baber/WOPTO huggingface dataset:
Patent GB-402951-A (GB)
Title: Improvements in or connected with means for launching aircraft
IPC: B64D5/00
Filed: 1933-01-14
Abstract: 402,951. Aircraft for launching other aircraft. MAYO, R. H., 39, St. James's Street, Pall Mall, London. Jan. 14, 1933, No. 1311. Drawings to Specification. [Class 4.] A composite aircraft comprising two component aircraft capable of separate flight mounted one on top of another and initially connected together by releasable locking means so as to take off, fly and land as a single unit, has the wings of its upper component formed of a profile and aspect ratio of appreciably wider angular range between the angle of no lift and the angle of maximum lift than the corresponding angular range of the profile and aspect ratio employed for the wings of the lower component. As the speed of the composite craft increases the proportion of the lift taken by the wings of the upper component increases and that of the lower component diminishes until a speed is reached at which a force is available for ensuring the safe separation of the components when the locking means are released, without the necessity of adjusting the lift coefficient of the wings of the upper component. The Fokker F VII or G÷ttingen 387 wing section may be employed on the upper component and the R.A.F. 15 or R.A.F. 34, or according to the Provisional Specification R.A.F. 31, for the lower component. Alternatively the angular range of the wings of the upper component may be increased by the use of fixed or adjustable slots, in which case the R.A.F. 15 or R.A.F. 31 wing section may be used, or the wings of the lower component may have initially depressed flaps which are raised automatically or mechanically as the speed increases so as to reduce their angular range. The invention may be combined with the means for adjusting the lift coefficient of the wings of the upper component described in Specification 400,292 in which case the difference in the angular range may be less or the amount of adjustment provided for may be diminished. The releasing means described in Specifications 400,292 and 402,997 may be incorporated.
Patent GB-1014472-A (GB)
Title: Improvements relating to displacement measuring devices
Inventor: SPENCER ROLF EDMUND
IPC: G01D5/20
Filed: 1961-01-12
Abstract: 1,014,472. Measuring angular displacement electrically. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 6, 1962 [Jan.12, 1961], No. 1378/61. Heading G1N. The angular displacement of a large diameter table, e.g. of a gear hobbing machine, is measured by an arrangement of three discs 1, 4, 5 coaxial with the table, each with a perpendicular flanger at its edge, each flange carrying a uniformly spaced zig-zag conductor 6 on an insulating base, the outer disc 4 being attached to the table, the inner disc 5 being fixed to the machine bed, and the centre disc 1 being rotated at a high speed relative to the table, whereby a direct current fed to the conductors on disc 1 via slip rings 22 induce A.C. voltages in the other two discs, whose phase difference is an indication of the angular displacement. In the simple case, the conductors on each of the three discs are connected in series, and a phase displacement of 360 degrees represents an angular displacement equal to twice the distance between adjacent conductive limbs on any one disc. To obtain an additional larger measuring unit, alternative groups of twenty conductive limbs on scale 1 have a resistor R in shunt to reduce the current in these conductors. This produces an amplitude modulation in the induced voltages on discs 4, 5. The conductors on these discs are also connected into groups of twenty limbs, alternate groups being joined in series. For each disc, one series is con-- nected between terminals 11, 12 of a centre-tapped auto-transformer 9, and the other series is connected between the centre tap 11 and earth 10. The voltage between terminals 10, 12 is the sum of the voltages in the two series, as before, and the phase difference between this voltage for each disc 4, 5 represents the fractional displacement over a distance of twenty conductor spacings. The voltage between outer terminal 13 and earth 10 is the difference of the voltages in the two series, and is amplitude modulated, the phase difference between the amplitude modulations for each disc 4, 5 represents the fractional displacement over a distance of twenty conductor spacings. An alternative arrangement utilizes capacity coupling between the conductors and discs 1,4, 5,with alternate limbs of the conductors of scale 1 connected to the positive and negative terminals of the D.C. source.
Patent GB-563298-A (GB)
Title: Improvements in or relating to endless film winding devices for motion picture projectors
IPC: G03B21/32
Filed: 1943-01-27
Abstract: 563,298. Kinematograph projectors. DEHN, F. B. (Mills Novelty Co.). Jan. 27, 1943, No. 1398. [Class 97 (i)] In an endless film winding device for kinematograph projectors, of the type in which an endless coil of film is rotatably mounted and a portion of it is formed into an outside loop which is threaded through the projector, the innermost convolution of the coil being fed out by a power - operable drive element, the drive element directs the film at an angle into the loop and is driven from a source of uniform power through a variable-speed gearing which is controlled through a brake by means engaging the film in the loop, so that the rate of winding is determined by the size of the loop. As shown, the endless film coil 33 is mounted on a circular series of anti-friction rollers 32 carried by a frame member 31. An external loop is formed by a part of the film extending from the innermost convolution outwardly at an angle to the plane of the coil and passing round a drive sprocket 41, through the flin-feeding means and gate of the projector, through an automatic switch 27 which stops the projector on breakage of the film, then through a sound reproducer 13, and thence to the outer convolution of the coil. The sprocket 41 is mounted on ball-bearings on an adjustable sleeve 56, and rotates in a plane inclined to that of the film coil. It is driven through an internal gear 47 and gear 54 from a shaft 42 carrying a disc 71 on which are mounted the planetary wheels 66 of an epicyclic gearing, these wheels engaging a central gear 68 and an internal ring gear 69. The gear 69 is secured to a pulley 73 rotated by the projector, as shown, or other power source, and the gear 47 is secured to a brake drum 76 acted on by a brake 85 operated by a pivoted arm 81 carrying a friction roller 83 which engages the film loop. The brake is automatically adjusted by the action of the loop on the arm 41 to allow sufficient rotation of the gear 68 to reduce the effective ratio of the epicyclic train to a value at which the sprocket 41 pays out the film at the correct speed, thus maintaining a loop of constant size. The arm 81 operates the brake through a spring member providing a lag in operation which prevents excess stressing of the film in the loop, and is spring-loaded to assist the application of the brake by the film.
Patent GB-903304-A (GB)
Title: Improvements in or relating to devices for the spraying of water or other fluids
Inventor: SLATTER LEONARD HORATIO
IPC: A01G25/02
Filed: 1959-01-14
Abstract: 903,304. Spray hose. WINDOLITE Ltd. Jan. 1, 1960 [Jan. 14, 1959], No. 1406/59. Class 69 (3). A hose, e.g. of polyethylene, with outlets 7, 8, 9 therealong has integral, substantially tangential, ribbed fins 2, 3, which support it in use. One end of the hose is closed and the other end is connected to a union by which water is supplied.
Patent GB-574345-A (GB)
Title: An improved device for use in calculating electrical values
IPC: G06G1/12
Filed: 1944-01-25
Abstract: 574,345. Slide - rules. WRIGHT, K. M. B., and IONIC LABORATORIES, Ltd. Jan. 25, 1944, No. 1407. [Class 106 (i)] A disc type logarithmic calculating appliance for computing electrical values comprises three superposed discs a, band c concentrically mounted to turn about a common centre e, the discs bearing peripherally arranged logarithmic scales denoting values in terms of electrical power f, current g, voltage h and resistance k, and a radial cursor d for transferring readings from one scale to another. The intermediate disc b has a transparent radial projection e to assist in setting.
Patent GB-719947-A (GB)
Title: Improvements in or relating to apparatus for counting by weighing
IPC: G01G19/42
Filed: 1952-01-17
Abstract: 719,947. Weighing apparatus. WESTWOOD, H. W., and WESTWOOD, W.i C. C. March 10, 1953 [Jan. 17, 1952], No. 1424/52. Class 143 Counting by weighing. A counting scale comprises a hollow, slotted balance beam 1 balanced on a knife edge fulcrum 5 and rotatably mounting inside it a shaft with screw-thread portions 27, 28 of opposite hand on opposite sides of the fulcrum respectively carrying by means of screwthreaded collars and stirrups 16, 21, guided in slots in the beam, a scale pan 14 on which the articles to be counted are placed and a counterweight 20 balancing the scale pan when empty. One end of the beam is pivotally connected by a rod 10 to a spring balance indicator 7. A few only of the articles to be counted are first placed in the scale pan 14 and the screw-threaded shaft is rotated by an electric motor 6 carried on the beam and energized through a switch and rheostat 29 in the beam supporting pillar 3, causing a traverse of the scale pan 14 and counterweight 20 in opposite directions from the fulcrum without disturbance of initial balance, until the indicator 7 exactly registers the number of articles in the pan. The motor is then stopped and, on any load of articles then being placed in the scale pan, their number is directly shown on the indicator. By setting the scale to indicate a number of unit weights, e.g. ounces, placed in the scale pan, the apparatus can be used also as a weighing machine.
Patent GB-332208-A (GB)
Title: Process for the manufacture of azo dyestuffs
IPC: C09B29/20
Filed: 1929-01-15
Abstract: 332,208. Carpmael, A., (I. G. Farbenin. dustrie Akt.-Ges.). Jan. 15, 1929. Azo dyes: azo dyes, forming on the material.- Azo dyes insoluble in water are made in substance on the fibre, or on a substratum by coupling a diazotized o-aminobenzophenone or a derivative thereof containing no sulpho-, carboxy- or nitrogroup with a coupling component e.g. arylides of 2 : 3-oxynaphthoic acid or diacetoacetic arylides. They are fast to bucking, chlorine and light. In examples the following dyestuffs are made. on the fibre (1) o-aminobenzophenone # diacetoacetico-tolidide or 2 : 3-oxynaphthoic acid alpha-naphthalide; (2) 4<1>-methyl-2-aminodiphenylketone # diacetoacetic-o-tolidide; (3) 4-chlor-2-aminobenzophenone ->- 2-oxy-3-naphthoic acid-4<1>-chloro- 2<1>-toluidide; and (4) the dyestuff o-aminobenzophenone # 2 : 3-oxynaphthoic' acid anilide is made in substance. 4-Chlor-2-aminobenzophenone is made from 4- chloro - 2 - (p-toluenesulphon-)amino - 1-benzoyl chloride, benzene and aluminium chloride, and the product saponified. 4-Chlor - 2-(p-toluenesulphon-)-amino-2-benzoylchloride is made from 4-chlor-2-aminobenzoic acid and p-toluenesulphonchloride and then with thionylchloride. Reference has been directed by the Comptroller to Specifications 6379/12 ; 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], 210,217 and 279,146.
Patent GB-370987-A (GB)
Title: Improvements in or relating to reciprocating steam engines
IPC: F01B7/16
Filed: 1931-01-15
Abstract: 370,987. Multiple-expansion engines. AKTIEBOLAGET GÍTAVERKEN, Gothenburg, Sweden. Jan. 15, 1931, No. 1443. Convention date, Jan. 16, 1930. [Class 122 (iii).] In a multipleexpansion engine, the intermediate and low-pressure receiver steam i s superheated by heaters arranged in the boiler flue gases or by friction and is circulated through or past the heating means by pumps, turbo compressers, &c., driven by an exhaust - steam operated turbine or by an external source of power. In the arrangement shown, the inlet and outlet passages 15, 17 which pass the steam through intermediate and low-pressure heaters 16, 18 respectively are connected to either side of the receivers 7, 8 respectively and may contain control valves 21. The pumps &c. 13, 14 are driven by a turbine 10 operated by the exhaust from cylinder 3. The turbine 10 exhausts to the condenser 12. A valve 24 may byepass the exhaust from cylinder 3 direct to the condenser. A wall 20 ensures the exhaust steam from cylinder 2 passing directly to the compresser 14. A modification is described wherein the friction of the pump &c. and the valves 21 is sufficient to effect superheating without the heaters 16, 18. The valves 21 may be dispensed with and lowefficiency pumps 13, 14 used wherein the driving energy is transformed into heat. The Specification as open to inspection under Sect. 9 (3) (a) comprises means for heating the steam supply from the boiler. This subject matter does not appear in the Specification as accepted. Specification 370,990 is referred to.
Patent GB-939672-A (GB)
Title: Apparatus for the electrolytic cleaning and coating of metal objects
IPC: C25F7/00
Filed: 1962-01-15
Abstract: 939,672. Electrolytic cleaning and coating of metal objects. EUROPEAN ATOMIC ENERGY COMMUNITY, EURATOM. Jan. 15, 1962 [Jan. 14, 1961], No. 1466/62. Class 41. Apparatus for use in electrolytically cleaning and coating a cylindrical metal object 7, such as a uranium fuel element for use in nuclear reactors, comprises a drum-like electrode formed by two perforated semi-cylindrical parts 3 and 4 and at least two circular polyethylene covered metal hoops 6, 6<SP>1</SP> which support the cylindrical object 7 in a tank 8. The electrode and hoops are fixedly mounted on an axle 1 and can be oscillated by a motor-driven crank mechanism 9. The hoops lie in convergent planes to ensure that the oscillation continuously changes the points of support of the object and also the portion of the object's surface which faces the electrode. Movement of the object axially of the hoops is prevented by polyethylene guides 10, 10<SP>1</SP> and current is supplied to the object by a flexible contact element 12. In use, the object may be electrolytically cleaned while facing the drum part of greater radius and electrolytically coated while facing the drum part of smaller radius, the drum being connected first as cathode and then as anode. The half of the drum electrode intended for cleaning is formed of nickel or stainless steel and the half intended for electrolytic depositing is of the metal it is desired to deposit or in the case of chromium plating may be of an inert metal such as lead.
Patent GB-881630-A (GB)
Title: Rocket and missile fuel
IPC: C10L1/04
Filed: 1960-01-19
Abstract: A rocket and missile fuel consists essentially of a mixture of alkyl cyclohexanes, each having a total of 4 to 5 carbon atoms in the alkyl group or groups, the mixture having a freezing point of or less than -100 DEG  F. and containing less than 1% by weight of aromatic hydrocarbons.  Thus, the fuel may consist essentially of a mixture of diethyl cyclohexane, methyl propyl cyclohexane, butyl cyclohexane, dimethyl ethyl cyclohexane, methyl butyl cyclohexane, tetramethyl cyclohexane, pentyl cyclohexane, ethyl propyl cyclohexane, dimethyl propyl cyclohexane, trimethyl ethyl cyclohexane, diethyl methyl cyclohexane and pentamethyl cyclohexane.  The fuel may also contain about 10% by weight of methyl hydrindone.  The fuel may be prepared by catalytically hydrogenating a feedstock consisting of the corresponding alkyl benzenes, with or without up to about 10% by weight of methyl indanes (see Group IV(b)).  Such a feedstock may be obtained by solvent extracting the products obtained by reforming naphthenic hydrocarbons.ALSO:A rocket and missile fuel (see Group III) consists essentially of a mixture of alkyl cyclohexanes, each having a total of 4 to 5 carbon atoms in the alkyl group or groups, the mixture having a freezing point of or less than - 100 DEG F. and containing less than 1% by weight of aromatic hydrocarbons.  Thus, the fuel may consist essentially of a mixture of diethyl cyclohexane, methyl propyl cyclohexane, butyl cyclohexane, dimethyl ethyl cyclohexane, methyl butyl cyclohexane, tetramethyl cyclohexane, pentyl cyclohexane, ethyl propyl cyclohexane, dimethyl propyl cyclohexane, trimethyl ethyl cyclohexane, diethyl methyl cyclohexane and pentamethyl cyclohexane.  The fuel may also contain about 10% by weight of methyl hydrindane.  The fuel may be prepared by catalytically hydrogenating a feedstock consisting of the corresponding alkyl benzenes, with or without up to about 10% by weight of methyl indanes.  Suitable catalysts for the hydrogenation are nickel tungsten sulphide, cobalt molybdate, platinum on alumina, copper-promoted nickel and nickel on kieselguhr.  The feedstock to the hydrogenation may be obtained by solvent extracting the products obtained by reforming (e.g. platinum hydroforming) naphthenic hydrocarbons.
Patent GB-668121-A (GB)
Title: Improvements in screw vices
IPC: B25B1/12
Filed: 1950-01-25
Abstract: 668,121. Vices. WERNE, C. S. L. Jan. 25, 1950 [Jan. 27, 1949], No. 1929/50. Class 61 (ii). In a vice wherein spaced U-shaped guide members 4 are fixed to a base 1, the slide block 11 carrying the movable jaw 8 is connected to another slide block 14 by a screw having oppositely threaded ends 24, 25 which when turned in a direction causing the blocks to separate, forces the jaw 8 towards the fixed jaw 7 and locks the slide block 14 to the guide by means of a wedge shaped clutch 17. The threaded sleeves 9 and 12 are secured to the slide blocks 11 and 14 by intermediate members 10 and 13 which fit between the spaced flanges 6 of the guide members, the wedge 17 being interposed between the lower inclined surface 15 of the block 14 and the lower flanges of the guide members. Rotation of the screw in the opposite direction releases the jaw causing the slide 11 to abut the narrow end of the wedge 17 which slides backwards under the influence of a plate spring 20 fixed to the end of the slide block 14. Holed lugs are provided on the base plate 1 for attaching the vice to a bench. A special guide surface may be provided for the clutch member.
Patent GB-192900-A (GB)
Title: Improvements in or relating to automatic lantern slide projection machines
IPC: G03B23/12
Filed: 1922-01-24
Abstract: 192,900. Collingburn, J. W. Jan. 24, 1922. Reel and endless-coil apparatus.-In a lantern slide projector of the kind in which a belt of slides passes around a number of revolving cubes or boxes one of which is positively driven, the belt is arranged to move in a vertical plane around two such cubes one of which is provided with stop mechanism for holding the belt stationary whilst each slide is being projected. The cubes 6, 7 are mounted on spindles 5, 5a between posts 3, 4, the spindle 5 also carrying a pair of cross-arms 13 and a disc 8, Fig. 2, provided with depressions 8<a> with which engages a stationary spring-urged ball 11. A wheel 16 driven by a motor 18 carries an arm 17 adapted to strike against pins 14 on the arms 13 to rotate the cube 6 intermittently the motion being periodically arrested by the ball 11 entering one of the depressions 8<a>. The slides are mounted in U- shaped frames 24 which are hinged together to form the band.
Patent GB-718200-A (GB)
Title: Improvements relating to cooling systems for dynamo-electric machines of aircraft
Inventor: BALL REGINALD DONAHOE
IPC: H02K9/10
Filed: 1952-01-25
Abstract: 718,200. Cooling air. ENGLISH ELECTRIC CO., Ltd. Jan. 16, 1953 [Jan. 25, 1952], No. 2108/52. Class 64(3) [Also, in Groups XXXIII and XXXV]  A cooling system for a dynamo-electric. machine, such as a generator 1, installed in an. aircraft comprises a closed cooling. circuit for the circulation in the direction. of arrows A2 of a gaseous cooling fluid, in which a circulating pump 2 is connected with a heat exchanger 4 and with the machine housing, the heat exchanger having a cooling surface so disposed in the aircraft as to be cooled, directly or indirectly, by the airstream A4 flowing over a part of the external surface of the aircraft, whereby the fluid is cooled by the air-stream. As shown, the circuit through the machine, pump and heat-exchanger is made through trunking 3, and the heat exchanger is formed integrally with the leading edge of a wing of the aircraft, but alternatively it may be fitted in other parts of the aircraft, e.g. the fuselage, and may be disposed beneath the aircraft skin provided the airstream cools the fluid. The circuit operates at or slightly below the pressure and humidity of air at ground level and may be sealed or may, in the case of an aircraft having a pressurized cabin, communicate by a pipe 5 with the cabin. If the machine has brushes 1b they are exposed to the fluid.
Patent GB-264888-A (GB)
Title: Improvements relating to compound steam engines without an intermediate receiver
IPC: F01B17/04
Filed: 1927-01-25
Abstract: 264,888. Stumpf, J. Jan. 25, 1926, [Convention date]. Engines with parallel cylinders with axes perpendicular to main shaft.- A compound engine of the Woolfe type is provided with a uniflow low-pressure cylinder and a single valve controls the high-pressure inlet and exhaust and the lowpressure inlet. The valve-chest is placed in the angle between the cylinders and forms a single casting therewith. The low pressure cylinder crank follows the high-pressure crank at an angle less than 180‹, which may be reduced to between 120‹ and 135‹ for engines running in one direction. The high-pressure cylinder may be a uniflow one, the valve would then control only the high-pressure admission. A four-cylinder, reversible engine comprising two compound units with the high-pressure cylinders a outside working on cranks at 90‹ is shown in Fig. 1. The low-pressure cylinder cranks follow the highpressure cylinder cranks in the forward direction at an angle of 150‹. The spindles p of the valves e are actuated from a common transverse shaft q provided with an adjustable eccentric. Separate stop valves are provided for each unit in addition to' the main inlet valve which units also have separate exhaust valves z. Draw-off steam valves n for auxiliary purposes are provided. Specifications 13551/14 and 263,177, [both in Class 122 (ii), Steam-engine distributing and expansion valves &c.], 264,887 and 264,889 are referred to.
Patent GB-754832-A (GB)
Title: Improvements in or relating to cupboards and the like
IPC: A47B77/04
Filed: 1954-01-25
Abstract: 754,832. Cupboards. LAMBERT, H. J. M., and MONGIN, G. P. Jan. 25, 1954 [Feb. 4, 1953 ; Jan. 15, 1954], No. 2176/54. Class 52(1). A wall cupboard is provided with a pair of vertically sliding doors 4, À 5 substantially the full width of the front face. Blade springs may be associated with the guide tracks to hold the doors against unintentional movement or spring counterbalancing means may be used. The sliding doors may be mounted in a hinged door-frame. Specification 640,307 is referred to.
Patent GB-790163-A (GB)
Title: Improved method and apparatus for heating continuously moving threads, and like filamentary textile material
IPC: D01F9/32
Filed: 1956-01-23
Abstract: 790,163. Electric heating resistors. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Jan. 23, 1956 [Feb. 11, 1955, Sept. 22, 1955], No. 2208/56. Class 39(3) [Also in Group IX] A running textile or thermoplastic yarn 9 is heated by contact with the walls of a tube heated by passage of current therethrough (see Group IX) said tube having an inner diameter not exceeding 0.8 mm. and having a helical slit which facilitates "threading-up" but prevents escape of the yarn. Alternatively and as shown, a tubular member may be formed by a helically wound spring 10 the ends of which are held by arms 2 and 3 supplying current to the spring through leads 5 and 6, the arm 3 being fixedly atached to an insulated block 4 and the arm 2 being slidably attached thereto by means of a collar 11 and the position of which is adjusted to stretch the spring to produce any predetermined inner diameter thereto.