baber/WOPTO huggingface dataset:
Patent GB-146178-A (GB)
Title: Improvements in detachable disk wheels
IPC: B60B3/04
Filed: 1920-06-25
Abstract: 146,178. Compagnie d'Applications Mecaniques, (Assignees of Soc. Franþaise des Roues Amovibles). April 14, 1916, [Convention date]. Addition to 146,177. Disk wheels of the type described in the parent Specification consist of a single metal plate a which increases in thickness inwardly to the part a<3> on which the conical seating for the driving plate is formed. The central part of the wheel is of uniform thickness equal to the maximum and comprises a flat portion a<4> in which the driving holes are provided and a cylindrical and conical seating as, a<6>.
Patent GB-1211798-A (GB)
Title: Swaged contact strip
IPC: H01R12/72
Filed: 1968-04-10
Abstract: 1,211,798. Making printed circuit board contacts. ELCO CORP. 10 April, 1968 [13 April, 1967], No. 17373/68. Heading B3A. [Also in Division H2] A method of progressively forming the nose section of a contact for a printed circuit board from a metal strip 10 comprises, feeding a strip to a piercing station, piercing a U-shaped hole in the strip adjacent an edge thereof, to form a first cantilevered lug 60 directed towards the edge, feeding the strip to a swaging station, and simultaneously piercing the strip at the piercing station and swaging the lug to reduce its thickness and increase its width. The contacts are made from a strip 50, preferably of phosphor-bronze, wherein the thickness of the part 53, which forms a bar 11, is greater than that of part 51, a step 55 in the top surface of the strip indicating the demarcation between the two. Preferably the thickness of part 51 is reduced by milling. When an end 55 of the strip is fed to the forming die, a pilot hole 56 is first punched. At station A holes 57, 58, 59 are punched and the formation of the lug 60 is completed at station B. The lug is next reduced in thickness by swaging, except along its edges 62, then successively four grooves (66), Fig. 7 (not shown), are coined on its upper surface, it is slotted at 29 and trimmed to width at stations C to F respectively. At station F a notch 30<SP>1</SP> is also formed. The slotted lug is bent into a wiping finger 21 at station G and at the next station a hole 68 is punched to define a cantilever ear 69. At station I the wiping finger is bent out of the plane of the strip along a bend line 27, the notch 30<SP>1</SP> facilitating making the bend. Finally at station J a tail section 15 of the contact is formed and at station K vertical webs 72, 64 are removed. The operations performed at stations D and F may be transposed and individual contacts may be made by blanking the formed contacts from a strip of uniform thickness. The contacts are mounted in an insulated casing (31) provided with holes (33) for receiving the tail sections 15, Fig. 1 (not shown), to form connectors into which printed circuit boards are plugged. A number of connectors are mounted side-by-side in alignment on a metal plate (42) so that they are interconnected by the bar 11.
Patent GB-631619-A (GB)
Title: A process for the manufacture of organo-silicon compounds
IPC: C07F7/18
Filed: 1947-07-01
Abstract: Organo-silicon compounds of the general formula R3Si(CH2SiR2)mY, wherein Y represents an alkoxy radical or halogen, m is a positive integer and the R's are the same or different and are each a phenyl or alkyl radical, are prepared by reacting an alkali metal with a compound of the formula XCH2SiR2Y in admixture with a compound of the formula R3Si(CH2SiR2)nY1, wherein X represents a halogen, Y1 is a halogen, n is zero or a positive integer and R and Y have the above significance.  The alkali metal may be suspended in a hydrocarbon boiling above the melting point of the alkali metal.  The halogen is preferably chlorine or bromine, while the alkoxy radical is preferably ethoxy.  In examples, compounds of the following formul are prepared:-(CH3)3SiCH2Si(CH3) 2OC2H5 (CH3)3SiCH2Si(CH3)2CH2Si(CH 3)2OC2H5, (CH3)3SiCH2Si(CH3)2Cl, (CH3)3SiCH2Si(CH3)2CH2Si (CH3)2Cl, (CH3)3Si[CH2Si(CH3)2]3OC2\t H5, C6H5(CH3)2SiCH2Si(CH3) 2OC2H5, C6H5(CH3)2SiCH2SiCH3 (C6H5)OC2H5, and (CH3)2.C6H5.SiCH2SiCH3 (n p C4H9)OC2H3.  The products of the invention may be reacted with a Grignard reagent to substitute a hydrocarbon radical, e.g. methyl, or octadecyl, for the residual halogen or alkoxy radical.  Compounds of the formula (CH3)3SiCH2Si(CH3) 2Cl and (CH3)3SiCH2Si(CH3)2CH2 Si(CH3)2Cl are prepared by treating the corresponding ethoxy compounds with acetyl chloride.
Patent GB-672162-A (GB)
Title: Improvements in and relating to organo-silicon compounds
IPC: C07F7/18
Filed: 1950-07-12
Abstract: Polysiloxanes are obtained by treating organo silicon compounds of the formula RnSi(OCH2CH2OR1)4-n, wherein R is a monovalent hydrocarbon radical, R1 is the methyl or ethyl radical and n is 1, 2 or 3, with a base or acid, e.g. sodium or potassium hydroxide or hydrochloric or sulphuric acid, or with carbon dioxide.ALSO:The invention comprises organo silicon compounds of the general formula RnSi(OCH2CH2OR1)4-n, wherein R is a monovalent hydrocarbon radical, R1 is a methyl or ethyl group and n is 1, 2 or 3, and a process for the preparation of the above compounds by heating the compounds RnSiX4-n and HOCH2CH2OR1, wherein R, R1 and n have the above significance and X is a halogen, and aqueous solutions of the above compounds.  A list of hydrocarbon groups which R can represent includes alkyl, aryl, aralkyl, cycloaliphatic and unsaturated aliphatic hydrocarbon groups.  In the examples, compounds of the above formula are prepared by reacting 2-methoxy-ethanol with methyltrichloro-, dimethyldichloro-, trimethylchloro-, methylbenzyldichloro-, methyl - 2 - pentyl - 1 - dichloro-and phenyltrichloro-silane, and by reacting 2 - ethoxy - ethanol and dimethyldichlorosilane.  The compound Si(OCH2CH2 OCH3)4 is mentioned.
Patent GB-1116052-A (GB)
Title: Improvements in and relating to the analysis of molten materials
Inventor: WILLIAMS ROYSON VAUGHAN
IPC: G01N33/20
Filed: 1966-04-21
Abstract: 1,116,052. Analysing molten material. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 21 April, 1967 [21 April, 1966], No. 17505/66. Heading B1X. [Also in Divisions G2 and H1] Apparatus for analysing molten material I e.g. molten metal comprises a conduit 3, means 4 for feeding a gas under pressure adjacent the conduit end to detach particles of the material and drive them along the conduit to an analysis device 5. The conduit may be water-cooled, and an intermediate store for the particles may be provided. The analysis may be effected by entraining the particles in a plasma jet arc, (see Division H1) and recording the spectra so produced.
Patent GB-671195-A (GB)
Title: Objective mounting for microscopes
IPC: G02B21/02
Filed: 1950-07-13
Abstract: 671,195. Lens mounts. ZEISS-OPTON OPTISCHE WERKE OBERKOCHEN GES. July 13, 1950 [July 15, 1949], No. 17567/50. Class 97 (i). An objective mount for microscopes consists of two telescoping tubes, one of which carries the lenses and the other of which is adapted for attachment to the microscope body, and a spring and locking means are arranged between external flanges on the tubes so that the spring normally holds the lens - carrying tube in the operating position while the locking means is adapted to hold the lens-carrying tube in a safety position above the operating position against the action of said spring. As shown, the mount comprises telescoping tubes 1 and 2 of which the tube 1 carries the microscope objective and has a shoulder 5 normally engaged by a cap 4 which threads on to an extension 3 of the tube 2, fixed to the microscope body. A helical spring 6 surrounds tube 2 between the extension 3 and shoulder 5 so that the tube 1 is normally in the position shown. The shoulder 5 has a pin 7 which, when tube 1 is lifted against the pressure of spring 6, is adapted to engage a slot 8 in tube 2 so that the tube 1 may be held in its raised position. Specification 1594/05, [Class 98], is referred to.
Patent GB-721239-A (GB)
Title: Procedure for the exact adjustment of the distance between the aperture of the grid cylinder and the cathode face of a cathode ray tube
IPC: H01J29/48
Filed: 1952-07-11
Abstract: 721,239. Cathode-ray' tubes. STANDARD TELEPHONES & CABLES, Ltd. July 11, 1952 [Aug. 23, 1951]. No. 17570/52. Class 39 (1). A method of adjusting the distance between the cathode face and the grid cylinder aperture 3 of a cathode ray tube wherein an insulating body 4 to which the cathode 1 is fastened is inserted into a pot-like grid cylinder the bottom of which contains the aperture, is characterized in that the insulating body 4 is pushed into the grid cylinder until it contacts at least three flanges 5 that have been pressed inward out of the bottom of the grid cylinder, and that the insulating body with the cathode is then pushed along towards the grid aperture until the desired spacing is obtained by impressing at least three dents 6 into the side wall of the grid cylinder below the insulating body. The distance may be checked by focussing a microscope 7 on to the cathode through the grid aperture.
Patent GB-807848-A (GB)
Title: Improvements in or relating to harvesting machines for potatoes and other root crops
IPC: A01D33/04
Filed: 1956-06-07
Abstract: 807,848. Harvesting root crops. JOHNSON, T. S. May 9, 1957 [June 7, 1956], No. 17612/56. Class 6(3). [Also in Group II] A mechanism for separating potatoes or other root crops from clods of earth, stones and the like, and forming part of a harvesting machine in which haulms, small stones and loose earth have already been separated, includes an inclined conveyer 1 which feeds the mixture onto a separating conveyer 2 inclined downwardly transverse its direction of motion and having rubber fingers 15 upstanding from its surface. The potatoes pass over the fingers to a conveyer 17 and the clods and stones are delivered to a conveyer 18. The conveyer 2, which may be shaken during operation, has side chains driven by a shaft 12 and interconnected by transverse bars on which plates 14 are hinged along their leading edges. After the plates have passed over the leading end of the conveyer they hang vertically until they reach the other end when they again become horizontal to form a continuous surface. The upper side of the separating conveyer frame is hinged about a spindle 3, and the lower side is hung by rods 5 from the ends of a cross-bar 6 which engages a bar 7 notched along its upper edge. The bar 7 is pivoted at 8 and the height of its front end, and hence the conveyer inclination, is adjusted by means of a rod 9 having a pin 10 which may engage any one of a number of notches in slotted plates 11. Rubber fingers 16 along the lower side of the conveyer frame direct the potatoes clear of the near edge of the conveyer 17. Plates 14 may be removably fitted to the transverse bars so as to be exchangeable for plates having fingers of different size or spacing.
Patent GB-315078-A (GB)
Title: Improvements in the production of the acid sulphate of alphanaphthylamine
Filed: 1928-06-19
Abstract: 315,078. Warburton, T. June 19, 1928. a-Naphthylamine sulphates.-The acid sulphate and normal sulphate of a-naphthylamine are prepared by treating the base with the approximately theoretical quantity of sulphuric acid in a suitable mixing or grinding machine without the application of heat, whereby formation of tacky by-products is avoided. The acid sulphate may also be prepared from the normal sulphate by treatment of the latter with the approximately theoretical quantity of sulphuric acid in the same manner. The acid should preferably be present in slight excess. The mixing or grinding machine may be water-cooled.
Patent GB-190740-A (GB)
Title: Planetary gearing
IPC: F16H3/66
Filed: 1921-06-29
Abstract: 190,740. Welffens, E. J. June 29, 1921. Variable-speed and reversing gearing.-Epicyclic gearing comprising positive clutches preferably upon a planet shaft is adapted to yield one or more much reduced forward speeds and a reverse. A reversing-gear is shown in Fig. 2. A pulley D drives and carries planets 3, 3a, 3b on a common spindle 7. The gear 3 rolls on a permanently fixed sun gear A, and the other planet gears mesh with sun gears 2<a>, 2, which are loose on a driven shaft B and are driven slowly in opposite directions. A double clutch 5 on a feather on the shaft B makes connection alternatively with the gears 2, 2<a>. Fig. 4 shows a modification in which the clutch 5 slides on the planet spindle. In a further modification applied to spinning frames, internally-toothed dead and driven sun gears and interengaging planet gears are used with planetary clutches. A three-speed and reversing gear suitable for planing-machines is shown in Fig. 11. A driving-shaft D drives a wheel B, and four speeds may be obtained by means of two double planetary clutches 500, 500<a>, the internal gears 1, 1<a> both being dead. Specification 118,154, [Class 120 (ii), Spinning, twist. ing, &c.], is referred to.
Patent GB-562102-A (GB)
Title: Dust removers and filters
IPC: B01D45/12
Filed: 1942-12-14
Abstract: 562,102. Centrifugal dust removers. VOKES, C. G., STOKES, E. A., and VOKES, Ltd. Dec. 14, 1942, No. 17756. [Class 23] The apparatus comprises inner and outer dished bowls 1, 2 merging into a central outlet tube 4 for removal of the cleaned gas. The cross-sectional area of the passage between the bowls from inlet to outlet, is constant. Flow of gas may be in either direction. Dust is collected by a trap 5 and falls into a box 6, but if the apparatus is mounted in an inverted position, a tube may lead from the trap 5 to a collecting box below. The apparatus may be combined with a filter of an oil bath and scrubber type, or another type. Sound absorbing material may be used about the casing.
Patent GB-490793-A (GB)
Title: Improvements in hydraulic servo-brakes for motor vehicles
IPC: B60T13/06
Filed: 1937-06-25
Abstract: 490,793. Mechanical servobrakes. RENAULT, L. June 25, 1937, No. 17784. Convention date, April 16. [Class 103 (i)] Relates to hydraulic braking systems for motor vehicles in which a mechanical servo-device actuated by the driving shaft of the vehicle under the control of a pedal operated by the driver, is operatively connected with the master piston of the hydraulic part of the system. According to the invention the mechanical servodevice comprises two levers mounted on a common shaft, a lever 8 connected by a cable 7 to a pedal 5 and a follow-up lever 10 connected to the master piston 16 of the hydraulic transmission by a cable 11 and lever 12. When the two levers are displaced relatively to each other a clutch is engaged to rotate a cam 17 which by engagement with a follower roller 14 operates a connecting rod 15 coupled to the masterpiston 16. Specifications 225,504, 226,151, 226,179, [all in Class 103 (i)], 357,823, and 487,139 are referred to.
Patent GB-1038363-A (GB)
Title: Stabilizing chlorohydrocarbon solvents
IPC: C07C17/42
Filed: 1963-05-06
Abstract: 1,1,1-Trichloroethane, methylene chloride, chloroform, carbon tetrachloride, ethylene dichloride, trichlorethylene or perchlorethylene are stabilized by adding thereto from 0.001 to 1% by volume of N-methyl pyrrole and from 1 to 10% by volume of 1,4-dioxane based on the volume of the stabilized composition. The invention also comprises a composition of 0.1 to 50% by weight N-methyl pyrrole and 99.9 to 50% by weight 1,4-dioxane.  The most preferred composition is 1,1,1-trichloroethane containing 0.05% vol. N-methyl pyrrole and 4% vol. 1,4-dioxane.ALSO:1, 1, 1-Trichloroethane, methylene chloride, chloroform, carbon tetrachloride, ethylene dichloride, trichlorethylene or perchlorethylene are stabilized by adding thereto from 0.001 to 1% by volume of N-methylpyrrole and from 1 to 10% by volume of 1,4-dioxane based on the volume of the stabilized composition. The invention also comprises a composition of 0.1 to 50% by weight N-methyl pyrrole and 99.9 to 50% by weight 1,4-dioxane. The most preferred composition is 1, 1, 1-trichloroethane containing 0.05% vol. N-methylpyrrole and 4% vol. 1,4-dioxane.
Patent GB-633385-A (GB)
Title: Sugar refining
IPC: C13B20/14
Filed: 1947-07-07
Abstract: Acidic sugar-bearing solutions obtained from cane, beet, or sorghum or waste materials from canneries, such as fruit peelings or waste juices, are purified and reduced in acidity by treating with an organic anion exchanger material which is insoluble in the solution. The acidification of the solution has preferably been effected by treatment with an organic cation exchanger whereby positively-charged impurities have been replaced by hydrogen ions.  The solution may have been subjected to a preliminary clarification and defecation, and it is then passed, preferably in the form of a thin solution through a bed of cation exchanger.  Unless an acidified syrup for the production of a solution containing a proportion of invert sugar is required, the solution is maintained at a temperature below about 35 DEG C and is passed into the anion exchanger.  The syrup may be treated with an agent for absorbing colouring matter between the treatments with the cation and anion exchangers.
Patent GB-1448018-A (GB)
Title: Aircraft jet lift operation
IPC: B64C29/00
Filed: 1973-10-09
Abstract: 1448018 V.T.O.L. aircraft ROCKWELL INTERNATIONAL CORP 9 Oct 1973 [30 Nov 1972] 17925/76 Divided out of 1448017 Heading B7G [Also in Division F1] The subject matter of this Specification is described in Specification 1,448,017 but the claims are concerned with a method of operating an aircraft by varying the orientation of jet-lift and thrust apparatus installed in an aircraft aerofoil.
Patent GB-731279-A (GB)
Title: Pilger tube - rolling machines
Inventor: COOPER JAMES CORBETT
IPC: B21B21/00
Filed: 1952-07-16
Abstract: 731,279. Rolling, tubes. T. J. (GROUP SERVICES), Ltd. July 3, 1953 [July 16, 1952; Oct. 21, 1952], Nos. 17961/52 and 26387/52. Class 83 (4). A pilger tube-rolling machine comprises a pair of main rolls 1, 2, Fig. 1, with shallow grooves and a pair of subsidiary rolls 3, 4 mounted between the main rolls with their axes at right-angles to those of the main rolls. The rolls 3, 4 are supported on slides 14, 15 which are pressed towards the work by hydraulic pistons and cylinders 22, 24, and move in phase with the varying width of the grooves in the main rolls. The required movement is obtained by a varying supply through pipes 20, 26 from pistons 48, Fig. 2, moved in cylinders 50 by a cam 38 connected to the drive shafts 9, 10 for the main rolls. The rolls are yieldingly held apart by pistons and cylinder combinations 33, 35 which may be pneumatic or hydraulic.
Patent GB-1458317-A (GB)
Title: Magnetic brush developing apparatus for copiers
IPC: G03B21/00
Filed: 1974-04-25
Abstract: 1458317 Developing electrostatic images XEROX CORP 25 April 1974 [25 April 1973] 18070/74 Heading G2H A magnetic brush development apparatus, comprising a magnetic brush which is electrically biased in use, includes a detector which actuates an indicator when a short-circuit occurs across the brush. Preferably a resistor in series with the brush has a neon lamp in parallel, and the lamp lights when a short to earth occurs in the brush and the voltage across the resistor increases in consequence. A current sensitive switch relay in series with the brush may be arranged to stop operation of the copier of which the development apparatus is part.
Patent GB-491107-A (GB)
Title: Improvements in or relating to sprockets for driving films having sprocket teeth perforations
IPC: H05B3/60
Filed: 1937-06-29
Abstract: 491,107. Film sprockets. ELECTRICAL RESEARCH PRODUCTS, Inc. June 29, 1937, No. 18108. Convention date, June 30, 1936. [Class 97 (i)] Sprockets, for feeding at uniform speeds, sound &c. films shrunk by either of two amounts, have a shoulder diameter giving the sprocket a tooth pitch equal to that of the perforations of the film having the lesser shrinkage, and teeth the working faces of which conform to an involute or trochoidal curve generated from the pitch circle of a. sprocket having a pitch equal to that of a film with the greater shrinkage. The involute teeth are used when the stripping path of the film is straight, and the trochoidal teeth when it is curved ; both permit the film with greater shrinkage, while engaging the " leaving tooth " of the sprocket, to slip uniformly on the sprocket shoulder, and to engage the following tooth 'simultaneously with its disengagement from the leaving tooth. Films having intermediate amounts of shrinkage are fed by such sprockets with less speed fluctuation than by standard picture sprockets. The Figure shows a curved stripper plate 15 for a sprocket 5 ; the plate 15 has a reduced end which extends between the shoulders of the sprocket; and is carried, together with springs 17 extending from an arm 16 and engaging the film margins, by a supporting member 21 screwed to the casing. A pressure roller 7, on a member pivoted at 25, is held in position by a spring 26, and by an adjustable member 27 engaging a fixed stop 29.
Patent GB-444558-A (GB)
Title: Process for the renovation and new production of files
IPC: C23F1/06
Filed: 1934-06-19
Abstract: 444,558. Files. STERN, J., 38, Ansbacher Strasse, Berlin. June 19, 1934, No. 18126. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 30, 1935]. [Class 61 (ii)] [See also Group XVI] Files are manufactured or old files are renovated by treatment with an acid in the form of a spray. The files are suspended by strings in an acid bath containing paddles rotating at a very high speed.
Patent GB-734069-A (GB)
Title: Improvements in or relating to textile twisting machines
IPC: D01H1/10
Filed: 1953-06-30
Abstract: 734,069. Tensioning device for yarn. SACO-LOWELL SHOPS. June 30, 1953 [July 23, 1952], No. 18171/53. Class 120(2). [July 23, A textile twisting machine comprises a normally stationary yarn-package carrier rotatably mounted on a rotatable spindle having an axial yarn passage, therethrough, a rotatably mounted upper flyer including a substantially horizontal disc and brake means comprising a friction disc constrained against rotation with respect to the yarn package carrier and co-operating frictionally with the upper flyer disc to provide a pretension on a yarn being removed through the flyer from a yarn package mounted on the carrier and has the friction disc resting on the upper face of the upper flyer disc and free for movement in the axial direction so that the amount of the pre-tension is dependent upon the weight of the friction disc. As shown the invention is applied to a " two for one " twister consisting of a rotary part comprising whirl 18 and cup-shaped flyer 20 and a stationary part rotatably mounted on the rotary part by bearings 32 but held against rotation therewith by magnets 36, comprising a yarnpackage carrier 30 on which is mounted a spool 40. The spindle of the rotary part has an axial passage therethrough with which communicates a radial passage 24 in the flyer 20 the lower part of which is in the form of a yarn storage groove 22. The upper end of the normally stationary spool 40 is provided with an upper support member 46 which rotatably supports an upper flyer 50 consisting of a horizontal disc 54 which has a guide member 56 of generally heart shape, including curved slanting edges 60, extending downwardly from its peripheral edge. At the upper. end of said heart-shaped guide at opposite edges thereof are provided yarn guiding slots 55 the arrangement being such that the yarn unwinding from the spool 40 leaves at an angle substantially perpendicular to the axis of the spindle. For braking the upper flyer a friction disc 64, adapted to engage shaft 48 and be maintained in a non-rotative position thereby but capable of relative vertical movement with respect thereto, is provided such that it rests on the upper surface of the flyer disc 54 and thus exerts a braking action on the flyer and thereby imparts a pre-tensioning to the yarn.