baber/WOPTO huggingface dataset:
Patent GB-442328-A (GB)
Title: Improvements in and relating to the manufacture of sliding-clasp fasteners
IPC: A44B19/46
Filed: 1935-03-04
Abstract: 442,328. Sliding - clasp fasteners. REITER, B., 4, Fountayne Road, Stoke Newington, London. March 4, 1935, No. 6796. Convention date, March 5, 1934. [Class 44] A sliding-clasp fastener stringer has the elements clamped thereon by means of a continuously moving pair of toothed wheels, the teeth of which oppose one another but do not mesh, so that opposite intertooth spaces form pockets to receive the elements the legs of which are then pressed together to effect the clamping by the contraction of such pockets on approaching the point of tangency ; the wheels are grooved to receive the usual beaded edge of the stringer tape and the elements are pressed down on this beading by a leaf spring. The apparatus shown, which is the same as that described in Specification 442,358, feeds and clamps a predetermined but variable number of fastener elements on the two tapes, applies the top stops, pulls the two tapes through an automatically positioned slider, applies the bottom connecting stop, and severs the completed and engaged fastener. The elements are clamped on the two tapes 3, 4, by the two pairs 5, 6 o f continuously moving g wheels having their teeth opposing but not meshing, the elements being fed from shoots to lie with their legs in two oppositely facing tooth spaces. The subsequent contraction of these intertooth pockets at the point of tangency clamps the legs of the elements to the tapes. The control apparatus for giving a series of fasteners of any required length is shown in Figs. 3 and 4 and comprises ring members 63 mounted on top of the toothed wheels 5, 6 and carried round thereon until a projection 66 encounters a stop 70. A stud 74 can be inserted at any desired point along the ring member and in the course of travel of the ring actuates a tappet wedge 78 which briefly rocks a lever 82 thereby to raise the stop 71 restraining the next ring 63 which is thus released. This second ring in turn briefly rocks the lever 83 to release the third ring which similarly releases the fourth ring and this last ring in turn releases the first ring so that the series of actions continue. The rocking of the levers briefly closes an electric switch whereby a pin is briefly inserted in the feed shoots for the elements ; the resulting brief interruption of the feed of elements gives the spacing between successive fitted lengths of stringers. The tape is cut off, at points 46 not supplied with fastener elements, by a cutting device which is released when a feeler device 45 is lifted by the first element of a succeeding series.
Patent GB-577247-A (GB)
Title: Improvements in diversity reception of frequency modulated signals
IPC: H04B7/12
Filed: 1944-04-13
Abstract: 577,247. Wireless receiving circuits. DEHN, S. G. (Press Wireless, Inc.). April 13, 1944, No. 6842. [Class 40 (v)] A diversity reception system for frequency modulation has means for reducing the efficiency of the channel bearing the weaker signal, the means being operative at a stage prior to the frequency discriminator. In Fig. 1 separate diversity aerials A, B feed two channels comprising radio receivers 1a, 1b, limiters .2a, 2b, and discriminator detectors 6a, 6b, the detected outputs being fed to a common combining network 7 and reproducer 8. Part of the I.F. output from each channel is fed to amplifier-rectifier-filter units 3a, 3b to produce direct voltages corresponding to carrier strength which are compared in a differential comparison network 4 to give an output which is zero when the carrier strengths are equal and has opposite sign according as which channel bears the stronger signal. This output is fed through D.C. amplifiers 5a, 5b in a sense to quench the channel bearing the weaker signal. As the A.V.C. circuits of the receivers la, 1b are tied the difference in the I.F. outputs is already made greater than the difference in the R.F. inputs. High speed electronic or other switching may be used to connect the reproducer to the channel having the stronger signal. In a modification, Fig. 2 (not shown), the limiter and the discriminator-detector are common to both channels and are arranged after the combining network. Alternatively the networks 3a, 3b may be dispensed with, the differential comparison network being fed directly from the respective A.V.C. circuits. (Fig. 3 not shown). Fig. 4 shows in more detail, the arrangement of Fig. 1 adapted, for receiving telegraph signals from a transmitter T including a generator G which is keyed to give two carrier frequencies corresponding to marking and spacing signals. The diversity receivers Ra, Rb produce, after heterodyning, the two audio frequencies corresponding to the signals which are selected by band pass filters, Fa, Fb. The two signal channels comprise limiters 2a, 2b, discriminatordetectors 6a, 6b feeding a common combining network 7 and reproducer 8. The units 3a, 3b include amplifiers 12a, 12b and detectors 14a 14b each producing a smoothed output proportional to signal strength. The outputs are fed to the grids of tubes 16a, 16b of a differential comparison unit 4 to produce differential control voltages across cathode resistances 19a, 19b. These voltages are connected to the cathodes of valves 20a, 20b connected as shown to valves 22a, 22b arranged so that for equal signals in both channels valves 22a, 22b are biassed to cut off. If one'end of resistances 19a, 19b is positive relative to the other end, the valve 22a or 22b in the other channel conducts and shunts the output of the corresponding limiter 2a or 2b to disable the weaker channel. Specification 537,689 is referred to.
Patent GB-1046332-A (GB)
Title: Salts of the antibiotic lincomycin
IPC: C07H15/16
Filed: 1964-02-19
Abstract: The invention relates to a lincomycin N-alkysulphamate of formula <FORM:1046332/C2/1> wherein R1 is alkyl and R2 is hydrogen or alkyl, the alkyl groups containing 1 to 24 carbon atoms, e.g. lincomycin n-hexylsulphamate and lincomycin n-octadecylsulphamate.  The salts are obtained by reacting (a) lincomycin base with a mono- or di-alkylsulphamic acid in which the alkyl groups contain 1 to 24 carbon atoms or (b) an acid salt of lincomycin with an alkali metal salt of said mono- or di-alkylsulphamic acid.  The lincomycin N-alkylsulphmates are less bitter than lincomycin salts generally, are stable and have a delayed release property and are particularly suitable for oral administration, e.g. as a syrup, tablet or capsule.
Patent GB-275509-A (GB)
Title: Improved stencils
IPC: B05C17/06
Filed: 1927-03-15
Abstract: 275,509. Podger, H. E. W., and Jackes, W. E. Mrach 15, 1927. Stencils.-Each of the characters in a stencil plate 5 is formed by a series of holes 6, preferably circular, arranged in single line, the holes being of relatively large size and arranged in close proximity, and the diameter of each hole being preferably an aliquot part of the height of the character.
Patent GB-1455227-A (GB)
Title: Method of manufacturing memory matrices and a memory matrix manufactured thereby drive transmitting mechanisms
IPC: G11C5/04
Filed: 1975-02-21
Abstract: 1455227 Magnetic storage arrangements VYCHISLITEL TSENTR SIBIR OTDEL AKAD NAUK SSSR 21 Feb 1975 [22 Feb 1974] 7324/75 Heading H3B In a magnetic storage matrix in which each wire 2 of a set of co-ordinate drive wires is threaded as a helix through apertured ferrite cores 1 and is fastened under tension to terminals 6 on a frame 5, each wire 3 of the other set of co-ordinate drive wires is twisted or is formed into a helix or zig-zag configuration prior to core threading, these wires being then straightened before attachment in tension in a similar manner to the frame terminals. The matrix includes a common inhibitor sense winding 4.
Patent GB-804221-A (GB)
Title: Separating naphthalene from hydrocarbon oils by azeotropic distillation
Inventor: SPENCER DONALD
IPC: C07C7/06
Filed: 1954-03-12
Abstract: Naphthalene is separated from hydrocarbon oils by distilling the oil in the presence of an amino-hydroxy organic compound, such as monoethanolamine or 4-amino-2-butanol, which forms azeotropes of minimum boiling point with those components of the oil having boiling points close to that of naphthalene whereby the azeotropes distil over before the purified naphthalene.  A second azeotropic entrainer for the impurities, e.g. ethylene glycol, may be added to the distilland, so as to cause the amino-hydroxy compound to concentrate in the upper part of the distillation column thereby <FORM:0804221/III/1> obviating thermal decomposition of the aminocompound in the hotter lower sections.  Alternatively the distillation may be operated at a lowered base temperature by carrying it out in the presence of an excess of ethanolamine and by introducing an inert gas, such as nitrogen.  In an example, a coal tar fraction having a boiling range of 180-240 DEG  C. was washed with alkali and with acid to give a neutral oil containing 62 per cent of naphthalene. This oil was mixed with a third of its weight of monoethanolamine, and distilled through a packed column.  The first fraction of the distillate boiling between 160 DEG  and 168 DEG  C. contained about equal amounts of ethanolamine and nonaromatic hydrocarbons.  This distillate separated into two phases, the lower ethanolamine-rich phase containing 10 per cent of hydrocarbon oil, and the upper hydrocarbon-rich layer containing 3.5 per cent ethanolamine.  This first distillate was followed by a naphthalene fraction distilling at 218-220 DEG  C. and having a crystallizing-point of 75-76 DEG  C.  In the apparatus shown, crude naphthalene oil is first fractionated in column I and solvent naphtha passes overhead.  The topped crude is further fractionated in column II, from which crude methyl naphthalene is withdrawn as bottoms.  The impure naphthalene obtained at the overhead product from column II is submitted to azeotropic distillation with monoethanolamine in column III.  Purified naphthalene is withdrawn from the base of column III. The condensed distillate from this column is passed to decanter IV, where naphtha separates from ethanolamine.  The latter is returned to column III via line 8 or line 11.
Patent GB-889929-A (GB)
Title: Improvements in frequency compensated mass flowmeter
IPC: G01F1/80
Filed: 1960-03-02
Abstract: 889,929. Measuring electrically. GENERAL ELECTRIC CO. March 2, 1960 [March 4,1959], No. 7379/60. Class 40 (1). In a mass flowmeter system in which a fluid impeller accelerates the fluid to a uniform speed and the power supplied to the impeller or the power lost in decelerating the fluid after it has been accelerated, is measured as an indication of the mass rate of flow, the final indication is corrected in accordance with the deviation of the speed of the impeller from the speed at which the device was calibrated. As shown in Fig. 2 a mass flowmeter 1, e.g. of the type in which an impeller driven by synchronous motor 1<SP>1</SP> imparts an angular momentum to the fluid in the pipe which momentum is then recovered in deflecting a turbine rotor against a spring, positions the rotor 15 of transmitter selsyn 22 the stator coils of which are connected to the receiver selsyn 31. The output voltage of the rotor 35 of the receiver selsyn is added to the output voltage of frequency-responsive circuit 9 and applied via phase corrector 19 and amplifier 18 to motor 21 to position receiver selsyn rotor and potentiometer-wiper 30 for null input to amplifier 18. The voltage output of circuit 9 is dependent on the deviation from the nominal frequency of the supply voltage, and hence of the speed deviation of synchronous motor 1<SP>1</SP>, this voltage, added to the output of the selsyn link shifts the stable position of the receiver selsyn rotor and hence indicator 8 in such a direction as to correct the flowmeter reading for deviations in the impeller speed from that at which the flowmeter was calibrated. The amount of compensation required from circuit 9 varies with flow rate and therefore the potentiometer slider is coupled to the motor and indicator as shown. Phase correction circuit 19, consisting of ring demodulator 42 and ring modulator 41, removes quadrature components from the signal applied to transformer 36 while resistor 56 and condenser 57 form a phase-shift network to compensate for phase shift in amplifier 18.
Patent GB-454414-A (GB)
Title: Improvements in devices for moistening typewriter and like ribbons
IPC: B41J31/14
Filed: 1936-03-12
Abstract: 454,414. Ink - ribbon mechanism. VOORDE, E. VAN DE, 61, Fehrfeld, Bremen, Germany. March 12, 1936, No. 7485. [Class 100 (iv)] A device for moistening and renovating typewriter and like ribbons of the type in which the ribbon is guided round a roller which supplies the moisture comprises a hollow roller adapted to contain its own moistening liquid and mounted on a casing carried on an arm from which the roller projects in a downward direction, together with guides which press the ribbon against the roller. The casing a is preferably moulded from artificial resin or similar material in one piece with the arm a<1> and a boss d for a mounting screw e. The head f of the screw e engages under the typeguide g, and is prevented from rotating by a plate which engages a flat on the head. The clamping nut h may also be of artificial resin. The moistening roller comprises a perforated vessel k, mounted by means of ball-bearings x, y, n in the casing a. The bearing elements y are clamped between the casing a and a screw cover b, a spacing ring z being provided, and the elements x are clamped in position by rings w. The vessel k is covered by an absorptive bag p secured by a ring q, and contains an inset s which is covered by an absorptive bag r. A well u perforated at its base rests on the domed top of the inset s and may be charged with moistening fluid, for example turpentine, through a hole v. Integral guide fingers press the ribbon l against the vessel k.
Patent GB-1071259-A (GB)
Title: Alkenyl aromatic resin compositions
Inventor: JR CHARLES LEWIS STACEY
IPC: C08K5/00
Filed: 1965-02-22
Abstract: A light stabilized composition comprises an alkenyl aromatic resin (defined) and a minor proportion of a light stabilizing mixture consisting of a trizole, a benzophenone or a salicylate ultra-violet light absorber, a phenolic antioxidant and a trialkyl phosphite wherein the alkyl group contains from 4 to 18 carbon atoms.  The preferred light stabilizing mixture comprises 2(21 - hydroxy - 51 - methyl) benzotriazole 4,41-cyclohexylidene bis(2-cyclohexylphenol) and tridecylphosphite.  The alkenyl aromatic resin is defined as a homopolymer or copolymer of styrene, vinyl toluene, vinyl xylene, ethyl vinylbenzene, isopropyl styrene, p-tert-butylstyrene, chlorostyrene and dichlorostyrene.
Patent GB-897758-A (GB)
Title: Improvements in and relating to magnetic holders
IPC: B23Q3/154
Filed: 1960-03-03
Abstract: 897,758. Welding by fusion. MECHANIKA, NARODNI PODNIK. March 3, 1960 [June 2, 1959], No. 7625/60. Class 83 (4). [Also in Groups XIX, XX, XXIII and XXXV] Flat, cylindrical or profiled objects to be welded together are held in position by a magnetic work-holder 20 (see Group XXIII), one face of which is adapted to receive angular adaptors 26, 27 whereby the objects may be arranged at predetermined angles.
Patent GB-661580-A (GB)
Title: Improvements in or relating to power operated hand tools
IPC: B23Q11/08
Filed: 1949-03-21
Abstract: 661,580. Flow regulating devices. CONSOLIDATED PNEUMATIC TOOL CO. Ltd., and NOBLE, A. Feb. 10, 1950 [March 21, 1949] No. 7627/49. Class 135. A power operated hand tool such as a rock drill or a coal pick has a valve device for regulating the rate of flow of water to the end of the tool comprising a tapered plug 7 mounted in a casing 1 and having a number of intersecting transverse passages 8 of different cross-sectional area arranged in the plane of a supply passage 5 and a diametrically opposite passage leading to the tool head so that any one of the passages 8 may be brought into alignment with the passage 5. The plug has a multi-sided head 10 which co-operates with a similarly shaped recess 12 to locate the plug in its selected position. The head carries suitable indicating marks. The plug is held securely against its seat by a washer 14 and a nut 15 which must be slackened to allow the head 10 to be lifted from the recess 12 before the plug can be turned.
Patent GB-160081-A (GB)
Title: Apparatus for separating soluble from insoluble matter
IPC: C01G41/00
Filed: 1920-03-15
Abstract: 160,081. Blanch, J. C. March 15, 1920. Lixiviating.-An apparatus for treating solids with liquids comprises a tilting vat a with a steam inlet c, and a series of vats d with overflows e.
Patent GB-844044-A (GB)
Title: Brush holders for electrical machinery
IPC: H01R39/38
Filed: 1959-03-05
Abstract: 844,044. Brush holders for dynamo-electric machines. SCHUNK & EBE G.m.b.H. March 5, 1959 [Nov. 28, 1958], No. 7708/59. Class 35. Uniformity of pressure with minimal lateral thrust is obtained on a long brush 2, particularly a split brush as shown, by mounting the pressure arm 5 on a lever 4 whose fulcrum A is on a pivoted link 8 which abuts against a stop 11 at point B in the motion of the pressure arm to render the fulcrum A stationary at point B/C during the final movement of the arm. A resilient vibration damper 9 is situated between the arm 5 and lever 4.
Patent GB-1494023-A (GB)
Title: Sulphonated asymmetric 1:2 chromium complexes
IPC: C09B45/16
Filed: 1975-02-24
Abstract: 1494023 Sulphonated asymmetric 1:2 chromium complexed dyes SANDOZ Ltd 24 Feb 1975 [28 Feb 1974] 7710/75 Heading C4P A 1:2 chromium complexed azo dye has the formula in which R 1  signifies a hydrogen or halogen atom or a nitro group, R 2  signifies a hydrogen or halogen atom, a nitro or sulpho group, R 3  signifies a hydrogen or halogen atom, or a lower alkyl radical, R 4  signifies a hydrogen or halogen atom, a lower alkyl radical or a sulpho group, each of R 5 , R 6  and R 7 , independently, signifies a hydrogen or halogen atom or a lower alkyl radical, R signifies a hydrogen atom or a lower alkyl radical, and M signifies a cation, with the provisos (i) that the radicals R 1  and R 2  occupy the 4- and 6-positions, (ii) where R 4  signifies a sulpho group one of the radicals R 1  and R 2  signifies a halogen atom or a nitro group in the 4-position, and (iii) the compounds contain a single sulpho group which is in free acid or salt form. The dyes are used for dyeing or printing natural or synthetic polyamide, e.g. wool, nylon and silk, natural or regenerated cellulose, polyurethane and basic modified polyolefins. They are also useful for dyeing synthetic polyamides in the mass, and for dyeing leather and metals, especially anodized aluminium.
Patent GB-892643-A (GB)
Title: Improvements in or relating to storage bins
IPC: A47F5/00
Filed: 1958-05-06
Abstract: 892,643. Racks. GRIMSHAW, G. E. March 6, 1959 [Mar. 6, 1958], No. 7799/59. Divided out of 892,642. Class 52(3) [Also in Group XVII] In a honeycomb construction for a shelf, storage bin &c. longitudinally-extending strips 11 and transverse strips 12 have slots 16 . . . 19 cut in their longitudinal edges, the spacing of the slots in one edge differing from the spacing of slots in the other edge and the slots being staggered with respect to those of the other edge so that by turning one set of strips over the strips can be intermeshed in different ways to give different sizes of compartment. Flanges 15 are grooved to receive an information strip (not shown).
Patent GB-239790-A (GB)
Title: Improvements in or relating to protective spectacles
IPC: A61F9/02
Filed: 1925-03-23
Abstract: 239,790. Ratti, G. March 23, 1925. Goggles.-Goggles are fitted with interrupted rings for holding the lenses, the edges of the rings being provided with lugs engaged by pivoted locking members. The frame 1 adapted to carry the lens is formed by a rim shaped to assume the necessary double curvature having at its front edge a groove 4 to grip the lens. A leg 5 on one of the edges is provided with a locking member 6 for securing the pivoted lever 9 in position when turned over so' that a hole 11 in the lever 9 engages a pin 8 on the other edge of the rim. In a modification the lever 9 is riveted to the rim allowing a sufficient movement of the edges to release and replace a lens.
Patent GB-100736-A (GB)
IPC: H02G1/12
Filed: 1916-06-02
Abstract: 100,736. Wood, S. G. June 22, 1915, [Convention date]. Pliers and cutters.-Tools for stripping insulation from the ends of electric conductors are provided with means for clamping the conductor, means for cutting through the insulation, and means for effecting relative movement of the clamping and cutting means longitudinally of the wire to remove the severed insulation. In the form shown in Fig. 1, a pair of clamping-jaws 5 is pivoted to the upper ends of a pair of crossed levers 1 having handle parts 4, and below the jaws 5 are a pair of cutting-jaws 6 on crossed levers 7 connected by links 9 to the levers 1. After the conductor i has been inserted between the jaws 5. 6, the first part of the inward movement of the handles 4 causes the jaws 5 to clamp the conductor and the jaws 6 to sever the insulation. Further movement of the handles causes the jaws 5 to turn about their pivots against the action of springs 17 away from the jaws 6, and also causes the levers 7 to move longitudinally to strip off the severed insulation. Guides 12 for the levers 7 are formed on a plate 11 mounted on the pivot 2 of the levers 1. The levers 1 are opened by a spring 10. The cutters 6 are provided with notches to prevent severing of the core w. The jaws 5 may be grooved to receive the conductor i, and the gripping-surfaces may be serrated. The jaws 5 may also have interengaging teeth. In another form, the clamping-jaws may be integral with the upper ends of the levers 1. In another form, Fig. 7, the gripping and cutting jaws 5<11>, 6" are pivoted to the ends of the levers 1 and are normally drawn together by springs 24 to an extent limited by stops 25, 26.
Patent GB-116092-A (GB)
Title: Improvements in or relating to Collars for Personal Wear.
Inventor: HEUSEN JOHN MANNING VAN
IPC: A41B5/00
Filed: 1918-05-10
Abstract: 116,092. Heusen, J. M. van, (Assignee of Morgan, J. L.). May 22, 1917, [Convention date]. Fashioned fabrics, looms specially designed for. -Double collars of two-ply fabric are made by weaving, under the same tension, the outer and inner folds in such a way that the outer fold is longer than the inner one, whereby the collar takes a permanent curvilinear set when folded. The intermediate edge fold portion is weakened. The fabric for making the collars is woven by taking the warp and binder threads from rolls 1, over guide-rolls 2, through spacing-frames 3, around guide-rolls 4, through thread-supporting loops of the heald frame 6, and through a reed 7 carried by a beam 8. The complete fabric is carried over a skew guide-rod 10, and between tapered tension rolls 11, 12 to the take-up roll 13. The rolls 11, 12 produce the required uniform tension on the threads, whereby the greatest length of thread is on one edge, the length gradually diminishing towards the other edge. Fig. 5 shows a cross-section of the fabric, wherein the weft threads 17 of the two-ply fabric are connected by binder threads 21. The warp threads are shown at 18. Between the two layers is a layer of filling or gut threads 20, which, however, are omitted at the fold, so as to form the required weakened part. Fig. 8 shows another way of forming the weakened portion in a two-ply fabric, the gut threads 33 being omitted, and the upper and lower plys being combined into a single ply having double the number of warp and weft threads. The collar in both cases is afterwards stamped out of the cloth, bound, and finished in the usual way. Specifications 110.942, [Class 142 (iv), Woven fabrics &c.], and 116,090 are referred to.