baber/WOPTO huggingface dataset:
Patent GB-593527-A (GB)
Title: Production of aviation gasoline
IPC: C10L1/06
Filed: 1945-05-31
Abstract: Leaded aviation gasoline improved with regard to its lead susceptibility is produced by separating from a 100 per cent. catalytically cracked gasoline the fraction boiling up to 220 DEG F., hydrogenating the separated fraction, and blending the hydrogenated fraction with the remainder of the original gasoline, lead tetraethyl being added.  The hydrogenation may be catalytically carried out at 500-600 DEG F. in the presence of tungsten sulphide supported on an acid-treated bentonitic clay as catalyst.  4 c.c. of lead tetraethyl may be added to each gallon of the blend.  A small proportion of an aromatic amine, such as toluidine, xylidene &c. may also be incorporated in the gasoline.ALSO:The proportion of unsaturated hydrocarbons in a mixture of saturated and unsaturated hydrocarbons such as a 100 per cent catalytically cracked aviation gasoline is reduced by separating the fraction boiling up to 220 DEG  F., hydrogenating this fraction in order to convert the olefines present into saturated hydrocarbons, and blending the hydrogenated fraction with the remainder of the original gasoline.  The hydrogenation may be carried out catalytically at 500-600 DEG  F. in the presence of tungsten sulphide supported on acid-treated bentonitic clay as catalyst.
Patent GB-1034714-A (GB)
Title: Improvements in or relating to magnetic tape feeding devices
Inventor: CHOLET JACQUES
IPC: G11B15/61
Filed: 1963-04-05
Abstract: 1,034,714. Automatic speed control systems. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. April 5, 1963 [April 6, 1962], July 18, 1962. No. 13744/63. Heading G3R. A device for high-speed feed of a magnetic tape driven by means of two driving rollers rotated by a common motor the speed of which is controlled by a constant frequency oscillator, is characterized in that a loop formed in the tape between the two driving rollers is applied on a convex cylindrical surface, the tape being frictionally driven at one of the loop extremities by a thrust roller associated with a variable speed electric motor and at its other extremity braked by another thrust roller associated with an adjustable brake. In Fig. 1 the driving sprockets 2 and 3 for the tape 1 are driven by a motor 4 at a constant speed determined by the frequency of a reference oscillator 6. Between the sprockets the tape forms a loop which is applied to a drum 9 by a roller 10 connected to a brake 12 and by a roller 11 driven by a motor 13. The actual speed of the tape is measured by a photo-electric device 17 sensing the sprocket holes in the tape, or by an auxiliary magnetic track provided with timing pulses, and the frequency of the pulses detected is compared in unit 18 with the frequency of oscillator 6 to give an error signal which controls the speed of motor 13 or the braking effect of brake 12.
Patent GB-1108434-A (GB)
Title: Hydraulic axial piston type pumps and motors
Inventor: LEE DENIS ERNEST
IPC: F01B3/00
Filed: 1964-04-03
Abstract: 1,108,434. Reciprocating pumps and motors. JOSEPH LUCAS (INDUSTRIES) Ltd. May 10, 1965 [April 3, 1964], No.13804/64. Heading F1A. The valve plate 19 of an axial piston pump or motor has arcuate ports 20a with which the cylinder ports 16 communicate during rotation of the block 11. The arcuate ports 20a connect to recesses 23 on the opposite side of the plate 19 through arcuate ports 20b and the recesses house sealing means comprising a metal ring 24 and on "O" ring 25 which is under compression. The pressure of liquid in the cylinders 13 acts on the shoulders 26 in recesses 23 and the shoulders 17 in the cylinders to provide a resultant force tending to urge the block 11 against a shoulder 27 on the shaft 12. The shaft is thereby forced against a thrust bearing 28. The area of contact between the faces of the block 11 and valve plate 19 is substantially larger than the area of the recesses 23 such that the pressures applied thereto would tend to separate the contacting faces but for the force exerted by the sealing means 24, 25. At a predetermined pressure the force exerted by the sealing means is overcome and the contacting faces tend to separate and allow the escape of liquid.
Patent GB-272475-A (GB)
Title: Improvement in manufacture of viscose
IPC: D01F2/08
Filed: 1927-05-23
Abstract: 272,475. Du Pont Rayon Co., Inc., (Assignees of Blanc¾, G. W., and Henningson, C.). June 12, 1926, [Convention date]. Drawings to Specification. Cellulose xanthates; alkali cellulose. - The sheets of wood pulp used as the starting material for the manufacture of viscose are so arranged or formed that the mercerizing lye has, from the first, free access to all parts of the sheets. Free access of the lye permits of the re-use of the waste lye from a previous steeping operation, even though such lye contains a high percentage of hemi-celluloses, while avoiding the formation of gelatinized areas on the sheets. The ripening of the viscose is accelerated by the presence of hemi-celluloses derived from the lye used in the mercerizing operation, and the effect of these may be supplemented by hemi-celluloses added directly to the viscose. In order that the lye may have free access to the sheets of wood pulp, these may be corrugated, the corrugations running preferably in a diagonal or horizontal direction, or they may be provided with a series of raised projections or perforations; only alternate sheets need be of these special constructions. A less advantageous method is to immerse the sheets separately in the lye. The Specification as open to inspection under Sect. 91 (3) (a) refers to the addition of hemicelluloses to any viscose for the purpose of accelerating the ripening process. This subject-matter does not appear in the Specification as accepted.
Patent GB-899903-A (GB)
Title: Improvements in or relating to furniture
Inventor: MASCAGNI UMBERTO
IPC: F16B12/48
Filed: 1961-04-17
Abstract: 899,903. Furniture joints. BARTRADE Ltd. April 17, 1961, No. 13824/61. Class 52(2) A leg 5 or similar component for use in the construction of furniture, has a tubular insert 6 which is threaded internally to provide one part of a screw fixing, the insert being held rigid in the leg by a pin 9 engaging transverse apertures 10 in the insert 6 and the leg 5 and the thread in the insert being formed by an internally threaded nut 8 retained within the insert 6.
Patent GB-805272-A (GB)
Title: Improved methods of duplicating and means therefor
IPC: B41L11/00
Filed: 1956-05-04
Abstract: 805,272. Carbon paper coating compositions. RITZERFELD, W., and RITZERFELD, G. May 4, 1956, No. 13830/56. Class 146(3) [Also in Group XVI] A coating for a transfer sheet to be used in a spirit duplicating process for transfer of alkali to a master sheet contacted with a copy sheet moistened with a diazo compound and a coupling agent which produces a dye in the presence of alkali consists of a layer of fat, wax, &c., e.g. a polygylcol wax or a mixture of carnauba wax, stearin, wool fat, petroleum jelly and castor oil in which an alkaline substance, e.g. soda, tertiary potassium phosphate or diethanolamine has been incorporated.
Patent GB-856044-A (GB)
Title: Improvements in and relating to temperature measuring arrangements forming thermal images of electrical apparatus
Inventor: ALLEN PETER HENRY GAY
IPC: H02H5/04
Filed: 1956-05-04
Abstract: 856,044. Electric thermal images. BRITISH THOMSON-HOUSTON CO. Ltd. April 26, 1957 [May 4, 1956], No. 13861/56. Class 39(3). A device for measuring the temperature of insulating liquid in which electric apparatus, e.g. a step-down transformer is immersed has a thermo-metric member 1 placed in a thermal image of a part of the electric apparatus, e.g. of the high voltage end of the secondary winding SW of the transformer, the temperature of which is to be measured, and on electrode 2 comprising a perforated metal gauge shield is placed adjacent a heating resistor 3 of the thermal image to produce an electric field simulating adjacent the thermo-metric member 1 the electric field conditions of the said part of the apparatus. Thus the thermal image comprises a resistance heating coil 3 supplied through a current transformer CT associated with the lead of a high voltage primary winding PW of the transformer, is exposed to cooling conditions similar to those of the transformer winding and has the same time constant. The electric field gradient at the coil surface immersed in oil influences and may improve the heat transfer from the coil to the oil. The thermo-metric member 1 is placed in a pocket of the transformer tank and is surrounded by the heating coil 3. The electric field is adjusted by a correct combination of the ratio of voltage of the field to the transformers voltage and the spacing of the electrode from the coil 3, the electric field in the thermal image is equivalent to that of the transformer winding. The electrode 2 may be a coil or cage to facilitate oil circulation and may be similar to an earthing shield of known thermal images In a modification, the heating coil 3 is insulated to serve as the high tension electrode, and a low tension electrode is formed as described above or by an adjacent portion of a transformer tank.
Patent GB-514780-A (GB)
Title: Improvements in or relating to calculating machines
Filed: 1938-05-09
Abstract: 514,780. Calculating-apparatus. BALDWIN, R. E. May 9, 1938, No. 13863. Drawings to Specification. [Class 106 (i)] A calculating machine is provided with a plurality of totalizers including two algebraic totalizers, means for transmitting an amount from one totalizer or the other, and means operative under control of the transmitting totalizer to condition the receiving totalizer to subtract when the amount held by the transmitting totalizer is negative. The invention is shown applied to a record card controlled tabulating machine ofthe kind described in Specification 405,666 and provided with three rear add and subtract totalizers and three associated front totalizers which serve to accumulate grani totals. The rear totalizers are allotted to different fields of the cards to accumulate items of a different class. In total taking operation following a change in sub-group designation the first rear totalizer prints its sub - total through the agency of the printing elements of the corresponding front totalizer and transmits the amount thereto. Then the second and third rear totalizers successively print their sub-totals and transmit the amounts to their respective front totalizers and also to the first rear totalizer so that the latter holds the sum of the sub-totals printed while the wheels of the second and third rear totalizers are zeroized. Thereafter a fourth total taking operation occurs during which this sum or cross total is printed from the first rear totalizer and the wheels left at zero. When a change in main group designation occurs the above four total operations are followed by a grand total taking operation simultaneously from all the front totalizers. In the machine described the card feed control is similar to that set fourth in Specification 371,849, the designation pin box and item sensing pin box are of the type described in Specincations 271,935, [Class 106 (i)], and 401;012 respectively, the zero :stop control is similar to that set forth in Specifications 26896/13 and 319,086, [both in Class 106 (i)], the printing mechanism is of the known form described in Specification 461,612, and the total shaft control and the change of designation with a five cycle control are similar to that described in Specifications 426,054 and 484,911 respectively. Means is also providedfor causing two additional total taking operations to occur immediately after the total taking operation which results from a change in designation by the action of the cam on shaft 153 and lever 160, Fig. 1, as described in Specification: 484,911.
Patent GB-499490-A (GB)
Title: An improved manufacture of ethers and alcohols from olefins
IPC: C07C29/06
Filed: 1937-05-19
Abstract: <PICT:0499490/IV/1> <PICT:0499490/IV/2> <PICT:0499490/IV/3> Ethers are produced by absorbing olefines in acid to form an acid liquor, diluting the liquor with alcohol to produce an acid concentration of 25-65 per cent, maintaining the mixture at elevated temperature and pressure until equilibrium is substantially attained, and subsequently separating the products. Mixed ethers are produced if the added alcohol is not the same as that producible from the acid liquor.  Sulphuric acid containing absorbed olefine supplied by a pipe 36 is divided, one part being passed to a tower 39, to which water is added from a pipe 40 and the alcohol produced is passed into a reaction tower 47 which receives the rest of the acid liquor from the pipe 36.  The mixture is maintained in the reaction tower for instance for 4 hours, and is then passed to a stripping tower 51, the alcohol and ether vapours being then led to a fractionating tower 55, the alcohol being returned to the reaction tower 47.  When enough alcohol is thus returned, it may be unnecessary to obtain alcohol in the tower 39.  In an example propylene is absorbed in sulphuric acid of 92 per cent, isopropyl alcohol is added and the mixture is heated overnight at 100 DEG  C., the pressure produced being 130 lb. Specifications 362,593 and 403,654 are referred to.  The Specification as open to inspection under Sect. 91 mentions phosphoric, hydrochloric and acetic acids and zinc and aluminium chlorides as catalytic agents for the treatment of the olefines and describes a process in which an olefine is passed into a mixture (contained in an autoclave) of an aqueous catalyst and an immiscible solvent which takes up the ether produced; in this process the olefine may be wholly or partly replaced by an alcohol.  In an example with reference to Fig. 1 (Cancelled), the gaseous olefine is passed from a pipe 4 into an absorption tower 1 containing the aqueous catalyst and a solvent such as a saturated hydrocarbon, water being admitted from a branched pipe 8.  The tower is maintained at 50-150 DEG  C. and at least 2 lb. partial pressure of olefine.  In another example with reference to Fig. 2 (Cancelled), olefine in liquid or dissolved form is treated with sulphuric acid of 60 per cent or other catalyst in a reaction vessel 23.  Acid of 1-84 per cent may be used.  The liquid olefine is passed through the catalyst by means of a spray 25. Several detailed examples of this kind are given for the treatment of propylene and olefines in general, pressures up to 200 lb. being mentioned.  The Specification also states that the dilution of the liquor may be effected with water or with water and alcohol: that the acid may be of 1-84 per cent and the pressure up to 2000 lb. or more.  The Specification contains also the subject-matter of Specification 501,577.  This subject-matter does not appear in the Specification as accepted.
Patent GB-993406-A (GB)
Title: Auto-chuck for a lathe
Inventor: MATSUDA SHIGEMATSU
IPC: B23B31/22
Filed: 1961-05-18
Abstract: 993,406. Chucks. MATSUDA KOGYO KABUSHIKI KAISHA. May 18, 1961, No. 13946/61. Heading B3B. A lathe chuck actuated to load and unload a workpiece without stopping the lathe comprises a body carrying concentric sleeves 9, 24, and clamping rollers 7, operated by the sleeves to clamp a workpiece. Sleeve 9 has cam surfaces 11 engaging the rollers, and recesses 19, engageable by pawls 22, and a spring urged centre 32 is carried by the chuck. In operation, sleeve 9 is stopped manually, the body continues to rotate and rollers 7 engage cam surfaces 11, pawls 22 engage recesses 19 to interconnect the body and sleeve 9, and the work is inserted in the chuck. Sleeve 24 is stopped manually, projections 27 disconnect pawls 22, and spring 12 rotates sleeve 9 relative to the body, to move the rollers inwardly to grip the work.
Patent GB-1512314-A (GB)
Title: Device for stopping a door in a predetermined position of rotation
IPC: E05C17/04
Filed: 1976-04-06
Abstract: 1512314 Door stops AKUSTIK MILJO AB 6 April 1976 [9 April 1975] 13975/76 Heading E2X A door stop 3 which is manually adjustable from one position (full-line in Fig. 2) where a door is held partially open, to a lowered position (broken line) where the door may close, consists of a one-piece moulded plastics device with a stop 33 pivotally attached by web 34 to a mount 31 secured to the door near its edge. Stop 33 has projections 33b which enter apertures 31b, of a figure of eight shape, to provide a snap-action between the two positions of the stop. Mount 31 is set just below the inside face of the door frame so that in the lowered position, stop 33 passes beneath rebate edge 2a.
Patent GB-678328-A (GB)
Title: Improvements in or relating to apparatus for loading textile material in tubular form
IPC: D06C3/00
Filed: 1950-06-07
Abstract: 678,328. Stretching tubular fabrics; rollers. PASOLD, I. June 7, 1950, No. 14195/50. Classes 42 (i) and 42 (ii). [Also in Group XIII] Apparatus for loading tubular textile material a on the pillar c of a drying apparatus comprises a conical member b which is applied to the top of the pillar c and which has in a recess at each side a pair of freely-rotatable rollers d. and a pair of rubber rollers f on spindles e driven by an electric motor h and disposed adjacent the rollers d, each roller f consisting of discs r of highly flexible rubber separated from one another by washers s. The frame i of the apparatus carrying the motor h has an endless belt q on rollers j and has guide members k and rollers m, n, o (Fig. 3). The material is drawn over the guide-members and on to the pillar c by the rotating rollers f. Specification No. 678,055 is referred to.
Patent GB-388352-A (GB)
Title: Process for the carrying away of waste heat developed in absorption refrigerators
IPC: F25B17/08
Filed: 1931-05-14
Abstract: 388,352. Refrigerating. NORMELLI, W. B., 11, Kaiserdamm, Charlottenburg, Berlin. May 14, 1931, No. 14239. Convention date, May 14, 1930. Void [Published under Sect. 91 of the Acts]. [Class 29.] Absorption machines and systems. - The generator-absorber of a reversing machine, particularly for domestic refrigerators, is cooled by water circulating between the generatorabsorber and a tank in heat transfer with a vessel containing water which may be used for household purposes. The machine comprises a centrally-heated generator-absorber 1 packed with a solid absorbent, e.g. a calcium salt, and disposed in a water tank 3 connected by circulation pipes 14, 15 with a tank 16 surrounded by a condenser coil 5 embedded in a solid, e.g. sodium phosphate, which melts at a temperature of from 40‹ to 60‹ C. and is arranged in a water vessel having a draw-off tap 20 and a porous extension 17 provided with a copper lining 18, and a condensate reservoir 8 having an evaporator coil 10 immersed in a vessel disposed in the refrigerator and containing a solution of glycerine in water which freezes at a temperature of from -5‹ to -10‹ C. and having a recess 19 for an ice tray. The solution is frozen during the evaporation phase of the machine and forms a cold accumulator for use during the generating phase. During normal heating of the generator-absorber the water circulates thermosiphonioally between the vessels 3, 16, but in the event of abnormal heating of the generator-absorber steam generated in the vessel 3 forces the water into the vessel 16 and itself passes to the latter vessel through the loop pipe 15. The water may be circulated between the vessels 3, 16 by pulsometer or other pumps In a modification, two machines are combined to give a continuous refrigerating effect. In this case, a thermostat may be provided in the tank 13 to maintain the temperature of the water below a predetermined maximum. In another arrangement, the machine, which is disposed beneath the heat-insulated storage chamber 38, Fig. 7, of a refrigerator, includes a centrifugal pump 33 driven by an electric motor 34 for circulating the water between the vessels 3, 13 and a fan 35 for forcing a current of cooling air over the coil 32 of the circulation piping. The refrigerator storage chamber is insulated by externally-silvered evacuated glass balls, the space between which is filled with collodium or rubber &c.
Patent GB-916827-A (GB)
Title: Improvements in or relating to guiding and retaining means for a window-fastening corrector
IPC: E05F7/08
Filed: 1961-04-20
Abstract: 916,827. Releasable fastenings. GRETSCHUNITAS G.m.b.H. April 20, 1961 [May 27, 1960], No. 14284/61. Class 44. A corner deflector for guiding a chain 6 connecting horizontal and vertical locking bars in a window fastening comprises a U-shaped guide 2 and a support 1 having a right-angled corner 1<SP>1</SP> and is characterized in that lugs 3 stamped out of the support and lugs 5 projecting from the U-shaped guide form the guiding surface for the chain. German Specification 952,689 is referred to.
Patent GB-1345447-A (GB)
Title: Copolymers of substituted norbornenes
IPC: C08F210/18
Filed: 1971-05-11
Abstract: 1345447 Polar-substituted norbornene copolymers SOC NATIONALE DES PETROLES D'AQUITAINE 11 May 1971 [11 May 1970] 14300/71 Heading C3P Copolymers of monolefins with a norbornene (bicyclo[2,2,1]hept - 2 - ene) derivative of the formula where q is 0 or an integer of 1 to 12, p is 0 or 1, R 1  is a pyridyl radical when p is 0 and a C 1-16  hydrocarbon radical when p is 1, and R 2  to R 8  are hydrogen or C 1-12  hydrocarbon radicals, are obtained by conventional Zeigler-Natta polymerization. Non-conjugated dienes may also be included in the monomer mixture. The norbornene monomer may be complexed with a Lewis Acid, e.g. Al alkyls and halides, ZnU 2  and SnCl 4 . In examples ethylene and, optionally, propylene or butene or propylene and dicyclopentadiene are copolymerized with the methylacrylate or 2-vinyl pyridine adducts with cyclopentadiene i.e. 6-(2-pyridyl)- or 6-methoxy carbonyl-bicyclo-(2,2,1) hept-2-ene, in the presence of (C 2 H 5 ) 2 Al Cl or (C 2 H 5 ) 8 Al 2 Cl 3  and- VOCl 3 , in some cases the polar norbornene monomer being complexed with C 2 H 5 .AlCl 2 .