baber/WOPTO huggingface dataset:
Patent GB-434135-A (GB)
Title: Improvements relating to motor vehicle wind screens
IPC: E05C17/38
Filed: 1934-03-08
Abstract: 434,135. Vehicle windscreens; hinges. MORRIS MOTORS, Ltd., and PRIESTLEY, G. A., Cowley, Oxford. March 8, 1934, No. 7386. [Class 103 (ii)] [See also Group XXV] A motor-vehicle windscreen is pivoted on a substantially central horizontal axis, inner and outer seating-surfaces being provided at the upper and lower parts respectively. In the form shown in Figs. 2 and 3, the movable frame e is pivoted at g, h to the lower end of a fixed frame member a, seating surfaces being provided by flanges b, j on the upper and lower parts of the fixed framing. Rubber &c. packing-strips c, k may be fitted against the flange b and a flange i on the lower part of the frame e respectively. For securing the device in adjusted position, set-screws o and slotted brackets n are fixed on the fixed and movable parts of the framing. A pivoted bolt q and nut r may be provided for securing the screen in the closed position. Fig. 6 shows a modification in which the pivotjoint g, h is replaced by a pair of brackets u on the fixed frame having elongated lugs t engaging the curved slots in the brackets n.
Patent GB-1341438-A (GB)
Title: Composite
Inventor: FAZZARI ANTHONY M
IPC: B29C70/02
Filed: 1971-03-22
Abstract: 1341438 Laminated fibrous composites; moulding composite articles UNION CARBIDE CORP 22 March 1971 [25 March 1970] 7524/71 Headings B5N and B5A A stampable, glass fibre reinforced thermoplastic resin composite comprises: (a) 30 to 95% by weight of a thermoplastic resin matrix, (b) 5 to 70% by weight of coarse glass fibres embedded in the core of the matrix, (c) 0 to 60% by weight of filler and (d) 0À5 to 10 ounces per square yard of fine fibres in the form of one or more surface mats embedded in one or each principal surface of the matrix, the fine fibre in the surface mats being uniformly distributed throughout the mats and having a denier of 1 to 25, and the surface mats being adapted to stretch about  to one inch on all edges of the composite during stamping of the composite on a mechanical stamping press or an hydraulic press with an extra large energy storage system to duplicate the action of a mechanical press, the weight of the surface mats being a minor portion of the weight of the composite, the total weight percentage of the components (a), (b), (c) and (d) amounting to 100, the composite being adapted to have at least one smooth surface having a roughness of less than 600 microinches when stamped. The fine fibres may be woven or non- woven, bonded on non-bonded and may be made of inorganic or organic materials, e.g. glass, polyvinyl alcohol, polyester, polyethylene, polypropylene, poly(4-methyl-pentene-1), phenolic resin, rayon, nylon, cellulose triacetate or acrylic resins. The coarse glass fibres which may be sized may be in the form of yarns, filaments, strands, threads, rovings or non-woven scrim. The thermoplastic resin which may be used in the form of sheets, powder, pellets or granules and which may contain plasticizers, heat and light stabilizers, fillers, pigments, extenders or impact improvers may be a homo- or co-polymer of an unsaturated monomer, a copolymer of an unsaturated monomer with carbon monoxide or formaldehyde, a nylon, a polysulphone, a polycarbonate, a phenoxy resin, a polyalkylene oxide, a polyphenylene oxide, a cellulose ester, an ionomeric polymer or a blend thereof, many suitable unsaturated monomers being specified. The filler may be of talc, silica, carbon black, calcium carbonate, clay, woolastonite, #-eucryptite, glass, asbestos or graphite and may be fibrous. The composite may be prepared by combining the components thereof by a conventional laminating technique. Fig. 1 shows an assembly of layers prior to compression moulding to form a composite, the layers comprising an overlay layer 1 of resin, a layer 2 of fine fibre, a coarse glass fibre mat 3, a second layer 4 of resin, a second glass fibre mat 5, a third layer 6 of resin, a third glass fibre mat 7 and a fourth layer 8 of resin. The formation of a shaped article by stamping is described.
Patent GB-1133392-A (GB)
Title: Round feeding mechanism for automatic guns
IPC: F41A9/29
Filed: 1966-02-21
Abstract: 1,133,392. Automatic guns. BOFORS A.B. 21 Feb., 1966 [2 March, 1965], No. 7559/66. Heading F3C. A round feeding mechanism is provided in an automatic gun, the gun having a recoiling barrel 1 and breech ring 2 and at least one round compartment 10 spaced from the vertical plane through the barrel 1 and holding a vertical stack of rounds lying one above the other with their axes parallel to each other and the barrel of the gun. The feeding mechanism comprises means exerting a permanent downwards pressure on the rounds in the compartment 10, e.g. a spring (Fig. 4, not shown) and a rotatable shaft 16 which carries two star wheels 14, 15. The spacing between each pair of the arms of the star wheels corresponds to the diameter of a round. The star wheels 14, 15 are rotated for feeding rounds to a ready position on flaps 5 by the weight of the rounds and the pressure means, the rotation of the wheels being controlled by a rotation checking device which includes two crown-toothed wheels 19 (20, not shown) fixed for rotation with the shaft 16 and an axially displaceable sleeve 21 mounted between the toothed wheels 19 (20), provided at each end with projections, and spring-urged towards the toothed wheel (20). The sleeve 21 is actuated through a series of pivoted levers 26, 29, 30 and 35 and a cam follower 36 mounted on lever 35 which cooperates with a cam path provided by a feeder arm 6 of a down-feeding mechanism disclosed in Specification 1,073,613. In the rest position of the feeding mechanism the sleeve is urged towards crown-toothed wheel 19 such that the projections of the sleeve abut the teeth of the wheel 19. The feeding mechanism may be locked in this position by a manually-operated device which includes a control rod 38 and a locking lever 37, the latter co-operating with a recess in the lever 29. The projections at one end of the sleeve 21 are offset with respect to the projections at the other such that, on actuation of the sleeve 21, the star wheels 14, 15 rotate through a part of their feeding motion until one set of projections mesh with the teeth of crown-toothed wheel (20), the sleeve 21 subsequently being returned towards toothed wheel 19 whence the star wheels 14, 15 complete their feeding motion and are then checked by the meshing of the other set of projections with the teeth of wheel 19. This two-part feeding motion occurs during recoil and recuperation of the gun barrel 1 and breech ring 2 respectively. The lever 35 may be disconnected from the other levers which actuate the sleeve 21 by a manually-operable lever 46, link 47, 44 and cam 48 device, the cam acting on a pin 50 and lever 39 assembly to disconnect a spring-loaded clutch mechanism 32, 34 such that the round compartment may be emptied without actuation of the down-feeding mechanism 6, 7.
Patent GB-986877-A (GB)
Title: Stacking and nesting containers
IPC: B65D21/04
Filed: 1964-02-24
Abstract: 986,877. Stacking and nesting containers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 24, 1964 [Feb. 25, 1963], No. 7618/64. Headings B8D and B8P. A stacking or nesting container with compartments 12, 14, 16, 18 extending downwardly from a horizontal shelf 10 so that the container will nest in another similar container, has an outer sloping wall 20 so shaped that the container will stack on top of a circular container when it is turned horizontally through a predetermined angle. In the form shown, the periphery of the shelf 10 is of scalloped pattern except at the corners as also is the side wall 20, the inner corrugations 30 being of steeper slope than the outer one and terminating at a ledge 22 above the bottom side wall. A flange like strip 32 extends from the foot of wall 20 terminating in an upturned rim 38. Drainage holes may be provided in the compartment bases. In further embodiments there may be three compartments arranged so that when stacked the base of a compartment in an upper container rests on the shelf 10 of a lower container. The peripheral shape of the container may be circular or octagonal and the angle through which the containers are rotated may differ.
Patent GB-557860-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/30
Filed: 1942-06-05
Abstract: 557,860. Sliding clasp fasteners. LIGHTNING FASTENERS, Ltd. (Talon, Inc.) June 5, 1942, No. 7663. [Class 44] In a slider for a sliding-clasp fastener having a locking tongue 16 integral with a lever 11 acting as a pull-tab the tongue being upwardly directed as shown when the lever is in the fully unlocked position injury to the tongue in this position as by pressure of a flat iron 17, Fig. 3, is avoided by forming the end portions 15 of the lever trunnions 14 of reduced cross-section and arranging that these end portions slightly overlap, as in plan, Fig. 5, the edges of the aperture 9 in the top wing of the slider and through which the tongue passes into engagement with the fastener members when the lever is moved to locking position. When pressure is applied to the upturned tongue by the iron 17 the sharp edges of the aperture bite into or sheer the portions 15 allowing the tongue to be depressed without injury to a lever flush with the lugs 10 under which the trunnions are mounted, as in Fig. 3, the lugs then taking any further pressure. The lugs, of U-form, are struck up from the aperture 9 and are first made divergent, Fig. 6, to facilitate insertion of the trunnions in the manner shown. They are then pressed inwards into parallelism to overlie the trunnions.
Patent GB-453510-A (GB)
Title: Safety device for preventing transmission of explosions
IPC: C10H21/08
Filed: 1935-03-12
Abstract: 453,510. Preventing explosions; safety apparatus for gas &c. pipes. HOFFMANN, R., 3, K÷nigin-Luisestrasse, Charlottenburg, Berlin. March 12, 1935, No. 7707. [Class 47 (ii)] [See also Groups XI and XXIX] In a safety device, for conduits or apparatus in which explosive gases circulate, of the kind comprising a dry explosion-retarding device e and a water seal gconnected in series, the water seal is connected to atmosphere by a rising pipe p. As shown, the device e, which is of the type provided with a long, sinuous gas passage, is connected to an acetylene generator a, and the seal g is connected to a burner b, which is supplied with oxygen by a pipe c. A valve d is associated in known manner with a device f adapted to be actuated by an explosion wave in the pipe i. A violent flash-back in the pipe i can pass the water seal g, but is retarded by the device e long enough to allow the valve d to be closed by the device f. Back-flow or creeping of oxygen towards the generator a is prevented by the water seal, as the oxygen escapes to atmosphere by the pipe h.
Patent GB-882289-A (GB)
Title: Improvements relating to conveyors
IPC: B65G47/48
Filed: 1959-03-05
Abstract: 882,289. Endless conveyers for delivering at predetermined positions. KAYSER BONDOR Ltd., and SOUTHALL, B. Nov. 3, 1959 [March 5, 1959], No. 7743/59. Class 78 (1). A conveyer for delivering goods in rectangular containers at predetermined positions along its length comprises a pair of endless chains (not shown) between which are secured by brackets 17 a series of carriers running on upper and lower rails 18, 20 and each comprising an open rectangular frame having a front ledge 16 and pivoted retractable arms 27, 28 adjacent the rear plate 14 of the frame, selector means on the carrier being adapted to cause simultaneous retraction of the arms 27, 28 at a predetermined discharge position to allow the rear of the goods container to fall on to a discharge shoot 22 which has a friction surface so that the container leaves the ledge 16. The container is propelled along the shoot 22 by the carrier until it drops off on to a delivery shoot 23. The selector means comprises a number of pivoted fingers 31 provided on each of two vertical shafts 29 which are rotatable in the frame and to which the arms 27, 28 are secured for pivotal movement. The pivotal movement of the fingers is limited by arranging them in slots 30 in each shaft 29 for pivoting about an inner rod 32. Springs 33 are adapted to retain the fingers in either the operative outwardly extending position 31<SP>1</SP> or inoperative position in which they extend inwardly of the carrier. A further finger 35 is rigidly mounted on each shaft 29. At each discharge position, two trip bars 36 having camming portions 38 are arranged at predetermined heights so that each is at the height of one of the selector fingers at the adjacent side of the carrier. In operation, one finger on each shaft 29 is moved to operative position. As the carriers move along the upper rails each of the arms 27, 28 remains operative until the corresponding operative selector finger engages a trip bar 36, whereupon the arm is swung by camming portion 38 to a retracted position. The container is not discharged, however, until both operative selector fingers contact trip bars 36, whereupon the rear of the container falls on to the shoot 22. The arms 27, 28 are returned to their operative positions after retraction by springs 39. A pair of rails 21 is provided below the return run of the carriers to support empty containers which are returned to the distribution point by pushers 40. A further pair of trip bars are provided beyond all the stations to contact the fingers 35 to discharge any container not previously discharged, e.g. owing to incorrect setting of the selector fingers. Means is also provided for returning any operative selector finger to retracted position as the carriers pass along the return run.
Patent GB-810777-A (GB)
Title: Magnetic recording-reproducing systems
IPC: G11B5/127
Filed: 1956-03-13
Abstract: 810,777. Magnetic recording head. DICTAPHONE CORPORATION. March 13, 1956 [March 14, 1955], No. 7796/56. Class 40 (2). In a magnetic record head spurious interaction is reduced by a _portion of magnetic material extending around a substantial portion of the gap and spaced therefrom by a distance greater than the width of the gap. In one embodiment, Figs. 1, 2 and 3, the core takes the form of a slotted cylinder 22 having central member 28 reduced in diameter at its end and extending into circular hole 34 in the cylinder 22 from which it is separated by a small layer of copper forming the non-magnetic gap. Figs. 4 and 5 (not shown), illustrate modifications of this embodiment in which a straight gap is employed instead of a curved one. Figs. 7, 8 and 9 show a second embodiment in which L-shaped pieces of magnetic material form a magnetic shunt across the gap in the core and are spaced therefrom by shims 70, 72 of copper thicker than the gap dimension. Specifications 670,246 and 726,216, [Group III], are referred to.
Patent GB-942757-A (GB)
Title: Process for the polymerisation of mono-olefins
IPC: C08F10/00
Filed: 1960-03-04
Abstract: Mono-olefin polymers are made by effecting the polymerization in the presence of a three component catalyst consisting of (a) an aluminium trialkyl and/or an aluminium alkyl hydride, (b) an ester of titanic or zirconic acid, and (c) a halogen, cyanogen, thiocyanogen, or an organic halogen, cyano, or thiocyano compound other than a vanadium compound.  The polymerization is generally commenced with a two component catalyst consisting of (a) and (b), and component (c) subsequently added.  The polymerization reaction with the two-component catalyst is usually a dimerization reaction, the subsequent addition of the third component giving rise to a copolymer of the dimerized mono-olefin with the same or different mono-olefin. Component (a) may be aluminium triisobutyl, or diisobutyl aluminium hydride; component (b) may be titanium tetrabutylate, and component (c) may be vinyl chloride, vinylidene chloride, benzonitrile, acetonitrile, acrylonitrile, chloroform, bromobenzene, bromine or alkyl chloride.  The polymerization is generally effected in a hydrocarbon solvent or diluent, e.g. gasoline.  Exemplified polymers are polyethylene, polypropylene, and copolymers of ethylene and butylene (dimerized ethylene).
Patent GB-213599-A (GB)
Title: A process of producing inorganic and organic acids
IPC: B01J19/00
Filed: 1924-03-27
Abstract: Hydrofluoric acid or any complex hydrofluoric acid is used for decomposing salts in the solid state in order to obtain the corresponding organic acid.  The reaction is usually performed in the cold but high temperatures and increased or reduced pressure may be employed.  Advantageously the fluorine acid is used in the gaseous condition or the salts are chosen such that the positive radical gives an insoluble or difficulty soluble salt with the complex hydrofluoric acid.  In one example formic acid is produced by decomposing sodium formate with hydrofluosilicic acid.  It is stated that hydrofluoboric acid may also be employed.  When the complex hydrofluoric acid does not exist in the free condition its components may be used, for example titanium fluoride and hydrofluoric acid.ALSO:Hydrofluoric acid or any complex hydrofluoric acid is used for decomposing salts in the solid state in order to obtain the corresponding acid.  The reaction is usually performed in the cold but high temperatures and increased or reduced pressure may be employed.  Advantageously the fluorine acid is used in the gaseous condition or salts are chosen such that the positive radial gives an insoluble or difficultly soluble salt with the complex hydrofluoric acid.  In one example solid sodium chloride is stirred with a solution of hydrofluosilicic acid. the precipitate of sodium fluosilicate is filtered off leaving a solution of hydrochloric acid. In further examples formic acid is produced by decomposing sodium formate with hydrofluosilicic acid, nitric acid by means of hydrofluoboric acid and sulphuric acid by treating sodium bi-sulphate with hydrofluoric acid.  When p  the complex hydrofluoric acid does not exist in the free condition its components may be used, for example titanium fluoride and hydrofluoric acid.ALSO:Hydrofluoric acid or any complex hydrofluoric acid is used for decomposing salts in the solid state in order to obtain the corresponding acid.  Salts of any metals such as sodium potassium, barium or other alkali or alkaline earth may be used.  The reaction is usually performed in the cold but high temperatures and increased or reduced pressure may be employed. Advantageously the fluorine acid is used in the gaseous condition or the salts are chosen such that the positive radical gives an insoluble or difficulty soluble salt with the complex hydrofluoric acid.  In one example solid sodium chloride is stirred with a solution of hydrofluosilicic acid.  The precipitate of sodium silico fluoride is filtered off, leaving a solution of hydrochloric acid.  It is stated that hydrofluoboric acid may also be employed. When the complex hydrofluoric acid does not exist in the free condition its components may be used, for example titanium fluoride and hydrofluoric acid.  In this way it is possible to produce difficulty obtainable double salts such as alkali zircofluoride.
Patent GB-758757-A (GB)
Title: Improvements in and relating to shades for lamps
IPC: F21V1/06
Filed: 1954-03-18
Abstract: 758,757. Lamp shades. DAY, D. M., and NEEDS, Ltd. March 18, 1955 [March 18, 1954], No. 7883/54. Class 75(2). The pivoted radial levers of a collapsible lamp shade of the umbrella type are fulcrumed upon and across an upturned rim of a portion of an annular two-part casing and are each forked at the inner end and engaged at that end by the periphery of an axially movable disc raised or lowered by hand operated screw mechanism. As shown the radially disposed levers bare rockable as by inverted V-notches b 2  resting on the upstanding rim d 1  of the lower part d of a casing enclosing a lever adjusting screw mechanism k carried by the upper part e of casing which upper part overlaps the said rim and has slots to accommodate the levers b the outer arms of which are, e.g. L-shaped to provide two angularly related edges, to a rectilinear one of which the pleated or flexible shade material e.g. paper, fabric or plastic is secured as by the provision of slots to pass over lugs n on that edge and is retained by tying means such as rubber bands, slip of material or by binding members, the inner forked ends b 1  of the levers engaging a guided disc m raised or lowered by rotation of the screw k by an external knob j. The disc m is guided in its movement by pillar bolts e securing the parts of the casing together and to the spidery of a lamp gallery. The lugs n may co-operate with clips o, Fig. 3, with hooked ends to receive and hold the edges of the shade panels a and with a central groove or fitted over the edge of the lever b and apertured for the lugs n to pass through, the clips being retained by slips p of bamboo or plastic material between the undercut lugs on the outside of the shade, the ends of the slips being notched or slotted.
Patent GB-699309-A (GB)
Title: Improvements in self levelling storing and dispensing apparatus
Inventor: FITZPATRICK JAMES LAWRENCE
IPC: B65G1/07
Filed: 1951-04-05
Abstract: 699,309. Self-balancing platforms. AMERICAN MACHINE & FOUNDRY CO. April 5, 1951. No. 7955/51. Class 78 (ii). Platform 10 (Fig. 1) sliding within framework 12 is kept at a constant level for various loads thereupon by adjustable spring(s) 46. The spring is connected at one end to a fixture and at the other end to nut 42 carried adjustably on screw 36 mounted on arm 30 secured to shaft 26, and the shaft carrying rigidly gear 21 meshing with rack 18 forming the support for the platform 10, so that the spring through the gears counterbalances the platform and knob 38 allows adjustment of nut 42 for materials of different density. The rack-supporting platform 10 (Fig. 2) may be formed of links 50 pivoted together at 52 and formed with interlocking lugs 68, the links being pressed into engagement with gear 21 by roller 64 and bending so as to run along guide 56 on roller 54. Specification 530,590 is referred to.
Patent GB-475491-A (GB)
Title: Improvements in and relating to air compressors
IPC: F04B39/08
Filed: 1936-03-17
Abstract: 475,491. Regulating air-compressors. BROOM & WADE, Ltd., and SMITH, C. B. March 17,1936, No. 7980. [Class 8 (i)] An air-compressor has an automatic plate delivery valve 26 and an inlet valve 9 with its axis inclined to the axis of the cylinder of the compressor and actuated by a cam 8 on the crank-shaft 6 through a tappet 10 coaxial with the valve 9. The tappet housing contains a spring-loaded piston 15 which is actuated by delivery pressure to raise the tappet 10 from the cam 8. In a modification the inlet valve axis and the tappet axis are parallel to the cylinder axis but the valve is placed nearer to the cylinder. In a further modification the axis of the inlet valve is inclined and the axis of the tappet is perpendicular to the crank-shaft. Fig. 4 shows a modification of last mentioned arrangement wherein the tappet is in two parts 52, 53. The part 52 is kept in contact with the cam 51 by a spring 56 and the part 53 is raised by the lever 60 actuated by the piston 62 exposed to delivery pressure. When used in compound stage compression the cam may actuate also the inlet valves of the high pressure cylinder the connecting rod 25<1> of which is connected to the same crank as connecting-rod 25.