baber/WOPTO huggingface dataset:
Patent GB-795850-A (GB)
Title: Improvements in or relating to the treatment of hides or skins
IPC: C14C1/06
Filed: 1956-10-22
Abstract: 795,850. Bating leather. ROHM & HAAS GES. Oct. 22, 1956 [Oct. 21, 1955], No. 32143/56. Addition to 776,323. Class 76. Green or soaked hides or skins which have been fleeced or dehaired by the application of enzymic material in the form of a powder as disclosed in the parent Specification are subsequently enzymically bated at a pH of 3-5. Proteolytic enzymes such as pancreatic tryptase, bacterial proteases, or preferably mould fungi tryptases may be employed. By bating at such an acid pH the creation of loose grain produced by proteolytic enzymes acting at an alkaline pH is avoided. The bating lasts from 6 to 36 hours and if necessary may be preceded by a weak enzymic bating at an alkaline pH. In addition to the proteolytic enzymes, mould fungi carbohydrases and/or lipases and advantageously one or more neutral salts such as sodium chloride, ammonium sulphate, or sodium tripolyphosphate may be present. Examples are given of the dehairing by enzymic means and subsequent enxymic bating of: (1) dry goatskins, (2) salted sheepskins, (3) salted calf skins, (4) dry goatskins.
Patent GB-1390649-A (GB)
Title: Process for the manufacture of dimethylmaleic anhydride and substituted dimethylmaleimide intermediates therefor
IPC: C07C51/56
Filed: 1972-07-10
Abstract: 1390649 Dimethylmaleic anhydride; dimethylmaleimide - heterocyclic compounds CIBA-GEIGY AG 10 July 1972 [13 July 1971] 32209/72 Heading C2C The invention comprises the compounds of formulae in which the (X+C=N-) ring is a 5- or 6- membered hetero-ring, which may be fused, substituted, and/or contain further heteroatoms, Y is an anion and n is 1-3; their preparation by heating at above 70 C. either (a) at least 1 mole of an amidine of formula with 2 moles of fumaric or maleic acid; or (b) at least 1 mole of an amidine salt of formula with 2 moles of maleic anhydride or fumaric or maleic acid; or (c) the maleic or fumaric acid salt of an amidine as above. Acid hydrolysis of the compounds of the invention gives dimethylmaleic anhydride:
Patent GB-812191-A (GB)
Title: Device for arresting the feed movements of machine tool parts
Inventor: LEFAN VOJTECH
IPC: B23Q5/34
Filed: 1955-11-11
Abstract: 812,191. Machine-tool details. ZAVODY PRESNEHO STROJIRENSTVI, GOTTWALDOV NARODNI PODNIK. Nov. 11, 1955, No. 32309/55. Addition to 789,900. Class 83 (3). [Also in Group XXIV] In a method for reducing the impact when a machine-tool-slide is stopped, the magneticpowder-clutch described in the parent Specification is replaced by a pneumatically or hydraulically-actuated friction-clutch. As shown, the oil supply to an hydraulically-actuated frictionclutch 6 on a drive shaft 2 for feeding a lathe tool-slide and cross-slide is reduced in pressure just before the feed is positively arrested, the feed continuing under the law engaging pressure until a stop is engaged and causes the clutch to slip. A casing 1 forming part of the tool-slide is fed longitudinally by a pinion 18 engaging a fixed rack 20, the pinion shaft being driven in one or other direction by a dog-clutch sleeve, coupling one or other of two loose bevel gears 12 to a shaft 11 geared to the clutch casing 6. A feed screw 23 for the cross-slide is driven through gears 13 and a second dog-clutch sleeve on the shaft 11. The space behind a piston 7 in the clutch 6 is connected to an oil chamber 26, which is normally maintained at a high pressure by a pump 25 and a relief valve 27, while a chamber 28 is maintained at a lower pressure by a relief valve 30. The chambers 26, 28 are connected by conduits 38, 40 to two spring-loaded valves 37. As the casing 1 approaches a fixed stop 42, a drum 41 on the valve 37 is depressed by the stop and the valve is opened, whereby the chambers 26, 28 are interconnected and the clutch-engaging pressure drops to the low value of chamber 28 before the casing 1 is brought to rest by the body of valve 37 striking the drum 41. The clutch-engaging pressure is similarly reduced when a stop 43 on the cross-slide approaches the casing 1. The hydraulic system may be replaced by a pneumatic system and may be applied to the feed of other machine-tool parts.
Patent GB-944354-A (GB)
Title: Permutation locker locks
Inventor: FOOTE DANIEL JOHN
IPC: E05B37/00
Filed: 1961-09-08
Abstract: 944,354. Combination locks. MASTER LOCK CO. Sept. 8, 1961, No. 32340/61. Heading E2A. A combination lock comprises a casing 30, lock bolt movement-controlling mechanism therewithin, tumbler discs operatively connected to the mechanism, a rotatable dial and knob 33, 34 operatively connected to the discs 63, through a clutch plate 47, one of the discs and clutch plate being formed with complementary means for selectively varying the clutchengagement between the two, an exteriorally accessible member for disengaging the clutch plate from the disc to permit rotation of the clutch plate through the dialling knob to alter the position of connection of the clutch plate with the disc for combination-changing purposes, and mechanism controlled by a keyoperated plug carried coaxially by the knob for controlling operation of the clutch plate disengaging means, the plug also extending to the lock bolt movement controlling mechanism. As shown, the invention is applied to a combination lock arrangement similar to that described in Specification 944,353 in which a key operated mechanism is mounted in the dialling knob of a combination lock arrangement, described in Specification 944,352, for moving a lock boltmoving mechanism independently of tumbler discs which are normally operated by the dialling knob to move the lock bolt-moving mechanism. In the present arrangement, the cam 68, carried at the outer end of plug extension 67, described in Specification 944,353, includes a push button portion 69 which extends through a rear wall of the lock casing. In the locked condition of the lock, inward movement of the cam is prevented by a lug 71 on a retaining plate 59, but when the cam 68 is turned by the key-operated plug 49 to unlock the lock, and the door is opened to give access to the push button 69 for changing the combination, the push button may be depressed whereby to move inwardly, guide pins 72 which are slidably mounted through registering openings in the tumbler discs and which engage a disc-driver plate 47. The latter is moved by the push button 69 from its position shown in Fig. 3 in which it is in driving engagement with the tumbler discs to the position shown in Fig. 5 in which an aperture 35 in the plate 47 is disengaged from the adjacent tumbler disc lug 76 and the tumbler discs are disengaged from one another. With the push button still depressed, the dialling knob 33 is turned to similarly turn the plate 47 to present another aperture 35 and the plate into near registration with the adjacent tumbler disc lug 76 after which the push button is released and the knob 33 partially turned to bring the plate aperture into accurate registration with the disc lug 76, whereby to place the numbers on the dial in a different relationship relative to the notches in the tumbler discs. The door may then be closed, the door handle 26 lowered to secure the latching bar 22 and the key turned back to its original position and withdrawn to return the cam 68 to its Fig. 3 position.
Patent GB-317680-A (GB)
Title: Improved safety razor
IPC: B26B21/16
Filed: 1928-11-06
Abstract: 317,680. M³ller, P., (trading as Mulcuto Werk, P. Muller & Co.). Nov. 0, 1928. Razors, safety.-A safety razor blade d of the one-edged hollow-ground type has grooves c, which may alternatively be T-shaped, formed in one of its sides to slide and fit closely upon projection a integral with the guard-plate. The position of the blade is adjustable by screws f and it is secured in position by a spring clamp e. The central teeth upon the guard plate are curved but at the two edges x are flat so that the ends of the cutting edge of the blade lie flatly thereon.
Patent GB-923469-A (GB)
Title: Improvements in or relating to moulding compositions
IPC: C08F279/02
Filed: 1961-09-08
Abstract: Moulding compositions are made by polymerizing a mixture of methyl methacrylate and one or more other ethylenic comonomers, the homopolymer of at least one of the comonomers having an index of refraction of at least 1,52, in the presence of a copolymer of butadiene and acrylonitrile having a butadiene content greater than 50% by weight, so that a composition is obtained having a methyl methacrylate content of at least 20% by weight, a comonomer content of not more than 50% by weight and a butadiene content of 5 to 25% by weight.  Monomers specified whose homopolymers have a refractive index of at least 1,52 are styrene, vinyl carbazole, phenyl, benzyl, o-cresyl and beta-chloroethyl methacrylates, acrylonitrile, N-vinyl pyrrolidone, N-vinyl phthalimide and vinyl pyridine.  Other comonomers specified are ethyl methacrylate, methyl and ethyl acrylates and vinyl acetate.  The polymerization of the monomers is preferably effected in a latex of the butadiene-acrylonitrile copolymer, although bulk methods may also be used.  Potassium persulphate is used as an initiator in aqueous systems.  In a modification of the process a part only of the monomers is polymerized in the presence of the butadiene copolymer, the remainder is separately polymerized and the two products are then blended.
Patent GB-1279848-A (GB)
Title: Double-bodied horizontal draught carburettor
IPC: F02M7/00
Filed: 1969-06-26
Abstract: 1279848 Spray carburetters INDUSTRIA NAZIONALE CARBURATORI DELL' ORTO SpA 26 June 1969 [26 June 1968] 32463/69 Heading F1B A carburetter comprises a single float chamber with a double float and a single positively opened and closed needle valve, a main jet supplying a centreing element, a Venturi and a main throttle valve in each of two main horizontal ducts, slowrunning jets each supplying fuel to a slow-running aperture and progression apertures in the respective duct, a single diaphragm accelerating pump supplying a jet in each duct and a starting jet supplying mixture through two intermediate ducts leading to the main mixture ducts downstream of the respective throttle valves. The main jet 4, Fig.2 (left hand part), receives fuel from the float chamber 1, the fuel being emulsified by air from bore 5 and emulsion holes 6 and delivered to element 7 where it is atomized by the incoming air to form a mixture passing through throttle member 9, Fig. 3, to the engine. A similar jet system delivers to the right hand duct. The slow running jet 10 is supplied with fuel from the chamber 1 and with emulsion air from calibrated bore 11, the emulsion being delivered to progression apertures 12, Fig. 3, and on adjustable slow-running aperture 13. Movement of the throttle valve spindle (15) Fig.4 (not shown) moves the diaphragm (23) of an accelerator pump through an adjustable lever system. The fuel reaches the accelerator pump through ball valve (24) and is pumped through ball valves 25, Fig.5 5 and jets 26 into the mixture ducts C, Fig.2. At full throttle operation additional fuel is supplied into fore-venturis (29), Fig. 6 (not shown). At starting fuel from starting jet (32), Fig. 4 (not shown) is emulsified with air from a calibrated bore 33, Fig. 5, when a valve (30), Fig. 7 (not shown) is opened, the fuel being mixed with air drawn through a gauze filter (31) and delivered through ducts (34) to ducts C. (For Figures see next page)
Patent GB-968608-A (GB)
Title: Apparatus for weight setting weighing devices
Inventor: MEYER JOHN FRANCIS ANTHONY
IPC: G01G1/26
Filed: 1961-09-11
Abstract: 968, 608. Automatically manipulated loose weight weighing apparatus. BAKER PERKINS Ltd. Nov. 20, 1962 [Sept. 11, 1961], No. 32473/61. Heading G1W. Relates to an apparatus for automatically setting or changing the setting of the weight loading particulars of continuous feed weighers wherein different combinations of individual weights having different values may concurrently be deposited or removed from a weigh beam, each individual weight being added or removed with a cyclic periodicity which is directly proportional to the weight value, by means of a pivotal lever, one for each weight, pivotal between a depositing and a removing position by a means operative at said periodicity. The desired loading may be set remotely by manually operated switches or by punched card means (not shown). As shown, Fig. 1, a weighbeam 1 has a transverse bar 2 to carry weights 5 comprising a binary system of seven weights from 1W to 64W units, giving a total of 128 settings. Weight lifting levers 4 (e.g.4rW which is associated with weight 51W) are raised and lowered by respectively associated cams 8(Fig. 4) on shaft 9. The cam 81W (associated with the lowest weight unit 51W) is rigidly attached to the shaft 9, while the other cams 8 are rotatably mounted thereon. Each cam 8 has attached rigidly a pair of gear-wheels 11, 12 which respectively engages gears 13, 14 on a shaft 15. As shaft 9 is driven, via an electromagnetic clutch by a motor 10, the cam 81W and its gears rotate thus driving a cam 82W which in turn drives a cam 84W and so on down the line of cams. As gears 12 are half the diameter of gears 13 and gears 14 and 11 are equal each cam 8 rotates at half the speed of its preceding cam. Detector means are provided comprising a micro switch 24 associated with each weight lever and disposed so as to be operated by a switch cam 26, rigidly attached to each associated weight cam 8 to rotate with it, whereby a switch is closed when its associated weight is transferred to the weigh beam. (Alternatively photo-electric means may be used instead of switches). A remote control device (not shown) is provided which can be pre-set or conditioned (e.g. by punched card) to represent any desired weight loading within the weighing range of the system. When pre-set the device starts the motor 10 which rotates the cam shaft 9 so that weight levers 4 are raised and lowered concurrently to load and unload the weigh beam until the pattern of'closed switches 24 matches the pre-set pattern of the remote control device. When the desired weights are on the beam a hold on cam 27 actuates a switch 27a which operates a hold on circuit to stop the motor. A motor reversing mechanism is also provided so that weights can be subtracted from a combination already on the beam. A warning device is provided to indicate incorrect weight setting. Specification 931,001 is referred to.
Patent GB-1111983-A (GB)
Title: A method of forming optically transparent,electrically conductive coatings
Inventor: KISER KENNETH MAYNARD
IPC: C23C14/56
Filed: 1965-07-29
Abstract: <PICT:1111983/C6-C7/1> A coating of indium oxide is formed on a substrate of e.g. plastics, glass or metals by vapour deposition or sputtering of indium in the presence of oxygen and allowing it to convert to or heating it either in the presence or absence of oxygen to form indium oxide.  The oxygen pressure Y during deposition is at least as great as the pressure given by the formula Y = 1.8 x 10-3X where X is the deposition rate of indium in angstroms per minute.  A plastics tape 11 is fed from a reel 26 to a driven reel 31 both mounted in a vacuum chamber 22, and while the tape passes through a box 44 to which oxygen is supplied through a pipe 46, it is exposed to a beam of indium which is evaporated through a slot in an electrically heated graphite cylinder 33, which is shielded from radiations by members of iron foil.  Alumina baffles 42, 43 prevent escape of indium.  A shutter 53 can be used to protect the tape from the indium beam.  The tape may be preheated at 28, and its electric resistance and transparency measured at 56, 58, respectively.
Patent GB-1502747-A (GB)
Title: Magnetic brush developer
IPC: G03G15/09
Filed: 1976-08-05
Abstract: 1502747 Powder supply for magnetic brush INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1976 [29 Sept 1975] 32598/76 Heading B2L A magnetic brush developer comprises a rotatable brush roll 14, a multi-flute supply auger 10 and a multi-flute return auger 11,  each of which is mounted with its axis parallel to that of the brush roll and has its ends in communication with a compartment 44 and a compartment 40 respectively, the supply auger 10 being rotatable so as to direct a developer mix from compartment 44 to compartment 40 and to direct it into contact with brush roll 14, and the return auger being rotatable to direct developer in direction 40 to 44, the speed of rotation and the pitch of the flutes being selectable so that carriers in the developer mix are presented to the brush more than once as they are fed from 44 to 40 and that flow of developer is substantially continuous. As shown, auger 10  has 4 flutes and auger 11 has 2; make-up toner is added to compartment 40; the flutes are right-hand and left-hand respectively and the augers rotate in the same sense. If turnround of powder in chambers 40 and 44 is not quick enough for uniform powder flow, extra transfer slots 48, 47 respectively may be provided.
Patent GB-347661-A (GB)
Title: Improvements in or relating to automatic lubrication
Inventor: ROYER GEORGES-GASTON
IPC: B61F17/24
Filed: 1929-10-26
Abstract: 347,661. Rotary pump for forced-feed lubrication. ROYER, G. G., 7, Impasse St.-Ouen, Paris. Oct. 26, 1929, No. 32605. Convention date, Oct. 27, 1928. Void [Published under Sect. 91 of the Acts]. [Class 110 (ii).] Fixed-abutment type.-The moving part 9 of a lubricant pump is directly driven by a rotary member, such as the axle 1 of a railway carriage wheel. A steady flow of oil from the lower space 33 to the upper space 33 is obtained by means of a rotary slide valve 31 which is moved frictionally by a rotating vase 10 over an angular range which is limited by a setscrew 40 protruding into a groove 39 on the valve periphery. Two of the ports 32 always act as inlet and delivery ports regardless of the direction of motion of the axle-shaft 1. The pump casing 5 is supported on the axle-shaft extension 4 and is retained in position by a ring 30 which bears in grooves in the member 4 and in the pump casing. A fork 41 prevents the suction pipe 35, and also the pump casing, from being rotated by the axle-shaft. A strainer 36 is fitted to the suction pipe.
Patent GB-729898-A (GB)
Title: Improved process for the recovery of wool wax from wool scour liquor froths
IPC: C11B11/00
Filed: 1953-11-24
Abstract: Wool wax is recovered from froth produced from wool scour liquor by treating the froth with one or more sodium or potassium phosphates as a dispersing agent and then separating the wool wax from the dispersion.  The pH of the dispersion may be adjusted, unless it is raised sufficiently by the phosphates, according to the nature of the detergent used in the wool scouring and according to the desired acid number of the wax, by adding also sodium carbonate or other alkaline material.  The froth may be produced by flotation processes.  The wool scour liquors may be liquors wherein the detergent comprises soap or a synthetic detergent, particularly a non-ionic detergent of the condensed ethylene oxide type, e.g. "Lissapol N" (R.T.M.), or an anionic detergent of the sulphated long chain alcohol type, e.g. "Teepol" (R.T.M.).  The phosphates specified comprise disodium hydrogen phosphate, sodium dihydrogen phosphate, tetrasodium pyrophosphate, and the sodium polyphosphate known as "Calgon" (R.T.M.).  The wool wax is preferably separated from the dispersion by centrifuging.  Various solutions of a phosphate and an alkali, particularly sodium carbonate, of specified proportions are exemplified to enable wool waxes of particular acid numbers, e.g. 0.5 or less or about 1, to be obtained, which acid numbers correspond to particular pH values of the solutions.  In some cases the alkali is not required.  For higher acid numbers the phosphate solutions may have their pH adjusted by adding sulphuric or phosphoric acid or sodium dihydrogen phosphate.  The froth, after addition of the phosphate solution and alkali solution if desired, may be heated before centrifuging.  A second centrifuging may be used to reduce the water content of the wax, preferably after cooling and reheating the wax.
Patent GB-990107-A (GB)
Title: Process for preparing organosilicon materials
IPC: C08G77/388
Filed: 1963-08-19
Abstract: A cured rubber is obtained spontaneously upon mixing (A) a hydroxy-terminated siloxane of the formula <FORM:0990107/C3/1> , (B) a silane of the formula R1bSi(ON=X)4-b in amount such that there is at least one ON=X radical per sibonded OH group in the siloxane, (C) a carboxylic acid anhydride of the formula AcOAc in amount such that there is at least 0.66 mol. of the anhydride per ON=X radical and (D) MgO in amount such that there is at least 0.33 mol. of MgO per ON=X radical in (B), in which components each X is a divalent radical of the formula <FORM:0990107/C3/2> in which R11 is a divalent hydrocarbon (h.c.) or halohydrocarbon radical, R is a saturated or unsaturated monovalent h.c. or halo-h.c. radical, R1 is H, R or a cyanoalkyl radical, a has an average value of from 1.9 to 2.1, b is 0 or 1 and Ac is a saturated aliphatic monoacyl radical derived from a carboxylic acid containing at lesat 2 C atoms.  Silanes (B) are described in the parent Specification.  Components (C) specified are isobutyric, acetic, hexoic, 2-ethylhexoic, octanoic, stearic and acetic butyric anhydrides. In modifications, an oxime-terminated di-organosiloxane is substituted (1) for silane (B), and (2) for components (A) and (B), but in these cases the reaction must be effected in the presence of moisture.  The reaction can be effected at elevated temperatures or, if desired, in the presence of condensation catalysts.  The compositions may also contain resinous siloxanes, plasticizing siloxanes, fillers and conventional additives.  Examples are given.
Patent GB-1534887-A (GB)
Title: Electrical component for circuit board mounting for example a resistor or capacitor
IPC: H05K3/34
Filed: 1976-08-05
Abstract: 1534887 Soldering RHEINISCH-WESTFALISCHE ISOLATOREN-WERKE GmbH 5 Aug 1976 [14 Aug 1975] 32707/76 Heading B3R [Also in Division H2] The circular cross-section wires 2 of an electrical component are pinched between a pair of rollers having pinching surfaces 6 of partcircular cross-section so as to facilitate firm seating of the wires in the holes of a circuit board prior to soldering. The widened surfaces (3<SP>11</SP>) (see Fig. 3b, not shown) of the wires are arranged to face one another if the component has two wires.
Patent GB-965323-A (GB)
Title: Rake tine bar pitch adjustment
Inventor: JOHNSTON EDWARD JAMES
IPC: A01D80/00
Filed: 1962-08-27
Abstract: 965,323. Side delivery rakes. INTERNATIONAL HARVESTER CO. Aug. 27, 1962, No. 32782/62. Heading A1F. A side delivery rake having two reels 13 interconnected by tine bars 16 is characterized in that the tine bars are secured to the reels by connectors 19, 40 arranged so that the bars are independently rotatable about their longitudinal axes and may be fixed in a selected position. The connector 19 comprises a socket portion 18 and incorporates a stop member 28 to limit the rotational movement of the bar. The connector 40 has an adjusting mechanism 50 which includes a squared end 61 for turning a worm which engages with a rack on the tine bar and also includes a bolt 68 fixed to the bar but movable in a slot in the connector, the bolt serving to lock the bar in a selected position after it has been turned by the worm.