baber/WOPTO huggingface dataset:
Patent GB-763217-A (GB)
Title: Colchiceine derivatives
IPC: A01N45/02
Filed: 1954-08-16
Abstract: The invention comprises compounds of the formula <FORM:0763217/IV(b)/1> where R is hydrogen, alkyl or acyl, R is hydrogen, acyl (other than acetyl as in Specification 762,706) or alkyl, and R11 is a substituted or unsubstituted alkyl radical. These are made from the N-acetyl compounds of Specification 762,706 by acid hydrolysis, followed if desired by insertion of the groups R and R1 by normal alkylation or acylation processes (including methane formation).  The hydrolysis may remove the group R as well as R1 (especially if a sugar residue is present as R), or alternatively the former may be split off by a previous alkaline hydrolysis; the acid hydrolysis may however affect only the group R1.  Similarly the subsequent treatment may affect only the amino group or both amino and hydroxyl groups; if the latter the group R may if desired be subsequently split off.  In addition the compound (R = R1 = R11 = methyl) may be obtained from natural "Substance F" (demecolcine) and methyl mercaptan or an alkali metal salt thereof.  The reactions are preferably carried out in a solvent at reflux temperature.  Examples show the production of the following compounds of the above formula: (1) R = R11 = methyl, R1 = H, from thiocolchicine, demethylthiocolchicine, thiocolchicoside and its tetracetate; (2) R = R1 = R11 = methyl, from N - dedecetyl - thiocolchicine; (3) R = R11 = methyl, R1 = formyl, from N-deacetyl-thiocolchicine; (4) R = H, R1 = formyl, R11 = methyl, from N - deacetyl - demethylthiocolchicine; (5) R = R11 = methyl, R1 = benzoyl, from N-deacetylthiocolchicine; (6) R = R1 = benzoyl, R11 = methyl, from N-deacetyldemethyl-thiocolchicine; (7) R = H, R1 = benzoyl, R11 = methyl, from N - deacetyl - O : N - dibenzoyldemethyl - thiocolchicine; (8) R = R11 = methyl, R1 = carbethoxy, from N - deacetylthiocolchicine; (9) R = H, R1 = acetyl, R11 = methyl, from N - deacetyl - demethylthiocolchicine; (10) R = methyl, R1 = H, R11 = ethyl, from ethylthiocolchicine; (11) R = R1 = R11 = methyl, additionally from natural "Substance F" (demecolcine) and methyl mercaptan.ALSO:Compounds of the formula: <FORM:0763217/I/1> where R and R1 are hydrogen, alkyl or acyl (R1 not being acetyl) and R11 is alkyl or substituted alkyl, are used for the modification of kayokinesis and the production of polyploids either by spreading aqueous solutions or suspensions on the soil or by pretreating seeds with the compounds alone or in a solvent or on a carrier.  Suitable compounds are mentioned.
Patent GB-792498-A (GB)
Title: Improvements in or relating to electrical connections
IPC: H01R13/20
Filed: 1955-08-18
Abstract: 792,498. Plug-boards; two-part couplings. AMP, Inc. Aug. 18, 1955 [Aug. 19, 1954], No. 23826/55. Class 38 (1). A socket connector for receiving a tapered pin 14, Fig. 7, comprises a normally cylindrical portion 26 which is integral with and rolled from a flat base portion 15 so as to have a free side edge. The connector is formed from heattreated beryllium copper and has a sharp edge at the entry end of portion 26 which engages the pin as it is inserted and scrapes the surface thereof clean during deformation of the socket into conformity with the pin. Fig. 5 shows a double-ended connector having a pair of socket portions 26 at opposite ends of the base 15 and located between ribs 11 on an insulating block 2 by means of lateral lugs 28, 30, 33. The lugs 28 may be integral with similar lugs on an adjacent double-ended connector so as to form multiple bridging connector, Fig. 6 (not shown). A number of insulating blocks 2 may be stacked one above the other as shown in Fig. 1 to form a multiple connector assembly, the blocks having interfitting, locating projections and recesses and being secured together by screws 7, 8. Double-ended and multiple socket connectors are mounted between the ribs 11, as shown, to provide straight-through connections between two sets of leads or to interconnect a set of leads brought to one face of the assembly, jumper connections being employed on the other face.
Patent GB-676933-A (GB)
Title: Improvements in methods of and apparatus for forming window and door lintels
IPC: B28B7/16
Filed: 1950-09-29
Abstract: 676,933. Moulding concrete lintels. O'SULLIVAN, E. Sept. 29, . 1950, No. 23957/50. Addition to 624,663. Class 87(ii) [Also in Group X] A lintel for windows, doors, &c. openings comprises three parts 51, 57, 58, Fig. 6, the parts 51 and 57 being separated by a layer 52 of lead or other damp-resistant material which extends beneath the part 58. A transverse cavity C extends between the parts, the ends of the cavity being in the form of vertical holes which communicates with the cavities between inner and outer walls 41, 42, which, as shown, are built up around a window frame 44. A mould for casting the lintel comprises (Figs. 1, 2 and 3) two sides 1, two ends 6, two adjustable locking-plates 11 for securing the ends and sides together, a core 21 and an adjustable two-part base-plate 31. The ends of the core are parallelepipedal in shape (but may be slightly tapered in thickness), and the centre is wedge-shaped. The lintel may be pre-cast, but as shown is cast in situ. In operation, the mould is mounted on the walls as shown in Fig. 5, the core 21 having its ends received between ribs 9 on the inside of the mould ends. The base-plate 31 rests at its ends on the wall, and its centre is supported by struts 45. The part 51 is then cast, the core 21 is removed, the lead sheet 52 is laid over the part 51 and along the bottom of the space that is to receive part 58, the core is replaced, and the parts 57, 58, are cast. The mould is then removed and the edges 55, 56 of the lead layer turned down. Specifications 594,897 and 612,871, [both in Group X], are referred to.
Patent GB-1042446-A (GB)
Title: Thread replenishing mechanism for sewing machines
IPC: D05B57/26
Filed: 1965-06-08
Abstract: 1,042,446. Sewing machines. H. G. C. FAIRWEATHER (SINGER CO.). June 8, 1965, No. 24073/65. Heading D1G. In a lockstitch sewing machine in which a looptaker bobbin is wound in situ, a loop deflector is provided for physically blocking the loopseizing beak automatically during threat replenishment to prevent loop seizure by said beak. The arrangement, which is a modification of that described in Specification 906,398, comprises a looptaker body 15 rigid with a rotary shaft 18 and journalled on a stationary bobbin case 17, a bobbin 31 journalled on a stud 29 carried by the bobbin case, and a bobbin driver rotatable with body 15 and shiftable to engage bobbin 37 for thread replenishment thereon. One leg of an L-shaped loop deflector 44 is secured to the bobbin driver and the other leg, during thread replenishment, moves adjacent the loop-seizing beak 16.
Patent GB-352774-A (GB)
Title: Improvements relating to electric selecting switches
IPC: H01H63/02
Filed: 1930-08-12
Abstract: 352,774. Automatic exchange equipment. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, GOODWIN, W. E., 72, Glyndon Road, Plumstead, and FORCEVILLE, E. A., 23, Fossil Road, Lewisham, all in London. Aug. 12, 1930, No. 24089. Addition to 322,652, [Class 40 (iv), Telephones &c.]. [Class 40 (iv).] In a bare wire multiple as described in the parent Specification the feeder strips are cut away at positions corresponding to multiple wires which are not to be bridged to the strips by the wiper, and in these positions the brushes bear on insulating material. As shown in the Figure, the brush 15, 16 makes contact between the feed strip 6 and the 2nd, 4th, 6th, &c., wires, whilst at the same time the brush 13, 14 makes contact between strip 6a and the 1st, 3rd, 5th, &c., wires. To prevent strip 6 being connected to the 1st, 3rd, 5th, &c., wires the strip is cut away in these positions allowing the brush to bear on the insulating strip 7. The strip 6a is cut away opposite the 2nd, 4th, 6th. &c., wires.
Patent GB-263539-A (GB)
Title: Improvements in or connected with gas fires or heaters
IPC: F24C3/02
Filed: 1925-09-29
Abstract: 263,539. Ward, T. E., and Ward T. E. Sept. 29, 1925. Atmospheric gas burners.-The burner of a portable gas stove comprises a tube s having slit orifices z increasing in depth towards the mixing. chamber w in order to equalize the flames.
Patent GB-660592-A (GB)
Title: Improvements in the manufacture of anisotropic permanent magnets and in alloys therefor
IPC: C22C38/12
Filed: 1948-09-16
Abstract: An iron-base alloy of the following composition Al 6-11 per cent; Ni 10-20 per cent; Co 16-30 per cent; Nb 0-10 per cent; Ta 0.5-12 per cent; Cu 0-7 per cent; Ti 0-5 per cent; Fe, and impurities, the remainder, is subjected to the action of a magnetic field while cooling through a temperature range from above the Curie temperature down to about 600 DEG C. or thereabouts. The alloy may then be magnetized in the direction of the magnetic field applied during cooling.  One or more of the elements W, Cr, Mo, V, Zr, Ca, Ce, Si may be present in the alloy up to 0.5 per cent of each and less than 1.0 per cent in total.  The alloy to be subjected to the heat treatment may have been cast in a mould in conditions in which heat is abstracted in substantially one direction only, this direction being parallel to the required magnetic axis.  Specifications 522,731 and 660,580 are referred to.
Patent GB-670080-A (GB)
Title: Improvements in or relating to nozzles for grease guns and the like
IPC: F16N21/04
Filed: 1948-09-16
Abstract: 670,080. Disconnectible couplings. TECALEMIT, Ltd., and LE CLAIR, C. C. S. July 28, 1949 [Sept. 16, 1948], No. 24383/48. Class 99 (i) A grease gun nozzle for use with resilient teats such as described in Specification 638,900 comprises in conjunction means consisting of a soft resilient ring 11, e.g. of rubber or felt, which is mounted within the nozzle or under the pressure of grease fed into the nozzle to apply pressure radially or laterally to the side of the teat so as to distort and open it and a hollow movable lubricant injector 4 which is then actuated by the pressure of grease fed into the nozzle to enter the passage in the teat. The nozzle comprises inner and outer sleeves 1, 7 respectively which are relatively movable to distort the ring 11. In a modification, Fig. 2 (not shown), the outer sleeve is integral with the grease gun and a hollow piston is slidable therein, under the pressure of the grease, to compress the ring 11, the injector being slidably mounted in the piston.
Patent GB-170728-A (GB)
Title: Improvements in or relating to a method and apparatus for the measurement of the temperature of electric cables
IPC: H01B7/32
Filed: 1920-08-23
Abstract: 170,728. Fawssett, E. Aug. 23, 1920. Thermometers.- In apparatus for measuring the core temperature of an electric cable, the temperature of the lead or other covering or sheath of the cable is directly measured, and the difference between the temperatures of the core and the sheath is indirectly measured, these measurements being added to give the required temperature of the core. The difference between the temperature of the core and sheath. is reproduced in an artificial cable comprising a heater E, of material having a temperature coefficient similar to that of the core, ,and a bath F consisting of layers of paper impregnated with grease or other semi-solid mixture, the thermal constants of which are such as to give the, same temperature gradient between the heater E and the container G as that existing in the real cable. Alternatively the heater may form the core of a short length of miniature cable, having the same thermal constants as the cable under observation. For alternating currents the heater E may be placed in series with the usual switchboard ammeter C energized from a current transformer D, the primary winding of which is in series with the core A of the cable. For direct currents, the heater may be placed in a shunt circuit. In the arrangement shown thermo-junctions H, J, in the centre of the bath F and on the container G respectively, are used to measure the temperature difference between the heater E and container. In series with the thermo-junctions H, J is a thermo-junction K, measuring the temperature of the sheath B, and a millivolt meter L or other instrument calibrated to read the actual temperature of the core- A junction M kept at a constant temperature by a thermostat or by means of ice may be used to provide a reference temperature for which the instrument L is set. In a modified arrangement the thermo-junctions are replaced by resistance thermometers connected to a wheatstone bridge.
Patent GB-475000-A (GB)
Title: Improvements in guiding rollers for strip-shaped records, for use for instance in television and sound film apparatus and optical systems employing such rollers
IPC: H04N5/64
Filed: 1936-09-08
Abstract: 475,000. Sound - film apparatus. ZEISS IKON AKT.-GES. Sept. 8, 1936, No. 24494. Convention date, Oct. 12, 1935. [Class 40 (ii)] [Also in Group XL] Relates to an optical system for television or sound-film apparatus in which a scanning, - reproducing or recording light beam is to be passed through a record carrier as it passes round a guiding roller. According to the invention, at least that portion or region of the guiding roller through which the scanning, reproducing or recording light beam passes comprises a solid body of transparent material, e.g. glass or artificial resin, extending over the whole cross-section of the roller. Fig. 1 shows one form of roller which consists of a cylindrical glass body 1 provided at each end with a glass or metal shoulder 2 for laterally guiding the film 3. The shoulder nearer to the driving mechanism may be made so heavy, e.g. of lead, or so large that it acts as a flywheel. According to modified constructions, Figs. 3-6, (not shown), the central part of the roller may be undercut or the surface of the glass body may be made concave or convex. The roller may also be mounted on a shaft carrying a large and/or heavy flywheel. Fig. 7 shows an optical system in which a line-like slit 13 is illuminated by a light source 11 through the condenser 12, the slit being reproduced on the film 3 by means of the guiding roller 1 acting as a cylindrical lens. The light modulated by the film passes to a photo-cell 14. A slit-like stop 15 secured to the projector housing 16 is arranged as shown between the roller and film so as to cut off the marginal rays. According to a modification of this system, Fig. 9 (not shown), the slit 13 is reproduced on the film 3 by a suitable lens, the guiding roller 1 being arranged behind the film. Fig. 8 shows a further modification of the system shown in Fig. 7, adapted for television film reproduction in which the modulated light issuing from the film 3 is reproduced by lens 20 on the scanning disc 19 and from there on to the photocell 14 by a further lens 17. If desired, the disc 19 may be replaced by some other form of analyzing device, such as rotating mirrors or prisms. The slit 13 may also be replaced by a suitable light source (strip or wire shaped).
Patent GB-259246-A (GB)
Title: Improvements in or relating to demountable structures
IPC: E04C3/08
Filed: 1926-10-04
Abstract: 259,246. Parker, L. M. Oct. 2, 1925, [Convention date]. Struts and tie-rods.-A demountable truss or girder, Fig. 1, is built up of a number of equal bars A, Fig. 3, provided at their ends with detachable union plates B in which are formed two or more bolt holes B<1>, B<2>, or plain or scalloped slots F', Fig. 7, to permit variation in the effective length and corresponding change in shape of the structure. The plain slots may be marked with graduations, and a distinctive marking may be placed against certain bolt holes such as B<1>. Other bolt holes may be formed off the centre line. The union plates may be secured to the bars by bayonet-joints or otherwise.
Patent GB-424505-A (GB)
Title: Improvements in printing apparatus
IPC: B41F17/10
Filed: 1933-09-07
Abstract: 424,505. Printing. EDGE, J. W., 526, Stanley Road, Bootle, Liverpool, and LIVERPOOL ELECTRIC CABLE CO., Ltd., 7, Playhouse Yard, Golden Lane, London. Sept. 7, 1933, No. 24753. [Class 100 (ii)] Printing-surfaces; inking-apparatus; printing on curved surfaces.-Numerals or other symbols are printed on flat or curved surfaces by means of a hollow printing-wheel adapted to contain ink, the rim of the wheel being adapted to guide and positively locate the surfaces during the printing operation. As shown for printing on electric cables, a detachable annular rim 4 shaped to fit a circular cable is clamped between discs 1, 2 by screws 3, the wheel thus formed being rotatably mounted in association with a machine for covering cables by the extrusion process. Grooves 5 representing the symbols are cut in the surface of the rim, and ink is supplied to the grooves by apertures 7 extending into an ink chamber 6. The ink supply may be assisted by threads 5<a> passed through the apertures and laid along the grooves. Alternatively, ink may be supplied by an absorbent pad fitted inside the wheel.
Patent GB-965603-A (GB)
Title: Copper borate antifouling pigment
IPC: C09C1/30
Filed: 1962-06-29
Abstract: A pigment comprises particles having a silica core coated with cupric borate, the silica being from 25 to 75% by weight of the pigment and the silica particles being within the size range of from 1 to 20 microns. The pigment may be prepared by mixing the silica particles with the copper salt of an acid which forms a water-soluble salt with caustic alkali, adding caustic alkali to give a mixture of pH at least 8, filtering and removing the water-soluble salt, adding water to the filtered solids to form a thick paste to which boric acid is added, and drying the resulting paste at a temperature not exceeding 130 DEG  C.  In an example, silica (10-60 microns) and CuSO4.5H2O were wet ground in a ball mill to a particle size of 1 to 20 microns. The slurry was heated to 60 DEG  C. and aqueous sodium hydroxide was added while stirring to give a mixture of pH 9.2.  The mixture was filtered and the filter cake, after washing, was slurried and mixed with an aqueous slurry of boric acid.  The resulting mixture was ovendried at 120 DEG C. before being ground.  Paint formulations incorporating the pigment are given.ALSO:Antifouling and mildew-resistant paint formulations incorporate a copper borate-coated silica pigment.  A typical mildew-resistant paint formulation comprises 59.8% pigment, consisting of 24.3% composite lead sulphatelead silicate pigment, 18.3% zinc oxide, 18.3% rutile, 36.1% magnesium silicate, 3.0% copper borate-coated silica, and 40.2% vehicle, consisting of linseed oil, volatile petroleum solvent, and drier.ALSO:Antifouling and mildew-resistant paint formulations incorporate a copper borate-coated silica pigment.  A typical mildew-resistant paint formulation comprises 59,8% pigment, consisting of 24,3% composite lead sulphate-lead silicate pigment, 18,3% zinc oxide, 18,3% rutile, 36,1% magnesium silicate, 3,0% copper borate-coated silica, and 40,2% vehicle, consisting of linseed oil, volatile petroleum solvent, and drier. The paint may be applied to cedar panels.
Patent GB-797273-A (GB)
Title: Improvements in or relating to spray nozzles
Inventor: BARKER CLIFFORD LEWIS
IPC: E03C1/086
Filed: 1954-08-28
Abstract: 797,273. Nozzles. WALKER CROSWELLER & CO., Ltd. Nov. 28,1955 [Aug. 28, 1954; Oct. 1, 1955], Nos. 25047/54 and 27996/55. Class 69 (3). Liquid fed to the inlet end 5 of a nozzle body 1 passes through a duct 8 and radial passages 9 in a plug 7 integral with a cup-shaped member 2 and strikes the inner wall of the member 2 before passing through a spray plate 3. The member and plate are detachably secured to the nozzle body by a collar 4. In Fig. 3, the plug 13 screws into a partition 11 integral with the nozzle body, and a spray plate may be provided as in Fig. 1.
Patent GB-391668-A (GB)
Title: A sealing washer or ring
IPC: F16B43/00
Filed: 1932-09-10
Abstract: 391,668. Washers. BRYANT, O. C., 73, Barclay Road, Bearwood, Birmingham, and JEPHCOTT, A. C., Hill Corner, Penn, Wolverhampton. Sept. 10, 1932, No. 25248. [Class 89 (i).] A soft-metal sealing-washer 8 for use in connection with nails, screws, or bolts 4 which are used to secure sheet material 1 such as corrugated iron plates are formed with fineedged shanks 7, which pass completely through the hole cut in the material, and with flanged heads 8 which bear against the outer surface of the sheet.
Patent GB-260567-A (GB)
Title: Improvements in methods of producing or reactivating active carbon
IPC: C01B32/336
Filed: 1926-10-11
Abstract: 260,567. Verein f³r Chemische Industrie Akt.-Ges., (Assignees of K³chler, E.). Oct. 27,1925, [Convention date]. Charcoal. - Active carbon is produced or re-activated by gases containing oxygen which are introduced, in part directly and in part by diffusion into the activating chamber. The walls of the latter may be made of porous refractory material such as fire-clay or of iron which at incandescence is sufficiently permeable. The activating chamber may be heated externally by furnace gases, care being taken that they contain sufficient free oxygen for the diffusion process. In the apparatus shown in the Figure, a container A is heated electrically by means of a jacket B in such a way that air can pass between the jacket and the container. The material to be activated, e.g. wood charcoal, rests upon a perforated base plate C which is supported by a pipe D carried on a withdrawable damper E which enables the activated product to be discharged. During the diffusion process gases containing oxygen are introduced directly through the inlet G but in insufficient quantity to effect activation by themselves. Active carbons for different purposes may be produced by varying the thickness of the carbon layer, the speed and duration of the diffusion of the oxygen and also the temperature of the activation. The quantity of the gases containing oxygen that is supplied may be controlled by varying the pressure or suction used to introduce the gases which may be supplied continuously or intermittently. Specification 228,954 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the agglomeration of the carbon by means of a binder, such as woodtar, before it is activated. This subject-matter does not appear in the Specification as accepted.