baber/WOPTO huggingface dataset:
Patent GB-109902-A (GB)
Title: Improvements in or relating to Conveyors.
Inventor: THOMPSON WILLIAM
IPC: B65G25/00
Filed: 1916-12-20
Abstract: 109,902. Thompson, W., Greener, H., Morgan, J., and Palmer, M. Dec. 20, 1916. Ratchet and like step-by-step conveyers.-In conveyers of the kind comprising a trough adapted to receive the material to be conveyed and having therein a series of scrapers which are adapted to reciprocate, the scrapers being hinged and free to move on their hinges in one direction only, the hinged scrapers d are connected to rods h disposed on each side of the trough a and mounted on runners j moving on tracks m. The scrapers d are carried by hangers e which are pivoted in brackets g attached to rods h. Stops p prevent movement of the scrapers backwards. Each scraper d may be hinged to a hanger e so as to swing in the forward direction, springs being provided to return the scrapers to working position at the commencement of the working stroke. Each pair of wheels is connected by a crossmember o passing below the trough. Any reciprocating mechanism may be used for moving the rod h. The trough is preferably much deeper than the scrapers, but some of the scrapers may extend to the top of the trough. In a modification, the sides c of the trough are formed separately from the bottom b and are carried by the connecting-rods h. In another modification, the scrapers are hinged at the bottom and the movable sides c, and each pair of wheels j are coupled by a cross-member arranged within the trough. In further modifications, the scrapers may be attached to a central connecting-rod, or to a wire rope or ropes, the ends of which are connected to the ends of a piston-rod.
Patent GB-849540-A (GB)
Title: A yarn metering device
IPC: B65H61/00
Filed: 1958-06-09
Abstract: 849,540. Stop motions. DE NEGRI, A. June 9, 1958 [June 7, 1957], No. 18320/58. Class 120(2). [Also in Group VIII] In an apparatus for measuring and cutting a predetermined length of yarn passing to a collecting device (see Group VIII), the upper end of a weighted arm 13 rests against the yarn 14 moving towards a measuring pulley 26. If the yarn breaks, or when it is severed after measuring, the arm falls to the dotted-line position, moving a lever 17 to release a catch 171 for brake arm 15, which then stops wheel 26, and to close contacts 28, 29 of a circuit 341 for electric braking means for the yarn collecting device. Lever 17 is also actuated from below by a cam 19 if a second weighted arm 16, normally resting against the yarn leaving pulley 26; is released by cessation of tension on that run of the yarn.
Patent GB-1471215-A (GB)
Title: Dentifrice
IPC: A61K8/26
Filed: 1974-04-26
Abstract: 1471215 Dentifrices BEECHAM GROUP Ltd 24 April 1975 [26 April 1974] 18357/74 Heading A5B A method of preventing or inhibiting syneresis in dentifrice compositions containing water-soluble anionic cellulose derivatives as thickening agents comprises including in the composition a natural or synthetic water swellable clay and a water-soluble salt of a hydroxybenzoic acid ester having 1 to 7 carbon atoms in the ester portion.
Patent GB-639416-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B15/06
Filed: 1947-07-10
Abstract: 639,416. Refrigerating. CARRIER ENGINEERING CO., Ltd. July 10, 1947, No. 18379. Convention date, July 13, 1946. [Class 29] In a continuous cycle absorption refrigerating machine the evaporator of which operates under a partial vacuum, as described in Specification 639,413, the valve 34 in the discharge of the absorbent circulating pump 8 is controlled in accordance with the temperature of the chilled water in pipe 27 by a pressure device 35, 36 acting through line 47. The valve 37 controlling the admission of steam to the generator 6 is controlled in accordance with the temperature of the concentrated absorbent leaving the generator by a device 40, 41 acting through line 47<SP>1</SP>. The valve 42 controlling the flow of the cooling water through the absorber 3 and condenser 7 is controlled in accordance with the condensate temperature by a device 43, 44 acting through line 45. Actuating air for the controls is supplied from a system 51, 50 which includes a shut-off valve 49 which is closed by a pressure responsive member 48 if the pump 8 fails so as to shut down the machine. The response characteristics of the control of valve 37 may be modified at partial loads by connecting the device 40 to either the line 47 or the line 45 by line 46 or line 46<SP>1</SP> respectively A by-pass pipe. including a control valve may be included to divert cooling water past the condenser, Fig, 4, (not shown). Specification 639,414 also is referred to. The Specification as open to inspection under Sect. 91 comprises also the subjectmatter of Specification 639,414. This subject-matter does not appear in the Specification as accepted.
Patent GB-1531937-A (GB)
Title: Treating planar objects with a liquid
IPC: H05K3/26
Filed: 1976-05-05
Abstract: 1531937 Cleaning planar objects INTERNATIONAL BUSINESS MACHINES CORP 5 May 1976 [13 June 1975] 18384/76 Heading F2N Apparatus for cleaning a generally planar object, e.g. a semi-conductor module 4, comprises a chamber for containing a fluid, a plate 27 formed with a plurality of apertures and located in the chamber, means for supporting the object adjacent and parallel to the plate and means for alternately urging fluid through the apertures towards the region of an object supported in use and sucking fluid through the apertures from such region. In a preferred embodiment, the chamber includes four horizontally disposed plates 27 located one above the other and a door for the chamber carries four shelves for the objects, each shelf being located beneath a respective plate 27 in the closed position of the door, Figs. 1-3 (not shown). Associated with each plate 27 is a diaphragm 22, which carries a plate 25 formed with bores 37 and apertures 42, the latter registering with the apertures formed in plate 27. This registry is maintained by spigots (not shown) on plate 27 which engage in blind bores formed in plate 25. Springs 28 urge plate 25 to its upper position, Fig. 5B. Initially, air pressure is maintained in space 33 above the diaphragm 22 to keep same in its lower (Fig. 5A position and liquid, e.g. solvent, is supplied via port 36 and the registering apertures into the chamber until all objects 4 and the devices 16 are immersed. Pulsating air pressure is produced in the space 33 to effect the repeated blow/suck cycles of fluid through the apertures in plate 27. Subsequently, the chamber can be drained and, with the diaphragm held in its lower position, the objects can be sprayed with liquid supplied via part 36 and the registering apertures and then dried with gas supplied by the same route.
Patent GB-573095-A (GB)
Title: Improvements in or relating to calculators for the solution of triangles
IPC: G06G1/00
Filed: 1943-11-05
Abstract: 573,095. Trigonometrical calculators. BATES, E. Nov. 5, 1943, No. 18423. [Class 97 (iii)] [Also in Group XIX] A calculator for the solution of triangles comprises a rectangular base 1 marked with a datum line 2 spaced from each of its longitudinal edges and with graduations 3, 25, an arm 5 having graduations 6 and pivoted to the base by a pivot 4 to turn about an axis intersecting the datum line 2, a semi-circular protractor scale 8 situated on the base 1 about the said axis, a cursor 9 with an aperture 17 slidably engaged with the opposite longitudinal edges of the base 1 and carrying a pivot 10 which travels along the datum line 2 on movement of the cursor, a second graduated arm 13 mounted on the pivot 10 and a second semi-circular protractor scale 11 about the pivot 10 and disposed on the cursor. The arms 5, 13 may be locked in any position by the nuts 23 and each is marked with a line 26, 27 for alignment with the lines 24, 28 for right-angled positioning with respect to the base 1. When required a third protractor scale 18 may be slidably mounted on the arm 5 by lips 22 and extensions 270 may be fitted into slots 260 in the arms. In use the datum line 2 and adjustable arms 5, 13 are superposed on the triangle and detail read off.
Patent GB-744855-A (GB)
Title: Melt spinning apparatus
Inventor: PHIPPS JOHN WILDEY
IPC: B29C48/38
Filed: 1953-07-03
Abstract: A melt-spinning apparatus comprises a feed passage leading to a melting unit which has a number of hollow individual heater members, e.g. hollow cores or pins, projecting from a support along the line of feed and spaced closely so as to impede passage of solid <PICT:0744855/IV(a)/1> <PICT:0744855/IV(a)/2> <PICT:0744855/IV(a)/3> material whilst permitting passage of molten material to an outlet leading to the spinning pump.  The heater members are heated by circulation of fluid through the interior thereof.  The heater members may be set in a concave or convex support, preferably convex, and are preferably arranged so that their tips all lie in one plane. The solid material, e.g. polyethylene terephthalate in chip form, is preferably fed under pressure by a screw conveyer whose pressure is kept constant by a compressed spring or pneumatic piston which allows the screw to retract axially under excessive pressure.  One example of a melting unit is shown in Fig. 4, wherein the conical heating members 24 are mounted in a concave support 23 and are heated by fluid introduced at 27 which passes into the interior of each member 24 and out at 27A.  Molten material passes through the outlet 30 which is restricted by member 28 to prevent the passage of unmelted chips.  Fig. 9 shows a complete melt-spinning apparatus in which polymer chips are fed from a hopper 32 to screw conveyer 33, driven by motor and reduction gear 44, 43, thence to melting unit 31.  The molten material passes on to spinning pump 37, filter pack 38 and spinneret 39.  The melting unit is heated by passing heating fluid in at 40 and out at 41; the hopper and barrel 34 of the screw conveyer may also be heated so as to pre-heat the chips before they reach the melting unit.  The screw conveyer 33 rises against compression spring 35 in the event of excessive pressure build up. Fig. 10 shows a further example of a melt unit in which the pointed hollow heating elements 11 are mounted in a convex support 12 so that their points lie in one plane.  Heating fluid enters at 12B, passes through tubes 11A into the interior of each heating element, into chamber 12C which opens into the hollow jacket 13A, and out at 16.  Molten polymer passes through peripheral cavity 14 to outflow duct 15.  The heating elements 11 may be arranged radially and their diameters may decrease towards the outside of the melting unit, or they may all be of the same diameter and spaced equi-distantly from one another.
Patent GB-435943-A (GB)
Title: Improvements in or relating to paper and the like bags or containers
IPC: B65D30/22
Filed: 1934-06-22
Abstract: 435,943. Making paper &c. bags &c. MARSHALL, J. W., 367, Corn Exchange Buildings, Fennel Street, Manchester. June 22, 1934, No. 18500. [Class 94 (ii)] In apparatus for the manufacture of paper &c. bags &c., a slotted former plate 26, is provided about which the paper &c. 20 is longitudinally displaceable permitting contact between the inner walls of the paper &c. tube along one or more lines of adhesive to enable the said inner walls to be secured together to form two or more compartments in the paper &c. tube. The web of paper &c. 20 from supply, is gummed at 34, 35 by adjustable discs 30, 31, and, after passing over a guide roll 24, is formed into a tube by wheels 25 and a former plate 26. This plate is slotted at 27 which slot may extend to the edge 38. As the paper &c. tube is fed forwardly by rolls 43 the gum-streak 34 effects the longitudinal seam while the streak 35 invites the inner faces of the tube to form two compartments. The bag tubes are then severed by the breaker bar 40 and the bags completed by turning over the leading or rear edge. Transparent or opaque paper or linen may be used.
Patent GB-790699-A (GB)
Title: Improvements in protection apparatus for operating electric circuits with a variabletime lag
IPC: H02H3/093
Filed: 1955-06-28
Abstract: 790,699. Protective cut-out systems. BALDWIN, H. T. June 27, 1956 [June 28, 1955], No. 18565/55. Class 38 (5). A protective circuit with inverse time lag comprises current transformers A with secondary windings b in series and connected to a bridge rectifier C supplying relay coils c, c<SP>1</SP>. Coil c operates contacts d in the time-delay circuit comprising a capacitor d<SP>3</SP>, a resistance d<SP>4</SP> and a relay coil d<SP>1</SP> which together with the coil c<SP>1</SP> acts on contacts d<SP>2</SP> in the circuit of the supply contactor coil (not shown). When an isolator (not shown) on the " live " side of the contactor is closed, a potentiometer d<SP>6</SP> is energized to supply a bridge rectifier d<SP>5</SP> and the coil d<SP>1</SP> so as to close the contacts d<SP>2</SP>. When excess current flows in the current-transformer circuit the coil c opens the contacts d to de-energize the coil d' with a time lag. the time lag being reduced as the fault current increases by the action of the coil c<SP>1</SP> opposing coil d<SP>1</SP>.
Patent GB-822616-A (GB)
Title: Improving the colour reproduction in colour photography
IPC: G03C1/83
Filed: 1956-06-15
Abstract: Of sixteen rhodacyanine, benzoxocarbocyanine and benzimidazole carbocyanine dyes having narrow absorption bands positioned to compensate for undesirable green-sensitivity of the red-sensitized layer of multilayer photographic material and used in a filter layer coated thereon preparations are given of <FORM:0822616/IV(c)/1> by heating 2-methylmercaptane-3-ethylbenzthiazole - toluene - sulphonate and rhodamine dissolved in propanol with triethylamine, recrystallizing the yellow dye which precipitates from chloroform, heating this successively with dimethylsulphate and with pyridine together with 2-methyl-3-ethyl-b -naphthothiazole-toluene sulphonate and trimethylamine, and recrystallizing the precipitated dye from chloroform and methanol. <FORM:0822616/IV(c)/2> by heating 2-methylmercaptane-5-chlorobenzthiazole and dimethyl sulphate, heating the product with N-ethylrhodanine and triethylamine in pyridine, diluting with methanol, recrystallizing from pyridine and methanol and heating the result successively with dimethyl-sulphate and with pyridine together with 2 2 - methyl - 3 - ethyl - 5 - phenyl - benzoxazole-toluene-sulphonate and recrystallizing the product from methanol and chloroform.
Patent GB-127006-A (GB)
Title: Improvements in or relating to Carburetters for Internal Combustion Engines.
IPC: F02M7/11
Filed: 1916-12-30
Abstract: 127,006. Soc. du Carburateur Zenith. Dec. 31, 1915, [Convention date]. Spray carburettors.-In automatic carburettors giving, after adjustment, a constant proportion of air to fuel, the proportion may be varied by varying the pressure in the space above the fuel in the float chamber. This is effected by transmitting the suction in the induction pipe to the float chamber through a conduit provided with a valve which may be controlled manually or by a barometric device. Several diagrammatic Figures illustrate the principle of the invention, which is shown in a practical form in Figs. 5 and 6. The carburettor has concentric nozzles j, one of which is supplied from a well fed from the float chamber c through a submerged jet. The top of the well communicates with the top of the float chamber which, in turn, communicates with the air intake a by an uncontrolled pasksage h and, with the induction pipe above the choke-tube b, through a passage e, Fig. 6, controlled by a ported conical rotary valve r. The well may be open to the atmosphere.
Patent GB-242357-A (GB)
Title: Improvements in or relating to processes for purifying clays and improving their colour
IPC: C04B33/10
Filed: 1924-08-07
Abstract: Clay is deflocculated by a reducing agent such as sodium sulphide or oxalate, with or without a compatible additional K  deflocculator such as sodium pyrophosphate or oxalic acid.  The undeflocculated matter is separated and the bleaching of the clay is completed by adding a second reducing agent such as oxalic acid.ALSO:Clay is purified by treatment with a plurality of water-soluble reducing agents acting in presence of one another. The reagents mentioned are sodium sulphide, oxalate, sulphite, bisulphite, metabisulphite, hyposulphite, and thiosulphate, calcium sulphide dissolved in alkali carbonate solution, potassium sulphide, sulphurous acid, and oxalic acid.  Examples describe the treatment of clay with oxalic acid and sodium thiosulphate; oxalic acid and sodium sulphide; oxalic acid, sodium sulphide and sodium thiosulphate; calcium sulphide dissolved in sodium carbonate solution, and sulphurous acid.  The treatment may be so conducted as to effect also a purification by deflocculation; for instance the clay may be deflocculated by sodium sulphide or oxalate with or without a compatible additional deflocculator such as sodium pyrophosphate or some oxalic acid, and after separation of the undeflocculated matter, the slip is then treated with the second reducing agent such as oxalic acid.
Patent GB-458810-A (GB)
Title: Improvements in and relating to bird-feeders for blue tits, nuthatches, and other similar wild birds that frequent gardens
IPC: A01K39/01
Filed: 1935-07-02
Abstract: A feeder for blue-tits and other wild birds comprises a wire cantilever adapted to be secured to a window frame or other object and to support a food container comprising a wire coil.  The helices of the coil are so spaced as to retain nuts &c. while allowing access to the food by the birds.  The food containers may be mounted for rotation on horizontal axis, or they may be suspended vertically.
Patent GB-669020-A (GB)
Title: Improvements in or relating to the control of the charging of electric thermal storage heaters
IPC: G05D23/275
Filed: 1950-07-28
Abstract: 669,020. Control systems for consumption apparatus. VEALE, L. July 28, 1950 [April 28, 1950], No. 18883/50. Class 38 (iv). The charging of an electrical thermal storage heater is controlled by the temperature conditions obtaining at the time of charging by contacts 8 ... 10 each time switch controlled to consecutively operate for a period, seriesconnected respectively with thermostats 5 ... 7 made when the temperature is beneath a predetermined value, the circuits controlling a contactor 2 in the heater supply circuit. The thermostats 5 ... 7, set to differing temperatures, are preferably located outside the building. The heater may thus be charged at a cheap night tariff, during which the ambient temperature conditions are indicative of those during discharging on the following day. The contacts 8 ... 10 may close consecutively and open simultaneously, or vice versa, or operate in a combination of the two.
Patent GB-599451-A (GB)
Title: An improved boring bit for use in drilling coal, stone and the like
IPC: E21B10/42
Filed: 1946-07-24
Abstract: 599,451. Drills. HAY, C. F., LYALL, E., and SHAHP, W. July 24, 1946, No. 18936/45. [Class 83 (iii)] In a bit for drilling stone or coal having forked cutting portions and helical fluting arranged to communicate with helical fluting on a drill rod so that core material is continuously removed from the bit, the portion of the body 7 between the cutting portions 3, 4 and the shank 1 is cut away to form a shoulder 7a and give clearance behind the cutting portions. The shank has a square or other non-circular section, collar 8 engaging a corresponding recess in the drill rod to ensure that the flutes 5 on the bit lead naturally into the fluting on the drill rod.
Patent GB-692626-A (GB)
Title: Improvements in or relating to dolly-operated electric switches
Inventor: EVERITT LAURIE HAROLD RAYMOND
IPC: H01H23/04
Filed: 1950-07-29
Abstract: 692,626. Tumbler switches. ASHLEY ACCESSORIES, Ltd. July 27, 1951 [July 29, 1950], No. 18984/50. Class 38(v) The movable contact of a switch is slidable rectilinearly against spring bias by movement in one direction of a dolly having a cam part carrying a roller cooperating with the contact, the dolly having an overcentre action so that when it is moved back over the centre the spring means will return the movable contact with a snap-action. In a double-pole form, two contact bars 24, 25 co-operating with fixed contacts 12-15 are pressed apart by springs 29, 30 and are slidable in slots 18, 21, being urged to the closed position by springs 19. Each bar has an upstanding insulation portion 32 co-operating with rollers 33 on a dolly 16 so that clock wise rotation of the dolly over the deadcentre position to the Fig. 3 position pushes the bars to the left to open the switch. Bars 24, 25 bear continuously against contacts 12, 14 and are cranked at 27 and carry insulating members 31a which are moved opposite contacts 13, 15 in the open position. The fixed contacts may be in the form of resilient jaws in which case springs 29, 30 are omitted, or butt contacts may be used with or without a partial sliding movement obtained by a wedge-shaped movable contact co-operating with a wedge-shaped recess in the fixed contacts. A single-pole switch having resilient jaw contacts is also described, Figs. 5-7 (not shown).
Patent GB-763024-A (GB)
Title: Method of machining workpieces and apparatus for carrying out this method
IPC: B23Q39/04
Filed: 1954-06-29
Abstract: 763,024. Drilling-machines. WITZIG, K. E., and FRANK, R. June 29, 1954 [June 30, 1953], No. 19021/54. Class 83 (3). [Also in Group XXIV] A rotatable work-table comprises a number of brackets 11, Fig. 2, for supporting workpieces 2, the brackets having axes parallel to the support-axis and each being rotated through a predetermined angle when the table is indexed. Each bracket 11 is connected by gearing 13 to a central fixed gear 14 so that the workpiece is always oriented in the same direction relatively to the position in which it is placed on the table. Three drilling, one reaming, one boring and one countersinking opera tions can thus be carried out with two banks of tools 7, 8 instead of the four tool holders 3-6, Fig. 1, necessary on a conventional machine where the workpieces are secured directly on the table 1. In a modification the work-brackets are rotated by a series of gears 16a, 16b, 16c, Fig. 3, intermediate pre-loaded ring gears 15 (see Group XXIV), and gears such as 17, 17a, 17b, the sets of gears being displaced axially to allow a greater number of brackets to be carried by the table. Each workpiece is clamped by a collet on a rod 23 urged downwardly by a spring 24. The workpieces are released in turn by a fixed cam 21 engaging rollers 22 on the rods 23.
Patent GB-570705-A (GB)
Title: Improvements in smoke tube boilers
IPC: F22B9/12
Filed: 1943-11-17
Abstract: 570,705. Steam boilers. MARSHALL, SONS & CO., Ltd., and BURGESS, E. Nov. 17, 1943, No. 19168. [Class 123 (ii)] A vertical smoke-tube boiler is constructed of a pair of flanged end plates 1 and a cover plate 2 which extends between said end plates and is dished at the bottom to provide a rounded portion 5 constituting the top of the furnace chamber 6, the latter extending from the front of the boiler to a combustion chamber at the rear thereof. The boiler is square, or rectangular in plan, and the top of the cover plate is domed and the tubes 3 disposed more or less horizontally between the said combustion chamber and a smoke box at the front.
Patent GB-1046129-A (GB)
Title: Improvements in or relating to encapsulated electrical component arrangements and methods of manufacture thereof
IPC: H01G13/00
Filed: 1965-05-07
Abstract: 1,046,129. Capacitors; resistors. SIEMENS & HALSKE A.G. May 7, 1965 [May 8, 1964], No. 19280/65. Headings H1M and H1S. An electrical component, e.g. a resistor or capacitor having axial connecting leads is inserted in an aluminium container (which may be internally varnished) with one lead passing through a bored nipple which is thereafter pinched to the lead. An insulating foil is inserted between the component and the container, and the latter is filled with a synthetic potting resin and centrifuged to extract air bubbles. Vacuum may be applied during centrifuging.