baber/WOPTO huggingface dataset:
Patent GB-578367-A (GB)
Title: Improvements in or relating to the production of filaments, threads, fibres, bands, films and the like
IPC: D01F4/00
Filed: 1940-05-06
Abstract: Filaments, threads, fibres, bands, films, and the like are obtained by extruding a solution of a protein in an alkali into a coagulating bath and hardening the products by means of formaldehyde or other hardening agent capable of reacting with the amino groups of the protein, and also hardening the products by means of one or more formates of polyvalent metals in solution with or without one or more formates of univalent metals or other salts or organic compounds. Hardening may be effected in a single bath containing formaldehyde, sodium formate and aluminium triformate.  The polyvalent metal salt may be present as a complex salt.  If desired, a coagulating bath containing a formate may be used and the filaments or other products may be passed, without washing, from this bath to a hardening bath containing a polyvalent metal salt, the coagulating liquid adhering to the products being used as a constituent of the hardening bath.  A coagulating bath containing a salt of a polyvalent metal may be used and the unwashed products may be passed into a hardening bath containing a formate.  In forming the protein solutions some of the alkali is absorbed by or combines with the protein molecules and the amount of free alkali in the solution is reduced.  The amount of alkali used may be such that there is not more than 0.4 mols of free alkali per kg. of protein in the solution or it may be so small that there is no free alkali in the solution. Specification 577,526 is referred to.
Patent GB-144015-A (GB)
Title: Cycle & motor cycle lock and lamp bracket combined
IPC: B62H5/14
Filed: 1919-04-01
Abstract: 144,015. Bourne, F., and Bourne, W. April 1, 1919. Guarding against unauthorized use.-A box a containing a locking-bolt b is secured by means of a bracket e<2> to the spindle of the front or rear wheel of a cycle or motor-cycle. The bolt b is pushed outwards against a spring by means of a knob or handle d so as to engage between the spokes of the wheel and so lock the machine. It is held in the extended position by the engagement of the point of a spring-pressed cam c with a notch k. By means of an internally-tapped key engaging the screwed end of the cam spindle f, the cam can be rotated out of contact with the notch k, whereupon the bolt b shoots back into its retracted position and frees the wheels of the machine. A lamp bracket e<1> is combined with the lock.
Patent GB-887756-A (GB)
Title: Improvements relating to hydraulically operated reversing gearing
IPC: F16H3/60
Filed: 1960-03-08
Abstract: 887,756. Reversing gears. DAIMLERBENZ A.G. March 8, 1960 [March 11, 1959], No. 8170/60. Class 80 (2). An hydraulically -operated reversing gear for a marine vessel comprises an input planet carrier 28 carrying intermeshed planets 29, 30 which respectively mesh an output sun 34 and ring gear 31 which latter is held by a disc brake 19 for reverse, whilst for forward ratio the planets carrier 28 is clutched at 20 to an intermediate output shaft 35. The gear-wheel sizes are selected to provide a one-to-one ratio in both forward and reverse directions. The intermediate shaft 35 drives a final driven shaft 25 through a fixed reduction gear 23, 24. The brake 19 and clutch 20 are hydraulicallyoperated and the latter may be locked engaged by screws 47 accessible through an inspection cover 48 in the casing 13. An additional hydraulically operated brake 81 for holding the driven shaft 26 has a piston 82 which engages the housing of the clutch 20 which is fast with the intermediate shaft 35. The engine flywheel is connected to the planet carrier through resilient members 14. The gear-wheel 24 is connected to a flange 71 on the shaft 25 by splines 73 and bolts 72. Input and output pumps 52, 56 of an hydraulic unit (not shown) supply pressure-liquid for operating the clutches and brakes and supply liquid through ducts 58, 59; 60, 61, 62; and 66, 78, 74, 79, 80 for lubricating the gearing and bearings. The gear housing 13 is rotatable at 27 relative to the housing 10 so that the gear may be turned relative to the engine.
Patent GB-549465-A (GB)
Title: Improvements in carrier-signal receivers
IPC: H04B1/30
Filed: 1941-06-28
Abstract: 549,465. Valve circuits for wireless reception. HAZELTINE CORPORATION. June 28, 1941, No. 8171. Convention date, July 10, 1940. [Class 40 (v)] A receiver of the homodyne type comprises a main signal channel tuned to a desired carrier wave, an auxiliary channel in which the carrier alone is obtained and fed back into the main channel to provide a desired carrier having an amplitude in excess of neighbouring undesired carriers. In Fig. 1, a tuned input circuit 11, 12 feeds the main channel comprising a tunable R.F. amplifier 10, tunable coupling circuit 16, 17, broad band R.F. amplifier 15, detector 18 and output 19, 20, Part of the energy from circuit 11, 12 is applied to an auxiliary channel comprising an untuned broad-band R.F. amplifier 21 and limiter 34 of the kind described in Specification 552,499, the output of which is fed through a tuned link circuit 27, 28 back to the input circuit 11, 12. Limiter 34 brings the desired carrier and neighbouring carriers down to a common level so that after passing tuned circuit 27, 28 the desired carrier is predominant and thus when fed into the main channel produces a desired carrier of larger amplitude than the neighbouring carriers. In a modification, Fig. 3 (not shown), the link circuit is coupled with the' main channel after the first R.F. stage so as to reduce the possibility of oscillation. In a further modification, Fig. 4 (not shown), the output from .the limiter is amplified -and fed back into the detector stage of the main signal channel. A voltage is also fed to the detector to render it unresponsive to carrier signals of amplitude less than the reinforced desired carrier.
Patent GB-1294725-A (GB)
Title: Polymerization of diolefins
IPC: C08F36/04
Filed: 1970-02-20
Abstract: 1294725 Polymerizing conjugated diolefins GOODYEAR TIRE & RUBBER CO 20 Feb 1970 [27 March 1969] 8201/70 Heading C3P Conjugated diolefins are polymerized by a process comprising contacting the monomer(s) with a catalyst comprising:- (1) an organoaluminium compound, (2) a metallic co-ordination compound of a Group IIIb metal having atomic number 21, 39, 57-71 (i.e. scandium, yttrium or the lanthanides; and (3) a compound containing at least one halide ion; the catalyst being preformed and aged with at least one conjugated diolefin in an amount which gives a molar ratio of diolefin to component (2) of 0À2/1 to 3000/1. In the examples catalysts prepared by reaction of diisobutylaluminium hydride, cerium octanoate and ethylaluminium dichloride in benzene and aged with butadiene or isoprene are used to polymerize butadiene.
Patent GB-825851-A (GB)
Title: Improvements in or relating to electric dry shavers
IPC: B26B19/28
Filed: 1956-03-15
Abstract: 825.851. Dry shavers. SIEMENSSCHUCKERTWERKE A.G. March 15, 1956 [April 20, 1955], No. 8216/56. Class 131 A dry shaver comprises inner cutters 1, 2 reciprocated beneath a foil screen and a comb type cutting plate, respectively, to provide a close shaver and a long hair cutter disposed for simultaneous application to the skin, the cutters being coupled to a common drive 3 by means having different transmission ratios and the close shaver cutter 1 having the higher speed. The cutters are reciprocated by gear wheels 41A, 42A, 41B, 42B and cranks 51, 52 engaging in shank slots 61, 62. In modifications lever arms of different lengths or cams of different throw provide the power transmission means.
Patent GB-1009591-A (GB)
Title: Improvements in or relating to magnetic heads
IPC: G11B5/48
Filed: 1964-02-27
Abstract: 1,009,591. Magnetic tape recording &c. heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 27, 1964 [March 1, 1963], No. 8219/64. Heading G5R. Reduced wear and friction between heads and video-frequency tapes is achieved by making the running surface of the head 5 doublycurved away from the tape tangent plane. The radii R, R 1 , Figs. 1, 2 may be the same and share a common centre, whereupon the surface is ground spherical in a fixture (not detailed). Alternatively, the transverse radius R3, Fig. 6, may be smaller than R. To reduce the tape-contacting width, and hence reducing adjacent-track cross-talk, the head may be bevelled, flat as at 12, Fig. 5, or cylindrically or spherically, the bevel curvature also being convex.
Patent GB-542524-A (GB)
Title: Improvements in or relating to socketed screws
IPC: F16B23/00
Filed: 1940-05-09
Abstract: 542,524. Wood &c. screws. HOLO-KROME SCREW CORPORATION. May 9, 1940, No. 8393. Convention date, May 26, 1939. [Class 89 (ii)] [Also in Group XXIII] Screws with sockets for receiving a driver have surfaces adjacent the bottom of the socket for engaging the driver with a wedging action. The sockets have a number of radial flutes 3, Fig. 1, the bottoms 9 and intersections 11 of which are convex. The driver, Fig. 9, is of a form corresponding to that of the socket but does not button therein so that axial pressure causes a wedging action.
Patent GB-1029912-A (GB)
Title: Granular pesticidal compositions and methods of preparation
IPC: A01N25/08
Filed: 1963-03-04
Abstract: A granular, non-powdery pesticidal composition is prepared by mixing relatively hard, inert, non-porous, non-absorbant carrier particles e.g. nut shell, fruit pit, corncob, marble, pyrophyllite or talc particles with a finely divided, highly absorbent, water-insoluble, non adhesive powder e.g. silica, calcium silicate or magnesium silicate and a pesticidal compound in liquid form and subjecting the bland to intense agitation in a blender until the powder absorbs the liquid and becomes bonded to the carrier particles.  Numerous specific pesticides are mentioned including 0, 0-dialkyl-0-pyrimidyl phosphoric acid esters; 0, 0-dialkyl-0-aryl phosphoric acid esters and 0, 0-dialkyl-S-arylmercaptomethyl dithiophosphoric acid esters such as those known as "Diazinon", "Chlorthion" and "Methyl Phencaptone".
Patent GB-609626-A (GB)
Title: Improvements in or relating to the extrusion of metal or alloy ingots
IPC: B21C23/03
Filed: 1946-03-19
Abstract: 609,626. Extrudings. ALUMINIUM CO. OF AMERICA. March 19, 1946, No. 8478. Convention date, March 31, 1945. [Class 83 (iv)] A method of extruding metals and alloys, which comprises first extruding a portion of the ingot metal by the indirect process and then extruding the balance of the ingot metal by the direct process. An ingot 25 is acted upon by a ram 12 and dummy block 13 moving in a cylinder 10 and a liner 11. The ingot 25 is compressed between the dummy block 13 and a stationary die 15 fixed in a die holder 17. The ingot 25 first swells to fill the liner 11 and the frictional forces between the ingot 25 and liner 11 constrain the ram 12, dummy block 13, liner 11, cylinder 10, and'ingot 25 to move as one unit, forcing the ingot to extrude from the orifice of the die 15. This movement is continued until the cylinder 10 and liner 11 are halted by liner 11 abutting on the shoulder of the die holder 17. Movement of the ram 12 is continued and the ingot is further extruded by the direct process, liner 11, cylinder 10, die holder 17 and die 15 remaining stationary. The method is intended to avoid friction losses between the ingot and the cylinder at the beginning of the extrusion process, thereby speeding up the process and. permitting lower ram pressures and lower temperatures to be employed.
Patent GB-796801-A (GB)
Title: Improvements relating to weldable stressing or anchoring members
IPC: E04C5/08
Filed: 1956-03-19
Abstract: 796,801. Prestressed reinforced concrete. EVG. ENTWICKLUNGS-UND VERWERTUNGSGES. March 19, 1956 [March 21, 1955], No. 8523/56. Class 20(4) Reinforcements c, Fig. 2, for prestressed reinforced concrete, are welded to a stressing or anchoring head a, either reinforcement c or head a being formed with projections which lie one behind the other in the longitudinal direction of the reinforcement, the members being welded together at the tops of the projections. As shown, the head a is in the form of a prism, provided at two opposite sides with a series of ribs 1, extending transversely to the length of the head a, and reinforcing steel members c are welded at 2 to the rounded apices of the ribs 1. There may be one or more reinforcements c on each side of the head a. A slot 3, in head a may be engaged by a stressing device. In a modification the reinforcements c are connected intermediate their ends by a series of cross bars welded thereto at intervals. The ribs or projections may be of square, rectangular, trapezoidal, triangular, or wave-shaped cross section. In a further form, Figs. 10 and 11, the head a is in the form of a regular six sided prism. Six reinforcing steel members c are welded at 2 to the longitudinal sides provided with a system of ribs 1. A threaded bore 10 allows the head a to be connected to a stressing device. In another form the head a is of cylindrical shape, its surface being formed with annular ribs 1, to which the reinforcing members c are welded, and provided with a threaded bolt for engagement by a stressing device. In another embodiment Fig. 14, one or more members c, are welded to a head which is in two parts 14. 15. In another form a two-part head consists of two hollow cylinder halves. As shown in Fig. 19 the welding projections are formed as upset portions of the reinforcing steel member c. In another form the member c has a waveshaped end the wave peaks being welded to a smooth surfaced head a. Several heads may be connected to a reinforcement along its length, and after the reinforcement has been stressed and the concrete hardened, the stressing heads at each end may be cut off.
Patent GB-222407-A (GB)
Title: Improvements in film-packs for photographic films
IPC: G03B17/34
Filed: 1924-04-05
Abstract: 222,407. Boogaardt, H. J. J. van den. April 5, 1924. Change-boxes, self-contained.-A film pack has a partition 3 between t'he unexposed and exposed films and a second partition 4 parallel to the first between the exposed films and an exit slot 10 through which the tabs pass. The slot may be sufficiently wide to allow the films to be extracted. The double - bent side edges of the partition 4 constitute supports 8 for springs 7 fixed to the front partition 3. The films are bent over the front partition whilst being changed and over the rear partition 4 whilst being drawn out. Or a plate 9, partially closing a groove formed by the side edges of the partition 4, may form a stop for the exposed films. In a modification, springs are connected to the rear partition and the tab exit is provided at the lower side of the case between the rear partition and the wall.
Patent GB-1503936-A (GB)
Title: Synchronised clock
IPC: G04G7/00
Filed: 1975-03-03
Abstract: 1503936 Frequency division COMPTEURS SCHLUMBERGER 3 March 1975 [1 March 1974] 8701/75 Heading G4D [Also in Division G3] The running rate of an electronic clock is regulated with respect to an external synchronizing signal, e.g. from a master clock, by periodic adjustment of the division ratio of its frequency divider. The clock, Fig. 1, comprises a quartz crystal or tuning fork controlled oscillator 1 followed by a frequency divider 2 having sections 3, 4. The clock timing signal H (e.g. at 1 Hz) from the divider is compared in a phase comparator 5 (e.g. a flip-flop), during regular correction intervals fixed by a time constant circuit 8 (e.g. intervals of <SP>1</SP>/ 1000 th of each period of signal H), with the external synch, signal Sy. Outside the correction intervals, signals N from the divider section 3 are normally passed to section 4 via a switch 81 controlled by the time constant circuit 8. During the correction interval, the switch 81 is changed over by circuit 8. A circuit 9, e.g. a peak detector or a monostable circuit responds to the presence of the synch, signal Sy and controls switches 91, 92; the output of phase comparator 5 controls a switch 51. If the clock is running "slow" the switch 51 is closed and signals D from an earlier stage in divider section 3 are sent to the divider section 4 via the switches 91 and 81. If the clock is fast the switch 51 is opened by comparator 5 and the signals D cannot reach divider 4. If the synch. signals fail, circuit 9 closes switch 92 and signals N pass to the divider 4 whatever the position of switch 81. The advance and retard actions effectively modulate the period of the clock signals H. In practice, the switching circuit 10 is constituted by MOS logic gates, for instance NAND gates in Fig. 2 (not shown) or AND and OR gates in Fig. 3 (not shown).
Patent GB-1198975-A (GB)
Title: Current Measuring Circuits for X-Ray Tubes
IPC: H05G1/26
Filed: 1969-02-18
Abstract: 1,198,975. Supply systems for X-ray apparatus. PICKER CORP. 18 Feb., 1969 [28 Feb., 1968], No. 8731/69. Heading H2H. [Also in Division G1] To measure the current through a heated filament type X-ray tube 10, the current being supplied from a source 20 via two secondary windings 18A, 18B of a transformer 18 and fullwave rectifier 16, a compensating circuit including a further transformer winding 18C is provided connected with a capacitor 24 and with the other secondaries on the transformer, in such a way as to oppose and neutralize unwanted capacitance current in the windings. The voltage across the compensating circuit is applied via the capacitor 24 to the full-wave rectifier 30, whose output is applied to control current flow through a transistor 32. The current through this is indicated by meter 36 to provide a measure of the current supplied to the X-ray tube. The capacitor 40 smooths and integrates the current through the meter. The potentiometer 22 enables the compensating circuit to be adjusted to properly balance out the capacitive currents induced across the transformer 18. In a more elaborate circuit (Fig. 2, not shown) a Darlington pair is used in place of the transistor 32, and a further transistor may be switched in shunt across the meter to provide two alternative measuring ranges.
Patent GB-871054-A (GB)
Title: Improvements in or relating to mine arches
IPC: E21D11/24
Filed: 1959-03-16
Abstract: 871,054. Mine-roof supports. PAURAT, F. W. March 16, 1959 [March 14, 1958; Dec. 5, 1958], No. 8919/59. Class 20(2) A hinged arch frame for supporting a mine-roof has a dismantling assembly 4, hinged at 2A, 2B between two adjacent beams 1A, 1B; an assembly 3, attached to the beam 1A, includes a member 3.1 containing an aperture 3.4, through which a locking bolt 4.5, pivoted to the frame 4 at 4.7 can be entered and retained by the catches 4.6 acting against the right-hand face of the member 3.1. A key 5, inserted above the bolt 4.5 in the aperture 3.4 holds the assembly against accidental release. To release the assembly, the key is removed and the bolt raised. According to the frictional forces acting, the beam 1A will proceed towards the position shown dotted in Fig. 1, or in another arrangement, a hydraulic ram lifts the bolt and forces it out against greater frictional forces. A further arrangement (Figs. 6, 7, not shown) divides a beam, near one end along a plane normal to the plane of the arch and inclined to the general direction of the beam at that point. Release of wedges, &c. allows relative sliding of the beam segments in the plane of division.
Patent GB-798808-A (GB)
Title: Improvements in the manufacture of compact bodies compounded from glass fibres and synthetic materials
Filed: 1956-03-22
Abstract: 798,808. Agglutinated fibrous materials; waterproofing. SOC. ANON. DES MANUFACTURES DE GLACES ET PRODUITS CHIMIQUE DE ST. GOBAIN, CHAUNY & CIREY. March 22, 1956 [March 22, 1955], No. 8939/56. Class 140. In a process for the manufacture of compact bodies formed from synthetic resin reinforced with glass fibres, the bodies, after shaping and hardening, are subjected to impregnation by liquid waterproofing agents which have a marked wetting action on the materials to be impregnated and penetrate into all the pores and cavities of the synthetic resin. Specified resins are mixtures of non-saturated polyesters and styrene, artificial resins of the ethoxyl group, fusible phenolic resins and triallyl cyanurate. Specified waterproofing agents are polyvinyltrichlorsilane, chlorallyloxyvinyl - dichlorsilane-alone or in a mixture with polyesters or epoxy resins-ethoxyline resins, especially reaction products of diphenols with epichlorhydrin and silicone oils. The impregnation may be carried out by vacuum and pressure means.
Patent GB-644791-A (GB)
Title: A process for removing coating compositions from substrata coated therewith, and the manufacture of preparations therefor
IPC: C09D9/00
Filed: 1947-04-03
Abstract: Pastes are prepared by treating finely ground wood-hydrolysis lignin or a finely ground natural product containing, in addition to lignin, cellulose or a conversion product thereof which is insoluble in alkalis, but capable of swelling therein, with an aqueous solution of an alkali hydroxide, the finely ground lignin or natural product having a particle size such that the greater part of the particles is smaller than 0.05 mm.  The paste may also contain an organic solvent while the natural product may be brown coal or peat.  A dry mixture of the lignin or natural product and an alkali hydroxide, and, if desired, a wetting agent, e.g. sodium di-isobutylnaphthalene sulphonate may be formed into a paste with water.  Specified organic solvents are methanol, ethyl alcohol, acetone, diacetone alcohol, mesityl oxide, isophorone, dioxane, chlorinated aromatic hydrocarbons, and also solutions of paraffin wax in hydrocarbons such as benzene.  Specified alkali hydroxide treating mucous are sodium or potassium hydroxide, aqueous ammonia, a mixture of calcium hydroxide and either sodium carbonate or sodium sulphate.ALSO:A process for removing coating compositions comprises treating the material to be cleansed with a paste prepared by treating finely ground wood-hydrolysis lignin or a finely ground natural product containing, in addition to lignin, cellulose or a conversion product thereof which is insoluble in alkalis but capable of swelling therein with an aqueous solution of an alkali hydroxide, the finely ground lignin or natural product having a particle size such that the greater part of the particles is smaller than 0.05 mm.  The paste may also contain an organic solvent while the natural product may be brown coal or peat. A dry mixture of the lignin or natural product and an alkali hydroxide and, if desired, a wetting agent, e.g. sodium di-isobutyl-naphthelene sulphonate may be formed into a paste with water.  Specified organic solvents are methanol, ethyl alcohol, acetone, diacetone alcohol, mesityl oxide, isophorone, dioxane, chlorinated aromatic hydrocarbons, and also solutions of paraffin wax in hydrocarbons such as benzene.  Specified alkali hydroxide treating mixes are sodium or potassium hydroxide, aqueous ammonia, and a mixture of calcium hydroxide and ether sodium carbonate or sulphate.
Patent GB-275895-A (GB)
Title: Improvements relating to mechanical driving belts
IPC: F16G5/18
Filed: 1927-04-02
Abstract: 275,895. Breeden, C. L. April 2, 1927. Belts.-In V or flat belts of the type in which leather, rubber, &c. friction members are secured upon alternate members of a metal chain, the friction members e, f are secured to the inner faces only, or, as shown, to both faces of the brass, steel, &c. links a by bolts or screws, the links having hook ends to engage hardened steel pivot pins d secured transversely in the connecting-links c, of which the ends enter slots b in the ends of the links a.