baber/WOPTO huggingface dataset:
Patent GB-433519-A (GB)
Title: Improvements in tracks for sliding doors and the like
IPC: E05D15/06
Filed: 1935-02-12
Abstract: 433,519. Tracks for sliding doors &c. ALDAM, E. H., Britannic Works, Haslemere Avenue, Wandsworth, London. Feb. 12, 1935, No. 4471. [Class 104 (ii)] A channel-shaped track a for the rollers of sliding doors &c. is provided with integral projections a<1>, a<4>, a<6> on its side walls whereby it is anchored in the floor or ground.
Patent GB-694595-A (GB)
Title: Improved process for producing precision castings
Inventor: SMITH CYRIL
IPC: B22C7/02
Filed: 1951-02-26
Abstract: 694,595. Casting composite articles. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 14, 1952 [Feb. 26, 1951], No. 4619/51. Class 83 (i). Moulding processes.-In a method of precision casting, the pattern consists of a metal or alloy of low-melting point or of a thermoplastic material of similar cooling and setting characteristics and is coated with a thin skin of a metal or metals having a higher melting point than that of the pattern so that after the melting of the pattern the skin remains in the mould to receive the casting metal, for which it provides a protective coating. The skin is wholly or mainly of higher melting point than the cast metal and any part of the skin having a lower melting point is such as to alloy with the casting metal. A pattern of a zinc alloy is made by casting the alloy into a master mould and is then given a thin coating of copper, followed by a heavy coating of chromium. The coated pattern is invested in the mould material, preferably sand rammed and pressed around the pattern. During the baking of the mould, the alloy melts and is run-off, leaving in situ a skin or shell of chromium into which the casting metal, usually steel, is poured or injected. The copper coating serves to bond the chromium and the cast metal to form a chromium-coated article. Chromium coated steel blades for gas turbines may be made by this method. A plastic of the poly-vinylchloride group may be used for the pattern instead of an alloy.
Patent GB-991043-A (GB)
Title: Improvements in or relating to the fractionation of biological cell material and apparatus therefor
IPC: G01N33/483
Filed: 1963-02-05
Abstract: <PICT:0991043/C6-C7/1> Biological cell material such as bacteria, fungi, spores, viruses and blood cells are fractionated into readily separable cell wall and protoplasm components by compressing a suspension of the cells, passing the compressed suspension through a small orifice into an expansion chamber, cooling an inert gas, conducting the gas in a coil around the means for compressing the suspension of cells to absorb heat generated by the compression process, re-cooling the inert gas, and circulating the re-cooled gas continuously into the expansion chamber to cool the latter and the orifice.  A specimen of biological cell material in liquid suspension is pumped by a plunger (22)-operated pressure cell 19, Fig. 4, from a supply <PICT:0991043/C6-C7/2> bottle 12 by way of a non-return valve 14 and tubes 18 and 28 into an expansion valve assembly 29, and upon being processed through the expansion valve the fractionated cells then pass though a tube 31 into a receiver bottle 32 containing a quantity of the suspending medium.  The materials in the receiver bottle are subsequently physically separated in a centrifuge.  The pressure cell 19 and expansion valve 29 are maintained at the requisite low temperatures by the circulation of gaseous cooling medium consisting of dry nitrogen, air, carbon dioxide or other neutral medium from a pressurized supply tank 61, sequentially through a coil 69 extending around the pressure cell and then into the expansion valve; the gaseous medium passes with the fractionated cells into the receiver bottle 32 and is vented through tube 34. Prior to each cooling, the gaseous medium is itself cooled in coils 67, 72, by heat exchange with a refrigerant liquid (specified) circulating in a coil 62.  The expansion valve assembly 29, Figs. 1 and 2, includes an inlet line 104 for the suspension, an annular recess 103 and radial parts 102 for distribution of the suspension in the valve chamber 101, valve head 91 and an expansion chamber 118. The expansion chamber, the lower portion of valve head 91 and the valve seat 116 are cooled by introduction of gaseous coolant (specified) through line 121, Fig. 1; the gas and fractionated cell material pass through outlet 124. The valve 91 is mounted on its stem 88 within an adjustable valve stem screw 83; a set screw 87 maintains the valve stem 88 in proper position in respect of stem screw 83. After the requisite pressure of the suspension has been achieved in the system, valve head 91 is very slightly retracted from constriction 116 by rotating valve stem screw 83 a small fraction of a turn thereby forcing the suspension into the expansion chamber. The valve system may be compartmented into a separate enclosure 132, Fig. 4, so that the processing of the cell materials may take place in an environment which may be irradiated by ultra-violet rays or perfused with inert gases or bactericidal or germicidal sprays, in order to protect the cell material from contamination.
Patent GB-898895-A (GB)
Title: Improvements in nuclear reactor charging arrangements
Inventor: WOOTTON WILLIAM ROBERT
IPC: G21C7/12
Filed: 1958-02-12
Abstract: 898,895. Nuclear reactors; handling nuclear reactor fuel elements. BABCOCK & WILCOX Ltd. Feb. 11, 1959 [Feb. 12, 1958], No 4671/58. Class 39(4). In a gas-cooled graphite-moderated reactor for ship propulsion, tubes serving as guides for the control rods are articulated and may also serve as fuel element charge shoots after removal of the control rod positioning apparatus. As shown, Fig. 2, an articulated tube 21 extends from the biological shield 24 through the pressure vessel 23 to the top plate 22 of the core 11 and guides a control rod 20 suspended by a cable 35 from a drum 38 driven by a motor 36. A piston arrangement 39 interposed between the cable 35 and rod 20 enables the rod to be driven downwards in an emergency by a CO 2  bottle 44 as disclosed in Specification 898,894. A support member 31 co-extensive with the tube 21 is rotatably mounted in a recess 34 and has a cylindrical upper part 32 surrounding the tube 21, the lower part 33 being of arcuate section. Prior to a fuelling operation the rod 20 is fully inserted, the cable 35 de-clutched therefrom and the winding gear 36, 38 removed and replaced by a charging machine 17, Fig. 3. The lower part of tube 21 comprises three lengths 46, 47, 48 interconnected by bellows hinges 49, 50, the length 48 being connected to the upper part of the tube by a bellows hinge 51. The lengths 46, 47 are both telescopic and the length 46 is connected to a foot 52 by a bellows hinge 54. Links 55, 56 controlled by a Bowden cable (not shown) releasably connected to the machine 17 enable the tube 21 to be located above a selected fuel channel 45, the foot 52 resting in a recess 53, the correct orientation of the tube 21 and support 31 having been previously obtained by a drive member 60 which rotates the parts 21, 31. When the tube 21 has the configuration A a fuel element may be lifted from the core by a grab cable (not shown) into the tube length 47, the tube then being brought into configuration B and the fuel element raised into the machine 17. A new fuel element is similarly inserted by moving the tube from position B to position A.
Patent GB-608081-A (GB)
Title: Improvements in or relating to spectacles
IPC: G02C1/04
Filed: 1946-02-14
Abstract: 608,081. Spectacle frames. PICCADILLY LABORATORIES, Ltd., and GLUCKSTERN, H. Feb. 14, 1946, No. 4725. [Class 97 (i)] Spectacles in which the lenses are supported relative to each other by a frame of plastic including a bridge-piece and portions extending only partially around the periphery of each lens is characterised by the fact that each lens is secured on the frame by straps or the like of metal carried by the frame and to which the lenses are attached by screws or rivets. As shown, the frame comprises elements 18, 21 connected to the lens by metal straps 22 riveted or moulded to the elements. The straps for the elements 21 may be extensions of the hinge. In a modification, the elements 18, 21 are fixed across the upper contours of the lenses forming a unitary structure. According to the Provisional Specification the lenses may be secured to the frame by glue, cement, screws or rivets.
Patent GB-920910-A (GB)
Title: Improvements in or relating to closure cap for bottles or other containers
IPC: B65D41/04
Filed: 1961-02-08
Abstract: 920,910. Threaded closures. WHEELING STAMPING CO. Feb. 8, 1961 [Feb. 9, 1960], No. 4769/61. Class 125(3). A screw threaded closure has an annular flange 6 and an abutment 5 against which the lower portion of said flange is supported when it engages a container top. It may be made of a plastics material.
Patent GB-814970-A (GB)
Title: Improvements in and relating to roller presses and rolls therefor
IPC: B30B15/34
Filed: 1956-02-15
Abstract: 814,970. Briquetting roller-presses. KOPPERN, H., and SCHAFER, H. [trading as MASCHINENFABRIK KOPPERN & CO. K. G.]. Feb. 15, 1956 [Feb. 17, 1955], No. 4788/56. Class 87(2). A roll for a briquetting roller-press comprises a hollow cylindrical body 1 with integral hollow trunnions 4 united to the body 1 by frustroconical end walls 2, the roll having a tyre 10 and, beneath the tyre 10, a helical groove 20 forming with the tyre a passage for heating or cooling mediums, the ends of the passage 20 being connected to pipes 22, 24, passing axially through the trunnions 4, for the supply and discharge of the fluid. Pairs of rolls are rotated by meshing rings 14, 16 the rings 16 and spacers 18 serving to locate the tyres 10.
Patent GB-209699-A (GB)
Title: Improvements in or relating to surface propulsion boats
IPC: B63H5/16
Filed: 1923-02-19
Abstract: 209,699. Hickman, W. A. Jan. 10, 1923, [Convention date]. Rudders. - Vessels fitted with a semisubmerged propeller are provided with fixtures designed to counteract the unbalanced lateral thrust of the propeller. This end is achieved by means of a plate or plates 42, 43, Fig. 3, secured to and extending aft of the stern. The plates may be stiffened by connecting them at the top by an arch 30 which serves as a splash guard. The plates may also be connected beneath the level of the water. Alternatively, the propeller is enclosed in a hollow open-ended cylinder. The twin rudders 60, Fig. 7, located at each extremity of the stem on outwardly-inclined pivots are actuated by rack and pinion gear 56, 57. In another form, the counterbalancing plates take the form of flexible plates 62, Fig. 8, which are linked together and flexed by suitable mechanism to serve as rudders. Specifications 5064/11 and 3951/15 are referred to.
Patent GB-607951-A (GB)
Title: Improvements in counting mechanism
IPC: G06M1/04
Filed: 1945-02-12
Abstract: 607,951. Counting-apparatus; zeroizing. SOAG MACHINE TOOLS, Ltd., (trading as SOAG MACHINERY CO.), and EDLER, O Feb. 12, 1945, No. 4854/44. [Class 106 (i)] A counter which closes a circuit when a predetermined total is registered comprises a set of counting wheels, a set of numeral wheels which are preset to the desired total, and a set of switching members controlled both by the counting wheels and the preset wheels to close the circuit when the said total is reached. The closing of this circuit also causes the automatic zeroizing of the counter. The counter C is operated by electric impulses which energize an electromagnet 6 to lift an armature 7 connected by a link 9 to a lever 12 carrying a ratchet pawl 13 driving the units wheel of the counter. A cam 18 on the units wheel bears on an arm 23 of a switching member or plate 20 which can slide and pivot about a pin 21 and which has an upper arm 19 engaging a similar cam 18 fixed to a numbered wheel D manually preset to the units digit of the desired total. Cams 18, a wheel D, and a plate 20, are provided for each denomination of the counter. When a counter wheel C registers the same digit as the corresponding preset wheel D, the cams 18 move the plate 20 into a horizontal position in which it can make a circuit through contacts 29. The contacts 29 for each plate 20 are in series and the circuit is thus completed when the counter C registers the number set upon the wheels D. Contacts 31, closed only when the armature 7 is in its rest position, are also included in the circuit so that this latter cannot be completed until the final counter-advancing stroke is terminated. The circuit closed by the counter may control the slip-inserting device described in Specification 608,025, [Group XVI]. Zeroizing-mechanism.-When the counter reaches the predetermined total and the circuit is completed as described above, an electromagnet 32 is energized to lift a link 35 which rocks a frame 38 anticlockwise about a pivot 39, the frame carrying transfer pinions which are thus disengaged from the counter wheels. The frame also has pawl fingers 39<1> which engage heart cams 401 on the counter wheels to return these to zero. Zeroizing can also be performed at any time by closing the circuit of the electromagnet 32 by a push-button switch, not shown.
Patent GB-524970-A (GB)
Title: Improvements relating to furnaces for the heat treatment of metal objects
IPC: C21D9/00
Filed: 1939-02-14
Abstract: 524,970. Furnaces for the heat treatment of metal articles. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and SCHIELDROP, B. H. Feb. 14, 1939, No. 4885. [Class 51 (ii)] In an annular tunnel furnace for heat treating metal articles such as ingots, the charge is supported on a fixed hearth and the firing is advanced progressively around the furnace. In the furnace shown in Figs. 1 and 2, ingots 4 are supported on the fixed hearth 2 of the furnace 1 which has side walls 3 and a rotary annular roof 5. A partition 9 depends from the roof into the furnace and is arranged between charging and discharging openings 10, 11 in the roof. Burner ports 21 are arranged at intervals around the furnace and the gases are withdrawn through a flue 16 which rotates with the roof and communicates with a central outlet flue 19. During operation burners heat the charge adjacent to the partition 9 on one side of it and the gases flow around the furnace to the flue 16. When the ingot near the partition is sufficiently heated it is removed through the opening 11 in the roof which is then rotated a distance equal to the interval between adjacent ingots. The charging hole 10 is then over an empty position on the hearth and a fresh ingot is then inserted on the cool side of the partition. This cycle of operations is continued, fresh burners being put into operation as the roof is rotated and the burners previously in use being extinguished. In a modification the side walls rotate with the roof and the cross section of the furnace chamber is varied in shape. The burners are arranged to deliver through ports in the hearth. In a further modification the side walls only rotate, the charging and discharging openings and the waste gas exit being arranged therein. The burners may be controlled automatically.
Patent GB-342907-A (GB)
Title: Means for simultaneously locking the doors of motor cars or other vehicles
IPC: E05B65/36
Filed: 1930-02-13
Abstract: 342,907. Bolt and latch fastenings. HEDGES, A. E., Kingston, Station Road, Taunton, Somerset. Feb. 13, 1930, No. 4890. [Class 44.] The usual latches or bolts of motorvehicle doors are locked by supplementary means, all simultaneously operated by keyactuated means. A barrel lock 16, Fig. 2, rotates a spindle 12 to which is keyed a cam disc 12<a> retained by a spring-pressed plunger and keyed to a chain or Bowden-cable 14. This cable passes through a steel tube 28 to the opposite side of the vehicle, and on each side actuates a bell-crank lever or a slide 27 so as to lock the latches or bolts. The locking is effected by lugs 26<a>, Fig. 7, on the slide which engage slots 25 or projections on the nose 5 of the latch, or engage behind a rear extension 36 of the latch-bolt. The discs 12<a> may also be directly operated by an interior handle.
Patent GB-1204503-A (GB)
Title: Improvements in or relating to tanks
Inventor: PROCTOR FRANK HANSLOW
IPC: B29C70/08
Filed: 1967-02-01
Abstract: 1,204,503. Moulding containers; laminates. F. H. PROCTOR. 25 Jan., 1968 [1 Feb., 1967], No. 4980/67. Headings B5A and B5N. Insulated containers for the bulk transportation or storage of powders or liquids, are manufactured by providing an inner lining 2 to which is applied foamed plastics insulating material 5 in sheet form followed by a layer of glass fibre, whereafter the structure is placed in a mould and impregnated with a resin which is cured. The lining may be fabricated from shaped and welded thermoplastics sheet, e.g. p.v.c. or polyporpylene, which may have glass fibre bonded thereto or may be wrapped in glass fibre; alternatively, stainless steel, aluminium alloy, or aluminium or titanium may be used, which may also be wrapped with glass fibre, or the lining may comprise epoxide, polyester or bisphenol resin, which is formed by coating of a wax or polyvinyl acetate release agent coated collapsible or inflatable mandrel, and may be reinforced by a polyethylene terephthalate tissue applied to the mandrel or the resin coat, and preferably with further glass fibre reinforcement applied to the resin coat. The foamed plastics material comprises foamed sheet polyurethane, polystyrene or expanded P.V.C. and reinforcements 6 of balsa wood or preformed glass fibre sections may be incorporated. The impregnation with epoxy, bisphenol or polyester resin is conducted in a fibre-faced concrete, polished metal, cellulose or propylene sheet mould comprising separable upper and lower parts 8, 9 and preferably provided with a displaceable end to facilitate the production of different lengths of container; the resin may be introduced through inlet 10 into the mould after evacuation through a vent 11, or may be introduced under pressure into the base of an unevacuated mould, and ejection of the moulded container may be assisted by air introduced through orifices 13. A mould insert 12 is removable when desired to mould an understructure to the container. Storage tanks are preferably of circular section and transportation tanks of semi-elliptical section and a supporting structure, e.g. preformed blocks of plastics foam or balsa wood wrapped in glass fibre or steel or aluminium beams, or manholes or walkways, may integrally be moulded therein or the container may comprise an integrally moulded assembly of smaller tanks. Larger containers may incorporate surge baffles in the lining thereof which may be reinforced with balsa wood.
Patent GB-921250-A (GB)
Title: New dyes of the tetrazaporphin series
Inventor: BAUMANN HANS
IPC: C09B62/10
Filed: 1961-02-10
Abstract: The invention comprises water-soluble or insoluble tetrazaporphin dyes which contain attached via an amino group, at least one group of the formula <FORM:0921250/IV(a)/1> where X is a hydrazine or an alkyl or acyl substituted hydrazine group and Y is chlorine, bromine, hydroxyl, mercapto, sulphonic acid, a primary, secondary or tertiary amino group, an ether or thioether group or a hydrazine or substituted hydrazine group. The dyes are made by condensing at temperatures of up to 40 DEG C. one mole of cyanuric chloride or bromide in either order with one mole of a tetrazaporphin dye containing at least one primary or secondary amino group and one mole of hydrazine or an alkyl or acyl hydrazine, the remaining halogen atom on the triazine ring if desired being replaced by a hydroxyl group by hydrolysis or by a mercapto, sulphonic acid, a primary, secondary or tertiary amino, an ether, thioether, hydrazine or substituted hydrazine group by treatment at temperatures of up to 100 DEG C. with a metal sulphite or sulphide, ammonia, a primary or secondary amine, an alcoholate or mercaptan or hydrazine or a hydrazine derivative.  The methylol compounds of the dyes are made by reaction of the above dyes with formaldehyde.  Examples are given. The water-soluble dyes dye and print wool, silk or polycaprolactam fibres and dye leather and paper.  The methylol compounds of the dyes and the esters and ethers thereof dye and print textile materials of natural or regenerated cellulose, and these or the dyes themselves may be applied together with hardenable amino-plast forming substances or precursers thereof and possibly with aldehydes such as formaldehyde in the presence of acids or acid-reacting compounds such as ammonium chloride and the fabric then subjected to heat treatment. In examples cotton fabric is dyed with an aqueous solution containing one of the above dyes and either (1) 1:3-dimethylol-5-methyl perhydrotriazone-2 and monoammonium phosphate, or (3) dimethylol-dihydroxyethylene urea and ammonium nitrate, and the fabric is then heated.  Specification 827,569 is referred to.
Patent GB-237314-A (GB)
Title: Improvements in or relating to sealing and stoppering receptacles
IPC: B65D41/16
Filed: 1924-02-27
Abstract: 237,314. Penn. R. W., Brown, R. S., and Reece, H. J. Feb. 27, 1924. Detachable stoppers secured by clamping devices.-The sealing of bottles, jars, and other receptacles is effected by providing the receptacle mouth or cover, or both, at the abutment zone with a curved, cambered or like surface which produces deformation of the cover when in the sealing position. The lip 2 of a bottle 1 is formed with a cambered upper surface 3 which provides high parts 4 at substantially 90‹ to low parts 5 and distorts the cover 6 when it is applied to the bottle, maintaining it in that condition through the engagement of the inturned edge of its flange 7 beneath the portions of the lip 2 adjacent the low parts 5. The cover and the receptacle mouth may be provided with more than one locking flange. In another form the mouth of the bottle is flat and the cambered surface is provided on the cover by curving it. The cover is removed by pressing inwards the parts of the rim adjacent the high parts. A sealing ring or disc of rubber &c. may be employed between the top of the receptacle and the cover.
Patent GB-690406-A (GB)
Title: Improvements in cereal purifier machines
IPC: A01F12/44
Filed: 1951-03-02
Abstract: 690,406. Pneumatic separating. SIMON (HOLDINGS), Ltd., H., and LOCKWOOD, J. F. Jan. 31, 1952 [March 2, 1951], No. 5078/51. Class 117 A cereal purifier comprises a reciprocatory sieve a through which air is drawn, above which is a series of trays c which are spaced apart so that air drawn through the sieve passes upwards between the trays and impurities carried by the air currents are deposited in the trays, the exhausted air then passing to the conduit d. In the complete machine the space above the trays is divided into sections by transverse division plates as e to provide a number of compartments, the sieves varying beneath the several compartments so that there is a graded separation along the length of the machine. The gaps between the trays c are arranged to progressively decrease from the head to the tail end of each compartment and in this way the variation of air resistance due to the layer of stock on the sieve becoming progressively thinner from the head to the tail end of each compartment is avoided. The width of the gap at f may be twice the width of the gap at f<SP>1</SP> and the trays may be adjustable to vary the gap. They may be inclined or reciprocated transversely to the sieves to effect discharge of the material to a side trough.