baber/WOPTO huggingface dataset:
Patent GB-633420-A (GB)
Title: Improvements in and relating to motion picture composite photography
IPC: G03B15/08
Filed: 1946-11-25
Abstract: 633,420. Composite kinematography. KUDAR, J. Nov. 25, 1946, No. 34943. [Class 98 (ii)] In the travelling mask process, particularly for colour work, the background is illuminated by a narrow spectral range in the visible spectrum against which the emulsion of at least one of a number of films simultaneously exposed is protected by a sharply selective filter. Mercury vapour lamps with yellow filters, or preferably sodium vapour lamps are used for illumination of a plain background and the foreground scene is photographed through a didymium or neodymium filter. The background may be coloured yellow and the foreground illumination may be through neodymium filters. A subtractive colour film and a single emulsion film may be exposed simultaneously with a beam splitter-the colour film through a neodymium filter, the single emulsion film through a yellow filter. Alternatively, two bipacks may be similarly exposed, one for red and green records through a neodymium filter, the other having an only-blue sensitive emulsion for the blue record and an emulsion for recording the mask protected by a yellow filter. For black-and-white or additive colour films a single bipack may be used with the foreground scene film in front and a panchromatic film behind protected by a yellow filter, the foreground illumination being through didymium filters.
Patent GB-1324391-A (GB)
Title: Compositions for non-woven textile fabrics
IPC: D04H1/54
Filed: 1970-07-20
Abstract: 1324391 Non-woven fabrics RHONE PROGIL 20 July 1970 [25 July 1969] 34989/70 Heading D2B A composition suitable for making non- woven fabrics by a wet process comprises a mixture of at least 45 parts of viscose staple fibre, 15 to 20 parts of bleached wood pulp, I to 10 parts of refined polynosic fibres, 5 to 15 parts of polyamide fibres and 15 to 25 parts of acrylic fibrils per 100 parts by weight. The composition may be formed into a non-woven fabric by a paper-making process. An aqueous solution of a cationic polyamide may be added to the fibrous composition before sheet formation. The non-woven fabric may be sujected to heat and/or mechanical treatment. The viscose staple fibre may be modified by treatment with a polymerisable ethylenic monomer, e.g. acrylic acid or acrylonitrile, in the presence of ionising radiation.
Patent GB-792194-A (GB)
Title: Improvements in and relating to sealing elements or gaskets
IPC: E06B7/23
Filed: 1954-12-03
Abstract: 792,194. Sealing oven doors. JONES, STROUD & CO., Ltd., and CLARKE, G. Oct. 4, 1955 [Dec. 3, 1954], No 34993/54. Class 126 [Also in Groups X and XXVI] A gasket 10a for sealing parts subjected to high or low temperature conditions, such as the doors 13 of ovens, refrigerators, &c. comprises in cross-section a resilient hollow part 11 and an integral flange 12 and is constituted by fabric made from fibre glass yarn and set by heat treatment which fuses intersecting or contacting parts of the yarn together, the flange 12 comprising two thicknesses of the fabric. The gasket is preferably of braided tubular form and subjected to heating and shaping in a heated mould or die to a temperature of about 550‹C. The flange 12 is clamped to the door 13 by a strip 15 and the hollow part 11 is sealingly deformed between the door and the opening surround 17. In a modification, Fig. 5, the gasket comprises, in cross-section, two hollow parts 11b interconnected by a web 12b secured in a channel 20 in the door by a member 21. In a further modificfiation Fig. 7 (not shown) the flange is in the form of a bead reinforcement by a wire or a cord of glass fibres or asbestos.
Patent GB-467821-A (GB)
Title: Improvements relating to mattresses and the method of manufacture thereof
IPC: A47C27/04
Filed: 1935-12-18
Abstract: 467,821. Compound fabrics. VAUGHAN, E. Dec. 18, 1935, No. 35060. [Class 140] [Also in Group XIV] Covering pads for a spring-interior mattress are constituted either by two superposed pads b or by a composite pad having a fabric layer between two layers of stuffing material and outer fabric coverings. The pads are quilted by ornamental stitching and are preferably made in continuous lengths with the stitching following the lines d on which the sections are to be severed. Reference has been directed by the Comptroller to Specifications 106,181 and 325,915, [both in Class 52 (iv)].
Patent GB-174583-A (GB)
Title: Improvements in alternating current motor groups
IPC: H02K17/38
Filed: 1921-12-31
Abstract: 174,583. Forges et Ateliers de Constructions Electriques de Jeumont, (Assignees of Ateliers de Constructions Electriques du Nord et de l'Est). Jan. 26, 1921, [Convention date]. Alternating-current commutator and induction machines.-The no-load speed and the power factor on load of an asynchronous motor are con. trolled by means of an alternating-current commutator motor cascaded with the main motor and having extra displaceable brushes which may be shunted by a variable inductance, arrangements being also provided for braking the main machine dynamically. The rotor r, Fig. 2, of the asynchronous motor C is wound in three phases brought out to slip-rings band connected through the stator coils m of the series commutator motor E, rigid on the same shaft. to pairs of brushes A1 B1, A2 D2, A3 B3. These brushes are adjustable and are connected to a 3-phase adjustable inductance shown correspondingly lettered in Fig. 3. It is shown in the Specification that for each value of the inductance the group has a given no-load speed, so that by alteration of the inductance the group speed may be given. any value between the synchronous speed of the machine C and that of the cascaded group. When the rotor of the commutator machine is fed through a transformer, the no-load speed may be regulated by altering the inductance of the transformer. Regulation of the speed concurrent with a high power factor on load is effected by changing the numbers of rotor turns by moving one set of the brushes, e.g. B1, B2, B3, the other set remaining fixed. The full connections are shown in Fig. 5, in which the coils and brushes are similarly lettered to Figs. 2 and 3, and L is the starting resistance of the main motor C, I a oneway switch and K a two-way switch giving cascading and braking connections in the positions o and p respectively. The set is started by means. of the resistance L, switch I being closed, and at a certain speed the switch K is closed at o, giving cascade connections as in Fig. 2, and the switch I is opened. The speed and power factor are controlled by altering the inductance d and rocking one set of the brushes A, B. To stop the group by electric braking, the inductance is brought to its minimum value, the supply circuit is opened, the switch K closed at p and the brushes displaced to cause the commutator motor to generate through the resistance L. The Specification as open to inspection under Sect. 91 (3) (a) covers any method for varying the impedance of the commutator motor. It also states that the number of turns of the stator of the commutator may be varied as well as that of the rotor. It also shows an adjustable threelimbed inductance for connection to the brushes a1, a2, a3, Fig. 1, in known manner. This subject-matter does not appear in the Specification as accepted.
Patent GB-1275307-A (GB)
Title: Magnetic recording and reproducing system
Inventor: KIHARA NOBUTOSHI
IPC: H04N9/825
Filed: 1969-07-12
Abstract: 1275307 Recording and playback SONY CORP 12 July 1969 35215/69 Heading G5R In a magnetic recording apparatus which incoporates a means for guiding magnetic tape, first and second recording heads are moved in operation relative to the tape to trace two substantially parallel record tracks on the tape, the second at least partly overlapping the first. First and second input signals are applied to arrangements which respond thereto to provide first and second signals for application to the first and second heads respectively. The arrangement responding to the second input signal operates such that the signal recorded on the second track is of substantially higher or lower frequency than that recorded on the first track, to enable the recordings from the two overlapped tracks to be distinguished on playback. The system is particularly for use in recording luminance and chrominance video signals in separate tracks, whilst economizing on tape. The luminance and chrominance signals are separated by suitable filters from a video input signal, and the luminance signal is frequency modulated on a relatively high carrier frequency (3À3 MHz) before application to its related recording head, while the chrominance signal is beaten with a local oscillator frequency to provide a relatively low frequency signal (1À06 MHz) which is mixed with a pilot signal before application to its head. The head for the luminance signal may be narrower than that for the chrominance, and the head gaps may be angularly displaced from one another at about 30 degrees, that for the luminance signal being set transverse to the tape direction. The video recording system is of the normal type wherein the tape is wrapped helically around a support drum, the heads being rotated to form oblique recording tracks across the tape. The head separation is such that the tracks partly overlap, the luminance signals being recorded partly over the chrominance. The heads could be arranged so that the tracks fully overlap. A playback system must be provided which appropriately demodulates the luminance and chrominance signals.
Patent GB-873958-A (GB)
Title: The production of profiled paper or the like
IPC: B31D5/02
Filed: 1957-11-12
Abstract: 873,958. Profiled paper. MATOBA, H Nov. 12, 1957, No. 35251/57. Class 96. In the production of profiled paper, the moist paper 7 is held between two rubber sheets 5, 6 secured by bolts 8 in a casing 1, 2 into which air is admitted at 11, 12 to raise the pressure to 2-5 atmospheres. Air is then exhausted at 13 and the pressure in the upper part of the casing is increased to force the rubber and paper to conform to the shape of a mould 9 which has air passageways 10. The upper sheet is then removed, the paper is dried by hot air and is subsequently taken out and pressed between dies, the female die being of the same shape as the mould 9. Thin parts of the paper may be strengthened with a resinous vinyl cement, and the paper may be painted.
Patent GB-1362915-A (GB)
Title: Mobile crane
IPC: B66C23/74
Filed: 1972-07-28
Abstract: 1362915 Mobile jib cranes LEO GOTTWALD KG 28 July 1972 [11 Aug 1971] 35436/72 Heading B8B A mobile crane comprises a multi-axle chassis 10 supporting a slewing frame 13 having a luffing, telescopic jib 15 and coupled to a trailer 16, which may be single-axled but, as shown, is multi-axle. A supporting yoke 19 with a downwardly projecting pin 21 is fixed to the jib 15 and the pin 21 engages in a bore 22 in a supporting frame 18 on the trailer 16. During transportation crane counterweight 25 is attached, by means not shown, to the jib peak thus relieving the axle loading of the chassis 10. In use the. counterweight 25 is attached to slewing frame beam 29 and the trailer 16 uncoupled from the chassis 10.
Patent GB-1025711-A (GB)
Title: Improvements relating to automatic weighing apparatus
Inventor: CHILTON JOHN MOORHOUSE
IPC: G01G13/00
Filed: 1961-10-05
Abstract: 1,025,711. Electric selective signalling systems. W. & T. AVERY Ltd. Oct. 1, 1962 [Oct. 5, 1961], No. 35844/61. Heading G4H. In an automatic weighing system the instantaneous weight on a weigh-pan is compared with the required weight by adding the nines complement of the one to the other. As described contacts 18 are set in accordance with the nines complement of the desired weight and this number is added 3, 5, 6, to the instantaneous weight on the weigh pan, carries 6a being used to control the feed of material to the weigh-pan. The system described also includes an extra adder 7, 9 and a half-adder 11 so that a " dribble amount " can be added to the instantaneous weight number whereby a first carry 6a is produced before the desired weight is reached which causes the feed to slow to dribble speed. When the change to dribble is effected a switch 12 causes an " over-run " number (smaller than the dribble number) to be added in place of the dribble number whereby a second carry 6a is produced which actually stops the feed, the stop occurring sufficiently before the desired weight is reached to compensate for the over-run in the feed.
Patent GB-1482598-A (GB)
Title: Fluid motors
IPC: F01B17/02
Filed: 1974-08-14
Abstract: 1482598 Reciprocating fluid motors BURMAH OIL TRADING Ltd 14 Aug 1974 35919/74 Addition to 1440061 Heading F1M In the reciprocating fluid motor of Parent Specification, a spring-biased detent 32 is mounted on one valve plate 17A, to co-operate with recesses 30, 31 in the piston to resist any tendency for the valves to take up an intermediate position placing the motor in open-circuit.
Patent GB-863970-A (GB)
Title: Apparatus for conveying a composite glass assembly
IPC: B32B17/10
Filed: 1958-11-10
Abstract: 863,970. Conveyers. PITTSBURGH PLATE GLASS CO. Nov. 10, 1958 [Dec. 16, 1957], No. 35978/58. Class 78 (1). In apparatus comprising a first pair of conveyer chains 36 carrying at spaced intervals sets of supports 46 on which are supported curved glass windscreens and a second pair of conveyer chains 38 carrying supports 54 for the windscreens and driven at a slower speed than the chains 36, the windscreens are transferred from the supports 46 on the faster moving chains 36 to the supports 54 on the slower moving chains 38 by a pair of endless transfer chains 66 carrying a continuous succession of supports 68, the chains 66 being alternately driven at two different speeds corresponding with the speeds of the chains 36 and 38, respectively. The drive to all three pairs of chains is effected by a motor (not shown) which drives the chains 38 through a pair of sprockets 18, the drive being transmitted to the chains 36 through chain gearing 72 to 76, respective sprocket shafts 31, 32, and an intermediate shaft 71. The chains 66 are driven from the shaft 71 through chain gearing 91, a pair of clutches 92, 95 corresponding sprockets 94, 97 which provide different gear ratios, and respective sprocket chains 98, 100 extending from the sprockets 94, 97 to further sprockets on a shaft 64 carrying sprockets engaging the chains 66. Clutch 92 is adapted to be intermittently energized through a switch 101 operated by the supports 54 on one of the chains 38. Clutch 95 is an overrunning clutch adapted to overrun the sprocket 97 when the electromagnetic clutch 92 is engaged. The arrangement is such that when the clutch 92 is energized the chains 66 are driven at their faster speed and the clutch 95 overruns, while when the clutch 92 is de-energized the chains 66 are driven at their lower speed through the clutch 95. Specifications 843,072 and 843,895 are referred to.
Patent GB-1388847-A (GB)
Title: Direct-positive silver halide emulsions
IPC: G03C1/485
Filed: 1971-07-30
Abstract: 1388847 Pyrimidine derivatives AGFAGEVAERT 7 July 1972 [30 July 1971] 36017/71 Heading C2C [Also in Division G2] 1 - (2,4 - Dinitrophenylamino) - 2 - benzoylthio - 4,4,6 - trimethyl - 1,4 - dihydropyrimidine is prepared by adding benzoyl chloride with cooling to 1 - (2,4 - dinitrophenylamino) - 2- mercapto - 4,4,6 - trimethyl - 1,4 - dihydropyrimidine in pyridine. 1-(p-Nitrophenyl)-2- phenylsulphonylthio - 4,4,6 - trimethyl - 1,4 - dihydropyrimidine is prepared by adding benzene sulphochloride at 50 C. to 1-(p-nitrophenyl)-2- mercapto - 4,4,6 - trimethyl - 1,4 - dihydropyrimidine in pyridine, heating for 4 hours at 70 C. and pouring into water.
Patent GB-1428290-A (GB)
Title: Cooling of rotary furnace shell burner pipes
IPC: F23M5/08
Filed: 1973-07-30
Abstract: 1428290 Rotary furnaces; burners W L SHERWOOD 30 July 1973 [31 July 1972] 36116/73 Headings F4B and F4T A burner pipe 2 mounted on the outer shell of a rotary kiln and projecting radially into the furnace interior is cooled by apparatus comprising ducts 17 supplied with a gaseous cooling medium under pressure from an external supply ring header 22, the ducts being positioned within and along the length of the burner pipe adjacent to and at a selected distance from the inner pipe walls, there being an array of spaced cooling jet nozzle openings 18. The ducts are positioned longitudinally of the burner pipe in concentric annular arrangement and are joined together by at least one set of annular spacing rings 20. Specified distances between the nozzle openings and interior walls of the burner pipe, the composite area of the nozzle openings, air pressure and impingement velocities are described. A blower and supply duct supplying the ring header are mounted on the burner shell.
Patent GB-1041135-A (GB)
Title: Photographic enlarging apparatus
IPC: G03B27/40
Filed: 1964-09-04
Abstract: 1,041,135. Photographic enlarging apparatus. MEOPTA, NARODNI PODNIK. Sept. 4, 1964 [Sept. 6, 1963], No. 36342/64. Heading G2A. In a photographic enlarger (Fig. 1, not shown) having mechanism for automatic sharp focusing of two objective lenses 7a, 7b of different focal lengths, the lenses are fitted into a common rotatable carrier 6 which is in continuous engagement by means of followers 8a, 8b with two cams 9a, 9b for automatic focusing, which cams rotate about the same axis as does the carrier. The cams are mounted on a rotatable shaft 14 which is connected to a guide rod (3, Fig. 1) on which a plate, under which the carrier 5 is mounted, slides, When the object lens 7b, of shorter focal length, is in its operative position (Fig. 3), the rear edge of the guide cam 9a causes the end 133 of a lever 13 to switch on a lamp 175, which maybe the source of illumination of the enlarger, or an indicating lamp, or replaced by an audible indicating device. Similarly, when the carrier 6 is rotated to place lens 7a in its operative position, (Fig. 4, not shown), the light is switched off as edge 9a loses contact with the arm 133 and then the rear edge of the cam 9b causes arm 132 to switch on the lamp 175. If the carrier 6 is now lowered to alter the enlargement from maximum to minimum, the end of the arm 132 enters a recess in the cam 9b thus opening switch 173 and putting out the light. A supplementary condenser (58, Fig. 1) is inserted into the system when required, movement of the carrier 6 about the shaft 14 activating a rack and pinion to rotate a drum to which the condenser is attached.
Patent GB-1200932-A (GB)
Title: Fluorine-containing alkenoic acid esters and derivatives thereof
IPC: C08F20/02
Filed: 1967-08-08
Abstract: 1,200,932. Fluoroalkenoic acids and their derivatives and precursors. DOW CORNING CORP. 8 Aug., 1967 [2 Dec., 1966], No. 36344/67. Heading C2C. [Also in Divisions C3 and C5] Novel fluoroalkenyl compounds of the formula CH 2 =CH(CH 2 CH 2 ) n R f X, wherein R f  is a perfluoroalkylene radical, n is 0, 1 or 2 and X is -COOR<SP>1</SP>, -COOH, -CONH 2  or -C#N, R<SP>1</SP> being a C 1-6  alkyl group, are prepared by reacting ethylene with bromo-perfluoroalkanoic acid esters of the formula Br-R f -COOR<SP>1</SP>, dehydrobrominating the adducts of the formula BrCH 2 .CH 2 (CH 2 CH 2 ) n R f COOR<SP>1</SP> so formed, and if desired converting the esters produced to other compounds of the above formula by conventional methods.
Patent GB-1382171-A (GB)
Title: Data-communications systems
IPC: H04L29/10
Filed: 1972-08-03
Abstract: 1382171 Digital transmission HONEYWELL INFORMATION SYSTEMS Inc 3 Aug 1972 [3 Aug 1971] 36348/72 Heading H4P An interface for 2-way communication where either a teleprinter using monopolar current or a modem using bipolar signals can be selectively connected to a channel comprises first and second inverters connected one in each line, bipolar transmitters and receivers 20a, 22 and a bias source 26 connectible through a resistor 25 by switch 24 when teleprinter operation is desired. Echoes from teleprinting apparatus may be prevented from reaching terminal 15 by an AND gate 27 which eliminates echoes from terminal 14 but allows signals from a teleprinter to be received at terminal 15 when incoming signals at terminal 14 are not being received. An additional gate 28 enables a line break signal to be sent through the channel connected to a central processor via terminals 14, 15 to interrupt the sending of a message.
Patent GB-332172-A (GB)
Title: Improvements in ventilators
IPC: F24F7/007
Filed: 1929-11-27
Abstract: 332,172. Ogawa, Y. Nov. 27, 1929. Ventilating-shaft tops.- The direction of the air impinging upon the outer vanes of a revolving ventilating-shaft top is so controlled as to cause the revolving member to turn in either direction as required. The ventilator top comprises a cylinder 13, of diameter equal to that of the shaft 1, containing a helical vane 17 and carrying on its outer surface radial vanes 16, the whole being rotatable on a spindle 14. This revolving member is surrounded by a series of guide vanes or strips 7 arranged in circular formation, Fig. 2, and connected by a series of links 9 and 10 at their lower ends in such manner as to cause a simultaneous movement of all the strips when one is turned as by the rod 12 which passes down into the room to be ventilated. When the guide vanes are turned a current of air enters and impinges on the vanes 16 of the cylinder, causing a rotation in a definite direction according to the direction of the guide vanes. The helical vane 17 may thus be caused to act either as a supply or an exhaust fan. The strips 7 may be turned by other means such as by pinion gears. A cover 6 and a cylinder of gauze 5 are provided at the top of the ventilator.
Patent GB-984072-A (GB)
Title: Improved combustion chamber liner and method for making same
IPC: F27D1/00
Filed: 1963-09-16
Abstract: 984,072. Combustion chamber linings. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. Sept. 16, 1963 [Sept. 24, 1962], No. 36357/63. Drawings to Specification. Headings F4B and F4W. The outer surface of a combustion chamber liner of fibrous refractory material is coated with a mixture containing aluminium dihydrogen phosphate. Orthophosphone acid may be applied to the outer surface of the liner and hydrated alumina applied separately to form the coating. In another embodiment, a mixture of 39-60% of aluminium dihydrogen phosphate, 39-60% of a filler such as alumina, zircon or mixtures of them, and 1-5% of a plasticizer such as bentonite, or kaolin, alone or mixed, is applied to the liner to form a coating between 0À001-0À03 inch thick. The coating prevents the buckling of the liner in use.
Patent GB-832178-A (GB)
Title: Improvements in or relating to sealing devices for use with relatively rotatable members
IPC: F16J15/32
Filed: 1958-11-12
Abstract: 832,178. Stuffing-box substitutes. SVENSKA KULLAGERFABRIKEN A.B. Nov. 12, 1958 [Nov. 27, 1957], No. 36423/58. Class 122 (5). A sealing device between two relatively rotatable members 2, 6 comprises a resilient collar 11 connected to the member 6 and having a sealing lip 14 engaging the member 2, and a resilient O-ring 16 mounted on a conical portion 12 of the collar so as to increase the sealing contact of the lip on the member 2 and seal against a surface 17 which is associated with the member 2 and disposed transverse to the axis of relative rotation between the members 2, 6. As shown applied to an axle-bearing, two identical collars 11, of rubber, which may be provided with reinforcement 10, are mounted at opposite ends of an outer bearing member 6. The sealing lips 14 are formed on flange portions 13 which locate in grooves formed in the member 2 and a bearing clamping ring 7 and provide labyrinth gaps 15. A shoulder 20 is formed on the flange to retain the O-ring during assembly. In the modification shown in Fig. 2, a self-contained sealing unit is provided in which a rubber collar 25 is vulcanized to a metal outer ring 21 with its sealing lip 27 engaging an inner metal ring 22 under the action of an O-ring 28; the O-ring also seals against a radial surface of the latter ring. A flange 29 on the ring 22 engages with a shoulder 30 on the collar for maintaining the two parts together during assembly.