baber/WOPTO huggingface dataset:
Patent GB-930509-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: BOOTH GEOFFREY LISTER
IPC: H01R13/28
Filed: 1960-06-17
Abstract: 930,509. Two-part couplings. PAINTON & CO. Ltd. June 6, 1961 [June 17, 1960], No. 21410/60. Class 38 (1). The insulating housings 1, 2 (Fig. 1) of a plug- and-socket connector are each provided with a flange 6 projecting forwardly from the front surface, a part 7 of the flange being inset with respect to the remainder 8 and separated therefrom by a gap 11 such that when two such connectors are engaged with the inset portion of the flange of the one in register with the remainder of the other relative movement in the plane of the adjoining front surfaces is prevented. The flange projects beyond the ends of the contactpins 3 and acts as a guard therefor. The contact pins 3 (Fig. 3) of both halves 1, 2 of the connector are identical and comprise a blade portion 13 which is bent in hairpin fashion as shown and a shank portion 14 having lugs 15 to grip the cable insulation 16 and further lugs 18 which locate the pin in the aperture 4. Lateral displacement of the contact blades 13 is restricted by flanges 24 without turned ends (Fig. 5, not shown). In an alternative arrangement (Fig. 6) the blade 13<SP>1</SP> of each pin has oppositely located lugs 31, 32 which form a spring clip into which the blade of the corresponding contact is inserted and gripped. The tags 35 on these lugs serve to locate the pin. Alternatively or additionally this may be achieved by tongues 36 projecting from the shank 14<SP>1</SP>.
Patent GB-1308021-A (GB)
Title: Light-current switch contacts and switches incorporating them
IPC: H01H1/02
Filed: 1970-05-04
Abstract: 1308021 Coating with ruthenium W C HERAEUS GmbH 4 May 1970 [6 May 1969] 21421/70 Heading C7F [Also in Division H1] A light-current switch contact comprises a backing of magnetic material such as an ironnickel alloy coated with ruthenium by precipitation from the gaseous phase. The ruthenium is precipitated to a thickness of 1 to 30Á in a vacuum of less than 10<SP>-1</SP> mm Hg and preferably less than 10<SP>-4</SP> mm Hg.
Patent GB-871393-A (GB)
Title: Improvements in and relating to safety devices for lifting appliances
IPC: B66B5/24
Filed: 1959-06-23
Abstract: 871,393. Rope brakes. MEDAWAR, A. June 23, 1959 [July 5, 1958], No. 21446/59. Class 78 (2). A rope brake has jaws 2, 3 which are carried by the semi-cylindrical journals 4 in cams formed on links 5, 6, 7, 8, the links being pivotally mounted at 9, 10 on frame 11. The brake is operated either by handle 13 which is connected as shown to cause the links to pivot, or by impact upon abutment 15 carried by frame 11. In use, frame 11 carries the load to be elevated or lowered along rope 1, the jaws being shown closed under the influence of spring 12. The operator operates lifting appliance 14 to cause the appliance to rise up the rope 1 till it presses against abutment 15. The pressure causes jaws 2, 3 to open so that the frame 11 carrying the load is propelled up the rope under the control of handle 13.
Patent GB-1472134-A (GB)
Title: Measuring instrument
IPC: G01D5/04
Filed: 1974-05-15
Abstract: 1472134 Dial gauges TESA SA 15 May 1974 [13 June 1973] 21533/74 Heading G1M A measuring tip 3, Fig. 1, in operation moves a rod 2 up and down under the influence of a return spring 6 connected to an arm 5 extending from the rod and a similar arm 8 has an end 9 moving in a guide 10 to prevent rotation of the rod. A block 30 adjustably fastened to the rod 2 carries an abutment finger 35 which engages an involute cam surface 52 formed as a surface of revolution on an axially adjustable threaded or slidable base 50, Fig. 4, screwed into a support 38 rotatably mounted in bearings 46 in a housing 37 fixed to the instrument casing plate 14. The support 38 has extension arms 39, 42 and a return spring 43 and provides a toothed sector 41 engaging a multiplying gear train 16-21. The spindles of the pinion 18 and the toothed wheel 21 carry pointers (24, 25), Fig. 2 (not shown) and the wheel 21 is subjected to the action of a spiral return spring 22. In screwing the base 50 in or out by using a screw driver in the slot 54 the cam 52 is axially displaced without modifying the contact with the finger 35 whereby the angle made by the tangent to the surface of 52 at its point of contact with and relative to the surface 36 is always zero.
Patent GB-183721-A (GB)
Title: Improvements in filing devices for documents and other articles
IPC: B42F15/00
Filed: 1921-08-16
Abstract: 183,721. Field, J. H. Aug. 16, 1921. Racks.-A filing-device for documents &c. of the type in which a series of containers are supported by side-rails, either independently or in a drawer or container, the side-rails are formed from a rod or wire of resilient material provided with downwardly-bent ends which act as supports to hold the containers at the correct height from the bottom of the drawer. The containers comprise flexible pockets 8 and may be formed from a continuous strip of material, attached at intervals to members 6 which are formed at the ends with holes, slots, or overhanging portions to enable them to be slidably mounted on supporting-rails 2. The rails, preferably formed of steel wire of uniform cross-section, are bent downwardly at the ends to form legs 3, and are connected together to form an endless frame by transversely-extending spacing-bars, formed by bending inwardly the ends 4 which are welded or joined by sleeves 5. The rails are made slightly longer than 'the inside length of the drawer so that when inserted the rails are bowed upwardly to prevent distortion from the weight of the containers. When used in a drawer the side walls of which extend higher than the rails, the upper portions of the legs are bent inwardly so that the rails are spaced slightly from the inner surfaces of the walls. To enable containers of a width substantially equal to that of the drawer to be used, the upper ends of the legs may be bent outwardly to overhang the upper edges of the sides of the drawer.
Patent GB-259004-A (GB)
Title: Improvements in and relating to safety devices for aeroplanes
IPC: B64D17/00
Filed: 1925-08-31
Abstract: 259,004. Barnhill, W. P. Aug. 31, 1925. Hask locks. - A trap door 4 of a box 1 is secured bv a hasp 8 engaged by a staple 9 through which a loop of a long cord 5 is threaded and secured to the side of the box by a breakable string 10. The end of the cord 5 is secured to the hasp, which is thereby pulled off the staple after the withdrawal of the loop.
Patent GB-473446-A (GB)
Title: A process for the manufacture of printing forms by projecting autotypes
IPC: G03F7/00
Filed: 1936-08-07
Abstract: 473,446. Photo-mechanical printing surfaces. TOMLINSON, A. V. (Bekk & Kaulen Chemische Fabrik Ges., Dr.) Aug. 7, 1936, No. 21818. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 10, 1937.] [Class 98 (ii)] Autotypes are prepared by copying a screened image by projection with or without enlargement onto a sensitized colloid layer applied over a varnish coating on a metal support, developing the resulting image, and removing the unhardened colloid and the underlying varnish, the metal support exposed thereby being etched, if desired, and coated with a layer of a metal such as lead preferably by electrolytic deposition. Alternatively, if a support of grained zinc is used, removal of the varnish and the subsequent procedure may be omitted. A suitable varnish for the process consists of a phenol-formaldehyde synthetic resin dissolved in acetone and butanol. The Specification as open to inspection under Sect. 91 describes also a process in which a colloid layer on a metal support is printed upon by projection, developed, and coated with a varnish layer, the colloid and overlying varnish being removed. In a further modification, the application of varnish is omitted, the exposed colloid being further hardened and serving as a printing surface. This subjectmatter does not appear in the Specification as accepted.
Patent GB-700886-A (GB)
Title: Improvements in machines for cleaning bottles and the like
IPC: B08B9/36
Filed: 1951-09-21
Abstract: 700,886. Bottle-washing machines. SEITZWERKE AKT.-GES. Sept. 21, 1951 [Sept. 21, 1950], No. 22127/51. Class 138 (i) A bottle washing machine of the kind in which bottles are washed whilst inverted by an interior brush and in which a series of such brushes is disposed on an intermittently advanced table, has a bottle feeding device comprising a normally closed pincer-like holder, the free ends of the arms of which are adapted to embrace and be displaced by the bottle against spring resistance on its insertion into the machine and to reclose automatically after the bottle has passed through them to be completely inserted into the machine, the said arms being symmetrical about the axis of a brush when the table is at rest between intermittent advances. Bottles 14 are cleaned interiorly and externally by brushes on rotatable rods 12 and a brush 13, respectively, mounted on a table 10 rotated intermittently. Owing to the rotation of the rods 12, the bottles 14 are also rotated. The driving mechanism for the rods 12 and brush 13 is housed within the table. The holder device comprises two arms 15, 16, Fig. 2, pivotable at 17 and 18, respectively, which arms are operatively connected by toothed segments 19, 20, and are maintained in a normally closed position by a spring 23. The whole device is pivotable about a pin 21, Fig. 1, against the action of a spring 22. The free ends of the arms 15, 16 are shaped to enable them to embrace a bottle when inserted therein and are bevelled downwardly. The holder device is supported on the inside of the outer container 25 of the machine on a plate 26. In a modification the free ends of the arms 15, 16 are provided with rotatable rollers having concave surfaces so as to provide a space between the rollers to receive a bottle during loading.
Patent GB-984711-A (GB)
Title: Process for the catalytic conversion of hydrocarbons
Inventor: OELDERIK JAN MARINUS
IPC: C07C5/27
Filed: 1962-06-04
Abstract: In the isomerization, alkylation, disproportionation or polymerization of hydrocarbons as described in Specification 981,311, i.e. in the presence of a catalyst comprising hexafluoroantimonic acid (HSbF6) or a hydrocarbon derivative thereof (RSbF6) as catalyst, the catalyst is diluted with more than 6 volumes of diluent per volume of catalyst; hydrogen fluoride is the preferred diluent, fluorohydrocarbons may also be used.  The diluent may be used in amounts up to 20 volumes per volume.ALSO:Hexafluoroantimonic acid (HSbF6) or a hydrocarbon derivative thereof (RSbF6) can be used as a catalyst, in acid-catalysed reactions, in the presence of a diluent. Specified diluents are hydrogen fluoride and fluorohydrocarbons.
Patent GB-793297-A (GB)
Title: A method of and apparatus for detecting breaks in nuclear reactor fuel rod sheaths
IPC: G21C17/04
Filed: 1956-07-17
Abstract: 793,297. Nuclear reactors. ATOMIC ENERGY OF CANADA, Ltd. July 17, 1956 [July 22, 1955], No. 22145/56. Class 39(4). The coolant from a nuclear reactor is monitored to detect neutron emission from I<SP>137</SP> or Br<SP>87</SP> that would arise from any fuel element sheath failing by perforation. To reduce background of neutrons from N<SP>17</SP> produced by O<SP>17</SP> (n,p.) the coolant is not monitored until a time greater than the half-life of the N<SP>17</SP> has passed after leaving the netron flux in the reactor. When heavy water is used as a coolant, Fig. 2, γ-rays produced by decay of N<SP>16</SP>, the result of O<SP>16</SP> (n,p.) and of Na<SP>24</SP>, the result of A1<SP>27</SP> (n,d.), cause the production of neutrons by photo-disintegration of deuterium. As the heavy water is recirculated, Na<SP>24</SP> has to be extracted by ion exchange, at 205, and the monitoring is carried out on a branch 207, with a delay greater than the half-life of N<SP>16</SP>. The detector, B<SP>10</SP>F 3 , records thermal neutrons, and a jacket 214 of ordinary water moderates the neutrons emitted, without increasing the D(y, n) reaction as would happen in a large vessel containing the heavy water.
Patent GB-1341428-A (GB)
Title: System of carriages running on a fixed guide track
Inventor: GOUTTIERRE JEAN
IPC: B61B3/02
Filed: 1971-04-19
Abstract: 1341428 Railway systems ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI 19 April 1971 [19 Feb 1970] 22200/71 Heading B7L [Also in Division C1] In a system of carriages 1 running on a track 3, for use in cutting or scoring glass, the track is of inverted U-section with the carriages running along rails 6 and each propelled by a motor 2 driving gear-wheels 9 engaging racks 8, there being associated with each carriage a channel 14 in which lays service pipes and cables 12 for the carriage, the pipes and cables extending from a fixed connection point 15 along the channel and then over a group of wheels 16 to an arm 11 of the carriage, the wheels of which the outer two are the largest, being journalled to a carriage 17 in a guideway 18 so that as a carriage 1 is moved along the track 3 its associated pipes and cables are either laid into the channel 14 or drawn out of the channel 14 by the wheels. Fig. 1 shows arms 11<SP>1</SP>, 11<SP>11</SP> and 11<SP>111</SP> associated with three further carriages 1. To prevent excessive tension in cables and pipes 12 a steel cable 26 is passed around the wheels 16 and connected to arm 11 and a stud 27 fixed half way along guide way 18. The various carriages are controlled by a coded guide bar 21 fixed to track 3. The bar may be made of glass and have m+ rows of metal masks 22 arranged in a code and adapted to be explored by a reader consisting of a lamp 23 and photo-electric detectors 24.
Patent GB-1261164-A (GB)
Title: Improvements in or relating to the preparation of pre-sensitized plates
IPC: G03F7/04
Filed: 1970-05-08
Abstract: 1,261,164. Pre-sensitized plates comprising a layer of zein. SOC. TECHNIQUE D'APPLICATIONS CHIMIQUES ET PHYSIQUES. May 8, 1970 [Feb.19, 1970], No.22266/70. Heading G2C. A method of preparing pre-sensitized plates comprising a layer of zein with good shelf life comprises treating the said layer of zein with a partially neutralized aqueous solution of watersoluble bichromate, the pH of which is greater than 5. The layer of zein may, before treatment with the aqueous solution of water-soluble bichromate, be subjected to hydration by soaking in a bath of water to which has been added a wetting agent. The aqueous solution of bichromate may be buffered with an alkaline borate or phosphate e.g. ammonium borate or di-ammoniacal ammonium phosphate. The pH of the bichromate solution is preferably less that 7À5. When the zein is treated with a buffered bichromate solution the progressive evaporation of water does not incur local variations of pH within the zein and does not cause local reactions, during storage, between the zein and the bichromate. Specification 1,012,240 is referred to.
Patent GB-456601-A (GB)
Title: Improvements in drawbar connections for tractors
IPC: A01D34/03
Filed: 1935-08-08
Abstract: 456,601. Vehicle draw-gear. BARRETT, A., Heath Farm, Ullenall, Henley-in-Arden, Warwickshire. Aug. 8, 1935, No. 22368. [Class 103 (v)] A convertible draw-bar connection for tractors adapted either for the direct haulage of wagons, lorries, &c., or for offset haulage of binders or like machines comprises a rearwardly extending arm c attached to the drawbar cap a of a tractor, a double-armed transverse bar d pivoted on the end of the arm a and fitted with terminal pins f for connecting to the shafts or traces of a wagon &c., and a pair of side stays h connectible between the pins f and cap a to form with the bar d rigid structure for offset haulage of a binder j through the intermediary of a pole i.
Patent GB-355907-A (GB)
Title: Improvements in or relating to rectifiers of high voltage alternating electric current
IPC: H02M1/20
Filed: 1930-07-24
Abstract: 355,907. Vacuum and commutator switching arrangements. GOODLET, B. L., Ambleside, Spennithorn Road, Urmston, Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. July 24, 1930, No. 22369. [Class 38 (ii).] In a rectifier system having two series gaps or similarly oriented valves the intermediate or common terminal 3 is connected to earth 4 through a high resistance R of such magnitude that a substantial proportion of the maximum charge on the common terminal member can leak away within a period of time corresponding to one half cycle of the applied voltage.
Patent GB-797782-A (GB)
Title: Improvements in wheel rims having integral tyre bead locks
IPC: B60B25/22
Filed: 1956-07-19
Abstract: 797,782. Vehicle wheels. FIRESTONE TIRE & RUBBER CO. July 19, 1956 [July 28, 1955], No. 22379/56. Class 144 (2). A wheel rim comprises two parts 8, 10 each having a bead seat 16, 26, a side flange 17, 27 and means 20, 30 integral with each bead seat 16, 26 respectively and extending towards the opposite bead seat 26, 16 to hold the tyre beads 28, 18 in position on their respective seats 26, 16. As shown, the said means comprises a series of circumferentially spaced resilient fingers 20, 30 extending generally axially from their respective bead seats 16, 26 to terminate adjacent, and normally on a circle of smaller diameter than, the other bead seat 26, 16, Fig. 2, each bead seat 16, 26 having a conical surface leading thereto which, on assembly of the two rim parts, cams the tips of the fingers extending from the other bead seat radially outwardly to engage and lock the adjacent tyre bead 18 or 28 against its associated side flange 17, 27, Fig. 1. The bead seat and fingers of each part comprise a ring welded to angled bead seat supporting end flanges 15, 25 of conical rings 14, 24 the radially inner ends 13, 22 of which extend radially for bolting together and to a brake drum 9. A sealing gasket 35 is clamped between the two rings 14, 24 to seal the rim assembly, and an inflation valve 36 is provided in the rim 24. On assembly of the rim parts, the fingers 20, 30 of each part intermesh. To assist the radially outward camming of the fingers, the finger ends 21, 31 are bent radially outwardly and the edges of the bead seats at the finger roots may be bevelled to continue the conical surface of the rings 14, 24. The beads may have a high taper angle of about 15 degrees.
Patent GB-531797-A (GB)
Title: Impact wrench
IPC: B25B21/02
Filed: 1939-08-02
Abstract: 531,797. Screwing-up nuts and bolts. CHICAGO PNEUMATIC TOOL CO. Aug. 2, 1939, No. 22416. Convention date, Oct. 14, 1938. [Class 83 (iii)] In an impact wrench having a rotatable impact hammer of substantial mass and moment of inertia with clutch teeth complementary with those on an anvil and driven by a continuously rotating spindle through a connection which permits limited axial movement of the hammer, and in which the hammer moves axially out of engagement with the anvil when the resistance to rotation of the anvil is excessive, the automatic means for moving the hammer axially into re-engagement with the anvil to deliver a rotational hammer blow is effected by centrifugal force. A shaft 16 rotated by an electric or pneumatic motor drives a spindle 17 having a recess 19 into which fits a cylindrical projection 20 on the anvil 21 to which the wrench socket 23 is connected. The spindle drives a rotary hammer 25 through a pair of balls 30 which each engage a pair of right and left hand spiral grooves 31R and 31L in the spindle and complementary pairs of right and left hand spiral shoulders 32R and 32L at the rear end of the bore 33 in the hammer 25. The hammer has a number of teeth 27 adapted to move into and out of driving engagement with teeth 28 projecting rearwardly from the anvil 21. Pivoted on ears 35 secured to the spindle 17 are a pair of centrifugal weights 38 with projections 39 abutting against a plate 40 pressing axially against the hammer 25 through a ball bearing 41 so as to press the hammer towards the anvil. When the nut or bolt becomes seated the resistance of the anvil to further rotation increases abruptly and further rotation of the spindle causes the hammer to be lifted out of engagement with the anvil under the action of the grooves 31R. balls 30, and shoulders 32R. The centrifugal weights are thus retracted. On release of the hammer from the anvil the hammer again rotates and overtakes the spindle due to the action of the centrifugal weights in forcing down the hammer in co-operation with the cam and ball arrangement. When the wrench is operated to loosen a nut &c. the balls 30 ride between the grooves 31L and shoulders 32L.
Patent GB-838979-A (GB)
Title: Improvements in or relating to the production of substantially pure fused silica products from silica sand
IPC: C03C1/02
Filed: 1957-07-16
Abstract: Sand is freed from coloured impurity by mixing with ammonium chloride or other halide, e.g. in an amount of 0.1-5 parts per 100 parts of sand, and heating to a temperature sufficient to volatilize the impurity.  The silica may or may not fuse during the heating. Heating may be effected in a stationary electric furnace or in a rotary furnace heated by electrical or other means.  A hollow billet of fused silica may be produced in a stationary electric furnace. The hot billet may be placed in a mould and air under pressure applied to the interior of the billet so as to produce a fused silica article of a desired shape.
Patent GB-914490-A (GB)
Title: Improvements relating to gas cookers
Inventor: OATLEY ARTHUR FREDERICK
IPC: F24C15/12
Filed: 1960-06-27
Abstract: 914,490. Plate racks. OATLEY TECHNICAL DEVELOPMENTS Ltd. June 14, 1961 [June 27, 1960], No. 22534/60. Class 126. [Also in Group VI] In a gas cooker having a grill, oven or other cooking element 10 with a substantially horizontal and imperforate undersurface 12 mounted above and spaced from the cooker hot-plate 11, plate rack 9 is mounted below the upper cooking element and lies within its plan area. The under surface 12 of the eye level oven or grill may incline slightly upwards and forwards, and the plate rack 9 slides on rails 17 secured by hangers 18 to the oven. The back member 15 of the rack rests on the rails 17 and side members 14 rest on the inturned lower ends 20 of the hangers 18. Stops 23, 24 on the side members 14 engage the ends 20 of the hangers to prevent the plate rack being pulled out or pushed in too far. Hook members 22 secured to the plate rack 9 near the back at each side engage below the guide rails 17 to prevent the rack 9 tilting when it is drawn out. The plate rack 9 can be completely removed by lifting its front edge when it is pulled out.