baber/WOPTO huggingface dataset:
Patent GB-540408-A (GB)
Title: Improvements relating to the catalytic cracking of hydrocarbon oil
IPC: C10G11/18
Filed: 1940-01-31
Abstract: 540,408. Cracking oils. STANDARD OIL DEVELOPMENT CO. Jan. 31, 1940, No. 1908. Convention date, March 11, 1939. [Class 32] In cracking oils in presence of solid catalysts mixed, preferably in the form of an oil slurry, with the oil and passed with it through the cracking zone, the catalyst comprises at least 20-50 per cent. by weight of the mixture and the cracked products are fractionated to separate besides gasoline and higher boiling fractions, a light gaseous fraction consisting principally of hydrogen, methane and ethane and a heavier gaseous fraction consisting of hydrocarbons having 3-4 C. atoms, and the light or the heavier fraction is re-cycled to the cracking zone. The crude is fed through pre-heating and reaction coils 17, 18 to a separator 23, the catalyst. comprising acid treated or synthetic gels. pasted with oil recovered in the reaction, being fed from a tank 12 to mix with the feed in line 19 before or after it enters the coils 17. 18. Products are separated into vapours passed to fractionator 25 and a liquid residue containing catalyst which is passed through a rotary filter to separate oil and is then re-generated by purging and heating in chambers 76, 77, 78 or alternatively by treatment with solvent oil in chambers 82, 84. Gasoline fractions are recovered overhead through cooler 31 to separator 32 from which gases are removed and separated into light and heavy fractions by absorption in kerosene &c. in tower 44 the rich gases being distilled off in tower 51 and re-cycled through line 54 and heater 56 to the coil 17, while the light gases are re-cycled through lines 46. 48, 38. Specification 488,651, and U.S.A. Specification 1,860,199 are referred to. The Specification as open to inspection under Sect. 91 states that the total gas fraction was re-cycled. This subject-matter does not appear in the Specification as accepted.
Patent GB-839915-A (GB)
Title: Labyrinth seals
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F01D11/12
Filed: 1958-01-20
Abstract: 839,915. Stuffing-box substitutes. ROLLSROYCE Ltd. Jan. 20, 1959 [Jan. 20, 1958], No. 1937/58. Class 122 (5). Also in Group XXII] A labyrinth seal comprises a sealing member 11 formed by a number of metal strip annuli 19, adjacent annuli being axially spaced apart at their peripheral sealing edges 19b, and cooperating with at least one rib 10b which cuts its own path in the annuli if rubbing therebetween occurs. The annuli may be either initially separate and mounted as a stack or in the form of a continuous helix. The invention is shown in Fig. 1 applied to sealing gas turbine blades 10, ribs 10b on the blade shrouds 10a co-operating with spaced sealing members 11 in a ring 12 secured to the turbine stator 14 and cooled by cooling air circulated through a chamber 16. Preferably the metal of the annuli 19 is softer or has a lower melting point than that of the projections 10b. In the embodiment shown in Fig. 2 each annulus has an outer enlarged V-section portion 19a received in the corresponding portion of the adjacent annulus and a thin sealing portion 19b of, for example <6>/1000 inch thickness. The annuli are clamped between a shoulder 12c on the ring 12 and a ring 13. In a modification, the annuli are of constant thickness metal and have circumferential corrugations at their outer peripheries engaging corresponding corrugations on adjacent annuli. In another modification, Fig. 5, the annuli are spaced by dimples 23, 24 formed on alternate annuli and spot-welded at their troughs to adjacent non-dimpled annuli. In a further modification, Fig. 6, each annulus is formed with dimples 25, the dimples on alternate annuli being circumferentially staggered with respect to those on adjacent annuli. The portions of flanges 26 in the region of the dimples are bent radially outwards to form tangs 27 protruding through slots 28 in a ring 29, the tangs 27, the flanges 26 and also end plates 30, 31 being welded to the ring 29. In yet another modification, the annuli are spaced by dimples formed on one side only of each annulus. The annuli may be made by forming a continuous strip of the metal to the desired cross-section by drawing, rolling or extruding and then winding the formed strip around a mandrel to provide a helically coiled strip from which separate annuli may be cut.
Patent GB-266304-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C15/00
Filed: 1927-01-22
Abstract: 266,304. Soc. Technique d'Etudes et d'Entreprises pour l'Industrie, and Huguenin, A. Feb. 19, 1926, [Convention date]. Pumping - machines. -The invention relates to means for circulating gases at high pressures such as in the catalytic treatment of gases and consists in the provision as the circulating pump of a gear wheel pump driven by a variable speed squirrel cage induction motor, the whole being enclosed in a fluid-tight casing l adapted to withstand the high pressure. The motor is immersed in oil or glycerine which acts as insulating, lubricating, and packing medium and which is fed through a bore o in the motor shaft c by a screw p in an enlargement of the bore o to the pump intake whence it lubricates the pump gears and after separation in the pump delivery chamber passes by a duct s to the bearings of the shaft and returns through ducts in the stator to the bottom of the casing. The motor has windings for four different speeds.
Patent GB-832250-A (GB)
Title: Improvements in and relating to diquaternary compounds
Inventor: CALDWELL ALBERT GORDON
IPC: C07D295/13
Filed: 1957-01-18
Abstract: The invention comprises compounds of the general formula <FORM:0832250/IV (b)/1> where X is a phenyl group carrying one or more substituents which are C1-C5 alkyl groups, chlorine or bromine atoms, phenyl groups or benzyl groups, or X is a naphthyl group which may carry one or more substituents which are C1-C5 alkyl groups or chlorine or bromine, at least one of the substituents on X occupying an ortho position with respect to the linkage X-O: m is 2-6, n is 2 or 3, N+1 is a quaternary nitrogen atom carrying two C1 or C2 alkyl groups N+2 is also a quaternary nitrogen atom carrying at least one methyl or ethyl group, and either two further such groups, or groups which form part of a pyrrolidino, piperidino, or morpholino ring, and A is an anion of an inorganic or organic acid, e.g. halide or alkyl sulphate.  The compounds of the invention may be prepared by quaternizing a suitable diamine of general formula (II) with a methylating or ethylating agent.  <FORM:0832250/IV (b)/2> where N3 is a secondary or tertiary nitrogen atom, and N4 a primary, secondary, tertiary or quaternary nitrogen atom.  Compound II may be prepared by the following method <FORM:0832250/IV (b)/3> <FORM:0832250/IV (b)/4> where Y and Z are suitable halogen atoms, N5 is a primary or secondary nitrogen atom, and N4 is a tertiary nitrogen atom. Amongst examples given are those for the preparation of 1 : 3 - dimethyl - 2 - [2 - (b  - piperidinoethylmethylamino) ethoxy] benzene dimethiodide, 2 - [6 - (b  - diethylaminoethylmethylamino) hexyloxy] diphenyl, and 1-[4-(b -morpholinoethylmethylamino)-butyloxy] naphthalene.
Patent GB-549139-A (GB)
Title: Catalytic isomerization
Filed: 1941-02-14
Abstract: 549,139. Hydrocarbon oils. STANDARD OIL DEVELOPMENT CO. Feb. 14, 1941, No. 2011. Convention date, Jan. 16, 1940. Drawings to Specification. [Class 2 (iii)] Hydrocarbon oils rich in olefines are isomerised to increase their octane number by passing them together with hydrogen at a temperature between 700 and 900‹F., at a pressure of 50- 400 lbs. per square inch and a space velocity between 0.5 and 4 volumes of oil per volume of catalyst per hour over bauxite, attapulgus clay, natural or activated clay of the bentonitic or montmorillonitic type, silica gel, silicaalumina gels, heat resistant alumina halides, bauxite or clay which has been treated with hydrofluoric or fluosilicic acid or the substance known under the Registered Trade Mark "Super Filtrol." The reaction is continued until hydrogen begins to be consumed. The olefinic oils may be obtained from the products of distillation, destructive distillation, cracking and hydrogenation of coals, tars, mineral oils, shales, peats, lignites, brown coal and bitumens. The process, including regeneration of the spent catalyst is described with reference to a diagrammatic drawing, and in an example the properties of the product obtained using a debutanized cracked distillate from a gas oil as starting material are stated. Antiknock and blending agents and gum and oxidation inhibitors may be added to the product. Specification 542,925 is referred to.
Patent GB-1009731-A (GB)
Title: Thermostatically responsive electric control device for electric ovens
IPC: H01H37/00
Filed: 1963-01-16
Abstract: 1,009,731. Thermal switches; cam-operated switches; control systems for heating resistors- ROBERTSHAW CONTROLS CO. Jan. 16, 1963 [Jan. 23, 1962], No. 2042/63. Headings H2B and H2H. A control device for an electric oven having a " bake " heating element and a " broil " heating element comprises a control dial on a dial shaft 54 for adjusting the setting of a temperature responsive element 30 which has a stationary base part 40 and a movable stem 38 operating contacts 124, 126, in the " broil " circuit in advance of contacts 138, 140, in the " bake circuit. A cam 70 on shaft 54 engages a cam follower 82, Fig. 6, on an L- shaped member 94, 96, pivotally supported in a tapered slot 98 of cover 24 of the switch assembly such that the movement of cam 70 as shaft 54 rotates is transmitted through portion 96 and a push-rod 102 to a resilient contact-carrying arm 108 of a further pair of contacts 110, 112, in the " bake " circuit. Continued movement of rod 102 first opens contacts 110, 112 and then further contacts 109, 111, in the " broil " circuit at the " off " position of the control dial, in which position the element 30 has been set by shaft 54 such that stem 38 has opened both contact pairs 124, 126 and 138, 140, Fig. 7. In one " on " position of cam 70 contacts 109, 111 and 110, 112 are biased closed and " broil " contacts 124, 126 held open so that the " bake " element only is energized, the " bake " contacts 138, 140 cycle on and off under control of temperature responsive element 30 when the pre-set " bake " heat is attained. In a second " on " position of cam 70, contacts 109, 111 and 110, 112 are biased closed and both heating elements are energized until stem 38 opens " broil " contacts 124, 126 with increase of temperature and causes " bake " contacts 138, 140 to cycle on and off at a pre-set higher temperature. In a third " on " portion of cam 70, the " bake " contacts 110, 112 are kept open and the "broil" element only is energized, the " broil " contacts 124, 126 undergoing thermostatically controlled cycling when the pre-set " broil " " temperature is attained. An adjustable abutment screw 146 carried by the arm 122 carrying contact 138 determines the point at which contacts 138, 140 open after the arm 120 carrying contact 124 is moved by stem 38 to open contacts 124, 126, in response to movement of thermally responsive element 30, which is of the tube-and-capsule type construction.
Patent GB-1106851-A (GB)
Title: A dental blower having an arrangement for controlling hot and cold air supply
Inventor: PAJER MIROSLAV
IPC: A61C17/022
Filed: 1966-01-17
Abstract: 1,106,851. Dental air blowing apparatus. CHIRANA, ZAVODY ZDRAVOTNICKE TECHNIKY, OBQROVY PODNIK. 17 Jan., 1966. No. 2042/66. Heading A5R. A dental device able to provide hot air for drying a tooth cavity is controlled by two levers 2, 3 actuating a valve 4 in the air supply and a switch 5 to the heating element respectively, the levers being linked so that displacement of the lever 3 also causes the displacement of the lever 2. As shown, the levers are biased by a spring 10. and a plate 11, secured to the lever 2 and projecting under the lever 3, provides the link between the levers. In an alternative arrangement, Figure 2 (not shown), the levers are pivoted about a common axis and the link between the levers is provided by a pin (12) on the lever 2 engaging the lever 3.
Patent GB-1463782-A (GB)
Title: Production of fibrils
IPC: D21H13/10
Filed: 1975-01-17
Abstract: 1463782 Flash-spinning fibres SOLVAY & CIE 17 Jan 1975 [18 Jan 1974 12 July 1974 18 Oct 1974] 2105/75 Heading B5B In a process in which a two-phase liquid comprising molten polymer and solvent under pressure is converted into fibrils by a sudden reduction in pressure as it passes through an orifice, the flow-path of the material is disturbed at the moment at which it enters the orifice. This is preferably achieved by passing the mixture through a "perturbation chamber" 5 as illustrated in Fig. 1, wherein the mixture entering through supply orifice 7 spreads out as shown and re-converges at the extrusion orifice 2. This spreading process may be assisted by a gauze as shown in Fig. 9 (not shown), or by use of two divergent orifices 7 aiming the mixture at opposite sides of the chamber (Fig. 10-12, not shown). Different configurations of orifice are illustrated in Figs. 2-8 (not shown). By means of the apparatus shown in Fig. 12 a lubricant fluid may be introduced to the orifice via entrance 16 and annular exit 17. This assists in the elimination of pellets from the product. In Examples polyethylene and polypropylene fibres are produced.
Patent GB-856872-A (GB)
Title: Improvements in or relating to drive mechanisms
IPC: F01L23/00
Filed: 1956-01-23
Abstract: 856,872. Liquid-pressure engines. STANHAY (ASHFORD) Ltd., and CRUTTENDEN, V. Jan. 2, 1957 [Jan. 23, 1956], No. 2207/56. Class 69 (2). Premature actuation of the spool of a distributing valve, which is actuated by a piston of a liquidpressure engine at each end of its stroke, is prevented by the application thereto of liquid pressure derived from the exhaust side of the piston. The liquid-pressure engine comprises a double-acting piston 6 reciprocated by liquid supplied from an inlet 1 under the control of a valve spool 18. At each end of the stroke the valve spool is actuated by means of members 16 carried by the piston-rod acting through springs 15 on abutments 17 on the spool. Movement of the valve spool, e.g. to the left, causes liquid exhausting from the motor through a passage 8 to be drawn through a restricted passage 13 into an end chamber 11, 12, and this liquid is subsequently prevented from escaping from the end chamber by the liquid exhausting from the motor through passage 8. When the piston slows down at the end of its stroke, liquid can escape from the end chamber and the compressed spring 15 is able to shift the spool to its other end position. An identical arrangement is provided at the other end of the valve to prevent premature actuation in the reverse direction.
Patent GB-590636-A (GB)
Title: Means for automatically co-ordinating the movements of separate electrically actuated mechanisms
IPC: H02P5/485
Filed: 1941-02-18
Abstract: 590,636. Automatic control systems for two D.C. motors. GIBSON, H. C., LUCAS, Ltd., J., und WATSON, E. A. Feb. 18, 1941, No. 2213. [Class 38 (iv)] [Also in Group XXXVII] Speed control; varying E.M.F.; reversing.- Two electrically-actuated mechanisms each comprising a dynamo driving a motor and an automatic generator field regulator controlling the motor speed, are so co-ordinated that the motors rotate at the same speeds. Differential mechanism connecting the motors adjusts the regulators on a departure from equality in speed. Vibratory regulators each comprise normally closed contacts shunting a resistance in the field circuit of one of the generators, and an electromagnet actuating a spring-mounted armature which carries one of the contacts. Each of the electromagnets is connected across the armature of the motor it controls. The differential mechanism may actuate simultaneously potentiometers or resistances in the circuit of the regulator electromagnets or may actuate, the tail of a T-shaped lever, the head of which interconnects the free ends of springs carrying the regulator armatures. Manual adjustment of the speed of both motors may be obtained by simultaneous adjustment of resistances in series with the regulator magnets, by turning: a pinion engaging a rack or racks coupled to the potentiometer contacts or by adjusting a cam engaging the head of the T-shaped lever. Fig. 5 shows means for controlling two motors c adapted for reversal. A cam 6 actuated by a knob 7 selectively opens one of two switches 8, whereby electromagnets 4, 9 are controlled to determine respectively which of two rods v actuated by the differential mechanism n shall control the T-shaped lever y and which of two switches 10 shall be closed to select one of two exciters m for exciting the fields b of the generators a in a suitable direction. The rotation of the cam also actuates contacts 16 on potentiometers in series with the regulator magnets h to determine the speeds of the motors and may adjust the head of the lever y against a spring 14 to change the tension in the regulator springs j to a like extent or to vary the position of the armatures i in relation to their magnets.
Patent GB-339534-A (GB)
Title: An improved process of and apparatus for varnishing wire
IPC: C23D5/00
Filed: 1930-01-22
Abstract: 339,534. Internatioaal General Electric Co., Inc., (Assignees of Allgemeine, Elektricitõts-Ges.). Jan. 25, 1929, [Convention date]. Enamelling - ovens. - In an apparatus for varnishing iron in which the wire is led in several windings through a heating casing or stove 1, charging is facilitated by mounting the upper rollers 2 so that they can be let down close to the lower rollers. In this position the wire is easily wound round both rollers,-after which the upper rolleris restored to its normal position. To facilitate lowering, the upper roller is connected to a weight 5.
Patent GB-737492-A (GB)
Title: Improvements in or relating to non-slipping devices for horseshoes
IPC: A01L7/04
Filed: 1953-01-27
Abstract: 737,492. Calks. EISNER, P. J. S. Jan. 27, 1954 [Jan. 27, 1953], No. 2339/53. Class 62. [Also in Group XXII] A calk for horseshoes comprises a tapered or screwthreaded steel body 1 to which is applied by welding a roughened and domed tread surface consisting of a composite deposit 4 of hard metal carbide particles such as tungsten carbide embedded in steel, the welding process involving the use of a welding rod comprising a steel tube containing fused metal carbide particles of various sizes and a flux. In one arrangement, Fig. 2, the steel body has an enlarged head 3 having a central depression 6 for receiving the carbide layer 4. Alternatively the layer may be built up around a pin 7, Fig. 4, formed of the same hard material and fixed centrally in the body. Slots or apertures may be provided in the body to allow a proportion of the molten steel in which the particles of carbide are suspended to disperse during the welding process.
Patent GB-899453-A (GB)
Title: Extrusion process and apparatus therefor
Inventor: SAUVE CHARLES PIERRE GEORGES
IPC: B21C23/32
Filed: 1960-01-22
Abstract: 899,453. Extruding; working at specified temperatures. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan. 22, 1960 [Jan. 27, 1959], No. 2385/60. Class 83 (4). In the extrusion of a billet 5 from a container 1 through a die 3 using a lubricant 4, a frangible closure member 2 is placed in or adjacent the die orifice to cause distribution of the lubricant throughout the space 10 between the billet and container upon initial application of pressure, the closure member being subsequently broken by the extrusion pressure. The closure member 2 may be of soft steel, nickel-chrome steel, bronze, brass, copper, aluminium bronze, gun-metal, rolled zinc, lead, tin, polyamide, phenol formaldehyde, polyvinyl chloride, polyolefine, cellulose or cellulose ester or polyester; it may be of cup shape placed between the die 3 and the end of the container 1. A further closure member 7 may be placed between dummy blocks 6, 8 or between a dummy block and the billet. The latter may have a conical leading end to enter the conical orifice of the die 3. In another embodiment, Fig. 3, the closure comprises a conical slug 13 placed in the die orifice. A separate sealing collar 14 of alloy steel is provided; a hemisphericalshaped closure may be used with certain dies. In a further embodiment, Fig. 4 (not shown), the die has a conical aperture and a conical outer surface fitting into a conical end of the container. The closure consists of a flat disc fitting between the outer surface of the die and a support plate therefor; a separate cylindrical liner is used as a packing. The lubricant used depends upon the temperature of extrusion and may be oils, greases, metallic soaps such as stearates of aluminium, zinc or magnesium which may be mixed with grease or fatty substances with graphite or molybdenum disulphide or a mixture of colloidal graphite with paraffin or with an organic resin. Specific examples are given for the extrusion of copper at 800- 900 C., brass at 700 C., phosphor-bronze or silicon-bronze or lead bronze at 800-900 C., magnesium or magnesium alloy at 300-500 C. and zinc or zinc alloy at 250-300 C.
Patent GB-907614-A (GB)
Title: Improvements in and relating to coat stands, display stands and the like
Inventor: GOULDING ERNEST HENRY
IPC: A47F5/04
Filed: 1958-01-24
Abstract: 907,614. Coat &c. stands. HALL & GOULDING Ltd. Jan. 26, 1959 [Jan. 24, 1958], No. 2449/58. Classes 52 (3) and 52 (5). [Also in Group XXV] A head for a coat &c. stand comprises plates 1, 2 secured in face-toface relation at the top of a pedestal 13 to engage lugs projecting from hook elements 3. Radial grooves 6 in one or both plates receive the parts 11 of the lugs and recesses 7 receive the parts 12 to prevent rotation and removal of the hooks. The plates have a locating pipe 15 and corresponding recess and central bores 5 having enlarged ends 5a to form seatings 8 for the head of a fixing screw 14 and the top of the pedestal. In modifications, the lugs are provided with flats to prevent rotation and are thickened rearwardly to prevent removal. The pedestal is preferably made in detachable sections screwed end-to-end, an umbrella-ring being supported on spokes radiating from a bush clamped between the sections and a removable drip tray being provided.
Patent GB-1059441-A (GB)
Title: Improvements in machine milking installations
Inventor: PARRY JOHN GERALD
IPC: F16L27/107
Filed: 1963-01-21
Abstract: 1,059,441. Pipe couplings. ALFA LAVAL CO. Ltd. Jan. 21, 1964 [Jan. 21. 1963]. No. 2492/63. Heading F2G. A milking machine installation having a milk pump and a pipe-line for delivering milk under pressure includes a connection between adjacent pipe ends which connection comprises a tubular sleeve 11 of elastomeric material for reception of the pipe ends and a pair of collars 12 having internal threads which bite into the sleeve and clamp the latter into sealing engagement with the pipe ends.