baber/WOPTO huggingface dataset:
Patent GB-825819-A (GB)
Title: Improvements in rubber compounding
IPC: C08J3/215
Filed: 1958-04-15
Abstract: In making a rubber-carbon black composition by coagulation of a mixture of a dispersion of carbon black and a natural or synthetic rubber latex, the procedure involving feeding the carbon black and water in predetermined proportions to a mixing chamber, subjecting the mixture to violent agitation in the chamber and forming there a stream of uniform carbon black slurry, mixing a stream of the rubber latex in predetermined proportion with the stream of slurry under violent agitation, and coagulating the mixture, the carbon black employed is "virgin" carbon black, i.e. a carbon black in flocculent form as produced, having been submitted to no densing operation other than mild agitation to effect partial degasifying.  The "virgin" carbon black may be of bulk density 3-6 lb/cubic foot.  An example is concerned with producing carbon black from a highly aromatic liquid petroleum residue, mixing it with 11 parts of water, mixing the resulting slurry with a dispersion of a low-temperature polymer of butadiene and styrene in the proportion 50 parts of carbon black to 100 parts of rubber, coagulating the slurry-rubber dispersion, washing and drying the resulting crumb, compounding the crumb with zinc oxide, stearic acid, asphaltic flux plasticizer, sulphur, diphenylamine-acetone reaction product, benzothiazyl disulphide and diphenylguanidine, and shaping and vulcanizing the compound. Specifications 705,344 and 765,486, [Group V], are referred to.
Patent GB-527820-A (GB)
Title: Improvements in a chronograph mechanism
IPC: G04F7/04
Filed: 1939-04-21
Abstract: 527,820. Stop - watches. EBAUCHES SOC. ANON. April 21, 1939, No. 12006. Convention date, May 25, 1938. [Class 139] In chronograph mechanism having a minutes counter advanced intermittently, the actuating means for the minutes hand shaft 3<SP>1</SP> consists of a lever 14, 10, 16 pivoted at 11 which is subject to the action of a spring 13 and of a cam 15 on the shaft of the (centre) seconds hand and at the other end carries a leaf spring 17 which protrudes beyond the end 16a of the arm 16; as the end 14 snaps off the high part of the cam 15, spring 17 advances the wheel 3 and the end 16a limits the advance to one tooth. When zeroizing occurs in the known manner a projection on the hammer lever which zeroizes the usual heart-shaped cams, descends on to pin 18 of lever 10 and rocks the lever clear of parts 15 and 3.
Patent GB-729654-A (GB)
Title: Dispenser for pressure sensitive adhesive tape
IPC: B65H35/00
Filed: 1952-05-12
Abstract: 729,654. Tape dispensers. KRUEGER, T. H. May 12, 1952 [May 11, 1951], No. 12012/52. Class 18. To .enable pressure sensitive adhesive tape to be readily delivered from a tape dispenser, the feeding mechanism comprises a series of discs or endless bands 174 which have a second series of discs 54 or bands 178 so positioned as to intersect the path of the tape and strip it from the feeding discs or bands. The point of intersection is such that the angle between the direction of movement of each series at the point is at least 120 degrees. In the case of discs this is achieved by having the axis of rotation of the stripping discs within the circumference of' the feeding discs. In the case of endless bands, the bands of each series alternate with each other and each band passes round small and large pulleys so that the paths of the bands cross. A combined arrangement of discs and endless belts may be provided. The discs are conveniently formed with gear teeth to enable them to be driven, the peeling discs and, also in the case of belts, the peeling belts are driven at a speed in excess of the feeding discs or belts. The dispenser is provided with severing means 128 adjacent the point of intersection of the paths of the discs. The drive for the discs is by a hand operated lever which has a scale associated with it to enable predetermined lengths of tape to be dispensed.
Patent GB-1537304-A (GB)
Title: Microform reader
IPC: G03B21/11
Filed: 1976-03-25
Abstract: 1537304 Optical projectors BELL & HOWELL CO 25 March 1976 [31 March 1975] 12032/76 Heading G2J In the microfilm reader shown in Fig. 1, a mirror 23 which reflects light on to the microimage is mounted for adjustment about perpendicular axes, by means of accentric cams rotatable from the front of the projector by control shafts 27, (61). The mounting for the projection lens 34 includes a pair of rings with sloped contacting surfaces. The rings are relatively rotatable about a common axis so that the direction of the optical axis of the lens is adjustable.
Patent GB-635482-A (GB)
Title: Improvements in or relating to electric multichannel pulse modulator systems
IPC: H01J31/04
Filed: 1946-04-18
Abstract: 635,482. Multiplex pulse signalling. STANDARD TELEPHONES & CABLES, Ltd. April 18, 1946, No. 12053. Convention date, April 30. 1945. [Class 40 (v)] In a multi-channel pulse communication system, a plurality of cathode-ray tube modulators, each producing several interleaved channel pulse trains, are controlled so as to time differently their output pulses, which in turn are interleaved. As shown, each of the modulators 13, 14, 15 produces four interleaved channel pulse trains, as described in Specification 603,188, and their outputs are passed through cathode follower stages 48, 49, 50 respectively to a common transmission channel carrying the twelve channels. The modulator scanning potentials are derived from phasesplitters such as 17 fed from a common basewave source 16, phase shifters 52, 53 being interposed in the case of modulators 14, 15, respectively, so that their output pulses are correctly timed in the combined pulse train from all the modulators. Specifications 635,474 and 635,509 also are referred to.
Patent GB-833783-A (GB)
Title: Improvements in or relating to stopcocks
Inventor: DEVEREUX GEORGE CHARLES
IPC: F16K7/06
Filed: 1957-04-12
Abstract: 833,783. Valves. ELLIOTT Ltd., H. J. April 9, 1958 [April 12, 1957], No. 12063/57. Class 135. A stopcock, primarily for use in burettes and pipettes, comprises a tube 2 of flexible, resilient, material having a smooth internal surface, an obturating member such as a ball 3 jammed in the tube and making contact with an annular area of the inner wall thereof so that fluid cannot normally flow past said member, and a screw device for squeezing the tube across a diameter which passes through said area, the tube and said member being such that when the tube is squeezed as aforesaid, channels will be opened between the tube and said member on another diameter and will permit the passage of fluid past said member. As shown, the tube is housed in a body 1 carrying a hand screw 4, 5 for squeezing the tube and having holes 9 on a diameter at right angles to the screw to allow the tube to deform away from the ball 3, the opposite ends of the tube being connected to parts 7, 8 of a burette.
Patent GB-294162-A (GB)
Title: Coin controlled camera and photographic cabinet
IPC: G03B17/53
Filed: 1928-02-28
Abstract: 294,162. Photomovette, Inc., (Assignees of Semel, S. I.). July 19, 1927, [Convention date]. Divided on 294,160. Drawings to Specification. Coin-freed apparatus. - A coin-controlled camera of the kind which is started into operation by a coin and will automatically make a series of exposures of a person and stop when a definite number of exposures have been made, is provided with coin-controlled motor driving means for the shutter and for a sensitized strip, and with means whereby the shutter only commences to operate when, its driving motor has attained full speed. A gapped gear wheel is used for driving the shutter. The apparatus described is that described in Specifications 294,160, 294,163 and 294,164. In these Specifications other features of the apparatus are claimed.
Patent GB-738735-A (GB)
Title: Improvements in and relating to the stabilisation of fatty oils
Inventor: COWIE CHARLES THOMSON YOUNG
IPC: C11B5/00
Filed: 1951-05-25
Abstract: Stabilized oil compositions comprise a fatty oil, e.g. palm kernel oil, palm oil and tallow, containing up to 1 per cent, preferably 0.01 to 0.4 per cent, of 4-methyl catechol or 4-ethyl catechol.  An example describes compositions of boiled linseed oil and 4-methyl catechol.
Patent GB-1003060-A (GB)
Title: Method of reducing corrosion of high temperature heat transfer surfaces
IPC: F28G9/00
Filed: 1963-03-28
Abstract: 1003060 Preventing corrosion COMBUSTION ENGINEERING Inc 28 March 1963 [27 April 1962] 12295/63 Headings C5G G10B and G11 Corrosion of the high temperature heat-transfer surfaces due to the action of the combustion products of solid fuel burned in a furnace is reduced or prevented by applying magnesium oxide to the surfaces. A slurry of magnesium oxide, or of a material which decomposes to give magnesium oxide is applied at intervals to the surfaces of the reheater and super-heater tubes in a solid fuel fired steam generator through the sootblowers. Specifications 566108 and 578935 are referred to.
Patent GB-910513-A (GB)
Title: Oils process for the manufacture of high viscosity organopolysiloxane
IPC: C08G77/08
Filed: 1959-04-10
Abstract: Stabilized high viscosity siloxane oils are made by preparing a liquid mixture of (1) a hydroxyl-terminated siloxane obtained by hydrolysis of a silane of the formula R2SiX2, wherein each R is a monovalent hydrocarbon or halogenated hydrocarbon radical and each X is a halogen atom or alkoxy radical, any other silanes, if present, being in amount such that the R/Si ratio is within the range of 2,0 to 2,01, (2) a siloxane of the average formula R3SiO(R2SiO)aSiR3, wherein R has the above meaning and a has a value such that the siloxane has a viscosity at 25 DEG C. of from 1 to 10,000 cs., and (3) 0,0001 to 1,0% by weight of (1)+(2) of a phosphorus-nitrogen compound, bringing the mixture into intimate contact with a stream of air at room temperature until the viscosity is substantially stabilized and repeating the last step at a temperature of 100 DEG to 200 DEG C. Siloxanes (1) and (2) may contain alkyl, alkenyl, aryl or halohydrocarbon radicals.  Compounds (3) used are phospho-nitrile halides and certain organonitrogen derivatives of H3PO3 and H3PO4. Stabilization is effected by bubbling or blowing air through the mixture.  In a typical Example (1), a trimethylsiloxy end-blocked dimethylsiloxane and phosphorous nitrile chloride were added to the hydrolysate of (CH3)2SiCl2, and air was blown therethrough at room temperature for 24 hours and then at 150 DEG C. for 24 hours, the mixture slowly increasing to a stable viscosity during each period of air blowing to give, as an end product, a clear oil of 70,000 cs. viscosity at 25 DEG C.
Patent GB-696001-A (GB)
Title: Improvements in or relating to oscillating mills
IPC: B02C17/14
Filed: 1951-05-25
Abstract: 696,001. Ball mills. NAAMLOOZE VENNOOTSCHAP TEMA. May 25, 1951 [May 25, 1950], No. 12335/51. Class 59 In a process of vibratable grinding, the direction of oscillation of the mill is: periodically reversed. In the case of an assymmetrical mill, the periods are of unequal duration. The ball mill, Fig. 1, is supported on springs 4 and driven by means of a shaft 2 in a protecting tube 3. The mill may have a heart-shaped upper surface as shown in Fig. 4. During the interval while the direction of oscillation is reversed, the speed of the mill passes through its critical speed of oscillation causing oscillation of large amplitude and violent impacts which loosen the material being ground.
Patent GB-1219509-A (GB)
Title: A camera capable of automatic switching between built-in exposure controls for daylight and flash photographing
IPC: G03B7/16
Filed: 1968-03-14
Abstract: 1,219,509. Photographic exposure control. MINOLTA CAMERA K.K. March 14, 1968 [March 17, 1967] No.12381/68. Heading G2A. The position of the needle 4a of a photo-electric exposure meter is sensed by a scanning member 11, and the lens aperture 2 adjusted accordingly. If the daylight illumination is insufficient (i.e. flash is required), the scanning member does not engage the needle, but a lever 10 whose position is set by the rangefinder, and the aperture again adjusted accordingly. In the arrangement shown, depression of the shutter release rod 14 causes a lever 13 to pivot clockwise about a pin 13a. This frees the scanning member 11 to pivot, under the action of a spring 11e anti-clockwise about a shaft 11d, until its stepped end 11b engages the pointer 4a of the exposure meter, 3, 4. A lever 12, also pivoted on shaft 11d has a lug 12a overlying member 11, so that as the latter turns anti-clockwise, lever 12 pivots in the same sense. At the end of lever 12 is a pin 12b, which engages in a slot 2b of the diaphragm 2, so adjusting it to the appropriate aperture, as set by the position of needle 4a. If the illumination is too low, the stepped end 11b of member 11 is not intercepted at all by needle 4a, but continues to move until the aperture is fully open. A pin 11c on member 11 then engages a further lever 10 and pivots it clockwise about a shaft 10a. The lower end 10c of lever 10 engages a lug 12c of lever 12 and causes it to pivot in the reverse direction (i.e. clockwise), so closing down the lens aperture once more. The amount of such closing is determined by the distance lever 10 can pivot, which in turn is determined by the position of a vertically sliding plate 5, of which a pin 5a intercepts the path of the end 10b of lever 10. The movement of plate 5 is controlled by engagement with a pin 6a on a distance-setting knob 6, so that the aperture is now set (for flash exposure) according to the distance of the subject. A lever 9 also links plate 5 directly with the lens holder 1 for focusing purposes. In a mechanically simpler modification Fig. 2 (not shown), the member 11 itself actuates directly the diaphragm blades.
Patent GB-909308-A (GB)
Title: Improvements in or relating to high-vacuum getter and ion pumps
IPC: H01J41/16
Filed: 1959-04-13
Abstract: 909,308. Dicharge apparatus. CSF. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 13, 1959 [April 16, 1958], No. 12400/59. Class 39 (1). A high vacuum getter and ion pump comprises an envelope and an electrode system within the envelope comprising a cathode and an anode, one of the cathode and anode electrodes being formed of or coated with or supporting a reserve supply of gettering metal, such as titanium so as to act also as a gettering electrode, supply means for the cathode and anode electrodes to produce by the discharge current therebetween a detectable ionization of residual gas molecules within the envelope, the gettering electrode being arranged to be heated additionally to the heating effect, if any, of the minimum ionizing discharge current or of the heating current required to produce said discharge current to evaporate said gettering metal. The getter is of Ti, A or K. In Fig. 1, the anode 5 is a Ti helix and carries a heating current. The tube has a water jacket 7. In Fig. 3, filament 3 is a planar spiral and sectionalised anode 5 supports a Ti getter. A control grid may be provided. There may be an axial magnetic field, Fig. 4 (not shown). In another form, Fig. 5 (not shown), two Ti wall coatings act as cold cathodes and getters. The anode is an annulus containing a heater and with a getter coating. An axial magnetic field is provided. In Fig. 7 there is a control grid 11 and a helix anode 5 with a Ti getter coating. 13 is a helical cooling tube. In another form, Fig. 10 (not shown), there is an electron gun with a helix anode having a Ti getter coating and a screen mounted on its far end. The last few turns of the helix are of larger cross-section to carry more Ti. In Fig. 11, the Ti getter is carried by the hot or cold cathodes 25, 25<SP>1</SP> and anode 5 is a loop. In Fig. 13, the hot or cold cathode filaments 30 carry Ti getter helices and pass through holes in discs 27. The filaments are supported by springs 31. Anode 5 is a filament. Coil 28 produces an axial magnetic field.
Patent GB-579252-A (GB)
Title: Improvements relating to ball and roller bearings
IPC: F16C37/00
Filed: 1943-07-30
Abstract: 579,252. Bearings. POWER JETS, Ltd., and WALKER, D. N. July 30, 1943, No. 12441. [Class 12 (i)] A ball or roller cage has axial bores for cooling air which may convey lubricant. A roller cage comprises members 4. 5 with bores 4A, 5A leading to axial bores 3A in the rollers 3, the bores 4A, 5A being inclined to form scoop and ejector effects to promote air flow. The rollers may also have lubricant passages 3B leading from the bores 3A. Further air passages 4B, 5B may be provided in the cage between the rollers. In the case of a ball bearing, the passages 4B, 5B alone are provided.
Patent GB-417956-A (GB)
Title: Improved bobbin holder for looms
IPC: D03D45/20
Filed: 1933-04-29
Abstract: 417,956. Boxes for bobbins. COPITHORNE, T., 3, Dawson Street, Dublin. April 29, 1933, No. 12551. [Class 18.] A hopper for storing weft bobbins has a trough-like base 6 which is spaced from the sloping extension 3<a> of the front wall 3 to provide an opening 8 whereby a bobbin can be extracted by the weaver. Openings are provided in the front wall to facilitate viewing of the contents and adjustment of improperly positioned bobbins. The front wall may be formed of transparent material. Gravitation of the bobbins to the outlet 8 may be controlled by a vertically adjustable wall portion 3<b> provided in place of the extension 3<a>. The hopper is attached to the loom by means of hooks 11.
Patent GB-703440-A (GB)
Title: Fertiliser
IPC: C05B7/00
Filed: 1951-05-29
Abstract: A fertilizer consists essentially of ammonium and magnesium single or double sulphates in which the ratio of magnesium to nitrogen is 1 : 2-3.  Phosphates may be present, the magnesium : phosphorus ratio preferably being 1 : 0-8.  Potassium and calcium salts may also be present.  Examples relate to a mixture of ammonium sulphate and magnesium sulphate the Mg : N ratio being 1 : 2.62 a mixture of ammonium schonite, ammonium sulphate and superphosphate, the ratio Mg : N : P being 1 : 2.5 : 0.8. The fertilizers may be obtained by simple mixing or by crystallization of hot saturated solutions. Specifications 230,796 and 309,175, [both in Class III], are referred to.
Patent GB-645052-A (GB)
Title: Improvements in or relating to method of and machines for making laminated paper andboard sheets
IPC: D21F11/08
Filed: 1945-05-18
Abstract: 645,052. Cylinder paper-making machines. BELOIT IRON WORKS. May 18, 1945, No. 12591. Convention date, May 31, 1941. [Class 96] The webs from two forming cylinders 20, 21 are couched at 34, 35 and united at 52 with their " wire " sides together, a space 54 between the upper parts of the two cylinders being bridged at the top by couch rolls 32, 33 and at the bottom by a strip 55 with seals 56, 57, and by end seals. The space 54 is exhausted by a suction conduit 58 which also exhausts the interior of the forming cylinders through the parts of their walls which bound the space 54; white water being drained off at 22, 23. Shower pipes 59 in the enclosure 54 may spray water against the cylinder moulds. In modifications, (i) the suction conduit 58 is substituted by two suction pipes, one communicating with the interior of each cylinder mould 20, 21; (ii) the partition wall 13a between the two cylinders is omitted, sealing strips being spring-pressed against the bottoms of the cylinders, and the end-seals being eccentric so that grooves are not worn; (iii) the two cylinders, in a single vat, are supplied with pulp along their outer sides, adjustable slices co-acting with the upper parts of the cylinders, and suction couch rolls having internal water-collecting troughs; (iv) suction couch rolls within the vat are spaced apart from each other, the pick-up felts 36, 37 carrying the webs upwardly to a suction press, spaces between the couch rolls and suction press rolls being blocked off by walls supporting sealing strips contacting the rolls; (v) corrugated disc agitators near the forming parts of the cylinders break up fibre-bundles and promote interfelting of the fibres; (vi) pulp is fed to the forming parts of the cylinders in three streams, two in opposite directions along each cylinder, and a central stream radial thereto.
Patent GB-331305-A (GB)
Title: Improvements in or relating to photographic type-composing machines and to a photographic method of producing matrices therefor
IPC: B41B17/06
Filed: 1929-04-23
Abstract: 331,305. Uher, E., and Uhertype Akt.- Ges. April 23, 1929. Type composing.-In a machine wherein the matrices are deflected on to the composing surface to select the individual matrices for projection on to the composing surface, the deflecting means and the matrix support have a relative rotation about an axis along the path of the light from the deflector to the composing surface. In the form shown, a glass cylinder 4 carries three rings of matrices 5<1>, 5<2>, 5<3>, illuminated by an annular lamp 5, or by a rotating lamp, or individually by separate lamps- Light from the selected matrix passes by way of the tube 7, mirror 8, and telescopic lens 2 to the sensitive surface 3, which is fed intermittently in known manner. The drum 4 may be axially adjusted by gear 36 and a spring-loaded pin 37 to bring a selected ring of matrices before the tube 7. The casing 9 for the mirror 8 carries a disc 15, and is caused to rotate upon the bearings 16, 17 by the frictional engagement of the disc 15 with the end 14 of a sleeve 13. An electric motor 10 drives the friction disc 12, which is slidably keyed to the sleeve 13. Means for arresting the rotation of the casing 9 at the selected matrix comprises a brush 22 mounted in the disc 15 and adapted to wipe a series of fixed contacts 23 embedded in insulation 42. The circuit of each contact 23 has an interruption 27 controlled by a key 26. When the selected key 26 has been depressed and the brush 22 has reached the corresponding contact 23, a circuit is closed through the battery 24, lead 25, electromagnet 20, electromagnets 32 and metal of the machine to the brush 22. The electromagnet 20 first raises the sleeve 13, disconnecting the drive of the disc 15, and immediately thereafter draws down the shaft 19 against the tension of the leaf spring 21, so that the disc 15 is arrested by the breaking disc 18. The electromagnets 32 then effect a fine adjustment by lowering the sleeve 30, causing the claw coupling 28, 29 to engage. The matrices may be formed by placing representations of the characters on the surface 3, and photographing them back on to the matrix support via the lens 2 and mirror 8. Specification 328,435 is referred to.