baber/WOPTO huggingface dataset:
Patent GB-754030-A (GB)
Title: Improvements relating to the production of erythromycin
Filed: 1954-05-28
Abstract: Erythromycin is produced by fermenting an erythromycin-producing-micro-organism in a substrate medium containing a water-soluble salt of propionic acid.  Specified are the alkali metal and ammonium salts, e.g. sodium propionate; the alkaline earth and magnesium salts, e.g. calcium propionate; salts of heavy metals such as iron, cobalt and manganese and salts of non-toxic organic bases such as methylamine.  The salt is employed in quantities of 0.05 to 1 per cent of the substrate medium.  The pH is 6.0 to 7.5 and preferably 6.5.  The temperature of fermentation is 25 DEG  to 37 DEG  C. and preferably 26 DEG  to 30 DEG  C.  The medium is preferably aqueous containing carbohydrate 0.5 to 10 per cent, nitrogen source 0.5 to 5 per cent, and nutrient salts up to 1 per cent.  Specified carbohydrates are starch, dextrose, sucrose, dextrin, molasses, brown sugar and maltose; nitrogen sources are corn steep, soya bean meal, distillers' solubles, casein, amino acid mixtures, peptones, brewers' yeast, peanut granules and peanut meal, nitrates and ammonium salts; nutrient salts are those furnishing sodium, potassium, calcium, phosphate and sulphate ions, together with the trace elements cobalt, magnesium, iron and manganese.  A buffer such as calcium carbonate may be present.  The propionic acid salt may be formed in situ by adding propionic acid to the fermentation medium and adjusting the pH with a base.  Specification 708,159 is referred to.
Patent GB-1109591-A (GB)
Title: Improvements in or relating to well packers
IPC: E02D3/12
Filed: 1965-04-14
Abstract: 1,109,591. Wells &c. SOLETANCHE (S.a.r.L.). 14 April, 1965 [15 May, 1964], No. 15912/65. Heading E1F. A packer has a resilient tubular member 6 reinforced with fabric and formed with a cylindrical slit 11, the member being fixed at each end to the packer and expanded into contact with the wall of the borehole by liquid supplied through the packer supporting tubing T. A rubber ball is dropped down the tubing to close a passage 4 at the lower end of the packer, the liquid is supplied to the tubing and passes through holes 3 to expand the member, a tube I is moved downwardly to close the holes and maintain the member in its expanded condition, and the ball is expelled from the tube by the pressure of cement used for cementing the lower part of the well. In a modification (Fig. 4, not shown) the holes have non-return valves (21) and the liquid is drained from behind the packer by rotating a part (20) of the packer to open a further non-return valve (28). In a further modification (Fig. 5 not shown) the inlet and drainage openings of the space behind the member are connected to a liquid filled chamber (32) having a flexible internal wall (33) which permits the pressure of the liquid in the tubing to pressurize the liquid in the chamber.
Patent GB-770101-A (GB)
Title: Improvements relating to lapping machines
Inventor: HANSOM OSWIN PETER
IPC: B24B37/10
Filed: 1955-06-03
Abstract: 770,101. Lapping. FLEXIBOX, Ltd. June 3, 1955, No. 15930/55. Class 60 A lapping machine comprises a rotary lapping plate a with wear rings c within which the articles to be lapped are placed, riding on the plate but restrained from revolving therewith, the wear rings overlapping the lapping surface at both edges but overlapping one edge more than the other, the top. of at least one wear ring being adjustably loaded. The lapping plate a is supported and driven from below by an electric motor (not shown) while the rings c are prevented from moving with the plate by fixed brackets d having rollers e which engage the edges of the rings. The overlap of the rings c, and hence the wear of the plate a, is much greater at the. inner edge f than at the outer edge g. To counteract this, a roller h on a spidle i is secured in a vertically movable part j loaded by a spring k the compression of whch is adjustable by turning a knurled part m, the end q of the spindle i moving in a slot r in a pedestal p to prevent the part j from turning and thus maintain the roller i substantialy parallel to a tangent to the ring c on which it rides.
Patent GB-856907-A (GB)
Title: Acid photographic hardener fixing solutions
IPC: G03C5/38
Filed: 1959-05-08
Abstract: 856,907. Photographic processing. KODAK Ltd. May 8, 1959 [May 12, 1958], No. 15953/59. Class 98(2) An acid hardener-fixing solution having a high proportion of sulphite relative to the hypo and with which less hypo is retained in films and papers for a given amount of washing comprises a hardening agent for gelatin, an acid, 0À25 to 1À6 moles of anhydrous alkali metal or ammonium thiosulphate (equivalent to 40 to 250 grams anhydrous hypo) and 0À6 to 1À5 moles of sulphite per mole of thiosulphate per litre, the sulphite including bisulphite if desired and of which 2 moles are calculated as equivalent to 1 mole of sulphite. Potassium alum, ammonium alum and aluminium chloride are quoted as hardening agents, the acid is usually acetic; and the tetrasodium salt of ethylene-diamine tetracetic acid as sequestering agent as for calcium, copper and iron may be included in the solution. Five examples present the washing results using various hypo/sulphite ratios in comparison with such when using the usual hardener-fixing solutions having about 5 or 10 times as much hypo as sulphite.
Patent GB-652480-A (GB)
Title: Improvements relating to coffin and other like drop handles
IPC: A61G17/04
Filed: 1948-06-15
Abstract: 652,480. Handles. INGALL, PARSONS, CLIVE & CO., Ltd., and PURVES, W. A. June 15, 1948, No. 16044. [Class 52 (i)] In a drop handle a horizontal bar member 10 is provided with integral parallel arms 10a located in two open-ended parallel vertical slots 9b in a fixing plate 9 provided with trunnions 10b engaged in bearings 9c formed by recesses in thickened parts of the fixing plate 9 the trunnions being retained in the bearings by abutment with the surface to which fixing plate is secured. Co-operating trunnions and bearings may be provided on both sides of the arms 10a and slots 9b and a fixing plate may be associated with each arm 10a. While the handles are separate from the surface to which they are to be secured the trunnions are retained in the bearings by plate spring or strip metal members mounted on a stud or studs 9f provided on the inner surface of the base plate.
Patent GB-765483-A (GB)
Title: Baling channel for straw presses
IPC: A01F15/08
Filed: 1954-06-01
Abstract: 765,483. Baling-presses. CLAAS, A., and CLAAS, F. June 1, 1954 [June 1, 1953], No. 16150/54. Class 94(1). A baling-press for straw, hay and similar crops has means for forming grooves in the upper and lower surfaces of the bale where tying is to be effected, said means, Fig. 1, comprising projections d on both sides of each needle slot in the upper and lower walls a, b of the press channel, each pair of said projections being interconnected forward of their respective needle slot to form a point g, Fig. 3, in the plane of motion of the associated needle f. The projections d may be formed with teeth. The point g may comprise an insert of conical or wedge-like shape, the height of which exceeds that of said projections.
Patent GB-784314-A (GB)
Title: Device for laterally displacing material lying on the ground
IPC: A01D78/00
Filed: 1954-09-28
Abstract: The subject-matter of this Specification is identical with that of Specification 784,309 but the claims differ.
Patent GB-497224-A (GB)
Title: Improvements in or relating to common wave radio transmitting systems
IPC: H03L7/16
Filed: 1937-06-11
Abstract: 497,224. Frequency measurements. LORENZ AKT.-GES., C. June 11, 1937, No. 16269. Convention date, June 18, 1936. [Class 37] [Also in Group XXXV] An indicator of phase or frequency difference between main and secondary transmitters in a common-wave radio system is responsive to multiplied values of the main and secondary frequencies. In a system transmitting at 10<6> cycles, where a low frequency derived from the main transmitter is conveyed over a long line to a secondary transmitter the low frequency is multiplied to 10<7> cycles and together with a frequency of 10<7> cycles derived from the secondary transmitter, fed to a comparison network such as a bridge P including rectifiers, inductances and resistances. Unbalance at the bridge is indicated on an instrument J.
Patent GB-439355-A (GB)
Title: Process for the production of plastic materials
IPC: C08G75/16
Filed: 1934-05-31
Abstract: Plastic materials are obtained by reacting a solution of an alkaline polysulphide with an ether comprising two halogenated alkyl radicals wherein the halogen atomas are attached to the terminal carbon atoms. Suitable ethers include b -chloroethoxyethyl - b  - chloroethyl ether but sym-di(b -chlorethyl)-ether is excluded.  Suitable polysulphides include those of potassium, ammonium, sodium, barium, strontium, lithium and triethanolamine.  The reaction may take place in the presence of alcohol and of a dispersing agent such as freshly precipitated magnesium hydroxide.  Suitable polysulphide solutions may be obtained by dissolving sodium hydroxide or sulphide in water and adding sulphur.  In an example a polysulphide solution is treated with b -chloroethoxyethyl b -chlorethyl ether to yield plastic materials.  The product may be used in the manufacture of gaskets, impregnated or coated fabric (such as cloth or asbestos) and in the electrical industry.
Patent GB-219301-A (GB)
Title: Improvements in or relating to vessels in which solids are suspended in liquids for lixiviation, crystallization and the like
IPC: B01D11/02
Filed: 1924-07-07
Abstract: 219,301. Aktieselskapet Krystal, (Assignees of Aktieselskapet de Norske Saltverker). July 17, 1923, [Convention date]. Solids, treating with liquids.-In apparatus for maintaining a granulated solid in suspension in a stream of liquid passing upwards through a perforated partition c, Fig. 1, as, for instance, in producing large crystals or in lixiviating, the size and number of the perforations are arranged, so as to avoid the formation of dead spaces, in such a manner that the ratio S/F is less than #1/# 5 - b/l + a-3/7 where S indicates the area of a circular hole which has the same resistance to the flow of the liquid as the whole of the perforations, F indicates the greatest cross-sectional area in the suspension compartment perpendicular to the flow, a indicates the average distance between the perforations, b the average width of the perforations, and l the average length of the perforations. The suspension may be given a rotating movement either by a stirring device or bv inclining the perforations. The perforations f, Fig. 2, may be placed at the bottom of upwardly diverging spaces u, which may be covered by a perforated or slatted plate to prevent solid material entering the spaces. The perforated plate may have a second plate supported above it, having solid parts above each perforation, to transform the vertical movement of the liquid into horizontal movement, or each perforation may have a hood supported above it. The jets of liquid may be obtained from perforations in the liquid supply pipe, directed downwards against an unperforated base plate. The perforations may also be formed by the spaces between spheres or granules of insoluble material arranged as a layer on a perforated supporting-plate.
Patent GB-839280-A (GB)
Title: Improvements in or relating to gate valves
Inventor: SALOMONSSON SVEN GUNNAR
IPC: F16K3/12
Filed: 1958-05-21
Abstract: 839,280. Valves. FARE ARMATURFABRIK A.B. May 21, 1958, No. 16359/58. Class 135. The housing of a screw-actuated valve of the kind having a wedge-shaped gate coacting with seat inserts 4 is strengthened by the provision of reinforcements 26 joining the connecting flanges 3 with lateral extensions 27 of a flange 5 on which a cover carrying the valve-actuating mechanism is mounted. Strengthening webs 18, 22, 23 extend between the flanges. The base of the housing has a removable cleaning door 21.
Patent GB-1176827-A (GB)
Title: Improvements in or relating to Processes and Apparatus for Cleaning Sewage, Waste Water and like Effluents.
Inventor: PASSAVANT UDO
IPC: C02F1/28
Filed: 1967-04-10
Abstract: 1,176,827. Carbonizing sewage sludge. UDO PASSAVANT. 10 April, 1967 [9 April, 1966; 16 July, 1966], No. 16388/67. Heading C5E. [Also in Division C1] Household effluents are introduced in counterflow and/or cross-current manner into a circulating stream of low temperature coke. The sediment and circulating coke are drawn off upstream of the effluent flow, compressed, recarbonized and fed back into the reactor downstream of the effluent flow. The recarbonization preferably produces low temperature coke. The withdrawn mixture may be supplemented before recarbonization.
Patent GB-145087-A (GB)
Title: Flat warp knitting frame for the production of fabrics which have the same appearance on both sides
IPC: D04B23/00
Filed: 1920-06-17
Abstract: 145,087. Saupe, E. [Firm of]. July 20, 1914, [Convention date]. Warp machines.-Relates to machines employing two rows of bearded needles for the production of warp fabrics having the same appearance on both sides. The movements necessary for formation of the loops are simplified by causing the knocking-over to be effected by means of the lower nibs b<3> of the sinkers b<1> instead of bv means of the nibs b<2> as heretofore. Fig. 4 shows the needles a<1> being pressed by the bar c<1>. The sinker and knocking-over bits b<1> are first moved in the direction of the arrow 1 so as to release the old loops held by the nibs b<2> and then in the direction of the arrow 2 so that the prolongations b<3> place the old loops on the pressed beards. The needles a' are then moved downwards to cast off the old loops. The hooked-shaped presser c<1> is suitably arranged so as to leave sufficient room for the sinkers &c. b<1> to execute their movements, and its subsequent movement is deferred until the sinkers have been moved away. The sequence of movements is repeated on the needles a. Instead of or in addition to the movement of the sinkers in the direction of the arrow 2 there may be a movement of the needle and presser bar in the opposite direction.
Patent GB-125014-A (GB)
Title: Improved Apparatus for the Attachment of Electric Wires to Terminals.
Inventor: WINDIBANK HENRY
IPC: H01T13/04
Filed: 1918-10-09
Abstract: 125,014. Windibank, H. Oct. 9, 1918. Wire terminals.-For connecting an electric wire to a terminal, a spring-action clip having end extending parts is provided on one part with a socket for the connexion of the wire and is adapted to be passed on to the terminal and to be tightened and maintained tightened thereon by means on or attached to the same or the other extending part of the clip. As shown in Figs. 1 and 4, the clip comprises a coil 1 having one end 1<a> secured to a socket 2 upon the wire 3, and the other end 1<b> bent to form a catch which normally is disposed on one side of the socket, as shown in Fig. 1, but, for tightening the coil and for holding it tightened, is passed under the socket and engaged with the other side as shown in Fig. 4. The socket 2 is made from sheet metal, one edge of the piece being bent over to form a tubular housing 5 for the end 1<a> of the coil. For securing the wire to the socket the socket is tightened by pliers or by a hammer blow, and a pointed tongue 7 may be cut in the wall of the socket and bent in to enter or engage with the wire. In a modification, the clip is in the form of an open loop made from a spring-metal strip, and for holding the loop tightened and closed upon a terminal, the free end of the loop is adapted to be engaged by a catch, similar to a purse catch, pivoted upon the straight or stem portion of the clip secured tn the wirereceiving socket.
Patent GB-1091038-A (GB)
Title: Improvements in and relating to sliver drafting machines
Inventor: KEREKGYARTO PAL
IPC: D01H5/02
Filed: 1966-04-14
Abstract: A gill drafting machine comprises a first drafting station in which the gill bars are driven by a screw threaded spindle, followed by a second drafting station in which the gill bars are driven by a chain wheel, and means which monitor the sliver thickness and control the speed of at least one pair of drafting rollers.  As described 36 bast fibre slivers are fed from sliver cans via a guide wheel to the first drafting station in which the top front drafting roller is adjustably weighted, and then to a doubling table having sliver guiding elements - for example slots or bars which may be oblique,-to produce 6 doubled slivers.  The doubled slivers are compressed by rollers, partially converged by oblique bars, passed through the second drafting station and then, doubled to produce one sliver which is compressed and coiled in a can.  The sliver thickness may be optically or electrically monitored and the speed of the drafting rollers of the second, or both drafting stations is thereby controlled.  Alternatively each station may have its own monitoring device.  Each sliver may be monitored and the average value fed to an electric motor driving the rollers.
Patent GB-1505556-A (GB)
Title: Punching apparatus
IPC: B21D37/14
Filed: 1975-04-22
Abstract: 1505556 Punching AMADA CO Ltd 22 April 1975 [26 Dec 1974] 16493/75 Heading B3W A punch device comprises a C frame toolholder 5, bores 17S, 17L of different diameters in the upper arm 7 holding punch 13S, 13L for co-operation with dies 15S, 15L in bores 19S, 19L of corresponding diameters in the lower arm 9. Each aligned pair of bores can receive a range of tools as long as they have mounting portions of the same size as the bores. The holder 5 is slidable manually or by a fluid actuated piston 31, in a channel 29 in a press table 1 to locate the required tool pair between the press ram 1 and a slug discharge bore 33 or to move either pair clear of the press for changing. Each punch unit includes a stripper and a lifter spring 23S or 23L, 25S or 25L respectively. A die support plate 35 may be mounted for reciprocation, manually or by fluid cylinder, below and transversely of the arm 9 between stops (43), (45), Fig. 2 (not shown), to locate small and large slug discharge holes (37), (39), respectively, above the bore 33. As the holder 5 is moved, a finger 49 travels in a groove 51 in channel 29, the holder being positioned for punching with the larger and smaller tools when the finger engages the forward edge of the plate 35 and forward end of the groove 51, respectively. The plate 35 may be omitted, the top of the bore 33 then being made flush with the channel 29. In a modification of the invention to allow the smaller die to be supported about the bore 33. When the plate 35 is omitted, the bore 195 is made the same size as the bore 19L and there is inserted in the larger bore an adapter (not shown) which has a bore to receive the smaller die.
Patent GB-457981-A (GB)
Title: Improvements in and relating to the working of spongy iron into blooms
IPC: C21B13/00
Filed: 1935-06-06
Abstract: In the process described in the parent Specification, gases containing carbon dioxide free from oxygen or air or containing only a small proportion of oxygen, e.g. up to 2 per cent, are used as the oxidizing reaction gases such as the waste gases from Siemens-Martin furnaces.  When the spongy iron is produced by the reduction of iron ores in the furnace, the carbon monoxide produced by such reduction is burnt by the introduction of oxidizing gases into the reduction zone, for example through the wall of the furnace.
Patent GB-1430186-A (GB)
Title: Electrical feedthrough assemblies for containment structures having specially controlled environments and method of making
IPC: H01B17/30
Filed: 1973-04-06
Abstract: 1430186 Feed through elements; electrical installations BUNKER RAMO CORP 6 April 1973 [6 April 1972] 16630/73 Headings H2E and H2C An electrical feed through connector which is hermetically sealed and removably mounted on a support, e.g. header plate 10, and in a receiving hole 12 therein, consists of a cast feedthrough module 110, of insulating material, e.g. thermosetting resin, which is sufficiently hard to form a hermetic seal and be removably mounted. The module 110 includes a module subassembly comprising dielectric preform 112 supporting one or more crimp-type contacts 115  and is cast in thermosetting resin 120 which may be a high strength epoxy system having a glass filler of at least 50% w./w., with a similar thermal expansion coefficient to the rest of the device, e.g. silicon dioxide having rhombohedral cleavage, particle size less than 10 microns, and treated with gamma-glycidoxypropyltrimethoxysilane. Preferably the filler constitutes 60- 65% w./w. along with a cycloaliphatic or diglycidal ether of bisphenol A epoxy cross-linked with hexahydrophthalic anhydride and catalysed with benzyldimethylene. The module is hermetically sealed by sealing ring 130 comprising C-shaped elastomeric ring member (130a, Fig. 6, not shown) enclosing a helical spring member (130c) of, e.g. stainless steel, and which is disposed in recesses 12a of hole 12. Washer gaskets 124 are respectively interposed between the resin 120 and retaining rings 123 which are threaded into hole 12, and provide a further seal. Locking jam nuts 125 are tightly secured on retaining rings 123. A dielectric resin 127 fills the interior of the retaining rings 123 after the requisite conductors 116 have been secured to feed through conductors 115. Resin 127 is chosen to provide little or no bonding to its contacting surfaces when hardened, and may be replaced with a resilient grommet. A cable clamp 135 may be further provided. A gas, e.g. helium acting as a continuous pressure testing medium is communicated to the feed through module through ports 20 which are coupled together and to external pressure testing means (25) (Fig. 1, not shown).
Patent GB-1157801-A (GB)
Title: Dip Transfer Electric Welding Apparatus
Inventor: COLLINS PETER
IPC: B23K9/10
Filed: 1965-04-20
Abstract: 1,157,801. Arc welding systems. ENGLISH ELECTRIC CO. Ltd., and ENGLISH ELECTRIC ARC WELDING CO. Ltd. 20 July, 1966 [20 April, 1965], No. 16640/65. Heading H2H. A dip transfer welding apparatus having a voltage control means for the arc and electrode wire feed control, has a fixed choke or set of fixed chokes at least one of which has a non air gapped core providing a swinging choke characteristic so as to be effective over a range of current values to produce the appropriate dip transfer operation. The swinging choke may have a shell type iron core formed by interleaved plates, and an auxiliary choke having an air gap in the core may be included, in series, particularly for currents over 200 A. In one example, the swinging choke characteristic is linear when the inductance-current relationship is plotted on logarithmic coordinates.
Patent GB-278634-A (GB)
Title: Improvements in diaphragm pumps
IPC: F04B43/02
Filed: 1927-06-23
Abstract: 278,634. Kinnersley, H. L. June 23, 1927. Buckets; diaphragm pumps.-In a diaphragm pump the valve C is of the flattened tube type formed integral with the diaphragm B, and adapted to open during the downstroke. The diaphragm is clamped between two rings e by bolts f on an actuating yoke E.
Patent GB-627804-A (GB)
Title: Improvements in or relating to roofing tiles
IPC: E04D1/04
Filed: 1947-06-24
Abstract: 627,804. Roofing tiles. VOSS, G. M. June 24, 1947, No. 16669. [Class 87(i)] A roofing tile 1 is provided at its upper end with an inclined surface 7 and a lip or lips 8 and at its lower end with a corresponding bevel 3 and recess 4. The tile, which may be of corrugated cross-section with lateral interlocking means, is provided with hanging ribs 11 and embedded anchoring wires 14 or eyes or hooks to receive such wires.