baber/WOPTO huggingface dataset:
Patent GB-818994-A (GB)
Title: Open mesh woven fabric and improved sanitary napkins
Inventor: HARWOOD KENNETH JOHN
IPC: A61F13/15
Filed: 1956-08-09
Abstract: 818,994. Catamenial appliances. KIMBERLY-CLARK CORPORATION. Aug. 9, 1956, No. 24427/56. Class 81 (2). [Also in Groups VIII and IX] The cover of a sanitary napkin consists of an open mesh fabric woven from low-twist yarns 1, 10, some or all of the crossing points 3a being bonded together, and the fabric being calendered to flatten the crossing points. A layer of cotton fibres 4 may be bonded to the inner or outer surface of the cover. U.S.A. Specification 2,564,689 is referred to.
Patent GB-897950-A (GB)
Title: Improvements in or relating to objectives for photographic cameras and optical projectors
IPC: G02B9/34
Filed: 1960-07-14
Abstract: 897,950. Optical objectives. LEITZ G.m.b.H. ERNST. July 14, 1960 [July 29, 1959], No. 24531/60. Class 97(1). In an optical objective comprising two negative menisci disposed between two simple collecting lenses and concave towards a diaphragm therebetween, the meniscus on the object side of the diaphragm being a cemented doublet, the difference of the radii of the front and rear surfaces of the objective is greater than or equal to the objective local length f while the sum of such radii is less than or equal to 0.10f, the difference of the radii of the outer faces of the central menisci is greater than or equal to 0.70f while the sum thereof is less than or equal to 0.10f, the difference of the radii of the inner faces of the central menisci is greater than or equal to 0.45f while the sum thereof is less than or equal to 0.10f and the focal length of the objective portion on the object side of the diaphragm is equal to or less than 1.9f whereby light rays penetrate the lenses to the rear of the diaphragm at heights between 0.5 and 0.6 of their respective heights on the front surface of the objective. Optical data are given for two examples of the objective shown.
Patent GB-623569-A (GB)
Title: Improvements in or relating to means for delivering a number of articles in succession
IPC: B65G47/00
Filed: 1946-08-19
Abstract: 623,569. Feeding articles singly from loose assemblage. SPORING, P. A., JOHNSON, C. P., and TELEGRAPH CONDENSER CO., Ltd. Aug. 19, 1946, No. 24601. [Class 117] [Also in Groups XXX and XL(b)] Articles 5, such as tubular capacitors, are delivered in succession from a hopper drum 1 to a shoot 9 by an intermittent rotary or oscillatory motion of the drum, and movement of the drum to deliver articles is automatically prevented when more than a predetermined number of articles are in the shoot. One end plate 3 of the drum is formed with apertures 6 adapted to register with a delivery hole 8 in a fixed end plate 7 and adjacent each aperture 6 is fixed an inclined vane 11 adapted to pick up a single article 12 and to raise it to fall through the hole 8 into the shoot 9. The drum 1 is prevented from rotating when the vane 11 is adjacent the hole 8 by a pawl 14 which engages projections 13 on the drum 1. The pawl 14 is periodically moved away from the drum 1 to release it by a rotating cam 28 which bears on a roller 26 to move a lever 25 fast on a shaft 24 carrying an arm 23 connected by a compression spring 21 on a spindle 18 to a lever 16 fast on the same shaft as the pawl 14. This motion is, however, prevented when the shoot 9 contains more than a predetermined number of articles by a rod 29 secured to the lever 16, sliding in a fixed block 30, and carrying an L-section feeler 31 arranged to enter a slot 32 in the shoot 9 when the lever 16 is moved; if the shoot 9 is so full that an article in it prevents the entry of feeler 31, movement of the lever 16 and the lever of the pawl 14 is prevented, the spring 21 being compressed, and the drum 1 is not released. Alternatively electrically-operated means, controlled by the feeler 31 or by a selenium cell which receives light only when its passage is not blocked by an article in the shoot 9, may prevent movement of the drum when the shoot is too full. The apparatus may be used in conjunction with that of Specification 623,568, [Group XXX].
Patent GB-679557-A (GB)
Title: A method of producing a ribbon of a plurality of separable rubber threads
IPC: B29D99/00
Filed: 1949-09-27
Abstract: 679,557. Ribbons of separable rubber threads. LASTEX YARN & LACTRON THREAD, Ltd., LAWTON, S. E., and JAMES, R. G. Aug. 21, 1950 [Sept. 27, 1949], No. 24735/49. Drawings to Specification. Class 70 A ribbon of separable rubber threads is obtained by extruding a dispersion of rubber through orifices into a liquid coagulant, drying the threads so formed to a moisture content of between 5 and 15 per cent, preferably between 7 and 9 per cent, and partially vulcanizing them, bringing the threads into contact in parallel relationship, and completing the drying and vulcanization while the contact is maintained. The dispersion may be of synthetic rubber, e.g. of neoprene.
Patent GB-462319-A (GB)
Title: Improvements in or relating to the manufacture of paraformaldehyde
IPC: C08G2/08
Filed: 1935-09-06
Abstract: Solid compositions containing paraformaldehyde are obtained by mixing solutions of formaldehyde and of a silicate to form a homogeneous composition of silica gel and formaldehyde polymer. The formaldehyde concentration in the mixed solutions should be at least 10 and preferably 20 per cent.  The mixture may be acidified and/or warmed to facilitate formation of the silica gel and polymerization of the aldehyde.  The composite gel may be dehydrated at a temperature not exceeding 70 DEG  C. to yield a dry friable product containing up to 95 per cent of aldehyde, which can be readily liberated by solution or volatilization.  It is suitable for use as a fungicide, fumigant, or bactericide.ALSO:Solid compositions containing paraformaldehyde are obtained by mixing solutions of formaldehyde and of a silicate and acidifying or warming if necessary to produce polymerization of the aldehyde and formation of silica gel.  The resulting composite gel may be dehydrated at temperatures up to 70 DEG  C. to yield a dry friable product containing up to 95 per cent of aldehyde, which can be readily liberated by solution or volatilization.  The product is useful as a fumigant, fungicide, or bactericide, e.g. in the sterilization of soil.
Patent GB-492923-A (GB)
Title: An improved process for producing a phosphorescent zinc sulphide composition
IPC: C09K11/56
Filed: 1937-09-13
Abstract: 492,923. 'Luminescent materials. EVANS, W. E. (Riedel-E. de HaÙn Akt.-Ges., J. D.) Sept. 13, 1937, No. 24904. [Class 98 (i)] A durable yellow-luminescent zinc sulphidezinc oxide composition containing about 2 per cent of zinc oxide is produced by heating to incandescence the usual materials for producing the luminescent sulphide (a) under oxidizing conditions, or (b) after adding thereto a content of zinc oxide or of compounds which produce zinc oxide when heated, e.g. zinc hydroxide or carbonate. The composition phosphoresces well with daylight excitation, but radium or mesothorium may be added as exciter. It may be used with luminous paint for clocks, crucifixes, signs, &c. Examples of the preparation of the composition are given in which the zinc sulphide is activated by copper, and barium chloride or sodium chloride is used as flux.
Patent GB-1358867-A (GB)
Title: Catalytic oxidation process
IPC: B01J21/04
Filed: 1971-04-19
Abstract: 1358867 Oxidation catalyst K Y U S H U TAIKA RENGA KK and G YAMAGUCMI 19 April 1971 [6 March 1971] 24916/71 Heading B1E [Also in Divisions Cl and F1] An oxidation catalyst composition comprises: (a) an alkali polyaluminate which is #'-alumina (R 2 O.7-8 Al 2 O 3  where R=Na or K) or #"- alumina (R 2 O.5-6 Al 2 O 3 ); or (b) a mixture of the alkali polyaluminate with other refractory material, the mixture containing not less than 0.5% wt. (calculated as K 2 O or Na 2 O) of the alkali polyaluminate; and, optionally, (c) one or more of Pd, Pt, Co, Mn, Cr, Ni, Cu, Fe, V, Ag or Sn or their compounds. In the Examples, #'-alumina is formed by calcining aluminium hydroxide and potassium carbonate in the ratio 8:1 at 1400C and #"-alumina is formed by calcining the same materials in the ratio 6:1 at 1480C.
Patent GB-775063-A (GB)
Title: Improvements in or relating to devices for collecting material in bulk
IPC: E21F13/02
Filed: 1955-08-31
Abstract: 775,063. Scraper devices for handling material. VALANTIN, A. A. M. Aug. 31, 1955 [Sept. 2, 1954], No. 25049/55. Class 78 (4). [Also in Group XXI] In a material loading and transporting device haulage cables 3, 31 are connected to a scoop 5 at a point 7 that is always above a shaft 23 by which the scoop is pivotally mounted in blocks 25 having a limited sliding movement in guideways 22 secured to the sides of a container. On the sides of said container are mounted spring-biased plungers 24. Engaging portions of the shaft 23 and the plungers are so shaped that when the scoop is advanced through the bucket by the cable 3 complementary inclined flat surfaces on the shaft and the plungers engage and the plungers are caused to rise until the shaft can pass beneath the plungers, but when the scoop is urged in the other direction by cable 3<SP>1</SP> complementary curved surfaces on the shaft and plungers engage with the result that the scoop is caused to rotate to empty any load therein into the container until the flat surfaces of the shafts are brought into engagement with the plungers to raise them and allow the scoop to push its contents into the container. Hauling in of the cable 3, cable 31 being slack, causes the scoop to take up a position in which the leading portion thereof engages the bottom of the container and advances through the container until the shaft 23 raises and passes beneath the plunger 24 of the control means and the blocks 25 abut the housing 20 of the control means. Further hauling in of the cable 3 causes the device to be advanced and the scoop to dig into the material. Hauling in of cable 3<SP>1</SP>, cable 3 being slack causes rotation of the scoop and the emptying of the material therefrom and the urging of said material pack into the container by the scoop. The cycle of operations can be repeated or further hauling in of cable 31 results in the withdrawal of the device to a discharge point where on the opening of a door at the rear of the container the material is discharged by movement of the scoop through the container.
Patent GB-483370-A (GB)
Title: Improvements relating to gyroscopic instruments
Filed: 1936-09-14
Abstract: 483,370. Bearings. HILLIER, A. (Sperry Gyroscope Co., Inc.) Sept. 14, 1936, No. 25072. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 15, 1937.] Drawings to Specification. [Class 12 (i)] [Also in Group XX] In a gyro-vertical a ball rotor is arranged to spin on an air film in a part-spherical cup to the centre of which air under pressure may be supplied. In a modification the cup is replaced by an annular ring which supports the rotor on an air film provided by a series of radial air jets on the ring.
Patent GB-602626-A (GB)
Title: Improvements in or relating to a carrier ring for circular, independent needle, knitting machines
IPC: D04B15/58
Filed: 1945-09-27
Abstract: 602,626. Knitting-machines. HEMPHILL CO. Sept. 27, 1945, No. 25079. Convention date, Oct. 4, 1944. [Class 74(ii)] The angle at which the yarn is fed to the needles of a circular machine having an adjustable stitch cam is maintained substantially constant by keeping the yarn carrier ring at substantially the same vertical distance above the knitting cam support. In multifeeder machines the yarn levers at each feeder are supported at a substantially constant vertical distance above the corresponding knitting cam support. As described in connection with a machine having a main and auxiliary knitting cam block, the yarn carrier ring 7 is mounted upon a pin 5 rotatably mounted in a vertical movable head 4 which is spring pressed upwardly, and is supported from the plates 25, 26 carrying the main and auxiliary knitting cam blocks by spring latches 27, 28. The latches 27, 28 are attached to the plates 25, 26 and engage pins 29, 30 projecting from the ring 7; manual release of the latches allows the carrier ring to be raised by the spring urged head 4. Specification 613,511 is referred to.
Patent GB-1382754-A (GB)
Title: N-sulphenylated n-methylcarbamic acid aryl esters and their use as insecticides acaricides and nematicides
IPC: C07C313/00
Filed: 1973-05-25
Abstract: 1382754 N-sulphonylated-N-methylcarbamic acid aryl esters BAYER AG 25 May 1973 [27 May 1972 15 Sept 1972] 25142/73 Heading C2C The invention comprises N-sulphenylated-N- methylcarbamic acid aryl esters of the general formula in which X is hydrogen or halogen, and R is a phenyl, naphthyl or dihydrobenzofuranyl radical which is, optionally substituted by alkyl, alkenyl, alkoxy, alkenoxy, alkylmercapto or dioxolanyl. The compounds of the invention may be prepared by reacting an N-phenylmercaptocarbamic acid fluoride of the general formula in which X is as above with a compound of the general formula ROH in which R is as above in the presence of a diluent, the compound ROH being reacted as such in the presence of an acidbinding agent or in the form of an alkali metal salt thereof. The compounds are used as insecticides, acaricides and nematicides. Reference has been directed by the Comptroller to Specification 1,216,170.
Patent GB-1165764-A (GB)
Title: Light Fixture
Inventor: COOPER GEORGE DANIEL
IPC: F21V9/04
Filed: 1967-05-31
Abstract: 1,165,764. Lamps. G. D. COOPER. 31 May, 1967, No. 25173/67. Heading F4R. A lighting fixture comprises a housing 15 in which is mounted a line source, e.g. a quartz iodine lamp, mounted between end caps 25 behind which is a dichroic reflector for reflecting all or part of the visible light and a further blackened absorber and reflector behind that to preclude reflection back of the heat rays transmitted through the first reflector. A panel 65 reflecting infra-red rays may be arranged in front of the light source. The housing may be provided with shaped reflecting surfaces forming an outwardly flared reflecting structure 47 in front of the source. The end caps 25 are carried by side plates 23 which are perforated as at 31 and spaced from the back of the housing to provide ventilation, a portion 82 of the plates 22 being cut away for the same purpose. The reflector consists of one or more plane or curved glass plates having a dichroic coating and may have a gap opposite the light source itself.
Patent GB-252184-A (GB)
Abstract: 252,184. Vuylsteke, H. May 13, 1926. Two-stroke-cycle engines.-The pump cylinder f is 30‹ in advance of the power cylinder, mixture being drawn into the pump through the passage a controlled by a piston valve. This valve closes before the pump piston is at the end of its suction stroke, air being drawn into the passage A from the crank case during the last part of this stroke. The air passes into the passage A through a port c in the piston, this port being controlled by a sleeve valve moving axially of the power cylinder; on the down stroke of the power piston the sleeve valve closes the port c. The air enters the combustion chamber in front of the mixture the volume displaced by the pump piston being sufficient to cause this air to pass out with the exhaust.
Patent GB-888960-A (GB)
Title: New complex metal compounds of triazine monoazo-dyestuffs, and their manufacture and use
IPC: C09B62/095
Filed: 1958-08-06
Abstract: The invention comprises 1,2 chromium or cobalt complexes of monoazo dyes derived from benzenic diazo components which contain, in addition to the groups participating in the complex, a single sulphonic or carboxylic acid group and also a monohalogen-1,3,5-triazine residue which, if it contains salt-forming substituents, contains only strongly ionised substituents of that kind.  The complexes are made by conventional metallisation processes from appropriate triazine dyes or by condensing appropriate metal aminoazo dyes with the required halotriazine derivative.  Sulphonic and carboxylic acid groups are indicated strongly ionised groups. Preferably the complexes are derived from dyes of formula <FORM:0888960/IV (c)/1> where R1 is a benzenic residue with OH or COOH oto -N = N-, X is a coupling component residue bound to -N = N- vicinal to an OH or amino group, n is 1, 2 or 3, preferably 1, and R is an etherfied hydroxy or mercapto group or a free or substituted amino group, the substituent of which, if aromatic, has at least one SO3H or COOH group per aromatic 6-membered ring, and in which R1 and X together contain a single SO3H group and the triazine residue is bound either to R1 or X.  The dyes may contain substituents, e.g. halogen atoms, alkyl or nitro groups.  Illustrative of specified and indicated compounds from which R may be derived are lower alcohols, phenols, isopropylamine, methoxyethylamine, cyclohexylamine, diethylamine, ethanolamine, morpholine, aminoacetic acid ethyl ester, hydrazine, N-methylaminoethane sulphonic acid, o-aminobenzoic acid and aniline 2,5-disulphonic acid.  Representative of indicated diazo components are chloro- or nitro-2-aminophenols, 2-aminophenol p sulphonic acids and their amides, 2-aminobenzoic acid and nitrochloro-, methyl- and methoxy-2-aminophenol sulphonic acids. Representative of indicated coupling components are p-cresol, resorcinol, 3-aminophenol, dihydroxynaphthalenes, aminonaphthol-monosulphonic acids, 1-aryl-5-pyrazolones and b -keto-carboxylic acid arylides.  The dyes colour wool, silk and nylon but are of particular use for polyhydroxylated materials such as cellulose, linen and cotton.  The colouring of polyhydroxylated material is preferably effected in the presence of an acid acceptor, see Specification 797,946.  Examples are provided of the preparation of the complexes and their use in colouring processes various colour shades being obtained. Specification 298,294 also is referred to.
Patent GB-659975-A (GB)
Title: Improvements in or relating to presses for the continuous extrusion of tubes
IPC: B21C23/30
Filed: 1949-09-30
Abstract: 659,975. Extruding. SIEMENS: SCHUCKERTWERKE AKT.-GES. Sept. 30, 1949, No. 25256. Convention date, Oct. 1, 1948. [Class 83 (iv)] A press for the continuous extrusion of tubes and particularly lead sheaths for electric cables having a hollow cylindrical driving worm revolving between two stationary pressure sleeves is characterized in that the walls of the driving worm possess pressure equalizing apertures. The worm 1 has an outer screw-thread 2 and an inner thread 3 and is driven by a gear 7. In the zone of maximum pressure four pressure equalizing apertures 10 are uniformly spaced around the periphery of the worm 1 and displaced relatively to one another along the longitudinal axis of the worm 1. The discharge end of the worm facing a die 17 is tapered and provided with a thread 12. The die 17 is axially adjustable by a hollow screw 19. The worm 1 is encased in outer and inner pressure sleeves 22, 23 each being provided with screwthreads 24, 25 which arrest the conveyance of the metal and prevent its rotation. The screwthreads 24, 25 are of opposite hand to those on the driving worm and single or multiple threads of square, rectangular, buttress or blade-shaped profile finished smooth and hardened may be used. Molten metal is continuously supplied to inlet 26, the stream being divided to surround the worm 1 and united in the discharge chamber 15. Electric heating coils 28, 29 and 30 heat the metal residue in the press prior to setting the worm in operation. Water cooling channels 31 and 32 are provided in the outer and inner pressure sleeves 22, 23. When extruding cable sheaths the cable 20 enters through a protective tube 21 and passes through a mandrel 16 and then through the die 17.
Patent GB-439703-A (GB)
Title: Improvements in or relating to manifolding apparatus for typewriters
IPC: B41J17/00
Filed: 1934-09-03
Abstract: 439,703. Typewriters. BROWNING, W. H., 72, Love Lane, Pinner, Middlesex. Sept. 3, 1934, No. 25341. [Class 100 (iv)] Web feeding and guiding arrangements; carbon-sheet arrangements.-A web-pack carriage adapted to be coupled to a typewriter carriage and having, as described in Specification 385,076, a base which is supported independently of the typewriter, is provided with web-guides, and a stop for arresting a carbon-pack when the webs are pulled forwards to bring a new set of forms into position. The web-pack carriage 10 shown in Figs. 1 and 2 runs on a base 10<a> and is provided with a drum 25 having an extension or apron 27 for guiding the webs 24 and an interleaved carbon-pack 21 on to the platen 14, the spindle 59 of the drum being mounted in holes 57 in brackets 51 adjustably secured to the end plates 11 of the web-pack carriage. The lower end of the apron rests on the platen-apron 14x, a number of holes 57 being provided to permit of the spindle 59 being mounted in a position corresponding to the position of the platen in different typewriters. The brackets 51 are adjusted to set the roller parallel to the platen. The sides of the apron are bent to form web-guides 31, and flanges 33 for supporting the ends of a stop-blade 22 on the backing-sheet of the carbon-pack. A plate 35 having lips 39 is secured to the apron and is spaced therefrom by washers 34, as when the webs are pulled forwards to bring a new set of forms into position, the carbon-pack is arrested by engagement of the stop-blade 22 with the upper washers 34. The web-pack carriage is coupled to the platen-carriage by means of a grooved collar 15 which is adjustable on pin secured to a rod 13 trunnioned in the end plates 11, the groove being engaged by a slotted yoke 18 secured to the platencarriage, preferably by means of clamps 19 on the tabular-stop rack 60. The coupling can be employed for different typewriters, and is self-adjusting.
Patent GB-700542-A (GB)
Title: Electrodialysis of chloride-containing liquids
IPC: A23C9/144
Filed: 1951-10-30
Abstract: 700,542. Electro-dialysis. NEDERLANDSE CENTRALE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK. Oct. 30, 1951 [Nov. 4, 1950], No. 25391/51. Class 41 Chlorine ions are removed from a chloridecontaining liquid by electro-dialytic treatment of the liquid in a cell compartment separated from the anode compartment by a diaphragm, a rinsing liquid is passed through the anode compartment and recycled in a closed circuit, and air or other medium gaseous at the working temperature is passed through the rinsing liquid to expel chlorine and thereby to prevent corrosion at the diaphragm or elsewhere in the rinsing circuit. The gas may be passed through the liquid in the anode compartment or elsewhere in the circuit ; it may be used to effect circulation of the liquid. Instead of air, nitrogen, carbon monoxide, carbon dioxide, or hydrocarbons non-reactive to the anode liquid may be employed. When a reduced quantity of air is employed residual chlorine may be removed by addition of a substance yielding sulphite ions as described in Specification 679,338 ; alternatively these reagents may be added to the liquid undergoing dialysis. The pH of the dialysate should be maintained below 7. An example is described for the desalting of brackish water or sea-water using a three-compartment cell ; all the compartments being fed with the same water. The anode rinsing circuit includes a partly filled vessel whereat separation of gas formed at the anode takes place. The rinsing liquid is sprayed into this vessel at the top and air is introduced at the bottom. In a second example concentrated whey is electro-dialyzed in the midcompartment of a three compartment cell. 0.2 normal sodium sulphate and 0.05 normal sulphuric acid are supplied to the anode rinsing liquid. Air is passed through the anode compartment. Sodium dioxide or a sodium sulphite solution may be supplied to the rinsing liquid after de-aeration. Diaphragms of cellophane collodion or parchment may be employed; the distance from diaphragm to anode may be as low as 1 mm. Specification 431,885 also is referred to.