baber/WOPTO huggingface dataset:
Patent GB-972418-A (GB)
Title: Improvements relating to typewriters
IPC: B41J32/02
Filed: 1963-05-13
Abstract: 972,418. Ink ribbon mechanisms. SIEMENS & HALSKE A.G. May 13, 1963 [May 14, 1962; May 18, 1962], No. 11767/63. Heading B6F. A typewriter having a movable type hammer carriage 8, Fig. 1, is provided with an endless ink ribbon 1 carried by guide rollers 2 mounted on the chassis of the typewriter and is advanced and inked by a combined drive and inking roller 3 on carriage return. The drive roller 3 is fixedly mounted on a shaft 4, having rotatably mounted thereon a pulley 5 carrying a cable reciprocating the type hammer carriage 8 in the letter-spacing and carriage return direction. For maximum wear the ribbon is stationary during typing and is advanced in unison with the carriage during carriage return so that no relative movement occurs between the ribbon and the ink ribbon guide fork 9. Advance of the ribbon is effected by torsion spring 6 driving the shaft 4 during carriage return the spring 7 acting as a brake during typing to restrain the ink ribbon from moving, whilst the spring 6 is being uncoiled during the carriage movement in the letter-spacing direction. In another embodiment in Fig. 2, the guide fork 9 is replaced by a fork assembly comprising a pair of leaf spring fork arms 13 having ribbon retaining lugs 17 and a pair of guide rollers 14, carried on a bracket 12, pivotally mounted on a shaft 16.
Patent GB-1037105-A (GB)
Title: Whirl type burners
IPC: F23D14/24
Filed: 1963-05-13
Abstract: 1,037,105. Burners. ZAVODY V. I. LENINA PLZEN NARODNI PODNIK. May 13, 1963 [May 11, 1962], No. 18770/63. Heading F4T. A whirl-gas burner comprises a central gas jet 2 and air jets 18, the effective cross-sectional areas of which are controlled, to supply air at constant velocity, by plugs 3 mounted on a ring 4 which is axially moved by rods 5 and hand wheel 7. The air jets 18 are formed in a bottom flange of the gas jet 2 and their axes are skewed to rotate the air about the burner axis into the gas stream. In a modification, Fig. 4 (not shown), the gas jet has an externally grooved cone mating with an internally ledged cone 20 to form air gaps lying tangentially to an imaginary circle concentric with the burner axis. The gas jet 2 is directly moved by a threaded hand wheel 7 and has a flexible connection to a gas supply.
Patent GB-842922-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J5/00
Filed: 1957-06-14
Abstract: The invention comprises steroidal dihydroperoxides in which the dihydroperoxide group is in the 3- or 17- position or, in the case of a steroid free from an acyl group in the 21-position, the 20-position having the general formula <FORM:0842922/IV(b)/1> n being 1, 2 or 3, and R and R1 being molecule proportions of the steroid neighbouring the 3-, 17- or 21-position, esters of said dihydroperoxides having the general formula <FORM:0842922/IV(b)/2> wherein n R and R1 have the above significance and R11 is an alkyl aryl, aralkyl group or the residue of a polyacid of which one carboxy group is esterified with the hydroperoxide group such as an ester group derived from succinic acid and tetroxanes of said dihydroperoxides having the general formula <FORM:0842922/IV(b)/3> wherein n, R and R1 have the above significance, and processes for the preparation of steroidal dihydroperoxides by reacting keto-steroids having a keto group in the 3- or 17- position or, in the case of a steroid unacylated in the 21- position, the 20- position with hydrogen peroxide in an anhydrous solvent in the neighbourhood of umbient temperature, e.g., in the presence of a catalytic amount of concentrated hydrochloric acid, for the preparation of esters of steroidal dihydroperoxides by treating the said steroidal dihydroperoxides with an acylating agent in the neighbourhood of ambient temperature, and for the preparation of the above steroidal tetroxanes by reacting the said steroidal dihydroperoxides with a mixture of acetic acid and sulphuric acid in the neighbourhood of ambient temperature.  The keto-steroid reactant may be of the pregnane, androstane or estrane series and may contain hydroxy groups which may be esterified or otherwise protected by easily cleavable protective groups, protected keto groups, such as enamines, acetals and mercaptals halogen atoms or double bonds. The ketosteroid reactant may contain two or three keto groups capable of being converted into dihydroperoxide groups so that the end product may be a mixture of two or more different steroidal dihydroperoxides which may be separated by fractional crystallization.  In the examples the following compounds are prepared:-The 20-dihydroperoxide of 3 a -acetoxy-etiochloone -11, 20-dione, 3 a -acetoxy-pregnan-20-one, and 3 a -acetoxy -11 b -hydroxy-pregnan-20-one, the 17-dihydroperoxide of 3 a -acetoxy-etiochloone -11, 17-dione, estrone acetate and equiline acetate, the 3- and 20-dihydroperoxides of progesterone, the 3-dihydroperoxides of 21-acetoxy-pregnane -3, 11, 20-trione, desoxycorticosterone and testosterone, the diacetate of the dihydroperoxide of 3a -acetoxy-pregnane -11, 20-dione, and bis (3 a -acetoxy-pregnane-11-one)-20-tetroxane.  The 17 - acetate of eliocholon - 17 - ol and of androstan - 17 - ol are prepared by treating the 20-dihyroperoxides of pregnan -20-one and allopregnan -20-one respectively with formic acid.  In an example 3 a , 17b -diacetoxy-etiochloan-11one is prepared by treating the 20-dihydroperoxide of 3 a -acetoxy-pregnane -11, 20-dione with formic acid.
Patent GB-683038-A (GB)
Title: An improved liquid fuel heating unit for hot water systems
IPC: F24H1/26
Filed: 1950-06-28
Abstract: 683.038. Supplying liquid fuel to burners. DRAFFIN BROS. PROPRIETARY, Ltd. July 28, 1950 [Aug. 4, 1949; Nov. 30, 1949], No. 18931/50. Class 75(i) [Also in Group XIII] In a water heater (see Group XIII) heated by a liquid-fuel burner, the fuel is supplied from a tank 8 to the burner 13 through a level-determining tank 21, a valve 31, and a pipe 16. Flow from the tank 8 to the tank 21 is through a bird-fountain feed comprising an outlet with an associated poppet valve 23 which is spring-urged to close but is held open by contact of its spindle 23a with a raised platform 24 in the tank 21. The tank 21 has an overflow pipe 27 which engages with a cranked pipe 28 which telescopes into an outlet pipe 29 and is spring-pressed upwardly into engagement with the pipe 27. The valve 31 comprises a body containing an upper cylindrical chamber 32 communicating with the tank 21, a lower cylindrical chamber 33 communicating through the pipe 16 with the burner, and a stem 34, the lower part of which is hollow. and slides in the lower chamber. The stem is spring-pressed downwardly so that its conical shoulder 36 engages a conical seating in the body 31. When the stem is raised by a Bowden cable or other link connected to the eyelet 41, fuel can flow through orifices 38 in the stem 34. The burner 13 and tank 21 are carried by a platform 11 which is removably mounted in the casing 1 by the engagement of longitudinally slidable rods 43 attached to the platform, in holes in brackets 51 on the casing. The rods are operated by the rotation of a yoke 46 the ends of which carry pins engaging in two channel-sectioned bars which each connect a pair of the rods 43. The tank 8 is detachably held in the casing 1 by the engagement of hooks 10 in slots in the casing.
Patent GB-734640-A (GB)
Title: Buoyancy apparatus
IPC: B63C9/04
Filed: 1953-07-09
Abstract: 734,640. Rafts. DAVIDSON, H. M. July 9, 1953 [July 19, 1952], No. 19027/53. Drawings to Specification. Class 113 (1). [Also in Group XXI] In a buoyancy apparatus such as a float or life-raft comprising a closed container having a reinforcing wrapping around the container, the wrapping is saturated with a waterproof resin and a plastic made up of minute individually sealed cells fills the container. The container is formed of waterproof plywood and the wrapping of glass fibre cloth impregnated with a polyester resin. The plastic is an expanded thermoplastic polystyrene. A relatively large hole, spaced from the sides of the container, extends therethrough from top to bottom.
Patent GB-274862-A (GB)
Title: Improvements in and relating to the making of lace and the like
IPC: D04C1/00
Filed: 1927-07-18
Abstract: 274,862. Ostertag, G., (trading as Dittmar & Ostertag). July 20, 1926, [Convention date]. Lace.-Fabric elements b strung together to form a denticulate tape, which can be bent about to form a design, are connected by ornamental links or stitches to produce a piece of lace, suitable for use as a curtain, cover, dress-insertion &c.
Patent GB-427937-A (GB)
Title: Improvements in and relating to cooling units for refrigerating systems
IPC: F25B39/02
Filed: 1934-06-27
Abstract: 427,937. Refrigerating. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 27, 1934, No. 19034. Convention date, June 27, 1933. [Class 29] Compression machines.-In a cooling unit of the kind comprising upper and lower headers 21, 23 connected by cooling tubes and having means for injecting liquid refrigerant into the lower ends of the tubes together with means for returning liquid refrigerant from the upper header to the lower header, the cooling tubes 24 are formed as plane sinuous loops. The loops are each enclosed by a flat container 30 filled with a negative heat-storage substance such as glycerine or brine solution. Stamped zigzag plates 33 are welded on each side of the containers. The containers are welded to the top and bottom plates of the casing 34. The fan 43 and its motor are secured to the detachable front plate 44 of the casing. Liquid refrigerant flows from the float chamber of the condenser through a pipe 25 to tubes 26 projecting into the lower ends of the cooling tubes, and vaporized refrigerant is withdrawn by the compressor from the upper header through a pipe 27.
Patent GB-712492-A (GB)
Title: Improvements in or relating to driving devices for rollers such as printing cylinders
IPC: B41F13/14
Filed: 1951-08-14
Abstract: 712,492. Linkwork for conveying rotary motion. HARRISON, G., and THRISSELL ENGINEERING CO., Ltd. Aug. 13, 1952 [Aug. 14, 1951], No. 19141/51. Class 80 (3) [Also in Group XVI] Cylinder driving mechanism. A driving device for a printing cylinder of the kind allowing angular adjustment thereof comprses a driving gear 12 mounted on a shaft 5 co-axial with the cylinder 1, three equally spaced pins 13 secured to the face of the gear 12 being connected by links 14 to pins 15 secured to the face of an eccentric transmission disc 16. A gear wheel 17 carried on the disc 16 meshes with internal teeth on a ring gear 4 secured to the driven member 3 on the cylinder shaft 2. The eccentric disc 6 is carried on a spindle 8 housed in an eccentric bore 7 in the shaft 5. A worm gear 9 secured to the shaft 5 is rotatable by a manually operated worm 10 mounted on brackets 11 on a bearing 6 to move the spindle 8 and disc 16 in a circular path about the cylinder axis, this movement being allowed by the links whose length is equal to the eccentricity. Rotational displacement of the shaft 5 thereby causes angular adjustment of the driven member 3 relative to the driving gear 12.
Patent GB-613697-A (GB)
Title: Harrowing machine
IPC: A01B35/18
Filed: 1946-06-27
Abstract: 613,697. Agricultural implements. FREUND, J. June 27, 1946, No. 19205. [Class 6 (i)] A rotary harrowing implement comprises a frame 1 carrying pronged wheels 8 and fixed crescent-shaped coulters 13 on its underside and pneumatic-tyred wheels 27 on its upper side and is invertible for transport so that the wheels run on the ground while the tools are inoperative. The coulters are mounted on a cross-piece 4, rotatable in the frame, which carries a socket 5 for a shaft 18 by which the implement is drawn along, the shaft being normally retained at an angle to the frame by a hinged connecting' member 22, 21<SP>1</SP> which engages pins 25, 26 on the shaft. When turning the implement at the end of a furrow, the implement is tilted forward and is swivelled round on the coulters. For transport, the harrow may be inverted so as to rest on the wheels 27, the shaft 18 and cross-piece 4 being then folded back through 180 degrees. The shaft may be retained in this latter position by engagement between the pin 26 and an eyelet 23 on the connecting member 22, 22<SP>1</SP>.
Patent GB-280142-A (GB)
Title: Improvements in coaster hubs for bicycles
IPC: B62L5/04
Filed: 1927-07-20
Abstract: 280,142. Konig, F., and Kr³mmel, W. July 20, 1927. B a c k - pedalling brake and free-wheel arrangements. - A brake-operating ring which is displaced axially by the chain sprocket and engages pawls on the non- rotating brake ring is also adapted to move the brake ring axially so as to engage conical elements on split expansible r ings which are wedged between the brake ring and a brake rim on the hub. The chain sprocket 5 is mounted by a screw connection on the brakeoperating ring 11 which is rotatable on the hub. During forward pedalling, the chain sprocket and the brakeoperating ring clamp between them a ring 6 fixed to the hub, the abutting surfaces of the rings 11 and 6 being further provided with ratchet surfaces to prevent slip. When free-wheeling these ratchet surfaces automatically disengage. Back pedalling moves the brake-operating ring 11 to the right and its rotation is then checked by the engagement of teeth on its face with pawls 17 on the non-rotating brake ring 16. The conical surface 23 on the brake ring then engages the split expanding ring 22 which is fixed to the hub-brake ring 9. This ring 22 expands and thereby expands a second split ring 19 fixed to the brake ring 16 until it engages a braking surface formed on the interior of the rim of the hub brake ring 9. A spring 24 tends to disengage the braking surfaces. In a modification, oneway roller clutches are arranged in the interior of the chain sprocket.
Patent GB-474307-A (GB)
Title: A new or improved machine for preparing grain for milling
IPC: B02B1/06
Filed: 1936-07-11
Abstract: 474,307. Damping grain. LEGGETT, A., and HALL, T. W. July 11, 1936, No. 19301. [Class 58] [Also in Group XVIII] Grain falling from a hopper 4 strikes the blades 2 of a rotor 1 and then is conveyed through a duct 3<2> by a conveyer 31. The rotor 1 drives, through a chain wheel 6, a shaft, 9, carrying a disc 10 on which are mounted cups 11, these cups being immersed by the rotation of the disc in water maintained at a constant level in a tank 12. The water lifted by the cups is normally discharged into a catch trough 14 connected by a pipe 15 to the duct 3<2> for the grain. The quantity of water delivered is thus proportional to the feed of the grain. To modify the quantity of water delivered to suit varying types of grain the cups are individually adjustable from one side to the other of the disc so as to discharge either into the trough 14 or into a trough 16 delivering to waste or back into the tank. Spring locking devices are provided to hold the cups in their adjusted positions.
Patent GB-1148385-A (GB)
Title: Improvements in or relating to crates
Inventor: HAWKINS JOHN
IPC: B65D21/02
Filed: 1965-07-04
Abstract: 1,148,385. Bottle crate. INDUSTRIAL MOULDINGS Ltd. 8 June, 1966 [4 July, 1965], No. 19337/65. Heading B8P. A rectangular bottle crate of substantially 13 : 10 length/width ratio is formed with a planar base carrying a series of 12 integral external projections that extend below the base to a plane parallel with it. The projections, which in plan view take the form of rectangular areas, are arranged in four rows of three symmetrically about the short axis of the base, and their size and distance apart are such that two layers of like crates are interlocked with one another when arranged with at least one of the crates in the upper layer overlying two or more in the lower. The outer borders of the rectangular projections adjacent to the edges of the base are parallel to the edges and a distance x from them, x being substantially the thickness of the crate wall. There is a spacing of approximately 2x between adjacent rectangles lengthwise along the crate, and 3x widthwise, and the rectangles may not have the same dimensions. The crate may be moulded in plastics by injection moulding. Each projection is shown as formed by a rib of closed shape.
Patent GB-637392-A (GB)
Title: Improvements in or relating to electrical circuit protection systems for power distribution and like networks
IPC: H02H1/00
Filed: 1947-07-18
Abstract: 637,392. Protective cut-out systems; sparking-preventing in switches. FORMAN, J. July 18, 1947, No. 19346. [Class 38 (v)] In a protective system for a power line 1, two standing waves of different high-frequencies not in harmonic relation are set up by crystalcontrolled oscillators 4, 5. The couplings 6, 10, and 7, 11 are so adjusted as to form nodal points and so normally no high-frequency voltage is applied to the rectifiers 12, 13. On fault, however, e.g. at 19, voltages are applied to the rectifiers and the voltage across a resistance 16 is applied to a triode 20, the grid 22 of which is normally cut-off and receives pulses every half-cycle of the power frequency from a D.C.- saturated transformer 28, 29, 33. The anode current of valve 20 is thus in the form of pulses which are applied to a transformer 27 which causes the circuit-breaker 3 to be tripped, preferably as described in Specification 637,393. The timing of the pulses applied to the grid 22 is adjustable at 27a so as to trip at the zero of the cycle. The saturable transformer may be replaced by a coil situated adjacent the edge of a disc having two diametrically-opposed magnetic elements (Provisional drawing, not shown).
Patent GB-315563-A (GB)
Title: Improvements in or relating to relays and like components of telephone apparatus
IPC: H01H50/02
Filed: 1928-07-04
Abstract: 315,563. Sterling Telephone & Electric CoÀ, Ltd., Blades, N and Beard, J. R. July 4, 1928. Indicators.-A shield for a telephone indicator is formed of a copper tube 1 wholly surrounding the indicator and a short steel lining 4 therefor. The upper edges of the lining form lands on which the yoke of the indicator rests when inserted. The magnetic shield is then completed through the yoke.
Patent GB-959343-A (GB)
Title: Automatic feed device for cigarette machines
IPC: A24C5/39
Filed: 1962-05-21
Abstract: 959,343. Cigarette-making machines. H. J. FROHLING. May 21, 1962 [May 19, 1961], No. 19460/62. Heading A2C. An automatic feed device for supplying loose, cut tobacco to the suction feed shoots 4 of cigarette making machines comprises a rotating plate 2 having a central conical surface 3 on to which the tobacco is delivered and is thence transferred by centrifugal action to the shoots 4 on the periphery of the plate. A fan 5 prevents loss of tobacco under the plate by producing a slight air pressure below the plate.
Patent GB-205553-A (GB)
Title: Improved clip for suspending hats and other articles
IPC: A47G25/10
Filed: 1922-07-15
Abstract: 205,553. McKim, A. July 15, 1922. No Patent granted (Sealing fee not paid). Clips, pivoted-jaw.-A hat &c. holder, for theatre seat backs, &c., comprises a base-plate a of sheet metal with upturned edges b, a spring-pressed lever e pivoted between lugs on the baseplate and a cover-plate o fitting tightly over the edges b of the base-plate. One end k of the lever is dome-shaped and projects through a hole in the cover-plate, the other end g is inturned and carries a rubber block h to press on the edge of the hat.
Patent GB-345900-A (GB)
Title: Improvements in the manufacture of hollow metal bars
IPC: B21K5/06
Filed: 1930-06-27
Abstract: 345,900. Making hollow bars. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN HOFORS BRUK, Hofors, near Gefle, Sweden. June 27, 1930, No. 19597. Convention date, June 28, 1929. [Class 83 (iv).] Fillings.-Hollow bars or tubes for mining-drills, stay bolts, &c., are made by rolling, forging or stretching a hollow billet or ingot on a metal core of smaller diameter than the bore of the billet, the space between being packed with a non- metallic board or string-shaped material for reducing the friction between the core and the billet. The core is stretched after reduction and is then withdrawn from the bar as a whole. The filling material may consist of asbestos board or strings wound on the core before insertion in the billet. The Specification as open to inspection under Sect. 91 (3) (a) stated that the filling material may consist of quartz sand, powder of clay or other fire-proof materials or of silicates of magnesia such as asbestos, and may be applied after the core is inserted. In the case of powder, this may be packed round the core, preferably by shaking by a shaking table such is used for moulding purposes. This subject-matter does not appear in the Specification as accepted.
Patent GB-1366455-A (GB)
Title: Apparatus for wrapping articles with thermoplastic resin films
IPC: B65B9/02
Filed: 1972-04-27
Abstract: 1366455 Wrapping machines IWATANI & CO Ltd 27 April 1972 19667/72 Heading B8C An article G is packaged between two films 15, 16 supplied from supper and lower rolls 17, 18 and sealed together by a hand operated pivotal heat sealing and cutting device 34 which severs the completed package from the films 15, 16, these then being rolled onto a take-up roll 19. The heat-sealing and cutting device 34 is pivoted downwards, to press the films against a receiving plate 33, by means of a handle 40 secured to one end of a rotatable shaft 37. The shaft 37 is spring biased to pivot the handle 40 and the device 34 to a vertical position. This upward pivoting causes, via links 42, 43 and a one way clutch 45, the rotation of a sprocket 44 over which a chain 48 is trained to transmit the rotation to a sprocket 46 connected to a roller 29 which, together with a press-roller 30, draws the films from the rolls 17, 18. The sprocket 46 is mounted on a shaft 47 which also carries a further sprocket (49, Fig. 6) connected via a chain 51 to a sprocket (50) for rotating the take up roll 19. The device 34 comprises a cutter 35 and an electrically heated sealing ring 36 attached to a rod 63 slidably received in a holder 59, a spring 66 acting between the rod 63 and the holder 59 to urge the cutter 35 and the ring 36 into the holder 59. The holder 59 is rotatably mounted on the shaft 37 by arms 67. A press arm 70 secured to the shaft 37 between the arms 67, carries a screw 73 which abuts the rod 63, and is abutted by a plate 74 carried by the arms 67. When the shaft 37 is rotated by the handle 40, the press arm causes the holder 59 to pivot so that an annular plate 60 attached to the holder presses the films against the receiving plate 33, further rotation causing the press-arm to urge the rod 63 downwardly so that the, sealing ring 35 urges the films against a silicone rubber ring 80 for sealing and the cutter 35 severs the package from the films. Completed packages drop through a discharge opening 81  in the plate 33 and into an inclined tunnel 82.
Patent GB-1346814-A (GB)
Title: Methods of fabricating photomasks
IPC: G03F1/68
Filed: 1971-06-09
Abstract: 1346814 Sputtering iron oxide WESTERN ELECTRIC CO Inc 9 June 1971 [15 June 1970] 19691/71 Heading C7F [Also in Division G2] Photomasks are prepared by cathode sputtering a layer of iron oxide on a substrate in an ambient containing at least 3% by volume carbon dioxide, and then etching. Preferably ferrous or ferric oxide (e.g. a 3480A thick film of Fe 2 O 3 ) is sputtered onto a cooled glass substrate in an atmosphere of 3-100% CO 2  optionally mixed with a rare gas, using a pressure of 10<SP>-1</SP> to 10<SP>-3</SP> Torr, using a DC biased RF potential of 1-5 kV and at least 0À1 megacycle frequency.