baber/WOPTO huggingface dataset:
Patent GB-259723-A (GB)
Title: Improvements in mechanical devices for exhibiting advertisements
IPC: G09F11/24
Filed: 1925-08-29
Abstract: 259,723. Butler, H. A. Aug. 29, 1925. Prisms and like elements, oscillating. - In advertising devices comprising a series of parallel laths oscillated simultaneously to display their faces alternately, the laths comprise bars A, Fig. 4, over which are slipped flat tubes built up of strips T, S secured together at their edges. Perforated strengthening plates may be fitted on the ends of the tubes T, S to engage studs on the bars A. Paper may be mounted on a flexible foundation before being cut into the strips T, S, and the strips are preferably wide enough to overlap. The laths are oscillated through cranks on their ends actuated by cords J attached to pulleys G on two of the laths. The cords pass over pulleys K and are connected to pivoted levers L, N, which are in turn tilted by an arm R on a uniformly rotating wheel 0. The pulleys G are further coupled together by an endless belt H.
Patent GB-597029-A (GB)
Title: Controlled oxidation of paraffinic hydrocarbons and partially halogenated derivatives thereof
IPC: C07C45/33
Filed: 1943-12-28
Abstract: Oxygenated organic compounds are prepared by reacting a saturated aliphatic hydrocarbon containing at least two carbon atoms or the partially halogenated products thereof containing at least one replaceable hydrogen atom, with oxygen in the presence of a hydrogen halide at a temperature between 100 DEG  and 270 DEG  C. The products which may be obtained by the process are carboxylic acids, ketones and organic peroxides.  The preferred starting materials are propane, ethane or butane or their monohalides. Instead of oxygen or the hydrogen halide, substances which will yield these under the operating conditions may also be used.  In the examples, acetone, propionic acid and propyl bromide are obtained from propane; acetic acid and ethyl bromide from ethane; butyric acid, diacetyl and methyl ethyl ketone from n-butane, and acids, ketones and their bromine derivatives from ethyl and propyl bromides.  Samples have been furnished under Sect. 2 (5) of products prepared as follows: isobutane, oxygen and hydrogen bromide are reacted together in the molar ratio of (a) 8 : 8 : 1, giving tertiary butyl hydroperoxide; (b) 2 : 2 : 1, giving di-(tertiary butyl) peroxide, some tertiary butyl alcohol and other oxygenated compounds being also formed.
Patent GB-990415-A (GB)
Title: High temperature furnace
IPC: H05B3/66
Filed: 1961-06-16
Abstract: 990,415. Electric furnaces. UNITED STATES ATOMIC ENERGY COMMISSION. June 16, 1961 [June 27, 1960], No. 21797/61. Heading H5H. A high temperature electrical resistance furnace comprises a high temperature-resistant hollow muffle 10 having openings 31 therethrough, an isolated furnace chamber 32 in the interior of the muffle, at least one electrical resistance heating element 47 removably positioned in the interior of the muffle in heat transfer relationship to the furnace chamber and slidably extending through the openings beyond the exterior of the muffle and supply means 56 for providing an inert atmosphere in the muffle in surrounding relationship to the heating element whereby the atmosphere at least partially drains off from around the ends of the heating elements through the openings. The muffle is supported within a gas-tight casing 11 of sheet steel, and a number of heating elements are provided in equal circumferentially and radially spaced relationship to the furnace chamber. In a specific example adapted for operation up to 1850 C., the heating elements are of silicon carbide, the muffle is of graphite, the furnace chamber is of high density alumina and the inert gas nitrogen, argon or helium.
Patent GB-626710-A (GB)
Title: Improvements in electric discharge tubes, having a secondary-emission electrode
IPC: H01J43/02
Filed: 1946-07-23
Abstract: 626,710. Electron discharge apparatus. PHILIPS LAMPS, Ltd. July 23, 1946, No. 21889. Convention date, Feb. 15, 1943. [Class 39 (i)] In an electron discharge device having a secondary-emission electrode, the anode is curved with its convex side facing the secondary electrode in such manner that the distance between the anode and the secondary electrode decreases with an increase in distance from the primary cathode and the anode is not positioned between the primary cathode and the secondary electrode. Preferably, the secondary electrode is curved in the same sense as the anode. In a push-pull arrangement as shown, the secondary electrode 4 is common to both electrode systems 3, but has an active face 7 associated with each anode 5. The Specification as open to inspection under Sect. 91 states that the secondary electrode and the anodes may be so designed that they have circular symmetry about a common axis. This subject-matter does not appear in the Specification as accepted.
Patent GB-1178886-A (GB)
Title: Method of Manufacturing Seat Cushions by Moulding
IPC: B29C44/12
Filed: 1967-05-11
Abstract: 1,178,886. Cushions &c. REGIE NATIONALE DES USINES RENAULT. 11 May, 1967 [6 July, 1966], No. 22024/67. Heading A4M. [Also in Division B5] A seat cushion (shown inverted in a mould) comprises a block of foam 16 and a piece of textile fabric 11 adhering to the top of the foam, the edges of the textile fabric being turned in and attached to a fixing strip of a flexible beading 6. The textile material may be sewn to the fixing strip and the two are buried in the foam. The sides of the cushion 9 are an elastomeric skin integral with the foam which is preferably a polyurethane.
Patent GB-801412-A (GB)
Title: Improvements in the preparation of polyalkylene terephthalates
IPC: C08G63/78
Filed: 1956-07-17
Abstract: A polyalkylene terephthalate is made by heating a glycol of formula HO-(CH2)nOH (where n=2-10) with a terephthalic acid anhydride or derivative thereof having the formula <FORM:0801412/IV (a)/1> where R is a hydroxyl group, a chlorine atom or or an acyloxy group and R1 is an acyl, p-carbonylbenzoic acid, p-carbonylbenzoic acid ethyl ester or p-carbonylbenzoic chloride group and X is 1-100.  The derivative may be (1) a mixed anhydride of terephthalic acid of formula <FORM:0801412/IV (a)/2> where n=1-4 (obtained by reacting terephthalic acid with the anhydride of a fatty acid): (2) diterephthalic anhydride or a mixed anhydride of acetic and terephthalic acid of formula <FORM:0801412/IV (a)/3> (obtained by oxidizing the anhydride of p-methyl benzoic acid); or (3) a polyterephthalic anhydride of formula <FORM:0801412/IV (a)/4> (obtained by treating diterephthaloyl chloride with a stoichiometric equivalent or water or alkali followed by spontaneous polymerization).  Reaction between the glycol and the terephthalic anhydride (or derivative) may be effected in presence of antimony oxide and preferably the latter part of the reaction is effected in vacuo and a current of an inert gas. Specifications 578,079, 590,451, [both in Group IV], and 630,992 are referred to.ALSO:The Specification describes the preparation of the following compounds: (1) a mixed anhydride of terephthalic acid of formula: <FORM:0801412/IV (b)/1> where n=1-4 and X=1-100 and R is an -OH group, or <FORM:0801412/IV (b)/2> obtained by heating terephthalic acid with the anhydride of a lower fatty acid; (2) a mixture of diterephthalic acid anhydride and mixed anhydrides of acetic and terephthalic acid of the formul : <FORM:0801412/IV (b)/3> and <FORM:0801412/IV (b)/4> which is obtained by dissolving the anhydride of p-methyl benzoic acid in acetic anhydride, adding cobalt acetate, and passing a stream of oxygen through the boiling reaction mixture while continuously distilling off liquid.  By boiling the product with water, pure diterephthalic anhydride is obtained, whilst by adding further acetic anhydride during the distillation the pure mixed anhydride is obtained; (3) a polyterephthalic acid anhydride of formula: <FORM:0801412/IV (b)/5> which is obtained by adding water or a mixture of water and pyridine to terephthalic acid dichloride dissolved in dioxane, allowing an exothermic reaction to take place, adding further dioxane and boiling the reaction mixture; (4) the anhydride of p-methyl benzoic acid which is made by heating p-methyl benzoic acid with acetic anhydride.  Specifications 578,079, 590,451, [both in Group IV], and 630,992, [Group IV (a)] are referred to.
Patent GB-878578-A (GB)
Title: Process for and apparatus for low-temperature separation of air
Inventor: POTTS LAWRENCE DONALD
IPC: F25J3/04
Filed: 1959-06-26
Abstract: 878,578. Cold separation of air. UNION CARBIDE CORPORATION. June 26, 1959 No. 22103/59. Class 8(2). In a two-stage air rectification process minor and major proportions of feed air are compressed at 11, 18, Fig. 1, respectively to about the operating pressures of columns 45, 35, cooled in oxygen and nitrogen regenerators 13, 19 and the major air stream is fed to the high pressure column 35 and separated into crude liquid oxygen and nitrogen which are throttled at valves 58b, 70 and fed to the low pressure column for separation therein together with the cold minor air stream. In operation the cold minor air stream in a duct 32 is freed of remaining condensible impurities by scrubbing with liquid air at 33, the uncondensed part being warmed in a coil 39 by bleed-off air from the nitrogen regenerator 19 before being expanded in a turbine 44 and fed to the column 45 whereas the liquid from scrubber 33 is passed through filters 49 and absorbers 53 before being fed to column 45. Reflux for the high pressure column 35 is obtained by passing product liquid oxygen from the base of the low pressure column through a duct 76 and coil 78 within column 35 resulting in vaporization of the oxygen and further reflux is obtained, by condensing gas from column 35 by means of cold product nitrogen gas traversing a coil 64 ; the so-condensed liquid being returned to column 35 through a duct 62. Extra cold is provided by warming air taken from column 35 in a duct 58c and coil 59, expanding it in a turbine 61 and feeding it to column 45. In a modification no work expansion occurs and extra cold is obtained by passing liquid oxygen from a reservoir 301, Fig. 3, through a coil 278 within the high pressure column 235 and through which is passed liquid oxygen leaving the base of the low pressure column 245 through a duct 276. Impurities are removed from the major air stream leaving the cold end of nitrogen regenerator 219 by an adsorption trap 297 and a minor portion of returning nitrogen is bled from a duct 224, through coils 290 thereby providing uncontaminated product nitrogen in a duct 290a.
Patent GB-461185-A (GB)
Title: Improved manufacture of bases derived from ª‡-aminopyridine
IPC: C07D213/74
Filed: 1935-08-06
Abstract: Nitro derivatives of pyridine compounds substituted in the 2-position with a group --NHR, where R is a non-reduced homocyclic or heterocyclic radicle, are treated with hydrogen under pressure in the presence of a hydrogenation catalyst, whereby reduction of the nitro group or groups is effected and amino compounds are obtained.  In the examples, (1) 5-nitro-2 : 2<1>-dipyridylamine is treated with hydrogen at 50 DEG  C. and 10--15 atm. pressure in the presence of platinic oxide, or of palladium on charcoal; the base obtained is isolated by way of its hydrochloride; (2) a mixture of 3 : 3<1>- and 3 : 5<1>-dinitro-2 : 2<1>-dipyridylamine, obtained by nitrating 2 : 2<1>-dipyridylamine, is reduced as in example 1; the hydrochlorides of the products are separable by virtue of their different solubilities; (3) 2<1> : 4<1>-dinitrophenyl-2-aminopyridine (from 2-aminopyridine and 1-chloro-2 : 4-dinitrobenzene) is treated with hydrogen at 50 DEG  C. and 3-5 atm. pressure in the presence of a catalyst specified in example 1; the condensation product of 5-amino-2 : 2<1>-dipyridylamine with 1-chloro-2 : 4-dinitrobenzene may be similarly treated.  The provisional Specification refers to (1) the production of 2 : 2<1>-dipyridylamine by heating 2-aminopyridine with its hydrochloride for 6-7 hours; (2) the production of 5-nitro-2 : 2<1>-dipyridylamine by nitrating 2 : 2<1>-dipyridylamine and by condensing 2-aminopyridine with 2-chloro-5-nitropyridine; (3) the production of 5 : 5<1>-dinitro-2 : 2<1>-dipyridylamine by condensing 2-chloro-5-nitropyridine with 2-amino-5-nitropyridine; (4) the conversion of 5-amino-2 : 2<1>-dipyridylamine into its acetyl, phenylcarbamino and xenylcarbamino derivatives; (5) the production of 5 : 5<1>-diamino-2 : 2<1>-dipyridylamine by reducing the corresponding dinitro compound.ALSO:Nitro derivatives of pyridine compounds substituted in the 2-position with a group --NHR, where R is a non-reduced homocyclic or heterocyclic radicle, are treated with hydrogen under pressure in the presence of a hydrogenation catalyst, whereby reduction of the nitro group or groups is effected and amino compounds are obtained.  In the examples, (1) 5-nitro-2 : 2<1>-dipyridylamine is treated with hydrogen at 50 DEG  C. and 10--15 atm. pressure in the presence of platinic oxide, or of palladium on charcoal; (2) a mixture of 3 : 3<1>-and 3 : 5<1>-dinitro-2 : 2<1>-dipyridylamine is reduced as in example 1; the hydrochloride of the products are separable by virtue of their different solubilities; (3) 2<1> : 4<1>-dinitrophenyl2-aminopyridine is treated with hydrogen at 50 DEG  C. and 3--5 atm. pressure in the presence of a catalyst specified in example 1; the condensation product of 5-amino-2 : 2<1>-dipyridylamine with 1-chloro-2 : 4-dinitro benzene may be similarly treated.  The Provisional Specification refers to the production of 5 : 5<1>-diamino-2 : 2<1>-dipyridylamine by reducing the corresponding dinitro compound.
Patent GB-615211-A (GB)
Title: Process for quickly manufacturing hollow metallic or non-metallic bodies, means for carrying out this process and hollow bodies resulting therefrom
IPC: B64C3/00
Filed: 1945-08-28
Abstract: 615,211. Felt. LA FOURNIERE, M. M. P. R. DE. Aug. 28, 1945, Nos. 22162 and 22163. Convention dates, May 16, 1944, and Oct. 18, 1944. [Class 42(ii)] [Also in Groups V and XXII] A hollow body, e.g. a float, tank, propeller or wing &c. of an aircraft is made by blowing felt, wool, cotton &c. in comminuted form to produce a layer 13 on a rigid former F in which is incorporated strengthening members such as 7, 8, 9, 10 which form part of said body when the wedges 12 and the pieces 1-6 of the former have been removed. The members 7-10 may have blind holes 15 or be roughened to fix the coating 13. The coating may vary in thickness and comprise a number of layers of different materials. The former F may be precoated with paper, cloth or a liquid or pasty product to prevent sticking. The templet may consist of a single member made of material such that it can be destroyed by mechanical, physical or chemical means. The former F and blower may be given relative movements automatically. The Specification, as open to inspection under Sect. 91, comprises making a body by blowing into a concave former. This subject-matter does not appear in the Specification as accepted.
Patent GB-1018484-A (GB)
Title: Improvements in devices for securing foxing strips to shoes
IPC: A43D43/06
Filed: 1964-05-28
Abstract: 1,018,484. Boots &c. H. WILISCH. May 28, 1964 [May 28, 1963], No. 22183/64. Heading A3B. Apparatus for pressing a foxing strip against the edge of the sole and the lower margin of the upper of a shoe, to secure it by means of an intermediate bonding medium, comprises a shoe support 1, a wall A which surrounds and is spaced from at least the greater part of the shoe and one or more inflatable pressure cushions b1 which press the foxing strip against the shoe. The pressure cushion b1 consists of a rubber or plastics tubing enclosed in a leather or plastics casing and is attached to the wall A along its top edge only (Fig. 3a) or along both the bottom and top edge. The cushion b may entirely surround the shoe (Fig. 1 not shown) and resilient spacing pieces 5 (Fig. 4 not shown) may be inserted between the cushion b to compensate for shoes of a smaller size. The shaping piece may be stepped (not shown) and movable heightwise in the machine to accommodate a range of sizes of shoes. Alternatively the cushion may not enclose one or both ends of the shoe (Fig. 7 not shown) and a shaping piece 7 carried by a pneumatic piston and cylinder 12 presses the foxing strip against the toe and/or heel of the shoe. The shoe may be supported on an adjustable support (Fig. 3a) or the shoe may be clamped against an inflatable cushion (not shown) which applies pressure to the sole.
Patent GB-663830-A (GB)
Title: Improvements in or relating to velocity-modulation systems and discharge tubes therefore
IPC: H01J25/32
Filed: 1947-08-11
Abstract: 663,830. Velocity-modulated tubes. PHILIPS ELECTRICAL, Ltd. Aug. 11, 1947 [Aug. 14, 1946], No. 22224/47. Addition to 645,937. Class 39 (i). In a velocity modulation device for generating or amplifying ultrahigh - frequency oscillations in which the beam is velocity - modulated by a control electrode system, the velocity modulation is converted into density modulation by a brake field electrode which causes the beam to retraverse the system, in which the beam is then again reversed by a second brake field electrode so as to traverse the system a third time, and in which a double grid surrounding an equipotential space is arranged between the control electrode system and the brake field electrode more remote from the cathode, as set forth in the parent Specification, the control electrode system comprises four parallel electrodes 6, 4, 5, 7, so connected and arranged as to form a single electric resonator supporting standing waves. In the drawing, 3 and 9 are the brake field electrodes, and electrode 3 also serves to form the beam. The electrodes 6, 4; 5, 7 form two quarter-wave resonators and are shorted at one edge by a plate, Fig. 1 (not shown), so as to form a half-wave Lecher system with a voltage node at the plate; electrodes 6, 5 and 4, 7 are connected by wires 14, 15 so that 6, 4; 5, 7 oscillate in anti-phase. Electrode 10 carrying the double grid and brake field electrode 3 are joined by plates 11, 12 so as to form a rectangular box preventing the escape of energy from the oscillating system. The output is taken from two strips forming part of a Lecher line sealed through the envelope and capacitatively coupled to electrodes 4, 5. The Specification as open to inspection under Sect. 91 refers to the provision of a magnetic focusing field. The electrodes of the control system are formed as strips. This subjectmatter does not appear in the Specification as accepted.
Patent GB-966364-A (GB)
Title: Multiple stage telescopic cylinders
IPC: F15B15/16
Filed: 1963-06-05
Abstract: 966,364. Telescopic rams. COMMERCIAL SHEARING & STAMPING CO. June 5, 1963 [June 25,1962], No. 22331/63. Heading F1P. In a multistage telescoping cylinder unit comprising a plurality of concentric cylinders 12, 13, 14, 11 and a piston member 10 slidable in the smallest cylinder 11, the cylinders are continuously urged into the telescoped position by fluid under pressure admitted to the annular spaces 13a, 14a, 11a, 21 between the walls of adjacent cylinders, and control means such as a valve (Fig. 5 not shown) operative to deliver fluid under pressure to the smallest cylinder and/or the other cylinders to thereby extend the piston 10 and/or the cylinders against the continuously applied urge. The piston member 10 is provided with three inlets 18, 25 and 30. The inlet 18 communicates fluid under pressure to the annular spaces between the cylinders through an annular passage 19 and radial passages 20, 11b, 11c, 14b, 14c, 13b, 13c. The inlet 25 communicates fluid under pressure via an axial duct 26 to a space 27 within the cylinders and the inlet 30 communicates fluid under pressure to a space 33 between the smallest cylinder and the piston member 10.
Patent GB-990480-A (GB)
Title: Improvements in and relating to the measurement of animal flesh
IPC: G01B7/06
Filed: 1962-06-08
Abstract: 990,480. Electric tests. FOSTER INSTRUMENT CO. Ltd., and W. H. GURNEY. April 26, 1963 [June 8, 1962], No. 22340/62. Heading G1N. A probe for measuring the resistance of layers in a carcase and thus determining the thickness of the fat and the lean meat comprises an elongated probe having two electrode surfaces and a circuit which gives an indication of the resistance between the two electrode surfaces. As shown in Fig. 1 the probe comprises an inner metal member 10 which is formed at its end with a wider portion 11 carrying blades 12 to allow insertion into a carcase. A second electrode is formed by a metal sleeve 16 again having a thicker end portion 16a. The two electrode surfaces 16a and 11 are separated by a P.T.F.E. bush 13, 13a and fibre insulating sleeves 14 and 15. The thinner part of the sleeve 16 is insulated by a P.T.F.E. sleeve 17. As shown in Fig. 4 the probe has a handle containing a cell 21 and ammeter 20. The adjustable sleeve 23 is moved adjacent the surface of the carcase to give an indication of the depth of penetration on scale 24. Alternatively a feeler using a rack and pinion may be used for the same purpose. It is stated that the measuring circuit may include a bridge circuit.
Patent GB-1356092-A (GB)
Title: Modular room dividers
IPC: A47G5/00
Filed: 1972-05-12
Abstract: 1356092 Furniture screens; separate feet REFLECTOR-HARDWARE CORP 12 May 1972 22390/72 Heading A4U A room divider comprises a number of interconnected panels e.g. 70, wherein the interconnecting means comprises at each end of each panel two pairs of coupling members, e. g. 100, one of each pair adjacent each face, there being an upper pair and a lower pair at each end, the reception pairs being horizontally aligned. In the embodiment shown, said coupling members comprise spigots 100 and sockets 110, allowing panels to be fixed in line, Fig. 7 (not shown), or in a cross, or to be pivotally inter-connected, Figs. 8, 9 (not shown). The coupling members may be on the panel or on tubular end members 90, as shown, fixed to the panel. Edge strips 80 may be set in grooves 79 at the upper and lower panel edges, end-caps 99 in the end members, screwed feet 130 in the lower endcaps, base-plates in the end members Fig. 12, (not shown), and divider end members at the edge of the divider, Figs. 11, 14, (not shown). The tubular end members 90 have edge slots 95 for fixing furnishings, and fixing holes 97, 98.