baber/WOPTO huggingface dataset:
Patent GB-392954-A (GB)
Title: Improvements in or relating to catalytic or adscrption processes and the manufactureof plural or mixed gels therefor
IPC: B01J21/00
Filed: 1931-11-20
Abstract: Catalytic masses comprising a carrier and a catalyst are obtained by mixing a washed undried hydrous oxide gel acting as a carrier and another washed undried hydrous oxide gel having catalytic properties, the amount of the carrier being more than 50 per cent by weight of the total mass, and then drying the mass, after forming into granules if desired.  A third washed and undried hydrous oxide gel may be added in an amount less than 10 per cent of the total weight of the mass to act as a promoter. The term "hydrous oxide gel" includes both hydrogels and gelatinous precipitates or mixtures of the two. Suitable gels are those of the oxides of iron, chromium, bismuth, aluminium, gallium, indium, copper, nickel, beryllium, titanium, zirconium, thorium, cerium, secondium, vanadium, manganese, silicon, germanium, tin, tantalum, molybdenum and tungsten, and they may be prepared in an suitable manner.  The oxides of aluminium, chromium, copper, bismuth, beryllium and cerium may be used as promoters. Plural gels may also be prepared, for example by mixing the sols should be either acid or alkaline in character. The masses are suitable as catalysts for the oxidation of sulphur dioxide to sulphur trioxide, the oxidation of hydrogen sulphide to sulphur or sulphur oxides, the oxidation of ammonia to nitric acid &c., or they may be used as absorbents for removing deleterious compounds, especially sulphur compounds, from gases. According to examples, (1) a catalyst for the oxidation of sulphur p  dioxide to trioxide is prepared containing about 92 per cent silica, 5 per cent vanadium dioxide and 3 per cent alumina.  (2) A plural gel of the oxides of iron and bismuth is prepared and mixed with hydrous gel.  The mass is used as a catalyst for the oxidation of ammonia to nitric acid.  (3) About 3-5 per cent by weight of a hydrous gel of vanadium pentoxide, obtained by fusing vanadium pentoxide, dissolving in water and adding potassium chloride, is mixed with a mixture of hydrous gels of silica, alumina and vanadium tetroxide and dried.  The product is a catalyst for the oxidation of sulphur dioxide to trioxide.  (4) A catalyst for the removal of sulphur compounds such as carbon bisulphide and hydrogen sulphide from gases consists of about 2-3 per cent of ferric oxide mixed with silica.  (5) A catalyst for removing deleterious compounds from gases consists of about 2-3 per cent of ferric oxide gel and 91-94 per cent silica gel, the mixture being dried, after extruding if desired.  (6) A catalyst for the oxidation of sulphur dioxide to trioxide consists of about 8 per cent of vanadium tetroxide gel mixed with titanium oxide gel.  (7) A mixture of 2-3 per cent of hydrous tungsten oxide gel with hydrous silica gel may be used as an adsorbent or catalyst. (8) About 2-3 per cent of a plural gel containing the oxides of tin and tungsten is mixed with hydrous silica gel.  The product exhibits both adsorptive and catalytic properties.
Patent GB-740954-A (GB)
Title: A relay for receiving electrical impulses of different frequency superposed on a heavy current network
IPC: H01H51/30
Filed: 1953-11-20
Abstract: 740,954. Electromagnetic relays. LANDIS & GYR AKT.-GES. Nov. 20, 1953 [Nov. 22, 1952], No. 32301/53. Class 38(5) A relay responsive to impulses of a certain frequency superimposed on a heavy current network and having a resonant circuit including a condenser, tuned to the superimposed frequency, is characterized in that the leakage flux in shunt with the effective armature flux is small and in that an air gap is provided in series with the armature air gap in order to minimise variation of the inductance of the resonant circuit due to movement of the armature, the reluctance of the series air gap being large in relation to the armature air gap. As shown in Figs. 8, 9, the relay core is in two parts 1, 2 mounted by screws 5, 6, 7 to a holder 4, the holes for the screws 5, 6 being elongated to permit movement of the part 1 by the key 22 of a rotatable eccentric pin 8 for tuning purposes. The armature 9 rotates with a spindle 10 to turn a cam 17 and move a contact spring 18 to engage a spring 19. The series air gap 13 is situated within the coil 14, the latter being connected in series with a condenser 16 to form the resonant circuit. In a modification (Fig. 10, not shown), the armature is so shaped that when it turns its air gap does riot vary, as in Fig. 8, but its area in register with the opposed ends of the core 1, 2, varies. According to Fig. 7, the core has two series air gaps, SL1, SL2, and two coils Sl, S2, A being the armature. The two coils 'may be connected together with a condenser to form a single resonant circuit or, as shown, each coil may have its own condenser K1 or K2, the coil S2 being indirectly coupled with the coils S1 and having its circuit completed through a resistance R. This arrangement enables the tuning of the resonant circuit to be less critical. The Specification gives the theory underlying the construction and distinguishes the invention from the relay disclosed in Specification 610,016.
Patent GB-604648-A (GB)
Title: Vehicle suspension
IPC: B60G11/00
Filed: 1945-11-30
Abstract: 604,648. Steering motor vehicles. GREAVES, R. Nov. 30, 1945, No. 32343. [Class 79 (v)] [Also in Group XXXII] In a resilient suspension for steerable wheels (see Group XXXII) in which each wheel hub assembly 19 is carried by a swinging arm 120, pivotally connected to the chassis at 22, 24, separate steering track rods 50 are associated with each wheel. The track rods 50 are actuated through a common three-armed crank 51, the vertical pivotal axis of which passes through the intersection of the two swinging arm pivot axes 22, 24.
Patent GB-174485-A (GB)
Title: An improved soap drainer or stand
IPC: A47K5/03
Filed: 1920-11-17
Abstract: 174,485. Dixon, H. Nov. 17, 1920. Soap stands.-A soap stand or drainer comprises a single strip or ribbon of celluloid, vulcanite, china, or enamelled iron, arranged to provide a continuous raised edge for the soap to rest on. Fig. 1 shows a rectangular form with sloping sides a and sharp upper edges b, and Fig. 2 a form in which the strip c is corrugated and formed into a cylinder. Any other form may be adopted. The Provisional Specification states that the stand may form part of a soapdish, bath, or wash-basin.
Patent GB-1463487-A (GB)
Title: Method of manufacturing an extruded metal component
IPC: B21K21/04
Filed: 1973-07-06
Abstract: 1463487 Extruding LUCAS ELECTRICAL Ltd 26 June 1974 [6 July 1973] 32446/73 Heading B3P A hollow cylindrical metal component 11 with one or more axially extending splines 14, on its external surface, such as a starter motor pinion, is produced by forcing a cylindrical billet into a die 18 using a punch 22 and a counterpunch 24, the die having axially extending ribs 19. The ribs 19 are recessed 21 behind their leading edge to reduce frictional drag on the metal. The counterpunch 24 is moved relative to the die 18 by the extruded material but sufficiently slowly to ensure complete formation of the splines between the die ribs 19. The force applied by the counterpunch is arranged to be substantially equal to the product of the yield stress of the billet and the area of the billet contacting the counterpunch.
Patent GB-630482-A (GB)
Title: Improvements relating to arc chutes for air-break circuit-breakers
IPC: H01H9/36
Filed: 1947-12-09
Abstract: 630,482. Arc-rupturing in switches. REYROLLE & CO., Ltd., A., and ROBERTS. F. A. Dec. 9,1947, No. 32492. [Class 38(v)] An arc-chute for an air-break switch having a moving contact 10 and arcing horns 12. 13, consists of a stack of spaced, mutually insulated, conducting or metal plates 16, 17, the lower edges of which are respectively inclined in opposite directions to form an inverted V-shaped channel. Initially, the arc travels straight through the channel between the horns 12, 13 but is caused to rise in the chute by magnetic biassing or air-blast and take a constantly increasing serpentine path around the plate edges. Eventually the arc splits into a series of short arcs extending between adjacent plates and is extinguished. The magnetic biassing is obtained by a blowout coil (Fig. 5, not shown) and pole pieces 14, or by making the plates 16, 17 of magnetic material. The inclined plate edges may alternatively be curved.
Patent GB-751094-A (GB)
Title: Improvements relating to machines for cutting leaf tobacco
IPC: A24B7/12
Filed: 1953-11-10
Abstract: 751,094. Tobacco-cutting machine. LEGG, Ltd., R., and SCHREIBER, P. Q. R. Nov. 10, 1954 [Nov. 10, 1953], No. 32537/54. Divided out of 751,015. Class 5 (1). In a rotary drum type of tobacco-cutting machine the knives 10 are clamped between a block 28 and a right-angled plate 30, 42 pivoted at 34, by screwing out a wedge-faced bar 50 relative to a co-operating wedge-face 48, Fig. 4, bearing against the bar 44. Specifications 665,653, 751,015, 761,092, 751,093 and 751,095 are referred to.
Patent GB-203243-A (GB)
Title: Improvements in devices for facilitating the sliding of glass doors, shutters and the like
IPC: E05D15/06
Filed: 1922-11-28
Abstract: 203,243. Courtney, Pope, & Co., Ltd., and Lyons, C. Nov. 28, 1922. Rectilinear-motion bearings. -A roller or like bearing for the offset track of an unframed glass door &c. of a show case &c. is attached to the glass by means of a clamp 5, which engages the glass frictionally with or without cement &c. The roller may be plain or ball bearing, and partially enclosed in a box 6. or mounted on a pin projecting from the side of the clip.
Patent GB-452139-A (GB)
Title: Process for the manufacture of wetting, cleansing and dispersing agents
IPC: D06M13/342
Filed: 1934-11-12
Abstract: Products applicable as wetting, cleansing, dispersing, emulsifying, and softening agents are obtained by acylating primary or secondary alkoxyarylamine-m- or p-monosulphonic acids of the benzene series with oleic acid or its anhydride or chloride.  The following examples are specified: (1) 4-Amino-1-ethoxybenzene-2-sulphonic acid is stirred in caustic soda solution with gradual addition of oleic acid chloride, the temperature being kept below 15 DEG  C. and the jelly-like paste obtained is neutralized; the product may be used as a scouring and dispersing agent, its aqueous solution being stable to hydrolysis by mineral acids and exerting a powerful dispersing action on lime soaps; (2) 4-Amino-1-methoxybenzene-2-sulphonic acid is similarly treated with oleic acid chloride; (3) 2-Amino - 1 - methoxybenzene - 4 - sulphonic acid is similarly treated with oleic acid chloride; the product is an aqueous gel mixture less clear and less soluble than that of (1) or (2).  Specifications 341,053 and 343,524 are referred to.ALSO:Products applicable as wetting, cleansing, dispersing, emulsifying, and softening agents are obtained by acylating primary or secondary alkoxyarylamine-m- or p-monosulphonic acids of the benzene series with oleic acid or its anhydride or chloride.  The following examples are specified: (1) 4-Amino-1-ethoxybenzene-2-sulphonic acid is stirred in caustic soda solution with gradual addition of oleic acid chloride, the temperature being kept below 15 DEG  C., and the jelly-like paste obtained is neutralized; the product may be used as a scouring and dispersing agent, its aqueous solution being stable to hydrolysis by mineral acids and exerting a powerful dispersing action on lime soaps; (2) 4-Amino-1-methoxybenzene-2-sulphonic acid is similarly treated with oleic acid chloride; (3) 2-Amino-1-methoxybenzene-4-sulphonic acid is similarly treated with oleic acid chloride, the product is an aqueous gel mixture less clear and less soluble than that of (1) or (2). Specifications 341,053 and 343,524 are referred to.
Patent GB-754320-A (GB)
Title: Replaceable nozzle for drill bits
IPC: E21B10/18
Filed: 1954-11-11
Abstract: 754,320. Well drilling bits. HUGHES TOOL CO. Nov. 11, 1954 [April 5, 1954], No. 32690/54. Class 85 A well drilling bit head has one or more easily replaceable flushing fluid nozzles of wear resistant material, each nozzle being a sliding fit and having releasable locking means. A .bit head 1 of the rolling cutter type has downwardly extending bosses 5 each having a passage 6 the end of which is counter-bored to receive a nozzle 7 which is retained against a shoulder 9 by a releasable snap ring 11. The nozzle has an annular groove 15 containing a sealing ring 16. The annular groove 15 may be formed in the wall of the counter-bore. In a modification, Fig. 4, a nozzle 7<SP>11</SP> is slid into a counter-bore 8<SP>1</SP> from inside the passage 6, a sealing ring 16 being placed between a shoulder on the nozzle and the end 20 of the counter-bore, and a releasable snap ring 24 retains the nozzle in position.
Patent GB-252304-A (GB)
Title: Improvements relating to the recovery of sodium hydrate or carbonate
IPC: C01D1/32
Filed: 1925-12-28
Abstract: 252,304. Taylor, L. N. Dec. 28, 1925. Acetic acid; acetone; alcohol. - The organic matter present in waste liquors obtained in the treatment of cellulose material with caustic soda is precipitated by the addition of magnesium bicarbonate, and after removal is distilled whereby acetic acid, acetone and alcohol may be obtained.
Patent GB-1340305-A (GB)
Title: Photoelectric keyboard for data input devices
IPC: H03K17/969
Filed: 1972-07-13
Abstract: 1340305 Keyboards INTERNATIONAL STANDARD ELECTRIC CORP 13 July 1972 [15 July 1971] 32734/72 Heading G4H Operation of a key 1 on a keyboard switches a corresponding coded shutter mask 7 between two stable positions, thus momentarily blocking the passage of light through apertures 8 in a corresponding aperture mask 8 to photo-cells (not shown) to produce a coded output identifying the depressed key. Pressing the key causes a tappet 3 to rotate a profiled cam 4 between the two positions shown, stability being ensured by a spring 6. A shutter 7b and an aperture 8b which are of smaller dimension than the other shutters and apertures 7a, 8a co-operate during movement of mask 7 to produce a strobe pulse while the light beam is being obscured. With this arrangement a false output is practically excluded even if two keys are pressed in close succession. The mask 7 may be circular and rotatable. (For Figures see next column.)
Patent GB-806648-A (GB)
Title: Improvements in or relating to remote control switch units
IPC: H01H3/50
Filed: 1955-11-16
Abstract: 806,648. Switching systems for remote control circuits. SIEMENS - SCHUCKERT (GREAT BRITAIN) Ltd., and DIXON, B. J. Nov. 14, 1956 [Nov. 16, 1955], No. 32798/55. Class 38 (4). [Also in Group XXXVII] In a remote-control circuit of the type wherein a main contactor, whose coil, connected in series with a resistor across a supply, is energized by the resistor being momentarily shorted, a pilot relay which is closed mechanically and held electrically breaks the control circuit on interruption of the supply. In the Figure, a transformer 2 has its secondary circuit 1 completed through a resistor 5, contactor coil 6, stop switch contacts 14, 15, relay contacts 23, 24, coil 22, rectifier 20 and earth. Initial movement of a starting push 11 closes contacts 23, 24, but the current flow is insufficient to operate contactor coil 6. Further movement closes contacts 18, 19, shunting coil 22 and energizing coil 6, which is still held through coil 22 when push 11 is released. On interruption of the supply, coils 6 and 22 are de-energized. The circuit cannot be reset except by manual re-engagement of push 11.
Patent GB-1096190-A (GB)
Title: Improvements in or relating to anthelmintic compositions
IPC: C07D235/32
Filed: 1965-07-30
Abstract: Ethyl 2-benzimidazolyl thionocarbamate is prepared by reacting 2-aminobenzimidazole with CS2 and ethanol.  By treatment with ethyl iodide and dimethylformamide it may be converted to 2-benzimidazolyl-thiocarbamic acid S-ethyl ester.  Ethyl 2-benzimidazolyl carbamate is prepared by reacting cyanamide with ethyl chloroformate in pyridine and subsequently treating the reaction mixture with o-phenylene diamine.  The methyl, propyl, butyl and isobutyl esters may be prepared by analagous reactions using the appropriate chloroformates.ALSO:Anthelmintic compositions comprise a carrier and a compound of the general formula <FORM:1096190/A5-A6/1> in which R=H or C1-5 alkyl, R1 is C1-6 alkyl and X and X1 are each oxygen or sulphur atoms, at least one being oxygen.  They may be in forms suitable for oral administration and the invention includes methods of combating helminths in animals by administering the active compounds of the invention.
Patent GB-1474835-A (GB)
Title: Energy storage device
IPC: F16D55/40
Filed: 1975-08-06
Abstract: 1474835 Bolting CATERPILLAR TRACTOR CO 6 Aug 1975 [11 Nov 1974] 32899/75 Heading F2H To improve the safety of removing a member 14 from, or fitting it to, a member 16 while they are subject to a force urging the members apart, each of a plurality of fasteners 12 for securing the members 14, 16 together is engageable with the member 16 and can be adjusted relative to the member 14 by only a limited axial distance D, by virtue of a stop 66 or 76 on the member 14, which distance D is less than the axial movement of the fastener relative to the member 16 necessary for full assembly or disassembly of the members. In the disc brake assembly shown, an annular piston 42 is urged against a brake ring 53 by springs 46, and is retained in a housing 16 by a cover disc 14. Fluid pressure admitted to an annular chamber 50 overcomes the spring force to move the piston 42 rightwards, Fig. 2, away from the ring 53. Five studs 54 screwed into threaded bores 24 in the housing 16 project through clearance holes 36 in the cover 14 to receive securing nuts 58. Each nut has a radial flange 60 which projects into a semicircular recess 68 in a lug 66 on the cover to limit the axial movement of the nut relative to the cover. In a modification, Fig. 4, the movements of plain nuts 74 are limited by inwardly projecting flanges 76 of the cover 14. The nuts 58, 74 have counterbores 59 at their bearing ends. To release the cover 14, all the nuts must be backed off a distance D in turn, this backing off sequence being repeated several times until the nuts are disengaged from the studs. This prevents the cover from being cocked by more than a small amount, e.g. 0À2 degrees, during assembly or disassembly, and avoids the risk of sequential failure of the studs which could occur with excessive cocking.
Patent GB-768944-A (GB)
Title: Production of the bis-ª , ª -dimethylbenzyl diether of octa-2:6-diene-1:8-diol
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07C43/14
Filed: 1953-11-27
Abstract: The bis-a ,a -dimethylbenzyl diether of octa2 : 6-diene-1 : 8-diol is produced by a process which comprises reacting together butadiene-1 : 3 and isopropylbenzene hydroperoxide in an aqueous liquid medium containing ferrous sulphate.  The isopropylbenzene hydroperoxide starting material may be present as the isolated compound or as a crude reaction product, e.g. obtained by the oxidation of isopropyl benzene, preferably from which residual isopropylbenzene has been removed.  Acetophenone and phenyl dimethyl carbinol may be present. The ferrous sulphate may be added as an aqueous solution or suspension.  Temperatures below room temperature are preferred and antifreezing agents such as urea or acetone may be present in the reaction mixture.  At elevated temperatures superatmospheric pressures may be employed. The desired product may be separated and fractionated, or the crude product, after removal of low-boiling compounds, may be hydrogenated to obtain the corresponding saturated diether which may be further hydrogenated or subjected to acid-catalysed pyrolysis to obtain octane-1 : 8-diol.  Examples are furnished in which the process is carried out in the presence of acetone with cooling and in a nitrogen atmosphere.  Specification 749,881 is referred to.
Patent GB-539452-A (GB)
Title: Improvements in or relating to sewing machines and to seams produced thereby
IPC: D05B57/02
Filed: 1939-12-28
Abstract: 539,452. Sewing - machines. ARMSTRONG, J. J. V. (Union Special Machine Co.). Dec. 28, 1939, No. 32926. [Class 112] A compound seam comprises a fabric uniting seam set in from the fabric edge and an overedge seam. The stitches of each seam are complete in themselves but are further inter-looped with the stitches of the other seam so that either seam can be separately unpicked. Fig. 5 shows an example in which each seam is a line of single thread loop stitches and the thread loops of the overedge seam are carried through the loops of the plain seam. In another example both seams are double loop seams and the needle-thread loops of the overedge stitches are passed through the under thread loops of the plain seam. Fig. 4 shows the stitch-forming mechanism. The plain seam needle 4 co-operates with a looper 19 and, in place of a needleavoiding movement of the looper, the looperthread is spread for the needle by a hook 18. The overedge seam needle 5 co-operates with a looper 21 and a hook or looper 23 which carries the thread loops over the fabric edge. This looper has a horn 24 which engages the plain seam needle thread above the work and thereby tightens seam stitches. The needles 4, 5 are on one bar and the loopers 19, 21 one one shaft.
Patent GB-329273-A (GB)
Abstract: 329,273. British Thomson-Houston Co., Ltd., Warren, H. W. H., Garton, C. G.,. and Smith, A. E. Feb. 11, 1929. Plastic composition containing synthetic resins and fibres.-Thin articles such as cylinders, cones, discs, or sheets are made from the felted fibrous mass used in the manufacture of pressboard, the water-wet mess being soaked in aleohol, and then in a bonding material such as a synthetic resin of the phenol formaldehyde, urea formaldehyde or glycerine phthalic anhydride type, allowed to dry and hot-pressed in a mould. Specification 284,232 is referred to.
Patent GB-1439515-A (GB)
Title: Cutting tool
IPC: B26B9/00
Filed: 1973-07-10
Abstract: 1439515 Hard knives TOMORROW ENTERPRISES Inc 10 July 1973 [24 July 1972] 32941/73 Heading B4B A cutting tool, e.g. a table knife 10 is provided with a cutting edge 18 terminating in a damagepreventing top 16 having a smooth surfaced contact portion 25a such that, during use, the downward forces are transmitted from the tool to a work-support surface 19 over an area rather than concentrated at a point thereby substantially preventing scratching or cutting of the support surface. As shown in Fig. 1 a table knife having a serrated cutting edge 18 is provided with a rounded tip 16, portion 25a, Fig. 4, thereof being rounded as shown in Fig. 8 in order to prevent damage to a work surface. When the knife is used at various angles; the cutting edge may be non-serrated. As shown in Fig. 4, the rounded portion is honed from a junction point 22a with the knife edge 18 such that it widens out until it blends into the thickness of the blunt edge 28a. This tapering effect causes less drag as the knife blade moves through the object being cut. The knife may also be formed with damage-preventing tip 30, Fig. 1 having a planar surface and that in combination with the tip 16, the knife edge may be moved parallel with the work surface 19 without cutting into the latter.