baber/WOPTO huggingface dataset:
Patent GB-795206-A (GB)
Title: Improvements in and relating to means of controlling the emptying of tanks containing liquids of different density
Inventor: HOBSON ERIC DOTT
IPC: B01D17/02
Filed: 1955-09-08
Abstract: 795,206. Gravity-separation apparatus. YARROW & CO., Ltd. Aug. 23, 1956 [Sept. 8, 1955], No. 25787/55. Class 46. [Also in Groups XVII, XXVIII and XXXIII] An apparatus for controlling the emptying of a tank 1 containing two stratas of a normally non- miscible liquids of different densities includes a suction conduit 2 having its inlet 4 near the tank bottom and an air pipe 5 in the suction conduit and provided with axially spaced apertures at a distance from the bottom of the tank, the arrangement being such that when the lower of the stratas of liquid has been withdrawn from the tank, air from the air pipe will be drawn into the suction conduit so as to destroy the suction effect and prevent further liquid being withdrawn from the tank. Thus the air pipe outlet comprises spaced apertures 5a, the lowermost of which is at a distance from the bottom of the tank substantially equal to the depth of the upper of the stratas of the liquid, the arrangement being such that progressively increasing amounts of air are admitted to the suction conduit during the final stages of the withdrawal of the lower strata of liquid so that the suction will be broken when the whole of the lower strata has been withdrawn from the tank.
Patent GB-870116-A (GB)
Title: A process for obtaining uranium dioxide
IPC: C01B13/18
Filed: 1957-08-15
Abstract: <PICT:0870116/III/1> Uranium dioxide is prepared by heating to decomposition temperature, e.g. 800-900 DEG C., ammonium diuranate and causing the gases formed during such heating to react with the oxide residue of the decomposition, e.g. in the temperature range 700-900 DEG C. The ammonium diuranate is placed in a boat 3 and heated to decomposition temperature in a furnace 1, the gases evolved passing through line 5 and valve 6 to a gas holder 10.  Valve 6 is then closed and valves 7 and 8 opened so that gas from the gas holder 10 is passed into the reaction chamber through line 12 and gases leaving the reaction chamber are collected in gas holder 11.
Patent GB-1502829-A (GB)
Title: Pipeline pig
IPC: G01B7/28
Filed: 1975-06-17
Abstract: 1502829 Pipe-line pigs T D WILLIAMSON Inc 17 June 1975 [19 July 1974] 25849/75 Heading G1M A pipe-line being laid on the sea bed from over the stern of a floating barge (10) Fig. 2 (not shown) contains a pipe-line pig 15, Fig. 1, connected electrically and mechanically by a cable 16 to a pipe line up clamp 17 controlled by a rod 18, a console 22 containing read-out means to indicate any kinks or dents in the pipe detected by the pig. The pig comprises a central body 23, Fig. 3, having a tubular portion 23a, Fig. 5, and plates 23b 23c fixed thereto. Brackets 23d and 23e carry bellcrank levers 25 mounting pipe engaging rollers driven by reversible motors 45 and clutches and constructed as shown or as in Fig. 10, the rollers being biased outwardly and arranged so that the two sets over the whole of the internal surface of the pipe. Plates 27, 28 connected to the roller mountings and slide on an assembly of rods 29, 30 joined by an intermediate plate 31, the slide assembly being supported on the pig body by plates 23b, 23c abutted by springs 32, 33 urging the rollers outwardly. In operation when one or more rollers encounters a dent it moves inwardly causing one of the plates 27 or 28 to slide on the slide assembly and move a push-rod 37, Fig. 5, to operate a potentiometer 39 via a last motion connection 40. The potentiometer 39 so connected to a constant current source 54, Fig. 6, via a calibrating potentiometer 55 and produces a voltage which is proportional to pipe diameter that is applied to digital voltmeters 56, 60, the reading on 56 being locked in and gated to the comparators 63, 64 and the printer 58. If the voltage is outside the limits set by maximum or minimum switches 67 a respective one of alarms 65, 66 is sounded. The A.C. power oscillator 68 is then momentarily switched on to release solenoid 43 which returns the slider of potentiometer 39. The output of digital voltmeter 60 is then gated to the size compartor circuit and the printer just as was voltmeter 56 to provide evidence that 39 has been reset. The time of day from clock 59 and an events count from counter 62 are also printed. Means are also provided to connect the memory means in the pig to the read-out means 58 for giving a periodic reading of the output stored in the memory whilst the pig as in the pipe, and after one output read-out another output may be released to the memory means by a release solenoid 43 in the pit. The pig in Fig. 7 (not shown) is modified as that when one or more rollers encounter a dent the entire slide assembly moves to move all of the rollers inwardly so that should the pig become stuck in the pipe a second following  pig could be made to push on a bumper plate 74 and collapse all the rollers to enable the first pig to be dislodged.
Patent GB-1213947-A (GB)
Title: Developing apparatus for reproduction machine
IPC: G03G15/08
Filed: 1969-05-21
Abstract: 1,213,947. Developing electrostatic images. RANK XEROX Ltd. May 21, 1969 [May 24, 1968], No.26007/69. Heading G2H. A xerographic copying machine having a photoconductive belt 12, Fig.8, has a cascade developing apparatus 14 for discharging developer on to the belt 12 bearing an electrostatic image. The apparatus includes an internal bucket conveyer 236, Fig.7, having buckets 235 which return cascaded developer to a horizontal screw conveyer (247) Fig.9 (not shown) which in turn advances the developer to a passageway 284, Fig. 8. Developer flows between a plate 220 and an adjustable plate 286 which controls the flow of developer down a tapered edge 287, and then between a developer electrode 210 and the belt 12. A screw conveyer (226) Fig.10 (not shown) conveys cascaded developer to the conveyer 236 Fig.7.
Patent GB-527004-A (GB)
Title: Improvements in windows for emergency and other purposes
IPC: E06B7/28
Filed: 1939-09-18
Abstract: 527,004. Windows. STODDART, W. Sept. 18, 1939, No. 26058. [Class 20 (iii)] A panel for use in replacing a window in case of emergency comprises a framework of cardboard, plywood, or similar lightweight material 3 surrounding spaces filled with flexible transparent sheet material 2 such as celluloid, cellulose acetate, mica, or that known under the Registered Trade Mark "Cellophane." The transparent material may be sandwiched between a pair of superimposed frames which should be of sufficient width to allow of being trimmed to a suitable size to fit a window. Parallel bars 4 may be left between opposite margins 3.
Patent GB-883571-A (GB)
Title: Teat dilator
IPC: A61D1/02
Filed: 1960-07-27
Abstract: 883,571. Teat dilators. STEVENSON TURNER & BOYCE Ltd. July 27, 1960 [Aug. 21, 1959], No. 26140/60. Class 81 (2). [Also in Group I] A teat dilator comprises a tube 14 and a flange 22 on the tube near one end for limiting insertion of the other end into the milk duct, the flange being cup-shaped so that it embraces the end of the teat and can receive medicament which is held against the teat. A lateral opening 17 communicates with the tube bore. A sealing cap 26 threaded on the end of the tube near the flange is removed when the animal is to be milked.
Patent GB-487934-A (GB)
Title: Improvements in or relating to the dyeing or analogous fluid treatment of textile fibres
IPC: D06B11/00
Filed: 1936-09-26
Abstract: <PICT:0487934/IV/1> Wound packages of fibrous textile material in condition prior to spinning, such as a textile roving, are coloured, to give a shade effect in the fabric in which they are subsequently employed, by softening the bulk of the package as wound to equalize its penetrability by a liquid under pressure, applying, by a pattern stencil, pressure to compress and consolidate and define as to their edges those parts of the package which come under the solid parts of the stencil when the package is mounted on a foraminous holder, and passing colouring liquid through the stencil, the uncompressed parts of the package and the holder by differential pressure.  The softening of the bulk of the package may be effected by first winding the package in the roving frame upon a tubular holder over which is placed a permeable sleeve, and removing the roving and sleeve to allow inward expansion of the mass.  A perforated metal tube 6 is then fitted in the narrowed central bore and this may be mounted on a hollow mandrel 1 closed at one end and having a passage 3 through one side.  The mandrel may, if desired, be patterned to correspond to a stencil 4 which is mechanically pressed, as by a piston in a cylinder under compressed air, upon the roving x.  A colour container 5 is associated with the stencil 4, and liquid is drawn therefrom through to the mandrel 1.  Specifications 294,504, [Class 15 (i)], and 482,817 are referred to.
Patent GB-261861-A (GB)
Abstract: 261,861. Clowes, A. Sept 2, 1925. Props and posts.-A clothes prop is provided with a foot which is secured by screws to the bottom of the prop and which is formed with a spike to prevent the prop from slipping. Reference has been directed by the Comptroller to Specification 2547/10, [Class 34 (i), Drying gases &c.].
Patent GB-774213-A (GB)
Title: Improvements in or relating to paper-making machines
Inventor: HEYS RALPH CHALINOR
IPC: D21F3/04
Filed: 1954-09-10
Abstract: 774,213. Wet presses of paper-making machines &c. MILLSPAUGH, Ltd. Sept. 12, 1955 [Sept. 10, 1954], No. 26224/54. Class 96. A suction transfer roll 4 picks up the wet web from the wire-cloth 1 of a paper-making machine and a pick-up felt 5 carries it through a first wet press 6, 7, the lower felt 8 of which takes it through a second press having two upper rolls 10, 11 coacting with a roll 9 having suction zones 12, 13, the web 14 then passing to a drying cylinder. In modifications: (1) the felt 8 carries the web to the drying cylinder; (2) the pick-up felt 5 is extended at 5A, 5B to encompass the roll 10; and (3) an extra upper felt encompasses the roll 11 and accompanies the web over part of the drying cylinder surface. Specifications 265,415, [Class 96], and 617,280 are referred to.
Patent GB-1195934-A (GB)
Title: Extraction of Vanadium Values.
IPC: C22B34/22
Filed: 1968-05-31
Abstract: 1,195,934. Hydroxamic acids. GENERAL MILLS Inc. 31 May, 1968 [1 June, 1967], No. 26334/68. Heading C2C. [Also in Division C1] Neodecanohydroxamic acid is prepared by dissolving NH 2 OH.HCl in dimethylformamide, adding triethylamine at 20-25‹ C., adding neo-decanoyl chloride at 25-30‹ C., allowing reaction to proceed and then pouring into 0.5 M HCI. The product is extracted with ether, washed and dried.
Patent GB-1203898-A (GB)
Title: Apparatus for feeding articles one at a time into a tube
IPC: B23Q7/16
Filed: 1969-05-23
Abstract: 1,203,898. Discharging articles; pneumatic conveyers. CLYDE CORP. 23 May, 1969 [11 July, 1968], No. 26423/69. Headings B8A and B8S. Articles 66 from a vibrating bowl are received from the right along track 22 and are discharged down shoot 26 by air admitted through passageway 48 formed in probe 44. Thus, the articles move leftwards along track 22 on to the top of jaws 76 which are resiliently held by rubber ring 78. The probe 48 is carried by piston 40 operated by air introduced at 38, the passageway 48 co-operating with fixed valve stem 54. When an article is positioned on top of jaws 76 air is introduced at 38 to force down piston 40 so that probe 44 engages the top of article 66 and forces it downwards through the jaws 76. At this moment passageway 48 is freed from valve stem 54 to permit the air to pass down passageway 48 and blow the released article down tube 26. Embodiment of Figs. 10 and 11.-The first of articles 66 moving rightwards along track 22b is received within jaws 96, pivoted at 98 and influenced at 100, so that ,when probe 44b descends it engages the article and forces it downwards past the jaws, and blows it down tube 26b by air jet issuing through passageway 48. At the same time lever 104 pivoted at 106 is released at 114 by the probe 44, and moves anti-  clockwise to check the next article moving along track 22b. The cycle is repeated.
Patent GB-836509-A (GB)
Title: Seal for pump pistons
IPC: F16J15/3216
Filed: 1958-08-18
Abstract: 836,509. Stuffing-box substitutes. SCHAFER, G., and SCHAFER, O., [trading as KUGELFISCHER G. SCHAFER & CO.]. Aug. 18, 1958 [Aug. 16, 1957], No. 26428/58. Class 122 (5). A sealing device 7, Fig. 1, for a fuel injection pump comprises an outer metal ring 13 having embedded therein a resilient ring 14 which includes a sealing lip 8 in engagement with the pump piston 5, the device 3 being clamped between surfaces 9, 10. The resilient ring 14, which may be a plastic of the polyamide class and moulded or pressed into the metal ring 13, is formed with the outer diameter of the lip 8 tapered so as to fit into a correspondingly shaped surface 12 in the pump housing 1 when the ring is clamped between the surfaces 9, 10 by a nut 11. The bore of the ring 14 may be tapered at 17 right to the edge of the lip as shown in Fig. 2, and cylindrical at 16, or the portion of the bore immediately adjacent the lip may be cylindrical.
Patent GB-711435-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: SAUNDERS ALFRED PERCY
IPC: D04B11/06
Filed: 1951-11-12
Abstract: 711,435. Knitting-machines. WILDT & CO., Ltd. Nov. 12, 1951, No. 26435/51. Addition to 669,770. Class 74 (2) To positively ensure that the yarn carrier is prevented from rebounding when the contact piece 10 of the plate 3 is engaged by the end stop 9 as described in the parent Specification, the notch 103 engaged by the check plunger 27 is modified so as to provide a vertical face 103a for engagement by the side of the check plunger. Further, to permitsubsequent disengagement of the notch by the plunger, each housing 67 is adapted to be additionally moved aside at the commencement of each carrier, traverse. For this purpose, a lever 106 is influenced by a cam 111 carried on the slur bar, one arm of the lever engaging a slot 104 in the housing and moving the housing aside each time the cam engages the lever at the commencement of the carrier traverse. The lever is provided with a spring- loaded plunger 109 so that it rides over the cam 111, when the carriers are nearing the end of their traverse, thereby avoiding moving the end stops out of the path of the carrier plates and ensuring stoppage of the carriers.
Patent GB-820087-A (GB)
Title: Condensation products of phenolic acids and aldehydes
IPC: C07C59/52
Filed: 1956-08-30
Abstract: Condensation products are prepared by reacting an aldehyde with a 4,4-bis-(hydroxyphenyl)-pentanoic acid.  The initial methylol condensates which are formed are converted to polymers by heating. Modified products may be obtained by using the diphenolic acids in combination with other phenols such as phenol, cresols, xylenols, butylphenol, naphthols and bis - (4 - hydroxyphenyl) - isopropylidene.  Catalysts, such as oxalic acid and sodium hydroxide, and solvents may be used.  Formaldehyde is specified as the aldehyde and it may be used in the form of formalin, para-formaldehyde, trioxymethylene, hexamethylene tetramine or a condensation of formaldehyde with certain alcoholic compositions. The condensates are reactive with other materials, particularly epoxides and other phenol-aldehyde condensates.  The reaction products are useful as coatings, adhesives and moulded products. The examples describe condensation between 4,4-bis-(41-hydroxyphenyl)-pentanoic acid and formalin, the products being dissolved in methyl ethyl ketone.  These solutions, sometimes also containing other phenolic resins, are mixed with methyl ethyl ketone solutions of epoxy resins prepared from bis-(4-hydroxyphenyl)-isopropylidene and epichlorhydrin, and the mixture formed into films which are heated at 175 DEG  or 200 DEG  C. Specifications 768,206 and 790,373 are referred to.ALSO:Methylol derivatives of 4,4-bis (hydroxyphenyl)-pentanoic acids are prepared by condensing the acid with formaldehyde in the absence of heat.  For example, 4,4-bis (41-hydroxyphenyl)-pentanoic acid (1 mol.) and formaldehyde (2. mols.) yield the compound <FORM:0820087/IV (a)/1> The phenyl groups may also be substituted, e.g. by alkyl groups, or halogens, and other phenols may be added to the reaction mixture. Specifications 768,206 and 790,373 are referred to.
Patent GB-1127207-A (GB)
Title: Improvements in or relating to tape-playing apparatus
Inventor: LANE NORMAN
Filed: 1966-06-16
Abstract: 1,127,207. Tape recording and playback. BSR Ltd. 6 Sept., 1967 [16 June, 1966], No. 26829/66. Heading G5R. A multi-track tape player or recorder includes a cam arrangement for moving a transducer head across the tape and for operating an indicator to show the position of the head relative to the tape. As shown, a solenoid 29 is momentarily energized by the passage of a metal foil on the tape and, by means of a pawl 28, steps a cam wheel having an axially extending camming surface 23 which moves a pivoted lever 20 carrying the transducer head and a radially extending camming surface which operates a head-position indicator 32 through a cam follower 31.
Patent GB-602390-A (GB)
Title: Means for controlling or retarding mine tubs or other vehicles
IPC: B61H9/00
Filed: 1945-10-15
Abstract: 602,390. Vehicle brakes. KATZ, A. Oct. 15, 1945, No. 26862. [Class 103 (i)] Retarding means for colliery tubs and other vehicles comprises pistons arranged to force liquid through restricted openings and which are driven by star-wheels engaged by the axle or body of the vehicle as it passes. As shown, star-wheels 2, mounted on each side of a casing 5 drive pistons 4 through axles 6, cranks 8 and blocks slidable in guides 22 to which the pistons are secured. The pistons reciprocate in inner casings 10 through perforations in which liquid contained in the casing 5 is thus forced, the effective area of the perforations being adjustable to vary the resistance by an outer perforated casing 11 slidable on the casing 10 and adjustable by a screwed rod 13. The arms of the star-wheels may be provided with hinged or slidable tips 19 adapted to yield to accommodate the passage of a low underframe of a vehicle. In a modification, the casings 10, 11 are dispensed with and the pistons which slidably engage the walls of the casing 5 are perforated. A fixed perforated partition is arranged near each end of the casing and the resistance to the flow of liquid is adjusted by a plate hinged at its upper edge to the upper end of the partition, the extent of its swinging movement away from the partition being determined by a screwed rod.
Patent GB-322508-A (GB)
Title: Improvements in and connected with apparatus for calling attendants
Filed: 1928-09-19
Abstract: 322,508. Bell, F. G. Sept. 19, 1928. Indicating origin of call to servants and other attendants.-In a signalling system for calling attendants wherein the apparatus at each room comprises a call push, an indicating lamp and a resetting device, and the operation of call push causes the lamp to light and to remain lit until the resetting device is actuated, the lamp, lamp fitting, or mounting is utilized as a push in order to dispense with a separate resetting device. As shown in Fig. 2, operation of a call push 8 energizes the electromagnet 4 to attract its armature 6 and operate the contacts 7 which close the circuits of the indicating lamp 9 and distant lamps such as 10. Upon attraction of the armature 6, the lamp mounting 12 is forced outwardly by a spring 13 to bring the flange 16 into engagement with the projection 15 and thereby maintain the lamp contacts 7 closed. Depression of the lamp mounting 12 releases the contacts, the mounting being held depressed against spring pressure by the projection 15. The lamp is provided with a globe having a metallic protection 14. In a modification the lamp fitting may be rotatably instead of slidably mounted. In further modifications, the lamp fitting may cooperate with a latch which locks electromagnetically or manually operated contacts. Furthermore, instead of employing the lamp mounting, the lamp itself may act as the resetting device. In the modification shown in Fig. 5, operation of the call push 8 energizes the electromagnet 4, which locks in a circuit including a contact 18 operable by the lamp mounting. Specification 16424/14 is referred to.
Patent GB-1043009-A (GB)
Title: Method of keeping the thread tension constant on ring spinning and ring doubling frames
IPC: D01H7/18
Filed: 1964-06-29
Abstract: In a ring-spinning &c. frame, where at each spindle the formation of the balloon is prevented by entraining the yarn around the top of the spindle, the thread tension is kept constant by gradually moving the lappet towards the spindle-head during the formation of the package. The incoming yarn is entrained on the top of each spindle and the lappet rail can be raised manually or by the following arrangements. In Fig. 2, (not shown), a cam 12 with a follower attached to the rail is secured to the shaft 10 of the mechanism by which building-movement is imparted to the ring-rail 51.  In Fig. 3 (not shown), the ring-rail is provided with a roll 20 bearing on a rod 19 connected to one of the rolls 18 from which the thread-rail is suspended.