baber/WOPTO huggingface dataset:
Patent GB-779070-A (GB)
Title: Process for the production of cross-linked elastomers of high molecular weight, and intermediates in the production thereof, by reacting linear or substantially linear polyesters with diisocyanates and diamines
IPC: C08G18/10
Filed: 1954-11-24
Abstract: A stable intermediate which can be converted by heat into a cross-linked elastomer is obtained by mixing a diisocyanate containing the urethdione group <FORM:0779070/IV(a)/1> with a chain lengthened polyester obtained by reacting a substantially linear aliphatic saturated polyester containing hydroxy end groups with excess of diisocyanate and reacting the product with an excess of an aromatic diamine, the free isocyanate groups in the urethdione diisocyanate being either equivalent to or less than equivalent to the free amino groups in the chain-lengthened polyester.  In a modification, a diisocyanate mixture is used, at least 30 per cent by weight of which contains a urethdione diisocyanate.  The initial polyester may be slightly branched, i.e. may be derived by using one mol. of a triol for each twenty-seven moles. diol.  The intermediate is soluble, e.g. in glycol monomethyl ether acetate.  The curing time is determined by the basicity of the diamine used in the process which affects the speed with which the urethdione ring splits.  In examples: (1) a glycol adipic acid polyester is reacted with 1.2.4-tolylene diisocyanate and then with o-dichlorobenzidine and cast and heated for 20 hours at 100 DEG  C.  This stable product is mixed on rolls with dimeric 1.2.4-tolylene diisocyanate to give a stable product which can be extended at over 100 DEG  C. and cured by heating at 140 DEG  C.  Figures are given for various mechanical properties of the product.  (2) Similar to (1) but using 1.5-naphthalene diamine. (3) Similar to (1) but using a mixture of isomeric tolylene diisocyanates in the first reaction.  (4) Similar to (3) but using dimeric 1-ethoxybenzene-2.4-diisocyanate in the last stage.  (5) Similar to (3) but using a mixture of dimeric 1.2.4-tolylene diisocyanate and 4.41 - dimethylmethane diisocyanate. (6) a succinic acid-1.2-propylene glycol polyester is reacted with p-phenylene diisocyanate and the product with o-dichlorobenzidine. The final reaction is with dimeric 1.2.4-tolylene diisocyanate. (7) Similar to (1) but using 4.41-diphenyl methane diisocyanate in the first stage.  Other urethdione diisocyanates referred to are dimeric 1-chloro-2.4-phenylene diisocyanate and dimeric 1-ethyl-2.4-phenylene diisocyanate.  The Specification contains descriptions of the ring test for tensile strength, the fan test for resistance to further tearing and the needle test for resistance to tearing.  Specification 700,609 is referred to.
Patent GB-478616-A (GB)
Title: Improved circuit-arrangement for x-ray apparatus
IPC: H05G1/36
Filed: 1936-12-11
Abstract: 478,616. Supply systems for discharge lamps &c. COMPAGNIE GENERALE DE RADIOLOGIE. Dec. 11, 1936, Nos. 34094 and 34095. Convention dates, Dec. 12, 1935 and Feb. 15, 1936. [Class 38 (iv)] In X-ray apparatus in which the voltage applied to the primary of the H.T. transformer is variable the voltage applied to an auxiliary transformer 8 is simultaneously varied and its secondary winding is connected in the cathode heating circuit so as to reduce the heating current when the H.T. voltage is increased and vice versa. An X-ray tube 7 is supplied from a H.T. transformer 4 whose primary is connected through a tap changing switch 3 to a tapped auto-transformer 1 which is connected to mains 2. The cathode 7b is supplied from a transformer 6 whose primary is connected to tappings on the auto-transformer 1 through a boosting transformer 8 the primary of which is connected to the tap changing switch 3 on the one hand and to a tapping on the auto-transformer 1 on the other hand so that the cathode heating current is varied when the H.T. voltage is varied. The winding 8& of the transformer, is arranged to buck the voltage applied to the heating circuit. The transformers 8 and 6 may be tapped for adjustment purposes and resistances 9 and 10 in the primary circuit of the transformer 6 may also be tapped so as to adjust the relation between anode voltage and cathode heating. Resistance 10 may be inserted if operation is desired below the optimum value of cathode heating. If strict proportionality is not required the lower end of the winding 8a may be connected to a tapping on the transformer 1 other than that to which the left-hand end of the winding 4a is connected.
Patent GB-878259-A (GB)
Title: Pyridazine derivatives and a method of preparing same
IPC: C07D237/14
Filed: 1959-10-08
Abstract: The invention comprises pyridazine derivatives of the general formula <FORM:0878259/IV (b)/1> wherein R is a hydrogen atom or a C1-C3 alkyl radical, X is a hydrogen atom, an alkali metal or alkaline earth metal or a C1-C4 alkyl radical, Hal is a hydrogen atom and n equals the valency of X, and their manufacture by reacting a 3,6-dihalo pyridazine with a compound of the general formula <FORM:0878259/IV (b)/2> wherein M represents an alkali metal or alkaline earth metal, X1 is an alkali metal, alkaline earth metal or C1-C4 alkyl radical, R is as above defined and m equals the valency of Me and n the valency of X1, whereby one equivalent of metal halide is split off; the free acid may be obtained by acidification of the salt.  The reaction may be effected in water or other polar solvent and the O-alkali compound of the hydroxy-acid reactant may be formed in situ. Examples describe the production of (1) 3-chloro and 3-bromo pyridazine-6-oxyacetic acids and their sodium salts and d,l-a -(3-chloro pyridazine-6-oxypropionic acid and its sodium salt.  The products may be used as herbicides (see Group VI).ALSO:Herbicidal compositions comprise pyridazine derivatives of the general formula <FORM:0878259/VI/1> wherein R is a hydrogen atom or a C1-3 alkyl radical, X is a hydrogen atom, an alkali metal or alkaline earth metal or a C1-4 alkyl radical, Hal is a halogen atom and n equals the valency of X, and a carrier or another weed control agent such as a halogenated phenoxy acetic acid especially 2 : 4-dichlorphenoxy acetic acid.  Named pyridazine derivatives are the 3-chloro and 3-bromo pyridazine-6-oxyacetic acid compounds and d,1-a -3-chloro pyridazine-6-oxy-propionic acid.
Patent GB-1061421-A (GB)
Title: Method of and apparatus for heating steel billets
IPC: C21D9/00
Filed: 1963-08-29
Abstract: 1,061,421. Billet heating furnaces. INLAND STEEL CO. Aug. 29, 1963 [Aug. 30, 1962], No. 34149/63. Heading F4B. Steel blooms or billets containing tellurium are directly heated prior to rolling by burners arranged so that the tips of the burner flames do not contact the surface of the billets. In a pusher type furnace, Fig. 1, a lower row of burners 11 deliver a flame parallel to the billets, while an upper row of burners 12, directing flames downwardly towards the billets is so controlled that the tips of the flames do not reach the billets. The rows of burners are staggered, or the upper row of burners may be omitted. The billets may be of round or rectangular cross-section.
Patent GB-333827-A (GB)
Title: Improvements in typographical composing machines
IPC: B41B11/00
Filed: 1929-11-09
Abstract: 333,827. Hart, H., (Mergenthaler Linotype Co.). Nov. 9, 1929. Assembling niatrices; driving-mechanism.-In machines in which the matrices are released automatically by means such as a perforated tape, automatic means is provided for controlling the level at which two-character matrices are assembled. The short movable rail C<3>, Fig. 7, in the assembler, by which the matrices are arrested at the upper level, is made shorter than usual, and the matrices are immediately pushed off it on to the fixed rail C' by the star-wheel D, so that the movable rail is always clear of matrices and may be adjusted at any time. The star-wheel has only two points, so as to allow the matrices to fall to the lower level when required, and a movable deflector is provided to guide the matrices past the end of the fixed rail C<4>. The matrix-releasing mechanism comprises a series of vertical slides G<3>, Fig. 3, which operate the escapement-reeds A<2> through pivoted camyokes G<5>. Spring plungers G<8> tend to raise the slides G<3>, which are normally held down by a bar J, which can be lifted by an electromagnet J<3> against the pressure of a spring, in order to release the slides. The slides are notched to cooperate with notched locking-bars K, which are shifted horizontally by electromagnets under the control of signals in the perforated tape, each rearrangement of the bars K permitting one of the slides G<3> to rise and operate an escapement. The releasing combinations on the bars K are duplicated. and the slides G<3> are divided into two groups, corresponding to upper and lower case characters respectively, one or other of the groups being locked out of action by a special locking- bar L, which is controlled by the perforated tape. The perforations in the tape permit spring pins, carried by a reciprocating slide, to pass through the tape into mercury wells, by which the circuits of the operating electromagnets are completed. In order to prevent sparking, a commutator in the form of a rotating disc, having high and low portions and engaged by spring brushes, is provided, to prevent completion of the circuits until the pins have entered the mercury wells. The assembly of matrices at the upper or lower level is determined by a pair of vertical slides, arranged in line with the slides G<3>, and controlled from the perforated tape through the bars K. The slides control the circuits of magnets V<1>, V<2>, which act through a lever C' to position the movable assembling-rail.
Patent GB-639750-A (GB)
Title: Improvements in or relating to imitation coal fires
Inventor: MCMATH HERBERT JAMES
IPC: F24C7/00
Filed: 1947-12-27
Abstract: 639,750. Moulding imitation coal fires. ELEXCEL, Ltd. Dec. 27, 1947, No. 34308. [Class 87 (ii)] [Also in Group XI] A method producing imitation fuel comprises spreading and shaping a sheet of flexible textile material over a jig consisting of a baseplate carrying separate detachable formers, colouring and treating the material with glue or the like, baking it and removing it from the baseplate, the formers being withdrawn separately. Individual former members 17 are each provided with a pair of pins 13 interconnected by a metal plate 14. The pins 13 may be fitted into tubular supports 12 mounted on a baseplate 10 which is provided with a vertical backplate 11 having an irregular upper edge. Each former 17 is used for shaping a part of the imitation fuel to resemble a piece of coal and is covered with metal foil which forms an opaque lining for these parts. A single or double sheet of fabric is placed over the whole jig and pressed down between the formers, to give a re-entrant effect if desired, the sheet of fabric being secured at the edges by a rigid wire squeezed in a U-section metal strip 19 which is clamped to the baseplate by levers 20. A sheet of woven glass may be placed over this. The whole fabric is then treated with glue which may be coloured and after subjecting to preliminary baking, black paint is applied over which glue and coal dust may be painted, the effect of ash being provided by asbestos fibre. When finally baked, the imitation fuel and formers 17 are lifted from the baseplate and the formers 17 removed separately. Specification 639,770, [Group XI], is referred to.
Patent GB-1368088-A (GB)
Title: Garment manufacture
IPC: A41H3/08
Filed: 1972-05-10
Abstract: 1368088 Garment patterns WIRA 10 May 1972 [21 July 1971] 34308/71 Heading A3V A garment panel 2' cut out from sheet material 3 in accordance with one size and/or style is provided with delineations 5", 6" of how the panel should be further cut to produce a panel in accordance with different sizes and/or styles. The panel preferably forms part of a pattern comprising two or more panels which when joined together produce a completed garment. The delineations are preferably in the form of ink markings which may be in different colours, though delineation by perforation or indentation may be employed if desired. The cutting and marking of the panel may take place in stages or simultaneously in which case a relatively reciprocable cutting die and platen may be used, the die or platen having associated therewith marking edges, which may be constructed of felt material to which ink is supplied. Alternatively carbon paper may be placed between the marking edges and the panel, or in place of the reciprocable arrangement described above the die or platen may be in the form of a rotary drum. (For Figure see next column)
Patent GB-416541-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/32
Filed: 1933-12-07
Abstract: 416,541. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl- Ufer, Berlin.) Dec. 7, 1933, No. 34452. Convention date, Dec. 7, 1932. [Class 38 (ii).] To secure a better voltage distribution in a high tension transformer having disc-shaped windings, the winding groups b, c are separated by one or more insulating tubes d, e and each winding group is provided with a parallel connected layer winding f, g wound on the sleeve adjacent the other winding an oil channel being provided between the disc winding and the layer winding. In addition, metal rings h<1>, h<2>, i<1>, i<2> connected to the ends of the windings are mounted adjacent the ends of the windings. In a modification the windings f, g are omitted and the inner turns of each disc coil are spaced away from the other turns and mounted on the insulating sleeve. German Specification 253,118 is referred to. The Specification as open to inspection under Sect. 91 comprises also a modification in which the winding f, g is omitted and the rings h, i are made larger and arranged nearer to the opposing winding than the winding with which they are associated. This subject-matter does not appear in the Specification as accepted.
Patent GB-1008464-A (GB)
Title: Aqueous solutions of polyalkylene imine compounds, and process of making and using the same
IPC: D21H17/54
Filed: 1961-09-26
Abstract: Aqueous non-gelling solutions are prepared from reaction products of a polyalkylene imine, optionally with a polyalkylene polyamine, and an apihalohydrin or dihalohydrin in a molar ratio of halohydrin to imino and amino groups of 1: 0.5 to 1: 2. Examples of polyalkylene polyamines are diethylene triamine, triethylene tetramine and tetra-ethylene pentamine.  The preferred reaction products are of polyethylene imine and epichlohydrin; other imines specified are 1,2-propylene-, 2,3-butylene-, C-propyl ethylene-, C-n-butyl ethylene- and C-benzylethylene imines.  The solutions are prepared by carrying out the reaction in water.  Uses.-Improving the wet strength of fibrous cellulosic materials.  Specification 996,388 is referred to.ALSO:The wet strength of paper and cardboard is improved by adding to the aqueous pulp an aqueous solution of a reaction product of a polyalkylene imine, optionally with a polyalkylene polyamine, and an epihalohydrin or dihalohydrin in a molar ratio of halohydrin to imino and amino groups of 1 : 0.5 to 1 : 2.  The preferred reaction products are of epichlorhydrin and polyethylene imine to which diethylene triamine, triethylene tetramine or tetraethylene pentamine may be added.  In Example 5 the solutions are added to unbleached, unbeaten Kraft pulp.  Specification 996,388 is referred to.
Patent GB-422874-A (GB)
Title: Improvements in or relating to change-speed mechanism for variable speed gear
IPC: F16H63/14
Filed: 1933-12-08
Abstract: 422,874. Change-speed gear. ROESCH, G., and CLEMENT TALBOT, Ltd., Barlby Road, Ladbroke Grove, London. Dec. 8, 1933, No. 34632. [Class 80 (ii)] A change-speed gear comprises an actuating member, a number of gear engaging and disengaging means with a corresponding number of releasable mechanical connections to the actuating member, and an adjustable selector mechanism which may be set to release a connection to disengage a gear during the first part of the movement of the actuating member and during the remainder of such movement to close another connection and also to alter the adjustment of the selector mechanism. A succession of movements of the actuating pedal brings in the various gear trains in order, and indicates the next pre-selection by moving the hand selector-control; operation of the hand-control however does not move the actuating-pedal. The Figure shows a construction for use in conjunction with the Wilson gear-box described in Specification 370,442. A gear may be pre-selected by a hand lever 17 which through a worm-sector and wheel 15, 14 rotates a shaft 11 carrying a number of cams, to a position wherein one cam will permit the spring-actuation of a corresponding swing- ing link which link on depression of the bus-bar 10 by a pedal and its subsequent release, is engaged by the rising bus-bar and applies the brake-band of the selected epicyclic gear, the swinging link of the previous gear being simultaneously disengaged. A rocking-lever 21 is either connected to the pedal-operated busbar 10, or itself actuates the bus-bar being actuated by a pedal 13 through a spring connection 9. At its forward end the lever 21 carries a pawl 30 which, in the latter part of the rising movement of the bus-bar, engages a ratchet wheel 38 on the cam-shaft, rotating it to prepare the next gear for engagement at the next actuation of the pedal. The pawl is mounted on a rod 29 which rod is pivoted on the rocking-lever 21 and is adjustable by a nut 35 on a swivel bearing 32.
Patent GB-843156-A (GB)
Title: Improvements in or relating to the inflation of tyres
Inventor: MITCHELL DESMOND WILLIAM
IPC: B60C25/132
Filed: 1958-10-29
Abstract: 843,156. Roller conveyers. FORD MOTOR CO. Ltd. Oct. 29, 1958, No. 34706/58. Class 78(1). Tubeless tyres after assembly on wheel rims are transported by a roller conveyer 1 to a position below an inflating station provided with means for stopping the assembly, this means causing also the actuation of means 5 for raising and lowering the assembly to and from the inflating apparatus. The conveyer feeds the assemblies by gravity and consists of two parallel series of short rollers which support the tyres 2 but allow the rims 3 to pass between them. The movement of an assembly is stopped when its rim comes into contact with a roller 21 mounted on a lever 10 which is pivoted at 11. The roller 21 is carried by an upward extension 20 of a lever 15 which is pivoted at 16 between bifurcations 13 forming the upper end of the lever 10. A spring-actuated plunger 18 mounted in the lever 10 tends to rotate the lever 15 clockwise. The right hand end 23 of the lever 15 rests on a roller 24 which is mounted in an arm 22 fast on a shaft 25. Another arm 26, also fast on the shaft, carries a roller 27 which is situated between two of the rollers 1. When the leading edge of the tyre engages the roller 21, the roller follows the contour of the tyre until it contacts the rim. During this movement the lever 15 turns clockwise until the stop 19 on it comes into contact with the bifurcations 13. When this occurs the lever 10 turns and closes the microswitch 8a controlling the actuating of the lifting table 5. After inflation since there is no gap between the tyre and rim, the latter can ride over the roller 21 and the assembly continues its travel. When the roller 27 is depressed by the tyre, it causes retraction of the roller 21 to prevent the lifting operation being initiated by contact with the trailing edge of the rim. Specification 840,076 is referred to.
Patent GB-650961-A (GB)
Title: Container for food products
IPC: B65D75/30
Filed: 1947-12-30
Abstract: A fluid tight container for concentrated food products to be immersed in a hot liquid for the preparation of hot beverages, comprises an outer casing and a metallic alloy adapted to melt at a temperature between 60 DEG C. and 100 DEG C.  The contents of the container are thus released when the temperature of the surrounding liquid reaches the melting point of the alloy, which may be Wood or Darcet alloy. The container may comprise two sheets secured together around their edges by goffering, glueing, folding or stamping, one or both sheets being of the alloy. Alternatively the peripheral connection between the two sheets may be of fusible material.  In another example the container comprises a box with a cover made of or secured by means of the alloy.  In a modification, the box is provided with one or more perforations closed by the alloy.
Patent GB-453553-A (GB)
Title: Process for the agglomeration of fine iron ores
IPC: C22B1/16
Filed: 1935-12-16
Abstract: Fine iron ores are agglomerated in admixture with coke produced by coking middle quality coal obtained from coal washing plant and containing a considerable proportion of waste or shale.  Other fine material such as iron oxides obtained from metallurgical plant may be added, and the moist mixture may be sintered in a Dwight-Lloyd apparatus.
Patent GB-393993-A (GB)
Title: Improvements in or relating to oil burning apparatus
IPC: F23D11/04
Filed: 1931-12-17
Abstract: 393,993. Liquid-fuel burners. MOTLEY, L., Nuneham, Staines, Middlesex. Dec. 17, 1931, No. 34959. [Class 75 (i).] An oil-burning apparatus comprises a pipe delivering oil fuel to a cup a which is rotated at a high speed to atomize the fuel for combustion in a flame tube c by a turbine or rotary motor d<8> driven from a water-tube or flash-type steam generator b supported by the flame tube c and heated by the burner flame. The cup a is carried by a tubular shaft a<1> which also carries the turbine rotor a2, a twin fan rotor a<3> delivering air through an adjustable passage d<12> to the burner flame, a pinion h<1> geared through a wheel train h to a shaft h<2> fitted with a detachable starting handle, and a worm e<7> engaging a worm wheel e<6> driving the pumps supplying oil to the cup a and water to the steam generator b. The air intake to the fan is through a chamber d<15> which may be connected to a casing surrounding the flame tube and steam generator. The steam generator may be mounted so as to allow it to be swung out of the flame area, thereby enabling the apparatus to be used for heating a separate steam generator. The starting handle may also be arranged to operate a magneto for supplying sparks for ignition.