baber/WOPTO huggingface dataset:
Patent GB-223551-A (GB)
Title: Improvements in and relating to steam and hot water boilers
IPC: F22B33/08
Filed: 1924-10-03
Abstract: 223,551. Huygen, L. B., and Huygen, F. C. Oct. 15, 1923, [Convention date]. Internally-fired boilers.-A boiler has two separate shells placed end to end, one shell 4 containing a furnace flue 5 and the other shell 9 containing smoke-tubes 14, 15, 16. The front tube plate is recessed to form a smokebox 21 and the rear tube-plate 13 is recessed to form a smoke-box 19. The furnace gases pass through the smoketubes 14 to the rear smoke-box and return through smoke-tubes 15 to the front smoke-box, from which they pass through the smoke-tubes 16 to an outlet flue 26. When a damper 25 in the smoke-box 19 is opened, the gases pass from the smoke-box directly to the outlet flue. The front smoke-box has a removable front plate 23. The smoke-tubes 15, 16 are of relatively large diameter. The boiler shells are secured together by bolts 17. One shell may serve as a water heater while steam is generated in the other shell.
Patent GB-303138-A (GB)
Title: Improvements in or relating to the manufacture of silica and like adsorbent gels
IPC: B01J20/06
Filed: 1928-08-14
Abstract: 303,138. Silica Gel Corporation, (Assignees of Connolly, G. C., and Miller, E. B.). Dec. 30, 1927, [Convention date]. Silica. - In preparing gels of silica, oxides of aluminium, titanium, tungsten &c. the hydrogel is washed with water heated to a temperature of 105-175‹ F. whereby after drying a gel is obtained the apparent density of which is less effected by high temperature reactivation. The apparent density of the gel is less the higher the temperature of the washing water made use of. Specifications 136,543; 212,065, [Class 1 (iii), Oxides &c., Metallic], and 216,504 are referred to.
Patent GB-894665-A (GB)
Title: Submersible motor construction
Inventor: LUNG KENNETH RAYMOND
IPC: H02K5/132
Filed: 1960-07-05
Abstract: 894,665. Motor casings. TAIT MANUFACTURING CO. July 5, 1960, No. 23485/60. Class 35. In a liquid - filled submersible pump having a motor at its lower end and a casing including a cylindrical end part 22, the peripheral rim 41 of a flexible cup - shaped diaphragm 20, which allows for expansion of the liquid filling, on heating, and the equalizing of internal and external pressures, is held in position by end cap 15, being a press-fit at 44 on the casing end part and provided with breathing hole 21.
Patent GB-1045564-A (GB)
Title: Mass coloration of polyesters
Inventor: BOWMAN FRANCIS
IPC: C09B1/58
Filed: 1964-06-08
Abstract: A process for the mass coloration of synthetic linear polyesters comprises using as colouring matter one or more dyestuffs of the formula <FORM:1045564/C3/1> wherein D represents a polycyclic dyestuff radical which contains at least three condensed ring systems and which is free from sulphonic acid groups; Y represents -NH- or -S-; n represents a positive integer not exceeding 3; m represents a positive integer not exceeding 4; and the benzene ring A may be further substituted by chlorine or bromine atoms.  D may represent an anthraquinone dye-stuff radical. The dyestuff may be a dyestuff of the formula <FORM:1045564/C3/2> wherein T1, T2 and T3 each independently represent a hydrogen atom or a group of the formula <FORM:1045564/C3/3> Two of the T1, T2 and T3 groups may represent hydrogen atoms and the third may be the o-carboxy anilino group. The dyestuff may be mixed with the polyester before the latter is melt spun or with a monomer or prepolymer of the polyester before polymerization and melt-spinning. The linear polyester may be of terephthalic acid and a C2- 10 polymethylene glycol or 1:4-dimethylol cyclohexane.  It is preferred that in the formula of the dyestuff n represents 1 and that the -COOH group is attached to the benzene ring A in ortho position to the bridging atom or group represented by Y. The radical D preferably contains from three to eight condensed ring systems which can be carbocyclic or heterocyclic rings or a combination of both types. It is preferred that D represents a 11:91 - anthrapyridone, 11:91-anthrapyrimidine, isothiazoloanthrone, pyrazoloanthrone, 31:41-phthaloylacridone, phthaloylperinone, and, above all, an anthraquinone dyestuff radical.  The dyestuff radical D is attached to the atom or group represented by Y through the carbon atom of an aryl ring, which is preferably a benzene ring present in D.
Patent GB-1532752-A (GB)
Title: Apparatus for picture processing
IPC: H04N19/60
Filed: 1977-06-03
Abstract: 1532752 Data transmission: facsimile &c. systems PHILIPS' GLOEILAMPENFABRIEKEN NV 3 June 1977 [10 June 1976] 23677/77 Heading H4P In a facsimile or X-ray system where it is desired to reproduce from storage or transmit pictorial information particularly at a number of "grey" levels, Hadamard transformers are used to reduce the number of redundant elements and hence provide compression. Each picture is divided into a number of square areas 2<SP>N</SP>Î2<SP>N</SP> each element within which being coded according to the number of grey levels required, e.g. 32 levels = 5 bits, which elements are placed into an accessible store having at least 2<SP>N</SP>Î2<SP>N</SP> locations. Information in each block of 4 adjacent locations is multiplied by data which represents a second order Hadamard transform. Certain data is processed P times where P = N - I whereas other data is processed P - 1 times. For each value of P there may be 1st, 2nd and 3rd partial sequences: the first processed data indicating brightness according to a first seam direction, the second indicating a brightness according to a second scan direction and the third the remainder. It is stated that redundancy is reduced by compressing picture energy to a restricted area of each matrix. Apparatus for performing the various operations is described in the Specification. Reconstruction of the original image is controlled by the same sequence of signals as in the transforming device described in connection with Figure 3 (not shown).
Patent GB-1270466-A (GB)
Title: Rotary fluid flowmeters
Inventor: JABLONSKI JAN
IPC: G01F1/82
Filed: 1969-05-09
Abstract: 1,270,466. Flowmeters. ELLIOTT BROS. (LONDON) Ltd. May 8, 1970 [May 9, 1969; July 9, 1969], Nos.23752/69 and 34643/69. Heading G1N. [Also in Division F1] A rotary mass-flowmeter, particularly for measuring the mass flow of fuel per unit of time in an aircraft, comprises in a cylindrical housing 10, Fig. 1, having inlet and outlet portions 12, 11, a fixed annular member 20 having blades 16, a turbine rotor 22 having vanes 18 secured to a shaft 30 which freely rotates in bearings 15, 32, a stationary flow straightener means which includes frusto-conical nose portion 19 and a number of radially extending vanes 33, an impeller rotated by the turbine and an end drum having a boss 71 secured to the shaft 30. The impeller comprises a central cylindrical portion 40 bearingly supported by the shaft 30 and formed with radial spokes 43 which support an inner cylindrical part 44, an inner ring of vanes, an outer cylindrical part 46 and an outer ring of vanes 47 and carries a pair of diametrically disposed magnets 58 which co-operate with a pick-off 59. The impeller is coupled to the turbine shaft 30 by a spiral spring 50 so that under steady flow conditions the impeller will lag behind but rotate at the same speed as the turbine. The drum includes an end ring 53 having apertures (not shown) so that fuel flowing from the impeller passes to outlet paths 72, 73 and an annular part 54 which shrouds the outer ring of impeller vanes 47 and mounts a pair of diametrically disposed magnets 55 which cooperate with a pick-off 56. The magnets 55, 58 and co-operating pick-offs 56, 59 provide electric signals spaced an amount indicative of the lag of the impeller relative to the turbine and provide information from which it is possible to measure the mass-flow rate of fuel and actual fuel consumption. Although not essential, it is desirable to keep the speed of the turbine substantially constant and to achieve this, slots 60 open into the spaces between the flow straightener vanes 33. Each slot is closed by a leaf-spring 62 secured at one end, and for added refinement a further leaf-spring 63 may be added. At low flow-rates the springs prevent fuel which passes through a central aperture 14 in the turbine flowing into the straighening means. At a predetermined minimum flow-rate the springs 62 open the slots 60 and at a second predetermined flowrate the springs 62 lift the springs 63 to increase the amount of opening of the slots. In a modification, instead of the springs 62, 63, the fixed annular member 20 is provided with an inwardly directed annular flange which co-operates with a spring-loaded valve plate. In another modification, to compensate for temperature changes in the fuel, a boss 105, Fig.6, at the outlet end 11 of the meter is formed with passages 106 which co-operate with radial arms 112, Fig.7, of a plate 110 which is linked by a link 114 to a bimetallic element 113. In this modification, the impeller and end drum are of modified construction.
Patent GB-745801-A (GB)
Title: Improvements relating to phonograph record players for reproducing a stack of records of different diameters
Inventor: JNR JAMES EDWARD VISTAIN
IPC: G11B17/16
Filed: 1954-08-16
Abstract: 745,801. Automatic gramophones. ADMIRAL CORPORATION. Aug. 16, 1954, No. 23775/54. Class 40(2) An automatic gramophone for records of three different diameters has feeler means for enabling the pick-up to be set down automatically at the start of mixed 10 inch and 12 inch diameter records, or stacks of 7 inch, 10 inch and 12 inch records. The machine is of the kind in which records are released one by one from a stack supported on a centre post. When an automatic cycle is performed, a control member 47, Fig. 4 shows the member 47 at a point half way through the cycle. At this stage a member 41 has been moved counterclockwise about a point.42 whereby the pick-up has been lifted by a rod 38 and has been swung outwardly by means of a spring- loaded pin 56 on member 41 coming into contact with an arm 53 mounted on the shaft 29, Fig. 5, carrying the pick-up arm. While the rod 38 is in the lifted position a compression spring 64 holds the arm 53 in frictional engagement with an arm 58 which is also engaged by pin 56 and has a pin 68 at its end protruding into an opening 87 of a lever 73 pivoted at 72. As the cycle continues the arms 53 and 58 move clockwise and the lever 73 rotates clockwise about 72 (as viewed in Fig. 7) under gravitational influence. A feeler member 83 on lever 73 is thereby raised and should it meet no resistance, such as when 7 inch records are being used, pin 68 moves along the full length of surface 91 in the aperture 87 of lever 73, until brought to a stop in the notch 107, a position corresponding to the starting position for a 7 inch record. At this part of the cycle the rod 38 re-enters recess 51 in member 41 to lower the pick-up on to the record. When 12 inch records are played the falling record during a record change trips a lever 112 and releases a spring-loaded slide 122 so that a tongue 131 thereon enters an aperture 132 in lever 73 and prevents its rotation by gravitation when pin 68 moves out of notch 89. The pin 68 will thus come to rest in notch 109 which corresponds to the starting position for a' 12 inch record. At the completion of the automatic cycle the-pin 56 encounters a cam 133 on slide 122 and relatches the latter with lever 122. Should mixed 10 inch and 12 inch records be in the stack and a 10 inch record falls to the turntable, the lever 73 will rotate, when pin 68 leaves notch 89, until the feeler 83 comes into contact with the under surface of the lowermost record on the turntable. When this happens the pin 68 enters the opening 106 and comes to rest in the notch 108, and this corresponds to the starting position for a 10 inch record.
Patent GB-1432998-A (GB)
Title: Signal encoder
IPC: H03M1/00
Filed: 1973-05-18
Abstract: 1432998 P.C.M. encoders NIPPON ELECTRIC CO Ltd 18 May 1973 [18 May 1972] 23790/73 Heading H3H A P.C.M. encoder for producing a serial n-bit word in response to a sampled analog signal comprises a first sequential feedback type encoder to produce encoding for the highest n 1 - bits of the word, the decoded output of which is subtracted from the contents of the sample store of the first encoder and passed to a second sample store providing input to a second, similar encoder for the lowest n 2 -bits of the word, the outputs of the two encoders being combined to produce the n-bit output and the bits (n 3  in number) which are encoded in both encoders being passed to a coincidence logic circuit, whereby if these bits are not coincident indicating drift of one encoder with respect to the other, an output signal is produced which is instrumental in deriving a compensating signal which is applied to the signal obtained by the subtraction. As shown, an anlog input 1 is applied to a first sample-and-hold circuit 5 and the output therefrom is taken to both a comparator 6 and a subtraotor 8. The comparator is coupled in a feedback arrangement with a decoder 7 which provides its other input and which is of the form comprising a plurality of channels each containing a flip-flop and a diode switch adapted to apply the output from a constant current source to the appropriate point of a ladder network which supplies the analog voltage. The output of the comparator which is the highest n 1 -bits of the n-bit word is also taken to a combining logic 16. The output of subtractor 8 is sampled-and-held at 9 and the sampled output is encoded at 10, 11 in apparatus similar to that described above to provide the lowest n 2 -bits of the n-bit word, which bits are also taken to the combining logic 16. In each of the n 1 -, n 2 -bit words there are n 3 -bits in common, and these are taken to a logic circuit 13 where the coincidence is tested. If the n 3 -bits of both encoders are not identical, indicating a differential drift situation, the circuit 12 is activated whereby a gate is opened to pass a constant D.C. to an integrator, the output of which is applied as a compensating signal to the subtractor. A range detecting circuit 14 may also enable the gate of the circuit 12 for a predetermined time after the circuits are first actuated.
Patent GB-695344-A (GB)
Title: Continuous method for cooling and shaping thermoplastics
Inventor: STOBER KENNETH ELMER
IPC: B29C48/08
Filed: 1951-10-15
Abstract: <PICT:0695344/IV (a)/1> <PICT:0695344/IV (a)/2> <PICT:0695344/IV (a)/3> <PICT:0695344/IV (a)/4> Heat plastified thermoplastic resins, e.g. polystyrene or polymethyl methacrylate, are shaped and cooled by feeding the resin 30 to the surface of a circumferentially-grooved, rotating drum 2 and repeatedly pressing it against the drum and, at the same time, cooling the surface of the resin to its heat-distortion temperature by means of a cooling fluid passed through the drum. The repeated pressing may be performed by plain or grooved rollers 3 which are resiliently mounted and radially adjustable with respect to the drum 3.  The rollers 3 may be positively driven and may be cooled by cooling fluid.  Sheets having cross-sections such as those shown in Figs. 7, 8, 9 are produced. The plastified resin may be drawn in ribbon form from a chamber or may be extruded by the machine 31 which is provided with an adjustable gate 32.  Non-thermoplastic material such as cloth may be fed into contact with the resin as it is applied to the drum.
Patent GB-163239-A (GB)
Title: Improvements in or relating to power-driven ploughs
IPC: A01B61/04
Filed: 1920-08-18
Abstract: 163,239. Stumpf, P. Aug. 18, 1920. Ploughs.-In a power-driven plough in which the shares are forced into and lifted out of the ground by means of a compressed-air cylinder, the arrangement is such that the shares are continuously kept up to their work by the compressedair pressure and, on meeting an obstruction, move rearwardly and upwardly only by overcoming that pressure. In the plough shown, the piston-rod K of the compressed-air cylinder C is connected directly to the plough beam P, which is hung from the main frame by two nearly vertical links H<1>, H<2>. In a modification, the piston-rod K is horizontal and is connected to a bell-crank lever which replaces the link H<2>.
Patent GB-703202-A (GB)
Title: Processes for the preparation of polychloro alicyclic compounds
Inventor: LIDOV REX EVERETT
IPC: C07C17/10
Filed: 1951-10-16
Abstract: Octachlorocyclopentene is prepared by chlorinating tetrachlorocyclopentane or mixtures of C5H6Cl4 and C5H5Cl5 in the liquid phase, by maintaining the reaction mixture constantly saturated with chlorine at a temperature within 20 DEG  C. of that at which it refluxes at atmospheric pressure.  Preferably the temperature is maintained at 170-275 DEG  C. Phosphorus pentachloride or arsenic oxide may be present as a catalyst and the reaction may be carried out under increased chlorine pressure.  The octachlorocyclopentene may be converted to hexachlorocyclopentadiene by pyrolysis at 275 DEG  C.-500 DEG  C. preferably by passing the octachlorocyclopentene through a heated zone at 375 DEG  C.-500 DEG C., fractionating the pyrolysed product and returning any unchanged octachlorocyclopentene to the pyrolysis zone.  Examples describe the chlorination of tetrachlorocyclopentane according to the invention to give octachlorocyclopentene which is pyrolysed to hexachlorocyclopentadiene.  Tetrachlorocyclopentane is prepared by chlorinating a monocyclic, five carbon atom ring, hydrocarbon or a chlorinated derivative thereof containing less than four chlorine atoms in the molecule, in a saturated solution of chlorine at -50 DEG C. to +80 DEG  C. Preferably the cyclic five carbon atom hydrocarbon, such as cyclopentadiene, is added to a cold saturated solution of chlorine in a solvent which may suitably be the chlorinated cyclopentane itself.
Patent GB-1056638-A (GB)
Title: Electro-optical systems
IPC: G02F1/03
Filed: 1965-06-08
Abstract: 1,056,638. Electro-optic logic systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 8, 1965 [June 29, 1964], No.24140/65. Heading G1A. The electro-optical logic system, shown in Fig. 1, contains two electro-optic active elements 15 and 16 each of which when a voltage is applied to them retard by 90 degrees the wave polarization in one direction with respect to that in the other, in the case shown x' retarded with respect to y', and which are combined with a further quarter wave retarding plate 26 and a plane polarizer 13 and analyzer 27. For various combinations of the values of the parameters of the system, all representing inputs to the system, viz. the directions of the polarizing axes of the polarizer, analyzer and electro-optic active elements and the absence or presence of a signal voltage applied to the elements, three levels of intensity of radiation can be received by the photo-multiplier 30 viz. zero of the axis of polarization of the radiation prior to the analyzer is at 90 degrees to the axis of the analyzer, I/2 of the radiation prior to the analyzer is circularly polarized and I of the axis is the same as the analyzer. By using two photomultipliers one with a threshold between zero and I/2 and the other between I/2 and I, or a single photo-multiplier the threshold of which can be switched, two logic output signals can be derived for whatever level of intensity is created by the inputs to the system. Increasing the number of active elements will increase the number of logical functions the system can perform. Compounds suitable for forming the active crystals are ammonium dehydrogen phosphate, potassium dideuterium phosphate and cuprous chloride.
Patent GB-838217-A (GB)
Title: Improvements in and relating to apparatus for checking the alignment of a light projector
Inventor: JEHU VICTOR JAMES
IPC: G01M11/06
Filed: 1955-08-22
Abstract: 838,217. Optical apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 10, 1956 [Aug. 22, 1955], No. 24145/55. Class 97(1) Apparatus for checking the direction of the beam from a light projector such as a motor car headlamp comprises a screen having at one end a projection which, when suitably placed in the beam, casts a shadow on the screen, the latter having markings against which the shadow indicates the direction to be checked. Fig. 2 shows the apparatus arranged to check the longitudinal alignment of a headlamp. The screen 5 is supported on a pillar 1 so as to be parallel to the common plane supporting the pillar on the car, the position of the shadow cast and the vertical edges of the projection 6 being indicated by markings 7. The projection 6 may carry a device 8 for sighting on a target 10 detachably secured to the other headlamp by a rubber sucker 9 to ensure that the screen 5 is spaced the same distance from each headlamp in testing. Alternatively two screens connected by a horizontal bar may be used for checking the two lamps. For checking the direction in a vertical plane the screen 5 is supported vertically before the headlamp. The projection 6 may be replaced by an opaque member having a slit or by a grid.
Patent GB-317371-A (GB)
Title: Improvements in drawn covers for milk cans and other containers
IPC: B65D51/08
Filed: 1929-08-07
Abstract: 317,371. Krupp Akt.-Ges., F. Aug. 14, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Stoppers, plug; materials for stoppers.-In a drawn cover for milk cans and other containers having an annular bead a<2> large enough to be easily cleaned and adapted to abut on the edge of the aperture of the can, the bead a<2> merges into the shell portion a<1> of the cover by a surface a<4> which is at least horizontal and may be inclined downwardly. The bead on the cover extends beyond the bead b' on the container to protect the latter from rain &c. In making the cover, the bead is rolled out from a smooth cylindrical shell of stainless steel. Specification 197,883, [Class 66, Hollow-ware], is referred to.