baber/WOPTO huggingface dataset:
Patent GB-1177721-A (GB)
Title: Process for Separating Ethylbenzene from a C8 Fraction
IPC: C07C7/152
Filed: 1968-01-10
Abstract: 1,177,721. Separating C 8  aromatics. JAPAN GAS-CHEMICAL CO. Ltd. 10 Jan., 1968 [20 Jan., 1967; 21. Jan., 1967], No. 1487/68. Heading C5E. Ethyl benzene is separated from a mixture containing it together with the xylene isomers by extraction in countercurrent with HF and BF 3  in the presence of a reflux xylene mixture containing substantially no ethyl benzene, recovering ethyl benzene as raffinate, and removing the xylenes as a complex in the HF phase. The reflux xylene is suitably an isomerization product of m-xylene. The xylenes extracted as complex may be contacted with a saturated hydrocarbon or halogenated hydrocarbon, without decomposing the complex, optionally in the presence of reflux m-xylene, so as to extract the o-xylene and p-xylene, leaving the w-xylene as: a complex, from which it may be recovered by heating. The o-xylene and p-xylene may be separated from each other by distillation. This overall process is described with the aid of a flow-diagram, each C 8  aromatic, being individually recovered, and some of the m-xylene being isomerized to provide the reflux xylene first referred to, the isomerization catalyst being the HF phase from the second extraction.
Patent GB-1254753-A (GB)
Title: Device for stereovision x raying
IPC: A61B6/02
Filed: 1969-01-12
Abstract: 1,254,753. X-ray stereoscopic apparatus. POLITECHNIKA WARSZAWSKA. 10 Jan., 1969 [11 Jan., 1968], No. 1597/69. Headings H4F and H5R. Apparatus for producing stereoscopic X-ray pictures includes two X-ray tubes for alternately X-raying an object, an image intensifier with a fluorescent screen, and means for displaying the images produced on the screen alternately to the eyes of an observer in such a manner that one eye views only the image produced by one tube, the other eye views only the image produced by the other tube, and the light received by both eyes is similar in wavelength and polarization characteristics i.e. coloured or polarizing filters are not employed. As shown, the beams from the two X-ray tubes 2, fed by the high tension generator 1, are each directed, at an angle to the axis of the system, towards the object 3 to be examined, which is placed in front of the photocathode 4 of an electronic image intensifier 5 having a fluorescent output screen 7. The movable diaphragm 17, which is synchronized with the high tension generator, permits the pictures produced on the screen by the first and second X-ray tubes to be viewed by a first and second television camera 9, respectively, which reproduce the pictures on the screens 13 for projection upon the mirrors 14 of a stereoscopic viewing system. Alternatively, the television camera 9 may be replaced by the two arms of a binocular direct viewing system (Fig. 1, not shown). In a further arrangement (Fig. 3, not shown) the movable diaphragm 7 and television camera 9 are replaced by a single shortmemory television camera and an electronic switch synchronized with the generator. The apparatus may be employed in the examination of time-varying subjects e.g. the lungs or the blood circulatory system.
Patent GB-566289-A (GB)
Title: A locking device for a bicycle tyre pump
IPC: B62J11/02
Filed: 1943-02-01
Abstract: 566,289. Cycle pump locks. LEARMONT, H. M. Feb. 1, 1943 No. 1628. Convention date, May 6, 1942. [Class 136 (i)] A bicycle pump lock comprises a box-like enclosure which can be shut round the pump handle and the supporting cycleframe tube and locked with a padlock and clasp which may also serve to secure a wheel-locking chain. The halves of the box, hinged together at 1b and 1c, fit closely above and below the frame tube 6 and are recessed at 7 to engage the pump clip 8 above its enlarged end 8a so positioning the box. The lower end of the box snugly encloses the frame 6 and pump 10. A pivoted clasp 3 and apertured projection 2 are fitted for securing by padlock and serve also for securing a chain to lock the cycle wheel. Where a removable pump clip is used, the box is placed with its top above the clip on the frame tube.
Patent GB-253564-A (GB)
Title: Improvements in or relating to holders for movable inductance coils
IPC: H01F27/00
Filed: 1925-10-19
Abstract: 253,564. Igranic Electric Co., Ltd., Curtis, A. H., and Holdway, G. Oct. 19, 1925. Collectors.-In inductance-coil holders in which the coils are rotatable about either of two axes selectively by the operation of a single control shaft passing through, and supported by, the panel of the instrument, each coil is supported by plug contacts 16, 19, Fig. 1, on a base fitting into a socket 7. The socket 7 is rotatably mounted in a lug 9<a> of an arm 9 and is geared to a shaft 8 within the arm 9, axial rotation of the shaft 8 thus rotating the coil about a diametrical axis through the socket 7 parallel to an axis B about which the coil is moved by swinging movement of the shaft 8. The contact 16 is connected through a bolt 18 and through the parts 7, 9 to a terminal 23, whilst the contact 19 is connected to a terminal 22 through a metal ring 21 and a bent wire 20 engaging a groove in the ring 21, the terminals 22, 23 being at opposite ends of an insulating post 24. In a modification with coils having diametrically-opposite contacts 2, 3, Fig. 2, one contact 3 engages a socket 7 mounted and controlled similarly to the socket 7, Fig. 1, and the other contact 2 is connected to a terminal 5 by a flexible lead 4 having clip-on connectors 2<a> rotatable on the contact 2 and terminal 5. The arm 9 is pivoted to a block 31 mounted on a slotted cap 32 carrying a terminal 35 and concealing the hole in the panel 6. In another modification, one coil-contact 39, Fig. 5, engages a socket 40 rotatable in a bearing 41 itself rotatable in a bracket 42 on the panel 6 and the other coil-contact 38 engages the end of a metal strip 50 pivoted to a terminal 49 on the panel, the coil being controlled by a pivoted handle 46.
Patent GB-682836-A (GB)
Title: Improvements in or relating to presser plate latch for self-wringing mops
Inventor: O'CONNOR PHILIP KEVIN
IPC: A47L13/146
Filed: 1951-01-23
Abstract: 682,836. Mops. O-CEDAR CORPORATION. Jan. 23, 1951, No. 1709/51. Class 19. In a self-wringing mop of the type comprising a presser plate 13 hinged to the rear edge of the mop head 4, a fastener is provided for locking the plate 13 in a raised position. The fastener comprises a tongue 18 projecting from the edge of the mop head and having an upwardly-inclined arcuate portion which frictionally engages a corresponding portion 24 of the edge of the presser plate. The tongue 18 is provided with a land 26 for retaining the plate 13 in the raised position; alternatively, a rivet, Fig. 6, (not shown) may be attached to the tongue for this purpose.
Patent GB-799233-A (GB)
Title: Improvements in window sashes
IPC: E06B3/263
Filed: 1956-01-18
Abstract: 799,233. Windows. PERSSON, E. S. Jan. 18, 1956 [Nov. 8, 1955]. No. 1750/56. Class 20(3) In a window sash construction the space between outer and inner panes 16 18 is divided, by a middle pane 20, into two compartments 22, 24 which communicate with each other through, spaces around the upper and lower edges of the middle pane 20, the sash frame being composed of interlocking inner and outer frame parts 12, 10 which are separated by a heat insulating strip 14. A strip 44 is provided to strike a fixed frame 1. The upper and lower  edges of the middle pane 20 are wedged in a groove 28 in the inner frame part 12 i by means of distance pieces 30 the faces of the groove, spaced from the corresponding edge of the middle pane forming, between the distance pieces 30, the communicating passages between the two compartments 22, 24. Resilient strips 38 seal the inner pane 24 in a groove 36 in the inner frame part 12, and the outer pane 16 in a groove 34 formed between an end wall 40 of the inner fame part 12, and an opposite flange 42 on the outer frame part 10. The side edges of the middle pane 20 are completely sealed in the groove 28, how-. ever, the side edge portions adjacent the upper and lower edges of the pane may be left free in a manner similar to that employed at the upper and lower edges. In a modification, Fig. 7, the middle pane 20 is accommodated in a groove 28 in a metal insert 46 mounted on a generally U-shaped inner frame member 12 which' is interlocked, with the interposition of an insulation layer 14, with ,a ,generally T shaped outer frame part 10, the inner and outer panes 18, 16 being received in grooves 34, 36 formed respectively between one end .52 of the insert 46 and a flange 48 on the outer frame part 10, and the other end 54 of the insert and a flange 50 on the inner frame part 12. In a further modification, not shown, the insert is formed of hard rubber. The middle pane can consist of glass, or plastic, and may be made of a soft material having good heat msulating properties.
Patent GB-1036862-A (GB)
Title: Improvements in or relating to hay making implements
IPC: A01D78/10
Filed: 1963-03-11
Abstract: 1,036,862. Haymaking machines. C. VAN DER LELY N.V. March 11, 1963 [March 23, 1962], No. 1751/66. Divided out of 1,036,861. Heading A1F. In a haymaking machine of the type having a series of power-driven rotary rake-heads 15, 16, 17 mounted on a beam 1 arranged tranverse to the direction of travel, the rake-heads being driven by gearing 52, 53 mounted at one end of the beam, this end being also provided with a drawbar 60 enabling the beam to be adjustably pivoted to a tractor about a vertical axis. The shaft 7 carrying the gearing 52 passes through the beam and carries the rake-head 15 on its lower end, the head being supported by a caster-wheel 2 mounted within it. The remaining heads are driven by chain or belt-gearing 46, 47 from the head 15. The head 17 at the outer end of the beam is mounted on a sleeve surrounding the axle 13 of a caster-wheel 3, the upper end of the axle carrying an arm 69 linked to the pivoted drawbar 60 so that the wheel 3 moves with the drawbar and acts as a direction-control wheel. The drawbar the the caster-wheels 2, 3 do not move about vertical axes so that the rake-heads tend to be lifted when the drawbar is swung into the position 60B. Between the rake-heads are mounted screens 71 which are each co-axial with the conical surface of revolution of the tines of the adjacent rake-head. Each screen is extended rearwardly by a pivoted extension 72 oppositely curved to the screen. The rake-heads (Fig. 4, not shown) each comprise spokes radiating from a hub and having double tines fixed on their outer ends, the double tines extending downwardly and outwardly relatively to the spokes to which they are connected by coiled-spring ends.
Patent GB-489232-A (GB)
Title: Improvements in aircraft instruments
IPC: G01C19/44
Filed: 1937-01-21
Abstract: 489,232. Inclinometers for aircraft; gyroscopic apparatus. PHILLIPS, A. C., and KAPELLA, Ltd. Jan. 21, 1937, No. 1759. [Classes 97 (ii) and 97 (iii)] A pointer driven by a rate of turn responsive gyroscope and a second pointer under the combined control of the gyroscope and a lateral pendulum are arranged to move in the same direction and at the same speed when the aircraft is correctly banked during a turn. As shown, the pointer D<2>, having wings D3, is connected to the driven wheel D of a differential gear which includes a wheel C<5>, driven by the lateral pendulum C, and planet wheels B<8> in a frame B<7>, driven by the gyroscope B through the pin-and-slot connection B<5>, B<6>. The pointer E is driven from the frame B<7> through gearing E2, E,<3> E<4>, E<5>, so as to move at the same speed as the pointer D<2> when the pendulum remains stationary relatively to the outer casing A, i.e. when the aircraft is properly banked. Fore and aft inclination may be indicated by a pointer G<2> driven by a pendulum G through a pin-and-slot connection. In a modification, the pointer E and the wheel C<5> are driven directly by the gyroscope, and the frame B<7> carrying the planet wheels B<8> by the pendulum. The pointer D<2> is then driven from the wheel D through a reversing gear. In a further modification an epicyclic differential gear is used. In a further modification, Fig. 14, the pointer D<2> is pivoted on the pointer E at a point d displaced from the pivot e of the pointer E, which is driven directly by the gyroscope. The pendulum C pivoted at C<2> carries a pin d<2> which engages a slot d<1> in the pointer D<2> and normally coincides with the pivot e but displaces the pointer D<2> relatively to the pointer E when the pendulum moves relatively to the outer casing.
Patent GB-1416308-A (GB)
Title: Cable trunking
IPC: H02G3/04
Filed: 1972-01-13
Abstract: 1416308 Releasable fastenings SALAMANDRE METAL WORKS Ltd 2 March 1973 [13 Jan 1972] 1761/72 Heading E2A [Also in Division H2] The cover 10 of cable trunking is secured to the trunking I by securing devices each comprising a body having a shoulder which seats against the cover, the rest of the body passing through a hole 17 in the cover and having a collar 32 thereabout and a resilient metal blade 33 fitting in a groove 34 in which it is secured by a screw 35; alternatively the sides of groove 34 are bent over to secure blade 33. The ends of the blade 33 have cam portions 37 to engage behind flanges 6, 7 formed internally of the trunking. The head of the body portion has a slot or flats whereby it may be turned for securing.
Patent GB-609830-A (GB)
Title: Apparatus for switching ultra high frequency energy
IPC: H01P1/12
Filed: 1946-01-18
Abstract: 609,830. Electric resonators. PHILCO RADIO & TELEVISION CORPORATION. Jan. 18, 1946, No. 1767. Convention date, Aug. 3, 1944. [Class 40 (viii)] [Also in Group XL (c)] Apparatus for switching an ultra-highfrequency source in succession to a plurality of loads, comprises a primary cylindrical resonator 14 energized from the source and communicating with a ring of cylindrical ,resonators 21 by a series of apertures 43. A metal disk 51 rotating on an axis 55 moves over and closes all but one of the apertures 43, the remaining aperture being left open by the gap 52 in the rim of the disk, thus establishing coupling between the resonator 14 and one of the resonators 21. Energy is fed in or out of the resonators by loops terminating coaxial lines 15, 41. The resonators 21 are tuned by screw plugs 31 to different frequencies, which may be fed in turn to an aerial connected to the line 15. Alternatively, the resonators 21 may be tuned to the same frequency, but each connected by a line 41 to a different antenna array, whilst each is coupled in turn to a receiver circuit connected to the line 15.
Patent GB-554845-A (GB)
Title: Improvements in or relating to ironing machines for laundries
IPC: D06F65/06
Filed: 1942-02-11
Abstract: 554,845. Ironing machines. WATSON LAIDLAW & CO., Ltd., LAMONT, R. W., and BROWN. M. B. Feb. 11, 1942, No. 1800. [Class 1,38 (ii)] In an ironing machine of the type which goods are passed between a padded . roller and a heated concave bed, pressure with a lateral component is applied to the bed to five a greater pressure at one side of the bed than at the other. The bed 3 is supported on vertical hydraulic ramp 4 having inclined thrust plates 5, the planes of which are parallel to the axes of the padded roller 2, bearing on inclined plates 6 on the beds, ball bearings 7 being interposed between the inclined thrust plates. A reduced diameter prolongation 8 of the ram passes through clearance holes in the thrust plates and is guided in a boss 9 on the machine frame. To allow each thrust plate to seat itself properly the bottom face may be convex.
Patent GB-742365-A (GB)
Title: Improvements in or relating to process for segregation of c dienes
IPC: C07C7/04
Filed: 1953-01-21
Abstract: C5 diolefines are separated from a cracked petroleum distillate fraction containing appreciable amounts of isoprene together with piperylene and cyclodiolefines including cyclopentadiene, by heating said fraction in the liquid phase in a first thermal soaking zone, under such conditions of temperature and pressure and for such a time that at least half but not all of the cyclopentadiene is dimerized without substantially polymerizing or copolymerizing the isoprene and piperylene, distilling an isoprene-rich distillate from the heat-soaked fraction, heating the bottoms product in the liquid phase in a second thermal soaking zone under more severe conditions and for such a time that the dimerization of the cyclopentadiene is substantially completed, and distilling the piperylene from the cyclopentadiene dimer.  The bottoms product from the isoprene distillation may be blended with a C5-C7 hydrocarbon stream, obtained from severely cracked petroleum oils and containing methylcyclopentadiene, before passing to the second thermal soaking zone.  Preferably the initial cracked petroleum fraction is kept in the first thermal soaking zone for 4 to 12 hours at a temperature of 180 DEG  to 220 DEG  F. and a pressure of 50-120 p.s.i.g., whereby 80 to 90 per cent of the cyclopentadiene is dimerized.  The isoprene may be distilled from the heat soaked fraction at a bottoms temperature between 230-270 DEG  F., an overhead temperature of 130 DEG  to 150 DEG  F. and a pressure of 15-30 p.s.i.g. in a tower containing 30 to 50 plates.  The bottoms product is preferably maintained at 200 DEG to 260 DEG  F. for 6 to 20 hrs. in the second thermal soaking zone, the pressure being sufficient to maintain liquid phase.  The piperylene may be distilled off at a bottoms temperature of 270 DEG to 310 DEG  F., an overhead temperature of 160-210 DEG  F. and a pressure of 5 to 20 p.s.i.g. in a tower containing 20 to 30 plates. The piperylene-rich stream may be subjected to thermal dimerization at 250 DEG  to 400 DEG  F. for 6 to 24 hours, or polymerized, e.g. with aluminium chloride catalyst, whereafter benzene may be separated. Alternatively piperylene monomer may be obtained by further fractionation and extractive distillation with aqueous acetone, furfural or dimethyl sulpholone.  Data is given illustrating the improvement in isoprene recovery over a process without partial dimerization of cyclopentadiene.
Patent GB-726432-A (GB)
Title: Improvements in or relating to dry rectifier arrangements
IPC: H01L25/03
Filed: 1953-01-22
Abstract: 726,432. Meter rectifiers. SIEMENSSCHUCKERTWERKE AKT.-GES. Jan. 22, 1953 [Jan. 22, 1952], No. 1894/53. Class 37. A metal container housing an arrangement of metal rectifiers insulated from the case by heatconducting layers has a side or sides with a large surface area in relation to the superficial area of the case, which side is in good heatconducting contact over its whole area either directly or through a heat-conducting interlayer with a chassis or a carrier plate mounted thereon to dissipate heat rapidly thereto. The side in contact with the carrier is polished and of good heat conductivity, while the other surfaces are blackened to improve radiation. In one arrangement a single layer of cells connected in series by contact strips is held firmly in contact with one face by a spring bearing on the opposite wall while in another embodiment the container has more than one layer of cells with intermediate conducting walls 13, Fig. 5. The container may carry tabs through which it is bolted or riveted to the chassis or it may be directly bolted or riveted thereto or through an intermediate layer which may have greater area than the housing face and may be bent up to form radiating surfaces. The container may also be mounted on a cut-out portion of the chassis bent up to provide an air channel past the surface or may be mounted in an upright position with one or both faces in contact with L-shaped members secured to the chassis through their lower arms. It may also be directly clamped to the chassis by means of broad clips 57 cut to provide lugs 61 for engaging holes in the chassis and a large resilient area to bear against the chassis on either side, Fig. 20, 21. When the housing is substantially square in section it may be mounted, with its diagonal vertical, between a recessed part of the chassis and a bracket fixed to the chassis, Figs. 15, 16 (not shown). When it is cylindrical it may be mounted between a semi-cylindrical recess in the chassis and a semicylindrical member having flat extensions fixed to the chassis, Fig. 19 (not shown). On the other hand it may be mounted, Fig. 19, on a semi-cylindrical part of a metal bridge 54 with a U-shaped member 56 fitted over it and fixed to the bridge.
Patent GB-431154-A (GB)
Title: Improvements in connection with shop fronts
IPC: E06B1/38
Filed: 1934-01-19
Abstract: 431,154. Signs. DAVIS, A. F. C., 18, Horn Lane, Acton, London. Jan. 19, 1934, No. 1925. [Class 3 (ii)] [See also Groups X and XI] The front of a recess beneath a shop front D may comprise a transparent or translucent panel d<1> with a sign or advertisement thereon, illuminated by a lamp B.
Patent GB-1026801-A (GB)
Title: Improvements in or relating to electrical timing apparatus
Inventor: BARNETT ARTHUR ALEC CECIL
IPC: G04F13/00
Filed: 1962-01-18
Abstract: <PICT:1026801/C6-C7/1> An electrolytic cell has one wall which can be moved under pressure of gas generated in the cell e.g. a diaphragm or piston. The cell contains an electrolyte and an anode which is coated with a metal which when D.C. is applied dissolves in the electrolyte without generation of gas, thus, giving a delay period before gas is generated by decomposition of the electrolyte after the coating is dissolved, and the piston moves outwards.  The anode 15 is preferably platinum coated with copper and the electrolyte copper fluoborate dissolved in fluoboric acid solution or zinc, silver, or nickel and an acid solution of a salt of the metal. The anode is mounted in a tube 11 provided at the remote end with a piston 13 preferably made of plastic.  The piston may operate a switch or a train of gears. After use a screw stopper 18 is removed and the piston pushed in to remove gas, and screw stopper returned when the bore 17 is again full of electrolyte. In a modification the piston is replaced by a flexible diaphragm, which when the centre is deflected by gas moves a sliding member outwards. By varying the thickness of the copper coating a delay period of 10 to 10,000 hours is available and adjustment can also be made by introducing a resistor in the D.C. power input.