baber/WOPTO huggingface dataset:
Patent GB-344525-A (GB)
Title: Improvements in and relating to cranes, derricks, shear legs and like lifting devices
IPC: B66C23/90
Filed: 1929-12-09
Abstract: 344,525. Cranes. NASH, A. F., Ardua, Kingston Hill, Surrey. Dec. 9, 1929, No. 6281/30. Divided on 333,523, [Class 78 (iv), Loading &c.]. [Classes 78 (iv) and 78 (v).] Relates to cranes, derricks, shearlegs and other lifting devices in which the load is carried at different radii by means of a luffing jib or the like, and in which a member subject to the influence of the load and restrained by balancing means acts as a safe-load indicator and for power cut-off gear. In order to take account of the variation of the safe load with varying inclination of the jib, in accordance with factors depending on the crushing strength of the jib and on the strength of other parts, a member which moves when the jib is luffed co-operates with a cam or abutment and acts upon the balancing means so that the action of the safety device is modified in the desired manner. As shown in Fig. 1, the head sheave 3 is mounted upon an eccentric sleeve 5 which can turn upon a fixed spindle 6 under the influence of the load but is restrained by a spring 14 acting upon the arm 7 through links 8, 13 and lever 9. The spring 14 bears upon one arm of a lever 15 pivoted on the jib, and the other arm of this lever co-operates with a fixed cam or abutment 19 to vary the tension in the spring 14 as the jib is luffed. The lever 9 carries a pointer 11 working over a scale 12. In Fig. 2, a link 20 connected with an arm such as 7, Fig. 1, carries the balancing spring 23 which bears on one arm a bell-crank lever 21 pivoted on the jib. The other arm of the lever 21 co-operates with a cam 26 which is pivoted on the jib and connected bv a link 30 with a fixed point so as to turn on its pivot when the jib is luffed. A pointer 28 on the cam moves over a scale 29. In a modification (Fig. 3, not shown), a lever such as 21 co-operates with a cam which slides along the jib during luffing. This cam, and also the link 8 are associated with pointers moving over scales. In Fig. 4, the arm 7 of the sleeve 5 is connected by a flexible member 44 to a point 46 of a steelyard 47 on the cab 2, and a weight 48 is moved along the steelyard by a pin-andslot connection with a lever 51 which is rocked by a cam 55 when the jib is luffed. As shown in Fig. 5, a rope 72 supporting the upper end of a luffing derrick is anchored through links 73, 74 to one arm of a lever 75 pivoted at 76, and the movement of this lever is restrained by a spring 83 bearing on a fixed abutment 85, and acting through a link 80 associated with a pointer 81. When the derrick is raised beyond a certain angle, the link 74 bears against the pivot 76 and the lever 75 is subjected to an additional force affecting the pointer readings. In two further modifications (Fig. 6, and Figs. 7, 8, not shown) a lever such as 75 is connected adjustably with a flexible wall of an oil chamber which is in communication with a pressure gauge. Specification 333,523, [Class 78 (iv), Loading &c.], is referred to.
Patent GB-511972-A (GB)
Title: Improvements in or relating to the separation of minerals
IPC: B03B11/00
Filed: 1938-02-28
Abstract: 511,972. Wet-separating. IMPERIAL CHEMICAL INDUSTRIES, Ltd., (Du Pont de Nemours & Co., E.I.). Feb. 28, 1938, No. 6296. [Class 82 (ii)] [Also in Group I] In a process of separating a mixture of solids of different specific gravities by the action of a parting liquid of intermediate specific gravity, the solids in a divided form are introduced into a moving stream of liquid floating on a relatively still body of parting liquid and the separated parts removed. In the Figure coal with its indigenous materials is introduced at 31, where a baffle 35 is provided, to a tank having a sump 11 filled with the heavy liquid. Water entering at 287 carries the floats across the heavy liquid to one side of the tank where they are forced by rakes 54 on an endless band 53 to one side of a screen 34 moving over adjustable rollers. The sinks fall directly on to the near side of the screen of which the two sides are separated by a baffle 36. The liquid carried out by the separated parts as they eventually leave the liquid is removed partly by its falling into a tank 14 and partly by upper and lower water sprays 282, 284 above a tank 16 ; the parts so cleaned fall on to a scraper conveyer 40 which is divided by a partition 41 into two parts. The heavy liquid accumulating in the tank 16 is returned to the sump 11 and the water is withdrawn at 286 and reintroduced to the apparatus at 287. The liquid in the tank 14 and the overflow from the tank 16 are passed to a tank 27 where the heavy liquid is separated with the aid of baffles 272, 273 to be returned to the sump 11 and whence the water is returned to the spray.
Patent GB-1412063-A (GB)
Title: Multi-pole electrical switch arrangement
IPC: H01H33/66
Filed: 1973-02-08
Abstract: 1412063 Vacuum switches SIEMENS AG 8 Feb 1973 [6 March 1972] 6344/73 Heading H1N In a multiple vacuum switch having a plurality of evacuated vessels each containing a pair of switch contacts, each vessel is insulated from its neighbour by a ribbed trough-shaped insulating body which surrounds that vessel on three sides. The switch contacts inside the vessel 4 comprise a fixed contact connected via pin 14 to terminal 15 and a movable contact connected via pin 13 and flexible conductor 17 to terminal 20. A lever 5 of insulating material moves the contact on being displaced by pin 26 in a drive unit, this pin acting on an extension of the lever which passes out of the insulating body via aperture 27 into the drive unit. The pin 26 is on the armature 24 of an electromagnet driven by an auxiliary voltage, the armature being held in a "switch open" position by springs 25 in the absence of this auxiliary voltage. The ribbed insulating bodies are supported on the drive unit and besides the internal ribbing 40 have extra ribs 41, 42 at their upper and lower ends.
Patent GB-273209-A (GB)
Title: Improvements in or relating to closet seats
IPC: A47K13/26
Filed: 1927-03-07
Abstract: 273,209. Kleber, W. March 7, 1927. Hinges.-Closet seats are pivotally mounted by means of two iron bars 3, Figs. 5 and 8, each having one end fixed to the pan and the other engaging a hole in the seat. The pivot portions 4 may extend outwardly from a recess 5, which may or may not extend to the surface of the seat.
Patent GB-491568-A (GB)
Title: Improvements in the manufacture and production of acetylene
IPC: C07C2/78
Filed: 1937-03-03
Abstract: Acetylene is produced by the incomplete combustion of gaseous or vaporized hydrocarbons by bringing together separately heated hydrocarbons and oxygen.  The temperature of the mixture is at least equal to the normal ignition temperature.  The speed of flow of the mixture is so high that the formation of flame does not take place until some distance from the place of mixing is reached.  The amount of oxygen is such that a flame is formed after mixing has been completed.  The oxygen may be preheated.  In an example, a current of methane at 750 DEG  C. is led through a tube of 4 cm. diameter at a speed of 10 meters per second.  A current of oxygen heated to 750 DEG C. is led into the methane current through a tube of 0,9 cm. diameter at a speed of 100 meters per second, in such amount that the gas mixture contains 40 per cent of oxygen.  The mixture then flows at a speed of 30 meters per second into a wider reaction chamber where a flame forms.  For each part of methane there is obtained about two parts by volume of a gas mixture containing 8,5 to 9 per cent of acetylene. Specification 408,691 is referred to.
Patent GB-213245-A (GB)
Title: Improvements in driving gear for locomotives
IPC: B61C9/14
Filed: 1924-03-12
Abstract: 213,245. Lentz Patents, Ltd., (Assignees of Lentz, H.). March 24, 1923, [Convention date]. Hydraulic transmission apparatus.-In locomotives driven through hydraulic gearing and crank mechanism, the crank gear on each side is driven by a secondary pump or motor independent of that driving the other side, so that the two sets of gear can adjust themselves to allow for anv inaccuracies in fitting. In the construction shown, each axle is driven by two motors c, c<1> having independent shafts d, d<1> and crank gear f. In a modification, they are coupled and a motor at each end is connected by crank gear to the coupling rod at one side only.
Patent GB-332626-A (GB)
Title: Improvements in or relating to wire netting
IPC: B21F27/00
Filed: 1929-02-27
Abstract: 332,626. Casablancas, R. R. Feb. 27, 1929. Drawings to Specification. Wire netting having hexagonal meshes with alternate rows of double and single twists as in Specification 280,542 is formed with the width of the meshes varying progressively across the width of the fabric. Strengthening wires may be arranged in the fabric longitudinally along the narrower meshes.
Patent GB-933144-A (GB)
Title: Improvements in and relating to the manufacture of semiconductor devices
IPC: H01L21/00
Filed: 1960-02-24
Abstract: 933,144. Etching. PHILCO CORPORATION. Feb. 24, 1960 [Feb. 24, 1959], No. 6474/60. Class 100 (2). [Also in Groups XX and XXXVI] A method of etching semi-conductive material 10, e.g. a transistor wafer, comprises directing a jet of liquid etchant 11 against an area on the wafer, and maintaining a cone of light coaxially surrounding the jet and converging on the area. The liquid etchant is delivered by a pump to a nozzle 18 from which it issues as the jet 11 playing on the work 10, a vacuum pump being connected to a nozzle 19 in which the work 10 is mounted. An ellipsoidal reflector 16 forms an image 13A of an incandescent filament 13 of regular, preferably square, outline at a focus F-2 of the reflector. The focus F-2 is located near the focus F-1<SP>1</SP> of a second coaxial ellipsoidal reflector 17 which produces an image of reduced size on the work 10 at the point of impact of the jet 11, the light cone entering the nozzle 19 through a transparent wall. The filament 13 may be run at 150 watts and the ratio of major to minor axes of the ellipses of the reflectors 16, 17 is preferably 2 to 1. A second pit may be etched symmetrically in the first pit by using a thinner jet, and a collector electrode is formed in the pit and an emitter electrode is formed on the other side of the wafer, (see Fig. 5, not shown).
Patent GB-144788-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B60K17/04
Filed: 1919-03-15
Abstract: 144,788. Evans, J. A. J. March 15, 1919. No Patent granted (Sealing fee not paid). Axle and like distance members and torque-rods.-Relates to four-wheeled motor-vehicles having two wheels at one end and a pair of driving wheels close together at the other end. The driving-wheels 2 are mounted close together upon a short axle giving sufficient clearance for a gear-case 4 containing bevel or other driving- gear. A torque tube 5 encloses the driving-shaft 11, and its forward end is pivotally mounted in bearings 20 in the main frame by means of a yoke 19. A coiled spring connexion may be provided between the forward end 15 of the torque tube and the socket end of the yoke, or the yoke may be replaced by a transverse leaf spring centrally secured to the torque tube, its ends being adapted to slide between pairs of rollers on the main frame. Reference has been directed by the Comptroller to Specification 137,161, [Class 79 (iii), Motorvehicles, Arrangement &c. of parts of].
Patent GB-125232-A (GB)
Title: Improved Heald or Harness Shedding Motion for Weaving Looms.
Inventor: SALISBURY ELIJAH
IPC: D03C1/16
Filed: 1918-04-17
Abstract: 125,232. Salisbury, E. April 17, 1918. Shedding-motions; selvedge shedding-mechanism.-A tappet-shaft above the loom is driven through chains and a counter-shaft from the bottom shaft, and is provided with tappets for operating the body healds; the harness for fancy and plain selvedges is operated through lever mechanism from tappets on the tappet-shaft and tappets on the counter-shaft respectively. A counter shaft 4, Fig. 1, is driven by a chain 2 and wheels 1, 3 from the bottom shaft, and through a wheel thereon, a chain 6, and a wheel 9 drives a tappetshaft 10, on which are mounted tappets operating on levers pivoted on a shaft 15 and connected to the healds for the body warps. The selvedge harness is carried by bobbins on brackets 21. and is operated by levers 20 secured to pieces 19 on a shaft 17. When fancy selvedges are to be woven, the pieces 19 are connected to levers 13 operated by tappets 11 on the shaft 10. When plain selvedges are to be woven, the pieces 19 are operated by levers connected to the upper ends of forked bars 24, Fig. 3, each carrying a bowl 23 acted on by a tappet 22 on the counter-shaft 4.
Patent GB-106121-A (GB)
Title: Improved Process and Apparatus for Carbonising Peat and other Materials and Simultaneously Obtaining Distillates therefrom.
Inventor: WHITFIELD CHARLES
IPC: C10B53/02
Filed: 1916-05-06
Abstract: 106,121. Whitfield, C. May 6, 1916. Materials for making gas, coke, and other products; condensing and washing plant; washers. - Seaweed, sewage sludge, peat, sawdust, &c., descend through a car. bonizing chamber from tray to tray while being heated by direct contact with combustion products. The watery vapours condensed out of the distillates are utilized for cooling the fresh distillates; the non-condensable products may be used as gaseous fuel for concentrating the distillates. In the plant shown, the material passes down the chamber a, and combustion products are supplied from a burner k. The distillates pass through pipes i, m to a washer n and rotary sprayer 2, the water &c. which collects in tanks o, q being pumped to a cooler v and supplied through a pipe x to the sprayer 2 and through a pipe w to the washer n.
Patent GB-497987-A (GB)
Title: Apparatus for widening and stretching shoes
IPC: A43D3/08
Filed: 1938-03-02
Abstract: 497,987. Apparatus for widening and stretching shoes. COX, L. N. (Schwarz F., [Firm of]) March 2, 1938, No. 6538. [Classes 17 (i) and 17 (iii)] Exchangeable stretching blocks for widening a shoe forepart and for stretching are mounted on slide members movable by screw spindles along the three arms of a T- shaped base frame. The blocks 10, 11 for widening a shoe forepart are detachablv mounted on slides 2, 3 mounted to move under the action of hand-wheels 18 and screw spindles 5, 6 along the arms of the T-shaped base frame 1 and a heel block 13 is mounted on a slide 4 which is movable at right-angles to the slides 2, 3 by a hand-wheel 19 and screw spindle 7 to stretch a shoe placed thereon with sole uppermost. A support 16 carried by a cranked spindle 15 rotatable about a vertical axis may be swung over and pressed against the shoe at the waist by a nut 17. Stretching blocks for top boots and leggings may be mounted on the slide members 2, 3, 4.
Patent GB-562877-A (GB)
Title: Improvements in or relating to sheets or films having substantially similarly oriented molecules
IPC: G02B5/30
Filed: 1941-05-26
Abstract: 562,877. Polarizing apparatus. STEVENS, A. H. (International Polaroid Corporation). May 26, 1941, No. 6737. [A Specification was laid open to inspection under Sect. 91, Oct. 5, 1942.] Drawings to Specification. [Class 97 (i)] A sheet particularly adapted for the reception of superposed pairs of dichroic stereoscopic images is formed of linear hydrophilic polymeric plastic material (such as polyvinyl alcohol, polyvinyl acetal, or cellulosic materials) having oriented molecules at the surfaces, the direction of orientation at one surface being substantially perpendicular to that at the other. The sheet may be formed by bonding together sheets of the plastic material, in particular polyvinyl alcohol, the molecules of which have been oriented, as by stretching the sheets, or a single sheet may have its surface molecules oriented by applying frictional force, for example by a scraper, without 'orienting the internal molecules. The directions of orientation of the molecules may be respectively parallel and perpendicular to the edge of the sheet, which may form a kinematograph film, or may make other angles with it ; in particular, each direction may be at 45 degrees to the edge of the film. In the latter case, the images give a true stereoscopic effect when viewed from either side of the sheet. The sheets may be used for the production of coloured stereoscopic images as described in Specification 556,578.
Patent GB-125738-A (GB)
Title: Improvements in or relating to Projectiles.
Inventor: HOYLE JAMES ROSSITER
IPC: F42B12/06
Filed: 1918-04-22
Abstract: 125,738. Hoyle, J. R., and Strang, H. B. April 22, 1918. Projectiles. - Consists in providing on the fore part of the body of a projectile, which is stepped, screw-threaded, or similarly constructed, a hardened and tempered steel cap C, which combines the properties of the usual head of an armourpiercing shell and of the cap which is usually formed separately and fitted on the head; a hollow nose D is fixed on the front end of the cap. The body A of the projectile is of homogeneous steel, and the stepped or similar formation of the end B provides resistant surfaces to support the cap C, which is shaped to fit closely thereon. The fore end of the cap may, as shown, be formed with a flattened face having a hardened protrusion C<1> in the centre, and is preferably formed like the armour-piercing caps described in Specification 10990/13. The constructions described in Speci-. fications 8875/14 and 8876/14 may, alternatively, be adopted. Specification 125,737 also is referred to.
Patent GB-249147-A (GB)
Title: Manufacture of halogen-dibenzpyrenequinones
IPC: C09B3/54
Filed: 1926-03-12
Abstract: 249,147. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Briining). March 14, 1925, [Convention date]. Halogen dibenzopyrenequinones are obtained by treating 1 : 5-dibenzoyl-2 : 6-dioxynaphthalene (see Specification 248,791), or its derivatives substituted in the benzoyl residues, with a phosphorus halide whereby halogen is substituted for hydroxyl and ring closure effected so as to yield an intermediate product which on heating with sulphuric acid yields dihalogen-dibenzopyrenequinones. The products dye cotton in yellow shades from a red vat. According to an example 2 : 6-dihydroxy-1 : 5-dibenzoylnaphthalene is heated with phosphorus pentachloride in chlorbenzene; the intermediate product separating is then heated with sulphuric acid of 66 per cent strength to obtain 1 : 6-dichlor- 3:4:8:9-dibenzopyrene - 5 : 10-quinone. In place of phosphorus pentachloride phosphorus pentabromide or a mixture of phosphorus pentachloride and oxychloride may be employed. The Specification as open to inspection under Sect. 91 (3) (a) extends to the treatment of 1: 5- dibenzoyl-2: 6-dioxynaphthalenes other than those substituted in the benzoyl residues and to the use of agents other than phosphorus halides for effecting exchange of OH for halogen. This subject-matter does not appear in the Specification as accepted.
Patent GB-1272924-A (GB)
Title: Cooling device for film-projector light-source units
Inventor: TSUGAMI TAISUKE
IPC: G03B21/16
Filed: 1970-02-12
Abstract: 1,272,924. Projector lamphouses. T. TSUGAMI. Feb. 12, 1970, No.6923/70. Heading G2A. A high-power film projector has a lamphouse comprising a Xeron lamp L, an ellipsoidal mirror 1 contained in a double-walled housing 2, 4 defining water-jackets 12, 13 through which cooling water is passed by way of tubes 7, 8, 9, there being inner and outer concentric air passages defined by tubes 15, 17, 19 directing cooling air, from duct 6 outwardly along the inner and outer surfaces of reflector 1 by means of aperture 1a. Tubes 15, 17 are flanged at 16, 18 to direct the air outwardly.
Patent GB-1494448-A (GB)
Title: Acidizing underground formations
IPC: C09K8/72
Filed: 1975-02-19
Abstract: 1494448 Acidizing subterranean formations SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 19 Feb 1975 [21 Feb 1974] 6986/75 Heading E1F A method of acidizing an underground formation comprises injecting into the formation an aqueous solution of a fluoride salt, a weak acid and a weak acid salt. The fluoride salt is provided in an amount equivalent to from 0.1 to 3.0 moles/1 of hydrogen fluoride and the amount of weak acid salt is such that it buffers the pH of the solution at a value of from 3 -to 6. Examples of the fluoride salt the weak acid and the weak acid salt are described. The acidizing solution may be injected into the formation during the forming or treating of a fracture.
Patent GB-198779-A (GB)
Title: Improvements in or relating to the machinery of drawbridges, cranes, dock gates and the like
IPC: B66C13/54
Filed: 1922-03-09
Abstract: 198,779. Cleveland Bridge & Engineering Co., Ltd., and Hill, C. W. March 9, 1922. Electric plant.- The operating and controlling means for the machinery of draw-bridges, cranes, dock-gates, &c., comprises a prime mover, variable speed and reversing and electric - ally-actuated means for automatically controlling the gear. The prime mover a drives the machinery shaft m through an electromagnetic clutch c, change-speed and reversing gearing d of any suitable kind, and a slipping clutch g on the driven member of which is an automatic electromagnetic brake. Power for the controlling circuit is derived either from a small dvnamo b or from an external source. The transmission gear d is controlled bv a hand-wheel i which also moves a pointer n over a suitable indicating scale o. The pointer carries a contact strip w which can bridge central contacts z', z<2> or side contacts x<l>, x<2>, x<3>. When the pointer n is in its central' position and the main switch p is closed, current passes from the + terminal through' the coil of a cut-out t, switch v, contacts z<1>, z<2>and back to the - terminal. The cut-out t as thus energized and closes its contacts in the main circuit. The switch v is connected to the cut-out so that it opens as the other closes and vice versa.. The cut-out circuit is now through the resistance u which has such a valve that the current through the cut-out is just sufficient to maintain the cut-out closed, but if the cut-out has been opened it cannot close again until the resistance u has been short-circuited, i.e. until the pointer n has been returned to its central position. To start the machinery the hand-wheel i is turned to bring the required gear ratio into action ; simultaneously the pointer n is moved in the corresponding direction and the contact w bridges the contacts x<1>, x<3>, completing the circuits through the clutch c, which is then energized and the brake g, which is released so that the shaft m rotates at a slow speed. The hand-wheel is then rotated until the gear is at full speed; the pointer in its full-speed position bridges contacts x<2>, so that when a limit switch 4 or 7, according to the direction of rotation, is closed an electromagnetic clutch k is energized which couples the handwheel i to a power-driven shaft and brings the gear back to the slow speed position. At the end of the run another limit switch, 8 or 9, is opened thereby bneaking the circuits of the clutch c and brake g, and the shaft m is stopped by the brake. A switch 1 in the main circuit is mechanically connected to the hand-brake, so that the switch is opened when the brake is applied and vice versa. A hand-operated emergency switch 2 is also provided. Where heavy machinery is to be operated the cut-out switch t closes the contacts of a relay switch which controls the main circuit.