baber/WOPTO huggingface dataset:
Patent GB-269333-A (GB)
Title: Improvements in machines for washing, sifting, and grading gravel, sand, or like material
IPC: B03B5/56
Filed: 1926-04-21
Abstract: 269,333. Southall, J. April 21, 1926. Washing-apparatus with screens.- A rotary washing, sifting, and grading apparatus for gravel, sand, &c., consists of two or more axiallyaligned barrel - sections 1, 2, of cylindrical or, as shown, frusto-conical form, into which the gravel &c. is fed by a hopper 8. Water is supplied by a pipe 9, the hollow axis 11, and openings 10. Openings of graduated diameters are made in the flanges 3, 4, 5, and as the barrel rotates on its axis 11 the material passes from left to right, being assisted in its passage by the angularly-disposed supporting arms 12, by lifting-buckets or vanes 16, 18, and shoots 17, 19. The shoots 19 discharge it to a rotating screen 20, made in three grading- sections 22, 23, 24, mounted on the barrel 1, 2 by means of arms 21, like the arms 12, and is kept clean by rollers 30 on rocking arms 31. Dirty water passes away by a pipe 29 and at the point 33. A sprayer-pipe 36 may be fitted in the screen. Radial scoops 37, as described in Specification 252,597, may also be fitted. Specifications 216,024 and 257,715 also are referred to.
Patent GB-329456-A (GB)
Title: Improvements in the vulcanisation of rubber and the like
IPC: C08K5/00
Filed: 1929-04-04
Abstract: 329,456. Imperial Chemical Industries, Ltd., Coffey, S., Naunton, W. J. S., and Shepherdson, A. April 4, 1929. Oils, sulphuretted.-Vulcanizable oils are vulcanized by the usual agents in the presence of an N : N dithio derivative of a secondary amine such as N: N dithio piperidine prepared as described in Berichte der Deutsch Chem. Gesell. 28, (1895), p. 165 et seq.
Patent GB-821178-A (GB)
Title: Brake construction
IPC: F16D65/22
Filed: 1957-04-01
Abstract: 821,178. Internally - expanding brakes. ROCKWELL SPRING & AXLE CO. April 1, 1957 [July 26, 1956], No. 10527/57. Class 103 (1). An internally-expanding brake comprises, as shown particularly in Fig. 4, a base-plate 12 having pivoted thereon at post 44 a component 20 having also a pin 56 which fits into a hole 64 in the actuator member 18, a coaxial pin 58 being guided in a slot 88 in the shoe web, the shoe 14 being thus applied to the brake drum. The actuator member 18 also has a pin 66 thereon which, when the actuator is pivoted about pin 56, thrusts against a socket 70 in the lower end of a link member 22, so as to rotate the latter and cause a thrust to be exerted by means of a boss 74 slidable in a guide-slot 90 in an oppositely disposed shoe 16, so as to simultaneously apply that shoe to the brake drum. The ends of the shoe webs take abutment on, and are guided in, slots in the ends of member 40 secured to the base-plate 12. U.S.A. Specification 2,852,105 is referred to.
Patent GB-106540-A (GB)
IPC: A01B3/54
Abstract: 106,540. Rushen, P. C., (Stock Motorpflug Ges.). June 8, 1916. Ploughs.-A motor - plough or like machine provided with a rear steering- wheel has its engine frame extended forwards in a support for a steering system which can be put into action when the machine is used as a traction engine. The machine is driven by two motors which may be detached individually in order that each may be used on other machines. The motors are carried on a frame 1 carried by driving-wheels 2 and rigidly and preferably detachably secured to a plough frame 3 supported at its rear end by a guidewheel 6. The front end of the frame 1 carries a pair of wheels 19 mounted on an axle carried by an upright post 21 vertically adjustable by a handwheel 22 in a boss 23 on a frame 1. During ploughing, the wheels 19 are inoperative, being held in the position shown in dotted line. When it is desired to use the machine as a traction engine, the wheel 6, or, if desired, the whole plough framework 3, is detached from the machine, and the wheels 19 are lowered to the position necessary for steering; the driver's seat is also moved from the frame 3 to the frame 1. In modified forms, one steering-wheel may be used in place of the pair of wheels 19, or these wheels may be removed altogether during the operation of the machine as a plough. In order to have the centre of gravity of the machine as far forward as possible relatively to the driving-wheel when the machine is used as a traction engine, the driving-wheels may be so driven that they may be moved backwards on the frame without interference with the train of driving-gearing. The bearings may be shifted with the driving-wheels, or an extra pair of bearings may be fitted for the second position of the wheels.
Patent GB-106596-A (GB)
IPC: E01D15/133
Abstract: 106,596. Bayley, E. H., (Bayley, H.). Feb. 16, 1917. Girders.-A girder used in making portable bridges is made of a bowed top member band a straight bottom member a with intervening struts d and is reinforced by a steel wire f stretched around it and secured to the central strut d. The middle portion of the wire passes from the upper to the lower side of the top member.
Patent GB-751149-A (GB)
Title: Optical imaging system especially for a measuring microscope
IPC: G02B21/00
Filed: 1954-04-12
Abstract: 751,149. Optical apparatus. ZEISS-STIFTUNG, C. [trading as ZEISS, C. [Firm of]]. April 12, 1954 [April 25, 1953], No. 10707/54. Class 97 (1). In a telecentric optical system, particularly for a comparison microscope, having a number of interchangeable objectives of different focal lengths, each objective is used with a number of reflecting surfaces so that the object plane, the image plane and the exit pupil of the objective in use remain fixed when one objective is replaced by another. As shown in Fig. 1 an objective 3 forms an image in a plane 2 of an object in plane 1 by means of reflectors 4, 5. The effective exit pupil is the vertical image 7, formed by the reflector 5, of a diaphragm 6 located in the near focal plane of the objective, this pupil being at distance a from the image plane. When the two-component objective 8, of different focal length, is in position of use reflectors 9, 10, 11 and 12 ensure that the object and image planes 1 and 2 remain fixed while the effective exit pupil 7, comprising the virtual image of a diaphragm 6 formed by the rear component of the objective, is again at a distance a from the image plane. A system of reflectors for use with a three-component objective is also described.
Patent GB-623607-A (GB)
Title: Preparation of cellulose ethers
IPC: C08B11/00
Filed: 1947-04-23
Abstract: Cellulose is subjected to etherification in the presence of alkali and a viscosity-regulating agent selected from the group consisting of hydrogen peroxide, an alkali-metal hypobromite, hypochlorite, hypoiodite, peroxide and periodate.  In an example, high viscosity cellulose is heated with ethyl chloride, sodium hydroxide, sodium hypochlorite and water, to 140 DEG  C. over a period of 8 hours, followed by maintenance at 140 DEG  C. for a further 8 hours. Volatile constituents are then removed by distillation under reduced pressure, so that the ethyl cellulose is precipitated from the remaining aqueous medium.  The product dissolves in benzene-alcohol mixtures to give solutions of much lower viscosity than products prepared in a similar manner, but with omission of the hypochlorite. In another example, cellulose is heated with sodium hydroxide, sodium hypochlorite, monochloracetic acid, and water, to form a carboxymethyl cellulose of reduced viscosity characteristics.  It is soluble in water. The proportion of hypochlorite or other viscosity-regulating agent is varied according to the desired reduction in viscosity, and it may be 0.01-0.25 moles. per glucose unit of the cellulose.  The cellulose used may be cotton linters, wood-pulp, wood flour, or sawdust.  The etherifying agent may be dimethyl or diethyl sulphate; methyl, ethyl, butyl, or benzyl chloride; ethylene chlorhydrin, ethylene oxide, or propylene oxide; or a halogenated lower fatty acid such as monochloracetic acid or its sodium salt. The alkali used may be sodium, potassium or lithium hydroxide, or a quaternary ammonium base.  The etherification may be carried out at 25-200 DEG  C. in the case of ethyl cellulose.  For carboxymethyl cellulose the temperature may be 20-75 DEG  C.
Patent GB-494155-A (GB)
Title: Improvements relating to magnetically-operated mercury switches
IPC: H01H51/28
Filed: 1937-04-16
Abstract: 494,155. Magnetic switches; mercury switches. CIANCHI, A. April 16, 1937, No. 10965. [Class 38 (v)] In a mercury or other sealed-container switch having electrodes 4, 5 sealed into the container and an armature 6 which moves so as to cause the electrodes to be electrically connected or disconnected, an electrode 4 is magnetized by a magnet NS movable in the direction of its axis from the position shown in which it magnetizes the electrode to a dotted neutral position in which the electrode is demagnetized. The movement of the magnet may be effected by a hand push 9 against the action of a spring 11, as shown, or it may be effected electromagnetically and the magnet may be arc-shaped and rotatable about the centre of the arc, Fig. 2 (not shown). When a winding 8 is energized, the armature 6 on a float 3 is pulled down and mercury flowing in through a hole 7 electrically unites the electrodes 4, 5. The float is held in this position, when the winding 8 is de-energized by the electrode 4 attracting an auxiliary armature 12 on the float. Release is effected by moving the magnet NS into the dotted position, and so demagnetizing the electrode 4. Specifications 453,229 and 493,355 are referred to.
Patent GB-175213-A (GB)
Title: Improvements in artificial glass eyes
IPC: A61F2/14
Filed: 1921-04-15
Abstract: 175,213. Taylor, G. April 15, 1921. Eyes, artificial. - Artificial glass eyes have a protecting coating of acetyl-cellulose, shellac or the like to prevent accidental fracture.
Patent GB-186951-A (GB)
Title: Improvements in mechanism for operating movable guides in machines for forming bobbins, pirns, cops or like bodies of yarn or the like
IPC: D01H1/42
Filed: 1921-04-16
Abstract: 186,951. Kershaw, G. April 16, 1921. Winding - machines; building - motions.-Relates to mechanism for operating the guides in a winding or like machine. Weights s, Figs. 1 and 2, for lifting the copping-rail a are supported on chains t, which work on barrels u, fixed on shafts f carrying pinions e in engagement with racks d on the poker bars c. A cam y, Fig. 3, working on a bowl z, controls the movements of a copping-lever h, and by means of this lever moves the copping-rail a down and controls its return under the action of the weights s and the tension of the thread &c. A chain v, and a chain-rod-chain combination, w, w<1>, w, Figs. 1 and 2, couple respectively the barrels u, u and x, g and are arranged so that when the chain w connected to the barrel g is pulled by means of the copping- lever h, all the shafts f will rotate to raise the weights s and lower the copping rail a. A shaft 2 on the lever h, Figs. 2 and 3, carries a ratchet-wheel 1 and a worm 3 engaging with a worm-wheel 4 fast with the barrel g, these devices operating on the movement of the copping-lever h and turning the barrel g, thus allowing the chain w to be unwound, and the weights s gradually to raise the copping-rail a. A handle can be fitted on a square 5 on the shaft 2 to return the barrel g to its initial position, and a stop 4a on the wormwheel 4 is provided to ensure a return to the exact initial position. To lower the copoing-rail, a pedal 6 pivoted on a stud 7, Figs. 1 and 2, is provided and is connected by a chain 8 to a barrel 11 bearing a chain 12 connected to a rod 13 which carries a tappet 14 arranged to act on another tappet 15 on the rod' w<1> when the pedal is depressed and to pull down the rail a. The tappets 14, 15 may embrace both rods 13, w<1> so that the rod w' carries the rod 13. The rod 13 is connected to one end of a spring 16, supported at its other end by a rod 17, secured to the rod w<1> by a tappet 18, while a guide-roller 19 for the chain w connected to the barrel g is mounted on a shaft in a block 20, and a guide pulley 21 is carried by a bracket 22. The disposition of the teppets 14, 15 and the strength of the spring 16 are such that successive upward and downward movements of the rail a do not effect the pedal 6: but each progressive upward movement of the rail c results in a corresponding raising of the pedal. A detent 23 engaging in a hole 24 in the block 9 is provided to hold the machine while yarn is being wound below the bottoms of the bobbins. A modification of the pedal 6 is described in which a hand wheel is arranged to control the motion of the copping-rail a. Specification 142,298 is referred to.
Patent GB-1003633-A (GB)
Title: A device for incorporation in a liquid supply line for trapping a foreign liquid or liquids mixed with the supply liquid and having a specific gravity greater than that of the supply liquid
IPC: B01D35/00
Filed: 1964-03-17
Abstract: 1,003,633. Separating liquids. W. P. VENTER, and G. J. GREEFF. March 17, 1964 [April 1, 1963], No. 11175/64. Heading BID. A mixture of foreign liquids in a supply liquid enters a settling chamber 5 through. an inlet 14 and the foreign liquids settle in the lower region of the chamber and the supply liquid fills the remainder of the chamber flowing through apertures 27 into a valve chamber 22 and out of the settling chamber 5 through an outlet 15. When the foreign liquid reaches a predetermined level, a float 19, which has a specific gravity less than the foreign liquid and greater than that of the supply liquid, contacts the lower end of a valve stem 26 which moves a ball valve 24 into a closed position against shoulder 25. The foreign liquid is then drawn off through a cock located in aperture 29. Pressure keeping the valve 24 closed is released when a cock 28 is opened, and the valve then opens. Air thus admitted facilitates the draining operation. The float 19 is located within a tubular member 18 provded with apertures 20 and 21 in its wall to permit the foreign liquid to enter to raise the float. An apertured feed pipe 16 may be connected to the inlet 12. The settling chamber may be incorporated in the supply line of an internal combustion engine.
Patent GB-716450-A (GB)
Title: Improvements in or relating to disposable vacuum cleaner bags
IPC: A47L9/14
Filed: 1952-05-02
Abstract: 716,450. Suction cleaner filters. CHICOPEE MANUFACTURING CORPORATION. May 2, 1952 [May 4, 1951], No. 11197/52. Class 8 (2). A disposable suction cleaner filter bag comprises woven or unwoven textile fibres e.g., a mixture of cotton and rayon impregnated with an oily substance and an oil retarding substance, the oil serving to enhance the particle retaining properties of the fabric, and the retarder preventing transport of oil from the fabric to any surface with which it may contact. A web of 75:25 cotton-rayon mixture having its fibres bonded together at spaced points or lines is dipped in an emulsion comprising 200 lbs. of 10 per cent solution of thin boiling starch, 20 lbs. glycerol and 20 lbs. mineral oil emulsion taken from a stock mixture comprising 82 lbs. mineral oil, 12 lbs. oleic acid, 4 lbs. triethanolamine and 100 lbs. water. The web is then dried and the fibres bonded, if not already bonded by any suitable adhesive. The mineral oil emulsion may be replaced by butyl stearate and the glycerol by glyceryl amines, alkanol amines or water dispersible cellulose derivatives such as methyl cellulose or carboxymethyl cellulose. Specification 468,529, [Group VIII], is referred to.
Patent GB-492061-A (GB)
Title: Improvements in mops
IPC: A47L13/20
Filed: 1937-04-20
Abstract: 492,061. Mops. BRIGGS, EMMOTT, & CO., Ltd., BANHAM, W., and NEAL, G. B. April 20, 1937, No. 11210. [Class 19] In mops of the type in which the mop material is parallel with the socket and handle or stail, the socket is formed of flexible material. In one construction, a separate piece of material C, Fig. 3, is stitched at c to a strip B of textile fabric, rubber, leather &c. to the edge of which, or between two strips of which, the mop material A is secured. The strip is rolled up with the piece C in the centre to form the socket, and the handle D, Fig. 1, is inserted in the socket and secured by nails &c. d. In a modified construction, the socket is formed from the strip itself by folding it and securing its folded edges together by a U-shaped fastener, by stitching, or by lacing. In another construction, the strip is wound round a wooden ferrule and secured to it by pins. In a further construction, the socket is formed from two strips arranged at right-angles to one another and joined together where they cross, the edges of the strips then being turned upwards and secured together by tape, elastic, &c.
Patent GB-610627-A (GB)
Title: Improvements in or relating to machine guns and other automatic or semi-automatic firearms
IPC: F41A19/28
Filed: 1946-04-11
Abstract: 610,627. Firearms. ROBINSON, R. S. April 11, 1946, No. 11211. [Classes 92 (i) and 92 (ii)] To produce a steady rearward reaction during the firing of an automatic firearm the barrel 2, Fig. 1, is releasably connected to the gun frame 1 at the rearward limit of normal barrel travel and the gun is fired just before it reaches the limit of its normal forward movement, the arrangement being such that the barrel reciprocates without interruption without kick or impact during a firing period and during the firing of the first and last shots, being secured to the gun frame only on the termination of the firing period. In Fig. 1 a sear 6 pivoted to the frame 1 holds the barrel extension 3 in its rear position, and to the extension 3 is pivoted at 10 an arm 9 which is guided at 11 in a slot 12 in the breech frame and which is connected by a link 8 with the breech-block 7. On releasing the sear 6 the barrel is free to move forwardly under the influence of a spring 4 and the link 8 imparts an accelerated movement to the breechblock. Just prior to the straightening of the links to the breech-closing position a spring- controlled member 16 is struck by a part 22 of a hammer 14 pivoted on the breech-block and the hammer is thus caused to actuate the firing pin 13; suitable bevel surfaces are provided on members 22, 16, so that they slip off one another to enable the breech-block to complete its forward movement. Lugs 19, 20 on a hydraulic buffer cylinder serve to cushion the shock when the barrel travels beyond its normal limits, as for instance when a missfire occurs. In a modification, Fig. 3, a rod 26 extending forwards from the rear end of the frame 1 carries two slidable collars 28, 29, urged apart by a spring 35. Collar 28 is secured to the gun barrel and is connected by link 34 to a bell-crank lever 31 pivoted on collar 29. A cam surface on a part 33 of frame 1 is engaged by the other arm of lever 31 and is so designed that a substantially constant reaction force is obtained. In another modification a link connects the barrel to the upper end of a pivoted arm which is acted upon by a spring so arranged that a substantially constant tension on the link is obtained. Specification 601,376 is referred to.
Patent GB-856814-A (GB)
Title: Improvements in mechanism for delivering articles into a machine, particularly adapted for delivering caramels into wrapping machines
IPC: A23G7/00
Filed: 1957-04-05
Abstract: 856,814. Hoppers; rotary conveyers. SERAGNOLI, A., and SERAGNOLI, E., [trading as SOC. G.D. IN ACCOMANDITA SEMPLICE]. April 5, 1957 [April 12, 1956; March 23, 1957], No. 11237/57. Class 78 (1). [Also in Group XVII] Caramels which have been fed into holes 24 in a conveying disc 21 are moved by the disc past a series of stations at which various operations such as the removal of undersized caramels, the trimming or crushing of oversize articles and the filling of empty holes in the disc are carried out before the caramels reach a final station V where they are removed from the disc and wrapped. A stationary surface 26 is disposed below the disc to retain the caramels in the holes. The disc 21 is driven intermittently so that the caramels come to rest in each station. In one embodiment, Fig. 2, the disc 21 is supplied with caramels by a hopper formed by walls 50 and 51, the disc rotating in the direction of arrows 23 to remove caramels entering the holes from beneath a separator 52 (station I). Adjacent station II a stationary scraper knife 31 is located which trims off any oversize portions of the caramels. At station III the surface 26 below the disc is discontinued such that only two shoulders 27, 28 of the surface 26 remain to support the article. While a hole is moving towards or away from station III a cam-operated tongue 29 is positioned in the space between the shoulders 27, 28, this being temporarily removed by the cam operation during the period of rest of a caramel in the station so that if the caramel is undersized it falls out. A stationary plate (not shown) is located above the hole at station III to prevent tilting of articles which are not excessively undersized. A further station III may be included in which the shoulders 27, 28 are in the positions 36, 37. At station IV an auxiliary supply hopper 32 filled with caramels of correct shape and size is positioned from which a caramel drops to enter any empty hole arriving at this station. At station V a vertically reciprocating plunger engages the caramels from below and raises them, together with a piece of wrapping paper fed by suitable means to a wrapping-device (not shown). In a modification, Fig. 4, the disc 21 does not pass beneath the main feed-hopper 54 which is bounded by the walls 44 and 45 but is fed with caramels by two feed-discs 39, 39<SP>1</SP> provided with holes 43 and driven in synchronism with the disc 21 and located mainly within the hopper, vertically reciprocating plungers (not shown) raising the caramels from the holes 43 to the holes 24 when the discs are at rest. In a further embodiment, Fig. 6, the station III for rejecting undersized caramels fed from hopper 50 by disc 21 consists of a reciprocating tongue 47 disposed in a gap in the surface 26 and provided with a hole 48 of slightly smaller size than the holes 24, the tongue being reciprocated to place the hole 48 below each hole 24 as it rests in the station.
Patent GB-108217-A (GB)
Title: Improvements in Ring Shields for Glass-drawing Apparatus.
Inventor: WADE HAROLD
IPC: C03B7/01
Filed: 1916-08-10
Abstract: 108,217. Wade, H., (Empire Machine Co.). Aug. 10, 1916. Drawing. - T h e glass is drawn from within a ring 6, the lower edge of which is inclined to the horizontal so that the metal enters from different depths in the tank. Thus by turning the ring so that its lowest point is in the hotter portions of the molten mass it is possible to equalise the temperature of the glass within the ring.