baber/WOPTO huggingface dataset:
Patent GB-573429-A (GB)
Title: Improvements in or relating to magazines for fire arms
IPC: F41A9/67
Filed: 1940-12-31
Abstract: 573,429. Automatic smallarms. VESELY, J. Dec. 31, 1940, Nos. 18259/40 and 7628/41. [Class 119] A magazine particularly for automatic guns has two or more cartridge compartments of box or drum form arranged one behind the other in the longitudinal direction of the cartridges, and retaining means to prevent cartridges emerging from a rear compartment until all the cartridges have been removed from the preceding compartment. The feed from a rear compartment is effected without displacing the compartment. In the form shown as applied to a magazine of the depending-box type, the cartridges are arranged in double rows in two compartments 5, 6, one behind the other, and a detent 16 pivoted to the gun casing holds the uppermost cartridge in the rear compartment 6 out of the path of the breech-block until all the cartridges in the compartment 5 have been inserted in the gun chamber by the breech-block. The platform 7 of the compartment 5 carries a spring plunger 9 which is projected into engagement with the arm 17 of the detent 16 to release the cartridges in the compartment 6 only when the platform 7 occupies its fully-raised position under the action of its spring 8. The breech-block then removes the cartridges one by one from the compartment 6. The wall 11 of the compartment 6 is inclined as shown to guide the cartridges upwards in a single row to the outlet, which registers for guiding purposes with the upper part of the platform 7.
Patent GB-802597-A (GB)
Title: Improvements in or relating to apparatus for controlling and adjusting the capacitance of electrically insulated conductors
IPC: G01R27/16
Filed: 1956-06-13
Abstract: 802,597. Automatic control systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 13, 1956 [June 13, 1955], No. 18337/56. Class 38 (4). [Also in Group XXV] In a system in which an electrical conductor having insulating material spirally wound thereon is continuously supplied from means rotatable about an axis coaxial with the length of conductor, the capacity of the conductor is automatically controlled by rotation of the supply means to alter the tightness of the insulation in accordance with the capacity of the supplied conductor. In Fig. 1, a conductor 15 having spirally-applied paper insulation is drawn from a reel 1 and led over a sling 30 which is rotated by a gear 36 so that conductor 15 is twisted round a second paper insulated conductor 25 drawn from a reel 2 to form a twin cable to which screening may be applied if desired, and which is wound up on a take-up reel (not shown). Connections are made to the ends of the cable through slip rings on the takeup reel and, as shown in Fig. 2, inequality of the capacities between each conductor and the screen 203 (which may only be a short length through which the cable passes if the cable is to be unscreened) unbalances an A.C. bridge circuit, the output of which is applied through an amplifier 204, phase-sensitive rectifier 205 and relays 206, 207 so that, according to the sense of unbalance, one or other of oppositely rotatable motors 214, 215 is intermittently connected to a source 208 by means 211. A shaft 216 thus rotates to operate, through a worm gear 306, Fig. 3, a valve 305 controlling hydraulic motors 305A, 306A associated with a differential gear 315 rotating gear wheels 312, 314 coupled to gear wheels 16, 26, Fig. 1, so that reels 1 and 2 are rotated in opposite directions. This rotation tightens the insulation on one conductor and loosens it on the other so as to correct the unbalance of the capacities. In a modification, Fig. 4 (not shown), using a similar combined electric, hydraulic and mechanical servomechanism, the capacity per unit length of the cable is maintained constant by rotating both reels 1 and 2 in one direction or the other in dependence on the difference between the change in capacity of the cable accumulating on the take-up reel and the change of a capacity varied in synchronism with production of the cable. In a further modification capacity unbalance and variation of capacity per unit length of the cable simultaneously control the rotation of reels 1 and 2 through a system of four differential gears.
Patent GB-941658-A (GB)
Title: Improved hydrocarbon binder compositions
IPC: C08K5/17
Filed: 1961-05-19
Abstract: A coating composition comprises a bitumen or tar binder and from 0.1 to 10% by weight based on the binder of an amino acid of the formula R(NHR1)nCOOH, wherein n is less than five, R and R1 are C1-C25 hydrocarbon groups and R1 may be different from one NHR1 group to another; or a salt of such an amino acid.  The composition and its aqueous emulsions are used as coating compositions for mineral aggregates for road-making, for coating metal sheets or pipes which are to be buried, and can be used in anti-corrosive paints based on bitumen or tars. The aqueous emulsions may be neutral, acidic, or basic. When acidic, the aqueous phase may contain 0.15-1.5% by weight, based on the bitumen phase, of a mineral acid, and when basic, the aqueous phase may contain 0.02-1%, based on the bitumen phase, of caustic soda or caustic potash.ALSO:A composition comprises a bitumen or tar binder and from 0,1 to 10% by weight based on the binder of an amino acid of general formula R(NHR1)nCOOH wherein n is an integer of less than 5; R and R1 are C1-C25 hydrocarbon groups and R1 may be different from one (NHR1) group to another, or a salt of such an amino acid.  This salt may be obtained by the reaction of the amino acid with (i) a strong base eg. NaOH, (ii) a mineral acid or a carboxylic, preferably a C1-C3, acid or by neutralizing a mineral acid salt obtained in (ii) with a strong base.  A mixture of such amino acids and/or their salts may be used in the composition.  This composition and its aqueous emulsions are used, for example, as coating compositions for mineral aggregates for road-making, for coating metal sheets or pipes which are to be buried, and can be used in anti-corrosive paints based on bitumen or tars.  The aqueous emulsions may be neutral, acidic, or basic.  When acidic, the aqueous phase may contain 0,15-1,5% by weight based on the bitumen phase of a mineral acid, and when basic, the aqueous phase may contain 0,02-1% by weight based on the bitumen phase of caustic soda or caustic potash.
Patent GB-804163-A (GB)
Title: Filters, and water purification plants employing filters
Inventor: HEPBURN DUGALD
IPC: B01D29/01
Filed: 1955-06-24
Abstract: 804,163. Filters. SUDAN GEZIRA BOARD. June 22, 1956 [June 24, 1955], No. 18365/55. Class 46. A filter unit comprises a deep vessel 10 having an inlet 11 and outlet 12, both near the top of the vessel, separated by a porous filter screen 13, such as finely porous polyvinyl chloride sheet. Water enters through inlet 11 and jets 14 to the underside of the screen 13, which is inclined to the direction of flow so that the incoming water helps to dislodge residue on the screen. Filtrate passing through the screen leaves by the outlet 12 which is connected to a single acting pump, the pump being arranged to discharge a small amount of the filtrate back through the filter during its pumping stroke to backwash the screen 13. The filter may be used in connection with a water purification system where water is drawn from a canal or river to a settling basin and from where it passes through a filter of the above type and then to a polarizing purifier, for example of the ionic silver type of sterilizer, and thence to a storage tank.
Patent GB-109368-A (GB)
Title: Improvements in Mouthpieces and Doors for Retorts.
Inventor: GLOVER SAMUEL
IPC: C10B25/08
Filed: 1916-12-22
Abstract: 109,368. Glover, S., West, J., and Wild, W. Dec. 22, 1916. Retort doors. -Relates to doors and mouthpieces of vertical and other retorts. The mouthpiece a has its face b inclined and the door c, which is shaped to collect liquid, is secured by a swinging link d. The door has a cross bar e, which rides on two projecting arms f and is secured by swinging catches g, one of which is mounted on an eccentric pin having a handle j for drawing up the door tightly against the face b, which may be provided with packing. The door may have a lip k, Fig. 3, for protecting the edge from falling coke &c.
Patent GB-1278167-A (GB)
Title: Process for the continous production of polyamide foams
Inventor: SCHNEIDER KURT
IPC: B29C44/28
Filed: 1970-04-17
Abstract: 1278167 Polyamide foams FARBENFABRIKEN BAYER AG 17 April 1970 [19 April 1969] 18435/70 Heading C3C A polyamide foam is made continuously by applying an anionically polymerizable and foamable mixture of at least one lactam, catalyst, and activator which may also function as a blowing agent, to a moving supporting film, then heating the mixture on the film to the polymerization temperature to polymerize and foam the mixture and the polyamide formed is removed from the film. In the example a mixture of caprolactam, sodium borohydride, hexamethylene diisocyanate, and a silicone is polymerized and foamed on a film supplied by roller (4) on to conveyer belt (1) by means of heat supplied in cupboard (6); the foam is removed by (7) and may be shaped at (8) by sawing, cutting or planing.
Patent GB-695721-A (GB)
Title: Improvements in or relating to stockings and supports therefor
IPC: A41F11/04
Filed: 1950-07-24
Abstract: 695,721. Attaching articles to the person; hose suspenders. HESS, W. July 24, 1950 [July 23, 1949], No. 18449/50. Classes 43 and 141. [Also in Group XXV] A stocking is provided, near its open end, with a suction fastener or fasteners adapted to be attached directly to the leg of the wearer. The suction fastener consists of a slightly curved cap or disc 1 of light, soft, and flexible rubber or rubber-like material which, in one form, Fig. 1, has an integral button 6 to engage within a button-hole provided at the top of a stocking. Alternatively, a portion 8, Fig. 4, of a bachelor's button may be vulcanised into the body 1 to engage a co-operating portion at the hem of a stocking. The sealing edge of the suction fastener may be thickened or rounded and either made of a material that adheres to the leg, or provided with a layer of relatively softer material 7 such as para rubber. Metal discs may be provided on the inner and outer surfaces of the suction fasteners to assist them in resuming their normal shape when the pressure is relieved on applying them.
Patent GB-699578-A (GB)
Title: Shipping and display case for electric shavers and the like
Inventor: JEPSON IVAR
IPC: A45C11/24
Filed: 1950-07-24
Abstract: 699,578. Cases for electric shavers. SUNBEAM CORPORATION. July 24, 1950, No. 18485/50. Class 18 A casing for an electric shaver comprises a bowlshaped body 23, having a domed cover 34 hinged to the body by a pair of spaced tabs 37 on the cover projecting through slots 39 in the body, the tabs being curved to bear about beaded edges 41 of the slots to enable the cover to pivot open and closed. A plate 51 having curved portions 47 which bear on the outer side of the tabs 37 retains the hinge connection between the cover and body and is secured in position by a screw 54 after the tabs 37 have been engaged with the beaded edges 41. Grooves 48 are cut in the tabs 37 in which projections 46 from the portions 47 engage to limit the opening movement of the cover. The casing may be made of a synthetic resinous or other suitable material and is provided with a projection 56 on the edge of the cover opposite the tabs 37, the pliability of the material enables the cover to be distorted to enable the projection to be engaged or disengaged in a recess 58 in the body in closing or opening the cover. The outer wall. of the body 23 extends below the central bowl portion 31 so as to accommodate a reel 61 on which the electric cord 20 for the shaver is wound and in which recesses 67, 68 are formed for receiving the plugs 21, 22. The reel is retained within the body 23 by a finger operated spring urged plate 72 mounted in a central portion of the reel and apertured so as to engage a spigot 71 projecting from beneath the bowl portion 31. The spigot 71 is recessed at 69 so as to receive the plate 72 and thereby, retain the reel in position.
Patent GB-220002-A (GB)
Title: Improvements in or relating to machines for trimming the edges of lasted uppers
IPC: A43D49/00
Filed: 1924-08-02
Abstract: 220,002. United Shoe Machinery Corporation, (Assignees of Ballard, H. A.). Aug. 4, 1923, [Convention date]. Trimming.- An inseam-trimming machine comprises a concave work - supporting roll 1 adapted to engage the body of the shoe and having an edge 4 adapted to co-operate with a rotary annular knife 13. The roll 1 is rotated to feed the work by bevel gearing 11, and its upper margin 5 is concave so that it may make extended contact with the cutter. The shallow groove 5 is supplied with oil from a cup 19, and the groove is trued up as required by a grinding wheel 21, Fig. 6, which is substituted for the cutter for this operation. The wheel is provided with a face plate 26 corresponding to that on the knife and secured by the same means, screws 23, and a centering projection 24. The roll 1, Fig. 1, is provided with a supporting flange 7 in an oil chamber. To grind the cutter when required. a grinding wheel 27 on an arm pivoted at 31 is lowered by a screwed shaft 33 provided with a hand-wheel. An adjustable sole rest 35 bears on the insole. The cutter is vertically adjustable by a screw 17 when clamping screws 16, Fig. 6, are loosened.
Patent GB-185245-A (GB)
Abstract: 185,245. Setz, H. R. June 11, 1921. Regulating; valves. - Radial scavenging-air ports 3, Fig. 1, in a two-stroke engine are each. controlled by an automatic valve comprising a valve case 5, Fig. 4, furnished with metal strips 6 held in place by a wedge 10 and uncovering valve-ports 9 when the pressure in an aircontainer 4 exceeds that in the cylinder. Slides 7 permit of any port being cut off at will. The rows of ports 9 may be arranged to be vertical or horizontal, and the strips 6, lying loose over them in guides, may be returned after displacement by springs.
Patent GB-590698-A (GB)
Title: Process of coating hydrophilic sheets or films to render them waterproof, and the product produced
IPC: C08J7/052
Filed: 1944-09-28
Abstract: 590,698. Coated sheets. SYLVANIA INDUSTRIAL CORPORATION. Sept. 28, 1944, No. 18570. Convention date, Oct. 1, 1943. [Class 140] A hydrophilic sheet is provided with a waterresisting intermediate coating and then a moisture-proof top coating, the latter comprising a polymer of vinylidine chloride or a copolymer of vinylidine chloride and a minor proportion of vinyl chloride. The sheet may be composed of insolubilized gelatin, casein, cellulose, alkali soluble water-insoluble cellulose ether such as an alkyl, hydroxy-alkyl, or carboxy-alkyl cellulose ether, cellulose ester or ether of low degree of substitution, deacetylated chitin, glassine, paper, cardboard or textile fabric. It may be formed into a shape such as a web, band, tube or cup. The intermediate coating may result from an aqueous or organic solvent solution of a cellulose derivative, resin, oil, resin, rubber, rubber derivative or synthetic rubber, with waxes, blending agents and plasticisers. The substance " Saran " (R.T.M.) in solution in a solvent such as a warm mixture of toluene and dioxane or dioxane and methyl-ethyl ketone is preferred for the top coating, and waxes and slip agents may be included therein. The final product is heat-sealable.
Patent GB-1136613-A (GB)
Title: Improvements in or relating to the molding of articles from thermoplastic resin sheet material
IPC: B29C37/00
Filed: 1966-04-28
Abstract: 1,136,613. Sheet forming. H. SUDO. 28 April, 1966 [29 April, 1965; 12 Nov., 1965], No. 18596/66. Heading B5A. [Also in Division B8] In a vacuum and/or blow forming process, thermoplastic resinous sheet material is fed directly from an extruder to the forming apparatus and moulded whilst still hot. This ensures uniform heating of the sheet and alleviates undue local thinning of the article produced. Premature cooling of the sheet is prevented by preheating with an infra-red heater or by using heated forming tools or fluids. The sheet may be extruded downwardly, upwardly, horizontally or at an angle and may be stretched either by take off rolls or by moving the forming apparatus away from the extrusion die during the forming operation (see Fig. 9, not shown). In the embodiment shown in the Figure a sheet 2 is extruded downwards and vacuum or blow moulded between a female die 3 and a flat die 4. One or both of the dies carries sharp ridges 7 which partially penetrate the sheet to facilitate subsequent separation of the formed article from the excess sheet material, or which form hinge lines about which, e.g. an integrally formed lid may be pivoted (see Fig. 3, not shown). In an alternative embodiment (Figs. 5 and 6, not shown), the sheet is plunger assisted blow moulded, the ridges 7 also facilitating the forcing of the edges of the sheet into recesses (30) carried by either the male or female die to form flanged rims on the articles. In further embodiments the sheet is partially sucked into a female mould and then either applied to a male mould by vacuum or blowing, or applied temporarily to a plunger and then transferred to the cavity of the female mould.
Patent GB-596255-A (GB)
Title: Improvements in or relating to picnic boxes and analogous containers
IPC: A45C9/00
Filed: 1945-07-20
Abstract: 596,255. Furniture combinations. SINCLAIR, G. W. July 20, 1945, No. 18599. [Class 52(iii)] A container such as a picnic box is combined with a table so that on opening the container the table can be brought to operative position and rigidly supported by its legs. Fig. 2 shows a container 5 to the lid 6 of which a table top 10 is hinged the top 10 having an extension 13 slidably mounted thereon and having legs 14 pivoted thereto at 15 so that they. are foldable transversely to the extension. The lower extremities of the legs are rigidly held in sockets 16 or they may have a fitting 33, Fig. 5, provided with a tongue which is similar to the tongue carried by the lid and forming part of the container latch, the tongue being secured in position by the ordinary latch means such as the loop 30 controlled by the latch lever 28.
Patent GB-330149-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/258
Filed: 1929-06-17
Abstract: 330,149. Muirhead & Co., Ltd., and Muirhead, A. L. June 17, 1929. Condensers.-A condenser utilizing a number of dielectric substances incorporated so that the condenser has a desired small temperature-coefficient for capacity has gum-mastic as one of the substances. Resin may also be added. One method of utilization comprises coating the foilplates with gum-mastic and the dielectric sheets with paraffin wax. Paper dielectric sheets may be soaked in a mixture incorporating gum-mastic and paraffin. Another coating mixture may comprise paraffin-wax, gum-mastic and resin in which the mastic comprises 7-15 per cent of the total when used with paper dielectric and 5-10 per cent when used with mica dielectric or in which the mastic comprises 3-12 per cent and resin 2-10 per cent of the total. Specification 1626/12 is referred to.
Patent GB-277628-A (GB)
Title: Improved process for the manufacture of stable solutions of peroxides, persalts and peracids
IPC: D06L4/12
Filed: 1927-07-13
Abstract: 277,628. Oesterreichische Chemische Werke Ges. Sept. 16, 1926, [Convention date]. Hydrogen peroxide; persulphuric and perboric acids.-Solutions of hydrogen peroxide or of compounds which yield hydrogen peroxide on hydrolysis such as sodium, barium or magnesium peroxides, persulphuric or perboric acid or salts of persulphuric, perboric or percarbonic acids are rendered stable and suitable after dilution for bleaching straw, wool, felt, &c. by the addition of sodium or other alkali pyrophosphate and an activating substance, consisting of sodium or other alkali chloride or silicate. Turkey red oil may be added. The solution, after the additions is restored to acid condition by addition of sulphuric or phosphoric acid. The Specification as open to inspection under Sect. 91 (3) (a) describes the addition of any substance to increase the stability in conjunction with any substance to increase the activity, and also the addition of chlorinated hydrocarbons and protective colloids such as soap &c. This subjectmatter does not appear in the Specification as accepted.
Patent GB-835891-A (GB)
Title: New dicarboxylic acid esters and amides and process for their manufacture
IPC: C07D263/62
Filed: 1956-06-15
Abstract: The invention comprises new acyl compounds of formula <FORM:0835891/IV (b)/1> in which R1 and R2 are aryl residues, -OC-R3-CO- is the residue of an unsaturated dicarboxylic acid as defined below and the -O- bridges and -NH- groups are attached to adjacent carbon atoms in the aryl nuclei.  The dicarboxylic acids referred to are those that contain one or more double bonds between the two carboxylic groups.  The double bonds may occur in the form of aromatic or heterocyclic rings, for example, benzene or furane rings. Of particular importance are the dicarboxylic acids in which the two carbonyl bonds of the carboxylic groups form together with the intermediate residue a continuous chain of conjugated double bonds, e.g. maleic acid, fumaric acid, terephthalic acid, thiophene-2,5-dicarboxylic acid and furane 2,5-dicarboxylic acid. The new compounds are prepared by condensing dihalides of the unsaturated acids, in inert organic solvents, with primary aryl amines which contain a hydroxyl group adjacent to the amino group. The amines may contain other substituents such as alkyl groups, halogen atoms and nitro groups.  Examples are given of the preparation of <FORM:0835891/IV (b)/2> <FORM:0835891/IV (b)/3> <FORM:0835891/IV (b)/4> <FORM:0835891/IV (b)/5> <FORM:0835891/IV (b)/6> <FORM:0835891/IV (b)/7> <FORM:0835891/IV (b)/8> <FORM:0835891/IV (b)/9> <FORM:0835891/IV (b)/100> <FORM:0835891/IV (b)/111> <FORM: <FORM:0835891/IV (b)/134> and (o) <FORM:0835891/IV (b)/145> The products may be used for the production of oxazoles which are optical brightening agents by treatment with agents which split off water, as described and claimed in Specification 835,892.  In this way <FORM:0835891/IV (b)/156> is obtained from compound (a) above, <FORM:0835891/IV (b)/167> from (c), <FORM:0835891/IV (b)/178> from (d), <FORM:0835891/IV (b)/189> from (e), <FORM:0835891/IV (b)/190> from (n), and <FORM:0835891/IV (b)/201> from (o).