baber/WOPTO huggingface dataset:
Patent GB-106349-A (GB)
Title: Improvements in or relating to Variable-throw Pedal-cranks and the like.
IPC: B62M3/08
Filed: 1916-06-08
Abstract: 106,349. Park, J. R. June 8, 1916. Cranks, variable-throw.-A pedalcrank for bicycles &c. comprises a driving-arm B fixed on the axle A, a shorter arm C loose on the axle and carrying a pedal D<1>, and means whereby the pedal automatically engages the driving-arm at an extended radius. A roller E<2> carried by an extension E of the pedal bears in a suitable curved recess B<2> in the driving-arm B during the down-stroke. The arm B is confined within a cage C<1> attached to the arm C, and carries a cam-plate B<3> which raises the loose arm C during the upstroke. The pedal is provided with a toe-plate D<2> having a toe-clip D<4> and hinged at D<3>, to cause the line of foot pressure to be applied over the hinge instead of over the pedal pin D when the plate is tilted.
Patent GB-273001-A (GB)
Title: Improvements in and relating to cutter-crush type
IPC: B44B5/02
Filed: 1926-03-25
Abstract: 273,001. Walpole, G. S. March 25, 1926. Embossing-surfaces. - Type for cutter-crush embossing has the plane face 5 surrounding the cutting ridge 4 of each individual type of slightly greater depth from the actual cutting edge than the pressure surface 3 of the type so as to act as a positive stop and limit the penetration of the type into the card or ticket being embossed. The face 5 is preferably formed integrally with the parts 3, 4 of the type. Specification 213,376 is referred to.
Patent GB-565824-A (GB)
Title: Improvements relating to the treatment of water for colour removal
IPC: C02F1/28
Filed: 1943-05-24
Abstract: 565,824. Purifying water. ALDRED, F., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 24, 1943, No. 8214. [Class 46] Water is treated for the removal of colour with calcium or magnesium aluminate while maintaining the pH value between 4 and 8 and the insoluble matter is separated from the water. Aluminium sulphate or chlorinated ferrous sulphate may also be added. The pH value is controlled by the addition of an acid or aluminium sulphate. The calcium or magnesium aluminate may be added to water passing forward in a main to a pressure filter or may be distributed on a filter bed, for example, by using this bed for filtering the suspension in which the aluminate is prepared and thereafter using the bed for the removal of colour from the water to be treated. The aluminate is prepared by reaction of an aqueous solution of a magnesium or calcium salt, e.g. a sulphate or chloride with an aqueous solution of an aluminate or aluminium salt and, if necessary, adding caustic soda to give a pH value greater than 7. For the treatment of every million parts by weight of water, the quantity of aluminate used is that equivalent to 1-20 parts by weight of Al2O3.Specification 526,254 is referred to.
Patent GB-1105540-A (GB)
Title: Improvements in or relating to polyphase dynamoelectric machines
IPC: H02K3/28
Filed: 1967-02-21
Abstract: 1,105,540. Winding layouts for alternators. GENERAL ELECTRIC CO. 21 Feb., 1967 7 [23 Feb., 1966], No. 8236/67. Heading H2A. In an alternator having more than one wind - ing circuit in parallel, circulating current is prevented by transposing the conductors of the separate circuits between top and bottom phase-belt. Thus, as shown for a machine having four parallel paths per phase, in phasebelt 113, the sequence of the two parallel circuits 1, 2 is interchanged between the top phase-belt 107 and the bottom phase-belt 108, one being the mirror image of the other. This is achieved by varying the pitch of individual coils (Fig. 1a, not shown) by means of jumpers 109. The other circuits 3, 4 of phase-belt 114 are similarly interchanged. The coil sides on either side of a centre line of the top phase-belt are, in the layout shown, in complementary mirror image to each other, so that the vector sums of the voltages of the two top layer circuits differ only in phase displacement. This phase displacement is cancelled by the reverse sequence of the lower layer. Alternatively, (Fig. 4, not shown), the two halves of the phasebelts may be in simple mirror image relationship so that the vector sums differ only in magnitude, this difference being mutually opposite in the top and bottom belts respectively and thus cancelling each other.
Patent GB-357482-A (GB)
Title: Improvements in the manufacture and production of quartz mirrors, especially of concave mirrors for astronomical purposes
IPC: C03B19/01
Filed: 1930-03-15
Abstract: 357,482. Fused silica. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main, Germany. March 15, 1930, No. 8397. Convention date, April 22, 1929. Void [Published under Sect. 91 of the Acts]. [Class 56.] A method of making quartz mirrors, especially of concave mirrors for astronomical purposes, consists in projecting quartz in the form of drops on to a base of translucent quartz which is maintained at a very high temperature. The drops of quartz are obtained by mixing finely-divided rock crystal with the oxygen of anoxy-acetylene or oxy-hydrogen blowpipe.
Patent GB-1218176-A (GB)
Title: Particulate fertilizers containing urea
Inventor: CHAPMAN DEREK JOHN
IPC: C05C5/00
Filed: 1967-02-22
Abstract: 1,218,176. Urea. FISONS FERTILIZERS Ltd. 1 May, 1968 [22 Feb., 1967], No. 8416/67. Heading C1B. [Also in Division C2] Urea granules or the like are formed continuously from a urea melt containing potassium chloride and/or nitrate, the mixture (which may be a solution or suspension) being at a temperature of less than 130‹ C. 3-50% of potassium salt may be employed. The melt may be prilled, extruded or flaked and the product blended or granulated with other fertilizer material. Alternatively, the melt may be granulated by spraying on to other fertilizer material or recycle material at elevated temperature in a rotating drum or paddle mixer. Other fertilizer material may be ammonium nitrate, phosphate or sulphate; single or triple superphosphate; or potassium chloride, sulphate, phosphate, nitrate or metaphosphate.
Patent GB-568186-A (GB)
Title: Improvements in methods of concentrating ores
IPC: B03D1/01
Filed: 1943-05-26
Abstract: The separation of acidic materials, such as silicious gangue, from other ore constituents by flotation, stratification, tabling and like processes is effected in the presence of an alkyl amidine of the formula <FORM:0568186/IV/1> or a water-soluble salt thereof, where R is an alkyl radical having 8-32 carbon atoms, and R1 and R11 are hydrogen or alkyl or alkylol radicals.  The compounds may be prepared by treating an alkyl imino ether hydrochloride with ammonia.  For example, tridecano- or stear-imino ethyl ether hydrochloride gives the tridecano- or stear-amidine salt.  Other alkyl imino ethers such as tetradecano-imino-n-butyl ether, dodecyl-imino methyl ether, octadecano-imino ethyl thioether, hexadecyl-imino-ethyl thioether or tridecano-imino ethyl ether may be used and ammonia may be replaced by alkylamines or alkylolamines such as methyl, ethyl, diethyl, butyl, dibutyl, monoethanol or diethanol amine, ethylenediamine or diethylenetriamine to give substituted amidines.  Salts such as hydrohalides, sulphates, nitrates, phosphates, formates or acetates may be used or the imino group may be alkylated to give water-soluble compounds.  Other alkyl amidines specified include lauramidine, cerotamidine, N - ethyl decano - amidine, N - dimethyl lauramidine, N-hydroxyethyl myristamidine, N-lauryl octanoamidine, the diethylamidine from coconut oil fatty acid, amidine from the nitrile of carboxylic acid prepared by oxidation of paraffin, and other vegetable oil fatty acid amidines.  The compounds are particularly useful in the separation by froth flotation of silica or silicates from non-metallic ores, especially phosphate rock.  They are used in amounts ranging from 0.2 lb. per ton of ore, either alone or with other promoters or materials, e.g. fuel oil, pine oil, hydrocarbon oils, fatty acids or esters, in aqueous solutions or emulsions, or in organic solvents such as alcohol.  Results are given of a test on deslimed phosphate rock using pine oil with tridecano-amidine hydrochloride.  The treatment of rake classifier sands from cement works and of iron ores also is referred to.
Patent GB-1481577-A (GB)
Title: Process for the manufacture of oxo compounds and silyl vanadates as catalysts therefor
IPC: C07C47/20
Filed: 1975-02-28
Abstract: 1481577 Ethylenic oxo compounds F HOFFMANN-LA ROCHE & CO AG 28 Feb 1975 [1 March 1974] 8445/75 Heading C2C [Also in Division C3] Acetylenic alcohols are isomerized to ethylenic oxo compounds by contacting them with a silyl vanadate (Ph<SP>1</SP> 3 SiO) m (RO) 3-m V = O, wherein Ph<SP>1</SP> is a phenyl group having at least one electronwithdrawing substituent, R is a C 1-6  alkyl, a cycloalkyl, a phenyl, or a phenyl-C 1-6 -alkyl group or a group K 3 Si, wherein K is a C 1-6  alkyl, a cycloalkyl, a phenyl, or a phenyl-C 1-6  alkyl group, and m is 1, 2 or 3. Suitably 0.1-5 mol per cent of catalyst is used, at up to 150‹ C., preferably 40-110‹ C., optionally in a solvent. In Example 3 3-hydroxy-3 : 7-dimethyl-oct-6- en-l-yne is isomerized to citral at 95‹ C. over 8 hours in a paraffin oil i.p.o. In Example 4 the catalysts are used in the same isomerization. In Examples 3 and 5-12 the catalysts are used for the isomerization of: [3] 3 : 7- dihydroxy - 3 : 7 - dimethyl - oct - 1 - yne and [8] its 7 - methoxy derivative, [5,10 and 11] 3- methyl- or 3-phenyl or 1-propyl-3-hydroxybut-l-yne, [6 and 7] 3-hydroxy-3 : 7 : 11- trimethyl - dodeca - 6 : 10 - dien - 1 - yne and 3 - hydroxy - 3 : 7 : 11 : 15 - tetramethyl - hexadec - 1 - yne, [9] 1 - ethynyl - cyclohexanol, and [12] 4-ethynyl-4-hydroxy- 1 : 1-ethylenedioxy-3 : 5 : 5-trimethyl-cyclohex-2-ene.
Patent GB-297726-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1928-03-21
Abstract: 297,726. Rubber Service Laboratories Co., (Assignees of Scott, W.). Sept. 26, 1927, [Convention date]. Aldehyde ammonias.-A vulcanizing accelera.- tor is made by condensing an aldehyde-ammonia with a further quantity of the same or a different aldehyde. The compound may be made by saturating an aldehyde with gaseous ammoma while maintaining the temperature at not more than 25‹ C., and treating this aldehyde ammonia with preferably an equi-molecular proportion of the same or a different aldehyde in a closed vessel by heating to 90-95‹ C. when the pressure developed by the reaction begins to fall, until the pressure remains constant. The reaction is preferably carried out in the presence of small quantities of an acid having at least four carbon atoms, for example butyric acid. If a stronger acid is employed, it must be neutralized subsequently. The preferred aldehydes are those having a straight chain and containing more than three carbon atoms such as butylaldeyde, heptaldehyde, croton aldehyde, aldol. Formaldehyde is excluded. The proportions of aldehyde combined with the aldehyde-ammonia may vary, but the most satisfactory products are those containing one-half to not more than two molecules of aldehyde to each molecule of aldehyde ammonia. Examples are given showing the effect of vulcanizing rubber mixes in the presence of the reaction products of various proportions of butylaldehyde and butyl aldehyde-ammonia, butylaldehyde and croton aldehyde-ammonia and croton aldehyde and butyl aldehyde-ammonia.
Patent GB-1141171-A (GB)
Title: Vehicles for laying pipelines
IPC: B62D49/06
Filed: 1966-02-28
Abstract: 1,141,171. Motor vehicles; transporting unclassified loads. E. BOBARD. 28 Feb., 1966 [26 Feb., 1965], No. 8643/66. Headings B7B and B7H. [Also in Divisions A1 and F2] A vehicle for use in laying and recovering pipelines comprises an open frame 1 with on each side wheel-carrying legs 7, 8 and load supports including inwardly extending opposed pairs of horizontal support bars 10g 10d and 13g, 13d with gaps between the pairs through which pipes 15 may be lowered. The vehicle also includes a motor M, a stirrup-shaped frame member 12 which is pivotable about pivots G, D by cable 18, and pipe support rollers 16, 17 mounted for vertical adjustment on members 16a, 17a which are pivotable about a vertical axis so that the sides of the rollers face one or other side of the vehicle. The vehicle is steered by a dependent steering wheel by a driver seated or standing on platform P. When laying a pipeline a pipe is lowered on to rollers 16, 17 from the support bars, rolled backwards on roller 17 and connected to a water supply, a second pipe is lowered on to roller 16 and rolled into contact with and connected to the first pipe and the vehicle moved forward until the free end of the second pipe is on roller 17 and the operation with the second pipe repeated. In a development (Figs. 4, 5, not shown) the vehicle carries a rotary sprinkler bar 24 supplied with water by a pump driven by motor M and provided with a flexible pipe 26 connectible with the pipeline. In a modification racks with bayonet type connections are provided for fitting within and outside the frame.
Patent GB-176680-A (GB)
Title: Improvements relating to forks
IPC: A47G21/02
Filed: 1921-03-21
Abstract: 176,680. Stubbs, S. H. March 21, 1921. Spoons.-A fork a is provided with an aperture b adjacent the prongs a<1>, and a spoon-like or bowlshaped member c is secured within or adjacent the aperture. The member c may fit tightly or be soldered within the aperture, or may have flanges, as shown, secured to the edges of the aperture. The edges of the member may pass through the aperture to overlap and be secured to the edge thereof. Part of the side of the aperture may be cut away, the aperture and attached member need not be concentric with the fork, and more than one aperture and member may be provided.
Patent GB-315390-A (GB)
Title: Improvements in and relating to door fastenings particularly for delivery vans
IPC: E05C9/04
Filed: 1929-03-18
Abstract: 315,390. Niederdrenk, R., (trading as La Porte S÷hne, D.). July 14, 1928, [Convention date]. Multiple bolt fastenings for van &c, doors in which there is a main slam or latch lock a with spring-shot bolt b, combined with auxiliary latch bolts at the top and bottom of the door connected with the main latch mechanism bv rods c, d so that all bolts may be retracted simultaneously by operation of a spindle f by means of a square key &c., have the auxiliary bolts h, i connected with the rods c, d by pins u, t on the rods engaging slots r, s in the bolts. The bolts h, i, which are preferably of rectangular crosssection, are slidable into casings o, p which prevent external movement and are shot by springs v, w bearing at their outer ends against shoulders on the bolts and at their inner ends against crosspieces x, y secured to the respective casings and passing through the slots in the bolts. In shot position the pins u, t are at the inner ends of the slots. The bolts h, i can thus yield without movement of the rods c, d so that when the door is shut transmission of shock to the main-latch mechanism is avoided.
Patent GB-268548-A (GB)
Title: Improvements in hinges for gas retort doors
IPC: C10B25/08
Filed: 1926-03-31
Abstract: 268,548. Clark, R. G., and Pass, E. March 31, 1926. Hinges for gas retort doors are adjusted by means comprising an angularly adjustable hinge socket e with a clamping bolt e<1> that engages with socket f secured to or formed integral with the retort door, the socket e being forced against a serrated steel washer h on the member f when the nuts e<2> are tightened up. When the door falls or sags the nuts e<2> are loosened and the member e moved angularly, and then secured in this position. Instead of a washer h, teeth may be cut on the opposing faces of the members e, e<3>.
Patent GB-709112-A (GB)
Title: Improvements in and relating to wall construction and blocks therefor
IPC: E04B1/41
Filed: 1951-04-16
Abstract: 709,112. Walls; building blocks. ROSS, C. R. April 16, 1951 [April 17, 1950], No. 8857/51. Classes 20 (4) and 87 (1) A rectangular building block 10 of concrete, breeze, synthetic plastic material &c. has in its top and bottom surfaces a number of cylindrical cavities 20 which are located on the longitudinal mid-line of each surface and spaced apart a distance equal to the block thickness, the end cavities being positioned at half this distance from the adjacent edge. When the blocks are erected to form a single wall, Fig. 3, they are held in exact alignment by cylindrical pins 27 which fit into top and bottom cavities of blocks in adjacent courses. Double walls, Fig. 4, are constructed of blocks 10 which have depressions 24 extending from each hole 20 to one face of the block, strips 45 with end holes 46 which engage over pins 27 being used to tie the inner and outer walls together. As shown in Fig. 6, the wall tie may have its central part 49 widened and turned at right angles to provide lugs 53 and 54 which bear against the inner surfaces of the walls to hold them a set distance apart. Alternatively, Fig. 7, it may consist of two concrete end parts 61 and 62 of the same height as the block 10 and having dowel holes 63 and 64 so that they may be secured in each wall, the parts being connected by bars 68.
Patent GB-598914-A (GB)
Title: Methylpentadiene polymers and process for their production
IPC: C08F236/04
Filed: 1945-04-10
Abstract: High molecular weight solid linear polymers are produced by copolymerising a mixture of two or more methyl pentadienes-1.3 directly or in solution in an inert organic liquid with a Friedel-Crafts catalyst below 0 DEG  C., preferably below -50 DEG  C. Mixtures of 2-methyl-, 3-methyl-and 4-methyl-pentadienes may be used, the preferred mixture being obtained by dehydration of 2-methyl-2.4-pentandiol.  Copolymerisation may be carried out in the presence of inhibitors, e.g. tert. butyl catechol.  Inert organic liquids suitable are ethane, propane, the butanes, the pentanes, ethylene, propylene, the butylenes, the pentylenes, butadiene, isoprene, and methyl, ethyl and propyl chlorides.  The preferred catalysts are stannic and aluminium chlorides, and preferably they are used in solution in an inert solvent, e.g. methyl or ethyl chloride or 2.4-dimethylsulpholane.  The copolymers may be non-elastic, rubbery or tacky and may be compounded with modifying substances and also vulcanised. Suitable plasticisers are dibutyl and dioctyl phthalates, tricresyl phosphate, triacetin, tetralin, soft coal tar, coal tar oils, cumar resins, soft factice, wool grease, stearic and lauric acids and waxes.  Anti-oxidants, vulcanising agents and accelerators are listed.  Specified fillers include carbon black, e.g. hard channel black, silica, alumina, iron oxide, barytes, titanium dioxide, zinc oxide and lithopone.  The copolymers may be compounded with other synthetic and natural rubber-like materials and resins, cellulose derivatives and protein plastics.  Adhesive compositions are obtained by compounding the copolymers with one or more solvents and/or plasticisers; suitable solvents are hexane, pentane, isooctane, gasoline, high-aromatic petroleum fractions, cyclohexane, methylcyclohexane, chloroform, ethylene dichloride, trichlorethane, trichloroethylene, monochlorbenzene and toluene, dichlorpentanes, o-dichlorobenzene, 1.2.3-trichlorobutane, benzene, toluene, benzyl alcohol, phenyl ethyl alcohol, dibenzyl ether, phenyl ethyl ether, dioxane, dioxolane, methyl dioxolane, methyl cellosolve acetate, methyl, ethyl, isopropyl and butyl acetates, ethyl oxalate, ethyl acetoacetate, benzyl benzoate, acetone, methy ethyl ketone, diisopropyl ketone and methyl isobutyl ketone.  To increase viscosity the copolymers may be added to natural and synthetic lubricating oils, greases and waxes.  Specification 569,071 is referred to.
Patent GB-1456571-A (GB)
Title: Rotary screen printing apparatus
IPC: B41F15/42
Filed: 1974-02-27
Abstract: 1456571 Screen-printing machines FRITZ BUSER AG MASCHINENFABRIK 27 Feb 1974 [27 Feb 1973] 8923/74 Heading B6C A rotary screen printer, Fig. 1 comprises a blanket 1 supporting a workpiece to be printed and moving in synchronism with screen 2, and a squeegee holder 3 including a squeegee 7 mounted so that the holder can pivot in directions 9 or 10 about an axis parallel to, and at or closely adjacent and above the contact line 8 between the screen 2 and blanket 1; thus the angle α between the lower surface 11 of squeegee 7 and the tangent to the screen 2 can be altered without changing contact pressure or the position of the contact line. The blanket 1 and workpiece is pressed into contact with screen 2 by support 15 movable in U-shaped frame 16 under the influence of inflatable tube 17. The mounting for the squeegee holder 3 includes rotatable rings (40) and rocking levers (45, 46) pivotable about shafts (47) located near the contact line 8 and manually adjustable with the aid of spindles (49) and knurled heads (51), Figs. 2 and 4 (not shown).
Patent GB-694256-A (GB)
Title: Improvements in or relating to scissors and shears
IPC: B26B13/06
Filed: 1951-04-18
Abstract: 694,256. Scissors. HILLS, T. H. April 17, 1952 [April 18, 1951], No. 9017/51. [Class 30] In scissors for trimming off the corners of X-ray film, the blades are curved in a plane parallel to the axis about which the blades are pivoted and a guide is fastened to, or is formed as part of, the convex side of one of the blades to engage the edge or edges of the material to be cut. As shown, the blades 10, 11 pivot about a screw 12 and a guide 13 is provided on the blade 11 the inner positioning surfaces of which are tangential to the cut made in the film 14. The triangular space between the guide and the blade 11 is open below so that the cutoff portion of film may fall through or be pushed out by succeeding cut portions or by a member provided on the other blade.
Patent GB-614436-A (GB)
Title: Improvements in or relating to filing systems and the like
IPC: G06K21/02
Filed: 1946-03-25
Abstract: 614,436. Statistical apparatus. ALDA, L. F. March 25, 1946, No. 9106. Convention date, April 23, 1945. [Class 106 (i)] Cards, card holders, samples, &c. are provided with sets of pairs of teeth e arranged in stepped formation and adapted to be cut away so as to be selectively engageable by supporting means f operable to select a given card &c. The teeth are paired off symmetrically about the centre line of the card, so that two teeth are cut away to represent each digit or characteristic (e.g. 2, 6, 9 in Figure). Pairs of bars f are displaced according to the required characteristics so that, when the supporting bars d are moved clear, the selected card or cards are left unsupported and fall down. A sloping base or conveyer belt may be provided below to bring the selected cards to the front. Cards may be returned by re-engaging them with the bars d in front of the file. Protuberances on the cards space them from each other, allowing the selected cards to fall freely.
Patent GB-550869-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/10
Filed: 1941-07-19
Abstract: 550,869. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. July 19, 1941, No. 9148. Convention date, July 19, 1940. [Class 38 (ii)] A transformer for use in association with a commutator switch inverter for feeding a load such as a discharge lamp from a low voltage D.C. source such as a battery comprises a core 13 carrying primary and secondary windings 15, 16 between which is a magnetic shunt 18 comprising a saturable portion 17 in parallel with a portion containing an air gap 19. An air gap 21 is provided in the part of the magnetic circuit surrounding the secondary winding. Equivalent arrangements comprising shell-type cores are described with reference to Figs. 2 and 3 (not shown). The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 545,854, which is referred to. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specificcition 545,854.