baber/WOPTO huggingface dataset:
Patent GB-262911-A (GB)
Title: Improvements in or relating to shafts or spindles particularly for supporting paper supply rolls in printing presses
IPC: B65H75/24
Filed: 1925-11-23
Abstract: 262,911. Goss Printing Press Co. of England, Ltd., and Smith, E. J. Nov. 23, 1925. Collapsable spindles. - A spindle, particularly for supporting a paper roll in a printing-press, comprises a sleeve A in which a screwed rod D, or two such rods in axial alignment, is rotatably mounted but held against axial movement, and has threaded upon it a number of wedge blocks C in which are held gripping- members B adapted to move radially in slots in the sleeve upon rotation of the rod or rods D to grip or release the core E of the roll F. The ends of the rod or rods D are adapted to be engaged by the side-lay devices G<1>, G<2> when the spindle is inserted in the press.
Patent GB-1524074-A (GB)
Title: Electrically conductive composite materials
IPC: C22C1/10
Filed: 1976-07-12
Abstract: 1524074 Sintered silver cadmium oxide barium composite SQUARE D CO 12 July 1976 [15 July 1975] 29577/75 Headings C7A and C7D An electrically conductive composite material consists of a mixture of Ag, not more than 20 wt. per cent CdO and a Ba compound equivalent to not more than 10 wt. per cent Ba, such as at least one of the oxide, peroxide, hydroxide or carbonate. The preferred composite consists of 15% CdO, 0À194% Ba as the oxide the balance Ag. The composite is made from a mixture of Ag and CdO powder which is heated in a reducing atmosphere to form a Ag-Cd alloy which is then heated in an oxidizing atmosphere at 180‹C below the melting point to form Ag-CdO. After adding a solution of a Ba compound to the Ag-CdO, the slurry is dried, heated to form the required Ba compound, sieved to -100 mesh B.S. and then compacted and sintered in air at 930‹C. The sintered compact may be coined at 60 t.si.
Patent GB-902154-A (GB)
Title: Improvements relating to straight-bar knitting machines
IPC: D04B11/00
Filed: 1960-08-26
Abstract: 902,154. Knitting-machines. SCHELLER, TEXTILMASCHINENFABRIK G.m.b.H. GEB. Aug. 26, 1960 [Aug. 29, 1959], No. 29582/60. Class 74 (2). The presser levers 4a imparting a horizontal motion to the needles of a multi-division straight bar machine are pivotally mounted on the same shaft 1 as the needle bar levers 2 imparting a vertical motion to the needles. There is a presser lever 4a provided for each division of the machine and for each lever 4a, there is provided a control lever 9a which determines the position of the needles during the sinker motion. An adjustable screw 25a on the lever 4a engages the control lever 9a.
Patent GB-394367-A (GB)
Title: Improvements in and relating to electrodes for mercury arc lamps for the production of ultra-violet light
IPC: H01J1/00
Filed: 1931-10-26
Abstract: 394,367. Discharge apparatus. HANOVIA CHEMICAL & MANUFACTURING CO., Chestnut Street, Newark, New Jersey, U.S.A.-(Assignees of Anderson, W. T. ; 233, New Jersey Railroad Avenue, Newark, and Fraser. H. D. ; 3, East Lincoln Street, Verona, both in New Jersey, U.S.A.) Oct. 26, 1931, No. 29640. Convention date, June 16. [Class '39 (i).] In a mercury arc lamp for the production of ultra-violet light comprising a liquid electrode of thermal conductivity less than À02 cal. per sec. per cm. per sq. cm. per degree C. enclosed in a gastight insulating container having a leading- in wire sealed therein, metallic substances of higher thermal conductivity are totally immersed in the liquid. A mercury electrode, as shown in the Figure, has a glass, fused silica or quartz container 16, having a lead-in wire 18 of metal which does not amalgamate with mercury, e.g. nickel, iron, tungsten, molybdenum or tantalum, sealed therein, and coils or spirals 19, e.g. of tungsten or molybdenum, are totally immersed in the mercury 15. Other shapes such as rods or wires, foils or woven meshes or gauzes or tubes or plates may be used. According to the Specification as open to inspection under Sect. 91 and as contained in Specification 394,388, alkaline earth oxides, e.g. of barium or strontium may be used instead of mercury. The invention is also stated to be applicable to discharge devices generally. This subjectmatter does not appear in the Specification as accepted.
Patent GB-817051-A (GB)
Title: Improvements in and relating to production of diffraction gratings
Inventor: SAYCE LEONARD ALFRED
IPC: G02B5/18
Filed: 1954-10-14
Abstract: 817,051. Diffraction gratings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 14, 1955 [Oct. 14, 1954], No. 29643/54. Class 97(1) A long diffraction grating is cast in sections from a short master grating (e.g. a replica grating of hardened dichromategelatine) using a transparent stable resin which can be cold set, and discontinuities at the boundaries of each section are avoided by overlapping and aligning the master with the rulings of the previous section. Preferably, for the first section, liquid resin is poured on to a sheet of glass and the master grating placed face down on the liquid and pressed to squeeze out excess. As shown, subsequent sections are cast in the space 12 by liquid resin attracted between the master grating 1 and glass plate 5 by capillarity. The surface of a large plate 5 may be greyed for better adhesion on a small plate and may have a layer of silicon monoxide deposited on its surface in vacuo or tin oxide by cathode spluttering followed by calophony in alcoholic solution. The cold-setting resin may be unsaturated polyester of a polyhydric alcohol and a poly basic acid with or without the addition of a monomer such as styrene to promote cross-linking. The resin may be Marco 28C and may contain. 1 per cent of silicone oil to facilitate separation from the master grating when the latter is also of resin. Apparatus (Fig. 4, not shown) for effecting separation is described. For transmission gratings the refractive indices of the plate 5 and resin 4 are made as nearly equal as possible. Reflection gratings may be aluminized. Very fine wire spacers 11 may be used for locating the master grating. Specifications 468,893, 468,942 [both in Group XVI], 684,846 an 708,539 [both in Group XXIV] are referred to.
Patent GB-192199-A (GB)
Title: Improved process of casting plate glass and apparatus therefor
IPC: C03B13/02
Filed: 1921-11-07
Abstract: 192,199. Kunzler, J. W. Nov. 7, 1921. Delivering molten metal; rolling.-An apparatus for casting plate glass comprises a rotatable cylindrical vessel, extending from and communicating with the melting tank, and having a longitudinal opening through which the metal is delivered on to the casting table when the vessel is rotated on its axis. The device consists of an horizontal cylinder 6 of metal lined with fireclay, which is fitted at one end with a flue 22 and at the other end fits around a discharging nozzle 3 formed in the side of the tank 2. The cylinder is rotatablv supported on rollers 16 and has a longitudinal opening 8. The casting-table 9 runs on rails close below the cylinder, its direction of motion being at right-angles thereto. The roller 11, Fig. 2, is mounted on fixed standards 14 alongside and parallel with the cylinder, its bearings being arranged to allow it to rise and fall freely. In operation, metal runs from the tank into the cylinder, and when the proper quantity has entered, the table is started and the cylinder is turned on its axis, so that the metal runs out of the opening 8 and is spread out in front of the roller. A block 24, Fig. 2, closes the opening 8 while the cylinder is charging, and gas jets inside the cylinder enable the temperature of the metal to be regulated. A smaller opening 25 enables metal to be drained off when required for making cullet.
Patent GB-648856-A (GB)
Title: Improvements in or relating to panelled sheet metal casings
IPC: F22B37/36
Filed: 1947-11-07
Abstract: 648,856. Boiler casings. BABCOCK & WILCOX, Ltd. Nov. 7, 1947, No. 29674. Convention date, Nov. 13, 1946. [Class 123(ii)] [Also in Groups X and XII] In a sheet metal panelled casing wherein the panels are maintained elastically flexed in order to impart increased stiffness thereto, the means for maintaining flexure of panel includes a pair of spaced abutments against which opposite edge portions of the panel are respectively assembled. The invention is shown applied to a steam generator of the type disclosed in Specification 624,585 wherein the roof, front, rear and side walls are lined with fluid tubes backed by insulating material 38 and enclosed by a casing 31 of sheet metal panels 32, adjacent panels being clamped together between channel shaped members 35, Fig. 4, and batten bars 34 by bolts 57, said bars 34 having a width less than the distance between the sides 58 of said members 35 whereby the edges of the panels 32 are sprung to give greater rigidity to the completed casing. Buckstays 26, formed from channel members 45 arranged back to back and enclosing brackets 46 to which are fixed fluid tubes 21, are attached by continuous angle bracket members 49 to sections of the casing 31, the bottom end of each batten bar 34 being secured to a clip angle 52 fastened to the angle members 49 by bolts 54 extending through slotted holes 56, Fig. 5, in said clip angles to permit relative vertical movements between said clip angles 52 and said angle members 49. A filler bar 51 welded to the horizontal leg of each clip angle 52 may close a gap between the clip angles and the flange of the upper buckstay channel 45 to provide positive support for the clip angle while maintaining the desired clearances between the bolts 54 and the ends of the slotted holes 56. Each buckstay is enclosed by a housing 36 comprising a trough-shaped plate 59 with flanges 61 clamped between adjacent casing panels 32 and their associated batten bars 34. Plates 59 are of relatively thin gauge metal providing sufficient flexibility for the housing 36 to function as an expansible connection between adjacent casing sections without disrupting the gas tightness of the casing 31 and where said plates are made in two or more sections such sections are overlapped internally by straight bars 101 and externally by angle bars 102 held together by bolts 104. A housing 37, Fig. 6, encloses a lower buckstay 27 and an associated support column 28, the sides of this housing incorporating panels 32. Specification 625,309 also is referred to.
Patent GB-174419-A (GB)
Title: Improvements in or relating to the manufacture of leather or like bags or other articles
IPC: D05B15/00
Filed: 1920-10-20
Abstract: 174,419. Reid, R. G., Bates, A., Ricks, F., and British United Shoe Machinery Co., Ltd. Oct. 20, 1920. Drawings to Specification. Suit cases are stitched in a sewing-machine of the type described in Specification 7793/92 and each seam is sewn over a second time for a short distance at its end. Expansible frames are used inside the cases to hold them in shape during stitching.
Patent GB-1360202-A (GB)
Title: Electrostatic cleaning apparatus pa'ticularly for cleaning floors  and floor coverings
IPC: A47L13/40
Filed: 1971-06-18
Abstract: 1360202 Cleaning floors; carpet sweepers DEFENCE SECRETARY OF STATE FOR 18 June 1971 [19 June 1970] 29794/70 Heading A4F A floor cleaning apparatus comprises an endless band of insulating material 36, movable around a closed path, means for generating an electro-static charge on the band 38, 40, means for removing dust from the band 46, 48 and means for retaining in the apparatus dust displaced from the band, 54, 56, the charge generating, dust removing and dust retaining means acting on the band at positions away from that portion of the closed path which in use is close to a surface so that the band will pick up dust therefrom by electro-static attraction and the dust will be deposited in the retaining means. A flexible, electrically insulating endless belt 36 passes over rollers 28, 34 which are fast with wheels 24, 30 and is driven thereby when the wheels rotate. Wool felt pads 38, 44, resiliently biased against the belt by rubber or plastics foam pads 42, 44, generate an electro-static charge on the belt as it rubs past them. Flat plates 46, 48 rest lightly on the belt to scrape dust from the belt which falls into the trays 54, 56. The belt may be divided longitudinally Fig.2, (not shown) with brushes on the rollers between the portions of belt, to agitate dust on the surface. Brushes may also be carried by the casing. The apparatus may be driven manually by means of handle 62 or by an electric motor.
Patent GB-728248-A (GB)
Title: Improvements relating to hypodermic injection apparatus
Inventor: UYTENBOGAAR JOHANNES WILHELMUS
IPC: A61M5/24
Filed: 1952-11-25
Abstract: 728,248. Hypodermic syringes. ROOSEBOOM, A. Nov. 25, 1952, No. 29812/52. Class 81 (2). An automatic injection device comprises power means which cause projection of the needle and which are disengaged from the medicament container support after a predetermined travel has been effected. In one form a tube 29, carrying a needle 27 at one end, is normally held against movement by a latch 34<1> engaging a notch 31. The further end of this tube bears against the plunger 43. of an ampoule 42, the edge of which is engaged by pawls 45 and which is urged towards the left by a spring 35 bearing on a tubular support 36 which presses against the -rear side of the lip 41 by further pawls 40. When the protecting cap 20 is removed, the latch 34<1> is free to be moved and if it is released, the entire ampoule and needle assembly is moved to the left by .the spring 35. After a predetermined movement, however, the pawls 45 engage the edge of a tube 49 and are closed inwards thereby so that the ampoule is no longer held by them, but is moved onwards by spring 35, relative to the plunger, to expel the medicament. As this' operation is completed, the outer pads on pawls 40 slide outwardly on the chamfer 55, at the end of tube 34, so that the spring 35 is thus completely disconnected from the ampoule, which is free to move backwards under the action of a light spring 48, the needle being withdrawn at the same time. In order to insert a fresh ampoule the tube 34 is detached from the body member 51, by a bayonet or similar fastening, the spent ampoule is taken out, a fresh one is placed in position against the pawls 45, the body of the ampoule is inserted between the pawls 40, which are drawn inwards by pressing the body 36 into the tube 34. The body 51 and tube 34 are then pressed together, thereby compressing the spring 35 until the bayonet connection can be re-engaged. In modifications, balls may replace the pawls 40 and a double ended ampoule may be used, the plunger being thrust forward by a cylindrical member on a tubular device corresponding to the holder 36.
Patent GB-1187483-A (GB)
Title: Improvements in or relating to Delay Methods and Delay Lines for the Transmission of Ultrasonic Signals
IPC: H03H9/36
Filed: 1967-06-28
Abstract: 1,187,483. Electromechanical delay lines. KENNECOTT COPPER CORP. 28 June, 1967 [6 July, 1966], No. 29906/67. Heading H3U. An ultrasonic delay line in which unwanted higher order dispersive modes are not propagated comprises a delay medium in the form of a thin foil or a thin fibre in which the ratio df/V is substantially less than 1 where V = velocity of waves through the delay medium, f = frequency of waves, and d = thickness of the delay medium. Piezo-electric electric transducers of conventional size are coupled to the delay medium in such manner that in the case of a thin foil they make line contact therewith and in the case of a thin fibre they make point or line contact therewith. As shown in Fig. 1a the delay medium 10, formed by a thin fibre (or thin foil), rests lightly on supports 12, 13 and piezoelectric transducers 14, 16 supported by means not shown have their active faces 18, 20 making point contact with the fibre ends. In a modification, Fig. 1b, the ends of the delay medium 10 are encapsulated in absorbing terminations 42, 44. In a further modification, Fig. 1c, the delay medium 10 is supported by a single support 46.
Patent GB-990240-A (GB)
Title: Dielectric contents gauge capacitor and method of manufacture
Inventor: SMITH ALBERT HENRY
IPC: H01G4/04
Filed: 1961-08-18
Abstract: 990, 240. Measuring liquid level. SIMMONDS PRECISION PRODUCTS Inc. Aug. 18, 1961, No. 29927/61. Heading G1N. In order to manufacture liquid level capacitors within reproduable limits one of the electrodes consists of a first layer 12, Fig. 3, of conductive material provided with a gap 14 and secured to one side of an insulating support 10 so as to face the other electrode and a second layer 72 of conductive material secured to the opposite side of the support adjacent the gap where it can modify the fringing effect between the two electrodes 16, 12, the amount of the second layer affecting the fringing being modified by an operator to obtain the desired result. The strip 72 may be applied by the use of a conductive varnish or metallic spray and adjustment may be made by the addition or removal of the material at appropriate points. The strip is connected to a guard electrode 20 and to earth but may alternatively be connected to the electrode 12. The application of the invention to capacitors profiled to compensate for the shape of the tank and to capacitors using helical electrodes is described and a suitable metallic spray and varnish is exemplified. A self balancing bridge for measuring the capacitance is described with reference to Fig. 1 (not shown).
Patent GB-248121-A (GB)
Title: Improvements in or relating to the sifting of granular or pulverulent materials
IPC: B07B1/22
Filed: 1924-12-13
Abstract: 248,121. Harrison, A. C. Dec. 13, 1924. Fixed sieves.-Apparatus for filtering material such as potter's slip comprises a fine lawn or sieve supported on a coarser lawn or sieve and a reinforcing foundation grid or screen against the pressure required to force the material through it. In one construction, Fig. 3, the sifting appartus consists of a cylindrical perforated metal drum 9 supported by end castings 8, 29 and covered by one or more intermediate layers of coarse brass mesh material 33 and fine phosphorbronze mesh 34. The drum is mounted on a bearing 6 in a cast-iron cylinder 1 to which the slip is fed under pressure from a pipe 21. The sifted slip passes by way of the hollow standard 11, valve 13 and pipe 14. A plug hole 27, closed during the sifting operation, gives admission to a spray pipe 28 for damping the sieve or washing it. A brush 25 adjustably secured to the cylinder 1 is adapted to sweep the accumulations from the sieve when rotated by the hand-wheel 31. A drain pipe 15 carries off the water and residues. In a modification, the reinforced sieve may be mounted at the bottom of a suitable container, the pressure being obtained either by suction or by the weight of the material itself.
Patent GB-465126-A (GB)
Title: Improvements in or relating to the separation of solid materials of different specific gravities
IPC: B03B5/36
Filed: 1935-10-31
Abstract: 465,126. Separating solid materials. VOOYS, G. J. DE. Oct. 31, 1935, No. 30102. Convention date, Oct. 31, 1934. [Classes 82 (ii) and 117] The sink material from a sink and float separation in a fluid separating medium of higher density than water is separated into fractions of different specific gravities by subjecting it to current treatment in a stream of the same separating medium which is in communication with but operates independently of the main body of the medium used in the initial sink and float separation. A plurality of streams, in series or in parallel, may be employed so that the sink material from the initial separation is separated into more than two fractions. The separating medium may be a solution, a suspension of solids in liquid, e.g. sand in water or a sludge of clay, barytes, and water, or it may be a suspension of solids in gas, e.g. sand in air. The streams used in the current treatment preferably move in closed circuits. The apparatus shown comprises a vessel A in which the initial sink and float treatment is carried out and a delivery vessel D for the heaviest product. These vessels contain separating medium in a substantially static condition, though small currents, preferably controlled by means of adjustable overflows, may exist due to the supply of medium to replace that removed with the separated fractions or due to the recirculation of small quantities of overflowing medium. The lightest material floats in the vessel A and is drawn off by any known means. Between the vessels A and D is provided a vessel comprising tubes B and C, to which the sink material from A passes through a connection E. An upward current of medium is produced in one of the tubes, e.g. the tube B, by any suitable means, for example a screw propeller e, a pump, a turbine, or compressed air. The lighter part of the sink material is carried up the tube B and removed by any suitable means, the liquid passing into the tube C through the connection F, and the heavier fraction sinks into the well H of the delivery vessel D. A plurality of closed circuit separating vessels may be arranged in series or in parallel between the vessels A and D, the currents in the several vessels having uniform velocities of different magnitudes. The upward-current separators may, if desired, be replaced by separating vessels utilizing horizontal currents.
Patent GB-652840-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D29/22
Filed: 1948-11-19
Abstract: 652,840. Centrifugal pumps. DEXINE RUBBER & EBONITE, Ltd., and FOREMAN, W. E. Nov. 19, 1948, No. 30105. [Class 110(i)] A pump impeller a, Fig. 1, which may be of ebonite or rubber, is moulded around the end of the impeller shaft b, and a sleeve e which is integral with the impeller extends along the shaft to beyond the end of a packing gland f; around the sleeve e and abutting at one end against the impeller is an acid- and corrosion-resisting metal sleeve i upon which the packing in the gland bears. The sleeve e has an internal flange g at its end engaging an annular recess h around the shaft. An insert c is secured to the shaft by grub screws d. A liquid thrower j is made in two parts and is internally-threaded so as to be clamped on a threaded part of the shaft and turned to hold the sleeve i against the impeller. In a modification, Fig. 4, the sleeve i has projections k which engage with corresponding recesses formed in the back of the impeller. Specification 652,841 is referred to.
Patent GB-1092985-A (GB)
Title: Aqueous lysozyme solution and method of making the same
IPC: C12N9/36
Filed: 1966-07-05
Abstract: Aqueous solutions of lysozyme and/or its salts are stabilised against surface denaturation by addition to the solution of sufficient water-soluble or -dispersible non-ionic surface active agent to give a final concentration of more than 0.0005% by weight/volume. Suitable surface active agents are polyoxyethylenic derivatives such as alkyl or alkaryl polyoxyethylene ethers, and polyoxyethylene-fatty acid and sorbitan fatty acid esters,-alkyl phenyl formaldehyde condensates, -alkyl amines,-alkylamides, and -ethers of hydrogenated castor oil; polyglycerol fatty acid esters may also be used. Preferred concentrations of surface active agents are within the range of 0.005 to 1.0% wt./vol.  Examples are given for preparing sterile injectable compositions of lysozyme or its chloride and (1) hydrogenated castor oil polyoxyethylene ether; (2) polyoxyethylene sorbitan monoleate; and (3) polyoxyethylene stearate, the solutions also containing sorbitol or glucose, and preservatives.