baber/WOPTO huggingface dataset:
Patent GB-649983-A (GB)
Title: Extractive distillation process
IPC: C07C7/08
Filed: 1947-12-23
Abstract: <PICT:0649983/III/1> Two components or groups of components of a mixture are separated by submitting the mixture to extractive distillation using two liquids A and B and operating so that only a single liquid phase is present in the distillation zone; the liquid (B) of lower overall solvent power for the components is chosen so as to have greater solvent selectivity for one component or group than has the other liquid (A), and at least part of liquid (B) is introduced into the distillation zone below the inlet of liquid (A). The vapour withdrawn from the distillation zone is rich in one component or group while the extract is a solution of the other component or group in both liquids (A) and (B).  Examples of mixtures which may be separated are: cyclohexane and trimethylbutane, methylcyclopentane and n-hexane, methylcyclohexane and n-heptane, cyclopentane and dimethylbutane, toluene and dimethylhexane, toluene and methylcyclohexane, butadiene and butene, n-butane and n-butenes, phenols and thiophenols, fatty acids having different degrees of unsaturation such as oleic, linoleic and linolinic acids, allyl alcohol and propyl alcohol, ethyl alcohol and crotonaldehyde, butadiene and ethyl chloride, ethylene glycol and diethylene glycol diethyl ether.  Suitable pairs of liquids for the separation of hydrocarbons are: acetone and water, dimethylsulpholane and water, phenol and water, aniline and water, cresol and phenol, dimethylaniline and aniline.  Relatively non-polar substances may be separated using acetone and dimethyl phthalate, or acetone and ethylene glycol.  There should be at least about 2 parts by weight of liquid (B) for every 98-100 parts of liquid (A); and the weight of both to that of the distilland should be between 1 : 1 and 10 : 1.  A feed mixture of narrow boiling range containing C4 paraffins and olefines is vaporized and fed, under superatmospheric pressure if desired, through line 11 into column 12.  Acetone is admitted to the column through line 14; and water is admitted through line 17 and any one or all of lines 19, 20, 21.  If desired a portion of the water may also be admitted through line 14.  Paraffin vapours flow over partial condenser 15 and leave the column overhead; they are condensed in condenser 22, and the condensate is separated as an upper layer from entrained extracting liquid in separator 24.  The extracting liquid is returned to the column through lines 25, 26 and any one or all of lines 14, 19, 20, 21.  The solution withdrawn from the base of column 12 through line 30 is passed to column 31 where the olefines are vaporized and pass overhead to condenser 32.  Water is taken off from column 31 through line 37 and is returned to column 12 via line 26.  Acetone is taken off from column 31 through line 38 and is returned to column 12 through line 14. Specification 563,930 is referred to.
Patent GB-389198-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01J40/00
Filed: 1931-12-08
Abstract: 389,198. Photo-electric cells. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 8, 1931, No. 34065. Convention date, Dec. 11, 1930. [Class 39 (i).] A cell contains within a single envelope two chambers separated by a gastight membrane, one chamber being evacuated and containing a photo-electric cathode, and the other chamber, formed by a closed tubular metal electrode, containing a gas and enclosing an electrode ; electrons emitted from the cathode pass through the membrane closing one end of the tubular electrode, and ionize the gas. As shown, the ionization chamber consists of a cylindrical electrode 9 enclosing a rod electrode 10 and closed at one end by a metal foil window 5 through which electrons pass from a photo-electric cathode 4. The electrode 9 contains argon or hydrogen or a mixture of these, and the chamber containing the electrode 4 may be connected with a pump. A screen 11 prevents the passage of electrons to the electrode 9. The window may be supported by a grid, and is maintained at a high positive potential or an alternating potential may be applied between the window and the cathode. 'The Specification as open to inspection under Sect. 91 comprises also a cell in which the electrodes in the ionization chamber consist of interlaced helices. This subject-matter does not appear in the Specification as accepted.
Patent GB-815454-A (GB)
Title: Improvements in or relating to chlorinated paraffins
IPC: C10G73/38
Filed: 1957-11-01
Abstract: Liquid chlorinated paraffin waxes are prepared by contacting a molten paraffin wax with gaseous chlorine at a chlorination temperature below 90 DEG  C., maintaining this temperature until up to 33 per cent of the desired chlorination has been obtained and then raising the chlorination temperature to between 90 DEG  and 100 DEG  C. and continuing the chlorination until the desired amount of chlorine has been reacted.  The paraffin wax treated may be any paraffin wax or oil including those derived from petroleum distillates of mineral oils of the mixed and paraffin based types, preferably a long chain paraffin containing 18 to 28 carbon atoms and having a melting range of about 28 DEG  to 65 DEG  C.  The reaction is preferably carried out with a first stage chlorination temperature of 60 DEG  to 90 DEG C. using chlorine under pressure to give a final product containing 30 to 50 per cent chlorine by weight of the wax.  The chlorinated product is said to have a uniform light colour and good heat stability.  In an example a paraffin wax melting at 49-53 DEG  C. and kept 15-20 DEG  above its melting point is treated with chlorine at 80-85 DEG  C. for 20 hours so that 33 per cent of the desired chlorination is obtained, the chlorination is continued for 40 hours at 90-95 DEG  C. to give a product containing 40 per cent chlorine.
Patent GB-797380-A (GB)
Title: Connecting and securing device
IPC: F16B21/07
Filed: 1955-11-29
Abstract: 797,380. Stud and socket fasteners; screw fasteners; locking bolt-like pins. BAYETTO, A. Nov. 29, 1955 [Dec. 24, 1954], No. 34200/55. Classes 44 and 89(1) A connecting and securing device wherein a bolt is clamped in position by at least one elastically deformable sleeve or socket is characterized by the provision on the bolt shank of at least one annular or helical peripheral rib the shape in cross section of the or each of which in all planes passing through the axis of the bolt being substantially triangular and the side or sides facing the members to be secured extending in a direction perpendicular or substantially perpendicular to the axis of the bolt. In the embodiment shown in Fig. 1 a single helical rib is provided on the bolt shank and the bolt has a head 2 so that a single socket 3 only is necessary. The socket is provided with a flange 4 and its end nearest the head of the bolt and with longitudinally extending ribs. In a modification a sleeve is used instead of a socket and instead of a helical rib the bolt has a plurality of annular ribs. In a further modification the bolt has no head and is symmetrical about a median transverse plane so that two sleeves are used one on each half of the bolt. In any of the above constructions the shank of the bolt can taper in the manner of a wood screw and the socket or sleeve has a correspondingly tapering bore.
Patent GB-872415-A (GB)
Title: Lifting jacks
IPC: B66F3/08
Filed: 1959-10-09
Abstract: 872,415. Screw jacks. STORZ, M., and PLISCHKE, W., [trading as STORZ OHG., E. A.]. Oct. 9, 1959 [Oct. 23, 1958], No. 34253/59. Class 78 (3). A lifting jack comprises a non-rotatable screw 11 in engagement with a nut 23 secured to a rotatable tube 12 which supports a lifting crutch 40, a pinion 45 secured to the sleeve, and an actuating tooth 50 rigidly secured to a sleeve 48 which is mounted on the tube 12 for rotation about the axis of the tube and which is vertically deflectable from position a, in which the tooth is disengaged from the pinion, to position b, in which the tooth engages with the pinion. Oscillation of the sleeve in position b by a handle (not shown) inserted in socket 49, effects rotation of the tube to extend or retract crutch 40. A spring (not shown) urges the tooth either into or out of engagement with. the pinion. The lifting crutch 40 is rotatably supported on the tube 12 by a ball-bearing 31.
Patent GB-854311-A (GB)
Title: Improvements in or relating to sluice valves
Inventor: LIVINGSTON ALEXANDER CUNNINGHA
IPC: F16K3/18
Filed: 1955-11-30
Abstract: 854,311. Valves. GLENFIELD & KENNEDY Ltd. Feb. 26, 1957 [Nov. 30, 1955], No. 34260/55. Class 135. In a sluice valve including a valve body 1, and a valve member which is in two parts, one forming a cylinder 3 and the other forming a piston 4, a pipe 12A leads pressure fluid which is supplied, e.g. from an exterior source, via the interior of the operating spindle 7A to the cylinder for forcing the sealing face of each part 3, 4 against its seating face in the body when the valve is in any operative position. The supply and exhaust of pressure fluid from the cylinder is controlled by an exterior valve, and before operating the sluice valve, which may be by manual hydraulic or electrical means, the pressure is exhausted to relieve the seating force so that the valve member can slide easily in its guides. The sealing faces and their corresponding seats may be parallel or inclined relative to one another.
Patent GB-1338174-A (GB)
Title: Tuners
IPC: H03J5/12
Filed: 1971-07-21
Abstract: 1338174 Toothed gearing GENERAL INSTRUMENT CORP 21 July 1971 [23 Oct 1970] 34313/71 Heading F2Q [Also in Division H3] In a tuner having a housing assembly 12 and an adjustable tuning element 10, 14 operatively coupled to a body 17 which slides over a guide surface on a guide member 46, 48 mounted in the assembly, a gear 38, 40 is rotatably mounted in the housing and meshes with a rack gear 34, 36 on the body 17, resilient means 50, 52 applies a force between the member 46, 48 and the gear 38, 40 and the force is transmitted through the sliding engagement of the member 46, 48 and the body 17 to the rack to reduce backlash in the meshing engagement of the gear and rack. As shown resilient means 50, 52 urge the guide bars 46, 48 into engagement with parts 18, 20 of the body 17 so that the rack gears 34, 36 engage the gears 38, 40 to eliminate backlash. The guide bars 46, 48 are made from or have bearing surfaces composed of a material having a low coefficient of friction, such as plastics, e.g. Teflon (Registered Trade Mark). Manual tuning is effected via a crown wheel (82, Fig. 5, not shown) and a friction clutch (76) which is biased by a spring (90) into engagement with a clutch plate 63 attached to a shaft 66, 62. The shaft 62 drives via a gear 60 which meshes with the gear 38 which operates the gear 40 by rocker bars 57, 58 so as to drive the racks 34, 36 and adjust the tuning cores 14 of the coils 10. The spring (90) and spring 70 bias the shaft 62 to the right so that a tapered section 74 co-operates with a wedge-shaped slot 68 in the side 22 of the housing to maintain the gears 38 and 60 in mesh and eliminate backlash. When pushbutton tuning is required pressing a pushbutton 56 declutches the clutch (76) 63 by sliding a plate (86) to the left so that the rocker bars 57, 58 are released and move to the angular position preset by the pushbutton. The tuner may be used in a car radio.
Patent GB-622256-A (GB)
Title: Calendering device for natural or synthetic rubber or similar materials
IPC: B29B7/58
Filed: 1946-11-20
Abstract: 622,256. Rubber calenders. LANDAU, F., NORBERG, J. G., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Nov. 20, 1946, No. 34364. [Class 87 (ii)] Each roller 1, which may be adjusted to any slight degree of obliquity, is connected to its own electric motor 14 through a flexible coupling 2 by independent gear trains 5 ... 12 housed in a casing 4 to which the motors are secured. The last gears 12 are staggered so that they may be large, whereby large torques may be transmitted without excessive tooth pressure.
Patent GB-737852-A (GB)
Title: Fishing-line reeling apparatus
IPC: A01K89/017
Filed: 1953-12-10
Abstract: 737,852. Winding apparatus. CHRISTIANSEN, T. N. Dec. 10, 1953 [Dec. 10, 1952], No. 34379/53. Class 78 (5). [Also in Group VI] In an automatic fishing-line reeling apparatus usable in bait jigging, the line drum, after a predetermined number of letting-out turns, is coupled under control of an adjustable control device to a driving shaft to reel-in the line. The line may be jigged by oscillating the drum under electrical control and when a fish bites the extra tension on the line causes relative rotary and axial movement of the drum on its shaft to render the electrical control for the oscillating of the drum ineffective to allow the drum to continue in the reeling-in direction until the drum is uncoupled from the driving shaft by the action of the control device, at which moment holding means operate to prevent the load on the line rotating the drum in the letting-out direction. Alternatively the line may be drawn in continuously at a variable speed by mounting the reeling part of the drum eccentrically on the shaft. As shown, a gear wheel 18 is rotated by a pinion 17 on the drum shaft 10 and carries adjustable pins 21, 211 which on rotation of the wheel, contact lever 22 which operates a switch in the energizing circuit of the electromagnetic coupler 8, 25 so that after a length of a line has been let out, the electromagnet 25 is energized to couple the drum shaft 10 and continuously running driving shaft 5 to rotate the drum 11 in the reeling-in direction until a cam 29 on the end of the drum contacts a press button 27 of a double press button switch 26 connected in the energizing circuit of the electromagnet 25 to open the circuit and stop rotation of the drum whereupon the sinker causes the drum to unwind until another projecting cam 30 contacts the other press button 28 to reclose the energizing circuit of electromagnet 25. This action is repeated until a fish bites whereupon the drum is moved rotatably and axially relative to the shaft 10 by the pin and slot connection 13, 14 to be held by a releasable catch 16 and take the cams 29, 30 out of the range of action with the switch 26 which is closed so that rolling-in progresses until the stop 21<SP>1</SP> contacts lever 22 and opens the energizing circuit of electromagnet 25. A solenoid 31 also in the said circuit is de-energized projecting its armature 31<SP>1</SP> to contact a projection 32 on the drum to hold this latter from rotation by the fish and sinker. Alternatively an electromagnet may be energized by operation of lever 22 when the electromagnet 25 is de-energized. A lever system 33 operated by lever 22 displaces the switch 26 out of range of the cams 29, 30 when the drum rotates in the unwinding direction.
Patent GB-1436790-A (GB)
Title: Switching circuits comprising a gate controlled switching device
IPC: H03K17/723
Filed: 1973-07-19
Abstract: 1436790 Gate-turn-off thyristor circuits; line time-base circuits SONY CORP 19 July 1973 [6 Oct 1972] 34568/73 Heading H3T The gate of a gate-turn-off thyristor 4 switching a D.C. supply connected to an inductor 6 and via a diode poled to pass turn-off current, to an A.C. control signal source. Turning on a transistor 1 produces a negative pulse in winding 3b which passes an initially high turn-off gate current for the thyristor, the gate current reducing as it diverts to the inductor 6. When the transistor is turned off the inductor 6 discharges into the gate to provide turn-on current. Inductor 15 and resistor 14 reduce the noise sensitivity. The circuit shown is a television line time-base in which 10 are the deflection coils, 8 the damper diode and 11 the waveform shaping capacitor.
Patent GB-193210-A (GB)
Title: Improved sand gear operator for electric and other vehicles and locomotives
IPC: B61C15/10
Filed: 1921-12-23
Abstract: 193,210. Clark, H. Dec. 23, 1921. Sand, distributing on wheel tracks.-Mechanism for operating the gear rods of a sanding device comprises a hinged pedal which engages the usual bell crank lever through the intermediary of a hinged pin which can be laid flat against the underside of the pedal when it is in its inoperative position. The pedal b is hinged at k to a casting d let into the floor-boards of the vehicle, and carries a hinged pin c which is guided in a hole d in a lug m of the casting. The pin c operates a bell crank e which is connected to the sand valve by the usual rods and which is tensioned by the adjustable spring f. Before the driver changes the driving. end of the vehicle the pedal b is raised until the pin c clears the hole l in the lug m; the pedal is then lowered so that the pin c lies flat against the underside of the pedal in the closed position.
Patent GB-297259-A (GB)
Title: Improvements in or relating to the base lever system of platform weighing machines
IPC: G01G21/00
Filed: 1927-12-21
Abstract: 297,259. Avery, Ltd., W. &. T., and Sykes, C. M. Dec. 21, 1927. Compound-lever apparatus.-The platform of a weighing machine is mounted on members which are suspended from a pair of base levers by means of swinging shackles, the base levers being connected to a common transfer lever which is fulcrumed on a fixed bearing. The platform 4 is secured to cross-bars 6 provided with horned brackets 6<a> by means of which the platform is slung by links 7, and horned brackets 8, from two levers 9, 18 of open yoke formation. The levers 9, 18, are slung from the frame 16<a> by links 12, 21 and are connected by links 25 to a transfer lever 26 of open yoke formation fulcrumed on brackets 29 depending from the frame. In order to permit the leverage of the system to be varied, the levers 9, 18, 26 and the frame are provided with additional holes 9<b>, 18b, 26b and 16b for the reception of the steels of the various knife-edges.
Patent GB-483811-A (GB)
Title: Improvements in or relating to the mould units of apparatus for manufacturing edible containers such for example as cups or cones
IPC: A21B5/02
Filed: 1937-12-14
Abstract: 483,811. Making wafer biscuits. BRITISH HAVACONE CO., Ltd., and MARSHALL, E. L. Dec. 14, 1937, No. 94639. [Class 28 (i)] In a wafer cup or cone making machine of the general type described in Specification 134,641, [Class 28 (i)], wherein each mould unit comprises a mould and a hinged top arm co-operating therewith, the mould and top arm are furnished with co-operating registration surfaces lying above the level of the batter within the mould, the said surfaces ensuring accurate clearance and centring of the arm with respect to the mould. As shown, the part A is mounted to rotate with the carrier (not shown) about the centre post of the machine, and is provided with lugs A<1> carrying a vertical pin B on which the two separable mould parts B<1>, B<2> can pivot. The arm C is connected by a horizontal pivot C<1> to the part A, and is provided with a slot C<2> through which the pin B projects. Depending parts F on the arm C have V-shaped recesses F <1> with flat bottoms F<2> which engage correspondingly shaped ribs G on the mould parts B<1>, B<2>, this engagement producing the accurate centring. Centring is assisted by the engagement of shallow rims D<3> to which the cores Dare secured by bolts D<1>, with the mouths of the mould cavities. In a modification, the recesses F<1> and the ribs G have vertical inner faces. The registration surfaces may be provided on one side only of the mould and arm, and they may be of any desired length. The surfaces may be arranged transversely to the length of the unit, and ribs on the arm may engage grooves in the mould parts B<1>, B2. The cups produced may be shallow or deep, of elongated, polygonal or circular section and may have straight or curved side walls of either con. tinuous, basket or perforated form.
Patent GB-1269831-A (GB)
Title: Side-frames for bogies of railway wagons
Inventor: MACDONALD JOHN FORD SEWELL
IPC: B61F5/52
Filed: 1969-07-10
Abstract: 1,269,831. Railway bogies. J. F. S. MacDONALD. 30 Sept., 1970 [10 July, 1969], No. 34714/69. Heading B7L. A railway wagon bogie side frame comprises flanged plates 1 and 2 arranged in parallel relationship and having spacers 3, 4, 5 and 6 of cast steel between them, the whole being riveted or bolted together. The spacers 3 and 4 are adapted to be engaged by chafing surfaces of a bolster located within a flanged aperture of the sideframe, said bolster resting on coiled spring supported by a platform 7. The spacers 5 and 6 locate the adapters for axle roller bearings. A plate 8 riveted to the bottom flanges of plates 1 and 2 strengthens the side frame.
Patent GB-295542-A (GB)
Title: Spinning top
IPC: A63H1/02
Filed: 1927-12-22
Abstract: 295,542. Lehmann, E. P. Nov. 29, 1927, [Convention date]. Tops for spinning on surfaces; spinning tops, means for.-Relates to tops of the kind wherein a spindle protrudes through the central axis of the rotating body and is provided on one side of the body with a right-hand thread and on the other side with a left-hand thread, the parts of the spindle being engaged by two nuts which when drawn apart cause the top to rotate, and consists in providing one or both nuts with a pla.te to receive the top upon the removal of the nuts from the spindle. The threaded spindle h, Fig. 1, of a top i engages holes g in two mutually pivoted arms a, b, the arrangement being such that upon the movement of the arm a to the position shown in chain lines, the spindle is freed from the arms and the top spins on a plate k attached to the lower arm b. In a modification, Fig. 3, two plates k<1>, k<2> are apertured to receive the spindle and are provided with operating handles n, o. The plate k or plates k<1>, k<2> may be plane or concave, and may be provided with an upstanding rim.
Patent GB-842757-A (GB)
Title: Art of metal coating
IPC: C23C2/34
Filed: 1957-11-08
Abstract: 842,757. Coating by dipping. SCHREYER, E. P., and WHITFIELD, M. G. Nov. 8, 1957 [July 30, 1957], No. 34930/57. Class 82(2) In a method of forming a protective coating on a metal article, the article is dipped in a bath of molten aluminium or aluminium alloy which forms, by diffusion, an alloy with the base metal, subjected to vibration in the bath, removed from the bath and, with the deposit of metal thereon in a molten condition, brushed to remove excess of said metal from the coated surface. Articles which may be coated are valves, valve guides and turbine blades. The apparatus shown is used for coating valves V and comprises a drum 17 which may be rotated into four positions A, B, C, D by jack 112. Plates 35 carry spindles 71 on which are mounted the valves to be coated. When the spindles are at position A, the valves are mounted thereon. On rotation through 90 degrees to postion B, the valves are immersed in pot P of molten aluminium and associated plate 35B vibrated. On further rotation, the coated valves are moved to position C where excess metal is wiped off by brushes (not shown) driven by shaft 167. The finished valves are finally moved from position C to position D and then to position A where they are removed and replaced by fresh valves to be coated.
Patent GB-208387-A (GB)
Title: Improvements in or relating to sheet-metal cutting machinery
IPC: B23D33/04
Filed: 1922-12-23
Abstract: 208,387. Duxbury, J. A., and Butterfield, Ltd., W. P. Dec. 23, 1922. Copying and reproducing mechanism. - Sheet metal is cut along a curved line by providing adjustable guides on a table on the delivery side of the shearing-cutters. The delivery table T is slotted and has mounted thereon adjustable guides which may be grooved rails B or a series of grooved rollers Bx. Curved plates 0 serve to lead the cut strip downwardly from the level of the cutters so that it may enter the guide-rails &c. Spring fingers B<7> and an adjustably mounted roller D may be provided to prevent buckling. A positioning stop F<1> may be mounted on the front table F.