baber/WOPTO huggingface dataset:
Patent GB-1006872-A (GB)
Title: Electric circuit
IPC: B23K11/25
Filed: 1963-03-28
Abstract: 1,006,872. Semi-conductor circuits. ROBOTRON CORPORATION. March 28, 1963 [April 11, 1962], No. 12409/63. Heading H3T. [Also in Division H2] A timing circuit particularly for timing the squeeze hold weld &c. operations of an electric welder includes triggering circuits comprising a uni-junction transistor 100 fired by the charging of a capacitor 98 through a selected one of rheostats 112, 123, 136, 144. When transistor 100 fires, the capacitor 98 is discharged and a negative pulse is passed through capacitor 117 and conductor 166 to a pair of bi-stable circuits including transistors 31, 32, 61, 62 forming a counter of four. The four possible states of the counter through co-incidence circuits formed by rectifiers 128, 149 &c. earth all but one of the capacitor 98 charging circuits 112, 123, 136, 144. The four states of the counter also, through other co-incidence circuits, energize the welding electrode closing mechanism and S.C.R's 228, 229, which supply the welding current. To synchronize the pulse with the A.C. supply, a winding 4 each cycle renders a Zener diode 25 and hence a transistor 15 conductive, which shunts through resistors 10, 35 the transistor 91 which lowers the potential necessary at electrode 100 to fire this transistor. An alternative arrangement is described having a counter of 8.
Patent GB-423576-A (GB)
Title: Improvements in pistons
IPC: F02F3/00
Filed: 1933-04-28
Abstract: 423,576. Pistons. FUSIONMOTEURS, Boulevard GalliÚni, Rueil-Malmaison, Seine-et-Oise, France. April 28, 1933, No. 12422. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 11, 1934]. [Class 122 (i)] A piston comprises a body portion a, of cast iron, steel &c., and a head b of aluminium or aluminium alloy. The head b seats on a shoulder c in the body, and is secured by bolts e ; a member d of plastic metal &c. seals the joint. The head b is slightly tapered the lower part being a tight fit in the body ; the head has slots g.
Patent GB-553363-A (GB)
Title: Improved bearings and methods of making the same
IPC: F16C33/12
Filed: 1942-09-03
Abstract: 553,363. Bearings. CONSTANTINE, W. W. (General Motors Corporation). Sept. 3, 1942, No. 12431. [Class 41] [Also in Group XXXIV] Bearing surfaces of fine grain silver are electrolytically deposited on metallic layers, for instance of copper, fused or welded or otherwise thermally bonded to backings, for instance of steel. The backing is degreased, cleaned electrolytically in an alkaline bath, dipped in an acid bath and the copper layer applied either by casting in a deoxidizing atmosphere or by electrolytic deposition followed by welding. The copper layer is degreased and cleaned as above, rinsed, given a bright-dip in acid, again rinsed, and dipped in 10 per cent KCN solution, after which it is placed first in a silver striking bath (AgCN, KCN and K 2 CO 3 ) and then in the plating bath proper (AgCN, KCN and K 2 CO 3  with Na, S 2 O 3  and NH 4  OH as grain size reducing agent or brightener). The backing 10 with the copper layer 12 may be suspended in the bath 20 by a clamp 14, 16, the anode consisting of a hollow shaft 30 rotated by a drive 32 and having a bag 36 or spun glass, cotton or other material filled with silver balls tied to the open lower end, current being supplied thereto through a wiper 40.
Patent GB-1391339-A (GB)
Title: Methods of controlling open-cycle heating systems
IPC: G05D23/19
Filed: 1972-03-16
Abstract: 1391339 Central heating systems CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT and COMPAGNIE ELECTRO-MECANIQUE 16 March 1972 [17 March 1971] 12478/72 Heading G3R In the control of an open cycle heating system for a building, the primary heat source is controlled with the aid of a means (not described) which functions in accordance with mathematical expressions given, and which expressions take account of the heat losses from the building interior to the outside and heat gains from the outside to the interior, due to various physical variables.
Patent GB-801961-A (GB)
Title: Erosion and flood control and land reclamation
IPC: E02B3/18
Filed: 1956-04-24
Abstract: 801,961. Gravity-separation apparatus. KARCH, K. April 24, 1956, No. 12487/56. Class 46. [Also in Group XXI] Erosion and floods, caused, e.g., by deforestation and cultivation of excessively sloping land, can be prevented, and damaged land can be reclaimed, by erecting a barrier 12, made, e.g., of earth, concrete, stone or the like and having a central draining channel 16, across a gully 11 down which flood water normally runs and forming a basin 13, the flood water, temporarily trapped in the basin and depositing its silt on the floor of the basin, being gradually discharged through the conduit 16, and, if desired, into another basin lower down, and also seeping into the subsoil below the basin 13. The inlet end of the conduit 16, which is designed so that the rate of flow through it is substantially less than the normal rate of flow into the basin, and which is preferably protected by a guard, is turned upwardly to form an elbow which facilitates the fitting of extensions which can be added as the silt level 19 continues to build up, the inlet normally being arranged to be appreciably above the silt level 19. When it is desirable, e.g., in times of drought to use the basin 13 for storing water, e.g. for irrigation purposes, the conduit may be provided with a valve, e.g., a float actuated valve. The basin 13, which would normally empty in about onehalf to two days, is provided with an overflow spillway 17 at one end of the barrier 12. This arrangement of basin and barrier can also be used successfully in combination with the usual kind of terracing.
Patent GB-814009-A (GB)
Title: Three-dimensional hydrophilic high polymeric articles
IPC: C08F220/28
Filed: 1956-04-24
Abstract: Hydrogels containing a cross-linked copolymer are made by copolymerizing an acrylic or methacrylic monoester of a glycol or polyglycol with an acrylic or methacrylic diester of a glycol or polyglycol in an aqueous medium, the water content of which does not substantially change during copolymerization, the weight ratio of the monoester to diester ranging from 50 : 1 to 500 : 1. Glycols and polyglycols specified are ethylene, triethylene, propylene, polyethylene, polypropylene and mixed polyethylene-polypropylene glycols.  If desired, the monomer mixture may also contain an alkyl methacrylate, e.g. methyl methacrylate.  Copolymerization may be accelerated by catalysts such as potassium persulphate or an ammonium persulphate/sodium bisulphite mixture.  During copolymerization there may be immersed in the reaction mixture fibres or sheets of a material, e.g. glass or a polyester, which is removed at the completion of copolymerization to yield a channelled product which may be used in dialysis operations or as an artificial kidney.  The hydrogels may also be used in the manufacture of contact lenses, surgical fillings or partitions and pessaries.
Patent GB-1096845-A (GB)
Title: Derivatives of dicarboxylic amino acids
IPC: A23L27/21
Filed: 1965-03-24
Abstract: The invention comprises salts of an acid having a dissociation constant of at least 1.0 x 10-1 and the anhydride of an aliphatic dicarboxylic amino acid having a straight carbon chain length of 4 or 5 (including the carboxylic groups) in which the carbon atoms may be substituted by alkyl, alkoxy or halo groups and a process for the preparation thereof wherein an acid salt of the corresponding dicarboxylic amino acid derived from an acid having a dissociation constant of at least 1.0 x 10-1 is treated with a dehydrating agent under anhydrous conditions in a strongly acidic medium containing an acid having a dissociation constant of at least 1.0 x 10-1.  The strong acid from which the amino acid salt is derived may be the same as that used to provide the acid medium.  Specified strong acids are chlorosulphonic, fluorosulphonic, sulphuric, trifluoroacetic and halogen acid.  Specified amino acids are glutamic and aspartic acids. It is preferred to use at least a molar equivalent of dehydrating agent per mole of dicarboxylic amino acid. Specified dehydrating agents are oxalyl chloride, thionyl chloride, PCl5, PCl3 and phosphorus oxychloride.  Examples are provided.  In Example 3 the hydrochloride of L-glutamic anhydride is made by treating the trifluoroacetate of L-glutamic acid with thionyl chloride and in Example 6 the hydrochloride of L-aspartic anhydride is converted to the hydrobromide by treatment with HBr in acetic anhydride.  The invention includes the preparation of the corresponding amides of the dicarboxylic amino acid by treating the salts of the anhydrides with liquid ammonia.
Patent GB-1375491-A (GB)
IPC: B65H67/052
Filed: 1972-03-17
Abstract: 1375491 Continuous winding MALLEFER SA 17 March 1972 [30 April 1971] 12546/72 Heading D1J A continuous winding apparatus has two rotatably mounted bobbins 16, 17 arranged with their axes parallel but not coaxial. Bobbin 16 is normally in the position shown but bobbin 17 can be moved along rails 18, 19 from the full line position to the broken line setting. When bobbin 16 nears completion the empty bobbin 17 is moved from the full line setting to the broken line setting. The traverse pulley 6 then moves along rails 3, 4 to a setting over the bobbin 17 and the yarn is automatically wound on bobbin 17 and severed from bobbin 16. Bobbin 16 is then removed in the direction of the arrow and replaced with an empty bobbin. (For Figure see next column) When bobbin 17 is full the traverse pulley 6 moves back along rails 3, 4 to a setting over the now empty bobbin 16 and the yarn is automaticaly transferred to it. The full bobbin 17 is moved back along the rails 18, 19 to the full line setting and then doffed in the direction of the arrow.
Patent GB-714843-A (GB)
Title: Process for the manufacture of ethylene polymers and interpolymers
Inventor: BUCKLEY GERARD DUNSTAN
IPC: C08F2/54
Filed: 1951-05-29
Abstract: Ethylene, together if desired with other vinyl compounds or carbon monoxide, is polymerized to solid or semi-solid polymers by treatment, in the liquid or compressed state, with penetrating radiation, particularly g -rays, hard X-rays or neutrons.  In the case of g - or X-rays, suitable dose rates are those exceeding 0.5 roentgens per minute.  A suitable neutron flux is one exceeding 10 neutrons/sq. cm./sec.  When in the gaseous form, the density of ethylene at the polymerizing temperature should exceed 0.21 gm./c.c., involving, preferably, temperatures of 120 DEG  to 250 DEG  C. at pressures of 500 to 1,500 atmospheres.  Sensitizers such as chlorohydrocarbons, e.g. tetrachlorethane and chloroform, alcohols, e.g. methanol, n-propanol, and other oxygen-containing compounds such as ethers and ketones, may be present.  The ethylene may be copolymerized with vinyl acetate, styrene, methyl methacrylate, formaldehyde and carbon monoxide and with other compounds as described in Specification 581,899.  Cobalt 60 is the preferred source of radiation; others mentioned are radium, tantalum 182, iridium 192, chromium 51, atom piles, and mixtures of beryllium with radium, polonium and antimony 124. Polymerization may be effected in batch or continuously.  Polymers may be produced having very high molecular weights, e.g. in the region of 50,000, and high melting points.
Patent GB-562577-A (GB)
Title: Mounting panel for radio valves
IPC: H01R33/76
Filed: 1942-09-10
Abstract: 562,577. Thermionic valve holders. PHILCO RADIO & TELEVISION CORPORATION. Sept. 10, 1942, No. 12755. Convention date, Nov. 13, 1941. [Class 38 (i)] A base for mounting several thermionic valves employed in a radio set comprises panels 1, 2 of insulation drilled at intervals to provide sockets for the valve pins with sufficient spaces between the valve holders for mounting transformers, and having conductive strips 6, 7, 8 fixed between the panels to connect together certain of the valve-socket contacts. The strips 6, 7 have offset ends and branches 9 split and shaped to form the valve-socket contacts constituting the filament supply. Lugs 10 bent up from the strips pass through one of the panels and serve for connecting a source of supply. The strip -8, insulated from the strip 6 by an insulating strip 13, has valve socket contacts 14, 15 formed on it, a lug 16 bent up from it for the connection of a source of supply, and lugs 17, IS for connections to the transformers mounted in the holes 5a, 5b in the panels. Specification 526,821 is referred to.
Patent GB-975658-A (GB)
Title: Improvements in integrator
IPC: G11C21/00
Filed: 1962-04-03
Abstract: 975,658. Electric selective signalling; electric analog calculating. INSTITUTE FOR CANCER RESEARCH. April 3, 1962 [Dec. 22, 1961], No. 12791/62. Headings G4G and G4H. [Also in Division H4] An analog input from a current generator (not shown) is applied to charge an integrating capacitor 21 (Fig. 1) in parallel with a biased clamping diode 22 and the capacitor voltage is connected over the secondary of transformer 25 and series diode 27 to the grid of triode 26 whose anode is energized through the primary of transformer 25 in a blocking oscillator circuit. Initially the capacitor is charged to a voltage -V when diode 27 is non-conducting and the blocking oscillator is inoperative. Input current charges the capacitor until its positive voltage exceeds that of the grid of 26 and diode 27 conducts to establish a feedback path over which the blocking oscillator fires to discharge the capacitor and charge it negatively to -V as before, while imposing a pulse over line 32 to a counter (not shown) which over a period of time indicates the integral of the input current. A connection may be derived from measurement of the capacitor voltage at the end of the time interval. In a modification (Fig. 2 not shown) the capacitor initial charge is zero and the subsequent charge is in positive sense.
Patent GB-611343-A (GB)
Title: An adjustable marking device for use in sowing seeds
IPC: A01C5/06
Filed: 1946-04-29
Abstract: 611.343. Horticultural implements. SKAIF, H. J. R., and HARDS, E. W. April 29, 1946, No. 12799. [Class 6 (ii)] Marking or spacing devices for seed drills consist of pointers 9 attached to telescopic members 3, 4. A set-screw 5 passing through sleeve 2 and the tube 3 fixes the members as desired. The screw may also pass through holes in the rod 4, and a drill marker 9 may also project from the sleeve 2. The set-screw holder 1 may form a socket for a long handle.
Patent GB-1472351-A (GB)
Title: Drum-type machines for treating textile articles
IPC: D06F58/02
Filed: 1975-03-27
Abstract: 1472351 Tumbler dryer A MEYER 27 March 1975 [3 April 1974] 12823/75 Heading F4G An apparatus for drying washing comprises a housing 1 containing a horizontally mounted rotatable drum 2 which is air-permeable, a blower 12 which provides approximately radial air flow through the drum, a heater 5 for the air, an exhaust air duct 13, an aperture 14 in the front of the drum closable by a door 17, and an aperture 32 in the back of the drum connected directly to a blower, e.g. the blower 12 or a second blower (26), Fig. 2 (not shown), for delivering an axial air flow through the drum, e.g. to assist unloading on the operation of a flap 19 which is movable to a position 19<SP>1</SP>. In Fig. 2, the flap 19 is omitted, and the axially moving air is exhausted through ports (28 . . . 30). It is stated that the axial air flow may be switched on automatically.
Patent GB-831224-A (GB)
Title: Improvements in or relating to stairway and doorway guards
IPC: E06B9/02
Filed: 1957-04-23
Abstract: 831,224. Stairguards. WALLIS, W. H. April 15, 1958 [April 23, 1957], No. 12836/57. Class 20(3) A stairway or doorway guard comprises a panel B and a pair of side members C adapted to be supported vertically in brackets F. As shown in Fig. 1 the distance between the side members may be adjusted by sliding them along the rails A. In the modification shown in Fig. 3 the side members are attached to U-shaped members D having limbs slidable within the rails A, chains E preventing complete withdrawal of the limbs from the rails. In a further modification (Fig. 4, not shown) the rails and the panel are each formed in two parts, the parts of the panel being connected by a check chain and each carrying a support member, and the parts of each rail being arranged telescopically,
Patent GB-1465951-A (GB)
Title: Crowns of furnaces
IPC: F27D1/02
Filed: 1974-03-22
Abstract: 1465951 Suspended furnace roofs SIRMA SOC ITALIANA REFRATTARI MARGHERA AZIONARIA 22 March 1974 [22 March 1973] 12878/74 Heading F4B A suspended furnace roof comprises rows of hanger bricks 22 having lateral projections 22d on which rest blocks 24, adjacent bricks being engaged by co-operating grooves 22e and projections 22b and every third brick having a head end 22a with lateral projections 22b engaging U-shaped hooks 21 hung from transverse beams 20. The bricks 22, Figs. 9 and 10, may be replaced by ones having T-sectioned slats at their upper ends, Figs. 7 and 8 (not shown), whereby the hooks 21 engage projections formed by the arms of T. The blocks 24 have passageways (24b, Figs. 4 and 5) extending therethrough so that when assembled they define passageways extending along the roof. Adjacent contingent edges (24e, Fig. 6) of said blocks 24 are oblique. In a modification, Figs. 14 and 18 (not shown) the bricks between those engaged by the hooks 21 are omitted, the blocks 24 are replaced by ones having rebated corners, and the bricks have the lateral projections for the blocks on all four sides.
Patent GB-431227-A (GB)
Title: Improvements in and relating to fixed charge devices for prepayment mechanism
IPC: G07F15/06
Filed: 1934-04-28
Abstract: 431,227. Prepayment mechanism for meters. HOLDEN, F., and MEASUREMENT, Ltd., Terminal House, Lower Belgrave Street, London. April 28, 1934, No. 12913. [Class 27] Mechanism for prepaying basic charges ; price-changing mechanism.-In basic charge collecting mechanism for prepayment meters, a constant speed motor drives a plurality of variable motion-transmitting mechanisms covering different ranges of speed changes, the sum of whose motions is conveyed to the quantity differential, and separate devices are provided for each transmitting mechanism for controlling and indicating its debit rate. In the construction shown, two such mechanisms are employed for providing coarse and fine adjustment respectively of the tariff rate. A shaft a driven by the constant speed motor carries a pinion b driving pinions c, d loose on shafts n, o and carrying arms e, f provided with spring pawls i, j, which drive ratchet wheels k, m fast on the shafts n, o respectively. The proportion of each revolution for which the pawls engage their respective ratchet wheels is adjustable by co-operating fixed and adjustable sector masks 9, 3 and 10, 4, the adjustable sectors 3, 4 being carried respectively by notched indicator discs 5, 6 by which they are adjusted to the required debit rate. The movements of the shafts n and o are summated by an epicyclic differential comprising a planet carrier q driven from shaft n, a sun-wheel s driven from shaft o, and a driven sun-wheel t equal in diameter to the sun-wheel s but having slightly more teeth, which sun-wheel drives a shaft w gearing with the differential quantity mechanism. The gear ratio between shafts n and w is 12 times that between shafts o and w, so that the variable ratchet drive controlled by the disc 5 provides for adjustment of the basic charge in pence, and the disc 6 for adjustment in shillings. Specification 414,069 is referred to.
Patent GB-227348-A (GB)
Title: Improvements in and relating to lighting systems for mine trains
IPC: B60Q1/48
Filed: 1924-05-26
Abstract: 227,348. Adams, E., and McAnulty, A. H. May 26, 1924. Vehicle lamps.-Lamps for use as head and rear lights of a mine train are normally supplied from the power circuit of the locomotive, but upon failure of this circuit, such as by the removal of a lamp ior use as a hand lamp, an auxiliary bulb is automaticallv connected to an auxiliary battery. Each lamp casing 11 comprises an upper compartment 46 containing the battery 44, a main compartment having a reflecting back, a lens at the front, and containing the main bulb 17 and a low-voltage auxiliary bulb 18, and a lower compartment containing a solenoid switch 22 for determining the operation of the lamp. The casing is provided with a boss 51 adapted to engage a standard 52 on the locomotive. and with a hook on its back so that it can be hung on the last truck of the train. A flexible lead from the lamps can be connected to supply wires running throughout the train. A hand switch is interposed in the auxiliary circuit so that the bulb 18 may be extinguished when not required.
Patent GB-534648-A (GB)
Title: Improvements relating to the production of toluene
IPC: C07C5/367
Filed: 1939-05-01
Abstract: 534,648. Toluene. GAS LIGHT & COKE CO., and GRIFFITH, R. H. May 1, 1939, No. 12968. [Class 2 (iii)] [Also in Group III] Toluene is prepared from its hydro-derivatives by heat treatment at ordinary pressure in presence of a catalyst containing chromium and a promoter, the ratio of promoter to catalyst being within the peak range of the catalyst activity curve as defined in Specification 349,444, [Group III]. The promoter consists of one or, more of the elements magnesium, zinc,cadmium, boron, aluminium, titanium, zirconium, cerium, thorium, tin, molybdenum, tungsten, uranium or manganese, and may conveniently be employed as the oxide or hydroxide. A chromium catalyst containing boron or aluminium in an atomic ratio of 100:18 or 100:20 respectively is particularly mentioned. The example describes the treatment of a toluene fraction obtained from the carbonization of coal in vertical retorts and containing about 50 per cent hydrotoluenes, by passing it at a temperature of 475‹C. over a catalyst prepared by adding ammonia to a solution of chromium and aluminium nitrates in such proportions that the mixed hydroxides contain 20 atoms of aluminium to every 100 atoms of chromium, the hydroxides being then dried and reduced with hydrogen ; the product consists of substantially pure toluene. Specifications 293,906, [Class 2 (iii)], and 464,957, [Group III], are referred to.
Patent GB-351643-A (GB)
Title: Insertion for preventing the sticking or adhering of rubber sheets during the stamping operation
IPC: B29C37/00
Filed: 1930-04-28
Abstract: An insertion for preventing the sticking together of sheets of rubber during stamping consists of rubber, gutta, or balata, or mixtures, together with mineral fillers, resins, fats, waxes, &c. A suitable mix consists of 5 parts by weight of pale cre<\>zepe, 2,5 parts of white substitute, 0,3 parts of magnesia usta, 2,2 parts of chalk, 12 parts of feather alum, and 18 parts of paraffin.
Patent GB-1031884-A (GB)
Title: Process and apparatus for the concentration of dangerous solutions
Inventor: CHARUIT PIERRE
IPC: G21F9/08
Filed: 1963-04-02
Abstract: 1,031,884. Concentration of radioactive solutions. COMMISSARIAT A. L'ENERGIE ATOMIQUE. April 2,1963 [April 6, 1962], No. 13018/63. Heading B1B. [Also in Division G6] A radioactive solution is concentrated by introducing it through path f 1  into chamber B where the solution trickles down a set of vertical plates, and is contacted with a countercurrent stream of air f 2 . Dangerous droplets of solution are eliminated from the air before it is discharged from the apparatus into the atmosphere through fan V 2  by passing the air through cone frustum T into chamber C, which has a cross-sectional area which is larger than that of chamber B. The crosssection of the discharge-opening of chamber C is at least equal to that of the inlet-opening to the cham - ber. The concentrated solution flowing out of chamber B is collected in vessel A, and then pumped back to the top of chamber B via path f 1 . The liquid in vessel A is agitated by the provision of by-pass f 3  leading from the delivery side of the circulating-pump back to vessel A. The parts of the apparatus which come into contact with the solution may be made of plastic material.