baber/WOPTO huggingface dataset:
Patent GB-744966-A (GB)
Title: Process for separating piperylene and isoprene concentrates
IPC: C07C7/00
Filed: 1953-12-02
Abstract: <PICT:0744966/IV(a)/1> Isoprene and piperylene concentrates are separated from a first naphtha fraction containing a high proportion of C4 to C12 alkenes and dienes by dimerizing cyclic diene components to dimers in said fraction by heat soaking, transferring to a first distillation zone and distilling isoprene together with components having up to 5 carbon atoms per molecule as a second fraction from the first fraction, passing the second fraction to a second distillation zone, and distilling as a third fraction, isoprene together with components having a lower boiling point than isoprene and subsequently separating and collecting isoprene from the third fraction.  In a preferred embodiment, a high temperature cracked naphtha fraction boiling at 30-420 DEG  F. is held at a temperature of 180-260 DEG  F. for about 8-12 hours and then fractionated in column 5, bottoms of C6+ components being withdrawn by line 6 and distilled C5 and lighter components being passed through line 8.  The higher boiling fraction is again fractionated in a superfractionator 13.  The isoprene and lighter components are withdrawn by line 16 to column 21 the bottoms temperature of which is maintained at 170-210 DEG  F. and the overhead vapour temperature at 130-160 DEG  F. Isoprene is removed from the bottom of the column and C4 and light C5 components from the top.ALSO:<PICT:0744966/III/1> Isoprene and piperylene concentrates are separated from a first naphtha fraction containing a high proportion of C4 to C12 alkenes and dienes by dimerising cyclic diene components to dimers in said fraction by heat soaking, transferring to a first distillation zone and distilling isoprene together with components having up to 5 carbon atoms per molecule as a second fraction from the first fraction, passing the second fraction to a second distillation zone, and distilling as a third fraction, isoprene together with components having a lower boiling point than isoprene and subsequently separating and collecting isoprene from the third fraction.  In a preferred embodiment, a high temperature cracked naphtha fraction boiling at 30-420 DEG F. is held at a temperature of 180-260 DEG F. for about 8-12 hours and then fractionated in column 5, bottom of C6 components being withdrawn by line 6 and distilled C5 and lighter components being passed through line 8.  The higher boiling fraction is again fractionated in a superfractionator 13.  The isoprene and lighter components are withdrawn by line 16 to column 21 the bottoms temperature of which is maintained at 170-210 DEG F. and the overhead vapour temperature at 130-160 DEG F.  Isoprene is removed from the bottom of the column and C4 and light C5 components from the top.
Patent GB-437070-A (GB)
Title: Gas-fired furnaces
IPC: F23D99/00
Filed: 1934-11-22
Abstract: 437,070. Metal - heating furnaces. PLAYER, E., c/o Sterling Metals, Ltd., Northey Road, Foleshill, and HIND, W., 218, Broad Lane, both in Coventry. Nov. 22, 1934, No. 33595. [Classes 51 (i) and 51 (ii)] Combustion products, returning to furnaces.- In a gas-fired furnace, more particularly adapted for the heat treatment of metals, having a recirculatory system for the products of combustion, fresh gases are induced into the system from a combustion chamber which is traversed by a conduit conveying the recirculated gases. As shown, the waste gases are withdrawn by a fan 27 through the flue 22, and are returned through the pipe 28, which passes through the combustion chamber 29 for the supply of fresh gases. The pipe 28 terminates in a nozzle 28<a> fitted into a T-piece 32, the limb 33 of which is open to the combustion chamber. The gases enter the heating chamber 12 through side ports 21, and are withdrawn through ports 19 in line along the middle of the floor. Air may be introduced into the recirculating system through the valve controlled duct 23, and a controlled vent to atmosphere is provided in the heating chamber. The supply of gas to the burner 34 may be thermostatically controlled.
Patent GB-1399840-A (GB)
Title: Non-refillable fitments for bottles
IPC: B65D41/34
Filed: 1971-07-16
Abstract: 1399840 Non-refillable bottle fitments; gravity valve BETTS & CO Ltd 16 Oct 1972 [16 July 1971] 33613/71 Headings B8D and B8T A non-refillable bottle fitment comprises a two-part plastics housing 15 and 16, a one-way gravity-operated valve 17 resting on a valve seat 24 when the bottle is upright to prevent illicit refilling, and a hollow boss 28, which limits movement of the valve away from the seat when the bottle is tilted and which is carried by a plurality of resilient spirally-arranged struts 29 extending from the bore of the upper housing part whereby the boss may be depressed inwardly to hold the valve against its seat on application of a screw-threaded closure cap 30 to the fitment. As shown, the fitment and an edge flange 32 of the cap are secured to the bottle by a crimped or spun metal band 33. The cap has a thinned section 31 which fractures when the cap is unscrewed. The boss slidably engages an upstanding peg 22 of the lower housing part, along which the valve slides. The peg is joined by radial spokes 21 to a surrounding annulus 18  of the lower housing part to define arcuate pouring and air inlet openings 25. In a simplified embodiment, Figs. 1 and 2 (not shown), the valve 6 has a stem 7, which engages in the hollow boss.
Patent GB-1158626-A (GB)
Title: Improvements relating to Prefabricated Shed Construction
Inventor: SAUNDERS NATHANIEL SOLOMON
IPC: E04B1/343
Filed: 1966-07-27
Abstract: 1,158,626. Sheds. N. S. SAUNDERS. 27 July, 1966, No. 33698/66. Heading E1A. In a shed made up from prefabricated wall and roof panels having framing members such as 13, Fig. 5, wall panels are interconnected by brackets such as 11, 14 and bolts 17 whilst the roof panels 22, 35, Fig. 3, are positioned thereon by brackets 23 and clamped by members 27, 28.
Patent GB-190478-A (GB)
IPC: B44F9/02
Filed: 1922-12-11
Abstract: 190,478. Holz-und Tarsowerke Ges. Dec. 19, 1921, [Convention date]. Transferring designs; transfers.-A method of printing wood, in imitation of more valuable woods or of inLaid work, by means of transfers. consists in first slightly roughening the surface of the wood and then transferring the design directly thereto by heat and pressure. The wood is roughened preferably by applying thereto a solution of one part of shellac in ten parts of spirit, the spirit acting to raise the fibres of the wood and the shellac retaining them in this condition until they are again pressed flat during the transferring operation. If parts of the picture correspond in colour to that of the wood, those parts of the picture may be printed with translucent colour, ort, in preparing the printing plates, sueh as autotypes, for printing the transfers, those parts of the plate corresponding to the tones of the original design which are similar to the colour of the wood to be printed may be removed, in the usual way, by nitric acid and gum arabic. Trans. fer sheets which are to be printed with the design lithographically are preferablv coated with varnish before being printed so as to prevent the usual gum or dextrin coating of the paper from adhering to the lithographic stone. The transference of the design to the wood is effected by a press having the heated upper press plate a provided with a curved spring metal plate d, the opposite sides of which are slidable on bolts b so that the pressure is gradually applied from the centre of the transfer to the edges thereby smoothing out the paper and preventing the formation of blisters and creases. A blanket is preferably interposed between the press plate and the transfer to equalize the pressure over its surface.
Patent GB-340693-A (GB)
Title: Improvements in or relating to telephone circuits
IPC: H04M1/58
Filed: 1929-11-06
Abstract: 340,693. Substation circuits. KAHL, A. R. and COVENTRY AUTOMATIC TELEPHONES, Ltd., of General Electric Co., Stoke, Coventry. Nov. 6, 1929, No. 33770. [Class 40 (iv).] In anti-side-tone substation circuits, the receiver R and a third winding C of the induction coil are connected in series across a resistance X, the arrangement being such that during transmission the potential drop across the resistance opposes the voltage induced in the winding C to prevent response of the receiver whilst during reception the potential drop in X assists the induced voltage in C to produce an augmented effect in the receiver. Figs. 3, 6 show respectively circuit arrangements for a centralbattery automatic-exchange substation and a localbattery operator's cir - cuit. Other circuit arrangements are shown for (1) a manualexchange s u b - station, (2) an automaticexchange s u b - station desk set with a fourwire connection between the standard transmitter - receiver - dial unit and the induction coil, resistance X, condenser and bell, and (3) a further automatic set employing a standard unit consisting of bell, condenser and two-winding induction coil connected by a three-wire connection to a modified unit comprising the transmitter, receiver, dial, resistance X, and an additional three-winding induction coil.
Patent GB-363084-A (GB)
Title: Improvements in or relating to thermionic tubes
IPC: H01J19/42
Filed: 1930-11-10
Abstract: 363,084. Thermionic valves. ARCTURUS RADIO TUBE CO., 720, Freling- huysen Avenue, Newark, New Jersey, U.S.A. -(Assignees of Feindel, A. ; 33, Shepard Avenue, Newark, New Jersey, U.S.A.) Nov. 10, 1930, No. 33820. Convention date, Dec. 2, 1929. [Class 39 (i).] In a thermionic valve having an anode 14, Fig. 1, arranged within a pair of screen grids 13, 15 which are located radially beyond the control grid 16, means are provided for bracing the screen grids at their upper ends independently of contact with the anode, and insulating means are provided for bracing the upper end of the anode from one of the screen grids. As shown in Fig. 1, the screen grids are spaced by an annular disc 23. A mica or quartz disc 51 fits snugly within the screen 13 and has holes to receive anode supports 20 which may subsequently be bent over. In a modification, the anode is provided with fingers 54, Fig. 3, which fit in notches in the disc and are subsequently bent over to secure the disc upon the anode edge, In a further modification, the anode supports 20, Fig. 4, are provided with insulating tubes 56 which bear against the annular disc 23 and secure the insulating disc 51 to the anode.
Patent GB-777450-A (GB)
Title: Improvements in or relating to the drying of the paper web in paper making machines
IPC: D21F5/02
Filed: 1953-12-04
Abstract: 777,450. Drying sections of paper-making machines. CARRIER-ROSS ENGINEERING CO., Ltd., and SANDO, R. G. Nov. 29, 1954 [Dec. 4, 1953], No. 33846/53. Class 96. Hot air from headers 10 &c. along each side of a drying section of a paper-making machine flows down pipes 12, through nozzles 7, 7a and across the surfaces of the moving paper web 19 as it travels over the drying cylinders 1, 4, the nozzles 7 for the upper bank of cylinders 1 being supplied from the header 10 at one side of the machine and the nozzles 7a for the lower bank from that at the other side.
Patent GB-393640-A (GB)
Title: Improvements in and relating to tubular boxes and cartons, pails and similar tubularcontainers
IPC: B65D3/06
Filed: 1931-12-07
Abstract: 393,640. Boxes, cartons, pails, and similar tubular containers. GIBSON PATENT CONTAINERS, Ltd., 350, George Street, Sydney, Australia. Dec. 7, 1931, No. 33942. Convention date, Dec. 6, 1930. [Classes 18 and 66.] A box, carton, pail, or similar container comprises a tubular body, one end portion of which is capable of being flared outwardly and has a part or parts to project inwardly from the outer end of said portion, and a base having a side wall which converges upwardly to engage the outwardly flared end of the body portion to hold the base and body in assembled relation. The body is made by folding a blank 20, Figs. 1 and 7, to form a tube 120 and securing the overlapping edges with rivets 125. The blank is slit at its lower end to form a plurality of fingers 123 with ends 23. The fingers are scored along lines 21, 22. The bottom structure may be moulded to the form shown in Fig. 10 or may be formed from a paper or cloth wrapper 29 on which is placed a paper, celluloid or glass disc 30 and a collar formed by folding the blank 25, Fig. 2, to form a ring. The wrapper 29, Fig. 8, is folded over the upwardly converging side wall 26 of the member 25 and is tucked in to overlap the finger members 27 thereon. It may be fastened by adhesive. The second disc 30 is then forced into position over the end 126 of the wrapper 29 and the fingers 27 of the member 25. The body member is then placed in position and the fingers 123 are flared outwardly and the ends 23 of the fingers secured by forcing a third disc 32 into the bottom structure. The collar 25 may be of metal and the wrapper 29 and disc 30 may be omitted. In some cases the middle disc 31 may be omitted. In a modification the body blank is shaped so that when folded it produces a conical container, and sheet-metal pieces are secured to the body to receive a bail handle. The Specification as open to inspection under Sect. 91 comprises also drawings showing a tubular container of polygonal cross section formed by folding a blank 210, Fig. 15 (Cancelled), to form a tube, securing the overlapping edges of the blank by wire staples 222 and attaching a bottom member comprising a downwardly flanged disc 216 also with wire staples 225. The top of the blank is bent over to form a flange 214 round the neck of the container. This subject-matter does not appear in the Specification as accepted.
Patent GB-801773-A (GB)
Title: Improvements in and relating to oxygen breathing systems
Inventor: GLOVER DENYS THOMAS
IPC: A61M16/00
Filed: 1955-11-28
Abstract: 801,773. Respiratory appliances. NORMALAIR, Ltd. Nov. 23, 1956 [Nov. 28, 1955; Dec. 8, 1955], Nos. 34003/55 and 35281/55. Class 81 (2). [Also in Group XL (b)] A device for indicating faults in a respiratory apparatus comprises means for driving an electrical impulse at each inhalation and time delay means which actuates an alarm if the interval between pulses exceeds a predetermined limit. In one form, contacts 1, 2 are closed in response to a flow of gas at each inhalation, by known means, and current from a source across 3, 3<SP>1</SP> energizes a slugged relay 4. This opens contacts 5, 6, but the delay allows a short impulse to energize a solenoid 7, which attracts its armature 8. This has a delayed return and, under normal conditions, a subsequent pulse is received before it is fully retracted. However, if an interruption occurs, the armature 8 is able to return sufficiently to close contacts 9, 10 and operate an alarm. These conditions would arise from failure or slowing of the patient's respiration or from leaks or faults in the apparatus since these would cause either continued opening or closing of the contacts 1, 2 and no impulses would then be passed to solenoid 7. In a modification (see Fig. 2, not shown), each impulse energizes a " clockwork mechanism which actuates the alarm if it is not reset before it has completely run down.
Patent GB-1237783-A (GB)
Title: Joining of bars by cast metal, and means for doing same
Inventor: GELFAND LEONARD
IPC: B22D19/04
Filed: 1968-07-17
Abstract: 1,237,783. Casting composite joints. ERICO PRODUCTS Inc. 17 July, 1968 [24 July, 1967], No. 34025/68. Heading B3F. Metal melted in a graphite crucible 30 passes into a recess 44 in a graphite pouring block 31, thence to an exit portion of a passage 45 which portion has within it a refractory (ceramic) sleeve 46 and from this the metal passes into a steel sleeve 3 which will be secured, by the metal solidifying, around the adjacent ends of two concrete-reinforcing rods 1, 2 to be joined. The exit portion of the block may be at a side surface. A Cu or Al tube 47 lines both the sleeve 46 and an inlet 5 into the sleeve 3. The crucible 30 and the block 31 may each comprise clamped halves and the ceramic sleeve 46 may also comprise separable halves, so as to be reusable instead of being knocked off with the sprue after casting. A starting powder 35 is ignited in the crucible 30 to melt an alloy powder 34 so that it burns through a steel closure disc 33 and flows through the block 31 into the sleeve 3 melting the metal liner 47 on the way. The ends of the bars 1, 2 are supported by a clamp 18-20 and the sleeve 3 is located by end fittings 6, 7, each comprising halves 8, 9 secured by a stud and nut 10 and including asbestos packing 17. In a modified arrangement for joining two vertical rods, a pouring block (63) with an inclined passage (71) is clamped to the side of the sleeve (50) and supported from a sleeve-supporting clamp (57).
Patent GB-1065634-A (GB)
Title: Improvements in or relating to clips
Inventor: GOWARD STANLEY HAROLD
IPC: F16L33/025
Filed: 1964-08-20
Abstract: 1,065,634. Band clips. BTR INDUSTRIES Ltd. July 9, 1965 [Aug. 20, 1964], No. 34071/ 64. Heading E2B. A clip for embracing a body comprises a band I having a fold 2 providing two upstanding arms lying outwardly of the band and a cross-piece of general concave shape in the direction towards the inner aspect of the band, running between the two arms, such that when the fold is nipped to contract the band the fold forms two upstanding ears able to be folded to lie substantially flat against the outer surface of the band, the band having a split, and the end portions 3, 4 of the band facing the split being formed so that they can be held together by means of a clasp. As shown the end portions 3, 4 form shallow channels of which the webs 5, 6 are brought together after placing the clip round a body, and in use the end portions 3, 4 interengage with channel section portions of a clasp which has an apertured top wall 7, side walls 8, 9 and flanges 10, 11 defining a slot 12. In the embodiment shown the aperture in the wall 7 is dimensioned to receive the webs 5, 6 so that the slot 12 lies crosswise of the band, but in a second embodiment the slot 12 lies circumferentially of the band. The band may have more than one fold 2.
Patent GB-282669-A (GB)
Title: Improvements in or relating to the quick release of electric switches
IPC: H01H71/26
Filed: 1927-12-16
Abstract: 282,669. Siemens Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Dec. 24, 1926, [Convention date]. Automatic circuit-breakers.- Relates to means for effecting the quick release of switches wherein, for example, a constantly excited voltage coil attracts an armature to keep the switch closed and the cause effecting the release, for example excess current, energizes a coil tending to demagnetize the voltage coil. Acording to the invention, the circuit of the voltage coil is provided with means for counteracting the current change therein consequent on magnetic reaction with the release coil. In Fig. 2, the voltage coil n normally attracts the armature a to hold the switch on, and the overload coil h acts to release the switch by demagnetizing the coil n and releasing the armature. On an increase of current in the coil h, however, an induced current is set up in the coil n so that demagnetizing is delayed by an amount of time depending on the time-constant of the circuit of the coil n. To counteract this, the excess current is arranged to remove a shortcircuit from a series resistance r, thereby reducing the time-constant and also the current in and, therefore, the field due to, the circuit. In another form (Fig. 3, not shown) a series inductance is switched in by excess current so as to oppose a current rise in the coil n. The value of this inductance, which has a partly closed iron core, is equal to or greater than that of the coil n, and the inductance is normally worked well below saturation. Fig. 4 shows an arrangement for completely compensating the interaction between the coils h, n, a second core exactly similar to the first being provided with a series coil h<1> and a shunt coil n<1> which is in opposition to the coil n.
Patent GB-486885-A (GB)
Title: Improvements in or relating to jet tube relays
IPC: F15C3/10
Filed: 1936-12-11
Abstract: 486,885. Fluid - pressure relays. ASKANIA WERKE AKT. - GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU. Dec. 11, 1936, No. 34125. Convention date, Dec. 11, 1935. [Class 135] In order to increase the efficiency and reduce the power required to supply the fluid pressure to a jet tube relay in which the jet tube moves relatively to one or more receiving apertures, the cross-sectional area of the outlet 2 of the jet tube is made less than that of the receiving aperture 3 or of each of such apertures where more than one are provided. The aperture 3, Fig. 1, is about twice the area of the jet tube 2. Pressure medium near the jet is sucked in as shown bv the arrows when the resistance in the conduit 4 is small, but when this resistance increases the jet spreads and maintains pressure over the whole of the aperture. According to the Specification as open to inspection under Sect. 91, the relay may be used to control physical conditions. Fig. 1 (Cancelled) shows a jet tube 10 carried by a bracket 11 mounted in trunnions 12. The outlet of the jet tube is surrounded by an oil catcher 18. Graphs show that the volumetric efficiency, i.e. the proportion of fluid received in the apertures 15, and the pressure regain or the ratio of the pressures in the receiving and delivery conduits are a maximum when the ratio of the diameters of these conduits is 0À8. This subject-matter does not appear in the Specification as accepted.
Patent GB-470391-A (GB)
Title: Improvements in or relating to adhesive tapes and sheets
IPC: C09J7/28
Filed: 1935-12-10
Abstract: A priming coat for a metal foil to which an adhesive is to be applied comprises 120 parts by weight of resinous pitch, 126 parts of zinc oxide, 230 parts of reclaimed rubber, and 50 parts of balata.  A modified composition comprises 25 per cent of resinous pitch, 25 per cent of zinc oxide, and 50 per cent of reclaimed rubber.  A further modification comprises 20 per cent of rosin, 30 per cent of Cumar resin, and 50 per cent of reclaimed rubber.  The compositions are applied mixed with toluene as solvent.  The rubber in the compositions may in some cases be replaced by balata.