baber/WOPTO huggingface dataset:
Patent GB-537400-A (GB)
Title: Improvements in or relating to the manufacture of aluminium and aluminium alloys
IPC: C22B21/00
Filed: 1939-02-07
Abstract: 537,400. Aluminium; alloys. FOUNDAMINSKY, I. J., and LOEVENSTEIN, H. Feb. 7, 1939, Nos. 4032 and 4033. Convention dates, July 11, 1938, and Oct. 27 1938. Drawings to Specification. [Class 82 (i)] In a process of recovering aluminium or for making alloys of aluminium from material such as alloys or scrap or from aluminium containing impurities such as silicon, iron, titanium, and carbon, the material is subjected to an alloying treatment with zinc, tin, mercury, or alloys thereof, giving a product having a solidification point lower than that of aluminium, so that aluminium is obtained in the form of a molten alloy at a temperature at which only a small percentage of impurities are dissolved. When the pure metal is required, the alloying constituent is removed by distillation, if necessary under reduced pressure or in a suitable atmosphere, by electrolysis, or by a substance which forms an alloy with the extracting metal, and when alloys are required the removal is stopped at the appropriate point or the original alloying treatment takes place at such a temperature that the desired proportion of the impurities is alloyed with the aluminium and is retained after removal of the alloying constituent. The material to be treated may be prepared by reduction of an ore such as bauxite by carbon in an electric furnace whereby impure metal is obtained. The impure material may be mixed with the residues from a previous treatment and may be enriched as regards aluminium by a preliminary treatment to melt only the eutectic components which are richer in aluminium. The reaction may be carried out by bringing into contact in countercurrent manner the material and the treating substance which may be in the liquid or gaseous state or successively in both. After the treatment has taken place, the alloy is cooled to the solidification temperature at which it is decanted from the undissolved impurities; alternatively the alloy is solidified and remelted, which process may be repeated a number of times in succession.
Patent GB-905239-A (GB)
Title: Display device
IPC: A47B57/36
Filed: 1960-02-04
Abstract: 905,239. Rack stands for display. WING, H. Feb. 4, 1960, No. 4073/60. Classes 52 (3) and 52 (5). A display device comprises the combination with a rack member, formed of a plurality of bars 23 of rectangular shape in cross-section and spaced apart to provide one or more entrant slots 13, of one or more articleholding brackets 16, each bracket having vertically and horizontally spaced surfaces adapted when the bracket is in use, to interengage with the front and rear surfaces of the bars 23 and with the opposite sides of the slots 13 between adjacent bars. The bars 23 are held in spaced relation by vertical support rods 24 extending through holes in the bars and by collars 25 on the rods 24.
Patent GB-682792-A (GB)
Title: Improvements in or relating to structures or articles composed of prestressed concrete or other like prestressed mouldable material
IPC: E04C3/02
Filed: 1950-02-18
Abstract: 682,792. Reinforced concrete; lintels. JOHNSON, P. B. R. Aug. 3, 1950 [Feb. 18, 1950], No. 4214/50. Class 20(iv) In the manufacture of prestressed concrete structures, hangers, holder fittings &c. which are to project from the finished section are connected to one or more of stressed reinforcement components so as to be held at preselected positions in a manner preventing sideways, vertical and possibly longitudinal displacement. A holder fitting comprises portions 101, 102, connected by a link strap 103 through' slots 104 in which tensioned reinforcement wires 100 pass. Timber may be threaded through portion 101 and secured in portion 102 by screws passing through slots 105. Joists 107 used in reverse position may have tongued and grooved floorboards nailed to timber pieces 109 and a lath and plaster ceiling secured to the timbers 108. A number of modified hangers are described, some provided with set screws or wedges for preventing longitudinal displacement. A lintel formed of stone sections 136 aligned by dowels 137 has a posttensioned reinforcement bar 100 embedded in cement grout 144 in a groove 139, lugs 140 for attaching a window frame 145 being spaced along the bar and screwed thereto by set screws.
Patent GB-946252-A (GB)
Title: Improvements in or relating to an arrangement in erecting shops and similar places of work for use in the production of composite constructions
Inventor: KNUDSEN MOGENS
IPC: B25H7/04
Filed: 1961-02-03
Abstract: 946,252. Drilling. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI A.S. Feb. 3, 1961 [Feb. 29, 1960], No. 4219/61. Heading B3C. [Also in Division B4] Apparatus for marking out large work components or assemblies comprises a beam 1 which runs on rails 2 extending in the longitudinal direction of the erection shop on opposite sides of the working zone one or both rails being provided with graduations 3, a carriage 4 provided with one or two sets of graduations 8 and movable along the beam transversely of the rails 2 and a marking member 7 mounted on the carriage 4. As shown the marking member 7 comprises a projector for projecting cross line markings vertically. The member 7 may be replaced by a drill spindle. The beam 1 and carriage 4 are controlled by servomechanisms and electronic controls, a control desk being provided at which there is a continuous indication of the momentary coordinates of the marking member 7. In a modification, the readings of the positions of the beam 1 and carriage 4 are performed by optical observations. In another modification, the graduations 3 and 8 are constituted by teeth on a rack which co-operate with gear-wheels the turning of which is transmitted to an observation point. Several beams 1 may be arranged to run along the same set of rails 2. Two or more carriages 4 may be mounted on the same beam.
Patent GB-443950-A (GB)
Title: Improvements in and relating to paper bags
IPC: B65D30/18
Filed: 1934-09-11
Abstract: 443,950. Paper bags. PAPER SACKS, Ltd., and ROBINSON, F. G., 1, Redcliffe Street, Bristol. Sept. 11, 1934, No. 4227 /36. Divided out of 443,920. Drawings to Specification. [Class 94 (ii)] A method of forming composite tubes for making into block-bottom multi-ply bags comprises cutting sheets or severing blanks from webs with sides (which are to form the ends of the bag tubes when folded) having transverse lines joined by oblique lines disposed to form notches and shoulders, assembling the sheets or blanks together so that the tube folding lines will pass through or adjoin the oblique parts and folding the sheets or blanks to form bag tubes so that the oblique parts form a V-shaped notch at the ends of the tube folds. The subject-matter is identical with that described with reference to Figs. 2, 3, 5, 7 and 13 of Specification 443,920. An additional U- shaped piece may be applied over the edges of the outer wall of the valve formed by uniting the side flaps. Specification 343,447 also is referred to.
Patent GB-371081-A (GB)
Title: Improvements in coin-freed apparatus
IPC: G07F17/32
Filed: 1931-02-11
Abstract: 371,081. Coinfreed article or money delivering apparatus. MANBRE, G., 18, Harting- ton Road, Sefton Park, and STOTT, J., 9, Sheil Road, Kensington, both in Liverpool. Feb. 11, 1931, No. 4273. [Classes 27 and 116.] Coin action, mechanical connection and with delivery proportionate to value of coin.-In coinfreed apparatus, preferably used as the prize delivery mechanism in amusement apparatus but which may also be adapted for change giving, coins, tokens, &c. of different size, denomination and shape are used as a clutch medium between two slotted rotatable discs to cause the delivery of one or more coins &c. The discs h, f, Figs. 1 and 2, are revolvably mounted on a pin b which is mounted in a boss a<3> on a baseplate a having projections a<4>, a<5>, a<6>, Fig. 7, corresponding to slots f<3>, h<4>, f<2>, h3, f<1>, h<2> in the discs h, f. A V-shaped bracket a7, a<8> on the plate a supports a tube d containing coins E, the lowermost of which is supported on the projection a<7> and lies in a recess fll in the disc f. A coin or the like inserted in a shoot leading to the slot h<4> falls into the slot f <3> and is supported on the projection a<6>. On rotating the disc h by a handle m connected to a flange h<6> thereon, the coin is moved from the projection a<6> and is held between the discs h, f until a full stroke of the handle has been completed. During the initial rotation of the disc f the coin. lying in the recess f<11>, is ejected by a projection f<8> on the disc to a return shoot. On continued rotation of the disc, coins fall into recesses f<12>, j<13> and are ejected by a projection f<9> and edge f<10> respectively to the return shoot. When the handle m is released the grip on the coin in the slots f<3>, h<4> is relaxed and the coin falls to the return shoot or may be retained in the machine. If a coin or the like is led to the slot h<3> it falls into the slot f<2> on to the projection a<5>. On rotation of the plate h the coin and consequently the disc f remain stationary until the back edge of the slot h<3> engages the coin, when the disc f rotates sufficiently to enable two coins to be ejected. from the tube d. Similarly if a coin is introduced into the slot h2 only one coin is rejected. When the handle m is pushed in, the edge h<1> of the plate h engages a projection f<7> on the disc f so as to return the latter to its initial position. A ring c, connected by a spring k to the flange h<6>, enters a slot d<1> in the tube d during the outward movement of the handle m and engages the edges of the coins partially to support their weight. In a modification the slots in the disc f are arranged at right-angles to those shown in Fig. 1, the plates h, a being modified accordingly.
Patent GB-624578-A (GB)
Title: Manufacture of biguanide derivatives
IPC: C07C279/26
Filed: 1947-03-14
Abstract: Biguanide derivatives, useful as chemotherapeutic agents or as intermediates therefor, and of the general formula RNH-C(=NR1111)-NH-C(=NH)-NR11R111 wherein R111 represents hydrogen or a hydrocarbon radical, R and R11 each represent a hydrocarbon radical, at least one but not more than two of R, R11 and R111 (any or all of which may bear one or more non-acidic substituents) being aryl, and R1111 represents an alkyl radical, are manufactured by the process of the parent Specification from guanidine derivatives of the formula RNH-C(=NR1111)-NH2, of which a long list is given together with numerous examples of products obtainable therefrom. Particularly useful as antimalarials are compounds in which, in the general formula above, R is an aryl radical substituted by at least one halogen atom in m- or p-position to the nitrogen atom, R1111 is an alkyl radical of not more than four carbon atoms, and R11 and R111 together contain more than one and fewer than eight carbon atoms, or in which one of R11 and R111 is hydrogen and the other an aryl radical substituted by at least one halogen atom in m- or p-position to the nitrogen atom, R1111 is an alkyl radical of not more than four carbon atoms and R contains more than one and fewer than eight carbon atoms.  Guanidine derivatives of the second general formula above are obtainable by condensing the appropriate amine hydrochloride with an alkyl isothiocyanate to give an N : N1-disubstituted thiourea, treating this with methyl iodide to form the corresponding S-methyl isothiourea hydriodide and treating this with alcoholic ammonia, or (when R is aryl) by condensing the appropriate arylcyanamide with the appropriate alkylamine hydrochloride.
Patent GB-451771-A (GB)
Title: Improvements in or relating to coated sheet metal and process of making the same
IPC: B21D5/01
Filed: 1935-02-11
Abstract: 451,771. Making compound sheets. WEAN ENGINEERING CO., Inc., Warren, Ohio, U.S.A.-(Assignees of Wean, R. J.) Feb. 11, 1935, No. 4333. Convention date, Feb. 20, 1934. [Class 83 (ii)] [See also Groups II, X, XVII, and XXIII] Coated sheet metal is manufactured by subjecting a metallic base to centrifugal blasting, with or without a preceding pickling treatment, prior to the application of the metal coating. The coating may be carried out by dipping and the base metal may be in the form of strip, preferably of long length. The opposite surfaces of the strip may be centrifugally abraded to different extents or the strip may be pickled, dried, and one side only then subjected to the centrifugal blast. A strip formed by hot rolling or hot and cold rolling from a slab of metal is fed from a reel 6, Fig. 2, over table 7a, 7b, to a reel 8 and in its passage over the table is subjected to the action of abrasive particles 9, e.g. sand or metal shot, from centrifugal blasting wheels 10 and 11. Each wheel comprises spiral passages 15 by which the material is ejected and to which it is fed through a pipe 13 leading into a stationery member 14 having an opening extending around a limited portion only of its periphery. The cleaned and roughened strip is fed through a bath 16 of acidulated water, Fig. 4, and then through a layer of flux 20 into molten metal, e.g. tin lead, or zinc, in a pot 17 heated by burners 18. A thin coating of tin may be applied prior to coating with a thicker coating of lead. The final appearance of the coated metal may be varied by varying the force of the blasting and the thickness of the coating. The coated product may, for example, be used for roofing, culverts, and fencing, for which purposes strips of long length are preferably employed, for billboards, and for baking pans having a " silver-tin " finish. U.S.A. Specification 1,953,566 is referred to.
Patent GB-288404-A (GB)
Title: Improvements in reciprocating compressors
IPC: F04B25/00
Filed: 1927-02-16
Abstract: 288,404. Scott, A. Feb. 16, 1927. Multi-stage piston pumps; starting and stopping pumps automatically.-A multi-stage compressor comprises a series of cylinders B - - B<3> of decreasing volumes in which free pistons C - - C<3> are actuated on the delivery stroke by eccentrics U, U<1> set 180‹ apart on a rotating shaft. The piston C is returned on the suction stroke by a spring D engaging a projection E thereon, and draws air in through a valve E<1> and expels it on the delivery stroke through a valve H and passage G into the cylinder B<1>, where it effects the return stroke of the piston C<1>. On the delivery stroke of the piston C<1> the air is forced through a valve H<1> and passage G into the cylinder B<2>. It is then forced by piston C<2> through valve H<2> and passage G into cylinder B<3>, from which it is finally delivered to the delibery pipe L<2> and an air chamber J<1> containing a piston K<1>. As the delivery pressure increases, the piston K<1> rises and engages a pin J<3> in a sleeve J<2> slidably mounted on the chamber J<1> and engaging the spring D. The spring is compressed and lifted off the projection E on the piston C, and while in this position the piston C is returned by a piston K engaging the projection E and exposed on its upper face to the air pressure in a chamber J open to the passage G. An adjustable pressure indicator N, which may be set to any desired pressure at which the apparatus is to work, carries a spring release valve N<1> which is opened by a pressure piston P<2> when the delivery pressure in the pipe L<1> exceeds the pressure at which the indicator is set. The opening of the valve N<1> releases the pressure in the chamber J so that the piston K does not return the piston C, and the compressor ceases to operate.
Patent GB-731554-A (GB)
Title: Improvements in or relating to vortex furnaces
IPC: F23C3/00
Filed: 1953-02-16
Abstract: 731,554. Cyclone furnaces. BABCOCK & WILCOX, Ltd. Feb. 16, 1953 [Feb. 15, 1952], No. 4339/53. Class 51 (1). A vortex furnace chamber is provided with a slag screen 19 disposed in the path of gases flowing to the gas outlet 21 from the chamber and comprising longitudinally-extending tubes grouped around the axis of the chamber. The tubes are arranged about a central gas outlet passage 20 co-axial with the furnace chamber and communicating at its end with the gas outlet. Pulverulent fuel is admitted tangentially through nozzle 30 and secondary air tangentially through nozzles 31 and 32. Further air is admitted through nozzle 33. In a modification, Fig. 3, the chamber is of substantially square cross-section, and the roof 50 is formed with a central square gas outlet 51 leading to a radiation chamber 52; the slag screen is formed by widely-spaced tubes 61; the chamber is corner-fired by burners 41 with which are associated secondary-air nozzles 42, 43, the arrangement being the same as that described in Specification 710,848.
Patent GB-734874-A (GB)
Title: Improvements in or relating to packings for vapour-liquid and gas-liquid contacting systems
Inventor: MCWILLIAMS JOSEPH ANTHONY
IPC: B01J19/30
Filed: 1953-11-17
Abstract: 734,874. Contacting gases with liquid. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 17, 1954 [Nov. 17, 1953], No. 4400/53. Class 55 (2). Packing for a gas-liquid contact column comprises a number of contiguous sheets of mill-expanded metal, defined as being expanded metal in which the uncut webs of the metal sheet are all inclined to the plane of the cut sheet in the same sense and the apertures of which are of identical diamond-shape, arranged so that the inclined webs 6 in any one layer are oppositely inclined to those in an adjacent layer and adjacent sheets are staggered by half the pitch between the uncut webs. U.S.A. Specification 2,470,652 is referred to.
Patent GB-1080612-A (GB)
Title: Engine starter clutch device with centrifugal clutch disengaging means
IPC: F02N15/02
Filed: 1966-02-01
Abstract: 1,080,612. Ratchet clutches. BENDIX CORPORATION. Feb. 1, 1966 [Feb. 8, 1965], No. 4405/66. Heading F2C. [Also in Division F1] In a centrifugally disengaged engine starter clutch wherein a driven clutch member 32 in helical spline connection with a drive shaft 20 is leftwardly resiliently urged to engage its teeth 34 with teeth 18 of a driving clutch member 16 splined on a starting motor shaft 12, weights 44 in a cavity 46 of the member 32 wedgingly engage a radial face of a wall 45 of the member 32 and a conical face of a flange 40 of an extension 28 integral with or bolted to the driven shaft, so that on centrifugal movement of said weights, at driven shaft speeds above the starting motor cranking speed but below engine idle or self-operating speed, the member 32 is rightwardly moved to disengage the teeth 18, 34. The resilient clutch engaging means may be an elastic, e.g. rubber, material or, as shown, a spring 52. The driven clutch member 32 may be helically splined inside, or, as shown, outside a collar 24 integral with or splined on the driven shaft. To prevent full bottoming of the clutch teeth, their engagement is limited by contact of a shoulder 62 of the collar 24 and an abutment 58 supported by a split ring 60 on the member 32. Due to the inertia of the weights, the clutch teeth are not disengaged on momentary overspeed.
Patent GB-433216-A (GB)
Title: Hair waving apparatus
IPC: A45D4/12
Filed: 1934-02-10
Abstract: 433,216. Hair waving appliances. DEHN, F. B., 103, Kingsway, London.- (Shelton Co., W. G. ; 1709, Locust Street, St. Louis, Missouri, U.S.A.) Feb. 10, 1934, No. 4492. [Class 131] A hair-waving appliance comprises a flexible sheet-like electrically-heated pad adapted to be carried and held in contact with the wound tress, by a light manually-operated spring clip. The pad comprises outer layers 4 of pliable metal such as aluminium, intermediate layers 3 of asbestos paper, and inner layers 2 of mica or other insulating material between which is situated a thin metal electrical resistance 1 of grid-like formation. The resistance 1 is provided with perforated ends which engage threaded studs 6 embedded in the pad, the outer metal layer 4 being insulated therefrom by bushes 9. Terminals 7 are screwed on the studs 6. The clip comprises jaws 10 extending the length of the pad and connected by a central strip 12 and end strips 11, the strips 11 being formed with perforations 13 which fit over the bushes 9. The jaws 10 are provided with handles 14 and with inturned edges for engaging the edges of the pad. Specification 377,815 is referred to.
Patent GB-968090-A (GB)
Title: Improvements in and relating to semiconductor devices
IPC: H01L21/00
Filed: 1961-02-07
Abstract: 968,090. Semi-conductor devices. PHILCO CORPORATION. Feb. 7, 1961 [Feb. 26, 1960], No. 4526/61. Heading H1K. In a semi-conductor device such as a Si transistor, a high temperature resistant ohmic joint between a Si body and a metal element is produced by using Pt and Ni as bonding agents. As shown, a Si wafer 1 is placed on a support 4 of graphite-coated alumina in overlapping relation with a base tab 2 of Mo, the surface of which adjacent the Si wafer is electroplated with layers of Pt and Ni, the latter containing a significant impurity, such as B or P, characteristic of the conductivity type of the wafer. Bonding is effected by heating, if desired in an inert, e.g. A, atmosphere, at a 1000 C. for 10-15 sees., by passing current through tab 2 via two W probes 7, 8 bearing on the tab. Before the bonding step, the Si wafer is dipped in HF acid, rinsed in de-ionized water, and dried, and the tab is cleaned in concentrated H 2 SO 4 . The tab, which may alternatively be of Ta, W, or Nb, is preferably given two strike coats, one of Cr and one of Ni, before the Pt layer is applied in a known Pt bath. The impurity-containing Ni coat is then applied. A Ni-B bath comprises NiSO 4 .6H 2 O-300 g./l.; NiCl 2 .6H 2 O-60 g./l.; H 3 BO 3 -38 g./l. ANi-P bath comprises NiSO 4 .6H 2 O-175 g./l.; NiCl 2 . 6H 2 O-50 g./l.; H 2 PO 4 -50 g./l.; H 3 PO 3 - 1.3 g./l.; plus 14 g. NiCO 3  neutralized with c. 50 g. H 3 PO 4 . Cladding or deposition by thermal evaporation may be employed instead of electroplating.
Patent GB-724941-A (GB)
Title: Improvements in or relating to contrast control-circuit arrangements for use in television receivers
IPC: H04N5/53
Filed: 1953-02-18
Abstract: 724,941. Television. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 18, 1953 [Feb. 21, 1952], No. 4541/53. Class 40 (3). A contact control arrangement for a television receiver comprises a potentiometer 12, the fixed element of which is connected in the cathode circuit of the video amplifying valve 8 and the movable element, 11, of which is connected to one side of the video detector circuit 1, 2, 3, 4. This allows a comparatively cheap, e.g. carbon &c., potentiometer, to be employed since substantially zero current passes via the movable element 11. The current flowing in the fixed element 12 may be reduced by means of a shunt resistor 13 of lower valve than 12. Automatic gain control voltage for application to the stages of the receiver preceding the video detector is obtained by integrating, in the network 25, 26, the output of a valve 21 to the cathode of which the composite video signal (developed across 12, 13) is fed and the anode of which is pulsed positively by means of pulses 29 derived from the line scanning generator 28. Overloading of the E.H.T. supply (e.g. due to a sudden increase in the mean image brightness) is prevented by means of the decoupling network 18, 19 which causes the voltage at the screen-grid 17 of valve 8 to vary inversely as the amplitude of the input video signal.