baber/WOPTO huggingface dataset:
Patent GB-798019-A (GB)
Title: Integrated process for manufacture of gasoline and lubricating oils
Inventor: READ CHESTER LOUIS
IPC: C10G21/00
Filed: 1957-02-01
Abstract: In a process for producing gasoline and lubricating oils from crude oil, the crude oil is distilled to separate a distillate, boiling between 500 DEG  and 1200 DEG  F., and a bottoms fraction; the distillate subjected to catalytic cracking, the cracked products are fractionated to separate a fraction boiling between 700 DEG  and 1100 DEG  F. which is of relatively low aromatic content, and this fraction is submitted to solvent extraction, e.g. with phenol, to remove the aromatic constituents whereby a product is obtained which may be worked up to produce a lubricating oil.  Due to the low aromatic content of the feed to the extraction unit, only a relatively small volume of solvent has to be used.  A higher boiling aromatic-rich fraction, separated from <PICT:0798019/III/1> the cracked products, is used as a wash material in conjunction with the propane-de-asphalting of the bottoms fraction from the initial distillation, for it enables a de-asphalted oil of very low metallic-ash content to be obtained.  Crude oil is fed through line 11 into still 10 from which a fraction boiling in the range of 500-1200 DEG  F. is taken off through line 14, and cat. cracked in unit 15.  The cracked products are fractionated in fractionator 17; and naphtha is withdrawn through line 19, while heating oil is withdrawn through line 20.  A fraction having a boilingrange of about 600-900 DEG  F. is taken off through line 21 and is mixed with the bottoms which leave fractionator 17 through line 22.  The mixture is fractionated in fractionator 24, from which all material boiling below 650-700 DEG  F. is taken overhead.  A low aromatic fraction boiling between about 700 DEG  and about 1100 DEG  F. is taken off through line 26; part of this fraction is recycled through line 27 to the cracking unit 15, but the major portion of the fraction is treated in tower 30 with phenol, which is introduced through line 31 and extracts the aromatic constituents from the fraction.  The raffinate phase from tower 30 is removed via line 40, and the phenol is recovered therefrom.  The dephenolized raffinite is then subjected to dewaxing and decolorizing to produce a finished lubricating oil. After the phenol has been separated from the aromatic extract, withdrawn from tower 30 through line 32, the extract is combined with the aromatic bottoms from fractionator 24; and the mixture is fed through line 34 into unit 33, where the crude residuum from still 10 is de-asphalted with liquid propane.  The addition of the aromatic oil effects a precipitation from the residuum of salts of iron, nickel and vanadium in unit 33.  The deasphalted oil is taken off through line 37, and propane is recovered therefrom. All or a portion of the non-metallic, de-asphalted oil may be used as a feedstock for the manufacture of a lubricating oil, or it may be passed to cracking unit 15.  Other solvents which may be used in tower 30, in place of phenol, are furfural, nitrobenzene and liquid sulphur dioxide.
Patent GB-104723-A (GB)
Title: Improvements in or relating to Mechanism for the Operation and Control of Variable Speed Gears.
IPC: F16H61/02
Filed: 1916-03-13
Abstract: 104,723. Napier & Son, D., and Rowledge, A. J. March 13, 1916. Systems for controlling travel for a fixed distance or number of revolutions.-Relates to electric control systems for operating the mechanical clutches and brakes used in epicyclic variable-speed gearing, particularly of the type described in Specifications 16,595/15 and 16,596/15, [both in Class 80 (ii), Gearing, Variablespeed &c.]. Gear for operating two clutches and three brakes, as described in the latter Specification, is described. Clutch and brake-operating-cams H, H<1>, H<2> are secured on a shaft G driven directly or through gearing by a motor L. The shaft G may be rotated clockwise from the neutral position shown, in a series of steps to adjust the cams for forward speeds, and in the opposite direction for reverse. The cams are so formed as to be locked in their set positions, and also as to bring all the clutches, etc., to neutral or disengaging positions if the cams are advanced half the normal speedchanging distance. Secured to the shaft G are a pair of conducting segments Q, Q<1> separated by gaps or insulations R, R'. A ring S carries a series of brushes Tx, Tr .. T', Ty, of which the brushes Tx, Ty, are connected to the reversing-coils X, Y of a reversing switch N, and the brushes Tr .. T<4> are connected to push button or lever switches &c. Or .. O<4> in the circuit of a battery M. The push-buttons may be so connected that contact is not broken until a new button is pressed. The ring S is connected by a link S' to a pedal and may be rotated clockwise through a distance equal to half that between two brushes Tn, T<1> &c. Assuming the gear to be in neutral position with the parts as shown, if the switch O<1> is closed current passes through the coil Y and moves the reversing-switch over to connect the contacts N<1>, V<3> with the contacts Y', Y<2> respectively. This sends a current through the armature L', and field L<2> of the motor L und also through a coil L<3> which disengages a brake normally engaging the armature of the motor. The shaft G and segments Q, Q<1>, are thereby rotated until the gap R reaches the brush T<1>, whereupon the motor stops and the brake is applied, the first speed being thus engaged Further rotation is produced by closing the switches O<2>, O<3>, O<4>, or backward rotation by closing the switch Or or any switch for a reduction of speed, whereupon the coil X is excited and moves the reversing-switch to connect the contacts X<1>, X<2> with the central contacts. If, while the switch is still closed, the ring S is rotated a half-step by the pedal, the segments Q, Q<1> follow for a half-step and the cams H, H<1>, H<2> disengage the clutches and brakes. When the pedal is released the ring S returns and the segments follow. If the current fails, the armature brake may be disengaged by hand and the shaft G may be rotated by a crank handle, or by rack and pinion gearing which is normally kept out of mesh.
Patent GB-539199-A (GB)
Title: Improvements in or relating to skiving or like machines
IPC: A43D8/34
Filed: 1940-02-29
Abstract: 539,199. Skiving-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., POTTER, S. W., and PERKINS, J. H. Feb. 29, 1940, No. 3760. [Class 31 (i)] Relates to machines of the kind described in Specifications 278,769 and 318,290, [both in Class 31 (i)], and consists in detail improvements. Part of the machine carrying the knife and feed roll is pivoted to part of the machine carrying the driving shaft, so that the first part may be released and swung upwardly for inspection. The feed roll is carried by a cover movable to expose the knife, and this cover and a cover over the driving belt for the feed roll are locked when the machine is in operation. The feed roll is yieldingly mounted to tilt lengthwise and also bodily away from the knife, both movements against successively a weak and a strong spring. The part of the machine carrying the driving shaft 31 is secured to the bench. A frame 1 is pivoted to this at 35, which frame may be released and raised to expose the knife 3. The machine is stopped and started by a handle 83 actuating a belt shifter 89 connected by a lever 95 and link 99 with a safety lever 103. A hinged cover 79 supporting the feed roll has a lug 111 co-operating with an arc-shaped portion 109 of the lever. Also, a lug 113 carried by a cover 75 for the belt and two speed pulleys co-operates with an arm 101 of the lever. The arrangement is that when the driving belt is on the fast pulley the covers are locked against opening, and when either cover is open the belt shifter is locked against movement to start the machine. As described in Specification 278,769, the feed roll 59 can 'swing about a pivot 119, and also about a bearing at the end of the pivot, the first movement'being resisted by a pair of spring plungers respectively provided with weak and strong springs and coming into action successively against an arm 125 secured to the bearing of the pivot. The second movement is resisted by a weak spring 149 and also by a strong string 169 threaded over a tube sliding on a rod 157 pivoted to an arm on the bearing. Adjustment of a head 165 provides variable play before the stronger spring comes into action. A stop 183 limits the yield due to the stronger spring. The feed roll has a spring finger in its end groove to lift the thin edge of a skived work-piece when a second cut is being made.
Patent GB-1424775-A (GB)
Title: Control device for coin-operated gaming devices
IPC: G07F5/22
Filed: 1973-01-25
Abstract: 1424775 Gaming machine control system NSM-APPARATEBAU GmbH KG 25 Jan 1973 [25 Jan 1972] 3766/73 Heading G4V  A control system for a coin-operated gaming device comprises a unit 1 for receiving simultaneously coins of different values a coding unit 2 for applying pulses to a counter 3 according to the values of the coins inserted and a pay-out unit 20 which controls the pay out of wins from coin tubes 10, 11, 12 each holding coins of different values. The contents of the counter 3 are indicated by a unit 8 and stored in a unit 7 which prevents loss of information on power supply disconnection. The contents of coin tubes 10, 11, 12 are analysed to determine whether predetermined minimum levels exist and the sequence of coins used in paying out is adjusted accordingly.
Patent GB-1043858-A (GB)
Title: Streptonigrin derivatives and preparation thereof
Inventor: RAO KOPPAKA VISVESWARA
IPC: A61K31/47
Filed: 1965-01-28
Abstract: The invention relates to (a) streptonigrin monoxime, its mono-alkyl and trimethyl ester and the dimethylsulphate quaternary salt of the trimethyl ester, (b) isopropylidene azastreptonigrin, its mono-alkyl and trimethyl ester and the dimethylsulphate quaternary salt of the trimethylester, (c) dihydroazastreptonigrin, (d) azastreptonigrin and complexes of (a), (b), (c) and (d) with polyvalent metal ions, e.g. Ca, Cd, Ce, Cr, Cu, Fe, Ni and Zn.  Streptonigrin monoxime is obtained by reacting streptonigrin with hydroxylamine in a solvent such as pyridine.  Monoalkyl esters are produced by reacting the oxime with an alcohol and an acid catalyst especially a Lewis acid. The trimethyl ester is produced by reaction with diazomethane. The dimethylsulphate quaternary ammonium salt of the trimethyl ester is produced by treating the oxime with dimethylsulphate and K2CO3 in acetone solution.  Isopropylidene azastreptonigrin is prepared by treating dihydroazastreptonigrin with acetone in the presence of air oxidation.  Catalyctic or chemical reduction of the monoxime produces the unstable dihydroazastreptonigrin which oxidizes in air or oxygen to azastreptonigrin.  Streptonigrin has the formula <FORM:1043858/C2/1> Streptonigrin monoxime has the formula <FORM:1043858/C2/2> wherein X is the C and D rings above.ALSO:A pharmaceutical composition for the treatment of tumours in man and animals comprises streptonigrin monoxime or isopropylindene azastreptonigrin (antibiotics) and a carrier for oral or parenteral use.  Optional ingredients are other antibiotics, hypnotics, analgesics, local anaesthetics and carcinostatic agents e.g. nitrogen mustard type 6-mercaptopurine, 8-azaguanine, urethane, 6-diazo-5-oxo-1-norleucine, azaserine, triethylenemelamine mitomycin C, triethylenephosphoramide, 1, 4-dimethyl-sulphonyloxybutane and carcinostatic folic acid analogues.
Patent GB-490219-A (GB)
Title: A device for catching fat from frying pans or other like utensils
IPC: A47J43/28
Filed: 1937-02-10
Abstract: 490,219. Frying &c. pans; brackets. BLACKBURN, J., and ASPIN, J. Feb. 10, 1937, No. 3932. [Class 66] [Also in Group XIV] A device for collecting fat draining from a frying-pan &c. comprises a receptacle D or L adapted to span the part of the pan opposite to the handle and having means such as a pair of hooks B, Fig. 3, for attaching it to the uppermost or handle side of the suspended pan, or means, such as arms K, Fig. 7, projecting from a bracket J adapted to be attached to a wall &c. for engaging and supporting the handle. The construction shown in Fig. 3 comprises in addition to the fat receptacle D a shield E which is slidable on the arms of the wire frame A. In a modification of this construction the receptacle and the attachment means are combined with the lid of the pan.
Patent GB-1470091-A (GB)
Title: Calibration source for gamma camera or scanner
IPC: G21G4/04
Filed: 1974-01-28
Abstract: 1470091 Radioactive sources RADIOCHEMICAL CENTRE Ltd 21 Jan 1975 [28 Jan 1974] 03951/74 Heading G6R A gamma-ray emitting source for use in calibration of a gamma camera comprises tellurium-123m uniformly distributed in a plastics sheet of uniform thickness. The source may be prepared by dissolving Te-123m (made by neutron irradiation of enriched Te-122) in caustic soda solution, mixing the solution with a water-soluble polyester resin, adding a hardener, and pouring the emulsion into a mould. The sheet formed contains the Te- 123m in solution distributed in the pores of the plastics material. The sheet may be encased in aluminium.
Patent GB-1248798-A (GB)
Title: Control of a process variable by means of a computer and a controller which replaces the computer
Inventor: SPAARGAREN KLAAS
IPC: G05B9/03
Filed: 1969-01-23
Abstract: 1,248,798. Automatic control systems. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N. V. Jan. 23, 1969 [Jan. 25, 1968], No.3954/69. Heading G3R. An unspecified process variable A is controlled either intermittently by a "computer" 8 via a "memory amplifier" comprising an operational amplifier 4 with capacitor feedback 12 (switches 5, 6, 7 in position P) or by a controller 17 which uses the same operational amplifier 4, with feedback by an impedance 16 and having input signals representing actual and desired values B, F of the variable A applied over at least one further impedance 14, 15 (switches in position Q). The output of the amplifier is a signal D which adjusts the setting C of an unspecified correcting unit 3 for the process 1. Details of the computer are not disclosed but as shown it calculates from the actual value B and a desired value a correcting signal E, which charges a capacitor 11, this charge being intermittently transferred by a switch 10 to the input of amplifier 4. The amplifier capacitor 12 maintains this value while 11 is disconnected. In an alternative embodiment Fig. 2 (not shown) the computer calculates the necessary value of D instead of the correction to it; the capacitor 11 is not provided and the amplifier has additional feedback through a resistor (23) so that the arrangement functions as a delayed phase inverter amplifier while the computer is connected to it. The impedances 14, 15, 16 may be resistors or capacitors, or series or parallel combinations thereof to provide proportional or porportional plus integral control. The change over from computer to controller control may be effected automatically by a circuit (not disclosed) which periodically tests the functioning of the computer. In such cases the desired value F may be the last, or a recent actual value B, stored in a second memory circuit Figs. 5, 6 (not shown).
Patent GB-734956-A (GB)
Title: Improvements in or relating to electric incandescent filament lamps
IPC: H01K1/20
Filed: 1953-02-12
Abstract: 734,956. Electric incandescent lamps. GENERAL ELECTRIC CO., Ltd., BOWTELL, J. N., JENKINS, H. G., and MOORE, J. A. Feb. 9, 1954 [Feb. 12, 1953], No. 4013/53. Class 39 (2). In order to modify the colour of the light emitted by an electric incandescent lamp the interior of the envelope is provided with a quantity of a substance which, in normal operation of the lamp, will give rise to the presence of iodine in the vapour state, and all the metal parts within the envelope, including the filament, filament supports, and leading-in wires are such that they are substantially non- reactive with the iodine vapour. The substance employed may consist entirely of iodine, or a substance such as phosphorus tri-iodide, from which iodine vapour will be liberated, may be employed. A tungsten filament, which is resistant to attack by iodine vapour, may be employed preferably with other metal parts, such as supporting wires, of molybdenum, which is also resistant to iodine vapour. Alternatively the said metal parts may consist of platinum, or of nickel with a protective coating of rhodium or chromium. In one method of introducing iodine into a 100 watt lamp bulb of about 70 millimetres diameter, the filling tube through which an argon/nitrogen mixture is introduced is provided with a side stem containing 5 milligrams of crystals of iodine and, during the introduction of the argon/nitrogen mixture containing from 5-15 per cent of nitrogen at a pressure of about 700 mm. of mercury, the side-stem is heated to vaporize the iodine, which passes into the envelope and sublimes. The lamp is next sealed and capped. Alternatively the gas filling may be completed and the crystals of iodine then shaken into the lamp bulb which is afterwards sealed. In addition to modifying the colour of the light emitted, the presence of iodine vapour within a gas-filled lamp reduces the possibility of flashing and also enables the quantity of nitrogen in an otherwise normal gas filling to be reduced.
Patent GB-285036-A (GB)
Title: Process for taking composite photographic or kinematographic pictures
IPC: G03B15/12
Filed: 1928-02-08
Abstract: 285,036. Continental & Overseas Trust, Ltd. Feb. 9, 1927, [Convention date]. Grant of Patent opposed. Composite photographs. - In making still or kinema pictures, the scenery is represented in its entirety by a miniature model, photograph, drawing, &c., the several parts of which, together with parts of real scenery in which actors &c. appear, are reflected simultaneously into the camera objective by a number of mirrors forming a mosaic, in combination with a compound prism whose function is to obliterate, in the composite picture, the zones of separation between the various mirrors forming the mosaic. Fig. 3 shows in plan an arrangement for taking views of a house shown in Fig. 2, wherein actors are to appear at the door 10 and upper window 11. Mirrors 13, 14, 15 are erected to reflect respectively the left side, the right side, and the two windows immediately above the door in the complete model placed at 17. Mirrors 12 and 16 are erected to reflect respectively the real door erected at 10 and the real upper window 11, Fig. 2, erected at 11, Fig. 3. The mirrors are of different widths, but are so arranged or inclined as to subtend the same angle at the camera 4. In front of the camera objective is placed the prism 9 for obliterating the zones of separation of the several mirrors. The action of the prism is shown in Fig. 4 for a system of two mirrors 5, 6 only. The prism has a plane surface 18 facing the objective 4, and inclined surfaces 19, 20 intersecting in a line a, b, which is parallel to the adjoining edges xy and rz of the mirrors. The prism deflects the rays from the two mirrors so that, in the camera, the images reflected bv the two mirrors have no discernible zone of separation.
Patent GB-562932-A (GB)
Title: Improved nut and screwed spindle gearing for lathes and like machines
IPC: F16B37/08
Filed: 1943-03-12
Abstract: 562,932. Screw - and - nut gearing. BAILLIE, A. A. March 12, 1943, No. 4039. [Class 80 (iii)] Nuts made in halves for the purpose of engaging and being disengaged from a screwed spindle as in lathes &c., are formed, as to each half as a number of separate tracks in which balls circulate. The tracks C in the face of each half B have a section, transverse to the direction of travel of the balls, slightly more than a half-circle so that lips are formed which prevent the balls from falling out. At the back of each half, the tracks are of a depth slightly in excess of the diameter of the balls. The halves are inserted into halfcasings F and retained therein by plates G secured by studs G'. A felt or like washer is retained at each end of the nut to wipe the screw.
Patent GB-115809-A (GB)
Title: An Improved Sparking Plug.
Inventor: TASSIGNY CAMILLE ROCHET DE
IPC: H01T13/46
Filed: 1918-03-08
Abstract: 115,809. Tassigny, C. R. de, and Puerto J. March 17, 1917, [Convention date]. Sparking-plugs.-The central electrode is formed with a gap, the spark passing between the points F being visible by means of an aperture in the insulation. The earthed electrode is an annulus I of triangular or similar crosssection.
Patent GB-1120531-A (GB)
Title: Mine face conveyors
Inventor: LESTER THOMAS
IPC: E21F13/06
Filed: 1965-01-29
Abstract: 1,120,531. Mine conveyers. COAL INDUSTRY (PATENTS) Ltd. 21 Jan., 1966 [29 Jan., 1965], No. 4102/65. Heading B8A. An armoured flexible scraper chain conveyer 1 is provided with a ramp plate 4 which is attached by spring steel strips 3 to the conveyer. The resilience of the strips allows the leading edge of the plate to remain in contact with the floor when the conveyer is advanced and fallen material is lifted on to the conveyer. In a modification (Fig. 2, not shown), cam-plates (7) accept the thrust applied to the ramp plate and transmit it to the conveyer.
Patent GB-547574-A (GB)
Title: Improvements in or relating to sound rerecording systems
IPC: H03G7/00
Filed: 1941-03-27
Abstract: 547,574. Re-recording circuits. ELECTRICAL RESEARCH PRODUCTS, Inc. March 27, 1941, No. 4140. Convention date, April 5, 1940. [Class 40 (iv)] In re-recording from a volume-compressed sound record bearing an auxiliary record of the degree of compression, the auxiliary record is modified as desired by the use of a variable attenuator 8, and as a guide for the operator, the output from the sound record is reproduced in a loudspeaker 12 by way of an expander 10 which is controlled by the modified output from the auxiliary record. An adjustable network may be associated with the amplifier 3 to modify the frequency pattern of the re-recorded sound. The compression may be applied only to the higher levels of volume, and the arrangement is equally applicable to the re-recording of volume-compressed stereophonic records.
Patent GB-231631-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/38
Filed: 1924-02-18
Abstract: 231,631. Wade, H., (Mercury Mills, Ltd.). Feb. 18, 1924. Circular machines.-A knit. ting-machine having a series of short-latched needles which are always in operation to form and to cast stitches is provided with a second series of long-latched needles interposed in the first series. To form openwork designs such as clocks the long-latched needles are selected part to form and to cast stitches in the ordinary way and part to collect and to cast-off together a number of loops to form tuck stitches. As the needle cylinder 3 rotates a stationary cam member 5<e> acts on the butts on both the short-latched needles 4 and the long-latched needles 6. When an adjustable cam member 31 is raised by either of the cams 15, 17 it acts on the butts of the long-latched needles so as to cause these needles to free the loops from their latches and to allow them to be cast. The longlatched needles may also be raised for the same purpose by jacks 7 with butts of various lengths to enable them to be selected and operated by a cam 20. This cam is pressed against the action of a spring, into the paths of the desired jackbutts by a stepped selecting-cam 29 acting through levers and links. Reference has been directed by the Comptroller to Specifications 184,031 and 203,115.