baber/WOPTO huggingface dataset:
Patent GB-768400-A (GB)
Title: Improvements in or relating to well-perforating apparatus
IPC: E21B43/118
Filed: 1955-01-25
Abstract: 768,400. Perforating. WELEX JET SERVICES, Inc. Jan. 25, 1955 [Feb. 19, 1954], No. 2196/55. Class 83 (4). [Also in Group XXI] For perforating the wall of a well in which is longitudinally positioned a tube, a perforating unit of length greater than the diameter of the tube and pivotally mounted in a supporting frame is lowered with the frame through the tube and takes up such a position perpendicular to the axis of the tube when it emerges from the lower end that only one end of the unit extends transversely beyond the tube so that the unit may be raised back into the tube. A number of perforating units 22 are pivotally mounted in opposed pairs of struts 18 interconnected by rings 16 to form an assembly which can be lowered through a tube 14 in the well 11. Each unit 22 on emerging from the tube 14 is turned through a right angle by a spring 33 and has a projection 32 which engages the tube when the unit is passing therethrough. The pivoted axis of the units 22 are angularly spaced. Each unit comprises an aluminium container 24, Fig. 2, housing a charge 27 held in place by a conical member 26. The units are fired by a priming cord 31. In a modification, the units 22 perforate by firing bullets. The Specification refers to U.S.A. Specification 2,543,814, which describes similar apparatus in which the perforating units on emerging from the tube fall into a horizontal position with both ends projecting transversely beyond the tube so that they cannot be withdrawn into the tube.
Patent GB-1487970-A (GB)
Title: Power-assisted steering system
IPC: B62D5/08
Filed: 1975-01-20
Abstract: 1487970 Power assisted steering systems ZAHNRADFABRIK FRIEDRICHSHAFEN AG 20 Jan 1975 [19 Jan 1974] 2295/75 Heading B7H A power assisted steering system, including a pump 5 (105), an accumulator 6 (106), a control valve 2 (102) and a servomotor 7 (107), comprises a further valve 3 or valve pair 103, 203 positioned in the system between the accumulator and the control valve. Rotation of a steering shaft (not shown) causes simultaneous movement of the control valve and the further valve (or one of the further valves 103, 203). The valves are such that the further valve opens to admit fluid to grooves 22, 23 (122, 123) of the control valve prior to the control valve opening one of those grooves to the associated chamber 71, 72 (171, 172) of the servomotor. Supply of fluid under pressure to one or the other of the chambers 71, 72 in a servo cylinder 7 is achieved by movement of a pin 90, a steering shaft causing movement of valve spool 20 which simultaneously causes a ball 92 and member 93 to raise spool 35 from its seat 36. In the system of Fig. 2, rotation of a steering shaft causes simultaneous, and opposite movement of its pins 190, 191, thus causing movement of spool 120 and of one of the spools 135.
Patent GB-553085-A (GB)
Title: Improvements in or relating to means for inserting a resilient sleeve between an inner and an outer member
IPC: B25B27/28
Filed: 1942-02-23
Abstract: 553,085. Resilient mountings. WRIGHT, H. CLAYTON-. Feb. 23, 1942, No. 2349. [Class 108(iii)] In making a resilient sleeve joint comprising outer and inner rigid members 16, 13 and an interposed rubber &c. sleeve 26, the member 13 is mounted in a movable bracket 13 with the sleeve 26 mounted thereon and fixed at its forward and to the reduced part of a plug 28 fitting 13. The bracket 12 is then moved forward by screw thread mechanism to force 13, 26 through a reducing die 2 and into in outer member 16 carried by the die and a die 19 in a The die 19 is fixed by a removable plate 22 engaging a groove 24 therein, so that when it is removed, the die 19 together with the members 16, 26, 13 in assembled condition can be pushed through bracket 21.
Patent GB-173172-A (GB)
Title: Improvements in protector for pneumatic tires
IPC: B60C27/00
Filed: 1921-01-18
Abstract: 173,172. Heneimer, R. H. Jan. 18, 1921. Tread bands, projections, and surfaces. - A series of curved plates 15, connected by side wires 31, 32, are each formed with a stepped aperture to receive a tread stud 21, the enlarged base of which is held by a cup 25 screwed into the plate. The studs are free to rotate in the cups, and the base-portions of the latter engage in undercut recesses 12 in the tyre-cover 11. In a modification, the inter-engaging parts of the studs and cups are formed conical.
Patent GB-251216-A (GB)
Title: Improvements in and relating to delivery tables for machines for treating bottles orsimilar objects
IPC: B08B9/44
Filed: 1926-01-27
Abstract: 251,216. Holstein & Kappert Maschinenfabrik Ph÷nix Ges. Oct. 5, 1925, [Convention date]. Bottles, washing.-An apparatus for feeding bottles &c. to washing-machines comprises an incline 3 up which the bottles are passed by drivers 9 carried by endless chains 10. The bottles are fed on to a table 15 from which they are subsequently transferred to the machine by drivers 23. The table normally is continuous with the incline, but at proper intervals is rocked about a pivot 16 by a link 17 co-acting with a cam 18 on the chain driving-shaft 13 so that the drivers can pass through the gap thus formed and return inderneath the incline to their operative position. The bottles rest between corrugations 6 in the incline.
Patent GB-747376-A (GB)
Title: Plant for the production of sheets and wires from metal powder
Inventor: AKTIENGESELLSCHAFT MANNESMANN
IPC: B22F3/18
Filed: 1954-01-26
Abstract: 747,376. Making wire and sheets. MANNESMANN AKT.-GES. Jan. 26, 1954 [Jan. 28, 1953], No. 2396/54. Classes 83 (2) and 83 (4). Powder metallurgy.-Plant for the production of wire and sheets from metal powder comprises a first rolling mill for compressing the powder, the rollers being of a diameter at least 50 times the roll pass; a sintering furnace disposed after the rolling mill; and at least one further rolling mill disposed after the sintering furnace and having rollers of a diameter at least 50 times the roll pass and preferably between 100 and 1000 times the roll pass. Specification 714,927 is referred to.
Patent GB-325362-A (GB)
Title: Improvements relating to television and like apparatus
Filed: 1929-01-24
Abstract: 325,362. Aspden, R. L. Jan. 24, 1929. Television. - In stereoscopic television or telecinematography, the two sets of pictures are presented as a single series and the eyes of the viewer are controlled so that he sees with each eye only the pictures taken from the corresponding viewpoint. In one arrangement the transmitter comprises means d, e, Fig. 1, for producing the two aspects of the scene &c. ; a selector disc a apertured at f and g to present one aspect at a time to a scanning disc b provided with two sets of scanning apertures h, i, one for each aspect and mounted on the same shaft as the disc a; and a lens j and light-sensitive device k. At the receiver (Fig. 2, not shown) the device k is replaced by a lamp and the two eyes of the observer are placed in positions corresponding to the view-producing means d, e. In one modification the device a is dispensed with and the scanning disc has a spiral arrangement of holes covering only half the disc, and scans each picture separately and alternately, two light-sensitive devices being used; in the receiver optical means are provided for inverting one of the images. In a second modification the object is scanned by two travelling light-spots alternately and a single light-sensitive device. In other modifications a cinema film has alternate pictures of different aspects and is geared to the scanning mechanism; a single spiral scanning disc is rotated at double the speed of the selector disc; the number of alternations per revolution is increased; a cathode-ray transmitter and receiver is used with the selector device; the two pictures are reproduced alternately side by side and viewed through the selector disc; the two pictures are reproduced simultaneously and a double selector device, not operated synchronously with the scanning device, alternately presents the two aspects to the appropriate eyes. The selector device may be arranged to act as the shutter of a kinematograph projector. Specification 298,255 is referred to in the Provisional Specification.
Patent GB-553392-A (GB)
Title: An improvement in or relating to mop heads
IPC: A47L13/24
Filed: 1942-02-25
Abstract: 553,392. Mops. TINKER, J. W. Feb. 25, 1942 No. 2465. [Class 19] A bundle a of strands of yarn tied together at the centre by twine or wire b crossed at diametrically opposite points on the periphery of the bundle is secured to its handle e by a spike or screw c the shank of which passes through gaps formed by separating the turns of the tie b. The head c<SP>1</SP> of the screw preferably bears on a washer d, which may have portions stamped from it to form prongs which engage the bundle between the turns of the tie. One or more pieces of flannel may be inserted between the plate and bundle to serve as polish distributers. The end of the handle e may be grooved to receive the tie.
Patent GB-548197-A (GB)
Title: Producing high quality magnesium compounds from magnesium-containing substances
IPC: C01F5/24
Filed: 1941-02-24
Abstract: 548,197. Magnesium carbonate. OCEAN SALTS (PRODUCTS), Ltd., and ANDERSON, J. H. Feb. 24, 1941, No. 2484. [Class 1 (iii)] Pure magnesium carbonate is obtained from impure magnesium hydroxide slurry containing calcium compounds by treating the slurry with carbon dioxide, preferably under pressure, to produce soluble magnesium carbonate or bicarbonate, separating insoluble matter and treating the solution with pure magnesium hydroxide to precipitate magnesium basic carbonate. Part of the basic carbonate is converted into hydroxide for reuse in the cycle. The carbon dioxide may be employed in sufficient quantity to convert all the magnesium hydroxide into carbonate and to form a certain amount of calcium bicarbonate in addition, this being precipitated from the solution by the addition of a small amount of magnesium hydroxide after which the magnesium basic carbonate is precipitated from the purified solution by addition of pure magnesium hydroxide. The carbon dioxide may also be added in amount insufficient to produce calcium bicarbonate, the precipitation of the pure basic magnesium carbonate then being effected by addition of the pure hydroxide.
Patent GB-1221173-A (GB)
Title: Improvements relating to pens
Inventor: CRESS DAVID ROGER
IPC: B43K8/02
Filed: 1969-01-16
Abstract: 1,221,173. Reservoir pens. PARKER PEN CO. 16 Jan., 1969 [18 Jan., 1968], No. 2596/69. Heading B6Q. A solid rod-like nib is formed of synthetic plastics material comprising a mixture of between 5 and 50% by volume of a polyacetal resin or a polytetrafluoroethylene resin, the remainder being either nylon or polyacetal resin. The wettability of nibs formed mainly with polyacetal resin can be enhanced by surface etching and satinizing. Fig. 2 shows a nib in which the bottoms of longitudinal capillary feed slots 46 taper outwardly in a direction away from the writing end of the nib. In (Fig. 5), longitudinal capillary slots extend the full length of the nib and a circumferential capillary equalizer groove is disposed intermediate the ends.
Patent GB-365795-A (GB)
Title: Improvements in and relating to hair slides or fastenings
IPC: A45D8/16
Filed: 1931-01-27
Abstract: 365,795. Hair slides. BAXTER, C., 43, Ramsden Street, Huddersfield. Jan. 27, 1931, No. 2605. [Class 131.] A hair slide or fastening comprises two members connected at one end by an integral loop a forming a spring hinge, the outer member being curved or arched throughout the whole of its length, which may or may not include a part of the loop, and the inner member arched in the same direction along a substantial part of its length beyond the loop so that' it will lie closely in contact with the outer member when the two are forced together against the action of the spring hinge. The free end of the inner member engages the turned-over end of the outer member to form a securing-device. A clearance c is allowed between the ends to allow for deformation of shape of the members when gripping the hair. Fig. 4 shows suitable cross sections of material for use when making the slides of narrow width. Fig.' 5 shows a modified fastening comprising a snug p. adapted to engage a recess i.
Patent GB-367532-A (GB)
Title: Improvements in or relating to wrist-straps for wristlet watches
IPC: A44C5/20
Filed: 1931-01-27
Abstract: 367,532. Bracelets; attaching watches to wrist ; fastenings. JONES, N. GETHIN-, 360, West Street, Durban, South Africa. Jan. 27, 1931, No. 2697. [Class 43.] In wrist-straps of the type having two complementary portions 6, 8 connected by the interlocking of a stud or knob 9 with one of a series of keyholes 7, the portion 6 having the keyholes 7 is provided at its extremity with a narrow loop 11 adapted to embrace the studded portion 8. A slot 12 in the portion 6 is so associated with the loop that the portion 8 cannot be withdrawn through the loop 11 without moving it angularly inwards. The aperture of the slot 12 is sufficiently large to receive the stud 9 which engages therein and abuts against the edge 11a of the loop unless the portion 8 is moved angularly. The loop 12 may be set at an angle to the portion 6. Hooks 10 may be provided for attachment to a watch.
Patent GB-226994-A (GB)
Title: Improvements in fasteners for casement windows or the like
IPC: E05C3/04
Filed: 1924-02-02
Abstract: 226,994. Lardner, H. W., and Mortlock, A. J. Feb. 2, 1924. Casement fastenings, cockspur type. - In a casement fastener of the cockspur type the attachment plate 1 to which the securing arm 2 is pivoted is provided with a slotted lug or guide 5 in which the operative end of the arm 2 works and which rides on to a boss or roller 9 secured to the slotted plate 10, secured to the window frame, to support the weight of the window and prevent sagging. The corners 8 of the lug 5 are rounded to facilitate the engagement of the Jug with the boss or roller 9. The lug 5 serves both to guide the arm 2 and to avoid straining the pivot 6 when the casement is being opened or closed by the handle part 12 of the arm 2. A second hole 7 is provided for the pivot to enable the fastener to be used on casements opening tn the right or left hand.
Patent GB-1122154-A (GB)
Title: Process for the polymerization of conjugated dienes
Inventor: SUGIURA SHOTARO
IPC: C08F36/04
Filed: 1967-01-18
Abstract: A polymerization catalyst for dienes comprises (1) powdered Zn and/or powdered Cd having electrochemically deposited thereon metallic Co and/or Ni and (2) an organoaluminium compound, e.g. diethyl aluminium chloride.  Component (1) is made by placing metallic zinc and/or cadmium powders in an aqueous solution of a cobalt and/or nickel salt, agitating the mixture and separating off, after after an appropriate time, the resulting solid. The deposition may be effected at various temperatures and the powdered zinc and/or cadmium is preferably of a size which will pass through a 48 mesh Tyler's standard sieve.  The polymerization of dienes, alone or in admixture with other dienes or unsaturated compounds is described, and is effected in a conventional "low-pressure" method, e.g. in presence of a diluent. Exemplified dienes are butadiene and isoprene.  The polymers have a high cis 1,4-structure.ALSO:A polymerization catalyst for dienes comprises (1) powdered Zn and/or powdered Cd having electrochemically deposited thereon metallic Co and/or Ni, and (2) an organoaluminium compound e.g. diethyl aluminium chloride.  Component (1) is made by placing metallic Zn and/or Cd powders in an aqueous solution of a cobalt and/or nickel salt, agitating the mixutre and separating off, after an appropriate time the resulting solid.  The deposition may be effected at different temperatures, and the powdered zinc and/or cadmium preferably passes through a 48 mesh Tyler's standard sieve.
Patent GB-922455-A (GB)
Title: Production of spinnerets
Inventor: COBB JAMES STANLEY
IPC: B21D31/02
Filed: 1962-01-25
Abstract: <PICT:0922455/IV(a)/1> <PICT:0922455/IV(a)/2> <PICT:0922455/IV(a)/3> A method of making a spinneret comprises the steps of punching a tapered capillary partially through a blank, removing excess material from the blank to present a capillary orifice and finishing the capillary by punching a straight wall portion therein immediately adjacent said orifice.  A spinneret blank 12 has a counterbore formed therein with a flat bottom 10, the blank is positioned over a soft plate 16 and a tapered punch is forced into the blank to start the capillary 14.  The penetration of the punch is such that the bottom of the impression is below the lower face 18 of the blank 12.  The excess material is removed by grinding to form an under-sized orifice 20 and a straight punch 22 is used from the face 18 to size and finish the capillary.  The included angle of the tapered punch is between 20 and 40 degrees and is preferably 30 degrees.
Patent GB-825666-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/38
Filed: 1957-01-25
Abstract: 825,666. Electrostatic precipitation. MESSEN-JASCHIN, G. Jan. 25, 1957 [Jan. 27, 1956], No. 2828/57. Class 39(1). [Also in Group XX] An apparatus for charging particles suspended in air consists of a radioactive source 6 carried on an electrode 5, a downstream counter electrode 9, and a ring electrode 10 surrounding the ray cone a for attracting particles which would otherwise deposit on the radioactive source. The source may be an α-or #-ray emitter, e.g. a radium foil of circular or square shape. If the source is in the form of a strip, the ring 10 may be oval or elongated. The disadvantage of using a grid instead of a ring is referred to. The apparatus is used in an electrostatic precipitator including nested cylindrical collecting electrodes 3, 4 and a further perforated counter-electrode 8. The source 6 is within an insulating enclosure 7. Several sources with associated ring electrodes may be disposed side by side.
Patent GB-447552-A (GB)
Title: Improvements in small electric motors
IPC: H01H63/22
Filed: 1935-01-29
Abstract: 447,552. Motors. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, Westminster, and HUMPHRIES, H. E., 61, Rochester Way, Blackheath, London. Jan. 29, 1935, No. 2870. [Class 35] Motors with unwound iron armatures.-In a motor of the type comprising an unwound rotor with salient main and auxiliary poles, a return flux path is provided, the reluctance of which is independent of the position of the rotor. The rotor, which is preferably of the known form shown in Fig. 3, comprising an approximately rectangular flat body 11 with main poles 3, 5 and auxiliary poles 4, 6, is mounted on a spindle 13 and kept in place by a cylinder 21 of magnetic material. Surrounding the cylinder 21 is a soft iron sleeve 23 with a circular flange 22. Adjacent to the flange 22 is an arcuate strip 8<1> of soft iron, forming, with the frame of the machine, a return path for the flux of the field-magnets 1, 2. To keep the cylinder 21 from sticking to the sleeve 23 a layer of non-magnetic material may be interposed.
Patent GB-1391771-A (GB)
Title: Polymerisation process
IPC: C08F10/02
Filed: 1971-12-23
Abstract: 1391771 Polymerisation catalyst BP CHEMICALS INTERNATIONAL Ltd 13 March 1972 [26 Jan 1971 30 June 1971 (2) 23 Dec 1971] 3162/71 30621/71 30622/71 and 2943/72 Heading B1E [Also in Division C3] A catalyst for polymerizing ethylene or a mixture of ethylene and at least one other 1-olefin comprises chromium oxide supported on silica, alumina, zirconia or thoria or composites thereof (e.g. silica-alumina) which is activated by heating to 250 to 1200‹C in the presence of a tetravalent titanium alkoxide (e.g. titanium tetraisopropoxide or titanium tetraethoxide) and a salt in which the anion contains fluorine (e.g. ammonium tetrafluorborate or hexafluorosilicate) and preferably in the presence of air. Reference has been directed by the comptroller to Specification 927966.
Patent GB-607857-A (GB)
Title: Improvements in and relating to torque measuring devices
IPC: G01L3/16
Filed: 1944-02-17
Abstract: 607,857. Dynamometers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 17, 1944, No. 2946. Convention date, Feb. 22, 1943. [Class 106 (ii)] A torque-measuring device comprises two torque reaction members mounted on quill shafts, each quill shaft having a second rotatable shaft running therethrough, means for coupling the outer ends of the quill shafts and of the inner shafts to the device whose torque is to be measured, and means for coupling the inner end of either quill shaft to at least one, preferably to any one, of the other shafts. Each dynamometer is arranged to function for either direction of rotation. The arrangement is such that a driving device may be tested at one end of the set whilst a second driving device is being prepared and/or an earlier driving device is being removed at the other end, and is such that one or both dynamometers may be used to measure the torque of a single driving device. A pair of dynamometers is mounted coaxially on the base plate 75, and is provided with quill shafts 10, 11 adapted to produce a torque reaction in relatively rotatable members 12, 13 which for either direction of rotation through a system of levers and links 93, 92 and 78, 77 produces an upward thrust at point 76 and a downward thrust at point 91 of lever 72, pivoted at 73, the combined thrust being measured at 110, 111. The quill shafts 10, 11 and rotatable torque reaction members 12, 13 are rotatably mounted in pedestals 26, 27 and 28, 29. The quill shaft 10 is splined at its ends 42, 43 and shaft 11 at 44, 45. Rotatably mounted within the quill shafts are second shafts 30, 31, the inner ends of which carry collars 38, 39 splined at 40, 41 so that an internally splined annular member 56 can connect either quill shaft to either second shaft or connect the two quill shafts together, or make other connections according to its position. The annular member 56 is located in the desired position by a spring-pressed plunger 60 engaging in one of a series of notches. Rotatably mounted on the outer ends of the second shafts 30, 31 are coupling elements 46, 47 splined at 50, 51 and carrying slidable internally splined annular members 48, 49 whereby the coupling elements can be connected to the quill shafts. The annular members 48, 49 are located by spring-pressed plungers 69. The outer ends of the shafts 30, 31 are splined at 36, 37 for connection to driving means.
Patent GB-959645-A (GB)
Title: Improvements in or relating to dedusting devices for smoke ducts
Inventor: ANTONIO CRESPI
IPC: B04C5/06
Filed: 1963-01-24
Abstract: 959,645. Centrifugal separators. MEDITERRANEA S.p.A. Jan. 24, 1963, No. 2993/63. Heading B2P. A centrifugal separator for removing dust from smoke comprises a casing 1 having a frusto-conical portion with a downwardly directed apex, a substantially L-shaped inlet duct 2 for connection to a smoke flue, a centrifugal fan 7 located inside the casing at the top of the duct 2, a collecting chamber 10 for the dedusted smoke located below the fan and coaxial with the casing, and an outlet duct 13 connected to the chamber 10 for conveying away the dedusted smoke. The wall 11 of the chamber 10 is sealed around the duct 2 and the chamber is closed at its bottom 12. The draught in the duct is adjusted by an aperture 5 covered by a collar 4. Dust particles separated by the centrifugal effect caused by the fan are thrown against the inclined wall 15 of the casing and slide down to be collected into a container 18 detachable from the casing by a handwheel 19.