baber/WOPTO huggingface dataset:
Patent GB-1452665-A (GB)
Title: Open-end spinning apparatus
IPC: D01H11/00
Filed: 1974-06-07
Abstract: 1452665 Open-end spinning frames SCHUBERT & SALZER MASCHINENFABRIK AG 7 June 1974 [9 June 1973] 25446/74 Heading DID In an open-end spinning apparatus with a plurality of adjacent spinning devices a common drive casing 2 and a ventilating duct 17 are arranged superjacently with a common imperforate bulkhead 18 between them so@as to prevent the entrance of air currents into the drive casing. The ventilation duct serves to extract air from the spinning rotors 1 through ports 15. Fins 19, 19' are provided on the drive casing side of bulkhead 18 to increase heat transfer and hence cooling. A further lower ventilation duct may be provided to remove waste material separated at the spinning stations.
Patent GB-500441-A (GB)
Title: Improvements relating to chip baskets
IPC: A45C3/02
Filed: 1937-09-20
Abstract: 500,441. Baskets. MARY, R. Sept. 20, 1937, No. 25453. [Classes 18 and 133] A chip basket for fruit &c. is provided with a bottom of cardboard or similar material which may be waxed or waterproofed and is formed with a flange to which the sides of the basket are attached by wire stitching or similar moans. The flange may be disposed entirely entirely within the sides c, as shown at b, in Fig. 2, or may lie externally as at b<1> in Fig. 3. The bottom may have embossed reinforcing ribs e and may be supported by transverse wooden or cardboard members f, Fig. 2.
Patent GB-1271619-A (GB)
Title: Improvements in or relating to coke ovens
IPC: C10B29/02
Filed: 1970-05-27
Abstract: 1,271,619. Coke oven door jambs. KOPPERS CO., Inc. 27 May, 1970 [28 May, 1969], No. 25588/70. Heading F4B. [Also in Division C5] In a coke oven battery each door jamb 12 comprises a vertical course of end jamb bricks 17, 19 adjoining intermediate brick courses 21a, 21b, 21c, each end jamb brick being co-extensive with a horizontal course A, Fig. 1, and partially co-extensive with horizontal courses B and C immediately above and below. Each end jamb brick is joined to a brick 21a and 21c by tongue and groove joints 45, 47. Behind the end jamb bricks 17 and 19 are corner bricks 33, 37 joined by a stretcher brick 35 through tongue and groove joints 41, 43. Bricks 21a, 21b and 21c have tongue and groove joints 27, 29 in both horizontal and vertical planes. A bearing-plate 23 is pressed against these latter bricks by a buckstay 25. Bricks 17, 19 may be made of fused silica, the remainder being silica bricks.
Patent GB-1027741-A (GB)
Title: Silver complex diffusion transfer process
IPC: G03C8/24
Filed: 1962-07-04
Abstract: 1,027,741. Photographic diffusion transfer  process. GEVAERT PHOTO-PRODUCTEN N.V. July 4, 1962 [July 6, 1961], No. 25630/62. Heading G2C: A photographic silver complex diffusion transfer process is effected in the presence of a black or blue-black toning agent of formula where x is S or O, and each of R, to R 6  is H or a substituted or unsubstituted alkyl or aryl radical. The toning agent may be in the image receiving layer, the light sensitive layer or the developer all of which may also incorporate other conventional ingredients many of which are mentioned with references to prior Specifications and published literature.
Patent GB-283648-A (GB)
Title: Improvements in or connected with coin freed gas meters
IPC: G07F15/00
Filed: 1926-10-15
Abstract: 283,648. Hoyle, D. G., and Glover & Co., Ltd., T, Oct. 15, 1926. Gas, supplying by meter; valves, special arrangements of.-In coin-freed gas meter mechanism, the valve spindle C, Fig. 3, that is connected to the coin-freed mechanism passes through a stuffing-box A permanently fixed to the valve-box B. It carries a curved arm E that, at the end of the movement of the coin-freed mechanism, closes the inlet valve L. The valve L is carried by a rod K pivoted between posts J. Figs. 3 and 6, in a disc I, the portion of the rod K above the posts being acted on by a spring M to hold the valve open. The spring M is secured to the disc I by a screw P which engages a recess in the edge of an opening F in the valvebox for the purpose of positioning the valve. The opening F is surrounded by an internally threaded wall G and, after the disc I is placed in position with two washers T, a cap U is screwed on the wall to form a gas-tight joint. By unscrewing the cap U the valve may be readily removed for repairs and adjustment.
Patent GB-715444-A (GB)
Title: Space protection by electro-magnetic waves
IPC: G08B13/184
Filed: 1952-10-14
Abstract: 715,444. Photo-electric ; machine guards. SICK, E. Oct. 14, 1952 [Oct. 19, 1951; Sept. 23, 1952], No. 25764/52. Class 40 (3). [Also in Group XXXVIII] In a device for protecting a space, e.g. the front of a machine against undesired entry of bodies (e.g. an operator's hand) the space to be protected is traversed by a beam of light or of ultra-short radio waves which is finally received by a photo-electric cell or radio receiver the path including a reflector which returns the beam along its path of incidence. As shown (Fig. 1) light from a source 1 is formed by a lens 3 on to an oscillating mirror 24 which traverses the beam of light along a trough shaped mirror 11. The beam is reflected from the trough on to a strip 16 consisting of a number of small reflectors which reflect the beam back along its path of incidence to the strip, on to the trough and again to the oscillating mirror which directs the beam on to an annular mirror surrounding lens 3 and from there to a photo-electric cell 28. Since the beam is interrupted intermittently, e.g. by an operator's arm the control circuit may include a quick-release slow-acting relay which will not close if the beam is anywhere interrupted. In an alternative arrangement (Fig. 3) light from source 54 is focused by a lens 57 through a translucent mirror 58 on to the edge between two faces of a rotating pentagonal mirror prism 60. This edge coincides with the focal line of a parabolic mirror 65 the total light reflected on to this mirror by the drum as it rotates being substantially constant. Light is reflected from the mirror through a cylindrical lens 68 which concentrates the beams on to reflex strips 71. The strips reflect the light back via the mirror and the rotating prism on to the translucent mirror 58 which directs it on to a photo-electric cell 72. In a further embodiment (not shown) light is directed on to the joining edge of a pair of mirrors rotating about an axis perpendicular to this edge so as to direct the light on to concave mirror of the type shown in Fig. 3.
Patent GB-842596-A (GB)
Title: Space heating gas burner for direct overhead installation
Inventor: BREWER FREDERICK JOHN
IPC: F23C99/00
Filed: 1955-09-09
Abstract: 842,596. Gas burners. PARKINSON COWAN Ltd. Sept. 10, 1956 [Sept. 9, 1955], No. 25875/55. Class 75(1). [Also in Group XII] In a gas burner assembly for overhead heating comprising more than two gas burners of the type consisting of a housing closed at the bottom by a perforated plaque or plaques and having its own gas and air inlets the gas-air mixture passing through the plaque and being burnt on the underside thereof, the burners are so arranged that the products of combustion from each burner can reach a flue outlet without passing across the face of another burner. In one form, each of the burners 10, Fig. 3, is tilted at an angle of 10 degrees forming spaces 17 between them through which the products of combustion pass into the hood and thence to the flue 18. In another form, Fig. 6 (not shown), four burners are arranged symmetrically around and tilted towards a central flue, the whole assembly being covered by a cross-shaped hood. In a further form the burners 10, Fig. 4, are horizontal and arranged in pairs with a flue outlet 17 between each pair. The burners may alternatively be tilted towards their adjacent flue outlets. Specification 700,559 is referred to.
Patent GB-200467-A (GB)
Title: Improvements relating to boiler plants provided with airpreheaters
IPC: F23L15/02
Filed: 1922-09-25
Abstract: 200,467. Aktiebolaget Ljungstr÷ms Angturbin. July 5, 1922, [Convention date]. Regenerators. - A rotary regenerator for steamboilers is arranged behind the chimney and above the boiler or boilers so as to economise space and reduce the length of the air and waste gas conduits. Fig. 2 shows the regenerator 6 arranged above and between two boilers and behind the chimney 3. Damper - controlled conduits 9, 8 lead the gases from the uptake 4 through the regenerators to the chimney. The air to be heated passes through the regenerator to a passage 15 between the boilers and thence to a distributing-pipe 16 and to the furnaces. By closing the dampers in the conduits 9, 8 and opening a damper 13 the waste gases may be led direct to the chimney. In a modification, the regenerator is arranged in a lower position between the boilers so that the conduits 8, 9 are further shortened or eliminated entirely. In the modification shown in Fig. 6, the axis of the regenerator 6 is arranged horizontally and the air and waste gases are led through the regenerator as indicated by the arrows.
Patent GB-994747-A (GB)
Title: 19-oxygenated steroids and process for their manufacture
IPC: C07J9/00
Filed: 1961-07-17
Abstract: The invention comprises D 5-3-hydroxy- or -acyloxy-steroids of the androstane, pregnane or spirostane series containing in the 10-position a hydroxymethyl, acyloxymethyl, formyl, carboxy or carbalkoxy group; and a process for the preparation of any steroid containing a D 5-double bond and the aforementioned 3- and 10-substituents wherein a 5a -halogeno-6b , 19-steroid, a 19,6b -lactone of a 5a  - halogeno - 6b  - hydroxy - steroid 19 - acid or a 19,6b -cyclohemiacetal of a 10-formyl-5a -halogeno - 6b  - hydroxy - steroid is treated with a reducing agent and, if desired, any hydroxy or 10-carboxy compound obtained is esterified or any hydroxy or 10-formyl compound obtained is oxidized and/or any ester obtained is hydrolysed.  The starting material may belong to any of the steroid series mentioned above or to the cholane, cholestane, stigmastane or cardanolide series, and may contain free, ketalized or enolized oxo groups, esterified or etherified hydroxyl groups, alkyl groups of at most 7 carbon atoms or halogen atoms in one or more positions of the steroid nucleus or 17-side chain.  They may also contain double bonds and oxido groups.  When alkali or alkaline earth metals in liquid ammonia are used as reducing agents D 5-19-hydroxy-steroids are formed, and this may be accompanied by the reduction of other oxido groups or of oxo groups unless they have previously been protected. 19,6b -hemiacetals of 5a -halogeno-6b -hydroxy - 19 - oxo - steroids and 19,6b  - lactones of the corresponding 19-acids can be reduced under mild conditions e.g. the use of zinc and an alcohol or an acid, to yield, respectively, D 5-19-oxo-steroids and D 5-steroid-19-acids. These may also be prepared by oxidation of the 19-hydroxy-steroids. The steroids of the invention may further be converted to 19-oxygenated D 4 - 3 - oxo - steroids and these may then be heated with an alkali metal hydroxide in an anhydrous or aqueous solution to give 19-nor - D 4 - 3 - oxo - steroids. Examples are given and an extensive list of esterifying acids is provided.  The 19,6b  - lactone of 3b  - acetoxy - 5a -chloro - 6b  - hydroxy - 17 - oxo - androstane - 19-acid is prepared by chromic acid oxidation of the corresponding 6b ,19 - oxido compound. Specifications 994,764, 994,748 and 994,750 are referred to.
Patent GB-1107887-A (GB)
Title: Improvements in or relating to glass articles
IPC: C03C21/00
Filed: 1964-06-23
Abstract: A method of treating glass articles containing in at least a part of their surface a reducing agent, particularly flat glass produced on a bath of molten tin, comprises treating the said part of the surface of the glass article with the gaseous phase of a compound of a colouring metal for a sufficient time and at a sufficient temperature to introduce some of the said colouring metal into the glass surface to impart a desired colouring thereto.  The treatment is carried out at 450 DEG -700 DEG  C. for periods of up to ten minutes.  The metal compound is selected from the group cuprous chloride, cupric chloride, cupric sulphide, cupric oxide, silver bromide, silver chloride, silver sulphide, manganous chloride, ferrous chloride, nickel chloride and cobalt chloride.  The colour is developed by preferably heating in a non-oxidizing atmosphere. If the reducing agent is a stannous compound it may be introduced on to the glass surface by contacting the glass with stannous oxide or stannous chloride. The reducing agent may also be a reduced compound of arsenic or lead.
Patent GB-369523-A (GB)
Title: A process of, and apparatus for, treating artificial silk in the form of cakes
IPC: D01D10/04
Filed: 1931-09-16
Abstract: Artificial silk cakes are placed on a rotatable supporting surface amidst a circle of bars and are treated with liquid introduced into the interior of the cakes and passed transversely through the cakes by centrifugal force.  Two or more cakes may be superimposed between the bars and treated simultaneously.  The cakes are preferably wrapped up in tubular coverings of textile fabric such as knitted fabric.  The supporting surface may be a disc or ring and in order to facilitate discharge of liquid from the lower side of the cakes it may be made of porous material or may be grooved or take the form of a grating.  The internal diameter of the circle of bars corresponds with the external diameter of the cakes.  In order to decrease the area of contact between the bars and the cakes, angular bars may be used.  The treating-liquid may be introduced by sprinkling or spraying.ALSO:Artificial silk cakes are placed on a rotatable supporting surface amidst a circle of bars and are treated with liquid introduced into the interior of the cakes and passed transversely through the cakes by centrifugal force.  Two or more cakes may be superimposed between the bars and treated simultaneously.  The cakes are preferably wrapped up in tubular coverings of textile fabric such as knitted fabric.  The supporting surface may be a disc or ring and in order to facilitate discharge of liquid from the lower side of the cake, it may be made of porous material or may be grooved or take the form of a grating.  The internal diameter of the circle of bars corresponds with the external diameter of the cake.  In order to decrease the area of contact between the bars and the cake, angular bars may be used.  The treating liquid may be introduced by sprinkling or spraying.
Patent GB-224247-A (GB)
Title: Improvements in high frequency telephone systems employing overhead power conductors
IPC: H04B3/56
Filed: 1924-11-01
Abstract: 224,247. Telefunken Ges. f³r Drahtlose Telegraphie. Nov. 2, 1923, [Convention date]. Drawings to Specification. Wired wireless systems; multiplex signalling. -Relates to high-frequency telephony over power circuits, and consists in providing means for preventing interference with the telephone transmission when the power circuit is disturbed by switching or other operations at the terminal power station. The carrier current is impressed on the power line at a point beyond the switches, and according to one method, the terminal portion of the line, including the station apparatus, is given a high impedance for the carrier current. This is effected by shunting the terminal portion by a circuit of equal impedance but opposite phase character as regards the carrier current. In this way, carrier current impressed electrostatically on the line is prevented from traversing the terminal portion, and consequently telephone transmission is unaffected when this terminal portion is disconnected or otherwise disturbed by the switches. Choke coils or rejector circuits may assist in excluding carrier current from the power station. When carrier current is impressed on the line by a transformer, the station side of the transformer secondary may be connected to earth by an acceptor circuit, tuned to the carrier frequency. This forms a short-circuit to earth for the carrier current, and telephone transmission is therefore unaffected by earthing the power line or by operating switches, at the terminal station. The acceptor circuit should have high impedance for the power currents. For multiplex working, several rejector or acceptor circuits may be used.
Patent GB-796984-A (GB)
Title: Improvements in or relating to spark machining
IPC: B23H1/00
Filed: 1956-08-27
Abstract: 796,984. Machining by spark erosion. FIRTH STERLING, Inc. Aug. 27, 1956 [Aug. 30, 1955; April 20, 1956], No. 26092/56. Class 83 (4). In a spark machining process a rotary disc 6 is used having a porous working surface coated with a semi-solid dielectric material. The disc which is of cast iron or a sintered metal, is driven by an electric motor 9 and is connected by a brush 18 to a capacitor 3 with or without the interposition of a rectifier 7 which may comprise four germanium twin diodes. The positive side of the capacitor is connected by a copper clip 22 to the workpiece 5, which may be a tool having a tungsten carbide tip, Fig. 2 (not shown), resting on a pivotable table 19, also connected to the capacitor. The semisolid dielectric may be a microcrystalline petroleum wax, a grease such as calcium-base grease or petroleum jelly and may be simply wiped on the electrode surface or is preferably fed thereon from a container 24 having a screwoperated piston 26. A tray 23 is used to collect the discharged particles. Spiral grooves 29, Fig. 4 (not shown), may be provided in one of the side surfaces of the disc for retaining the dielectric. Examples are given of preferred dielectric waxes and greases.
Patent GB-1027659-A (GB)
Title: A method and apparatus for producing aqueous foam
IPC: A62C5/00
Filed: 1964-06-24
Abstract: 1,027,659. Aerating liquids; foam generators; spray producers. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. June 24,1964 [June 26,1963], No. 26139/64. Headings B1C and B2F. Foam is generated by forming a dispersion in a gas of an aqueous solution of a surface active agent and projecting the dispersion against an obstruction at a velocity greater than 200 f.p.s. and preferably 400 f.p.s. Apparatas includes a foam delivery nozzle 20 having at least twelve (as described, twenty-seven) flat gauge discs 23 therein. The dispersion may be formed in a spray gun in which a trigger-operated compressed air supply 36 induces supply of the liquid from a container 28, the liquid proportion being controlled by a screwed plug 44. In alternative arrangements of gun both air and liquid may be supplied under pressure through valves controlled by a single trigger, see Figs. 8-11 (not shown); or both constituents may be controlled by a single piston valve thumb-operated against the air pressure and having an adjustable screwed collar to limit its travel whereby the proportion of liquid supplied is controlled, see Figs. 12-15 (not shown).
Patent GB-1067136-A (GB)
Title: Thermal neutron reactor
IPC: G21C7/06
Filed: 1964-06-24
Abstract: 1,067,136. Controlling reactors. HITACHI SEISAKUSHO KABUSHIKI KAISHA. June 24, 1964 [June 24, 1963], No. 26151/64. Heading G6C. A thermal fission reactor comprises a reactor core surrounded by a neutron moderatorreflector, control elements containing fertile material or a combination of fertile and fissile material arranged around the core in the reflector or in a space between the reflector and the core, and control means to vary the effective surface area of the control elements. The control elements function as shielding of the reflector, low power corresponding to a virtual absence of reflected thermal neutrons in the core, and high power corresponding to a normal proportion of reflected neutrons. The fertile material may be thorium 232, uranium 238 or plutonium 240. The reflector is preferably heavy water. The control element effective surface area is varied either by rotating the plates to place them edge-on to the flux leakage path, or by withdrawing them bodily from the core vicinity. It is preferable for the core to produce a large neutron leakage, to obtain control over a wider range. A second reflector region may be employed between the control elements and the core, and the density of this reflector varied by introducing voids or changing temperature.
Patent GB-874170-A (GB)
Title: Improvements in and relating to needle bearings for cardan joints and like devices
IPC: F16C21/00
Filed: 1959-07-31
Abstract: 874,170. Universal joints. PITNER, A., and ROULEMENTS A AIGIULLES S.A., DES. July 31, 1959 [Sept. 9, 1958], No. 26277/59. Class 80 (2). [Also in Groups XXV and XXXIV] In a universal joint, Fig. 7, members P1, P2 each contain a pair of bearings R. Each bearing R has an outer race comprising a thin steel sleeve 1 having an end portion 4, and has a washer 10 interposed between the portion 4 and rollers 8 which are retained in position by a turned-over portion 16 of the sleeve 1. A journal B abuts the washer 10 and serves as an inner race for the rollers 8. The end portion 4 of the sleeve is formed so that a flat portion 7 is engaged by the washer 10 and an annular portion is contacted by a resilient split ring C, held in a groove c of an outer member A, said ring C serving to retain the bearing R in a bore b of the member A. The washer 10 may be a spring type as shown in Figs. 3 and 4, and may have holes or segments provided as shown in Figs. 5 and 6, so as to contain lubricant. A disc may be provided as an alternative to the washer 10.
Patent GB-886880-A (GB)
Title: Differential tachometer
IPC: G01P3/495
Filed: 1958-08-15
Abstract: 886,880. Speedometers. KOLLSMAN INSTRUMENT CORPORATION. Aug. 15, 1958 [Oct. 16, 1957], No. 26284/58. Class 106 (3). A differential tachometer comprises a tachometer electric motor having a rotor 13 and a stator 14, one of which (A) is driven by a synchronous electric motor 12, the other (B) being driven in the opposite direction at a speed proportional to the speed of a rotating member 23, the component B driving a tachometer indicating means 18, which may be of the magnet-and-eddy current-disc type, in response to the difference in speed between the rotor 13 and stator 14. The arrangement is said to be particularly suitable for use with a jet engine, in which application the synchronous motor 12 would be driven at a speed proportional to full engine speed. At this speed the percentage error of the instrument is at a minimum (Fig. 3, not shown). The indicator dial is arranged so that the pointer assumes the same angular position whether the synchronous motor 12 is running or not.
Patent GB-882637-A (GB)
Title: Veterinary preparation for the treatment of coccidiosis
Filed: 1959-07-31
Abstract: A remedy for the treatment of coccidiosis in poultry comprises 3,5-diketo-2,3,4,5-tetrahydro 1,2,4-triazine i.e. <FORM:0882637/I/1> or an alkali metal or alkaline earth metal salt thereof and a carrier (other than water alone or an organic solvent alone). 0,01% of the active ingredient may be present in the poultry feed.  The poultry feed may contain 50 to 80% grains, 0 to 10% animal protein, 5 to 30% vegetable protein and 2 to 4% minerals together with supplementary vitaminaceous sources.  Growth promoters such as antibiotics and sulphonamides may also be present.  Feed formulations are disclosed.ALSO:A remedy for the treatment of coccidiosis in poultry comprises 3,5-diketo-2,3,4,5-tetrahydro-1,2,4-triazine, i.e. <FORM:0882637/VI/1> or an alkali metal or alkaline earth metal salt thereof and a carrier (other than water alone or an organic solvent alone). 0.01% of the active ingredient may be present in the feed. The poultry feed may contain 50 to 80% grains, 0 to 10% animal protein, 5 to 30% vegetable protein and 2 to 4% minerals together with supplementary vitaminaceous sources.  Growth promoters such as antibiotics and sulphonamides may also be present.