baber/WOPTO huggingface dataset:
Patent GB-473768-A (GB)
Title: Improvements relating to aircraft undercarriages
IPC: B64C25/00
Filed: 1936-05-07
Abstract: 473,768. Aircraft alighting gear. DOWTY, G. H. May 7, 1936, No. 12955. [Class 4] An aircraft undercarriage includes a landing wheel mounting formed as a unit comprising a pivotally deformable frame in which provision is made for variation at choice of the ratio between vertical wheel travel under landing load and deflection of a shock-absorber resisting deformation of the frame. In one form, a landing-wheel 1 is carried by a lever 3 pivoted respectively at one or other of positions 4A, 10A to a shock-absorber 5 and a link 9 connected by an adjustable clip 7 to the shockabsorber. In a modification the shock absorber replaces the link 9. The wheel may be carried by a bell-crank lever selectively pivoted to a strut, a shock-absorber being interposed between the free arm of the lever and the strut. The shock-absorber may be interposed between the pivotal junction of two links and a strut, the links being pivoted to the strut and to a wheel-carrying lever. In a further form, Fig. 5, a further shock-absorbing element 27 is connected between toggle links 3, 22, 25, 24 arranged as shown and pivoted to a shock-absorber 6. In a further form, the invention is applied to an internallysprung landing-wheel similar to that described in Specification 473,756.
Patent GB-419068-A (GB)
Title: Improvements in or relating to the recovery of sulphur dioxide from gas mixtures
IPC: C01B17/60
Filed: 1933-05-03
Abstract: In the recovery of sulphur dioxide from gas mixtures by absorption in aqueous salt solutions and subsequent expulsion by heating and/or reduction of pressure, sulphuric acid is removed from the aqueous salt solution by adding to the solution containing dissolved sulphur dioxide and a quantity of neutral sulphate, a calcium compound or compounds and separating the thereby precipitated calcium, sulphate from the solution.  Lime and/or a calcium salt of a volatile acid and/or a calcium salt of the acids, other than sulphuric acid, whose radicles are present in the solution are employed as the calcium compound.  The sulphur dioxide may be expelled from the solution after removal of the calcium sulphate, any further calcium salts precipitated preferably being utilized in the removal of sulphuric acid from a further batch of the initial solution.  Preferably the solution to be treated contains a substantial amount of ammonium salts since the removal of sulphur dioxide and the consequent second precipitation can be thereby avoided.  The neutral sulphate may be added as such or may be obtained by neutralizing the sulphuric acid first formed with a suitable alkali, preferably ammonia, until the desired concentration has been reached.  When sulphur dioxide is being absorbed from weak gases, further sulphur dioxide is preferably passed into the solution.  A portion only of the total solution may be treated and in this case and when lime is employed, the amount of lime may be sufficient to precipitate all the sulphuric acid and some of the neutral sulphate.  The treated solution thereby becomes alkaline and on return to the main body serves for the neutralization of a further quantity of sulphuric acid.  The precipitation is preferably effected at room temperature although higher temperatures may be used.  One example relates to the treatment of aqueous solutions from sulphur dioxide recovery also containing mono-sodium phosphate, tri-sodium citrate, and sodium sulphate obtained by neutralizing the sulphuric acid first formed with caustic soda. Another example relates to the treatment of a similar solution containing mono-ammonium phosphate, tri-ammonium citrate and ammonium sulphate.  The treatment of an absorption liquor containing sodium citrate, neutral sulphate and sulphur dioxide is also referred to. The first Provisional Specification describes also calcium carbonate and calcium sulphite as suitable calcium compounds and the neutralization of the initially formed sulphuric acid with sodium carbonate.
Patent GB-1219302-A (GB)
Title: Improvements in or relating to cylinders of air rifles
Inventor: WACKROW ROGER DAVID
IPC: F41B11/684
Filed: 1968-03-18
Abstract: 1,219,302. Air guns. BIRMINGHAM SMALL ARMS CO. Ltd. 7 March, 1969 [18 March, 1968], No. 12960/68. Heading F3C. In an air rifle of the break-down type the cylinder and barrel pivoting fork are formed of a single cold forging. A web portion is formed integrally with the cylinder and barrel pivoting fork, the web having an aperture arranged to act as a transfer passage between the cylinder and barrel.
Patent GB-861663-A (GB)
Title: Apparatus for forming moulds for use in casting
IPC: B22D13/10
Filed: 1958-04-24
Abstract: 861,663. Moulding-machines; casting-machines. HERMAN PNEUMATIC MACHINE CO. April 24, 1958 [Sept. 5, 1957], No. 13016/58. Class 83 (1). Moulding-apparatus comprises a rotatable flask 4 mounted on a cradle movable to upright and horizontal positions, and means 10, 18 mounted on the cradle for opening and closing one end of the flask. The apparatus is similar to that described in Specification 861,662. The arm 10 is swung by fluid-pressure operated rack-and-pinion means. The closing means for each flask consists of a plate 18 welded to a tiltable tube 20 which can be adjusted by screws 14, 21, so that, when in its operative position, the plate 18 is close enough to the flask end to retain the sand therein. Escape of sand is further prevented by a projection 18a. To reduce frictional resistance, the plate 18 may be mounted in bearings. Specification 650,683 also is referred to.
Patent GB-961405-A (GB)
Title: Improvements in and relating to diaphragm spring clutches
Inventor: BLAND ALBERT NORMAN
IPC: F16D13/71
Filed: 1961-04-11
Abstract: 961,405. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. April 11, 1962 [April 11, 1961], No. 13025/61. Heading F2C. In a diaphragm spring clutch, the spring 3 is connected and fulcrumed at an intermediate diameter to the clutch cover 2 by a ring 6 having axially extending lugs 7 which pass through closely fitting openings 8, 9 in the spring and cover respectively and are bent radially outwardly to secure the parts together. The spring and cover are spaced by a fulcrum ring 10 or, in Figs 8 and 9 (not shown), by a number of axially extending spaced projections or a continuous annular rib or spaced dimples, formed in the face of the cover. The ring 6 is rolled from flat strip (Fig. 5, not shown) with the ends welded together (Fig. 6, not shown), and may have a radiussed bead, produced by a double fold, forming a fulcrum edge 11, or, an additional fulcrum ring (Fig. 4, not shown) may be located between the spring 3 and the ring 6 the edge of which is turned over to retain the ring, the operation being effected simultaneously with the lug bending. The lugs 7 are formed with tapered ends to facilitate assembly. The usual thrust ring 4 is attached to the diaphragm spring 3 by a sheet metal carrier 5, as described in Specification 914,277.
Patent GB-300882-A (GB)
Title: Improvement in steel retainer for rock drills
IPC: B25D17/08
Filed: 1928-05-03
Abstract: 300,882. Ingersoll-Rand Co. Jan. 14, 1928, [Convention date]. Percussive tools. - The drill is retained by a yoke K pivoted on a pin P which is supported on a rubber buffer J in a recess in the front head, and is prevented from moving sideways by a bolt Y which fits a groove T' in the pin and a corresponding groove in the buffer. The yoke may be rocked on the pin enough to release the drill, having ribs R which normally take into recesses in the front head. The bolt Y is screwed down by means of the head d and further locked by the nut Z.
Patent GB-1014332-A (GB)
Title: Improved vulcanized rubber compositions
Inventor: BLANCHARD ALLAN FREDERICK
IPC: B60C1/00
Filed: 1962-04-05
Abstract: A vulcanized rubber composition comprises an extender oil and a copolymer of a conjugated diene with alpha-methyl styrene in an amount of at least 30% of the copolymer or with a mixture of alpha-methyl styrene and styrene in an amount of at least 30% of the copolymer, the amount of alpha-methyl styrene being at least 15% of the copolymer, and the amount of extender oil being from 15 to 50% of the copolymer.  The total amount of alpha-methyl styrene and styrene (if present) may be up to 70% of the copolymer. Specified dienes are butadiene and isoprene while light mineral oil (liquid paraffin) or an aromatic fraction from mineral oil may be the extender oil. Fillers, e.g. carbon black in amount from 40 to 60% of the copolymer, antioxidants, antiozonants, and flex-cracking agents may also be present. Vulcanization is effected with sulphur (0 5-4% of the copolymer) and vulcanizing accelerators. The composition may be used to form the tread of a pneumatic tyre.
Patent GB-217018-A (GB)
Title: Improvements in hoods for vehicles
IPC: B60J7/12
Filed: 1923-05-16
Abstract: 217,018. Buch, M. May 16, 1923. Hoods for vehicles comprise a main pillar A, Fig. 1, and either two or three aligned rails constituting the cant-rails, supporting links and transverse bows being arranged as described below. The hinged main pillar A is vertical and has pivoted thereto the first rail D, to the end of which is hinged the second rail F. A first supporting link G is pivoted to the main pillar A and to the rear of the second rail supporting link G and may carry the transverse bow J. A second supporting link K is pivoted to the link H and to the second rail F. In the case where a third rail L is provided, the supporting link K is extended and carries the third rail L with the link H. The front end of the second rail constitutes a transverse bow F<2>. A rear bow B is connected by a link E to an extension of the rail D. A spring N to assist the raising, of the hood may be mounted as shown. In Fig. 3 another arrangement of the spring is shown. The spring N is connected between the bow B and a lever or link R, which is mounted eccentrically to the pillar pivot and is adapted to bear against a roller stop S. Specification 152,659 is referred to.
Patent GB-592723-A (GB)
Title: Improvements relating to linear-dimension gauges
IPC: G01B3/30
Filed: 1945-05-25
Abstract: 592,723. Linear - dimension gauges. NEWTON & CO., Ltd., L. H., and RAFFERTY, J. May 25, 1945, No. 13161. [Class 106 (ii)] A linear-dimension gauge comprises two main parts a, b, held together by screws f and having inserted therebetween distance pieces e formed by removing the middle portion of a tapered bar. One part b is preferably formed with notches c along one edge, thus providing a series of short projections d to form with the opposite edge of the part a a series of measuring positions gradually diminishing in size. The tops of the projections d may be chamfered.
Patent GB-535051-A (GB)
Title: Improvement in smokers ashtrays
IPC: A24F19/00
Filed: 1940-04-30
Abstract: 535,051. Smokers' ash trays. TRIPP, E. J. April 30, 1940, No. 13162/39. [Class 130] A shallow bowl-like ash receptacle has two parallel or concentric members adapted to support a cigarette at two points and each having a rounded or sharp edge so that it cannot support a cigarette independently of the other. The outer member is at or is formed by the outer wall 3, Fig. 1, of the receptacle and may have recesses 6 and an overhanging lip 5, while the inner member 2 is not provided with recesses and its edge is below that of the outer member. In a modification, Fig. 3, the receptacle 11 is provided with a cover 12 open at the centre 15 and flanged at 13 over the rim 14, the cigarette rest being formed by the rounded flange 13 and the edge 16 of the opening 15.
Patent GB-131979-A (GB)
IPC: G01C21/18
Abstract: 131,979. Sperry Gyroscope Co., (Sperry Gyroscope Co.). July 27, 1918. Gyroscopic apparatus.-A pendulum is stabilized by gyroscopic means adapted to call a gravitational torque into action to damp or suppress oscillations of the pendulum. In the construction shown in the Figures, the relative position of the centre of gravity and the point of support of the pendulum are varied by electro-magnetic means brought into action by the precession of two gyroscopes G', G<2>; the directions of the axes of precession of the two gyroscopes, which have vertical axes of rotation, are at right-angles to each other so that their stabilizing effects are in planes at right-angles to each other. In the construction shown in Fig. 1, the gyroscopes are carried by gimbal rings of which the outer one 4 is pivoted on brackets 5; the gyroscope G<1> is mounted in a frame 6 carried by the ring 4; and the gyroscope G<2> is mounted in a frame 7 pivoted in a frame 18 supported by the inner gimbal ring, connexion to the gyroscope being obtained by means of a tail 15 engaging a roller 16 mounted on the frame 18. The directions of rotation of the gyroscopes are preferably opposite. Precessional movements of the gyroscope G<1> due to an external force will close a circuit in a reversing- contact-system 10, 11, 12 and excite one of the electro-magnets 31, 32 so that the relative positions of the centre of gravity of the system and the point of support will be changed and a gravity torque exerted. The electro-magnets act upon an armature 20 pivoted on one of the pivots 22 of the ring 4, which is broken away, as shown, and connected by brackets 19 to rods 24, 29 carrying controlling springs and pivoted to the armature 20; a yoke 19<x> connects the brackets 19 and is pivoted at 21 to the armature 20. The inner ring is similarly controlled by the gyroscope G<2>. The gyroscopes may be made pendulous; springs such as S may be used instead or as supplementary centralizing means. Another method of shifting the centre of gravity is shown in Fig. 3; the electro-magnets 47 act upon a pivoted lever 36 carrying a weight 48.
Patent GB-132221-A (GB)
IPC: A23B4/07
Abstract: 132,221. Alcock, A. U., Brander, W., and Wagstaff, H. J. Sept. 5, 1918, [Convention date]. Heating by electricity.-Frozen carcasses or portions of meat are thawed by passing an electric current through them. The carcasses are hung on rails K, Fig. 3. Electrodes, connected by wires L, L<1> to conductors J, J<1> which lead from an electric generator, are inserted in the meat. The electrodes may consist of spikes driven into the meat and may be hollow and contain water or other cooling-liquid. Electrodes consisting of springs adapted to force spikes inwards or outwards into the meat, as shown in Figs. 5 and 10, may be used. The hooks by which the meat is suspended may also be used as electrodes. The electrodes may consist of baths of water or of saline or other solution into which the meat dips, or of mats soaked in such solution and on which it rests. Portions of the carcass may be shunted, with suitable resistances, to produce uniformity in thawing.
Patent GB-729380-A (GB)
Title: Agent for controlling pests
IPC: A01N59/26
Filed: 1953-05-12
Abstract: A composition which yields phosphine on contact with water or humidity comprises at least one finely-powdered metal phosphide, e.g. calcium phosphide, magnesium phosphide or preferably aluminum phosphide and at least one substance which decomposes in the air at a temperature below 100 DEG  C., preferably with evolution of carbon dioxide, for example, sodium bicarbonate, ammonium carbonate, ammonium carbamate, urea or urea substitution products.ALSO:A pesticide consists of a tablet containing at least one finely powdered metal phosphide capable of being decomposed by water or humidity with evolution of phosphine e.g. calcium phosphide, magnesium phosphide or preferably aluminium phosphide, and at least one substance which decomposes in the air at a temperature below 100 DEG C. preferably with evolution of carbon dioxide e.g. sodium bicarbonate, ammonium carbonate, ammonium carbamate, urea or urea substitution products.  The pesticide may contain 10 to 65 per cent preferably 33 to 55 per cent of the decomposable substance and the phosphide may have an average particle diameter of less than 6.10-2cm. preferably less than 1.5.10-2cm.
Patent GB-750321-A (GB)
Title: Improvements relating to coating apparatus
Inventor: PACKMAN PERCIVAL JAMES
IPC: B05C3/10
Filed: 1953-05-12
Abstract: Small articles are immersed in succession in a liquid, e.g paint, by conveying them through a flattened nozzle through which the liquid flows, the path of the <PICT:0750321/III/1> <PICT:0750321/III/2> <PICT:0750321/III/3> articles in the noozzle being substantially at right-angles to the flow of the liquid through the nozzle.  The nozzle 16 is arcuate, with open sides 17, 18, and converges to form a narrow mouth 19 extending across the front.  Paint from a covered reservoir 13 is fed to the nozzle by a pump 14 through a pipe 15, and is sufficiently viscose to fill the spout completely from side to side and overflowing into a funnel 20 which returns it to the reservoir.  The articles to be coated, e.g. small electric condensers 1, which are carried by wire leads 2 on a continuous paper strip 3 passing over a sprocket 5 of the same curvature as the nozzle enter the nozzle through its side 17, dip into the paint, and leave through the side 18.  The strip then passes over a pulley 11 and further sprockets 6, 7, 8, which invert it and the condensers carried thereby over a sloping tray 23.  Paint which drips from the condensers is caught in this tray and returned to the reservoir.  The speed of the pump 14 may be varied to correspond with the viscosity of the coating liquid and the size of the articles under treatment.
Patent GB-133596-A (GB)
IPC: G01G19/08
Abstract: 133,596. Roberts, R. March 5, 1919. Apparatus fitted to vehicles.-Relates to apparatus for indicating the load carried on a vehicle by measuring the compression of its springs and consists in connecting two spring-controlled arms of the indicator to each point of spring suspension of the vehicle body by means of a wire, rope, or the like co-operating with pulleys or bell-crank levers, means being provided for attachment, of the wire to different points of the two spring-controlled arms of the indicator for adjustment purposes. As applied to a vehicle in which the back and front axles 1, 2, Fig. 1, each support by one spring the body 3, the wire 12 connected to the centre of each axle by an adjusting screw 16 passes over pulleys or by bell-crank levers, to arms 6, 7 pivoted to the body 3 by a pin 10 and carrying the indicator members 4, 5 one sliding within the other. A spring 11 keeps the wire 12 taut. The arms 6, 7 and the bell-crank levers (such as 13a) are provided with a number of holes to any of which the wire 12 may be attached for adjustment purposes. In a modification, Fig. 3, where the vehicle has four points of suspension 16, the wire 12 therefrom passes round pulleys 19 attached to the arms 6, 7. A..jockey pulley 20 may be interposed. In a further modification, Fig. 5, the wire 12 from the arms 6, 7 passes round the vehicle body 3 on pulleys 21, and at the points of suspension 1, 2 passes under pulleys 22 on the body and over pulleys 23 on the axles.
Patent GB-837749-A (GB)
Title: Anti-friction fabric
IPC: F16C33/28
Filed: 1958-04-28
Abstract: 837,749. Woven fabrics. RUSSELL MANUFACTURING CO. April 28, 1958 [May 28, 1957], No. 13391/58. Drawings to Specification. Class 142(4) [Also in Group VIII] A multi-ply fabric having a low coefficient of friction on one face has that face formed by floats of polytetrafluorethylene warp yarns, some of which interweave with the second ply; the remaining warp yarns are cotton or spun polyethylene terephthalate, and all the weft is nylon, high tenacity rayon or continuous filament polyethylene terephthalate. The fabric is impregnated with a phenolic resin, which does not adhere to the PTFE yarns and thus leaves them exposed on the surface.
Patent GB-461223-A (GB)
Title: Improvements in devices for trueing grinding wheels
IPC: B24B53/08
Filed: 1936-05-12
Abstract: 461,223. Trueing grinding - wheels. JUNG, K. May 12, 1936, No. 13440. [Classes 60 and 124] A device for trueing grinding-wheels wherein the profile of a template is reproduced on the wheel by means of a diamond &c. tool operated through scale-reducing gearing, comprises means whereby the movement of the tool in the direction radially of the wheel is not reduced, whilst the movement across the periphery of the wheel is reduced in any desired ratio. The device comprises a plate a in which are movable two slides b, c, the slide b carrying a template or copy strip d adjustable by screws e, and the slide c carrying a transversely movable carriage f carrying the trueing-tool g. Slidable in the carriage is a stylus h, one end of which engages the strip d, the other end engaging a strip k slidable longitudinally in the carriage. The carriage is pressed upwards by springs q, and the slides b, c have thereon, at one end, teeth engaging a pinion m rotatable by a crank n, so that the slides move in opposite directions, the length of the template being twice the width of the grinding-wheel t, so that the scalereduction is in the ratio of 2 : 1, whilst the radial movement of the tool is not reduced. In order to prevent inaccuracy due to backlash, the tool g is operative during movement in one direction only across the wheel t, and for this purpose the strip k strikes a stop o1 at the end of the operative stroke so that during the return movement the lower end of the stvlus h lies in a notch p in the strip, thus allowing the springs q to lift the carriage f and the tool clear of the work ; at the end of the inoperative stroke, the strip k is moved by a stop o2, so that the tool again moves into the operative position. The gearing may be arranged to give any desired reduction ratio and the slides b, c may move in the same direction; screw gearing may be employed, and the strip d may be stationary.
Patent GB-134923-A (GB)
IPC: D21D5/06
Abstract: 134,923. Watford Engineering Works, Ltd., and Paramor, J. Nov. 13, 1918. Rotary strainers; non-rotary strainers with jigging or pulsating elements.-The trunnions of a paper-pulp strainer drum are each supported in a cradle-arm directly connected at one end to an eccentric and supported at the other end by a rigid link. Fig. 2 shows an outward-flow drum A on cradle-arms B connected to an eccentric, attached to a rotary shaft F, and to a link D. A compound eccentric is used, one eccentric being formed on, or attached to, the shaft, and a second taking the form of a sleeve and being adjustably mounted on the first. The drum is rotated, as it is jogged, by means of pads O of ferodo or other suitable material, fixed on the cradle-arms and engaging with treads on the drum-ends. The drum A, Fig. 5, is of the inward-flow type, and the arms B are provided with straps T to prevent the drum from floating. The drum is rotated by a ratchet-wheel X and pawl Y, the pawl being attached to an arm C<1> connected by a rod B<1> to an eccentric in a gear-box Z. A flexible apron G<1> attached to the rod B<1> forms a water-tight joint on the mouth of the gear-box. According to the Provisional Specification, the described method of jogging is applicable to plate-strainers.