baber/WOPTO huggingface dataset:
Patent GB-1418447-A (GB)
Title: Switching system
IPC: H04Q11/02
Filed: 1974-04-04
Abstract: 1418447 Telephone exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 4 April 1974 [5 April 1973] 14979/74 Heading H4K A switching system for establishing telecommunication interconnections comprises radio transmitter and receiver units 4e-4h and 7e-7h, Fig. 2, having antennae 5e1-5h1, 5e2-5h2 contained in a common enclosure 6 wherein they are isolated electromagnetically from outside space, and connection is established selectively between subscribers connected to terminals E-G by arranging the transmitters and receivers for the respective directions to operate at the same frequencies. The frequency of the transmitter, receiver, or both may be variable and is/are controlled by a computer 10 in response to the detection of an off-hook condition by a scanner 21. Signalling between the subscribers and the exchange is effected over computer interface junctors 2h-3h and antennae 5A1, 5h2. The transmitting and receiving antennae may be arranged at the respective ends of an elongated enclosure to ensure substantially the same distance between any pair of operative antennae. The system may include a terminal circuit 5 outside of the exchange connected by coaxial cable to antennae 5s1-5s2 within the enclosure. Cross-talk arising from intermodulation within the enclosure is discussed and curatives such as coating the walls of the enclosure with an absorbing layer, selecting all frequencies within the same octave, and providing the antennae with lowpass filters, incorporating frequency converters and filters in the receivers, and designing the antennae for equal reception level are suggested.
Patent GB-1031724-A (GB)
Title: Improvements in and relating to the production of ammonium sulphate
Inventor: ROBERTSON WILLIAM SWAN
IPC: C01C1/247
Filed: 1962-06-18
Abstract: Ammonium sulphate is produced by washing a sulphur-oxide-containing waste gas with ammoniacal solution, aerating the resultant solution at a temperature below that of said solution using rotary surface aerators to form ammonium sulphate crystals which are then separated from their mother liquor.  Absorption of sulphur oxides may be carried out in two or three stages, ammoniacal solution and waste gases being contacted in counter-current flow. Packed columns may be used for the second or second and third stages, with no packing being used in the first stage.  The mother liquor may be recirculated to the oxidation tanks.
Patent GB-545125-A (GB)
Title: Improvements in fuel for compression-ignition engines
IPC: C10L1/18
Filed: 1940-10-08
Abstract: 545,125. Diesel fuels. STANDARD OIL DEVELOPMENT CO. Oct. 8, 1940, No. 14996. Convention date, May 8. [Class 91] The ignition quality of a diesel fuel is improved by adding thereto a small proportion of a high molecular weight diacyl peroxide containing from 16 to 30 carbon atoms per molecule or by injection of the latter dissolved in a solvent such as a high molecular weight ether, into the compression-ignition engine preferably just prior to the injection of the fuel. The cetane number of the fuel is thereby raised without lowering the spontaneous ignition temperature of the fuel. Mixtures of these diacyl peroxides may be used; dilauroyl peroxide is specified. The peroxides are preferably used in the proportions of 0.5 to 4 per cent. by weight ; more may be added together with a solubilizing agent if desired. The preferred diesel fuels comprise petroleum oil distillates of boiling range 375‹- 700‹F., such as a gas oil fraction. The fuel compositions may also contain other additions ; the presence of these diacyl peroxides is particularly advantageous if the further additions comprise polysulphides or free sulphur since they diminish the corrosiveness of the latter. In an example, the. addition of less than 1 per cent. by weight of technical dilauroyl peroxide to a gas oil raised its cetane number from 41 to 48.
Patent GB-450585-A (GB)
Title: Improvements in or relating to rug-hooks and other tools and appliances
IPC: B25G1/00
Filed: 1935-05-23
Abstract: 450,585. Tool - handle fixings. DONISTHORPE, H. W., 695, Aylestone Road, Leicester. May 23, 1935, No. 15054. [Class 61 (i)] A tool tang &c. a is secured in the wood &c. handle b by means of a key d engaging a transverse slot cut in the handle and extending half way into the tool tang, removal of the key being prevented by a cap or ferrule c secured by an indentation e. Instead of the key a pin may be employed extending through holes in the handle and tang.
Patent GB-700027-A (GB)
Title: Improved method of erecting sheds or hangars
IPC: E04B1/344
Filed: 1951-06-26
Abstract: 700,027. Building frameworks. LUDOWICI, J. W. June 26, 1951 [Dec. 27, 1948], No. 15135/51. Class 20 (2) A girder framework of triangular construction for a shed or hangar is erected by arranging on each side of the shed centre line two triangular frames 1, 2 hinged together at 15, and having each lower frame 1 hinged to a pivot 5 and lifting the corner 11 of each upper frame 2 on a frame 13 until they meet at the ridge 11<SP>1</SP>, In a modification each trame 2 is first turned about the pivot 15 until it is vertical and the frames 1, 2 locked together and then the corners 11 of the frame are drawn together to the ridge by block and tackle.
Patent GB-168168-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04B2/14
Filed: 1921-02-19
Abstract: 168,168. Walker, A. Feb. 19, 1921. Building-blocks, special shapes of.-In building-blocks formed of two sides connected by webs so that vertical cavities are provided, the sides a are provided with projections b on the top surface, and recesses c on the bottom surface; and the webs f are arranged so that projections and recesses d, e respectively are formed at the ends of the block. The webs f are of less height than the block so that horizontal cavities are formed when the blocks are built up.
Patent GB-102706-A (GB)
Title: Non-refillable Bottles.
Inventor: NARUNSKY SOLOMON
IPC: B65D49/06
Filed: 1916-10-25
Abstract: 102,706. Narunsky, S. Oct. 25, 1916. Bottles, non-refillable.-A valve device for a non-refillable bottle comprises an open-ended pouring-tube 12 secured in the neck 9 of the bottle and containing a valve 15 which seats on a detachable plug 13 at the lower end of the tube 12 and has a stem 18 carrying a tubular weight member 19, the upper end of the stem forming a seat for a guard 24 below the contracted outlet end 28 of the tube. A retaining-ring 29 engages the shoulder at the end 28 of the tube, and the plug 13 rests on an internal shoulder 10 of the neck 9. Longitudinal ribs 17 are formed on the valve 15, which seats on an annular raised portion 16 of the plug 13. The slidable member 19 has longitudinal ribs 20 and a tapered opening 22, which is rabbeted at its lower end to engage a shoulder 23 on the valve 15. The guard 24 is provided with top and bottom central cavities 26, 25 and with ribs 27 which project at each end.
Patent GB-182648-A (GB)
Title: Improved enriched water gas plant
IPC: C10J1/213
Filed: 1921-06-01
Abstract: 182,648. Maclaurin, R. June 1, 1921. Producers; producer plant.-In making carburetted water-gas, the fuel contained in a producer chamber A is blown with air through inlets C below the level of the top of the fuel, the producer gas is taken off by conduits D and burned in a chamber B containing refractory material, secondary air being supplied by inlets at the bottom of the chamber and the combustion products escaping through a stack E. Steam or steam and oil is then passed into the upper part of the combustion chamber B entering the producer at the bottom and the hot water-gas passes through the fresh coal at the top of the chamber A and is enriched thereby. The gas leaving the generator by an outlet F may be passed through the ammonia-making zone of producer such. as is described in Specification 24426/13.
Patent GB-976407-A (GB)
Title: Improvements in or relating to a box support for textile spinning, twisting and likemachines
IPC: D01H1/16
Filed: 1962-04-19
Abstract: 976,407. Spinning-apparatus. BARMER MASCHINENFABRIK A. G. April 19, 1962 [April 28, 1961], No. 15286/62. Heading D1D. A support for the driving shaft 7 in a spinning &c. frame in which the shaft carries a series of pulleys each with an endless tape passing around the wharve of one spindle and a tensioning-roller, comprises brackets 49 in which the shaft is mounted extending radially of the shaft and connecting the two spindle-rails 2, 3, the brackets and rails forming a housing which surrounds the drive mechanism including the disengaging mechanism including the disengaging mechanism and stop motions. The two rails are pressed out of one piece of metal to form a trough-like box, to which the brackets are welded, these parts being provided with sound-absorbing material. A similar upper housing may also be provided.
Patent GB-554341-A (GB)
Title: Improvements in the metallic coating of articles
IPC: C25D5/54
Filed: 1941-11-28
Abstract: 554,341. Coating with metals. PROTECTIVE METAL FINISHES, Ltd., and BERGSTEIN. G. K. Nov. 28, 1941, No. 15348. [Class 82 (ii)] [Also in Group XXXVI] Non-conductive surfaces are prepared for electroplating by coating them, preferably after roughening, with a layer of varnish, softening the dried varnish layer by means of a solvent, and causing a layer of conductive particles which may be in suspension in the solvent, to adhere to the softened surface. The particles may consist of a zinc-lead alloy in powder form. A metallic deposit may be built up on the surface so prepared by treatment for instance with an acid solution of a copper salt, which may be followed by the electrodeposition of copper or other metal. Specification 554,370 is referred to.
Patent GB-1145891-A (GB)
Title: Improvements in or relating to processes for the pickling and etching of metals, and to the composition of pickles for this purpose
IPC: C23G1/08
Filed: 1966-04-06
Abstract: 1,145, 891. Pickling iron and steel. KALMAN VON SOOS. April 6, 1966 [April 7, 1965], No.15362/66. Heading C7E. Iron and steel are pickled in a mixture of concentrated sulphuric acid and/or chromosulphuric acid with H 2  O 2  the mixture being kept below 60‹ C. during the entire pickling. The pickling mixture comprises by volume: concentrated sulphuric acid and/or chromosulphuric acid 30 - 70% H 2  O 2  35% weight concentration 20 - 50% heater 0 - 40% The pickle mixture is preferably refrigerated so that the temperature remains below 15‹C.
Patent GB-1476907-A (GB)
Title: Electronic negative resistance and positive resistance  circuits
IPC: H03K17/06
Filed: 1975-04-15
Abstract: 1476907 Electronic impedance INTERNATIONAL STANDARD ELECTRIC CORP 15 April 1975 [22 April 1974] 15408/75 Heading H3W An active resistance comprises amplifiers OP1, OP2 and resistors Z1, Z2, R2, R4 interconnected in the manner shown in Fig. 2a, the resistance being negative if the non-inverting input of amplifier OP1 is connected to a reference potential as shown and positive if the inverting input of amplifier OP2 is connected to the reference potential, Fig. 2b (not shown), the reference being that to which the amplifier outputs are referenced (not shown).
Patent GB-701615-A (GB)
Title: Improvements relating to agricultural mowing machines
Inventor: BAMFORD JOSEPH CYRIL
IPC: A01D34/06
Filed: 1952-01-02
Abstract: 701,615. Tractor-supported mowing machines. BAMFORDS, Ltd. July 15, 1952 [Jan. 2, 1952], No. 15588/51. Class 6 (3) Relates to machines of the type having a sideprojecting cutter bar supported between the front and rear wheels of a tractor. According to the invention, detachable means connecting the mower and tractor at two longitudinally displaced points comprises at one point an attachment bracket with a longitudinal tubular socket made fast with the tractor (or mower) and a longitudinal pin fast with the mower (or tractor) for ready insertion in the socket. The invention is shown in side view in Fig. 2 applied to the attachment of the longitudinal sleeve 15 enclosing the driving shaft 16 of the reciprocating cutter (not shown). This shaft is driven at the rear from the tractor through belt pulley 17 and at the front carries the usual cutter-driving crank 22 enclosed in a housing 23 either end of which can be inserted in a rubber-bushed socket 28 welded to a bracket 30 bolted to the body of the tractor. At the rear, the sleeve 15 has welded thereto two plates 40 which receive between them a bracket 37 depending from the rear axle casing 39. The detachable rear fastening includes a removable pin 41 retained by a pivotal plate 34 the axis pin 45 of which has fast therewith an eccentric 46 that bears against an adjustable stud 47 on the bracket 37. As shown in Fig. 3, the eccentric retains the plate 44 which can be turned through 180 degrees to unmask the pin 41 for removal.
Patent GB-744655-A (GB)
Title: Improvements in or relating to low shaft furnaces
Inventor: BERG HEINRICH KOPPER
IPC: C21B7/02
Filed: 1952-04-08
Abstract: 744,655. Shaft furnaces. KO-WE NIEDERSCHACHTOFEN GES. April 8, 1952, No. 15701/54. Divided out of 744,596, [Group II]. Class 51 (2). A low shaft furnace, i.e. a furnace having a shaft height of approximately 10-12 metres, for the reduction of a bulk charge 4 admixed with coal or coke and using an air or oxygenated air blast, comprises a hearth 1, with tuyeres 2 and a tap-hole 3, an intermediate outwardly flaring portion 8 formed with agitator plates 9 and arranged to be rotatably driven, and an upper shaft portion of considerably greater crosssectional area than the hearth 1. A charging hopper 6 and a fixed central abutment 7 for delaying the descent of the middle portion of the charge are also provided. The abutment 7 may be replaced by vertical chains or rods.
Patent GB-898387-A (GB)
Title: Collapsible tube and apparatus for producing said tube
IPC: B21D51/36
Filed: 1960-05-04
Abstract: 898,387. Making collapsible tubes; stamping. DUFFAU, G. May 4, 1960 [May 5, 1959], No. 15767/60. Classes 83 (2) and 83 (4). [Also in Group XVII] Apparatus for forming collapsible tubes comprises a female die 2 of frusto-conical internal shape and a male die covered by a rubber sleeve 5, a cylindrical tube of lead or aluminium being placed round the rubber sleeve before the male die is inserted in the female die and air or liquid being subsequently admitted under pressure through passages 31 in the male die in order to distend the sleeve 5. The male die has a steel plug portion 3 and its rear end is fast with a slide 4. Either of the dies or the slide 4 may be spring-loaded to limit the effects of the fluid or air pressure.
Patent GB-303716-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/20
Filed: 1928-05-31
Abstract: 303,716. Heal, W., (Assignees of Optische Anstalt Metzler et Cie). April 4, 1928, [Convention date]. Spectacles.-The sides of spectacles are constructed in two parts so as to be longitudinally adjustable. In one of the parts a there are formed notches c at intervals which on sliding engage stops e formed on the other part b. The stops e are made by forming recesses d on the outside of the part b or by cutting resilient tongues in the same. The part b may be celluloid lined with metal.
Patent GB-794439-A (GB)
Title: Improvements relating to hand trucks
IPC: B62B1/10
Filed: 1955-06-04
Abstract: 794,439. Hand trucks. SLINGSBY Ltd. H. C., and SLINGSBY, G. June 4, 1956 [June 4, 1955], No. 16089/55. Class 108(1) A hand truck preferably of tubular construction has a toe-plate 1 pivotally mounted on the axle 4 and in the operative position abuts against a transverse frame member 7 whilst in the inoperative posit i o n is retained against the cross member 9 by a suitable clip so as to leave the top surface of the truck free of obstruction.
Patent GB-1101296-A (GB)
Title: Improvements in or relating to the manufacture of insulating oxide layers on metal bodies
IPC: C25D11/02
Filed: 1966-04-13
Abstract: An electrically insulating oxide layer is formed anodically on a metal exhibiting the valve effect, e.g. Al, Ta, Nb, Zr, by connecting the metal as cathode with an applied voltage of 2 to 20 volts before the anodic oxidation step. The cathodic treatment is stated to effect removal to the counter electrode of impurities present in the forming electrolyte, such as nitrate and halide (e.g. chloride) ions which also may be introduced by the metal to be oxidized due to a previous chemical or electrolytic roughening treatment. The invention is disclosed as applied especially to electrolytic capacitors.
Patent GB-386869-A (GB)
Title: Improvements in supports for steam superheaters
IPC: F22G7/14
Filed: 1932-06-08
Abstract: 386,869. Steam superheaters. INTERNATIONAL COMBUSTION, Ltd., Aldwych, London.-(International Combustion Engineering Corporation, 200, Madison Avenue, New York, U.S.A.) June 8, 1932, No. 16207. [Class 123 (iii).] Steam superheaters comprise a main set of tubes, e.g. in general parallel relationship, and other tubes which may be portions of the main set extending transversely across them with supporting means carried by the transverse tubes and engaging the others. At suitable points transversely of a group of hairpin elements 8 certain of the elements are bent to provide transverse portions 8a carrying supporting means such as lugs 11. In a modification, each element has supporting portions 8a with lugs formed on one side only. In another the portions 8, 8a are welded together.
Patent GB-612583-A (GB)
Title: Improvements in or relating to antenna systems
IPC: G01S7/03
Filed: 1946-05-28
Abstract: 612,583. Aerial coupling arrangements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 28, 1946, No. 16252. Convention date, Jan. 17, 1945. [Classes 40 (v) and 40 (vii)] In a single antenna system for transmission and reception of the same or closely similar frequencies, two directive aerials are employed which are interconnected to a receiver and transmitter in such a manner as to prevent interaction therebetween. The antenna system comprises two directive elements 1, 3 connected by means of two transmission lines 11, 13 of equal length to junctions 15, 17. A pair of branch lines 19, 21 also of equal length connect the points 15, 17 to a common feed point 23 for a radio device 27 (e.g. receiver). The junctions 15, 17 are also connected through lines 31, 33 of equal length to a line balance converter 29, connected by a common feed line 41 to a radio device 43 (e.g. transmitter). Energy from the transmitter 43 flows in the line 31, 180 degrees out of phase with that in the line 33 and the net voltage at the point 23 is nil so that no energy reaches the receiver 27. During reception currents flow down the lines 11, 13 in phase, add at the point 23 and flow to the receiver 27. The transmitter 43, however, is not affected since these in-phase voltages oppose each other in the converter 29. The directive elements 1, 3 are disposed with their directive axes 9 parallel with each other and their centres are displaced one quarter wavelength from each other along the direction of these axes so that a maximum signal may be obtained along the axes 9.
Patent GB-1172527-A (GB)
Title: Devices for Feeding Tape to a Machine
Inventor: BROWN JULIAN CLIFTON
IPC: D05B35/06
Filed: 1966-04-14
Abstract: 1,172,527. Feeding webs. WOLSEY Ltd. 6 March, 1967 [14 April, 1966], No. 16342/66. Heading B8R. A reciprocating gripper feed mechanism 15, for introducing the leading end of a web 21 into a machine, is mounted on a block 16, slidably movable relative to a frame 12 against the bias of a spring 22. The grippers 17 and 18 engage the web 21 through top and bottom slots 19 in a rectangular tube 13 attached to the frame 12. When the leading end of the web is to be advanced into the machine, the frame 12 is moved along guide rods 11, thereby advancing the tube 13 through open cutters 31, 32, up to the entrance of the machine, e.g. a sewing machine. Thereafter, the reciprocating grippers 15 advance the web through the tube 13 and into the machine which takes over the feed. When the frame 12 returns to its starting position, it operates either a micro-switch 42 or a valve (not illustrated), which operates a solenoid 39 or a pneumatic cylinder (not illustrated) to pivot the cutter blade 32 to sever the web.
Patent GB-420651-A (GB)
Title: Process for the manufacture of knotted carpets on carpet knotting looms
IPC: D03D27/12
Filed: 1934-06-01
Abstract: 420,651. Carpets with pile tufts knotted around warp threads. BREITSCHADEL, F., 1, Krottfelder Strasse, Katscher, Upper Silesia, Germany. June 1, 1934, Nos. 16432 and 16433. Convention dates, June 1, 1933 and Dec. 12, 1933. [Class 142 (iv)] Each pile tuft is knotted round two sets of warp threads, each comprising two or more threads d, e, and g, h, Figs. 5 and 6, arranged side by side, but shed separately to receive the binding-wefts 1, 2. Shrinkage of the weft threads and of the carpet is thus prevented. The warp threads e, h may be more highly tensioned than the threads d, g and shed so that the first binding weft moves underneath the second to some extent as shown at 1 in Fig. 10. The first and fourth or the second and third warp threads may be loose and the others tight, and a greater amount of the loose warp threads than the tight ones may be inserted. An example wherein the tufts are each knotted around two sets of three threads is illustrated. The carpet may have Smyrna or Persian knots.
Patent GB-553903-A (GB)
Title: Improvements in or relating to processes and mash for the production of riboflavin by butyl alcohol-producing bacteria, and the products resulting therefrom
IPC: A61K31/525
Filed: 1940-11-13
Abstract: 553,903. Riboflavin. COMMERCIAL SOLVENTS CORPORATION. Nov. 13, 1940, No. 16447. Convention date, Oct. 24, 1940. Addition to 553,465. [Class 2 (iii)] [Also in Group VI] In the production of riboflavin, butyl alcohol and acetone by fermentation especially with Clostridium Acetobutylicum (Weizmann) in which the amounts of iron, nickel, cobalt, copper, lead and zinc present in the mash are maintained sufficiently low to reduce or prevent the inhibiting effects of these metals on riboflavin formation as described in the parent Specification, the mashes are made from rice with or without other carbohydrate materials (except corn). Preferably the rice is brown and unground, but polished rice may be used. Examples show the yields obtained with mashes of rice and of rice and barley respectively. Specifications 527,478 and 553,904 are referred to.
Patent GB-553756-A (GB)
Title: Improvements relating to thresholds for doors, windows and the like
IPC: E06B1/70
Filed: 1941-12-20
Abstract: 553,756. Door and window sills. BURTON, W. D. Dec. 20, 1941, No. 16448. [Class 20 (iii)] A channel portion B is formed in a threshold A of a door H, or window, mounted on the doorstep or window-sill, so that rain may be drained through an inclined opening D to the outside. One side of the threshold has a raised portion C against which the door abuts, and a baffle E is provided to prevent entry of wind through the opening.
Patent GB-571245-A (GB)
Title: Improvements in or relating to the manufacture of whiteheart malleable iron
IPC: C21D5/10
Filed: 1942-11-21
Abstract: 571,245. Decarburizing and annealing cast iron. BIRMINGHAM ELECTRIC FURNACES, Ltd., ROBIETTE, A. G. E., and HANCOCK, P. F. Nov. 21, 1942, No. 16493. [Class 72] Whiteheart malleable iron is produced by heating white iron castings in a gaseous decarburizing and substantially non-oxidizing atmosphere, e.g. that described in Specification 564,252, to a temperature below 1150‹ C. and then quenching, the castings being removed from the quench when they are at a temperature of 100-600‹ C. The castings, preferably immediately after their removal from the quench, are re-heatod to a temperature below the lower critical point and preferably 500- 700‹ C. and then allowed to cool in air. The quenching may be effected in oil, water or air.