baber/WOPTO huggingface dataset:
Patent GB-1448811-A (GB)
Title: Citraconic anhydride preparation
IPC: B01J23/847
Filed: 1975-03-27
Abstract: 1448811 Oxidation catalysts PFIZER INC 27 March 1975 [3 June 1974] 13056/75 Heading BIE [Also in Divisions Cl and C2] In Example 1, a catalyst composition containing 4.0% V 2 O 5  and 0.23% MoO 3  is made by moistening a crushed dundum carrier with an aqueous solution containing oxalic acid, ammonium metavanadate and ammonium molybdate, drying the product on a steam bath and calcining at 450-500C for 5 hours. In Example 3, a catalyst is made by fusing 30 g, V 2 O 5  with 1 g CuO, solidifying the melt and crushing. In Examples 4 and 5, catalysts, comprising respectively 97% V 2 O 5  and 3% P 2 O 5 , and 97% V 2 O 5  and 3% Cr 2 O 3 , are prepared likewise.
Patent GB-762454-A (GB)
Title: Improvements in or relating to bogie mountings for rail vehicles
Inventor: HEUMANN EBERHARD
IPC: B61F5/16
Filed: 1952-05-23
Abstract: 762,454. Rail vehicle undercarriage. KRAUSSMAFFEI AKT.-GES. May 23, 1952, No. 13130/52. Class 103(6). A bogie 2 has a pivot pin D which is connected by a lever 8 and links 7 to pivot pins F on an extension 3 of the vehicle frame 1, the lever 8 and links 7 forming a quadrilateral linkage for circular guiding of the bogie. Longitudinal forces are taken by co-operating pressure members 5 and 6. The pivot point D may be inboard of the articulation points A and may be at a position other than midway between them. The lever 8 may be extended so that the pivot D may be forward or aft of both points A, or it may comprise a leaf spring. Resilient connections for the points D and F are also described.
Patent GB-434223-A (GB)
Title: Improvements in lamp brackets for use on cycles and the like
IPC: B62J6/02
Filed: 1934-05-01
Abstract: 434,223. Cycle lamp brackets. URRY, F. J., Lucifer House, Lionel Street, Birmingham. May 1, 1934, No. 13136. [Class 75 (iii)] Two bolts 5 extend through apertures in a plate 1, secured to the frame of the cycle, and through apertures in a substantially L-shaped plate 6, adapted to receive the lamp, springs 7 being provided on the bolts for resiliently pressing the plates together. The plate 1 may comprise a ring 2, Fig. 2, adapted to fit over the fork tube 3 or a laterally bent part 9, Fig. 5, terminating in a rearwardly bent end 10 formed with a serrated collar for attachment to a lug on a fork or the wheel hub spindle. Two additional springs may be provided on the bolts above the upper plate. Each pair of coiled springs may be replaced by a bowed leaf spring having slotted or bifurcated ends engaging over the bolts. The ends of the bolts are preferably upset to prevent loss of the adjusting nuts 8.
Patent GB-131586-A (GB)
IPC: C03B7/086
Abstract: 131,586. Tucker, O. M., and Reeves, W. A. Aug. 12, 1918, [Convention date]. Delivering molten metal. -In apparatus of the kind described in Specifications 105,564 and 109,782, extruding charges from a discharge orifice 2, Fig. 2. pressure is applied to the molten metal by a plunger 6 so as to maintain the rate of extrusion and crosssection of the charge and to prevent the formation of a neck. The shears 4 &c. operate as usual.
Patent GB-887649-A (GB)
Title: Apparatus for detecting characteristic markings
IPC: B07C3/14
Filed: 1958-04-25
Abstract: 887,649. Detecting characteristic works on documents. STANDARD TELEPHONES & CABLES Ltd. April, 25, 1958 [April 26, 1957], No. 13215/58. Class 40(3). In apparatus for detecting a characteristic work, e.g. a stamp on a document, in which the document is scanned by a photo-electric device, a gate circuit provides an output signal to a control device only when there is applied to it a first signal derived directly from the output of the photosensitive device as a result of the presence of the document and a second signal derived from the first via a filter network and indicative of the characteristic mark. A strip of the document is scanned by photo-electric device B as the document is transported past the device and the photo-electric signal is amplified V and applied to two evaluating circuits. The first of these is a document detecting circuit M which produces a signal during the period the document is scanned and this signal triggers a register flip-flop circuit SP1 which supplies one input to a gate circuit T1. The second circuit comprises a low pass filter J and an amplitude filter F in which upper and lower limits are set to pass signals derived from a characteristic mark, these signals are applied to the second input to the gate T1. In addition, the output of the L.P. filter is applied to a differentiating circuit ST which produces a signal to block T1 when the rate of charge of the' photo-signal exceeds a preset positive or negative value. This circuit produces a signal during the rise and fall time of a characteristic mark or extraneous mark signal and serves in the latter case, if the signal is greater in amplitude than the upper limit of the amplitude filter, to prevent the gate producing an output signal when the extraneous signal rises and falls through the filter limits. The gate output signal is applied via a register circuit SP2, a gate T3 and a register SP3 to a control device L. Characters on the document having a similar average reflectivity to the characteristic mark but showing a greater number of brightness changes are prevented from operating the control device L by a character eliminating circuit N comprising a filter K, counter Z and register SP4 which produces an output to block gate T3 when the number of brightness changes, as counted by Z, exceeds that expected from characteristic mark. Specification 887,648 is referred to.
Patent GB-914461-A (GB)
Title: Method of purifying chromite
Inventor: KONIG WALTER
IPC: C04B35/01
Filed: 1960-04-13
Abstract: Chromite is purified by mixing it with calcium oxide, or a substance which on heating forms calcium oxide, for example fat lime, limestone or dolomite, roasting the mixture, comminuting the resultant roast, preferably to below 4 mm., and removing therefrom the particles below 0,2 mm., in which the bulk of the impurities are segregated.  If desired, these removed particles may be treated with hydrochloric acid, preferably at 60 DEG -70 DEG C., washed, and returned to the coarse particles.  The coarse particles may be similarly treated with hydrochloric acid.  The refractoriness of the chromite is increased by the above purification process.  The product may be used for the manufacture of chromite bricks, or, in admixture with magnesite, of chromite-magnesite bricks.
Patent GB-1494464-A (GB)
Title: Electrostatic precipitators and cleaning devices therefor
IPC: B03C3/76
Filed: 1976-04-01
Abstract: 1494464 Electrostatic precipitators ELEX AG 1 April 1976 [23 May 1975] 13283/76 Heading B2J  The rapping mechanism of an electrostatic precipitator comprises a rotatable shaft 1 carrying hammers 2 which is connected to a drive mechanism by a rotatably mounted intermediate insulating isolator 3 which extends through the precipitator wall 12, the isolator 3 also being heated to prevent moisture from forming thereon and being supported at its drive end by one or more rollers 10 to minimize the heat transmitted therefrom. In the arrangement shown, an end cap 7 is mounted over the isolator 3 which is engaged and supported by three rollers 10 disposed in collar plates 11 mounted by brackets 15 to the wall 12, and a chain wheel 9 is provided for driving the shaft 1 and isolator 3. A heater 4 is mounted within the cavity 17 of the isolator 3 to maintain a preselected temperature on the outer surface of the isolator.
Patent GB-679991-A (GB)
Title: Tray assembly for use in proving dough
Inventor: ALTON MICHAEL
IPC: A21B3/13
Filed: 1950-05-26
Abstract: 679,991. Bakers' trays. ARNOPLAST, Ltd. May 24, 1951 [May 26, 1950], No. 13292/50. Class 28 (i). A baker's tray for proving dough comprises a semi-rigid sheet material tray proper 1 having integral pockets 2, perforated at the bottom, and a thin pliable plastic covering 3, having sufficient slack to sag into the pockets, the margin of which is sandwiched between the margin of the trav proper and that of a semi-rigid frame 4 apertured to correspond with the pockets and extending round the outer contour of the tray proper. The semi-rigid tray and plastic covering may be clipped together. The tray 1 may be of unplasticised polyvinyl chloride, acrylic, polystyrene, polyethylene or cellulose acetate sheet or metal, e.g. aluminium sheet, and the covering 3 may be polyethylene, cellulose or rubber hydrochloride.
Patent GB-143263-A (GB)
Title: Improvements relating to electric switches
IPC: H01H81/04
Filed: 1920-05-14
Abstract: 143,263. Murray, E. T. R., and Shotter, G. F. May 14, 1919, [Convention date]. Electro-magnetic switches and interrupters.- A switch particularly adapted for use as a current limiter comprises a switch arm 1 pivoted at 2 and so balanced that normally the bridging contact 3 is maintained in engagement with the fixed contacts 5, 6 by gravity and is latched in this position, to prevent accidental movement, by a bell-crank lever 19 one arm of which engages a pin 20 on the contact arm. The main circuit passes through a wedge-shaped operating winding 7 having a fixed U-shaped yoke 8 which, when an excess current passes, attracts the pivoted armature 9 which, at the end of its movement, strikes a rod 12 and moves the latch out of the latching position and, through the intermediary of a bent spring-arm 15 carried by the pin, pushes the switch arm out of the contact position whereupon the arm swings upwards and returns in a time depending on its natural frequency of oscillation. The upwards movement of the arm removes a pin 21 carried thereby away from a spring contact 22 which closes against its co-operating contact 23 and short-circuits the operating winding. On the return of the contact arm the shortcircuit is removed and if the overload persists the arm is again moved under the action of the full impact of the armature 9. Specifications 5200/15 and 5201/15 are referred to.
Patent GB-134841-A (GB)
IPC: C03C17/06
Abstract: 134,841. K³ppers, K. Nov. 13, 1916, [Convention date]. Wire skeletons, embedding in glass; forming articles with metal skeletons.-In making re-inforced glass tubes, a tube of wire gauze or a wire helix c is slipped over a cylindrical core a, the glass tube b is slid on and the endss closed. The air is then exhausted and the tube progressively heated, for example by an electrically-heated ring d, as described in Specification 20192/13, thus causing the tube b to collapse upon and unite with the wire c. The core a is finally removed.
Patent GB-134917-A (GB)
IPC: C22C33/04
Abstract: 134,917. Marks, E. C. R., (American Manganese Steel Co.). Nov. 12, 1918. Alloys.-The utilization of manganese-steel scrap, or other form of manganese steel is effected by heating the steel uniformly throughout from a temperature below the oxidizing temperature of manganese to successively increasing temperatures, until the whole of the steel is brought to its melting-point. An electric furnace may be employed, and the temperature of the metal may be raised first to about 600 F., and then gradually to about 1200 F., when a basic slag, or fluxes which will produce a basic slag, are added, the temperature being gradually raised to 2400 F. and the steel melted. The furnace may be worked with a non-oxidizing atmosphere. Before tapping, the temperature of the molten steel may be raised for a short time substantially above 2400 F. Specification 134,918 is referred to
Patent GB-975974-A (GB)
Title: Device for filtering aeriform media
Inventor: WIGLEY ALBERT FREDERICK
IPC: B01D46/06
Filed: 1962-04-09
Abstract: 975,974. Air filters. VISCO Ltd. April 2, 1963 [April 9, 1962], No. 13578/62. Heading B1T. An air filter comprises a plurality of open mesh cells 10 mounted on and integral with a frame 14 and covered on one side by a single sheet of filter material 13 having a width equal to the length of the longitudinal axis of each cell and the open ends of each cell which is of inverted V-shape in cross-section is closed by a plate 12 secured to the frame 14. The filter material passes beneath rods 17, 19 secured to frame 14 which in turn is secured by spring clips 18 to a base frame 11.
Patent GB-354206-A (GB)
Title: Improvements in waterproof garments, hats, and the like
IPC: A41D3/04
Filed: 1930-05-03
Abstract: 354,206. Waterproof wearing-apparel. ATHERTON, D. F., 102, St. George's Square, Portsea, Portsmouth. May 3, 1930, No. 13635. [Classes 63 and 141.] Waterproof coats, aprons, hats or other wearing- apparel are constructed with a gutter or channel made of moulded indiarubber or other suitable material as shown in the. Figure, the channel terminating at one end in a suitable, discharging lip or spout. One edge of the gutter may be bifurcated at a, b for attachment to the garment or the like by stitching, cementing, or in any other manner.
Patent GB-250051-A (GB)
Title: Improvements in or relating to carbon or like transfer sheets
IPC: B41M5/10
Filed: 1925-05-25
Abstract: 250,051. White, A. E., (Standard Products Corporation). May 25, 1925. Carbon papers and like transfer sheets are made from opaque paper which is of the same colour and shade as the surface of transfer material which is applied on one side only, thereby ensuring that the appearance of the sheets shall remain substantially unaltered by wear and the consequent removal of the transfer material from the coated surface. The necessary opacity is preferably given to the paper during its manufacture by adding colour or pigment to the paper stock, consisting of rags or other material, while in the beaters or hollanders; loading or filling material such as talc, clay, or Fuller's earth may be added. A combination of a filling material with a dye may be employed, for example as obtained by precipitating barium sulphate in the presence of an aniline or other soluble dye, or a black mineral material such as pyrolusite may be employed. The transfer material which is applied to the prepared paper may consist of pigments or dyes together with a wax or mixture of waxes, such as carnauba wax montan or ceresin, with the addition of fats or oils such as petroleum or linseed oil if desired. The transfer material is applied hot, and may be polished after cooling. Instead of incorporating a pigment or colouring composition into the paper during its manufacture a dye, or a pigment such as carbon black with a small amount of basic colour such as methyl violet, may be applied to it before the application of the transfer surface.
Patent GB-310892-A (GB)
Title: An improved device for the utilisation of the sensible heat of the distillation gases from ovens for the production of gas and coke
IPC: C10K1/04
Filed: 1929-05-02
Abstract: 310,892. Naamlooze Vennootschap Silica en Ovenbouw Mij., (Assignees of Otto & Co., Ges., C.). May 2, 1928, [Convention date]. Ascension pipes.-Coke oven ascension pipes a are provided with a fireproof liner g and contain a steam generator comprising a removable pair of concentric tubes i, k. Water supplied through pipes v is preheated in a steam drum t and flows through a pipe r and collection pipe o into the various tubes i whence it enters the outer tank k and is evaporated, steam flowing through a collection pipe q and pipe s to the steam drum. The water pressure may be regulated so that evaporation occurs outside the ascension pipe. Valves n, p in the inlet and outlet pipes may be regulated automatically in accordance with the temperature in the ascension pipe. A damper e which may be treated with scavenging fluid from a container f may cut off the ascension pipe from a gas main d.
Patent GB-777247-A (GB)
Title: An improved strip material for use in packaging
IPC: B65D63/10
Filed: 1953-05-18
Abstract: 777,247. Wrappers. MOSER, G. Aug. 18, 1954 [May 18, 1953],No. 13806/53. Class 94(1). [Also in Groups VIII and XXV] A web, tape or sheet of pliable material, has its opposite marginal portions folded inwardly and secured in place by previously applied adhesive, both inturned portions terminating short of the other line of fold and serving to overlap and position a longitudinally disposed and relatively stiff reinforcing thread adapted to take a permanent set when distorted. In one web construction, Fig. 2, a wire 12 is incorporated under each folded marginal portion. In a further web construction, Fig. 3, the folded marginal portions each overlie opposite parts of a single reinforcing thread 15 of zig-zag form. The web, tape or sheet 10 may be of paper or transparent plastic having a surface layer 11 which may consist of lacquer, fabric or silk fibres. The webs or tapes are intended for use instead of string in securing parcels, the ends being simply twisted together instead of being tied. The sheets should be of such size that the marginal edges overlap when wrapped around the goods, the ends of the resultant tube that initially project beyond such goods being twisted up to produce a fully-sealed package.
Patent GB-1354378-A (GB)
Title: Valve
IPC: F16K31/11
Filed: 1971-05-07
Abstract: 1354378 Valves ORSZAGOS KOOLAJ ES GAZIPARI TROSZT GAZTECHNIKAI KUTATO ES VIZSGALO ALLOMAS 7 May 1971 [7 May 1970] 13816/71 Heading F2V In a valve adapted to be opened manually and closed automatically upon interruption of an electric current, when stem 7 is manually depressed against spring 11 into contact with stem 6, energization of coil 5 provides sufficient magnetic attraction between the two stems to cause stem 6 to follow stem 7 when the latter is returned by the spring, thereby unseating selfaligning closure member 2. De-energization of the coil allows the stem 6 to drop and reseat the closure member. Energization of the coil with stem 7 raised is unable to cause unseating of the closure member.
Patent GB-736910-A (GB)
Title: Improvements in footwear having detachable uppers
IPC: A43B3/24
Filed: 1953-05-18
Abstract: 736,910. Boots &c. WERTHY'S ENTERPRISES (PTY.), Ltd. May 18, 1953 [June 5, 1952], No. 13843/53. Class 17 (2). A shoe has a heel and sole unit 2 and a pair of detachable upper portions, comprising a front part 3 substantially covering the instep of the foot 1 and a heel strap 6, which are attached to buttons 4 on the heel and sole unit. Alternatively, the the attachment may be made by lacing.
Patent GB-130307-A (GB)
Title: Improvements in or relating to Hand Wheels.
Inventor: DOVER HORACE WALTER
IPC: B62D1/04
Filed: 1919-05-31
Abstract: 130,307. Dover, H. W. May 31, 1919. Addition to 109,912. Hand-wheels.-Relates to a modification of the hand-wheel claimed in the parent Specification, which is built up of two parts a, e, one or both formed of stamped or pressed sheet metal, and which are held together by a casing of celluloid, exonite, or like compound or of non-inflammable material capable of being moulded. According to the invention, the collar k of the hub m bears on the lower part e, and is secured to the wheel by rivets which pass through a distance-piece o. The parts of the spokes may be connected by rivets u passing through countersunk distancepieces v, and the lower halves of the spokes may merge from semi-elliptical section to V-section towards the nave. The lower-half of the wheel may be cast integral with the distance-pieces o, v.
Patent GB-1423395-A (GB)
Title: Metal caps for closing containers
IPC: B65D51/14
Filed: 1973-03-22
Abstract: 1423395 Caps for bottles &c. A PODESTA 22 March 1973 [23 March 1972] 13925/73 Heading B8T A metal cap for a container 3 is characterized by its cover disc 2 which is saucer-shaped, has a conical part 102 and an outturned flange 402 and effects a reversing snap action firstly when tightened down by a rolled bead 7 of an associated threaded skirt 1 and secondly by reduced pressure within the container 3. A cap base 2 has a sealing ring 6 which initially rests on a container 3 with its centre part 202 concave upwards (Fig. 1). When a bead 5 of a cap skirt 1 is rotated on to screw or bayonet lugs 4, a bead 7 produces both a downward force which compresses the sealing ring 6 against the upper surface 103 of the container 3 and a bending movement about the surface 103 which causes the frusto-conical surface formed by an annular part 302 and a curved surface 202 of the cap base 2 to reverse with a snap action (Fig. 2). As pressure is reduced within the container 3, the snap action reverses causing the curved surface 202 to become concave upwards and the annulus 302 to become approximately horizontal. Loss of vacuum within the container 3 allows reversal of curvature and thus gives a visual indication. The geometry of the parts, viz the conical nature of the skirt 1 adjacent to the bead 7 and also a conical part 102 and a flange 402 of the cap base 2 provide stiffness to the assembly. The large radial distance between the line of contact of the bead 7 on the conical part 102 of the cap base 2 and the pivot area 103 allows the snap action to occur with a minimum of vertical load on the bead 7 and hence a minimum of torque is required on the skirt 1.
Patent GB-971615-A (GB)
Title: Mandelic acid esters and process for preparing them
IPC: C07C69/732
Filed: 1963-04-08
Abstract: The invention comprises compounds of the general formula <FORM:0971615/C1/1> (wherein AC represents a formyl, acetyl or propionyl group) and physiologically tolerable acid addition salts thereof, their preparation by acylating one of the four stereoisomers of 4, 4-diphenyl-6-dimethylaminoheptanol-(3) with a reactive derivative of mandelic acid, the free hydroxy group of which is converted into a formyloxy, acetyloxy or propionyloxy group either before or after the acylation, optionally followed by acid addition salt formation, and pharmaceutical preparations containing them.  The compounds of the invention have a beneficial action on the heart and the blood circulation and some of them possess analgesic properties. They may be administered parenterally or orally in the form of pharmaceutical preparations (e.g. tablets or dragees) containing them in admixture or conjunction with a carrier.
Patent GB-403563-A (GB)
Title: Improvements in hydraulic variable-speed gearing
IPC: F16H39/40
Filed: 1933-05-16
Abstract: 403,563. Hydraulic transmission of power. MURAT, G., 28, Rue de Monceau, Paris. May 16, 1933, No. 14154. Convention date, May 19, 1932. [Class 69 (ii).] A hydraulic variable-speed gear comprises a motor R<1>, Figs. 1 and 2, the rotor of which has spring - pressed vanes 21<1> bearing on a fixed eccentric 26, and is connected to the driven shaft 22, and an enclosing pump rotor R connected to the driving shaft 5 and having vanes 21 bearing on a sleeve 6 of adjustable eccentricity. Two co-axial motors may be provided to form a differential gear. A reservoir 30 is connected through pressurerelief valves 31a, and suction valves 32a with chambers 29a connected to passages 23, 23a disposed between the pump and motor.
Patent GB-122146-A (GB)
Title: Improvements in or relating to Rotary Clutches.
Inventor: FEHR EDMUND
IPC: F16D13/14
Filed: 1918-08-31
Abstract: 122,146. Fehr, E., and Reimann, R. Aug. 31, 1918. Addition to 113,940. Clutches.-The clutch described in the parent Specification, in which clutch segments, which may take the form of rollers D, are pressed radially by springs but are normally retained by blocks G pressed inwards by springs, is modified by controlling the blocks by springs K which are carried in cheeks E, rigid with the driving-shaft A, and press catches M into engagement with bevelled recesses in the blocks. The rollers D are carried in plates O, which are pressed radially by springs S and balls T and have slots O<1> engaged by pins Q in the blocks G, guide-plates R secured on the pin ends embracing the sides of the plates O. When the wedge-rod A<1> presses out the blocks G, the rollers D engage recesses Y, in the driven wheel C and the plates 0 pivot about the pins Q until the rollers engage the edges of the cheeks E.