baber/WOPTO huggingface dataset:
Patent GB-634137-A (GB)
Title: A process for the production of dichloro-propylenes
IPC: C07C17/10
Filed: 1947-12-17
Abstract: Allyl vinyl dichloropropylenes, i.e. chlorinated propylenes containing both a chlorine atom in the vinyl position and a chlorine atom in the allyl position with respect to the double bond, are obtained on contacting a preheated mixture of propylene and allyl chloride at above 120 DEG  C. with chlorine with subsequent chlorination at between 200 DEG  C. and the temperature at which substantial degradation occurs.  Preferably, the above mixture is obtained by mixing preheated propylene with allyl chloride at above 120 DEG  C.  The chlorination reaction is preferably conducted at between 350 and 675 DEG  C., e.g. 500 DEG  C., with an excess of unsaturated compounds, e.g. ratios of from about 2 : 1 to 7 : 1, advantageously 2 : 1 to 3 : 1, of unsaturated compounds to chlorine may be used, and with at least an equimolecular quantity of allyl chloride compared with propylene.  Catalysts, e.g. light, carbon, tin and antimony halides, and gaseous diluents may be used.  The process may be made continuous by recycling unused allyl chloride and propylene.  To prevent side reactions the hydrogen chloride formed in the reaction should be removed as soon as possible.  The products are of use as nematocides in the disinfection and fumigation of soils. In examples: (1) propylene at 350 DEG  C. is mixed with allyl chloride at 93 DEG  C. to give a mixture at 196 DEG  C. which is mixed with chlorine so that the ratio propylene/allyl chloride/chlorine is 0.9/1.3/1.0 and chlorination is effected at 510 DEG  C. by passing through a tube with a space velocity of 3.5 pound mols. per cubic foot, the effluent being fractionated, hydrogen chloride and propylene being removed from the top of the still, and refractionated to give the dichloropropylenes and unchanged allyl chloride; in (2) the mixture is initially at 281 DEG  C., the above ration is 1.5/1.5/1, the space velocity is 13.9 and the chlorination temperature 510 DEG  C.; in (3) the mixture is at 218 DEG  C., the ratio is 1.5/1.2/1, the space velocity is 9.2 and the chlorination temperature is 510 DEG  C.; and in (4) allyl chloride at 427 DEG  C. mixed with chlorine in a molar ratio of 3.32/1 is passed through a tube at 510 DEG  C. and space velocity of 11.1 to give dichloropropylenes although with considerable carbonization as compared with the first three examples.
Patent GB-924359-A (GB)
Title: Improvements in or relating to magnetic information storage matrices
Inventor: PARSONS PETER ISAAC JAMES
Filed: 1960-09-28
Abstract: 924,359. Magnetic storage devices. ERICSSON TELEPHONES Ltd. Sept. 27. 1961 [Sept. 28, 1960], No. 33360/60. Class 38 (2). [Also in Group XXXIX] In a ferro-magnetic storage element in which a ferro-magnetic material applied to a flexible film has a preferred axis of magnetization P, Fig. 1, in the plane of the film, an area is traversed by a pair of substantially parallel conductors C at approximately 45 degrees to the preferred axis, and by an output conductor S substantially at right angles to the conductors C. Reading and writing fields are indicated by vectors R and W and " half-write " currents are applied to the two conductors C. The " O " and " I " states are marked on the axis P. The arrangement which avoids the direct reversal of the field by causing the magnetic vector to rotate, requires a lower driving field and achieves reversal more quickly. The use of a thin film enables the return path of a conductor also to be coupled with the area by passing it underneath the film, a single conductive sheet may be used for a common return. In a 4 X 4 matrix, Fig. 5, tapes M of square molybdenum permalloy runs diagonally through the row and column intersection. Read and half write conductors extend above the tapes, and return below, and half-write drive conductors B1-B4 extend along the rows but zig-zag across the tapes in such manner that they are parallel to the A conductors at the matric cells, the return path being similar and the current flow as described with reference to Fig. 6 (not shown). Because of the zig-zag arrangement, the " O," " I " directions are reversed in columns II and IV and drive pulses in A2, A4 are opposite to those in A1, A3. The arrangement of conductive, insulating, and magnetic layers on a base of phenolic bonded paper laminate is described with reference to Fig. 7 (not shown). The conductors may be formed by printed circuit techniques. A single magnetic sheet may be used instead of tapes and the assembly may be rolled up. Dimensions and field strengths are exemplified.
Patent GB-1489127-A (GB)
Title: Electrical apparatus having a cord winder
IPC: B65H75/48
Filed: 1975-08-12
Abstract: 1489127 Cord winder in a vacuum cleaner ELECTROLUX Ltd 12 Aug 1975 [31 Oct 1974] 33540/75 Heading A4F [Also in Division B8] An electrical apparatus comprises a cord winder assembly which comprises a reel 10 for storing cables 11, a clockwork type coil spring 23 mounted in a casing 22 for urging the reel 10 to rewind unwound cables, the casing 22 being connected to the reel 10 by lugs 26 engaging apertures 28 on the reel 10, and a member 32 having a sleeve 33 mounted on a stub shaft 34 by means of spaced threads 35 or grooves of the sleeve 33 engaging complementary grooves 36 or threads in the stub shaft 34 and a shaft 39 which includes a shaft portion 40, the outer end and its adjacent portion of the spring 23 being connected to the periphery of the casing 22 as at (30, 31) Fig. 2 (not shown) and the inner end being connected to the member 32 by means of a hook 38 engaging a hole in the spring 23 whereby by turning the shaft 40 clockwise the member 32 and the reel 10 are disengaged from the stub shaft 34 to allow further turning in order to increase the tension on the spring 23, and by turning in the opposite direction, upon replacement, the threads 35 are caused to re-engage the grooves 36 to lock the member 32 to the apparatus. The apparatus is a vacuum cleaner. The stub shaft 34 carries a hood 37 fixed in the vacuum cleaner. Electrical conductors 13, 14 of the cord or cable 11  are connected to resilient copper strips 16 17 by screws 15 and the tips 18, 19 of the strips 16, 17 are at different distances from the axis of rotation of the reel 10 so that during rotation of the reel 10 they will abut a respective one of two circular contacts, not shown, and slide over the contacts whereby electrical energy is transmitted to the vacuum cleaner.
Patent GB-869701-A (GB)
Title: Improvements relating to x-ray apparatus
IPC: A61B6/06
Filed: 1958-10-21
Abstract: 869,701. Television. PICKER X-RAY CORPORATION, WAITE MANUFACTURING DIVISION Inc. Oct. 21, 1958 [Nov. 26, 1957], No. 33595/58. Class 40(3) [Also in Group XX] Resistors 30, 32 mechanically coupled to the plates 34, 40 of an adjustable shutter in an X-ray apparatus utilizing a television camera tube 22 (preferably a "Vidicon") to generate signals for a receiver 45 are employed to vary the magnitudes of the horizontal and vertical sweeps in accordance with the dimensions of the shutter aperture 14 so as to obtain optimum resolution of the exposed area of the object 18. It is stated that the resistors may also vary the magnitudes of the sweeps in the receiver cathode-ray tube. Reference is made to recording the signals from the camera tube.
Patent GB-605022-A (GB)
Title: Improvements (to soil in testing) machines for testing soil, sand or the like
IPC: G01N3/10
Filed: 1945-12-12
Abstract: 605,022. Reciprocating pumps. PRICE, V. C. F., and LUPTON, H. R. Dec. 12, 1945, No. 33621. Drawings to Specification. [Class 102 (i)] [Also in Group XIX] A double-acting reciprocating pump immersed in-an oil tank has the piston mounted on a shaft which has screw-threaded engagement with the worm-wheel of a worm reduction gear driven by a constant-speed motor through a further worm-reduction gear and belt-andpulley arrangement. The piston is moved slowly along the cylinder on rotation of the motor until it completes one stroke, whereupon a stop on the shaft trips a switch to stop the motor; the return stroke is effected by manual operation of a reversing switch for the motor. Suction non-return valves admit oil to the cylinder, and delivery is effected through non- return valves to a cylinder in which is the ram of a testing-machine for compressing samples of material.
Patent GB-325492-A (GB)
Title: Thermionic cathodes for electric discharge devices
IPC: H01J9/04
Filed: 1928-11-16
Abstract: 325,492. Standard Telephones & Cables, Ltd., and Bedford, L. H. Nov. 16, 1928. Vacuum tubes. -The core of a thermionic cathode is provided with an active surface consisting of one or more alkaline earth metals by forming on a coating of the oxide or oxides, a deposit of one or more alkali metals from the vapour of the metal or metals; preferably barium and barium oxide are employed. The core may be a platinum nickel alloy containing 5 per cent of nickel and a coating of barium oxide is pro. vided in any known manner, or a coating of nickel oxide is produced by heating in air to a temperature of 900‹ to 1000‹ C. The filament is then mounted in the envelope within which is placed a source of metallic barium, situated preferably on the anode. Preferably as the source of the barium, a mixture of barium oxide. and peroxide is heated with aluminium to form metallic barium and aluminium oxide, the reaction vessel being filled up with an excess of aluminium oxide as soon as the reaction has taken place to prevent oxidation of the metallic barium. A portion of this mixture is ground, when cold, under molten paraffin wax and placed in a recess in the anode. A cover plate is secured over the recess, apertures being left to the edges to allow the escape of the barium vapour and to limit its effective vapour pressure. After exhaustion and removal of the paraffin vapour, the temperature is raised to distil off part of the barium vapour, the nickel oxide, when this is employed, being reduced. The envelope is sealed off and the distillation continued by heating the anode by electron bombardment from the cathode, the barium ions being directed to the cathode by a voltage gradient.
Patent GB-1218150-A (GB)
Title: Mechanism which includes an object arranged to travel freely on a surface
Inventor: GROH KARL HEINZ
IPC: A63H17/385
Filed: 1969-07-03
Abstract: 1,218,150. Remote-controlled vehicle apparatus. K. H. GROH. 3 July, 1969 [8 July, 1968], No. 33682/69. Heading A6S. An object 20 can 'be driven freely over a surface 10 by means of a stationary control panel 2 (having a steering wheel 9 and speed control lever 8), a flexible electric cable 32 (which will automatically wind around the object upon becoming slack) and a multiple slip-ring mounted on the object 20 (to afford electrical connection to, e.g. wheels 50), the object thus driven having means disposed thereon (e.g. magnet 61) to influence a toy or model vehicle 6 which is disposed on a further surface 15 so that the vehicle can move over the surface.
Patent GB-1168412-A (GB)
Title: Chloromethyl Esters of Thiosulphonic Acids
IPC: A01N41/08
Filed: 1968-07-15
Abstract: 1,168,412. Microbiocides containing esters of thiosulphonic acids. BUCKMAN LABORATORIES Inc. 15 July, 1968 [11 Aug., 1967], No. 33688/68. Heading A5E. [Also in Divisions C2 and D2] The growth or reproduction of microorganisms is temporarily controlled by compositions containing 0.01-95% by weight of at least one compound of the formula RSO 2 S CH 2 Cl wherein R is a C 3-4  alkyl group, a diluent or carrier and optionally a surface active agent. The carrier may be an inert solid such as talc, pyrophyllite, synthetic fine silica, Kieselguhr, chalk, diatomaceous earth, calcium carbonate, bentonite, fullers earth, wheat flour, soybean flour, pumice, tripoli, wood flour, walnut shell flour, redwood flour or lignin, and the diluent may be water or an aqueous solvent such as hydrocarbon, chlorinated hydrocarbon, ketone, ester, ether or alcohol. The surface active agent may be non-ionic and is preferably an alkylpolyoxyethylene ethanol or an alkylpolyphenoxypolyoxyethylene ethanol. The compositions are particularly useful for aqueous solutions such as those used in the production of pulp or paper, using 0.05-500 parts of the novel compound per million parts of water, of for treating soil.
Patent GB-1175874-A (GB)
Title: Production of Sulphur-Containing Heterocyclic Compounds
Inventor: BROWN JOSEPH PATRICK
IPC: C07D339/04
Filed: 1967-07-21
Abstract: 1,175,874. Heterocyclic thioketones. MONSANTO CHEMICALS Ltd. 27 June, 1968 [21 July, 1967], No. 33729/67. Addition to 1,049,637. Heading C2C. 5 - Mercapto - 1,2 - dithiole - 3 - thiones and their salts are prepared by heating a corresponding 1,2 - dithiole - 3 - thione having the formula wherein R is hydrogen, or an aliphatic or aromatic group, in alkaline alcoholic medium containing sulphide or polysulphide ions, and optionally acidifying the resulting salt to obtain the free mercaptan. When R is an aliphatic group, this may be a straight or branched chain alkyl or a cycloalkyl or aralkyl group; when aromatic, R may be aryl, alkaryl, alkoxyphenyl or chlorophenyl. The sulphide or polysulphide ions are introduced as alkali or alkaline earth metal-, ammonium- or diethylammonium-salts or are formed in situ from sulphur, H 2 S or a thiation product of the dithiolethione starting material, and alkali metal hydroxide. The reaction medium may contain up to 50% by volume of water.
Patent GB-521605-A (GB)
Title: Supporting means for axle-hung electric motors on electrically propelled vehicles
IPC: B61C9/48
Filed: 1938-11-21
Abstract: 521,605. Mounting electric motors on vehicles. ENGLISH ELECTRIC CO., Ltd., and BINNEY, E. A. Nov. 21, 1938, Nos. 33766/38 and 24863/39. [Class 79 (iii)] The nose of an axle - hung electric motor is resilientlymounted on an intermediate member which is in turn resiliently -mounted on the vehicle frame, the arrangement being such that the intermediate member moves solidly with the motor and resiliently against the frame for one direction of thrust or rotary movement of the motor about the axle and vice versa for the other direction of movement. In the construction shown the nose of the motor 1 has lugs 1a, 1b between which are located a packing piece 7, an intermediate or floating bar 6, and a rubber or other spring 5 held between cups 3, 4. The bar 6 and packing piece 7 are resiliently held between lugs 2a, 2b of a frame member or transom, not shown, by means of rubber or other springs 10 held between cups 8, 9. Thus, when the motor nose tends to move downwards the bar 6 moves solidly therewith and compresses the springs 10, but when the motor nose tends to move upwards the bar 6 remains solidly against the frame lugs 2a and the spring 5 is compressed. The lower cups 3, 8 are preferably secured, as by welding, to the lugs 1b, 2b. Bolts 11, which may have springs 12, secure the parts in place. The bar 6 may be below the springs instead of above them. In order to facilitate dismantling screws are passed through clearance holes 1c in the lugs 1b, through the spring 5 and the cups 3, 4 and are screwed into tapped holes 6a in the bar 6 so as to pull the latter downward and compress all the springs 5, 10 the motor being temporarily fixed against all upward or downward movement. The bolts 11 are now removed so that the packing piece 7 can be slid out endways. The screws are next removed from the bar 6 so that this can also be removed, leaving the motor free for removal. For re-assembly, these operations are performed in the reverse order. In a modification, in order to avoid the necessity for temporarily fixing the motor, a lower bar is temporarily screwed to the lower lugs 2b and the springs 5, 10 are compressed to release the packing piece 7 by means of further screws connecting this lower bar to the lugs 1b and the bar 6.
Patent GB-763419-A (GB)
Title: Improvements in or relating to a traverse motion device for operating centrifugal spinning machine thread guide supporting frames
Inventor: LUDWIG HELLMUTH
IPC: D01D7/02
Filed: 1954-11-22
Abstract: 763,419. Builder-motions for centrifugal spinning machines. VEB SPINN-UND ZWIRNEREI-MASCHINENBAU KARLMARX-STADT. Nov. 22, 1954, No. 33793/54. Class 120 (2). The guide-tubes of a centrifugal spinning machine are mounted in a frame which is vertically reciprocated by cams operating through a piston and cylinder system. Cylinders 3 are fixed to end-frames of the machine and pistons 9 slide within them. Each piston 9 carries a cam follower 15 that rides on the periphery of a cam 6 rotating in an oil sump 21. Push rods 12 connect the pistons 9 to the frame 13.
Patent GB-385418-A (GB)
Title: Improvements in and relating to loud speakers
IPC: H04R9/04
Filed: 1931-12-07
Abstract: 385,418. Loud-speakers. MAGNAVOX CO., 155, East Ohio Street, Chicago, U.S.A.-(Assignees of Trefry, L. D. ; 542, North Pine Avenue, Chicago, U.S.A.) Dec. 7, 1931, No. 33873. Convention date, July 15. [Class 40 (iv).] The front grill constitutes one of the elements by which a loud-speaker is operatively secured to a baffle. The grill 19, Fig. 1, is apertured to receive a bolt 20 threaded into the central polepiece 14, and co-operates with the chassis 12 to clamp the baffle 10 between them. In a modification, the grill 30, Fig. 4, has a circular groove 32 positioning the grill in the aperture of the baffle 10, while bolts 31 clamp the baffle between the grill and the chassis 12. In a further modification, the grill 25, Fig. 3, is attached to the chassis 12, and co-operates with arms 27 attached to the magnet system by a bolt 29 to clamp the baffle 10 between. them. As an alternative, the chassis 12, Fig. 5, may have an upstanding rim carrying studs 34 which co-operate with sloping slots 37 in upstanding legs 36 of the grill 35 so as to grip the baffle 10 between chassis and grill with any desired pressure determined by rotation of the grill. In the modification shown in Fig. 2, the grill 23 is secured to the chassis 12 and enters the aperture of the baffle 10, so as to lay flush with it, screws 24 securing the baffle to the chassis, so that the grill determines the operative position of the loud-speaker relatively to the baffle.
Patent GB-1304738-A (GB)
IPC: B29C55/00
Filed: 1970-07-13
Abstract: 1304738 Making sheets ALUMINUM CO OF AMERICA 13 July 1970 [22 July 1969] 33886/70 Heading B3A [Also in Division B8] In a method of, and apparatus for sequentially joining sheet materials to provide a registered continuous strip, a leading sheet, e.g. separated from a pile 2 by a suction head 26 and advanced by rollers 40 and a belt 42 having side guides (50), Fig. 2 (not shown), to a stationary table 70, 72, is fed to a predetermined position, e.g. by rollers 12 as far as a spring mounted stop or a reference mark (not shown) on a press 8, a trailing sheet being fed into contact with a registry means supporting the trailing end of the leading sheet, e.g. a stop 74, lifted into the feed path on the table 70, 72, said registry means then being lowered, e.g. so that the two ends of the sheets overlap or their edges abut, the sheets then being clamped in registered position, e.g. by clamps 100, 102, and fastened together, e.g. by stapling, welding or adhesive, unclamped, and moved forward as a unit. The sheets may be metal, each having previously been provided with a printed pattern as by lithography, mechanical or chemical means, the joined strip, comprising registered sheet elements, being fed to the press 8 comprising several dies 10 each performing a finishing operation on each sheet. An air nozzle 28 may be used to prevent double feed and an air nozzle (94), Fig. 6 (not shown), may be provided to lift the trailing end of the leading sheet, an arm 90 increasing the elevation produced whilst an arm 92 restricts inadvertent elevation of the trailing sheet. The resultant strip is fed intermittently by the rollers 12, which may not contact the entire strip width so as to obviate contact between staples and the rollers, into the press 8 when the ram 230 is in its raised position and since the press will reciprocate a predetermined number of times per sheet so that each die contacts each sheet of the strip once, a counter (240), can be used to control the clamping and joining operation so that sheets are fastened to the trailing end of the strip. Alternatively a timer may be used and the separation and feeding operations may also be controlled. The sheets may be fed to the table 70, 72 by rollers (62), (63), Fig. 13 (not shown), contacting their upper surfaces, the sheets (69) resting on a table 60 having a low-friction covering. The pile table 20 may be intermittently raised. The joined strip may be coiled and stored rather than being fed to a press.
Patent GB-174817-A (GB)
Title: Improvements in money boxes or savings banks
IPC: A45C1/12
Filed: 1921-01-21
Abstract: 174,817. Straube. G. Jan. 21, 1921. Buildings of permanent form.-A money box constructed to represent a building such as a Swiss Chalet, contains a drawer 3, the plain front 3<a> of which when closed is flush with the wall 1<a> of the building. A stop-piece 4 on the underside of the drawer prevents complete withdrawal. Below and secured to the stop-piece and sliding also in a groove 5 formed in the upper and middle layers of the 3-ply bottom is a member 6. The rear end of this member is adapted to be engaged and moved forward to open the drawer, by means of a tool 8 pushed through a hole 9 in the front of the base. The tool 8 is also adapted to lock the drawer in position, being for this purpose pushed through registering holes 10 in the sides of the building and drawer. In this locking position the handle of the tool is arranged to appear part of a stack of wood arranged outside the building.
Patent GB-389920-A (GB)
Title: Improvements in or relating to magnetic separators
IPC: B03C1/033
Filed: 1931-12-09
Abstract: 389,920. Magnetic separators. DARWINS, Ltd. and CATHERALL, A. C., Fitzwilliam Works, Templeborough, Sheffield. Dec. 9, 1931, No. 34091. [Class 72.] In a magnetic separator of the trough or tray type, the surface units 11 .. 15 are arranged with gaps 16 .. 19 between, the end units 11, 15 and/or some of the intermediate units being connected to bar magnets 20 arranged in parallel by conductors 21, 22. The units are held in position by a block 24 of low melting-point non-magnetic metal or alloy which is cast around them and the block 24 preferably also provides a frame round the units. The conductors 21, 22 are grooved at 26 so that the block 24 is attached securely thereto and the surface units are provided with countersunk holes 25 which are filled with portions of the block 24. The magnets 20 may be arranged in series instead of in parallel and the gaps 16 .. 19 may be straight or curved.