baber/WOPTO huggingface dataset:
Patent GB-253617-A (GB)
Title: Improvements in or relating to the operating gear of electric switches
IPC: H01H3/40
Filed: 1925-03-20
Abstract: 253,617. Reyrolle & Co., Ltd., A., Allan, A., and Clothier, H. W. March 20, 1925.. Oil switches, actuating. - In electric switch gear of the kind in which the main switch is removable from the rest of the gear, there are provided a pinion mounted on a rotatable spindle and operatively connected to the plunger-rod or like member of the main switch, and a second or driving pinion meshing with the first and mounted on a shaft carried in bearings in a fixed frame, the bearings being adjustable to secure proper engagement between the two pinions. The invention is shown applied to a three-phase oil-immersed switch gear having a main switch A for each phase contained in a tank B both of which can be removed by lowering by means of gear C and ropes and pulleys C<1>, C<2>, as described in Specification 238,952. The plunger-rod D is attached to a tube D<1> sliding in a tube E which is attached to the top plate B<1> of the tank by a housing E<1> and has a cap E<2> against which and the plunger-rod bears a spring F tending to force the latter down and open the switch. One side of the tube D<1> has a rack D<2> engaged by a pinion G mounted on a spindle G<1> in bearings H in the housing E<1>. The spindle G' carries a second pinion J meshing with a pinion K on a shaft K<1> eccentrically mounted in discs K<2> which can be turned in their housings K<3> to secure proper engagement between pinions J, K. The housings K<3> are on the walls of a chamber L between two oil-chambers which may contain intermediate connections or switches. The shafts K<1> are connected by flexible couplings M with one another and with the main operating shaft N, the couplings allowing for slight differences in alignment. When any oil switch is lowered the pinion J leaves the pinion K and a convenient interlocking arrangement for ensuring that the switch is open before removal and replacement is provided. The main shaft carries a toothed disc N<1> engaged when the switches are closed by a pivoted detent 0 which is connected by a rod 0<1> with a trip lever O<2>. The handle C<4> of the gear C is arranged to move the lever O<2> and detent O before engaging with its spindle C<3>, thus freeing the shaft N and ensuring that the switches are opened by the spring F before the lowering gear is operated.
Patent GB-307513-A (GB)
Title: Improvements in or relating to calculating devices
IPC: G06G3/08
Filed: 1929-03-09
Abstract: 307,513. Askania-Werke Akt.-Ges. vorm. Centralwerkstatt Dessau und C. Bamberg-Friedenau. March 10, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Integration.-Relates to means for calculating the integrals #sin 2A(1/cos E + ¢ cos E) d E and # cos 2 A (1/cos E + ¢ cos E) d E for evaluating the curvature of the equipotential surface of gravity in investigations on the E÷tv÷s principle employing torsion balances. The apparatus consists of a bar J, J passing through and pivoting round the origin O on a chart on which contour lines h<1>, h<2> are shown and carrying on a slide P<1> a graduated bar K at. right angles to J, J, a tracer point P<2> being fitted to the slide. A slide P on the bar K can be fixed at a distance from the slide P<1> equal to the height, say z, the mean of the two contour lines h', h<2>, and slides on a bar H pivoting at O and passing through a double slide D, through the second passage in which works a bar V sliding on and at right angles to the bar J, J and carrying a slide U1 attached to a rod working parallel to the rod J, J and carrying a parallel rack U gearing with a pinion T. The pinion T is adjustably mounted at any desired point on the. bar O, P its centre being guided by a rod W<2> at right angles to the bar J,J. At a quarterradius distance from the centre on a radius at right angles to O, P a point M engages a rod W sliding at right angles to the bar J, J.. A cord secured to the slide D passes through the centre of the pinion T, at right angles to the bar J, J to a pulley L<1>, Fig. 2, over a pulley L adjustably mounted on the bar J, J thence to the centre S of a pinion R centred on the bar J, J and gearing with a pinion F of twice its radius fixed to the chart concentric with its origin. The cord passes round the centre of the pinion R to a slide Q on a bar N pivoted at the centre of the pinion R and is kept tensioned by a spring. The slide Q also guides a graduated bar B sliding at right angles to the bar J, J. For any setting of the distance P, P<1> the tracer P<2> is carried round the figure causing the angle E between the bars O. P and J, J to vary and the slide D to move by the amount sDE/cos E where s is the radius of the pinion T, and the roller L to move by the amount s/4 cos E d E. The movement of the sliding bar B along the rod J, J will give the value s cos 2 A (1/cos E + ¢ cos E) d E and the change of the distance from Q to the bar J, J 1 will give s sin 2 A ( cos E + ¢ cos E) d E, the rod J, J making the angle A with the x axis, that shown vertical in the Figure, and the bar N therefore making the angle 2 A with the rod J, J.
Patent GB-1068721-A (GB)
Title: Header and sealing ring for packing assembly
Inventor: LINWOOD DEREK ARTHUR
IPC: F16J15/20
Filed: 1965-02-23
Abstract: 1,068,721. Piston and stuffing-box packing. HALL & HALL Ltd. Jan. 6, 1966 [Feb. 23, 1965], No. 7774/65. Headings F2B and F2T. A header and packing ring comprises an annular body member 1 and a filling member 2 formed integral with each other or bonded together throughout their contacting surfaces, the body member being of less readily deformable material than that of the filling member and having exterior side walls 3 and a convex base which extends from and between the walls and includes two frusto-conical annular surfaces 6 at an angle to the walls. The surface of the member 1 in contact with the member 2 is formed by two frusto-conical surfaces 3 parallel with the surfaces 6 and joined by a channel 5. The filling member and body member may be of rubber and reinforced rubber, respectively. The filling member may have a planar surface 10, Fig. 7, remote from the body member. In use, the ring may be directly supported on a rigid gland ring 11, Fig. 7, having concave frustoconical surfaces 12 or, as shown, chevron packing-rings 13 and 14 may be interposed between it and the gland ring.
Patent GB-609534-A (GB)
Title: Improvements in and relating to electrical height gauges
IPC: G01B7/02
Filed: 1946-03-13
Abstract: 609,534. Linear-dimension gauges. JACK & HEINTZ, Inc. March 13, 1946, No. 7797. Convention date, Aug. 6, 1945. [Class 106 (ii)] An electrical height gauge has a base 2 on which the article 1 to be measured is positioned by a screw bolt 4 extending through a fixed member 6. An electrical displacement unit similar to that described in Specification 601,053 has a primary coil 8 and two pick-up coils 9, 10, one on either side of the primary coil with an armature 11 operating therein to which is attached an arm 26 of the pivoted stylus 12 which rests on top of the article to be measured. When the stylus 12 is displaced against the action of an adjustable tension spring 30, the electrical circuits become unbalanced and a reading is obtained on a valve voltmeter 13 as described in Specification 588,047.
Patent GB-421533-A (GB)
Title: Improvements in or relating to the vulcanization of rubber
IPC: C08K5/00
Filed: 1933-03-15
Abstract: Vulcanization accelerators are prepared by reacting a metallic derivative of 2-mercaptobenzthiazole with one of the following quaternary ammonium halides:--an alkyl-, hydroxyalkyl-, or aralkyl-pyridinium halide, an aralkyltrialkylammonium halide, or a tetraalkylammonium halide in which one or more of the alkyl groups contains at least eight carbon atoms.  According to the Provisional Specification, however, the said alkyl groups contain more than one carbon atom.  The reaction is effected in a medium in which at least one of the reactants is soluble and at least one of the reaction products is insoluble.  Examples are given of the interaction of the sodium salt of 2-mercaptobenzthiazole with hexadecylpyridinium bromide, hexadecyltrimethylammonium bromide, benzyltrimethylammonium chloride, 2 : 3-dihydroxypropylpyridinium chloride, benzylpyridinium chloride and b -hydroxyethylpyridinium chloride.  Vulcanization tests of some of these materials are tabulated.  Quaternary ammonium halides.--Hexadecylpyridinium bromide is obtained by reacting pyridine and hexadecyl bromide, hexadecyltrimethylammonium bromide from trimethylamine and hexadecyl bromide, benzyltrimethylammonium chloride from trimethylamine and benzyl chloride, 2 : 3-dihydroxypropylpyridinium chloride from pyridine and glycerol chlorhydrin, and b -hydroxyethylpyridinium chloride from pyridine and ethylene chlorhydrin.ALSO:Accelerators for the vulcanization of rubber comprise the reaction products of a metallic derivative of 2-mercaptobenzthiazole with one of the following quaternary ammonium halides: an alkyl-, hydroxyalkyl- or aralkyl-pyridinium halide, an aralkyltrialkylammonium halide, or a tetraalkylammonium halide in which one or more of the alkyl groups contains at least eight carbon atoms.  Accoring to the Provisional Specification, however, the said alkyl groups contain more than one carbon atom. The reactants combine with elimination of the metal halide; thus, sodium 2-mercaptobenzthiazole unites with hexadecylpyridinium bromide to give hexadecylpyridinium - 2 - benzthiazyl sulphide. Similar products are obtained using hexadecyltrimethylammonium bromide, benzyltrimethylammonium chloride, 2 : 3 - dihydroxypropylpyridinium chloride, benzylpyridinium chloride and b -hydroxyethylpyridinium chloride as the quaternary ammonium halide.  Vulcanization tests of some of these products are tabulated.
Patent GB-126776-A (GB)
Title: Improvements in or relating to Reinforced Concrete Structures.
Inventor: JAQUES ERNEST WILFRED
IPC: E04C5/06
Filed: 1918-05-10
Abstract: 126,776. Jaques, E. W. May 10, 1918. Reinforced concrete.-The reinforcing members are provided with tongues b stamped out of the material otherwise than at the edges and bent on a line at right-angles to the length of the member so as to project on both sides. The tongues may have the various shapes shown and may project in opposite directions
Patent GB-1383908-A (GB)
Title: Oligomerisation process
IPC: B01J31/26
Filed: 1971-03-26
Abstract: 1383908 Olefin oligomerisation catalysts BRITISH PETROLEUM CO Ltd 24 March 1972 [26 March 1971] 7901/72 Heading B1E [Also in Division C5] Catalysts for use in the oligomerisation of conjugated di-olefins comprises (a) phosphorus-containing polymer having metal selected from cobalt, nickel and palladium bonded to the phosphorus atoms thereof and (b) an aluminium compound having the formula AlX 3  wherein each X, which may be the same or different, is a halogen atom or an alkyl, aryl, alkoxy or aryloxy group. The phosphoruscontaining polymer, which may have been prepared by a method disclosed in Specification No. 1277736, 1287566, 1291237, 1295673 or 1312611, may be (i) a phosphorus-containing polystyrene or polyvinyl chloride or (ii) a polymer prepared from an unsaturated phosphoruscontaining polymer or (iii) a polymer prepared from a polymeric alcohol and a trivalent phosphorus compound or (iv) a polymer prepared from a polymer containing double bonds and a compound containing a P-H bond; the metal may have been bonded to the polymer by a method disclosed in Specification 1277737 or 1295673, for example by reacting a phosphorus-containing polystyrene with (i) nickel acetylacetonate in the presence of diethylaluminium ethoxide and butadiene or (ii) nickel bis (cyclo-octadiene) in the presence of butadiene or (iii) 1, 5, 9-cyclododecatriene nickel (0). A nickel-containing polymer may have a diene ligand, for example a cyclo-octadiene ligand, bonded to the nickel. The aluminium compound preferably has the formula R n Al(OR) 3-n  wherein n is 1, 2 or 3 and each R is an alkyl group containing from 1 to 6 carbon atoms. Exemplified catalysts comprise (a) nickel-containing polymer prepared from phosphorus-containing cross-linked polystyrene and either nickel acetylacetone in the presence of diethylaluminium ethoxide and butadiene (Examples 2 and 3) or bis (1, 5-cyclo-octadiene) nickel (0) in the presence of butadiene (Examples 5 to 11 and 13) and (b) diethylaluminium ethoxide.
Patent GB-954841-A (GB)
Title: A method for the preparation of a stable crystalline form of 1-(5-nitrofurfurylideneamino)-hydantoin
IPC: C07D413/12
Filed: 1961-03-06
Abstract: The invention comprises 1-(51-nitrofurfurylideneamino)-hydantoin monohydrate in the form of stable prismatic crystals, and its preparation by drying 1-(51-nitrofurfurylideneamino)-hydantoin obtained from the aqueous reaction mixture in which it is formed (e.g. by reaction of 1-aminohydantoin and 5-nitrofurfuraldehyde in an aqueous mixture of acetic acid, sulphuric acid and ethanol) at a temperature not exceeding 80 DEG C.
Patent GB-679343-A (GB)
Title: Circuit for receivers for both am and fm-vhf broadcasts
IPC: H04B1/26
Filed: 1951-04-06
Abstract: 679,343. Multiplex radio signalling superheterodyne circuits; frequency modulation. STANDARD TELEPHONES & CABLES, Ltd. (Lorenz Akt.-Ges., C.). April 6, 1951, No. 8036/51. Drawings to Specification. Class 40 (v). In a common input circuit for combined AM and FM-VHF receivers the multi-grid section of a triode-hexode (or pentagrid) valve serves as a mixer for A.M. waves and as an I.F. amplifier for F.M.-V.H.F. waves, of which the triode section is the mixer. Different aerials for A.M. and F.M. reception are connected through tuned circuits to the multi-grid and triode sections, respectively, and separate local oscillators feed another grid of the multi-grid section and the triode grid respectively. The I.F. output of the triode is connected to a tuned circuit in series with the A.M. input to the multi-grid section, and I.F. tuned circuits for the A.M. and F.M. waves are arranged in series with the anode of the multi-grid section. No. band-switching therefore in the V.H.F. input circuit is necessary.
Patent GB-1008678-A (GB)
Title: Improvements in or relating to refractory bricks
Inventor: WOODHOUSE DENNIS
IPC: C04B35/44
Filed: 1961-03-06
Abstract: A process for making a refractory brick comprises mixing a chrome-bearing ore and a material containing or consisting of magnesia-alumina spinel, and pressing the mixture with a binder to form a brick which on heating to 1600 DEG  C. to 1800 DEG  C. until it is substantially homogeneous undergoes a volume change of not more than 5%.  The mixture preferably contains 15 to 35% by weight of the chrome-bearing ore the particles of which are all coarser than 72 B.S.S. mesh and all finer than 5 B.S.S. mesh.  The chrome-bearing ore preferably contains 25-50% chromic oxide, 8-30% ferric oxide, 10-40% alumina, 5-35% magnesia and 0.5-6% silica.  The magnesia-alumina spinel material is preferably that described in Specification 762,975.
Patent GB-817946-A (GB)
Title: Improvements in or relating to needles for intravenous injections
Inventor: MITCHELL JAMES VINCENT
IPC: A61M25/01
Filed: 1957-03-12
Abstract: 817,946. Hypodermic syringes. VANN BROS. Ltd. Jan. 31, 1958 [March 12, 1957], No. 8155/57. Class 81 (2). A needle assembly for intra-venous injections comprises a needle 1 into which, after insertion, there is fitted a blunt, closed-end cannula 2 with a lateral outlet 8, of such length that the outlet clears the end of the needle. The base 7 of the cannula carries a spring blade 9, so placed that when it is swung round above the needle, a pad 11 presses the wall of the vein down against the outlet 8 and closes it, so serving as a non-return valve. The outer end of the cannula communicates with a tube 13 having a syringe adapter at its outer end.
Patent GB-549315-A (GB)
Title: Improvements in or relating to sound recording film cameras
IPC: G03B31/02
Filed: 1941-06-30
Abstract: 549,315. Feeding sound films. VIKING FILMS, Ltd., and HUMPHRISS, E. A. June 30, 1941, No. 8201. [Class 97 (i)] A film passing, in a sound recording camera, between a toothed sprocket and a recording drum, is led over one or more guides or pulleys so as to change its direction, and the curvature of the guides &c. and the tension of the film are such that the natural resilience of the film causes it to assume a curved path in the spaces between the guides &c. As shown, the film is fed by a sprocket 3 and passes round pulleys 4, 5, 6, 7 to a recording drum 8 ; thence it passes to a sprocket 11 and over a roller 12 to the sprocket 3. The pulley 7 is carried on an arm 10 that may be weighted and adjustable to determine the film tension. The' shaft of the sprocket 11 may be motor driven', through a resilient coupling, and the sprocket 3 may be driven tnerefrom through gears 15, 16, 17.
Patent GB-177521-A (GB)
Title: Improvements in automatic coupling devices for railway vehicles
IPC: B61G5/08
Filed: 1922-03-21
Abstract: 177,521. Usines E. Henricot. March 24, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Couplings, disconnectible.-A coupling for a railway vehicle of the kind which is convertible from non-automatic to automatic has the automatic coupling-head, which is turnable in a vertical plane, combined with a second head for automatically connecting the steam or like conduits, the second head being flexibly mounted in an extension of the automatic coupling-head and capable of being turned into an out-of-the-way position with the automatic coupling-head when the non-automatic coupling is to be used. The automatic coupling-head 1 pivots about the pin 15 and is supported in the coupling position by a removable pin resting in the throat of the non-automatic coupling hook 3. A sleeve 13, in halves, embraces the shank of the hook 3, the outer end being connected to the coupler head 1 by the pin 15 and the inner end to the bolt 19 which is connected to the combined buffing and draw spring 20. An arm 5, integral with the head 1, yield. ingly supports, in elongated holes 12, the trun. nions 11 of the second head 7, which is centralized by a spring 8. The head 7 forms, with a corresponding head on the opposing vehicle, a spring- pressed joint for the steam or like conduits, a universal joint on the hollow trunnion 11 connecting up with the train pipe. When non-automatic; coupling is resorted to, the pin 4 is removed and the arm 5 secured to the underside of the carriage by means of a bolt 23.
Patent GB-834735-A (GB)
Title: Control arrangement for tractors
IPC: B62D51/00
Filed: 1958-03-14
Abstract: 834,735. Vehicle power steering. PORSCHE, F. March 14, 1958 [March 30, 1957], No. 8298/58. Class 79(5) A manually operated steering control valve 13, Fig. 1, auxiliary to the normal mechanical steering 5 and operable remotely through a cable 38 may be adjusted to selected positions for controlling other functions such as hydraulic damping or r locking for the steering or connecting an automatic steering device. The valve 13 normally steers the vehicle front wheels 3'by controlling a vane type hydraulic motor 12 attached to the support tube 11, Fig. 2, of a steerable axle shaft 10 to which it is connected through a detachable coupling 16. The valve 13 comprises a pair of parallel slide valves 26, 27, Fig. 4, having common supply and return connections 28, 29 and operated by the control arm 37 through a double arm lever 33 to control the supply of pressure fluid through pipes 24, 25, leading tochambers 22, 23 in the motor 12, The double arm lever 33 is pivoted at 37<SP>1</SP> in a guide 35 for steering. When the steering is required to be damped or locked the pivot 37<SP>1</SP> is moved into a narrow portion of the guide 35 to prevent rotation of the arm 37 and causing movement of the valves 26, 27 in unison, Fig. 5 and 6 (not shawn), to restrict or close the pipes 24, 25 so that the connection between the chambers 22, 23 is either restricted or closed. The valve 13 together with valve 51, 51', Fig. 8, may be used to connect an automatic guiding system in which a roller engaging a prevously ploughed furrow controls a rotary piston servo valve 43 on the motor 12 through an arm 46. With the arm 37 positioned as in Fig. 8 the supply and return lines 28, 29 are connected through the valves 51, 51<SP>1</SP> to supply and return passages 44, 45 in the rotary piston valve 43. Rotation of the valve 43 by the arm 46 controls the flow of fluid through passages 41, 42 in a tube 40 integral with the vane 14 of the motor.
Patent GB-937085-A (GB)
Title: Improvements in and relating to coke ovens
Inventor: OTTO CARL
IPC: C10B5/00
Filed: 1962-03-03
Abstract: A coke oven battery, e.g. of the gun flue regenerative type, comprises a plurality of spaced apart coking chambers with heating walls therebetween, each chamber being variably horizontally tapered outwardly from the pusher side to the coke side, the taper being steeper at the pusher side than at the coke side.  In an example, each chamber is divided into five zones each ten feet long, the taper, starting at the pusher end, being:-1,25, 1,0, 0,75, 0,5, 0,5 inches per zone respectively.
Patent GB-197649-A (GB)
Title: Improvements in or relating to loop transfer mechanism for circular knitting machines
IPC: D04B9/40
Filed: 1923-03-24
Abstract: 197,649. Wildman Manufacturing Co., (Assignees of Howie, K.). May 11,1922, [Convention date]. Circular machines.-In the production of a. string of rib tops with welts and intermediate portions of plain fabric, for subsequent transfer to the needles of another knitting machine, a series of latchless transfer members 14 mounted in an encircling bed 9 are employed. The last course of rib knitting has its dial loops transferred thereby to the cylinder needles and plain fabric is then knitted. The last course of dial loops thus register with cylinder loops so that the operative has only half the usual work to perform in running-on. The plain fabric portion is subsequently ravelled out. The invention is shown applied to a machine with rotary cams but is applicable to other types. The instruments 14 have butts 15 and are operated by a cam 16 which is connected by a link to the dial cam plate. The dial needles are recessed at 12, Fig. 12, for receiving the points 13 of the instruments 14, which during ordinary rib knitting remain in the position shown in Fig. 6. In making the last course of rib knitting the cylinder stitch cam is depressed to draw a loose course. On the next course of knitting the dial needles are not advanced for knitting and the dial is racked so as to bring them over the cylinder needles. The dial needles are then projected to the position shown in Fig. 6 so as to receive in their notches 12, Fig. 12, the points 13 of the instrument 14. The dial needles and the instruments 14 then move together to the position shown in Fig. 7, the dial loops being thus cast on to the points 13. The instruments 14 then withdraw to allow the cylinder needles to penetrate the dial loops and lift them off the points as shown in Fig. 9. Any loops not lifted off by the needles are cleared by a loop shedding member consisting of a wire rotating with the dial cams. The dial, cylinder and transfer cams are automatically operated by a vertically moving roller which acts upon pairs of striker arms geared together and lying in different horizontal planes.