baber/WOPTO huggingface dataset:
Patent GB-793780-A (GB)
Title: Production of condensation polymers
IPC: C08G18/60
Filed: 1954-08-06
Abstract: Plasticized polyurethanes are prepared by condensing polyisocyanates or polyiso-thio-cyanates with organic polyhydroxy or polymercapto compounds in the presence of a plasticizer for the finished polymer which is a non-reactive organic material having a boiling point of at least 200 DEG  C. and soluble in the condensation product.  The products may be solid or foamed, the foams being obtained by including in the reaction mixture compounds such as an oxide, hydroxide or alcoholate of an alkali metal, or a quaternary ammonium base.  Preferably the ratio of -NCO or -NCS groups to active hydrogen atoms in the polyhydroxy or polymercapto compound is at least 1 to 1. If there are no free isocyanate groups in the condensation product free polyisocyanate must be added before curing can take place. Curing temperatures are preferably 100 DEG  to 125 DEG  C.  The plasticizer is preferably about 40 to 60 per cent of the total weight.  The Specification lists a large number of polyisocyanates, polyiso-thio-cyanates, polyhydroxy and polymercapto compounds and plasticizers.  Twenty-one examples of the production of solid plasticized resins are given and two of the production of foams.  In the examples, triethanolamine, castor oil, and the reaction products of ethylene or propylene oxide with glycerol or triethanolamine were reacted with m-tolylene diisocyanate or p,p1-diisocyanodiphenylmethane in the presence of chlorinated diphenyl or other high boiling compounds such as other chlorinated aromatic hydrocarbons, expoxidized safflower oil, tricresyl phosphate, 2-ethylhexyl diphenyl phosphate, butyl phthalyl butyl glycolate and dimethoxy tetraethylene glycol, to give plasticized solid resins.  Foams were produced by reacting castor or hydrogenated castor oil with m-tolylene diisocyanate in the presence of chlorinated diphenyl, N-methylmorpholine and benzyl trimethyl ammonium hydroxide. Specification 773,897 is referred to.
Patent GB-295515-A (GB)
Title: A process and apparatus for stripping the kernels of coffee berries
IPC: A23N5/00
Filed: 1927-08-31
Abstract: 295,515. Jackson, L. Mellersh-, (Krupp Grusonwerk Akt.-Ges., F.). Aug. 31, 1927. Hulling, husking, and decorticating. -Coffee berries are in a single operation stripped of their pulp, freed from mucilage, and the kernels washed in readiness for drying. The berries are fed from a hopper 4 to a helical conveying portion 10 of a rotating cylinder 3 mounted in an outer stationary cylindrical casing 1. A small clearance is left between the two cylinders and in this space the coffee berries are caused to roll. The periphery of the inner cylinder is shown developed in Fig. 4. Continuous longitudinal ribs 11 are arranged on the inner surface of the outer casing. Intermittent ribs 12, preferably inclined to give a converging effect to the berries, extend between damming rings 13 arranged round the inner cylinder. The rings project a little beyond the ribs 12, are provided with inclined front surfaces 14, and may be arranged at progressively decreasing distances apart. The material coming from the worm 10 is pressed against the inclined surface of the first ring and as it overflows through the narrow spaces between the rings and the casing the berries are stripped, the pulp escaping through slots or sieve-like openings 15 at the bottom of the casing. The pulp is practically removed in the first half of the cylinder and the mucous integument in the remainder. Rinsing water is continuously admitted through openings 8, 9. The kernels are pressed, by delivering ribs 12<1>, towards an outlet 5 arranged in the upper part of the cylinder and overflow into a delivery pipe 6<1> in which they are washed by water admitted through a funnel 7. The mixture of pulp and mucilage escaping from the casing may be treated in any briquetting device to mould combustible briquettes from the mixture, the mucilage acting as the binder for such briquettes.
Patent GB-870470-A (GB)
Title: Improvements relating to reinforced flexible diaphragms
Inventor: ROYLANCE DENNIS
IPC: F16J3/02
Filed: 1958-07-18
Abstract: 870,470. Reinforced flexible diaphragms. BURTONWOOD ENGINEERING CO. Ltd. Oct. 19, 1959 [July 18, 1958], No. 23050/58. Class 140. A textile-reinforced diaphragm of dish shape of the type required to flex in opposite directions is made by winding a bias-cut cord material into a cylindrical form on a mandrel, binding a nylon cord or metal wire at the centre and pulling one half of the cylindrical fabric back over the other half, as shown in Fig. 4, where the warps of one layer lie across those in the other layer; then forming the doubled tube into a conical shape by displacing the tubular fabric over a conical shaped former brought up to the end of the mandrel, and finally providing the cone-shaped fabric on one or both faces with a layer or layers of rubber, or thermoplastic resin which is then vulcanized or cured. The product is shown in Fig. 1 in which the upper and lower layers of fabric are 5 and 6, folded around a metal ring 7. The fabric reinforcing layer strengthens the sharply radiused corners under the outer coating of rubber or plastic 2, 3, where stressing occurs. The cord material used may be of cotton or nylon in the form of side-by-side cords loosely bound together by a finer weft, and is friction calendered before use.
Patent GB-155634-A (GB)
Title: Improvements in or relating to boxes for electrical apparatus
IPC: H02G3/08
Filed: 1919-09-19
Abstract: 155,634. Crompton &. Co., and Jones, W. F. Sept. 19, 1919. Resistances.-A box for an electric switch, rheostat, &c. has a pair of end frames rigidly held apart by rods or tubes C, each end frame being so constructed as to enable the box to be secured thereby to a support or to another box, and also to enable the walls of the box to be secured to it. The end frames preferably consist of two flanged plates A, B, the outer flange serving for securing the box and the inner one to receive the walls D of the box. A number of boxes may be secured together and either stand on the floor or be secured to a wall, as shown in Fig. 7, with a hinge connexion L at the bottom and a hook M at the top, permitting the back of apparatus in the boxes to be inspected. The spaces enclosed by the outside flanges of the boxes may accommodate the connexions or additional parts of the apparatus, such as relays, overload coils, &c., covers being affixed thereto if necessary.
Patent GB-237459-A (GB)
Title: Improvements in or relating to slide or gate valves
IPC: F16K3/18
Filed: 1924-10-01
Abstract: 237,459. Scheh, J. J. Oct. 1, 1924. Closure members; wedging or jamming.- The valve discs of a sluice valve are provided with bevelled projecting annular rings which positively guide the discs away from their seatings at the beginning of the opening movement to prevent sliding of the discs over their seatings. The two discs e are connected by links d to the actuating member c. Guide rings m, n are arranged on the casing and the discs, concentrically with packing rings h, and projecting beyond them. The discs are lifted from the seats at right-angles at the beginning of the upward movement of the member c, and are then guided vertically with the guide rings sliding on the faces of the guide rings of the casing, the packing surfaces being protected. In.a modified construction, Fig. 5, the guide rings m, n are provided with bevelled surfaces only. The guide rings may be arranged internally or externally of the packing rings, and the valves may be forced to their seats mechanically or by fluid pressure. Specification 219,312 is referred to.
Patent GB-410656-A (GB)
Title: Improvements in and relating to snap action electric switches
IPC: H01H13/28
Filed: 1933-08-21
Abstract: 410,656. Snap - action switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Goff, R. W.; 1138, North Dean Street, Schenectady, New York, U.S.A.) Aug. 21, 1933, No. 23264. Convention date, Aug. 20, 1932. [Class 38 (v).] A snap-action switch which may control the forward and reverse motions of electricallyoperated planing machines or the driving motor of lift bridges &c., comprises a contact-carrying shaft 15 carrying a cam 26 which comes to an apex 29 at one side and is curved at the other side 30, the two sides of the cams being respectively engaged by rollers on two links 33, 36 which are pressed towards each other by a telescopic spring arrangement 43. The links are pivoted at their left ends to a member 50 which can move about a pivot 51 a limited distance determined by a stop 54 engaging ears on the member 50. In the form shown the member 50 is adapted to be rotated either by a handle 83 on a member 80 fixed to the shaft 51 or by the movements, vertical to the paper, of cam shaped members 88, 89 on a planing machine, which members engage a roller 85 on an arm 86 on the member 80. When the roller 33 gets slightly beyond the apex 29 of the cam, its pressure on the cam causes this to rotate suddenly to move the shaft 15 and contacts into their other position. The purpose of the roller on the link 36 is by its frictional engagement with the cam to tend to rotate the cam so as to keep the contacts firmly closed until the roller on the link 33 has satisfactorily passed the apex 29. In a modification adapted for operation by a bridge, the link 33 has an extension carrying a roller which lies within a U-shaped member moved rectilinearly against a retractive spring by the bridge, and an additional spring is provided to take up excessive movement of the bridge.
Patent GB-1499294-A (GB)
Title: Manufacture of masks
IPC: G03F1/22
Filed: 1976-06-04
Abstract: 1499294 Thickened masks for use as originals INTERNATIONAL BUSINESS MACHINES CORP 4 June 1976 [30 June 1975] 23292/76 Heading G2X  A mask having an aspect ratio greater than one (i.e. thickness of masking material/width of finest mask detail >1) is made by (i) forming an initial mask on a substrate, Figs. 1A-1C, (ii) coating the mask with a radiation sensitive negative working resist, Fig. 1D, (iii) exposing the resist through the substrate, Fig. 1D, (iv) developing to remove the resist in the non- exposed areas i.e. those overlying the non-transmissive areas of the initial mask, Fig. 1E, and (v) depositing further masking material in the areas of removed resist, Fig. 1F. In this way a thickened mask is built up. The initial mask is formed by coating the substrate, 10 which carries a plating layer 12, with a positive resist 13, exposing the resist to an electron beam, developing and plating. Subsequent exposures through the substrate use x-rays or UV radiation. The substrate may be polyethylene terephthalate, Be, Si 3 N 4 , SiO 2 , Si, Al 2 O 3 , B 4 C, BN, C or B 2 O 3 ; the plating layer Au, Pt, Cu or NiFe; and the masking material Au, Cu or Pt. The layers of resist which build up on the mask and the plating layer may be optionally removed when the desired mask thickness is achieved, Fig. 1G.
Patent GB-887284-A (GB)
Title: Emulsifying compositions
IPC: C09K23/00
Filed: 1958-07-21
Abstract: 887,284. Biocidal compositions. FARBENFABRIKEN BAYER A.G. July 21, 1958 [July 25, 1957], No. 23368/58. Class 81 (1). [Also in Groups III and IV (b)] An emulsifying composition comprises a polyglycol ether of a phenol substituted with a hydrocarbon radical and a salt of a sulphonic acid of a phenol which is etherified and substituted with a hydrocarbon radical. It is expedient to use phenol polyglycol ethers substituted by hydrocarbon radicals in which the polyglycol ether radical and the hydrocarbon radical are adjusted to one another, e.g. in the case of a substitution by hydrocarbon radicals having up to about 10 carbon atoms, 8-10 hydroxyalkyl groups. Polyglycol ethers of phenols substituted by hydrocarbon radicals are obtainable by reacting phenols which are substituted by aliphatic, cycloaliphatic aromatic or aromatic/aliphatic hydrocarbon radicals with alkylene oxides, such as ethylene oxide and/or propylene oxide or butylene oxide. Preferably those polyglycol ethers are to be considered which are obtainable by alkoxylating condensation products from phenol or hydroxydiphenyl with styrene, a methyl-styrene, vinyltoluene or divinylbenzene in the presence of alkaline catalysts, for example as described in Specification 854,952. For the etherification of salts of sulphonic acids of phenols aliphatic alcohols, particularly those containing up to 8 carbon atoms methanol, ethanol, aromatic alcohols and phenols, as well as the substitution products of these compounds, such as 2-chloroethanol are used. For the substitution with hydrocarbon radicals of the sulphonic acids of the phenol ethers, alkyl, cycloalkyl, aryl and aralkyl radicals are used; they preferably contain at least 6 carbon atoms each in the case of a mono-substitution and at least 4 carbon atoms each in the case of a disubstitution. Suitable phenols on which the sulphonic acids may be based are, for example, diisobutyl, nonyl, dinonyl, isododecyl and oleylphenol, as well as isohexylxylenol, di- and triphenyl ethylphenol, phenylethyl pryocatechol, iso-octyl-resorcinol and isohexyl naphthol. As salts in addition to alkali metal, ammonium salts and salts of organic bases, calcium or magnesium salts may be used. Solvents which may be used for mixing these two components of the composition should be readily volatile, e.g. alcohols, ketones and mixtures of say methanol with toluene or xylene. The compositions are particularly used for biocides which are based on phosphoric or thiophosphoric acids and the exemplified are p-nitrophenyl-thiophosphoric acid diethyl ester and the dimethyl ester.
Patent GB-439031-A (GB)
Title: Independent front wheel springing system
IPC: B60G3/01
Filed: 1935-08-20
Abstract: 439,031. Vehicle spring - suspensions. SOPER, J. F., Te Houka, Balclutha, Otago, New Zealand. Aug. 20, 1935, No. 23369. [Class 108 (ii)] An independent front wheel spring - suspension comprises a fixed axle beam 11 to each end of which is pivoted at 12 a triangular box-section member 5. This member has secured to its upper and lower plates 6, 7 cranked bridge members 1, 2, the projecting arms of which are connected by tubular guides 22 and bolts 23. Brackets 26 secured to the brake anchorage plate 27 are provided with sleeves 32 adapted to slide on the guides 22 while between the bracket 26 and the upper cranked bridge member 1 is interposed a helical spring 42 a telescopic tube 36 being provided to prevent access of dust and grit. Between the bracket 26 and the lower bridge member 2 is arranged a volute spring 39 while a shock absorber 43 is arranged with its upper arm 44 pivoted to a bracket 46 secured to the brake plate 27 and with its lower arm 47 pivoted to the box member 5. The steering arm 58 is shown on the lower bridge member so that upward and downward movements of the wheel 51 do not affect the steering.
Patent GB-1016009-A (GB)
Title: Improvements in or relating to internal combustion engines of the direct injection type
Inventor: HALLBERG IRVING HARRY
IPC: F02M69/00
Filed: 1962-10-30
Abstract: 1,016,009. Combustion chambers. BORGWARNER CORPORATION. Oct. 30, 1962, No. 23383/65. Divided out of 1,016,008. Heading FIB. A ridge 87 on the piston divides the combustion space at top dead centre into an ignition chamber 86, containing spark plug 18, and a main chamber 90. A variable quantity injector 84 injects during the intake stroke or beginning of compression stroke to form a lean mixture in space 90 and a constant quantity ejecter 85 produces a richer mixture in chamber 86 at top dead centre.
Patent GB-461639-A (GB)
Title: Improvements in or relating to electric welding apparatus
IPC: B23K9/10
Filed: 1935-08-20
Abstract: 461,639. Regulating switches. FALCONER, J. L., and HOLMES & CO., Ltd., J. H. Aug. 20, 1935, No. 23386. [Class 38 (v)] The current to the electrode of an electric welding apparatus is regulated by means of a multi-position selector switch 21 which is either fixed to the electrode 36 or connected to it by a short cable, the selector switch being connected with the regulating resistances 34 by means of a multicore cable 35 or series of cables. The selector switch may be strapped to the body of the operator and serves to connect one or more selected resistances to a fixed contact 27 connected to the electrode. In the form shown in Fig. 1, the selector switch is operated by a ring 13 which may be both rotated and moved longitudinally into a series of positions determined by a spring-pressed plunger 18 entering notches in the casing. Suitably placed cam-surfaces witin the ring cause balls 14 to depress one or more contacts 6, controlled by springs 9 and connected to the resistances, into engagement with a central rod 2 connected to the electrode. In a modification, Figs. 3-5 (not shown) the selector switch comprises a series of cam discs mounted on a shaft operable by a turn-knob outside the casing, the cam discs pressing one or more spring-mounted contacts against a bus-bar.
Patent GB-1410754-A (GB)
Title: Preparation of acetophenone
IPC: C07B61/00
Filed: 1974-05-24
Abstract: 1410754 Production of acetophenone RHONE-POULENC SA 24 May 1974 [28 May 1973] 23414/74 Heading C2C Acetophenone is produced by decomposing cumene hydroperoxide in a reaction medium containing water, a copper containing catalyst, e.g. cupric sulphate, cupric nitrate, cupric perchlorate, cupric chloride, cupric bromide, cupric acetate, cupric propionate, or cupric butyrate and alpha-methyl styrene or dimethylphenyl carbinol.
Patent GB-155647-A (GB)
Title: Improved combination gauging tool
IPC: B25H7/04
Filed: 1919-09-23
Abstract: 155,647. Garratt, S., Barren, G., and Garratt, A. Sept. 23, 1919. Bevels.-In a combination tool comprising a T-square and a cross-bar 12 adjustable laterally longitudinally and angularly on the blade 12 and adapted to be clamped in adjusted position by a screw 11 and nut 15, the bar 12 may be secured at one end to the blade 2 by passing the clamping screw 11 through a square hole 17 in the bar and through the slot 8 in the blade, and graduations 21, Fig. 4, are provided to that the bar can be set at definite angles to the blade.
Patent GB-298748-A (GB)
Title: Improvements in and relating to laundry plant
IPC: D06F95/00
Filed: 1927-09-06
Abstract: 298,748. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 6, 1927. Laundry systems and arrangements of apparatus and machines. - The various component machines of a laundry plant are arranged in proper sequence in the laundry cycle on different floors so that articles may progress by gravity from one machine to another. The washing- machines 8, 9, Fig. 1, are on the top floor and .are loaded from a table 1 by the device described in Specification 300,101 comprising conveyers 2, 4 and pocketted hoppers 6, 7 which are operated electrically. The washed articles are discharged down a shoot 10 to a hydro-extractor 11 arranged on the floor below, from which they pass by a shoot 12 to a drying tumbler 13 on a lower floor and thence by a shoot 14 to a receiving table 15, Fig. 2, on the ground floor on which the final drying, ironing and finishing plant and the collecting and wrapping tables are placed. The drying tumbler may be bye-passed. At the receiving table 15 on the ground floor the articles requiring further drying are placed on one or other of the conveyers 58, 69. Those articles carried on the conveyer 58 are carried through a drying chamber 61 by hooks on a conveyer 60 and are deposited in a bin 63; those) travelling by conveyer 69 are placed in perforated containers 71 and are passed through a dry tumbler 72, the articles then being removed and passed by a conveyer 74 to a bin 73 whilst the empty containers are returned by a track 75. Bulk work is passed from the table 15 direct to a bin 83 by a conveyer 82. Flat.work is passed from the table 15 through a flat-work ironer 67 to a table 68 from which articles that require hand-finishing are passed by a conveyer 90 to hand-ironing plant 88 and bin 93, the other articles passing by a conveyer 85 to a bin 86. At the table 15 wearing-apparel is placed in boxes which are put on a conveyer 95. At a stop 96 shirts are removed from the boxes and the neckbands and fronts ironed on machines 97, 98. From thence the shirts are carried by a conveyer 99 to a shirt-body ironing machine 100 and a folding table 101. The, box containing the remainder of the wearing-apparel passes to a second stop 96<a> where the remaining contents are removed and ironed on machines 102, and replaced in the box which is then passed to a third stop 103 where the shirts are replaced, the boxes then travelling to a bin 104. The articles are collected from the bins 83, 73, 86, 93, 63, 104 and are wrapped on a table 64. To equalize the varying capacities of the machines used at different stages, batteries of smaller-capacity machines may be arranged in parallel at one stage to feed the machines in a subsequent stage.
Patent GB-712745-A (GB)
Title: Improvements in or relating to the preparation of derivatives of organic amines
Inventor: HEYWOOD BASIL JASON
Filed: 1950-09-25
Abstract: A process for the preparation of N-dichloroacetyl derivatives of the type R5R6NCOCHCl2 and Cl2CHCONH-R7-NHCOCHCl2 comprises reacting with chloral cyanohydrin, or precursor therefor, in the presence of an acid binding agent, an amine of the type R5R6NH or NH2-R7-NH2 in which R5 and R6 are the same or different and may represent an alkyl, a hydroxyalkyl, a cycloalkyl or an aralkyl group, or together with the nitrogen atom to which they are attached may form a ring which may or may not contain another hetero atom and R5 may also represent a hydrogen atom (excluding the case where R5 represents a hydrogen atom and R6 represents the grouping <FORM:0712745/IV (b)/1> in which R1 and R2 are each a hydrogen atom or together constitute a -CHR4- group in which R4 represents a hydrogen atom or an alkyl group having not more than 4 carbon atoms or an aryl group and R3 represents a hydrogen atom or a nitro group), and wherein R7 is an alkane chain. The chloral cyanhydrin may first be treated with an acid-binding agent and the product so obtained used as the dichloracetylating agent.  As a precursor for chloral cyanhydrin may be used chloral or chloral hydrate ih the presence of an alkali metal cyanide catalyst. As acid-binding agents there may be used inorganic or tertiary organic bases, excess amine, or an excess of alkali metal p  cyanide catalyst.  When chloral cyanhydrin itself is used, organic bases, e.g. triethylamine, are preferred; with chloral or chloral hydrate, inorganic bases, e.g. calcium carbonate, magnesium oxide and sodium carbonate, are preferred.  Water, pyridine and dioxan are suitable solvents.  Reaction temperatures of 0 DEG  to 25 DEG  C. using chloral cyanhydrin itself, and 60 DEG  to 100 DEG  C. using chloral or chloral hydrate in the presence of a catalyst are preferred. In examples, there are prepared (1) 1-dichloracetamido-n-butane by reacting n-butylamine, sodium cyanide and chloral hydrate in the presence of calcium carbonate; (2) dichloracetamido-cyclohexane (a) similarly to (1) and (b) by reacting cyclohexylamine and chloral cyanhydrin in the presence of triethylamine; (3) b -dichloracetamido-ethanol, from ethanol, similarly to (1); (4) 1 : 6-bis-dichloracetamidohexane; and (5) N-dichloracetyl morpholine are prepared from 1 : 6-hexamethylene diamine and morpholine by the method of (2b); (6) 2-dichloracetamido-1-phenylpropane by reacting 2-amino-1-phenylpropane, chloral hydrate and potassium cyanide in the presence of (a) calcium carbonate, (b) magnesium oxide, (c) sodium carbonate, or by reacting the 2-amino-1-phenylpropane with chloral cyanhydrin in the presence of (d) sodium hydroxide, (e) sodium carbonate, (f) pyridine and sodium carbonate. Specification 692,265 is referred to.