baber/WOPTO huggingface dataset:
Patent GB-744584-A (GB)
Title: O-glycyl serines
Inventor: MOORE JAMES ALEXANDER
Filed: 1953-03-20
Abstract: The invention comprises mineral acid salts of O-glycyl-l- and dl-serine (of which mono- and di-acid series exist), and the preparation thereof by (a) treating N-glycyl-l- or -dl-serine with a mineral acid under substantially anhydrous conditions at 0-100 DEG C., or (b) reducing, in the presence of at least one equivalent of a mineral acid, a compound of the formula <FORM:0744584/IV(a)/1> (wherein R represents an azido, amino or carbobenzoxyamido group and R1 represents a benzyl group, which may be unsubstituted or substituted in the nucleus or the side chain or both).  Process (b) is preferably effected with gaseous hydrogen under pressure in the presence of a hydrogenation catalyst (e.g. a noble metal) in a solvent containing at least one equivalent of a mineral acid while keeping the pH below 5.5.  In examples: (1) N-glycyl-dl-serine is allowed to stand with 100 per cent sulphuric acid to produce O-glycyl-dl-serine disulphate, which may be converted into the monosulphate by dissolving it in water and adjusting the pH to about 5 with alkali; (2) N-glycyl-l-serine is similarly isomerized, the product is dissolved in water and the pH adjusted to 3.5 with barium hydroxide solution, producing O-glycyl-l-serine monosulphate; (3) a solution of N - carbobenzoxy - O - azidoacetyl - dl - serine in aqueous acetone containing hydrochloric acid is shaken with palladium black and hydrogen under 3 atmospheres pressure to form O-glycyl - dl - serine monohydrochloride; the monohydrobromide and monosulphate may be similarly prepared using the appropriate acids; (4) the palladium black in (3) is replaced by pre-reduced platinum oxide and the acetone by ethanol, the hydrogen pressure being 2-4 atmospheres; (5) and (6) N-carbobenzoxy-O-azidoacetyl-l-serine is reduced as in (3) except that the acetone is replaced by ethanol and the hydrogen pressure is 40-60 lbs./sq. in.; (7) the catalyst in (4) is replaced by palladium or barium sulphate, the hydrogen pressure being 30-50 lb./sq. in.; (8) the hydrogen pressure in (5) is altered to 3-4 atmospheres; (9) and (10) O - (N - carbobenzoxyglycyl) - N - carbobenzoxy-dl-and -l-serine are reduced as in (5), the hydrogen pressure being 30 lb./sq. in.; (11) and (12) an aqueous solution of O-glycyl-N-carbobenzoxy-dl-serine hydrochloride is shaken with palladium black and hydrogen under a pressure of 40-60 lb./sq. in.; (13) O-glycyl-N-carbobenzoxy-l-serine hydrochloride is similarly reduced.  Specifications 744,540, 744,585, 744,586, 744,587 and 744,588 are referred to.
Patent GB-444660-A (GB)
Title: Improvements in or relating to apparatus for the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/40
Filed: 1934-11-28
Abstract: 444,660. Electrical precipitation apparatus. LODGE - COTTRELL, Ltd., George Street, Parade, Birmingham-(Research Corporation of New York; 405, Lexington Avenue, New York, U.S.A.) Nov. 28, 1934, No. 34245. [Class 39 (i)] In apparatus for the electrical precipitation of suspended particles from gases, comprising complementary discharge and collecting electrodes maintained at a high potential difference, the discharge electrode system is supported wholly from one lateral edge thereof with the object of economizing treating space. The collecting electrodes 4, which may be in the form of plates or planar groups of spaced bars as described in Specification 362,290, [Group III], are hung by hooks 21 from the casing and guided by spaced projections 35. The discharge electrodes are in the form of wires 18 positioned by horizontal bars 17 projecting laterally from vertical bars 16 secured to a frame 15 suspended by rods 7 from insulated supports on the cover of the treating chamber. Preferably, the collecting electrodes are disposed in two parallel banks, and two sets of discharge electrodes are carried on opposite sides of a common frame 15. The collecting electrodes are connected singly or in groups to brackets 25 which coact with cams 26 to rap the electrodes against anvil plates 28. The backs 21 of the collecting electrodes have a reinforcing enlargement, and an aperture closed by a plate 38 is provided in the top of the chamber to allow access to and repair of the electrodes.
Patent GB-1139035-A (GB)
Title: A process of assembling a connector electrode to electronic, preferably semiconductor, components
IPC: H01L21/607
Filed: 1966-07-29
Abstract: 1,139,035. Welding by pressure. BROWN, BOVERI & CO. Ltd. 29 July, 1966 [31 July, 1965], No. 34268/66. Heading B3R. [Also in Division H1] As shown, an electrode 2 having an enlarged head 3 is ultrasonically welded to a semiconductor wafer 1 by means of a hollow sonotrode 4. The electrode 2 is produced by passing an aluminium wire through the sonotrode 4 and forming the head 3 by melting or by cold deformation. Wafer 1 may be of N-type or P- type silicon, the resulting contacts being rectifying or ohmic respectively. The electrode may be welded to or through a thin metal coating of, for example, nickel or gold on the wafer, or through a coat of protective paint.
Patent GB-1442453-A (GB)
Title: Tractors
IPC: E02F3/80
Filed: 1973-07-19
Abstract: 1442453 Vehicle frames CHELYABIN TRAKTORNY ZAVOD IM VI LENINA 19 July 1973 34527/73 Heading B7H [Also in Division E1] The frame of an endless track vehicle comprises upper and lower longitudinals 5, 6 at each side, the lower longitudinals being cross braced by members 10, 16, and side and end plates 7, 8, 19 being connected berween the longitudinals. The upper longitudinal 6 is situated at the topmost level of the principal components, engine, torque coverter and gearbox of the vehicle. Each longitudinal is of box section, one wall being formed by a side plate 7, and apertures are provided in the end plates and side plates for mounting attachments, such as bulldozers, scarifiers loaders or trailers, for hydraulic operating lines and for maintenance access. The rear ends of the longitudinals 5 and 6 respectively form housings 15, 17 for the tractor drive and oil storage. An operator's cab and a winch may be mounted at the upper side of the frame.
Patent GB-521904-A (GB)
Title: Bi-visual fluoroscope
IPC: G02B27/02
Filed: 1938-11-28
Abstract: 521,904. Fluorescent screens. MORLEY. L. R. W. Nov. 28, 1938, No. 34538. [Class 39 (i)] An apparatus for viewing X-ray images of two perpendicular planes without moving the object comprises a blackened chamber having at one end eyepieces A and at the other end two fluorescent screens S1, S2 arranged respectively in the top and end walls, together with a pivotally mounted mirror M which in the position shown reflects an image of the top screen to the eyepieces but can be turned down by a wheel K so as to expose the rear screen to view. The screens are covered with material C transparent to the rays.
Patent GB-1415447-A (GB)
Title: Well instrument positioning devices
IPC: G01V11/00
Filed: 1973-07-19
Abstract: 1415447 Wells &c DRESSER INDUSTRIES INC 19 July 1973 [25 July 1972] 34563/ 73 Heading E1F Apparatus for positioning a well instrument 10 in a well comprises an element 17 movably mounted on the well instrument, a movable arm 19 connected to the instrument means for linking one end 21 of the arm with the movable element 17 so that the arm is adapted to move with the element 17, and means 18 for applying a force to the movable element 17 tending to rotate the element relative to the well instrument. The movable element 17 is in the form of a ring, and the arm 19 is pivoted at 20 with its upper end 21 engaging in a notch 22 in the ring. A torque is applied to the ring 17 by means of a spring 18 and rotation of the ring is restrained by means of a pin 24 of a material which will dissipate when exposed to environmental conditions in the well. The pin 24 is preferably constructed of salt or dry ice. In an alternative embodiment, Fig. 3 (not shown), three arms (32, 33, 34) are circumferentially spaced around the instrument to centralize it in the well. The arms need not necessarily be restrained during insertion into the well, they may be allowed to slide along the wall of the well. The instruments referred to are for perforating or logging purposes.
Patent GB-195157-A (GB)
Title: Improvements in or relating to lock nuts
IPC: F16B39/36
Filed: 1921-12-23
Abstract: 195,157. Ogden, S. Dec. 23, 1921. Locking nuts.- A main nut 1 is provided with an extension 2 formed externally with lefthanded screw threads 3 over which a supplementary nut 5 is screwed, said supplementary nut having a conical hole which grips a conical split collar 4 screwed on the bolt x behind the main nut 1. The supplementary nut 5 may be further secured to the collar 4 by a pinching screw 7. If the bolt has left-handed screw threads, the supplementary nut is made with right-handed instead of left-handed threads.
Patent GB-169406-A (GB)
Title: Wagon tank construction
IPC: B61D5/06
Filed: 1920-12-08
Abstract: 169,406. Kramer, A. A. Dec. 8, 1920. Suspending and mounting bodies.-One end of a tank 2 is connected to the side rails 1, 1<1> of the chassis frame by an integral extension 5 of the end 3 bent at 6 to form a flange. The other end 4 is extended at 8 and is pivoted longitudinally at 16 to a cross-bar 14, springs 11, 12 abutting against seats 9<1>, 9 on the extension 8. This arrangement permits the frame to flex independently of the body.
Patent GB-189002-A (GB)
Title: Improvements in garters, braces, suspenders, belts and the like
IPC: A41F11/16
Filed: 1921-12-24
Abstract: 189,002. Heath, F. G. Dec. 24, 1921. Belts and garters; braces and straps and bands; sock-supenders.-In garters, braces, suspenders, belts &c. of the kind comprising in their length a coiled wire spring, the spring forms part of a closed extensible loop on the outside of the band portion. The Figure shows the invention applied to a sock suspender, comprising three inelastic portions 1, 2, 3 with fastening and adjusting means 4, 5 respectively. The part 1 is passed round a roller 8 on a slide 7 and carries at its end a plate 10 with hooks 12, which engage one end of the spring 9, the other end of which engages a similar attachment plate 11 secured to the part 1.
Patent GB-619120-A (GB)
Title: Improvements in book rests and the like
IPC: A47B19/10
Filed: 1946-11-22
Abstract: 619,120. Adjustable lamp supports. GRIFFIN, T. E. Nov. 22, 1946, No. 34735. [Class 75 (iii)] [Also in Group XIV] A lamp holder K and a reflector L are adjustably mounted over a book-rest, being carried on a rod I slidably mounted in a collar H at the top of a panel A, the rod I being set by a spring clip M. Telescopic legs S. S<1> permit the device to be used as a reading stand.
Patent GB-904807-A (GB)
Title: A method of melting glass
IPC: C03B5/12
Filed: 1960-10-11
Abstract: 904,807. Glass manufacture. PALMER, D. M. Oct. 11, 1960, No. 34834/60. Class 56. [Also in Group XII] Pellets containing glass-making ingredients gravitate through a zone where they are preheated, to a temperature below that at which they soften, by gases rising from a melting zone underneath and then fall into the melting zone where they meet successive blasts of hot gas at different levels, directed in different horizontal directions. In the apparatus shown, pellets prepared by the centrifugal spray drying process of U.S.A. Specification 2,062,907 are fed through a pipe 14 into a pre-heating chamber 10 where they are supported by annuli 17 mounted on a spider 16. The pellets fall between the annuli into a water-jacketed funnel 13, the feed from which is controlled by a valve member 20 adjustable by rack-and-pinion mechanisms 30, 31. The member 20 comprises two concentric tubes 21, of nickel-chromium alloy, and 27, of refractory material, fitting together at the bottom and having overlapping flanges 22, 28 with registering holes at the top. Cooling air is fed through a flexible connection 35 to the space between the tubes to emerge through the holes in the flanges. From the valve 20 the pellets fall into the melting zone enclosed by refractory blocks 54 inside insulating material 53 and a water jacket 48. The pellets meet blasts of gas from burners 59, 60, 61, which are mounted in alternately-disposed oblique directions to produce turbulence in alternating directions. Molten glass collects in the lining 55 of titanium, molybdenum, zirconium or tungsten with silver or copper binder. The glass discharges through a spout 56 with high-frequency heating coil 58. Hot gas from the melting zone passes up through the valve 20 and either through the pipe 38, with valve 39, or up through the pellets on the annuli 17, preheating them, to emerge through the pipe 40. A safety head 42 and inspection device 15 are provided.
Patent GB-912676-A (GB)
Title: Electric cycle lamps
Inventor: WHITNEY GEORGE JOSEPH
IPC: F21S8/10
Filed: 1960-10-12
Abstract: 912,676. Electric lamps for cycles. LUCAS (INDUSTRIES) Ltd., JOSEPH. Sept. 29, 1961 [Oct. 12, 1960], No. 34895/60. Classes 75 (3) and 71 (4). The holder 3 for the bulb 4 in a cycle lamp has an integral portion 7 extending through an aperture in the lamp housing 1 so as to project therefrom and for a bracket or part of a bracket for securing the lamp to a cycle. The housing 1 may be of rubber or like flexible material and provided with a peripheral groove to receive the edge of a translucent cover 2. The base of the housing has a recess enclosing a contact piece 9 for the base contact of the bulb. A reflector 11 may be provided.
Patent GB-857385-A (GB)
Title: Improvements in the preparation or persulphates
IPC: C01B15/08
Filed: 1958-10-31
Abstract: <PICT:0857385/III/1> Alkali metal and alkaline earth metal persulphates are obtained by the reaction in aqueous solution of ammonium persulphate and a hydroxide or water-soluble carbonate of the metal, in which the reactants are mixed in substantially stoichiometric proportions at a temperature of 0 DEG C. to 45 DEG C. and a pressure of 5 to 90 mm. Hg. absolute.  The solutions may be substantially saturated, and the pH is preferably not below 4.5, and is preferably alkaline. Suitable starting hydroxides are those of sodium, potassium barium lithium, strontium, rubidium and caesium, and as starting carbonates those of sodium, potassium, rubidium and caesium.  The persulphate product may be recovered as a solid by crystallisation.  In a continuous process employing the apparatus of Fig. 2, to start up, an aqueous ammonium persulphate solution was introduced into tank 14, and circulated through line 32 by pump 36. An aqueous sodium hydroxide solution was added, and the temperature was maintained at about 15 DEG C. by steam heater 36, and the pressure at about 7 mm. mercury by vacuum pump 18.  Aqueous ammonium persulphate and sodium hydroxide solutions were now continuously fed to tank 14 via line 32 from tanks 10 and 12 respectively, and the rate of circulation of the solution through line 32 was maintained at at least 20 times the rate of addition of persulphate and hydroxide. Water vapour and ammonia released were evacuated via line 40, and a slurry of sodium persulphate was withdrawn via line 38 to tank 22, where the mother liquor was centrifugally separated and returned to tank 14.
Patent GB-302651-A (GB)
Title: Improvements in apparatus for heating billets and the like
IPC: C21D9/70
Filed: 1928-11-27
Abstract: 302,651. Dreffein, H. A. Dec. 19, 1927, [Convention date]. Metal-heating furnaces; emission of hot gases, preventing.-In a furnace for heating billets in which combustion of gas and air is effected out of direct contact with the billets, the products of combustion are diverted towards the billets by a wall opposed to the flame, and a, part of the products is then returned for recirculation with the flame. In the furnace shown, in which the billets A are fed along a track 23 from a charging opening 17<a> to a discharging incline 23<a>, the roof is stepped to form a spacious combustion chamber 45 where the main heating of the billets is effected and a more restricted channel 53 through which the products of combustion pass on their way to the stack flue 61, and in which the billets receive a preliminary heating. Gas is supplied through a flue 35 and preheated air through damper-controlled pipes 37, the mixture passing into the chamber 45 through ports 31 lined with refractory material and distributed over the width of the furnace. The flame is deflected downwards by the wall 16 and part of the gases is returned to the burner end of the combustion chamber by air jets 55. The billet tracks 23 are carried by spaced walls 20, and circulation of the heating gases beneath the billets is facilitated by the provision of recesses 66 and 21<a> in the side walls and end block 21 respectively, and of transverse passages 67, 65 in the walls 20. Air is supplied to the spaces beneath the billets, and for preventing emission of gases at the charging end of the furnace, through nozzles 24 and 58 respectively. The mixture supplied through the ports 31 contains gas in excess, and combustion is completed by the air supplied through the nozzles. 24, 55, 58.
Patent GB-1094703-A (GB)
Title: Improvements in or relating to welding
Inventor: WRIGHT ROBERT JAMES
IPC: H01B9/00
Filed: 1963-09-04
Abstract: 1,094,703. Welding by fusion. LINCOLN ELECTRIC CO. Ltd. and A. J. SEVENCO. Aug. 31, 1964 [Sept. 4, 1963], No. 35000/63. Heading B3R. [Also in Divisions F2 and H1] A flexible welding cable comprises a tube 1 through which electrode wire is fed, a co-axial conducting sleeve 3, e.g., of braided copper, for carrying welding current and insulated from the tube 1 and an outer insulating covering 4, e.g., of neoprene. Shielding gas, e.g. carbon dioxide, is passed through a coaxial metal tube 2 intermediate the tube 1 and the sleeve 3. The tubes 1, 2 are covered with an insulating plastic. A control lead 5 is located within the covering 4. The cable terminates at one end at a fitting 31 having a plug 85 receiving the welding current and the electrode and a gas inlet 84. At the other end the cable is connected electrically and mechanically by a nut 67 to the body 54 of a welding torch 30. A curved welding nozzle having a current conducting tube 50 supplying current to a contact tube 57, an insulating covering 52 and an inner guide tube 55 is secured to the body 54. An insulating sleeve 59 supports a gas nozzle 58. The control lead 5 is connected to a switch 69. In a modification, the tube 2 is dispensed with and shielding gas passes between the tube 1 and the sleeve 3.
Patent GB-1428974-A (GB)
Title: Production of abs dompositions
IPC: C08L55/02
Filed: 1972-07-27
Abstract: 1428974 Block copolymer-ABS blends BP CHEMICALS INTERNATIONAL Ltd 1 June 1973 [27 July 1972] 35095/72 Headings C3P and C3G Compositions are obtained by blending (1) an acrylonitrile - butadiene - styrene terpolymer, prepared by suspension polymerization of styrene and acrylonitrile in the presence of a butadiene or butadiene-styrene rubber, (2) a polystyrene - polybutadiene - polystyrene block copolymer in amounts of up to 50% of the blend and, optionally, (3) a styrene-acrylonitrile copolymer.
Patent GB-773864-A (GB)
Title: Process for the manufacture of the 15,15-cis betacarotene
Filed: 1955-12-07
Abstract: 15,15-Cis-b -carotene is obtained by catalytically hydrogenating a suspension of 15,151-dehydro-b  -carotene in an inert organic liquid, e.g. saturated hydrocarbons such as pentanes, hexanes and cyclohexane, or petroleum ether.  In an example, 15,151-dehydro-b -carotene is suspended in petroleum ether and hydrogenated employing palladium/calcium carbonate partially inactivated by lead as catalyst.
Patent GB-845434-A (GB)
Title: Improvements in and relating to lightning arrestors
IPC: H01T1/04
Filed: 1956-11-16
Abstract: 845,434. Lightning arresters. GENERAL ELECTRIC CO. Nov. 16, 1956 [Nov. 18, 1955], No. 35118/56. Class 38 (4). A lightning arrester comprises a plurality of air-spaced insulated magnetic plates 6 having slots 7 arranged to be partly divergent so that an arc formed between pairs of arc horns 8 mounted in the slots will be magnetically forced into the divergent portions to follow a sinuous path so that it is lengthened and cooled. The plates 6 are formed into a stack 1, Fig. 1, one or more stacks being mounted between non- linear resistance blocks 2 in a housing 3, flashover between adjacent units being prevented by a glass fibre gauze 14. The plate insulating material may be asbestos, mica flake, glass composition or refractory material, and the slots may all be of the same configuration, with alternate divergent portions reversed, or alternate plates may have straight slots. Specification 698,583 is referred to.
Patent GB-191059-A (GB)
Title: Improvements in mechanical transmission for synchronizing talking and cinematograph machines
IPC: G03B31/00
Filed: 1922-12-28
Abstract: 191,059. Zeppieri, E. Dec. 28, 1922. Crank linkages.-In means for synchronizing widely separated kinematographs and phonographs, the machines are driven by cranks 3, 3a with three or more throws, the cranks being interconnected by cords or the like 5, 5a, 5b passing around the kinematograph hall over guide pulleys. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is applicable for connecting apparatus generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-1130238-A (GB)
Title: Improvements in tying of thread ends for stator windings and the like
Inventor: EBERT DIETER
IPC: H02K15/00
Filed: 1966-08-06
Abstract: 1,130,238. Covering cores by winding. ELEKTROMAT KARL - MARXSTRASSE, VEB. 6 Aug., 1966, No. 35292/66. Heading B8G. A method for mechanically tying together two thread ends during the mechanical binding of stator windings, and in which the binding is performed by an upper thread that is carried by a needle oscillating first vertically on one side of a coil, then traversing horizontally across the coil, then oscillating vertically on the other side of the coil, and so on; the thread from said needle co-operating with a reciprocating thread catcher below the windings and causing the upper thread, each time it is moved downwardly, to be linked with a lower thread drawn from a revolving shuttle; characterized in that in order to knot the upper and lower threads together at the start and finish of the binding operation the horizontal traversing of the needle is stopped but its vertical oscillations are continued in such a manner that the two threads are drawn into a knot each time the needle descends.
Patent GB-820920-A (GB)
Title: Improvements in or relating to film guiding and advancing devices for optical projection apparatus
IPC: G03B23/12
Filed: 1957-11-13
Abstract: 820,920. Optical projection apparatus. LEITZ G.m.b.H., E. Nov. 13, 1957 [Nov. 27, 1956], No. 35340/57. Class 97(1) A film guiding and advancing device for an optical projector comprises a gate having two pressure plates of which one is carried by a frame supporting film spool spindles and pivotable against a spring by spocl rotating knobs on the spindles, at least one spool having recesses engageable by one end of a lever of which the other end contacts a fixed part of the gate. By pivoting the frame the lever is released from a recess in the spool and the film can be wound on. As shown, a U- shaped film gate 1 carries a fixed pressure plate 2 and a frame 4, which carries a pressure plate 5 and is pivotable about a rod 3 under control of springs which ensure that the plates 2, 5 are normally in closed position. On each side of frame 4 projecting part 4a carries film spools 7 and knobs 10 on spindles 6 and projecting part 4b carries a pivoted locking lever 9. Each lever 9 is pressed by spring 12 on frame 4 so that end 9b thereof contacts one limb of the gate 1 and, with a film sandwiched between plates 2, 5, the end 9a engages a recess 11 in each spool 7. By pressing on one knob 10, the frame 4 is pivoted against its closure springs and levers 9 are rocked out of the recesses 11. whereby the film can be wound on. A catch 13a, 13b may hold the frame 4 in its open position.