baber/WOPTO huggingface dataset:
Patent GB-903878-A (GB)
Title: A method and apparatus for coating coiled springs
Inventor: LOVE BERNARD ERIC
IPC: F16C1/00
Filed: 1959-12-21
Abstract: A method of applying a thermoplastic coating to the outer peripheral surface of each convolution of a coiled spring, comprises heating the spring and rolling heated spring over a surface on which is a layer of powdered thermoplastic so as to cause the thermoplastic to adhere to the outer peripheral surface of the convultions of the spring. The springs may be degreased and cleaned prior to coating and may be subjected to a sintering process after coating.  A suitable apparatus, as shown, comprises in combination a furnace 4, means for feeding the springs 6 in single file downwardly into the furnace 4, a slide 10 extending transversely across the lower end of furnace 4, said slide having formed therein an aperture 11 adapted to receive the lowermost spring 6 from the furnace 4, a platform 9 extending in substantially parallel relationship below the slide 10 whereby to support a spring 6 within said aperture 11, means, e.g. ram 12, for reciprocating the slide 10 whereby successive springs 6 will be caused to roll upon the surface of said platform 9 before discharge therefrom, and means for supplying powdered thermoplastic to the said platform 9.  The latter means comprises a hopper 13 at the lower end of which is a drum 14 having a recess p  in the surface and is operated by a pneumatic ram 12 through a link 17 and roller 18 running in a slot 19 mounted on the slide 10.  The thickness of the thermoplastic layer is determined by doctor blade 20.  The coated springs are delivered to a conveyer 22 and the coating is subsequently sintered. <FORM:0903878/III/1>
Patent GB-989541-A (GB)
Title: Improvements relating to safety harness for use by persons in vehicles
Inventor: ROGERS ARTHUR LAURENCE
IPC: A44B11/12
Filed: 1961-12-06
Abstract: 989,541. Safety harness. ASH & ROGERS Ltd. Jan. 21, 1963 [Dec. 6, 1961], No. 43623/61. Heading A3V. [Also in Division E2] The safety harness comprises two shoulder straps 12, 13 anchored to the floor by members 10 (see Division E2). The strap 13, in a double layer, passes under a strap retainer 21 on the back of the vehicle seat, and is secured to the tongue part 23 of a fastener engaging with a part 16. A loop at one end of the strap 12 engages the part 16 and the free end is secured to an adjustment slider 18.
Patent GB-1201697-A (GB)
Title: Rotary plate extruders
Inventor: LEDOUX CLAUDE
IPC: B29C48/47
Filed: 1968-09-13
Abstract: 1,201,697. Centripetal extruders. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 13 Sept., 1968 [14 Sept., 1967], No. 43632/68. Heading B5A. The single and multi-orificed centripetal extruders described in Specifications 1,104,388 and 1,107,487, respectively, are each modified by having grooves inscribed on the facing surfaces of the rotor and stator, such grooves being along curves somewhat offset to curves orthogonal to the path of the material between the rotor and stator, the offset being in the opposite sense to the direction of movement of the material. In practice, the grooves 16 are formed by straight line segments tangential to one or more imaginary circles concentric with the axis of the rotor or stator. There are at least 4 grooves and preferably 12 grooves on either face, each having a depth of at least 0À1 mm. The crosssectional shape of the grooves is preferably that of an asymmetric V the leading face thereof, with respect to the movement of the material, being inclined at a smaller angle than the other, Fig. 6 (not shown). Grooves may also be formed on the base of frusto-conical projection 14 and these are normally of greater depth, e.g. 5 mm., than the others. When fins (17), Fig. 4 (not shown), are provided on the stator and/or fins (18), Fig. 5 (not shown), are provided on the rotor, the grooves may be formed on one or both sides of the annulus within which the fins are situated, depending on the position of the annulus. Several examples are given, the material extruded being P.V.C. with tin glycolate as stabilizer or a mineral wax as lubricant.
Patent GB-1462893-A (GB)
Title: Method for fertile breeding control in female bovine
IPC: A61K31/57
Filed: 1974-10-09
Abstract: 1462893 Breeding control G D SEARLE & CO 9 Oct 1974 [10 Oct 1973] 43670/74 Heading A5B A process for the regulation and control of the time of estrus and ovulation in female bovine comprises (a) administering a progestin in amounts effective to provide an estrus and ovulation blocking period of 4 to 12 days and (b) administering a luteolytic agent selected from at least 5 mg of the estrogens estradiol valerate, estradiol benzoate, estrone or mestranol or at least 30 mg of PGF2alpha at the end of said estrus and ovulation blocking period. The progestin is preferably 17alpha-acetoxy-11#- methyl-19-norpregn-4-ene-3, 20-dione and is suitably administered by implant. The implant may comprise the preferred progestin incorporated in a suitable material e.g. a 2-hydroxyethyl methacrylate-ethylene glycol dimethylmethacrylate copolymer. The luteolytic agent may be an estrogen or PGF2alpha.
Patent GB-1017630-A (GB)
Title: Apparatus for welding thermocouples on the internal wall of a duct having a small cross-section
Inventor: PERRAUD JEAN
IPC: G01K1/14
Filed: 1963-11-05
Abstract: 1,017,630. Welding by pressure. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 5, 1963 [Nov. 7, 1962], No. 43671/63. Heading B3R. An apparatus for welding thermocouples to the inner wall of a tube comprises a fixed electrode to be applied to the outer wall of the tube and a movable electrode carried by a lever pivoted to a support element for positioning within the tube, the support element supporting slide means associated with a gripper for holding the thermocouple against the movable electrode and slide means carrying a cam for co-operation with a wheel on the lever to apply the thermocouple to the inner wall of the tube. The fixed electrode 1 having a part cylindrical surface 7 shaped to engage the tube 2 is adjustably arranged in a body 4 having a sleve 6 of insulating material surrounding the tube and an extension 10 of the electrode is connected to a conductor 11 of the welding supply. The movable electrode 3 comprises a stud 12 screwed into a boss on a lever 14 pivoted at 18 to a semicylindrical support 15 carried on a semicylindrical insulating member 16. An extension 19 on the lever provides a housing for a wheel 20 for co-operation with a ramp 22 having two slopes 23, 24 mounted on a semi-cylindrical slide 25 within the support 15. A gripper 28 for holding the thermocouple comprises a U- shaped stirrup pivoted to the shaft of the wheel 20 and having a pair of flexible jaws, the gripper being actuated by a rod 37 guided in the lever 14 and secured to a slide 41 in the slide 25. A semi-cylindrical rod 47 is connected at one end to the lever 14 by a flexible conductor 48 and at the other end to the current supply. The end of the support 15 is secured to a cylindrical frame 50, Fig. 9 (not shown) and the rod 47 is connected to a flexible conductor 56 passing through the frame. The slide 41 is extended as a tubular member guided by the frame and connected by a pin-and-slot device to a ring member 60 and the slide 25 is extended by a tubular member guided by the frame and connected to a sleeve 72 pressed by a spring 76 to urge the inner electrode against the wall of the tube. A knob 84 connected to the sleeve 72 is provided to move the slide 25 against the action of the spring 76. In operation with the slide 25 pushed forward and locked by a latch 86 the ring 60 is operated to bring the gripper above the stud 12, the thermocouple to be welded is inserted in the gripper, the device is inserted into the tube and the fixed electrode 1 is tightened on to the tube. The latch 86 is disengaged and the slide 25 is moved by the spring 76 to cause the ramps 23, 24 to raise the wheel 20 and thus the electrode 12 against the thermocouple. The ring 60 is actuated to release the gripper 28 and welding current is passed. An hydraulic device for actuating slides 25 and 41 may be provided.
Patent GB-910361-A (GB)
Title: Production of molybdenum trioxide
IPC: C01G39/02
Filed: 1960-12-21
Abstract: Molybdenum trioxide of high purity is prepared by suspending finely-divided molybdenum trioxide and associated impurities in an atmosphere of at least 1800 DEG F. whereby the molybdenum trioxide is sublimed substantially instantaneously, and then separating the sublimed molbdenum trioxide from any entrained nonvolatile impurities.  A preferred embodiment is characterized by a single flash oxidation - sublimation step wherein finely-divided particles, i.e. particle size less than 20 mesh of impure molybdenum disulphide are oxidized and sublimed while in suspension in an oxidizing atmosphere in a furnace at a temperature of at least 1800 DEG F.  In the figure, furnace 1 is lined with a refractory <PICT:0910361/III/1> material 4 capable of withstanding temperatures in excess of 2500 DEG C. and the furnace has a baffle 12 of silicon carbide or other heat resistant material, the passageway 13 allowing exit of gases which include the products of combustion, excess air, the desired molybdenum trioxide in vapour state and various volatile impurities. Finely divided molybdenite concentrates are fed to the furnace by 14 and 15.  A burner nozzle 20 for introducing heat into the furnace is placed in opening 8 and delivers a hot flame which may be a mixture of natural gas and air, oil and air etc. Hot air can also be introduced by means of lines 21 and 22 in the openings 7 and 9 respectively; 23 and 24 being means for introducing the air into the furnace in a turbulent manner.  The solids removal chamber 2 may comprise baffles 27, 28 and 29 of heat resistant material.  Small particles of solid material which pass the baffles 12, 27, 28 and 29 are removed by filtering element 30 which is preferably made of ceramic fibres and is supported by structure 31 which permits passage of hot gases.  The hot gases pass through the filter 30 at a temperature of at least 1800 DEG F. and pass through chamber 35 into duct 36 to the bag filter house 3.  After passage through the filter the gases are cooled to below 1200 DEG F. causing solid MoO3 to condense and this is collected at 39.  The impurities in vapour form pass through collecting bags 37 and are removed by blower 38.
Patent GB-1314582-A (GB)
Title: Electrical resistors
IPC: H01C7/00
Filed: 1970-04-29
Abstract: 1314582 Resistors R E CADDOCK 29 April 1970 [30 April 1969 18 July 1969] 44213/72 Heading HIS A power resistor as described in the parent Specification 1,314,581 is claimed wherein the resistance element, Fig. 2, comprises conductive traces 11, 12 contacting an annular resistance layer 2 the traces having terminals 13, 14 position in a gap in the layer 2. Terminal and mounting features &c. disclosed in the parent case may be applied to this resistor. Alternatively as shown in Fig. 6 the resistance element 47 carrying the contacts and resitive layer 46 may be secured to the base-plate 41 by a C ring 44.
Patent GB-1370661-A (GB)
Title: Process for preparing suspensions of aggregates comprising techne tium-99m sulphur and albumin
IPC: C03C17/25
Filed: 1971-09-22
Abstract: 1370661 Radioactive materials E R SQUIBB & SONS Inc 22 Sept 1971 [23 Sept 1970] 44252/71 Heading G6R A suspension of macroaggregates containing Tc99m, sulphur, and denatured albumin is prepared by reacting a sulphur-producing reagent with an acid in the presence of Tc99m to produce a colloidal solution or suspension of a compound or complex of Tc99m and sulphur, adding denatured albumin, adjusting the pH to the isoelectric point of the albumin to precipitate aggregates and heating so that the aggregates have a uniform size of from 10 to 100 microns. Suitable sulphur-producing agents are H 2 S, and Na, K, and Mg thiosulphates; the pH of a solution of a thiosulphate may be maintained above 7 by adding Na or K phosphate, NaOH or KOH; or NaHCO 3 , and then mixed with a solution containing Tc99m. The acid may be HCl, H 2 SO 4 , or HNO 3 . Denatured albumin can be prepared by heating normal human or animal serum albumin, adjusting the pH to 5-6 to form a precipitate, dissolving the precipitate in a base and adjusting the pH to 7-8. The suspension may be prepared in a sterile condition and used as a diagnostic agent for injection into a patient, followed by screening the lungs.
Patent GB-1286106-A (GB)
Title: Improvements in or relating to strong-boxes
Inventor: HEINRICHS HEINZ GERD
IPC: E05G1/00
Filed: 1969-09-08
Abstract: 1286106 Strongboxes; securing strongboxes H G HEINRICHS 8 Sept 1969 44280/69 Headings E1A E2X In a strongbox adapted to be secured to a wall 11 or the drawer of a desk by bolts or screws passing through the base 1 thereof the said bolts or screws are only accessible from within the box since the cover 2 thereof engages over the base 1. The box is also provided with a concealed hinge 12, a combination lock 4 and, if desired, a hinged stay 18.
Patent GB-1284294-A (GB)
Title: Retractable ball-point pens
Inventor: WANG DASHEN
IPC: B43K27/08
Filed: 1969-09-08
Abstract: 1284294 Retractable ball-point pen/fountain pen combination D WANG 8 Sept 1969 44335/69 Heading B6P A rotary retracting mechanism for a ball-point pen comprises an internally-threaded cylinder 8 mounted for non-axial rotational movement in the pen barrel 7, and an externally-threaded, hollow, refill holder 9 mounted for axial non- rotational movement in the pen barrel 7. A tip portion 12, which is threaded onto the cylinder 8 and secured thereon by adhesive, is rotated relative to the barrel 7, thereby rotating the cylinder 8 to project and retract the refill 11. The flange 8a on the cylinder prevents axial movement thereof, and a flange 9a on the holder 9 co-operates with a complementary shaped inner barrel surface to prevent rotation of the holder 9. A stopper 10 limits the extent of retraction. A fountain pen is screwed into the other end of the pen barrel 7.
Patent GB-874870-A (GB)
Title: Electronic apparatus for comparing and sorting data
IPC: G06F7/02
Filed: 1959-12-31
Abstract: 874,870. Comparing and sorting digital data. HUGHES AIRCRAFT CO. Dec. 31, 1959 [June 2, 1959], No. 44461/59. Class 106 (1). In apparatus for sorting binary numbers, two numbers are fed simultaneously, most significant digit first to two input leads, and compared, the higher number being passed to a "high" output lead and the lower number to a " low " output lead. The number A supplied to a terminal 10 is normally applied through an inverter 19, " nor " (i.e. " not or ") gates 21, 23 and an inverter 25 to a "high" output terminal 26, the number B supplied to a terminal 11 being normally applied through " nor " gates 13, 14 to a " low " output terminal 15. Corresponding digits are compared by " and " gates 35, 37, no action occurring as long as corresponding digits are the same. If the first digit difference is such that an A digit is " 1 " and a B digit is " 0 " the gate 35 is opened to set a bistable flip-flop 30 which changes over to inhibit operation of a second or " exchange " flip-flop 32. If the first digit difference is such that an A digit is " 0 " and a B digit is "1," however, the gate 37 is opened to set the exchange " flip-flop 32 which prevents operation of the flip-flop 30 and also supplies a " 1 " level signal to " nor " gates 13, 21, so that the terminal 10, which carries the number A is latched through the gates 12, 14 to the " low " output 15 and the terminal 11, which carries the number B is latched through the gates 22, 23 to the " high output 26. In alternative embodiments, the nor " gates are replaced by " nand " (i.e. " not and ") gates or by a combination of " nand " and "nor" gates (Figs. 2, 3, not shown). In further modifications (Figs. 5, 6, not shown), binary words to be sorted have a 5-digit "control number " portion and sorting is under the control of this portion of the words only, a flip-flop equivalent to 30, Fig. 1, being set at 5th digit time if an "exchange" flip-flop 32 has not been previously set.
Patent GB-914110-A (GB)
Title: Improvements in or relating to containers and sealing members therefor
IPC: B65D53/04
Filed: 1960-12-28
Abstract: 914,110. Stoppers. HERTER, W. J. Dec. 28, 1960 [Dec. 28, 1959], No. 44477/60. Class 125(3). A sealing washer 1, Fig. 4, integral with or fitted into a capsule or stopper, is provided with a hollow frusto-conical rib 2 adapted to engage a conical section groove 5 in the neck of a container 7. In Fig. 4 the washer is of a plastic material and enclosed by a capsule 8 secured on the neck e.g. by a bayonet fitting or screw-thread. In Fig. 5 the washer 1 forms part of a plastic stopper 10 fitting into the neck of the container and is provided with two hollow ribs, 11, 3, engaging grooves 5, 9.
Patent GB-1369005-A (GB)
Title: Controlling a high pressure reactor
IPC: C08F2/00
Filed: 1971-09-24
Abstract: 1369005 High pressure polymerisation apparatus; controlling polymerisation BADISCHE ANILIN- & SODA-FABRIK AG 24 Sept 1971 [25 Sept 1970] 44586/71 [Also in Division C3]  High pressure polymerisation is carried out in a tubular reactor by a process wherein the pressurised polymerisation zone is subdivided at least once and short-duration decreases in pressure are carried out in only one of the subdivisions of the zone, the pressure being kept constant between the decreases in pressure. The decreases in pressure free the reactor walls from polymer deposits. In the apparatus shown, reaction mixture compressed in I and preheated at II passes to high pressure reaction zone (A+B), optionally for mixture at M with the same or a different reaction mixture introduced via IA, IIA, IIIA, the reaction zone PZ being sub-divided by pressure maintaining valve(s) 12, 14 into zone(s) A, A' where the pressure is maintained substantially constant and zone B in which the short duration decreases in pressure are produced by operation of let-down valve 13.
Patent GB-1096089-A (GB)
Title: Apparatus for removing gases from liquids
IPC: A01J11/04
Filed: 1966-10-07
Abstract: 1,096,089. De-gassing. ST. REGIS PAPER CO. Oct. 7, 1966 [Oct. 7, 1965], No. 44828/66. Headings B1M and B1T. In an apparatus for the removal of dissolved gas from a liquid, the liquid enters tank 16 (Fig. 1) through perforated diffusing cylinder 61, rises up inside movable cylindrical partition 11, overflows the partition 11, and leaves via conduit 65. Float 58 opens gas escape valve 26 (Fig. 3, not shown) when gas collecting in the top of tank 16 forces the liquid below a certain level, and compressed air can be introduced through filter valve 25 (Fig. 2) when necessary, to maintain a free space at the top of tank 16. Portion 11 may have a bottom section that can be raised for cleaning purposes by pneumatic valve 70 (Fig. 4, not shown). If the liquid does not readily release the gas; the liquid may be sucked through the apparatus by a suction pump connected at outlet 65, and suction also applied at valve 26. Filter valve 25 (Fig. 2) comprises filter disc 34 perforated disc 33, and spring poppet valve 27 on the outlet side of valve 25.
Patent GB-1531065-A (GB)
Title: Percussive hydraulic drill
IPC: E21B1/38
Filed: 1976-11-02
Abstract: 1531065 Percussive drill R MONTABERT 2 Nov 1976 [4 Nov 1975] 45594/76 Heading B4C A percussion tool comprises a striking piston 3, a tool 4, a tool retaining piston 6 slidable in tool casing 5, and a chamber 9 defined by the casing and a face 10 of piston 6 facing away from striking piston 3, chamber 9 being connected to a source 13 of incompressible fluid by a line 12 containing a non-return valve 14 and to a reservoir 17 by a line 16 containing a pressure relief valve 18. Should tool 4 need to be extracted from a workpiece piston 6 is urged towards striking piston 3 by the fluid in chamber 9 and thereby frees the tool.
Patent GB-1014620-A (GB)
Title: Purification of metals
Inventor: BILLS PATRICIA MARY
IPC: C25C3/34
Filed: 1963-11-19
Abstract: Iron is desulphurized by electrolysis applied to a molten pool of iron having a supernatant layer of a metal chloride slag, e.g. BaCl2 or CaCl2.  A little lime may be added. Preferably the CaCl2 is dehydrated in a pre-electrolysis stage, and the process is effected at 2.5- 3 V. in an inert atmosphere, e.g. nitrogen.  A table is given of a range of current densities, temperatures &c. giving final S-content down to 0.003%.
Patent GB-1383578-A (GB)
Title: Line protection for electric circuits
IPC: H01T4/10
Filed: 1972-10-05
Abstract: 1383578 Protective arrangements RELIABLE ELECTRIC CO 5 Oct 1972 [6 Oct 1971] 45878/72 Heading H2K [Also in Division H1] A line protector, e.g. for telecommunication equipment, comprises a line circuit with interconnected line terminals 25, 29, a further circuit extending from the line circuit to an earthing terminal (not shown), the further circuit comprising an earthing strip 45, an insulating strip 52 normally interrupting the further circuit, and over-voltage responsive means effective for melting the strip to close the further circuit to earth the line. The over-voltage means is a module having a conducting plug 62a biased by a spring 84 towards a conducting cup 64a, but normally restrained by a solder pellet 76a, and a spark gap assembly having carbon electrodes 68a, 70a. Over-voltage transients on the line merely cause arcing at the spark gap, but under prolonged overvoltage conditions, the continuing arcing causes the pellet 76a to melt and enable the spring 84 to move the plug 62a into contact with the cup 64a to complete the earthing circuit. In the event of prolonged overvoltage of relatively low magnitude such that the solder does not melt, the heating of the carbon electrode 70a causes the strip 52 to melt so that the earthing strip 45 is brought directly into contact with the line circuit. The line circuit may include fixed spring blades 86, 87 co-operating with a moving printed circuit board 90 having contact areas 88, 95 interconnected by the heating coil 97 of a thermal latch device. This device comprises a fixed pawl 200 co-operating with a ratchet wheel 192 on a spindle soldered to a sleeve 180 in the board 90. In the event of overcurrent, the solder melts and the wheel turns to release the board to open the line, to earth it and to complete an alarm circuit. A single housing may enclose two such protectors, common earthing and alarm terminals being provided.