baber/WOPTO huggingface dataset:
Patent GB-363644-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1930-09-20
Abstract: A mixed vulcanization accelerator consists of a reaction product of a di-nitro halogen-substituted aryl hydrocarbon and a mercaptoarylthiazole or metallic salt thereof together with a Schiff's base or an aliphatic aldehyde derivative thereof.  As examples are 2,4-dinitrochlorbenzene reacted with the sodium salt of mercaptobenzothiazole and used in conjunction with (1) the formaldehyde derivative of the dehydrated reaction product of substantially 3 mols. of acetaldehyde and 2 mols. of aniline, (2) the compound formed by the reaction between 3 mols. of acetaldehyde and 2 mols. of aniline, (3) the reaction product of substantially 3 mols. of butyraldehyde and 1 mol. of aniline, (4) a formaldehyde-aniline condensation product, (5) heptaldehyde-aniline, (6) the product formed by heating at 70 DEG  C. the butyraldehyde derivative of butylidene-aniline (from 3 mols. of butyraldehyde and 1 mol. of aniline) with the formaldehyde reaction product of the dehydrated acetaldehyde derivative of polymerized ethylidene aniline. Crotonaldehyde aniline, acrolein-aniline and propionic aldehyde aniline and the like may be employed with the above compound or with 2.4-dinitrotolyl-tolylthiazyl sulphide and analogous compounds. Specifications 251,005 and 316,932, [both in Class 2 (iii), Dyes &c.], are referred to.ALSO:A mixed accelerator consists of a reaction product of a dinitro halogen substituted aryl hydrocarbon and a mercapto aryl thiazole or metallic salt thereof together with a Schiff's base or an aliphatic aldehyde derivative thereof.  As examples are 2.4-dinitrochlorbenzene reacted with the sodium salt of mercapto benzothiazole and used in conjunction with (1) the formaldehyde derivative of the dehydrated reaction product of substantially 3 mols. acetaldehyde and 2 mols. aniline, (2) the acetaldehyde derivative formed by the reaction between 3 mols. of acetaldehyde and 2 mols. of aniline instead of the equimolecular proportions necessary for the Schiff's base, (3) reaction product of substantially 3 mols. butylaldehyde and 1 mol. aniline, (4) formaldehyde-aniline condensation product, (5) heptaldehyde-aniline, (6) the product formed by heating at 70 DEG  C. substantially 45 parts of the butylaldehyde derivative of butylideneaniline (3 mols. butylaldehyde and 1 mol. aniline) with 60 parts of the formaldehyde reaction product of the dehydrated acetaldehyde derivative of polymerized ethylidene aniline. Crotonaldehyde aniline, acrolein-aniline, and propionic aldehyde aniline and the like may be employed with the above compound or with 2.4-dinitrotolyltolyl thiazyl sulphide and analogous compounds.  Specifications 251,005 and 316,932, [both in Class 70, Indiarubber &c.], are referred to.
Patent GB-246801-A (GB)
Title: Improvements in or relating to aerial propellers
IPC: B64C11/22
Filed: 1925-11-09
Abstract: 246,801. Soc. Anon. Nieuport-Astra. Jan. 31, 1925, [Convention date]. Screw propellers.-Flexible screw propellers are made up of metal laminations a, b of decreasing length, which are twisted to form the pitch angles, and have slight relative curvatures along their length when free. The leaves are united at the centre and may be of different thicknesses.
Patent GB-706024-A (GB)
Title: Improvements in or relating to studs for boots, shoes and like footwear
IPC: A43C15/16
Filed: 1950-11-17
Abstract: 706,024. Studs for footwear. FUSSELL, E. G., CHAMPION C. B., WILLIAMS, C. R., and HILL, A. T. Feb. 14, 1952 [Nov. 17, 1950], No. 28203/50. Class 17(3) Studs for sportswear comprise a stepped projecting stud portion 10 of rubber and a surrounding base flange 11, the crosssection adjacent the base being greater than that at the tip of the stud. The portion 10 may be slightly tapered over the whole or part of its length and fillets may be provided at the angles of the steps and at the junction of the porticn 10 with the base 11. Canvas reinforcement 22 may be embedded in the stud and applied to the base of the flange.
Patent GB-1063125-A (GB)
Title: Reciprocating internal combustion engines
Inventor: EHRLICH JOSEF
IPC: F02B25/00
Filed: 1964-07-08
Abstract: 1,063,125. Two-stroke engines. BRISTOL SIDDELEY EHRLICH ENGINEERING Ltd. July 7, 1965 [July 8, 1964], No. 28203/64. Heading F1B. A two stroke crank-case compression engine has piston ports 11 co-operating with ports 10, 9, at the ends of transfer passages 8. On the working stroke port 11 first opens port 10 while port 9 is closed by the piston and partially compressed charge is stored in the passages 8. Port 11 is reclosed by the cylinder wall and then port 10 is uncovered by the top of the piston before port 11 opens port 9, so that the compressed charge in passages 8 expands into the cylinder space. When port 11 uncovers port 9, the compressed charge is transferred from the crankcase through passages 8.
Patent GB-963891-A (GB)
Title: Jointing of metallic elements
Inventor: HARRIS DAVID PERCIVAL
IPC: B62K19/20
Filed: 1959-08-19
Abstract: 963,891. Brazing. RALEIGH CYCLE CO. Ltd. Aug. 10, 1960 [Aug. 19, 1959], No. 28278/59. Heading B3R. In brazing a tubular metal part to a second metal member, there is employed a jointing element of sintered material impregnated with brazing metal shaped to have surface contact with the inner surface of the tube and with a surface of the second member and having one or more material receiving cavities large relative to the pore size of the sintered material, each such cavity being filled with solid brazing metal and the brazing material is melted to effect brazing. A shaped plug 14, Fig. 1, of sintered iron impregnated with brass and having a cavity with brazing metal 16 is fitted into the end of a tube 11 to be joined to a tube 12 of a cycle frame and the joint is heated in protective atmosphere or flux to fuse the brass and effect brazing. A number of through holes 19, Fig. 2a, are provided in the plug to house brazing material. Two tubes may be joined end to end with a plug which engages the end of each tube. According to the Provisional Specification, a flanged sleeve may be used for saddle joints.
Patent GB-1192930-A (GB)
Title: Improvements in or relating to Encoding and/or Decoding Signals, e.g. as applied to a System for Transmitting a Varying Voltage Spectrum
IPC: H03M1/00
Filed: 1967-06-19
Abstract: 1,192,930. Encoding and decoding. TELEFONAKTIEBOLAGET L. M. ERICSSON. 19 June, 1967 [17 June, 1966], No. 28282/67. Heading G4H. A plurality of electric signals are encoded by determining the largest and encoding the remainder of the signals relative to it. Decoding is effected by attenuating signals corresponding to the encoded signals by an amount corresponding to the largest signal. In the embodiment described for transmitting a varying frequency spectrum e.g. a voice frequency spectrum encoding and decoding is effected by (1) periodically scanning the spectrum to produce analogue signals, the amplitudes of which correspond to determined abscissae of the input signal (2) comparing these signals in comparators A1 . . . A18 (Fig. 1) with a reference signal which has its maximum value at the start of the scanning period and decreases exponentially, to give differentially timed output signals, the first of these (representing the largest amplitude input) inhibiting a counting chain F which has received clock pulses from a source KL from the start of the scanning period and enabling further counting chains L1 . . . L18 (each associated with a comparator A1 . . . A18) to count clock pulses until they receive signals from their associated comparators (3) transmitting the counts in the counters F, L1 . . . L18 to associated stores at the receiver (4) converting the count in the first store (representing the largest amplitude signal) to an analogue voltage using attenuators to which is applied a reference voltage E RM  corresponding to the maximum value of the input reference signal, the attenuators being selectively brought into use under the control of the number stored and (5) applying this attenuated voltage to the attenuators of the D-A converters AK1 . . . AK18 associated with the remaining stores so that it is further attenuated in accordance with the numbers stored. The counting stage associated with the comparator to which the highest amplitude voltage was fed transmits a zero signal to the receiver (since the associated counter chain is disabled by the signal from the associated comparator before any clock pulses may be fed to the counter chain) so that at the receiver the output signal from the first D-A converter AKM (representing the highest amplitude signal) is not attentuated by the associated D-A converter and consequently the maximum amplitude voltage is transmitted on its correct output.
Patent GB-741870-A (GB)
Title: An improved method for the production of chlorine-containing polyether polyepoxides
IPC: C08G65/28
Filed: 1952-11-10
Abstract: Chlorine-containing polyether polyepoxides are made by reacting polychlorhydrin ethers of polyhydric alcohols in acetone solution with solid caustic soda in amount corresponding to about 65-85 per cent of that equivalent to the total chlorine content of the polychlorhydrin.  The polychlorhydrin ethers may be made by reacting epichlorhydrin with polyhydric alcohols and a preferred starting material is made by reacting 3 mols. of the chlorhydrin with 1 mol. of glycerol.  Only about two thirds of the total chlorine content of the polychlorhydrin ethers is in an "active" form to react with caustic soda to produce epoxides i.e. is on a carbon atom adjacent to a hydroxyl group, and preferably just this equivalent amount of alkali is used.  At the end of the process excess caustic soda is advantageously neutralized by the addition of an acid such as hydrochloric acid before solvent removal.  In an example caustic soda is added in portions to an acetone solution of the preferred starting material so as to maintain a temperature of 47-60 DEG  C. the product finally being heated at 50-60 DEG  C. for a short time before isolation. Specification 679,536 is referred to.
Patent GB-741781-A (GB)
Title: Improvements in and relating to a stationary bearing including an endstone, for pivots, chiefly for clockwork pivots
Inventor: COLOMB, HENRI
IPC: G04B31/04
Filed: 1953-10-14
Abstract: 741,781. Watch bearings. COLOMB, H. Oct. 14, 1953 [Oct. 17, 1952], No. 28288/53. Class 12 (1). A bearing, particularly for watch pivots, comprises a pierced member 3 and an abutment member 6 held together in a recess in a support 1 by means of an annular elastic member 7 surrounding the member 6 and having two diametrically opposed inwardly directed projections 7a bearing against a flange 5a of the bezel of the member 6 and two outwardly directed fingers 7b which engage slots 9 in the wall of the support 1. The bezel 4 of the pierced member 3 has a flange with a frusto conical surface 4b which bears against a conical surface on the support 1. The bezel 5 is seated in a recess in the bezel 4. Recesses 10 are formed in the member 7 in which a tool may be inserted to rotate the member when assembling. In a modification the fingers 7b engage a groove 29, Fig. 5, in the wall of a housing 13. In another modification the pierced member 3 is arranged directly in the housing 1, Fig. 8, and the bezel 5 located in a shallow recess in the member 1. In a further modification the bezel 4, Fig. 9, has a collar 4d which is located centrally within a projection 1d formed at the edge of the recess.
Patent GB-786637-A (GB)
Title: An improved knitted elastic stocking
Inventor: RAYNOR HARRY AVERY
IPC: D04B9/52
Filed: 1954-10-01
Abstract: 786,637. Knitting. EVERLASTIC, Ltd. Sept. 13, 1955 [Oct. 1, 1954], No. 28300/54. Drawings to Specification. Class 74 (2). An elastic stocking has the pitch of the laid-in elastic yarn closer in the calf and instep than in the sole. The stocking, knitted of rib formation, may have the elastic yarn introduced every other course throughout the knitting of the whole stocking but in the calf and instep portions the rib or plain wales may be composed of tuck stitches or incorporate floats such that the fabric is constricted and the courses of laidin elastic yarns are consequently disposed closer together. Alternatively the courses may be knitted such that the elastic yarn is laid-in every course in the calf and instep and in every other course in the sole. Specification 467,659 is referred to.
Patent GB-233616-A (GB)
Title: Improvements in or relating to spindles for spinning and twisting and like textile machines
IPC: D01H7/04
Filed: 1924-11-26
Abstract: 233,616. Honegger, H. Nov. 26, 1924. Friction gearing.-Relates to spindles for spinning, twisting and like textile machines of the kind wherein antifriction members, such as balls or rollers, are mounted in a driven cage and effect the driving of the spindle blade at a different speed from that of the cage by reason of their contact therewith and with a fixed surface. The blade 7 is provided with at least one conical surface which engages balls or like members 6 in a cage or tube 3 driven by a wharl so that it is driven and supported solely by the balls without the use of thrust bearings. The taper surfaces in the fixed sleeve 8 with which the balls engage are so arranged that there is only a rolling movement and no slipping movement of the balls. The sleeve is resiliently held by a spring 9. In the modification shown in Fig. 5, the bore of the fixed sleeve is cylindrical and the blade is provided with a number of conical surfaces 7a. If the thrust of the driving member is upwards, as in the wormgearing drive shown in Fig. 4, the cage is provided with a thrust bearing 11<a>.
Patent GB-1023282-A (GB)
Title: Biochemical process for the production of a riboside
IPC: C12P19/30
Filed: 1963-07-18
Abstract: 5 - Amino - 1 - b  - D - ribosyl - 4 - imidazole - carboxamide is prepared by aerobically culturing in a culture medium an artificially induced biochemical mutant of a species of the genus Bacillus capable of producing the product extracellularly, said culture containing one or more purine bases or a derivative thereof, a source of assimilable carbon, and one or more inorganic salts, the culturing being carried out at 25 DEG  to 40 DEG  C. and a pH value of 5.0 to 8.0.
Patent GB-922545-A (GB)
Title: A device for measuring the area of plane objects having an irregular shape
IPC: G01B11/28
Filed: 1961-08-08
Abstract: 922,545. Area-measuring machines. STROJOSVIT NARODNI PODNIK. Aug. 8, 1961 [Sept. 6, 1960], No. 28562/61. Class 106 (1). The areas of hides 1 and other plane objects are measured by passing them on a translucent conveyer 2 over an elongated light source 4 and beneath a series of glass or other lightconducting rods 5 whose upper ends are uniformly distributed around a rotating cylinder 6 slotted at 7. Since the cylinder 6 is rotated through gearing 12 in accordance with the linear speed of conveyer 2, a photo-cell 8 receives pulses corresponding to those rods 5 which are not blacked out by the material 1. To give a direct reading of area, comparison pulses are produced by the apertured rotating cylinder 9 coupled to cylinder 6 and co-operating with light source 11 and photo-cell 10, the two sets of pulses being passed to a counter 13.
Patent GB-722427-A (GB)
Title: Improvements in or relating to corrosion resistant steel springs and spring materialand methods for making same
IPC: G04B1/14
Filed: 1951-12-06
Abstract: Steel springs and spring material having good corrosion resistance and high elastic modulus and tensile strength are manufactured by quench-annealing an unstable austenitic alloy from 950-1200 DEG  C., the alloy containing Fe as its principal constituent, 6-10 per cent of Ni, 12-20 per cent Cr, at least one of the ferrite-forming elements Si up to 2 per cent and Mo up to 3 per cent, there being present at least 0.8 per cent Si and/or at least 0.4 per cent Mo, cold working in a number of steps without intermediate annealing with a total cross-sectional reduction of at least 70 per cent and tempering the alloy at 350-550 DEG  C. to achieve the spring properties, the proportion of austenite-forming elements to ferrite-forming elements being such as to effect substantially no transformation of austenite below 70 per cent reduction but a substantial transformation to a ferro-magnetic phase thereabove.  The alloy may also contain C up to 0.3 per cent, Ti 0.4-30 per cent, one or more of Nb, Ta, V, W, Cu, Co up to 1.5 per cent each and Mn up to 3.0 per cent.  The following ranges of alloys are referred to: C 0.07-0.25, Si 0.8-1.3, No 0.8-0.3, Mn 0.7-3.0, Cr 17.0-19.0, Ni 7.0-9.0, Fe remainder; C 0.1-0.2, Si 1.1-1.2, Mo 0.8-0.9, Mn 0.9-1.0, Cr 18.0-19.0, Ni 8.0-9.0, Fe remainder and C 0.1-0.2, Si 0.4-0.5, Mo 1.0-2.0, Mn 0.1-0.2, Cr 17.0-18.0, Ni 9.0-10.0, Fe remainder, all proportions being per cent by weight.
Patent GB-860275-A (GB)
Title: An improved method and machine for forming hinged and toothed metal binding strips fo
Inventor: KAMPER ANDREW MATHIS
IPC: B21D53/40
Filed: 1958-09-05
Abstract: 860,275. Hinges and pivots; spiked strips. NO-NAIL BOXES Ltd. Sept. 7, 1959 [Sept. 5; 1958], No. 28659/58. Classes 65(2) and 89(2). [Also in Group XXII] A hinged and spiked binding-strip for boxes, &c. comprises two metal-strips A, B, connected along one edge by hinge-butts 31, 32, and having spikes 2411, 2511 along the opposite-edges. Escape of the hinge-pin, (not shown), may be prevented by clinching one or more of the hinge-butts.
Patent GB-1510946-A (GB)
Title: Process for burning carbonaceous materials
IPC: F23C10/10
Filed: 1976-07-09
Abstract: 1510946 Fluidized-bed combustion METALLGES AG 9 July 1976 [5 Sept 1975] 28750/76 Heading F4B A process for combustion under approximately stoichiometric conditions in which carbonaceous material is fed through a lance 7 to a fluidized-bed reactor 1 which is fluidizedby gas supplied through an inlet 8 and by a secondary gas supplied through an inlet 2 or which can be supplied at a plurality of superimposed levels (2a-2d), Fig. 2 (not shown). At least the secondary gas contains oxygen for the combustion of the carbonaceous material in the fluidized bed. The volume ratio of fluidizing gas supplied at 8 to secondary gas supplied at 2 is in the range from 1 : 20 to 2 : 1 and the two gas supplies are adjusted so that suspension density of the fluidized bed above the inlet 2 level is in the range 15 to 100 Kg/M<SP>3</SP>. Solids entrained by the exhaust gas from the fluidized-bed are collected in the separator 6 and are recycled through a conduit 9 back into the reactor 1. Surplus solids produced are withdrawn through a conduit 10. Part of the heat of combustion is dissipated through cooling surfaces 3 in the space above the inlet 2 level. Other heat heat exchange surfaces may be located at positions 4 and 5 in the reactor and separator. Solids discharged from the conduit 10 may be fed to a fluidized-bed cooler 14, which is fluidized by oxygen containing gas which is then fed to the inlet 2. The cooler 14 has cooling registers 13 in which solids are cooled indirectly by gas supplied through a conduit 17 and later fed as fluidizing gas to the inlet 8. Part of this gas supply may be used for pneumatically feeding the carbonaceous material through the lance 7. The combustion process may be carried out under superatmospheric pressure.
Patent GB-1176934-A (GB)
Title: Dust Extraction from a Creel Unit for a Winding Machine
Inventor: HOOD VERE EDWARD
IPC: D01H11/00
Filed: 1966-06-28
Abstract: 1,176,934. Cleaning creels for winding machines. FAN SYSTEMS Ltd. 8 May, 1967 [28 June, 1966], No. 28950/66. Headings D1F and D1J. A creel for a winding machine accommodates bobbins on trays, disposed at the same level around, but perhaps different distances from the vertical axis of a supporting pole and carried on radially projecting arms. The supply yarns are withdrawn through guides e.g. eyelets, each supported by a bar vertically above the centre of a tray. The pole and the arms and bars are surrounded by a conduit 21, radial ducts 24, inlet pipes 25 spaced therefrom to form interconnected passages for dust &c.- laden air in the regions of ballooning yarns to flow through the open ends of pipes 25, perforations in the undersides of the trays leading to ducts 24, and the open ends of hollow radially projecting fins 22 and 23, which may be of different length, into conduit 21 thence via a connection at 21A to suction and air filtering apparatus (not shown).
Patent GB-691075-A (GB)
Title: Improvements in and relating to agricultural mowing machines
IPC: A01D34/28
Filed: 1950-11-28
Abstract: 691,075. Mowing machines. BUSATIS, P., NEVELING, P., and VOGT, H. Nov. 28, 1950 [Nov. 28, 1949], No. 29042/50. Class 6(iii) A cutter bar 11 is supported on a mowing machine or tractor by means of a rigid frame 2, 3, 4, 5, the hinge supporting stirrup I of the cutter bar being rotatably mounted at one of its ends on the frame and adjustably supported on the frame at the other end. As shown the supporting stirrup is provided with a tubular peg 7 rotatably supported in the tube 2. The rear of the stirrup is supported by a crank pin 10 carried on a shaft 9 the position of which is adjustable by means of a hand lever 8 to alter the angle of cut of the cutter bar. The cutter bar 11 is raised by means of a rope 17 attached to a lever arm 15 and which co-operates with a cam disc 19 mounted inside the tube 2. The rope 17 is operated bv means of a winch mechanism 18. The device is attached to a mowing machine or tractor by means of ball joints 20, the tube 2 being provided with a locking bolt 21 to retain the frame in position.
Patent GB-483740-A (GB)
Title: Improvements in or relating to electrical control apparatus for radio transmitters and the like
IPC: G01S1/02
Filed: 1936-10-26
Abstract: 483,740. Thermionic relay circuits. MARCONI'S WIRELESS CO., Ltd., and CLOUGH, N. H. Oct. 26, 1936, No. 29094. [Class 40 (v)] To obtain cyclic operation of a number of relays, the relays are controlled by separate relaxation oscillators and each relay on operating opens the circuit of the last operated relay and closes the circuit of the next oscillator. As shown in the Figure when the current supply is connected up all the condensers C1 . . . C4 commence to charge and eventually one of the neon lamps, say, for example. N3, breaks down first and relay W3 energizes and looks, opening the circuits for condensers C1, C3 and C4. Condenser C2 now charges and after its time period neon tube N2 flashes and relay W2 pulls up and locks. The circuit of W3 is opened and condenser Cl begins to charge. The process is repeated the relays W1, W4, W3, W2 operating in turn. As described the relays close circuits X and Y in turn, these circuits controlling the modulation of overlapping wireless beams to give an A, N or E, T directing signal. Circuits in which the relay contacts close circuits in both back and front positions are also described. Specification 457,771 is referred to.