baber/WOPTO huggingface dataset:
Patent GB-798166-A (GB)
Title: Improvements in and relating to derivatives of purine and the manufacture thereof
IPC: C07D473/30
Filed: 1955-06-08
Abstract: The invention comprises 1 - methylhypoxanthine and 1-methylthiohypoxanthine and the preparation thereof by reacting 4-amino-5-formamido-6 -hydroxy-pyrimidine with a methylating agent such as dimethyl sulphate, and cyclizing the resulting 1-methyl-4-amino-5-formamido-6-oxo-1,6 -dihydropyrimidine by refluxing in the presence of 8 to 100 per cent formic acid to form 1-methylhypoxanthine which may then be heated with phosphorus pentasulphide to form 1-methylthiohypoxanthine.  Two detailed examples are given.
Patent GB-1143351-A (GB)
Title: A process for the manufacture of foundry cores comprising silane-modified synthetic resin binders
IPC: B22C1/16
Filed: 1966-06-21
Abstract: 1,143,351. Casting moulds for metals. ASHLAND OIL & REFINING CO. 21 June, 1966 [26 June, 1965], No. 27644/66. Heading C3R. A binder for use in foundry moulds comprises an acid-hardenable furan-, phenol-, urea- or melamine-aldehyde resin or a mixture thereof and a silane R<SP>1</SP>-Si(OR 3 ), wherein R<SP>1</SP> is a C 1-6  alkyl radical containing a group capable of reaction with the resin and the groups R are each C 1-6  alkyl or C 1-6  alkoxy-C 1-6  alkyl radicals. The silane may amount to 0À1-3À0 wt. per cent of the resin, and the binder may amount to 0À5-3À0 wt. per cent of the aggregate with which it is mixed to give a foundry mix. In examples, the resins used are a phenolformaldehyde resin (1: 1À2 molar ratio, Mg(OH) 2  catalysed) and a furfuryl alcohol/urea/formaldehvde resin, the silane is NH 2 -(CH 2 ) 2 -NH-(CH 2 ) 3 -Si(OCH 3 ) or NH 2 -(CH 2 ) 3 -Si(OC 2 H 5 ) 3 , the aggregate is quartz sand, and the hardener is 60% aqueous p-toluenesulphonic acid or 75% H 3 PO 4 .
Patent GB-1506038-A (GB)
Title: Imprinting device
IPC: B41J2/245
Filed: 1975-07-02
Abstract: 1506038 Selective printing SOC D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE 2 July 1975 [25 July 1974] 27781/75 Heading B6F A printer comprises a print carriage 4 reciprocable on a rod 15, end plates 23, 24 of the carriage engaging springs 21, 22 respectively at the ends of travel of the carriage. The carriage carries a plurality of wire printing heads, and is driven by a heart-shaped cam 8 rotated about an axis O and engaging rollers 11, 12 on the carriage. A balancing mass 27 is reciprocated on a shaft parallel to shaft 15, in opposite phase to the carriage 4 to balance the momentum of the carriage 4. The printer can record while the carriage is moving in either direction.
Patent GB-631550-A (GB)
Title: Improvements in or relating to the production of cutting teeth of saws
IPC: B23D63/00
Filed: 1947-10-20
Abstract: 631,550. Saws. SANDVIKENS JERNVERKS AKTIEBOLAG. Oct. 20, 1947, No. 27979. Convention date, Oct. 23, 1946. [Class 145 (ii)] In a method of producing sawteeth, after stamping out the teeth are set and each toothat least in the part adjacent its point-is bent to the shape of a flat groove extending longitudinally of the tooth and with concave face outermost (see Fig. 4), that part of the tooth which lies outside a surface 5 substantially parallel with the plane of the saw blade and intersecting the convex inner face 4 of the teeth being then removed by grinding. The setting and grooving of the teeth, or the stamping, setting and grooving, may be performed in a single operation. An additional bending extending outwards and longitudinally of the teeth may be given the teeth when setting. In Fig. 2 is shown a tooth 1,. set, grooved and longitudinally bent, and a similarly treated tooth 2 after grinding along a plane 5, which plane is preferably slightly outwardly inclined in the direction of set, and intersects the inner convex face 4 of the teeth.
Patent GB-830390-A (GB)
Title: Improvements in and relating to furnaces for burning solid fuel
IPC: F23H15/00
Filed: 1958-09-01
Abstract: 830,390. Furnace grates; firebars. STAMICARBON N.V. Sept. 1, 1958 [Sept. 4, 1957], No: 28021/58. Class 51 (1). The bottom of a combustion chamber formed by vertical, finned water-cooled front and rear bars 4, 5 is closed by fixed spaced bars 11 extending over part of the chamber bottom, and bars 13 extending in opposite directions from a rotatable member 12 journalled in bearings in the bars 11. The bars 11 slope downwardly from the front of the chamber and the bars 13 lie between them and extend towards the rear of the chamber between projections 18. The bars 13 are rotated through 180 degrees to remove clinker which is broken by the projections 18. Air entering the space between a thermostatically-controlled inlet flap 19 and the front grate 4 serves for primary combustion, and secondary air leaves this space through passages 21 controlled by damper 23 and passes to the ashpit 14 and the secondary combustion chamber 10 behind the rear grate 5.
Patent GB-1441060-A (GB)
Title: Apparatus for reducing material to chips
IPC: B27L11/02
Filed: 1974-06-25
Abstract: 1441060 Wood-chipping machine MORBARK INDUSTRIES Inc 25 June 1974 [6 July 1973] 28059/74 Heading B5L Apparatus for reducing material such as trees, branches, brush &c. to chips comprises a frame F, a rotary shaft 22 mounted longitudinally on said frame, a chipper disc 32 fixed to the shaft the disc having a single radially extending through slot 36 and a radially extending knife blade 40 mounted adjacent said slot at an angle to the plane of the disc 32, a feed assembly 54 including a longitudinally extending feed bed and a feed roll 66 for feeding material to the chipper disc, and reversible drive means arranged to drive the feed roll at a feed rate which is proportional to the rotary speed of the chipper disc and is related to the rate of which the angled blade of the chipper disc can reduce material to chips. Fan blades 28 attached to the rear of the disc 32 and to the shaft 22 seve to blow the chips into a discharge shoot 20. A wall member 89 between two of the fan blades 28 serves to balance the chipper disc dynamically. The feed roll 66 is mounted to pivot about an axis b of a shaft 58 disposed to one side of the feed bed and is weighted downwardly against the feed material B by weights 82. A diesel engine 50 powers the drive to the chipper disc and to an hydraulic pump and motor circuit for the feed roll drive. The whole apparatus is preferably mounted on wheels 10.
Patent GB-203560-A (GB)
Title: Improvements in roller bearings
IPC: F16C33/54
Filed: 1922-10-16
Abstract: 203,560. Aldridge, L. S. Oct. 16, 1922. Roller bearings.-A bearing for a wheel axle 6 comprises rollers 25 between a sleeve 10 and the axle. The roller cage 13 consists of end rings 21 connected by bars 22, and the rollers are supported only between the middle parts 24 of the bars 22 so that they are free to rock at the ends. The sleeve 10 is locked in position by a ring 17 screwed on a nut 18 and having recesses to engage the end. of a screw 19.
Patent GB-708719-A (GB)
Title: Improvements in and relating to screening
Inventor: STEPHEN ALEXANDER MCLEOD MCADI
IPC: B07B1/54
Filed: 1950-11-17
Abstract: In an arrangement for keeping the meshes of screens free, each screen deck is provided with a number of compartments on the underside by means of suitably disposed metal members, preferably made of stainless steel, and an auxiliary sheet of coarser mesh than the screen, underneath the screen and spaced therefrom.  At least one detached metal coil spring, preferably of spherical shape, but alternatively spheroidal, ellipsoidal, or paraboloidal, is provided in each compartment and due to the movement of the screen the springs impinge against the screen and keep the cloth clean.  Instead of a coil spring other hollow, resilient bodies of similar configuration may be used, e.g. bodies formed from spherical shells of metal by removing portions of the shell and leaving a resilient residue such as a continuous spiral strip of metal.  Alternatively hollow resilient bodies may be made by joining suitably shaped metallic elements.  The hollow bodies are preferably of metal but under suitable screening conditions may be made of synthetic resin or the like.
Patent GB-1044996-A (GB)
Title: Improvements in stone surfacing tools
IPC: B28D1/26
Filed: 1964-07-08
Abstract: 1,044,996. Percussive tools. H. A. COSSON. June 17, 1965 [July 8, 1964], No. 28157/64. Heading B4C.  A stand for a pneumatic stone-surfacing tool such as a tool for working on kerb stones, comprises a strut 10 connected, at one end, by gripping means 11, 12 to the tool and at the other end, to a heavy base 8, a pair of handles 13 being provided for holding the tool. The strut 7 may be of U-sectioned mild steel and welded to a backing plate 14 to which is attached the base 8; the base may be square, rectangular or round in plan and have a semicylindrical, spherical or stepped surface in contact with the surface to be worked on. The gripping means is in the form of U-shaped straps around the tool and being connected to a plate 9 welded to the strut; hard rubber pads 12A are clamped between the straps and the tool. A shield of rubber may be clamped between the plate 9 and the tool and extend nearly to the bottom of latter in order to protect the operator from flying chips of stone.
Patent GB-1324669-A (GB)
Title: Warning device for a respiratory apparatus
IPC: A61M16/00
Filed: 1972-06-15
Abstract: 1324669 Respiratory appliances DRAGERWERK AG 15 June 1972 [15 June 1971] 28176/72 Addition to 1264085 Heading AST [Also in Divisions Gl and G3]  A duct 20 supplying oxygen to a respiratory apparatus is connected to a valve 4 which opens if the pressure falls below a predetermined value to allow oxygen from a duct 21 to flow to a whistle 15 and to a chamber 16 through a restrictor 14 in a valve 12 to close the latter by acting on a control means 22, 23 when the chamber pressure has risen sufficiently. Further escape of oxygen is thus prevented. The duct 21 is supplied through a pressure reducer from the duct 20. On putting the apparatus into operation, a small quantity of oxygen, escapes through the whistle before the valve 12 closes. Diaphragms or a stepped plunger may be used as the control means 22, 23.
Patent GB-1088634-A (GB)
Title: Alkali soluble polymers
Inventor: WARSON HENRY
IPC: C09D131/02
Filed: 1963-07-17
Abstract: An alkali-soluble copolymer comprises a terpolymer of a vinyl ester of a saturated carboxylic acid, an ester of an unsaturated dicarboxylic acid and at least 3% (based on the total esters) of acrylic acid.  The vinyl ester may be vinyl acetate and the other ester may be dibutyl maleate or fumarate.  The terpolymer may be produced by emulsion polymerizing the monomers at a pH of less than 7 (preferably greater than 3) an aqueous mixture of the monomers, dextrin, sodium dodecyl benzene sulphonate, potassium persulphate and potassium bicarbonate; the monomers being added in increments to the reactor.  The above emulsion may be turned into a solution, by addition of ammonia, which may be used to form films.ALSO:Paper is impregnated with an aqueous solution of an alkali-soluble copolymer comprising a terpolymer of a vinyl ester of a saturated carboxylic acid, an ester of an unsaturated dicarboxylic acid and at least 3% (based on the total esters) of acrylic acid.ALSO:Paper and textiles are coated with a composition which comprises an aqueous solution of an alkali, e.g. ammonia, and an alkali-soluble copolymer comprising a terpolymer of a vinyl ester of a saturated carboxylic acid, an ester of an unsaturated dicarboxylic acid and at least 3% (based on the total esters) of acrylic acid.
Patent GB-483481-A (GB)
Title: Manufacture of condensation products and aqueous solutions thereof and their application in tanning
IPC: C14C3/22
Filed: 1936-10-12
Abstract: Water-soluble products containing a sulphomethyl group are obtained from the condensation products of natural resins with aromatic compounds containing a phenolic hydroxy group by reacting these products with formaldehyde and sulphurous acid or a salt thereof. Specified natural resins are varieties of colophony, e.g. common resin, gum resin and root resin, and also sulphate cellulose resin (talloel).  Specified phenolic compounds are phenol, cresol, resorcinol, salicylic acid, cresotinic acid, naphthol, dihydroxydiphenyl sulphone, dihydroxydiphenylmethane, and mixtures containing such compounds, e.g. crude cresol or creosote oil.  Other hydroxy compounds, or compounds containing an amino group, may be added before or during the condensation of the natural resin with the phenolic compound, specified additions of this kind being urea, aniline, lignin and phenol resins.  The products are useful as tanning agents, alone or with other tanning agents; they yield foaming aqueous solutions, even in the presence of acid or alkali, and are useful also as textile assistants.  In the examples: (1) colophony and phenol are heated in the presence of sulphuric acid, and the mixture is treated with sodium sulphite and formaldehyde solution; the tanning of calf skin with an acidified solution of the product is mentioned; (2) crude cresol and colophony are heated in the presence of phosphoric acid, and the mixture is treated with a solution of sodium sulphite and formaldehyde; the tanning of cow hide with an acidified solution of the product is mentioned; (3) colophony and cresol are heated with the addition of sulphuric acid and a residue from the saccharification of pine wood with hydrochloric acid, and the mixture is further heated after addition of sodium sulphite and formaldehyde solution; the tanning of calf skin with an acidified solution of the product is mentioned.  The Specification as open to inspection under Sect. 91 includes a further example in which colophony and crude cresol are heated in the presence of sulphuric acid, and the mixture is treated with sodium sulphite and formaldehyde; an acidified solution of the product may be used for tanning or for imparting a non-slip finish to rayon fabrics. Reference is made also to the isolation of the products of any of the examples above in the form of free acids by acidifying the aqueous solutions of the products and salting-out, and also to the isolation of the corresponding alkali salts by salting-out.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1517944-A (GB)
Title: Method and device for moulding sanitary articles such as washbasins
IPC: B28B1/26
Filed: 1975-07-04
Abstract: 1517944 Slip casting a washbasin SOC GENERALE DE FONDERIE 4 July 1975 [27 Aug 1974] 28405/75 Heading B5A A washbasin is slip-moulded between clamped together upper male and lower female half shells 56, 61 (Fig. 17), while the female is located by a supporting frame 12 at an inclination to the horizontal. The mould cavity is filled completely with slip through a channel 36 in the male shell 56, and excess slip removed through at least one drain hole 26 in the female shell. The tap, overflow and plug holes are pierced before the washbasin is lifted out, shrinkage having produced a clearance from the mould. In the embodiment of Fig. 17 the female shell 61 is supported by tubes 62, 64 on a wooden frame 12, and the male shell is pivoted by hinges 57 engaging a peripheral hoop 66. The shells are held together by pivoted clamps 65 having camming surfaces 68. Air vents are provided in the plaster mould. In a second embodiment (Fig. 4), the male shell 2 is pivoted against a support 18 to rest against uprights 19 when the mould is open, and to be clamped to the female shell 3 for moulding by two pivoted tie bars 5. The support 18 can be duplicated in mirror image for supporting a second mould. The slip comprises a mixture of clay, kaolin, silica and feldspar suspended in water.
Patent GB-437480-A (GB)
Title: Brake mechanism for rail vehicles
IPC: B61H7/02
Filed: 1934-10-04
Abstract: 437,480. Skid brakes. HUGUENIN, A., 319, Hardstrasse, Z³rich, Switzerland. Oct. 4, 1934, No. 28431. Convention date, Oct. 12, 1933. [Class 103 (i)] Railway brake blocks 3 engaging rails 9 are connected, by a common pivot 31, to thrust rods 5 pivoted to the axle 7 and to tension rods 15 which are connected by a pivot 14 operated by a bell-crank 11, the pivot 14 moving along a substantially straight path. The distance between the axes 3<1> is greater than the diameter of the wheel. The rods 5, 15 are connected by transverse struts 6, 16 respectively. Rods 8 also support the blocks 3. Return springs 17 are provided. In view of the fact that the angle between rods 5, 15 is small the forcing of the blocks against the rails is effected with a comparatively small force and the movement of the pin 14 is small. A large amount of travel is provided for the brake blocks to ensure simultaneous engagement of the blocks on a long train. An arrangement on a bogie with two axles is described in which the brake blocks are arranged symmetrically with regard to the king pin of the bogie. The brake may be operated by compressed air, vacuum or by hand.
Patent GB-263762-A (GB)
Title: Improvements in or relating to fuel injecting apparatus for internal combustion engines
IPC: F02M65/00
Filed: 1926-11-11
Abstract: 263,762. Sulzer FrÞres Soc. Anon. Dec. 26, 1925, [Convention date]. Cylinders receiving liquid fuel. - Water, steam or air is sprayed across the fuel nozzle f by a pump l to prevent drops of fuel from adhering to the nozzle which projects through an aperture in a flexible plate which acts as a non-return valve and is carried by the screwcap o. The water &c. is forced through the annular space, which is formed when the plate deflects, across the fuel orifices h.
Patent GB-895046-A (GB)
Title: Sprag and retainer assembly for one-way clutches
IPC: F16D41/07
Filed: 1958-09-04
Abstract: 895,046. Ratchet clutches. FORMSPRAG CO. Sept. 4, 1958 [Oct. 22, 1957], No. 28467/58. Class 80 (2). A one-way sprag clutch comprises sprags C carried in pockets formed by cross-bars A<SP>2</SP> of a U-shaped retainer A which acts as a bearing between inner and outer races B<SP>1</SP>, B, the opposite faces A<SP>3</SP>, A<SP>4</SP> of which pockets are inclined to a radial line and the sprags are cut away at C<SP>4</SP> to permit limited tilting of the sprags C without moving the retainer. Garter springs D, D<SP>1</SP> in recesses C<SP>3</SP> in the sides of the sprags energize them for clutch engagement, and the end A<SP>7</SP> of the cross-bars A<SP>2</SP> are cut away to provide clearance for the garter springs. The retainer A may be formed as a die casting in which case the pockets are open alternately at opposite ends (Fig. 2, not shown), to permit withdrawal of the dies.
Patent GB-1175914-A (GB)
Title: A Process for Enriching Milk with Proteins
IPC: A23C9/148
Filed: 1967-06-21
Abstract: 1,175,914. Protein enriched milk. PHARMACIA FINE CHEMICALS A.B. 21 June, 1967 [22 June, 1966], No. 28536/67. Heading A2B. Skim milk, which may be partially evaporated, is separated into a first fraction containing the proteins and 10-90 per cent wt. of the low molecular weight constituents, and a second essentially protein free fraction containing and the balance of the constituents by means of differential adsorption on a gel, gel filtration such as a copolymer of dextron and epichlorohydron or of an alkylidene-bis-acrylamide with an ethylenically unsaturated substance, and the protein-containing fraction is then mixed with whole and/or skim milk, the said fraction and/or the mixture being subjected to evaporation. The water recovered from the evaporation may be employed for elution of the gel, which gel may be regenerated by means of a sodium hydroxide solution.
Patent GB-1191658-A (GB)
Title: Novel Phosphonates
IPC: C07F9/40
Filed: 1967-06-21
Abstract: 1,191,658. Pesticides containing phosphonates. FMC CORP. 21 June, .1967 [22 June, 1966; 21 March, 1967; 12 April, 1967], No. 28539/67. Heading A5E. (!Also in Division C2] Pesticidal 'compositions comprise a chrysanthamumate. and, in synergistic proportions therewith, a 'phosphate of general formula: where R 1  is C 1-20  alkyl, alkenyl or alkoxyalkyl, R 2  is C 1-6  alkylene, X is oxygen or sulphur, R is hydrogen or methyl, n is 0 to 3, Ar is an aromatic radical, Y is halogen and m is 0 to 2. The compositions may be formulated as sprays, dusts, wettable powders, emulsifiable concentnates, solutions, granules and .baits with conventional solids andi liquid carriers.
Patent GB-152290-A (GB)
Title: An improved head for stands
IPC: F16M11/14
Filed: 1920-10-08
Abstract: 152,290. Mayer, E. Aug. 13, 1919, [Convention date]. Levelling-heads. - An adjustable stand-head for supporting photographic apparatus, measuring instruments, &c. comprises a spherical cup which is rotatable and fixed between the spherical surface of two clamping members, the relative motion of which is rectilinear and co-axial only. The support u for the instrument is shown as an extension of the spherical cup m which may swivel and rotate between the spherical dome piece o and the segment n, the segment being adapted to be moved co-axially relative to the dome piece o by rotating a plate a screwing into the dome piece o which is rigidly connected to the base-plate h. Guidestuds t fixed in the base-plate h, engage in holes in the segment n to prevent its rotation.
Patent GB-1497260-A (GB)
Title: Guanidine derivatives
IPC: C07D213/65
Filed: 1974-06-28
Abstract: 1497260 Guanidines SMITH KLINE & FRENCH LABORATORIES Ltd 25 June 1975 [28 June 1974] 28722/74 Heading C2C Novel compounds of Formula I wherein R 1  represents a grouping of the structure shown in Formula II wherein Het is an imidazole, pyridine, thiazole, isothiazole, oxazole, isoxazole, triazole or thiadiazole ring, which is optionally substituted by lower alkyl, hydroxyl, chlorine, bromine or amino; Z is sulphur or a methylene group; m is 0, 1 or 2 and n is 2 or 3 provided that the sum of m and n is 3 or 4; R 2  is hydrogen, lower alkyl or a grouping of the structure shown in Formula II wherein Het, m, n and Z are as defined above; X is oxygen or NH; and R 3  is hydrogen, lower alkyl, aryl or arylalkyl where lower denotes groups containing up to 4 carbon atoms are prepared by reaction of a compound of Formula III first with an alkyl halide and then with a compound of formula R 3 XNH 2 . Pharmaceutical compositions in conventional forms for oral, topical and parenteral administration having histamine H 2 -antagonistic and antiinflammatory activity comprise an above novel compound and a carrier or diluent.