baber/WOPTO huggingface dataset:
Patent GB-648533-A (GB)
Title: Angular contact ball bearings
IPC: F16C19/16
Filed: 1946-03-04
Abstract: 648,533. Angular contact ball bearings. FRENKEL, M. S. March 4, 1946, No. 6045/47. Divided out of 642,215, [Group XXVI]. [Class 12 (i)] In an angular contact ball bearing with grooved race rings the contours of each of the grooves in every plane containing the axis of the complete bearing are symmetrically shaped, each about an associated axis passing through the centre of a ball interposed between the two contours, these axes of the groove contours enclosing an angle of less than 180 degrees. The acute angle formed between these two axes of the groove contours must satisfy an equation involving the planetary radius R, the radius of the balls r, the contact angle α<SP>2</SP> of the bearing, and the dynamic radius of gyration factor of the balls. The curvatures of the grooves (in the plane containing the axis of the complete bearing) are to be such that the half contact lengths A<SP>2</SP> B<SP>2</SP>, A<SP>1</SP> B<SP>1</SP> arising by the elastic deformation under load are to be in the ratio of the peripheral lengths A<SP>2</SP> D<SP>2</SP>, A<SP>1</SP> D<SP>1</SP> which are cut off by lines drawn from the " axis " points A2, A<SP>1</SP> to the point O, the point O being where the axis O, O of the complete bearing is cut by a line C O drawn at right-angles to the axis A<SP>2</SP> C of the groove contour of the stationary race. The relation between the ball radius r, and planetary radius R must satisfy an equation involving the load, centrifugal force, the contact angle α<SP>2</SP>, and the dynamic radius of gyration factor of the balls. These conditions are stated to give the desired kinematic conditions and to avoid detrimental spins. To ensure that all balls take a share of the load the cage is fitted on its inner ring 19 with members 18, Fig. 2, slidable and rotatable on pins 17 which members 18 under centrifugal or spring action press against the balls at the end region of the axis on which they rotate.
Patent GB-525589-A (GB)
Title: Improvements in or relating to the supply of direct current electric arcs
IPC: H02M1/26
Filed: 1939-02-23
Abstract: 525,589. Arc supply systems; converting. PATENTVERWERTUNGS - GES. HERMES. Feb. 23, 1939, No. 6092. Convention date, Feb. 23, 1938. [Classes 38 (ii) and 38 (iv)] An electric converter apparatus for supplying current from a direct current network 1 of normal voltage to direct current arcs 15, comprises a three-phase converter 3 followed by moving contact converters 8 in series with switching choking coils 10, one for each arc. The three-phase converter 3 is driven by a direct current motor 2 maintained at constant speed by a speed regulating apparatus 6, 5 controlled by a tachometer 4. The moving contact converter 8 is arranged in " Graetz " connection and is operated by a synchronous motor 13. Resistances 12 are in parallel with the contacts 12, .and pre-magnetization windings 11 are provided on the choke coils and connected to a diverter resistance or like device 14 to control the voltage characteristic according to the requirements of the arc.
Patent GB-568894-A (GB)
Title: Improvements in or relating to processes of and apparatus for digesting fibrous material for use in the paper, board-making and associated industries
IPC: D21C3/22
Filed: 1943-04-16
Abstract: 568,894. Digesting straw, hay, &c. CELOTEX, Ltd., and ATKINSON, A. April 16, 1943, No. 6144. [Class 64 (i)] A process of digesting fibrous materials such as straw, hay, &c., comprises subjecting the material to treatment with a fibretreating reagent, e.g. caustic soda, in a closed space under the action of mechanical pressure, steam being injected into the compressed material for dispersing the reagent throughout same. The digester is preferably in the form of a vertical tube 10, 11 having an intermediate lateral inlet 12 for the material and an outlet 14 opening into a slightly inclined two-part tube 18, 22, the inlet 12 and outlet 14 being controlled by a power-operated piston 30 and plunger 24 respectively. The lower part 11 of the digester is provided with one or more longitudinally-adjustable injectors 36 for admission of the fibre-treating reagent from a pressure supply tank 46, a steam supply pipe 60, and retaining dogs 66 for preventing the fibrous mass from rising therein, while the tube 22 has a steam supply-pipe 74 and similar retaining dogs 72. The tube 22 is also fitted with a conveyer worm 86 and is associated with a pump 76 having inlet and outlet pipes 78, 80 connected to the tube for circulating fibretreating reagent through the latter. In operation, the tubes 11, 22 are filled, up to the heated by steam through the pipes 60, 74, line 82, with the reagent, and the latter then whereupon the piston 30 and plunger 24 are moved to the positions shown in Fig. 2 and the tube 11 filled with the fibrous material through the inlet 12. The piston 30 is then lowered to the position shown in dotted lines to close the inlet 12 and is retained in this position so that the fibrous material is maintained under slight mechanical pressure. The nozzles 36 are now forced into the material and the latter dosed with fresh-highly concentrated reagent from the tank 46, followed by steam, and after about 15 to 30 minutes the plunger 24 is first withdrawn to permit some of the fibrous material to fall and then returned to push said material into the tube 22 towards the outlet 84 of the latter. The piston 30 is now raised again to permit further material to be fed to the tube 11 and the above cycle of operations then repeated.
Patent GB-433962-A (GB)
Title: Improvements relating to veneer sheets
IPC: B27D1/00
Filed: 1934-02-26
Abstract: 433,962. Veneers. ELMENDORF, A., 211, East Chestnut Street, Chicago, U.S.A. Feb. 26, 1934, No. 6163. [Classes 145 (i) and 145 (ii)] Veneer is subjected to a pressure in excess of the crushing strength across the grain of the wood, and to a temperature above the boiling point of water but below that at which the wood scorches or tarry products are obtained ; for example, pressures of 900-1200 Ibs./sq. in, and a temperature of 140‹ C. may be used. The moisture content of the veneer is reduced before treatment to below the fibre saturation point-e.g. to 10-15 per cent of the oven dry weight-to prevent splitting or darkening of the veneer during treatment. The pressure is relieved and re-applied at intervals to allow escape of the moisture generated by the heat treatment. The pressure plates are polished and may be chromium plated ; the surface of the treated veneer takes on a high polish, so that sanding and varnishing may be dispensed with. By the treatment the pores of the wood are closed, so that no filler need be applied if the veneer is to be coated with varnish &c. ; further, adhesive does not penetrate through the veneer to cause staining. Veneers thinner than those usually employed and densified by this treatment can thus be employed, and are stated to lie flat on a surface without bulging. The veneer may be applied to a base by cold press glueing or by hot pressing with film or powder glue. The veneer may be coated with a layer of adhesive, such as rubber latex containing casein and a vulcanizing agent, which is allowed to dry; when the veneer is to be applied, the adhesive is softened by benzene or other rubber solvent. The body to be veneered may be similarly treated, or the adhesive may be applied when the veneering is performed.
Patent GB-416269-A (GB)
Title: Improvements in or relating to the packing of wallboard and the like and clips therefor
IPC: B65D67/02
Filed: 1934-02-26
Abstract: 416,269. Bundling wallboard etc.; clips. PARFITT, A. W., Stafford House, Norfolk Street, Strand, London.-(Gypsum, Lime, and Alabastine, Canada, Ltd.; Paris, Ontario, Canada.) Feb. 26, 1934, No. 6179. [Class 94 (i).] A clip for bundling stacks of wallboard &c. comprises a channelshaped body portion 1 with side walls 3 and angularly disposed end portions 2. The ends are embossed or corrugated at 4, the corrugations extending around the curve 5. The free ends 6 are bent inwardly to bite into the surface of the wallboard, and the walls 3 may be forced into penetrating engagement with the ends of the slabs.
Patent GB-983969-A (GB)
Title: Improvements in rotary cell-wheel volumetric measurers of variable capacity
Inventor: PICKUP HARRY
IPC: G01F3/36
Filed: 1963-02-15
Abstract: 983,969. Moulding part of volumetric measures. HENRY SIMON Ltd. Feb. 11, 1964 [Feb. 15, 1963], No. 6196/63. Heading B5A. [Also in Division B8] End plates 5 for a material dispensing rotor 2 (see Division B8), are moulded in situ from a cold-setting plastics material having a non- shrinking synthetic resin base, the plastics material being poured into moulds formed by the rotor, a cylindrical wall 10 and erosionresistant plates 13. The plates 13 are located on blocks 12 secured to the wall of the actual rotor housing or to a jig member as shown, the plates carrying inserts 14.
Patent GB-1048955-A (GB)
Title: Improvements relating to polyurethanes
IPC: C08L75/08
Filed: 1965-02-12
Abstract: Stable hydroxyl terminated urethane polymer gel dispersions adapted for use in the production of non-penetrating urethane polymer coatings are composed of a blend of (1) a dispersion of a hydroxyl-terminated urethane polymer gel of OH No. 30-40 and viscosity lower than D on the Gardner-Holdt scale at 20-25% non-volatiles, in a solvent free from active hydrogen containing groups and (2) a dispersion of a hydroxyl terminated urethane polymer gel of OH No. 30-40 and viscosity above H on the Gardner-Holdt scale at 20-25% non-volatiles, in a solvent free from active hydrogen-containing groups, the viscosity of the blend being within the range D to H.  The urethane polymer may be the reaction product of an organic polyisocyanate with a polyol of M.W. 750-3000 which is the condensation product of an alkylene oxide of 2-5 C with an organic trihydroxy compound. Alternatively the polyol may be a vegetable oil, e.g. castor oil. The blend may be prepared by first forming the two polyurethane components one having a viscosity lower than D, the other a viscosity above H, in the presence of a catalyst and then blending the two dispersions to obtain a dispersion of viscosity in the range D to H.
Patent GB-695090-A (GB)
Title: Labyrinth seal
IPC: F16J15/447
Filed: 1950-02-20
Abstract: 695,090. Stuffing-box substitutes: GARRETT CORPORATION Feb. 20, 1950 [Sept. ]7, 1949], No. 6268/52. Class 122(v) A labyrinth seal between a shaft 29 and its housing 17 is formed by a hub 31 carried by the shafts having circumferential surface grooves 103 defining lands 104 and a lining 102 of a material adapted when relative rotation occurs between the shaft and the housing to flow into the grooves 103. The internal diameter of the lining 102 is initially slightly less than the outside diameter of the lands 104 and on assembly the lining is forced axially over the lands which act as cutters to give a broached fit between the lining and the lands. On subsequent rotation of the shaft the material of the lining, which may contain lead, undergoes plastic deformation and bulges slightly into the grooves to form a labyrinth seal.
Patent GB-351450-A (GB)
Title: Combination slicing and wrapping machine
IPC: B26D7/27
Filed: 1930-02-25
Abstract: 351,450. Slicing bread. LITTLEFIELD, C., Merrill Park, Battle Creek, Michigan, U.S.A. Feb. 25, 1930, No. 6293. [Class 5 (i).] Bread is sliced and wrapped without relative displacement of the slices. The loaves 3, as shown in the Figure, are fed by a conveyer to a slicing device diagrammatically indicated at 4, the slices 8 being received on a table 5 betweer guides 6, 7, and fed on to a conveyer 9 for transfer to wrapping mechanism.
Patent GB-1293277-A (GB)
Title: Mixed esters of 2,2-dimethylpropane-1,3-diol and lubricant compositions
IPC: C10M169/00
Filed: 1970-02-10
Abstract: 1293277 Lubricants RUHRCHEMIE AG 10 Feb 1970 [12 March 1969] 6398/70 Heading C5F [Also in Division C2] Lubricants comprise at least one diester of 2,2-dimethyl-propane-1,3-diol in which one of the acyl groups is that of a straight chain monocarboxylic acid and the other that of a branched chain monocarboxylic acid, each acyl group containing 4 to 12 carbon atoms, specifically 2,2- dimethylpropane - 1,3 - diol 3,5,5 - trimethyl hexanate - pelargonate and 2,2 - dimethyl propane - 1,3 - diol 2<SP>1 </SP>- ethyl - hexanate - pelargonate alone or with other lubricants and conventional additives. Ester lubricants, mineral oils, organosilicon compounds, polyphenylether oils and phosphoric acid esters are mentioned.
Patent GB-636379-A (GB)
Title: Production of shaped optical elements
IPC: B29C35/08
Filed: 1948-03-01
Abstract: Shaped optical elements or preforms having an axis of reference such that the thickness of the element measured parallel to said axis at all points in the element at a given distance from said axis is substantially constant are made by subjecting a transparent photopolymerizable liquid monomeric compound possessing the group >C=C< in the molecule, or a liquid partial polymer derived therefrom to the polymerizing action of light in a mould of the desired shape until a solid body is formed, the average intensity of light falling upon the monomeric compound or partial polymer being such that Q/t is constant, Q being the average quantity of light falling per unit time per unit area, measured at right angles to the direction of the incident light, upon the monomeric compound or partial polymer, and t being the thickness of the material undergoing polymerization, measured in the direction of the incident light.  The light control is obtained by interposing between the mould a screen from which portions calculated mathematically in accordance with the above requirement have been cut or a suitable prepared photographic filter or a pigmented transparent screen.  The screen and/or the mould may be rotated.  The monomeric compounds specified are acrylic and methacrylic acids, methyl methacrylate, cyclohexyl methacrylate, 2,2,2-trifluoroethyl methacrylate, styrene, vinyl acetate, allyl methacrylate and diallyl fumarate.  Mixtures of two or more of the monomeric compounds may be used.  The composition preferably comprises a polymeric material of low molecular weight dissolved in the monomeric compound or compounds. The term "light" means all light from infra-red to ultra-violet. The photo-polymerization catalysts specified are glycollic aldehyde, benzoin, acetoin, butyroin, 3-hydroxy-4-methyl-pentanone-2, toluin, tert.-butylbenzoin, 12-hydroxy-13-ketotetracosane, o- and p-tert.-butyltoluin, benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, pivaloin ethyl ether, anisoin methyl ether, diacetyl, pentanedione-2,3; octanedione-2,3; 1-phenyl butanedione-1,2; benzil; 2,2-dimethyl-4-phenylbutanedione-3,4; glyoxal, phenyl-glyoxal, diphenyl triketone; 1,2-cyclohexanedione, alpha, alpha1-azodiisobutyronitrile, alpha, alpha1-azobis-(alpha-gamma-dimethylvaleronitrile); dimethyl and diethyl alpha, alpha1-azodiisobutyrates; alpha, alpha1-azo-bis-(alpha-methyl- or ethylbutyronitrile); and alpha, alpha1-azodiisobutyro-carbonamide.  The photopolymerization catalysts may be used in conjunction with a peroxide catalyst such as benzoyl, lauryl, acetyl, butyroyl, succinyl peroxides and ascaridole. Specification 636,283 is referred to.
Patent GB-433227-A (GB)
Title: Improvements relating to lamps
IPC: F21V3/02
Filed: 1934-03-01
Abstract: 433,227. Street &c. lamps. REVO ELECTRIC CO., Ltd., and REEVES, F. H., Groveland Road, Tividale, Tipton, Staffordshire. March 1, 1934, No. 6564. [Classes 75 (ii) and 75 (iv)] In a street, passage, or like lamp with a central body part a carrying a light source e, e.g. a gaseous discharge tube, and one or more reflectors b, a cylindrical, domed, or equivalent glass or like cover c is socketed into the lower part of the central body part and is maintained in position around the light source by rods d having hooked extremities d<1> engaging the lower edge of the cover and spring mountings d<2> associated with the central body part.
Patent GB-799923-A (GB)
Title: Gasoline
IPC: C10L1/10
Filed: 1956-03-02
Abstract: Gasoline compositions contain 0.1 to 2 per cent by weight of at least one additive of the general formula: <FORM:0799923/III/1> where x is 0 or 1, and R1, R2, R3 and R4 are hydrogen or aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon or heterocyclic radicals; with the provisos that, when x is 0 in both instances, R4 is not hydrogen or phenyl and R3 is a phenyl radical when R1 and R2 are phenyl radicals, and when x is 1 in both instances R1 and R2 are not hydrogen, and that the total number of carbon atoms does not exceed 36.  The additive may be a substituted hydrazine of formula: <FORM:0799923/III/2> a hydrazone of formula: <FORM:0799923/III/3> or an azine of formula:: <FORM:0799923/III/4> where R1, R2, R3 and R4 are as above. Lists of suitable hydrazines, hydrazones and azines are given.  In examples gasoline compositions contain unsymmetrical dimethyl hydrazine, triand tetra-methyl hydrazines, mono- and tetraisopropylhydrazines, unsymmetrical and N,N1-di-isopropylhydrazines, mono-, di- and triethylhydrazines, acetaldehyde cyclohexylhydrazones, acetone hydrazone, benzaldehyde 2-pyridylhydrazone, benzaldehyde dimethylhydrazone, acetaldehyde dimethylhydrazone, acetaldehyde azine, isobutyraldehyde azine, benzaldehyde azine, furfuralazine, and dimethylketazine.
Patent GB-1379982-A (GB)
Title: Antimicrobial acetanilides and compositions containing them
IPC: C07C233/00
Filed: 1972-02-11
Abstract: 1379982 2-Haloacetanilides SEIYAKU KK 11 Feb 1972 [16 Feb 1971 (2) 26 March 1971 (2) 16 June 1971 (2) 24 June 1971 (2)] 6603/72 Heading C2C Novel 2-haloacetanilides of the formula wherein R is H, C 1-4  alkyl or C 1-4  alkoxy, Y is O, S or NH and X is halogen, with the proviso that when X is Cl, R is other than H are prepared by the appropriate anilines with haloacetyl chlorides of the formula XCH 2 COCl. Pharmaceutical compositions suitable for topical administration, contain the above novel compounds in associateon with dermatologically acceptable carriers therefor. The compounds possess antimicrobial activity.
Patent GB-1126148-A (GB)
Title: Method for the preparation of stable acid addition salts of bis-(4-hydroxyphenyl)-(quinolyl-2)-methane
Inventor: SEEGER ERNST
IPC: C07D215/14
Filed: 1967-02-10
Abstract: 1,126,148. Salts of bis - (4 - hydroxyphenyl) - (quinolyl - 2) - methane. DR. KARL THOMAE G.m.b.H. 10 Feb., 1967, No. 6623/67. Heading C2C. Novel acid addition salts of bis-(4-hydroxyphenyl)-(quinolyl-2)-methane are obtained by treating this free base with an acid preferably in an inert organic liquid medium, e.g. a ketone or an alcohol. Salts specified are those of hydrochloric, hydrobromic, sulphuric, phosphoric and methane-, benzene- and p-toluenesulphonic acids. Pharmaceutical compositions having laxative activity contain as the active ingredient the above novel salts and are in the form of dosage units, e.g. pills, tablets, capsules, cachets and suppositories or in liquid form, e.g. syrups suspensions or elixirs. Administration is either orally or rectally.
Patent GB-177372-A (GB)
Title: Improvements in and relating to locking devices for doors and the like
IPC: E05C17/54
Filed: 1921-02-28
Abstract: 177,372. Martin, A. Feb. 28. 1921. Wedges.-A locking device for doors, windows, &c. comprises a wedgeshaped metal box a with hooks to receive a fixing screw b and a distance-piece a<2> between the side plates a'. The device may be connected to the door &c. by a link plate c hinged on the piece a<2> and secured to a channel plate d on the door by a pin e retained by a ring c<2> and a linch-pin g.
Patent GB-640208-A (GB)
Title: Improvements in and relating to bridles
IPC: B68B1/04
Filed: 1948-03-03
Abstract: 640,208. Bridles. HARRIOTT, H. G. March 3, 1948, No. 6677. [Class 62] A bitless bridle comprises a pair of L- shaped metal cheekpieces 5 mounted by loops 3, 4 on a lined nose-band 1, each cheekpiece being secured at its upper end to a curb strap 8 and a cheek strap 9 and at its lower end to the reins 11. A restraining strap 12 is provided between the curb strap and a throat strap 13. Additional control may be provided by the use of further straps which may be secured on each side of the nose band or to the central ring of each cheekpiece, the straps being crossed under the curb strap and passed through the head strap 10 and over the head behind the ears. In a modification the central ring of each cheekpiece may be D-shaped and secured to the nose band by a single loop.
Patent GB-871006-A (GB)
Title: Tufting machine and a method of making tufted fabrics
IPC: D05C15/36
Filed: 1959-02-26
Abstract: 871,006. Tufting-machines. McCUTCHEN, J. K. Feb. 26, 1959, No. 6677/59. Class 112 A method of producing tufted fabrics in which a pattern is formed by selectively producing cut or uncut loops of yarn formed in a base fabric comprises moving a looper to enter in succession loops thus formed and then carry them in the direction of fabric feed, severing in succession some of the loops held and moved by the looper and selectively blocking the movement of other loops so that loops so blocked are disengaged from the looper unsevered. In a machine for prosecuting the method a main drive shaft 25 causes the needle bar 31 to reciprocate in timed relationship with the oscillations of a shaft 39 carrying loopers 42 and a shaft 52 carrying loop cutters 56. The fabric base 36 is fed step by step to the right by means such as those described in U.S.A. Specification 2,411,267. A blocking finger 67 is disposed alongside each .looper, its end 71 being pressed against the opposite side of the looper to that at which the cutter 56 is disposed. Each finger is pivoted to the machine frame at 68 and spring biased in an anti-clockwise direction. The end of each finger remote from the looper is attached by flexible elements 75 to a floating connector block 76, six elements 76 being connected to each block. From each block a cable 77 passes to the end of a jack 80 of a number of dobby heads 81 such as are described in U.S.A. Specification 2,587,507. The dobby heads are driven from the shaft 25 and each includes a pattern chain 85 which selectively moves the jacks 80 between the two extreme positions shown. The needles 32 descend to insert loops of yarn into the fabric base and each looper moves to enter a loop and then move back in the direction of fabric feed. When a jack 80 is in the left position the end of the finger 67 lies below and clear of the looper beak as in Fig. 4, the loops then moving back along the beak to be cut by the cutter 56. When the pattern chain 85 causes the jack 80 to be in the left position the cables 77, 75 rock the finger 67 to bring its end up close to the looper beak as in Fig. 5. Loops then entered by the looper are blocked and pushed off the beak, as the looper moves in the direction of fabric feed, and are not cut. Instead of the dobby heads 81 the fingers 67 may be operated by cams, electronic controls, jaquard mechanisms or other pattern control means. U.S.A. Specification 2,143,678 also is referred to.
Patent GB-1254084-A (GB)
Title: Ammonia sensor
IPC: A61B5/145
Filed: 1970-02-12
Abstract: 1,254,084. Electro-chemical analysis. BECKMAN INSTRUMENTS Inc. Feb. 12, 1970 [March 3, 1969], No.6733/70. Heading G1N. An electro-chemical cell for measuring ammonia comprises a glass electrode 14 separated by an insulating sleeve 18 from an Ag/AgCl reference ring electrode 16; a surrounding insulating body 22 with an annular recess 26 for the electrolyte 48, and a covering of e.g. cellulose or filterpaper 32 retained by an outer ammonia permeable membrane held by an O-ring 28 clamped between the body 22 and a screwed cap 42. The outer membrane may be e.g. microporous polyvinylidene fluoride, or P.V. C.; polyethylene; P. T. F. E.; F. E. P or alternatively cellulose acetate "waterproofed" with e.g. dimethyl dichloro silane. The electrolyte is preferably 0À1M ammonium chloride with a little gelling agent.