a small quantity of soda or lime, and boiled to a syrup. A small amount of #-brom hydrocinnamic acid, or isodibrom-succinic anhydride is added, and the mass is dried at low temperature, powdered and hot moulded. Other acidifying substances specified are dry mildly acid salts. Organic bases may be employed as the alkaline agent and a substance added which on heating will form a neutral or acid body. The mass may be mixed with fillers, phenol aldehydes &c. The Specification as open to inspection under Sect. 91 (3) (a) mentions also the use of ammonium nitrate or chloride which is inactive when dry and cold. This subject-matter does not appear in the Specification as accepted.
Patent GB-1464378-A (GB)
Title: Control systems fuel systems for internal combustion engines
IPC: F02D41/38
Filed: 1973-03-02
Abstract: 1464378 Automatic control of fuel supply to I C engines C A V Ltd 12 Feb 1974 [2 March 1973] 10342/73 Heading G3N A fuel control system for an engine includes an idle governor which acts to increase the fuel supply for speeds below a predetermined speed by modifying the output of a demand transducer. The engine control system is similar to that described in Specification 1416862 with the idle governor circuitry connected between the speed signal and the operator controlled demand transducer. In the arrangement shown the accelerator pedal 35 causes the coupling of transformer 33 to vary and thus provides a signal at transistor 38 such that the current flowing through resistor 30 increases with increasing demand. Transistors 39, 45 conduct to provide a voltage at the input to control amplifier 9 which has a reduced slope at low demands and a constant value after a certain pedal position is reached, Fig. 4 (not shown). The idle governor stage consists of transistors 54, 57 which are connected to the speed transducer 17 so that below a predetermined speed transistor 54 conducts to increase the current flow through resistor 30 thus simulating an increased demand which exists until the speed rises to a point when transistor 54 stops conducting.
Patent GB-1119714-A (GB)
Title: Improvements in or relating to rotary sliding vane pumps or motors
IPC: F02B53/00
Filed: 1966-03-09
Abstract: 1,119,714. Rotary pumps and motors. H. TEVES, E. A. TEVES and M. TAUSEND [trading as ALFRED TEVES MASCHINEN und ARMATURENFABRIK K. G.]. March 9, 1966 [Aug. 3, 1965], No. 10356/66. Heading F1F. A rotary sliding vane pump or motor comprising a rotor 1, Fig. 1, having radially slidable vanes 3 co-operable with a non-circular cam-plate 2 to form variable volume working chambers 5, includes separately operated control piston 7 located between the inner radial ends of the vanes and the rotor whose area on the faces adjacent the rotor are greater than 50% of the area of the vane ends. In Fig. 2, a high pressure port 21 communicates through ports 24, 23, 22 respectively with the working chamber 5, chambers 6 with the inner ends of the vanes 3 and the outer faces of the pistons 7 and chambers 8 with the inner faces of the pistons. Similarly a low pressure port 25 communicates through ports 26, Fig. 1, a port (not shown) and ports 27 with the chambers 5, 6, 8. Chambers 6 also communicate with low pressure port 25 through a non-return valve 30 and chambers 8 with high pressure port 21 through a non-return valve 32. Ports 24 and associate ports 23, 22 are arranged alternatively around the casing with respect to ports 26 and associated ports. As a vane 3 passes high pressure ports 24, both sides of the vane in the working chamber 5 and the chambers 6 and 8 are subjected to high pressure so that the vane is urged outwardly solely by springs 9 beneath the control pistons. Similarly as a vane 3 passes low pressure ports 26, both sides of the vane in the working chamber 5, and the chambers 6 and 8 are subjected to low pressure again resulting in the vane again being urged outwardly by solely the springs 9. In a transitional stage where one side of a vane 3 is subjected to high pressure and its other side to low pressure, the chambers 6, 8 are open, through the valves 30, 32, with low and high pressure respectively so that again the vane is urged outwardly solely by the springs. Preferably, the area of the pistons subjected to pressure in the chambers 8 are 55% to 56% of the area of the vane ends to permit a surplus of 5 to 6% of operational area to assist the springs 9. Several constructions of control piston are described and illustrated. Thus in all positions of the vanes the outward pressure is not unduly high resulting in a reduction in friction and the film of lubricant between the vane and cam-plate remaining intact. The vane ends may be chamfered to reduce surface contact between the vanes and cam-plate.
Patent GB-1079376-A (GB)
Title: Manufacture of polyesters
Inventor: JEURISSEN LAMBERT GASTON
IPC: C08G63/85
Filed: 1965-03-11
Abstract: In the manufacture of highly polymeric polyesters by polycondensing a glycol ester of an aromatic dicarboxylic acid, there is used as a polycondensation catalyst an organotitanium compound of formula TiRn where R is an aliphatic, aromatic or cycloaliphatic hydrocarbon radical and n is 2, 3 or 4. Preferred catalysts are cyclopentadienyl titanium compounds (titanocenes), polyalkyl titaniums and polyaryl titaniums.  If the initial glycol ester is made by an ester-interchange reaction, the organo-titanium compounds may also be used as catalysts for this reaction.  Specified polyesters are those of terephthalic or pyridinedicarboxylic acids and ethylene glycol or cyclohexanedimethanols. Examples describe the manufacture of polyethylene terephthalate by reacting dimethyl terephthalate, ethylene glycol and possibly, zinc di(monomethyl terephthalate).
Patent GB-164573-A (GB)
Title: Container for cigarettes and the like
IPC: A24F15/18
Filed: 1920-04-14
Abstract: 164,573. Troisi, F., and Raucci, A. April 14, 1920. Ash-trays.-A container for cigarettes &c. has a lid 4 with a compartment 11 in which slides a drawer 13 serving as an ash-tray. Matches and a match-striking surface are also provided on the lid. In a modified form the lid has a subsidiary hinged lid in it covering an ash compartment depending from the under side, a non-combustible tray being if necessary used as a liner.
Patent GB-1240974-A (GB)
Title: Device for attaching an interlining to a garment
IPC: D06F71/06
Filed: 1970-03-04
Abstract: 1,240,974. Garment lining device. DHJ INDUSTRIES Inc. 4 March, 1970 [6 March, 1969], No. 10452/70. Heading B5N. [Also in Division A3] A device for attaching a thermoadhesive interlining to a garment includes a chamber 2<SP>11</SP> formed by lower and upper members 1, 2, the junction between which is sealed by a gasket 2<SP>1</SP> received in a seat in the lower member, a support 3 in the chamber to support the garment and interlining over orifices in the support, an aspirator 4 to suck the garment and interlining toward the support, and infra-red heating elements 6 to weld them together, the support having the contours of the desired garment. Provision may be made to introduce compressed air into the chamber to co-operate with the suction effect. The upper member 2 is supported by a bar with two arms 7, 7<SP>1</SP> and is attached to another arm 7<SP>11</SP> pivoted at point 8. The arms 7, 7<SP>1</SP> are hinged together at point 9 and fixed at their other ends to a point 10 and to upper member 2 respectively. Thus the raising and lowering of the upper member 2 is controlled by axial displacement of rod 12 pivoted at point 9 and driven by pneumatic cylinder 13.
Patent GB-780165-A (GB)
Title: Improvements in or relating to sheet metal working machines
IPC: B30B1/40
Filed: 1954-04-09
Abstract: 780,165. Angular bending. NEWSOME, J. July 7, 1955 [April 9, 1954], No. 10491/54. Class 83 (4). A sheet-metal working machine having a movable member 2 adapted to press against one side of the metal plate being operated on has such member operated by movement of a wedgeshaped member 6 transversely of the machine, the wedge-shaped member being mounted between the movable member 2 and a fixed member 7 provided on the machine, one of the tapering edges of the wedge-shaped member 6 and a correspondingly shaped surface on the fixed member 7, or on the movable member 2, forming a straight track between them within which are disposed a plurality of balls or rolls 17 or 8 which permit the transverse movement of the wedge-shaped member. The movable member or die 2 co-operates with a fixed die 1 and is guided in its vertical movement by rollers 10 in a housing 11 on the end of the die 2 running on a slideway 4. The wedge member 6 which co-operates with tapered surfaces on both the die 2 and fixed member 7 is moved by a piston 12 in an hydraulic cylinder 13.
Patent GB-454932-A (GB)
Title: Improved speed-limiting apparatus for motor vehicles
IPC: G01P1/10
Filed: 1935-04-06
Abstract: 454,932. Speed governors. BROWN, N. R., 36, Lygon Road, Edinburgh. April 6, 1935, No. 10701. [Class 57] A centrifugal governor 17 is driven at a speed proportional to the road speed of a motor vehicle through gearing connected by a flexible shaft to a pinion gear in the speedometer drive. The disc 19 connected to the governor sleeve, is positioned between two discs 20 on a rod 13 formed with a rack 12 gearing with a pinion 11 on the spindle of a valve 5 mounted in a short length of pipe 6 adapted to be bolted between the carburetter and the engine manifold. The valve 5 may be held open by a connection between the dashboard and the lever 29. The speed at which the governor operates is varied by adjusting the sleeve 32.
Patent GB-1191966-A (GB)
Title: Improvements in or relating to Austenitic Alloy Steels
Inventor: TETLEY FREDERICK WILLIAM
IPC: C22C38/38
Filed: 1968-03-06
Abstract: 1,191,966. Austenitic steels. SWIFT LEVICK & SONS Ltd. April 24, 1969 [March 6, 1968], No. 10764/68. Heading C7A. An austenitic alloy steel consists, in weight per cent, of:- cent, of:- Cr 20À5 - 21À5 Mn 8À5 - 10 Ni 0 - 0À5 Nb 0À6 - 0À9 C 0À48 - 0À6 N 0À4 - 0À52 Si 0À1 - 0À5 Fe and impurities - balance. Exhaust valves for I. C. engines may be made from the alloy by rolling to bar, solution treating as by heating at 1200‹ C. for ¢ hour and quenching in oil, water or air, and then forging to valve form. Reference is also made to precipitation hardening by heating at 675‹ C. for 6 hours and then air cooling.
Patent GB-134486-A (GB)
Title: Improvements in and relating to Baby-carriages or Perambulators.
Inventor: WILLIS GEORGE
IPC: B62B9/22
Filed: 1919-04-30
Abstract: 134,486. Willis, G. April 30, 1919. Perambulators are adapted to be converted into rocking cots or cradles by the removal of the wheels and the attachment of rockers to the axles. For this purpose, the axles e have sockets f into which stub axles d, on which the wheels c are mounted, can be fitted and secured by set-screws g engaging recesses d<1>. The rockers h are ground at i to engage the axles e, to which they are secured by hooks j and screwed studs j<1>. The axles e are mounted on the springs b as usual.
Patent GB-657309-A (GB)
Title: Improvements in or relating to means for regulating the fuel supply for internal-combustion engines
IPC: F02D9/00
Filed: 1948-04-19
Abstract: 657,309. Regulating. ATELIERS DE CONSTRUCTION LAVALETTE. April 19, 1948, No. 10775. Convention date, April 18, 1947. [Classes 7(v) and 7(vi)] [Also in Group XXIX] The delivery of fuel to a supercharged engine is controlled in accordance with altitude and the temperature and pressure of the admission air, and means are provided to control the richness of the mixture and correct the fuel flow for variations in the volumetric efficiency of the engine. The capsules 25, 23 subject respectively to intake manifold pressure and atmospheric pressure (or exhaust back-pressure) act through a lever 20 and rod 58 to rotate - a lever 62 which actuates a fuel injection pump control rod 31 directly or through a servomotor 51, and a thermometric bulb 59 in the air intake pipe acts through a capsule 71, lever 2 and rod 64 to move a slide block 60 in a slot in the lever 62 to increase the fuel supply as the temperature decreases. The mixture richness is controlled by a cam 7 which rotates a lever 3, pivoted at 4, to vary the position of the pivot 1 of the lever 2. The cam 7 is shaped to correct for varying volumetric efficiency and rotatable through an arm 11 by a rod 18 connected to the throttle valve operating mechanism to vary the richness in accordance with throttle valve opening, independent control of the richness being effected by operation of a rod 15 which rotates an eccentric pivot 9 of the cam 7. The pivot 65 of the lever 62 is also adjusted by the rod 18 which rotates a second cam 10 acting upon a lever 66. The servomotor 51 comprises a valve 56 actuated by the lever 62 and sliding in a bore in a follow-up piston 54, actuated by fluid pressure entering at 52, which piston is connected through a one-way connection 29 to the pump control rod 31. The fuel supply may be cut off by moving a rod 32 to contact the casing 29 and force it to the left against a spring 47. A drum 34 meshing with a rack 33 on the part 29 is normally freely rotatable on the spindle 40 of a lever 39. If the automatic regulating mechanism fails, rotation of the lever 39 causes a cam 43 to move a valve 46 to connect the space 49 to exhaust to allow free movement of the piston 54, and also moves a spring catch 41 to engage a hole 36 to lock the drum 34 to the spindle 40 for manual control of the pump control rod 31, the spring catch 41 being disengaged from the drum 34 by a plate 37 during normal control. Several modifications of the arrangement of the capsules 23, 25 are described, including one in which the two capsules are replaced by a differential capsule.
Patent GB-695561-A (GB)
Title: Improvements in and relating to decolourisation or bleaching of ester waxes
Inventor: BAUM ERNEST ARMAND
IPC: C11B11/00
Filed: 1950-05-02
Abstract: Ester waxes are decolorized by emulsifying the wax, agitating the emulsion in the presence of a chlorinated bleaching agent, and progressively adding hydrochloric acid to liberate the chlorine from the bleaching agent.  Waxes specified comprise carnauba, candelilla and sisal wax.  Any of the common emulsifying agents may be used, such as soaps.  The wax may be partly emulsified before the bleaching agent is added, the emulsification being completed by the addition of emulsifying agent with the bleaching agent.  Some emulsifying agent is formed by the action of the bleaching agent on saponifiable free acids or fractions in the wax itself.  The wax may be brought to the form of a paste with a solvent before the emulsification, the solvent serving for its extraction being used.  Most of the solvent is preferably removed from the paste before it is emulsified.  The chlorinated bleaching agents specified comprise sodium hypochlorite and chloride of lime.  The bleaching agent may be formed within the emulsion by the action of chlorine on a dilute alkaline lye previously added to the wax for its emulsification.  The additions of the chlorinated bleaching agent and the hydrochloric acid may be effected in a number of stages.  As the chlorine is liberated it exerts a bleaching action on the wax and at the same time the emulsion breaks down leaving the decolorized wax in an acid aqueous liquor from which it is removed before being washed, dried and moulded.  The liberated chlorine may be recovered as sodium hypochlorite by reaction with caustic soda.  The temperature of the emulsion is preferably raised after the emulsification at least to the melting point of the wax.
Patent GB-944083-A (GB)
Title: Improvements in and relating to the depilation of animal skins
IPC: C14B1/02
Filed: 1962-03-21
Abstract: <PICT:0944083/C3/1> A depilating machine has two rollers 1 and 11 with beaters 4 and 5 and driven by motor 29, a work-table 30 and a scalding tank 31. The beaters attached by projections 34 and bolts 32 and 33 are of a flexible polyamide-based material with scrapers 8 on the upper side.  A number of other beaters are described in relation to Figs. 2-6 (not shown).
Patent GB-690598-A (GB)
Title: Pyrotechnic device for scaring birds
IPC: A01M29/20
Filed: 1951-05-09
Abstract: 690,598. Pyrotechnic devices. KYNASTON, A. May 30, 1951 [May 9, 1951], No. 10884/51. Class 9(ii) A pyrotechnic device for scaring birds and like purposes comprises a rotatably mounted wheel A provided with recesses containing detonating charges successively initiated as associated fuzes K are brought into the neighbourhood of a flame by the rotation of the wheel. The wheel A is rotatably mounted on a threaded bolt M supported by a framework L and is surrounded by a cylindrical casing P from which extends a baffle flange C protecting a lamp within the casing. Attached to the wheel A is a pulley wheel H over which passes a cord D having a weight E at one end and at the, other end a float N within a water tank G. By regulating the flow of water from the tank the rate of descent of the float and hence of rotation of the wheel A is controlled. Thus the fuzes K are brought into the neighbourhood of the lamp at predetermined intervals. A door Q gives access to an inspection opening R through which the lamp may be removed.
Patent GB-568550-A (GB)
Title: Improvements in or relating to electric lifts
IPC: E05B65/00
Filed: 1943-07-06
Abstract: 568,550. Lift gates. FOTHERGILL, J. R. July 6, 1943, No. 10981. [Class 78 (iii)] Means for holding open a lift gate G against the self-closing action of a weight W &c. comprise a rotatable shaft R having serrations R<x> along one edge with which engages a pawl P mounted on the gate. The pawl P can be raised manually when desired by a handle H and link connection L. The rotation of the shaft R is effected by solenoids A and B, one of which is energized when the landing gate is closed and turns the shaft R out of engagement with the pawl P, and the other energized to return the shaft when the starting button is pressed. A time delay switch may be provided to prevent the car gate from closing before a predetermined period of time. If the lift is stopped between floors, the car gate holding device does not operate and the gate always closes.
Patent GB-440467-A (GB)
Title: Improvements in and relating to apparatus for tempering glass
IPC: C03B27/052
Filed: 1935-04-09
Abstract: 440,467. Tempering glass. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE, Boussois-sur-Sambre, France. April 9, 1935, No. 11033. Convention date, April 9, 1934. [Class 56] A device for cooling a glass plate or sheet during the process of tempering comprises agitating-devices rotated rapidly in free air close to the surface of the glass. The device comprises two discs 2 arranged parallel with one another and rotated in the same or in opposite directions. Each disc is provided on its inner surface with radial blades 3, and apertures 4 are formed between the blades to facilitate circulation of the air. The glass sheet 1 is supported by tongs from an overhead track 17, and after being heated in a suitable furnace is run into position between the discs, as shown in Fig. 3. The rotation of the discs agitates the air close to the surfaces of the glass, and cooling is effected without subjecting the glass to any appreciable pressure by the air. In modified constructions, the blades 3 are arranged in various positions on the discs 3, or each disc may be replaced by one or more fans of the propeller type.