baber/WOPTO huggingface dataset:
Patent GB-841822-A (GB)
Title: Improvements in or relating to polymerisation catalysts and polymerisation reactions
Inventor: LUFT NORBERT WALDEMAR
IPC: C08F10/00
Filed: 1955-11-16
Abstract: Olefines are polymerised by a supported Ziegler-type catalyst, made by mixing the two components of the catalyst in the presence of an inert carrier, upon which the final catalyst is found. Suitable catalysts are described in Specifications 833,430, 801,301, 799,823, 799,392 and consist of two components (A) a compound of a metal of Groups 4A, 5A, 6A, 7A or 8 of the Periodic system and (B) an organo-metallic compound or a hydride of a metal of Groups 1, 2, or 3, or of tin or lead; or an organic compound of boron or an addition product thereof with an alkali metal hydride.  As inert carriers there may be used powdered silicon carbide, calcium phosphate, magnesium carbonate, or water-soluble salts e.g. alkali metal chlorides, carbonates, or sulphates, but polymeric substances are excluded.  In examples, aluminium di-ethyl mono-chloride or aluminium tri-ethyl and titanium tetra chloride or tetraethoxide are added to a suspension of dry powdered silicon carbide, basic calcium phosphate or magnesium carbonate suspended in iso-octane in an inert atmosphere, in a halogenated hydrocarbon, or in light petroleum spirit containing an anti-oxidant.  Ethylene is then passed in to form a polymer which is easily separated from the supported catalyst.ALSO:A catalyst for polymerising olefines of the Ziegler type, is made by mixing the two components of the catalyst in the presence of an inert carrier, upon which the final catalyst is formed.  The two components of the catalyst are (A) a compound of a metal of Groups 4A, 5A, 6A, 7A or 8 of the Periodic system and (B) an organo-metallic compound or a hydride of a metal of Groups 1, 2 or 3; or of tin or lead, or an organic boron compound or an additive product thereof with an alkali metal hydride.  Suitable catalyst components are described in Specifications 833,430, 801,301, 799,823, 799,392.  As inert carriers there may be used, powdered silicon carbide, calcium phosphate, magnesium carbonate, or watersoluble inorganic salts e.g. alkali metal chlorides, carbonates, or sulphonates, but polymeric substances are excluded. In examples, aluminium diethyl monochloride or aluminium triethyl and titanium tetrachloride or tetra-ethoxide are added to dry basic calcium phosphate, silicon carbide, or magnesium carbonate in iso-octane, in an inert atmosphere, or in light petroleum spirit containing an anti-oxidant.  Halogenated hydrocarbons may also be used.  Ethylene is then passed in to form a polymer which is easily separated from the supported catalyst.
Patent GB-453395-A (GB)
Title: Improvements in or relating to a device for use in measuring a person for a tailored jacket or the like
IPC: A41H1/02
Filed: 1935-11-27
Abstract: 453,395. Measuring for wearing- apparel. POWE, G. H., 165, Regent Street, London. Nov. 27, 1935, No. 32914. [Class 141] A tailor's measuring device of the construction described in Specification 452,793 comprises a depth of scye measurement strip provided according to this invention with a locking device as, for example, in Fig. 1 for securing the measurement strips together in the relative positions to which they are adjusted. The depth of scye strip is marked 2 and the full chest measurement strip 1. The two strips are slidingly connected together by a metal base plate 3 carrying four eyes 4, 5, 6, 7. The eyes 4, 7 receive the depth of scye strip 2 and the eyes 5, 6 the full chest strip 1. The eye 7 carries a screw 8 to clamp the strip 2 down on the base 3 and to lock both strips 1, 2 against relative displacement. The device prevents sagging at the back. In a modification, Fig. 2, a locking means is also provided upon the index point plate referred to in the prior Specification. The full chest strip is marked 9 and the index point plate 10. A self opening eye projects through the plate 10 from a palm plate 12 secured thereto by any convenient means. Also mounted on the plate 10 is a clamping screw 13 projecting through from the plate 12 and secured by a nut 14. A part turn of the nut 14 closes the eye 11 down on the strip 9 and clamps it in position.
Patent GB-891661-A (GB)
Title: Improvements in and relating to machine tools
IPC: B23B31/00
Filed: 1959-09-29
Abstract: 891,661. Machine-tool details. DECKEL, H., and DECKEL, F. W. Sept. 29, 1959 [Nov. 29, 1958], No. 32994/59. Class 83 (3). A machine tool comprises a device 26 displaceable towards-and-from a tool spindle 2 to prevent a tool falling from the spindle before it has been securely attached thereto. A member 6 is secured in the spindle 2 by a drawbar 20 and is driven by a block 16 engaging a recess 12 in a flange 10. The device 26 is mounted eccentrically on a pin 24 so that it can be swung to the position shown to prevent the member 6 falling away when the draw-bar is not engaged.
Patent GB-847221-A (GB)
Title: Improvements in or relating to locking devices for multiple drawer sets, such as those of pedestal desks
IPC: E05B65/468
Filed: 1955-11-17
Abstract: 847,221. Multiple fastenings. WILKES BERGER ENGINEERING CO. Ltd. Nov. 19, 1956 [Nov. 17, 1955], No. 32998/55. Class 44. A locking device for multiple drawer sets, is controlled by a master drawer or separate control means which on closing or operation causes the locking means to lock one or more subsidiary drawers. On closing of master drawer 7, a nose piece 14 abuts and rotates a lever 13, pivoted on a plate 9, to engage and rotate an L-shaped latch member 10, about a vertical spindle 8 against a spring 6, to engage the head 17 of a spring biased bolt 16 on the back of each subsidiary drawer 3, the member 1 being hinged to spindle 8 by plates 5. The head 17 of bolt 16 has a chamfered surface to enable the subsidiary drawer to be closed after closing of the master drawer which can be independently locked and can be the central drawer in a twin pedestal desk, two locking devices then being used. In Fig. 6, not shown, a rocking lever imparts movement to the lever 13, and in Fig. 7, 8 not shown, the lever 13 is operated by a push rod which can be locked in the closed position.
Patent GB-410768-A (GB)
Title: Improvements in or relating to electrical condensers and methods of making the same
IPC: H01G4/248
Filed: 1932-11-22
Abstract: 410,768. Condensers. SOLAR MANUFACTURING CORPORATION, 599, Broadway, New York, U.S.A. Nov. 22, 1932, No. 33028. Convention date, May 25. [Class 38 (ii).] A single wire is used to act both as a clamp for the set of plates and as an external lead, in a fixed condenser. In the example a wire 15, Fig. 8, is bent so as to form a double rectangular loop with crimped ends adapted to be forced over a condenser assembly and into contact with the folded over ends 13, 14 of the foils. Fig. 7 shows a small condenser with two foils 11<a>, 11<b> only, with mica or like dielectric sheets 10.
Patent GB-520601-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/42
Filed: 1938-11-14
Abstract: 520,601. Electric cut-outs. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 14, 1938, No. 33077. Convention date, Nov. 13, 1937. [Class 38 (i)] [Also in Group XXXVII] In a high tension fusible cut-out of the expulsion type, a soldered connection and one or more pairs of contacts which are opened mechanically are arranged in series, the gases formed by the arc at the soldered connection acting to quench the arcs formed at the contacts. In Fig. 1, the terminal 2 is connected through a cap 4 and nut 3 to a rod 5 which is soldered at 1 to a rod, 6. At the lower end of the rod 6, a contact stud 7 fits in a hollow contact 8, connected to the terminal 9. The soldered connection 1 is enclosed in a sheath of material which gives off gas at a low temperature and the cartridge tube 10 has a lining 15 which emits gas under the action of an arc. On fusion of the joint 1 the resilient cap 4 lifts the rod 5 starting an arc and the gases evolved drive the plug 7 and rod 6 into the lower section of the cartridge and also extinguish the arc formed between the contacts 7 and,8. The plates 13 guide the plug 8 into a trap 11 provided with a resilient pad 14 and arcing directly between the contact 8 and the rod 6 is prevented by an insulating coating 17. The gases escape from the cartridge tube through a filter 12 consisting of thin parallel sheets a small distance apart parallel to one another. In Fig. 2, there are five pairs of contacts and a soldered connection. The contacts 7 are connected alternately by conducting rods 24 and non-conducting rods 25. The hollow contact of the first and second pair and of the third and fourth pairs are connected by external conductors 23 or by fuses. When the soldered connection fuses an arc is formed and extinguished at each of the five pairs of contacts: The contacts m'ay be so arranged that the arcs form one after the other. Specification 509,331 is referred to.
Patent GB-481039-A (GB)
Title: Improved electrical sharpening device for razor blades
IPC: B24D15/08
Filed: 1936-12-02
Abstract: 481,039. Sharpening razors. MEITNER. B., and BREVETIA SOC. ANON. Dec. 2, 1936, No. 33115. [Class 60] An electrically-operated. device for sharpening razor blades comprises an electromagnet consisting of a coil 13 and a core 12 mounted in a casing 14, the upper end of the core forming a fixed polepiece and being provided with pins 3 passing through the holes 4 in a blade 1. The blade rests on sharpening members 2 adjustably mounted on movable polepieces 6, of angle shape, riveted to springs 9, which are secured by screws 10 to angle-pieces 11 connected magnetically to the core 12 ; the springs are embedded in the angle-pieces 6, 11 and have free parts 15a permitting vibration of the polepieces and members 2. Alternating current, or interrupted direct current is supplied to the coil 13, thereby causing the blade to be pressed onto the upper, inclined, faces of the sharpening-members, which at the same time vibrate across the blade edges. Single-edged blades may be sharpened by a device, as above, but provided with one polepiece and sharpening member only.
Patent GB-186000-A (GB)
Title: Improvements relating to lubricating pumps
IPC: F16N13/12
Filed: 1921-12-09
Abstract: 186,000. Dowler, S. C., and Lamplugh, Ltd., S. A. Dec. 9, 1921. Pawl and ratchet actuation. - The actuating mechanism of a lubricating-pump comprises a ratchet or like wheel a connected to a rotary part b of the pump, an oscillatory pawl c for actuating the ratchet, and an eccentric &c. h driven by a shaft i for oscillating the pawl, and having its axis in line with the axis of the ratchet-wheel. A pin f on the casing g engages a slot e in an extension of the pawl, or a pin on the pawl may engage a slot in the casing. In another form, a double pawl is used.
Patent GB-897621-A (GB)
Title: Acoustical diaphragm
IPC: H04R7/14
Filed: 1960-09-27
Abstract: 897,621. Diaphragms. RADIO CORPORATION OF AMERICA. Sept. 27, 1960 [Oct. 29, 1959], No. 33210/60. Drawings to Specification. Class 40 (4). A diaphragm, intended particularly for use in a miniature loud-speaker or a microphone, comprises at least one thin sheet of material having protuberances arranged randomly and asymmetrically in clusters thereon, in order to stiffen the material without defining nodes of vibration therein.
Patent GB-1070788-A (GB)
Title: Cutting torch nozzle
IPC: F23D14/54
Filed: 1964-08-14
Abstract: 1,070,788. Burners. GRIESHEIM G.m.b.H. Aug. 14, 1964 [Aug. 17, 1963], No. 33217/64. Heading F4T. An oxy-fuel gas cutting nozzle comprises a central bore (1) for cutting oxygen, a passage (12) for the fuel gas surrounding the cutting oxygen bore and a passage (23) for further oxygen surrounding the fuel passage. The further oxygen passage and the fuel passage may be annular or consist of a series of bores arranged in a ring.
Patent GB-765946-A (GB)
Title: Improvements relating to the growing of primary ammonium phosphate crystals
IPC: C01B25/40
Filed: 1954-11-17
Abstract: A method of growing a primary ammonium phosphate crystal comprises flowing a growing solution of primary ammonium phosphate back and forth across a crystal seed of the phosphate while the temperature of the solution is gradually lowered to cause it to crystallize on the crystal seed, the solution having added to it trivalent chromium in an initial concentration from 0.6 to 3.0 parts of chromium per million parts by weight of phosphate in the solution, to inhibit side growth of the crystal.  The solution may contain 475 grams per litre of the phosphate, 0.03 to 0.06 grams per litre of iron, and, preferably 0.7 to 1.5 parts of chromium per million parts of phosphate.  Seed crystals are positioned in horizontal growing trays each with its Z axis vertical and its X and Y axes disposed at 45 degrees to the direction of solution flow; the flow is caused by rocking the tank back and forth about a horizontal axis. Specification 653,733 is referred to.
Patent GB-653268-A (GB)
Title: Improvements in or relating to cellular rubber articles and the formation thereof
Filed: 1947-12-17
Abstract: Cellular articles of synthetic rubber are obtained by subjecting to the action of a high-frequency field a composition having vaporizable liquid constituents dispersed therein, sufficient liquid being present to ensure that liquid will be present to the end of the treatment thus affording accurate temperature control, the boiling point of the liquid constituents being in the temperature range of vulcanization of the high frequency treatment.  The synthetic rubbers may be copolymers of butadiene with styrene or acrylonitrile, polychlorobutadiene, diolefine-isobutylene copolymers, polyisoprene, or polybutadiene. The cellular rubber may be vulcanized in a mould made of wood, porcelain or glass as described in Group XI.  The boiling point of the water of the latex may be depressed by adding acetone, methyl alcohol, ethyl alcohol, or iso-propyl alcohol, and the boiling point raised by adding sugar, glycols or amino-acids.ALSO:Cellular articles of natural or synthetic rubber are obtained by subjecting to the action of a high-frequency electrical field a rubber composition having vaporizable liquid constituents dispersed therein, sufficient liquid being present to ensure that liquid will be present to the end of the treatment, thus affording accurate temperature control, the boiling-point of the liquid constituents being in the temperature range of vulcanization of the high-frequency treatment.  The synthetic rubbers may be copolymers of butadiene with styrene or acrylonitrile, polychlorobutadiene, butyl rubber, polyisoprene or polybutadiene. In an example, a water dispersion of sulphur and zinc diethyl dithiocarbamate is added to a concentrated natural rubber latex and the mixture slowly agitated for some time, zinc mercaptobenzthiazole is then added and the mixture allowed to stand, the following substances are then added in solution n order, piperidinium pentamethylene dithiocarbamate, potassium soap of castor oil, and potassium oleate and the mass well beaten, towards the end of this operation zinc oxide and sodium silico-fluoride are added and the mass poured into a mould and then vulcanized according to the method described in Group XI. The mould may be made of wood, porcelain or glass.  The boiling-point of the water of the latex may be depressed by adding acetone, methyl alcohol, ethyl alcohol, or iso-propyl alcohol, and the boiling-point raised by adding sugar, glycols or amino acids.
Patent GB-917301-A (GB)
Title: Improvements in or relating to printing machinery
IPC: B41F1/26
Filed: 1960-09-28
Abstract: 917,301. Printing machines. BETHON, R. G. Sept. 28, 1960 [June 30, 1960], No. 33277/60. Class 100 (2). In a machine for producing multi-colour prints from a plate 3 comprising a flat undersurface embodying a number of recesses colouring substances are supplied to the recesses through piping 6 from containers 7 which are disposed in an airtight chamber 8 which is movable relative to the plate such that the free surface 7, of each colouring substance may be brought to the same level as the flat undersurface of the plate in order to prevent the substances in the piping 6 from flowing on to the print support 4 when the plate 3 is separated therefrom on completion of the printing operation. During this operation each sheet 5 to be printed is moved upwardly on the support 4 into contact with the plate. The colouring substances are injected on to the sheet 5 by electrically controlled means which increases the air pressure in the chamber 8 thus forcing the substances through the piping 6 to the recesses of the plate. One container may be connected to more than one recess.
Patent GB-511116-A (GB)
Title: Improvements in or relating to photoelectric cell housings and assemblies
IPC: H01J40/02
Filed: 1938-11-16
Abstract: 511,116. Two-part couplings. ZEISS IKON AKT.-GES. Nov. 16, 1938, No. 33364. Convention date, Jan. 25. [Class 38 (i)] [Also in Groups XXXVIII and XL] Relates to electrical connections for a screened photo-electric cell, particularly in soundreproducing apparatus. The cell 1 is enclosed in a cavity 4 in a metallic housing 2, a channel 5 communicating with the cavity, and containing a lead 8 connected at one end to the anode of the cell, and, at the end remote from the cavity 4, to a contact member 6 ; the housing 2 is removably secured to a metallic carrier 3. The contact 6, which is insulated by a bushing 7, engages with an insulated contact 9 mounted on a resilient tongue 10 which connects it to an insulated terminal 12, a screw 13 being provided to press the contact 9 against the member 6. The cathode of the cell is connected to the housing 2, and, through the carrier 3, to an earthing-terminal 15.
Patent GB-995421-A (GB)
Title: Line tracing apparatus
IPC: B23Q35/40
Filed: 1961-09-18
Abstract: 995,421. Photo-electric line followers. STEWART-WARNER CORPORATION. Sept. 18, 1961 [Sept. 19, 1960], No. 33389/61. Heading G1A. [Also in Division G3] The invention relates to a photo-electric scanning device for automatically following a line for the purpose of controlling a machine for example a flame cutting machine (Fig. 1) and is concerned with an unapertured mask (Fig. 5) which is caused to obstruct periodically the image of a part of the line cast upon a photo-cell. The scanning device (Fig. 1) comprises a sensing head 22 and a driving head 32 both mounted in a frame 24 and both rotatable by a two phase servomotor 26 coupled thereto by rack and pinion drive 30, 34 and 28. The driving wheel 36 is driven by a separate motor not shown. Within the sensing head 22 (Fig. 2) the mark 136 in front of the photo-cell 102 is caused to vibrate electromagnetically to interrupt the beam of light generated by a plurality of lamps 94 and reflected from the line 31 to be followed. An alternating output produced from the photo-cell and containing a number of harmonic frequencies is fed through slip rings 118a, b to a control circuit (Fig. 7). The mark 136 (Fig. 2) which is smaller than the rectangular photosensitive area of the photocell and preferably has a width equal to the width of the projected image vibrates transversely to the length of the image and with equal amplitude on either side of a plane perpendicular to the axis of the photosensitive area. One form of mask is shown in Fig. 5 and is formed as an extension of a bar 134 secured to a permanent magnet 155 vibrating in the field of an adjacent electromagnet (Fig. 4, not shown). In an alternative arrangement (Fig. 10, not shown) the mask angularly vibrates about an axis perpendicular to the photosensitive area. The control circuit Fig. 7 operates by detecting the phase and magnitude of the fundamental component of the output of the photo-cell (Fig. 8, not shown). Referring to Fig. 7 the output of the photo-cell 102 is fed through series connected amplifiers 180, 182 to a second harmonic rejection circuit 184, the remaining signal being amplified and applied to one winding 188 of a two phase steering motor 26. The other winding 190 of the motor 26 is connected to the A.C. supplying the vibrator 104 through a phase shifting capacitor 192. A tacho-generator 34 directly coupled to the shaft of motor 26 has its windings connected as shown and serves as a feed back element to control the speed of the motor 26. Also incorporated in the circuit is an alarm system 204 which in addition to providing a warning when there is no line in the scanning field also turns off the supply to the motor 205 which drives the driving wheel of the scanning device. An alternative arrangement (not shown) utilizes the second harmonic content of the photo-cell output to control the position of the scanning device.
Patent GB-1506865-A (GB)
Title: Valve assemblies
IPC: F16K27/00
Filed: 1976-10-11
Abstract: 1506865 Valves SUBMARINE PRODUCTS Ltd 11 Oct 1976 [11 Aug 1975] 33398/75 Heading F2V A valve for mounting on a gas cylinder and for connection to a hose has an adapter 10 sealingly received in a through-bore 20 of a boss-like sleeve 6 so that the outlet 19 of the adapter is in communication with the valve inlet 7 and flow therebetween is controlled by a valve 4. The valve body has a radial passage 9 connecting with a circumferential groove 8 in the through bore 20, which in turn co-operates with a circumferential groove 16 in the adapter connecting with the outlet 19 via passages 17, 18. The adapter, which may have different outlet ends to suit different hose connections, has two diametrically opposed lugs 27 which mate with two of four equispaced slots 26 in each end of the sleeve so that the adapter may be directed in either axial direction and assume one of four angular positions.
Patent GB-604967-A (GB)
Title: An improved joinery or carpentry joint
IPC: E04B1/48
Filed: 1945-12-11
Abstract: 604,967. Carpenters' joints. NEWSUM, SONS & CO., Ltd., H., and GRAYER, W. J. Dec. 11, 1945, No. 33415. [Class 20(ii)] Two members such as a framework comprising vertical jambs 3, 4 and horizontal heads and/or sills 7, 8 of wooden window frames forming part of a bay window are joined by a double dove-tail key 13 fitting into dove-tail slots formed in the parts to be connected. The key is fixed in position by hardwood dowels 15.
Patent GB-521069-A (GB)
Title: Improvements in turbo-generators
IPC: F01D5/04
Filed: 1938-11-17
Abstract: 521,069. Bearings. AKTIEBOLAGET LJUNGSTROM ANGTURBIN. Nov. '17, 1938, No. 33483. Convention date, Nov. 18, 1937.' [Class 12 (i)] [Also in Group XXVI] In a turbo-generator comprising a radial flow turbine of the double rotation type having its oppositely disposed blade systems 3, Fig. 1, carried by overhung portions of the generator shafts 1, the distance X between the opposite outer faces of the shaft bearings 6, 7, located between the turbine and generator, is made at least one third of the length Z of the overhung portion measured between the medial plane of the bearings and the centre line of the blade systems. The distance X is also one tenth of the distance Y + Z measured between the centre lines of the blade systems and the outboard gnerator bearing 5. The bearings 6, 7 may be replaced by a composite bearing 13, Fig. 5, having a clearance 14 intermediate its ends or, if desired, one or more bearings may be placed between them. The bearing arrangement facilitates the construction of the exhaust casing 9 in, the form of a small angled cone which reduces exhaust eddy losses and offers more rigidity to axial stresses. The Specification as open to inspection under Sect. 91 comprises also the use of a single bearing having a length X in place of the two bearings 6, 7. This subject-matter does not appear .in the Specification as accepted.