baber/WOPTO huggingface dataset:
Patent GB-414025-A (GB)
Title: Improvements in or relating to the grignard synthesis
IPC: C07F3/02
Filed: 1932-10-18
Abstract: In the Grignard synthesis of organic compounds, thioethers are used in lieu of anydrous ether as the solvent employed. Preferably the thioethers are those which can be prepared from the mercaptans occurring in petroleum oils.  Thus, sour light naphthas are extracted with aqueous caustic soda, the resulting mercaptides converted by steam distillation into mercaptans, which are then passed at elevated temperature over such catalysts as cadmium sulphide or iron sulphide; the product comprises a mixture of thioethers, e.g. methyl, ethyl, propyl, butyl and mixed compounds, and can be used as such or after distillation into fractions; if desired, the mercaptans can be fractionated prior to their conversion into thioethers.  The preferred boiling-point range for the solvents is 30--150 DEG  C., but special fractions, e.g. 30--80 DEG  C. and 50--100 DEG  C. may be used.  Reference is made to the use of the thioethers in the preparation both of the Grignard compounds themselves, i.e. magnesium alkyl or aryl chlorides, bromides or iodides, and of hydrocarbons, olefines, primary, secondary and tertiary alcohols, aldehydes, ketones and carboxylic acids obtained by their aid.  According to the examples: (1) magnesium is reacted with an alkyl bromide dissolved in a thioether and the product treated with an alkyl iodide to form a high molecular weight hydrocarbon; (2) a ketone or acid halide is added to a solution of an alkyl magnesium iodide in a thioether; on hydrolysis with water an olefinic hydrocarbon is obtained; (3) a stream of anhydrous carbon dioxide is passed through a solution of an alkyl magnesium iodide in a thioether and the product is hydrolysed with water giving an alkyl carboxylic acid.
Patent GB-686489-A (GB)
Title: Improvements in or relating to triple action sheet metal drawing presses
IPC: B21D24/12
Filed: 1950-11-29
Abstract: 686,489. Cupping. SCHULER AKT.-GES., L. Nov. 29, 1950 [July 7, 1950], No. 29195/50. Class 83 (iv). A cupping press comprises an upper ram and work-holder driven from below by crank-shafts situated at the ends of the press so as to leave a centre-space and being coupled together by a shaft disposed to one side of said centre space and a lower ram mounted in the centre space and controlled in dependence on the upper ram and work-holder. The upper ram 3 and the work-clamping ring 6 are operated through connecting rods 5, 8, respectively, one being connected at each corner through strokeadjusting means 4, 7. The lower ends of the rods 5 are mounted in the cranks 10 of relatively short shafts 11, the inside webs 12 of the cranks being recessed into the surfaces of driving gear-wheels 13 which are rotated from a common motor 14 through a belt drive 15 and gearing. As shown in Fig. 1, the motor 14 is at the right-hand end of the press and the drive for the shafts 11 at the left-hand end is transmitted by a shaft 21 positioned along one side of the press. The rods 8 are operated from other cranks on the shafts 11 through a slide 34 mounted in guides 32, 33 and levers 40, 41 which rock about journals 42. The mounting of the shafts 11 and shaft 21 away from the centre of the press leaves room for a lower ram 44 operated by eccentrics on shafts 48 arranged at right angles to the shafts 11 and driven from a motor 49 through a belt drive and gearing.
Patent GB-480809-A (GB)
Title: Improvements in staples for use with locks and latches
IPC: E05B15/02
Filed: 1936-10-28
Abstract: 480,809. Staple for latches &c. J.P. & SONS (HOLDINGS), Ltd., (in Liquidation), BUTTER, F. J., and FRYER, E. C. Oct. 28, 1936, No. 29232. [Class 44] A sheet-metal staple A consisting of an outer or face wall B and top and bottom walls D has lugs E, with holes e for securing screws, bent in towards one another from the top and bottom walls. These lugs E may be raised where the holes are located in order to present surfaces normal to the axes of the screws. In a modification, the lugs E are flat and the screws inserted through holes in the wall B.
Patent GB-287016-A (GB)
Title: Improvements in ore or like mixing machines
IPC: C22B3/02
Filed: 1927-11-02
Abstract: 287,016. Eriksson, H. Nov. 2, 1927. No Patent granted (Sealing fee not paid). Continuous-discharge apparatus with moving containers. - A mixing - machine, preferably worked continuously, and particularly for mixing ore concentrate with coal or coke breeze, comprises a rotating drum 1, provided with cross bars 15 which are alternately arranged with respect to radial arms 14 carried by a fixed shaft 13. As shown, the drum is driven by a pulley 8 and bevel gearing 6 transmitting motion to a toothed ring 2 running on ball bearings on a guideway 5.
Patent GB-464980-A (GB)
Title: Protective aerated garments against poisonous liquids and gasses
IPC: A62B17/00
Filed: 1935-10-24
Abstract: 464,980. Gas - protection garments; respiratory apparatus. GORDON, C. J. Oct. 24,1935, No. 29319. [Class 81 (ii)] [Also in Group VII] A garment for wear in poisonous atmospheres comprises a one-piece suit 1, for example of oil- or rubbertreated twill, provided with an elastic rubber yoke around the neck and shoulders through which the suit is put on, or, as shown, slit and overlapped from neck to shoulders and provided with fasteners 4, the slit edges being preferably connected by gusset pieces. The suit is supplied with decontaminated air as by a compressible bulb 8 held beneath the arm or in other convenient position and connected by pipes 9, 10, including non-return valves, with the suit and with a filter element 11 worn in a pocket on the chest, back, or hip. The filter element may comprise a pad of flexible material having a metal valve and valve seating. A mask or hood 12, such as that described in Specification 442,224, has a skirt 13 tucked into the neck of the suit and a blow-off valve 14 for release of excess air; which may also leak past elastic bands 6, 7, at wrists and ankles. An internal pocket in the suit may contain silica gel, calcium chloride or other desiccating substance enclosed in a bag or perforated canister. According to the Provisional Specification a reserve air supply may be provided by making the upper portion of the suit of double material and the reserve air may be conveyed to the mask by flexible tubes having hand-operated valves ; the bulb 8 may be placed near the hip and may be compressed automatically during walking by mechanism including a splint or lever embodied in the leg seam.
Patent GB-508199-A (GB)
Title: Improvements in rotary engines
IPC: F01C21/08
Filed: 1937-10-27
Abstract: 508,199. Rotary engines. JOHNSON, H. G., and LONSDALE. C. J. G. Oct. 27, 1937, No. 29329. [Class 110 (ii)] Sliding vanes 4 in slots 5 of a rotor 2, have their tips curved so that the point of minimum clearance between a vane tip and the bore of the casing 1 is maintained constant but moves between the points A, B during one revolution of the rotor. Lateral pins 6 on the vanes support bearings 7 which run on the inner rings 8 of bearings 9 to prevent the vane tips rubbing against the casing bore under centrifugal action. Slippers may be used in place of the bearings 7. Slots may be cut in the tips and sides of the vanes. The Provisional Specification states that the vanes may be hollow and cooled internally, and that two or more engines may be compounded.
Patent GB-1189554-A (GB)
Title: Control System for a Tire Grinding Machine.
IPC: B23Q15/00
Filed: 1968-06-20
Abstract: 1,189,554. Grinding tyres. GOODYEAR TIRE & RUBBER CO. 20 June, 1968 [31 July, 1967], No. 29446/68. Heading B3D. [Also in Divisions B7 and G1] In a tyre grinding machine, a force transducer 15 generates an electric signal in response to force variations as an inflated tyre 1 is rotated about its axis, and a memory and comparator circuit 19 stores a signal corresponding to the lowest force measured during a complete revolution of the tyre and generates a grind signal if the instantaneous value of the force signal exceeds the stored signal by more than a predetermined amount. The output signal from the comparator is stepped through a shift register 21 by pulses generated by a tachometer 26 and fed to a servo system to move a grinding wheel 5 into and out of contact with the tyre as required, the time delay imposed by the shift register being equal to the time for a quarter revolution of the tyre. Two systems may be provided, one for each shoulder of the tyre.
Patent GB-154447-A (GB)
Title: Improvements in and relating to catamenial bandages
IPC: A61F13/64
Filed: 1919-11-26
Abstract: 154,447. Trumbo, S. D. Nov. 26, 1919. Catamenial appliances. - A support for an absorbent pad consists of a bag formed of a single piece having an elongated octagonal shape, the front and back portions being folded upwards and connected to a body belt and the side members being also folded upwards to rest against the inside of the thighs, to which they are bound by tapes. The smallest sides 2, 3 of the sheet of material, which is of impervious stuff, are buttoned to depending straps 12 of a body belt 10, 11. The side members 6 are folded upwards to rest against the thighs and are secured by tapes 7. The parts of the belt are buckled together at 14, 15.
Patent GB-335377-A (GB)
Title: Improvements in or relating to collecting boxes for leaflets, pamphlets and other papers
IPC: A47G29/12
Filed: 1929-09-30
Abstract: 335,377. Siegel, C. I. Sept. 30, 1929. Collecting-boxes.-A collecting box for leaflets, &c., comprising a back plate for attachment to a wall and a box portion with two separate compartments, has the box portion hinged at 16 to the back plate 12 with a lock 27 or other fastening means at the upper edge. The upper compartment is normally closed except for a slot 26 or the like while the other compartment 21 is open at the side remote from the back plate and is provided with a spring member 22 to bear on a pile of blank forms therein. The back plate is screwed to the wall, is flanged and provided with vertical angle pieces 14 on its front side, and is made by pressing from sheet metal. Two springs 22 may be provided, and a frame 28 to contain instructions, &c. may be mounted on the box.
Patent GB-1109156-A (GB)
Title: Improved methods for producing granular fertilisers containing urea
Inventor: YEOMANS PETER WILLIAM
IPC: B01J2/12
Filed: 1964-07-23
Abstract: 1,109,156. Granulating apparatus. EDWARD WEBB & SONS (STOURBRIDGE) Ltd., and ANDERTON RICHARDSON FERTILISERS Ltd. 6 July, 1965 [23 July, 1964], No. 29645/64. Heading B5A. In a process for producing granulated fertilizers containing urea the fertilizer mixture is subjected to the direct application of a flame while it is agitated, e.g. in a rotary drum. Liquid, slurry or steam may be added to the mixture during or before granulation.
Patent GB-1105437-A (GB)
Title: Polyimides and method of making same
IPC: C08G18/00
Filed: 1966-07-01
Abstract: Polyimides may be produced by reacting a diisocyanate of formula O=C=N-R-N=C=O where R is an organic radical of at least 2 carbon atoms with an equimolar proportion of a compound containing 2 pairs of carboxyl groups linked to carbon atoms in the same organic radical, the carboxyl groups of each pair being separated by no more than 3 carbon atoms, or an imide-forming derivative thereof. The tetravalent organic radical should contain at least 2 carbon atoms. Diisocyanates specified include hexamethylene diisocyanate, dodecamethylene diisocyanate, diphenyl methane - 4,41 - diisocyanate, diphenyl ether - 4,41 - diisocyanate, toluylene diisocyanate, 2-phenyl-benzoxazole - 5,41 - diisocyanate and 1,1 - diphenyl cyclohexane - 41,411 - diisocyanate. Tetracarboxylic compounds specified include: pyromellitic, cyclopentadiene, tetracarboxylic, benzophenone - 3,31,4,41 - tetracarboxylic, diphenyloxadiazole - 1,3,4 - 3,31,4,41 - tetracarboxylic, naphthalene - 1,4,5,8 - tetracarboxylic and diphenyl ether - 3,31,4,41 - tetracarboxylic acids, dianhydrides thereof and mixtures of acids and anhydrides. The reaction takes place in a solvent, e.g. dimethyl acetamide, N-methylpyrrolidone, dimethyl sulphoxide or dimethyl formamide at atmospheric or reduced pressure.  In an example, N-methyl pyrrolidone is mixed with acetone as solvent.  The reaction temperature may be 50-350 DEG  C. and the reactants may be in a thin layer.  A cross-linked polyimide may be produced by replacing part of the diisocyanate with an equivalent quantity of an isocyanate of functionality greater than 2. Suitable compounds include triphenylmethane-4,41,411 - triisocyanate, diphenylether - 2,4,41-triisocyanate, triphenylphosphate - 4,41,411 - triisocyanate and polyphenylene polymethylene polyisocyanate.  The polyimide may be obtained by evaporating the solvent or by adding a non-solvent, e.g. benzene. The products may be made into films.  In a particular embodiment the polyimide is prepared at below 80 DEG  C. and has a molecular weight of 1000-10,000.  This reactive polyimide may be stabilized by blocking the end-groups, e.g. with caprolactone or phenol for isocyanate groups.  It may later be heated above 100 DEG C., optionally in the presence of further dianhydride or isocyanate to give a higher molecular weight polyimide.
Patent GB-1178527-A (GB)
Title: Vehicle Safety Apparatus
Inventor: POCIASK FREDRICK
IPC: B60R21/268
Filed: 1968-06-21
Abstract: 1178527 Protecting guards EATON YALE & TOWN Inc 21 June 1968 [21 June 1967] 29841/68 Index F4P 1A1X P1B2A A crash-restraint bag connected to the diffuser 20 is inflated from gas compressed in the reservoir 12 in the event of a collision to prevent displacement of a vehicle's occupants. The gas is retained in the reservoir 12 by a valve 32 in the interconnecting bore 27 and the valve is retained in position by a two-part detent 34a, 34b. Movement of the detent to free the valve 30 is effected by hydraulic fluid in containers 66 positioned at the corner of the vehicle which fluid is displaced when a container is crushed on impact, the valve 30 being blown into the diffuser 20. The detent may be actuated by an explosive charge fired electrically or the valve itself may have one wall located by a ring freed by hydraulic pressure.
Patent GB-675356-A (GB)
Title: Improvements in and relating to cable sheaths
IPC: H01B7/20
Filed: 1950-12-07
Abstract: A lead-base alloy suitable for cable sheathings, especially of fluid filled cables, consists of 0.01-0.4 Te, 0.05-0.5 As, 0.05-1.0 Sn, all in percentages, balance lead with the usual impurities.
Patent GB-425880-A (GB)
Title: Improvements in superheterodyne receivers for wireless reception
IPC: H03F1/08
Filed: 1934-10-19
Abstract: 425,880. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Oct. 19, 1934, No. 29997. Convention date, Dec. 4, 1933. [Class 40 (v)] The grid of the local oscillator 7 of a superheterodyne receiver is connected to an intermediate point 8 on the grid leak resistance 9, a condenser 11 across the upper part of the resistance having such a value that the phase angle of the impedance between the grid and the point 10 corresponds to that of the impedance between grid and cathode. By this means, the effect of variation in gridcathode capacity of the oscillator valve (due to valve replacement) on the oscillator frequency is minimized.
Patent GB-1361949-A (GB)
Title: Magnetic film planar structure
IPC: C09D5/23
Filed: 1972-06-27
Abstract: 1361949 Vapour depositing magnetic layers MI GRISHECHKIN and TF MARTYNENKO 27 June 1972 [17 Aug 1971] 30103/72 Heading C7F A substrate carries an amorphous layer which in turn carries a magnetic film, the magnetic film being in contact with the amorphous layer, the magnetic film containing a discontinuous layer of non-magnetic material consisting of discrete inclusions in the film, the surface of the amorphous layer in contact with the magnetic film having a surface roughness with a period which is of the same order of magnitude as the width of the interdomain boundaries of the magnetic film, the discrete inclusions corresponding to depressions in the surface. Additionally there may be provided a metallic layer between the substrate and the amorphous layer, the surface of the metal in contact with the amorphous layer having a surface roughness not dissimilar from that of the amorphous layer. The substrate is preferably made of an alloy consisting of 98À6% Al, 1À4% Mn, the magnetic material may be a Ni, Fe, Co alloy, the discrete inclusions of Cu, the amorphous layer SiO and the metallic layer Al. The layers and film may be fabricated by vacuum deposition techniques.
Patent GB-675641-A (GB)
Title: Improvements in or relating to feed arrangements for threshing machines
IPC: A01F12/14
Filed: 1950-12-09
Abstract: 675,641. Thrashing machines. CHRISTENSEN, P. Dec. 9, 1950. No. 30171/50. Class 58 In a feed arrangement for threshing machines of the kind consisting of a cylinder 1 with spikes, knives or similar cutting and conveying members which co-operate With a pivotable shoot 5 which is pressed against the cylinder and a stop by a spring 7, and having at its free end a grate-like blocking member 9, which can be pusher against and away from the cylinder 1, the cylinder is provided with a number of ribs 3 which may be formed as saw-toothed knives which lie parallel to the axis of the cylinder or spirally and which serve as carrying members and the shoot has a number of openings 10 through which the teeth of the blocking member pass so that the shoot can move freely over the blocking member.
Patent GB-263772-A (GB)
Title: Improvements in fuel pump for oil engines
IPC: F02M59/02
Filed: 1926-11-30
Abstract: 263,772. Acro Akt.-Ges. Jan. 2, 1926, [Convention date]. Cam-actuated pumps; regulating delivery by return circuits and by closing suction valves; valve-gear.-In a fuel pump part of the fuel delivered through the valve 11 is returned to the suction side through a passage 21, a reduced portion 18 of the plunger 5, and a passage 19 opening into the inlet port 17. An inclined edge 20 on the plunger controls the time at which the passage 21 opens into the space 18, and this time may be varied by rotating the plunger by means of a lever 23 and sleeve 24 engaging a pin 26 on the plunger. An inclined edge 22 on the plunger controls the time at which delivery begins by closing the port 17, and this time also is varied by rotating the plunger. The plunger engages the stem of the valve 11 at the end of the stroke to ensure complete delivery. The actuating cam 4 is shaped to prolong the motion stroke for a short time after the edge 22 has opened the port 17. One or both of the controlling edges 20, 22 may be arranged on the cylinder 9 or on an intermediate bushing.
Patent GB-392079-A (GB)
Title: Improvements in or relating to automatic telephone stations
IPC: H04M17/02
Filed: 1932-10-28
Abstract: 392,079. Automatic exchange systems. TELEPHON-APPARAT-FABRIK E. ZWEITUSCH & CO., GES., 6, Salzufer, Charlottenburg, Berlin. 'Oct. 28, 1932, No. 30318. Convention date, Dec. 5, 1931. [Class 40 (iv).] In a system in which certain calls (1st digits 01 .. 07) are free and others (1st digits 08 .. 00) are barred to coin-box substations, a relay Sp which cuts off the telephone set and dial and may prevent the refund of the coin is energized by contact a if a barred number is dialled, by contact mf if an ordinary number is dialled without inserting a coin, by an inertia-controlled contact t if the return of the dial is interfered with and by contact 3HU of the hook switch if an attempt is made to dial with the latter. The relay is not released until the receiver has been restored and the switches have been released, being held over a highresistance winding Sp(ii), in series with . A (which cannot hold in this circuit) and subsequently over a contact z which is closed while the 1st selector is releasing. When an initial 0 is dialled contact o prevents the operation of Sp over mf. Contacts a, o are rendered ineffective for the 3rd and subsequent digits by contact d. In a normal call Sp operates when the receiver is replaced and connects up the collecting magnet KM. A known system is described, Fig. 1 (not shown), in which barred calls can be obtained by irregular operation of the dial.
Patent GB-1512414-A (GB)
Title: Process for preparing butanediol-(1,4)
IPC: C07C31/20
Filed: 1975-07-21
Abstract: 1512414 Butane-1,4-diol HOECHST AG 21 July 1975 [20 July 1974] 30448/75 Heading C2C Butane-1,4-diol is obtained by catalytically reacting but - 2 - ene - 1,4 - diol diacetate (I), but - 2 - ene - 1,4 - diol monoacetate (II), butane-1,4-diol diacetate (III) or butane-1,4- diol monoacetate IV, or a mixture of two or more thereof, with hydrogen. The catalyst is for example copper-chromium oxide to which may be added as promoter thorium or an element from Groups IVa, Va, VIa, VIIa or VIII of the Periodic Table. In the examples, copper chromium oxide was used with Mu, Re, Mo, V and Th as promoter; rhenium or rhodium on active carbon was also used mixed with the copper chromium oxide catalyst. When using I as starting material II, III and IV may be obtained as intermediates which need not be separated. Temperatures of 100-300‹ C. and pressures of 50-400 bars are suitable.
Patent GB-815712-A (GB)
Title: Improvements in or relating to fire-extinguishing materials
Inventor: CAWOOD ERIC EDWARD COOPER
IPC: A62D1/00
Filed: 1955-10-25
Abstract: 815,712. Dry fire-extinguishing compositions. NU-SWIFT Ltd. Oct. 23, 1956 [Oct. 25, 1955], No. 30464/55. Class 47 A dry fire-extinguishing composition comprises at least 50 per cent finely divided mineral talc (preferably 50-70 per cent) admixed with dried ammonium sulphate and diammonium phosphate (30-50 per cent). The composition is preferably blended with a water proofing agent e.g. an insoluble metal stearate, and an absorbent e.g. magnesium carbonate, both finely divided. The dry powder and a pressurized inert expellant gas are stored in a container and discharged simultaneously when the outlet is opened. Specification 815,711 is referred to.
Patent GB-367741-A (GB)
Title: Improvements in or relating to metal vapour or rare gas rectifiers
IPC: H01J17/04
Filed: 1931-11-03
Abstract: 367,741. Discharge rectifiers. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 3, 1931, No. 30481. Convention date, Nov. 17, 1930. [Class 39 (i).] In a metallic-vapour or raregas rectifier, an anode sleeve 1 is provided with cylindrical grids 2, 3 which are secured together by means of tangential stays 9 .. 12. Qu*artz rods support the grid within the sleeve, the rods passing freely through slots in the grid to allow movement thereof.
Patent GB-1467575-A (GB)
Title: Turret-type glass pressing machine
IPC: C03B11/04
Filed: 1975-07-22
Abstract: 1467575 Glass pressing machine CORNING GLASS WORKS 22 July 1975 [29 July 1974] 30595/75 Heading C1M An indexable turret-type glass pressing machine having mould adaptors spaced around its periphery and an anvil at the glass pressing position is then provided with a turret positioning and clamping assembly. The assembly comprises a reciprocally movable support 11 located at the glass pressing position which support has a clamp 20 provided with a wedgeshaped male member 21. The member 21 is capable of mating with one of a plurality of female members 61 each associated with a mould adaptor 25. A piston and cylinder device 26 is provided to raise and lower the support 11. In use, movement of the turret from one indexed position to another activates a limit switch LS1 to move the clamp 20 downwardly to clamp a mould adaptor 25 to the anvil 75. At the end of its downward stroke the support 11 activates a limit switch LS3 which allows the glass pressing operation to take place. After pressing the support member 11 is raised until it contacts an upper limit switch LS2 which allows a further indexing movement to take place. In a second embodiment a female member is provided on the clamp 20 which complements a plurality of male members associated with the mould adaptors. Specification 1,005,580 is referred to.