baber/WOPTO huggingface dataset:
Patent GB-945284-A (GB)
Title: New boron-boron bonded diborazoles
IPC: C08G59/40
Filed: 1962-05-30
Abstract: The invention comprises boron-boron bonded diborazoles of formula: <FORM:0945284/C2/1> wherein R and R1 are the same or different and are alkyl groups containing 1 to 6 carbon atoms or phenyl groups. They are prepared by reacting a chloro- or bromo-borazole of formula: <FORM:0945284/C2/2> wherein X is chlorine or bromine with an alkali metal or an amalgam or alloy thereof having a continuously available clean active surface.  The reaction is preferably carried out in an inert anhydrous solvent e.g. xylene, toluene or benzene, and under an inert atmosphere e.g. nitrogen.  In an example a solution of B-chloro- B-di-n-butyl-N-trimethylborazol in xylene is mixed with a dispersion of sodium in xylene and the mixture refluxed under nitrogen for 7 hours.  The mixture is cooled and filtered and xylene vacuum distilled from the filtrate to yield a residue of B,B-bis (B-di-n-butyl-N-trimethylborazole).  B,B-bis (B-diethyl-N-tri-propylborazole), B,B-bis (B-dimethyl-N-trimethylborazole) and B,B-bis (B-diphenyl-N-trimethylborazole) are also prepared in examples.
Patent GB-331109-A (GB)
Title: Improvements in tunnel kilns
IPC: F27B9/30
Filed: 1929-07-08
Abstract: 331,109. Woodall-Duckham (1920), Ltd., and Duckham, Sir A. M. July 8, 1929. Tunnel kilns; walls.-In a tunnel kiln having a travelling platform or trucks A, there is provided, at each side of the tunnel, a roller B adapted to smooth out or replace by pressure any parts of the platform or trucks which, owing to expansion or other cause, project laterally beyond the normal width thereof. The rollers may be spaced apart a distance equal to the normal width of the platform or trucks, or they may be maintained in contact with the edges thereof by springs. As shown, the rollers are mounted on vertical spindles C fixed in bars D which are attached to the top and bottom plates of a casing E, the latter being adjustably secured to the tunnel structure by bolts F housed in slots G. A plurality of pairs of rollers may be provided. in which case the rollers of each pair are arranged slightly closer together than those, of the preceding pair so that the removal of irregularities on the edges of the platform or trucks is effected in stages.
Patent GB-186764-A (GB)
Title: Improvements in sheep shearing machines
IPC: B26B19/24
Filed: 1921-08-08
Abstract: 186,764. Mason, H. Aug. 8, 1921. Hair clippers.-Relates to sheep-shearing machine handpieces of the kind in which the hand grip forms part of the shear body and in which the cutter is reciprocated by means of a spindle passing through the hand grip and driven from the line shaft by means of a hinged joint carrying cog-wheels. A thumbpiece is located on the handpiece, the operation of which disengages the spindle from the line shafting without producing relative movement between the hand grip and shear body. In the form shown in Fig. 1, a forked lever 4 provided with a thumb-piece 9 is pivoted at 5 and engages a. shoulder 2 on the shaft 1 so that movement of the thumb-piece causes the shaft to slide longitudinally and disconnect the cog-wheel 13 from the cog-wheel 14, which are normally held in engagement by the spring 16. -Fig. 5 shows a form in which the cog-wheel 13 normally engages the shaft 1 through a dog clutch 51 which is disengaged by the movement of the shaft 1. Fig. 6 shows a form in which the shaft 1 is not moved, but a sleeve 23 which is hinged to a sleeve 27 carrying the outer cog-wheel 28 slides relatively to the shaft 1 between a shoulder 24 on a bush 25 and the end of a sleeve 26. This sleeve is moved by means of a rod 30 operated by a pin 43, Fig. 8, engaging a cam-slot 42 in a thumb-piece 41, and is provided with grooves 47, 46 which are engaged by a catch 44 when the gear is in its operative and inoperative position respectively.
Patent GB-849130-A (GB)
Title: Improvements in piston-and-ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/20
Filed: 1958-07-01
Abstract: 849,130. Piston packing. CROSS MANUFACTURING CO. (1938) Ltd. July 1, 1958, No. 21031/58. Class 122 (1). A piston 3 has annular grooves 4 each containing a single split packing-ring 1 of substantially rectangular section and of dished shape when unstressed, the width z of the groove being substantially equal to the thickness y of the ring with slight clearance so that when the ring is inserted therein it is resiliently flattened and bears at its inner and outer edges 6 and 7 against the sides of the groove. The radial width x of the ring is preferably at least three times its thickness y and substantially equal to the depth u of the groove. The lands 8 of the grooves may be cylindrical or, as shown in Fig. 8, frusto-conical. Specification 794,889 is referred to.
Patent GB-327078-A (GB)
Title: Improvements in cylinders and crank cases for two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1929-07-09
Abstract: 327,078. Mandler, E., and Climax Motorenwerke und Schiffswerft Linz Akt.-Ges. Nov. 7, 1928, [Convention date]. Cylinders, construction of, and cooling; crank chambers. - In a two-stroke-cycle engine cylinder block, which includes the top half of the crank-case, the water jacket f is formed by rectilinear generatrices extending, from the cylinder head flange p, tangentially to the crank-case. Cooling water is supplied by a passage b to one of four pockets h extending from the water space which surrounds the transfer-passage d. The faces of air and exhaust ports b, b, r and the seats of cleaning doors care arranged in two planes, within which base holding-down Ranges extend, so that they may be machined at one operation.
Patent GB-737827-A (GB)
Title: Thermo-electric device
IPC: H01L35/30
Filed: 1953-07-30
Abstract: 737,827. Thermopiles. ERIE RESISTOR CORPORATION. July 30, 1953 [Aug. 14, 1952], No. 21141/53. Class 53. A thermopile consists of a pile of rings 1 made of reduced titanium dioxide ceramic material with interleaved metal rings 2 having flanges 13, 14 on their inner and outer peripheries to form a series of thermo-electric junctions of which the inner ones may be heated by air rising from a burner 12, the outer junctions being cooled by air flowing into the casing 16. The upper and lower parts of the flue 6 are surrounded by heat insulation 19, 22.
Patent GB-293217-A (GB)
Title: Improvements in or relating to boxes or containers for razor blade stropping or sharpening devices
IPC: B24D15/08
Filed: 1927-08-11
Abstract: 293,217. Rolls Razor (1927), Ltd., and Smith, H. M. Melville-. Aug. 11, 1927. Stropping-apparatus.- A box or container of the kind adapted to receive a razor blade sharpening device comprising a blade-holding carrier which is reciprocated in the box to move the blade along a stropping or honing surface, comprises two sheet metal frame members 1, 2 which are fitted together and between which the blade holder and its operating mechanism are positioned. At the ends of the frames, inner and outer openings 4, 5 are provided to receive spring fastenings 6 which retain plates 7 carrying the stropping and honing surfaces, and apertures 8 are provided in the frames to receive projections 9 on the plates. Racks 13 on the inner frame are engaged by pinions on the blade holders. Each frame is fitted with a tongue 15 which is inserted in a slot 16 in the other frame and then riveted to hold the frames together. Additional welded, soldered or riveted connections may be provided between the frames. In a modification the mechanism may be assembled in one frame after which the other frame is slid over and locked in position. Thus in Fig. 6 a tongue 17 on the inner frame may be pressed into a slot 18 to lock the frames together.
Patent GB-873112-A (GB)
Title: Improvements in and relating to fuel elements for nuclear reactors
Inventor: HARTNELL-BEAVIS MICHAEL CARL
IPC: G21C3/06
Filed: 1958-07-02
Abstract: 873,112. Nuclear fuel elements. GENERAL ELECTRIC CO. Ltd. June 25, 1959 [July 2, 1958; Dec. 9, 1958], Nos. 21218/58 and 39661/58. Class 39(4). A fuel element for a nuclear reactor of the kind wherein the elements are situated in cooling channels comprises a carrier adapted for insertion in a channel, the carrier being formed with or providing at least one duct through which coolant may flow, and a plurality of fuel members arranged across the or each duct at intervals in the direction of fluid flow through the ducts. Figs. 1 and 2 show a plan and cross-section of an arrangement comprising a number of rows of fuel members in two groups of columns of which the end members are 2a, 2b. The fuel members are elliptical in section and comprise fuel, such as uranium dioxide, enclosed within a sheath and provided with graphite spacers at each end to prevent overheating of the ends. Sheathing is completed to allow as much voidage as possible for the accumulation and retention of fission product gases. The fuel members are supported at their ends in slots formed in graphite spacers 8 which are assembled in grooves formed in opposite walls of a square duct in a carrier 1 of graphite or other suitable material. The fuel element can be charged and discharged as a composite assembly into a fuel channel and is provided with slots 13 for engagement by a fuel handling probe. The carrier 1 is recessed at diametrically opposite regions for engagement by keys 14 provided in the fuel channel to orientate the element. In another arrangement, Figs. 4, 5 (not shown), the carrier is a hollow cylinder formed in two halves joined together. Fig. 6 shows a partsectional elevation and Fig: 7 a section along line D-D of Fig. 6 of a fuel member for this arrangement. The stainless steel sheathing of the member is elliptical in section and contains 8 pellets 30 of uranium dioxide. The fuel is provided with holes 34, 35 which reduce its central temperature and collect fission product gases, A magnesium oxide spacer 31 is provided at each end to protect the end caps from the high temperature of the fuel in operation. The end caps are welded to the sheathing and carry spigots 33 which engage holes in the carrier wall and retain the member in position. In an alternative fuel member Fig. 8 (not shown), the fuel is in the form of rods and is enclosed in a sheath of impermeable graphite, the space between the rods and the sheath being filled with spongy graphite. The fuel members may be provided with fins which may vary in size or spacing along the member. The fuel members need not lie parallel to the cross-section of the carrier but may be inclined, alternate members in each row being inclined in opposite directions, Fig. 9 (not shown).
Patent GB-1029736-A (GB)
Title: Process for preparation of regenerated cellulose fibres from viscose
IPC: D01F2/06
Filed: 1963-05-28
Abstract: 1,029,736. Spinning viscose. TEIJIN Ltd. May 28, 1963 [May 28, 1962], No. 21312/63. Heading B5B. Cellulose xanthate derived from alkali cellulose having a D.P. of at least 800, the alkali cellulose being derived from cellulose pulp having an average D.P. of at least 1200, is dissolved in a dilute aqueous sodium hydroxide solution to form viscose, and in the viscose (or in the sodium hydroxide solution before dissolving the xanthate therein) there is dissolved 0À15 to 0À30% by weight of a polyalkylene oxide compound, or the reaction product of an amine and an alkylene oxide, or an acid amide. The viscose is then spun into a first spinning bath at 25 to 45 C. comprising an aqueous solution containing not more than 5% by weight of sulphuric acid, not more than 15% of sodium sulphate and 0À005 to 0À3% by weight of the salt of a divalent metal (calculated as the anhydrous salts), the spinning conditions in the first spinning bath being such that the regeneration value of the filaments is from 40 to 60%. The filaments are then stretched in a second spinning bath at a temperature not below 80 C., the second bath comprising a dilute aqueous solution of sodium sulphate not containing more than 1À5% by weight of sulphuric acid.
Patent GB-715582-A (GB)
Title: New pneumatic vibrating device
IPC: B06B1/18
Filed: 1952-08-25
Abstract: 715,582. Vibratory mechanism. LACHAISE, J. C. H. Aug. 25, 1952 [Oct. 9, 1951], No. 21319/52. Class 80 (4) A pneumatic vibrator comprises a cylinder 13 which is rolled around a fixed shaft 3 by a flow of compressed fluid which enters tangentially through one or more series of apertures 9 in a fixed cylinder 1 and leaves by exhaust apertures 11, the dimensions being arranged so that the roll 13 does not contact the fixed cylinder 1. The apertures 9 in each series are inter-connected by a passage 14 provided along a. generatrix of the cylinder 1, and the cylinder is closed by end plates one of which may be integral with the shaft 3. The frequency of the vibrations may be varied by varying the fluid pressure and their strength may be varied by varying the mass of roll 13 and/or off-centreing the inner surface of the roll with respect to its outer surface so that it is of varying thickness. The outer surface of the roll may be longitudinally grooved and its extremities may be provided with anti-frictional rings. It is stated that the roll may be formed by several pieces of varying densities.
Patent GB-140007-A (GB)
Title: Improvements in the sulphonation and chlorination of aromatic substances
IPC: C07C37/62
Filed: 1918-06-05
Abstract: The sulphonation or chlorination of aromatic compounds such as benzene, toluene, or phenol, is effected by atomizing the aromatic compound and sulphuric acid or liquid chlorine into a chamber, from which the mixture passes to a second chamber provided with heating or cooling coils; the product is drawn off from the lowest chamber.  The process may be carried out in the apparatus described in Specification 139,234.  The production of benzene monosulphonic acid and chlorbenzene is described; in the case of chlorination, the second chamber contains a catalyst such as iron, iodine, aluminium chloride, or ferric chloride.
Patent GB-221635-A (GB)
Title: Improvements in brakes preferably for use on motor vehicles
IPC: F16D51/56
Filed: 1923-08-23
Abstract: 221,635. Renwick, W. S. Aug. 23, 1923. Blocks acting on drums; force-transmitting mechanism.-In expanding brakes, each end of each shoe engages with a fulcrum pin about which it can rock and is engaged by a balanced applying-device, so that the effort of applying the brakes is lessened, and the reactions on the drum are substantially equalized. As shown in Fig. 1, a pair of shoes A are adapted to be engaged with the drum by a pair of cams F slidable transversely through slots F<3> in spindles D which are simultaneously operated, and the shoes are adapted to pivot on plain portions of the spindles. When the brake is applied, the shoes move until one bears against the upper spindle and one against the lower, whilst the cams slide through their slots to equalize the forces applied to the shoes. Toggle links may replace the cams F, or a pair of cams connected together by equalizing-means may be used at each end. The fulcrum pins for the shoes may be separate from the spindles D and may be arranged either nearer to or more distant from the axis of the drum than the spindles. As shown in Fig. 5, a single shoe composed of a number of links A hinged together may be used. In this case a single cam F and a single fulcrum pin may be provided, but two pins M are shown.
Patent GB-141780-A (GB)
Title: Improvements in mechanical coal feeds on gas producers
IPC: C10J3/30
Filed: 1918-12-20
Abstract: 141,780. Williams, I. Dec. 20, 1918. Charging.-Fuel is fed into the top of a gasproducer by reciprocating plungers C, Fig. 1, operating in a casing D to which fuel is fed by gravity from shoots G and from which it is discharged by gravity through conduits H. The plungers 0 are operated by a piston B working in a cylinder A, the admission and exhaust valves of which are operated by cams so driven that a vari. able quantity of coal can be fed into the gas-producer. The cams are so arranged that the plungers are withdrawn and pushed forward quickly and then given an interval of rest during each cycle of the feeding operation. Fig. 2 shows the cam-disk S, driven by a cone pulley and gearing (not shown), for operating the slide valves W, W<1> of the cylinder A. The disk S is provided with cam-surfaces S<1>, S<3> adapted to engage a roller U on the valve-actuating slide T, and a cam-surface S<2> adapted to engage a roller U<1>. As the cam rotates, the cam-surface S' engages the roller U and pushes the valves W, W<1> to the right, so admitting steam to the cylinder A and withdrawing the plungers C to admit fuel to the casing D. The cam S<2> then engages the roller U<1> and moves the slide valves to the left, and steam is admitted to the cylinder A so as to move forward the plungers C and feed the fuel to the producer. The cam-surface S<3>, which is smaller than the cam-surfaces S<2>, S<3>, then engages the roller U and brings the valves W, W<1> into their central position. Steam is then shut off from the cylinder A and the plungers remain at rest.
Patent GB-167773-A (GB)
Title: Improvements in or relating to trench traversing mechanism for vehicles
IPC: B60B15/26
Filed: 1921-08-11
Abstract: 167,773. Kegresse, A. Aug. 12, 1920, [Convention date]. Motor-cars, wagons, and the like; stands or supports for vehicles.-To enable wheeled vehicles to pass over trenches and other depressions in the ground, the axle near each wheel is fitted with an arrangement of beams carrying rollers or endless bands which engage the ground when the ordinary wheel drops into a trench &c. The rollers 8 or endless bands 13 are raised clear of the ground under ordinary conditions, the beams 2 between which they are carried being connected to the axle by a spring 4 and pivot. One or more of the rollers may be connected to the beams 2 by springs or two rollers may be carried by smaller beams pivoted to the main beams 2.
Patent GB-674129-A (GB)
Title: Improvements in or relating to proteinaceous adhesive, sizing and coating compositions and the preparation thereof
IPC: C08L89/00
Filed: 1949-08-17
Abstract: An adhesive, sizing or coating compound, which is used dispersed in water, comprises an alkali-solubilized protein and a fluid-stabilizing amount of a compound having the formula R.NH.C(: NH).NH.CN, where R is H (the compound then being dicyandiamide) or a 1-4 C alkyl group or a 2-4 C alkylol group.  The alkyl group may be isopropyl-, n-butyl- or isobutyl-.  The alkylol group may be ethylol or isopropylol.  The protein may be casein or a vegetable protein, e.g. wheat, soya, maize or barley protein. The amount of protein may be from 5 to 50 per cent of the weight of the aqueous dispersion. The amount of the fluid-stabilizing compound may be from 5 to 30 per cent of the dry weight of the protein.
Patent GB-625518-A (GB)
Title: Improvements in manure drills
IPC: A01C7/08
Filed: 1947-08-06
Abstract: 625,518. Manure distributers. AKTIESELSKABET GYRO SKIVE JERNSTOBERI & MASKINFABRIK. Aug. 6, 1947, No. 21403. Convention date, Aug. 26, 1946. [Class 6(i)] A manure distributer, of the kind having an elongated hopper with bottom orifices feeding manure to pans 7 rotatable about vertical axes, is characterized in that the hopper is longer than the distance between the land wheels 2 and is arranged forwardly of the wheels, the hopper being made in two parts 5 and 6 separately rotatable about vertical pivots 10 and 11 to occupy transport positions parallel to the line of draught. The machine comprises a substantially triangular frame 1 the apex of which is connected to a tractor 4. The wheels are mounted at the rear end of the frame and each wheel drives the spreading mechanism asociated with the appropriate part of the hopper 5, 6. The portion 8 of the frame behind the hopper may accommodate an operator.
Patent GB-1517850-A (GB)
Title: Photoconductive belt
IPC: H01L31/08
Filed: 1976-05-24
Abstract: 1517850 Photoconductive printing member OCE-VAN DER GRINTEN NV 24 May 1976 [28 May 1975] 21453/76 Heading B6C [Also in Division G2] The ends of a photoconductive belt are joined together by adhesive strip covering an arrangement of tabs which extend from each end over the surface of the opposite end, on the same side of the belt. The tabs or ends 1, 2, Fig. 1, can be sharp-pointed at 3 so as to rest on the rounded valleys 4 of the opposite end. Alternatively, they can take the form of small triangles (20), Fig. 4 (not shown), triangular extensions (31) on square projections (30), Fig. 5 (not shown), just comprise the square projections themselves, be dovetailer, or curved sinusoidally. In each embodiment, the tabs rest on part of the opposing end, generally on the side away from the support layer of the belt. The ends 1, 2 can be provided with openings 5 which co-operate with projections (8), Fig. 3 (not shown) on a mounting tool which can be fixed in a copying machine or entirely separate. Adhesive strip (a) covers the entire area of the join and tabs.
Patent GB-170371-A (GB)
Title: Improvements in trolley-wheel guides for electric traction
IPC: B60L5/10
Filed: 1920-07-16
Abstract: 170,371. Master, S. D. July 16, 1920. Arrangements for replacing collectors; trolly pulleys.-Star-shaped replacer-wheels have outwardly - inclining spokes and hubs 9 engaging annular recesses 8 in the sides of the trolly pulley 3. Insulation 10 may be provided. The Provisional Specification states also that the wheels may be integral with the pulleys, that the spokes, or the wheels themselves, may be made of insulating- material, such as ebonite or porcelain, and that in the case of pulleys with spiral replacer-grooves, the spokes may be in line with the hub and not inclined.
Patent GB-770642-A (GB)
Title: Improvements relating to squeeze driers
IPC: D06F47/06
Filed: 1953-08-04
Abstract: 770,642. Wringers. HOOVER, Ltd. July 9, 1954 [Aug. 4, 1953], No. 21556/53. Class 138 (2). [Also in Group XXVI] A squeeze drier includes a container 10 for wet clothes capable of contracting to compress the clothes by the application of suction to the interior of the container, the container being connected by a pipe 13 to the inlet 21 of a suction pump of the helical gear type having a rotor 29 rotating and moving orbitally in relation to and within a stator 20 which is formed of resilient material and has one more tooth or screw start than the rotor 29, the working space of the pump decreasing between the inlet and delivery ends so that water vapour as it is withdrawn by the pump from the container through the pipe 13 is compressed as it passes through the pump. This decrease in the working space causes condensation when the pump is drawing water vapour alone so as to produce a lubricating and sealing water film. The decreasing working space may be produced by decreasing the pitch of the thread, the crosssectional diameter, or the eccentricity of the rotor from the inlet to the delivery end. In the example shown, the eccentricity and pitch of the rotor 29 are both constant, the crosssectional diameter being tapered. The rotor 29 may be moulded from synthetic resin and the stator 20 may be of rubber, an integral portion 30 allowing orbital movement of the stator body 27. According to the Provisional Specification the rotor 29 may be connected to its driving shaft 26 through universal joints to allow the rotor to execute its orbital movement. Specification 748,128 is referred to.