baber/WOPTO huggingface dataset:
Patent GB-691847-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/44
Filed: 1951-11-13
Abstract: 691,847. Rontgen ray apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 13, 1951 [Nov. 21, 1950], No. 26515/51. Class 98 (i). [Also in Group XL (b)] In X-ray apparatus of the type in which a photographic film in a cassette is exposed to X-rays passing through the object under examination and in which exposure time is controlled by a photo-electric cell which receives light generated by the X-rays as they fall on a fluorescent screen, the photo-cell is prevented from responding to secondary X-rays diffused from the object and the cassette by means of a trap. As shown, a frame 9 consisting of two end sections opaque to X- rays and a central section which transmits them is slidably mounted on vertical pillars 6. The cassette can be moved from the end position to the central one for exposure. At the back of the frame is mounted an X-ray transparent plate 19 carrying a bearing 20 on which pivots a holder 22 (Fig. 8), carrying the secondary radiation traps 38, a fluorescent screen associated with the traps, a photo-electric multiplier tube and a light guide from the screen to the tube. This holder may be rotated to various angular positions by a linkage 28 coupled to a pointer 30 which cooperates with a scale indicating the part of the body under examination. A section of the body being X-rayed, and the cassette and photo-cell arrangement is shown in Fig. 8. Primary X-rays pass through the body 52, casing 10, cassette cover 45 of an X-ray pervious material (e.g. a phenolic condensation product), thin intensifying screen 47, film 48, thick intensifying screen 49, a felt cushion 50 and aluminium back 46. Radiation which has passed through the areas being examined then passes through the secondary radiation traps 38 (which remove rays produced by secondary emission), and then cause screens 40 to fluoresce. The light from these screens is collected by a pyramid 35 of light conducting material such as Lucite and directed on to the photo-multiplier tube 32. The pyramidal sides of the light collector are covered with a lead mask, the inside surface of which is covered with a light reflecting coating. The secondary radiation traps 38, (Figs. 8 and 9), consist of a spiral of continuous strips 42 of X-ray impervious material such as lead, the turns of the strip being spaced by X-ray pervious material 43 such as a phenolic condensation product or glass wool. The strip need not be continuous but it is positioned with its wide dimension parallel to the path of the X- rays. Thus, only rays parallel to the width of the strip pass through the trap. Secondary radiation, at an angle to the primary radiation is intercepted by the lead strips.
Patent GB-890983-A (GB)
Title: Improvements in or relating to refractory blocks
IPC: F23M5/06
Filed: 1960-07-29
Abstract: 890,983. Furnace roof bricks. OUGHTIBRIDGE SILICA FIREBRICK CO. Ltd. July 29, 1960 [Aug. 7, 1959], No. 26532/60. Class 51 (2). A metal-cased refractory brick 1 has a channel insert 4 with side flange extensions 6 bent over the top of the brick, and the web, which contacts the metal case on face of the brick, extended to form a hanger tab 7 bent over the flange extensions. The latter are offset downwardly by the width of the tab. In a modification, Fig. 4 (not shown), the extensions arise from side flanges and the web of a channel member forming part of the brick easing. The tab may be made of stainless steel welded to the web.
Patent GB-339246-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G27/00
Filed: 1929-09-02
Abstract: 339,246. Mavor &. Coulson, Ltd., and Mavor, J. B. Sept. 2, 1929. Jigging conveyers.-In jigging conveyers of the kind wherein oscillating driving gear is coupled to the trough through a connecting rod, a universal joint, preferably in the form of a trunnion block 11, is interposed between a bifurcation 8 on the oscillating driving lever 2 and a bifurcation 13 at the companion end of the connecting rod 14. The block 11 works on a pivot pin 10 which is received in either pair of two pairs of eyes 9 formed in the arms 8. Pivot bosses 12 formed on the block 11 are received by eyes in the forked end of the connecting rod. Rotation of the pin 10 is prevented by forming its head with a flat or flats which are engaged by a ledge or ledges 18 formed on the lever 2. Axial movement of the pin is prevented by a pin 19. A tapered overhanging fulcrum shaft end 4 is keyed to the upper end of the lever 2 and is prevented from axial movement by a retaining nut 6 and split pin 7.
Patent GB-482590-A (GB)
Title: Improvements in thimble or loop tube steam boilers and water heaters
IPC: F22B13/02
Filed: 1936-10-01
Abstract: 482,590. Water - tube steam boilers and water heaters- CLARKSON THIMBLE TUBE BOILER CO., Ltd., and FOUNTAIN, H. J. Oct. 1, 1936, No. 26687. [Class 123 (ii)] Vertical close - ended or loop tube boilers have an annular header 8 at one end of the water space feeding vertical branches 9 to which tubes 10 extending within some or all of the tubes 6 are connected to j jet water into the tubes. In another form, thimble tubes project outwardly into a surrounding gas passage from a cylindrical water heater, an annular header supplying branch mains and jetting tubes being located at the lower end of the water space as in the annular construction of boiler.
Patent GB-653420-A (GB)
Title: Improvements relating to windscreen wipers
Inventor: VICKERSON GEORGE ERNEST
IPC: B60S1/42
Filed: 1948-10-13
Abstract: 653,420. Windscreen cleaners. TRICOFOLBERTH, Ltd. Oct. 13, 1948, No. 26688. [Class 138(i)] A. means for attaching a windscreen wiper blade 1 to its actuating, arm 3 comprises a clip 5 which has a chamber 11 to receive the outer end 17 of the arm and is pivotally connected to the blade by means of a pin 7, or pins, which engages, or engage, in apertures in the clip and in ears 8 or the like upstanding from the back of the blade, in which clip is arranged a single spring 13 which bears both against the end 17 and also against the back of the blade for the purpose of holding the arm in engagement with the clip and of exerting a cushioning effect as the blade swings from side to side when the arm is oscillated. The ears 8 are struck from a member 6 having side flanges 28 riveted at 10 to the blade backing member 9, but may be struck from the backing member itself. The leaf spring 13 has terminal portions 14 which bear against the member 6 on the back of the blade. The pin 7 passes through holes 15 in the spring and is deformed at 16 where it engages in one of the apertures in the end walls 12 of the clip so that after being forced into the aperture it is held tightly therein. The end 17 of the arm is provided with a lug 20 which engages with a shoulder 22 at the end of a groove 21 formed in the convex wall 19 of the clip. Specifications 632,981 and 641,730 are referred to.
Patent GB-504254-A (GB)
Title: A rigid metal pit prop
IPC: E21D15/52
Filed: 1938-09-13
Abstract: 504,254. Pit-props. TOUSSAINT, H., and BOCHUMER EISENHUTTE HEINTZMANN & CO. Sept. 13, 1938, No. 26718. [Class 20 (ii)] A metal pit-prop comprises a flanged channel or troughsection bar a provided with a transverse sole-plate b at one end, and an inclined head-plate c at the other end to receive the wooden or metal positioning wedge g, or a supplementary packing plate k. The head-plate may be welded to the prop or provided with downturned projections which engage the prop and is recessed on its upper surface to form a guide for the wedge or packing plate ; it is also stiffened by a transverse rib d.
Patent GB-837914-A (GB)
Title: Electric motor control system
IPC: G05D3/14
Filed: 1956-08-31
Abstract: 837,914. Control of A.C. motors. STANDARD TELEPHONES & CABLES Ltd. Aug. 31, 1956 [Sept. 7, 1955], No. 26733/56. Class 38 (3). An induction motor having a control winding 29 and a reference winding 34 is controlled by means of D.C. signals derived from a source 1 which is connected through the secondary winding of a feed-back transformer 4 to the grid of a triode 6. This valve is arranged in an A.C. bridge circuit also comprising resistors 11, 14 and 15, the bridge being supplied from source 18 and having its output terminals connected to transformer winding 9. Thus, the phase and amplitude of the current in winding 9 are dependent upon the impedance of the triode 6, and this current is amplified in a push-pull amplifier and fed to the control winding of the motor. In order to prevent hunting, the motor drives an induction generator 37 with its rotor winding connected to the primary winding of the feed-back transformer 4, this feed-back voltage being effective to oppose the flow of current through the winding 9. The motor may be mechanically coupled to a reversible counter 33 for use in an aeroplane navigation system.
Patent GB-1412517-A (GB)
Title: Flame retardant acrylonitrile-butadiene-styrene polymeric composition
IPC: C08L55/02
Filed: 1973-06-05
Abstract: 1412517 Flame retardant compositions MICHIGAN CHEMICAL CORP 5 June 1973 [8 Feb 1973] 26869/73 Heading C3P The invention comprises a flame retardant acrylonitrile - butadiene - styrene composition which comprises, as flame retardant agent, a compound of formula wherein Z represents a bromine atom; A represents a chlorine atom; m is an integer of 1 to 5 ; m<SP>1</SP> is 0 or an integer of 1 to 4; i is 0,1 or 2; i<SP>1</SP> is an integer of 1 to 5, and T is a straight or branched chain alkylene or alkylidene group having from 1 to 6 carbon atoms. In general the compound is used in an amount of 1 to 25% by weight based on the total weight of the composition. Other flame retardant agents may also be incorporated into the composition and these include antimony, arsenic, bismuth, tin and zinc containing compounds.
Patent GB-1188793-A (GB)
Title: Improvements in or relating to Cargo-Ships incorporating Article-Storage Apparatus.
Inventor: INGRAM DAVID JOHN
IPC: B63B25/00
Filed: 1966-06-16
Abstract: 1,188,793. Storage apparatus. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 13 June, 1967 [16 June, 1966], No. 26976/66. Heading B8E. [Also in Division B7] A cargo ship incorporates an article storage apparatus for moving articles between a loading position beneath a hatch and storage positions on a deck in the ship's hold and spaced from the loading position, the apparatus comprising an article carrier member on which is movably supported a transfer member adapted to support the articles and transfer them between the carrier member and the storage positions. The hold is divided into superposed storage chambers S each having a hatch 3, the hatches being in alignment. Each deck has rails 4 on which runs a carrier member 5 having rails 6 for supporting a transfer member 7 which has a vertically movable frame 9 for supporting articles in the form of containers. At each side of the rails 4 are storage positions having rails 10 for receiving the member 7 and plinths 11 for supporting articles transferred thereto by the member 7. Containers may also be stored between the rails 4. Operation may be automatic or semi-automatic. In a second embodiment, Fig. 4 (not shown), each deck has two carrier members respectively associated with two transfer members, and being serviced through a common hatch. In a third embodiment, Fig. 5 (not shown), the carrier member is a turntable which may be formed as a lift to service superposed decks. Alternatively, each deck may have a turntable, the turntables being aligned and each, other than the lowest, being provided with an aperture which can be aligned with an upper hatch.
Patent GB-447655-A (GB)
Title: Improvements in or relating to machines for making tablets
IPC: B30B11/08
Filed: 1935-09-30
Abstract: 447,655. Moulding tablets in rotarymould - table machines. STOKES MACHINE CO., F. J., Olney, WESTIN, C. J., 1110, Kenwyn Street, and BECK, C. J., 4721, N. Camac Street, all in Philadelphia, U.S.A. Sept. 30,.1935, No. 26997. [Class 87 (ii)] A tablet-making machine comprises a pair of rolls 25, 26 with which punches 20, 21 coact to compress a tablet, one roll 26 being carried by a lever 57 pivoted to the machine frame 11 and connected to another pivoted lever 67 through a link 61, the lever 67 being associated with a spring 76 for yieldingly supporting the roll 26 in operative position. As shown, a rotary tablet-making machine has a table 13 with a central spindle on which is mounted a rotary head 15 formed of superimposed rings or discs with smaller rings between, these rings &c. being cut through to form bearings for a number of sets of the punches 20, 21 and seats for the moulds 22. The punches 20 co-operate with the mould through a cam track 23 and roll 25, and punches 21'through a cam track 54 and roll 26. The roll 25 rotates on a fixed shaft 80 and roll 26 in shaft 59 carried by lever 57. The link 61 can be adjusted in length by a hand wheel 61a. The spring 76, one end of which is attached to an eyebolt 78 secured to the frame 11, is enclosed in a casing 77 which supports the end 70 of lever 67. A scale 74 on the casing 77 co-operates with an indicator 75 on a block 73 attached to an eye-bolt 68 extending through end 70. The upper end of spring 76 is attached to the lower end of bolt 68 and on the threaded upper end of which screws a hand wheel 69, bearing on end 70, by which the tension of the spring can be adjusted. The plate 74 is adjustably mounted to provide for recalibration when the spring stretches. To prevent stressing the machine beyond its rated pressure, spacers 71 made in varying thicknesses are placed between the block 73 and the lever end 70 to stop the adjustment of bolt 68 when the maximum pressure is reached, this adjustment being checked and sufficient spacers removed to restore the pressure range when the indicator 74, 75 is recalibrated. To prevent the upper portion of the tablet breaking off, the upper punch 20 is kept on the tablet for a longer period by lifting it and the tablet out of the mould by means of the lower punch 21, the incline 55 leading up to cam 54 being at a more acute angle than that 53 of cam 23. To provide room for this without decreasing the range of adjustment of the roller 26, the point of incline 55 at the top of table 13 may, instead of being sharp as is nomal, be made the same thickness as the distance roll 26 extends above the table when set for the thickest tablet. A bridge 56 is provided to carry the punch to and from the roll in this low position.
Patent GB-1448981-A (GB)
Title: Fluorinated dioxan derivatives
IPC: C07D319/12
Filed: 1972-06-09
Abstract: 1448981 Inhalation anaesthetics IMPERIAL CHEMICAL INDUSTRIES Ltd 4 Sept 1973 [9 June 1972] 27007/72 Heading A5B Anaesthetic compositions for administration by inhalation comprise at least one hexafluoro- or heptafluoro-1, 4-dioxan derivative of the formula wherein one or two of R', R<2> and R<3> is or are hydrogen, two or one respectively of R<1>, R<2> and R<3> being fluorine, together with oxygen and optionally together with one or more other physiologically acceptable materials such as other inhalant anaesthetics e.g. halothane, nitrous oxide, ether, cyclopropane, trichloroethylene, enflurane, fluroxene, teflurane and 1-chloro-2, 2, 2-trifluoroethyl difluoromethyl ether; pharmaceutically-inert gases e.g. nitrogen, neon, argon, carbon dioxide and water vapour; and pharmaceutically acceptable stabilisers.
Patent GB-239740-A (GB)
Title: Improvements in or connected with cloth expanders or stretching machines
IPC: D06C3/06
Filed: 1924-11-13
Abstract: 239,740. Harrap, W. O., and Harrap, Wilkinson, Ltd. Nov. 13, 1924. Registering webs.-In a cloth expander, rotatable unit bobbins are mounted on a curved bar or support and are formed with cylindrical end compartments into which a ball or roller bearing is introduced, the balls being carried in a thin metal cage to allow them to engage the bobbin and bar, and means are provided for securing the bearing in place. The bobbins a axe in the form of hollow sleeves and are bored at each end to leave a ledge a<1>. The ball-bearing consists of a series of spaced balls c held in a circular skeleton spring device c<1> U-shaped in cross-section. The ball-bearing is adapted to be held in place by means of a split spring ring d sprung into a groove in the inner wall of the bobbin. The bobbins when mounted on the bar b may be covered with a sleeve e of rubber or other resilient material e vulcanized or otherwise fixed to a closely-coiled metal helix e<1>, the outer ends being closed by a ring g and a cap or ferrule g<1>.
Patent GB-722525-A (GB)
Title: Improvements in and relating to fasteners
IPC: B60J10/00
Filed: 1951-11-20
Abstract: 722,525. Stud-and-socket fasteners. FERNBERG, E. B., and FERNTOL PATENTS, Ltd. Oct. 24, 1952 [Nov. 20, 1951], No. 27263/51. Class 44. A fastener for securing together two members, one of which is formed with an aperture, comprises a single strip of spring metal having its grain running approximately longitudinally thereof, sheared through longitudinally over a portion of its length to form to longitudinal portions one of which is bent about parallel transverse lines to form a U-shaped snap engaging spring member 14 and the other of which 12 has its ends bent about transverse lines to form prongs 10, 11 directed out of the general plane of this portion on the side thereof opposite the spring member, the U-shaped spring member comprising two limbs 16, 17 which from the closed end of the U, are directed outwardly and then either inwardly or in parallel relationship and finally outwardly to form a pair of feet and the inwardly directed or parallel portions of the limbs diminishing in width from the outwardly directed portions towards the feet. The device is used for fastening a metal and fabric weatherstrip to a motor car door, the prongs 10, 11 passing through apertures in the metal backing being clenched inwardly into the covering fabric. The spring member 14 engages a circular aperture in the car door and has bevelled portions 21, 22 or a notch to prevent its easy withdrawal.
Patent GB-881554-A (GB)
Title: Improvements in or relating to indicating devices
Inventor: KITZ NORBERT
IPC: H03K29/00
Filed: 1959-08-11
Abstract: 881,554. Electronic counting-apparatus. BELL PUNCH CO. Ltd. July 25, 1960 [Aug. 11, 1959], No. 27433/59. Class 106 (1). An indicating arrangement for a multicathode counting tube comprises a multicathode indicating tube and means for connecting corresponding cathodes of the two tubes in which the potential of each cathode of the counting tube controls a trigger tube connected in circuit with the corresponding cathode of the indicating tube, means being provided for limiting the potential on the anode of each trigger tube. As described, a multi-cathode counting tube 1 has its cathodes connected over resistances such as 6, 7 to the grids of trigger tubes such as 8, 9, the anodes of which are connected to corresponding cathodes of an indicating tube 2. The cathodes of the tube 2 are connected also over resistors such as 12, 13 to a point intermediate two secondaries 17, 18 of a transformer whose primary is supplied from an A.C. source V8. The secondary 18 is connected over a rectifier 16 to the anode of the tube 2. Assuming that the glow in the counting tube 1 rests on the " 2 " cathode, current flows through the cathode resistor 5, and the potential developed at the grid of the trigger tube 9 causes it to fire as soon as the potential across it, which is the alternating potential developed at the winding 17, is sufficiently high. The arrangement is such that the tube 9 conducts during the positive half cycles of the winding 17 but is cut off for a part of each negative half cycle, the bias produced during conduction causing the glow in the tube 2 to invest the " 2 " cathode. The potential on the anode 32 of the tube 2 is modulated by virtue of the connection to the winding 18 synchronously with the voltage across the winding 17 thereby preventing incorrect discharge in the tube 2 during the negative half cycles in the winding 17. In a modification, Fig. 2 (not shown), the resistors 12, 13 &c. are replaced by diodes and in a further modification, Fig. 3 (not shown), by cold-cathode gas discharge tubes.
Patent GB-955773-A (GB)
Title: Improvements in or relating to soya for food
IPC: A23L11/30
Filed: 1962-07-17
Abstract: A method of treatment of soya with the object of improving its food qualities and the facility of use of the wholemeal flour of this product in the shape of flour having its natural fat content, stable, not fatty to the touch and easily dispersible, involves cooking the soya at a temperature not greater than 80 DEG  C. in an aqueous akaline suspension of pH between 8 and 9, followed by drying; it is stated that undesirable compounds (specified) are eliminated from the soya while the protein is preserved and destruction of the sulphur amino-acids avoided.  A 20% by weight suspension of the soya may, for example, be cooked for 20 minutes at 80 DEG  C.  When a preparation of proteolytic enzyme (specified) is added in a proportion of 0.1-0.5% to a 30-35% soya suspension before cooking, the cooking may be allowed to continue for a period exceeding an hour, taking into account the quantity of enzyme added; the addition of the enzyme renders the dried product more readily dispersible in water.  The cooked suspension is neutralised before drying.  Mono-glycerides, fatty sustances, skimmed milk and condiments may be added to the soya suspension before, during or after the cooking but before drying. According to an example, a 20% suspension of decorticated, finely ground soya in alkaline lye was adjusted to pH 9 by suitable proportions of lime and ammonia.  The adjusted alkaline suspension was then steam-heated by surface heating or injection to 80 DEG  C. for 20 minutes.  In drying the treated suspension ammonia was driven off so that the dried product was of pH 7.  This product was 99% free of its initial antitryspin content and entirely free from urease.
Patent GB-724048-A (GB)
Title: Method of alloying high carbon steel and copper
IPC: C21C7/00
Filed: 1952-10-31
Abstract: A method of alloying high-carbon steel and copper comprises liquifying the steel, adding an amount of pure copper at least equal to the amount of liquid steel together with relatively small amounts of blister copper and copper sulphate to the liquid steel and agitating the ingredients while they are in a liquid state. The steel, pure copper, blister copper and copper sulphate should preferably be 20-40 per cent, 40-60 per cent, 4-6 per cent and 13-18 per cent respectively of the final product.  In the example given, 6 parts by weight of high-carbon steel are melted in a crucible by heating to 2850-2870 DEG F., the temperature is reduced to 2500-2580 DEG F. and 10 parts of pure copper, 1 1/2 parts of blister copper and 3 parts of copper sulphate are added to the liquid steel.  The whole is agitated with a carbon element and, after thorough mixing, is poured.