baber/WOPTO huggingface dataset:
Patent GB-1299127-A (GB)
Title: Method and apparatus for the production of heterogeneous filaments
IPC: D01D5/36
Filed: 1970-05-14
Abstract: 1299127 Heterogeneous filaments JAPAN EXLAN CO Ltd 14 May 1970 [14 May 1969] 23519/70 Heading B5B Heterogeneous filaments consisting of at least two different fibre-forming components and in which the components are mutually dispersed through the cross-section of the filament and along its axial direction, are made by causing at least two different fibre-forming liquid components to flow separately through alternately and equally spaced inlets into a dispersion or dissemination region containing a dispersion aid (such as a bed of a particulate solid) for dispersing or disseminating one fibre-forming liquid component in the other and extruding the thusformed dispersion or dissemination of fibreforming components through a spinneret plate having uniformly spaced extrusion orifices, the dispersion region having dimensional characteristics which satisfy the equation in which P is the distance in millimetres between the centres of adjacent inlets of the spinning liquids, D is the value in mm. of an effective dimension of the particles of the dispersion aid (e.g. the diameter of the particles when the dispersion aid consists of spherical particles), T is the depth of the bed (i.e. its thickness in mm. along the filament spinning direction of the dispersion or dissemination region, and H is the distance between the centres of adjacent spinning orifices of the spinneret plate. The fibre-forming material may be an acrylic polymer or copolymer. The two fibre forming liquids used in the examples are both acrylonitrile copolymers dissolved in an aqueous solution containing 50% by weight of sodium thiocyanate, one copolymer being dyeable with an acidic dyestuff and the other dyeable with a basic dyestuff. As shown in Figs. 2 and 3, a spinning head 10 which may be used for carrying out the process of the invention comprises a spinning liquids supply member 15 fitted in a sleeve 8 and provided with a feed chamber divided into two parts 6 and 7 by a partition wall 13. Two different spinning liquids flow from the chamber 6 and 7, respectively, through the ducts 51 and 5 into a dispersion or dissemination chamber defined by a circular wall 3, the lower face of the supply member 15 and the upper or inlet face of a spinneret 1 having extrusion orifices 14. The dispersion chamber is filled with a bed 2 of particulate material such as stainless steel spheres 2 mm. in diameter. The spinneret 1, and annular member 3 are held tightly in place by a retaining ring 9 threadably engaged with the sleeve 8.
Patent GB-744020-A (GB)
Title: Anhydrotetracycline and acid addition salts thereof
Filed: 1953-08-26
Abstract: Anhydrotetracycline is prepared by treating chlortetracycline or anhydrochlortetracycline (see Specification 744,019), or acid addition salts thereof, with hydriodic acid.  Aqueous solutions containing up to 57 per cent hydriodic acid may be used, 48 per cent acid being preferred.  The reaction temperature is up to 100 DEG  C. At the higher temperatures red phosphorus is preferably added to remove free iodine liberated during the reaction. Anhydrotetracycline may be crystallized from ethyl alcohol.  It melts at 224 DEG  to 226 DEG  C. and [a ]D25 DEG  = +24 DEG  (in 2-ethoxyethanol).  Acid addition salts specified are those with hydrochloric, hydriodic, hydrobromic and acetic acids.
Patent GB-1021451-A (GB)
Title: Improvements in or relating to printing mechanisms
Inventor: BROWN STANLEY CAMERON
IPC: B41L5/14
Filed: 1961-07-12
Abstract: 1,021,451. Date and time printing apparatus; autographic registers. LAMSON PARAGON Ltd., and PARKFIELD (FREUND & TAYLOR) Ltd. Sept. 28, 1962 [July 12, 1961], No. 23550/61. Headings B6A and B6D. Time printing apparatus for use in an autographic register comprises a plurality of time printing discs suitably geared together, a ratchet wheel 21 fast with the minute disc, a reciprocating bar 18 for advancing the ratchet wheel step-by-step, pawl means 25, 28 normally engaging the ratchet wheel to prevent forward and reverse movement of the ratchet wheel, and means to permit the pawl means to become inoperative during each reciprocatory movement of the bar 18 whereby the ratchet wheel is advanced. A claw 20 is pivoted to the tear 18 and spring-urged towards the ratchet wheel 21. The bar 18 is moved to the left, as seen in Fig. 3, against the action of a spring, by a snail cam 16. The latter is loosely mounted on the continuously rotating output shaft of an electric motor and engages a roller 17 on the bar. A block 15 fast with the output shaft, transmits drive to the snail cam through a pin and slot connection. On continued rotation of the nail cam, the bar 18 is returned to the right by said spring to advance the ratchet wheel. A lever 24 pivotally mounted on the pawl 25 is moved by a nose 23 on the bar 18 into contact with a stop 27 on said pawl 25. This action pivots the pawl 25 away from the ratchet wheel for a limited period to allow advancement of the minute disc. The pawl 28 prevents reverse movement of the minute disc. The free end of the bar 18 is flanged to facilitate normal stepping of the minute disc. Alternatively, the spring 29 connecting the pawls 25, 28 is replaced by a link and the lever 24 is replaced by a flange at the free end of the pawl 25, figure 6 (not shown). A drum is mounted on the output shaft of the motor and has a slot in its surface, which is aligned with the flange when the snail cam is in the position shown in Fig. 3. Hence, on return movement of the bar 18, the flange enters the slot to permit pivotal movement of the pawl 25 to free the ratchet wheel. At other times, rotation of the pawl 25 to free the ratchet wheel is prevented by the flange which engages the surface of the drum. The date wheel is advanced manually by pulling on a hooked bar 33, Fig. 5, engaging a ratchet wheel fast with the date wheel. A pivoted pawl 38 connected to the bar 33 by a link 37, limits the movement of the ratchet wheel. Autographic registers -The autographic register includes feed discs 1, a feed roller 2 and a time and date printing mechanism 11, Fig. 1 (not shown). The mechanism 11 is pivoted to imprint the paper web on rotation of the feed discs 1, by a post 7 on said feed discs engaging a nose 8 on the mechanism 11.
Patent GB-820378-A (GB)
Title: Improvements in and jacquards for lace machines
IPC: D04C5/00
Filed: 1956-07-31
Abstract: 820,378. Lace-machine jacquards. GOODLEY, C. E. June 7, 1957 [July 31, 1956], No. 23583/56. Class 74 (1). The dropper pins 13 of a lace machine end jacquard are surrounded by helical springs 17 located between fixed and slidable abutments 18, 19 on the pins, the abutments 18 resting on the pin plate 10 of the sley when the pins 13 are in the inoperative position. When a dropper has been lifted by the cylinder 11 sufficiently far for the abutment 19 to bear against the underside of a stationary abutment plate 20, further rise of the dropper compresses the spring, whereby the dropper is constrained to follow accurately the rise of the cylinder; and when the cylinder falls, the spring assists the return of the dropper. The abutment plate 20 is provided with slots 20a through which the dropper pins pass. These slots are open at one end, so that the plate may be inserted into and withdrawn from slots 21a in the sley. The abutments 18, 19 are sufficiently small to allow the droppers to be removed vertically through square holes 9a in the upper sley plate 9, when the plate 20 has been withdrawn.
Patent GB-721157-A (GB)
Title: Improvements in and relating to gas producer power plant
IPC: F02C3/28
Filed: 1951-10-10
Abstract: 721,157. Motor power plant; gas turbine plant. INDIAN INSTITUTE OF SCIENCE, DIRECTOR OF. Oct. 10, 1951 [Oct. 10, 1950], No. 23598/51. Class 110 (3). Relates to a power plant in which a heat engine designed to operate on high grade non- gaseous fuels is driven by producer gas derived from low grade fuels and also to a producer gas power plant comprising a gas producer operating on solid or heavy liquid fuels, a mixing chamber wherein the producer gas is mixed with air in any desired proportions and a heat engine where, in a suitably designed combustion chamber, the mixture of gas and air is burnt to give useful work. In such a power plant the gas generating unit comprises a turbine 3 which is operated by supercharged gas from the gas producer 2 and drives a compressor 1 for supercharging the said gas producer and supplying additional air at a lower pressure to the heat engine 6, the gas being supplied to the heat engine after its expansion in the turbine and the turbine-compressor unit assisting or receiving assistance from the heat engine. The units 3, 6 are mechanically, pneumatically or hydraulically coupled together by a member 7 and a cyclone dust separator 8 is disposed between the members 2, 3. The exhaust gases from the heat engine are fed to a turbine 9 which may, if desired, drive a separate compressor. In a modification, Fig. 1 (not shown), the turbine 9 is dispensed with and in a further modification, Fig. 3 (not shown), the exhaust gases from the turbine 9 are used to preheat the air supplied to the gas producer. The heat engine may constitute a two-stroke internal combustion engine wherein part of the air compressed in the compressor is used as scavenging air, an engine of the Otto or Diesel type or any combination thereof with a rotary heat engine.
Patent GB-290590-A (GB)
Title: Improvements in or relating to paper or the like sheet folding machines
IPC: B65H45/14
Filed: 1927-09-09
Abstract: 290,590. Canadian - American Machinery Co., Ltd., (Assignees of Hitchcock, R.). May 16, 1927, [Convention. date]. Folding paper.-In a paper-folding machine employing sets of buckling folders operating at right-angles to one another, means are provided for cutting the sheet longitudinally as they leave each set of folders so that the number of products obtained from a single printed sheet may be increased. The sheets after being fed from a table through a set of folders 17 pass over a guide plate to rubberfaced feed-rollers 25, the shafts 26. 27 of which carry one or more parts of cutting-discs 29 adjustably and removably mounted thereon. The cut sheets pass to an inclined-roller feed-table 30 which, in the usual manner, forwards the sheets at right-angles to their former path into another set of folders 40, 42. A similar guiding, feeding, and cutting arrangement 46, 47, 48, 29 follows the folders 40 - - 42 and the final products drop on to a slow-moving delivery band 49 driven by reduction gearing 52 - - 54 from the shaft 47. Any folder may be rendered inoperative by means of a pivoted deflector in the ordinary way, and additional units of the machine may follow the folders 40 - - 42 instead of the delivery belt 49. The cutting-discs 29 may be adjusted as described in Specification 239,810, [Class 31 (i), Cutting and severing machines &c.].
Patent GB-194657-A (GB)
Title: Improvements in packing or the like cases
IPC: B65D5/32
Filed: 1922-09-02
Abstract: 194,657. Bliss, H. R. March 7, 1922, [Convention date]. Boxes made from special blanks. - A fibre board &c. packing case comprises a main blank forming the bottom a, two side walls b, c, and cover flaps d, e, and two separate end blanks f, g, each having shallow flanges m which are permanently secured to the bottom and side walls so that the end walls are flush with the edges of the main blank. The flanges m are preferably fastened to the bottom and side walls by metal stitches clinched on the inside of the case. The cover flaps d, e, are overlapped and secured to the flanges m by metal stitching, also clinched on the inside, such clinching being permitted by adjusting the sequence in which the stitching is performed.
Patent GB-517987-A (GB)
Title: Regulating transformer with contact-ring-current-collector
IPC: H01F29/06
Filed: 1938-08-12
Abstract: 517,987. Regulating transformers. LEISCHNER, G. Aug. 12, 1938, Nos. 23849 and 23850. Convention dates, Aug. 14, 1937, and Sept. 25, 1937. [Class 38 (ii)] In a regulating transformer the current collecting is effected by means of a ring-like collector which embraces the winding and is caused to move along it helically by means of eccentric spindles, the contacts of the collector being connected together and to the common lead by connections located outside the magnetic circuit. t. In Figs. 5 and 6 a transformer having core 1, yokes 2, primary winding 3, which may be split up into sections, and secondary winding 4, has a current collector 5 mounted on spindles 6 with eccentric trunnions 7 in bearings 8. The secondary may be of metal strip separated by projecting insulation or it may have a semi circular or other projecting profile to engage a corresponding groove in the collector. On rotating the spindles the point of contact of the collector with the secondary will travel round so that the number of turns may be varied. Alternatively the spindles may be threaded, thus giving the collector the necessary longitudinal transmission without the necessity of projecting insulation and profile for the secondary. Other ' embodiments give additional yokes so that the steps of the variation may be smaller. Applications to three-phase transformers are shown.
Patent GB-263230-A (GB)
Title: Improvements in or relating to gearing for conveying rotary motion
IPC: F16H7/06
Filed: 1925-09-24
Abstract: 263,230. Rushton, J. L. Sept. 24, 1925. Spindle-driving apparatus; spindle apparatus.- In spinning and like machines for artificial silk the spindles 36 are driven by spiral toothed wheels 44 on shafts 49 driven through disconnectible coupling-teeth 48, 51 by sprocket or other wheels 19, 20 driven from wheels 15, 16 connected by clutches 13, 14 to a driving-shaft 12. The wheels 15, 16, 19, 20 are carried in a three-part casing 21 bolted to a bracket 35 on the machine frame 10, and the parts 49, 44, &c. are carried in separate casings 37 carrying trunnions 38 pivoting on fixed brackets 39, the lower ends of the casings bearing against adjustable screws 41, so that the teeth 48, 51 can be brought into alignment. During assembly, coupling-rods 52 are screwed into blocks 46 secured to the wheels 19, 20, their heads 53 bearing against the ends of the shafts 49, so as to move the casings 37 with all their contents to position for drive. Oil is introduced to the casing 21 through a hinged cover 32. In a modified construction, a single wheel on the shaft 12 drives a single wheel aligned with the wheels 44, which it drives by Oldham couplings. Systems such as described may be placed at several positions along the shaft 12, and two shafts 12 may be used to drive systems on both sides of the machine.
Patent GB-727784-A (GB)
Title: Continuously formed electrodes for electric furnaces
Inventor: HELLING WERNER
IPC: C25C3/12
Filed: 1953-08-28
Abstract: An adhesive composition comprises a mixture of 40 parts of a mixture of 90 per cent. of coal tar pitch with 10 per cent. of anthracene oil with 60 parts of granulated petrol coke having a diameter of 3 m.m. or less.  The composition is used in forming a continuous electrode from preburnt carbon blocks for an electrolytic furnace, a layer of composition 5-15 m.m. thick being spread on the lower surface of a carbon block which is added to the electrode as its lower end is burnt away, the heat of the electrode in use setting the composition (see Group XI).
Patent GB-742097-A (GB)
Title: Improvements in or relating to the polymerization of formaldehydes
IPC: C08G2/00
Filed: 1953-08-28
Abstract: High molecular weight polymers of formaldehyde are made by polymerizing monomeric formaldehyde until not more than 20 per cent by weight has been polymerized, separating the polymer, e.g. by filtration, and subsequently polymerizing the remaining monomer.  The polymerization may be effected batchwise or continuously, e.g. through a tubular heat exchanger, in the presence of an organic liquid which is a non-solvent for the polymer and in the presence of a polymerization catalyst which may be added portionwise.  Organic liquids mentioned are aliphatic ethers, e.g. dimethyl ether, diethyl ether, aliphatic hydrocarbons, cycloaliphatic hydrocarbons, e.g. cyclohexane, aromatic hydrocarbons such as benzene, toluene, xylene and chlorinated hydrocarbons such as methylene chloride.  The formaldehyde may be obtained by the pyrolysis and distillation of alpha-polyoxymethylene under reduced pressure at a temperature below 0 DEG  C.  Catalysts mentioned are methyl, ethyl, butyl, octyl, decyl, dodecyl, octadecyl, dibutyl, ethyloctyl, tributyl, trihexyl, octadecyldimethyl, dicyclohexyl, N-methylcyclohexyl, and decahydronaphthyl amines, aniline, toluidine, triphenyl, triethyl, tributyl, tritolyl and trixylylphosphines, trinaphthylarsine, triethylstibine and methyldioctylarsine.  The polymers may be made into films.
Patent GB-1500875-A (GB)
Title: Variable speed gearing
IPC: F16H3/44
Filed: 1976-06-10
Abstract: 1500875 Variable speed gear L G M B R HEINTZ 10 June 1976 [23 June 1975] 24025/76 Heading F2D Variable ratio gearing driving an output shaft 6 at speed ratios varying from zero to one-toone, comprises a cranked flexible or jointed shaft 1, receiving a primary drive and rotatable in a rotatable planet carrier 2, receiving at 7 a secondary mechanical, hydraulic or electric variable drive or constraint, and carrying a spur or bevel planet 4 secured to the primary shaft 1 and meshing an internally toothed ring gear 5 secured to the output shaft 6, the ratio of the planet 4 to the ring gear 5 being so determined by the number of cranks or inflexions in the primary shaft 1 that, irrespective of drive torque, the planet carrier 2 is in equilibrium under the forces F1 and F2 exerted on it respectively by the cranked primary shaft 1 and tooth reaction at the wheels 4, 5, so that the magnitude of the control torque required on the planet carrier 2 to produce a given range of speed ratios is very small in comparison with input primary torque C1. Thus, with the dimensions shown in Fig. 1, F1.r1=C1=F2.r2 and a gear ratio of 0À5, making r1=r2 would result in F1 being equal to F2, which forces would thereby cancel, leaving the planet carrier 2 in equilibrium. With output speed w2 initially zero and input speed w1, the speed w of the unconstrained planet carrier 2 is -w1 (backwards), and output speed w2 can be taken gradually from zero to a fixed reduction ratio (0À5) by progressively braking the carrier 2 to standstill, after which output speed can be further increased to input equality by driving the carrier 2 progressively forwards up to input speed for one-to-one drive. The relative values of r1 and r2 may be altered slightly, in one direction to compensate for speed changes due to sudden increase in load, or in the other direction to relieve the power source of overload due to such increase. In Fig. 2b (not shown) the cranked shaft has four inflexions, necessitating a gear ratio of 0À33 for carrier equilibrium, whilst in Fig. 3b (not shown) there are several cranked shafts in a common carrier and connected at their input ends by intermeshed planets (8, 9, 10). In Fig. 5 (not shown) there are two gears in series, each with a single-inflexion shaft in a common planet carrier carrying bevel planets, whilst in a single gear arrangement, Fig. 7 (not shown) there is a rigid inner shaft with a single inflexion provided by a constant-velocity-ratio universal joint. In Fig. 6 (not shown) the secondary drive to the pulley 7, Fig. 1, of the planet carrier 2, is provided by two variable-speed electric motors (M1, M2) driving through a bevel differential gear D, either motor being capable of doubling the speed of the other to produce zero output.
Patent GB-1091356-A (GB)
Title: Improvements in and relating to button back pieces
IPC: A44B1/12
Filed: 1966-05-31
Abstract: 1,091,356. Buttons. C. & C. BUTTON & TRIMMING CO. Inc. May 31, 1966 [June 2, 1965], No. 24149/66. Heading A3H. [Also in Division B4] A back piece for a button comprises a shell 10 with inner flange 18 and outer flange 14. An anchoring piece 22 of fabric projects through a central opening in the shell and is retained by teeth 28 projecting from a retaining disc 26. An ornamental head which may have a fabric cover is clamped to the back piece. The parts of the back piece are clamped together by upper and lower discs which are mounted on the jaws of a device such as pliers.
Patent GB-439482-A (GB)
Title: Improvements in and relating to the manufacture of heating elements for mercury boilers
IPC: F22B3/02
Filed: 1935-08-29
Abstract: 439,482. Making mercury boilers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Biggs, L. R. ; 1825, Nott Street, Schenectady, New York, U.S.A.) Aug. 29, 1935, No. 24164. Convention date, Aug. 30, 1934. [Class 83 (ii)] [See also Groups XXVI and XII] Heating - elements for mercury boilers are manufactured from steel or like blocks or foundation members which are rolled to produce projections 25, 26 and bosses 20. Rounded recesses are formed between alternate adjacent projections 25, 26 which are bent to form cylindrical channels. The outer edges of the walls are welded together at 32. The attachment of refractory material by the bosses may be further facilitated by ribs 33.
Patent GB-1437093-A (GB)
Title: Detergent compositions
IPC: C11D1/22
Filed: 1973-05-21
Abstract: 1437093 Detergent compositions NITTO CHEMICAL INDUSTRY CO Ltd and NIPPON UNITOL CO Ltd 21 May 1973 [22 May 1972] 24192/73 Heading C5D Detergent compositions comprise a mixture consisting of (A) from 20% to 95% by weight of an alkylbenzene sulphonate having an alkyl group of 8 to 16 carbon atoms, and (B) from 80% to 5% by weight of a secondary alcohol ethoxysulphate obtained by sulphating an adduct of from 1 to 8 moles of ethylene oxide and 1 mole of a secondary alcohol containing 10 to 16 carbon atoms. The preferred ratio of (A) to (B) is 40%-85% to 60%-15% and the preferred component (A) is sodium dodecylbenzene sulphate. A preferred composition is one in which a total of 15% to 30% of components (A) and (B) is admixed with water. The compositions are used for manual dish washing. A typical composition contains 35 parts by weight of each of components (A) and (B), 10 parts by weight of alcohol ethoxylate and 20 parts by weight of alkylolamide, dissolved in water.
Patent GB-486710-A (GB)
Title: Suspender to support children's breechettes
IPC: A41F3/00
Filed: 1937-09-06
Abstract: 486,710. Child's braces. BARKER, C. W. Sept. 6, 1937, No. 24257. [Class 141] Child's braces consist of a pair of elastic or other webs A, B, crossing front and back so as to leave ends with a number of buttonholes C and secured at the crossing points by stitching, button and buttonhole, a stud passing through buttonholes in both, or, as shown, by passing the end of one strap through a buttonhole in the other.