baber/WOPTO huggingface dataset:
Patent GB-372881-A (GB)
Title: Improvements in or relating to turning lathes
IPC: B23B5/24
Filed: 1931-03-11
Abstract: 372,881. Lathes. B.S.A. TOOLS, Ltd. and OGILVIE, W., Armoury Road, Small Heath, Birmingham. March 11, 1931, No. 7474. [Class 83 (iii).] A lathe has two saddles capable of independent longitudinal sliding movement by means of rack-andpinion mechanism and adapted to carry a roughing tool and finishing tool respectively which operate successively on a work-piece during the forward feed movement. The feed motions for the saddles 7, 8 comprise racks integral with the saddles engaging pinions on a transverse shaft 20, Fig. 2 ; the pinion for the rear saddle, which carries the roughing tool, is loosely mounted on the shaft 20 and is driven through a spring-controlled cone clutch 28, Fig. 3, adapted to slip when the saddle engages a stop at the completion of the feed movement. The saddle 7, carrying the finishing tool, is fed at a reduced rate by a pinion 18 keyed to the transverse shaft 20 and driven through suitable gearing from a worm 21 mounted on a drop shaft 22 ; the drop worm being thrown out of engagement at the end of a feed movement by a known trip device 33. A hand-wheel 39 is provided for retracting the saddles, stops 40, 41 limiting the movement away from the head. The chuck has means for quick release and attachment of a work-piece operated in known manner by a hand-wheel 42, provision being made for swivelling the headstock about a centre 4. Instead of mounting the work-piece in a chuck or on a spigot it may be mounted between centres.
Patent GB-416323-A (GB)
Title: Improvements in and relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1933-03-11
Abstract: 416,323. Spray carburetters. CAMERON, P., 4A, York Place, Edinburgh. March 11, 1933, Nos. 7479. 27701, and 27702. [Class 7 (iii).] An atomizing device comprises means for imparting a helical direction to one or more streams of fuel, means for imparting an opposite helical direction to one or more other streams of fuel and a converging or conical mixing chamber wherein said streams converge and meet prior to issuing into the reduced pressure zone around the atomizer. Turbulence may also be imparted to the fuel as it enters the atomizing device. Heavy fuel from a float chamber 1 passes through a nozzle 5, is mixed with hot air supplied to a perforated tube 7 and the mixture is conveyed through a duct 10 to an annular passage 11, Figs. 1, 2 around the choke tube 12. The annular passage is connected by a number of small tubes 14 to a turbulence chamber 15 in the axis of the choke tube. Eight tubes are shown, and their outlets are so arranged that the streams from four of them are radial and impinge, the outlets of the other four being arranged at an angle to give a spiral or helical flow. The turbulence chamber terminates in a conical mixing chamber 16, Fig. 3, with an outlet orifice 17. At the junction of the turbulence and mixing chambers is an atomizing disc 18, Figs. 3, 4 having two or more helical grooves 20 at its periphery and two or more oppositely directed helical inner passages 21 which may be formed as helical slots in a separate disc 22. To increase the turbulence, the wall of the chamber 15 or the walls of the helical grooves may be provided with threads, grooves, steps or ridges. In the case of the passages 21 the steps, ridges &c. may be formed on one side or on both sides of the passages, and in the latter case they may be inclined in the same or in opposite directions. The nozzle structure formed by chambers 15, 16 may also be provided on its exterior with threads, grooves &c. to create a slight turbulence in the air, or the air may be whirled by vanes before meeting the fuel. The tubes 14 may be in the form of vanes to present a large surface to the heated air and each vane may have a number of passages. A bye-passage supplied with petrol is provided at 24 and a bridge passage at 30 to ensure running until the main heavyfuel nozzle is in action. An automatic inlet valve 31 for air, preferably heated, is provided above the throttle to prevent mixture being drawn when the throttle is being closed. Air enters by a pipe 33 and jacket 32 and is heated by exhaust gases passing through tubes 37, the air entering through perforations 38. The aerating tube 7 may be dispensed with.
Patent GB-202343-A (GB)
Title: Improvements in binding devices for loose leaf ledgers, files and the like
IPC: B42F13/04
Filed: 1922-03-15
Abstract: 202,343. Hamlett, H. W. March 15, 1922. Flexible-band files.-In a loose-leaf binder of the thong type, mechanically-adjusted guides for the thongs are provided in each clamping-bar, for varying the distance between the leaf-engaging portions of the thongs to suit the pitch of the holes in the leaves. The guides 8, 8 and 31, 31 of each pair are adjusted simultaneously by right- and left-handed screwed spindles 6, 26. The thongs 7', which are attached to the lower clamping-bar by clips 32, pass through the guides into the upper clamping-bar where fixed guides 23 and movable guides 11, 12 are provided. The guides 11, 12 form part of nuts 9, 10 mounted on a right- and left-handed screwed spindle 5. Equal adjustment of the pitch-adjusting guides 8 and 31 does not cause any alteration in the distance between the clamping-bars, which can be varied by turning the spindle 5. The thongs may be attached to the guides 31, instead of directly to the lower clamping-bar, and the fixed guides 23 may be replaced by guides 18, 19 on the upper side of the pitch-adjusting guides, adjustment of the pitch of the thongs in each of these cases causing an alteration of the distance between the clamping-bars. A separate spindle may be used for each guide to give independent adjustment, or, a right- and left-handed screwed nut engaging spindles attached to the guides may be used to give simultaneous adjustment. Covers.-Each clamping-bar consists of side plates 1, 2 separated by distance pieces 3, 4.
Patent GB-1441043-A (GB)
Title: Process for the production of iron oxide
IPC: C01G49/08
Filed: 1974-02-21
Abstract: 1441043 Black iron oxide LAPORTE INDUSTRIES Ltd 10 Feb 1975 [21 Feb 1974] 7881/74 Heading C1A A process for the production of a black iron oxide pigment having a blue undertone comprises two or more stages, each comprising firstly treating an aqueous solution of FeSO 4  with a neutralizing agent to form a precipitate and secondly oxidizing the precipitate in suspension with an oxygen-containing gas to black iron oxide, wherein the precipitate in the second and in any succeeding stage is formed and oxidized in the presence of the oxidized precipitate(s) from the proceeding stage(s), the oxidation being conducted at above 50‹ C. if the pH of the suspension being oxidized is 2-5. The sulphate starting material is suitably copperas, preferably derived from the sulphate process for the production of TiO 2 . The starting solution may contain 10-60 g./l. Fe<SP>+2</SP>. The neutralizing agent used in each stage is preferably NH 3  of aqueous NH 4 OH but alkali metal hydroxides may also be used. The agent is preferably used in amounts of 100-120% of that stoichiometrically required. Additional FeSO 4  in the form of a solid or a concentrated solution may be added to the water phase containing the black iron oxide as formed by oxidation in the preceding stage. If desired, only a portion of the Fe content of the initial solution is precipitated in the first stage and the remainder may then be precipitated in one of the subsequent stages. Neutralization is preferably performed at 50-90‹ C. and the oxidation stage is suitably performed at 50- 95‹ C. by passing the gas, e.g. air upwardly through the aqueous suspension for 1-4 hours. Preferably the process consists of 3-7 stages. The combined oxidized precipitates may be recovered by filtration and are then washed with water until free of SO 4 <SP>2-</SP> ions and are then dried at 50-120‹ C. or spray dried and then milled to produce a pigment.
Patent GB-1040422-A (GB)
Title: Improvements in or relating to automatic control systems
Inventor: WALKER HERBERT OSWALD
IPC: H02P23/00
Filed: 1962-02-28
Abstract: 1,040,422. Automatic control systems; programmed electric control. RICHARDSONS WESTGARTH & CO. Ltd. Feb. 27, 1963 [Feb. 28, 1962], No. 7885/62. Heading G3N and G3R. In a system for the programmed starting or stopping of a steam turbine the programme is automatically modified to keep a signal dependent upon differential temperatures and/or the rate of change of a single temperature within limits. As shown, the temperature differential across the inner and outer walls of the turbine casing is measured by detectors at 12, 14 and absolute casing temperature at 10. The resulting signals F2, F1, after transistor amplification at 22, 24 pass to a servo 42 which produces an output F3 if F2 or rate of change of F1 are outside prescribed limits. F3 operates a servomotor 40 to modify the operation of a programme device 28 controlling the steam supply apparatus 38. The device 28 comprises an autotransfer whose tapping is varied by a motor at a predetermined rate. The programme may also be modified by a second servo system 34, 36 operative when the difference between turbine speed detected at 30 and the programmed speed F5 is sufficiently large. In an alternative arrangement (Fig. 3, not shown) the temperature control is combined with an arrangement whereby turbine acceleration is compared with a variable reference, the difference controlling the steam supply; the temperature servo motor adjusts this reference value.
Patent GB-565198-A (GB)
Title: Improvements relating to methods of and means for reconditioning the necks of drums,cans and like containers and also the mouths of open-topped containers
IPC: B21D1/08
Filed: 1943-05-18
Abstract: 565,198. Reshaping necks of drums, cans, &c. PETTICAN, W. E., and FEAVER, Ltd., J. May 18, 1943, No. 7914. [Class 83 (iv)] The neck 5 of a damaged container is reconditioned by inserting a former 1 into the neck and smoothing it by rolling around it one or more rollers 9. The former 1 has flange 8, to engage the lip 6 of the neck, an extension with a groove 7, to be engaged by flanges 10 of the.rollers 9, and an axial stub shaft 20, on which is mounted, to rotate and have a limited axial movement, a sleeve 15. This has a handle 24 and arms 14, to each of which is pivoted a bent lever 16, one end of each lever passing freely through an axial hole of a roller 9 and the other through a slot in the sleeve 15 to engage between a spring-pressed spider 22 and the end of the shaft 20. After inserting the former 1, the handle is pressed down, thus causing the rollers to be pressed inwards, and then rotated, thus causing them to roll around the neck 5.
Patent GB-876341-A (GB)
Title: Improvements in or relating to buffer means for absorbing the kinetic energy of moving objects
IPC: B61K7/18
Filed: 1956-06-28
Abstract: 876,341. Railway and lift buffers. LEWIS, E. M. June 30, 1957 [June 28, 1956], No. 7970/56. Classes 78 (2) and 104 (2). [Also in Group XXXIV] A buffer device for a rail vehicle such as an overhead crane comprises a structure in the form of a short tube I whose walls are corrugated as shown in Fig. 3, and mounted on a straight circular tube 10 supported on a fixed rigid structure 3 and secured to an end-plate 9 which has a rubber block 4 secured thereto. A coiled compression spring 12 is mounted at the rear projecting part of the straight circular tube 10 such that when a vehicle which runs on rails 5 reaches the end of its travel it abuts against the rubber block 4 and should the momentum of the vehicle be excessive the corrugated tube 1 will collapse endwise in the manner of a concertina, and will thereby absorb the remainder of the kinetic energy by plastic deformation beyond the elastic limit. After such an event the collapsed corrugated tubes 1 will be discarded and replaced by new ones. In a buffer device for a rising mine cage 15, vertical mild steel corrugated tubes 14 are secured to the underside of fixed members 16 which are clear of the path cage 15. Vertical tie rods 18 pass through the corrugated tubes 14 and are secured at their upper ends to members 19 which normally rest on members 16. If the cage 15 overruns its proper stopping place, it will abut members 19 and will cause the collapse of the corrugated tubes 14 which will absorb the kinetic energy by plastic deformation of the corrugated tubes 14.
Patent GB-855375-A (GB)
Title: Method of and means for correcting errors of motion in precision machine tools
Inventor: SYKES ARTHUR
IPC: B23F23/12
Filed: 1958-03-14
Abstract: 855,375. Machine-tool details. BROWN INDUSTRIES Ltd., D. Feb. 23, 1959 [March 14, 1958], No. 8184/58. Class 83 (3). In a gear-hobbing or other machine, the work-table 10 is driven from a shaft 11 through single-helical gears 12, 13, a worm 15 and worm-wheel 16. To correct any error of movement of the table relative to a tool due to inaccuracies in the driving-train, an errorcam 17 engages a follower 18, which moves the pinion 13 axially along the pinion 12, thus increasing or decreasing the speed of the table 10. The cam is produced by fixing the axial position of the pinion 13 and recording the error of relative movements between the tool and the work. The invention may be adapted for correcting errors in rectilinear motions, and the cam may be carried by any member receiving motion from the drive-means.
Patent GB-165182-A (GB)
Title: Improvements in frames for motor cycles or like vehicles
IPC: B62K11/08
Filed: 1920-03-19
Abstract: 165,182. Mehler, M., and Nash, R. J. March 19, 1920. Sheet-metal frames.-The frame of a motorcycle comprises a sheet-metal inverted channel girder carrying the steering-pillar, supports for the rear wheel, spring-mounted footboards, the engine, and the engine accessories such as the fuel tanks, batteries, and carburettor. As shown the frame comprises a main part A, strengthened by stays E<2>, A<5>, and riveted or welded to a front part A<6>, having a tubular part A' forming a guide for the steering-pillar. The rear wheel is carried in a forked member B<3> hinged to the frame at B<4> and spring supported at its other end. The footboards E may be either attached to flanges A<4>, or they may be carried by C-springs attached to their ends, and anchored on transverse bolts passing through the frame. The engine is mounted directly above the rear wheel, an aperture being made in the frame for the transmission gear. A fuel tank C is mounted inside the frame and a battery D in a box D<2> is inserted into the frame through an aperture underneath it and secured by wing-nuts A<12>.
Patent GB-1092631-A (GB)
Title: Combined fluid shock absorbers and fluid-pressure control systems
Inventor: BOYDELL KENNETH RAYMOND
IPC: F15B21/00
Filed: 1964-02-27
Abstract: 1,092,631. Shovel excavators. DOWTY HYDRAULIC UNITS Ltd. March 1, 1965 [Feb. 27, 1964], No. 8232/64. Heading E1F. [Also in Division F2] An earth moving or like vehicle has a jack-actuated earth moving implement 22 and is also provided with a shock absorber comprising a cylinder 12 which houses a piston 13. Hydraulic fluid forced out of the jack 18, 20 displaces the piston 13 to expel fluid through a pressure release valve 26 to a reservoir 27. Displacement of the piston 13 downwardly in the cylinder 12 allows a valve spool 31 to move under its spring loading such that pressurized fluid from a pump 28 passes through pipes and ports 29, 34, 37 and 25 to the lower chamber 24 of the cylinder 12 to restore the piston to its normal position whence the valve spool 31 is restored to its inoperative position. In a further embodiment displacement of the piston actuates a pump through an electrical device.
Patent GB-830456-A (GB)
Title: Method and apparatus for applying heat-fusible coatings on solid objects
IPC: B05B7/20
Filed: 1957-03-13
Abstract: In a method of and apparatus for flame-spraying fusible powders the powder is entrained in a small volume of carrier gas and led at a relatively low velocity to the flame centre and, due to the relatively high velocity of the combustion gases is accelerated by the flame towards the surface to be sprayed.  The flame spray gun described is similar to that described in Specification 829,370, [Group XXIX], with the gun passageways &c. suitably dimensioned and the gun suitably adjusted.  In one example of operation a stainless steel rod to be coated at one end with alumina is placed in a lathe chuck and rotated.  The said end is prepared by grit-blasting and is heated to about 250 DEG  F.  The gun is then operated to feed powdered alumina on to the rod which is then allowed to cool in air.ALSO:In a method of and apparatus for flame-spraying fusible powders, the powder is entrained in a small volume of carrier gas and led at a relatively low velocity for the flame centre and, due to the relatively high velocity of the combustion gases, is accelerated by the flame towards the surface to be sprayed.  The flame spray gun described is similar to that described in Specification 829,370 [Group XXIX] with the gun passageways &c. suitably dimensioned and the gun suitably adjusted.  Example of flame-spraying a self-fluxing boron-silicon-nickel base alloy on to a mild steel plate are described, in one of which the plate is grit-blasted and heated to about 250 DEG F and then sprayed with the powdered alloy.  The plate is then allowed to cool in air before grinding the coated surface to the desired thickness. Alternatively, before the grinding operation the coating is fused by heating it to a temperature of 800 DEG -1000 DEG F., and then raising the temperature to 1900 DEG -2100 DEG F. by a conventional torch.  In a further example, after a coating of powdered alloy has been applied, the coated plate is heated to between 1200 DEG -1400 DEG F. and a further coating applied to the hot surface.  The self-fluxing boron-silicon-nickel base alloy may have the composition C 0.7-1%, Si 3.5-4.5%, B 2.75/3.75%, Fe 3-5%, Cr 16-18%, Ni balance.  Other coating materials referred to are molybdenum, zinc, aluminium, aluminium-bronze, stainless steel, nickel-chromium alloys and boron-nickel base self-fluxing alloys. The coating of iron and ceramics is also disclosed.
Patent GB-901024-A (GB)
Title: Improvements in and relating to air-cooled heat exchangers
Inventor: WEISSE KARL
IPC: F28B1/06
Filed: 1959-03-10
Abstract: 901,024. Air - cooled heat - exchangers. HAPPEL G.m.b.H., [trading as GEA LUFTKUHLERGESELLSCHAFT HAPPEL G.m.b.H. & CO. KOMM.-GES.]. March 10, 1959, No. 8278/59. Class 64 (3). [Also in Group XII] In apparatus in which a stream of air cooled by moistening is forced by a fan 3 over finned heat exchange elements 1, 2, carrying a gas or liquid to be cooled or steam to be condensed, spray nozzles 14, 15 are arranged at the suction side of the fan and means for trapping and separating entrained liquid are arranged between the fan and the heat exchange elements and extend at most only slightly into the path of the air. In the form shown, entrained liquid in the stream of cooling air is thrown by the fan on to the wall of the fan housing 12 whence it is carried to the upper end of the housing and over a rim 12a forming the lower boundary of a slot 24, the upper boundary of the slot being formed by the lower projecting edge of a conical member 10. Separated liquid passing through the slot 24 is collected in a channel 25 whence it flows through a drain conduit 26 into a floatcontrolled reservoir 21. Liquid is supplied to the nozzles 14, 15 from the reservoir by a pump 20. Any separated liquid which fails to enter slot 24 flows downwardly and is collected in a channel 27 from which it is directed to the reservoir through a conduit 28. A further form of apparatus is described in which the fan rotates on a horizontal axis and in which the heat exchange elements extend vertically.
Patent GB-609592-A (GB)
Title: Improvements in inertia locks
IPC: B60R22/415
Filed: 1946-03-18
Abstract: 609,592. Automatic locks for safety harness. QUILTER, J. R. C. March 18, 1946, No. 8334. [Class 44] [Also in Group XXX] In the event of a collision the straps of a safety harness are locked by an inertia lock attached to the back of the pilot's chair. The lock, shown in section in Fig. 4, comprises a toothed member 34 rotatable with a drum 12 on which the strap is wound, one or more locking bolts 33 adapted to engage the toothed member and means for retaining the bolt or bolts out of engagement including at least one weighted and spring-loaded lever arranged to release or force a bolt into locking engagement with the toothed member when subjected to shock or acceleration in excess of a predetermined limit. Fig. 5 shows the lever which comprises a rocker 31 carrying two weights 32 and maintained by a spring-loaded link 58 in its normal position until a shock causes the weight to turn the rocker and the spring loading is transferred to the opposite side of the axis to force the bolt 33 into engagement with the toothed member. The rotatable member carrying teeth 34a, Fig. 4, consists of a drum 35 loaded by a clock spring 36 which allows the strap to unwind and rewind. The spring 36 is secured to a rotatable sleeve 41 on the drum shaft. The sleeve 41 is .coupled to another sleeve 42 which carries flats and is normally held against turning by a sliding bar 15a having a key-hole slot. This bar is operated by a hand lever on the chair and may take any of four positions. In one of these, the harness is released, the rocker 31 being held against operation and the sleeve 42 allowed to turn with the drum 12. Straps engaging the occupant's legs are also released in this position. In another position the rocker 31 is turned to shoot the locking bolt and so lock the harness. The bar is moved to a third position to reset the lock and the fourth position is for normal operation. In a modification, the lock comprises a base-plate which carries a bearing for the drum spindle and a pair of blocks bored to receive two slidable spring-loaded locking bolts. Each bolt is retained by a separate rocker responsive to shocks in vertical and horizontal directions respectively. A single resetting lever is provided to restore both bolts to the normal position. Another lever releases one of the bolts to engage and lock the rotatable member. Specification 606,022, [Group VII], is referred to.
Patent GB-180467-A (GB)
Title: Improvements in aeronautical machines of the helicopter type
IPC: B64C27/04
Filed: 1921-03-17
Abstract: 180,467. Porter, J. R. March 17, 1921. Screw propellers.-A propeller is located in a Venturi tube, the cross-sectional area of which, in front of the propeller, is reduced by spoolshaped radial guides. As applied to marine vessels, the propeller is mounted in an axial body part l in a Venturi-shaped casing k, which also carries the four radial guides m. A rear part l' of the central body may rotate with the propeller.
Patent GB-139908-A (GB)
Title: Improvements in or relating to mops
IPC: A47L13/22
Filed: 1919-04-03
Abstract: 139,908. Prentis, A. E. April 3, 1919. Reservoir arrangements; mops.-A reservoir mop comprises a base-plate 1, a detachable container 20 held by clips 2 and containing fluid controlled by a needle valve 23, and a perforated distributing-tube 30 integral with or secured to the underside of the plate and surrounded by the detachable mop-fabric. A cord buffer 50 may be held in guide-tongues 40 attached to or integral with the base-plate and bent alternately up and down, and by somewhat similar spring clips. The detachable fabric 60, which may be used separately as a duster, is absorbent and heavily fringed, and is attached by internal or external spring clips 70 engaging over the distributing-tube 30. The handle is pivoted to lugs 13.