baber/WOPTO huggingface dataset:
Patent GB-406831-A (GB)
Title: Improvements in or relating to tumbler switches
IPC: H01H23/28
Filed: 1932-11-24
Abstract: 406,831. Tumbler switches. LUNDBERG & SONS, Ltd., A. P., and PEGG, G., 477, Liverpool Road, Holloway, London. Nov. 24, 1932, No. 33264. [Class 38 (v).] A double pole change-over tumbler switch has six fixed contacts arranged in two sets A, B, C, and D, E, F, on the base. Two contact carriers 33, 35 are independently pivoted to a bridge piece carrying a tumbler 37. The carrier 35 carries interconnected contact blades 41, 42 opposite to fixed contacts B, C and a single contact blade 43 opposite to contact A. The carrier 33 carries interconnected blades 51, 52 opposite contacts D, E and a single blade 53 opposite contact F. The blade 43 has an extension 45 opposite contact D and the blade 53 has an extension 55 opposite contact C. In the normal off position Fig. 2, the tumbler is in the central position and both sets of blades are inoperative. If the tumbler is moved to the upper position, the lower carrier 33 is moved toward the base and the blades make contact with the contacts D, E, F, as in Fig. 3. The current then passes from positive main lead 22 through contact D blades 51, 52 to subsidiary circuit lead 24 and from the other subsidiary circuit lead 25 through contact F blades 53, 54 and contact C to negative main lead 23. If the tumbler is moved to the lower position the upper carrier 35 is rocked and the blades engage the contacts A, B, C. Blades 43, 45 connect the positive main 22 to another subsidiary circuit lead 26 and blades 41, 42 connect the other subsidiary circuit lead 27 to the negative main. Although the contacts C, D are shown double in Fig. 3, in practice the pairs of blades 42, 55, and 45, 51 are in the same plane.
Patent GB-794032-A (GB)
Title: Improvements relating to water-soluble unsaturated polyesters and insoluble polymersobtained therefrom
IPC: C08G63/676
Filed: 1954-11-17
Abstract: A water-soluble unsaturated polyester is made by reacting (a) a polyethylene glycol of molecular weight about 600, (b) a straight chain unsaturated dicarboxylic acid (e.g. maleic or fumaric), and (c) an unsaturated dicarboxylic acid in which the unsaturation is not in the direct chain of atoms connecting the carbon atoms of the carboxyl groups (e.g. itaconic or carbic).  Preferably 0.25-0.45 mols. of acid (c) are employed per mol. of acid (b). The polyesters may be cured by the action of peroxide catalysts (e.g. tertiary butyl perphthalate), free radical catalysts or heat.  The products are useful for coating textiles or paper, as binders for glass wool or abrasives, for sizing materials, or in the manufacture of laminates.  U.S.A. Specification 2,166,542 is referred to.
Patent GB-486537-A (GB)
Title: Improvements in or relating to meat tendering apparatus
IPC: A22C9/00
Filed: 1936-12-04
Abstract: 486,537. Tendering meat. DIETZ, J. P. M., BAKER, D. T., and CHURN, C. R. Dec. 4, 1936, No. 33330. [Class 28 (ii)] A meat-tendering apparatus comprises a plurality of knives 23 movable through a grid 13 into a piece of meat situated below them, the grid being mounted on two pairs of parallel pivoted arms 10, 11 which are actuated by a spring 17 which tends always to force the grid into an upper limiting position defined by the arms 10 abutting against a stop 18. The grid bars 13 are mounted above a face plate 14 and are rigidly attached to a plate 15 which is secured by screws 16 to the horizontal limb 32 of an L-shaped casting, the vertical limb 12 of which is pivotally connected to the arms 10, 11. The knife holder 19 is connected to the grid by telescopic spring casings 30, 31, the springs 36 being threaded upon central bolts 34. The springs 36 tend always to separate the holder 19 and the grid. The holder is pivotally connected by a bifurcated link 20 to a lever 7 pivoted at 6 to the standard 3, and the depression of the lever 7 and, consequently of the knives, is limited by an adjustable screw stop 37 which abuts against an extension 39 of the lever. The knives are made of metal plates, the upper ends of which have dovetail projections 22 which are held between an undercut recess on the holder 19 and a similar recess in a detachable side member 28 held in position by a knurled bolt 29. The knives are threaded on a rod passing through holes in the parts 22, and are spaced by distance washers. The points or cutting-edges of the knife blades are inclined, and adjacent knives are assembled in reverse order, so that the blades in adjacent rows are in register, but the inclinations of the cutting- edges are opposite. The base board 2 is rotatable on a central pivot which passes through a, slot in the base 1 so that the board is movable towards or away from the standard 3. In use, the lever 7 is depressed, and the knives and grid move together towards the meat, until the knives are projected into the meat. When the lever is again raised, the knives and grid rise together, until the upward movement of the grid is checked by the abutment 18. The compression springs 36, aided by the lever 7, then withdraw the knives from the meat.
Patent GB-1276875-A (GB)
Title: Cutting device for machines for cutting articles made of blown plastics
IPC: B26D3/16
Filed: 1969-07-02
Abstract: 1276875 Trimming device LESIEUR-COTELLE 2 July 1969 [2 July 1968] 33334/69 Heading B5A A cutting device, particularly for trimming blown plastics articles which are rotated, comprises a cutting blade pivoted about a first axis for movement into and out of engagement with the rotating article and about a second axis perpendicular to the first. The latter movement is effected by a groove on the article, the cut being effected at the bottom thereof. A cutter 9 mounted on an arm 8 is movable perpendicular to the axis of rotation 4 of the article 5 in the direction of arrows 19, 21 by rotation of shaft 3, e.g. by a fluid cylinder through arm 18, and free to move parallel to axis 4 about shaft 7 against action of spring 15 between the arm 8 and extension 6a, from the position where bolt stop 13 abuts bracket 6. The knife is guided in this latter direction by the surface (16, Fig. 3, not shown) of blown head extension (11) of the article to be cut off, into groove (12).
Patent GB-935287-A (GB)
Title: Polymerization of propylene
IPC: B01J21/16
Filed: 1959-10-01
Abstract: Propylene is polymerized principally to dimer by contacting in the vapour phase with an acidic clay or silica-alumina having ion-exchange characteristics in the presence of water and/or an alcohol.  When water is used the weight ratio of propylene to water may be 2,5-30:1.  Suitable conditions are 550 DEG -1000 DEG F., superatmospheric pressure, e.g. 25-250 p.s.i.g., space velocities of 550-3300 volumes of propylene at standard temperature and pressure per volume of catalyst per hour.  Instead of water may be used methanol, ethanol or isopropanol.  The catalyst may have been partially neutralized by treatment with a basic, e.g. sodium carbonate, solution as described in Specification 935,288.
Patent GB-832020-A (GB)
Title: Method of manufacturing monocrystalline bodies of semiconductor material
IPC: C30B11/00
Filed: 1957-10-25
Abstract: <PICT:0832020/III/1> Monocrystalline bodies of semi-conductor material are made by introducing liquid material into a mould in contact with a seed at the bottom of the mould, and cooling the material from the seed upwards to grow a single crystal, while maintaining throughout the solidification a pressure at the surface of solidification sufficient to prevent the formation of cavities in the solid material.  A seed crystal 6 (Fig. 1) is placed in a two-part graphite mould 1, and pieces of material 5 are placed in a funnel 1a and melted by an induction heater 3 in an inert atmosphere so that the mould and the funnel are filled with molten material, the hydrostatic pressure of the molten material in the funnel initially providing a suitable pressure.  Water is passed through a double jacket 4 surrounding the lower end of the mould, and the mould is slowly lowered so that the material is solidified from the seed crystal upwards and a single crystal obtained.  As the liquid solidifies and the hydrostatic pressure decreases, additional pressure is obtained by increasing the gas pressure in the apparatus. The material may be germanium, silicon, or an intermediate compound, such as indium antimonide.  The material may contain doping substances and the grown crystal may be zone-melted to obtain uniform distribution or zones of opposite type of conductivity.  Also the crystal may be heated and slowly cooled.
Patent GB-480815-A (GB)
Title: Improvements in percussive rock drills
IPC: B25D17/22
Filed: 1936-12-07
Abstract: 480,815. Percussive rock drills. BRITISH FLOTTMANN DRILL CO., Ltd. (Flottmann Akt.-Ges.) Dec. 7, 1936, No. 33522. [Class 124] In a percussive rock drill of the kind having a bore in the drill steel and a coupling head or union formed integrally with or attached to the drill steel shank for supplying flushing liquid to the bore, and in which rubber or like packing rings or collars are introduced into the bore of the union to embrace the drill steel shaft, such as that described in Specification 432,265, the union d is provided with a lubricant chamber g and suitable ducts i for leading the lubricant to the collars f and/or to the drill steel shaft a. The chamber g may be tubular and closed by a screw cap h having a rigid blade k adapted to pass between the turned down ends of an annular spring m secured in a groove in the mouth of the chamber, to hold the cap against vibration. According to the Provisional Specification the cap may be notched to receive a spring member secured to the union. Alternatively, the tubular lubricant chamber may be replaced by a lubricant nipple for connection to a pressure lubricant gun.
Patent GB-352863-A (GB)
Title: Improvements in or relating to kneading and mixing machines particularly for paste-like goods
IPC: B01F11/00
Filed: 1930-11-07
Abstract: 352,863. Kneading &c. machines. ARTOFEX ENGINEERING WORKS, Ltd., 6, Pentonville Road, Islington, London. Nov. 7, 1930, No. 33538. Convention date, Dec. 17, 1929. [Class 86.] In a kneading or mixing-machine of the kind in which a pair of kneading-arms are given intersecting curved paths in an open, rotating pan, the arms are mounted on each side of a stirrup in which the pan is mounted, the stirrup being tiltable to discharge the pan. The arms 6, 7 are carried on crank-pins 11 on intermeshing gears 10 mounted in the upper part of the hollow stirrup 1. The pan 21 is carried by a bearing 22 and driven through chain and bevel gearing from one of the gears 10. The stirrup is carried by frame members 4, 5 and can be tilted by hand-operated sector gearing, counterweights 34 being provided.
Patent GB-879114-A (GB)
Title: Improvements in or relating to index tabs for card indexes
IPC: B42F17/00
Filed: 1957-10-28
Abstract: 879,114. Indexing and indexing tabs.  EBHARDT, H., LINGELSHEIM, VON W., ERLICH, H., and EBHARDT, H., [trading as KONIG & EBHARDT GESCHAFTSHUCHERFABRIK, J. C.]. Oct. 28, 1957 [Oct. 27, 1956], No. 33602/57. Class 16. An index tab of pliable, preferably synthetic plastics material, has a generally triangular attachment portion with a tongue at each corner for engagement in slots in an index card near its edge and a portion carrying indicia which when the tongues are engaged in the slots projects beyond the edge of the index card. As shown, Fig. 2, a tab 4 has tongues 12-14 inserted in slots 15 in an index card 1 and a portion 5 extending above the top-edge of the card. The portion 5 is preferably transparent and may receive indicia directly or be formed as a flattened tube in which a cardboard index slip is inserted. As shown, the cards 1 are arranged in groups between guide cards 2 carrying tabs 3, the tabs 4 being arranged in staggered series across a file those on the rear half of the cards having portions 5 twice the height of the portions 5 of the front tabs. Indicia corresponding to the indicia on the tabs are carried by the guide cards 2 either behind the portions 5, at 9, 10 or above (not shown). Modified forms of tab are shown in Figs. 6-8.
Patent GB-605018-A (GB)
Title: Improvements in and relating to permutation locks
IPC: E05B37/02
Filed: 1945-12-12
Abstract: 605,018. Permutation locks. FREEDENBERG, D., LASSMAN, S., and LASSMAN & CO., Ltd. Dec. 12, 1945, No. 33603. [Class 44] A permutation padlock has a plurality of rings 12 arranged within a gap 2 in the lock body 1 encircling one limb 8 of the J-shaped bolt 9 and each ring (see Fig. 5) is provided, in addition to a through gate 14 with a series of recesses 15 to produce deceptive clicking sounds by coacting with detents 17, Fig. 3, on the bolt limb. The other limb 10 of the bolt engages a socket 11 in the lock body. A spring 18 is provided to displace the bolt to the open position, when all cylinders have been rotated to bring the gates thereof into alignment with the respective detents.
Patent GB-447425-A (GB)
Title: Improvements in apparatus for separating liquids from solids
IPC: B01D21/04
Filed: 1934-11-22
Abstract: 447,425. Gravity-separation apparatus. STOTHERT & PITT, Ltd., Bath, and BECKERLEG, G. R., Tresillian, Coleshill Road, Water Orton, near Birmingham. Nov. 22, 1934, No. 33637. [Class 46] The scraper blades of a conveyer for removing solid matter from a settling tank are carried by a band of rubber or waterproofed fabric. As shown scrapers 12 are riveted to an endless belt 11 of rubber-covered canvas, the belt being formed with apertures between adjacent scrapers to allow the solid matter to pass to the bottom of the tank. The material under treatment is supplied to the tank through ports 8 in the side wall. Liquid passes over a weir 5 to an outlet 7 and the settled matter is pushed by the scrapers up an inclined portion 4 of the floor and over a lip 9 into a shoot 10. The belt is driven from the upper pulley 14. The bearings of the pulley 15 at the other end and those of guide pulleys 17 at the angle of the floor may be supplied with water under pressure to prevent the entry of sand. The bearings of the pulley 15 are adjustable to take up slack. In order to prevent wear the bottom of the tank may be lined along the edges with strips of wood. Curved plates 25 may be provided on the sides of the tank to guide the belt where it passes round the pulley 15.
Patent GB-512546-A (GB)
Title: Improvements in and relating to photo-electric optical systems for the scanning of records by reflected light
IPC: G11B7/00
Filed: 1938-11-21
Abstract: 512,546. Optical sound-reproducing apparatus; copying-telegraphy; light-sensitive cells. KOLB, O. K. Nov. 21, 1938, No. 33735. [Class 40 (ii)] [Also in Group XL] Relates to photo-electric systems for scanning, records by means of reflected light, applicable for sound reproduction or for picture telegraphy, in which use is made of an optical system including an objective lens by which a scanning image is formed on the surface of the record, the lens and/or the scanning image being substantially surrounded by a light-sensitive cell. According to the invention, the cell is of the self-generating (e.g., barrier-layer) type, and its sensitive layer 10 is formed on a metal backing 6 which serves as a mounting for the objective lens 5. As, shown, the lens mounting is formed as a paraboloidal hood, which is closely adjacent to the record on which the scanning image 8 is formed. Modifications are shown or described in which the hood is a flat ring, or is conical or cylindrical, or in which the photo-cell surface may be of part-spherical or ellipsoidal form.
Patent GB-1407699-A (GB)
Title: Location members for blocks of building structures
IPC: E04B5/32
Filed: 1972-07-20
Abstract: 1407699 Spacer for filler blocks P E PRODUCTS (NETHERTON) LTD 19 June 1973 [27 June 1972 20 July 1972] 30147/72 and 33878/72 Heading E1W A cruciform spacer for filler blocks between which concrete may be cast comprises four elongate arms 11 radiating from a central boss 12, the outer end of each arm having two flanges 21 at right angles to each other for receiving the corner of a block. The spacer may be secured to temporary shuttering boards by nails through apertures 17 in 'bosses 16 in each arm. The central boss 18 may be conically tapered towards the shuttering and may be provided with a threaded sleeve to receive light fixtures or suspended ceiling hangers. The arms 11 may 'be of T-shaped cross section. The thickness of the spacer may be such as to act as reinforcement spacing for bars laid between the blocks to form part of an intersecting grid of cast concrete beams.
Patent GB-357837-A (GB)
Title: Improvements in or relating to air cooled cylinders for internal combustion engines
IPC: F02F1/04
Filed: 1930-11-11
Abstract: 357,837. Cylinders. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Nov. 11, 1930, No. 33938. Convention date, Nov. 19, 1929. [Class 7 (ii).] A beryllium - alloy cylinder head 2 is screwed and shrunk on a steel barrel 1 and surmounted by a light metal casting 4 containing the inlet and exhaust passages. The head 2 may be flat and contain four valve seats. Cooling ribs 5 may be machined on, or an aluminium ribbed jacket 6 may be cast round, the barrel 1.
Patent GB-380309-A (GB)
Title: Improvements in the production of stereotype printing plates
IPC: B41D3/00
Filed: 1931-12-08
Abstract: 380,309. Stereotype. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Wood Newspaper Machinery Corporation; 501, 5th Avenue, New York, U.S.A.) Dec. 8, 1931, No. 34007. [Class 100 (ii).] A finishing-machine for use with a number of casting-devices for stereotypes is arranged to be moved from alignment with one casting- device into alignment with another while the trimming-operation is taking place, the time occupied in moving the machine being shorter than that required for trimming the plate. Preferably two casting-devices are employed, their axes being arranged to converge, and the finishing-machine is arranged to pivot around the point of intersection of the axes. The frame 10 of the machine is provided with rollers 18 travelling on an arcuate track. The frame carries a motor 20 which drives a shaft 24 connected to the shaft 21 of the shaving-device. The motor actuates saws 22 arranged to rotate about the shaft 24 to trim the ends of the plate. The shaft 24 is also connected to a bevel wheel 26 adapted to be engaged by one of a pair of bevel wheels 27 loose on a shaft 29, but adapted to be clutched thereto by a sliding clutch member 28. The clutch is under the control of a bell-crank lever 33 one arm of which is engaged, when the machine reaches the limit of movement in either direction, by one of a pair of stops 41 on the track in order to disconnect the respective bevel wheel from the shaft 29. The shaft carries a gear wheel 31 engaging a rack 19 adjacent the track, and causes the movement of the machine about its pivot ; alternatively, the rack may be replaced by a chain stretched taut over a curved surface and engaged by a sprocket wheel on the shaft 29. The movement of the lever 33 to cause the clutching of one of the bevel wheels 27 to the shaft 29 is under the control of a pair of handles 34 on shafts 35 which carry arms 36 both connected to a rod 38 carrying a fork 37 engaging the lever 33. The handles 34 can be rendered inoperative by means of a pair of handles 43 on a shaft and formed with projections 44 adapted to engage projections 45 on the arms 36. The lever 33 is connected to the starting-switch 46 for the motor, so that movement of the lever to clutch a bevel wheel 27 to the shaft 29 connects up the motor. The clutch is disengaged when it has been moved into alignment with a casting-device, but the motor continues to operate to complete the trimming of the plate until disconnected by a pin carried by the shaft 21 engaging the switch 48. A cooling-arch 53 is carried by the machine.
Patent GB-878516-A (GB)
Title: Process for the manufacture of olefine polymers of high molecular weight
IPC: C08F10/00
Filed: 1957-10-31
Abstract: Polymers of one or more olefines containing 1-6 carbon atoms are made by polymerizing the monomers, in the presence of a dispersing medium and a catalyst comprising one or more organometallic compounds and one or more compounds of a metal of sub-group IVa, Va, and VIa of the Mendeleeff Periodic Table, by starting the polymerization at a concentration of catalyst in the dispersing medium (calculated on the trivalent state of the metal compound) of 5-20 millimols per litre of the dispersing medium and diluting the polymerizable mixture during the polymerization with a further quantity of dispersing medium up to 20 times the quantity of dispersing medium originally present.  The polymerization may be started in a prepolymerized polymer suspension containing the above concentration of catalyst in the dispersing medium.  The polymerization may be carried out in a continuous manner.  The dispersing medium may be methyl-cyclohexanone, or a mixture of saturated hydrocarbons of boiling range 160 DEG -200 DEG C.  The catalyst exemplified consisted of TiCl3 and aluminium sequichloride or aluminium diethyl monochloride, and the TiCl3 component was made by reducing titanium tetrachloride with ethylaluminium sesquichloride in cyclohexane.  The olefin may be ethylene, propylene, or butylene, or a mixture thereof.
Patent GB-431670-A (GB)
Title: Improvements in or relating to processes for rendering woollen or other animal hair textiles repellent to water
IPC: D06M13/188
Filed: 1934-11-27
Abstract: 431,670. Waterproofing. STUDIENGES. FUR FASERVEREDLUNG, (formerly DEUTSCHE KUNSTSEIDEN-STUDIENGES.), 12a, Bellevuestrasse, Berlin. Nov. 27, 1934, No. 34099. Convention date, Dec. 4, 1933. [Class 140] Animal fibrous material such as wool is rendered water repellent by subjecting the cleaned material to an additional treatment in a solution of a water soluble soap, followed by rinsing, preferably in cold water. The treatment is preferably effected at above 25‹ C. with a soap solution containing 1-4 kilogms. soap per cubic-metre, for 5-20 minutes with the addition of sodium carbonate. Suitable soaps are commercial soaps such as shredded potash soap, Marseilles soap, soap flakes, soap powder; water-soluble salts of high fatty acids such as sodium and potassium salts, saturated and unsaturated fatty acids or mixtures thereof may be used. The treatment may be repeated several times with intermediate rinsing in cold and preferably soft water. The material may be in the form of felt, loose fibre, yarn, fabric, knitted or woven goods, whether in a raw, bleached, or dyed condition, but no acid baths should follow the soap treatment.