baber/WOPTO huggingface dataset:
Patent GB-771117-A (GB)
Title: Tricyclodecane triols and a process for their production
Filed: 1953-12-03
Abstract: The invention comprises tricyclodecane triols i.e tricyclodecane - (5,2,1,02,6) - triol - (3,4,8 or 9) which are prepared by reacting tricyclo(5,2,1,02,6) - decene - (3) - ol - (8) or - ol - (9) respectively with hydrogen peroxide in the presence of formic acid. The reaction proceeds by the addition of two hydroxyl groups across the double bond, as follows :- <FORM:0771117/IV(b)/1> A catalyst such as selenium dioxide, osmium tetroxide, tungsten oxide, molybdenum oxide or vanadium oxide may be used.  In an example a mixture of tricyclo-(5,2,1,02,6)-decene-(3)-(8 and 9) was added with vigorous stirring to a mixture of hydrogen peroxide and formic acid, reacted at 45 DEG  C., allowed to cool, hydrogen peroxide and formic acid removed by distillation, the partially esterified residue saponified with aqueous sodium hydroxide and the mixture of triols extracted with ethyl acetate. Specification 634,118 is referred to.
Patent GB-642771-A (GB)
Title: Improvements relating to the manipulation of traffic control and other signs
IPC: G08G1/09
Filed: 1947-12-22
Abstract: 642,771. Indicators for variable information. MARSDEN, G. H., and THACKRAY, G. S. Dec. 22, 1947, No. 33752. [Class 118 (i)] An indicator comprises a fixed plate 18 to which one or more movable plates 19 are pivoted by means of vertically - arranged dualpivot or nut-cracker hinges 20 on a support means 1 so that predetermined characters displayed at the front and rear of the sign can be changed to other predetermined characters by swing- ing a movable plate 19 through 360 degrees. In the two-plate sign shown a pivoted catch on the fixed plate 18 engages a pin on the movable plate 19 to hold it in one position or the other. The post 1 also carries below the plates 18, 19 a pair of hinged sign plates 11, 12. The plate 12 is fixed to two straps 13 which encircle the post 1 and in the lower position the plate 11 rests against a strap 14. The plate 11 is held in one position or the other by hook - and - eye fasteners. The post 1 is slidably mounted in a sleeve 4 which is sunk into the ground, pins on the post engaging grooves 5 on the side of the sleeve. A plate 7 is mounted at the upper end of the sleeve and has two sockets arranged at right angles to the grooves in the sleeve so that if the post is raised and rotated through a right angle the pins on the post engage the sockets and hold the post in the raised position; this is its normal position, the post being lowered to change the signs. Hinged plates 10 cover the plate 7. Instead of the signs having two plates a plurality of plates may be used.
Patent GB-211621-A (GB)
Title: Improvements in and relating to bedsteads
IPC: A47B23/02
Filed: 1922-12-11
Abstract: 211,621. Mallett, W. C. Dec. 11, 1922. Invalids', bed, &c. tables; folding and collapsable tables.-The head or foot of a bedstead is fitted with a hinged panel A, which can be used as a writing desk, table or shelf. The panel is supported in its open position by hinged struts R, S.
Patent GB-1460985-A (GB)
Title: Fodder trough arrangement
IPC: A01K5/02
Filed: 1974-07-31
Abstract: 1460985 Animal fodder installation SCHMEING Gebr 31 July 1974 [9 Aug 1973 12 June 1974] 33829/74 Heading AIM A set of component parts for assembling a fodder trough installation comprises at least one trough, fodder distribution ducts 5, which lie in a vertical plane, animal pen dividing wass 6, 7 sandwiching these ducts and retain ing clips 8 which fit over the trough to divide it into feeding places 9 and to support the walls. Additionally, a wedge-shaped hopper 3 made in two vertically offset shells 12, 13 forming an aperture 16 closable by a slide 17, may lead via a distribution manifold 4 to charge the distribution ducts 5. A water conduit 10, provided with nipples 11, may be fitted above the trough.
Patent GB-859592-A (GB)
Title: Improvements in transistor inverter circuits
IPC: H03K19/082
Filed: 1957-10-30
Abstract: 859,592. Transistor pulse amplifying circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 30, 1957 [Oct. 30, 1956], No. 33926/57. Class 40(6). In a two stage amplifier, the junction transistors 2, 17 feed a common load 26 with coupling between the emitter of transistor 2 and the base of transistor 17 and a feedback connection including impedance 15 and transistor 2 between the collector and base of transistor 17. In the absence of an input transistor 2 conducts to bias the base of transistor 17 sufficiently positive with respect to its emitter that the transistor is cut off at the collector, the collector potential rising until caught by diode 24 conducting. A negativegoing pulse applied to the input 8 causes the base and hence the emitter potential of transistor 2 to fall so that the base of transistor 17 is also carried negative and that transistor conducts. The increased current flow through load 26 generates a positive-going output pulse which is also effective over resistor 15 to raise the collector potential of transistor 2 thereby limiting the effective collector-emitter potential. When transistor 2 saturates, transistor 17 is kept out of saturation by the potential drop across resistor 15 and transistor 2. A diode 29 may be connected between emitter and base to prevent the base from being driven positive during the absence of an input, thus tending to decrease the "turn-on" time. Transistor 2 may be biased off in the nosignal condition. U.S.A. Specifications 2,888,578 and 2,891,172 are referred to.
Patent GB-1247836-A (GB)
Title: Improvements in or relating to paint application apparatus
Inventor: SASSI PIETRO
IPC: A43D95/26
Filed: 1970-07-14
Abstract: 1,247,836. Coating apparatus. P. SASSI, M. CORSI, and A. CALDERAI. 14 July, 1970 [19 July, 1969], No. 34015/70. Heading B2L. Apparatus for coating the edges of shoe soles comprises a suction support 47 and an oscillatable arm 73, 75 mounted on a pivot 71 movable along a guide 63, a driven crank 59 for moving the pivot relative to the article support at a frequency greater than the frequency of rotation of the article support and in synchronism therewith, a roller 135 on the oscillatable arm and a piston and cylinder arrangement 150-155 to bias the roller against the shoe sole by which it is driven. A paint trough 13 is detachably mounted on the arm extension 75 and is supplied with paint from a container 7 by a pump 15. A pneumatic unit 5 provides suction on the article support 47 and evacuates the chamber 156A of cylinder 153 to move the oscillatable arm 73. The weight of the arm 73 is normally balanced by counterweights 149 and springs 161 move the arm to its lower position. When the chamber 156A is evacuated chains 145 raise the arm 73 until roller 135 contacts the periphery of the shoe sole. The roller 135 is mounted to pivot about a cross beam 97 and a shaft 177 (Fig. 7) and is upwardly biassed by a spring 103. Rotation about shaft 117 allows the roller to tilt and so conform to changes in angle on the edge of the sole.
Patent GB-1058583-A (GB)
Title: Radiation thickness gauge
IPC: G01N23/16
Filed: 1963-08-28
Abstract: 1,058,583. Radiation thickness gauge; current measurement. ARMCO STEEL CORPORATION. Aug. 28, 1963 [Sept. 13, 1962], No. 34041/63. Headings G1A and G1U. A thickness gauge comprises a radiation source and a radiation detector, between which a test object passes, the detector output current being a measure of the object thickness, the output current and a constant reference current of the same order of magnitude being separately amplified, the amplifier outputs being fed in opposition into a third amplifier the output of which is fed to an indicator of object thickness. The apparatus may use an X-ray tube and a detector including a photo-multiplier the output of which, in the form shown, is fed to the input winding 13 of a magnetic amplifier 10. The input winding 18 of another amplifier 12 is fed from a constant voltage source 17. The outputs of these amplifiers are connected, in opposition, through current-limiting resistances 19, 20 to the input winding 21 of the amplifier 11 the output winding 22 of which is connected to a meter 23 which indicates deviations from standard thickness. The winding 22 is also connected to the stabilizing windings 29, 31 of the amplifiers 10, 12. In the system shown the photo-multiplier output is also fed to another magnetic amplifier system the output of which actuates a relay to control the operation of a lead shutter to cut off the X-ray beam when the detector system would otherwise be subjected to intense radiation because of the absence of any object between the tube and detector.
Patent GB-1456525-A (GB)
Title: Process for the manufacture of alkanolamine derivatives
IPC: C07C235/36
Filed: 1973-07-18
Abstract: 1456525 Alkanolamines IMPERIAL CHEMICAL INDUSTRIES Ltd 20 June 1974 [18 July 1973] 34165/73 Heading C2C Compounds of the general formula (R<SP>1</SP> = alkyl radical of up to six carbon atoms; R<SP>2</SP> = H or alkyl, alkenyl, cycloalkyl, hydroxyalkyl or alkoxyalkyl radical each of up to six carbon atoms; R<SP>3</SP> = H halogen or alkyl, alkenyl, alkoxy or alkenyloxy radical each of up to six carbon atoms; A = alkylene radical of up to six carbon atoms; X = O or direct link) and their salts are prepared by reacting a compound of the formula (R<SP>4,5</SP> = H or protecting group; Z# =anion) followed by removal of any protecting group(s) present and, optionally, salt formation. The products are #-adrenergic blocking agents.
Patent GB-190363-A (GB)
Title: Improvements in and relating to horse shoes
IPC: A01L7/02
Filed: 1921-12-20
Abstract: 190,363. Spencer, E. R. Dec. 20, 1921. Renewable treads. - The under surface of a horseshoe made from a bar of anglesection is fitted with a rubber pad cr wearing surface which leaves the metal toe-piece uncovered and is made with a bar X across the heels. Additional metal A<2> may be welded to the toe-piece. The rubber pad is secured by rivets and, if desired, also by an adhesive. The pad may be made in sections.
Patent GB-486895-A (GB)
Title: Improvements in or relating to air defence aprons
IPC: F41H11/04
Filed: 1936-12-12
Abstract: 486,895. Aerial warfare. GORST, P. E., and CLAPHAM, G. Dec. 12, 1936, Nos. 34183/36 and 9711 /37. [Class 9 (ii)] A parachute unit for use as a single unit or in aerial aprons or curtains comprises a parachute, a substantial length of wire attached thereto, a bomb secured to one end of the wire and a counterweight or air brake, other than the parachute, secured to the other end of the wire, the counterweight or air brake being capable of and the main agent for drawing the bomb into contact with a moving object when the latter, in fouling the wire, tends to move the parachute through the air at a speed in excess of that at which the parachute would remain open and effective for applying a substantial drag on the unit. The air brake or counter-weight is defined as a retarder body shaped so that, when the parachute collapses, the resistance of the retarder body to movement through the air is such that the force exerted by it along the wire exceeds the opposing force exerted by the bomb along the wire, whereby the bomb is drawn into contact with the aircraft. As shown in Fig. 1, the parachute 10 is connected to a cable 12 having an air brake or counter-weight in the form of a disc 16 at its upper end and a small percussion or timeoperated bomb 13 at its lower end. In the modification shown in Fig. 4, the positions of the bomb and counter-weight are reversed and the bomb is preferably connected to the parachute by a weak link, e.g. of textile material, the rupture of which withdraws the pin 13a from the bomb so as to arm the latter. The parachute unit may be dropped from aircraft or fired in a projectile from the ground. Various arrangements for forming a slowly descending apron or curtain of such units are described, the units being either spaced apart along a line or along the sides of a geometrical figure. In the latter case, the successive projection of the units is preferably arranged so that the sides of the figure progressively approach one another to restrict the area enclosed thereby.
Patent GB-304303-A (GB)
Title: Improvements in or relating to the manufacture of superheater tubes, steam boiler and stay tubes and other steam boiler components
IPC: C21D8/10
Filed: 1928-11-21
Abstract: 304,303. Schiffler, H. J. Jan. 19, 1928, [Convention date]. Metal tubes.-Superheater, steam boiler, and stay tubes are manufactured from a soft steel which is resistant to scaling up to 800‹ C. and contains 2.7-4 per cent of aluminium, with or without the addition of one or more other metals such as manganese, chromium, tungsten, molybdenum, titanium and vanadium, and is subjected to punching and rolling processes. The steels may be annealed at 750-950‹ C. and quenched, with or without subsequent reheating to 500-750‹ C.
Patent GB-354651-A (GB)
IPC: A45D8/28
Filed: 1930-11-13
Abstract: 354,651. Hair slides. KLEINMANN, E. and MENDEL, A., (trading as KLEINMANN, GEB.), 21, Wilhelmstrasse, Lichtenberg, Berlin. Nov. 13, 1930, No. 34244. Convention date, Sept. 22. [Class 131.] A hair-slide of the kind comprising two limbs 1, 2 between which the hair is gripped, is provided with two series of teeth, one series being provided on the limb 1, and the other series being movably mounted in the slide, means being provided for automatically moving the movable teeth upon the opening and closing of the slide so that when the slide is closed the two series of teeth co-operate to grip the hair firmly, but when the slide is open they release the hair. As shown in Fig. 1, the fixed teeth 4 project centrally from the limb 1 and the movable teeth 5 are formed on a slide 3 provided with slots 6 engaging the teeth 4. The limb 2 is provided adjacent the hinge 11 with a projection 10 adapted, when the slide is opened, to move the slide 3 and thus separate the teeth, and is formed at the other end with an opening 17, Fig. 5, which as the slide is closed engages with a cam-like hook 7 on the slide 3, thus causing the teeth 5 to approach the teeth 4. In a modification, the fixed teeth are formed on both sides of the limb 1, a spring is provided to normally position the slide 3 with its teeth in alignment with the teeth on the limb 1, and the hook 7 is replaced by a ballshaped projection. A second ball-shaped projection may be provided on the end of the slide 3 adjacent the hinged end of the slide, this projection being engaged by the end of the main opening on the limb 2 to effect some movement of the slide 3 to separate the teeth before the action of the projection 10 begins, or it may be employed instead of the projection 10, in which case the spring is omitted.
Patent GB-927967-A (GB)
Title: Linear high polymers and process for preparing them
IPC: C08F26/00
Filed: 1961-09-25
Abstract: Linear head to tail high molecular weight homopolymers of di-aryl-vinyl amines are made by polymerizing the amines in the presence of a catalyst comprising (a) a compound of the general formula MeXnRm in which Me is boron or a polyvalent metal of an ionic radius lower than 0,85 , belonging to Group II, III, IV, or V, of the Periodic Table according to Mendel<\>eeff, X is halogen, R is an alkyl, aryl, alkoxy, or acyl group or oxygen, n is an integer, m is zero or an integer and n+m equals the valency of the metal, or (b) addition complexes of compounds (a) with Lewis bases containing oxygen.  The monomer polymerized may be diphenyl-vinyl-amine, alpha- or beta-naphthylphenylvinylamine, or a dinaphthylvinylamine, a tolylphenyl- or ditolyl-vinyl amine, dimethylphenyl-phenyl vinylamine, or a bis(dimethylphenyl)vinylamine.  The catalyst may be a Friedel Crafts catalyst such as boron trifluoride diethyletherate, or ethyl aluminium dichloride, or TiCl2(OCOCH3)2.  The polymerization is preferably effected in a hydrocarbon, or ether solvent or diluent. The polymer may be purified by conventional techniques, e.g. by treatment with alcohols and acids.  The purified polymer may be separated into stereoisomers using solvent extraction techniques. The polymers may be used for the insulation of high tension cables.
Patent GB-1240927-A (GB)
Title: A marine structure for mineral exploration or production
IPC: E02B17/00
Filed: 1969-07-08
Abstract: 1,240,927. Subaqueous structures. MOBIL OIL CORP. 8 July, 1969 [15 July, 1968], No. 34291/69. Heading EIH. Erosion, or scouring, of subaqueous ground 15 bearing a structure 10 with legs 14 is minimized by depositing a mass of unconsolidated particulate insoluble material 22 upon said ground circumjacent each leg, the material having a specific gravity of at least four. Deposition of the material is effected by pumps 21 through conduits 17 and annular manifolds 18 containing downwardly facing orifices (19), Fig. 2 (not shown). Alternatively, each of the legs is hollow and houses a conduit 17b for the material 22, the lower end of the conduit terminating adjacent openings in the leg between packing means 24, 25. The material may be barite, iron oxide, lead shot or celestine.
Patent GB-174509-A (GB)
Title: Improvements in and relating to gramophone needles and in the manufacture thereof
IPC: B21G1/00
Filed: 1920-12-04
Abstract: 174,509. Morrall, Ltd., A., and Hodges, A. E. Dec. 4, 1920. Needles.-Gramophone needles having flattened spear points are forged and cut off in one operation. Convenient lengths of wire for handling are just pointed at both ends and are then fed into recesses d in dies a and b, Fig. 2, the distance of insertion being limited by gauge fingers which grip the wires and engage the cut-away faces f. The wires are severed by cutting edges c, and the pointed ends are flattened between plain or shaped faces e. The recesses may emboss a mark on the needles during the forging operation. After cutting a needle from each end, the rims are re-pointed preparatory to further treatment. In a modification the recesses d are replaced by a gap in the die faces.
Patent GB-430014-A (GB)
Title: Improvements in and relating to electric remote control systems
IPC: G05D3/14
Filed: 1933-12-06
Abstract: 430,014. Distant-control systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Edwards, M. A. ; 478, Cedar Street, Schenectady, New York, U.S.A.) Dec. 6, 1933, No. 34331. Convention date, Dec. 10, 1932. [Class 40 (i)] In a follow-up system for driving an object, e.g. a gun, into positional agreement with a control member, e.g. a telescope, in which electric valve apparatus controls the supply of current to the driving motor and in which fine and coarse controlling means are employed, the driving motor is controlled by the fine and coarse means according to the extent of disagreement between the controlling and controlled devices. In the arrangement shown, the telescope controls fine and coarse transmitters 28, 36 which are connected to corresponding receivers 30, 37.. The transmitters and receivers are of the resultant field type, the stator of the receiver 37 and the rotor of 36 being geared to the gun 10. The output of the rotor of the receiver 30 is applied to a transformer 24 which effects the biassing of the valve equipment 15, 16. The valves, which may be of the discharge or thermionic type, are supplied through a transformer 18 and normally biassed by a transformer 23. The output of the valves is applied to the driving motor 12 through leads 17. The rotor of the coarse receiver controls a cam 42 which operates a switch 43 controlling relays 47, 48 adapted to disconnect the transformer 24 from the " fine " receiver 30 and connect it to a transformer 50 which is arranged to provide a biassing voltage sufficient to cause amplified output from the valve equipment to run the motor 12 at maximum speed. When disagreement between the telescope and the gun is within predetermined limits, the " fine " control only is effective to bring the gun into correspondence with the telescope. Within these limits the stator of the coarse receiver 37 rotates in opposition to the rotating field produced by movement of the transmitter to maintain the rotor stationary. When, however, disagreement exceeds the predetermined amount, the motor 12 is controlled solely by the coarse control equipment. In modifications, the cam 42 is dispensed with by providing additional valve equipment controlled by the coarse receiver.
Patent GB-521763-A (GB)
Title: Improvements in or relating to metal vapour converters
IPC: H01J13/48
Filed: 1938-11-25
Abstract: 521,763. Metal vapour converters. GENERAL ELECTRIC CO., Ltd., and PRINZ, D. G. Nov. 25, 1938, No. 34375. [Class 39 (i)] Ignition is effected by means of a pool 3 spatially separated from the main cathode pool. 4 to which it is electrically connected through a resistance 8, and the surface of the main pool contains particles 11 of insulating material, for example alumina. In the example described, the ignition electrode 9 to which the positive impulses are applied by a transformer 10 is connected to the ignition pool directly or through the resistance 8. To avoid time-lag of irregular duration between the formation of the ignition and the transfer of the discharge to the main cathode, the pools are preferably placed close together with an intervening thin strip 2 of insulation. In addition or alternatively, a magnetic field may be established in the discharge device to concentrate the electrons from the ignition pool towards the space between the main cathode and the anode, or an auxiliary anode may be disposed in this space and have applied to it the impulses applied to the ignition electrode. Preferably the particles 11 are connected together and may consist of glass beads strung on wires anchored to the wall of the tube, which may be of glass.
Patent GB-921481-A (GB)
Title: Improvements relating to foam-stabilising compounds
Inventor: KIMBER KENNETH GEORGE
IPC: A62D1/02
Filed: 1958-10-28
Abstract: A dilute solution of partially hydrolysed protein suitable and ready for direct conversion into foam by the addition of air contains at least 0.002% by weight dichlorometaxylenol.  The solution may be produced by incorporating the dichlorometaxylenol e.g. as the sodium salt or as a solution in a solvent miscible with the concentrated solution, in a concentrated solution of the partially hydrolysed protein and thereafter diluting the resultant mixture with water.
Patent GB-911872-A (GB)
Title: Improvements in rotary tedders or haymaking machines
IPC: A01C3/08
Filed: 1960-10-10
Abstract: 911,872. Haymaking machines. MASCHINENFABRIK FAHR A.G. Oct. 10, 1960 [Oct. 23, 1959], No. 34616/60. Class 6(3). A rotary tedder having at least two rotary raking heads 19 provided with axially-extending prongs 22 which are driven from the rear power take-off 40 of a tractor 7 is characterized in that the heads are journalled on a beam 11, transverse to the direction of travel 4, and are driven in opposite directions with their prongs interengaging. The beam 61 is connected to the tractor draw-plate 6 by pivoted draught-links 5 one of which carries an upstanding sector 16 which co-operates with a lever 15 integral with the beam to adjust the inclination of the raking heads to the ground. The heads are driven by bevelgearing 30, 31, 37 from the shaft 40 and are each supported by a ground wheel 25 on an arm 26 pivoted to a block 24 below the raking- head journal. The block carries an adjusting screw 29 for varying the working height of each raking head and also a latch 28 for holding the ground-wheel in transport position. Several tedding units may be articulated in transverse alignment by links 12, the drive being passed from unit to unit by jointed shafts.