baber/WOPTO huggingface dataset:
Patent GB-683095-A (GB)
Title: Improvements in and relating to method of producing vanillin, acetovanillone and other oxidation products
IPC: C08H5/02
Filed: 1950-11-03
Abstract: Vanillin, acetovanillone and other oxidation products as calcium derivatives are obtained from lignosulphonic materials such as sulphite cellulose liquor and alcohol plant effluent therefrom, by heating with aqueous lime at a range of pH=12-that of the saturated lime solution, to 120-200 DEG  C. at 50-300 lbs. p.s.i. with dispersed oxygen at a specified partial pressure, as in Specifications 683,093 and. 683,094, but the process being carried out continuously.  Apparatus for carrying out the reaction and curves showing the advantages of the continuous process are shown in drawings.  The vanillin &c. are obtained by acidification of the separated liquid products.  Examples of the method and tables of results are given.
Patent GB-339342-A (GB)
Title: Improvements in power driven harvesting, mowing and other agricultural implements ormachines
IPC: A01D75/30
Filed: 1929-09-05
Abstract: 339,342. Challacombe, A., and Ruston & Hornsby, Ltd. Sept. 5, 1929. Couplings for tractors.-The operating mechanisms of two or more agricultural machines are driven from the power take-off shaft of the ordinary tractor that hauls them. The tractor is coupled to the first machine-shown as a binder a-by a draught pole b, an intermediate shaft c, coupled through universal joints and expansion sleeves to the power take-off shaft of the tractor, lying along the draught bar and driving a shaft e on the binder a. The second binder h is connected to the first by an obliquely arranged draught pole i attached to a draught eye j on the second binder and pivoted at k to two forwardly diverging members l, m, firmly mounted on the front binder. A side stay n, connected to the second binder and to the draught pole by a connection o adjustable by a handwheel p for steering, maintains the second binder laterably out of the track of the first. The power shaft e is coupled to a similar shaft q on the second binder through shafts t, r and s, the intermediate shaft r being carried on the draught pole i and connected by universal joints to the two end shafts s, t, which are provided with extensible coupling members and connected by universal joints to the shafts e, q, respectively. The second binder is provided with a tilt link v suspended from a cranked bar wand carrying a wedge-shaped member 6. When the second binder is attached to the first the member 6 is moved laterally into a corresponding socket 5 secured to the draught bar. The socket has ledges to engage over the upper shoulders of the member 6 thus holding it against vertical movement; a pivoted plate 8, swung over the face of the socket after the member 6 has been inserted, locks it in position until it is desired to disassemble the machines.
Patent GB-1424107-A (GB)
Title: Method of and means for operating a dynamic semiconductor memory system
IPC: G11C11/406
Filed: 1973-06-06
Abstract: 1424107 Semi-conductor memories ADVANCED MEMORY SYSTEMS Inc 6 June 1973 [9 June 1972] 27039/73 Heading G4C A dynamic semi-conductor memory is automatically refreshed between read/write commands. As described a full address signal is only applied to each storage card (there being 26 storage cards 30 (Fig. 1) each comprising 32 chips having 32 by 32 cells) during a read/write operation, data being fed in or out on lines 72, 74 to or from the address specified by 15 address bits on line 38 which are fed via AND gates (A5-A9, Fig. 5, not shown) (bits 0-4), NAND gates (N20-N27) (bits 5-12) and inverters (I10, I11) (bits 13, 14) to decoders in drivers 32. Address bits 13, 14 select input/output lines (I/01-I/04, Fig. 2, not shown) to a pair of columns of chips (M1-M32), bits 10-12 result in a chip select signal (CS1-CS8) to select a chip in one of the selected columns, bits 0-4 select a row in the selected chip and bits 5-9 select a column. If no command signal is present, when a single-shot (SS9, Fig. 4, not shown) triggers, a lead (106) goes to its positive state to generate a refresh cycle signal. This primes AND gates (A11-A15, Fig. 5, not shown) to pass the contents of a refresh counter (C1) to the line associated with address bits 0-4. The triggering of the single shot (SS9) also results in a subsequent triggering of further single shots (SS1-SS4) to generate reset and clock signals on leads 56, 54 so that the selected row is refreshed. When the single shot (SS9) resets, the counter (C1) is incremented so that the next row is refreshed when the single shot (SS9) again triggers and there is no command signal. The refresh cycle is interrupted and its initiation of the refresh signal is prevented if a read/write command signal arrives by resetting of the further single shots (SS1-SS4).
Patent GB-1430024-A (GB)
Title: Radiation and convection air heater
IPC: F24H3/08
Filed: 1973-06-07
Abstract: 1430024 Air heating stoves; heat exchange elements SKODA NARODNI PODNIK 7 June 1973 [12 June 1972] 27278/73 Heading F4S In an air heater in which a combustion chamber 1 is connected by a flue transfer passage 10 to flue tubes 17, the flow of air to be heated is through a duct 2 surrounding the combustion chamber (from an inlet 3, Fig. 2) to a transfer duct 4, and thence in a tortuous path over the flue tubes 17 to an outlet (14, Fig. 2) for the heated air. The flue transfer passage 10 extends through the air transfer duct 4 and fins 12 extend into the air duct from the wall of the transfer passage to add further heat to the air as it flows through duct 4. Each of the flue tubes 17 comprises two steel sheets 19 having their edge portions bent towards each other and connected together by a weld 18 as shown in Fig. 3.
Patent GB-463081-A (GB)
Title: Improvements in or relating to lifting jacks operated by fluid pressure
IPC: B60S9/12
Filed: 1935-10-03
Abstract: 463,081. Lifting - jacks. LAKE & ELLIOTT, Ltd., and BATE, H. A. Oct. 3, 1935, No. 27306. [Class 78 (iii)] In a fluid -pressure lifting - jack the ram is connected positively to an operating plunger so that retraction is not dependent upon the action of the load. Fig. 4 shows a ram 7 which is forced downwards in the casing 8 by air, oil, semi-solid grease or the like forced through the tube 5 which leads to the actuating mechanism shown in Fig. 3. The latter comprises a plunger 13 moved by handoperated screw-mechanism 17 or by hydraulic power. The plunger is connected to the ram by a member 10 which may be rigid or flexible and may comprise a wire, rod chain or the like, which retracts the ram concurrently with the retraction of the plunger. The connecting - member may have a spring interposed between its upper end and the plunger to take up any slackness due to difference in the rate of travel of the ram and the plunger, and to keep the member under tension after leakage has occurred. Reduction gearing may be fitted between the handoperated gear and the plunger.
Patent GB-217498-A (GB)
Title: Shaving soap cake and holder therefor
IPC: A45D40/00
Filed: 1923-10-31
Abstract: 217,498. Ogden, B. Oct. 31, 1923. Soap tablets.-A cake 1 of shaving soap is made of flat approximately semi-circular shape with the diametral surface slightly curved inwardly.
Patent GB-876580-A (GB)
Title: Improvements in or relating to the treatment of spodumene
IPC: C22B26/12
Filed: 1959-08-11
Abstract: <PICT:0876580/III/1> <PICT:0876580/III/2> Lithium carbonate is obtained from beta spodument by a cyclic process in which the spodument is treated at 175-500 DEG C. with a gas containing water vapour, sulphur trioxide, and oxygen or an inert gas, leaching the product with sodium carbonate solution to give a solution of lithium and sodium sulphates, and precipitating the lithium as lithium carbonate.  The sulphur content of the solution is converted to sulphur trioxide, which is recycled, and the sodium content is converted to sodium carbonate, which is also recycled.  In one embodiment, illustrated by Fig. 2, after the p  beta spodument has been sulphated (3) it is leached with sodium carbonate solution (9) and filtered (10) to give a solution of lithium sulphate containing sodium sulphate.  The lithium is precipitated as carbonate by the addition of sodium carbonate (14) and filtered off (15).  The <PICT:0876580/III/3> <PICT:0876580/III/4> solution of sodium sulphate remaining is evaporated (16) and the solid is reduced to the sulphide (17) which is then treated with water and carbon dioxide (18) to give sodium carbonate, which is recycled, and hydrogen sulphide, which is burned with controlled amounts of air to give sulphur (11) and then sulphur dioxide (13) which is then catalytically converted, at least in part, to sulphur trioxide (7) which is recycled.  In another embodiment (Fig. 3), the solution from filter 10 is evaporated (19) to give solid lithium and sodium sulphates, which are reduced to the corresponding sulphides (20) and then converted to the carbonates (21).  These are leached with water (22) and the solution of sodium carbonate is recycled, whilst the lithium carbonate is left as solid. In a further embodiment (Fig. 4) the solution from filter 10 is treated with barium sulphide (24), the precipitated barium sulphate being removed (25), and reduced (26) to the sulphide, which is re-used.  The solution of lithium and sodium sulphides is treated with carbon dioxide (27), liberating hydrogen sulphide and precipitating lithium carbonate, which is recovered. The solution of sodium carbonate remaining is treated with sulphur dioxide and air (29) in amount sufficient to convert the sodium from the spodument to the sulphate, and this solution is then cooled (30) to crystallise out as much of the sulphate as possible, after which the solution of carbonate, still containing some sulphate, is recycled.  Fig. 1 is a flow sheet, illustrating prior practice, in which alpha spodument is heated in a decrepitator (1) to convert it to beta spodument, which is then sulphated (3) with sulphur trioxide and water vapour to form lithium sulphate, and a little sodium sulphate due to the presence of sodium.  Impurities are converted to insoluble sulphides by means of hydrogen sulphides (8), and the lithium sulphate is leached out by means of water (9).
Patent GB-1381779-A (GB)
Title: Transport guide for pliable sheet material
IPC: B26D5/00
Filed: 1972-06-12
Abstract: 1381779 Feeding webs and sheets; cutting webs HARPER & TUNSTALL Ltd 12 June 1973 [12 June 1972] 27419/72 Heading B8R Sheet material 29, Fig. 1, for use as copying paper, is fed from a roll 20 by roller-pairs 32, 40 through guides 38, 39 to join an original sheet fed between belts 13, 14, and thence to a copying machine 12, and the material 29, between the guides 38, 39, passes a cutter 43 and along a curved guide path defined by a stationary plate 41 and a roller 42 connected to a crank drive 52. In operation, when the leading edge of an original is detected by a switch 18, the rollers 32, 40 are rotated. When the trailing edge of the original is sensed by a switch 19, the rollers 32 are stopped by a brake 32A, the cutter 43 severs the material 29, and the roller 42 is moved away from the plate 41, so that the rollers 40 can continue to feed the severed sheet while the latter assumes a straighter path between the guides 38, 39. The roller 42 may be replaced by a movable plate 42C, Fig. 2. The material may be fed selectively from one of three rolls 20, 21, 22 of different width, through respective guides 35, 36, 37 into the common guide 38.
Patent GB-490975-A (GB)
Title: Improvements in or relating to idler wheel mounting in motor vehicles of the track-laying type
IPC: B62D55/10
Filed: 1937-10-08
Abstract: 490,975. Endless - track vehicles. JACKSON, L. MELLERSH-. (Marmon-Herrington Co., Inc.) Oct. 8, 1937, No. 27426. [Class 79 (i)] The load is transmitted to the endless track 13 by a pair or pairs of rollers 23 carried by diverging arms 21 coaxially pivoted on the vehicle body, the two arms of a pair being interconnected by a rubber annulus 19 bonded thereto, in such manner that a swinging movement of either arm relatively to the other torsionally stresses the annulus. In the construction shown each arm 21 is fixed to a hub 17 independently journalled at 16 on a pin 15 mounted in a bracket 14 on the vehicle. Each hub 17 has a metal tube 18 fixed thereto, and the rubber annulus 19 or two rubber annuli is or are bonded to the tubes 18 and to a single floating tube 20. When load is applied to the rollers the arms 21 rotate relatively to each other and stress the rubber annulus torsionally. Each hub 17 is provided with an upstanding arm 24 carrying a rubber buffer 25, these buffers limiting the spreading of the arms 21. The hubs 17 are shouldered on their bearings 16 so as to prevent axial movement and relieve the rubber annuli from axial stresses. In a modification the inner ends of the hub sleeves 17<1> abut against a thrust ring.
Patent GB-465268-A (GB)
Title: Improvements in or relating to shingles
IPC: C04B14/40
Filed: 1935-10-04
Abstract: 465,268. Roof shingles. TENNANT, W. J. (Bakelite Building Products Co., Inc.) Oct. 4, 1935, No. 27491. [Class 87 (i)] Shingles formed by coating an asphalted fibrous base 10 on one or both faces with hydraulic cement 12 and grit as described in Specification 423,694, are provided with a film of water repellant material before the cement has set, and curing is completed by stacking the shingles so that there is substantially no free circulation of air over the cement. The water-repelling film prevents bonding of the shingles and may also be applied to the uncemented faces. Suitable water repellents are synthetic resins, asphalt, wax, and oils such as linseed or tung oil. Alternatively, the water repellent may be incorporated, for example, from 1 to 10 per cent, in the cement mix. The shingles may be stacked with like or unlike faces in contact, or separating sheets 14, Fig. 14, of waxed or oiled paper or cloth may be employed; the sheets become wrinkled by absorption of moisture and produce a simulation of wood grain on the cement faces. Figs. 10 and 12 show methods of stacking shingles in which the asphalted base 10 is only partly coated with cement, and Fig. 18 shows stacked corrugated shingles.
Patent GB-832284-A (GB)
Title: Improvements relating to textile spinning, doubling, twisting and cop-winding machines
Inventor: BATES ERIC
IPC: D01H1/42
Filed: 1957-09-02
Abstract: 832,284. Protectors for threads. PRINCESMITH & STELLS Ltd. July 31, 1958 [Sept. 2, 1957], No. 27554/57. Class 120(2) In respect of each spindle, in ring spinning &c. machines, a collapsible shield 18 is attached to the underside of the ring rail 14, the shield being telescopic in the direction of the spindle axis so that as the chase traverses the spindle or bobbin and the winding point moves progressively from the base of the latter, the shield is automatically extended to enclose the completed parts of the package. The shield comprises a cylindrical cover capable of alternate expansion and contraction, in bellows-fashion, in response to the reciprocatory movements of the ring rail 14. The other end of the shield is attached to an apertured disc 181 which not only acts as a lateral support to the shield but also by surrounding the spindle encloses a space coaxial therewith. A plurality of guide rods 20 arranged equidistantly about the interior of the shield and extending parallel to the spindle axis, are anchored to the underside of the ring and passing freely through holes in the apertured disc, prevent the shield from being deflected inwards.
Patent GB-1319122-A (GB)
Title: Galvanic cells
IPC: G01N27/49
Filed: 1970-06-08
Abstract: 1319122 Electro-chemical analysis BIOMARINE INDUSTRIES Inc 8 June 1970 [6 June 1969] 27559/70 Heading G1N A galvanic cell for measuring the partial pressure of oxygen in a gas comprises an oxygenpermeable membrane 27, gold-plated stainless steel perforated disc cathode 24, lead anode 47, KOH electrolyte, and a spring-biased rubber diaphragm 41 to accomodate changes in electrolyte volume due to egress of water vapour through the membrane 27 and diffusion of inert gases out of the electrolyte within the cell. The electrodes 24, 47 are connected via leads 17', 16' and stainless steel plating 17, 16 on insulating disc 14 to an indicator 20. The membrane 27 may be of P.T.F.E. or polyethylene. The cell body 12 is of plastic. Insulator 48 is of porous nylon foam or polyethylene. Anode 47 may be a porous lead block or a wad of lead foil. A nylon screw 43 closes filling hole. A temperature-compensating thermistor (not shown) may be provided. Thicknesses are given.
Patent GB-1092242-A (GB)
Title: Process for the preparation of methionine
IPC: C07C/
Filed: 1965-06-29
Abstract: Methionine is prepared by reacting b -methyl-mercaptopropionaldehyde with (a) HCN, (b) NH4CN or (c) an inorganic cyanide, other than NH4CN, mixed with an ammonium salt in an aqueous medium saturated with ammonia at 0-75 DEG  C. to form g -methylmercapto-a -aminobutyronitrile and hydrolysing to amine nitrile to methionine. It is preferred to use gaseous, liquid or dissolved HCN and operate at 45-55 DEG  C. Ammonia saturation may be maintained by continuously passing gaseous ammonia through the aqueous medium.  It is preferred to cool the initial reaction mixture, e.g. to 20 DEG  C., to form two layers, an amino-nitrile rich layer and a layer rich in water, return the water rich layer to the aldehyde conversion step and hydrolyse the amino-nitrile rich layer, e.g. using HCl or H2SO4. Examples are provided.
Patent GB-880809-A (GB)
Title: Polymerisation of ethylenically unsaturated compounds and a catalyst therefor
IPC: C08F36/04
Filed: 1959-02-13
Abstract: A mixture of (a) a monovalent magnesium compound and (b) a compound of Ce or of a Group IVA, VA or VIA metal is used as a catalyst for the polymerization of ethylenically unsaturated compounds.  Such magnesium compounds (a) may be present on the surface of Mg metal in a mixture of the latter with divalent magnesium compounds or etherates thereof, specifically a mixture of Mg and MgI2.  MgBr may be prepared by heating phenyl magnesium bromide in a high vacuum at 250-300 DEG C.  Preparation of monovalent magnesium comppounds by electrolytic reduction is also mentioned, and literature references are given.  Specified components (b) are TiCl4, TiCl3, ZrCl4, VCl4, CeCl3, WCl5, Ti(OPr)4 and Zr(OEt)4.  The polymerization mixture preferably contains also anaromatic ketone, of which many examples are given.ALSO:A mixture of (a) a monovalent magnesium compound and (b) a compound of Ce or of a Group IVa, Va or VIa metal is used as a catalyst for the polymerization of ethylenically unsaturated compounds.  Such magnesium compounds (a) may be present on the surface of Mg metal in a mixture of the latter with divalent magnesium compounds or etherates thereof, specifically a mixture of Mg and MgI2.  MgBr may be prepared by heating phenyl magnesium bromide in a high vacuum at 250 DEG -300 DEG C.  Preparation of monovalent magnesium compounds by electrolytic reduction is also mentioned and literature references are given.  Specified components (b) are TiCl4, TiCl3, ZrCl4, VCl4, CeCl3 WCl6, Ti(OPr)4 and Zr(OEt)4. The polymerization mixture preferably contains an aromatic ketone, of which many examples are given.  In examples, ethylene, butadiene, isoprene and chloroprene are polymerized in presence of ether and benzene or toluene.  Monomers otherwise specified are propylene, butylene, isobutylene, cyclohexene, vinylcyclohexene, styrene, a -methylstyrene, nuclear-alkylated styrenes, divinylbenzene, acrylonitrile, dichloroethylene, vinyl chloride, and dimethylbutadiene; such monomers may be used in mixtures.  Solvents which may in general be used are, e.g., hexane, heptane, isooctane, cyclohexane, benzene, toluene and xylene, and mixtures thereof, as well as chlorobenzene and bromobenzene.
Patent GB-382046-A (GB)
Title: Improved golf putter head
IPC: A63B53/04
Filed: 1931-10-06
Abstract: 382,046. Golf clubs. OKE, W. G,. 34, Uxbridge Road, Hampton Hill, Middlesex. Oct. 6, 1931, No. 27679. [Class 132 (ii).] In a golf-club head of the putter type comprising a metal blade formed integral with a shank by casting or forging, the weight of the head is concentrated near the heel by connecting the front of the socket 1 and the top of the blade 2 by means of an integral web 3 that fills up, to some extent, the usual angle between these two parts and is of the same thickness as the top of the blade, or slightly less. The head is provided with two slightly lofted striking faces 4, 5 to enable the club to be used by right and left handed players. A sighting mark 6 may be formed at the junction of the web and blade.
Patent GB-190426-A (GB)
Title: Improvements in or relating to the control of trains
IPC: B61L3/22
Filed: 1921-06-20
Abstract: 190,426. Angus, A. R. June 20, 1921. Track apparatus actuating signals on trains and for stopping trains.- Train-controlling apparatus is adapted to give clearance to the train bv oscillation of an oscillating relay 87 to which current is supplied from sources on the track through contacts of a switch 4 dependent upon the direction of running of the train which puts the relay into a circuit which is resonant to one only of the frequencies supplied to the track for up and down running. The armature 21 of the relay 87 puts alternately in circuit with the battery 25, the slow releasing magnets 30, 40 the armatures 47, 51 cf which are in series with the relay 54 controlling the stop magnet 63. Specification 190,503 is referred to.
Patent GB-738931-A (GB)
Title: Improvements in or relating to an apparatus for agitating liquids particularly suitable in blood transfusion operations
IPC: A61M1/02
Filed: 1953-10-09
Abstract: 738,931. Agitating appliance for blood transfusion apparatus. RIEUTORD, L. M. A., and LEWIN, J. Oct. 9, 1953 [Oct. 11, 1952], No. 27817/53. Class 86. Agitating apparatus for blood and anticoagulant liquid in a bottle 32 in the course of a blood transfusion, is operated by the blood donor by successive actions upon a control device held in the donor's hand and connected by mechanism, including a free wheel device 50 and eccentric drive 35, to a plate 15 carrying the bottle 32 and suspended for movement substantially in its own plane. The plate 15, which is triangular, is suspended within a cage-like support by means of a rigid rod 16 at each of two corners of the plate pivotally connected by universal joints to the plate and to the top of the support, and by a V-shaped wire 19 with its apex at the third corner of the plate pivotally connected to the plate and the top of the support by means of eye members 20, 21. The plate 15 is tensioned by springs 22, 25 connected between the plate and the bottom of the support. The eccentric 35 engages the plate 15 by means of a resilient bushing 34, and when it is rotated by operation of the control device, it imparts to the plate a movement such that any point on the plate describes a closed curve which is very similar to an ellipse having an axis which substantially intersects the axis XX. The control device consists of a hand grip formed by pivoted members 56, 61, the successive movements of which are transmitted by a flexible cable 67 in a flexible sheath 66 to a cord 73 which is tensioned by a spring 80, is guided by pulleys 74, 78 and is wound around the operating member of the free wheel 50 to which it imparts rotary reciprocation. The free wheel 50 drives a shaft which carries the eccentric 35 at its upper end and a fly-wheel 47 near its lower end which ensures continuous rotation of the shaft. The bottle 32 is secured to the plate 15 at an angle thereto so that the movement of the plate does not result in mere rotation of the liquid in the bottle. The invention is also applicable for agitating liquids other than in the course of blood transfusion.