baber/WOPTO huggingface dataset:
Patent GB-838263-A (GB)
Title: Improvements in or relating to methods of continuously melting metal and electric arc vacuum furnaces for use therein
IPC: C22B34/10
Filed: 1958-06-09
Abstract: 838,263. Arc melting furnaces. HERAEUS G.m.b.H., W. C. June 9, 1958 [June 8, 1957], No. 18344/58. Class 39(3) [Also in Group XXII] In the continuous melting in an arc vacuum furnace of metals such as zirconium and titanium, rods 1 of the metal are fed into the furnace through an entry chamber 2 with a top cover 3 sealing the chamber against atmosphere and a lower cover 4 which may be swung out into an extension 5, and after evacuating the chamber 2 by a pump 6, the rod 1 is lowered by rollers 7 driven by a motor 8 into an adjacent part 9 of the furnace, to the position 10, where it is lowered by rollers 11 driven by a motor 12 against the electrode 13 to which it is welded by current fed to the metal 10, 13 by contact rollers 16, 17 by resistance or arc welding. The consumable electrode 13 is then melted by an arc 19 to form a first ingot 24 which is continuously lowered by rollers 28 and is melted by an arc 30 to form a second-ingot 32 of the required diameter, which is removed from the vacuum chamber without interrupting the continuous melting and while still maintaining the vacuum in the chamber. The ingots shrink slightly away from the watercooled jackets 22, 31 in which they are formed, and as the second ingot 32 is lowered by rollers 35 out of the furnace, the vacuum around it is maintained by a first vacuum jacket 33 connected to 'a vacuum pump 34 and the ingot 32 then passes through a second vacuum jacket 37 evacuated by a pump 38. Alternatively as in Fig. 2 the ingot 32 while still in the vacuum chamber is cut transversely at intervals at 50 by a circular saw 49 in an extension 48 of the chamber. The detached piece 58 of the ingot is moved by rollers 51 into a chamber 53 evacuated by a pump 54.. A cover 55 is then swung from a chamber 56 to seal the bottom of the evacuated furnace chamber, and after release of the vacuum in the chamber 53 containing the piece 58, a lower cover 57 is opened to remove the metal 58. Current is supplied by a generator 39 to the metal rod 10 at 16, to the electrode 13 at 20 through a choke 62 and to the first ingot 24, so that some of the current welding the rod 10 to the electrode 13 is fed to the arc 19. Insulating layers 15, 23 and 32 are placed between water-jacketted parts of the furnace 9, 14, 25 and 31 to which vacuum pumps 6, 21 and 27 are connected. The length of the first melting arc 19 is adjusted through a motor 18 driving the feeding rollers 20 of the electrode 13 through a control 41, and the length of the second melting arc is adjusted by a control 42 of a motor 36 driving feed rollers 35 of ingot 32. The first ingot 24 moves at constant speed.
Patent GB-1401662-A (GB)
Title: Service boxes for animal drinking troughs
IPC: A01K7/04
Filed: 1972-04-20
Abstract: 1401662 Service box for animal drinking trough TANKS & DRUMS Ltd 19 April 1973 [20 April 1972] 18359/72 Heading AIM A box constructed to fit and be secured on the sides T of an animal drinking trough covers the ball-valve equipment and instead of having a detachable cover is provided with one or more hand holes D in one of the sides to give access to the ball valve. In an alternative construction the top A is raised above the top of the trough and the ball valve is secured to the service box. A further construction with only one side plate 6 is arranged to fit at one end of a trough. A window or opening may be provided in the top of the box.
Patent GB-707589-A (GB)
Title: New isothiocyanates
IPC: C07C331/28
Filed: 1951-08-02
Abstract: The invention comprises 4-isothiocyanate-2-hydroxybenzoic acid, its salts, especially the alkali metal and alkaline earth salts and its esters, such as the lower alkyl esters wherein the alkyl group has 1-4 carbon atoms.  They are prepared by reacting 4-amino-2-hydroxybenzoic acid or its salts or esters with thiophosgene, suitably at 0-5 DEG  C., in water or an aqueous organic solvent and if desired in the presence of an acid-binding agent. In examples, thiophosgene is reacted with 4-amino-2-hydroxybenzoic acid and with its methyl ester to give 4-isothiocyanate-2-hydroxybenzoic acid and its methyl ester. Specification 707,590 is referred to.
Patent GB-863442-A (GB)
Title: Improvements in or relating to photographic printers
IPC: G03B27/58
Filed: 1958-06-09
Abstract: 863,442. Photographic projection-printing apparatus. KODAK Ltd. June 9, 1958 [June 13, 1957], No. 18388/58. Class 98(1) In a projection printer, in which the movement of a printing mask moves a platen away from a printing aperture, the platen carries with it the printing paper so as to permit unobstructed insertion and withdrawal of the mask across the aperture and preferably through a light-trapped opening in the cabinet of the printer. In one form a web of printing paper runs under platen 30 and over arms 32 and, in operation, is sandwiched between platen 30 and mask 40, so that bent lugs 36 pass through slot 44 and enter channel 14 in frame 10. When mask 40 slides from left to right over frame 10 its frictional engagement with lug 36 lifts platen 30 and moves connecting members 28 against the rear pillars 26 of the yokes 22 in which they lie. One yoke 22 provides sufficient play for lug 36 to move into line with inclined edge 47 of slot 44. Thus the trailing edge 43 of mask 40 clears the corresponding edge of the printing paper before lug 36 enters slot 44 and rides along edge 47 to bring the platen into the operating position. Spring detents arranged on the rear wall of the cabinet engage aperture 48.
Patent GB-1171414-A (GB)
Title: Fibre Opening and Blending Machine
IPC: D01G7/04
Filed: 1968-04-18
Abstract: 1,171,414. Opening and blending fibres. CARDING SPECIALISTS (CANADA) Ltd. 18 April, 1968 [21 April, 1967], No. 18393/68. Heading D1N. A continuous package 25 of fibres consisting of layers of different fibres in superposed stepped relationship is fed by horizontal conveyor 200, while at the same time being confined laterally by conveyors 202, 203, into contact with vertical stop bars 201 and while held against the bars with a predetermined force determined by the rate of feed of conveyors 200, 202, 203 tufts of fibres are removed from the leading face by a vertically reciprocating unit 3. A pair of pusher plates 245 are. provided adjacent the bars 201 to clamp the leading end and push the end from side to side alternately. The side conveyors 202, 203 apply a converging force to the sidefaces of the package and then travel in parallel planes. The conveyors 200, 202, 203 have a common drive motor 239 which feeds the package forwardly at timed stages, the side to side movement brought about by plates 245 being effected while the conveyors are stationary. Teeth on counter rotating cylinders 3 within unit 3 pluck tufts from the package. Tuft size is controllable by regulating the depth of penetration of the teeth beyond bars 201.
Patent GB-1466557-A (GB)
Title: Connector portion having releasable fastening means
IPC: H01R4/60
Filed: 1974-05-07
Abstract: 1466557 Two-part couplings KW LEEKEMP 7 May 1974 [8 May 1973] 18404/76 Divided out of 1447243 Heading H2E A male coupling part comprises coaxial cylindrical outer and inner shells 133, 132, a cylindrical band located between the shells and having integral resilient catches each consisting of an arm 130 and a catch-part 135 which extends through an opening 134 in the outer shell 133; the outer shell being slidable over the inner shell to depress the catch-part and disengage it in use from a complementary female part and having an internal shoulder defined by a narrow internal diameter of the outer shell at its forward end than at its rearward end; the inner shell having an external shoulder complementary to the internal shoulder; the band having rear end 139 located against the internal shoulder and a tang 136 extending inwardly and forwardly and engaging in a recess 138 or a projection (137) on the inner shell. The band is either machined from solid stock or formed from sheet material and the arms are formed by slits along the band. The narrow forward portion of the outer sleeve seals, in use, against the female part.
Patent GB-716952-A (GB)
Title: Process for treating fibrous material
IPC: C08K3/38
Filed: 1950-07-24
Abstract: An aqueous bath, for the treatment of textiles, paper and wood pulp, contains a thermosetting resin, e.g. methylolmelamine methyl ether, dimethylol urea or dimethylol melamine, and a catalyst for hardening the resin on heating, the catalyst being produced in concentrated aqueous solution by the action on boric acid of a colourless water-soluble salt of a strong acid, having a dissociation constant of at least 2.1X10-4 and being at the most dibasic, with such a metal of the first or second group of the periodic system as possesses an atomic weight not higher than that of calcium.  Salts of formic, monochloracetic, malic, glyoxylic, tartaric, fumaric, sulpharic, nitric and hydrochloric acids may be employed, specified salts being sodium, potassium, lithium, magnesium and calcium chlorides and calcium nitrate.  In Examples, other additions to the bath are acetate of the condensation product of stearic acid-N-methylolamide with triethanolamine, a mixture of the sodium salt of m -heptadecyl-N-benzyl-benzimidazole disulphonic acid with the sodium salt of the semi-ester of phthalic acid and oleic acid ethanolamide, an ethylene oxide-olein alcohol condensation product and gum tragancanth.ALSO:Yarns and fabrics, for example of regenerated cellulose or cotton, are given a resistance to creasing, swelling and shrinking, and an increased wet strength, by impregnating them with an aqueous bath containing a thermosetting resin, especially an aminoplast such as an aldehyde-urea, -thiourea or -aminotriazine condensate, and hardening the resin by heating, hardening of the resin being effected in the presence of a catalyst produced in concentrated aqueous solution by the action on boric acid of a colourless water-soluble salt of a strong acid, having a dissociation constant of at least 2.1 X 10-4 and being at the most dibasic, with such a metal of the first or second group of the periodic system as possesses an atomic weight not higher than that of calcium.  The process also serves to fix mechanical effects and dyes, pigments and finishing agents on the materials.  Salts of formic, monochloracetic, malic, glyoxlic, tartaric, fumaric, sulphuric, nitric and hydrochloric acids may be employed, specified salts being sodium, potassium, lithium, magnesium and calcium chlorides and calcium nitrate.  Examples are given in which the resins are methylol melamine methyl ether, dimethylol urea and dimethylol melamine, other additions to the aqueous bath being the acetate of the condensation product of stearic acid N-methylolamide with triethanolamine, a mixture of the sodium salt of m -heptadecyl-N-benzyl-benzimidazole disulphonic acid with the sodium salt of the semi-ester of phthalic acid and oleic acid ethanolamide, an ethylene oxide-olein alcohol condensation product and gum tragacanth.
Patent GB-1243789-A (GB)
Title: Power transmission
Inventor: MURPHY MICHAEL
IPC: F16H55/56
Filed: 1968-04-19
Abstract: 1,243,789. Expanding - wheel gearing. WILLIAM KENYON & SONS Ltd. 14 April, 1969 [19 April, 1968], No. 18504/68. Headings F2D and F2U. The movable disc 14 of an expanding pulley is connected to the fixed disc 12 by key members each consisting of a series of roller bearing elements 18 mounted in complementary semicircular grooves 10a, 16a in the respective members and held against a shoulder in disc 14 by a retaining ring 20, so as to be movable with the disc but also capable of independent continual adjustment under load to avoid fretting corrosion. Ring 20 carries groove sweepers 22 which serve to keep grooves 10a free of foreign matter and also retain lubricant in the bearing space. A collar 26 mounted on a bearing 24 is operable by a control lever to adjust the axial position of disc 14. In a modification, Fig. 3 (not shown), the discs 12, 14 are loaded by a helical spring (40).
Patent GB-557061-A (GB)
Title: Improvements in or relating to photographic film apparatus such as a camera or optical projection apparatus
IPC: G03B19/04
Filed: 1942-12-31
Abstract: 557,061. Film cameras and projectors. KODAK, Ltd. Dec. 31, 1942, No. 18611. Convention date, Feb. 13, 1942. [Classes 97 (i) and 98 (i)] In a photographic film apparatus, such as a camera, or in a film projector, a manual winding member rotates a member engaging the film spool to unwind the film and pass it to a takeup chamber in which it coils upon itself, and at the same time tensions the spring of a motor which rotates the spool to re-wind the film on it after each exposure. In the camera shown, the film is first wound from the supply spool S into a take-up chamber 29 by the winding Handle 87, which through gearing rotates the driving-spindle 18 and also winds up a spring 35. Return of the film by the spring is prevented by a pawl 37 engaging the gear 34 and mounted on a spindle 41 which also carries an arm 39 adaptable to engage in slots 38 formed in the edge of the film and spaced at distances equal to the length of the film to be fed. The camera is provided with a shutter comprising a pair of arcuate oscillatable blades 7, 8 the latter of which carries a pivoted trip member 42 which, on the return of the shutter members after an exposure, trips the arm 39 and with it the pawl 37. The spring 35 then winds the film back on to the spool S until the mechanism is arrested by the arm 39 engaging the next slot in the film. The film is wider than the distance between the peripheries 22 of the spool flanges, and is caused to wind freely by being given a transverse curvature by a concave guide roller 24. The free end of the film is caused to coil upon itself in the chamber 29 by a leaf spring 30. An optical projection apparatus is described in which a film is similarly wound back on to the supply spool, a pivoted arm locking the mechanism when a pin carried by it engages a notch in the film and releasing it to feed the film when the pin is raised by a slide moved by a Bowden cable.
Patent GB-1012150-A (GB)
Title: An extensible girder for supporting shuttering
Inventor: ROMEK ARPAD
IPC: E04G11/56
Filed: 1962-05-15
Abstract: 1,012,150. Lattice girders for supporting shuttering. SECO, STEEL EQUIPMENT CO., P.V.B.A. May 15, 1962, No. 18663/62. Headings E1K and E1S. In a telescopic girder for supporting shuttering the inner member 2 is a loose lateral fit in the outer member 1 and the members are relatively aligned by longitudinal ribs 6, 9. A gap is provided between the ribs. The outer member comprises an upper inverted channel 5 having strengthening beads 13 connected by zigzag lattices 30 with the rods 32, 33 of the lower boom which have cross members 34 at each end carrying screws 26 to clamp the inner member 2. The inner member comprises a triangular section tube 8 connected by a zigzag lattice 50 to two angles 40. The ends of the outer member 1 are strengthened by rods 23 or extensions of the end claws. The inner member has a guide to facilitate its introduction into the outer member. The axes of adjacent parts of the lattice 30 intersect in the plane of the neutral axis of the upper channel 5. Specification 1,012,149 is referred to.
Patent GB-1100042-A (GB)
Title: Fluid-flow control valves
Inventor: MORRIS ARTHUR KENNETH
IPC: F16K17/04
Filed: 1964-05-05
Abstract: 1,100,042. Valves. DOWTY MINING EQUIPMENT Ltd. 28 April, 1965 [5 May, 1964], No. 18692/64. Heading F2V. A fluid control valve is moved towards the closed position by a spring 27 upon removing an actuating force from a stem 7; a seating ring 24 engages a seat 26 and allows for misalignment of the stem 7. Fluid pressure in the inlet 5 acts on a piston 8 firstly augmenting the spring 27 and then providing the main closing force whereby the moving closure member 23 engages the seat 26 and the inlet pressure leaks round the ring 24 to act on the underside thereof and on a supporting cushion member 25, the latter preventing leakage between the ring 24 and member 23 whilst the ring 24 seals the small gap upstream of the seat 26 and between a base 2 and a stem enlargement 14 with a tapered face 12. The parts 14, 12 provide resistance to flow during the opening and closing movements of the valve. The sealing rings 24, 25 and closure member 23 are disposed between two stem flanges 13, 17 by a nut 21. The positions of the seat and moving closure member may be interchanged.
Patent GB-1214106-A (GB)
Title: Improvements in or relating to switching networks for telecommunications exchange systems
IPC: H04Q3/545
Filed: 1969-04-11
Abstract: 1,214,106. Automatic exchange systems. SIEMENS A.G. 11 April, 1969 [12 April, 1968], No. 18704/69. Heading H4K. In a programme controlled exchange having a memory map for path finding purposes, switching network growth is accomplished without imposing any temporary limitation on the exchange's traffic handling capacity and without interference with existing connections. The underdeveloped, end-connected network shown in Fig. 1 comprises a plurality of twostage sections KGr111-KGr122 which are interconnected by parallel links such as B11a B11b and B12a, B12b. When the network has fully grown (Fig. 2) the original links B11b and B12b for example have been reconnected as new links B12 and B14 respectively. Examples of networks using 3-stage sections which have inlets and outlets on opposite sides or on one side only viz. a folded network, are depicted respectively in Figs. 5 and 6 (not shown). Fig. 3 shows a "memory map" store in which storage compartments in the successive rows ZLAB, ZLCD, ZLBC contain the free/busy states of the AB, CD and BC links respectively. The dashed storage positions kx, ky bv, bw are reserved for the additional links in the enlarged network. During normal path finding, free AB and CD links pertinent to a marked inlet and outlet are found by scanning the ZLAB and ZLCD rows and thereafter suitable BC links are found using the ZLBC row, the "a" links of parallel sets of links being taken in preference to the "b" links. While the network is being enlarged, the computer R instructs the store, using rows SAD-UP, that path finding over the "b" links must not be attempted. Thereafter a predetermined time is allowed to elapse in order that existing connections over the "b" links can be released. At the end of this time any remaining connections are rerouted. With the new network configuration achieved test calls are set-up in order to verify correct operation viz. no double connections and complete switch through. The free/busy states of the components in the enlarged portion of the network are then written into the map e.g. kx, ky and b11 (instead of b 11a) and the computer withdraws thereby allowing normal call processing to continue. It should be noted that during enlargement, although there is obviously a degradation in traffic capacity between sections linked by more than one set of links due to the removal of one of three sets, there is no overall degradation since the traffic capacity between stages is merely being brought into line with the design value. For a folded network in which connections do not have to extend through the full number of stages, a slightly modified memory map which takes account of the "short-route" facility is provided (Fig. 4, not shown). The following Specifications describing memory maps are referred to:-1,155,682 (Belgian 699,069), 1,123,282 (German 1,258,478), 1,029,051 (German 1,072,273) and U.S.A. 2,955,165 (German 1,190,518).
Patent GB-569281-A (GB)
Title: Improvements in screening arrangements for radio, television and like apparatus
IPC: H05K9/00
Filed: 1943-11-11
Abstract: 569,281. Wireless apparatus. JACKSON, D., and PYE, Ltd. Nov. 11, 1943, No. 18733. [Class 40 (v)] In a screening arrangement employing screening cans held in position on a chassis, a screening can is of tunnel or arch form, the sides of which are adapted to engage with clip members on the chassis by means of interlocking elements, and the chassis carries screening plates between which the can is placed and which are adapted to close the open ends of the can. Fig. 2 shows a series of screening cans 1 of tunnel section with stiffening flanges and formed with pairs of depressions 2 for locking engagement with corresponding projections 7 on flanges 6 at the edges of the chassis 5. The edges of the cans are formed with grooves 8 for guiding the can into locking position where it is firmly held in good electrical connection with the chassis. Between adjacent cans and at the ends of a line of cans are transverse screens 9 which complete the screening enclosures. The intermediate screens 9 may be arranged to span apertures 12 for valve holders so as to screen the input terminals from the output terminals. Specification 523,440 is referred to.
Patent GB-1045119-A (GB)
Title: Manufacture of adiponitrile
IPC: B01J27/16
Filed: 1965-05-04
Abstract: A process for the preparation of adiponitrile comprises the steps of adjusting the pH of the aqueous component of crude adiponitrile product obtainable by the dehydration of adipic acid in the presence of ammonia to from 7.0 to 10.0 at 25 DEG  C.; then separating the aqueous layer of the crude adiponitrile product from the oil layer thereof at 10 DEG  to 75 DEG  C. and removing water from the separated aqueous layer; contacting the residue so obtained with a dehydration catalyst in the presence of ammonia and recovering adiponitrile from the product.  If desired the oil layer may be washed with water or dilute ammonia and the extract so obtained added to the aqueous layer prior to the removal of water therefrom. Adiponitrile can also be recovered from the oil layer.  The crude adiponitrile product is preferably prepared by contacting a mixture of ammonia, in molar excess, and adipic acid with a dehydration catalyst at 300 DEG  to 550 DEG  C.; condensing the product so obtained and expelling ammonia from the condensate.
Patent GB-223642-A (GB)
Title: Improvements in and relating to apparatus for the selective reception of radiotelegraph and radio-telephone signals
IPC: H01Q1/14
Filed: 1923-07-23
Abstract: 223,642. Sharman, A. W. July 23,1923. Aerials; coupling aerial and detector circuits.- The total effective length of an aerial of the vertical loop type is not less than one-sixth of the wave-length of the signals to be received, and a condenser c is connected across the aerial down leads d, d<1>, which are connected through one or more resonant rejector circuits i, v to the receiving or detecting apparatus z. According to the Provisional Specification, the rejector circuits may be omitted.
Patent GB-238530-A (GB)
Title: Improvements in or relating to the gasification of liquid fuels
IPC: F02M25/022
Filed: 1925-07-24
Abstract: 238,530. Diaz, A. V. Aug. 16, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Vaporizers, external.-In the gasification of mineral and vegetable oils by heating, deposition of carbon is prevented by adding to the fuel during heating air and, if desired, water and steam. The gasifying chamber may be heated electrically, by a lamp, by red hot carbon, by the exhaust of the engine or by a combination of these means. The chamber is constructed with double walls between which the exhaust passes. Its interior is filled with carbon over which a small current of air is drawn by the engine suction.. The engine is started on a light fuel until the exhaust has raised the carbon to a red heat. The heavy fuel is then drawn through the chamber, being previously vaporized in a spiral tube. A thermal regulator may affect the change over from light to heavy fuel. Catalytic agents such as magnesia or catalytic copper may be used with the carbon.